Nissan Rogue. Instruction — part 1166
TM-36
< SYSTEM DESCRIPTION >
[CVT: RE0F10D]
SYSTEM
REVERSE PROHIBIT CONTROL
LINE PRESSURE CONTROL
LINE PRESSURE CONTROL : System Description
INFOID:0000000011279274
SYSTEM DIAGRAM
DESCRIPTION
Highly accurate line pressure control and secondary pressure control reduces friction for improvement of fuel
economy.
Normal Oil Pressure Control
Appropriate line pressure and secondary pressure suitable for driving condition are determined based on the
accelerator pedal position, engine speed, primary pulley (input) speed, secondary pulley (output) speed, vehi-
cle speed, input torque, stop lamp switch signal, transmission range switch signal, lock-up signal, power volt-
age, target shift ratio, oil temperature, oil pressure, and overdrive control switch signal.
Control
When the CVT fluid temperature is high, the gear shift permission maximum revolution and the maximum
torque are reduced than usual to prevent increase of the oil temperature.
Vehicle behavior in
control
Power performance may be lowered, compared to normal control.
Normal return condi-
tion
The control returns to the normal control when CVT fluid temperature is lowered.
Control
The reverse brake is controlled to avoid becoming engaged when the selector lever is set in “R” position while
driving in forward direction at more than the specified speed.
Vehicle behavior in
control
If the selector lever is put at “R” position when driving with the forward gear, the gear becomes neutral, not
reverse.
Normal return condi-
tion
The control returns to normal control when the vehicle is driven at low speeds. (The reverse brake becomes
engaged.)
JSDIA3781GB
SYSTEM
TM-37
< SYSTEM DESCRIPTION >
[CVT: RE0F10D]
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Secondary Pressure Feedback Control
In normal oil pressure control and oil pressure control in shifting, highly accurate secondary pressure is deter-
mined by detecting the secondary pressure using an oil pressure sensor and by feedback control.
SHIFT CONTROL
SHIFT CONTROL : System Description
INFOID:0000000011279275
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 out-
JSDIA3782GB
TM-38
< SYSTEM DESCRIPTION >
[CVT: RE0F10D]
SYSTEM
put to the primary pressure solenoid valve and secondary pressure solenoid valve to control the line pressure
input/output to the pulley, to determine the pulley (movable pulley) position and to control the gear position.
Shift Position Function
• D Position (Normal)
Gear shifting is performed in all shifting ranges from the lowest to
the highest gear ratio.
• D Position (O/D 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.
SCIA1953E
SCIA8229E
SCIA8240E
JSDIA2060GB
SYSTEM
TM-39
< SYSTEM DESCRIPTION >
[CVT: RE0F10D]
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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.
• When the accelerator pedal is depressed 4/8 or more in D position, CVT performs step shifting to allow the
vehicle speed and engine speed to increase simultaneously. This improves the feel of acceleration and
enables the fuel economy by preventing unnecessary rise in engine speed, compared to the conventional
shifting.
SELECT CONTROL
SELECT CONTROL : System Description
INFOID:0000000011279276
SYSTEM DIAGRAM
Step shift
Conventional shift
JSDIA5259GB
JSDIA3711GB
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