Fluid-pressure and analogous brake systems – Speed-controlled – With yaw control
Patent
1998-01-07
2000-07-25
Graham, Matthew C.
Fluid-pressure and analogous brake systems
Speed-controlled
With yaw control
303140, 303148, 303150, B60T 858
Patent
active
060928824
ABSTRACT:
A braking force control system and method of a vehicle comprises a steering angle detecting section for detecting a steering angle, a vehicle speed detecting section for detecting a vehicle speed, an actual yaw rate detecting section for detecting an actual yaw rate, a target yaw rate calculating section for calculating a target yaw rate, a target yaw rate restricting section for restricting the target yaw rate to an upper limit value, a yaw rate deviation calculating section for calculating a yaw rate deviation of the actual yaw rate and the target yaw rate, a target braking force calculating section for calculating a target braking force, a braking wheel determining section for determining a braking wheel, an output judging section for judging whether the yaw rate deviation is in a control zone or in a noncontrol zone. When the output judging section judges that the yaw rate deviation is in the control zone, a brake signal outputting section sends a signal to a brake drive apparatus so as to apply the target braking force to the braking wheel and when the output judging section judges that the yaw rate deviation is in the noncontrol zone, the brake signal outputting section sends a brake signal to the brake drive apparatus so as to apply no brake, whereby the vehicle can make a smooth and stable turn even in a case where a vehicle driver turns a steering wheel excessively during cornering.
REFERENCES:
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patent: 5344224 (1994-09-01), Yasuno
patent: 5428532 (1995-06-01), Yasuno
patent: 5700073 (1997-12-01), Hiwatashi et al.
patent: 5735584 (1998-04-01), Eckert
patent: 5882092 (1999-03-01), Koibuchi
Farber Martin A.
Fuji Jukogyo Kabushiki Kaisha
Graham Matthew C.
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