Page 40 - i-MeIV Product Information

Heater & A/C

9-5 Heater & A/C system: System control
“A/C ECU(HVAC ECU)” is adopted on i-MiEV as same as petrol powered “i” .
“Compressor & Heater control ECU” is additionally applied.
Both ECUs are connected by serial communication.
“Compressor & Heater control ECU” controls the following devices according to the signal from EV-ECU and A/C ECU
via CAN-C.
-A/C compressor
-Electric water heater
-Electric water pump
-Air selection damper (Outside air/Re circulated air) motor

Mode selection damper
A/C Thermistor motor

Air mix damper motor
Heater water temperature sen-
sor

Heater control transistor
Outside air temperature sensor A/C-ECU
HVAC-ECU

Mode selection damper Poten- Heater fan & Motor kit
tiometer

Air mix damper
Potentiometer

Local com.

Electrical water pump
A/C refrigerant pressure switch

Air selection damper Heater
(Outside air/Re circulated air)
Potentiometer Compressor
& Local com. A/C compressor
Heater control Inverter
ECU

Heater control transistor

Heater control transistor
Heater control transistor

CAN com.

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