Content .. 838 839 840 841 ..

Nissan Versa Sedan. Manual - part 840

TM-266

< SYSTEM DESCRIPTION >

[CVT: RE0F11A]

COMPONENT PARTS

• The principle of the linear solenoid valve utilizes the fact that the force pressing on the valve spool installed

inside the coil increases nearly in proportion to the current. This allows it to produce a fluid pressure that is

proportional to this pressing force.

• The N/L (normal low) type does not produce hydraulic control when the coil is not energized.

CVT CONTROL SYSTEM : Line Pressure Solenoid Valve

INFOID:0000000009268071

• The line pressure solenoid valve is installed to control valve.

• The line pressure solenoid valve controls the pressure regulator valve. For information about the pressure

regulator valve, refer to

TM-271, "TRANSAXLE : Component Description"

• The line pressure solenoid valve uses the linear solenoid valve [N/H (normal high) type].

NOTE:

• The principle of the linear solenoid valve utilizes the fact that the force pressing on the valve spool installed

inside the coil increases nearly in proportion to the current. This allows it to produce a fluid pressure that is

proportional to this pressing force.

• The N/H (normal high) produces hydraulic control when the coil is not energized.

CVT CONTROL SYSTEM : G Sensor

INFOID:0000000009268072

• G sensor is installed to floor under instrument lower cover.

• G sensor detects front/rear G and inclination applied to the vehicle.

• G sensor converts front/rear G and inclination applied to the vehicle to voltage signal. TCM evaluates front/

rear G and inclination angle of the vehicle from the voltage signal.

CVT CONTROL SYSTEM : Overdrive Control Switch

INFOID:0000000009268073

• The overdrive control switch is installed to the selector lever knob.

• When the OD OFF indicator lamp on the combination meter is OFF and the overdrive control switch is

pressed, the overdrive is cancelled and the OD OFF indicator lamp is ON.

• When the OD OFF indicator lamp on the combination meter is ON and the overdrive control switch is

pressed, the overdrive is active and the OD OFF indicator lamp is OFF.

CVT CONTROL SYSTEM : OD OFF Indicator Lamp

INFOID:0000000009268074

• OD OFF indicator lamp is positioned on the combination meter.

• OD OFF indicator lamp is ON when set to the overdrive off.

• OD OFF indicator lamp turns on for a certain period of time when the ignition switch turns ON, and then turns

off.

CVT CONTROL SYSTEM : Shift Position Indicator

INFOID:0000000009268075

TCM transmits shift position signal to combination meter via CAN communication. The actual shift position is

displayed on combination meter according to the signal.

Condition (status)

OD OFF indicator lamp

Ignition switch OFF.

OFF

Ignition switch ON.

ON (Approx. 2 seconds)

Overdrive control switch is pressed when the selector lever is in
the “D” position and the OD OFF indicator lamp is OFF.

Overdrive control switch is pressed when the selector lever is in
the “D” position and the OD OFF indicator lamp is ON.

OFF

Selector lever is shifted to other position when the selector lever is
at “D” position and the OD OFF indicator lamp is ON.

OFF

COMPONENT PARTS

TM-267

< SYSTEM DESCRIPTION >

[CVT: RE0F11A]

CVT CONTROL SYSTEM : Malfunction Indicator Lamp (MIL)

INFOID:0000000009268076

The malfunction indicator lamp (MIL) is located on the combination

meter.

The MIL will illuminate when the ignition switch is turned ON without

the engine running. This is a bulb check.

When the engine is started, the MIL should turn off. If the MIL

remains illuminated, the on board diagnostic system has detected an

engine system malfunction.

For details, refer to

EC-58, "DIAGNOSIS DESCRIPTION : Malfunc-

tion Indicator Lamp (MIL)"

SHIFT LOCK SYSTEM
SHIFT LOCK SYSTEM : Component Parts Location

INFOID:0000000009268077

COMPONENT DESCRIPTION

JSBIA1315ZZ

Stop lamp switch

Shift lock release lever

Park position switch

Shift lock solenoid

ALDIA0267ZZ

Component

Function

Stop lamp switch

Stop lamp switch turns ON when brake pedal is depressed.

Shift lock release lever

Manually releases the shift lock.

Park position switch

Detects that the selector lever is in “P” position.

Shift lock solenoid

Operates according to the signal from the stop lamp switch and moves the lock lever.

TM-268

< SYSTEM DESCRIPTION >

[CVT: RE0F11A]

STRUCTURE AND OPERATION

STRUCTURE AND OPERATION

TRANSAXLE
TRANSAXLE : Cross-Sectional View

INFOID:0000000009268078

TRANSAXLE : Transaxle Mechanism

INFOID:0000000009268079

BELT & PULLEY

Converter housing

Oil pump

Counter drive gear

Control valve

Oil pan

Primary pulley

Steel belt

Secondary pulley

Planetary gear (auxiliary gearbox)

10.

Side cover

11.

Transaxle case

12.

Differential case

13.

Final gear

14.

Reduction gear

15.

Counter driven gear

16.

Drive sprocket

17.

Oil pump chain

18.

Torque converter

19.

Driven sprocket

JSDIA1777ZZ

STRUCTURE AND OPERATION

TM-269

< SYSTEM DESCRIPTION >

[CVT: RE0F11A]

Mechanism

It is composed of a pair of pulleys (the groove width is changed freely in the axial direction) and the steel belt

(the steel plates are placed continuously and the belt is guided with the multilayer steel rings on both sides).

The groove width changes according to wrapping radius of steel belt and pulley from low status to overdrive

status continuously with non-step. It is controlled with the oil pressures of primary pulley and secondary pulley.

Steel belt

It is composed of multiple steel plates (A) and two steel rings (B)

stacked to a several number. The feature of this steel belt transmits

power with compression of the steel plate in contrast with transmis-

sion of power in pulling with a rubber belt. Friction force is required

with the pulley slope to transmit power from the steel plate. The force

is generated with the following mechanism:

Oil pressure applies to the secondary pulley to nip the plate.

⇒The

plate is pushed and extended outward.

⇒The steel ring shows with-

stands.

⇒Pulling force is generated on the steel ring. ⇒The plate of

the primary pulley is nipped between the pulley.

⇒Friction force is

generated between the steel belt and the pulley.

Therefore, responsibilities are divided by the steel plate that trans-

mits the power with compression and the steel ring that maintains necessary friction force. In this way, the

tension of the steel ring is distributed on the entire surface and stress variation is limited, resulting in good

durability.

Pulley

The primary pulley (input shaft side) and the secondary pulley (output shaft side) have the shaft with slope

(fixed cone surface), movable sheave (movable cone surface that can move in the axial direction) and oil pres-

sure chamber at the back of the movable sheave.

Pulley gear shifting operation

• Pulley gear shifting operation

The movable sheave slides on the shaft to change the groove width of the pulley. Input signals of engine

load (accelerator pedal opening), engine revolution and gear ratio (vehicle speed) change the operation

pressures of the primary pulley and the secondary pulley, and controls the pulley groove width. Along with

change of the pulley groove width, the belt contact radius is changed. This allows continuous and stepless

JSDIA1966ZZ

JSDIA1779GB

Content .. 838 839 840 841 ..