一种发动机负载的安全供电方法及装置

By calculating the cumulative heat load of the load equipment and setting a preset threshold, the power supply is automatically shut off, which solves the problem of safe power supply for equipment such as cooling fans in high-heat environments in the existing technology, realizes the safety protection of the engine electronic control system, and improves the reliability and safety of the system.

CN116771507BActive Publication Date: 2026-07-17AECC COMML AIRCRAFT ENGINE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
AECC COMML AIRCRAFT ENGINE CO LTD
Filing Date
2022-03-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies lack a scheme for controlling shutdown based on the accumulation of heat in the equipment, especially for special load equipment such as cooling fans, resulting in the lack of safe power supply protection for the engine electronic control system in high-heat environments.

Method used

By obtaining the actual operating current and rated current of the load device, the accumulated heat is calculated using the protection curve, and a preset threshold is set. When the accumulated heat exceeds the threshold, the power supply to the load device is automatically cut off. The heat accumulation is calculated using the formula T=K/(N0.02-1), and the preset threshold range is 110% to 120% to achieve safe power supply.

Benefits of technology

It effectively prevents equipment overheating, reduces the probability of failure, and improves system reliability and sensitivity, especially protecting the cooling fan and enhancing the safety and reliability of the overall control system.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明提供了一种发动机负载的安全供电方法及装置,包括:获取流经负载设备的实际工作电流和负载设备的额定电流;响应于实际工作电流超过额定电流,根据保护曲线计算在负载设备上的累加热量,负载设备包括发动机电子控制器的冷却风机,保护曲线包括冷却风机的标准过流曲线,标准过流曲线表征了冷却风机的工作时间与过流倍数指数的反比关系,过流倍数为实际工作电流与额定电流的比值;以及响应于负载设备的累加热量超过预设阈值,关断负载设备的供电以进行保护。
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