Steering control system for wheeled vehicle
    1.
    发明授权
    Steering control system for wheeled vehicle 失效
    轮式车辆转向控制系统

    公开(公告)号:US4666013A

    公开(公告)日:1987-05-19

    申请号:US695478

    申请日:1985-01-28

    摘要: A wheeled vehicle is equipped with a feedforward steering control system which steers the vehicle through front or rear road wheels in accordance with a driver's steering input such as an angular displacement of a steering wheel, and a negative feedback system which senses a turning behavior of the vehicle such as a yaw rate or a lateral acceleration, and steers the vehicle through the front or rear wheels in such a negative direction as to reduce the turning behavior. The feedforward system may control the angular direction of the front or rear wheels in accordance with a linear combination of the steering input and the time derivative of the steering input, or may control the angular directions of both of the front and rear wheels in accordance with different transfer functions between the steering input and the front and rear wheel angles. The negative feedback system is combined with the feedforward system in various ways to provide desired characteristics of the turning behavior. The negative feedback quantity determined by the negative feedback system may be proportional to the sensed turning behavior, or may be determined in accordance with the difference between the sensed turning behavior, and the reference turning behavior calculated from the vehicle speed and steering input.

    摘要翻译: 轮式车辆配备有前馈转向控制系统,其根据驾驶员的转向输入(例如方向盘的角位移)和负反馈系统,通过前车轮或后车轮转向车辆,以及负反馈系统,其感测车轮的转向行为 车辆,例如偏航率或横向加速度,并且以如此减小转弯行为的方向使车辆通过前轮或后轮。 前馈系统可以根据转向输入和转向输入的时间导数的线性组合来控制前轮或后轮的角度方向,或者可以根据转向输入的时间导数来控制前轮和后轮的角度方向 转向输入与前轮和后轮之间的转换功能不同。 负反馈系统与前馈系统以各种方式结合,以提供所需的转向特性。 由负反馈系统确定的负反馈量可以与感测到的转向行为成比例,或者可以根据感测到的转向行为与根据车速和转向输入计算的参考转弯行为之间的差来确定。

    Rear wheel steering control for vehicle
    2.
    发明授权
    Rear wheel steering control for vehicle 失效
    车辆后轮转向控制

    公开(公告)号:US4625822A

    公开(公告)日:1986-12-02

    申请号:US703593

    申请日:1985-02-20

    CPC分类号: B62D7/159

    摘要: A rear wheel steering control system which determines a target rear wheel steering angle in accordance with a steering angle of front wheels of the vehicle and steers the rear wheels so that the rear wheel steering angle is maintained equal to the target rear wheel steering angle, and is arranged not to decrease the difference between the target angle and the actual rear wheel steering angle immediately to zero, but to decrease the difference gradually in accordance with a distance traveled by the vehicle, in order to prevent the rear wheels from being steered too much in a direction opposite to a steered direction of the front wheels especially when the vehicle speed is low, and thereby prevent the rear of the vehicle from bumping against an object lying alongside the vehicle.

    摘要翻译: 一种后轮转向控制系统,其根据车辆的前轮的转向角确定目标后轮转向角,并且使后轮转向,使得后轮转向角保持与目标后轮转向角相等,以及 被设置为不将目标角度和实际的后轮转向角之间的差减小到零,而是根据车辆行进的距离逐渐减小差距,以防止后轮转向太多 特别是当车速低时,与前轮的转向相反的方向,从而防止车辆的后部碰撞在车辆旁边的物体。

    Rear wheel steering angle control system for vehicles
    5.
    发明授权
    Rear wheel steering angle control system for vehicles 失效
    后轮转向角度控制系统

    公开(公告)号:US5105899A

    公开(公告)日:1992-04-21

    申请号:US419161

    申请日:1989-10-10

    IPC分类号: B62D7/14 B62D7/15

    CPC分类号: B62D7/159

    摘要: A system for controlling the steering angle for the rear wheels of a vehicle is provided. This system includes an angle sensor for sensing a steered angle, steered angular velocity, and steered angular acceleration, a vehicle speed sensor, and a steering angle controller. The steering angle controller is adapted for controlling steering of the rear wheels so as to vary the position where the side slip angle of the vehicle becomes zero with respect to the center of gravity based on the steered angle, steered angular velocity, steered angular acceleration, and vehicle speed to improve manoeuverability of the vehicle in cornering.

    Rear wheel steer angle control system for vehicle
    7.
    发明授权
    Rear wheel steer angle control system for vehicle 失效
    后轮转向角度控制系统

    公开(公告)号:US4947326A

    公开(公告)日:1990-08-07

    申请号:US277745

    申请日:1988-11-30

    IPC分类号: B62D7/15

    CPC分类号: B62D7/159

    摘要: A rear wheel steer angle control system for a vehicle includes a vehicle speed sensor, a steering wheel angle sensor and a controller for controlling a rear wheel steer angle .delta..sub.r (s) with respect to a front wheel steer angle .delta..sub.f (s) in accordance with .delta..sub.r (s)/.delta..sub.f (s)=(K+Tls)/(1+T2s), where K, T1 and T2 are control parameters each of which is a function of the vehicle speed, and includes a quantity representing a distance of a zero sideslip angle position from a center of gravity of the vehicle. The quantity representing the distance of the zero sideslip angle position at which the sideslip angle is to be zero, may be fixed at a constant value, or may be adjusted in accordance with any one or more of the vehicle speed, the steering wheel angle and the time rate of change of the steering wheel angle.

    摘要翻译: 用于车辆的后轮转向角度控制系统包括车速传感器,方向盘角度传感器和用于控制相对于前轮转向角度f(s)的后轮转向角度角(r)的控制器, 根据delta r(s)/ delta f(s)=(K + Tls)/(1 + T2s),其中K,T1和T2是每个都是车速的函数的控制参数, 代表来自车辆重心的零侧滑角位置的距离。 表示侧滑角度为零的零侧滑角位置的距离的量可以固定为恒定值,或者可以根据车速,方向盘角度和方向盘角度中的任一个或多个来调整 方向盘角度的时间变化率。

    Four-wheel steering control system for vehicle
    9.
    发明授权
    Four-wheel steering control system for vehicle 失效
    车辆四轮转向控制系统

    公开(公告)号:US4705131A

    公开(公告)日:1987-11-10

    申请号:US695345

    申请日:1985-01-28

    摘要: A vehicle steering control system for steering both front and rear wheels is so arranged that a transfer function between a driver's steering input and a front wheel steering angle, and a transfer function between the steering input and a rear wheel steering angle are differentiated from each other so as to obtain an optimum cornering characteristic of the vehicle. The system has a steering input sensor, a vehicle speed sensor, means for determining the transfer function for the front wheels from a steering frequency and a vehicle speed, means for determining the transfer function of the rear wheels, a front wheel actuator for steering the front wheels, and a rear wheel actuator for steering the rear wheels. The means for determining the transfer function of the rear wheels may be an electronic circuit, or a hydraulic fluid flow restrictor such as an orifice, or a mechanical gearing.

    摘要翻译: 用于转向前轮和后轮的车辆转向控制系统被布置成使得驾驶员的转向输入和前轮转向角之间的传递函数以及转向输入和后轮转向角之间的传递函数彼此不同 以获得车辆的最佳转弯特性。 该系统具有转向输入传感器,车速传感器,用于从转向频率和车速确定前轮的传递功能的装置,用于确定后轮的传递功能的装置,用于转向的前轮致动器 前轮和用于转向后轮的后轮致动器。 用于确定后轮的传递功能的装置可以是电子电路或诸如孔的液压流体限流器或机械传动装置。

    Method of controlling vehicle
    10.
    发明授权
    Method of controlling vehicle 失效
    车辆控制方法

    公开(公告)号:US4705130A

    公开(公告)日:1987-11-10

    申请号:US695228

    申请日:1985-01-28

    CPC分类号: B62D6/007 B60C23/00 B62D7/159

    摘要: A method of controlling an automotive vehicle is disclosed whereby a steering characteristic of the vehicle is automatically adjustable to a feature of the driver's steering the vehicle. The feature of the driver's steering the vehicle is detected in terms of a driver's technique or habit in manipulating a steering wheel or a motion characteristic of the vehicle such as a yaw rate or a lateral acceleration resulting from a driver's manipulating the steering wheel. A pair of steerable road wheels, such as a pair of front road wheels, are steered through an angle which is proportioned to an angle through which the steering wheel is manually turned at a ratio which is variable with variation in the feature of the driver's steering the vehicle.

    摘要翻译: 公开了一种控制机动车辆的方法,其中车辆的转向特性可自动调节为驾驶员转向车辆的特征。 根据驾驶员在操纵方向盘或车辆的运动特性的技术或习惯来检测驾驶员驾驶车辆的特征,例如由驾驶员操纵方向盘导致的横摆率或横向加速度。 一对可转向的车轮(例如一对前轮)被转向与角度成比例的角度,通过该角度方向盘以可以随驾驶员转向器的特征的变化而变化的比例手动地转动 机动车。