SsangYong Rexton. Manual - part 540
AUTOMATIC TRANSMISSION 5A-31
SSANGYONG Y200
Power Flow - Drive 3 and Manual 3
In Drive 2 and Manual 2, transmission drive is via the
input shaft and forward clutch cylinder. The elements
of the transmission function as follows;
•
The C2 clutch is engaged to drive the forward sun
gear.
•
The C1 clutch is engaged to drive the planet carrier.
•
The short pinion drives the long pinion clockwise.
•
The forward sun gear and the planet carrier are driv-
en clockwise at the same speed therefore there is
no relative motion between the sun gear and the
pinions.
•
The ring gear and output shaft are driven in a clock-
wise or forward direction at input shaft speed.
•
The C4 clutch is applied to bypass the 3-4 OWC
and provide engine braking on overrun.
Control
To maintain this arrangement in the steady state sole-
noids and valves are activated as follows:
•
Solenoid S1 is switched OFF. S2 is switched OFF.
•
With S1 and S2 switched OFF, the 2-3 and 3-4 shift
valves are held in the third gear position by line
500 pressure.
•
The 1-2 shift valve is held in the third gear position
by S1-S2 oil pressure.
•
2nd oil (line pressure) from the 1-2 shift valve is di-
rected to the band apply feed regulator valve and
to the 2-3 shift valve.
•
The band apply feed regulator valve supplies 2nd
oil (regulated to line pressure multiplied by the valve
ra-tio) to the Band Apply Feed (BAF) circuit.
•
Band apply feed oil is directed to;
- The outer apply area of the front servo
- The 1-2 shift valve to provide an exhaust port
when the transmission is shifted to first gear
- The 3-4 shift valve for use when the transmission
is shifted into fourth gear
•
2nd oil at the 2-3 shift valve is directed to the 3rd
oil circuit.
•
3rd oil from the 2-3 shift valve is directed to the
clutch apply regulator valve, and to the 4-3
sequence valve.
•
The clutch apply regulator valve supplies oil (regu-
lated to line 500 pressure multiplied by the valve
ratio) to the Clutch Apply Feed (CAF) circuit.
The CAF oil is directed to;
- The C1clutch
- The 4-3 sequence valve
•
At the 4-3 sequence valve the CAF oil becomes
Band 1 Release Feed (B1R-F) oil, and is directed
through the 3-4 shift valve to the spring end of the
4-3 sequence valve, and to the release side of the
front servo piston to hold band 1 OFF.
•
Drive (line pressure) is routed through the 3-4 shift
valve to apply the C4 clutch.
KAA5A420
3-4
OWC
X
LU
CLUTCH
-
ELEMENTS ENGAGED
Gear State
Drive 3 and Manual 3
C1
X
C2
X
C3
-
C4
X
B1
-
B2
-
1-2
OWC
-