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    Friction-based state of health indicator for an electric power steering system
    11.
    发明授权
    Friction-based state of health indicator for an electric power steering system 有权
    用于电动助力转向系统的基于摩擦的健康状态指示器

    公开(公告)号：US08634986B2

    公开(公告)日：2014-01-21

    申请号：US13075263

    申请日：2011-03-30

    申请人： Youssef A. Ghoneim

    发明人： Youssef A. Ghoneim

    IPC分类号： B62D6/00

    CPC分类号： B62D5/0481 ,  B62D6/008

    摘要： A method for determining a state of health (SOH) value for an electric power steering (EPS) system in a vehicle includes estimating a first Self-Aligning Torque (SAT) value using a tire dynamics model, which includes modeled dynamics in the linear region of a lateral force acting on the vehicle tires. The method also includes estimating a second SAT value using an extended state observer and nominal parameters for the EPS system, and calculating a variance between the first and second SAT values. The controller monitors a progression of the calculated variance over a calibrated interval using the controller to thereby determine the SOH value, and automatically executes a control action using the SOH value. An EPS system for a vehicle includes a steering wheel, torque and angle sensors, a rack and pinion assembly, a steering motor, and the controller. A vehicle is also disclosed having the same controller.

    摘要翻译： 用于确定车辆中的电动助力转向系统（EPS）系统的健康状态（SOH）值的方法包括使用轮胎动力学模型估计第一自对准转矩（SAT）值，所述轮胎动力学模型包括线性区域中的建模动力学 作用在车辆轮胎上的横向力。 该方法还包括使用扩展状态观察器和EPS系统的标称参数来估计第二SAT值，以及计算第一和第二SAT值之间的方差。 控制器使用控制器在校准的间隔上监视所计算的方差的进展，从而确定SOH值，并且使用SOH值自动执行控制动作。 用于车辆的EPS系统包括方向盘，扭矩和角度传感器，齿条和小齿轮组件，转向马达和控制器。 还公开了具有相同控制器的车辆。

    REAL-TIME ALLOCATION OF ACTUATOR TORQUE IN A VEHICLE
    14.
    发明申请
    REAL-TIME ALLOCATION OF ACTUATOR TORQUE IN A VEHICLE 有权
    车辆执行器扭矩的实时分配

    公开(公告)号：US20120197469A1

    公开(公告)日：2012-08-02

    申请号：US13017117

    申请日：2011-01-31

    申请人： Youssef A. Ghoneim ,  Shih-Ken Chen ,  Valery Pylypchuk ,  Nikolai K. Moshchuk ,  Bakhtiar Brian Litkouhi

    发明人： Youssef A. Ghoneim ,  Shih-Ken Chen ,  Valery Pylypchuk ,  Nikolai K. Moshchuk ,  Bakhtiar Brian Litkouhi

    IPC分类号： B60L15/20 ,  G06F19/00

    CPC分类号： B60W10/08 ,  B60K7/0007 ,  B60K2007/0092 ,  B60W10/184 ,  B60W30/18145 ,  B60W50/0098 ,  B60W50/023 ,  B60W2050/0031 ,  B60W2720/403 ,  B60W2720/406 ,  Y02T10/7258

    摘要： A method for allocating forces among the corners of a vehicle having a redundant actuator suite includes determining a set of desired forces at the center of gravity of the vehicle, and allocating the set of desired forces among the corners of the vehicle as virtual control commands using a controller. The method also includes mapping the virtual control commands at the corners to actual or true control commands at the corners, and controlling a plurality of actuators at the corners using the actual or true control commands. The actuators may include friction brakes and wheel motors. Mapping the virtual control commands may include using a Least Squares formulation. Control of the actuators may be prioritized with respect to each other using weighting matrices. A vehicle includes a controller having actuators and a controller configured for executing the above method.

    摘要翻译： 一种用于在具有冗余致动器套件的车辆的角部之间分配力的方法包括确定在车辆重心处的一组期望的力，并且在车辆的角部之间分配所需的力集合作为虚拟控制命令，使用 一个控制器 该方法还包括将角落处的虚拟控制命令映射到角落处的实际或真实控制命令，并且使用实际或真实的控制命令来控制拐角处的多个致动器。 致动器可以包括摩擦制动器和轮式电动机。 映射虚拟控制命令可以包括使用最小二乘公式。 致动器的控制可以使用加权矩阵相对于彼此来优先。 车辆包括具有致动器的控制器和被配置为执行上述方法的控制器。

    LINEAR AND NON-LINEAR IDENTIFICATION OF THE LONGITUDINAL TIRE-ROAD FRICTION COEFFICIENT
    15.
    发明申请
    LINEAR AND NON-LINEAR IDENTIFICATION OF THE LONGITUDINAL TIRE-ROAD FRICTION COEFFICIENT 有权
    长期轮胎道路摩擦系数的线性和非线性识别

    公开(公告)号：US20120179327A1

    公开(公告)日：2012-07-12

    申请号：US12987483

    申请日：2011-01-10

    申请人： Simon Yngve ,  Youssef A. Ghoneim

    发明人： Simon Yngve ,  Youssef A. Ghoneim

    IPC分类号： G06F19/00

    CPC分类号： B60W40/064 ,  B60W40/12 ,  B60W2520/105 ,  B60W2530/10 ,  B60W2530/20 ,  B60W2550/148

    摘要： A method of estimating a tire-road friction coefficient includes determining when the slope of a tire characteristic curve relating a utilized longitudinal friction of a tire to longitudinal slip of the tire is linear and non-linear. When the slope of the tire characteristic curve is linear, then the tire-road friction coefficient is estimated by correlating the slope of the tire characteristic curve to the tire-road friction coefficient. When the slope of the tire characteristic curve is non-linear, indicating that the tire is near or at saturation, then the tire-road friction coefficient is estimated by calculating a current utilized longitudinal friction of the tire.

    摘要翻译： 估计轮胎路面摩擦系数的方法包括确定轮胎特性曲线的斜率是否与所使用的轮胎的纵向摩擦相关的轮胎的纵向滑动是线性的和非线性的。 当轮胎特性曲线的斜率为线性时，通过将轮胎特性曲线的斜率与轮胎路面摩擦系数相关联来估计轮胎路面摩擦系数。 当轮胎特性曲线的斜率为非线性时，表示轮胎接近或处于饱和状态，则通过计算轮胎的当前利用的纵向摩擦来估计轮胎路面摩擦系数。

    Wheel understeer speed control
    17.
    发明授权
    Wheel understeer speed control 失效
    车轮转向不足转速控制

    公开(公告)号：US5258912A

    公开(公告)日：1993-11-02

    申请号：US720071

    申请日：1991-06-24

    申请人： Youssef A. Ghoneim ,  William Chin-Woei Lin

    发明人： Youssef A. Ghoneim ,  William Chin-Woei Lin

    IPC分类号： B60L15/20 ,  B60T8/172 ,  B60T8/1755 ,  B60T8/24 ,  B60T8/42 ,  B60T8/48 ,  B62D11/02 ,  B62D11/08 ,  H02P5/46

    CPC分类号： B60T8/246 ,  B60L15/2036 ,  B60T8/172 ,  B60T8/1755 ,  B60T8/4266 ,  B60T8/489 ,  B62D11/02 ,  B62D11/08 ,  B60T2201/16 ,  Y02T10/645 ,  Y02T10/7275

    摘要： An apparatus provides improved vehicle handling during turning maneuvers by providing control of vehicle understeer. The understeer control includes determining a desired turning radius for the vehicle, a corresponding ideal outer to inner wheel speed ratio. A closed loop torque command is determined in proportion to the difference between the ideal wheel speed ratio and the actual wheel speed ratio. The closed loop torque command is used in conjunction with an open loop torque command responsive to operator power demand to provide wheel speed control in a manner to maintain the desired vehicle understeer characteristics.

    摘要翻译： 一种装置通过提供车辆转向不足的控制来提供改进的车辆操纵处理。 不足转向控制包括确定车辆的期望的转弯半径，对应的理想的外轮到内轮的速度比。 与理想车轮速比和实际车轮速比之间的差成比例地确定闭环转矩指令。 响应于操作者的功率需求，闭环扭矩指令与开环扭矩指令结合使用，以维持所需的车辆不足转向特性的方式提供车轮速度控制。

    Electronic control of tractive force proportioning for a class of four wheel drive vehicles
    18.
    发明授权
    Electronic control of tractive force proportioning for a class of four wheel drive vehicles 失效
    一类四轮驱动车辆的牵引力配比的电子控制

    公开(公告)号：US5164903A

    公开(公告)日：1992-11-17

    申请号：US578372

    申请日：1990-09-07

    申请人： William C. Lin ,  Youssef A. Ghoneim

    发明人： William C. Lin ,  Youssef A. Ghoneim

    IPC分类号： B60K28/16

    CPC分类号： B60K28/165

    摘要： A control method for four wheel drive vehicles in which the front and rear wheels are not mechanically linked controls the drive torque to the vehicle wheels in proportion to vehicle loading and road surface friction coefficients in response to front and rear wheel speeds and front and rear wheel accelerations thereby reducing wheel spin.

    摘要翻译： 用于四轮驱动车辆的控制方法，其中前轮和后轮不机械连接，其响应于前轮和后轮的速度与车辆负载和路面摩擦系数成比例地控制到车轮的驱动扭矩，并且前轮和后轮 加速，从而减少车轮旋转。

    Fault isolation in electronic returnless fuel system
    19.
    发明授权
    Fault isolation in electronic returnless fuel system 有权
    电子无返回燃油系统故障隔离

    公开(公告)号：US08770015B2

    公开(公告)日：2014-07-08

    申请号：US13400216

    申请日：2012-02-20

    申请人： Youssef A. Ghoneim

    发明人： Youssef A. Ghoneim

    IPC分类号： G01M15/05

    CPC分类号： F02D41/22 ,  F02D41/3082 ,  F02D2041/2058 ,  F02D2041/224 ,  F02D2041/225 ,  F02D2200/0602 ,  F02M37/08

    摘要： A method for detecting and isolating an actual fault in a fuel delivery system having a fuel pump and a fuel pump motor, includes monitoring fuel pressure, pump current, and pump voltage. Each of a plurality of fault triggers are designated as one of flagged and un-flagged based on at least one of the fuel pressure, the pump current and the pump voltage. The actual fault in the fuel delivery system is isolated from a plurality of possible faults when a condition respective to one of the possible faults is satisfied based on at least one of the plurality of fault triggers designated as flagged and un-flagged.

    摘要翻译： 一种用于检测和隔离具有燃料泵和燃料泵电动机的燃料输送系统中的实际故障的方法，包括监测燃料压力，泵电流和泵电压。 基于燃料压力，泵浦电流和泵浦电压中的至少一个，将多个故障触发中的每一个指定为标记和未标记的一个。 当基于指定为被标记和未被标记的多个故障触发中的至少一个故障触发时，当满足可能故障之一的条件时，燃料输送系统中的实际故障与多个可能故障隔离。