Invention Grant
- Patent Title: Motor velocity control within an aircraft hydraulic system
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Application No.: US15760147Application Date: 2016-09-09
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Publication No.: US10263545B2Publication Date: 2019-04-16
- Inventor: John David Neely , John Mendenhall White
- Applicant: Eaton Intelligent Power Limited
- Applicant Address: IE Dublin
- Assignee: EATON INTELLIGENT POWER LIMITED
- Current Assignee: EATON INTELLIGENT POWER LIMITED
- Current Assignee Address: IE Dublin
- Agency: Merchant & Gould P.C.
- International Application: PCT/US2016/051007 WO 20160909
- International Announcement: WO2017/048600 WO 20170323
- Main IPC: H02P6/17
- IPC: H02P6/17 ; H02P6/00 ; H02P23/14 ; F04B49/20 ; F04B49/06

Abstract:
A system comprises an aircraft hydraulic system motor, a position sensor, and a programmable controller. The aircraft hydraulic system motor includes a rotor whose position is detected by the position sensor. The position sensor produces an output representative of that position. The programmable controller is configured to receive the output of the position sensor and calculate an estimated velocity of the aircraft hydraulic system motor based on the output of the position sensor. The calculation of the estimated velocity comprises determining both a high bandwidth velocity estimation and a low bandwidth velocity estimation. The programmable controller is additionally configured to compare the estimated velocity to a desired velocity and direct the aircraft hydraulic system motor to increase or decrease velocity based on the comparison.
Public/Granted literature
- US20180269815A1 MOTOR VELOCITY CONTROL WITHIN AN AIRCRAFT HYDRAULIC SYSTEM Public/Granted day:2018-09-20
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