Actuator for shift-by-wire automatic transmission system
US7354372B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 13, 2007 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | Jun 13, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/326
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electric actuator for an automatic transmission includes an adapter to transmit rotary motion between the adapter and the automatic transmission. An electric motor has an output shaft operably connected to the adapter by a gear set which includes a ring gear. The gear set reduces speed and increases torque supplied by the output shaft of the electric motor and applied to the adapter. A release mechanism is operably connected to the gear set and includes a lock member movable between a first position wherein the lock member is in engagement with the ring gear to lock the ring gear against rotary motion in both directions and a second position wherein the lock member is out of engagement with the ring gear to permit rotary motion of the ring gear in both directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.