Rear wheel steering angle control system for vehicles
    1.
    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
    2.
    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。

    Steering control system for wheeled vehicle
    3.
    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
    4.
    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。

    Electric vehicle
    7.
    发明授权
    Electric vehicle 失效
    电动车

    公开(公告)号:US5212431A

    公开(公告)日:1993-05-18

    申请号:US703514

    申请日:1991-05-21

    摘要: An electric vehicle driven by a motor is provided with a secondary battery and a generator which are controlled by a controller so that when an amount of charge of the secondary battery becomes lower than a predetermined value of the generator is put from a stopping state into an operating state and so that when the amount of charge of the secondary battery becomes higher than another predetermined value the generator is put from the operating state into the stopping state. The controller changes the predetermined values in accordance with the changing rate of the electric energy consumption of the secondary battery so that the secondary battery loses it amount of charge after the generator becomes empty of its fuel. The electric vehicle can fully perform its characteristic and the generator is effectively operated by storing excessive electric energy of the generator and effectively using the secondary battery.

    摘要翻译: 由电动机驱动的电动车辆设置有由控制器控制的二次电池和发电机,使得当二次电池的充电量低于发电机的预定值时,从停止状态变为 使得当二次电池的充电量变得高于另一个预定值时,发电机从操作状态进入停止状态。 控制器根据二次电池的电能消耗的变化率改变预定值,使得二次电池在发电机变空之后损失电量。 电动汽车可以充分发挥其特性,通过储存发电机的过多电能并有效利用二次电池,有效地发电。

    Automatic vehicle height-adjusting system
    10.
    发明授权
    Automatic vehicle height-adjusting system 失效
    自动车高调节系统

    公开(公告)号:US4518169A

    公开(公告)日:1985-05-21

    申请号:US476519

    申请日:1983-03-18

    摘要: An automatic vehicle height-adjusting system is applied to a vehicle including a sprung mass and an unsprung mass in contact with a road surface, the sprung mass being supported on the unsprung mass via a spring or the like. The system includes a sensor, which senses the distance between the sprung mass and the road surface and generates a distance signal indicative thereof. In response to the distance signal, a first discriminator or comparator determines whether or not the distance is less than a first predetermined value, and generates a first comparison signal indicative thereof. In response to the distance signal, a second discriminator or comparator determines whether or not the distance is greater than a second predetermined value, and generates a second comparison signal indicative thereof. The second predetermined value is chosen to be greater than the first predetermined value. In response to the first and second comparison signals, a control mechanism increases the height of the sprung mass with respect to the unsprung mass when the distance is less than the first predetermined value, and decreases the height of the sprung mass with respect to the unsprung mass when the distance is greater than the second predetermined value.

    摘要翻译: 将自动车高调整系统应用于包括与路面接触的悬挂质量和簧下质量的车辆,簧簧通过弹簧等支撑在簧下的质量上。 该系统包括感测弹簧质量与路面之间的距离的传感器,并产生指示其的距离信号。 响应于距离信号,第一鉴别器或比较器确定距离是否小于第一预定值,并产生指示其的第一比较信号。 响应于距离信号,第二鉴别器或比较器确定距离是否大于第二预定值,并且产生指示其的第二比较信号。 第二预定值被选择为大于第一预定值。 响应于第一和第二比较信号,当距离小于第一预定值时,控制机构增加悬挂质量相对于簧下质量的高度,并且减小簧上质量相对于簧下的高度 当距离大于第二预定值时。