Toyota Camry Hybrid AHV40, Руководство пользователя

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THS II (TOYOTA HYBRID SYSTEM II)
02DTH76Y
U V W
IPM
Motor
Generator
ON
ON
IGBT
(+)
(-)
U V
W
02DTH77Y
U V W
ON
ON
(+)
(-)
U
V W
02DTH78Y
U V
W
ON
ON
(+)
(-)
U
V W
TH-47
4. MG1 and MG2 Main Control
General
MG1, which is rotated by the engine, generates high voltage (alternating current) in order to operate MG2
and charge the HV battery. Also, it functions as a starter to start the engine.
MG2 is driven by electrical power from MG1 or HV battery, and generates motive force for the front
wheels.
MG2 generate electricity to charge the HV battery (regenerative brake control) during braking, or when
the accelerator pedal is not being depressed.
The MG ECU, which follows the commands of the THS ECU, controls MG1 and MG2 via the IPM
(Intelligent Power Module), for driving the vehicle. Six IGBTs (Insulated Gate Bipolar Transistors)
switch ON and OFF to control the individual motors in accordance with the driving or generation
operation.
Motor Drive Operation
The illustration below describes the basic control for driving a motor. The IGBTs (Insulated Gate Bipolar
Transistors) in the IPM switch ON and OFF to supply a three-phase alternating current to the motor.
In order to create the motive force required of the motor generator as calculated by the THS ECU, the
MG ECU switches the IGBTs ON and OFF and controls the speed, in order to control the speed of the
motor generator.