Real-time allocation of actuator torque in a vehicle
    1.
    发明授权
    Real-time allocation of actuator torque in a vehicle 有权
    在车辆中实时分配执行器扭矩

    公开(公告)号:US08655528B2

    公开(公告)日:2014-02-18

    申请号:US13017117

    申请日:2011-01-31

    IPC分类号: G06F19/00

    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。

    REAL-TIME ALLOCATION OF ACTUATOR TORQUE IN A VEHICLE
    3.
    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

    IPC分类号: B60L15/20 G06F19/00

    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。

    FAULT ISOLATION IN ELECTRONIC RETURNLESS FUEL SYSTEM
    8.
    发明申请
    FAULT ISOLATION IN ELECTRONIC RETURNLESS FUEL SYSTEM 有权
    电子回收燃料系统中的故障分离

    公开(公告)号:US20130213123A1

    公开(公告)日:2013-08-22

    申请号:US13400216

    申请日:2012-02-20

    IPC分类号: G01M15/05

    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。

    Linear and non-linear identification of the longitudinal tire-road friction coefficient
    9.
    发明授权
    Linear and non-linear identification of the longitudinal tire-road friction coefficient 有权
    纵向轮胎路面摩擦系数的线性和非线性识别

    公开(公告)号:US08498775B2

    公开(公告)日:2013-07-30

    申请号:US12987483

    申请日:2011-01-10

    IPC分类号: G01N19/02 B60W40/06

    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。

    Co-Operative On-Board and Off-Board Component and System Diagnosis and Prognosis
    10.
    发明申请
    Co-Operative On-Board and Off-Board Component and System Diagnosis and Prognosis 有权
    合作的车载和非车载组件和系统诊断和预后

    公开(公告)号:US20130184929A1

    公开(公告)日:2013-07-18

    申请号:US13351473

    申请日:2012-01-17

    IPC分类号: G06F7/00

    CPC分类号: G05B23/0283

    摘要: A cooperative diagnostic and prognosis system for generating a prognosis of at least one component in a vehicle. An in-vehicle diagnostic unit determines a diagnostic signature of the component each time an occurrence of a condition is triggered and transmits the diagnostic signature to an off-board diagnostic unit. The off-vehicle diagnostic unit determines a SOH of the component and a rate-of-change in the SOH of the component. The off-vehicle diagnostic unit determines whether the rate-of-change in the SOH is greater than a threshold. The off-vehicle diagnostic unit requests additional information from the vehicle in response to the rate-of-change in the SOH being greater than the threshold. The additional information relating to operating parameter data associated with the component. The off-vehicle diagnostic unit receives the requested information and predicts a time-to-failure of the component.

    摘要翻译: 一种用于产生车辆中至少一个部件的预后的协作诊断和预后系统。 车载诊断单元在每次触发条件的发生时确定组件的诊断签名,并将诊断签名发送到车外诊断单元。 离车诊断单元确定组件的SOH和组件的SOH中的变化率。 离车诊断单元确定SOH中的变化率是否大于阈值。 响应于SOH中的变化率大于阈值,车外诊断单元从车辆请求附加信息。 与组件相关的操作参数数据的附加信息。 离车诊断单元接收所请求的信息并预测组件的故障时间。