Mitsubishi Lancer Evolution 7. Manual — part 18
POWER TRAIN - ACD and AYC
2-25
SERVICE DATA
Item No.
Item
Unit
01
Wheel speed sensor <FR>
km/h (Displayed for every 1 km/h)
02
Wheel speed sensor <FL>
km/h (Displayed for every 1 km/h)
03
Wheel speed sensor <RR>
km/h (Displayed for every 1 km/h)
04
Wheel speed sensor <RL>
km/h (Displayed for every 1 km/h)
05
Wheel speed sensor <FR> (0.2 km/h)
km/h (Displayed for every 0.2 km/h)
06
Wheel speed sensor <FL> (0.2 km/h)
km/h (Displayed for every 0.2 km/h)
07
Wheel speed sensor <RR> (0.2 km/h)
km/h (Displayed for every 0.2 km/h)
08
Wheel speed sensor <RL> (0.2 km/h)
km/h (Displayed for every 0.2 km/h)
09
Vehicle speed
km/h
10
Battery voltage
V
11
Proportional valve current<ACD>
mA
12
Proportional valve current <AYC>
mA
13
TPS voltage
mV
14
Longitudinal G sensor voltage
V
15
Lateral G sensor voltage
V
16
Steering angle
deg
17
Steering angle speed
deg/s
18
Pressure sensor
MPa
19
Pressure sensor power supply
V
20
Valve power supply
V
21
Steering wheel sensor voltage <ST-1>
V
22
Steering wheel sensor voltage <ST-2>
V
23
Steering wheel sensor voltage <ST-N>
V
51
Idle switch
ON/OFF
52
Steering wheel sensor <ST-N>
ON/OFF
53
Steering wheel sensor <ST-1>
ON/OFF
54
Steering wheel sensor <ST-2>
ON/OFF
55
Steering wheel sensor learning <ST-N>
ON/OFF
56
Stop lamp switch
ON/OFF
57
Motor monitor
ON/OFF
58
Oil pressure state
HIGH/LOW
59
Directional valve <Right>
ON/OFF
60
Directional valve <Left>
ON/OFF
61
ABS monitor
ON/OFF
62
Parking brake switch
ON/OFF
63
ACD mode switch
ON/OFF
POWER TRAIN - ACD and AYC
2-26
ACTUATOR TEST
Item No.
Content
Drive Specifications
Driving
time
Check
01
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.
02
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.
03
Oil
amount
check
Operates the directional
valve to the left and right.
20
sec-
onds
Check the oil amount of the reservoir tank.
04
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.
05
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.
06
AYC clutch op-
eration
check
<Left side>
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.
07
AYC clutch op-
eration
check
<Right side>
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.
08
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.
D
The drive shaft incorporates B.J.-T.J. type
constant velocity joints with high transmission
efficiency and low vibration and noise.
D
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)
g
Bearing (outside diameter) mm
87*
1
Drive
shaft
Joint type
Outside
B.J.
shaft
Inside
T.J.
Shaft length*
2
× Shaft diameter mm
Left
350 × 26
Right
427 × 26
NOTE
*
1
: The wheel bearing is integrated with hub,only the outer diameter is shown.
*
2
: 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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