Electronically Controlled Continuously Variable Transaxle

AUTOMATIC TRANSAXLE - HYBRID

ELECTRONICALLY CONTROLLED CONTINUOUSLY VARIABLE TRANSAXLE
The primary objective of the Electronically Controlled Continuously Variable Transaxle (eCVT) is to deliver torque to the drive axles of the vehicle. The eCVT transmits input torque from the internal combustion engine, or uses electrical power from the high voltage traction battery. The electrical power is converted into mechanical power by the traction motor and the generator motor. The eCVT operates in several different modes, and under certain conditions can transmit power from the traction motor and engine simultaneously or independently.

The eCVT has the following internal components:
- 65 kW traction motor
- 28 kW generator
- One-way clutch
- Planetary gear set

The key eCVT components are:
- Generator motor
- Traction motor
- Transaxle control module

PLANETARY GEAR SET
The planetary gear set, the generator motor, and the traction motor are internal to the electronically controlled CVT. The planetary gear set mechanically links the internal combustion engine, the electric traction motor, and the electric generator together. It distributes power between the 3 elements that it connects. The engine is connected to the carrier, the generator motor is connected to the sun gear, and the traction motor is connected to the ring gear of the planetary gear set.