Electricity: motive power systems – Battery-fed motor systems
Patent
1992-12-21
1993-11-23
Ro, Bentsu
Electricity: motive power systems
Battery-fed motor systems
180 654, 290 14, 290 16, B60L 1112
Patent
active
052647641
ABSTRACT:
A method for controlling the operation of a range extender of a hybrid electric vehicle in which a requested power signal P.sub.req is generated in response to the state-of-charge of the battery system being less than a predetermined intermediate value and the energy being consumed by the electric drive system being greater than the electric energy being delivered by the range extender. The requested power signal having a value approximately equal to the average power consumed by the electric drive system in a preceding time period. The method is responsive to the motor being in a energy regenerative state to decrease the power being generated by the range extender so that all the energy being generated by the motor is used to charge the battery. The method is also responsive to the engine temperature exceeding a predetermined temperature to reduce the power being delivered by the range extender. The power delivered by the range extender in response to the requested power signal is applied to the electric drive system and battery system to maintain the state-of-charge of the battery system is maintained within a predetermined range.
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Abolins Peter
Ford Motor Company
May Roger L.
Ro Bentsu
LandOfFree
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