Mitsubishi Evolution X. Manual — part 144

MANUAL TRANSAXLE

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MANUAL TRANSAXLE

22A-3

SECTIONAL VIEW

AC705183 AD

1 2

3 4

5

6

7

8

9

10

11

12

1. 5th speed gear

2. 4th speed gear

3. Rev idler gear B

4. 3rd speed gear

5. Rev idler gear A

6. Input shaft

7. Front differential (Helical gear type)

8. Hypoid pinion

9. Center differential

10. 1st speed gear

11. 2nd speed gear

12. Output shaft

MANUAL TRANSAXLE

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MANUAL TRANSAXLE

22A-4

INFORMATION OF CONSTRUCTION AND OPERATION

M2222000300019

The width of each gear tooth is increased, and the
1st and 3rd gears are shared with the reverse gear,
keeping the increase of transaxle length to a mini-
mum.

When the vehicle is driven backward, two idler gears
engaged with 1st and 3rd gears are synchronized to
transfer the torque.

AC705887AD

To A

A

Reverse idler gear B

1st speed gear

Synchronizer (For reverse gear)

3rd speed gear

Reverse idler gear A

TRANSAXLE CONTROL

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MANUAL TRANSAXLE

22A-5

TRANSAXLE CONTROL

GENERAL INFORMATION

M2222000200023

With the transaxle control, a cable type is adopted
with which the gear is shifted through a cable
between the transaxle and shift lever. The shift lever
and control cable offer the following advantages.

Shift lever

• The spherical rotation fulcrum type, which does

not have much looseness, has been adopted to
the rotating shaft.

• The base bracket is made of resin to reduce

weight.

• The lever has been made to have a shorter

stroke for improved operability.

Control cable

• The one-touch assembly of cable ends at the

transaxle side and the shift lever side has been
made available to improve serviceability. (Except
for the transaxle side end of shift cable)

• A socket with elastic body has been adopted to

the cable (transaxle side) joint to reduce sticking
or tightness.

Shift knob

• Spherical shift knob is adopted for easier opera-

tion.

• The size is designed to allow the operation with

racing gloves put on.

• Soft material and leather are used with the knob

to reduce damage to hand during sport driving.

SUPER ALL WHEEL CONTROL (S-AWC)

GENERAL INFORMATION

M2223000100063

S-AWC (Super All Wheel Control) performs an inte-
grated control of ACD (Active Center Differential),
AYC (Active Yaw Control), ASC (Active Skid Con-
trol), and ABS (Anti-lock Brake System) under the
newly developed, 4-wheel controlling ideal AWC (All
Wheel Control). This vehicle movement integrated
control system offers the "superior drivability at
driver's will" and "excellent stability".

NOTE:

.

•

For more information on ABS, refer to GROUP
35B.

•

For more information on ASC, refer to GROUP
35C.

AC705546

Shift knob

Shift lever assembly

Transaxle assembly

Select cable

Shift cable

AC

SUPER ALL WHEEL CONTROL (S-AWC)

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MANUAL TRANSAXLE

22A-6

INFORMATION OF CONSTRUCTION AND OPERATION

M2222000300020

AWC-ECU performs a calculation based on the infor-

mation from ECU, sensors, and switches. Then,

based on the calculation value, it appropriately oper-

ates the hydraulic units (for ACD, AYC, ASC, ABS) to

control in response to the driver's operations and

vehicle behaviors.

.

AC705119AC

AYC differential

Hydraulic unit

Wheel speed sensor

AWC switch

ASC OFF switch

Multi information display

G and yaw rate sensor

Steering wheel sensor

ASC-ECU and hydraulic unit

ACD transfer

Engine

Transmission

TC-SST-ECU
<Vehicles with TC-SST>

Engine-ECU

AWC-ECU

ETACS-
ECU

CAN bus communication lines
Electric wiring
Hydraulic piping

Item

Control content

ACD transfer

The basic structure and operation are the same with EVOLUTION IX, but the
strength of each part has been enhanced to support the high-powered
engine.

AYC differential

The basic structure and operation are the same with EVOLUTION IX, but the
strength of each part has been enhanced to support the high-powered
engine.

Hydraulic unit (For ACD/AYC) The basic structure and operation are the same with EVOLUTION IX, but the

shape has been changed to accommodate the change of on-vehicle layout.

Hydraulic unit (for ASC/ABS) In addition to the brake control of ASC and ABS, it also performs the AYC

brake control.

AWC-ECU

Based on the information obtained via CAN communication and others, it
appropriately controls ACD, AYC, ASC, and ABS.

Sensors

Adding to the sensors (throttle position sensor, G sensor, steering sensor,
wheel speed sensor) that provided information to EVOLUTION IX, the
following sensors have been equipped: Engine torque sensor, engine speed
sensor, yaw rate sensor, and wheel cylinder brake fluid pressure sensor.