Fluid-pressure and analogous brake systems – Speed-controlled – Pressure reapply control
Patent
1999-08-26
2000-12-19
Mar, Michael
Fluid-pressure and analogous brake systems
Speed-controlled
Pressure reapply control
303139, B60T 866
Patent
active
061619078
ABSTRACT:
A brake control system determines when a wheel is unstable or stable during a braking condition. An unstable wheel is determined when the wheel speed is different from the estimated vehicle speed by greater than a fixed amount. When the wheel is determined to be unstable, an amount of brake pressure reduction is determined according to a proportional-plus-integral compensation. The proportional-plus-integral compensation is a function of the difference between the wheel speed and the estimated vehicle speed, as well as a wheel deceleration value. When the wheel is determined to be stable, brake pressure is applied according to an exponential rate. A hold mode is entered when the wheel is determined to be no longer decelerating during a dump cycle.
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patent: 4783127 (1988-11-01), Kade et al.
patent: 5265946 (1993-11-01), Bader
patent: 5492394 (1996-02-01), Kusano et al.
patent: 5618088 (1997-04-01), Roll et al.
Luckevich Mark S.
Milot Danny R.
Kelsey-Hayes Company
Kramer Devon
Mar Michael
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