Rear wheel steering control for vehicle
    11.
    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。

    Wishbone suspension for automotive vehicle
    13.
    发明授权
    Wishbone suspension for automotive vehicle 失效
    汽车悬架

    公开(公告)号:US4744586A

    公开(公告)日:1988-05-17

    申请号:US944169

    申请日:1986-12-22

    摘要: A lower arm and upper links of a double wishbone type suspension are arranged so that the resulting king pin axis about which a road wheel is pivotal, intersects the wheel rotational axis at or close to the wheel center so as to selectively minimize, neutralize or reverse the toe-out effect produced by a force which acts through the wheel center in the aft direction of the vehicle. The lateral rod which controls the orientation of the road wheel is arranged at a predetermined angle to control the amount of toe-in induced by the application of the above mentioned force and a force which acts laterally inboard along the wheel rotational axis.

    摘要翻译: 双臂骨架式悬架的下臂和上连杆被布置成使得转轮绕其转动的所得到的主销轴与车轮中心处的或靠近车轮中心的轮转动轴相交,以选择性地最小化,中和或反向 由车辆后方的车轮中心作用的力产生的脚趾效应。 控制车轮定向的侧杆以预定的角度布置,以控制通过施加上述力而产生的脚趾的量和沿车轮旋转轴线侧向地作用的力。

    Drive force control method for four-wheel drive vehicle
    14.
    发明申请
    Drive force control method for four-wheel drive vehicle 有权
    四轮驱动车辆的驱动力控制方法

    公开(公告)号:US20050217921A1

    公开(公告)日:2005-10-06

    申请号:US11093151

    申请日:2005-03-30

    摘要: A drive force control method for a four-wheel drive vehicle including a torque distributing mechanism capable of changing a drive force distribution ratio between front and rear wheels and a drive force distribution ratio between right and left front wheels or between right and left rear wheels. This method includes the steps of increasing the drive force distribution ratio of the rear wheels to the front wheels according to an increase in absolute value of a lateral G signal, and increasing the drive force distribution ratio of a turning outer wheel as one of the right and left front wheels or one of the right and left rear wheels to a turning inner wheel as the other. A lateral G sensor signal is corrected by an estimated lateral G signal calculated according to a steering angle and a vehicle speed to obtain a control lateral G signal, which is used as the lateral G signal.

    摘要翻译: 一种用于四轮驱动车辆的驱动力控制方法,其包括能够改变前轮和后轮之间的驱动力分配比的扭矩分配机构和左右前轮之间或左右后轮之间的驱动力分配比。 该方法包括根据横向G信号的绝对值的增加来增加后轮与前轮的驱动力分配比率的步骤,并且将转向外轮的驱动力分配比提高为右侧 并且将前轮或左右后轮中的一个左右彼此分离成转向内轮。 横向G传感器信号通过根据转向角和车速计算出的估计横向G信号来校正,以获得用作横向G信号的控制横向G信号。

    Method and system for computing a vehicle body slip angle in a vehicle movement control
    15.
    发明授权
    Method and system for computing a vehicle body slip angle in a vehicle movement control 失效
    用于在车辆运动控制中计算车身滑移角的方法和系统

    公开(公告)号:US06233513B1

    公开(公告)日:2001-05-15

    申请号:US09192894

    申请日:1998-11-17

    IPC分类号: G06F700

    CPC分类号: B62D6/04 B60T2230/02

    摘要: Provided are a method and system for computing a vehicle body slip angle in the vehicle movement control so as to allow the vehicle movement to be controlled with an adequate response and stability for practical purposes even without directly detecting or accurately estimating the frictional coefficient between the road surface and the tire. A tire slip angle is computed from a yaw rate, a vehicle speed, a vehicle body slip angle and a road wheel steering angle; a cornering force is computed from a dynamic model of the tire by taking into account at least the tire slip angle; and a hypothetical vehicle body slip angle is computed from the cornering force, the vehicle speed and the yaw rate; the tire slip angle being computed by feeding back the hypothetical vehicle body slip angle in a recursive manner.

    摘要翻译: 提供了一种用于在车辆运动控制中计算车体滑动角度的方法和系统,以便即使在不直接检测或精确地估计道路之间的摩擦系数的情况下,也可以以适当的响应和稳定性来控制车辆运动 表面和轮胎。 从偏航率,车速,车体滑移角和车轮转向角计算轮胎滑移角; 通过考虑至少轮胎滑移角度,从轮胎的动态模型计算出转弯力; 并且从转弯力,车速和横摆率计算出假想的车体滑移角; 通过以递归的方式反馈假想车身滑移角来计算轮胎滑移角。

    Suspension system for steered wheels in vehicle
    16.
    发明授权
    Suspension system for steered wheels in vehicle 失效
    车辆转向轮悬架系统

    公开(公告)号:US5896941A

    公开(公告)日:1999-04-27

    申请号:US747089

    申请日:1996-11-13

    IPC分类号: B60G3/18 B60G3/20 B60K17/16

    CPC分类号: B60G3/20

    摘要: A suspension system for the steered wheels of a vehicle include knuckles, the lower portions of which are pivotally supported at tip ends of a lower arm and a radius rod through two ball joints. Each of the steered wheels is steered about a phantom king pin axis passing through an intersection a of extensions of the lower arm and the radius rod so that, during clockwise turning of the vehicle, the point a of an outer wheel during turning of the vehicle is little moved, but the point a of an inner wheel during turning of the vehicle is moved inwards of a vehicle body through a distance .alpha..sub.R whereby a distance between a ground point of the inner wheel and the phantom king pin axis is larger than a distance between a ground point of the outer wheel and the phantom king pin axis and, hence, left and right steering moments generated by driving forces of the left and right steered wheels are countervailed with each other, whereby the generation of unnecessary steering moments is prevented as a whole.

    摘要翻译: 用于车辆转向轮的悬挂系统包括转向节,转向节通过两个球形接头枢转地支撑在下臂的前端和半径杆上。 每个转向轮围绕幻影主销轴线转向,通过下臂和半径杆的延伸部分的相交处,使得在车辆的顺时针转动期间,在车辆转动期间外轮的点a 但是在车辆转动期间内轮的点a从车身向内移动距离αR,从而内轮的接地点和幻影主销轴之间的距离大于 外轮的地面点与幻影主销轴线之间的距离以及左右转向轮的驱动力产生的左右转向力矩相互抵消,从而防止产生不必要的转向力矩 作为一个整体。

    Drive force distribution control system for four-wheel drive motor
vehicle
    19.
    发明授权
    Drive force distribution control system for four-wheel drive motor vehicle 失效
    四轮驱动汽车驱动力分配控制系统

    公开(公告)号:US4889204A

    公开(公告)日:1989-12-26

    申请号:US259680

    申请日:1988-10-19

    IPC分类号: B60K17/348 B60K23/08

    CPC分类号: B60K23/0808

    摘要: A drive force distribution control system in a four-wheel drive motor vehicle for distributing drive forces from an engine of the motor vehicle to first and second wheels of the motor vehicle includes drive force distributing means for distributing and transmitting the drive forces to the first and second wheels, first speed detecting means for detecting a rotational speed (Nf) of the first wheel, second speed detecting means for detecting a rotational speed (Nr) of the second wheel, torque detecting means for detecting a torque (Tr) transmitted to the second wheel, and control means for controlling the drive force distributing means. The control means for calculating a slip ratio (S) of the second wheel to a road on which the motor vehicle is running based on the rotational speeds of the first and second wheels, calculating a ratio (Tr/S) between the torque (Tr) and the slip ratio (S), determining a distribution ratio between the drive forces to be distributed to the first and second wheels based on the ratio between the torque and the slip ratio, and controlling the drive force distributing means to distribute and transmit the drive forces to the first and second wheels according to the distribution ratio.

    Vehicular steering apparatus
    20.
    发明授权
    Vehicular steering apparatus 失效
    车辆转向装置

    公开(公告)号:US08640816B2

    公开(公告)日:2014-02-04

    申请号:US12957589

    申请日:2010-12-01

    申请人: Yasuji Shibahata

    发明人: Yasuji Shibahata

    IPC分类号: B62D5/04 B62D5/00

    CPC分类号: B62D5/001

    摘要: A vehicular steering apparatus includes: a road-wheel turning mechanism mechanically separated from, but electrically connected to a steering wheel; a first rotation shaft connected to the steering wheel; a second rotation shaft connected to the road-wheel turning mechanism; and a connection mechanism for interconnecting the first and second rotation shafts in such a manner that the first and second rotation shafts can rotate idle relative to each other within a range of a predetermined relative rotational angle.

    摘要翻译: 一种车辆转向装置,包括:与方向盘机械地分离但电连接的车轮转向机构; 连接到方向盘的第一旋转轴; 连接到所述车轮转向机构的第二旋转轴; 以及用于使第一和第二旋转轴互相连接的连接机构,使得第一和第二旋转轴可以在预定的相对旋转角度的范围内相对于彼此旋转空转。