US 12,122,241 B2
Driving apparatus for vehicle
Atsushi Tabata, Okazaki (JP); Koichi Okuda, Toyota (JP); Koji Takaira, Okazaki (JP); Yuuki Makino, Aichi-gun (JP); Akinori Homan, Toyota (JP); Yosuke Akiyama, Toyota (JP); Akira Ijichi, Odawara (JP); and Kunihiko Usui, Fuji (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on May 26, 2022, as Appl. No. 17/804,197.
Claims priority of application No. 2021-094771 (JP), filed on Jun. 4, 2021.
Prior Publication US 2022/0388493 A1, Dec. 8, 2022
Int. Cl. B60K 6/52 (2007.10); B60W 10/06 (2006.01); B60W 10/08 (2006.01); B60W 10/119 (2012.01); B60W 20/13 (2016.01); B60W 20/15 (2016.01)
CPC B60K 6/52 (2013.01) [B60W 10/06 (2013.01); B60W 10/08 (2013.01); B60W 10/119 (2013.01); B60W 20/13 (2016.01); B60W 20/15 (2016.01); B60W 2510/244 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A driving apparatus for a vehicle that includes a pair of front wheels and a pair of rear wheels, the driving apparatus comprising:
a power source including an engine and a first rotary electric machine;
a first output shaft configured to receive a power from the power source, and to output the power to one of the pair of front wheels and the pair of rear wheels;
a second output shaft configured to output the power to the other of the pair of front wheels and the pair of rear wheels;
a power distribution device configured to distribute a part of the power received by the first output shaft, to the second output shaft, and
a control device,
wherein the power distribution device includes a second rotary electric machine, and a differential device including a first rotary element connected to the second rotary electric machine, a second rotary element connected to the first output shaft and a third rotary element connected to the second output shaft, such that the part of the power received by the first output shaft is distributed to the second output shaft, with a reaction force being applied to the first rotary element owing to an electric-power generation torque of the second rotary electric machine,
wherein the control device includes a torque-split control portion which is configured to execute an electric-power generation control for controlling the electric-power generation torque of the second rotary electric machine such that a power distribution ratio between the first and second output shafts becomes a target distribution ratio, and which is configured to control a total torque of the power source including the engine and the first rotary electric machine such that a requested drive torque is obtained irrespective of the electric-power generation torque of the second rotary electric machine, and
wherein the torque-split control portion includes an electric-power-consumption control portion configured to execute an electric-power consuming control to supply at least a part of a generated electric power obtained by the electric-power generation control directly to the first rotary electric machine to drive the first rotary electric machine.