Nissan Teana J32. Manual — part 1125
TM-24
< FUNCTION DIAGNOSIS >
[CVT: RE0F09B]
CONTROL SYSTEM
• *1: Input via CAN communications.
• *2: Output via CAN communications.
• *3: If these input and output signals are different, the TCM triggers the fail-safe function.
Control item
Fluid
pressure
control
Select con-
trol
Shift con-
trol
Lock-up
control
CAN com-
munica-
tion control
Fail-safe
function
*3
Input
PNP switch
X
X
X
X
X
X
Accelerator pedal position signal
*1
X
X
X
X
X
X
Closed throttle position signal
*1
X
X
X
X
Engine speed signal
*1
X
X
X
X
X
CVT fluid temperature sensor
X
X
X
X
X
Sport mode switch signal
*1
X
X
X
X
Stop lamp switch signal
*1
X
X
X
X
Primary speed sensor
X
X
X
X
X
Secondary speed sensor
X
X
X
X
X
X
Primary pressure sensor
X
X
Secondary pressure sensor
X
X
X
TCM power supply voltage signal
X
X
X
X
X
X
Output
Step motor
X
X
TCC solenoid valve
X
X
X
Lock-up select solenoid valve
X
X
X
Line pressure solenoid valve
X
X
X
X
Secondary pressure solenoid valve
X
X
X
SPORT indicator signal
*2
X
X
CONTROL SYSTEM
TM-25
< FUNCTION DIAGNOSIS >
[CVT: RE0F09B]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
Component Parts Location
INFOID:0000000003848930
*1: Primary pressure sensor is included in CVT assembly.
*2: Control valve assembly is included in CVT assembly.
NOTE:
The following components are included in control valve assembly (7).
• PNP switch
• Primary speed sensor
• Step motor
• Secondary pressure solenoid valve
• Line pressure solenoid valve
• Torque converter clutch solenoid valve
• Shift control valve
• Secondary valve
• Manual valve
• Lock-up select solenoid valve
1.
Sport mode switch
2.
Shift position indicator
3.
SPORT indicator lamp
4.
TCM
5.
Secondary speed sensor
6.
Primary pressure sensor
*1
7.
Control valve assembly
*2
8.
CVT unit connector
9.
Accelerator pedal position sensor
A.
Control device
B.
Combination meter
C.
Engine room LH
D.
CVT assembly
E.
Accelerator pedal, upper
JPDIA0747ZZ
TM-26
< FUNCTION DIAGNOSIS >
[CVT: RE0F09B]
CONTROL SYSTEM
• CVT fluid temperature sensor
• Secondary pressure sensor
• ROM assembly
Component Description
INFOID:0000000003848931
TRANSAXLE ASSEMBLY
EXCEPT TRANSAXLE ASSEMBLY
Name
Function
PNP switch
CVT fluid temperature sensor
Primary speed sensor
Secondary speed sensor
Primary pressure sensor
Secondary pressure sensor
Step motor
TCC solenoid valve
Lock-up select solenoid valve
Line pressure solenoid valve
Secondary pressure solenoid valve
Name
Function
TCM
Stop lamp switch
LOCK-UP AND SELECT CONTROL SYSTEM
TM-27
< FUNCTION DIAGNOSIS >
[CVT: RE0F09B]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
LOCK-UP AND SELECT CONTROL SYSTEM
System Diagram
INFOID:0000000003848932
System Description
INFOID:0000000003848933
• The torque converter clutch piston in the torque converter is engaged to eliminate torque converter slip to
increase power transmission efficiency.
• The torque converter clutch control valve operation is controlled by the torque converter clutch solenoid
valve, which is controlled by a signal from TCM. The torque converter clutch control valve engages or
releases the torque converter clutch piston.
• When shifting between “N” (“P”)
⇔
“D” (“R”), torque converter clutch solenoid valve controls engagement
power of forward clutch and reverse brake.
• The lock-up applied gear range was expanded by locking up the
torque converter at a lower vehicle speed than conventional CVT
models.
TORQUE CONVERTER CLUTCH AND SELECT CONTROL VALVE CONTROL
Lock-up Released
In the lock-up released state, the torque converter clutch control valve is set into the unlocked state by the
torque converter clutch solenoid valve and the lock-up apply pressure is drained.
In this way, the torque converter clutch piston is not coupled.
Lock-up Applied
In the lock-up applied state, the torque converter clutch control valve is set into the locked state by the torque
converter clutch solenoid valve and lock-up apply pressure is generated.
In this way, the torque converter clutch piston is pressed and coupled.
Select Control
When shifting between “N” (“P”)
⇔
“D” (“R”), optimize the operating pressure on the basis of the throttle posi-
tion, the engine speed, and the secondary pulley (output) revolution speed to lessen the shift shock.
SCIA2374E
JPDIA0312GB
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст