公开(公告)号：US20220307941A1

公开(公告)日：2022-09-29

申请号：US17212215

申请日：2021-03-25

Applicant: GM Global Technology Operations LLC

Inventor： Graeme R. Garner ,  Hossein Sadjadi ,  Samba Drame ,  Griffin L. Tanner

IPC: G01M13/045

Abstract: A method for early detection and prognosis of wheel bearing faults in a motor vehicle includes one or more of the following: obtaining a wheel speed of a wheel with a sensor in combination with an encoder ring, the sensor generating a signal, the wheel including a bearing that enables rotational movement of the wheel; pre-processing the signal from the sensor; and post- processing an output of the pre-processed signal to generate a bearing fault signature of the bearing.

公开(公告)号：US12151664B2

公开(公告)日：2024-11-26

申请号：US17207117

申请日：2021-03-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Milad Jalaliyazdi ,  Graeme R. Garner ,  Hossein Sadjadi ,  Hamed Kazemi

IPC: B60T8/32 ,  B60T8/17 ,  B60T8/171 ,  B60T8/58 ,  B60T8/88 ,  B60T17/22 ,  B60T7/04

Abstract: A system includes a brake torque request module, a brake control module, and a diagnostic module. The brake torque request module is configured to generate a brake torque request based on a brake pedal position during a braking event. The brake control module is configured to apply friction brakes on a wheelset of a vehicle to satisfy the brake torque request during the braking event. The wheelset includes less than all wheels of the vehicle. The diagnostic module is configured to detect a fault in a brake rotor on a wheel in the wheelset based on vehicle operating conditions measured during the braking event.