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    Antiskid control with surface friction compensation
    1.
    发明授权
    Antiskid control with surface friction compensation 失效
    具有表面摩擦补偿的防滑控制

    公开(公告)号：US4666218A

    公开(公告)日：1987-05-19

    申请号：US638717

    申请日：1984-08-08

    申请人： Syouichi Masaki ,  Kimio Tamura ,  Teruyoshi Wakao ,  Noriyuki Nakashima ,  Ken Asami ,  Kazunori Sakai

    发明人： Syouichi Masaki ,  Kimio Tamura ,  Teruyoshi Wakao ,  Noriyuki Nakashima ,  Ken Asami ,  Kazunori Sakai

    IPC分类号： B60T8/17 ,  B60T8/172 ,  B60T8/1761 ,  B60T8/1763 ,  B60T8/64 ,  B60T8/70 ,  B60T8/88

    CPC分类号： B60T8/885 ,  B60T8/17616 ,  B60T2270/415 ,  B60T2270/416

    摘要： In an antiskid control system for the hydraulic braking system of a wheeled vehicle, the rotational speed of a vehicle wheel and the acceleration of the wheel are detected and levels of road surface friction are determined on the basis of the wheel speed and acceleration to give a first indication that the road has a high value of friction or a second indication that the road has a low value of friction. The wheel speed and acceleration are analyzed to detect a down-pressure mode to decrease the fluid pressure of the braking system and an up-pressure mode to increase the pressure. In response to the presence of the first indication, the down-pressure mode is effected at a lower rate and then at a higher rate. In response to the occurrence of the second indication, the down-pressure mode is effected at the higher rate.

    摘要翻译： 在用于轮式车辆的液压制动系统的防滑控制系统中，检测车轮的转速和车轮的加速度，并且基于车轮速度和加速度来确定路面摩擦的水平，以给出 首先指示道路具有高摩擦值或第二指示道路具有低摩擦值。 分析车轮速度和加速度以检测降压模式以降低制动系统的流体压力和上压模式以增加压力。 响应于第一指示的存在，降压模式以较低的速率然后以较高的速率进行。 响应于第二指示的发生，下压模式以较高的速率进行。

    Antiskid control with wheel-speed difference compensation
    4.
    发明授权
    Antiskid control with wheel-speed difference compensation 失效
    防滑控制带轮速差补偿

    公开(公告)号：US4566737A

    公开(公告)日：1986-01-28

    申请号：US638720

    申请日：1984-08-08

    申请人： Syouichi Masaki ,  Kimio Tamura ,  Teruyoshi Wakao ,  Noriyuki Nakashima ,  Ken Asami ,  Kazunori Sakai

    发明人： Syouichi Masaki ,  Kimio Tamura ,  Teruyoshi Wakao ,  Noriyuki Nakashima ,  Ken Asami ,  Kazunori Sakai

    IPC分类号： B60T8/66 ,  B60T8/17 ,  B60T8/173 ,  B60T8/1761 ,  B60T8/62 ,  B60T8/68 ,  B60T8/70

    CPC分类号： B60T8/17616 ,  B60T2240/08

    摘要： In an antiskid control system, first and second wheel speed values are derived from pulse signals supplied from wheel speed sensors to indicate respectively the rotational speeds of first and second wheels of the vehicle. A trimming value is derived from the difference between the first and second wheel speed values and used as a multiplier by which the first wheel speed value is multiplied to compensate for the deviation of the speed of the first wheel with respect to the speed of the second wheel. The compensated first wheel speed value compared with a variable threshold that is a function of the speed of the vehicle to determine the down pressure timing.

    摘要翻译： 在防滑控制系统中，从车轮速度传感器提供的脉冲信号中得出第一和第二车轮速度值，分别指示车辆的第一和第二车轮的转速。 从第一和第二车轮速度值之间的差值得出修整值，并将其用作乘法器，通过该倍数乘以第一车轮速度值，以补偿第一车轮的速度相对于第二车轮速度的偏差 轮。 补偿的第一车轮速度值与作为确定下压定时的车辆速度的函数的可变阈值相比较。

    Antiskid control with surface roughness compensation
    5.
    发明授权
    Antiskid control with surface roughness compensation 失效
    具有表面粗糙度补偿的防滑控制

    公开(公告)号：US4672547A

    公开(公告)日：1987-06-09

    申请号：US632524

    申请日：1984-07-19

    申请人： Shouichi Masaki ,  Kimio Tamura ,  Noriyuki Nakashima ,  Teruyoshi Wakao ,  Ken Asami ,  Kazunori Sakai

    发明人： Shouichi Masaki ,  Kimio Tamura ,  Noriyuki Nakashima ,  Teruyoshi Wakao ,  Ken Asami ,  Kazunori Sakai

    IPC分类号： B60T8/173 ,  B60T8/1763 ,  B60T8/66 ,  B60T8/70 ,  B60T8/34

    CPC分类号： B60T8/17636 ,  B60T2210/14

    摘要： In an antiskid control system, the acceleration of a vehicle wheel is detected and compared with a predetermined value. A first count value is incremented in response to the detection of the wheel acceleration exceeding the predetermined value. When this first count value exceeds a reference count within a first preset period, the road is interpreted as having a rough surface and a second count value is similarly incremented in response to the detection of the wheel acceleration exceeding the predetermined count. If the second count value does not reach the reference count within a second preset period longer than the first preset period, the road is interpreted as having a smooth surface. The gradient of brake hydraulic pressure of the vehicle is controlled in response to the different interpretation of the road surface.

    摘要翻译： 在防滑控制系统中，检测车轮的加速度并将其与预定值进行比较。 响应于超过预定值的车轮加速度的检测，第一计数值增加。 当第一计数值在第一预设时段内超过参考计数时，道路被解释为具有粗糙表面，并且响应于超过预定计数的车轮加速度的检测，第二计数值类似地增加。 如果第二计数值在比第一预设周期长的第二预设周期内未达到参考计数，则道路被解释为具有平滑的表面。 响应于路面的不同解释来控制车辆的制动液压梯度。

    Wheel speed and acceleration detection immune to disturbance
    6.
    发明授权
    Wheel speed and acceleration detection immune to disturbance 失效
    车轮速度和加速度检测免受干扰

    公开(公告)号：US4670852A

    公开(公告)日：1987-06-02

    申请号：US632657

    申请日：1984-07-20

    申请人： Shouichi Masaki ,  Kimio Tamura ,  Noriyuki Nakashima ,  Teruyoshi Wakao ,  Ken Asami ,  Kazunori Sakai

    发明人： Shouichi Masaki ,  Kimio Tamura ,  Noriyuki Nakashima ,  Teruyoshi Wakao ,  Ken Asami ,  Kazunori Sakai

    IPC分类号： B60T8/173 ,  B60T8/66 ,  G01P3/489 ,  G01P11/00 ,  G01P15/00

    CPC分类号： G01P3/489 ,  B60T8/173 ,  B60T2210/14

    摘要： A pulse signal is generated by a wheel speed sensor with a frequency proportional to the speed of rotation of a vehicle wheel, the pulse signal comprising a plurality of frames each having a series of a predetermined number of pulses which are tended to be affected by noise and pulse mutilation. Pulses in each frame are counted and from the count is derived an instantaneous wheel speed value. The difference between the successively derived instantaneous speed values is taken and compared with a predetermined threshold. A first or a second indication is given in response to the difference being lower or higher than the threshold, respectively. If the first indication is given, output signals representing the average wheel speed and average wheel acceleration of the wheel are derived from the instantaneous speed values of successive frames. If the second indication is given, the instantaneous speed value of the previous frame is used instead of the instantaneous value of the subsequent frame which is disturbed by noise or pulse mutilation to derive the output signals.

    摘要翻译： 脉冲信号由具有与车轮的转速成比例的频率的车轮速度传感器产生，该脉冲信号包括多个帧，每个帧具有预定数量的脉冲倾向于受噪声影响 和脉冲切割。 对每个帧中的脉冲进行计数，并从计数得出瞬时轮速值。 取出连续导出的瞬时速度值之间的差并与预定阈值进行比较。 响应于差分分别低于或高于阈值来给出第一或第二指示。 如果给出第一指示，则表示轮的平均车轮速度和平均车轮加速度的输出信号从连续帧的瞬时速度值导出。 如果给出第二指示，则使用前一帧的瞬时速度值而不是被噪声或脉冲切断所干扰的后续帧的瞬时值来导出输出信号。

    Failure diagnosis system for vehicle
    7.
    发明授权
    Failure diagnosis system for vehicle 失效
    车辆故障诊断系统

    公开(公告)号：US4817418A

    公开(公告)日：1989-04-04

    申请号：US113327

    申请日：1987-10-26

    申请人： Ken Asami ,  Kazunori Sakai ,  Shinichi Hori ,  Noriyuki Nakashima ,  Yutaka Okuda ,  Kimio Tamura

    发明人： Ken Asami ,  Kazunori Sakai ,  Shinichi Hori ,  Noriyuki Nakashima ,  Yutaka Okuda ,  Kimio Tamura

    IPC分类号： B60R16/02 ,  B60T8/88 ,  F02D41/22 ,  G01M17/007 ,  G01R31/00 ,  G07C5/08 ,  G01M19/00 ,  G06F11/00

    CPC分类号： G07C5/0808 ,  B60T8/885 ,  F02D41/22 ,  G01R31/007 ,  Y02T10/40

    摘要： A failure diagnosis system for a vehicle includes a failure detection means for detecting failures of devices or apparatuses installed in a vehicle, a storage means for storing failure information detected by the failure detection means, a failure display means for displaying failure information stored in the storage means, a time information means for adding failure information detected by the failure detection means and stored in the storage means to time information showing the time when the failure information is detected, a retrieval time input means for inputting a retrieval time and a selective display means for displaying selectively failure information which has time information being within the retrieval time.

    摘要翻译： 一种用于车辆的故障诊断系统包括用于检测车辆中安装的装置或装置的故障的故障检测装置，用于存储由故障检测装置检测的故障信息的存储装置，用于显示存储在存储器中的故障信息的故障显示装置 意味着用于将故障检测装置检测到的存储在存储装置中的故障信息添加到表示检测到故障信息的时间的时间信息的时间信息装置，用于输入检索时间的检索时间输入装置和选择显示装置 用于选择性地显示具有在检索时间内的时间信息的故障信息。

    Detection of abnormality for rotational speed sensor
    8.
    发明授权
    Detection of abnormality for rotational speed sensor 失效
    检测转速传感器异常

    公开(公告)号：US4969695A

    公开(公告)日：1990-11-13

    申请号：US180629

    申请日：1988-04-06

    申请人： Hiromi Maehata ,  Yutaka Okuda ,  Syouichi Masaki ,  Satoshi Hirano ,  Ken Asami ,  Kazunori Sakai

    发明人： Hiromi Maehata ,  Yutaka Okuda ,  Syouichi Masaki ,  Satoshi Hirano ,  Ken Asami ,  Kazunori Sakai

    IPC分类号： B60T8/88 ,  G01P3/42 ,  G01P3/44 ,  G01P21/02

    CPC分类号： G01P21/02 ,  B60T8/885 ,  B60T2270/416

    摘要： In an apparatus for detecting the abnormality of a rotational speed sensor adapted for, for example, an anti-skid control system, a time period within which a subsequent pulse will be generated by the rotational speed sensor in response to the rotation of a body of revolution such as wheel is estimated on the basis of the latest pulse interval of the pulses previously generated therefrom and a value corresponding to the force of inertia of the wheel developed on the braking operation thereof. The determination of abnormality of the rotational speed sensor is made when the subsequent pulse is not produced within the estimated time period. This is arranged based on the fact that the pulse interval depends upon the inertial force of the wheel. With the above arrangement, the abnormality detection of the speed sensor can be quickly made, so that a fail-safe control in a braking system can be speedily performed in response to the occurrence of abnormality of the speed sensor.

    摘要翻译： 在用于检测适合于例如防滑控制系统的转速传感器的异常的装置中，响应于旋转速度传感器的身体的旋转将由旋转速度传感器产生后续脉冲的时间段 基于先前从其产生的脉冲的最新脉冲间隔来估计诸如车轮的转速，以及对应于在其制动操作时产生的车轮的惯性力的值。 当在预测时间段内不产生后续脉冲时，进行转速传感器的异常判定。 这是基于脉冲间隔取决于车轮的惯性力的事实进行的。 通过上述结构，可以快速地进行速度传感器的异常检测，从而能够根据速度传感器的异常的发生迅速地进行制动系统的故障保护控制。

    Apparatus for controlling hydraulic pressure to be applied to effect braking of wheels
    9.
    发明授权
    Apparatus for controlling hydraulic pressure to be applied to effect braking of wheels 失效
    用于控制要施加以产生车轮制动的液压的装置

    公开(公告)号：US4805104A

    公开(公告)日：1989-02-14

    申请号：US95183

    申请日：1987-09-11

    申请人： Masashi Kishimoto ,  Ken Asami ,  Kazunori Sakai

    发明人： Masashi Kishimoto ,  Ken Asami ,  Kazunori Sakai

    IPC分类号： B60T8/58 ,  B60T8/62 ,  B60T8/64

    CPC分类号： B60T8/58

    摘要： A wheel slipping control apparatus for controlling a braking hydraulic pressure to be applied to a wheel so as to perform an effective braking operation. The wheel slipping control apparatus comprises a control unit for generating a control signal in accordance with the wheel slipping state so as to perform a braking pressure control cycle so that the braking hydraulic pressure is set to a pressure decreasing mode and then to a pressure increasing mode. In the control unit, one of the braking pressure control cycles to be performed is determined as a learning control cycle to obtain a learning pressure-decreased value decremented in the learning control cycle and to obtain a learning pressure-increased value incremented in the learning control cycle. A present pressure-decreased value decremented in a control cycle after the learning control cycle is obtained to calculate a target pressure-increased value on the basis of the obtained learning pressure-decreased value and learning pressure-increased value whereby the braking hydraulic pressure is first increased to the vicinity of a wheel locking limit pressure after decreased in the pressure-decreasing mode.

    摘要翻译： 一种用于控制施加到车轮的制动液压的车轮滑动控制装置，以便执行有效的制动操作。 车轮滑动控制装置包括：控制单元，用于根据车轮滑动状态生成控制信号，以执行制动压力控制循环，使得制动液压设定为减压模式，然后设定为增压模式 。 在控制单元中，要执行的制动压力控制循环中的一个被确定为学习控制循环，以获得在学习控制循环中递减的学习压力降低值，并获得在学习控制中增加的学习压力增加值 周期。 在获得学习控制周期之后的控制周期中，目前的压力降低值基于获得的学习压力降低值和学习压力增加值计算目标增压值，由此制动液压首先 在压力降低模式下降低后，增加到车轮锁定极限压力附近。

    Anti-skid control with fail-safe function
    10.
    发明授权
    Anti-skid control with fail-safe function 失效
    具有故障安全功能的防滑控制

    公开(公告)号：US4789938A

    公开(公告)日：1988-12-06

    申请号：US833230

    申请日：1986-02-26

    申请人： Hiromi Maehata ,  Yutaka Okuda ,  Shoichi Masaki ,  Satoshi Hirano ,  Ken Asami ,  Kazunori Sakai

    发明人： Hiromi Maehata ,  Yutaka Okuda ,  Shoichi Masaki ,  Satoshi Hirano ,  Ken Asami ,  Kazunori Sakai

    IPC分类号： B60T8/48 ,  B60T8/172 ,  B60T8/1763 ,  B60T8/70 ,  B60T8/88 ,  B60T8/94

    CPC分类号： B60T8/94 ,  B60T8/885

    摘要： In an anti-skid control system for a motor vehicle there is provided a fail-safe control system for providing a compensation for a proper vehicle braking operation against the occurrence of failure of a hydraulic pressure control valve. The fail-safe control system includes a device for monitoring a control signal for controlling the operation of the control valve so that the hydraulic pressure applied to a wheel braking cylinder is regulated for preventing a wheel of the vehicle from skidding. The monitoring device detects the occurrence of failure of the control valve when the control signal indicative of one of the operation modes of the control valve is continuously generated more than a predetermined time period. In response to the detection, the fail-safe control system switches a directional control valve to the passage-opening condition so that the hydraulic pressure from a master cylinder can directly be applied to the wheel braking cylinder, thereby enabling the braking operation to be controlled by a vehicle driver.

    摘要翻译： 在用于机动车辆的防滑控制系统中，提供了一种故障安全控制系统，用于针对液压控制阀故障的发生提供适当的车辆制动操作的补偿。 故障保护控制系统包括用于监控用于控制控制阀的操作的控制信号的装置，使得施加到车轮制动缸的液压被调节以防止车辆的车轮打滑。 当指示控制阀的操作模式中的一个的控制信号连续产生超过预定时间段时，监控装置检测控制阀故障的发生。 响应于检测，故障安全控制系统将方向控制阀切换到通行状态，使得来自主缸的液压可以直接施加到车轮制动缸，从而能够控制制动操作 由车辆司机。