Optimal Control System Performance for an A-C Electric Vehicular Drive 660135
A unique a-c electric drive concept utilizing cycloconverter type frequency changers to operate squirrel-cage induction motors at controlled slip makes practical a brush-less wheel drive system requiring low control power. The system control flexibility thus achieved has been incorporated in an automatic system for a 6 × 6 a-c electric individual wheel drive vehicle. This control system enhances mobility and control of vehicles, provides optimum engine economy and power train efficiency for any horsepower, and completely eliminates mechanical coupling between prime mover and individual wheels. Precise stepless control is exerted over vehicle speed, acceleration, braking, and wheel slippage.
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