Toyota Camry Hybrid AHV40, Руководство пользователя

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BODY ELECTRICAL - AIR CONDITIONING
02HBE40Y
A / C inverter
Discharge Hose Port
Suction Hose Port
Service Tip
In order ensure the proper insulation of the internal high-voltage portion of the compressor and the
compressor housing, the ’07 Camry Hybrid model has adopted a compressor oil (ND11) with a high
level of insulation performance. Therefore, never use a compressor oil other than the ND11 type
compressor oil or its equivalent.
BE-51
4. A/C Compressor
General
Along with the installation of the hybrid unit on the ’07 Camry Hybrid model, an ES27 electric inverter
compressor that is driven by a motor is used. The basic construction and operation of this compressor
are the same as the ordinary scroll compressor, except that it is driven by an electric motor.
The Air Conditioning (A / C) inverter is integrated with the compressor.
The electric motor is actuated by 3-phase alternating current (244.8 V) supplied by the A/ C inverter. As
a result, the air conditioning control system on the ’07 Camry Hybrid model is actuated without
depending on the operation of the engine, thus realizing a comfortable air conditioning system and low
fuel consumption.
Due to the use of an electric inverter compressor, the compressor speed can be controlled at the required
speed calculated by the A / C ECU. Thus, the cooling and dehumidification performance and power
consumption have been optimized.
Low-moisture permeation hoses are used for the suction and discharge hoses at the compressor in order
to minimize the entry of moisture into the refrigeration cycle.
The compressor uses high-voltage alternating current. If a short or open circuit occurs in the compressor
wiring harness, the THS ECU will cut off the A / C inverter circuit in order to stop the power supply to
the compressor.
For details on the electric inverter compressor control effected by the A / C ECU, see page BE-59.