Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1992-03-09
1994-03-08
Kashnikow, Andres
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
36442602, B60T 824
Patent
active
052921840
ABSTRACT:
A wheel speed correction device for use in a vehicle corrects for the change of the circumferential wheel speed caused by variations in the wheel tire diameter, differences in the paths of the left and right wheels when the vehicle turns, and/or abnormal slipping between the tire and the road surface. The wheel speed correction device has a device for measuring a wheel rotation angular speed of each wheel, a device for correcting a coefficient representing a tire diameter and producing a corrected coefficient for each wheel, a device for calculating, from the measured angular speed, a diameter-corrected wheel speed using the corrected coefficients, a device for obtaining a turning correction amount from a difference between diameter-corrected wheel speeds of the left and right wheels, and a device for correcting the diameter-corrected wheel speed using the turning correction amount.
REFERENCES:
patent: 3691524 (1972-09-01), Frost et al.
patent: 4545623 (1985-10-01), Sato et al.
patent: 5060747 (1991-10-01), Eto
patent: 5179526 (1993-01-01), Zimmer et al.
Ballato Josie A.
Kashnikow Andres
Sumitomo Electric Industries Ltd.
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