Honda ACCORD HYBRID 2005 Service Manual page 693

IMA System
The IMA (Integrated M o t o r Assisted) system is a highly-efficient parallel hybrid drive system consisting of a main
power unit (gasoline-fueled engine) and the assist unit (electric IMA motor).
The engine is 60 °, V6 power plant that has a displacement of 2,997 liters. To reduce fuel c o n s u m p t i o n , the IMA system
is equipped w i t h i-VTEC, lean-burn control and valve pause system that reduces engine p u m p i n g loss and increases
the regeneration of electric energy during deceleration.
The IMA motor, directly connected to the engine crankshaft, functions as a generator during deceleration, an engine
starter, and a motor to assist the engine that drives the wheels.
The IMA system contains the DC 144 V battery and AC synchronous motor, control system, and related accessories.
For optimal electrical safety, the intelligent power unit (IPU) is located behind the rear seat.
IPU M O D U L E
FAN
MOTOR POWER
C A B L E
IMA MOTOR
TRANSMISSION
CLIMATE
CONTROL
UNIT
" Regenerative
Performance/State
of Charge
A/C
COMPRESSOR
DRIVER
- Fan Control
Assist/
. Regenerative
Control
12 V
_ Generative
Quantity
Control
CONTACTOR
State of Charge —
BATTERY
MODULE
SWITCH
(cont'd)
12-15