Method and system for automated control of transmission ratio change
US8965645B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 25, 2009 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Oct 13, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/0227
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method and system for automated control of transmission ratio change which balances the requirements for power with energy efficiency. A plurality of sensors detect environmental conditions of a vehicle. An environmental conditions analysis unit analyzes the environmental conditions to determine whether the detected environmental conditions indicate a likelihood of a transmission ratio increase. When the detected environmental conditions indicate the likelihood of the transmission ratio increase, an automatic transmission changes in operation from a normal state to a prepared state. However, after a predetermined amount of time, the automatic transmission changes from the prepared state back to the normal state when there is no user indication that the transmission ratio should be increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.