Steering device for rear vehicle wheels
    4.
    发明授权
    Steering device for rear vehicle wheels 失效
    后车轮转向装置

    公开(公告)号:US5257191A

    公开(公告)日:1993-10-26

    申请号:US765529

    申请日:1991-09-25

    IPC分类号: B62D7/14 B62D7/15

    CPC分类号: B62D7/1581 B62D7/148

    摘要: A device for steering the rear wheels of a vehicle has a first motor controlled at least with respect to the steering angle of the steering wheel, a gear change mechanism for changing gear ratios, a second motor for controlling the gear ratio by driving the gear change mechanism, a steering mechanism for steering the rear wheels by transmitting a portion of the force equal to the product of the amount that the first motor is driven and the amount that the second motor is driven, a motor failure determination device for detecting motor failure when the amount that either of the first or second motors is driven is zero and the other of the motors is operated, and a control device for controlling both motors so that when motor failure is detected in one of the motors, the amount that the other motor is driven is brought to zero. The steering device may further have a sensor for detecting the steering angle of the rear wheels, and a sensor failure detecting device which monitors the steering angle detected by the sensor, and detects a failure of the sensor when the steering angle of the rear wheel changes although the amount that one of the motors is driven is zero. Also disclosed is a process for steering the rear wheels of a vehicle.

    Rear wheel turning system for four-wheel steered vehicle
    5.
    发明授权
    Rear wheel turning system for four-wheel steered vehicle 失效
    四轮转向车后轮转向系统

    公开(公告)号:US5227974A

    公开(公告)日:1993-07-13

    申请号:US661198

    申请日:1991-02-27

    CPC分类号: B62D7/159

    摘要: A rear wheel turning system for a four-wheel steered vehicle includes a rear wheel turning mechanism for turning the rear wheels of the vehicle, a front wheel turning angle sensor which detects a turning angle of front wheels .theta..sub.F, a vehicle speed sensor which detects a vehicle speed V, a yaw rate detector which detects a yaw rate .PSI. of the vehicle, a yaw acceleration detector which detects a yaw acceleration .PSI. of the vehicle, and a control unit which causes the rear wheel turning mechanism to turn the rear wheels by a target rear wheel turning angle TG.theta..sub.R which is defined by formulaTG.theta..sub.R =-K.sub.1 .theta..sub.F +K.sub.2 .multidot.V.multidot..PSI.+K.sub.3 .multidot.V.multidot..PSI.wherein K.sub.1, K.sub.2 and K.sub.3 respectively represent positive coefficients. The coefficient K.sub.3 is increased with increase in the vehicle speed V over a predetermined range of vehicle speed where the coefficient K.sub.2 is constant.

    摘要翻译: 用于四轮转向车辆的后轮转向系统包括用于转动车辆后轮的后轮转向机构,检测前轮theta F的转动角度的前轮转向角度传感器,检测 车速V,检测车辆的偏航率PSI的偏航率检测器,检测车辆的偏航加速度PSI的偏航加速度检测器以及使后轮转向机构将后轮转动的控制单元 由公式TGθR = -K1°F + K2xVx PSI + K3xVx PSI定义的目标后轮转向角TGθR,其中K1,K2和K3分别表示正系数。 在系数K2恒定的车速的预定范围内,系数K3随着车速V的增加而增加。

    Suspension control system cooperated with steering control system for
vehicle
    9.
    发明授权
    Suspension control system cooperated with steering control system for vehicle 失效
    与车辆转向控制系统相结合的悬架控制系统

    公开(公告)号:US5116078A

    公开(公告)日:1992-05-26

    申请号:US608981

    申请日:1990-11-05

    摘要: A vehicle control system includes an active suspension mechanism for providing a rolling property of a vehicle in a cornering operation of the vehicle and a suspension control device for controlling the vehicle in accordance with the rolling property provided by the active suspension mechanism and changing from one rolling property to another. A rear wheel steering mechanism steers a rear wheel in connection with steering of a front wheel, and a steering control device controls the steering of the rear wheel in accordance with a predetermined steering property and changes the steering property for the rear wheel. One of the steering property and the rolling property is changed in synchronism with a change in the other of the steering property and the rolling property. When a reverse phase property is provided for the rear wheel as a steering property and a reverse rolling property is provided for the active suspension system, the visibility of the cornering direction and the operability are improved to accomplish an active operation property. Alternatively when a same phase property is provided for the rear wheel as a steering property, the running stability can be improved.

    摘要翻译: 车辆控制系统包括用于在车辆的转弯操作中提供车辆的滚动性能的主动悬挂机构和根据主动悬架机构提供的滚动特性来控制车辆的悬架控制装置,并且从一个滚动 财产到另一个。 后轮转向机构与前轮的转向相关联地转向后轮,并且转向控制装置根据预定的转向属性来控制后轮的转向,并改变后轮的转向性能。 转向属性和滚动属性之一与转向属性和滚动属性中的另一个的变化同步地改变。 当为后轮提供反相特性作为转向属性并且为主动悬架系统提供反向滚动特性时,提高了转弯方向的可视性和可操作性,以实现主动操作性能。 或者,当为后轮设置相同的相位特性作为转向属性时,可以提高行驶稳定性。

    Vibration damper apparatus
    10.
    发明授权
    Vibration damper apparatus 失效
    振动阻尼器

    公开(公告)号:US5735510A

    公开(公告)日:1998-04-07

    申请号:US462368

    申请日:1995-06-05

    CPC分类号: F16F13/20

    摘要: A fluid type of vibration damper apparatus containing fluid in a rigid fluid container divided by a partition formed with an orifice into two fluid chambers in communication with each other through the orifice, one of the fluid chambers being closed up air-tightly by an elastic top wall to which a subject body of vibration is attached and containing a predetermined quantity of gas so as to be in direct contact with the fluid therein.

    摘要翻译: 一种流体类型的振动阻尼器装置,在刚性流体容器中容纳流体,所述刚性流体容器由形成有孔口的隔板分隔成通过孔口彼此连通的两个流体室,其中一个流体室由弹性顶部气密地封闭 墙体,其上附着振动体,并含有预定量的气体,以便与其中的流体直接接触。