Nissan Versa Note. Manual — part 798
TM-72
< SYSTEM DESCRIPTION >
[CVT: RE0F11A]
STRUCTURE AND OPERATION
FLUID COOLER & FLUID WARMER SYSTEM
FLUID COOLER & FLUID WARMER SYSTEM : System Description
INFOID:0000000009019609
CVT FLUID COOLER SCHEMATIC
Without CVT fluid cooler (air-cooling)
With CVT fluid cooler (air-cooling)
COMPONENT DESCRIPTION
CVT Oil Warmer
Manual valve
Distributes the clutch and brake operation pressures (pilot pressure) corresponding to
each shift position.
High clutch/reverse brake switching valve
Switches the circuit for the high clutch and the reverse brake.
Torque converter clutch control valve
It is operated with the torque converter clutch solenoid valve and it adjusts the tighten-
ing pressure and non-tightening pressure of the torque converter clutch piston of the
torque converter.
Primary pressure control valve
It is operated with the primary pressure solenoid valve and adjusts the feed pressure to
the primary pulley.
Primary pressure solenoid valve
TM-64, "CVT CONTROL SYSTEM : Primary Pressure Solenoid Valve"
Low brake solenoid valve
TM-64, "CVT CONTROL SYSTEM : Low Brake Solenoid Valve"
High clutch & reverse brake solenoid valve
TM-64, "CVT CONTROL SYSTEM : High Clutch & Reverse Brake Solenoid Valve"
Torque converter clutch solenoid valve
TM-64, "CVT CONTROL SYSTEM : Torque Converter Clutch Solenoid Valve"
Line pressure solenoid valve
TM-65, "CVT CONTROL SYSTEM : Line Pressure Solenoid Valve"
Part name
Function
JSDIA2943GB
JSDIA2943GB
STRUCTURE AND OPERATION
TM-73
< SYSTEM DESCRIPTION >
[CVT: RE0F11A]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
• The CVT oil warmer (1) is installed on the front part of transaxle
assembly.
• When engine is started while engine and CVT are cold, engine
coolant temperature rises more quickly than CVT fluid tempera-
ture. CVT oil warmer is provided with two circuits for CVT and
engine coolant respectively so that warmed engine coolant warms
CVT quickly. This helps shorten CVT warming up time, improving
fuel economy.
• A cooling effect is obtained when CVT fluid temperature is high.
CVT Fluid Cooler (Water-cooling)
• The CVT fluid cooler (water-cooling) is installed in the radiator side tank (right side).
• CVT fluid is cooled by engine coolant.
CVT Fluid Cooler (Air-cooling)
• The CVT fluid cooler (air-cooling) is installed to vehicle front.
• The CVT fluid cooler (air-cooling) prevents CVT fluid temperature from an abnormal increase while driving
the vehicle. When flowing into the CVT fluid cooler (air-cooling), CVT fluid is cooled by driving blast while
driving the vehicle.
Heater Thermostat
• The heater thermostat (1) is installed on the front part of transaxle
assembly.
• The heater thermostat open and close with set temperature.
SHIFT LOCK SYSTEM
SHIFT LOCK SYSTEM : System Description
INFOID:0000000009019619
The selector lever cannot be shifted from “P” position to any other position unless the ignition switch is in the
ON position and the brake pedal is depressed.
KEY LOCK SYSTEM
KEY LOCK SYSTEM : System Description
INFOID:0000000009019620
• The key lock mechanism also operates as a shift lock:
With the ignition switch turned to ON, selector lever cannot be shifted from “P” position to any other position
unless brake pedal is depressed.
With the key removed, selector lever cannot be shifted from “P” position to any other position.
The key cannot be removed unless selector lever is placed in “P” position.
• The shift lock and key lock mechanisms are controlled by the ON-OFF operation of the shift lock solenoid
and by the operation of the rotator and slider located inside key cylinder, respectively.
JSDIA2586ZZ
JSDIA2585ZZ
TM-74
< SYSTEM DESCRIPTION >
[CVT: RE0F11A]
SYSTEM
SYSTEM
CVT CONTROL SYSTEM
CVT CONTROL SYSTEM : System Description
INFOID:0000000009019610
SYSTEM DIAGRAM
JSDIA2803GB
SYSTEM
TM-75
< SYSTEM DESCRIPTION >
[CVT: RE0F11A]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
INPUT/OUTPUT SIGNAL TABLE
SYSTEM DESCRIPTION
• CVT detects the vehicle driving status from switches, sensors and signals, and controls the vehicle so that
the optimum shift position and shift timing may always be achieved. It also controls the vehicle to reduce
shift and lockup shock, etc.
• Receives input signals from switches and sensors.
• Sends the output signal necessary for operation of solenoid valves, and evaluates the line pressure, shift
timing, lockup operation, engine brake performance, etc.
• If a malfunction occurs on the electric system, activate the fail-safe mode only to drive the vehicle.
LIST OF CONTROL ITEMS AND INPUT/OUTPUT
Sensor (or signal)
⇒
TCM function
⇒
Actuator
• Engine and CVT integrated control
signal
• Engine speed signal
• Accelerator pedal position signal
• Closed throttle position signal
• Stop lamp switch signal
• Secondary pressure sensor
• CVT fluid temperature sensor
• Primary speed sensor
• Secondary speed sensor
• Output speed sensor
• Transmission range switch signal
• Overdrive control switch signal
• Vehicle speed signal (ABS)
• ABS operation signal
• A/C compressor feedback signal
• G sensor
• N idle instruction signal
• Turn indicator signal
• Line pressure control (
PRESSURE CONTROL : System Descrip-
tion"
• Shift control (
• Select control (
)
• Lock-up control (
)
• Idle neutral control (
TRAL CONTROL : System Description"
• Fail-safe mode (
)
• Self-diagnosis function (
)
• Communication function with CONSULT
• CAN communication control (
)
• Line pressure solenoid valve
• Primary pressure solenoid valve
• Torque converter clutch solenoid
valve
• High clutch & reverse brake sole-
noid valve
• Low brake solenoid valve
• OD OFF indicator lamp
• Shift position indicator
Control Item
Shift control
Line pressure
control
Select control
Lock-up con-
trol
Fail-safe func-
tion *
Input
Engine torque signal
(CAN communication)
×
×
×
×
×
Engine speed signal
(CAN communication)
×
×
×
×
×
Accelerator pedal position signal
(CAN communication)
×
×
×
×
×
Closed throttle position signal
(CAN communication)
×
×
×
Stop lamp switch signal
(CAN communication)
×
×
×
×
Secondary pressure sensor
×
×
×
×
CVT fluid temperature sensor
×
×
×
×
Primary speed sensor
×
×
×
×
Secondary speed sensor
×
×
×
×
×
Output speed sensor
×
×
×
×
×
Transmission range switch
×
×
×
×
×
Overdrive control switch
(CAN communication)
×
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст