A motor generator (12) selectively performs a power generation operation and an assisting operation. A torque transmission machine (13) performs mutual transfer among a torque of an engine (11), a torque of the motor generator, and a torque to be applied to an external load of the engine. A speed sensor measures the rotating speed of the engine. A control device (30) controls the engine and the motor generator. The control device stores a speed command value for the engine, calculates the torque generated by the motor generator based on the power required for the external load, to perform the torque control of the motor generator, and performs the speed control of the motor generator based on the difference between the rotating speed measured by the speed sensor and the speed command value. The torque control and the speed control of the motor generator can be switched.
HYBRID OPERATING MACHINE FOR A CONSTRUCTION MACHINE
HYBRIDE BETRIEBSMASCHINE FÜR EINE ARBEITSMASCHINE
MACHINE À FONCTIONNEMENT HYBRIDE POUR UN ENGIN DE TRAVAIL
2018-06-20
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / E02F Baggern , DREDGING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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 |
Construction machine and method for operating construction machine
European Patent Office | 2023
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