Nissan Note E12. Manual - part 631

TM-82

< SYSTEM DESCRIPTION >

[CVT: RE0F11A]

SYSTEM

SHIFT CONTROL : System Description

INFOID:0000000009019864

SYSTEM DIAGRAM

DESCRIPTION

To select the gear ratio that can give the driving force to meet driver's intent or vehicle situation, the vehicle

driving condition such as vehicle speed or accelerator pedal position is detected and the most appropriate

gear ratio is selected and the shifting method before reaching the speed is determined.   The information is

output to the primary pressure solenoid valve to control the line pressure input/output to the primary pulley, to

determine the primary pulley (movable pulley) position and to control the gear position. 

D Position (Normal)

JSDIA2632GB

SYSTEM

TM-83

< SYSTEM DESCRIPTION >

[CVT: RE0F11A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

Gear shifting is performed in all shifting ranges from the lowest to the

highest gear ratio. 

D Position (OD OFF)

The gear ratio is generally high by limiting the shifting range on the

high side, and this always generates a large driving power. 

L Position

By limiting the shifting range only to the lowest of the gear ratio, a

large driving force and engine brake are obtained. 

Hill Climbing And Descending Control

If a downhill is detected with the accelerator pedal is released, the system performs downshift to increase the

engine brake force so that vehicle may not be accelerated more than necessary. If a climbing hill is detected,

the system improves the acceleration performance in re-acceleration by limiting the gear shift range on the

high side. 

NOTE:

For engine brake control on a downhill, the control can be stopped with CONSULT. 

Control In Acceleration

From change of the vehicle speed or accelerator pedal position, the acceleration request level of the driver or

driving scene is evaluated. In start or acceleration during driving, the gear shift characteristics with linearity of

revolution increase and vehicle speed increase are gained to improve the acceleration feel.

SELECT CONTROL

SCIA1953E

SCIA8229E

SCIA8240E

JSDIA2060GB

TM-84

< SYSTEM DESCRIPTION >

[CVT: RE0F11A]

SYSTEM

SELECT CONTROL : System Description

INFOID:0000000009019865

SYSTEM DIAGRAM

DESCRIPTION

Based on accelerator pedal angle, engine speed, primary pulley speed, and the secondary pulley speed, the

optimum operating pressure is set to reduce impact of a selector lever operation while shifting from “N” (“P”) to

“D” (“R”) position.

LOCK-UP CONTROL

JSDIA1862GB

SYSTEM

TM-85

< SYSTEM DESCRIPTION >

[CVT: RE0F11A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

LOCK-UP CONTROL : System Description

INFOID:0000000009019866

SYSTEM DIAGRAM

DESCRIPTION

• Controls for improvement of the transmission efficiency by engaging the torque converter clutch in the

torque converter and eliminating slip of the converter. Achieves comfortable driving with slip control of the

torque converter clutch. 

• The oil pressure feed circuit for the torque converter clutch piston chamber is connected to the torque con-

verter clutch control valve. The torque converter clutch control valve is switched by the torque converter

clutch solenoid valve with the signal from TCM. This controls the oil pressure circuit, which is supplied to the

torque converter clutch piston chamber, to the release side or engagement side. 

• If the CVT fluid temperature is low or the vehicle is in fail-safe mode due to malfunction, lock-up control is

prohibited. 

Lock-up engagement 

In lock-up engagement, the torque converter clutch solenoid valve makes the torque converter clutch control

valve locked up to generate the lock-up apply pressure. This pushes the torque converter clutch piston for

engagement. 

Lock-up release condition 

In lock-up release, the torque converter clutch solenoid valve makes the torque converter clutch control valve

non-locked up to drain the lock-up apply pressure. This does not engage the torque converter clutch piston. 

IDLE NEUTRAL CONTROL

JSDIA1865GB