公开(公告)号：US09349227B2

公开(公告)日：2016-05-24

申请号：US14100548

申请日：2013-12-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Timothy D. Julson ,  Mark N. Howell ,  Shuo Huang

IPC: G07C5/08 ,  G01R31/02 ,  G01R31/08 ,  G01R31/00

CPC classification number: G07C5/0808 ,  G01R31/007 ,  G01R31/02 ,  G01R31/026 ,  G01R31/08 ,  G01R31/083

Abstract: A method for detecting and locating an open-wire fault within a vehicle subsystem, is provided. The method compares an output voltage of a low-pass filter circuit of the vehicle subsystem to a threshold voltage; detects that an open-wire fault exists in the vehicle subsystem when the output voltage is not less than the threshold voltage; determines a capacitance value of the low-pass filter circuit; and performs a lookup, using the capacitance value, to determine the location of the detected open wire fault.

Abstract translation: 提供一种用于检测和定位车辆子系统内的开路故障的方法。 该方法将车辆子系统的低通滤波器电路的输出电压与阈值电压进行比较; 当输出电压不小于阈值电压时，检测车辆子系统中存在开路故障; 确定低通滤波电路的电容值; 并使用电容值执行查找，以确定检测到的断线故障的位置。

公开(公告)号：US09108524B2

公开(公告)日：2015-08-18

申请号：US14059751

申请日：2013-10-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yilu Zhang ,  Xinyu Du ,  Mutasim A. Salman ,  Shuo Huang

IPC: B60L11/18 ,  B60W20/00

CPC classification number: B60L11/1861 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2250/16 ,  B60W20/00 ,  G01R31/3606 ,  G01R31/361 ,  G01R31/362 ,  G01R31/3648 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705

Abstract: An embodiment contemplates a method of determining a state-of-charge of a battery for a vehicle. (a) An OCV is measured for a current vehicle ignition startup after ignition off for at least eight hours. (b) An SOCOCV is determined for the current vehicle ignition startup. (c) An SOCOCV—est is determined for a current vehicle ignition startup. (d) A determination is made whether the difference in the SOCOCV for the current startup and the SOCOCVest for the current startup is less than a predefined error bound using. Steps (a)-(d) is performed in response to the difference being greater than the predefined error; otherwise, determining an ignition-off current for the current vehicle ignition startup as a function of the SOCOCV of the current vehicle ignition startup and previous vehicle ignition startup, and a SOC based on current integration over time. Determining an SOCest of the current vehicle ignition startup using the processor.

Abstract translation: 实施例考虑了确定车辆电池的充电状态的方法。 （a）在点火关闭至少8小时后，测量当前车辆点火启动的OCV。 （b）确定当前车辆点火启动时的SOCOCV。 （c）确定当前车辆点火启动的SOCOCV-est。 （d）确定当前启动的SOCOCV和当前启动的SOCOCVest之间的差是否小于使用的预定义误差限制。 响应于该差大于预定义的误差来执行步骤（a） - （d） 否则，根据当前车辆点火启动和先前车辆点火启动的SOCOCV以及基于当前集成度的SOC，确定当前车辆点火启动的点火开关电流。 使用处理器确定当前车辆点火启动的SOCest。

公开(公告)号：US20150112527A1

公开(公告)日：2015-04-23

申请号：US14059751

申请日：2013-10-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yilu Zhang ,  Xinyu Du ,  Mutasim A. Salman ,  Shuo Huang

IPC: B60L11/18

CPC classification number: B60L11/1861 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2250/16 ,  B60W20/00 ,  G01R31/3606 ,  G01R31/361 ,  G01R31/362 ,  G01R31/3648 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705

Abstract: An embodiment contemplates a method of determining a state-of-charge of a battery for a vehicle. (a) An OCV is measured for a current vehicle ignition startup after ignition off for at least eight hours. (b) An SOCOCV is determined for the current vehicle ignition startup. (c) An SOCOCV—est is is determined for a current vehicle ignition startup. (d) A determination is made whether the difference in the SOCOCV for the current startup and the SOCOCVest for the current startup is less than a predefined error bound using. Steps (a)-(d) is performed in response to the difference being greater than the predefined error; otherwise, determining an ignition-off current for the current vehicle ignition startup as a function of the SOCOCV of the current vehicle ignition startup and previous vehicle ignition startup, and a SOC based on current integration over time. Determining an SOCest of the current vehicle ignition startup using the processor.

Abstract translation: 实施例考虑了确定车辆电池的充电状态的方法。 （a）在点火关闭至少8小时后，测量当前车辆点火启动的OCV。 （b）确定当前车辆点火启动时的SOCOCV。 （c）对于当前的汽车点火启动来确定SOCOCV-est。 （d）确定当前启动的SOCOCV和当前启动的SOCOCVest之间的差是否小于使用的预定义误差限制。 响应于该差大于预定义的误差来执行步骤（a） - （d） 否则，根据当前车辆点火启动和先前车辆点火启动的SOCOCV以及基于当前集成度的SOC，确定当前车辆点火启动的点火开关电流。 使用处理器确定当前车辆点火启动的SOCest。