Nissan Juke F15. Instruction — part 110
SYSTEM
BRC-31
< SYSTEM DESCRIPTION >
[WITH VDC]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
• Changing driving lane on a slippery road, when oversteer tendency is judged large, engine output is con-
trolled as well as brake force (brake fluid pressure) of 4 wheels. Oversteer tendency decreases.
VDC Function That Prevents Understeer Tendency
• During a cornering, brake force (brake fluid pressure) is applied on front wheel and rear wheel on the inner
side of turn. Moment directing towards the inner side of turn is generated. Understeer is prevented.
• Applying braking during a cornering on a slippery road, when understeer tendency is judged large, engine
output is controlled as well as brake force (brake fluid pressure) of four wheels. Understeer tendency
decreases.
TCS FUNCTION
JPFIC0136GB
JPFIC0137GB
JPFIC0138GB
BRC-32
< SYSTEM DESCRIPTION >
[WITH VDC]
SYSTEM
TCS FUNCTION : System Description
INFOID:0000000012199665
• Wheel spin status of drive wheel is detected by wheel sensor of 4
wheels. Engine output and transmission shift status is controlled
so that slip rate of drive wheels is in appropriate level. When wheel
spin occurs on drive wheel, ABS actuator and electric unit (control
unit) perform brake force control of LH and RH drive wheels (apply
brake force by increasing brake fluid pressure of drive wheel) and
decrease engine torque by engine torque control. Wheel spin
amount decreases. Engine torque is controlled to appropriate
level.
• TCS function can be switched to non-operational status (OFF) by
operating VDC OFF switch. In this case, VDC OFF indicator lamp
turns ON.
• VDC warning lamp blinks while TCS function is in operation and
indicates to the driver that the function is in operation.
• CONSULT can be used to diagnose the system diagnosis.
• Fail-safe function is adopted. When a malfunction occurs in TCS
function, the control is suspended for VDC function, TCS function
and brake limited slip differential (BLSD) function. The vehicle sta-
tus becomes the same as models without VDC function, TCS func-
tion and brake limited slip differential (BLSD) function. However,
ABS function and EBD function are operated normally. Refer to
SYSTEM DIAGRAM
NOTE:
• TCM is CVT models only.
• AWD control module is AWD models only.
INPUT SIGNAL AND OUTPUT SIGNAL
Major signal transmission between each unit via communication lines is shown in the following table.
JPFIC0139GB
JSFIA0654GB
SYSTEM
BRC-33
< SYSTEM DESCRIPTION >
[WITH VDC]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
*1: Communication line between yaw rate/side/decel G sensor and ABS actuator and electric unit (control unit)
*2: Models with CVT
*3: AWD models
ABS FUNCTION
ABS FUNCTION : System Description
INFOID:0000000012199666
• By preventing wheel lock through brake force (brake fluid pressure) control that is electronically controlled by
detecting wheel speed during braking, stability during emergency braking is improved so that obstacles can
be easily bypassed by steering operation.
• During braking, control units calculates wheel speed and pseudo-vehicle speed, and transmits pressure
increase, hold or decrease signals to actuator portion according to wheel slip status.
Component
Signal description
Yaw rate/side/decel G sensor
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via com-
munication line
*1
.
• Yaw rate signal
• Side G sensor signal
• Decel G sensor signal
ECM
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Accelerator pedal position signal
• Engine speed signal
Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• Target throttle position signal
TCM
*2
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• N range signal
• P range signal
• R range signal
• Current gear position signal
AWD control module
*3
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Current AWD mode signal
Steering angle sensor
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Steering angle sensor signal
Combination meter
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Brake fluid level switch signal
Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• VDC warning lamp signal
• VDC OFF indicator lamp signal
BRC-34
< SYSTEM DESCRIPTION >
[WITH VDC]
SYSTEM
• The following effects are obtained by preventing wheel lock during
braking.
- Vehicle tail slip is prevented during braking when driving straight.
- Understeer and oversteer tendencies are moderated during brak-
ing driving on a corner.
- Obstacles may be easily bypassed by steering operation during
braking.
• CONSULT can be used to diagnose the system diagnosis.
• Fail-safe function is adopted. When a malfunction occurs in ABS
function, the control is suspended for VDC function, TCS function,
ABS function and brake limited slip differential (BLSD) function.
The vehicle status becomes the same as models without VDC
function, TCS function, ABS function and brake limited slip differ-
ential (BLSD) function. However, EBD function is operated nor-
mally. Refer to
.
NOTE:
• ABS has the characteristic as described here, but it is not the
device that helps reckless driving.
• To stop vehicle efficiently, ABS does not operate and ordinary
brake operates at low speed [approx. 10 km/h (6.2 MPH) or less,
but differs subject to road conditions).
• Self-diagnosis is performed immediately after when engine starts
and when vehicle initially is driven [by vehicle speed approx. 15
km/h (9.3 MPH)]. Motor sounds are generated during self-diagno-
sis. In addition, brake pedal may be felt heavy when depressing brake pedal lightly. These symptoms are not
malfunctions.
SYSTEM DIAGRAM
INPUT SIGNAL AND OUTPUT SIGNAL
Major signal transmission between each unit via communication lines is shown in the following table.
JPFIC0140GB
JPFIC0144GB
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст