Automatically operated transmission and controlling method therefor
US6227063A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2000 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Jan 3, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19251
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention related to an automatically operated transmission and a controlling method therefor, and intends to restore the shift-fall shortly and securely by detecting the shift-fall even in the synchronize area, push-apart area and the piece mesh area, in the predetermined condition. The automatically operated transmission comprises a gear speed-changing mechanism 2; a synchromesh operating mechanism 30 including a sleeve 8 and a synchronizer ring 9; and an actuator 40, 50; a shifted amount detecting means 51 for detecting a shifted amount of the sleeve 8 of said synchromesh operating mechanism 30 from the neutral position to a set position D in the piece meshing area G by said actuator 40, 50; and controlling means 6 for operating said actuator 40, 50 when a fact that the sleeve 8 once reached to the shift completing position F is retracted therefrom, without a driver's shifting operation, by a retracted amount smaller than a predetermined position E in the piece meshing area G is detected by said shifted amount detecting means 51, to re-shift the sleeve toward the shift completing position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.