on 2040-cars

Auto blog

Stop-start standard in four-cylinder 2015 Chevrolet Impala

Chevrolet has announced that it will include stop-start technology as standard in the entry level 2015 Impala. The result is a nearly five-percent improvement in city fuel economy, also known as one mile per gallon, up to 25 mpg, combined. The 3.6-liter V-6 Impala will not feature stop-start. The 2015 Impala comes equipped with Chevrolet's 2.5-liter Ecotec four-cylinder engine, which will also offer 22 mpg in the city, and 31 on the highway. The 3.6-liter V-6 Impala will not feature stop-start and the mild-hybrid eAssist model from the 2014 MY, which got 29/25/35 combined/city/highway mpg, has been discontinued. Chevrolet spokesman Chad Lyons told Green Car Reports that not even one percent of the 2014 Impalas purchased were the Eco model. So Chevy is trying something different. With a seamless driving experience in mind, the new Impala's stop-start tech features software that governs under what conditions the feature will activate. The engine won't shut off if the car has not reached a speed of six miles per hour, so the start-stop won't be cycling during traffic jams. It can also fire the starter even if the engine has not come to a full stop, which quickens reaction time, particularly in instances of what Chevrolet calls "change-of-mind events." The stop-start function uses information about cabin temperature and humidity as well as battery charge to help determine whether or not to shut off the engine. The 2015 Impala has been engineered to reduce NVH, which will also help create a smoother stop-start experience for occupants, Chevy says. Motor mounts have been updated, and a burlier starter motor will help restart the engine after a stop. The Impala follows the 2014 Malibu as Chevrolet's second vehicle to feature stop-start tech. The four-cylinder model currently makes up over 30 percent of Impala sales. The 2015 Impala will be available beginning this summer, with a base MSRP of $27,735 (including destination charges). And while one MPG isn't a huge difference, neither is the price increase of just $50 for a bit of eco-minded innovation. Read on for more details in the press release below. Chevrolet Makes Stop/Start Standard in 2015 Impala Technology improves city fuel economy by 5 percent 2014-05-22 DETROIT – Stop/start technology will be standard on the 2015 Impala base 2.5-liter ECOTEC® engine, an addition that improves the vehicle's city fuel economy by nearly 5 percent, or one mile per gallon.

Next-gen Chevy Silverado and GMC Sierra may use carbon fiber

It's been generally accepted that the next generation of full-size GM trucks will use some sort of strong, lightweight material for the beds while retaining steel for the cab. While aluminum seems like the most obvious choice, according to Automotive News, the Chevy Silverado and GMC Sierra will incorporate both aluminum and carbon fiber in their beds. The publication cites sources from within GM, though it seems the introduction of this comparatively exotic material mix is still a few years off. While carbon fiber is both stronger and lighter than steel and aluminum, it takes significantly more time and money to produce, essentially relegating the material to small-volume cars. The main benefit for trucks is the resulting reduction in weight to improve fuel economy without sacrificing the tough, rugged capabilities truck buyers expect. The Ford F-150 made the switch to aluminum for the 2015 model year and it's proved highly successful. It seemed like it was only a matter of time before the competition followed suit. Automotive News says that the next-gen trucks will launch with aluminum beds and that it will take a couple of years before we'll see any carbon fiber incorporated into the design. Even then, only look for the composite material on higher-trim models, with a trickle down to lower-spec trucks possible further in the future. In 2011, GM announced it was working with Japan-based Teijin Limited on a carbon fiber reinforced thermoplastic. There's a good chance that material's introduction will be on trucks. Related Video: News Source: Automotive News Plants/Manufacturing Rumormill Chevrolet GM GMC Truck

Recharge Wrap-up: Chevy Volt CarPlay video, Tesla Supercharger importance

A video demonstrates Apple CarPlay on the touch display in the next-generation Chevrolet Volt. The Volt's eight-inch (bigger than an iPad Mini) capacitive display is capable of putting Siri and your iPhone apps and right at your fingertips. It's "the best CarPlay display I've seen," says the user in the video. In case you're not in the market for a new Volt, 9to5Mac offers some of its favorite aftermarket CarPlay screens. See the video above, and read more at 9to5Mac. A single Supercharger can make a big difference in the life of a Tesla owner. Teslarati's Electric Jen talks about purchasing a Model S, being assured by both Tesla employees and the map of planned Supercharger sites that one would be built along an important route for her. With the construction being pushed back, it made visiting family tricky. "As if owning such a grand car isn't embarrassing enough, asking for a ride to drop off and pick up said car because you can't make it home without charging really made me feel awkward," she says. "You see, one single charging location can mean the world to some people," Jen adds. Read the whole article at Teslarati. Tesla once had considered creating mobile range extender trailers for the Model S. Elon Musk touched upon the abandoned idea during his visit to Paris. While Tesla ultimately dismissed the concept, Nomadic Power has taken the opportunity to hitch their product onto the Tesla brand. "We are delighted, that Tesla Motors' CEO Elon Musk is thinking about a concept like ours for even more extending the range of the Tesla models," says Nomadic Power's CEO Manfred Baumgaertner. He adds, "This confirms our approach to build a long distance mobility provider for all electric vehicles on the market." If you say so, Baumgaertner. Read more from International Business Times, and in the press release below. Renault is giving its EV batteries a second life through Connected Energy's E-STOR. When the batteries have degraded to the point that they're no longer suitable for use on the road, they still have a significant capacity that can be used for other purposes. Still useful for stationary storage, they can be used to support charging sites in order to allow for faster charging. The stationary batteries can charge slowly at the site, but then offer up the juice in a hurry when it's needed for a vehicle. Read more from Renault.