CVT downshift control strategy to minimize slip at the drive pulley
US5168778A · kind A · utility
25Cited by
13References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1991 |
| Grant date | Dec 8, 1992 |
| Priority date | — |
| Expiry date | Aug 29, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/66277
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
New methods for controlling an automotive continuously variable transmission (CVT) during downshifting such that chain-belt slippage will not occur. The relationship between the primary and secondary sheave forces is used to predict and control the primary force so that the primary clamping force is sufficient to prevent slippage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.