Interrelated power delivery controls – including engine control – Transmission control – With brake control
Patent
1996-05-08
1997-12-02
Ta, Khoi Q.
Interrelated power delivery controls, including engine control
Transmission control
With brake control
477 71, 477114, 477901, B60K 4120
Patent
active
056929900
ABSTRACT:
An automatic transmission control apparatus has a vehicle speed detector, an accelerator pedal operation detector, a brake pedal operation detector, a clutch hydraulic servo that is neutral-controlled, a brake hydraulic servo that is hill holding-controlled, and a control device for controlling the fluid pressure supplied to the two servos. The control device selectively changes the start timing of the fluid pressure supply control. If it is determined that the vehicle is stopped and that the vehicle is not on an uphill, the control device causes a pressure reducing device and a pressure supplying device to simultaneously start reducing the fluid pressure supply to the clutch servo and supplying fluid pressure to the brake servo, respectively. If it is determined that the vehicle is on an uphill, the control device causes the pressure supplying device to start supplying fluid pressure to the brake servo and, after a predetermined time period, causes the pressure reducing device to start reducing the fluid pressure supply to the clutch servo.
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Iwata Akihito
Tsukamoto Kazumasa
Yamamoto Yoshihisa
Aisin Aw Co. Ltd.
Kwon Peter T.
Ta Khoi Q.
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