Control system for electric vehicle

Details Control system for electric vehicle Control system for electric vehicle

1996-04-29

1998-08-18

Cabeca, John W.

Electricity: motive power systems

Battery-fed motor systems

318803, 318152, 318148, 320 27, 320 61, H02P 100

Patent

active

057962243

ABSTRACT:
An electronic control unit for controlling an inverter mounted between a main battery and a motor in an electric vehicle includes a feed-back control device which ensures that an actual electric power calculated from an electric current and a voltage inputted to the inverter is equalized to a target electric power calculated from the motor revolution-number, an accelerator opening degree and a shift position. If a circuit between the main battery and the motor is opened during regenerative operation, so that the charging of the main battery with a regenerative electric power cannot be performed and as a result, the voltage is increased to exceed a predetermined value, a regeneration prohibiting device prohibits the regenerative operation of the motor to prevent damage to the inverter due to a counter-electromotive voltage of the motor.

REFERENCES:
patent: 3845372 (1974-10-01), Ringland et al.
patent: 4335337 (1982-06-01), Okamatsu et al.
patent: 5440219 (1995-08-01), Wilkerson
patent: 5455491 (1995-10-01), Hajogos et al.
patent: 5583751 (1996-12-01), Nakazawa et al.

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