Nissan Juke (2016 year). Service Repair Manual — part 622
TM-168
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
STRUCTURE AND OPERATION
COMPONENT DESCRIPTION
CVT Oil Warmer
• 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 A/T fluid temperature is high.
Heater Thermostat
The heater thermostat (1) is installed on the front part of transaxle
assembly.
MECHANICAL SYSTEM
JSDIA2826GB
JSDIA2228ZZ
JSDIA2439ZZ
Revision: November 2015
2016 JUKE
STRUCTURE AND OPERATION
TM-169
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
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MECHANICAL SYSTEM : System Diagram
INFOID:0000000012200875
MECHANICAL SYSTEM : System Description
INFOID:0000000012200876
Traction force of engine is transmitted to wheel via torque converter, planetary gear, belt, pulley, differential
gear, and others. Also includes a parking mechanism that mechanically fixes secondary pulley when selector
lever is shifted to the “P” position.
ACTIVATION STATE ACCORDING TO EACH SHIFTING
×
: Operates
POWER TRANSMISSION
“P” position
• Traction force from input shaft is not transmitted to primary pulley because forward clutch and reverse brake
are not engaged and run idle.
• Torque from the wheels is not transmitted to secondary pulley because secondary pulley is mechanically
fixed when parking pole that is linked with selector lever is engaged with parking gear that is integrated with
secondary pulley.
JSDIA2432GB
Selector lever position
Secondary
pressure
sensor
Solenoid valve
Step motor
Line pres-
sure sole-
noid valve
Secondary
pressure sole-
noid valve
Torque con-
verter solenoid
valve
Lock-up select sole-
noid valve
P
×
×
×
×
R
×
×
×
×
×
N
×
×
×
×
×
D (Low)
×
×
×
×
×
D (High)
×
×
×
×
×
D
(Lock-up)
×
×
×
×
×
Revision: November 2015
2016 JUKE
TM-170
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
STRUCTURE AND OPERATION
Planetary gear
“R” position
• Traction force from input shaft rotates sun gear in opposite direction of input shaft rotation because reverse
brake is engaged and planetary gear is fixed.
• Therefore primary pulley rotates in opposite direction of input shaft rotation and traction force output is in
opposite direction rotation.
JSDIA2433GB
Name
Sun gear
Planet carrier
Internal gear
Condition
Stop
Idled
Input
Direction of rotation
—
—
Clockwise revolution
Revision: November 2015
2016 JUKE
STRUCTURE AND OPERATION
TM-171
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
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Planetary gear
“N” position
• Traction force from input shaft is not transmitted to primary pulley because forward clutch and reverse brake
are not engaged and run idle.
• Torque from wheel is not transmitted to input shaft because forward clutch and reverse brake are not
engaged and planetary carrier runs idle.
JSDIA2434GB
Name
Sun gear
Planet carrier
Internal gear
Condition
Output
Fixed
Input
Direction of rotation
Counterclockwise revolution
—
Clockwise revolution
Revision: November 2015
2016 JUKE
TM-172
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
STRUCTURE AND OPERATION
Planetary gear
“D” position
• Traction force from input shaft rotates sun gear via forward clutch in the same direction of input shaft
because forward clutch is engaged.
• Therefore primary pulley rotates in the same direction of input shaft rotation and traction force output is in the
same direction rotation.
JSDIA2435GB
Name
Sun gear
Planet carrier
Internal gear
Condition
Stop
Idle
Input
Direction of rotation
—
—
Clockwise revolution
Revision: November 2015
2016 JUKE
STRUCTURE AND OPERATION
TM-173
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
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Planetary gear
MECHANICAL SYSTEM : Component Description
INFOID:0000000012200877
JSDIA2436GB
Name
Sun gear
Planet carrier
Internal gear
Condition
Input/output
Idle
Input
Direction of rotation
Clockwise revolution
—
Clockwise revolution
Part name
Function
Torque converter
Increases engine torque and transmits it to the transaxle.
Oil pump
Utilizes a vane-type oil pump that is driven by the engine through the oil pump drive chain in order to
increase efficiency of pump discharge volume in low-speed zone and optimize pump discharge volume
in high-speed zone. Discharged oil from oil pump is transmitted to control valve. It is used as the oil of
primary and secondary pulley operation, the oil of clutch operation, and the lubricant for each part.
Forward clutch
The forward clutch is wet and multiple plate type clutch that consists of clutch drum, piston, drive plate,
and driven plate. It is a clutch to move the vehicle forward by activating piston hydraulically, engaging
plates, and directly connecting sun gear and input shaft.
Reverse brake
The reverse brake is a wet multiple-plate type brake that consists of transaxle case, piston, drive plate,
and driven plate. It is a brake to move the vehicle in reverse by activating piston hydraulically, engaging
plates, and fixing planetary gear.
Internal gear
The internal gear is directly connected to forward clutch drum. It is a gear that moves the outer edge of
pinion planet of planet carrier. It transmits power to move the vehicle in reverse when the planet carrier
is fixed.
Planet carrier
Composed of a carrier, pinion planet, and pinion shaft. This gear fixes and releases the planet carrier in
order to switch between forward and reverse driving.
Sun gear
Sun gear is a set part with planet carrier and internal gear. It transmits transmitted force to primary fixed
sheave. It rotates in forward or reverse direction according to activation of either forward clutch or re-
verse brake.
Input shaft
The input shaft is directly connected to forward clutch drum and transmits traction force from torque con-
verter. In shaft center, there are holes for hydraulic distribution to primary pulley and hydraulic distribu-
tion for lockup ON/OFF.
Revision: November 2015
2016 JUKE
TM-174
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
STRUCTURE AND OPERATION
Primary pulley
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.
Secondary pulley
Steel belt
Manual shaft
When the manual shaft is in the P position, the parking rod that is linked to the manual shaft rotates the
parking pole. When the parking pole rotates, it engages with the parking gear, fixing the parking gear.
As a result, the secondary pulley that is integrated with the parking gear is fixed.
Parking rod
Parking pawl
Parking gear
Output gear
The deceleration gears are composed of 2 stages: primary deceleration (output gear, idler gear pair) and
secondary deceleration (reduction gear, final gear pair). All of these gears are helical gears.
Idler gear
Reduction gear
Differential
Torque converter regulator
valve
Adjusts the feed pressure to the torque converter to the optimum pressure corresponding to the driving
condition.
Pressure regulator valve
Adjusts the discharge pressure from the oil pump to the optimum pressure (line pressure) corresponding
to the driving condition.
Torque converter clutch
control valve
Adjusts the torque converter engage and disengage pressures.
Shift control valve
Controls the line pressure that is applied to the primary pulley according to the stroke difference between
the step motor and primary pulley.
Secondary valve
Reduces the line pressure and adjusts the secondary pressure.
Clutch regulator valve
Adjusts the clutch operating pressure according to the driving conditions.
Manual valve
Distributes the clutch operation pressure to each circuit according to the selector lever position.
Select control valve
Engages when selected. Adjusts the forward clutch pressure and reverse brake pressure.
Select switch valve
Performs switching control of the torque converter clutch solenoid valve control pressure when lock-up
is engaged/disengaged, and when the forward/reverse clutches (forward clutch and reverse brake) are
engaged/disengaged.
Step motor
• Step motor changes step by turning 4 coils ON or OFF according to signal from TCM.
• By changing step, step motor controls outward flow and inward flow of line pressure to primary pulley,
determines the primary pulley position, and controls gear ratio.
Part name
Function
Revision: November 2015
2016 JUKE
SYSTEM
TM-175
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
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SYSTEM
CVT CONTROL SYSTEM
CVT CONTROL SYSTEM : System Description
INFOID:0000000012200878
JSDIA6363GB
Revision: November 2015
2016 JUKE
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