Control system for automatic transmission

Details Control system for automatic transmission Control system for automatic transmission

1996-02-26

1997-09-30

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Transmission control

Engine controlled by transmission

477110, B60K 4104

Patent

active

056721382

ABSTRACT:
A control system serves for surely preventing occurrence of a shift shock due to engagement of a one-way clutch with an automatic transmission in non-shift condition, and comprises a disengagement detecter for detecting disengagement of the one-way clutch; a power-on detecter for detecting change in an operation of the engine from driven mode to drive mode; a throttle opening detecter for detecting a throttle opening of the engine; a throttle opening estimater for estimating a second throttle opening when a predetermined time has elapsed from the time at which the operation of the engine is changed from driven mode to drive mode, on the basis of a first throttle opening detected when the operation of the engine is changed from driven mode to drive mode; and a torque down instructer for generating a torque down signal for reducing the output torque of the engine when the estimated second throttle opening is not less than a predetermined reference value.

REFERENCES:
patent: 4750598 (1988-06-01), Danno et al.
patent: 4823266 (1989-04-01), Baltusis et al.
patent: 5235877 (1993-08-01), Takahashi et al.
patent: 5470289 (1995-11-01), Pioch et al.

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