To suppress noise during drum operation, and drive a drum under a balanced condition from viewpoints of suppression of energy consumption and improvement of work efficiency.SOLUTION: A target drum rotation speed Nt in response to operation is calculated (a step S402), a pump capacity Vp and an engine rotation speed Ne are determined by setting a motor capacity Vm at a maximum, and a drum is driven by Nt (steps S405-S411). A drive pressure P and a threshold P1 of the drum are compared (steps S413, S414), and the Ne and an idle rotation speed Nmin are compared (steps S415, S416). When P
【課題】ドラム動作時の騒音を抑制し、消費エネルギーの抑制と作業効率の向上の観点でバランスのとれた条件でドラムを駆動する。【解決手段】操作に応じた目標ドラム回転数Ntを演算し(ステップS402)、モータ容量Vmを最大に設定してポンプ容量Vp及びエンジン回転数Neを決定し、Ntでドラムを駆動し(ステップS405−S411)、ドラムの駆動圧Pと閾値P1とを比較し(ステップS413,S414)、Neとアイドル回転数Nminとを比較し(ステップS415,S416)、P<P1でNe=Nminの場合、Nd一定でVm,Vpを減少補正し(ステップS417)、P<P1でNe≠Nminの場合、Nd一定でVm.Neを減少補正する(ステップS418)。【選択図】図8
TRUCK MIXER
ミキサ車
2020-04-30
Patent
Electronic Resource
Japanese
IPC: | B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein |
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