Anti-skid control system for motor vehicle
    1.
    发明授权
    Anti-skid control system for motor vehicle 失效
    机动车防滑控制系统

    公开(公告)号:US4825371A

    公开(公告)日:1989-04-25

    申请号:US28544

    申请日:1987-03-20

    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。

    Anti-skid brake control system
    2.
    发明授权
    Anti-skid brake control system 失效
    防滑制动控制系统

    公开(公告)号:US4870582A

    公开(公告)日:1989-09-26

    申请号:US28674

    申请日:1987-03-20

    CPC分类号: B60T8/58 B60T8/173 B60T8/72

    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。

    Anti-skid control system for motor vehicle
    3.
    发明授权
    Anti-skid control system for motor vehicle 失效
    机动车防滑控制系统

    公开(公告)号:US4741580A

    公开(公告)日:1988-05-03

    申请号:US890611

    申请日:1986-07-30

    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。

    Anti-skid control system for motor vehicles
    5.
    发明授权
    Anti-skid control system for motor vehicles 失效
    机动车防滑控制系统

    公开(公告)号:US4774668A

    公开(公告)日:1988-09-27

    申请号:US947375

    申请日:1986-12-29

    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。

    Anti-skid control system for motor vehicles
    6.
    发明授权
    Anti-skid control system for motor vehicles 失效
    机动车防滑控制系统

    公开(公告)号:US4773014A

    公开(公告)日:1988-09-20

    申请号:US946825

    申请日:1986-12-29

    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。

    Anti-skid control system for motor vehicles
    7.
    发明授权
    Anti-skid control system for motor vehicles 失效
    机动车防滑控制系统

    公开(公告)号:US4762375A

    公开(公告)日:1988-08-09

    申请号:US947045

    申请日:1986-12-29

    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。

    Process for treating sludge and system for the same
    8.
    发明授权
    Process for treating sludge and system for the same 失效
    污泥处理工艺及其制度

    公开(公告)号:US5624550A

    公开(公告)日:1997-04-29

    申请号:US513736

    申请日:1995-08-10

    IPC分类号: C02F1/56 C02F11/12 C02F11/14

    CPC分类号: C02F11/123 C02F1/56 C02F11/14

    摘要: Sludge which is supplied from an untreated sludge tank 3 and diluting water from a diluting water supply facility 14 is charged into a continuous kneading mixer 12 for diluting the sludge to make the specific weight of the sludge 1.15 to 1.35. The diluted sludge is supplied to a dehydrating machine 25 in accordance with the capacity of the used dehydrating machine 25. The diluted sludge is firstly added with an inorganic flocculating agent G and is mixed in a first blender 24A and is then added with a high molecular flocculating agent G2 and is mixed in a second blender 24B. Thereafter, the sludge is supplied to a belt press dehydrating machine 25 in which it is subjected to a dehydrating treatment.

    摘要翻译: 将从未处理的污泥槽3供给的污泥和来自稀释供水设备14的稀释水装入连续搅拌混合器12中,稀释污泥以使污泥的比重为1.15〜1.35。 将稀释的污泥根据使用的脱水机25的容量供给到脱水机25.稀释的污泥首先加入无机絮凝剂G,并在第一混合器24A中混合,然后加入高分子量 絮凝剂G2,并在第二混合器24B中混合。 此后,将污泥供给到进行脱水处理的带式压榨脱水机25中。

    Process for treating sludge and system for the same
    9.
    发明授权
    Process for treating sludge and system for the same 失效
    污泥处理工艺及其制度

    公开(公告)号:US5462672A

    公开(公告)日:1995-10-31

    申请号:US104850

    申请日:1993-08-12

    IPC分类号: C02F1/56 C02F11/12 C02F11/14

    CPC分类号: C02F11/123 C02F1/56 C02F11/14

    摘要: Sludge which is supplied from an untreated sludge tank 3 and diluting water from a diluting water supply facility 14 is charged into a continuous kneading mixer 12 for diluting the sludge to make the specific weight of the sludge 1.15 to 1.35. The diluted sludge is supplied to a dehydrating machine 25 in accordance with the capacity of the used dehydrating machine 25. The diluted sludge is firstly added with an inorganic flocculating agent G and is mixed in a first blender 24A and is then added with a high molecular flocculating agent G2 and is mixed in a second blender 24B. Thereafter, the sludge is supplied to a belt press dehydrating machine 25 in which it is subjected to a dehydrating treatment.

    摘要翻译: 将从未处理的污泥槽3供给的污泥和来自稀释供水设备14的稀释水装入连续搅拌混合器12中,稀释污泥以使污泥的比重为1.15〜1.35。 稀释的污泥根据使用的脱水机25的容量供给到脱水机25.稀释的污泥首先加入无机絮凝剂G,并在第一混合器24A中混合,然后加入高分子量 絮凝剂G2,并在第二混合器24B中混合。 此后,将污泥供给到进行脱水处理的带式压榨脱水机25中。