Documentation

This is machine translation

Translated by Microsoft
Mouseover text to see original. Click the button below to return to the English verison of the page.

Note: This page has been translated by MathWorks. Please click here
To view all translated materals including this page, select Japan from the country navigator on the bottom of this page.

Simpson Three-Speed Transmission

This example shows a Simpson transmission with three forward speeds and one reverse speed. Two planetary gear sets are linked with a common sun gear. Two disk friction clutches and two band brakes determine which components can rotate relative to one another which determines the final gear ratio. The Clutch Schedule subsystem shows which clutches and brakes should be locked for each forward or reverse speed.

Model

Transmission Subsystem

Simulation Results from Simscape Logging

The plot below shows the speed of the input and output shafts of the Simpson 3-speed transmission. This test cycles through four gear ratios, three for forward and one for reverse. The states of the two clutches and two band brakes are also shown.

Was this topic helpful?