| 摘要 |
A vehicle propulsion system combines an electric motor-generator and battery with a flywheel as regenerative power sources. A planetary differential gear train couples together the shafts from the flywheel and the motor-generator. A controller connected between the battery and the motor-generator serves to maintain the current level to or from the battery with a range which develops optimum efficiency of battery energy utilization while causing the flywheel to absorb the relatively large peaks in battery power requirements. In one embodiment, the controller is made up of a transistorized chopper, a free-wheeling diode, a regenerative diode, a current sensor, and a switch to change the controller between the motor and generator modes of operation. The motor-generator is a separately excited, DC machine.
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