wunder beta📘 The transmission sits between engine and wheels
An automatic transmission is a managed power path between the engine and the drive wheels.
What you’ll learn
- Power path
- Planetary gears
- Clutches and brakes
- Hydraulic pressure
- Shift decisions
- Shift quality
- Complete sequence
Questions this course answers
What connects the engine to a conventional automatic transmission during launch?
The torque converter provides a fluid connection and can multiply torque at launch.
Why can the engine keep running when the vehicle is stopped in Drive?
Fluid slip lets the engine and transmission turn at different speeds.
What does the transmission pump mainly provide?
The pump circulates and pressurizes fluid for the transmission's hydraulic work.
Which three members belong to a simple planetary gearset?
Those are the central, orbiting, carrier, and outer members of the gearset.
How does a planetary gearset create different ratios?
The gearset stays meshed while constraints on its members change.
What does the carrier hold?
The carrier supports the planet gears and lets them orbit the sun.
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