Nissan Juke F15. Manual — part 1299
TM-386
< SYSTEM DESCRIPTION >
[CVT: RE0F10D]
SYSTEM
SHIFT CONTROL : System Description
INFOID:0000000012201102
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-
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)
JSDIA5313GB
SYSTEM
TM-387
< SYSTEM DESCRIPTION >
[CVT: RE0F10D]
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Gear shifting is performed in all shifting ranges from the lowest to
the highest gear ratio.
• M Position (Manual Mode)
When the selector lever is put in the manual shift gate side, the
fixed changing gear line is set. By moving the selector lever to +
side or - side, the manual mode switch is changed over, and shift
change like M/T becomes possible following the changing gear set
line step by step.
- Manual Mode Information
The TCM transmits the manual mode shift refusal signal to the combination meter if the TCM refuses the
transmission from the driving status of vehicle when the selector lever shifts to UP side (+ side) or DOWN
side (
−side). The combination meter blinks shift indicator on the combination meter and sounds the buzzer to
indicate the driver that the shifting is not performed when receiving this signal. However, the TCM does not
transmit the manual mode shift refusal signal in the conditions as per the following.
• When the selector lever shifts to DOWN side (
− side) while driving in M1.
• When the selector lever shifts to UP (+ side) side while driving in M7.
Blipping Control
Using engine torque, the blipping control enables a faster and more responsive gear shifting by compensating
inertia torque generated from the rotational change during gear shifting in real time.
Operation
• The blipping control is activated when shifting up/down in manual mode or when shifting up/down in “Ds”
position.
NOTE:
The blipping control is not activated when the vehicle is in the following conditions:
• When CAN communication is abnormal.
• During the retard inhibit signal transmission from ECM within the engine-CVT integrated control.
• Engine coolant temperature is less than 20
°C (68°F).
• CVT fluid temperature is more than 120
°C (248°F).
• Vehicle speed is less than 20 km/h (13 MPH).
• When ABS, TCS or VDC is active.
• During wheel spin.
• ECM selects blipping control or normal shift control according to the gear position, the selector lever posi-
tion, etc.
• The blipping control is activated when ECM judges it controllable after receiving a control permit signal from
TCM.
SCIA1953E
JSDIA4104GB
TM-388
< SYSTEM DESCRIPTION >
[CVT: RE0F10D]
SYSTEM
• ECM controls engine torque, based on generated inertia torque.
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.
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.
JSDIA2841GB
JSDIA2060GB
SYSTEM
TM-389
< SYSTEM DESCRIPTION >
[CVT: RE0F10D]
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SELECT CONTROL
SELECT CONTROL : System Description
INFOID:0000000012201103
SYSTEM DIAGRAM
DESCRIPTION
Based on accelerator pedal angle, engine speed, primary pulley speed, and the input 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
JSDIA5273GB
JSDIA3711GB
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