Anti-skid braking system control method

Details Anti-skid braking system control method Anti-skid braking system control method

1987-12-28

1989-08-08

Chin, Gary

Boots, shoes, and leggings

303 97, 303 99, 180197, B60T 832

Patent

active

048559164

ABSTRACT:
An anti-skid braking system control method determines the brake torque on a wheel of a road vehicle to prevent wheel lock-up while retaining braking force. The method utilizes a wheel slip-wheel acceleration phase plane (400), which is divided into at least three and preferably four wedge-shaped sectors (401, 402, 403, 404) meeting at a central point (440), each sector representing one of three available brake control actions (A, H, R) to be taken. The vehicle's wheel slip and wheel acceleration are estimated, a representation of the phase plane is used to determine in which sector the slip/acceleration coordinate lies, and a control command is output to the system for effecting the desired control action in accordance with the sector determined. The control method is adaptive to vehicle speed.

REFERENCES:
patent: 4554990 (1985-11-01), Kamiya et al.
patent: 4701855 (1987-10-01), Fennel
patent: 4788644 (1988-11-01), Inagaki

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