US 11,724,585 B2
Two motor power-split hybrid system with selectable one-way clutch enabled lockable planetary gear sets for two-speed dual motor EV and engine plus dual motor drive modes
Brian Schneidewind, Ann Arbor, MI (US); Nicholas Vernon, Brighton, MI (US); and Geoffrey D. Gaither, Brighton, MI (US)
Assigned to TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC., Plano, TX (US)
Filed by TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC., Plano, TX (US)
Filed on Apr. 29, 2022, as Appl. No. 17/733,168.
Application 17/733,168 is a division of application No. 16/582,431, filed on Sep. 25, 2019, granted, now 11,364,787.
Prior Publication US 2022/0258592 A1, Aug. 18, 2022
Int. Cl. B60K 6/442 (2007.10); B60K 6/26 (2007.10); B60K 6/365 (2007.10); B60K 6/387 (2007.10); B60K 6/383 (2007.10)
CPC B60K 6/442 (2013.01) [B60K 6/26 (2013.01); B60K 6/365 (2013.01); B60K 6/383 (2013.01); B60K 6/387 (2013.01); B60K 2006/268 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A hybrid drive train, comprising:
an input shaft that inputs motive power from an internal combustion engine;
an output shaft that outputs to drive wheels of a vehicle;
a first electric motor;
a compound planetary gear set comprising two sun gears and two carriers, wherein an outer sun gear of the sun gears functions as an inner ring gear,
the first electric motor is connected to an inner one of the sun gears, which provides mechanical power through a reduction gear and a differential to drive the wheels of the vehicle;
a second electric motor coupled with the output shaft is connected to the outer sun gear; and
a selectable one-way clutch to control the sun gears and an outer ring gear and the carriers,
the selectable one-way clutch is configured to operate as a brake to stop rotation of both of the carriers, configured to operate as a brake to stop rotation of the outer ring gear, as well as configured as a one way clutch to transfer rotation of the two carriers for a second EV mode and an engine only mode.