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公开(公告)号：US4811232A
公开(公告)日：1989-03-07
申请号：US36997
申请日：1987-04-10
申请人： Akira Hoashi , Hideo Akima , Takao Maki , Isao Yamaki
发明人： Akira Hoashi , Hideo Akima , Takao Maki , Isao Yamaki
IPC分类号： B60T8/171 , B60T8/172 , B60T8/1761 , B60T8/32 , B60T8/58 , B60T8/60 , B60T8/66 , B60T8/72 , G01P3/42 , G01P3/489
摘要： An apparatus for measuring the wheel speed for an anti-skid control system of a motor vehicle, comprising a sensor for generating a pulse signal, the cycle of which corresponds to the rotational speed of the wheel. The wheel speed signal is provided in every control cycle having a constant time. If the wheel speed is not provided because the rotational speed of the wheel is low, the anti-skid control is performed in accordance with a compensated wheel speed calculated on the basis of the wheel speed measured immediately beforehand.
摘要翻译： 一种用于测量机动车辆的防滑控制系统的车轮速度的装置，包括用于产生脉冲信号的传感器，其周期对应于车轮的转速。 在每个具有恒定时间的控制周期中提供车轮速度信号。 如果由于车轮的转速低而没有提供车轮速度，则根据基于立即预先测量的车轮速度计算的补偿车轮速度来执行防滑控制。
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公开(公告)号：US4762375A
公开(公告)日：1988-08-09
申请号：US947045
申请日：1986-12-29
申请人： Takao Maki , Isao Yamaki , Hideo Akima , Akira Hoashi
发明人： Takao Maki , Isao Yamaki , Hideo Akima , Akira Hoashi
IPC分类号： B60T8/172 , B60T8/1761 , B60T8/1764 , B60T8/66 , B60T8/70 , B60T8/72 , B60T8/82 , B60T8/60 , B60T8/68
CPC分类号： B60T8/17616
摘要： An anti-skid control system for a motor vehicle in which, when a wheel speed to be controlled and being decreased through buildup of brake pressure becomes equal to a reference speed, this equality is judged as a fulfillment of a brake pressure reduction starting condition, and thus reduction of the brake pressure is started. The highest wheel speed is detected and a computed vehicle speed is set up based on the highest wheel speed by having the increase and decrease of the highest wheel speed limited to a predetermined range. The computed vehicle speed and the wheel speed to be controlled are compared; and when the comparison indicates that the wheel speed to be controlled is equal to or higher than the computed vehicle speed, no reduction of the brake pressure is started irrespective of whether the brake pressure reduction starting condition is fulfilled.
摘要翻译： 一种用于机动车辆的防滑控制系统，其中当通过制动压力的累积来控制和减小的车轮速度等于参考速度时，将该等同性判断为制动压力降低起始条件的实现， 从而开始制动压力的降低。 检测到最高的车轮速度，并且通过将最高车轮速度的增加和减小限制在预定范围，基于最高车轮速度来建立计算车辆速度。 比较计算出的车速和要控制的车轮速度; 并且当比较表示要控制的车轮速度等于或高于计算车速时，不管制动压力降低开始条件是否满足，都不会降低制动压力。
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公开(公告)号：US4825371A
公开(公告)日：1989-04-25
申请号：US28544
申请日：1987-03-20
申请人： Akira Hoashi , Hideo Akima , Katsuya Miyake , Isao Yamaki
发明人： Akira Hoashi , Hideo Akima , Katsuya Miyake , Isao Yamaki
CPC分类号： B60T8/172 , B60T8/17636 , B60T8/5006 , B60T8/58 , Y10S303/05
摘要： An anti-skid control system for a motor vehicle, includes a brake fluid pressure buildup-control mode and a brake fluid pressure reduction mode, each of which occur cyclically. In each buildup-control mode, a control valve is repetitively opened and closed so that brake fluid pressure buildup and holding operations are performed alternately. The time period of each buildup-control mode is from a high peak of a wheel speed signal until a point of intersection between a reference velocity V.sub.W0 and the wheel speed V.sub.W. The reference velocity V.sub.W0 has an initial point Q positioned under the high peak V.sub.HP of the wheel speed V.sub.W by a velocity value .DELTA.V and extending straight at a gradient .theta.. The speed value .DELTA.V, the gradient .theta., and an initial pressure buildup time T.sub.P, in each building-control mode, are determined in accordance with the wheel acceleration in the preceding wheel acceleration, i.e., coefficient of friction of the road surface.
摘要翻译： 一种用于机动车辆的防滑控制系统包括循环地发生的制动液压增压控制模式和制动液压降模式。 在每个堆积控制模式中，重复地打开和关闭控制阀，以便交替执行制动液压力的积聚和保持操作。 每个累积控制模式的时间段是从车轮速度信号的高峰值到参考速度VW0和车轮速度VW之间的交点。 参考速度VW0具有位于车轮速度VW的高峰值VHP之下的速度值DELTA V并且以梯度θ直线延伸的初始点Q。 根据前一轮加速度中的车轮加速度，即路面的摩擦系数来确定每个建筑物控制模式中的速度值DELTA V，梯度θ和初始压力累积时间TP。
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公开(公告)号：US4870582A
公开(公告)日：1989-09-26
申请号：US28674
申请日：1987-03-20
申请人： Akira Hoashi , Hideo Akima , Katsuya Miyake , Isao Yamaki
发明人： Akira Hoashi , Hideo Akima , Katsuya Miyake , Isao Yamaki
摘要： An anti-skid brake control system for a motor vehicle comprises: a wheel speed sensor which is provided for each wheel of the vehicle and generates a pulse signal having a pulse cycle which corresponds to a revolutional speed of each wheel; a pulse cycle measuring circuit for detecting the cycle of the pulses of the pulse signal from each wheel speed sensor; and, a discriminator for discriminating an actual acceleration or deceleration state. The actual acceleration or deceleration state is discriminated in accordance with whether or not the period of the acceleration or deceleration state is longer than a predetermined time. The acceleration or deceleration state is calculated from the wheel speed data detected by the pulse cycle measuring circuit, and the system is controlled on the basis of the result of the discrimination by the discriminator.
摘要翻译： 一种用于机动车辆的防滑制动控制系统包括：为车辆的每个车轮设置的车轮速度传感器，并产生具有对应于每个车轮的转速的脉冲周期的脉冲信号; 脉冲周期测量电路，用于检测来自每个车轮速度传感器的脉冲信号脉冲的周期; 以及用于鉴别实际加速或减速状态的鉴别器。 根据加速或减速状态的周期是否长于预定时间来判别实际的加速或减速状态。 根据由脉冲周期测量电路检测的车轮速度数据计算加速或减速状态，并且基于鉴别器的鉴别结果来控制系统。
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公开(公告)号：US4741580A
公开(公告)日：1988-05-03
申请号：US890611
申请日：1986-07-30
申请人： Yuji Matsubara , Hiroshi Ikegami , Hideo Akima , Akira Hoashi , Katsuya Miyake , Isao Yamaki , Toshifumi Maehara
发明人： Yuji Matsubara , Hiroshi Ikegami , Hideo Akima , Akira Hoashi , Katsuya Miyake , Isao Yamaki , Toshifumi Maehara
IPC分类号： B60T8/1761 , B60T8/50 , B60T8/64 , B60T8/70 , B60T8/68
CPC分类号： B60T8/17616 , B60T8/5006
摘要： In an anti-skid control system for a motor vehicle, brake fluid pressure reduction-control mode and brake fluid pressure buildup-control mode occurs cyclically; in the reduction-control mode, reduction of the brake fluid pressure is started on the basis of detection of an abrupt drop in wheel speed which occurs when the wheel is braked; and in buildup-control mode, a valve is repetitively opened and closed so that brake fluid pressure buildup and holding operations are performed alternatley and repetitively, whereby the brake fluid pressure is caused to build up gradually. The length of time period for the first buildup operation in the buildup-control mode is determined on the basis of variation in the wheel speed occurring between a low peak point and a high peak point; and the length of time period for at least one of each pressure holding operation and each of the second and succeeding pressure buildup operations in the abovementioned buildup-control mode, is determined on the basis of variation in the wheel speed occurring immediately before the pressure holding or buildup operation is started.
摘要翻译： 在机动车辆的防滑控制系统中，循环地发生制动液压降控制模式和制动液压升压控制模式; 在减速控制模式中，基于在车轮制动时发生的车轮速度的突然下降的检测开始制动液压力的降低; 并且在增压控制模式中，重复地打开和关闭阀，从而使制动液压力积累和保持操作交替地重复地进行，从而使制动液压力逐渐增大。 基于在低峰值点和高峰值点之间发生的车轮速度的变化来确定建立控制模式中的第一累积操作的时间长度; 并且基于在压力保持之前发生的车轮速度的变化来确定上述累积控制模式中的每个压力保持操作和第二次和后续压力累积操作中的至少一个的时间段的长度 或建立操作开始。
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公开(公告)号：US4774668A
公开(公告)日：1988-09-27
申请号：US947375
申请日：1986-12-29
申请人： Yuji Matsubara , Isao Yamaki , Hideo Akima , Akira Hoashi
发明人： Yuji Matsubara , Isao Yamaki , Hideo Akima , Akira Hoashi
CPC分类号： B60T8/17616 , B60T8/173 , B60T8/58 , Y10S303/05
摘要： An anti-skid control system for motor vehicles is provided wherein a computed vehicle speed is set up on the basis of respective wheel speeds of the motor vehicle; a reference speed which is lower than the computed vehicle speed by a predetermined amout and follows the computed vehicle speed with such a speed difference, is calculated on the basis of the computed vehicle speed; a high peak of the wheel speed is compared with the reference speed; when the high peak of the wheel speed is equal to or higher than the reference speed, the brake pressure is increased; and when the high peak of the wheel speed is lower than the reference speed, the brake pressure is reduced again.
摘要翻译： 提供一种用于机动车辆的防滑控制系统，其中基于机动车辆的相应车轮速度建立计算车速; 基于计算出的车辆速度来计算低于计算出的车速的基准速度，并且以这样的速度差跟随计算出的车速; 将车轮速度的高峰与参考速度进行比较; 当车轮速度的高峰值等于或高于基准速度时，制动压力增加; 并且当车轮速度的高峰值低于基准速度时，制动压力再次降低。
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公开(公告)号：US4773014A
公开(公告)日：1988-09-20
申请号：US946825
申请日：1986-12-29
申请人： Naoyuki Hagiya , Isao Yamaki , Hideo Akima , Akira Hoashi
发明人： Naoyuki Hagiya , Isao Yamaki , Hideo Akima , Akira Hoashi
IPC分类号： B60T8/1761 , B60T8/62 , B60T8/66 , B60T8/58
CPC分类号： B60T8/17616
摘要： An anti-skid control system for motor vehicles is disclosed wherein in case the wheel speed is equal to or lower than a minimum speed which is detectable by a microcomputer, the wheel speed is set at a predetermined threshold speed level between the minimum speed and zero, thereby preventing reduction of brake pressure from being started when the wheel is lower than the threshold speed. The anti-skid control system may also be designed such that a computed vehicle speed is set up which is approximate to the real vehicle speed; a reference speed is also set up on the basis of the computed vehicle speed in such a manner that it is lower by a predetermined amount than and follows the computed vehicle speed with such a speed difference; when the wheel speed becomes equal to or lower than a minimum speed which is detectable by a microcomputer, the wheel speed is set at a predetermined threshold speed level between the minimum speed and zero; and if a brake pressure reducing condition is prevailing at a point of time when the reference speed becomes equal to the threshold speed, then such a condition is released.
摘要翻译： 公开了一种用于机动车辆的防滑控制系统，其中在车轮速度等于或低于可由微型计算机检测到的最小速度的情况下，车轮速度被设定在最小速度和零之间的预定阈值速度水平 从而防止当车轮低于阈值速度时开始制动压力的降低。 防滑控制系统还可以被设计成使得计算出的车辆速度被设置为近似于实际车辆速度; 基于计算出的车辆速度，也以基于该速度差的方式将其设定为低于并且跟随计算出的车辆速度的预定量的参考速度; 当车轮速度等于或低于可由微型计算机检测到的最小速度时，车轮速度被设定在最小速度和零之间的预定阈值速度水平; 并且如果在基准速度变得等于阈值速度的时间点上制动减压条件存在时，则这种状态被解除。
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公开(公告)号：US4717209A
公开(公告)日：1988-01-05
申请号：US947188
申请日：1986-12-29
申请人： Naoyuki Hagiya , Yuji Matsubara , Katsuya Miyake , Hideo Akima , Akira Hoashi
发明人： Naoyuki Hagiya , Yuji Matsubara , Katsuya Miyake , Hideo Akima , Akira Hoashi
IPC分类号： B60T8/72 , B60T8/172 , B60T8/1761 , B60T8/1764 , B60T8/58 , B60T8/66 , B60T8/70 , B60T8/84 , B60T8/64 , B60T8/60
CPC分类号： B60T8/58 , B60T8/17616 , B60T8/1764
摘要： An anti-skid control system for motor vehicles is provided wherein the higher one of the lefthand and righthand rear wheels is selected as a first computed speed; the lower one of the above two wheel speeds is selected as a second computed speed; the lower one of the first computed speed and lefthand front wheel speed is selected as a third computed speed; the lower one of the first computed speed and righthand front wheel speed is selected as a fourth computed speed; and a reference speed is set up on the basis of the first computed speed in such a manner that it is lower than the first computed speed by a predetermined amount and follows the first computed speed with such a speed difference. Reduction of brake pressure which has been increased, is started on the basis of the third or fourth computed speed; and in the case where the second computed speed being decelerated, goes below the reference speed, the reduction of the brake hydraulic pressure is stopped at time when the second computed speed which is now being increased as the result of the brake pressure reduction goes above the reference speed, and thereupon buildup of the brake pressure is started.
摘要翻译： 提供一种用于机动车辆的防滑控制系统，其中左后轮和右后轮中较高的一个被选择为第一计算速度; 选择上述两个车轮速度中的较低的一个作为第二计算速度; 第一计算速度和左前轮速度中的较低的一个被选择为第三计算速度; 选择第一计算速度和右前轮速度中较低的一个作为第四计算速度; 并且基于第一计算速度，以低于第一计算速度预定量并且以这样的速度差跟随第一计算速度的方式建立参考速度。 已经增加的制动压力的降低是基于第三或第四计算速度开始的; 并且在第二计算速度减速的情况下，低于基准速度时，当由于制动压力降低而正在增加的第二计算速度高于制动器压力降低时，制动液压的降低停止 参考速度，从而开始制动压力的积累。
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公开(公告)号：US4797825A
公开(公告)日：1989-01-10
申请号：US946824
申请日：1986-12-29
申请人： Haruki Shimanuki , Katsuya Miyake , Hideo Akima , Akira Hoashi
发明人： Haruki Shimanuki , Katsuya Miyake , Hideo Akima , Akira Hoashi
IPC分类号： B60T8/172 , B60T8/1761 , B60T8/1764 , B60T8/58 , B60T8/66 , B60T8/70 , B60T8/72 , B60T8/84
CPC分类号： B60T8/58 , B60T8/17616 , Y10S303/05
摘要： An anti-skid control system for motor vehicles is provided wherein when the time period from when the wheel velocity being decreased reaches a second reference velocity to a low peak of the wheel velocity at which the reduction of the brake pressure is to be stopped, is longer than a predetermined time period, the reduction of the brake pressure is continued until the wheel velocity is increased up to a first reference velocity which is higher than the second reference velocity. In this way, even if the wheel velocity drops sharply because the coefficient of friction of the road surface suddenly changes from high to low, the wheel velocity recovers so that the wheels of the motor vehicle are prevented from locking early.
摘要翻译： 提供一种用于机动车辆的防滑控制系统，其中当从减速的车轮速度到达第二参考速度到要停止制动压力降低的车轮速度的低峰值的时间段为 长于预定时间段，持续制动压力的降低，直到车轮速度增加到比第二参考速度高的第一参考速度。 以这种方式，即使由于路面的摩擦系数突然从高变低，车轮速度急剧下降，车轮速度恢复，从而防止机动车辆的车轮早期锁定。
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公开(公告)号：US4773714A
公开(公告)日：1988-09-27
申请号：US947189
申请日：1986-12-29
申请人： Haruki Shimanuki , Katsuya Miyake , Hideo Akima , Akira Hoashi
发明人： Haruki Shimanuki , Katsuya Miyake , Hideo Akima , Akira Hoashi
CPC分类号： B60T8/17616 , B60T8/58
摘要： An anti-skid control system for motor vehicles is provided wherein a computed wheel speed Vv is set up on the basis of the highest one of the wheel speeds of the motor vehicle; a first reference speed VT1 and a second reference speed VT2 are set up which are lower than and follow the computed vehicle speed Vv either with a first and second predetermined speed difference respectively or with a first and a second predetermined ratio respectively, the first reference speed VT1 being higher than the second reference speed VT2 (VT1>VT2); in the case where the wheel speed continues decreasing with a deceleration lower than a predetermined threshold level of deceleration, reduction of brake pressure is started at a point of time when a predetermined time period T1 elapsed from a point of time when the wheel speed reached the level of the second reference speed VT2; and the reduction of the brake pressure is stopped at a point of time when the wheel speed was increased up to the level of the first reference speed VT1 as a result of the reduction of the brake pressure.
摘要翻译： 提供了一种用于机动车辆的防滑控制系统，其中基于机动车辆的最高车轮速度来建立计算出的车轮速度Vv; 第一参考速度VT1和第二参考速度VT2被设置为分别地以第一和第二预定速度差或第一和第二预定比率分别低于并跟随计算出的车速Vv，第一参考速度 VT1高于第二参考速度VT2（VT1> VT2）; 在车轮速度以比预定的减速度低的减速度减速的情况下，在从车轮速度到达时刻的时间点开始经过规定时间T1的时刻开始制动压力的降低 第二参考速度级别VT2; 并且由于制动压力的降低，在车轮速度增加到第一基准速度VT1的水平的时间点停止制动压力的降低。
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