公开(公告)号：US20190108694A1

公开(公告)日：2019-04-11

申请号：US15725941

申请日：2017-10-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xiaoyu Huang ,  Shengbing Jiang ,  Wen-Chiao Lin ,  Chaitanya Sankavaram ,  Yao Hu ,  Shiming Duan ,  Yilu Zhang ,  Paul E. Krajewski

IPC: G07C5/08

CPC classification number: G07C5/0816 ,  B60T2270/406 ,  B60W50/0205 ,  B62D5/30 ,  G07C5/008

Abstract: A method for use with a vehicle having one or more subsystems includes receiving vehicle health management (VHM) information via a controller indicative of a state of health of the subsystem. The VHM information is based on prior testing results of the subsystem. The method includes determining a required testing profile using the testing results, applying the testing profile to the subsystem to thereby control a state of the subsystem, and measuring a response of the subsystem to the applied testing profile. The method also includes recording additional testing results in memory of the controller that is indicative of a response of the subsystem to the applied testing profile. The vehicle includes a plurality of subsystems and a controller configured to execute the method.

公开(公告)号：US20190106115A1

公开(公告)日：2019-04-11

申请号：US15725930

申请日：2017-10-05

Applicant: GM Global Technology Operations LLC

Inventor： Xiaoyu Huang ,  Wen-Chiao Lin ,  Shengbing Jiang ,  Shiming Duan ,  Youssef A. Ghoneim ,  Steven W. Holland ,  Yilu Zhang

IPC: B60W50/029 ,  G05D1/00 ,  B60R16/023 ,  B60W30/18 ,  B60W50/00

Abstract: A method proactively transitions performance of a functional operation from a primary subsystem to a secondary subsystem within a vehicle or other system having an electronic control unit (ECU). The method includes receiving health management information via the ECU when the primary subsystem is actively performing the functional operation within the system and the secondary subsystem operates in a standby mode, wherein the health information is indicative of a numeric state of health (SOH) of the primary subsystem. The method also includes comparing the numeric SOH to a calibrated non-zero threshold SOH, and then commanding, via the ECU, a transition of the performance of the functional operation to the secondary subsystem and placing the primary subsystem in the standby mode when the numeric SOH is less than the calibrated non-zero threshold SOH. A vehicle executes the method via the ECU.

公开(公告)号：US09944267B2

公开(公告)日：2018-04-17

申请号：US15098797

申请日：2016-04-14

Applicant: GM Global Technology Operations LLC

Inventor： Xiaoyu Huang ,  Youssef A. Ghoneim

IPC: B60T17/22 ,  B60T13/74

CPC classification number: B60T17/221 ,  B60T8/326 ,  B60T8/4072 ,  B60T8/885 ,  B60T13/745 ,  B60T17/22 ,  B60T2270/406 ,  B60T2270/413

Abstract: A method of isolating fault in an electric motor assisted braking system of a vehicle includes calculating a value for each of a plurality of fault signature components and comparing each of the calculated values of the plurality of fault signature components to a respective threshold value for each fault signature component. The method also includes automatically executing a control action to indicate a detected fault of the electric motor assisted braking system in response to at least one of the calculated values of the plurality of fault signature components exceeding a respective threshold value.

公开(公告)号：US20170297549A1

公开(公告)日：2017-10-19

申请号：US15098797

申请日：2016-04-14

Applicant: GM Global Technology Operations LLC

Inventor： Xiaoyu Huang ,  Youssef A. Ghoneim

IPC: B60T17/22 ,  B60T13/74

CPC classification number: B60T17/221 ,  B60T8/326 ,  B60T8/4072 ,  B60T8/885 ,  B60T13/745 ,  B60T17/22 ,  B60T2270/406 ,  B60T2270/413

Abstract: A method of isolating fault in an electric motor assisted braking system of a vehicle includes calculating a value for each of a plurality of fault signature components and comparing each of the calculated values of the plurality of fault signature components to a respective threshold value for each fault signature component. The method also includes automatically executing a control action to indicate a detected fault of the electric motor assisted braking system in response to at least one of the calculated values of the plurality of fault signature components exceeding a respective threshold value.