Invention Grant
- Patent Title: System and method for estimating a clutch torque of an electronic limited slip differential and tire longitudinal forces
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Application No.: US17325709Application Date: 2021-05-20
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Publication No.: US11651633B2Publication Date: 2023-05-16
- Inventor: Yubiao Zhang , SeyedAlireza Kasaiezadeh Mahabadi , Seyedeh Asal Nahidi , Naser Mehrabi , Hualin Tan , Bakhtiar B. Litkouhi
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Main IPC: G07C5/08
- IPC: G07C5/08

Abstract:
A system includes a clutch state module and a clutch torque module. The clutch state module is configured to determine whether a clutch of an electronic limited slip differential is locked or unlocked. The electronic limited slip differential couples an engine of a vehicle to left and right wheels of the vehicle. The clutch torque module is configured to estimate an actual torque transferred by the clutch using a first clutch torque model when the electronic limited slip differential is unlocked, and estimate the actual clutch torque using a second clutch torque model when the electronic limited slip differential is locked. The second clutch torque model is different than the first clutch torque model.
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