US 12,221,090 B2
Method and device for determining a torque, and agricultural towing vehicle
Volker Kegel, Mannheim (DE); David Mueller, Dettenheim (DE); Norbert Fritz, Ilvesheim (DE); and Rainer Gugel, Plankstadt (DE)
Assigned to DEERE & COMPANY, Moline, IL (US)
Filed by DEERE & COMPANY, Moline, IL (US)
Filed on May 16, 2024, as Appl. No. 18/666,122.
Claims priority of application No. 10202311359.8 (DE), filed on May 24, 2023.
Prior Publication US 2024/0391448 A1, Nov. 28, 2024
Int. Cl. B60W 10/02 (2006.01); B60W 20/40 (2016.01)
CPC B60W 10/02 (2013.01) [B60W 20/40 (2013.01); B60W 2710/027 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for determining a torque acting at a position of a drive train of an agricultural towing vehicle, comprising:
controlling a clutch of the drive train between a closed state and an open state;
capturing a drive-side rotational speed at the clutch via a first rotational speed sensor;
capturing an output-side rotational speed at the clutch via a second rotational speed sensor;
controlling the clutch in the direction of the open state;
determining, during controlling the clutch in the direction of the open state, a difference between the rotational speeds on the drive and output sides;
comparing the difference with a predetermined difference limit value;
capturing the value of a physical variable that causes the clutch control on the basis of the comparison result; and
determining the torque on the basis of the captured value of the physical variable.