On-vehicle control apparatus

Details On-vehicle control apparatus On-vehicle control apparatus

1997-02-28

1998-07-14

Wright, Dirk

Interrelated power delivery controls, including engine control

Transmission control

Engine controlled by transmission

123400, F02D 902

Patent

active

057795932

ABSTRACT:
An on-vehicle control apparatus having a throttle valve in an intake passage of the engine is disclosed. The system for actuating the throttle valve includes electric and mechanical components. A electrical motor incorporated in the electric component actuates the throttle valve. An electronic control unit (ECU) controls the motor such that the opening of the throttle valve matches a target opening, which corresponds to a manipulation amount of a gas pedal. When there is an abnormality in the motor, if the gas pedal is manipulated by a predetermined amount or more, the mechanical component couples the gas pedal with the throttle valve, thereby actuating the throttle valve. When there is an abnormality in the motor, the ECU cuts fuel supply to some of the injectors. This allows the actual torque of the engine to be slightly lower than a computed engine torque that corresponds to the amount of a gas pedal manipulation.

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patent: 5447133 (1995-09-01), Kamio et al.
patent: 5681240 (1997-10-01), Sunada et al.

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