Electric Vehicle for Nickel Zinc Battery Testing 830109

This paper describes the vehicle and propulsion system mechanization selected by General Motors to assess the progress being made in the area of Nickel Zinc battery development. Towards this end a fleet of 12 road vehicles have been fabricated and have contributed significantly to the accumulation of 200,000 test miles on Nickel Zinc powered electric vehicles.
The drivetrain selected for these vehicles includes a separately excited DC motor, an SCR armature chopper, a transistorized bi- directional field chopper and a low level electronic control system based on General Motor's Custom Microprocessor chip set.
This fleet of test vehicles does not rep resent production intent but does possess many of the attributes thought to be necessary for a commercially viable Electric Vehicle.
Although GM's Electric Car development activities have been reduced in recent months, GM is maintaining a level of battery development that will provide the Corporation with sufficient flexibility to respond to future energy supply uncertainties. Consequently, these battery test vehicles will continue to play an important role in battery development and test.


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