US 12,246,713 B2
Cruise control algorithm for increasing fuel efficiency
Decebal Catalin Barbu, Troy, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on Jul. 20, 2023, as Appl. No. 18/355,669.
Prior Publication US 2025/0026343 A1, Jan. 23, 2025
Int. Cl. B60W 30/14 (2006.01); B60W 50/10 (2012.01)
CPC B60W 30/143 (2013.01) [B60W 50/10 (2013.01); B60W 2520/10 (2013.01); B60W 2520/16 (2013.01); B60W 2710/0666 (2013.01); B60W 2710/083 (2013.01); B60W 2720/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for controlling a vehicle speed comprising:
receiving, from a user interface, a set speed and a minimum speed;
generating a first control signal indicative of a first engine torque request;
controlling a vehicle to maintain the set speed in response to the first engine torque request;
detecting a vehicle pitch;
detecting the vehicle speed;
generating a second control signal indicative of the first engine torque request in response to the vehicle pitch being greater than zero degrees and the vehicle speed being greater than the minimum speed;
controlling the vehicle to maintain a first engine torque in response to the first engine torque request;
generating a third control signal indicative of a second engine torque request in response to the vehicle pitch being greater than zero degrees and the vehicle speed being less than the minimum speed; and
controlling the vehicle to maintain the minimum speed in response to the second engine torque request.