Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Electronically controlled CVTs?

Status
Not open for further replies.

Jack Patton

Mechanical
Joined
Aug 9, 2017
Messages
1
Location
US
How do Electronically controlled CVTs, such as the one shown in this video , work? I'm familiar with centrifugally controlled CVTs but not very much with this type of CVT

Thanks.
 
A suitable mechanism drives one of the cones in or out relative to the other one, on one shaft, and the one on the other shaft has a tensioning mechanism in it.

That "suitable mechanism" in this case appears to be a stepper or servo motor of some sort. In automotive applications, more commonly it's hydraulic. The electronics operate a directional valve that either pumps more fluid into the chamber behind one of the cones, or vents fluid out of that chamber.
 
Is there always slippage between the pulleys and belt during all phases of operation in a CVT?
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top