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    Vehicle chassis control
    2.
    发明授权
    Vehicle chassis control 失效
    车辆底盘控制

    公开(公告)号：US5696677A

    公开(公告)日：1997-12-09

    申请号：US547084

    申请日：1995-10-23

    申请人： Eldon Gerrald Leaphart ,  Edward John Bedner ,  Richard Charles Swortzel ,  Albert Victor Fratini, Jr. ,  Kamal Naif Majeed

    发明人： Eldon Gerrald Leaphart ,  Edward John Bedner ,  Richard Charles Swortzel ,  Albert Victor Fratini, Jr. ,  Kamal Naif Majeed

    IPC分类号： B60G17/018 ,  B60G17/0195 ,  B60T8/172 ,  B60T8/173 ,  B60T8/32 ,  B60T8/42 ,  B60K41/00

    CPC分类号： B60G17/018 ,  B60G17/0195 ,  B60T8/172 ,  B60T8/173 ,  B60T8/3285 ,  B60T8/4266 ,  B60G2600/184 ,  B60T2240/06

    摘要： A vehicle chassis system control according to the steps of: determining relative velocity between a corner of a vehicle body and a vehicle wheel responsive to a sensor signal from one of: (i) a relative position sensor mounted between the vehicle body corner and the vehicle wheel and (ii) a wheel rotational velocity sensor mounted to the wheel; estimating, responsive to the sensor signal, a body acceleration signal indicative of a vertical acceleration of the corner of the vehicle body; estimating, responsive to the sensor signal, a wheel acceleration signal indicative of a vertical acceleration of the vehicle wheel; estimating a dynamic normal force between the wheel and a road surface responsive to the estimated body and wheel accelerations; and providing the estimated normal dynamic force to a chassis system controller, wherein a chassis system actuator is controlled by a control command determined responsive to the estimated dynamic normal force.

    摘要翻译： 根据以下步骤的车辆底盘系统控制：响应于传感器信号，确定车身的角部与车辆车轮之间的相对速度，其中：以下之一：（i）安装在车身拐角和车辆之间的相对位置传感器 轮和（ii）安装到车轮的轮转速传感器; 响应于所述传感器信号，估计指示所述车身拐角的垂直加速度的身体加速度信号; 响应于所述传感器信号估计指示所述车轮的垂直加速度的车轮加速度信号; 响应于估计的身体和车轮加速度估计车轮和路面之间的动态法向力; 以及向所述机箱系统控制器提供估计的正常动态力，其中，通过响应于估计的动态法向力确定的控制命令来控制底盘系统致动器。

    Vehicle braking apparatus having understeer correction with axle selection
    3.
    发明授权
    Vehicle braking apparatus having understeer correction with axle selection 有权
    车辆制动装置具有轴选择不正确

    公开(公告)号：US06481806B1

    公开(公告)日：2002-11-19

    申请号：US09702536

    申请日：2000-10-31

    申请人： Eric Edward Krueger ,  Raymond Kurt Schubert ,  Steven Paul Loudon ,  Eldon Gerrald Leaphart

    发明人： Eric Edward Krueger ,  Raymond Kurt Schubert ,  Steven Paul Loudon ,  Eldon Gerrald Leaphart

    IPC分类号： B60T824

    CPC分类号： B60T8/241 ,  B60T8/1755 ,  B60T8/245 ,  B60T8/246 ,  B60T2230/03 ,  B60T2260/06

    摘要： A vehicle brake control providing understeer correction through an increase in differential brake pressure favoring the inside wheel applies the increase, in the absence of anti-lock braking activity, across the rear wheels unless one or more sensors indicates a likely low traction condition on the inside rear wheel, in which case the increase is applied to the front pair of wheels. Preferred sensors include a suspension position sensor for the inside rear wheel or other sensor derived information from a suspension control system that indicates large body roll in a turn together with forward body pitch. In the absence of a suspension control system, preferred sensors include vehicle lateral and longitudinal accelerometers indicating vehicle roll and pitch together with a steer angle sensor indicating a significant turn. An indication could also be derived from a normal force sensor on the wheel or normal force information derived from other sensors such as a tire pressure sensor.

    摘要翻译： 通过增加有利于内轮的差速制动压力来提供不足转向的车辆制动控制，在没有防抱死制动活动的情况下，跨越后轮施加增加，除非一个或多个传感器表示内侧可能的低牵引条件 后轮，在这种情况下，增加应用于前一对车轮。 优选的传感器包括用于内部后轮的悬架位置传感器或来自悬架控制系统的其他传感器的信息，其指示与前身体节距一起转动的大身体卷。 在没有悬挂控制系统的情况下，优选的传感器包括车辆侧向和纵向加速度计，其指示车辆滚动和俯仰以及指示显着转弯的转向角传感器。 还可以从车轮上的法向力传感器或从诸如轮胎压力传感器的其它传感器导出的法向力信息导出指示。

    Apparatus for determining steer angle of a motor vehicle
    4.
    发明授权
    Apparatus for determining steer angle of a motor vehicle 失效
    用于确定机动车辆的转向角的装置

    公开(公告)号：US06498971B2

    公开(公告)日：2002-12-24

    申请号：US09805487

    申请日：2001-03-13

    申请人： Eldon Gerrald Leaphart

    发明人： Eldon Gerrald Leaphart

    IPC分类号： G06G776

    CPC分类号： B62D15/02 ,  B60G2400/0523 ,  B60G2400/104 ,  B60G2400/208 ,  B60G2400/412 ,  B60G2400/4122 ,  B60G2401/26 ,  B60G2800/22 ,  B60G2800/24 ,  B60G2800/7022 ,  B60G2800/91 ,  B60G2800/922 ,  B60G2800/94

    摘要： A steering angle sensor providing an output signal indicating relative position within a full rotation, such as a relative dual track steering sensor, provides a signal to a digital processor coupled to a non-volatile memory for storing retained values of a centered vehicle steer angle, a rotation count and a mounting bias angle. The processor derives three test steer angle values utilizing, respectively, (1) the retained rotation count, (2) one greater than the retained rotation count and (3) one less than the retained rotation count and chooses as an initialized steer angle one of the three test steer angles that differs from the retained value of a centered vehicle steer angle by less than a first calibration value. If such an initialized steer angle is found, the processor verifies that the initialized steer angle differs from an estimated steer angle derived in response to signals from the vehicle yaw rate sensor and lateral acceleration sensor by less than a second calibration value less than the first calibration value and, if so, accepts the verified initialized steer angle as the centered vehicle steer angle. If not, the processor preferably reverts to a full recalibration without use of the retained values in the non-volatile memory. Preferably, the first calibrated value is 180 rotational degrees, so that the initialized steering angle value may be assumed to be within the same rotation as the centered angle.

    摘要翻译： 提供指示全旋转内的相对位置（例如相对双轨道转向传感器）的输出信号的转向角传感器向耦合到非易失性存储器的数字处理器提供信号，用于存储中心车辆转向角的保持值， 旋转计数和安装偏置角度。 处理器分别使用（1）保持的旋转计数，（2）大于保持的旋转计数的一个（3）比保留的旋转计数小一个，并选择作为初始化转向角之一的三个测试转向角度值 三个测试转向角与中心车辆转向角的保持值不同于第一校准值。 如果发现这种初始化的转向角，则处理器验证初始化的转向角与根据来自车辆横摆角速度传感器和横向加速度传感器的信号导出的估计转向角小于小于第一校准的第二校准值 值，如果是，则接受经验证的初始化转向角作为中心车辆转向角。 如果不是，则处理器优选地返回到完全重新校准，而不使用非易失性存储器中的保留值。 优选地，第一校准值为180度旋转角度，使得初始化的转向角度值可以被假定为与中心角度相同的旋转。

    Vehicle suspension control with stability in turn enhancement
    6.
    发明授权
    Vehicle suspension control with stability in turn enhancement 失效
    车辆悬架控制具有稳定性反过来增强

    公开(公告)号：US06219602B1

    公开(公告)日：2001-04-17

    申请号：US09535702

    申请日：2000-03-27

    申请人： Scott Wilson Badenoch ,  David Andrew Shal ,  Albert Victor Fratini, Jr. ,  Karen Marie Connair ,  Eldon Gerrald Leaphart ,  Raymond Kurt Schubert

    发明人： Scott Wilson Badenoch ,  David Andrew Shal ,  Albert Victor Fratini, Jr. ,  Karen Marie Connair ,  Eldon Gerrald Leaphart ,  Raymond Kurt Schubert

    IPC分类号： B60G1700

    CPC分类号： B60G17/016 ,  B60G2400/104 ,  B60G2400/202 ,  B60G2400/204 ,  B60G2400/252 ,  B60G2400/41 ,  B60G2500/10 ,  B60G2600/184 ,  B60G2800/24 ,  B60G2800/912 ,  B60G2800/9122

    摘要： A vehicle suspension control includes a vehicle body control responsive to body/wheel velocity at the corners of the vehicle body to derive a demand force command for dampers at each corner of the vehicle body for vehicle body control and applies each of the derived demand force commands to its respective damper only when a comparison of the direction of the demand force command with the sensed relative velocity of the damper indicates that a force corresponding to the demand force command can be effectively exerted by the damper. But the suspension control also includes a vehicle stability control responsive to an indicated vehicle lateral acceleration in a turn to determine, independently of the vehicle body control, a stability compression damping command for the suspension dampers on the side of the vehicle opposite the direction of the lateral acceleration and a stability rebound damping command for the suspension dampers on the side of the vehicle in the direction of the lateral acceleration. While the lateral acceleration is sensed, the vehicle stability control applies the stability compression damping command to the suspension dampers on the side of the vehicle opposite the direction of the lateral acceleration and the stability rebound damping command to the suspension dampers on the side of the vehicle in the direction of the lateral acceleration, without regard for the direction of demand force for any of the suspension dampers. The resulting stiffening of the suspension on the outside of the turning vehicle in compression and on the inside of the turning vehicle during rebound helps keep the tires of the vehicle firmly in contact with the road surface in spite of road surface irregularities.

    摘要翻译： 车辆悬架控制包括响应于车体角落处的车身/车轮速度的车体控制，以得出用于车身控制的车身的每个拐角处的阻尼器的需求力指令，并且将每个推导的需求力指令 只有当需求力指令的方向与感测到的阻尼器的相对速度的比较指示能够通过阻尼器有效地施加与需求力指令相对应的力时，才能到其相应的阻尼器。 但是，悬架控制还包括响应于转弯中指示的车辆横向加速度的车辆稳定性控制，以独立于车体控制来确定用于与车辆侧向方向相反的车辆侧方的悬架阻尼器的稳定压缩阻尼命令 侧向加速度和稳定性回弹阻尼指令，用于在侧向加速度方向上的车辆侧面上的悬架阻尼器。 当感测到横向加速度时，车辆稳定性控制将稳定性压缩阻尼指令应用于与车辆侧面相反的横向加速度方向上的悬架阻尼器和对车辆侧面的悬挂阻尼器的稳定性回弹阻尼指令 在侧向加速度的方向上，不考虑任何悬挂阻尼器的需求力的方向。 在回转期间，在转向车辆的外部的压缩和车内的悬架的所得到的加强有助于保持车辆的轮胎与道路表面接触牢固，尽管路面不规则。