To allow an electric drive work machine to move to a charging facility by itself, regardless of a movement distance from a work site to the charging facility.SOLUTION: When an electric drive hydraulic excavator 1 travels from a charging facility 2 to a work site, a controller 100 calculates a reduction amount of a battery 20 used in a travel from a value measured by a battery voltage measurement device 22, sets a warning threshold value V1 based on a value obtained by adding the reduction amount to a preset limit battery voltage V0, and performs warning processing for urging the electric drive hydraulic excavator 1 to move to the charging facility 2 of the battery 20 if the remaining amount of the battery 20 decreases to the warning threshold value V1.SELECTED DRAWING: Figure 3

    【課題】作業現場から充電設備までの移動距離に関係なく、確実に充電設備まで自力で移動することができるようにする。【解決手段】コントローラ100は、電気駆動式油圧ショベル1が充電設備2から作業現場まで走行するとき、バッテリ電圧計測装置22によって計測された値からその走行で使用したバッテリ20の減量を算出し、この減量を予め設定した限界バッテリ電圧V0に加算した値に基づいて警告閾値V1を設定し、バッテリ20の残量が警告閾値V1まで減少したとき、電気駆動式油圧ショベル1のバッテリ20の充電設備2への移動を促す警告処理を行う。【選択図】図3


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    Title :

    ELECTRIC DRIVE WORK MACHINE


    Additional title:

    電気駆動式作業機械


    Contributors:
    HO KA (author)

    Publication date :

    2020-08-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    E02F Baggern , DREDGING / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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