公开(公告)号：US20120303348A1

公开(公告)日：2012-11-29

申请号：US13113835

申请日：2011-05-23

申请人： Tsai-Ching Lu ,  Yilu Zhang ,  Alejandro Nijamkin ,  David L. Allen ,  Hankyu Moon ,  Mutasim A. Salman

发明人： Tsai-Ching Lu ,  Yilu Zhang ,  Alejandro Nijamkin ,  David L. Allen ,  Hankyu Moon ,  Mutasim A. Salman

IPC分类号： G06G7/62

CPC分类号： G05B23/0235 ,  B60W50/0205 ,  B60W50/045 ,  G06F11/0739 ,  G06F11/079 ,  G06F11/3013 ,  G06F11/3093

摘要： A system and method for identifying a monitoring point in an electrical and electronic system (EES) in a vehicle. The method includes defining a network model of the EES where potential monitoring point locations in the model are identified as targets, such as nodes. The method then computes a betweenness centrality metric for each target in the model as a summation of a ratio of a total number of shortest paths between each pair of targets and a number of shortest paths that pass through the target whose betweenness centrality metric is being determined. The method identifies which of the betweenness centrality metrics are greater than a threshold that defines a minimum acceptable metric and determines which of those targets meets a predetermined model coverage. The monitoring point is selected as the target that best satisfies the minimum metric and the desired coverage.

摘要翻译： 一种用于识别车辆中电气和电子系统（EES）中的监测点的系统和方法。 该方法包括定义EES的网络模型，其中将模型中的潜在监测点位置识别为诸如节点的目标。 该方法然后将模型中的每个目标的中间性中心度量计算为每对目标之间的最短路径的总数与通过其中心中心度量被确定的目标的最短路径的数量之和的总和 。 该方法识别哪个中间中心度量大于定义最小可接受度量的阈值，并确定哪些目标满足预定的模型覆盖。 选择监测点作为最适合最小度量和所需覆盖范围的目标。

公开(公告)号：US08577663B2

公开(公告)日：2013-11-05

申请号：US13113835

申请日：2011-05-23

申请人： Tsai-Ching Lu ,  Yilu Zhang ,  Alejandro Nijamkin ,  David L. Allen ,  Hankyu Moon ,  Mutasim A. Salman

发明人： Tsai-Ching Lu ,  Yilu Zhang ,  Alejandro Nijamkin ,  David L. Allen ,  Hankyu Moon ,  Mutasim A. Salman

IPC分类号： G06F17/50

CPC分类号： G05B23/0235 ,  B60W50/0205 ,  B60W50/045 ,  G06F11/0739 ,  G06F11/079 ,  G06F11/3013 ,  G06F11/3093

摘要： A system and method for identifying a monitoring point in an electrical and electronic system (EES) in a vehicle. The method includes defining a network model of the EES where potential monitoring point locations in the model are identified as targets, such as nodes. The method then computes a betweenness centrality metric for each target in the model as a summation of a ratio of a number of shortest paths between each pair of targets in the model that pass through the target whose betweenness centrality metric is being determined to a total number of shortest paths between each pair of targets. The method identifies which of the betweenness centrality metrics are greater than a threshold that defines a minimum acceptable metric and determines which of those targets meets a predetermined model coverage. The monitoring point is selected as the target that best satisfies the minimum metric and the desired coverage.

摘要翻译： 一种用于识别车辆中电气和电子系统（EES）中的监测点的系统和方法。 该方法包括定义EES的网络模型，其中将模型中的潜在监测点位置识别为诸如节点的目标。 该方法然后计算模型中每个目标的中间性中心度量，作为模型中每对目标之间的最短路径数之和的比值，该模型中通过目标之间的最小路径的比率，该目标的中间性中心度量被确定为总数 每对目标之间的最短路径。 该方法识别哪个中间中心度量大于定义最小可接受度量的阈值，并确定哪些目标满足预定的模型覆盖。 选择监测点作为最适合最小度量和所需覆盖范围的目标。

公开(公告)号：US08849497B2

公开(公告)日：2014-09-30

申请号：US13409915

申请日：2012-03-01

申请人： Yilu Zhang ,  Mutasim A. Salman ,  Xiaofeng Mao ,  Fan Bai ,  Xinyu Du ,  Bo Yu ,  Pulak Bandyopadhyay

发明人： Yilu Zhang ,  Mutasim A. Salman ,  Xiaofeng Mao ,  Fan Bai ,  Xinyu Du ,  Bo Yu ,  Pulak Bandyopadhyay

IPC分类号： G06F7/00 ,  G06F19/00

CPC分类号： G06Q10/20 ,  G07C5/008

摘要： A method includes collecting state of health (SOH) data and usage data from a plurality of vehicles. A peer group is identified among the vehicles. A vehicle health prognosis is generated for each vehicle of the peer based on the collected SOH and usage data. The vehicles of the peer group are ranked based on the generated vehicle health prognosis and the rank is reported to an output device that is associated with each vehicle or with a user of each vehicle. If evaluation of the ranking indicates that the health prognosis of a vehicle of the peer group is improvable by modifying vehicle usage, an alert is issued to a user of that vehicle.

摘要翻译： 一种方法包括从多个车辆收集健康状况（SOH）数据和使用数据。 车辆之间确定了一个同伴群体。 基于收集的SOH和使用数据，为对等体的每个车辆生成车辆健康预测。 基于生成的车辆健康预测对等体组的车辆进行排名，并且将该等级报告给与每个车辆或每个车辆的用户相关联的输出设备。 如果评价的评价表示通过修改车辆使用可以改善对等体组的车辆的健康预测，则向该车辆的用户发出警报。

公开(公告)号：US08560165B2

公开(公告)日：2013-10-15

申请号：US13351473

申请日：2012-01-17

申请人： Mutasim A. Salman ,  Yilu Zhang ,  Mark N. Howell ,  Xidong Tang ,  Youseff A. Ghoneim ,  Walter A. Dorfstatter

发明人： Mutasim A. Salman ,  Yilu Zhang ,  Mark N. Howell ,  Xidong Tang ,  Youseff A. Ghoneim ,  Walter A. Dorfstatter

IPC分类号： G01M17/00 ,  G06F7/00 ,  G06F19/00

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。

公开(公告)号：US20130184929A1

公开(公告)日：2013-07-18

申请号：US13351473

申请日：2012-01-17

申请人： Mutasim A. Salman ,  Yilu Zhang ,  Mark N. Howell ,  Xidong Tang ,  Youssef A. Ghoneim ,  Walter A. Dorfstatter

发明人： Mutasim A. Salman ,  Yilu Zhang ,  Mark N. Howell ,  Xidong Tang ,  Youssef A. Ghoneim ,  Walter A. Dorfstatter

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。

公开(公告)号：US20130158755A1

公开(公告)日：2013-06-20

申请号：US13325132

申请日：2011-12-14

申请人： Xidong Tang ,  Mutasim A. Salman ,  Yilu Zhang

发明人： Xidong Tang ,  Mutasim A. Salman ,  Yilu Zhang

IPC分类号： B60L15/20 ,  G05B13/04

CPC分类号： G05B23/0294 ,  B60W20/50 ,  H01M10/48 ,  Y02T10/7258

摘要： A method for optimizing performance of a system includes determining, via a controller, a state of health (SOH) for each of a plurality of components of the system, and determining a state of function (SOF) of the system using the SOH of each component. The method includes estimating the remaining useful life (RUL) of the system using the system SOF, selecting a cost-optimal control strategy for the system using a costing model, and dynamically, i.e., in real time, executing the selected strategy to extend the estimated RUL. The method may include comparing the selected cost-optimal strategy to a calibrated performance threshold, and executing the selected strategy only when the selected strategy exceeds the threshold. A system includes first and second components and a controller. The controller dynamically executes the above method with respect to the components, which may be a traction motor and battery in one possible embodiment.

摘要翻译： 一种用于优化系统性能的方法包括：经由控制器确定系统的多个组件中的每一个的健康状态（SOH），以及使用每个系统的SOH来确定系统的功能状态（SOF） 零件。 该方法包括使用系统SOF估计系统的剩余使用寿命（RUL），使用成本核算模型选择用于系统的成本最优控制策略，并且动态地（即实时地）执行所选择的策略以扩展 估计RUL 该方法可以包括将所选择的成本最优策略与校准的性能阈值进行比较，并且仅在所选择的策略超过阈值时执行所选择的策略。 系统包括第一和第二组件和控制器。 在一个可能的实施例中，控制器相对于组件动态执行上述方法，其可以是牵引电动机和电池。

公开(公告)号：US08612079B2

公开(公告)日：2013-12-17

申请号：US13325132

申请日：2011-12-14

申请人： Xidong Tang ,  Mutasim A. Salman ,  Yilu Zhang

发明人： Xidong Tang ,  Mutasim A. Salman ,  Yilu Zhang

IPC分类号： B60L9/00

CPC分类号： G05B23/0294 ,  B60W20/50 ,  H01M10/48 ,  Y02T10/7258

摘要： A method for optimizing performance of a system includes determining, via a controller, a state of health (SOH) for each of a plurality of components of the system, and determining a state of function (SOF) of the system using the SOH of each component. The method includes estimating the remaining useful life (RUL) of the system using the system SOF, selecting a cost-optimal control strategy for the system using a costing model, and dynamically, i.e., in real time, executing the selected strategy to extend the estimated RUL. The method may include comparing the selected cost-optimal strategy to a calibrated performance threshold, and executing the selected strategy only when the selected strategy exceeds the threshold. A system includes first and second components and a controller. The controller dynamically executes the above method with respect to the components, which may be a traction motor and battery in one possible embodiment.

摘要翻译： 一种用于优化系统性能的方法包括：经由控制器确定系统的多个组件中的每一个的健康状态（SOH），以及使用每个系统的SOH来确定系统的功能状态（SOF） 零件。 该方法包括使用系统SOF估计系统的剩余使用寿命（RUL），使用成本核算模型选择用于系统的成本最优控制策略，并且动态地（即实时地）执行所选择的策略以扩展 估计RUL 该方法可以包括将所选择的成本最优策略与校准的性能阈值进行比较，并且仅在所选择的策略超过阈值时执行所选择的策略。 系统包括第一和第二组件和控制器。 在一个可能的实施例中，控制器相对于组件动态执行上述方法，其可以是牵引电动机和电池。

公开(公告)号：US20130231826A1

公开(公告)日：2013-09-05

申请号：US13409915

申请日：2012-03-01

申请人： Yilu ZHANG ,  Mutasim A. Salman ,  Xiaofeng Mao ,  Fan Bai ,  Xinyu Du ,  Bo Yu ,  Pulak Bandyopadhyay

发明人： Yilu ZHANG ,  Mutasim A. Salman ,  Xiaofeng Mao ,  Fan Bai ,  Xinyu Du ,  Bo Yu ,  Pulak Bandyopadhyay

IPC分类号： G06F7/00

CPC分类号： G06Q10/20 ,  G07C5/008

摘要： A method includes collecting state of health (SOH) data and usage data from a plurality of vehicles. A peer group is identified among the vehicles. A vehicle health prognosis is generated for each vehicle of the peer based on the collected SOH and usage data. The vehicles of the peer group are ranked based on the generated vehicle health prognosis and the rank is reported to an output device that is associated with each vehicle or with a user of each vehicle. If evaluation of the ranking indicates that the health prognosis of a vehicle of the peer group is improvable by modifying vehicle usage, an alert is issued to a user of that vehicle.

摘要翻译： 一种方法包括从多个车辆收集健康状况（SOH）数据和使用数据。 车辆之间确定了一个同伴群体。 基于收集的SOH和使用数据，为对等体的每个车辆生成车辆健康预测。 基于生成的车辆健康预测对等体组的车辆进行排名，并且将该等级报告给与每个车辆或每个车辆的用户相关联的输出设备。 如果评价的评价表示通过修改车辆使用可以改善对等体组的车辆的健康预测，则向该车辆的用户发出警报。

公开(公告)号：US20120319722A1

公开(公告)日：2012-12-20

申请号：US13161939

申请日：2011-06-16

申请人： Yilu Zhang ,  Siwei Cheng ,  Mutasim A. Salman

发明人： Yilu Zhang ,  Siwei Cheng ,  Mutasim A. Salman

IPC分类号： G01R31/34

CPC分类号： G01R31/343 ,  G01R31/346

摘要： A method for detecting whether the stator in a vehicle alternator has a turn-to-turn short circuit. The method includes determining an output current or voltage signal of the alternator, where the output current or voltage signal includes a ripple current frequency as a result of an AC-to-DC conversion. The method determines the speed of the alternator and a current output of the alternator. The method then determines the ripple current frequency of the alternator from the alternator speed, and determines a winding frequency from the ripple current frequency. The method performs an FFT analysis on the voltage and current signal, determines an amplitude of the winding frequency and compares the amplitude of the winding frequency to a predetermined amplitude, where if the difference exceeds a predetermined threshold, a turn-to-turn short circuit is likely occurring.

摘要翻译： 一种用于检测车辆交流发电机中的定子是否具有匝间短路的方法。 该方法包括确定交流发电机的输出电流或电压信号，其中输出电流或电压信号包括作为AC到DC转换的结果的纹波电流频率。 该方法确定交流发电机的速度和交流发电机的电流输出。 然后，该方法从交流发电机速度确定交流发电机的纹波电流频率，并从纹波电流频率确定绕组频率。 该方法对电压和电流信号进行FFT分析，确定绕组频率的幅度，并将绕组频率的振幅与预定幅度进行比较，其中如果差超过预定阈值，则匝间短路 很可能发生。

公开(公告)号：US20120200298A1

公开(公告)日：2012-08-09

申请号：US13023748

申请日：2011-02-09

申请人： Yilu Zhang ,  Niannian Tong ,  Mutasim A. Salman ,  Kevin R. Bainbridge ,  David W. Walters

发明人： Yilu Zhang ,  Niannian Tong ,  Mutasim A. Salman ,  Kevin R. Bainbridge ,  David W. Walters

IPC分类号： G01N27/416

CPC分类号： H01M10/488 ,  G01R31/367 ,  G01R31/3835 ,  H01M10/44 ,  H01M10/48 ,  H01M10/486 ,  H01M2220/20

摘要： A method is provided for determining a state-of-charge of a battery for a vehicle. The vehicle is in a charging state when the engine is operating and a non-charging state when the engine is not operating. A first battery voltage is measured at a first predetermined time period after battery charging is discontinued in the non-charging state. A first temperature of the battery is measured that coincides with the first battery voltage. A second battery voltage is measured at a second predetermined time. The second predetermined time is greater than the first predetermined time. A second temperature of the battery is measured that coincides with the second battery voltage. An average temperature is calculated based on the first temperature measurement and the second temperature measurement. A fixed time constant is determined based on the average temperature. An open circuit voltage is estimated as a function of the first voltage measurement, the second voltage measurement, and the fixed time constant. A state-of-charge of the battery is determined based on the estimated open circuit voltage.

摘要翻译： 提供了一种用于确定用于车辆的电池的充电状态的方法。 当发动机运转时车辆处于充电状态，发动机不工作时处于非充电状态。 在非充电状态下中断电池充电之后，在第一预定时间段测量第一电池电压。 测量与第一电池电压一致的电池的第一温度。 在第二预定时间测量第二电池电压。 第二预定时间大于第一预定时间。 测量与第二电池电压一致的电池的第二温度。 基于第一温度测量和第二温度测量计算平均温度。 基于平均温度确定固定时间常数。 根据第一电压测量值，第二电压测量值和固定时间常数来估计开路电压。 基于估计的开路电压来确定电池的充电状态。