US 12,344,217 B2
Method and system for performing regenerative braking with feedback from brake-traction control system
Jaime Antonio Lugo-Castillo, Unionville, IN (US); Martin T. Books, Columbus, IN (US); and Richard A. Booth, Columbus, IN (US)
Assigned to Cummins Inc., Columbus, IN (US)
Filed by Cummins Inc., Columbus, IN (US)
Filed on Jun. 27, 2023, as Appl. No. 18/214,605.
Application 18/214,605 is a continuation of application No. 17/085,845, filed on Oct. 30, 2020, granted, now 11,724,678.
Prior Publication US 2023/0331203 A1, Oct. 19, 2023
Int. Cl. B60T 8/17 (2006.01); B60T 8/1763 (2006.01); B60W 10/06 (2006.01); B60W 10/08 (2006.01); B60W 10/18 (2012.01); B60W 20/10 (2016.01); B60W 30/02 (2012.01)
CPC B60T 8/17636 (2013.01) [B60W 10/06 (2013.01); B60W 10/08 (2013.01); B60W 10/18 (2013.01); B60W 20/10 (2013.01); B60W 30/02 (2013.01); B60T 2210/30 (2013.01); B60T 2210/36 (2013.01); B60T 2250/04 (2013.01); B60T 2270/10 (2013.01); B60T 2270/602 (2013.01); B60T 2270/604 (2013.01); B60W 2555/20 (2020.02)] 16 Claims
OG exemplary drawing
 
1. A method of operating a vehicle on a reduced traction surface, the method comprising:
detecting, by a controller of the vehicle, that the vehicle is operating under a sustained derate in which a torque limit is applied on a maximum allowed braking torque of the vehicle;
obtaining, by the controller, at least one of: ambient information or GPS information;
determining, by the controller, a derate reduction period during which the torque limit is configured to be changed, a duration of the derate reduction period being adjustable based on the ambient information or the GPS information; and
in an absence of traction control event indicative of a loss of traction by the vehicle, gradually removing, by the controller, the torque limit on the maximum allowed braking torque over the duration of the derate reduction period.