THS II (TOYOTA HYBRID SYSTEM II)
02HTH17TE
Hybrid
Transaxle
Front
Wheel
: Electrical Path
: Mechanical Power Path
Engine
Compound
Gear Unit
MG1
MG2
Inverter
Assembly
HV
Battery
02DTH86Y
02DTH99Y
Sun Gear
(MG1)
Carrier
(Engine)
Ring Gear
(Output)
rpm
0
(+)
(+)
(+)
(-)
(-)
(-)
Sun Gear
(MG1)
Carrier
(Engine)
Ring Gear
(Output)
TH-17
7. During Deceleration Driving/(F)
Deceleration in “D” Range
While the vehicle is decelerated with the shift lever in the D position, the engine is turned OFF and the
motive force changes to zero. At this time, the wheels drive MG2, causing MG2 to operate as a generator,
charging the HV batteries.
If the vehicle decelerates from a higher speed, the engine maintains a predetermined speed without
stopping, in order to protect the planetary gear unit.
During deceleration, the ring gear is rotated by the rear wheels. Under this condition, due to the engine
being inactive, the rotational speed of the carrier is 0 rpm. In addition, since MG1 does not generate any
torque, no torque acts on the sun gear. However, the sun gear (MG1) rotates freely in the (-) direction
balancing the rotating ring gear (Output).
Nomographic Chart
Power Split Planetary Gear Unit Operation
Condition of Power Split Planetary Gear Unit
Sun Gear (MG1)
Carrier (Engine)
Ring Gear (Output)
Rotational Direction
-
0
+
Torque Condition
0
0
0
Содержание Camry Hybrid AHV40
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