Traction control system for motor vehicles

Details Traction control system for motor vehicles Traction control system for motor vehicles

1989-04-21

1990-11-06

Marmor, Charles A.

Motor vehicles

With means for detecting wheel slip during vehicle...

36442601, 303 97, B62K 3100

Patent

active

049678663

ABSTRACT:
In a traction control system for motor vehicles, the design is made such that during traction control operation, detection is made as to whether both the left-hand and the right-hand driving wheel speed have become equal to or higher than a predetermined threshold value, and detection is also made as to whether one of the driving wheel speeds which is increasing and the other one of the driving wheel speeds which is decreasing, have crossed each other; when the results of such detections are both "YES", this is regarded as an indication that a hunting phenomenon is likely to occur, and in response thereto, buildup and reduction of the brake hydraulic pressure is restricted; during the restriction, detection is made as to whether both of the driving wheel speeds have become equal to or lower than the predetermined threshold value, the above-mentioned restriction is removed. In this way, occurrence of a hunting phenomenon is restrained so that the difference between the left-hand and right-hand driving wheel speeds is decreased, thus preventing occurrence of vehicle body vibration.

REFERENCES:
patent: 4643485 (1987-02-01), Leiber

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