Intelligent vehicles and control logic for managing faults for dual-independent drive unit axle powertrains

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United States of America Patent

PATENT NO 12122248
APP PUB NO 20220289044A1
SERIAL NO

17201536

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Abstract

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Presented are control systems for operating dual-independent drive unit (DIDU) powertrains, methods for making/operating such systems, and electric-drive vehicles with fault management and mitigation for DIDU axles. A method of operating a motor vehicle with a DIDU axle includes monitoring first and second drive units (DU) that are independently operable to drive respective road wheels via respective axle shafts of the DIDU axle. A vehicle controller receives an indication of a fault condition in the first DU from a fault sensing module and responsively determines a fault type for the fault condition. The controller ascertains the vehicle's current speed and determines a respective torque limit for each of the DIDU drive units based on the fault type and current vehicle speed. Torque output of the first DU is concomitantly constrained to a first torque limit while torque output of the second DU is constrained to a second torque limit.

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Patent Owner(s)

Patent OwnerAddress
GM GLOBAL TECHNOLOGY OPERATIONS LLC300 RENAISSANCE CENTER MAIL CODE 482-C24-A68 P O BOX 300 DETROIT MI 48265

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Downs,, Jr Aubrey W Brighton, US 4 9
Faucett, James M Commerce, US 2 10
Gagas, Brent S Pleasant Ridge, US 25 47
Hu, Yiran Shelby Township, US 45 228
Jones, Christopher L Ann Arbor, US 53 3738
Long, Ruixing Windsor, CA 22 221
Wang, Wei Troy, US 2815 17926

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