CVT System Description - Power Flow

CVT System Description - Power Flow

Power Flow

P Position

Hydraulic pressure is not applied to the start clutch, the forward clutch, and the reverse brake. Power is not transmitted to the secondary drive gear. The secondary drive gear is locked by the park pawl interlocking the park gear.

N Position

Engine power transmitted from the flywheel drives the input shaft, but hydraulic pressure is not applied to the forward clutch and the reverse brake. Power is not transmitted to the drive pulley shaft. Also hydraulic pressure is not applied to the start clutch.






Forward Range; D, S, and L Positions

- Forward clutch: engage
- Reverse brake: disengage
- Start clutch: engage
- Hydraulic pressure is applied to the forward clutch and the start clutch, and the sun gear drives the forward clutch.
- The forward clutch drives the drive pulley shaft, which drives the driven pulley shaft linked by the steel belt.
- The driven pulley shaft drives the secondary drive gear via the start clutch.
- Power is transmitted to the secondary driven gear and the final drive gear, which in turn drives the final driven gear.





Reverse Range; R position

- Forward clutch: disengage
- Reverse brake: engage
- Start clutch: engage
- Hydraulic pressure is applied to the reverse brake and the start clutch, and the planetary carrier locks with the reverse brake.
- The sun gear drives the planetary pinion gears to rotate, and the planetary pinion gears drive the ring gear in the opposite direction from the rotational direction of the sun gear.
- The ring gear drives the drive pulley shaft via the forward clutch drum, and the drive pulley shaft drives the driven pulley shaft linked by the steel belt.
- The driven pulley shaft drives the secondary drive gear via the start clutch.
- Power is transmitted to the secondary driven gear and the final drive gear, which in turn drives the final driven gear.