Anti-lock brake controlling apparatus

Details Anti-lock brake controlling apparatus Anti-lock brake controlling apparatus

1994-03-18

1996-04-30

Mitchell, David M.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

303150, 303171, B60T 800

Patent

active

055118623

ABSTRACT:
A pedal stroke detector detects the degree of depression of a brake pedal of a master cylinder to determine a road surface friction coefficient. A wheel speed detector monitors the speed of each wheel of a vehicle. A vehicle body speed calculator estimates the vehicle speed from the wheel speed of each wheel and the degree of depression of the brake pedal as detected by the pedal stroke detector. A lock symptom detecting mechanism detects a lock symptom from the estimated vehicle body speed and wheel speed. When a lock symptom is detected, a memory stores the degree of depression. Subsequent movement calculations are based on the larger of the degree of depression for the instant operational cycle and the degree of depression stored in memory.

REFERENCES:
patent: 5040852 (1991-08-01), Takata
patent: 5230549 (1993-07-01), Osada et al.
patent: 5242216 (1993-09-01), Miyawaki et al.
patent: 5249848 (1993-10-01), Matsuto et al.

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