Toyota Camry Hybrid AHV40 Manual page 107

JTRANSAXLE UNIT
1. General
D This hybrid transaxle consists primarily of MG1 and MG2, a compound gear unit (which consists of a
motor speed reduction planetary gear unit and a power split planetary gear unit), a counter gear unit, and
a differential gear unit.
D This transaxle has a three-shaft configuration. The compound gear unit (consisting of the motor speed
reduction planetary unit and a power split planetary gear unit), MG1 and MG2 are provided on the main
shaft. The counter driven gear and the final drive gear are provided on the second shaft. The differential
ring gear and the differential gear unit are provided on the third shaft.
D The engine, MG1 and MG2 are mechanically joined via the compound gear unit.
D The compound gear unit contains a motor speed reduction planetary gear unit and a power split planetary
gear unit. The motor speed reduction planetary gear unit, whose purpose is to reduce motor speed, is used
to enable the high-speed, high-output MG2 to adapt optimally to the power split planetary gear unit. The
power split planetary gear unit splits the motive force of the engine two ways: one to drive the wheels, and
the other to drive the MG1, so that it can function as a generator.
D In the motor speed reduction planetary gear unit, the sun gear is coupled to the output shaft of MG2, and
the carrier is fixed.
Sun Gear
MG2
Oil Pump
Ring Gear
Counter Drive
Gear
Counter Driven
Gear
CHASSIS - P311 HYBRID TRANSAXLE
Compound
Gear Unit
Motor Speed
Power Split
Reduction
Planetary Gear
Planetary Gear
Compound Gear
Parking Gear
Carrier Carrier
Final Driven
Gear
Transaxle
Damper
Sun Gear
MG1
Ring Gear
Final Drive Gear
Differential
Gear Unit
CH-5
Engine
02HCH35Y