System Description

STRUCTURE AND OPERATION

MECHANICAL SYSTEM : System Description

Traction force of engine is transmitted to wheel via torque converter, planetary gear, belt, pulley, differential gear, and others. Also includes a parking mechanism that mechanically fixes secondary pulley when selector lever is shifted to the "P" position.

ACTIVATION STATE ACCORDING TO EACH SHIFTING

x: Operates






POWER TRANSMISSION

"P" position
- Traction force from input shaft is not transmitted to primary pulley because forward clutch and reverse brake are not engaged and run idle.
- Torque from the wheels is not transmitted to secondary pulley because secondary pulley is mechanically fixed when parking pole that is linked with selector lever is engaged with parking gear that is integrated with secondary pulley.





Planetary gear





"R" position
- Traction force from input shaft rotates sun gear in opposite direction of input shaft rotation because reverse brake is engaged and planetary gear is fixed.
- Therefore primary pulley rotates in opposite direction of input shaft rotation and traction force output is in opposite direction rotation.





Planetary gear





"N" position
- Traction force from input shaft is not transmitted to primary pulley because forward clutch and reverse brake are not engaged and run idle.
- Torque from wheel is not transmitted to input shaft because forward clutch and reverse brake are not engaged and planetary carrier runs idle.





Planetary gear





"D" position
- Traction force from input shaft rotates sun gear via forward clutch in the same direction of input shaft because forward clutch is engaged.
- Therefore primary pulley rotates in the same direction of input shaft rotation and traction force output is in the same direction rotation.





Planetary gear