System for controlling a clutch for a motor vehicle

Details System for controlling a clutch for a motor vehicle System for controlling a clutch for a motor vehicle

1987-04-28

1989-02-21

Braun, Leslie A.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 0096, 192 215, 192103R, B60K 4102

Patent

active

048057517

ABSTRACT:
A system has a start mode in which clutch torque of the clutch increases with increase of speed of an engine of the motor vehicle, a lock-up engagement mode in which the clutch torque is increased, and a drag mode in which the clutch torque is reduced to produce a drag torque, one of the modes being selected in accordance with depression of the accelerator pedal and speed of the vehicle. When a vehicle speed detector does not produce a vehicle speed signal for a predetermined period in the start mode at engine speed higher than a predetermined speed, a fail-safe signal is produced. In response to the fail-safe signal, the system operates to keep clutch torque.

REFERENCES:
patent: 4449620 (1984-05-01), Sakakiyama

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