Speed ratio control device for vehicle
US6505139B1 · kind B1 · utility
5Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2000 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Sep 29, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/6616
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The vehicle comprises a continuously variable transmission and traction control system (TCS) which controls a driving force. When the TCS is not operating, a controller computes a final target ratio based on a sensor detected vehicle speed. When the TCS is operating, the final target ratio is computed based on an estimated vehicle speed, and the final target ratio is limited by a speed ratio upper limiting value computed based on the sensor detected vehicle speed. The controller controls a speed change actuator so that a real speed ratio approaches the final target ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.