Gearshift device for automatic transmission
US7552659B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2006 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | Jun 2, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20018
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gearshift device includes a gearshift lever adapted to move a plurality of gear selection positions, and a gear selection position detecting unit which detects a gear selection position. The gear selection position detecting unit has a magnet plate disposed at a lower end portion of the gearshift lever and movable in accordance with a movement of the gearshift lever and primary magnetic sensors and at least one secondary magnetic sensor, which are disposed so as to oppose to the magnet plate in a non-contact fashion at predetermined positions based on the individual gear selection positions. The primary magnetic sensor detects magnetic flux density and outputs ON/OFF signals in accordance with intensity of the detected magnetic flux density The secondary magnetic sensor detects magnetic flux density and outputs an output value according to the detected magnitude of the magnetic flux density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.