SSANGYONG KYRON 2010.01 Manual page 595

(1) 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 driven 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 clockwise or forward direction at input shaft
speed.
- The C4 clutch is applied to bypass the 3-4 OWC and provide engine braking on overrun.
(2) Control
To maintain this arrangement in the steady state solenoids 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 directed 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 valvera-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 (regulated 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.
01-47
3410-01
ION 4-SPEED
KYRON 2010.01