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waymo-chrysler-pacifica-1Green Car Journal has witnessed the slow but progressive evolution of the primarily gasoline fueled, internal combustion car over many decades. This evolution has included much improved gasoline engines and vehicles, the use of alternative fuels, and cars producing low- or even zero-emissions. It’s been an uphill drive, too often stalled by special interest legislation, economic downturns, wildly gyrating gas prices, and manufacturer subsidized financing for larger and less efficient vehicles. Still, the evolution is well underway.

A second and complementary evolution is also taking place: An electrified, self-driving future for the U.S. and emerging world auto markets that holds increasing potential. Just this week, Waymo (formerly Google’s self-driving car project), signed a deal with FCA to expand its present fleet of 100 fully-autonomous 2017 Chrysler Pacifica Hybrid minivans to 600. Production of the additional 500 self-driving-prepped minivans will ramp up beginning next month, then these vehicles will be outfitted by Waymo with its self-driving technology.

Concurrently, Waymo has launched its early rider program in Phoenix, Arizona that will give select Phoenix residents an opportunity to experience self-driving Chrysler Pacifica Hybrid minivans for the first time. Information about Waymo's early rider program can be found at waymo.com/apply.

todd-kaho-leftThere is a strong push for self-driving autonomous cars sweeping the auto industry. It’s an interesting mix of competing companies merging with both the traditional car brands and the tech industry. The overriding assumption is that taking the driver out of the transportation equation is better for safety and the environment than human involvement in the operation of the vehicle.

Full disclosure right up front: I am not a fan of the idea of a car driving me rather than me driving the car. You see, the reason I fell in love with cars in the first place is rooted in the fact that I love to drive and want to stay connected to the road. And yes, I prefer a manual transmission over an automatic. The idea of climbing in a vehicle and telling HAL 9000 (reference from 2001: A Space Odyssey) where I want to go doesn’t have much appeal to me.

That said, I do like many of the technological advancements that are making self driving cars possible. They can contribute to both safety and efficiency. My favorite of those currently available is adaptive cruise control. With this technology the vehicle maintains a safe distance from the car or truck in front of you when the cruise control is activated. Most allow the driver to set the distance or buffer the car will follow. If you have the cruise control set on 65 and close on a semi that is doing 60 up a grade, the car will automatically slow to the speed of the truck in front of you. If you pull out to pass, your car will accelerate back up to the preset 65 mph speed if no other slower vehicles are ahead. Adaptive cruise control is becoming more and more common and works quite well.

Forward-facing radar is commonly used and sometimes laser and multiple video cameras as well to judge distance and closing speed. This technology can also safely bring the vehicle to a complete stop when approaching a stopped vehicle or other fixed obstruction. Automatic braking technology can be a life saver if a driver is distracted, falls asleep, or is otherwise incapacitated. And to think that is wasn’t all that long ago that antilock braking was the latest innovation, and now it is mainstream!

True autonomous cars, however, must have input from many other sources to know exactly what is happening all around the vehicle. Sensors to the side, for example, are used in modern lane detection and lane change anti-collision systems. These detect objects to the side of the vehicle and some read lane markings on the road. Most give an audible alert first to get the driver’s attention, but some will actually pulse the steering wheel if they think the situation is urgent. Vehicles currently use some of the same equipment to allow production vehicles to park with little driver input other than engaging the system.

A self-driving car needs to sense conditions 360 degrees around its perimeter. Multiple radars, sensors, lasers, GPS, and cameras must all work together for complete situational awareness. It’s a very complex business when you add in the ability to read traffic signals, watch for pedestrians, motorcycles, bicycles, etc. Car-to-car communication is also a key element in making this all work together.

Naturally, this doesn’t come without additional complexity and expense. I look for a future with vehicles that will always have a steering wheel in front of me and at least two pedals at my feet, though three would be better.

A steady stream of advanced powertrains, new fuel-efficient systems like stop/start, and more alternative fuels have helped raise fuel economy to new heights in recent years, but the latest breakthrough in energy-efficient cars may surprise you: safety technology. 

Photo Taken by Ralph Alswang email:ralswang@aol.com 202-745-0455You got it. Safety equals green. New safety systems are fuel economy game-changers, because fewer crashes mean less congestion, less fuel use, and fewer carbon emissions.

Recently in a white paper on autonomous vehicles, the National Highway Traffic Safety Administration (NHTSA) noted that “Vehicle control systems that automatically accelerate and brake with the flow of traffic can conserve fuel more efficiently than the average driver. By eliminating a large number of vehicle crashes, highly effective crash avoidance technologies can reduce fuel consumption by also eliminating the traffic congestion that crashes cause every day on our roads.”

NHTSA is referring to a new generation of energy-saving, life-saving technologies on our roads – and often these systems are money-saving and time-saving, too.

Real-time navigation in cars helps drivers keep their eyes on the road while diverting them around traffic. The Texas Transportation Institute estimates that, in 2011, congestion in 498 metropolitan areas caused Americans to travel 5.5 billion hours more and buy an extra 2.9 billion gallons of fuel, for a congestion cost of $121 billion.

Adaptive cruise control is a new driver assist that automatically keeps a safe distance from the car ahead, keeping traffic running smoothly. A report by MIT estimates that a 20 percent reduction in accelerations and decelerations should lead to a 5 percent reduction in fuel consumption and carbon emissions.

The Federal Highway Administration estimates that 25 percent of congestion is attributable to traffic incidents, around half of which are crashes. Sophisticated automatic braking technology helps drivers avoid crashes, and fewer fender benders improve fuel economy since drivers spend less time idling in traffic.

In the future, autonomous cars may enhance road safety while giving us a leg up on fuel efficiency. After analyzing government data, Morgan Stanley observed, “To be conservative, we assume an autonomous car can be 30 percent more efficient than an equivalent non-autonomous car. Empirical tests have demonstrated that level of fuel savings from cruise control use/smooth driving styles alone. If we were to reduce the nation’s $535 billion gasoline bill by 30 percent that would save us $158 billion.”

With all these benefits, clearly the traditional definition of ‘fuel economy’ is restrictive and counter-productive. We can achieve much more with a broader view. Here’s how.

The federal government established a national fuel economy/greenhouse gas program with the ambitious goal to nearly double fuel economy by 2025. Our compliance is based on the fuel efficiency of what we sell, not what we offer for sale. While consumers have more choices than ever in energy-efficient automobiles, if they don’t buy them in large volumes, we fall short. So we will need every technology available to make this steep climb.

We can still squeeze more fuel savings from safety and congestion-mitigation technologies, but these systems reduce fuel use in ways not apparent in government mileage tests so the government doesn’t consider them towards meeting federal standards.

The federal government should recognize the real-world fuel economy improvements from these safety technologies. In fact, the government can encourage their deployment by allowing automakers to count the demonstrated fuel economy benefits of these safety technologies towards meeting their compliance with the federal fuel economy program.

While automakers don’t advocate speeding, we are urging regulators to put the pedal to the metal on this priority. More rapid adoption of these new technologies will help keep drivers safer, avoid traffic congestion, save time, save money, and reduce fuel use.

Mitch Bainwol is president and CEO of the Alliance of Automobile Manufacturers, www.autoalliance.org

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