Mitsubishi LANCER EVOLUTION-VII 2001, Техническое руководство

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POWER TRAIN - ACD and AYC
2-19
When the proportional valve is OFF, the oil pressure from
the electric pump will be cut off by the proportional valve.
For this reason, oil pressure will be supplied to the ACD
or AYC and each system will be set into the non-operating
state.
When the proportional valve turns ON, the proportional valve
opens, and the oil pressure from the electric pump will be
supplied to the ACD hydraulic multi plate clutch or AYC
directional valve.
Directional valve
Supplies the oil pressure required for controlling the AYC
clutch according to the instructions of the 4WD-ECU.
When the directional valve is OFF, the oil pressure from the
proportional valve <AYC> will be cut off by the directional
valve. For this reason, the clutch will set into the non-operating
state without oil pressure supplied to each clutch of the AYC.
When oil pressure supply signal for the AYC clutch <Right
side> is sent to the directional valve from the 4WD-ECU,
the directional valve will move to the right. As a result, the
oil pressure from the proportional valve <AYC> will be supplied
to the AYC clutch <Right side>.
If the oil pressure supply signal to the AYC clutch <Left side>
is sent to the directional valve, the directional valve will move
to the left.
From electric pump
Proportional
valve (OFF)
From electric pump
Return
To ACD hydraulic multi plate
clutch or AYC directional valve
Proportional
valve (ON)
Directional
valve
From proportional
valve <AYC>
Directional
valve (OFF)
To clutch
<Right side>
To clutch
<Left side>
From proportional valve
<AYC>
Directional valve
(Right side: ON)
To clutch
<Right side>
To clutch
<Left side>