Nissan Qashqai J11. Manual — part 950
SYSTEM
BRC-37
< SYSTEM DESCRIPTION >
[WITH ESP]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
ACTIVE TRACE CONTROL FUNCTION
ACTIVE TRACE CONTROL FUNCTION : System Description
INFOID:0000000010329800
• Active trace control function controls the braking utilizing the ABS actuator and electric unit (control unit),
depending on cornering condition calculated from driver's steering input and plural sensors.
• Active trace control function is aimed to enhance traceability at corners and smooth the vehicle movement to
provide confident driving.
• When the ESP/VDC OFF switch is used to turn OFF the ESP/VDC system, the active trace control system is
also turned OFF.
• When the active trace control is operated, active trace control graphics are shown on the information display
of combination meter. These are shown only when “Chassis control” is selected on the information display.
Refer to
MWI-17, "INFORMATION DISPLAY : System Description"
• When the active trace control is not functioning properly, the master warning lamp illuminates. Warning mes-
sage “Chassis control” will also appear on information display.
NOTE:
• The active trace control may not be effective depending on the driving condition. Always driving carefully and
attentively.
• Brake pedal may vibrate and brake pedal feel may change during active trace control operation. Also opera-
tion noise may be noticeable during operation. These are not abnormal conditions.
• When the active trace control is selected OFF, some functions will be kept ON to assist driver. (For example,
avoidance condition.)
OPERATION CHARACTERISTICS
Component
Signal description
ECM
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Accelerator pedal position signal
• Engine speed signal
• Engine torque signal
Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• Engine torque request signal
TCM
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Current gear position signal
Chassis control module
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Active trace control signal
Combination meter
Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• Brake fluid level switch signal
• Parking brake switch signal
Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• Brake warning lamp signal
• ABS warning lamp signal
• ESP/VDC warning lamp signal
• ESP/VDC OFF indicator lamp signal
Steering angle sensor
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Steering angle sensor signal
• Steering angle sensor malfunction signal
BRC-38
< SYSTEM DESCRIPTION >
[WITH ESP]
SYSTEM
Active trace control helps enhance the transition from braking into
and then accelerating out of corners. Active trace control utilizes the
vehicle
′
s electrically-driven intelligent brake system to help improve
cornering feel by automatically applying brakes. Furthermore, Active
trace control will apply selective braking to help create increased
steering response in S-turns. For example, if driving through an S-
turn that starts with steering to the right, the right-side brakes are
engaged to create a yaw momentum and help turn the vehicle.
• Brake control amount is controlled according to steering operation status by the driver and vehicle cornering
status.
JPFIC0167GB
JSFIA2098GB
SYSTEM
BRC-39
< SYSTEM DESCRIPTION >
[WITH ESP]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
• During cornering, the brake control system limits changes in steer-
ing angle by controlling the inner ring brakes according to acceler-
ator pedal operation and allows smooth movement of the vehicle
to achieve stable cornering.
SYSTEM DIAGRAM
INPUT SIGNAL AND OUTPUT SIGNAL
Major signal transmission between each unit via communication lines is shown in the following table.
JSFIA2009GB
ALFIA0422GB
BRC-40
< SYSTEM DESCRIPTION >
[WITH ESP]
SYSTEM
WARNING/INDICATOR/CHIME LIST
WARNING/INDICATOR/CHIME LIST : Warning Lamp/Indicator Lamp
INFOID:0000000010329801
Component
Signal description
ECM
Mainly transmits the following signals to chassis control module via CAN communication.
• Accelerator pedal position signal
• Engine torque signal
• Engine speed signal
TCM
Mainly transmits the following signals to chassis control module via CAN communication.
• Current gear position 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
• ABS operation signal
• TCS operation signal
• VDC operation signal
• Stop lamp switch signal
• Vehicle speed signal (ABS)
• Yaw rate signal
• Side G signal
• Decel G signal
• ESP/VDC OFF switch signal
• Brake fluid pressure signal
• Steering angle sensor signal
Mainly receives the following signals from chassis control module via CAN communication.
• Active trace control signal
Steering angle sensor
Mainly transmits the following signals to chassis control module via CAN communication.
• Steering angle sensor signal
Chassis control module
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Active Trace Control signal
• Drive mode signal
Display control unit
Mainly transmits the following signals to chassis control module via CAN communication line.
• System selection signal
Combination meter
Mainly receives the following signals from chassis control module via CAN communication.
• Chassis control malfunction signal
• Active trace control display signal
Name
Design
Layout/Function
ABS warning lamp
or
For layout: Refer to
BRC-28, "ABS FUNCTION : System Description"
.
For function: Refer to
BRC-125, "Component Function Check"
Brake warning lamp
or
For layout: Refer to
BRC-36, "BRAKE FORCE DISTRIBUTION FUNCTION : System De-
For function: Refer to
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