US 11,873,884 B2
Torque transmission device for a motor vehicle
Herve Maurel, Cergy Pontoise (FR); Norberto Termenon, Cergy Pontoise (FR); Camelia Jivan, Cergy Pontoise (FR); Thierry Guinot, Cergy Pontoise (FR); and Jean-Christophe Pecoul, Cergy Pontoise (FR)
Assigned to VALEO EMBRAYAGES, Amiens (FR)
Appl. No. 17/433,143
Filed by VALEO EMBRAYAGES, Amiens (FR)
PCT Filed Feb. 24, 2020, PCT No. PCT/EP2020/054796
§ 371(c)(1), (2) Date Aug. 23, 2021,
PCT Pub. No. WO2020/173887, PCT Pub. Date Sep. 3, 2020.
Claims priority of application No. 1901916 (FR), filed on Feb. 25, 2019.
Prior Publication US 2022/0145965 A1, May 12, 2022
Int. Cl. F16H 3/00 (2006.01); F16H 61/00 (2006.01); F16H 61/02 (2006.01)
CPC F16H 3/006 (2013.01) [F16H 61/0025 (2013.01); F16H 61/0206 (2013.01); F16H 2200/0021 (2013.01); F16H 2200/0034 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A two-speed torque transmission device for a vehicle comprising at least one electric motor, the torque transmission device comprising:
a first clutch comprising a first input element capable of being driven by the electric motor, and a first output element, torque being transmitted between the first input element and the first output element when the first clutch is closed,
a second clutch comprising a second input element capable of being driven by the electric motor, and a second output element, torque being transmitted between the second input element and the second output element when the second clutch is closed,
a transmission member,
a first transmission mechanism arranged to transmit torque between the first output element and the transmission member, according to a first gear ratio, the first gear ratio being the slowest gear ratio of the torque transmission device,
a second transmission mechanism arranged to transmit torque between the second output element and the transmission member, according to a second gear ratio different from the first gear ratio, the second gear ratio being the fastest gear ratio of the torque transmission device,
a connection element arranged to permit or interrupt mutual rotational drive between the first output element of the first clutch and the transmission member, by the first transmission mechanism,
wherein the connection element is arranged to interact solely with the first transmission mechanism associated with the first gear ratio.