永磁無刷馬達(BLDC)運用模糊控制技術於
引擎冷卻系統之研究

本文針對永磁無刷馬達運用模糊控制技術於引擎冷卻系統之研究，引擎冷卻系統無論在各種型式車輛上都採用皮帶驅帶動風扇。只有運用於小轎車和輕型貨車上採用電動馬達風扇，但是風扇馬達卻都是採用直流有刷馬達，且控制也都是採用開關式控制法，只有高低速兩段風量無法隨冷卻系統需要隨時調整風扇輸出，電流過高的問題也是常常讓風扇損壞的原因之一，因而增加引擎負荷、油耗和風扇馬達的磨損。因此本論文針對引擎冷卻風扇馬達以永磁無刷馬達來取代傳統直流有刷馬達，並以水溫訊號配合智慧型模糊控制理論，將撰寫之程式藉由Silicon Laboritories公司之Microcontroller Development Tools 輸入微控制器C8051F330，輸出至建置之硬體模型進行模擬分析。模擬結果顯示永磁無刷馬達應用模糊理論能夠穩定維持所指定之轉速，亦能隨著水溫之模糊邏輯使風扇轉速快速的反應，在實際應用於引擎冷卻系統中，應能維持引擎最佳工作溫度，提升引擎效率，並降低風扇無謂的運轉，減少風扇馬達之耗損，提高冷卻風扇壽命；期望將模糊控制理論能落實於實務設計中，進而提升引擎運轉效能和減少油耗。關鍵字：永磁;無刷馬達;模糊理論

關鍵字

永磁；無刷馬達；模糊理論

並列摘要

In this paper, the permanent magnet synchronous motor using fuzzy control technique in engine cooling system was studied. The engine cooling systems in a variety of types of vehicles use belt-driven fan mostly. Only cars and light goods vehicles use electric fan motors, but they are brush DC motors and use switch-mode control law; however, the fan output of two alternatives can not be adjusted with the cooling system at any time. The problem of excessively high current is also often one of the reasons that fans damage. Thus it increases the engine load, fuel consumption and the wear and tear of fan motor. Therefore, this paper replaces the traditional brush DC motors with permanent magnet synchronous motor for the engine cooling fan motors, and the water tank with water temperature is operated with intelligent fuzzy control theory. The program is inputted into C8051F330 by Silicon Laboritories companies Microcontroller MCU Development Tools. The output of the hardware builds simulation models. The simulation results showed that the application of engine cooling system using fuzzy theory maintained the stability to keep the best rotation rate of the engine. The use of permanent magnet synchronous motor with the water temperature fuzzy logic responses fast. It keeps the best temperature of the engine as well as decreases unnecessary operation of fan, reduces the wear and tear on the fan motor and improve life of cooling fan. This study can enhance performance and reduce fuel consumption in practice. Key Word：Permanent magnet;Brushless;Fuzzy

並列關鍵字

Permanent magnet ； Brushless ； Fuzzy

參考文獻

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