Speed ratio control system for continuously variable transmission
US6368247B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 27, 2000 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Apr 27, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/6612
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A continuously variable transmission that can provide a sufficient engine braking during a downhill running time with neither complicating the control nor inviting an increase in the program capacity is established. In a gear ratio control system 60 for gear ratios in the continuously variable transmission coupled to an engine, setting means 51 to 55 set a target speed of an input unit 21 of the continuously variable transmission during the downhill running time on the basis of a target output of the engine. Control means 56 controls the gear ratios of the continuously variable transmission so that the real speed of the input unit 21 may become the target speed of the input unit 21.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.