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    Vehicle chassis control
    1.
    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。

    Regenerative braking method
    3.
    发明授权
    Regenerative braking method 失效
    再生制动方法

    公开(公告)号：US5707115A

    公开(公告)日：1998-01-13

    申请号：US723442

    申请日：1996-10-07

    申请人： Mark Olen Bodie ,  Kamal Naif Majeed

    发明人： Mark Olen Bodie ,  Kamal Naif Majeed

    IPC分类号： B60T13/58 ,  B60T13/74

    CPC分类号： B60T8/267 ,  B60L15/2036 ,  B60L7/18 ,  B60L7/26 ,  B60T13/586 ,  B60T13/74 ,  B60L2240/12 ,  B60L2240/16 ,  B60L2240/18 ,  B60L2240/24 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/461 ,  B60L2240/463 ,  B60L2240/465 ,  B60T2270/602 ,  Y02T10/645 ,  Y02T10/72 ,  Y02T10/7275

    摘要： In a vehicle with a first set of first and second wheels coupled to an electric drive system capable of providing regenerative braking and a second set of third and fourth wheels, wherein the vehicle dynamically adjusts a brake proportioning between the first and second sets responsive to a determined wheel speed difference between the first and second sets, the improvement comprising a regenerative braking control method according to the steps of: measuring first, second, third and fourth speeds of the first, second, third and fourth wheels; for each wheel of one of the first and second sets, determining a set-off value inversely relational to a commanded brake torque and a wheel deceleration; determining modified wheel speeds for each wheel of said one of the first and second sets responsive to the wheel speeds and the set-off values; and determining the wheel speed difference between the first and second sets responsive to the modified wheels speeds of said one of the first and second sets and the wheel speeds of the other of the first and second sets, wherein the dynamic adjusting of brake proportioning between the first and second sets increases brake torque load on the first and second wheels, increasing an amount of braking achieved regeneratively.

    摘要翻译： 在具有耦合到能够提供再生制动的电驱动系统的第一组第一和第二轮的车辆中，以及第二组第三和第四车轮，其中，响应于一个第一和第二车轮，车辆动态地调节第一和第二组之间的制动比例 确定第一和第二组之间的车轮速度差，改进包括根据以下步骤的再生制动控制方法：测量第一，第二，第三和第四车轮的第一，第二，第三和第四速度; 对于所述第一和第二组中的一个的每个车轮，确定与指令的制动转矩和车轮减速度成反比关系的抵消值; 响应于所述车轮速度和所述抵消值来确定所述第一和第二组中的所述一个车轮的每个车轮的修改车轮速度; 以及响应于所述第一和第二组中的所述一个的所述修改的车轮速度和所述第一和第二组中的另一个的车轮速度来确定所述第一组和第二组之间的车轮速度差，其中，所述第一组和第二组之间的制动比例的动态调节 第一和第二组增加第一和第二轮上的制动转矩负载，增加再生实现的制动量。

    Brake system control method responsive to measured vehicle acceleration
    7.
    发明授权
    Brake system control method responsive to measured vehicle acceleration 失效
    制动系统控制方法响应测量的车辆加速度

    公开(公告)号：US6125319A

    公开(公告)日：2000-09-26

    申请号：US134951

    申请日：1998-08-17

    申请人： Aleksander Boguslaw Hac ,  John Francis Hoying ,  Kamal Naif Majeed ,  Hsien Heng Chen ,  Joachim Busshardt

    发明人： Aleksander Boguslaw Hac ,  John Francis Hoying ,  Kamal Naif Majeed ,  Hsien Heng Chen ,  Joachim Busshardt

    IPC分类号： B60T8/1763 ,  B60T8/32

    CPC分类号： B60T8/17636 ,  B60T2210/12

    摘要： A brake system control method, comprising the steps of: determining a maximum acceleration of a vehicle on a high coefficient of adhesion road surface; measuring an acceleration of the vehicle; determining a ratio between the measured acceleration of the vehicle and the maximum acceleration of the vehicle on the high coefficient of adhesion road surface; responsive to the ratio, determining a signal indicative of present coefficient of adhesion; determining a brake actuator command responsive to the signal; and providing the brake actuator command to a brake actuator, wherein an accurate estimation of coefficient of friction between the vehicle wheels and the road surface is used in the brake system control.

    摘要翻译： 一种制动系统控制方法，包括以下步骤：在高粘附路面系数上确定车辆的最大加速度; 测量车辆的加速度; 确定车辆的测量加速度与车辆在高粘性路面系数上的最大加速度之间的比率; 响应于所述比率，确定指示当前粘附系数的信号; 响应于所述信号确定制动致动器指令; 并且向制动器致动器提供制动致动器命令，其中在制动系统控制中使用车轮与路面之间的摩擦系数的精确估计。