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    • 4. 发明申请
    • VEHICLE MOTION CONTROL APPARATUS
    • 车辆运动控制装置
    • US20100076659A1
    • 2010-03-25
    • US12629233
    • 2009-12-02
    • Akitaka NISHIOTatsuya YanoSeiichi KojimaKiyohito TakeuchiHirohisa Tanaka
    • Akitaka NISHIOTatsuya YanoSeiichi KojimaKiyohito TakeuchiHirohisa Tanaka
    • B60T7/12B60T13/18
    • B60T13/148B60T8/4045B60T8/4081B60T8/441B60T8/5006B60T13/147
    • This apparatus is applied to a vehicle brake apparatus provided with a hydraulic booster operated by utilizing an accumulator hydraulic pressure that is adjusted to a predetermined high pressure (not less than a lower limit value) by a drive control of a hydraulic pump. This apparatus executes an automatic pressurization control by controlling plural solenoid valves with the use of the accumulator hydraulic pressure. The increasing slope of the brake hydraulic pressure during the automatic pressurization control is determined on the basis of the vehicle motion state. The increasing slope is restricted to be not more than a predetermined restriction value, in the case where the accumulator hydraulic pressure at the time of starting the automatic pressurization control is less than “a reference hydraulic pressure that is greater than a minimum value of the accumulator hydraulic pressure necessary for assisting the brake operation by the hydraulic booster and smaller than the lower limit value”.
    • 该装置应用于具有液压助力器的车辆制动装置,其通过利用通过液压泵的驱动控制将调节到预定高压(不低于下限值)的蓄压器液压进行操作。 该装置通过利用蓄压器液压控制多个电磁阀来执行自动加压控制。 基于车辆运动状态来确定自动加压控制期间制动液压的增加斜率。 增加斜率被限制在不大于预定限制值的情况下,在启动自动加压控制时的蓄压器液压小于“累加器的最小值的基准油压” 通过液压助力器辅助制动操作所必需的液压压力小于下限值“。
    • 5. 发明授权
    • Vehicle motion control device
    • 车辆运动控制装置
    • US06676230B2
    • 2004-01-13
    • US09981923
    • 2001-10-19
    • Tetsuya KunoTetsuaki TsuzukiAkitaka NishioMasanobu FukamiShiro Monzaki
    • Tetsuya KunoTetsuaki TsuzukiAkitaka NishioMasanobu FukamiShiro Monzaki
    • B60T844
    • B60T8/367B60T8/36B60T8/4854B60T13/72
    • A vehicle motion control device reduces noise resulting from operation of a vacuum booster when an automatic pressure control is performed by properly controlling the energization of a linear solenoid of a booster actuator. An automatic hydraulic pressure generator is controlled in accordance with the vehicle motion condition and a hydraulic pressure control valve device is controlled to perform the automatic pressure control. A target electric current of the linear solenoid for actuating the vacuum booster is instantaneously increased to a starting target value which corresponds to an electric current value immediately before starting the operation of the vacuum booster and which is less than a maximum value of the target electric current, and then is gradually increased approximately to the maximum value of the target electric current.
    • 当通过适当地控制增压致动器的线性螺线管的通电来执行自动压力控制时,车辆运动控制装置减少由真空助力器的操作引起的噪声。 根据车辆运动状态控制自动液压发生器,控制液压控制阀装置进行自动压力控制。 用于致动真空助力器的线性螺线管的目标电流立即增加到对应于在开始真空助力器的操作之前的电流值的起始目标值,并且小于目标电流的最大值 ,然后逐渐增加到目标电流的最大值。
    • 6. 发明授权
    • Vehicle running condition judgement device
    • 车辆运行状态判断装置
    • US06308115B1
    • 2001-10-23
    • US09361996
    • 1999-07-28
    • Hiroyuki YamaguchiKatsuhiro AsanoKenji TozuTakayuki ItohAkitaka Nishio
    • Hiroyuki YamaguchiKatsuhiro AsanoKenji TozuTakayuki ItohAkitaka Nishio
    • G06F770
    • B60W40/064B60T8/172B60T2270/86B60W40/101B60W40/103B60W2550/12B62D6/04B62D7/159
    • A vehicle running condition judgment device for accurately detecting a change in a road surface condition and a vehicle's limit running condition. With substitution of respective tire characteristics and a detected state quantity into a vehicle motion model, vehicle slip angles are estimated for respective assumed road surface conditions. Based on the current state quantity and the last estimated vehicle slip angle, currently estimated vehicle slip angles for the respective assumed road surface conditions are compensated. A differential operation section calculates an estimation value of a vehicle slip angular velocity for each of the assumed road surface conditions based on the compensated vehicle slip angles for the respective assumed road surface conditions. Meanwhile, an operation section calculates a detection value of a vehicle slip angular velocity based on the detected state quantity. By comparing the detection value and the respective estimation values for the assumed road surface conditions, the current road surface condition is determined. Further, a lateral acceleration is calculated based on a vehicle slip angle, and compared with the detection value for determination of the road surface condition, and also with a predetermined limit value for determination of a vehicle's limit running condition.
    • 一种车辆行驶状态判断装置,用于准确地检测路面状况和车辆极限行驶状态的变化。 通过将各轮胎特性和检测到的状态量替换为车辆运动模型,针对相应的假定路面条件估计车辆滑行角度。 基于当前状态量和最后估计的车辆滑移角度,对各个假设路面条件的当前估计车辆滑移角进行补偿。 差分运算部根据各假定路面条件的补偿车辆滑移角,计算出各假定路面条件下的车辆滑行角速度的推定值。 同时,操作部根据检测到的状态量来计算车辆滑行角速度的检测值。 通过比较所述假设路面条件的检测值和各自的估计值,确定当前路面状况。 此外,基于车辆滑移角计算横向加速度,并且与用于确定路面状况的检测值进行比较,并且还与用于确定车辆极限行驶状态的预定极限值进行比较。
    • 7. 发明授权
    • Anti-skid control system for automotive vehicle
    • 汽车防滑控制系统
    • US5746487A
    • 1998-05-05
    • US560487
    • 1995-11-17
    • Takeshi NaitoAkitaka Nishio
    • Takeshi NaitoAkitaka Nishio
    • B60T8/48B60T8/174B60T8/1761B60T8/34B60T8/36B60T8/42B60T8/50B60T8/58G06F7/70
    • B60T8/348B60T8/17616B60T8/36B60T8/42B60T8/4275B60T8/5006
    • An anti-skid control system for an automotive vehicle includes a hydraulic pressure source, a wheel brake for braking a wheel, a pressure control valve interposed between the hydraulic pressure source to the wheel brake in order to regulate a hydraulic braking pressure supplied from the hydraulic pressure source and the wheel brake, the pressure control valve being brought into a duty-cycle pressure-increasing mode operation and a pressure-decreasing mode operation for increasing and decreasing the hydraulic braking pressure, respectively. The duty-cycle pressure-increasing mode operation are repeated such that the pressure-decreasing mode operation is established therebetween. A later pressure-increasing mode operation is treated as a succession of the previous pressure-increasing mode operation if a time duration required for the pressure-decreasing mode operation between the previous and later pressure-increasing mode operations is less than a set value.
    • 一种用于机动车辆的防滑控制系统包括液压源,用于制动车轮的车轮制动器,设置在液压源与车轮制动器之间的压力控制阀,以便调节从液压供应的液压制动压力 压力源和车轮制动器,压力控制阀分别进入占空比增压模式操作和减压模式操作,以分别提高和降低液压制动压力。 重复占空比增压模式操作,使得它们之间建立减压模式操作。 如果在先前的压力增加模式操作之间的压力降低模式操作所需的持续时间小于设定值,则后续的增压模式操作被视为先前的增压模式操作的一连串。
    • 9. 发明授权
    • Yaw rate detecting system for a vehicle
    • 车辆偏航率检测系统
    • US06324445B2
    • 2001-11-27
    • US09416524
    • 1999-10-12
    • Kenji TozuAkitaka Nishio
    • Kenji TozuAkitaka Nishio
    • B62D600
    • B60T8/172B60T2250/06
    • The present invention is directed to a yaw rate detecting system for a vehicle, which includes a yaw rate sensor for measuring a yaw rate of the vehicle. The apparatus is adapted to determine a stopped state of the vehicle, set a zero point at the yaw rate measured by the yaw rate sensor when the stopped state of the vehicle is determined, and calculate an actual yaw rate in response to an output of the yaw rate sensor, on the basis of the zero point. The actual yaw rate is calculated by subtracting the yaw rate at the zero point from the yaw rate measured by the yaw rate sensor. It may be so arranged that a desired yaw rate is set on the basis of a vehicle speed and a steering angle, and the zero point is corrected in response to a comparison of the desired yaw rate and the actual yaw rate. For example, a temporary zero point is set when the stopped state of the vehicle is determined, and a deviation between the desired yaw rate and the actual yaw rate is calculated. In this case, the actual yaw rate is calculated by subtracting the yaw rate at the temporary zero point from the yaw rate measured by the yaw rate sensor. Then, the zero point is corrected on the basis of the temporary zero point in response to the deviation.
    • 本发明涉及一种用于车辆的偏航率检测系统,其包括用于测量车辆的偏航率的横摆率传感器。 该装置适于确定车辆的停止状态,当确定车辆的停止状态时,以横摆率传感器测量的横摆率设定零点,并且响应于所述车辆的输出来计算实际横摆率 偏航率传感器,基于零点。 通过从横摆率传感器测量的横摆率减去零点处的偏航率来计算实际横摆率。 可以根据车速和转向角来设定期望的偏航角速度,并且响应于期望的横摆率和实际的横摆率的比较来校正零点。 例如,当确定车辆的停止状态并且计算期望横摆率和实际横摆率之间的偏差时,设置临时零点。 在这种情况下,通过从横摆率传感器测量的横摆率中减去临时零点处的偏航率来计算实际横摆率。 然后,基于偏差响应于临时零点来校正零点。
    • 10. 发明授权
    • Antiskid control device
    • 防滑控制装置
    • US5938298A
    • 1999-08-17
    • US749238
    • 1996-11-15
    • Takeshi NaitoAkitaka Nishio
    • Takeshi NaitoAkitaka Nishio
    • B60T8/58B60T8/1761B60T8/40B60T8/42
    • B60T8/4208B60T8/4045
    • The object to be achieved by the present invention is to improve accuracy in determining whether or not it is necessary to terminate antiskid control and to reduce the frequency with which the control is terminated. The solution proposed by the present invention is to stop operation of a hydraulic pump before it is determined that the antiskid control should be terminated during the duty pressure increase operation, whereby fluid pressure in a wheel brake can be raised to a level of fluid pressure in a master cylinder before it is determined that the antiskid control should be terminated, to continue the antiskid control as long as the wheel tends to be locked and to terminate the antiskid control when the wheel does not tend to be locked.
    • 本发明要实现的目的是提高确定是否需要终止防滑控制并降低控制终止频率的精度。 本发明提出的解决方案是在确定在占空比增压操作期间防止防滑控制结束之前停止液压泵的操作,由此可以将车轮制动器中的流体压力提高到液压压力的水平 在确定防滑控制应终止之前的主缸,只要轮趋于被锁定就继续防滑控制,并且当车轮不趋于锁定时终止防滑控制。