Continuously variable transmission belt ratio measurement system
US5310384A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 29, 1993 |
| Grant date | May 10, 1994 |
| Priority date | — |
| Expiry date | Mar 29, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/66259
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A continuously variable transmission having a belt ratio measurement system. The continuously variable transmission contains a moveable sheave and a fixed sheave. The measurement system includes two tone wheels and pickups. The first tone wheel is mounted to the fixed sheave with a corresponding first pickup mounted proximate thereto. The second tone wheel is mounted to the moveable sheave with a corresponding second pickup mounted proximate thereto. The second tone wheel has angled teeth so that the signal sensed in the second pickup varies in relation to the axial position of the moveable sheave. By comparing the signal sensed by the first pickup with the signal sensed by the second pickup, the axial position of the moveable sheave, and thus the belt ratio of the transmission, may be determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.