MOTOR LIFE ESTIMATION METHOD, MOTOR CONTROL SYSTEM, BLOWER SYSTEM, AND MULTICOPTER SYSTEM

PROBLEM TO BE SOLVED: To provide a motor life estimation method capable of accurately estimating the life of a motor, under such a use state that the number of revolutions changes.SOLUTION: A life estimation method of a motor driven by variable control of duty ratio estimates the life of the motor b...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUYAMA JUNYA, YAMAZAKI AKIMOTO, YOKOYAMA YUICHIRO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	AEROPLANES AIRCRAFT ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSIONTRANSMISSIONS IN AIRCRAFT AVIATION BLASTING CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER COSMONAUTICS ELECTRICITY EQUIPMENT FOR FITTING IN OR TO AIRCRAFT FLYING SUITS GENERATION HEATING HELICOPTERS LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS PARACHUTES PERFORMING OPERATIONS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS TRANSPORTING WEAPONS
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a motor life estimation method capable of accurately estimating the life of a motor, under such a use state that the number of revolutions changes.SOLUTION: A life estimation method of a motor driven by variable control of duty ratio estimates the life of the motor by calculating the life span digest, indicating the ratio of life span digest to the life, by using the following equation. L: life span digest, t: drive time in i section, L: duty ratio Din i section and lifetime of the motor at the environmental temperature 40°C, K: temperature in the i section.SELECTED DRAWING: Figure 1 【課題】回転数が変化する使用状況下に置かれたモータの寿命を精度良く推定することが可能となるモータ寿命推定方法。【解決手段】デューティ比の可変制御により駆動されるモータの寿命推定方法であって、寿命における寿命を消化した量の比率を示す寿命消化量を下記式を用いて算出することにより、前記モータの寿命を推定するモータ寿命推定方法。Ｌs：寿命消化量、ｔi：ｉ区間での駆動時間、Ｌi：ｉ区間でのデューティ比Ｄi且つ前記モータの環境温度４０℃での寿命時間、Ｋi：ｉ区間での温度【選択図】図１