#2015 CHEVY VOLT RANGE EXTENDER SERIES#
The range-extending engine is a 1.5-liter four-cylinder version of GM's new Ecotec series of three- and four-cylinder engines. Overall, low-speed acceleration is improved by 20 percent, according to the Volt technology team.Ģ016 Chevrolet Volt powertrain detail - motor and power electronics unit advance briefing, Oct 2014 It's also 100 pounds (45 kg) lighter than the existing system. GM declined to specify what metrics that referred to. The two-motor drive unit is more efficient than its predecessor, operating at 5 to 12 percent more efficiently. The smaller-output, or "A" motor, uses ferrite rather than rare earth metals, cutting overall rare-earth metal use from 3.2 kg to 1.2 kg, and the use of heavy rare earths (primarily dysprosium) from 282 grams to just 40 grams. The two motors use the same stator, but use different rotors. They also declined to provide the power output for either motor, though they said that the output ratios of the two were roughly proportional to those in the first Volt. Those include an all-electric mode and four different combinations of engine and electric motors/generators, but Chevy executives deferred questions about the specifics to a later date. MORE: 2016 Chevrolet Volt To Launch Next Year: What We Know So Far (to be updated soon) GM declined to elaborate on the modes in which the car can operate, but acknowledged that the 2016 Volt has five separate modes of operation-against four for the current car. The new system allows the Voltec system to power the vehicle with one or both motors, depending on power demand and overall efficiency. The major technical difference in the 2016 Volt will be that both motors can both power the car and act as generators, whereas in the previous generation, the car was powered by a 111-kW traction motor and the range-extending engine drove a 55-kW generator. 2016 Chevrolet Volt powertrain - electric motors detail advance briefing, Oct 2014
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