Invention Grant
- Patent Title: Speed control for back-drive power actuator
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Application No.: US15643878Application Date: 2017-07-07
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Publication No.: US10202051B2Publication Date: 2019-02-12
- Inventor: Curtis Hudson , Craig Elder , Mark R. Keyser
- Applicant: LEAR CORPORATION
- Applicant Address: US MI Southfield
- Assignee: LEAR CORPORATION
- Current Assignee: LEAR CORPORATION
- Current Assignee Address: US MI Southfield
- Agency: Brooks Kushman P.C.
- Main IPC: H02P1/54
- IPC: H02P1/54 ; B60N2/06 ; B60N2/225 ; H01L29/866 ; B60N2/02

Abstract:
A back-drive speed control system for incorporation into an actuated vehicle seating system includes an actuator having a permanent magnet and a coil that can move relative to each other to create a voltage across a first terminal and a second terminal. The actuator is adapted to move a linkage in an actuated vehicle seating system. A biasing member moves one or both of the permanent magnet and the coil such that the first terminal has a positive potential relative to the second terminal. The back-drive speed control system further includes a first diode and a Zener diode in series connected across the first terminal and the second terminal such that the forward current direction of the first diode is oriented in the opposite direction to the forward current direction of the Zener diode.
Public/Granted literature
- US20190009696A1 SPEED CONTROL FOR BACK-DRIVE POWER ACTUATOR Public/Granted day:2019-01-10
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