Control system for internal combustion engines for vehicles

Details Control system for internal combustion engines for vehicles Control system for internal combustion engines for vehicles

1997-04-28

1999-08-31

Louis-Jacques, Jacques H.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Transmission control

701 53, 701101, 477109, G06G 770

Patent

active

059447656

ABSTRACT:
A control system for an internal combustion engine for a vehicle operable during gear shifting of the automatic transmission effected when the accelerator pedal of the vehicle has been depressed, for changing the output torque of the engine to reduce a shock generated during the gear shifting. Required output torque of the engine for performing the gear shifting is calculated based on a gear shifting duration from the time the gear shifting is started to the time hydraulic pressure for operating a clutch of a lower-speed position of the clutches to be selected by the gear shifting rises. A torque correction amount is calculated based on the difference between the calculated required output torque of the engine and the actual output torque of the engine assumed during the gear shifting. When the gear shifting is started, the output torque of the engine is increased based on the calculated torque correction amount.

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