From a Conventional to a Hybrid Powertrain? The New General Motors / DaimlerChrysler Hybrid Standard

Authors

D. M. Hancock, Vice President – Engineering Operations, General Motors Powertrain, Pontiac, MI, USA; Dr.-Ing. L. Mikulic, Vice President Power Train Development – Mercedes Car Group – DaimlerChrysler AG, Stuttgart

Year

2005

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 595

Summary

To provide vehicle options that meet various customer fuel economy and performance requirements on a global basis, General Motors offers a broad portfolio of gas, diesel and hybrid powertrains. GM believes hybrid powertrain technologies can offer significant value when applied to appropriate vehicle driving cycles. GM currently offers two distinct hybrid powertrain systems. Hybrid powertrains can reduce engine losses and recoup vehicle losses. GM targeted large vehicles for initial hybrid applications because they represent the best opportunity to save significant quantities of fuel and provide a strong economic value to the customer. GM’s innovative two-mode hybrid system for large transit buses significantly improves fuel efficiency and performance and delivers lower noise and exhaust emissions. A scaled-down version of this system is planned for US light truck applications later in this decade. In addition, GM will soon offer value-oriented mild hybrid systems suitable for use in both cars and trucks.

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