US 12,409,737 B2
Output speed monitoring for an electric drive train
Rico Glöckner, Pocking (DE); and Migen Bebeti, Munich (DE)
Assigned to ZF FRIEDRICHSHAFEN AG, Friedrichshafen (DE)
Appl. No. 18/838,264
Filed by ZF FRIEDRICHSHAFEN AG, Friedrichshafen (DE)
PCT Filed Feb. 14, 2023, PCT No. PCT/EP2023/053617
§ 371(c)(1), (2) Date Aug. 14, 2024,
PCT Pub. No. WO2023/156379, PCT Pub. Date Aug. 24, 2023.
Claims priority of application No. 10 2022 201 604.1 (DE), filed on Feb. 16, 2022.
Prior Publication US 2025/0145012 A1, May 8, 2025
Int. Cl. B60L 15/10 (2006.01); B60L 15/20 (2006.01)
CPC B60L 15/10 (2013.01) [B60L 15/20 (2013.01); B60L 2200/40 (2013.01); B60L 2240/16 (2013.01); B60L 2240/421 (2013.01); B60L 2250/26 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for controlling an output speed of an electric drivetrain of a self-propelled work machine, comprising:
inputting an actual value for a longitudinal tilt of the self-propelled work machine;
inputting an actual value for the output speed;
establishing a characteristic curve of a limit value for the output speed as a function of the longitudinal tilt of the self-propelled work machine;
verifying whether, according to the input actual value for the longitudinal tilt, the input actual value for the output speed exceeds the limit value established in the characteristic curve; and
operating an electric drivetrain by outputting a control signal configured to operate the electric drivetrain according to a verification result based on the verification step.