Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Apparatus and method for controlling engine revolutions for excavator
An apparatus and method for controlling engine revolutions for an excavator is provided, which can set the excavator not to perform a normal operation so as to induce an operator to check an air cleaner (20) by reducing a flow rate of hydraulic fluid discharged from a hydraulic pump (60) through lowering of the engine revolutions if an operator disregards a warning signal for requiring the operator to check an engine intake system and continues the excavator work even when a predetermined time elapses after transfer of the warning signal or the warning signal is transferred over a predetermined number of times. The apparatus includes an engine (10) and a hydraulic pump (60), an air cleaner (20) for filtering out foreign substances included in outside air being inhaled into an engine combustion chamber, a pressure sensor (30), installed in a bypass between the air cleaner (20) and the engine combustion chamber, for detecting pressure of the air in the bypass, and an electronic control unit (40) for outputting a warning signal for requiring an operator to check the air cleaner (20) if the pressure signal exceeds a reference pressure value, and lowering the engine revolutions and reducing the flow rate from the hydraulic pump (60) if the operator disregards the warning signal and continues the excavator work after the transfer of the warning signal.
Apparatus and method for controlling engine revolutions for excavator
An apparatus and method for controlling engine revolutions for an excavator is provided, which can set the excavator not to perform a normal operation so as to induce an operator to check an air cleaner (20) by reducing a flow rate of hydraulic fluid discharged from a hydraulic pump (60) through lowering of the engine revolutions if an operator disregards a warning signal for requiring the operator to check an engine intake system and continues the excavator work even when a predetermined time elapses after transfer of the warning signal or the warning signal is transferred over a predetermined number of times. The apparatus includes an engine (10) and a hydraulic pump (60), an air cleaner (20) for filtering out foreign substances included in outside air being inhaled into an engine combustion chamber, a pressure sensor (30), installed in a bypass between the air cleaner (20) and the engine combustion chamber, for detecting pressure of the air in the bypass, and an electronic control unit (40) for outputting a warning signal for requiring an operator to check the air cleaner (20) if the pressure signal exceeds a reference pressure value, and lowering the engine revolutions and reducing the flow rate from the hydraulic pump (60) if the operator disregards the warning signal and continues the excavator work after the transfer of the warning signal.
Apparatus and method for controlling engine revolutions for excavator
Vorrichtung und Verfahren zur Steuerung der Motordrehzahl für einen Bagger
Appareil et procédé de contrôle des révolutions du moteur d'une excavatrice
YANG HAK YONG (Autor:in)
15.03.2017
Patent
Elektronische Ressource
Englisch
IPC:
E02F
Baggern
,
DREDGING
/
B60W
CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION
,
Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion
/
F02D
CONTROLLING COMBUSTION ENGINES
,
Steuern oder Regeln von Brennkraftmaschinen