Your future GM vehicle will likely have a Stop-Start system
General Motors is planning to expand the use of start-stop systems across most of their range by 2020 in an effort to improve fleetwide fuel economy. The plan will see at one powertrain combination offered in a vehicle to have this system. Stop-start systems work by turning off the engine when the vehicle isn't moving. When the driver removes his/her foot from the brake, the engine will kick back on.
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This move comes as the EPA will start handing out credits towards compliance with corporate average fuel economy standards to automakers who use this system in their vehicles next year.
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"Everyone will end up adding start-stop. Now there's a benefit in the EPA cycle, which there wasn't a few years ago. GM's new nine- and 10-speed automatic transmissions have been engineered from the beginning to incorporate start-stop. That will make it much easier and much smoother. That's what's been the holdup. First it was a regulatory issue, then it was a hardware issue," said AutoPacific analyst Dave Sullivan.
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GM spokesman Tom Read tells Automotive News that vehicles equipped with the stop-start system will use absorbent glass mat batteries (AGM) and tandem solenoid starters to enable faster and smoother restarts.
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Source: Automotive News (Subscription Required)
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