BMW’s 330e iPerformance sedan adds yet another level of refinement to this automaker’s popular 3 Series along with a healthy dose of environmental acumen. The 330e plug-in hybrid combines a 184 horsepower TwinPower Turbo four-cylinder with a 76 horsepower electric motor to not only enable all-electric driving, but also some pumped-up performance. The combination delivers a total 252 horsepower and 310 lb-ft peak torque for short bursts to provide the kind of performance expected of a larger engine. Even though batteries make the 330e about 500 pounds heavier than the 320i, it accelerates from 0 to 60 mph in just 6.1 seconds compared to the conventionally powered 320i’s 7.3 second sprint. Power is delivered to the rear wheels via an eight-speed Steptronic automatic transmission.
The 330e’s 7.6 kilowatt-hour lithium-ion battery is located beneath the trunk floor to minimize impact on trunk capacity. Positioning batteries here also results in an ideal 50/50 front-to-rear weight ratio. Charging the batteries is handled via a chargeport located on the driver’s side front fender. Here, An LED light ring provides information regarding charge status. Charging takes about two to three hours when connected to an optional 240-volt BMW i Wallbox charger at home or to a public Level II charger. Alternatively, the 330e can be plugged into a standard 120-volt wall socket to charge up in less than seven hours.
Multiple driver-selectable settings enable tailoring the 330’s responsiveness and efficiency. A Driving Experience Control on the center console offers Sport, Comfort, and Eco Pro modes, while an eDrive button also allows for three modes for electric driving including Auto eDrive, Max eDrive, and Save Battery. Depending on setting, the 330e can determine the most fuel efficient combination of electric motor and engine power under specific driving conditions, moderate acceleration to conserve energy during low battery periods, or enable all electric driving. When battery power drops below 50 percent, Save Battery foregoes electric power and maintains battery charge while allowing the battery to be charged by the engine. This enables pure electric driving later, for example, in urban areas where zero-emissions are preferred or mandated.
BMW’s 3 Series is an ideal platform for the addition of plug-in hybrid power since this is the brand’s most successful model line, representing about a quarter of the automaker’s worldwide vehicle sales with over 14 million sales globally. The 330e carries on where the standard 3 Series leaves off, adding electrification to a stylish and well-equipped model featuring a driver-centered and accommodating cabin and handsome design.
Of course, the 330e iPerformance is also replete with desired standard and optional on-board electronics. Among these are Forward Collision Warning, City Collision Mitigation, Pedestrian Warning, Lane Departure Warning, and a Driving Assistant system that identifies speed limits and no-passing zone information.
The 2017 BMW 330e is EPA rated at 30 combined mpg and 71 MPGe when driving on battery power, with an all-electric driving range of 12 miles and overall range of 350 miles. It has an MSRP of $44,795 that includes destination and handling.
Hyundai's soon-to-come 2017 Ioniq comes in three flavors – hybrid, plug-in hybrid, and electric. All use the same dedicated platform but with distinctly different electrified powertrains, styling cues, and characters.
The Ioniq Hybrid combines a new Kappa 1.6 liter, direct-injected, Atkinson-cycle four-cylinder engine with a 43 horsepower electric motor and 1.56 kilowatt-hour lithium-ion polymer battery. The engine, specifically designed for hybrid application, has an impressive 40 percent thermal efficiency and provides 104 horsepower. Engine and motor together produce a total of 139 horsepower. The Ioniq Plug-In Hybrid also uses the Kappa engine but substitutes a more powerful 60 horsepower electric motor and more substantial 8.9 kilowatt-hour lithium-ion polymer battery, the latter to provide an all-electric range of over 25 miles.
Both hybrids use a six-speed double-clutch transmission. The highly-efficient DCT uses low-friction bearings and low-viscosity transmission oil to achieve both excellent performance and fuel efficiency. Enhancing efficiency and dynamic driving are selectable SPORT or ECO modes. SPORT holds lower gears longer and combines power from the engine and electric motor for maximum performance. In ECO mode, the DCT optimizes gear selection for efficiency, upshifting earlier to achieve fuel economy.
The battery electric variant features a 120 horsepower electric motor, 28 kilowatt-hour lithium-ion polymer battery, and a single-speed transmission. This brings an estimated range of 110 miles and expected 125 MPGe rating. An integrated In-Cable Control Box allows charging from a household electric socket and quicker charging from a 220-volt wall charger is optional. If a public SAE Combo Level 3 DC 100 kilowatt fast-charger is available then battery charging up to 80 percent capacity takes only about 20 minutes.
The sporty hatchback's fluid exterior shape and natural air flow channels emphasize aerodynamic body lines that achieve a 0.24 coefficient of drag. Features like front wheel air curtains, a rear spoiler and diffuser, side sill moldings, floor undercover, and closed-wheel design all contribute to the model’s high aerodynamic efficiency. The Hybrid and Plug-in Hybrid have a three-stage active air flap in the front grille as well.
Unique details provide each of the three models with own identities. The Hybrid's Bi-Xenon HID headlights are surrounded by C-shaped LED positioning lamps that complement Hyundai’s signature hexagonal grille and vertical C-shaped LED daytime running lights. The Plug-In also features low-beam LED headlamps and specially-designed 16-inch alloy wheels. Differentiating the Electric is a sleek, closed front fascia since it has no need for extensive powertrain cooling, plus unique eco-spoke alloy wheels and LED low-beam front headlamps/rear combination lamps sporting a unique pattern.
Weight reduction also contributes to low fuel usage and dynamic handling. The aluminum hood and tailgate reduce weight by 27 pound, lithium-ion polymer battery packs are 20 percent lighter than non-polymer lithium-ion variants. Eliminating the lead-acid auxiliary 12 volt battery in hybrid models saves about 26 pounds.
Placing the battery system beneath the Ioniq’s rear seats results in a low center of gravity and an uncompromised cargo area in the Hybrid. Even the Plug-In and Electric variants, despite larger batteries, offer generous interior volumes. All three use permanent magnet synchronous motors optimized by reducing the thickness of core components up to 10 percent and adopting rectangular-section copper wire to decrease core and copper loss.
Ioniq’s light-yet-rigid body features 53 percent advanced high strength steel. The chassis benefits from superior rigidity for responsive handling and safety, with high impact-energy absorption and minimized cabin distortion to protect passengers in the event of a collision. This rigid structure also includes 475 feet of advanced structural adhesives, which provide both light weight and rigidity benefits.
The hybrid and plug-in use a sophisticated multi-link rear suspension system with dual lower control arms that minimize ride and handling compromises often associated with less sophisticated geometry. Extensive use of aluminum in front and rear suspensions saves about 26 pounds. The Electric uses a torsion-beam rear axle to provide more space for the larger batteries, again placed below the rear seats.
Recycled or ecologically-sensitive materials are used in the Ioniq for less reliance on oil-based products. For instance, interior door covers are made of plastic combined with powdered wood and volcanic stone, headliner and carpets feature raw materials extracted from sugar cane, and paint uses renewable ingredients extracted from soybean oil.
Hyundai’s Blue Link connected car system provides enhanced safety, diagnostics, remote, and guidance services. Blue Link connectivity includes remote start with climate control, destination search powered by Google, remote door lock/unlock, car finder, enhanced roadside assistance, and stolen vehicle recovery. Blue Link features can be accessed via buttons on the rearview mirror, the MyHyundai.com website, or Hyundai’s Blue Link smartphone app. Some features can also be controlled via Android Wear and Apple Watch smartwatch apps. Plug-In and Electric Ioniq drivers will also be able manage and monitor charging schedules remotely via the Blue Link smartphone app.
Innovative active and passive safety features help protect drivers and passengers. These include blind spot detection, lane change assist, rear cross-traffic alert, and a lane departure warning system. The Ioniq is also fitted with automatic emergency braking with pedestrian detection. Smart cruise control allows a constant speed and following distance to be maintained from the vehicle ahead without depressing the accelerator or brake pedals. It’s automatically cancelled when speed drops to 5 mph or below. The electric Ioniq takes it a step further by providing advanced smart cruise control offering fully automatic stop/start function as well.
Volvo's XC90 T8 SUV – Green Car Journal’s 2016 Luxury Green Car of the Year™ – emerged a completely redesigned model in the 2016 model year, the first time the enduring XC90 has had a complete makeover since 2002. It rose to the top to claim the award at the 2016 Washington Auto Show over finalists that included the BMW X5 xDrive40e, Lexus RX 450h, Mercedes-Benz C350e, and Porsche Cayenne S E-Hybrid.
Even though immediately recognized as a Volvo, virtually nothing carried over from the previous generation save for some mechanicals. The T8 ‘twin engine’ XC90, the more efficient sibling to Volvo’s conventionally powered XC90 T6, is a plug-in hybrid that uses Volvo's efficient 316 horsepower, 2.0-liter supercharged and turbocharged Drive-E four-cylinder engine. This engine powers the front wheels through an eight-speed automatic transmission.
A 46 horsepower starter-generator motor located between the engine and transmission provides start-stop capability to enhance efficiency. This motor also enables regenerative braking and can provide additional power to the transmission when maximum performance is required. An 82 horsepower electric motor drives the rear wheels. The battery and both electric motors are liquid-cooled. Battery coolant can also be refrigerated under very hot conditions. Volvo’s new XC90 design locates the lithium-ion battery in the tunnel between the front passenger seats, not beneath the trunk as is the case with many PHEVs. Thus, cargo capacity in this seven passenger plug-in SUV is no less than the conventionally powered T6 that has no batteries.
The T8 has several drive modes. Hybrid is the default and uses power from the gas engine and electric motor as needed for optimum efficiency. Pure mode offers all-electric driving, with the AWD mode driving all four wheels on demand. Save mode conserves battery power for later use. In Power Mode, maximum electric torque is provided from start for great acceleration at low speeds with the Drive-E engine taking over at higher speed.
Drivers have the ability to motor exclusively on battery power up to 13 miles according to official EPA estimates with a total gas-electric range of 350 miles. EPA also rates the T8 at 53 MPGe (mile-per-gallon equivalent) on battery power with a combined city/highway fuel economy rating of 25 mpg during hybrid operation.
The 2016 XC90 is longer, wider, and taller than the previous XC90. It uses Volvo' s Scalable Product Architecture platform that is destined for most future Volvo models. The XC90 T8 comes in base Momentum, more luxurious Inscription, and sportier R-Design trim levels. All include a two-panel panoramic sunroof, leather upholstery, heated front seats, and third-row seating as standard equipment. The illuminated shift lever is genuine Orrefors crystal, probably the first time any automaker has used real crystal glass in a production car.
A Sensus Connect infotainment system brings tablet-like features and convenience to the dashboard of this Volvo model. This system is said to have more processing power than any iPad with incredibly quick response. The touchscreen uses infrared lasers rather than capacitive touch sensors so the smart, intuitive interface can be used while wearing gloves, or even with a pencil or other object.
Volvo’s entire suite of standard safety systems are included plus advanced driver assist items like Lane Departure Warning, Road Sign Information display, Pedestrian and Cyclist Detection, Pilot Assist adaptive cruise control, and Park Assist Pilot automatic parallel and perpendicular parking. World firsts include Auto Braking at Intersections if another vehicle comes into its path from oncoming or side traffic, and should the car swerve off the road its Run Off Road Design pre-tensions seat belts and crushable supports in the front seats absorb crash forces. Safety is, after all, one of this marque’s longstanding core values and the XC90 addresses this in a big way.
With its very limited edition 918 Spyder and more mainstream Panamera S E-Hybrid – not to mention the coming electric Mission E – Porsche has shown that it takes electrification seriously. The premium automaker’s next step in its electrification strategy is represented by the 2016 Cayenne S E-Hybrid, a move that has brought plug-in hybrid power to its popular SUV model.
The Cayenne S E-Hybrid uses essentially the same components as its Panamera sibling to achieve plug-in capability. There have been some changes, like upgrading this S E-Hybrid model’s lithium-ion battery pack from 9.4 to 10.8 kilowatt-hours. This battery replaces the spare tire found in conventionally powered Cayenne models and allows the Cayenne S E-Hybrid to travel about 14 miles on battery power. Electric-only driving is possible at speeds up to 78 mph before the engine starts and the vehicle operates likes a regular hybrid. E-Power is the default mode so the Cayenne S E-Hybrid always starts on electric power, given sufficient battery charge.
An E-Charge mode modifies charging strategy so the electric motor becomes a generator, enabling the battery to recharge up to 80 percent while driving. This provides adequate battery power for electric-only driving once desired destinations are reached, such as urban areas where zero-emission driving may be preferred. Unlike most regenerative braking systems that are either on or off, the Cayenne S E-Hybrid’s regen system provides some modulation in the brake pedal while slowing down.
The Cayenne plug-in uses a supercharged 3.0-liter V-6 mated to an eight-speed Tiptronic automatic transmission, same as the Panamera. A single 95 horsepower permanent-magnet motor located between the engine and transmission provides hybrid capability. Power is delivered to all four wheels via a limited-slip center differential. The supercharged V-6 and electric motor deliver a combined 416 horsepower.
As expected from a Porsche, the Cayenne S E-Hybrid provides excellent performance, especially considering it is a 5,000-plus pound SUV that can carry 5 people and tow up to 7,716 pounds. It can accelerate from 0 to 60 mph in 5.6 seconds, 0 to 100 mph in 14.4 seconds, and has a top speed of 151 mph. Efficiency is a combined 22 mpg in hybrid mode and 47 miles-per-gallon equivalent (MPGe) during electric driving
All this goodness does not come cheap at a base MSRP of $78,700, but that is in line with what one would expect to shell out for a Porsche. The combination of performance, prestige, and greater efficiency combine to make this an attractive offering for Porsche fans.
The all-new, seventh-generation Hyundai Sonata that emerged in the 2015 model year proved this automaker’s ability to offer increasingly sophisticated and compelling models. It featured a more exciting design, improved road manners, and greater use of advanced on-board electronics. What it didn’t offer was a new hybrid variant.
Hyundai strategically retained its previous-generation hybrid Sonata for an additional year as it prepared to add new hybrid and plug-in hybrid models to round out the 2016 Sonata lineup. As Green Car Journal editors found during a recent 500 mile road trip in a 2016 Sonata Plug-In Hybrid Limited, the wait has been worth it. Simply, this efficient plug-in sedan is a joy to drive.
Powering both the standard hybrid and plug-in variants is a 2.0-liter, direct-injected four-cylinder engine producing 154 horsepower and 140 lb-ft torque. This engine is augmented by a 51 horsepower electric motor in the hybrid and a more powerful 67 horsepower motor in the plug-in, with torque output the same at 151 lb-ft.
The primary difference between the two hybrid variants is the size of their lithium-polymer battery. The hybrid we’ve driven before used a 1.6 kilowatt-hour battery, while the plug-in we drove this time uses a much larger 9.8 kilowatt-hour battery pack to provide extended electric driving range of up to 27 miles in electric-only mode. Once battery power is depleted the plug-in variant operates just like the Sonata Hybrid.
An ability to travel those electric miles does come with a bit of trade-off since the plug-in’s larger battery takes up additional space beneath the trunk floor. For comparison, the standard Sonata has 16.3 cubic feet of trunk space versus 13.3 in the hybrid and 9.9 in the plug-in. Still, there’s plenty of trunk space available in our judgment. Charging the plug-in takes about three hours with an available 220 volt Level 2 charger or nine hours with a 120-volt recharging unit that plugs into a standard household outlet.
The plug-in hybrid is distinguished from the standard Sonata with styling ques that include an aero kit, unique front fascia and rear diffuser, and model-specific aluminum wheels. Part of this sedan’s welcome fuel economy comes from enhanced aerodynamics that result in a very impressive 0.24 drag coefficient.
Inside, the five-passenger plug-in hybrid is essentially the same as the conventional Sonata except for a modified gauge cluster with a new color LCD multi-purpose display showing operating data on the hybrid system.
Fuel efficiency is impressive, with the Sonata Plug-In Hybrid rated at an EPA estimated 40 mpg combined fuel efficiency and 99 MPGe while driving on battery power. It features a total driving range of some 600 miles, a welcome feature during our daily drives and our road trip from California’s Central Coast to Los Angeles.
The Sonata Plug-In uses MacPherson strut suspension with a 24.2 mm stabilizer bar up front and an independent multi-link design with coil springs and a 17 mm stabilizer bar at the rear. High performance shocks are used at all four corners. During our drives on highways and twisty canyon roads we came to appreciate the Sonata Plug-In’s comfortable ride and handling dynamics that found us firmly planted through sweeping turns and switchbacks alike. The Sonata’s engine rpm-sensing power rack-and-pinion steering is pleasing and responsive.
While you can get a standard Sonata or Sonata Hybrid at Hyundai dealers nationwide starting at $21,750 and $26,000, respectively, the $34,600 Sonata Plug-In Hybrid is a bit more exclusive and available in just 10 California emissions states.
Toyota has added ‘Prime’ to the branding of its second generation plug-in hybrid electric vehicle (PHEV) to emphasize it’s the most technologically advanced, best-equipped Prius ever. Prime is the first Toyota hybrid to feature a dual-mode generator drive system that enables the Hybrid Synergy Drive’s electric motor and generator to both provide power for maximum acceleration. A new 8.8 kWh lithium-ion battery pack delivers up to 22 miles of all-electric driving, double that of the first-generation plug-in Prius. Toyota estimates 120 MPGe or greater or the model, which is expected to be the highest MPGe rating of any PHEV.
Prime features an array of connected and advanced electronics systems including an available 11.6-inch HD multimedia screen. Prius Prime will start appearing in U.S. showrooms in late fall and will be available in all 50 states.
There are many outspoken and polarizing proponents of the various fuels and technologies at play today. This has been the case for several decades now and isn’t likely to disappear anytime soon. Many electric car enthusiasts do not see a future for internal combustion or even hydrogen fuel cell vehicles. Hydrogen proponents point out that fuel cell vehicles make more sense than battery electrics since hydrogen generally offers greater driving range and fuel cell vehicles can be refueled in under five minutes, while battery electrics cannot. Biodiesel enthusiasts point out the obvious benefits of this biofuel and even as this fuel gains momentum, wonder why support isn’t stronger. Natural gas advocates see huge and stable supplies of this clean-burning fuel now and in our future, without the truly significant commitment to natural gas vehicles this should bring. And those behind internal combustion vehicles achieving ever-higher efficiency simply wonder what the fuss is all about when conventional answers are here today.
So in the midst of all this, where are we headed? Simple. In the right direction, of course.
As I was writing about these very fuels and technologies some 25 years ago, it wasn’t lost on me that the competition for dominance in the ‘green’ automotive world of the future would be hard-fought and long, with many twists and turns. As our decades-long focus on the ‘green car’ field has shown us, the state-of-the-art of advanced vehicles in any time frame is ever-changing, which simply means that what may seem to make the most sense now is likely to shift, and at times, shift suddenly. This is a field in flux today, as it was back then.
When Nissan powered its Altra EV back in 1998 as an answer to California’s Zero Emission Vehicle mandate, it turned heads with the first use of a lithium-ion battery in a limited production vehicle, rather than the advanced lead-acid and nickel-metal-hydride batteries used by others. Lithium-ion is now the battery of choice, but will it remain so as breakthrough battery technologies and chemistries are being explored?
Gasoline-electric hybrids currently sell in ever-greater numbers, with plug-in hybrids increasingly joining their ranks. Conventionally-powered vehicles are also evolving with new technologies and strategies eking levels of fuel efficiency that were only thought possible with hybrid powerplants just a few years ago.
What drives efficiency – and by extension determines our future path to the high efficiency, low emission, and more sustainable vehicles desired by consumers and government alike – is textbook evolution. Cars are adapting to meet the changing needs of future mobility and the imperative of improved environmental performance. Some of these evolutionary changes are predictable like lightweighting, improved aerodynamics, friction reduction, and enhanced powertrain efficiencies. Other answers, including the fuels that will ultimately power a new generation of vehicles, will be revealed over time.
So here’s to the cheerleaders who tell us quite vocally that their fuel, technology, or strategy is the answer to our driving future. One of them may be right. But the fact is, the evolutionary winner has yet to be determined.
There’s something almost magical about plugging your car into an outlet at night and waking up to a full ‘tank’ in the morning. There’s no need for a stop at the gas station, ever. Plus, there’s no nagging guilt that the miles metered out by the odometer are counting off one’s contribution toward any societal and environmental ills attendant with fossil fuel use.
This is a feeling experienced during the year Green Car Journal editors drove GM’s remarkable EV1 electric car in the late 1990s. Daily drives in the EV1 were a joy. The car was sleek, high-tech, distinctive, and with the electric motor’s torque coming on from zero rpm, decidedly fast. That’s a potent combination.
The EV1 is long gone, not because people or companies ‘killed’ it as the so-called documentary Who Killed the Electric Car suggested, but rather because extraordinarily high costs and a challenging business case were its demise. GM lost many tens of thousands of dollars on every EV1 it built, as did other automakers complying with California’s Zero Emissions Vehicle (ZEV) mandate in the 1990s.
Even today, Fiat Chrysler CEO Sergio Marchionne says his company loses $14,000 for every Fiat 500e electric car sold. Combine that with today’s need for an additional $7,500 federal tax credit and up to $6,000 in subsidies from some states to encourage EV purchases, and it’s easy to see why the electric car remains such a challenge.
This isn’t to say that electric cars are the wrong idea. On the contrary, they are perceived as important to our driving future, so much so that government, automakers, and their suppliers see electrification as key to meeting mandated 2025 fleet-wide fuel economy requirements and CO2 reduction goals. The problem is that there’s no singular, defined roadmap for getting there because costs, market penetration, and all-important political support are future unknowns.
The advantages of battery electric vehicles are well known – extremely low per-mile operating costs on electricity, less maintenance, at-home fueling, and of course no petroleum use. Add in the many societal incentives available such as solo driving in carpool lanes, preferential parking, and free public charging, and the case for electrics gets even more compelling. If a homeowner’s solar array is offsetting the electricity used to energize a car’s batteries for daily drives, then all the better. This is the ideal scenario for a battery electric car. Of course, things are never this simple, otherwise we would all be driving electric.
There remain some very real challenges. Government regulation, not market forces, has largely been driving the development of the modern electric car. This is a good thing or bad, depending upon one’s perspective. The goal is admirable and to some, crucial – to enable driving with zero localized emissions, eliminate CO2 emissions, reduce oil dependence, and drive on an energy source created from diverse resources that can be sustainable. Where’s the downside in that?
Still, new car buyers have not stepped up to buy battery electric cars in expected, or perhaps hoped-for, numbers, especially the million electric vehicles that Washington had set out as its goal by 2015. This is surprising to many since electric vehicle choices have expanded in recent years. However, there are reasons for this.
Electric cars are often quite expensive in comparison to their gasoline-powered counterparts, although government and manufacturer subsidies can bring these costs down. Importantly, EVs offer less functionality than conventional cars because of limited driving range that averages about 70 to 100 miles before requiring a charge. While this zero-emission range can fit the commuting needs of many two-vehicle households and bring substantial fuel savings, there’s a catch. Factoring future fuel savings into a vehicle purchase decision is simply not intuitive to new car buyers today.
Many drivers who would potentially step up to electric vehicle ownership can’t do so because most electric models are sold only in California or a select number of ‘green’ states where required zero emission vehicle credits are earned. These states also tend to have at least a modest charging infrastructure in place. Manufacturers selling exclusively in these limited markets typically commit to only small build numbers, making these EVs fairly insignificant in influencing electric vehicle market penetration.
Battery electric vehicles available today include the BMW i3, BMW i8, Chevrolet Spark EV, Fiat 500e, Ford Focus Electric, Honda Fit EV, Kia Soul EV, Mercedes-Benz B-Class Electric Drive, Mitsubishi i-MiEV, Nissan LEAF, Smart ForTwo Electric Drive, Tesla Model S, Toyota RAV4 EV, and VW e-Golf. While most aim at limited sales, some like BMW, Nissan, and Tesla market their EVs nationwide. The Honda Fit EV and Toyota RAV4 EV are being phased out. Fleet-focused EVs are also being offered by a small number of independent companies. Other battery electrics are coming.
BMW’s i3 offers buyers an optional two-cylinder gasoline range extender that generates on-board electricity to double this electric car’s battery electric driving range. A growing number of electrified models like the current generation Prius Plug-In and Chevy Volt can also run exclusively on battery power for a more limited number of miles (10-15 for the Prius and up to 40 miles in the Volt), and then drive farther with the aid of a combustion engine or engine-generator. Both will offer greater all-electric driving range when they emerge as all-new 2016 models. Many extended range electric vehicles and plug-in hybrids like these are coming soon from a surprising number of auto manufacturers.
It has been an especially tough road for independent or would-be automakers intent on introducing electric vehicles to the market. Well-funded efforts like Coda Automotive failed, as have many lesser ones over the years. Often enough, inventors of electric cars have been innovative and visionary, only to discover that becoming an auto manufacturer is hugely expensive and more challenging than imagined. In many cases their timeline from concept and investment to production and sales becomes so long that before their first cars are produced, mainstream automakers have introduced models far beyond what they were offering, and at lesser cost with an established sales and service network to support them.
A high profile exception is Tesla Motors, the well-funded Silicon Valley automaker that successfully built and sold its $112,000 electric Tesla Roadster, continued its success with the acclaimed $70,000-$100,000+ Model S electric sedan, and will soon deliver its first Tesla Model X electric crossovers. While Tesla has said it would offer the Model X at a price similar to that of the Model S, initial deliveries of the limited Model X Signature Series will cost a reported $132,000-$144,000. It has not yet been announced when lower cost 'standard' Model X examples will begin deliveries to Tesla's sizable customer pre-order list.
Tesla’s challenge is not to prove it can produce compelling battery electric cars, provide remarkable all-electric driving range, or build a wildly enthusiastic – some would say fanatical – customer base. It has done all this. Its challenge is to continue this momentum by developing a full model lineup that includes a promised affordable model for the masses, its Model 3, at a targeted $35,000 price tag. It will be interesting to see if the Model 3 ultimately comes to market at that price point.
This is no easy thing. Battery costs remain very high and, in fact, Tesla previously shared that the Tesla Roadster’s battery pack cost in the vicinity of $30,000. While you can bury the cost of an expensive battery pack in a high-end electric car that costs $70,000 to over $100,000, you can’t do that today in a $35,000 model, at least not one that isn’t manufacturer subsidized and provides the 200+ mile range expected of a Tesla.
The company’s answer is a $5 billion ‘Gigafactory’ being built in Nevada that it claims will produce more lithium-ion batteries by 2020 than were produced worldwide in 2013. The company’s publicized goal is to trim battery costs by at least 30 percent to make its $35,000 electric car a reality and support its growing electric car manufacturing. Tesla has said it’s essential that the Gigafactory is in production as the Model 3 begins manufacturing. The billion dollar question is…can they really achieve the ambitious battery and production cost targets to do this over the next few years, or will this path lead to the delays that Tesla previously experienced with the Tesla Roadster, Model S, and Model X?
Tesla is well-underway with its goal of building out a national infrastructure of SuperCharger fast-charge stations along major transportation corridors to enable extended all-electric driving. These allow Tesla vehicles the ability to gain a 50 percent charge in about 20 minutes, although they are not compatible with other EVs. For all others, Bosch is undertaking a limited deployment of its sub-$10,000 DC fast charger that provides an 80 percent charge in 30 minutes. A joint effort by ChargePoint, BMW, and VW also aims to create express charging corridors with fast-charge capability on major routes along both coasts in the U.S.
The past 25 years have not secured a future for the battery electric car, but things are looking up. The next 10 years are crucial as cost, infrastructure, and consumer acceptance challenges are tackled and hopefully overcome to make affordable, unsubsidized electric cars a mass-market reality. It is a considerable challenge. Clearly, a lot of people are counting on it.
The BMW i8, the second milestone model to emerge as part of BMW’s innovative ‘i’ sub-brand, earned the distinction as Green Car Journal’s 2015 Luxury Green Car of the Year™ at the recent Washington Auto Show in the nation’s capital. There are compelling reasons for this.
BMW’s flagship i8 not only breaks new ground in defining how a high performance vehicle can achieve environmental goals, but it does so in ways that do not impose limitations on the driving experience. Importantly, this car fits BMW's ‘Ultimate Driving Machine’ image while providing levels of environmental performance increasingly appealing to those buying aspirational vehicles.
BMW i8 LIFEDRIVE ARCHITECTURE
Beneath its stunning, gull-winged body is BMW’s innovative LifeDrive modular architecture. The Life module is essentially the i8's 2+2 passenger compartment constructed primarily of strong and lightweight carbon fiber-reinforced plastic (CFRP), created with carbon fiber manufactured at a dedicated SGL Automotive Carbon Fibers LLC facility in the State of Washington. The result of a joint venture between SGL Group and BMW Group, this manufacturing plant strengthens the i8’s environmental credentials further by producing carbon fiber using renewable hydroelectric energy.
The i8’s aluminum Drive module contains the gasoline engine, lithium-ion battery pack, electric motor, and associated electronic components. It uses a 228 horsepower, 1.5-liter turbocharged three-cylinder engine to power the rear wheels through a six-speed direct shift transmission. Front wheels are driven by a 129 horsepower electric motor and two-stage automatic gearbox. Energy is supplied by a 7.1-kilowatt-hour lithium-ion battery pack located within a tunnel between the two front seats. It can be fully charged in just an hour and a half.
Power can be provided solely by the electric motor for about 22 miles of zero-emission driving at speeds up to 75 mph. Together, the rear-mounted engine and front electric motor deliver all-wheel drive performance with a combined maximum power of 357 horsepower and 420 lb-ft of torque. Drivers are afforded the latest in advanced on-board electronics and safety systems expected in this class of vehicle.
Driving the i8 at speed provides a clear understanding of just what BMW has accomplished with its lightweight, high-tech luxury sports coupe. Green Car Journal editors found the i8’s handling superb and performance exhilarating. BMW’s Driving Dynamics Control allows choices of eDRIVE, ECO PRO, SPORT, and COMFORT drive settings. In Sport mode, the i8 can accelerate from zero to 60 mph in 4.4 seconds and deliver a top speed of 155 mph. Driving range is 310 miles under normal driving conditions. Engine overrun and regenerative braking are used to charge the battery pack and a start-stop feature helps conserve energy.
The BMW i8 blends thrilling performance, innovative design, and environmental achievement in an exceptional luxury sports coupe, while offering a combined EPA city/highway battery electric efficiency rating of 76 MPGe (miles-per-gallon equivalent). Its DNA is 'green' by nature and design, making it a natural selection for 2015 Luxury Green Car of the Year™.
For a decade, Green Car Journal has been recognizing vehicles that significantly raise the bar in environmental performance. With automakers stepping up to offer ever-more efficient and ‘greener’ vehicles in all classes, the magazine’s awards program has naturally expanded to include a greater number of awards for recognizing deserving vehicles.
This prompted the recent suite of Green Car Awards presented during Policy Day at the Washington Auto Show in the nation’s capital – the 2015 Green SUV of the Year™, 2015 Green Car Technology Award™, and 2015 Luxury Green Car of the Year™.
BMW’s gull-wing i8 earned the distinction as the 2015 Luxury Green Car of the Year, outshining competitors Audi A8 L TDI, Cadillac ELR, Porsche Panamera S E-Hybrid, and Tesla Model S. Aimed at aspirational buyers who value superb styling and exceptional performance combined with the efficiency of plug-in hybrid drive, the i8 is unique among its peers with an advanced carbon fiber passenger body shell. It also features a lightweight aluminum drive module with a gasoline engine, lithium-ion batteries, and electric motor. The i8 can drive on battery power for 22 miles and up to 310 miles on hybrid power.
The Jeep Grand Cherokee EcoDiesel rose to the top as the magazine’s 2015 Green SUV of the Year, besting finalists Honda CR-V, Hyundai Tucson Fuel Cell, Lexus NX 300h, and Mazda CX-5. Offering excellent fuel efficiency for an SUV of its size, the Grand Cherokee EcoDiesel’s 3.0-liter EcoDiesel V-6 offers up to 30 highway mpg and is approved for B20 biodiesel use. An Eco Mode optimizes the 8-speed transmission’s shift schedule, cuts fuel feed while coasting, and directs the air suspension system to lower the vehicle at speed for aerodynamic efficiency.
The Ford F-150 was honored with the 2015 Green Car Technology Award for its milestone use of an all-aluminum body. Competing for the award were advanced powertrains in the BMW i3, BMW i8, Chevrolet Impala Bi-Fuel, Ford F-150, Honda Fit, Kia Soul EV, Tesla Model S, VW e-Golf, and Volvo Drive-E models. The F-150’s aluminum body enables the all-new 2015 pickup model to shed up to 700 pounds for greater efficiency and performance.
While the Green Car Technology Award has a history at the Washington Auto Show, the first-time Green SUV of the Year and Luxury Green Car of the Year awards could not have existed just a short time ago. Simply, SUVs and luxury vehicles were seldom considered ‘green,’ and for good reason. An SUV/crossover’s mission was to provide family transport and recreational capabilities, while aspirational/luxury vehicles were expected to deliver the finest driving experience combined with high-end appointments and exceptional design. Both categories held few environmental champions and ‘green’ was hardly an afterthought.
The evolving nature of ‘green’ cars has brought about a fundamental shift in which environmental performance is now important in SUVs and luxury vehicles. Even so, not all models in these classes are created equal. The challenge has been finding the right balance – the ‘sweet spot’ – that finds SUVs and luxury vehicles delivering the efficiency and environmental qualities desired without sacrificing the conventional touchstones – quality, safety, luxury, value, performance and functionality – that consumers demand. This year’s winners of the 2015 Green Car Awards clearly achieve this balance.
Presenting these important awards at the Washington Auto Show is compelling considering its reputation as the ‘Policy Show,’ a result of the show’s proximity to Capitol Hill and the influence that Washington DC has in driving a more efficient generation of vehicles to market. The 2015 Washington Auto Show has also expanded in recent years, receiving accreditation from the Organisation Internationale des Constructeurs d'Automobiles (OICA) as one of the five top tier auto shows in America. This year’s Washington Auto Show featured more than 700 vehicles from over 42 domestic and import auto manufacturers, plus a Green Car Awards exhibit showcasing 15 finalist vehicles within the show’s Advanced Technology Superhighway exhibit area.
The Consumer Electronics Show is a big deal in the consumer electronics industry. With the expanding integration of advanced electronics into cars it has become a high-profile venue for auto manufacturers as well, with automaker CEOs giving keynote addresses and auto press conferences growing in volume. Most of these involve connectivity, autonomous driving, and other advanced on-board systems. But the scope is expanding significantly as CES is growing ever-brighter on the automakers’ radar.
A case in point is Chevy’s move to provide a sneak peek of its all-new 2016 Chevy Volt extended range electric car at 2015 CES. This preempts the official debut of the new Volt at the coming North American International Auto Show (NAIAS) in Detroit, one of the auto industry’s premier events.
The ‘peek’ was just that – a teaser showing the new Volt’s front end and a bit of the driver’s side, with the rest blocked with purposeful positioning and a strategically placed speaker tower. Still the front end view showed a handsome evolutionary design with the partial profile that could be seen indicating a somewhat smaller model with a redefined roofline and window design. It has been previously disclosed that the 2016 Volt will use a new 1.5-liter engine-generator, a bigger battery pack, and offer additional range.
It is an exciting time to be involved with the auto industry, or to be in the market for a new car. The auto industry has responded splendidly to the challenge of new emission, fuel economy, and safety standards. The public is offered a greater than ever selection of vehicles with different powertrains, lightweight materials, hybrids, and electric drive vehicles across many platforms. We see increasing numbers of clean diesel vehicles and natural gas is making a resurgence, especially in the heavy-duty sector.
The positive response by the auto industry to the ever-tightening pollutant emission and fuel economy standards includes tactics such as the use of aluminum in the Ford F-150 and the increased use of carbon fiber by BMW, among many innovations introduced across many models and drivetrains. These evolutionary changes are a major tribute to the automobile engineers who are wringing out the most they can in efficiency and reduced emissions from gasoline and diesel engines. I view this evolutionary change as necessary, but not sufficient to meet our greenhouse gas goals by 2050.
New car ownership is currently down in Europe and is leveling off in the U.S. For global automotive manufacturers, however, this trend is offset by the dramatic growth in places like China and India. The potential for dramatic growth in the developing world is clearly evident: In the U.S., there are about 500 cars per thousand people, compared to about 60 and 20 in China and India, respectively.
How can these trends be reconciled with the environmental and health concerns due to climate change and adverse air quality in the developing world? The evidence for climate change accumulates by the day. Hazardous air quality in many major cities in China has drawn global attention, providing a visual reminder of how far the developed world has come and how much environmental protection needs to be accelerated in the developing world. Damaging air pollution is increasingly seen as a regional and even worldwide challenge. Dramatic economic growth in many developing countries is generating pollution that knows no boundaries. Air pollution from China, for example, fumigates Korea and Japan and is even transported across the Pacific to impact air quality in California and other Western states.
It will take a revolutionary change to provide personal mobility without unacceptable energy and environmental consequences. As a recent National Academy of Sciences (NAS) document states, it is likely that a major shift to electric drive vehicles would be required in the next 20 to 30 years. Electric drive vehicles, coupled with renewable energy, can achieve essentially zero carbon and conventional pollutant emissions. The NAS report also predicted that the costs of both battery and fuel-cell electric vehicles would be less than advanced conventional vehicles in the 2035-2040 timeframe.
This transition will not occur overnight and we will be driving advanced conventional vehicles for many years to come. In a study for the International Council on Clean Transportation, Dr. David Greene calculated that the transition could take 10 to 15 years, requiring sustained investment in infrastructure and incentives in order to achieve sustained penetration. While this investment is not inexpensive, it is projected that the benefits of this investment will be 10 times greater than the costs.
So where do we stand today on electric vehicles? We are seeing an unprecedented number of hybrid, plug-in hybrid, and battery electric vehicles across many drivetrains and models. There were about 96,000 plug-in electric vehicles sold or leased in the U.S. last year and more than 10 new PEV models are expected this year. While the sales fall short of some optimistic projections, it is an encouraging start after many years of more hope than delivery. The FC EV is expected to see significant growth after the initial limited introduction of fuel cells in the 2015-2017 timeframe by five major automobile companies.
It will take many years of sustained increasing penetration into new car sales to make this revolution a success. It is indeed a marathon and not a sprint. The challenge is how to ensure sustained sales of electric drive vehicles in the face of the many attributes of advanced technology conventional vehicles. Electric drive vehicle drivetrains have an affinity with the increasing amount of electronics on board the vehicle, which might ultimately yield very interesting, capable, and competitive vehicles.
I have little doubt that if we are serious about our energy, environmental, and greenhouse gas goals the revolution in technology will occur. All the major automobile companies seem to recognize this in their technology roadmap, which includes advanced conventional vehicles, plug-in hybrid vehicles, battery and fuel cell electric vehicles.
In conclusion, the next 20 years promise to be equally as challenging and exciting as the last 20 years. I have little doubt that the automobile engineers are up to the task ahead, but whether we have the political fortitude to stay the course to achieve the necessary air pollution and GHG reductions is far less certain.
Dr. Alan Lloyd is President Emeritus of the nonprofit International Council on Clean Transportation (ICCT). He formerly served as Secretary of CalEPA and Chairman of the California Air Resources Board.
Illuminating the road ahead is a crucial element in driving. It’s also one that has long benefitted from technological innovation. To this end, Audi celebrates the evolution of automotive lighting with its Sport quattro laserlight concept car. The high performance, two-door, Plasma Red coupe harkens back to the iconic 1983 Sport quattro even as it’s abundant advanced technology and design cues point to the future.
The laserlight concept is named for its future lighting technologies. Two low-profile trapezoidal elements are visible within the headlights. An outer one generates low beam light using matrix LEDs and an aperture mask, while an inner element produces laser light for the high-beam.
Laser diodes are significantly smaller than LED diodes, only a few microns in diameter. They can illuminate the road for a distance of nearly 1,640 feet, approximately twice the lighting range with three times the luminosity of LED high beam lights. This technology is finding use in the 2014 R18 e-tron quattro for track duty.
Motivating the laserlight concept is a 4.0-liter, bi-turbo V-8 TSFI (turbo stratified fuel injection) engine and a disc-shaped electric motor located between the engine and transmission. The V-8 produces 560 horsepower and 516 pound-feet torque, with the electric motor contributing an additional 148 horsepower and 295 pound-feet torque. A modified eight-speed Tiptronic transmission is mated to the quattro drivetrain with a sport differential at the rear axle.
Electrical energy is stored in a 14.1 kilowatt-hour lithium-ion battery, sufficient for 31 miles of all-electric driving. When the V-8 and electric motor are working together, the Audi Sport quattro laserlight concept can accelerates from 0 to 62 mph in 3.7 seconds. Top speed is 189 mph. This impressive performance comes with an equally impressive 94 US mpg fuel economy. This is achieved in part through its electric plug-in operation in addition to a cylinder on demand system that deactivates four cylinders of the V-8 under partial load. Also helping is a start-stop system and several levels of regen braking to enhance driving dynamics.
Drivers can switch between three different modes. In EV mode, just the electric motor operates with sufficient high torque power, even outside the city. The active accelerator pedal indicates the transition by a change in pedal resistance so a driver can intentionally influence the mode selection. The Hybrid mode provides optimal interplay between the V-8 and the electric motor for best fuel-savings, and additionally incorporates environmental and route data. A driver can choose the Hold and Charge modes to ensure sufficient electrical energy is available for electric-only driving at their destination. There are different levels of regenerative braking to enhance the driving experience.
The laserlight’s multifunction sport steering wheel has buttons to control the hybrid drive, start-stop function, vehicle handling system, and the car’s virtual cockpit. Key information is shown on the large Audi TFT display in high-resolution 3D graphics. A cutting-edge Nvidia Tegra 30 processor handles the graphics.
Nearly all functions can be controlled from the further-developed MMI mounted on the center console. Its large rotary pushbutton, which also serves as a touchpad, can be pushed in four directions. It’s surrounded on three sides by four buttons that control the main menu, submenus, options, and a back function. The intuitive layout is similar to a smart phone with all frequently used functions accessed lightning fast.
Lightweight design plays a major role in the Audi laserlight concept’s dynamic performance. A combination of ultra high-strength steel sheet and structural elements of cast aluminum is used in the occupant cell. The doors and fenders are made of aluminum, with the roof, engine hood, and rear hatch and other components made of carbon fiber reinforced plastic (CFRP). Thus, the concept weighs 4,079 pounds including the weight of the large battery pack.
The thought of vehicle-integrated solar cells taking an active role in powering an electric car remains a tantalizing prospect. In fact, the use of solar panels on the roof of a vehicle is not a new idea. It’s been shown that ultra-lightweight solar race cars with solar-packed body shells can actually drive exclusively on the power of the sun. In real life, though, this doesn’t work with production cars weighing thousands of pounds that need to carry varying numbers of passengers and weight, provide the acceleration needed for safe motoring, and in general perform all the functions required of a modern car.
Disappointing to some, car-mounted solar panels typically generate just enough electricity to operate a fan to keep the interior of a parked car cool on a hot day, falling fall far short of providing the kind of energy needed for drive motors. Lowering cabin temperatures in a parked EV does serve a purpose since less energy is needed to cool the passenger space during the early part of a drive. That means less of a drain on batteries needed to power an electric vehicle. In this case, every little bit helps.
There are other answers and solar charging does take different forms. Plenty of EV owners offset their car’s use of electricity through large solar panels on their homes. Many public charging stations also make use of solar arrays to provide at least part of the power needed for charging electric vehicles. These have been the most logical examples of solar charging to date. Still, efforts toward creating the true solar car continue.
The latest example comes from Ford. Working in a collaborative project with long-time solar technology partner SunPower and Georgia Institute of Technology, Ford’s C-MAX Solar Energi Concept embraces an innovative approach that could potentially deliver the same amount of electrical power as plugging a C-MAX Energi PHEV into the electrical grid. The goal is no less than creating a logical stepping stone toward making a solar-powered hybrid feasible for daily use.
Ford’s C-MAX Solar Energi Concept benefits from amplifying the sunlight that enables the car’s already-efficient SunPower solar cells to create electricity. A huge jump in solar energy conversion is accomplished with a special solar concentrator lens that directs intense solar rays to the solar panels on the vehicle's roof. The off-vehicle solar concentrator uses a special Fresnel lens of the type originally invented for use in lighthouses, boosting the impact of sunlight by a factor of eight. Similar in concept to a magnifying glass, the patent-pending system tracks the sun as it moves from east to west.
With the aid of the concentrator, the system can collect enough energy from the sun each day to equal a four-hour battery charge for the C-MAX Energi, about 8 kilowatt-hours. Ford says this is sufficient to deliver the same performance as a conventional C-MAX Energi plugged into the electrical grid. The Ford C-MAX Solar Energi Concept would also have the same total range as a conventional C-MAX Energi of up to 620 miles, including up to 21 electric-only miles. Since the sun isn't always shining, there is still a charge port so this solar Energi variant t can be charged conventionally from the grid.
The special solar concentrator carport used with the C-MAX Solar Energi is conceptualized in a way that maximizes capturing solar energy as the sun moves throughout the day. This requires an east-west carport orientation and also the ability for the car to autonomously move forward and backward beneath the canopy during daylight hours, thus enabling its solar cells to make the most of sunlight directed by the concentrator. As Consumer Reports posits, not only does this require buying into the concept of an unattended car moving all by itself during the day, but also the potential liability issues that could come with it.
Ford studies suggest that the sun could power up to 75 percent of all trips made by an average driver in a solar hybrid vehicle. Solar charging could be especially valuable in places where the electric grid is underdeveloped, unreliable, or expensive to use. In addition, use of a C-MAX Solar Energi could reduce yearly CO2 and other greenhouse gas emissions from the average U.S. car owner by as much as four metric tons – the equivalent of what a U.S. home produces in four months. If all light-duty vehicles in the United States were to adopt Ford C-MAX Solar Energi Concept technology, annual greenhouse gas emissions could be reduced by approximately 1 billion metric tons.
Next up: Ford and Georgia Tech will be testing the concept under real-world conditions. The outcome of those tests will help determine if the concept is feasible as a production vehicle.
Batteries remain the electric car’s most pervasive challenge. After decades of research and development plus billions of dollars of investment, an energy-dense and affordable electric car battery remains elusive. Automakers are acutely aware of this as high battery costs can mean significant losses on every unit sold.
Ford is aiming to meet the challenge head-on with a new $8 million battery lab that’s now operating at the University of Michigan. The goal is to develop smaller and lighter batteries that are also less expensive to produce, resulting in more efficient and affordable battery electric vehicles with greater driving range.
The automaker’s existing battery labs focus on testing and validating production-ready batteries. This new effort will address batteries earlier in the development process, serving as a stepping-stone between the research lab and the production environment. The new lab includes a battery manufacturing facility supporting pilot projects, testing, and state-of-the-art manufacturing to make test batteries that replicates the performance of full-scale batteries.
Battery development is in its infancy and this kind of research is critical, says Ford, as is the need for new chemistries to be assessed in small-scale battery cells that can be tested in place of full-scale production batteries, without compromising test results. The automaker points out that in the span of 15 years, the industry has gone from lead-acid to nickel-metal-hydride to lithium-ion batteries, and it’s too early in the battery race to commit to one type of battery chemistry.
Mitsubishi’s recently-unveiled Outlander plug-in hybrid electric vehicle (PHEV) is a first for this automaker, combining mainstream sport-utility appeal with advanced, plug-in hybrid efficiency. The Outlander PHEV promises drivers the flexibility of an affordable and spacious sport utility that can run in quiet, zero-emission electric mode for commuting, then turn around and handle weekend getaways for five with the cruising range of a conventional SUV. It builds upon the electric drive technology developed for the automaker’s all-electric i-MiEV.
The model’s all-new drivetrain includes a 2.0 liter gasoline engine-generator up front and 80 horsepower electric motors front and rear, with both motors connected to Mitsubishi’s Super All-Wheel Drive Control system. Motors are powered by a 12 kWh lithium-ion battery pack that can be charged in four hours with a conventional 240 volt charging station or just 30 minutes with a quick charger.
What’s most interesting about the Outlander PHEV is how it seamlessly combines smart fuel efficiency and utility. Mitsubishi offers Eco, Normal and Battery Charge driver selectable modes, which focus on maximizing EV time, normal driving, or having the gasoline engine function mainly as a generator to keep the battery charged.
Depending on the state of battery charge, drive mode, and conditions, the integrated management system will automatically choose electric-only, series hybrid, or parallel hybrid mode. In series mode the gasoline engine charges the battery and the vehicle runs on the electric motors, but in parallel mode, like normal hybrids, the gas engine powers the car directly with help from the electric motors. As with other hybrids and EV’s the Outlander generates electricity from both its electric motors during deceleration and regenerative braking.
This new plug-in crossover/SUV offers minimum fuel consumption without sacrificing the four-wheel drive stability or the same dimensions and large 72.6 cubic feet of space that current Outlander owners enjoy (36.2 sq. ft with second row seats up). Gas prices probably aren’t going to be $2.00 any time soon, and customers will always need room to grow. The Outlander PHEV combines real utility with real efficiency. It could be the change that SUVs need.
Based on the Japanese JC08 driving cycle, an electric-only range of 34 miles is estimated with 547 miles achieved on combined gas and electric power. Coming to Japan in early 2013, Outlander PHEV sales will expand to Europe and then the U.S. and elsewhere.