US 12,330,668 B2
Torque request modification strategies for vehicles
Olivier Roques, Banbury (GB); Manuel Vilaboy, Coventry (GB); and Matthew Sullivan, Hinckley (GB)
Assigned to JAGUAR LAND ROVER LIMITED, Coventry (GB)
Appl. No. 17/920,770
Filed by JAGUAR LAND ROVER LIMITED, Coventry (GB)
PCT Filed Apr. 27, 2021, PCT No. PCT/EP2021/060981
§ 371(c)(1), (2) Date Oct. 21, 2022,
PCT Pub. No. WO2021/214347, PCT Pub. Date Oct. 28, 2021.
Claims priority of application No. 2005816 (GB), filed on Apr. 21, 2020.
Prior Publication US 2023/0339489 A1, Oct. 26, 2023
Int. Cl. B60W 50/08 (2020.01); B60W 20/10 (2016.01)
CPC B60W 50/087 (2013.01) [B60W 20/10 (2013.01); B60W 2510/084 (2013.01); B60W 2520/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A control system for controlling a total driven wheel torque for a vehicle by controlling torque output of a first torque source of the vehicle and of a second torque source of the vehicle, wherein the first torque source is configured to provide drive torque to a first axle of the vehicle for generating first axle wheel torque, wherein the second torque source is configured to provide drive torque to a second axle of the vehicle for generating second axle wheel torque, the control system comprising one or more controllers, wherein the control system is configured to:
receive a total torque request for total driven wheel torque;
produce a first torque request for the first torque source and a second torque request for the second torque source, in dependence on the total torque request for the total driven wheel torque;
determining whether the first torque request is not satisfiable by comparing the first torque request with a first shaped torque request to determine a first error therebetween, the first torque request being determined to be not satisfiable if the first error is greater than a first error threshold for the first torque source;
determining whether the second torque request is not satisfiable by comparing the second torque request with a second shaped torque request to determine a second error therebetween, the second torque request being determined to be not satisfiable if the second error is greater than a second error threshold for the second torque source; and
when at least one of the first and second torque requests is not satisfiable modify at least one of the first and second torque requests to enable a sum of the first axle wheel torque and the second axle wheel torque to approach or satisfy the total torque request, wherein the modification of at least one of the torque requests is controlled by at least one torque rate modifier configured to increase or decrease a rate of change of at least one of the torque requests.