SSANGYONG KYRON 2010.01 Manual page 578

01-30
3410-01
(3) Power train system
The Power Train System consists of :
- A torque converter with single face lock-up clutch
-
Four multi-plate clutch assemblies
- Two brake bands
- Two one-way clutches
-
Planetary gear set
- Parking mechanism
A conventional six pinion Ravigneaux compound planetary gear set is used with overdrive
(fourth gear) being obtained by driving the carrier.
The cross-sectional arrangement is very modular in nature.
Four main sub-assemblies are installed within the case to complete the build.
These subassemblies are :
- Gear set-sprag-centre support
- C1 -C2 -C3 -C4 clutch sub-assembly
- Pump assembly
- Valve body assembly
One, or a combination of selective washers are used between the input shaft flange and the
number 4 bearing to control the transmission end float. This arrangement allows for extensive
subassembly testing and simplistic final assembly during production.
A general description of the operation of the Power Train System is detailed below.
First gear is engaged by applying the C2 clutch and locking the 1-2 One Way Clutch (1-2
OWC). The 1-2 shift is accomplished by applying the B1 band and overrunning the 1-2 OWC.
The 2-3 shift is accomplished by applying the C1 clutch and releasing the B1 band. The 3-4
shift is accomplished by re-applying the B1 band and overrunning the 3-4 OWC. Reverse gear
is engaged by applying the C3 clutch and the B2 band.
The C4 clutch is applied in the Manual 1, 2 and 3 ranges to provide engine braking. In addition,
the C4 clutch is also applied in the Drive range for second and third gears to eliminate
objectionable freewheel coasting.
The B2 band is also applied in the Manual 1 range to accomplish the low-overrun shift.
Both the front and rear servos are dual area designs to allow accurate friction element matching
without the need for secondary regulator valves. All the friction elements have been designed to
provide low shift energies and high static capacities when used with the new low static co-
efficient transmission fluids. Non-asbestos friction materials are used throughout.
ION 4-SPEED
KYRON 2010.01