公开(公告)号：US10589783B2

公开(公告)日：2020-03-17

申请号：US15938165

申请日：2018-03-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Alexander M. Allan ,  Addney T. Biery, II ,  Paul A. Kilmurray

IPC: B62D15/02 ,  B62D6/10 ,  B60W50/029 ,  H04L12/40

Abstract: A method for performing operations onboard a vehicle is provided. The method obtains a steering calibration command, by a computing device communicatively coupled to a steering mechanism for the vehicle; initiates execution of the steering calibration command, by the computing device via the steering mechanism; determines at least one maximum steering angle of the vehicle, based on execution of the steering calibration command, the at least one maximum steering angle being associated with a maximum potential position of the steering mechanism; identifies a zero-position center of the steering mechanism, based on the at least one maximum steering angle of the vehicle; stores the zero-position center and the at least one maximum steering angle, by the computing device, for future use; and broadcasts the zero-position center and the at least one maximum steering angle, via a Controller Area Network (CAN) bus of the vehicle, by the communication device.

公开(公告)号：US10946865B1

公开(公告)日：2021-03-16

申请号：US16601043

申请日：2019-10-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Wen-Chiao Lin ,  Xinyu Du ,  Alexander M. Allan ,  Robert A. De Stefano ,  Xiaofeng Mao

IPC: B60L1/00 ,  B60L3/00 ,  H02G3/00 ,  B60W50/02 ,  G07C5/08 ,  B60R16/03 ,  G01R31/50

Abstract: A power circuit includes a power source and a plurality components that connect the power source to a subsystem of a vehicle. A fault detection module receives voltages at an output of the power source and at an input of the subsystem and current drawn by the subsystem, and distinguishes between a power source failure, a permanent and an intermittent disconnection of one of the components from the power source, and a loose connection between the power circuit and the subsystem or corrosion of one of the components, based on analyses of the voltages and the current. A fault mitigation module mitigates the first two faults by switching to a different power source in the vehicle to supply power to the subsystem, and mitigates the third and fourth faults by reducing the power consumed by the subsystem and by generating a warning regarding the intermittent disconnection or loose connection.

公开(公告)号：US11827293B2

公开(公告)日：2023-11-28

申请号：US17171005

申请日：2021-02-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Wen-Chiao Lin ,  Ibrahim A. Badiru ,  Alexander M. Allan ,  Bo Yu ,  Qi Zhang ,  Christopher C. Au

IPC: B62D5/04 ,  B62D3/12

CPC classification number: B62D5/049 ,  B62D3/126 ,  B62D5/0484 ,  B62D5/0487

Abstract: A system comprises a processor and a memory storing instructions which when executed by the processor configure the processor to estimate a rack force for a steering system of a vehicle based on current driving and environmental conditions and estimate a health of an actuator of the steering system of the vehicle. The instructions configure the processor to estimate maximum achievable angle, velocity, and acceleration for the actuator of the steering system based on the estimated rack force and the estimated health of the actuator. The instructions configure the processor to provide to the steering system a path planned for the vehicle based on the estimated maximum achievable angle, velocity, and acceleration for the actuator of the steering system.

公开(公告)号：US20190300052A1

公开(公告)日：2019-10-03

申请号：US15938165

申请日：2018-03-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Alexander M. Allan ,  Addney T. Biery, II ,  Paul A. Kilmurray

IPC: B62D15/02

Abstract: A method for performing operations onboard a vehicle is provided. The method obtains a steering calibration command, by a computing device communicatively coupled to a steering mechanism for the vehicle; initiates execution of the steering calibration command, by the computing device via the steering mechanism; determines at least one maximum steering angle of the vehicle, based on execution of the steering calibration command, the at least one maximum steering angle being associated with a maximum potential position of the steering mechanism; identifies a zero-position center of the steering mechanism, based on the at least one maximum steering angle of the vehicle; stores the zero-position center and the at least one maximum steering angle, by the computing device, for future use; and broadcasts the zero-position center and the at least one maximum steering angle, via a Controller Area Network (CAN) bus of the vehicle, by the communication device.