Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1992-06-25
1994-01-25
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
180197, 3644241, 36442602, 36442603, 303 93, 303103, B60T 832, B60T 858
Patent
active
052810089
ABSTRACT:
A traction control system for a motor vehicle having driving wheels and driven wheels. The traction control system comprises sensors for detecting a speed of each of the driving wheels of the vehicle; sensors for detecting a speed of each of the driven wheels of the vehicle; and a mechanism for calculating a slip value of the driving wheels based on the detected speeds of the driving and driven wheels. The traction control system also includes an engine output control mechanism for controlling each of the driving wheels so that the slip value of each of the driving wheels is controlled to become equal to a predetermined first desired slip value when the slip value of each driving wheel is greater than the predetermined first desired slip value; and a brake force control mechanism for controlling each of the driving wheels so that the slip value of each of the driving wheels is controlled to become equal to a predetermined second desired slip value when the slip value of each driving wheel is greater than the predetermined second desired slip value. The control system also includes an engine control restriction mechanism for restricting the engine output control mechanism while the braking control is carried out.
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Kawamura Makoto
Nobumoto Kazutoshi
Okazaki Haruki
Tsuyama Toshiaki
Butler Douglas C.
Mazda Motor Corporation
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