US 11,745,591 B2
Propulsion torque distribution system providing remedial action
Daniel Marius Bangala, Thornhill (CA); Yiran Hu, Shelby Township, MI (US); Sirui Song, Toronto (CA); and Matthew James Meakin Brymer, North York (CA)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM Global Technology Operations LLC, Detroit, MI (US)
Filed on May 25, 2021, as Appl. No. 17/329,668.
Prior Publication US 2022/0379728 A1, Dec. 1, 2022
Int. Cl. B60L 3/00 (2019.01); B60L 15/20 (2006.01)
CPC B60L 3/0038 (2013.01) [B60L 15/20 (2013.01); B60L 2240/16 (2013.01); B60L 2240/18 (2013.01); B60L 2240/24 (2013.01); B60L 2240/423 (2013.01); B60L 2250/26 (2013.01); B60L 2260/28 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A propulsion torque distribution system for a vehicle, wherein the vehicle includes a plurality of torque distribution motors, the propulsion torque distribution system comprising:
a controller in electronic communication with a plurality of vehicle systems, wherein the controller executes instructions to:
receive at least one of the following: one or more computational faults and one or more sensor faults in combination with a driver torque request, wherein the driver torque request indicates a total torque that a propulsion system of the vehicle is required to produce;
in response to receiving at least one of the one or more computational faults and the one or more sensor faults, determine a fault that affects calculation of a primary torque request has occurred, wherein and the primary torque request allocates the total torque between the torque distribution motors of the vehicle;
in response to determining the fault that affects calculation of the primary torque request has occurred, determine a severity of the fault;
determine a remedial state based on the severity of the fault, wherein the remedial state indicates a corresponding action that is executed by the propulsion torque distribution system;
classify the severity of the fault into one of a plurality of fault classifications, wherein the remedial state is determined based on a specific fault classification, and wherein the propulsion torque distribution system retains an all-wheel drive capability of the vehicle based on the severity of the fault, wherein the fault is classified as a third fault classification that coincides with being unable to determine the primary torque request; and
in response to classifying the fault as the third fault classification, determine a lateral acceleration estimate and a longitudinal acceleration estimate of the vehicle based on sensor data from the plurality of vehicle systems.