公开(公告)号：US20230311848A1

公开(公告)日：2023-10-05

申请号：US17713491

申请日：2022-04-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Emil Francu ,  Russell K. Steele ,  Andrew M. Zettel ,  Rohit Singhal

IPC: B60W20/50 ,  G07C5/08 ,  B60W50/02 ,  B60W50/038 ,  B60R16/023 ,  B60K6/40

CPC classification number: B60W20/50 ,  G07C5/0816 ,  B60W50/0205 ,  B60W50/038 ,  B60R16/0231 ,  B60K6/40 ,  B60W2520/10 ,  B60W2720/10 ,  B60W2510/081 ,  B60W2510/305 ,  B60Y2200/92

Abstract: A method of operating a motor vehicle includes a vehicle controller receiving, from a first feedback sensor of an HV component, a first feedback signal indicative of an electrical characteristic of the HV component, and then detecting an HV system fault if the first feedback signal is less than a predefined electrical threshold. Upon detecting the system fault, the controller commands the HV component to operate at a commanded set-point; after sending the command, the controller receives, from a second feedback sensor of the HV component, a second feedback signal indicative of an operating characteristic of the HV component. An HV pathway failure is detected if the second feedback signal is not equal to or within a predefined operating range of the commanded set-point. Upon detecting the pathway failure in an HV electrical pathway of the HV component, the vehicle controller transmits a command signal to take a remedial action.