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Mitsubishi Lancer Evolution 7. Manual - part 18

POWER TRAIN - ACD and AYC

2-25

SERVICE DATA

Item No.

Item

Unit

Wheel speed sensor <FR>

km/h (Displayed for every 1 km/h)

Wheel speed sensor <FL>

km/h (Displayed for every 1 km/h)

Wheel speed sensor <RR>

km/h (Displayed for every 1 km/h)

Wheel speed sensor <RL>

km/h (Displayed for every 1 km/h)

Wheel speed sensor <FR> (0.2 km/h)

km/h (Displayed for every 0.2 km/h)

Wheel speed sensor <FL> (0.2 km/h)

km/h (Displayed for every 0.2 km/h)

Wheel speed sensor <RR> (0.2 km/h)

km/h (Displayed for every 0.2 km/h)

Wheel speed sensor <RL> (0.2 km/h)

km/h (Displayed for every 0.2 km/h)

Vehicle speed

km/h

Battery voltage

Proportional valve current<ACD>

Proportional valve current <AYC>

TPS voltage

Longitudinal G sensor voltage

Lateral G sensor voltage

Steering angle

deg

Steering angle speed

deg/s

Pressure sensor

MPa

Pressure sensor power supply

Valve power supply

Steering wheel sensor voltage <ST-1>

Steering wheel sensor voltage <ST-2>

Steering wheel sensor voltage <ST-N>

Idle switch

ON/OFF

Steering wheel sensor <ST-N>

ON/OFF

Steering wheel sensor <ST-1>

ON/OFF

Steering wheel sensor <ST-2>

ON/OFF

Steering wheel sensor learning <ST-N>

ON/OFF

Stop lamp switch

ON/OFF

Motor monitor

ON/OFF

Oil pressure state

HIGH/LOW

Directional valve <Right>

ON/OFF

Directional valve <Left>

ON/OFF

ABS monitor

ON/OFF

Parking brake switch

ON/OFF

ACD mode switch

ON/OFF

POWER TRAIN - ACD and AYC

2-26

ACTUATOR TEST

Item No.

Content

Drive Specifications

Driving

time

Check

Bleeding

<ACD>

Outputs current to the

proportional valve accord-

ing to the steering angle.

5 minutes

Check that no air is discharged from the

bleeder screw installed on the ACD

transfer.

Bleeding

<AYC>

Outputs current to the

proportional valve accord-

ing to the steering angle to

operate

the

direction

valve.

5 minutes

Check that no air is discharged from the

bleeder screw installed on the AYC torque

transfer differential.

Oil

amount

check

Operates the directional

valve to the left and right.

sec-

onds

Check the oil amount of the reservoir tank.

Electric

pump

drive

Operates

the

electric

pump for 5 seconds.

To end of

operations

Check the operating state from the

operation sound of the electric pump.

ACD clutch op-

eration check

Operates the proportional

valve <ACD> to supply

maximum oil pressure to

the multi plate clutch.

1 minute

With the vehicle lifted up, check the

operating state according to the speed

difference between the front and rear

wheels.

AYC clutch op-

eration

check

Operates the directional

valve, and supplies maxi-

mum oil pressure to the

left side clutch.

1 minute

With the vehicle lifted up, check the

operating state according to the speed

difference between the front and rear

wheels.

AYC clutch op-

eration

check

Operates the directional

valve, and supplies maxi-

mum oil pressure to the

right side clutch.

1 minute

With the vehicle lifted up, check the

operating state from the speed difference

between the left and right rear wheels.

Control OFF

Turns OFF the electric

pump relay, and ACD

control and AYC control.

Check the difference between control ON

and OFF in actual driving.

POWER TRAIN -

Propeller Shaft

POWER TRAIN -

Propeller Shaft

2-27

PROPELLER SHAFT

3 way split 4-joint type propeller shaft with center bearing is adopted.

SPECIFICATIONS

Item

Vehicles without AYC

Vehicles with AYC

Propeller

shaft

Type

3 way split 4-joint type propeller shaft

shaft

Length × Outside

diameter mm

Front

608.5 × 65

diameter mm

Center

551 × 65

Rear

750.5 × 65

768.5 × 65

Universal

joint

Type

No.1

Cross type (caulking method)

joint

No.2

Cross type (caulking method)

No.3

Constant velocity type (LJ)

No.4

Cross type (caulking method)

Bearing

Lubricationless type needle roller bearing

Journal diameter mm

16.3

NOTE

The propeller shaft length indicates the length between the centre points of each joint.

CONSTRUCTION DIAGRAM

Front propeller shaft

Rear propeller shaft

Center propeller shaft

Sleeve yoke

No.1 joint

No.2 joint

No.4 joint

No.3 joint

(LJ)

Center bearing

DRIVETRAIN -

Front Axle

2-28

FRONT AXLE

The front axle consists of front hubs, knuckles,

wheel bearings and drive shafts, and it has the

following features.
D

The wheel bearing is unit bearing (Double-row

angular contact ball bearing) which is integrated

with hub.

The drive shaft incorporates B.J.-T.J. type

constant velocity joints with high transmission

efficiency and low vibration and noise.

ABS rotors for detecting the wheel speeds are

press-fitted to the B.J. outer wheels in vehicles

with ACD or ABS.

NOTE

1. B.J.: Birfield Joint

2. T.J.: Tripod Joint
SPECIFICATIONS

Item

Specifications

Wheel

bearings

Wheel bearing type

Hub unit bearing (Double-row angular

contact ball bearing)

Bearing (outside diameter) mm

87*

Drive

shaft

Joint type

Outside

B.J.

shaft

Inside

T.J.

Shaft length*

× Shaft diameter mm

Left

350 × 26

Right

427 × 26

NOTE

: The wheel bearing is integrated with hub,only the outer diameter is shown.

: The shaft length indicates the length between the center points of each joint.

STRUCTURAL DIAGRAM

B.J.

T.J.

Knuckle

Output shaft

Strut assembly

Drive shaft

Wheel bearing

Front hub

T.J.(L.H.)

Output shaft

T.J.(R.H.)

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