US 12,110,000 B2
Method for operating an electrified drive train for a working machine, electrified drive train for a working machine and working machine
Rico Glöckner, Pocking (DE); Migen Bebeti, Munich (DE); and Norbert Feuchtner, Untergriesbach (DE)
Assigned to ZF FRIEDRICHSHAFEN AG, Friedrichshafen (DE)
Appl. No. 17/909,764
Filed by ZF Friedrichshafen AG, Friedrichshafen (DE)
PCT Filed Mar. 15, 2021, PCT No. PCT/EP2021/056505
§ 371(c)(1), (2) Date Sep. 7, 2022,
PCT Pub. No. WO2021/185747, PCT Pub. Date Sep. 23, 2021.
Claims priority of application No. 10 2020 203 594.6 (DE), filed on Mar. 20, 2020.
Prior Publication US 2023/0105135 A1, Apr. 6, 2023
Int. Cl. B60W 10/196 (2012.01); B60W 10/08 (2006.01); B60W 10/18 (2012.01)
CPC B60W 10/08 (2013.01) [B60W 10/182 (2013.01); B60W 10/196 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for operating an electrified drive train for a working machine, wherein the drivetrain comprises a driving coupling of an electric motor of the drive train to at least one wheel of the working machine, the method comprising:
generating an acceleration torque by the electric motor, the acceleration torque leading to an increase in speed of the at least one wheel;
generating a braking torque by the electric motor, the braking torque leading to a reduction in speed of the at least one wheel;
generating a second acceleration torque by the at least one wheel, the second acceleration torque leading to an increase in a speed of the electric motor; and
generating a second braking torque by the at least one wheel, the second braking torque leading to a reduction in the speed of the electric motor,
wherein, during a regenerative operation of the electric motor, an unwanted acceleration of the working machine is counteracted by an automated additional braking intervention.