Electricity: motive power systems – Generator-fed motor systems having generator control – Control of both the generator and the motor
Patent
1994-09-08
1996-08-27
Cabeca, John W.
Electricity: motive power systems
Generator-fed motor systems having generator control
Control of both the generator and the motor
318140, 361 52, 322 16, 180 653, H02D 520, B60K 100
Patent
active
055504450
ABSTRACT:
A generator controller and controlling method of a hybrid vehicle. A battery voltage is compared with a predetermined value and when the battery voltage is lower than the predetermined value as a result of the comparison, an state of charge of the battery is discriminated. In the case of an state of charge of at least 70%, a generator output is controlled on the basis of a motor output, and in the case of an state of charge of less than 70%, while the generator output is controlled to a relatively high value, the motor output is limited. When the state of charge is restored to more than 75%, the voltage is controlled depending on the motor output. In the case of at least the predetermined value of the battery voltage, an idle control of an engine is carried out. As a result, the state of charge of the battery can be ensured and overcharging of the battery can be prevented.
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Cabeca John W.
Toyota Jidosha & Kabushiki Kaisha
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