Nissan X-Trail 32. Manual — part 360
DAS
SYSTEM
DAS-181
< SYSTEM DESCRIPTION >
[CHASSIS CONTROL]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
- The transaxle is controlled according to the brake condition.
SYSTEM DIAGRAM
NOTE:
TCM is applied to CVT models.
INPUT SIGNAL AND OUTPUT SIGNAL
Major signal transmission between each unit via communication lines is shown in the following table.
JSOIA1459GB
JSOIA1460GB
DAS-182
< SYSTEM DESCRIPTION >
[CHASSIS CONTROL]
SYSTEM
ACTIVE RIDE CONTROL FUNCTION
ACTIVE RIDE CONTROL FUNCTION : System Description
INFOID:0000000010721693
• When the VDC function is turned OFF by operation of VDC OFF switch, active ride control function also
turns OFF.
• When the active ride control (braking control) function operates, operation display can be checked on the
information display in the combination meter. Refer to
DAS-187, "INFORMATION DISPLAY (COMBINATION
METER) : Chassis Control Display"
• When a malfunction occurs in active ride control function, the master warning lamp illuminates and at the
same time the information display in the combination meter informs the driver.
NOTE:
Active ride control function may not be effective in all driving environments (traction conditions, etc.).
ENGINE CONTROL
Riding Comfort Improvement
• When driving on an uneven road surface, the rotation of each wheel, the steering angle, and the requested
traction torque are computed by the chassis control module and a command is transmitted to ECM.
• Based on the command from the chassis control module, ECM corrects the engine torque that is output.
Component parts
Signal description
ECM
Mainly transmits the following signals to chassis control module via CAN communication.
• Accelerator pedal position signal
• Estimate drive torque signal
• Request drive torque status signal
ABS actuator and electric unit (control
unit)
Mainly transmits the following signals to chassis control module via CAN communication.
• Front LH wheel speed signal
• Front RH wheel speed signal
• Rear LH wheel speed signal
• Rear RH wheel speed signal
• VDC operation signal
• Side G signal
• Brake fluid pressure signal
• Steering angle signal
Mainly receives the following signals from chassis control module via CAN communication.
• Active engine brake control signal
BCM
Mainly transmits the following signals to chassis control module via CAN communication.
• Stop lamp switch signal
IPDM E/R
Mainly transmits the following signals to chassis control module via CAN communication.
• Ignition switch ON signal
TCM
Mainly transmits the following signals to chassis control module via CAN communication.
• CVT accept permission signal
Combination meter
Mainly transmits the following signals to chassis control module via CAN communication.
• Active engine brake setting change request signal
Mainly receives the following signals from chassis control module via CAN communication.
• Curve display request signal
• Tire display request signal
• Active engine brake setting display request signal
DAS
SYSTEM
DAS-183
< SYSTEM DESCRIPTION >
[CHASSIS CONTROL]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
• By correcting the engine torque that is output, the load of weight on the front and rear wheels stabilizes and
riding comfort is improved.
- Engine torque is corrected according to driving conditions.
Steering Stability
• The rotation of each wheel, the steering angle, and the requested traction torque are computed by the chas-
sis control module and a command is transmitted to ECM.
• Based on the command from the chassis control module, ECM corrects the engine torque that is output.
JSOIA1461GB
JSOIA1462GB
DAS-184
< SYSTEM DESCRIPTION >
[CHASSIS CONTROL]
SYSTEM
• By correcting the engine torque that is output, vehicle behavior during cornering is smoothened.
- Engine torque is corrected according to steering operation conditions.
BRAKING CONTROL
• When driving on an uneven road surface, mainly the rotation speed information of each wheel is computed
by the chassis control module to estimate vertical G, and a command is transmitted to the ABS actuator and
electric unit (control unit).
• The ABS actuator and electric unit (control unit) control brake fluid pressure (brake force) according to the
command from the chassis control module.
JSOIA1463GB
JSOIA1464GB
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