Fluid-pressure and analogous brake systems – Speed-controlled – With yaw control
Patent
1996-07-23
1997-12-23
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
With yaw control
303140, 303142, 303148, 180197, B60T 858
Patent
active
057000735
ABSTRACT:
A braking force control system and method of a vehicle comprises an estimated yaw rate calculating section for calculating an estimated yaw rate on a road surface having low friction coefficient, a target yaw rate differential calculating section for calculating a target yaw rate differential, an estimated yaw rate differential calculating section for calculating an estimated yaw rate differential, a yaw rate differential deviation calculating section for calculating a deviation of the both differentials, a first target braking force calculating section for calculating a first target braking force, a yaw rate deviation calculating section for calculating a deviation of an actual yaw rate and a target yaw rate, a second target braking force calculating section for calculating a second target braking force, a final target braking force calculating section for calculating a final target braking force based on the first and second target braking forces. When an output judging section judges that the deviation of the actual yaw rate and the target yaw rate is in the control zone, a brake signal is outputted to a brake drive section so as to apply the final target braking force to a braking wheel selected in a braking wheel determining section, whereby the vehicle can make a smooth and stable turn without causing spins or drift-outs during cornerings.
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Hiwatashi Yutaka
Matsuno Koji
Matsuura Munenori
Takahashi Akira
Butler Douglas C.
Fuji Jukogyo Kabushiki Kaisha
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