| 摘要 |
A method of charging a primary energy storage device in a vehicle including a secondary energy storage device and an engine coupled to a combined starter/alternator. The method comprises the steps of operating the starter/alternator as a generator at approximately a peak efficiency value, and electrically connecting the starter/alternator and the secondary energy storage device for a first predetermined period of time such that the starter/alternator charges the secondary energy storage device. Once the secondary energy storage device reaches a desired charge value, the starter/alternator and the secondary energy storage device are disconnected. The method also electrically connects the primary and secondary energy storage devices such that the secondary energy storage device charges the primary energy storage device. This continues until the charge on the secondary energy storage device reaches a minimum charge value, at which time, the starter/alternator is again operated at a peak efficiency value and connected to the secondary energy storage device. In this way, the starter/alternator pulse-charges the secondary energy storage device which, in turn, maintains the desired charge on the primary energy storage device.
|
