7B-4 Automatic Transmission (Smoother)
The Smoother transmission is based on the MYY type
transmission, with the clutch system changed to the fluid
coupling plus gearshift clutch, and the gearshift control
box changed to a solenoid system. The transmission
receives shift lever and accelerator operation signals
and other data, and automatically engages and
disengages the gearshift clutch (wet-type multi-disc
clutch) and lock up clutch (inside the fluid coupling) to
control gear shifting.
The following are the basic operation conditions.
1. Gearshift control box
A new solenoid type control box enables electronic
control of the gear shift/select operation. A
selectable driving mode allows selection of manual
mode shifting or auto shift mode (shift up and
down) can be selected in accordance with the
application using the + /
− switch.
2. Gearshift clutch
When shifting, the gearshift clutch releases
(disengages) and gear shift control is enabled.
Legend
1. Selector Lever Unit
6. Engine Control Module (ECM)
2. Transmission Control Module (TCM)
7. Accelerator Opening Angle Signal
3. Gearshift Control Box
8. Brake Signal
4. Transmission
9. Instrument Panel Cluster (Lamps, Indicators)
5. Engine
N7A1002E