Co-Operative On-Board and Off-Board Component and System Diagnosis and Prognosis
    1.
    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。

    Method and apparatus to monitor an electric motor in a returnless fuel systems
    2.
    发明授权
    Method and apparatus to monitor an electric motor in a returnless fuel systems 有权
    在无回油燃料系统中监测电动机的方法和装置

    公开(公告)号:US09032935B2

    公开(公告)日:2015-05-19

    申请号:US13288073

    申请日:2011-11-03

    摘要: A method for monitoring the fuel pump includes estimating a pump speed and a nominal pump motor current in relation to a pump motor control signal and a fuel pressure. An armature resistance and a back-emf constant for the electric motor are determined corresponding to the estimated pump speed, a monitored pump motor current, and the pump motor control signal. A nominal armature resistance and a nominal back-emf constant for the electric motor are adjusted in relation to a pump motor temperature. Residuals are calculated based upon the adjusted nominal armature resistance, the adjusted nominal back-emf constant for the electric motor, the estimated armature resistance and the estimated back-emf constant for the electric motor. The residuals are compared with corresponding thresholds. A fault in the electric motor is detected based upon the comparisons of the residuals with the corresponding thresholds.

    摘要翻译: 用于监测燃料泵的方法包括相对于泵电动机控制信号和燃料压力估计泵速度和标称泵电动机电流。 根据估计的泵速,监测的泵电动机电流和泵电机控制信号来确定电动机的电枢电阻和反电动势常数。 相对于泵电机温度调节电动机的标称电枢电阻和标称反电动势常数。 剩余量是根据经调整的标称电枢电阻,电动机调整的额定反电动势常数,电动机估计的电枢电阻和估计的反电动势常数来计算的。 将残差与相应的阈值进行比较。 基于残差与相应阈值的比较来检测电动机的故障。

    METHOD AND APPARATUS TO MONITOR AN ELECTRIC MOTOR IN A RETURNLESS FUEL SYSTEM
    4.
    发明申请
    METHOD AND APPARATUS TO MONITOR AN ELECTRIC MOTOR IN A RETURNLESS FUEL SYSTEM 有权
    用于监测回收燃料系统中的电动机的方法和装置

    公开(公告)号:US20130112173A1

    公开(公告)日:2013-05-09

    申请号:US13288073

    申请日:2011-11-03

    IPC分类号: F04B49/06 F02M37/08

    摘要: An electric motor is configured to provide mechanical power to a fuel pump. A method for monitoring the fuel pump includes estimating a pump speed and a nominal pump motor current in relation to a pump motor control signal and a fuel pressure. An armature resistance and a back-emf constant for the electric motor are determined corresponding to the estimated pump speed, a monitored pump motor current, and the pump motor control signal. A nominal armature resistance and a nominal back-emf constant for the electric motor are adjusted in relation to a pump motor temperature. A plurality of residuals are calculated based upon the adjusted nominal armature resistance, the adjusted nominal back-emf constant for the electric motor, the estimated armature resistance and the estimated back-emf constant for the electric motor. The residuals are compared with corresponding thresholds. A fault in the electric motor is detected based upon the comparisons of the residuals with the corresponding thresholds.

    摘要翻译: 电动机构造成向燃料泵提供机械动力。 用于监测燃料泵的方法包括相对于泵电动机控制信号和燃料压力估计泵速度和标称泵电动机电流。 根据估计的泵速,监测的泵电动机电流和泵电机控制信号来确定电动机的电枢电阻和反电动势常数。 相对于泵电机温度调节电动机的标称电枢电阻和标称反电动势常数。 基于经调整的标称电枢电阻,电动机的调整的额定反向电动势,估计的电枢电阻和电动机的估计反电动势常数来计算多个残差。 将残差与相应的阈值进行比较。 基于残差与相应阈值的比较来检测电动机的故障。

    Sensors bias detection for electronic returnless fuel system
    5.
    发明授权
    Sensors bias detection for electronic returnless fuel system 有权
    用于电子无返回燃料系统的传感器偏置检测

    公开(公告)号:US08775052B2

    公开(公告)日:2014-07-08

    申请号:US13326385

    申请日:2011-12-15

    IPC分类号: G06F19/00

    摘要: A method for isolating an actual sensor bias in a fuel delivery system having a fuel pump includes monitoring first, second and third fuel pump parameters, detecting first and second fuel pump sensor biases based on the monitored first, second and third fuel pump parameters, modeling a fourth fuel pump modeled parameter based on the monitored second and third fuel pump parameters, and isolating the actual sensor bias in one of the detected first and second fuel pump biases based on the monitored third fuel pump parameter and the modeled fourth fuel pump modeled parameter.

    摘要翻译: 用于隔离具有燃料泵的燃料输送系统中的实际传感器偏压的方法包括监测第一,第二和第三燃料泵参数,基于所监测的第一,第二和第三燃料泵参数来检测第一和第二燃料泵传感器偏差,建模 基于所监测的第二和第三燃料泵参数的第四燃料泵建模参数,以及基于所监测的第三燃料泵参数和所建模的第四燃料泵建模参数来隔离所检测的第一和第二燃料泵偏压之一中的实际传感器偏压 。

    Rear collision warning system
    6.
    发明申请
    Rear collision warning system 审中-公开
    后碰撞预警系统

    公开(公告)号:US20070296564A1

    公开(公告)日:2007-12-27

    申请号:US11475755

    申请日:2006-06-27

    IPC分类号: B60Q1/00

    CPC分类号: B60Q1/525 G08G1/162

    摘要: A control system for warning a following vehicle of a potential collision with a leading vehicle. The leading vehicle includes a detection system for detecting the presence and velocity of the following vehicle. The control system determines a desired distance between the leading vehicle and the following vehicle based on the speed of the leading vehicle. The control system subtracts the desired distance from the actual distance to generate a distance error signal, and compares the distance error signal to a threshold. If the error signal is greater than the threshold, the control system may provide one or more operations, such as flashing hazard lights to warn the following vehicle, or taking other course of action in the event of an imminent collision, such as pre-tensioning seat belts and closing windows of the leading vehicle.

    摘要翻译: 一种用于警告与前方车辆发生潜在碰撞的跟踪车辆的控制系统。 领先的车辆包括用于检测后续车辆的存在和速度的检测系统。 控制系统基于前方车辆的速度来确定前方车辆和后续车辆之间的期望距离。 控制系统从实际距离中减去所需的距离以产生距离误差信号,并将距离误差信号与阈值进行比较。 如果误差信号大于阈值,则控制系统可以提供一个或多个操作,例如闪烁的危险灯以警告以下车辆,或者在紧急碰撞的情况下采取其他行动方案,例如预张紧 主要车辆的安全带和关闭窗。

    FAULT ISOLATION IN ELECTRONIC RETURNLESS FUEL SYSTEM
    7.
    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
    8.
    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。

    Vehicle traction control system
    10.
    发明授权
    Vehicle traction control system 失效
    车辆牵引力控制系统

    公开(公告)号:US5025882A

    公开(公告)日:1991-06-25

    申请号:US467581

    申请日:1990-01-19

    IPC分类号: B60T8/175

    CPC分类号: B60T8/175

    摘要: A vehicle acceleration wheel slip control system monitors wheel slip and when a wheel slip condition becomes excessive as wheel slip increases during vehicle acceleration, engine torque output is initially reduced in accord with the rate of change in wheel slip. This derivative adjustment produces a significant correction to the engine torque output before the slip condition becomes very large. Thereafter, when the slip condition represents recovery from the excessive slip condition, the engine torque output is controlled in accord with the error in wheel slip from a desired value. This proportional adjustment maintains a desired slip value while maintaining stable acceleration slip control.

    摘要翻译: 车辆加速车轮滑移控制系统监测车轮滑移,并且当车辆加速期间车轮滑移增加时车轮滑动状况变得过大时,发动机扭矩输出最初根据车轮滑移的变化率而减小。 在滑移条件变得非常大之前,该微分调整对发动机转矩输出产生显着的校正。 此后,当滑动状态表示从过度滑动状态恢复时,根据期望值来控制发动机转矩输出与车轮滑移中的误差一致。 该比例调整在保持稳定的加速滑移控制的同时保持期望的滑移值。