Browse Publications Technical Papers 2014-01-1792
2014-04-01

Spark EV Propulsion System Integration 2014-01-1792

The General Motors (GM) Chevrolet Spark EV propulsion system builds upon the knowledge and experience gained from development of GM's Volt advanced propulsion system and the Chevy Spark Internal Combustion Engine (ICE) global vehicle architecture. The reuse of the modified Volt propulsion and charging systems and evolution of an existing vehicle architecture were key enablers to bring the Spark EV to market. The Spark vehicle architecture was converted from a traditional ICE to a functional Electric Vehicle (EV). Key elements of the EV include the first GM designed and built permanent magnet motor, a single speed coaxial transmission and liquid cooled power electronics and high voltage (HV) battery. The vehicle architecture modifications allowed space for a high voltage battery and propulsion system. The focus on improved aerodynamics, 12 volt loads, chassis and system efficiencies enable an efficient and well integrated package, while maintaining the available power to make this vehicle sporty and fun to drive.

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