US 12,280,784 B2
Battery electric vehicle (BEV) torque split control
Matthew Hancock, Coventry (GB); David Copp, Coventry (GB); Lee Adcock, Coventry (GB); and Alex Plianos, Coventry (GB)
Assigned to JAGUAR LAND ROVER LIMITED, Coventry (GB)
Filed by JAGUAR LAND ROVER LIMITED, Coventry (GB)
Filed on Oct. 18, 2022, as Appl. No. 18/047,618.
Application 18/047,618 is a continuation of application No. 16/285,640, filed on Feb. 26, 2019, granted, now 11,472,411.
Claims priority of application No. 1803046 (GB), filed on Feb. 26, 2018.
Prior Publication US 2024/0123994 A1, Apr. 18, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B60W 30/18 (2012.01); B60K 1/00 (2006.01); B60K 1/02 (2006.01); B60K 6/52 (2007.10); B60K 17/356 (2006.01); B60L 15/20 (2006.01); B60W 10/08 (2006.01); B60W 30/02 (2012.01); B60W 30/188 (2012.01); B60W 50/00 (2006.01)
CPC B60W 30/18172 (2013.01) [B60K 1/02 (2013.01); B60K 6/52 (2013.01); B60K 17/356 (2013.01); B60L 15/20 (2013.01); B60L 15/2045 (2013.01); B60W 10/08 (2013.01); B60W 30/02 (2013.01); B60K 2001/001 (2013.01); B60L 2240/36 (2013.01); B60L 2240/421 (2013.01); B60L 2240/423 (2013.01); B60L 2240/425 (2013.01); B60W 30/1882 (2013.01); B60W 2050/0013 (2013.01); B60W 2050/0026 (2013.01); B60W 2050/0027 (2013.01); B60W 50/0098 (2013.01); B60W 2510/081 (2013.01); B60W 2510/083 (2013.01); B60W 2510/087 (2013.01); B60W 2520/10 (2013.01); B60W 2520/26 (2013.01); B60W 2540/10 (2013.01); B60W 2540/12 (2013.01); B60W 2552/40 (2020.02); B60W 2710/083 (2013.01); B60W 2720/403 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A controller for a vehicle with a front and rear axle, each axle being provided with at least two wheels and at least first and second propulsion units, wherein the controller is configured to control the at least first and second propulsion units to generate a combined torque with reference to a total requested torque, the controller comprising:
a traction availability module configured to receive one or more traction signals indicating available traction at at least one wheel;
a traction determination module configured to determine a traction torque range defined by a maximum and minimum torque for at least one of the at least first or second propulsion units in dependence on one or more of the one or more traction signals;
a torque split module configured to determine a proposed distribution of torque between each of the at least first and second propulsion units with reference to the total requested torque, and to determine a proposed torque to be generated by each of the at least first and second propulsion units in dependence on the proposed distribution of torque;
a torque shaping module configured to compare the traction torque range determined for each propulsion unit for which the traction torque range has been determined and the proposed torque for that propulsion unit, and to generate at least one torque control signal for controlling at least one of the at least first and second propulsion units, wherein
the at least one torque control signal is a signal to the at least first or second propulsion units to generate the proposed torque for that propulsion unit if the proposed torque for that propulsion unit is within the traction torque range for that propulsion unit,
wherein the controller is further configured to determine at least first and second power loss penalties in dependence on current operating parameters of the at least first and second propulsion units, and
wherein the at least first and second propulsion units each comprise an electric machine, wherein the controller is further configured to determine the at least first and second power loss penalties in dependence on an operating temperature of the associated electric machine.