Traction control device for vehicle

Details Traction control device for vehicle Traction control device for vehicle

1995-03-10

1996-10-15

Graham, Matthew C.

Fluid-pressure and analogous brake systems

Speed-controlled

Torque sensing

303139, B60T 800

Patent

active

055647960

ABSTRACT:
A traction control device for a vehicle includes a control unit for operating wheel brakes for left and right driven wheels connected to a power source through a differential, when an excessively slipping tendency is produced in one or both of the driven wheels. In the traction control, an input torque supplied from the power source to the differential is detected by an input torque detecting device. A limit driving torque is determined based on a detection value detected by the input torque detecting device at the time when it is detected by a slip detecting device that only one of the driven wheels is fallen into the excessively slipping tendency. A braking torque to be applied to the one driven wheel is determined based on a value resulting from the subtraction of the limit driving torque from a current detection value detected by the input torque detecting device. Consequently, it is possible to reduce the control system into a relatively small size and to improve the control responsiveness and the hysteresis characteristic.

REFERENCES:
patent: 4344139 (1982-08-01), Miller et al.
patent: 4976500 (1990-12-01), Cogswell, II et al.
patent: 5205622 (1993-04-01), Gee

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