Method for controlling the braking pressure applied in an anti-l

Details Method for controlling the braking pressure applied in an anti-l Method for controlling the braking pressure applied in an anti-l

1994-11-09

1996-05-28

Graham, Matthew C.

Fluid-pressure and analogous brake systems

Speed-controlled

With yaw control

303149, B60T 866

Patent

active

055204481

ABSTRACT:
When, after a yawing moment control starts in an anti-lock braking system the rear wheel on the low-.mu. road surface is locked and the speed of that wheel decreases below the threshold value VT1, the brake hydraulic pressure to the wheel on the low-.mu. road surface is decreased. At the same time, the brake hydraulic pressure to the rear wheel on the high-.mu. road surface is also decreased at reduced rate relative to the decrease on the low-.mu. wheel. As a result, a higher braking force acts on the wheel on the high-.mu. road surface than on the wheel on the low-.mu. road surface. When the speed of the wheel on the low-.mu. road surface decreases below the threshold value VT1 and when the speed of the wheel on the high-.mu. road surface decreases below the pressure-decrease restriction removal threshold value VT, the brake hydraulic pressure to the wheel on the high-.mu. road surface is decreased to be nearly equal to that to the wheel on the low-.mu. road surface to prevent the wheels on the high and .mu. road surfaces from being locked.

REFERENCES:
patent: 4374421 (1983-02-01), Leiber
patent: 4893880 (1990-01-01), Arikawa
patent: 5188432 (1993-02-01), Schmitt et al.
patent: 5207483 (1993-05-01), Shimada et al.
patent: 5286098 (1994-02-01), Okubo

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