TECHNICAL FEATURES
GENERAL
00-11
ACTIVE STABILITY CONTROL SYSTEM (ASC)
Active Stability Control System (ASC) has been
installed.
•
The ASC system integrates the traction control
(TCL) function and skid 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 behavior,
avoiding the critical state.
•
ASC has been added to the transmission <twin
clutch sport shift transmission (TC-SST)
*1
> and
active center differential (ACD)
*2
control, and the
controls are integrated to improve the vehicle sta-
bility <Vehicles with AWD>.
•
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>.
NOTE:
.
•
*1
: For the details on twin clutch sport shift trans-
mission (TC-SST), refer to GROUP 22B
−
Twin
Clutch Sport Shift Transmission (TC-SST)
P.22B-2
.
•
*2
: For the details on active center differential
(ACD), refer to GROUP 22B
−
Active Center Dif-
ferential (ACD)
P.22B-19
.
•
By the integrated control with the anti skid brake
system (ABS), the system stabilizes the vehicle
attitude and at the same time secures the driving
force.
AC901704
AWC-ECU <AWD>
<AWD>
ABS SERVICE
REQUIRED
BRAKE SYSTEM
SERVICE REQUIRED
ASC SYSTEM
SERVICE REQUIRED
<FWD>
CHECK
ASC
OFF
<Except Color liquid crystal display>
<Color liquid crystal display>
<Vehicles for CANADA>
<Vehicles for USA>
<Vehicles for CANADA>
Brake warning light
ABS warning light
ASC OFF
AC
<CVT>
Wheel speed sensor
Engine control
module (ECM)
Data link
Magnetic encoder
for wheel speed
detection
Magnetic encoder for wheel speed detection
Stop light
switch
CVT-ECU
TC-SST ECU
Steering wheel
G & yaw rate
sensor
sensor
connector
ASC OFF
switch
Brake fluid pressure
sensor, Hydraulic unit,
ASC control unit (ASC-ECU)
ABS warning
display
display
Brake warning
ABS warning light
Brake warning light
Brake warning light
ASC operation
display
ASC warning
display
ASC OFF
display
<AWD>
Wheel speed sensor
Wheel speed sensor
Magnetic encoder
for wheel speed
detection
<Vehicles for USA>
Brake warning light
ASC operation display
ASC warning display
ABS warning
display
display
Brake warning
ASC operation
display
ASC warning
display
SERVICE
REQUIRED
SERVICE
REQUIRED