Transmission speed sensor arrangement
US4586401A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 16, 1984 |
| Grant date | May 6, 1986 |
| Priority date | — |
| Expiry date | Apr 16, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/7016
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A remote dual speed sensing arrangement for a motor vehicle automatic power transmission turbine input and output shafts aligned on a common axis. The output shaft has an axial throughbore aligned on the input shaft axis. A speed shaft is rotatably journalled in the throughbore and has one end coupled to the input shaft. The shaft opposite free end has a toothed speed wheel mounted thereon for rotation on the common axis adjacent the transmission output gear mounted on the free end of the output shaft. A pair of magnetic sensors are supported on the transmission housing in side-by-side radially offset relation. The sensors have their pickup ends juxtaposed to the periphery of the speed wheel-teeth and output shaft gearteeth, respectively. Thus, the speed of both the transmission's input and output shafts may be accurately sensed and measured from a single remote installation while obviating the generation of false speed signals between the sensors and their associated rotating teeth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.