double-mesh prevention device using an interlock
plate and a reverse mis-shift prevention device using
a stopper plate are adopted in the shift control
system.
The construction and operation of the double-mesh
prevention device, and reverse mis-shift prevention
device are basically the same as on the 4WD trans-
mission previously used.
PLANETARY GEAR TYPE CENTRE DIFFERENTIAL
Outer pinion
Viscous coupling
Front output shaft
Front output
Centre differential case (ring gear)
Furthermore, since there is a viscous coupling built in this centre
differential, when a rotational speed difference arises between
the front output shaft and centre shaft, differential control torque
is redistributed according to that difference so that the ideal drive
force is always maintained.
In addition, unequal torque distribution is used in this centre
differential.
09F0126
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POWER-TRANSMISSION COMPONENTS - Manual Transmission
W5MG1 4WD TRANSMISSION
The W5MG1 is a 3-shaft, full time 4WD transmission.
It is not only a planetary gear type differential with the
center differential on the NO.3 shaft used, but also a
viscous coupling acting as a differential limiter that is
built into the front and rear output shafts.
The gear meshing method is a constant-mesh meth-
od also used for reverse.
The reverse idler gear is on the rear cover.
A double-cone synchronizer is used for 1st speed and
2nd speed for improved shift feeling.
The centre differential has the construction shown in the figure
above, and is made up of the differential case (integral part of
ring gear), outer pinions (3 pc.), inner pinions (3 pc.), carrier, sun
gear, front output shaft, centre shaft and viscous coupling. Drive
force input from the outside of the differential case is transmitted
to the outer pinions and inner pinions by the ring gear on the
inside of the case, from there is distributed to the sun gear and
carrier to be transmitted to the front output shaft and centre shaft.
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