0-7
TORQUE ON DEMAND
RODIUS 2006.09
3240-01
2) Transfer Case
(1) Planetary gear set
Planetary Gear set consists of sun gear, ring gear and carrier. It is engaged with the gear in
“HIGH-LOW” collar to increase the driving force by reducing vehicle speed.
Sun gear is connected to input shaft and ring gear is fixed into the transfer case.
Splined rear output shaft is able to slide on the “HIGH - LOW” collar.
The inside and outside ends of “HIGH - LOW” collar have machined gear. The input
shaft transmits the power to driving wheels by engaging with sun gear and carrier gear.
If the 4WD switch is at “4WD HIGH”, the TOD control unit operates the shift motor to
engage “HIGH - LOW” collar directly with input shaft for transmitting the driving force
to front and rear propeller shafts.
When a driver selects “4WD LOW”, the TOD control unit controls the electro-magnetic
clutch and operates the shift motor to engage “HIGH - LOW” collar with carrier.
The power from transmission is increased up to 2.48:1 by reduction ratio from planetary
gear, and then is sent to front and rear propeller shafts. null
(2) Ball type slant cam and clutch
disc pack
If the speed sensors installed on front and
rear propeller shafts detect the slips at front
and rear wheels, and these slips exceed
the specified range, TOD control unit
controls electromagnetic clutch to transmit
driving force to front wheels.
At this time, ball slant cam is moved to
compress multi-disc located in clutch disc to
transmit driving force to front wheels.
0-3
PROPELLER SHAFT
RODIUS 2006.09
3310-01
3310-01PROPELLER SHAFT
1. PROPELLER SHAFT GENERAL INFORMATION
The propeller shaft transfers the power through
the transmission and transfer case to the
front/rear axle differential carrier (final reduction
gear). It is manufactured by a thin rounded steel
pipe to have the strong resisting force against
the torsion and bending. Both ends of propelle
r
shaft are connected to the spider and the cente
r
of propeller shaft is connected to the spline to
accommodate the changes of the height and
length. The rubber bushing that covers the
intermediate bearing keeps the balance of rea
r
propeller shaft and absorbs its vibration.
2. SPECIFICATION
