Method and apparatus to control a continuously variable transmission
US10190684B2 · kind B2 · utility
1Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2015 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Apr 18, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/6615
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A powertrain system including an internal combustion engine rotatably coupled to a continuously variable transmission (CVT) is described. A method for controlling the CVT includes determining minimum and maximum CVT input speeds in response to an accelerator pedal position, and monitoring vehicle speed and a CVT input speed. A target CVT input acceleration rate is determined based upon the vehicle speed, and a desired speed ratio is determined that is responsive to the target CVT input acceleration rate. The CVT is controlled based upon the desired speed ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.