US 12,146,301 B2
Automatic torque control system
Sudarshan A. Maiyur, Cary, NC (US); and Jeffrey M. Pillis, Apex, NC (US)
Assigned to Caterpillar Inc., Peoria, IL (US)
Filed by Caterpillar Inc., Peoria, IL (US)
Filed on Apr. 29, 2021, as Appl. No. 17/244,003.
Prior Publication US 2022/0349155 A1, Nov. 3, 2022
Int. Cl. E02F 9/26 (2006.01); B60W 30/18 (2012.01); B60W 40/06 (2012.01); E02F 9/22 (2006.01)
CPC E02F 9/265 (2013.01) [B60W 30/18172 (2013.01); B60W 40/06 (2013.01); E02F 9/2253 (2013.01); B60W 2300/17 (2013.01); B60W 2520/26 (2013.01); B60W 2720/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for automatically controlling a torque of a vehicle, comprising:
engaging an automatic torque control system, by a vehicle controller, when the vehicle engages a load, the vehicle controller including an auto wheel torque module that receives input signals from a plurality of sensors including a transmission system pressure sensor and a vehicle speed sensor, wherein the vehicle controller receives the input signals from the transmission system pressure sensor and determines a transmission pressure is greater than a transmission pressure threshold value;
determining a type of ground surface, wherein the vehicle controller stores a plurality of values relating to different types of ground surfaces; and
automatically decreasing the torque to a base torque setting for torque output from a transmission system when the vehicle controller detects when the vehicle engages the load and prior to one or more wheels of the vehicle slipping, wherein the vehicle controller generates the base torque setting based on the input signals from the plurality of sensors and the plurality of values, and
the base torque setting is set to a first torque output value based on a first determined type of ground surface and set to a second torque output value based on a second determined type of ground surface.