US 12,441,326 B2
Drive unit controlling torque in drive system mounted on vehicle
Shinjiroh Kuze, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on May 20, 2024, as Appl. No. 18/668,393.
Claims priority of application No. 2023-134228 (JP), filed on Aug. 21, 2023.
Prior Publication US 2025/0065883 A1, Feb. 27, 2025
Int. Cl. B60W 40/06 (2012.01); B60W 10/10 (2012.01)
CPC B60W 40/06 (2013.01) [B60W 10/10 (2013.01); B60W 2552/20 (2020.02); B60W 2710/1005 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A drive unit mounted on a vehicle, comprising:
a motor;
a motor-side shaft having first splines on an outer peripheral surface and rotated by torque from the motor;
a gear-side shaft having second splines on an outer peripheral surface and disposed coaxially with the motor-side shaft; and
a coupling sleeve disposed to extend from the motor-side shaft to the gear-side shaft and having third splines on an inner peripheral surface to engage with the first splines and the second splines, wherein the coupling sleeve is configured to be movable along an axial direction, and at least one of a first engagement length for which the third splines engage with the first splines and a second engagement length for which the third splines engage with the second splines is varied according to an axial position of the coupling sleeve.