ELECTROMECHANICAL ACTUATOR AND EFFECTOR HEALTH MANAGEMENT SYSTEM AND METHOD
First Claim
1. A method of supplying health status information for an electromechanical actuator (EMA) to a control system, comprising the steps of:
- determining whether the EMA has experienced a fault;
if the EMA has experienced a fault, determining, based on the fault, a fault-based position limit and a fault-based rate limit of the EMA;
supplying a design position limit and a design rate limit of the EMA;
determining an updated position limit of the EMA based on at least the design position limit and the fault-based position limit; and
determining an updated rate limit of the EMA based on at least the design rate limit and the fault-based rate limit.
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Accused Products
Abstract
A system and method are provided for supplying electromechanical actuator (EMA) health status information to a control system. A determination is made as to whether the EMA has experienced a fault. If the EMA has experienced a fault, a fault-based position limit and a fault-based rate limit of the EMA are determined, based on the fault. A design position limit and a design rate limit of the EMA are supplied. An updated position limit of the EMA is determined based on at least the design position limit and the fault-based position limit, and an updated rate limit of the EMA is supplied based on at least the design rate limit and the fault-based rate limit.
22 Citations
18 Claims
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1. A method of supplying health status information for an electromechanical actuator (EMA) to a control system, comprising the steps of:
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determining whether the EMA has experienced a fault; if the EMA has experienced a fault, determining, based on the fault, a fault-based position limit and a fault-based rate limit of the EMA; supplying a design position limit and a design rate limit of the EMA; determining an updated position limit of the EMA based on at least the design position limit and the fault-based position limit; and determining an updated rate limit of the EMA based on at least the design rate limit and the fault-based rate limit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of controlling an electromechanical actuator (EMA), comprising the steps of:
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determining whether the EMA has experienced a fault; if the EMA has experienced a fault, determining, based on the fault, a fault-based position limit and a fault-based rate limit of the EMA; supplying a design position limit and a design rate limit of the EMA; determining an updated position limit of the EMA based on at least the design position limit and the fault-based position limit; determining an updated rate limit of the EMA based on at least the design rate limit and the fault-based rate limit; supplying the updated position and rate limits of the EMA to a controller; and controlling the EMA based on the updated position and rate limits.
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11. An electromechanical actuator (EMA) health management system, comprising:
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memory having stored therein data representative of a design position limit and a rate position limit of the EMA; a fault determination module in operable communication with the EMA, the fault determination module configured to determine whether the EMA has experienced a fault and, if the EMA has experienced a fault, to determine a fault-based position limit and a fault-based rate limit of the EMA; a fusion module in operable communication with the memory and the fault determination module to receive therefrom the design position and rate limits and the fault-based position and rate limits, respectively, the fusion module configured to determine (i) an updated position limit of the EMA based on at least the design position limit and the fault-based position limit and (ii) an updated rate limit of the EMA based on at least the design rate limit and the fault-based rate limit. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification