Mitsubishi Outlander (2013+). Manual — part 62

35C-1

GROUP 35C

ACTIVE STABILITY

CONTROL SYSTEM

(ASC)

CONTENTS

GENERAL INFORMATION . . . . . . . .

35C-2

CONSTRUCTION DIAGRAM. . . . . . .

35C-8

SENSOR . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-8

ACTUATOR . . . . . . . . . . . . . . . . . . . . . . . . .

35C-8

ASC-ECU . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-9

DESCRIPTION OF CONSTRUCTION AND
OPERATION . . . . . . . . . . . . . . . . . . . .

35C-15

GENERAL INFORMATION

ACTIVE STABILITY CONTROL SYSTEM (ASC)

35C-2

GENERAL INFORMATION

M2355000100683

Active Stability Control System (ASC) has been
installed.

• The ASC system integrates the traction control

(TCL) function and stability control function.

• When TCL detects the slip of the driving wheel

(ex. during startup on low

µ road), it automatically

applies the brakes to the slipping driving wheel.
At the same time, TCL reduces the engine output
and prevents the wheel spin when it determines
that the engine torque is too high for the road sur-
face

µ.

• When the ASC-ECU determines that the vehicle

is in a dangerous condition, it reduces the engine
output and applies brake force to four wheels
independently to control the vehicle behaviour,
avoiding the critical state.

• Hill Start Assist (HSA) function has been adopted

to hold and prevent the roll back of the vehicle
when the vehicle is on a slope and the foot is
transferred from the brake pedal to the accelera-
tor pedal <Vehicles with HSA>.

• The brake assist (BA) control determines an

emergency braking and increases the braking
force for the drivers who cannot depress the
brake sufficiently when the emergency brake is
applied. This shortens the distance to stop or
reduces the collision speed.

NOTE: By the integrated control with the anti-skid
brake system (ABS), the system stabilises the vehi-
cle attitude and at the same time secures the driving
force.

GENERAL INFORMATION

ACTIVE STABILITY CONTROL SYSTEM (ASC)

35C-3

CONSTRUCTION DIAGRAM

ACB06012

1

2

1

2

AB

18

1

2

19 <4WD>

5

6

3

17

16

4, 7, 8, 20

9

11

14

13, 15

9

11

14

12

10

15

13

13, 15

<Standard meter>

<High contrast meter>

<4WD>

GENERAL INFORMATION

ACTIVE STABILITY CONTROL SYSTEM (ASC)

35C-4

MAIN COMPONENTS AND FUNCTIONS

Name of part

Number Functional description

Sensor

Wheel speed sensor

1

Outputs the frequency signal in proportion to the rotation
speed of each wheel to ASC-ECU.

Magnetic encoder for
wheel speed detection

2

The wheel speed sensor is a pulse generator. When the
magnetic encoder for wheel speed detection (a plate on
which north and south pole sides of the magnets are
arranged alternately) rotates, it outputs frequency pulse
signal in proportion to each wheel speed.

Stop lamp switch

3

Outputs the signal indicating whether the brake pedal is
depressed or not to ASC-ECU.

G & yaw rate sensor

4

Is integrated in the ASC-ECU, detects the yaw rate and
longitudinal and lateral acceleration of a vehicle, and sends
a signal to the ASC-ECU.

Steering wheel sensor

5

Detects the steering angle of the steering wheel, and
outputs signal to ASC-ECU via the CAN bus line.

ASC OFF switch

6

Outputs the ON/OFF signal for ASC to ASC-ECU.

Brake fluid pressure
sensor

7

Integrated into the hydraulic unit, and outputs the signal for
the brake fluid pressure in the master cylinder to ASC-ECU.

Actuator

Hydraulic unit

8

Drives the solenoid valve using the signal from ASC-ECU,
and controls the brake fluid pressure for each wheel.

ABS warning lamp

9

Informs the driver of the system status by illuminating,
flashing, or turning off the ABS warning lamp according to
the signal from ASC-ECU.

ABS warning display

10

Informs the driver of the system status by illuminating or
turning off the ABS warning display according to the signal
from ASC-ECU.

Brake warning lamp

11

Used as the brake warning lamp for the parking brake,
brake fluid level, and EBD control. Informs the driver of the
system status by illuminating or turning off the brake
warning lamp according to the signal from ASC-ECU.

Brake warning display

12

Used as the brake warning display for the brake fluid level,
and EBD control. Informs the driver of the system status by
illuminating or turning off the brake warning display
according to the signal from ASC-ECU.

ASC operation display

and lamp

*1

13

Informs the driver of the system status by flashing when the
system operates according to the signal from ASC-ECU.

ASC OFF lamp

14

Informs the driver of the system shutdown by illuminating by
the signal from ASC-ECU. Informs the driver that the brake
system overheats and the brake TCL stops by flashing the
ASC OFF lamp for the duration of approximately 2 Hz.

ASC warning display

and lamp

*1

15

TCL function and stability control function, HSA function use

the same display and lamp

*1

. Depending on the signal from

ASC-ECU, the ASC warning display and lamp

*1

informs the

driver of the system status by illuminating when the system

has malfunction (When the ASC warning display and lamp

*1

is illuminated, the HSA function does not operate).