US 12,005,782 B2
Vehicle driving device
Yoshinobu Yamazaki, Tokyo (JP); Masami Oguri, Tokyo (JP); and Yoshitsugu Inoue, Tokyo (JP)
Assigned to SUBARU CORPORATION, Tokyo (JP)
Filed by SUBARU CORPORATION, Tokyo (JP)
Filed on Apr. 20, 2022, as Appl. No. 17/724,627.
Claims priority of application No. 2021-076544 (JP), filed on Apr. 28, 2021.
Prior Publication US 2022/0348069 A1, Nov. 3, 2022
Int. Cl. B60K 6/24 (2007.10); B60K 6/26 (2007.10); B60K 6/365 (2007.10); B60K 6/38 (2007.10); B60K 6/40 (2007.10); B60K 6/445 (2007.10)
CPC B60K 6/365 (2013.01) [B60K 6/24 (2013.01); B60K 6/26 (2013.01); B60K 6/38 (2013.01); B60K 6/40 (2013.01); B60K 6/445 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A vehicle driving device to be mounted on a hybrid vehicle, the vehicle driving device comprising:
an engine configured to be coupled to wheels of the vehicle via a power transmission path;
a transmission mechanism disposed on the power transmission path;
a motor generator disposed on a path coupling the engine and the transmission mechanism in the power transmission path;
a first power transmission mechanism disposed on a path coupling the engine and the motor generator in the power transmission path, the first power transmission mechanism comprising a first large-diameter rotator that is coupled to the engine and a first small-diameter rotator that is coupled to the motor generator, the first large-diameter rotator being larger in diameter than the first small-diameter rotator; and
a second power transmission mechanism on a path coupling the motor generator and the transmission mechanism in the power transmission path, the second power transmission mechanism comprising a second small-diameter rotator that is coupled to the motor generator and a second large-diameter rotator that is coupled to the transmission mechanism, the second large-diameter rotator being larger in diameter than the second small-diameter rotator.