US 11,787,277 B2
Drive and method for operating a drive
Klaus Schwesinger, Bruchsal (DE); and Matthias Schneider, Bruchsal (DE)
Assigned to SEW-EURODRIVE GMBH & CO. KG, Bruchsal (DE)
Appl. No. 17/639,208
Filed by SEW-EURODRIVE GMBH & CO. KG, Bruchsal (DE)
PCT Filed Jul. 23, 2020, PCT No. PCT/EP2020/025344
§ 371(c)(1), (2) Date Feb. 28, 2022,
PCT Pub. No. WO2021/037390, PCT Pub. Date Mar. 4, 2021.
Claims priority of application No. 102019006043.1 (DE), filed on Aug. 27, 2019.
Prior Publication US 2022/0402343 A1, Dec. 22, 2022
Int. Cl. B60K 1/02 (2006.01)
CPC B60K 1/02 (2013.01) [B60Y 2400/72 (2013.01); B60Y 2400/73 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A drive for power transmission from a driving shaft to a driven shaft, comprising:
a first electric motor;
a second electric motor;
a mechanical transmission;
a first inverter; and
a second inverter;
wherein the first electric motor is adapted to operate as a generator, to be fed by a part of power to be transmitted from the driving shaft, and to convert the part of the power into electrical power that is at least partially fed to the second electric motor operated as a motor and adapted to feed mechanical power to the driven shaft, the first electric motor adapted to feed an AC voltage side connection of the first inverter, a DC voltage side connection of the first inverter adapted to feed a DC voltage side connection of the second inverter, an AC voltage side connection of the second inverter adapted to feed the second electric motor, the mechanical transmission adapted to transmit a remaining portion of the power to be transmitted from the driving shaft to the driven shaft; and
wherein the mechanical transmission includes a planetary gear, and the driving shaft includes a planet carrier.