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公开(公告)号:US5499867A
公开(公告)日:1996-03-19
申请号:US369826
申请日:1995-01-06
IPC分类号: B60T8/34 , B60T8/1761 , B60T8/64 , B60T8/70 , B60T8/32
CPC分类号: B60T8/17616
摘要: In an anti-lock braking system in which pressure is reduced in pulses separated by pressure maintenance phases, the duration of the first maintenance phase is dependent upon the vehicle deceleration and the wheel slip. A second pressure reduction pulse is triggered only when the wheel acceleration is less than a predetermined low threshold.
摘要翻译: 在通过压力维持阶段分离的脉冲压力降低的防抱死制动系统中,第一维护阶段的持续时间取决于车辆减速度和车轮滑移。 仅当车轮加速度小于预定的低阈值时才触发第二减压脉冲。
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公开(公告)号:US5631836A
公开(公告)日:1997-05-20
申请号:US346100
申请日:1994-11-29
CPC分类号: B60T8/172 , B60T2240/07 , B60T2240/08
摘要: Wheel speeds on each side of the vehicle are added, and the sums are subtracted to form a difference VXU which is time filtered to produce a filtered difference VXG. As long as VXU does not exceed VXG by more than a speed dependent threshold, a signal indicating straight line travel is produced. This signal can be cancelled when VXG exceeds a vehicle dependent threshold and is also blocked when the vehicle speed falls below a minimum, when the ABS is operating, or when the vehicle is decelerating. The signal indicating straight line travel accounts for tire tolerance and can be used to control vehicle dynamics, for example by preventing an increase in brake pressure or engine braking when the vehicle is travelling in a curve.
摘要翻译: 添加车辆每一侧的车轮速度,并且减去总和以形成时间滤波以产生滤波差VXG的差VXU。 只要VXU不超过VXG超过速度相关阈值,就产生表示直线行进的信号。 当VXG超过车辆相关阈值时,可以取消该信号,并且当车辆速度低于最小值时,ABS运行时或当车辆正在减速时,该信号也被阻止。 表示直线行驶的信号表示轮胎公差,并且可以用于控制车辆动力学,例如通过防止当车辆行驶在曲线中时制动压力或发动机制动的增加。
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公开(公告)号:US5415469A
公开(公告)日:1995-05-16
申请号:US256561
申请日:1994-07-14
IPC分类号: B60T8/26 , B60T8/1764 , B60T8/32 , B60T8/66
CPC分类号: B60T8/1764
摘要: A vehicle brake system is described in which a lower brake pressure is fed in at the rear axle compared with the brake pressure of the front wheels. For the purpose of feeding in this brake pressure, the difference VD between the fastest front wheel speed and the slowest rear wheel speed is formed and compared with a threshold value which depends on the vehicle deceleration. An increase in pressure is undertaken until the threshold value is reached. The threshold value is, furthermore, larger in the case of travel in a straight line than it is in the case of travel in a curve.
摘要翻译: PCT No.PCT / DE93 / 01130 Sec。 371日期:1994年7月14日 102(e)日期1994年7月14日PCT提交1993年11月27日PCT公布。 第WO94 / 13517号公报 日期:1994年6月23日。描述了一种车辆制动系统,其中与前轮的制动压力相比,后轴处于较低的制动压力。 为了进给该制动压力,形成最快的前轮速度和最慢的后轮速度之间的差值VD,并将其与取决于车辆减速度的阈值进行比较。 直到达到阈值才能进行压力的增加。 此外,在直线行驶的情况下,与在曲线中行驶的情况相比,阈值更大。
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