US 12,485,769 B2
Noise reduction in a transmission of an electric vehicle drive
Norbert Schroeder, Munich (DE)
Assigned to Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Appl. No. 18/280,288
Filed by Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
PCT Filed Apr. 8, 2022, PCT No. PCT/EP2022/059394
§ 371(c)(1), (2) Date Sep. 5, 2023,
PCT Pub. No. WO2022/233535, PCT Pub. Date Nov. 10, 2022.
Claims priority of application No. 10 2021 111 908.1 (DE), filed on May 7, 2021.
Prior Publication US 2024/0149701 A1, May 9, 2024
Int. Cl. B60L 15/20 (2006.01)
CPC B60L 15/20 (2013.01) [B60L 2240/423 (2013.01); B60L 2240/486 (2013.01); B60L 2240/80 (2013.01); B60L 2270/142 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for controlling an electric drive machine of a motor vehicle, wherein a rotor shaft of which is connected by a gearwheel mechanism comprising a plurality of gearwheels to an output shaft of the motor vehicle, the method comprising:
during a load change of the drive machine before a flank change of the gearwheel mechanism, providing a torque spike of the drive machine to adapt rotational movement of the gearwheels of the gearwheel mechanism, and
concluding the torque spike before a start of the flank change.