Invention Grant
- Patent Title: Method and system for engine windmilling control
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Application No.: US16368024Application Date: 2019-03-28
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Publication No.: US11745863B2Publication Date: 2023-09-05
- Inventor: Kashif Mohammed , Patrick Manoukian , Patrice Remy
- Applicant: PRATT & WHITNEY CANADA CORP.
- Applicant Address: CA Longueuil
- Assignee: PRATT & WHITNEY CANADA CORP.
- Current Assignee: PRATT & WHITNEY CANADA CORP.
- Current Assignee Address: CA Longueuil
- Agency: Norton Rose Fulbright Canada LLP
- Main IPC: H02P3/08
- IPC: H02P3/08 ; B64C27/57 ; B64C27/32 ; F02C7/268 ; F02N11/08

Abstract:
Methods and systems for controlling windmilling in an engine are described. An electric starter motor is coupled to the engine, a circuit element is coupled to the electric starter engine and to a DC signal source, and a control system coupled to the engine and to the circuit element. The control system is configured for: determining whether the engine is in a windmilling state; when the engine is in a windmilling state, commanding the circuit element to apply a DC signal to the electric starter motor; and modulating the DC signal applied to the electric starter motor to control a level of rotational motion of the engine.
Public/Granted literature
- US20200283138A1 METHOD AND SYSTEM FOR ENGINE WINDMILLING CONTROL Public/Granted day:2020-09-10
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