Brake control apparatus capable of traction control of vehicle d

Details Brake control apparatus capable of traction control of vehicle d Brake control apparatus capable of traction control of vehicle d

1997-06-20

1998-04-07

Young, Lee W.

Fluid-pressure and analogous brake systems

Speed-controlled

And traction control

303191, B60T 858

Patent

active

057355851

ABSTRACT:
A control apparatus in a brake system of a motor vehicle having a wheel brake cylinder for braking a vehicle drive wheel, the apparatus including a pump for pressurizing a fluid received from a low-pressure source, a valve device having a pressure increase state for permitting the fluid pressurized by the pump to be fed into the wheel brake cylinder, and a pressure decrease state for permitting the fluid to be discharged from the wheel brake cylinder into the low-pressure source, a traction control device for selectively placing the valve device in at least the pressure increase and decrease states, to control the pressure of the fluid in the wheel brake cylinder for thereby controlling the drive force of the drive wheel so as to control the amount of slip of the drive wheel, and a pump delivery saving device for reducing the delivery pressure of the pump in at least a portion of a time period during which the valve device is placed in a state other than the pressure increase state.

REFERENCES:
patent: 4878715 (1989-11-01), Toda
patent: 5176428 (1993-01-01), Lebret
patent: 5286101 (1994-02-01), Kakizaki
patent: 5368374 (1994-11-01), Fujimoto
patent: 5397174 (1995-03-01), Willmann
patent: 5441336 (1995-08-01), Takeuchi
patent: 5540488 (1996-07-01), Terazawa et al.

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