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15 条记录 (耗时 0.022 秒)

    System for vehicle height adjustment with steering angle change rate correction
    4.
    发明公开
    System for vehicle height adjustment with steering angle change rate correction 失效
    具有转向角度变化率校正的车辆高度调整系统

    公开(公告)号：EP0224036A3

    公开(公告)日：1987-11-11

    申请号：EP86114687

    申请日：1986-10-22

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  TOYOTA CENTRAL RESEARCH AND DEVELOPMENT LABORATORIES, INC.

    发明人： Ikemoto, Hiroyuki ,  Oowa, Nobutaka ,  Arai, Yasuji ,  Yasuike, Osamu ,  Doi, Shunichi

    IPC分类号： B60G17/00

    CPC分类号： B60G17/0162

    摘要： In this vehicle height adjustment system, a plurality of actuator assemblies are provided, one corresponding to each one of the vehicle wheels and resiliently suspending it from the vehicle body. These actuator assemblies have pressure chambers, and each is adapted to increase or decrease the vehicle height at a location corresponding to its corresponding wheel as respective results of supplying or discharging of working fluid to or from its pressure chamber. Working fluid supply/discharge means are provided corrresponding to the actuator assemblies and supply and discharge working fluid to and from their pressure chambers. Vehicle height detection means are provided for sensing the heights of the vehicle above the wheels. A means detects the rate of change of the steering angle of the vehicle. And a means for computing and control controls the working fluid supply/discharge means, based on the deviations of the actual wheel heights from standard wheel heights, and carries out control adjustment of the actual wheel heights to the standard wheel heights, by performing a prediction calculation of the fluctuations in wheel heights caused by vehicle rolling from the rate of change of steering angle as detected by the means for detecting the rate of change of steering angle and from the vehicle speed as detected by the vehicle speed detecting means, and by carrying out a correction to the adjustment control of the working fluid supplying and discharging means, based upon the calculation result, by an amount appropriate substantially to eliminate the wheel height fluctuations.

    System for vehicle body roll control performing suspension hardness control
    6.
    发明公开
    System for vehicle body roll control performing suspension hardness control 失效
    用于车身硬度控制的悬架硬度控制系统

    公开(公告)号：EP0220674A3

    公开(公告)日：1987-11-11

    申请号：EP86114666

    申请日：1986-10-22

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  TOYOTA CENTRAL RESEARCH AND DEVELOPMENT LABORATORIES, INC.

    发明人： Ikemoto, Hiroyuki ,  Oowa, Nobutaka ,  Hayashi, Yasutaka TOYOTA CENTRAL RESEARCH AND DEV. ,  Doi, Shunichi TOYOTA CENTRAL RESEARCH AND DEV.

    IPC分类号： B60G17/00

    CPC分类号： B60G17/0162

    摘要： In this roll control system, suspension means are provided for resiliently suspending the vehicle wheels with variable hardness/softness characteristics, each including an actuator with a pressure chamber which increases or decreases wheel suspension height according to supply or discharge of working fluid. Working fluid supply/discharge means are provided for the actuators, to supply and discharge working fluid to and from their pressure chambers. The road speed, the steering angle, and the actual body roll angle, are detected. A means for computing and control computes a steady state vehicle body roll angle Ø ∞ from the vehicle speed and steering angle, advances the phase of a signal indicative of Ø ∞ to compute a compensating roll angle value Φ ∞ and then computes a difference value φ̂ as based upon a desired roll angle φ a , Φ ∞ , and the actual roll angle Ø t , according to the equation: where k1 and k2 are positive constants. And the computing and control means is adapted to control the working fluid supplying and discharging means based upon φ̂ when the absolute value of φ̂ is larger than a determinate value φ̂ 1 , and to control the hardness/softness characteristics of the suspension means according to the absolute value of φ̂ when the absolute value of φ̂ is smaller than φ 1 .

    System for vehicle height adjustment with steering angle change rate correction
    7.
    发明公开
    System for vehicle height adjustment with steering angle change rate correction 失效
    电平控制的用于车辆的转向角的变化率的函数。

    公开(公告)号：EP0224036A2

    公开(公告)日：1987-06-03

    申请号：EP86114687.6

    申请日：1986-10-22

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  TOYOTA CENTRAL RESEARCH AND DEVELOPMENT LABORATORIES, INC.

    发明人： Ikemoto, Hiroyuki ,  Oowa, Nobutaka ,  Arai, Yasuji ,  Yasuike, Osamu ,  Doi, Shunichi

    IPC分类号： B60G17/00

    CPC分类号： B60G17/0162

    摘要： In this vehicle height adjustment system, a plurality of actuator assemblies are provided, one corresponding to each one of the vehicle wheels and resiliently suspending it from the vehicle body. These actuator assemblies have pressure chambers, and each is adapted to increase or decrease the vehicle height at a location corresponding to its corresponding wheel as respective results of supplying or discharging of working fluid to or from its pressure chamber. Working fluid supply/discharge means are provided corrresponding to the actuator assemblies and supply and discharge working fluid to and from their pressure chambers. Vehicle height detection means are provided for sensing the heights of the vehicle above the wheels. A means detects the rate of change of the steering angle of the vehicle. And a means for computing and control controls the working fluid supply/discharge means, based on the deviations of the actual wheel heights from standard wheel heights, and carries out control adjustment of the actual wheel heights to the standard wheel heights, by performing a prediction calculation of the fluctuations in wheel heights caused by vehicle rolling from the rate of change of steering angle as detected by the means for detecting the rate of change of steering angle and from the vehicle speed as detected by the vehicle speed detecting means, and by carrying out a correction to the adjustment control of the working fluid supplying and discharging means, based upon the calculation result, by an amount appropriate substantially to eliminate the wheel height fluctuations.

    System for vehicle body roll control performing suspension hardness control
    9.
    发明公开
    System for vehicle body roll control performing suspension hardness control 失效
    系统用于限制车体的侧倾运动与悬架刚度的控制。

    公开(公告)号：EP0220674A2

    公开(公告)日：1987-05-06

    申请号：EP86114666.0

    申请日：1986-10-22

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  TOYOTA CENTRAL RESEARCH AND DEVELOPMENT LABORATORIES, INC.

    发明人： Ikemoto, Hiroyuki ,  Oowa, Nobutaka ,  Hayashi, Yasutaka TOYOTA CENTRAL RESEARCH AND DEV. ,  Doi, Shunichi TOYOTA CENTRAL RESEARCH AND DEV.

    IPC分类号： B60G17/00

    CPC分类号： B60G17/0162

    摘要： In this roll control system, suspension means are provided for resiliently suspending the vehicle wheels with variable hardness/softness characteristics, each including an actuator with a pressure chamber which increases or decreases wheel suspension height according to supply or discharge of working fluid. Working fluid supply/discharge means are provided for the actuators, to supply and discharge working fluid to and from their pressure chambers. The road speed, the steering angle, and the actual body roll angle, are detected. A means for computing and control computes a steady state vehicle body roll angle Ø ∞ from the vehicle speed and steering angle, advances the phase of a signal indicative of Ø ∞ to compute a compensating roll angle value Φ ∞ and then computes a difference value φ̂ as based upon a desired roll angle φ a , Φ ∞ , and the actual roll angle Ø t , according to the equation: where k1 and k2 are positive constants. And the computing and control means is adapted to control the working fluid supplying and discharging means based upon φ̂ when the absolute value of φ̂ is larger than a determinate value φ̂ 1 , and to control the hardness/softness characteristics of the suspension means according to the absolute value of φ̂ when the absolute value of φ̂ is smaller than φ 1 .

    System for vehicle body roll control with overshoot prevention
    10.
    发明公开
    System for vehicle body roll control with overshoot prevention 失效
    系统，用于限制，同时避免Überkompressierungen车体的侧倾运动。

    公开(公告)号：EP0219866A2

    公开(公告)日：1987-04-29

    申请号：EP86114688.4

    申请日：1986-10-22

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  TOYOTA CENTRAL RESEARCH AND DEVELOPMENT LABORATORIES, INC.

    发明人： Oowa, Nobutaka ,  Arai, Yasuji ,  Yasuike, Osamu ,  Ikemoto, Hiroyuki ,  Doi, Shunichi

    IPC分类号： B60G17/00

    CPC分类号： B60G17/0162 ,  Y10S280/01

    摘要： In this system for vehicle roll control, a plurality of actuator assemblies are provided, one corresponding to each one of the vehicle wheels and resiliently suspending it from the vehicle body. These actuator assemblies have pressure chambers, and each is adapted to increase or decrease the vehicle height at a location corresponding to its corresponding vehicle wheel as respective results of supplying or discharging of working fluid to or from its pressure chamber; they are controlled by duty ratio control. Working fluid supplying and discharging means are provided corresponding to the actuator assemblies arrd supply working fluid to and discharge working fluid from their working fluid chambers. A means senses the road speed of the vehicle, and a meanssensesthe steering angle of the vehicle. Vehicle height detection means are prov- idedforsensingthe heights of the vehicle wheels. A means for computing and control calculates the deviations of the actual detected wheel heights from standard wheel heights; when a certain condition is satisfied, it controls the working fluid supplying and discharging means according to a first duty ratio according to the deviations of the actual wheel heights, so as to maintain the deviations of the actual wheel heights within determinate ranges; and then it controls the working fluid supplying and discharging means in the reverse sense of supply and drain and according to a second duty ratio in a certain manner.