GM’s Voltec Propulsion System – A Further Step in the Electrification of the Vehicle

Authors

Daniel M. Hancock, General Motors Corp., Pontiac, Michigan, U.S.A.

Year

2009

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 697

Summary

In late 2010, General Motors will begin volume production of the Chevrolet Volt, followed approximately one year later by the Opel/Vauxhall Ampera. These automobiles are extended-range electric vehicles (E-REVs) based on GM‘s Voltec electric propulsion system. They use a rechargeable onboard energy storage system – specifically an advanced lithium ion battery – and an electric traction motor to provide full-performance electric propulsion exclusively for up to 64 km driving range (based on Euro MVEG cycle. 40 mile range based on EPA city and highway cycle). The battery can be recharged by plugging into a standard European 220V (U.S. 120V or 240V) outlet or other level 1 and level 2 charging standards. The Voltec propulsion system also includes an onboard electric generator powered by a small internal combustion engine. The generator is engaged automatically to extend the vehicle‘s total operating range.

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