Park - Engine Running (Mechanical Powerflow)
In Park range, there are two levels of power flow coexisting: torque from the engine and torque from the vehicle. The graphics will follow each flow separately by numerical designation, which relates to the following text.
1. Torque from the Engine - Forward Clutch Driven
As the torque converter turbine rotates, the turbine shaft of the forward clutch (106), which is splined to the torque converter turbine, is also forced to rotate at turbine speed.
2. Power Flow Terminated at Variable Drive Pulley
Not having either the forward or reverse clutch applied, torque cannot be transferred to the variable drive pulley, thus power flow is terminated.
3. Torque from the Vehicle Possibly Parked on an Incline (Force of Gravity) Torque from Wheels to Front Differential Pinions
Torque from the vehicle travels through the wheels to the front differential carrier (23), and is transferred to the front differential drive pinion gear (8).
4. Parking Lock Gear Held/Power Flow Terminated at Variable Driven Pulley
The parking lock gear is held by the park pawl (411). The parking lock gear is part of the variable driven pulley. Therefore, power flow is terminated at the variable driven pulley.