A shovel is provided that includes a lower running body, an upper turning body pivotally mounted on the lower running body, an engine mounted on the upper turning body, a motor generator driven by the engine, a power storage device for storing electric power generated by the motor generator, an electric motor for supplying regenerative electric power to the power storage device, a selective reduction catalyst system for purifying exhaust gas by injecting a reducing agent stored in a reducing agent storage tank into an exhaust pipe of the engine, an abnormality detection unit for detecting an abnormality of the selective reduction catalyst system, and a control device that performs abnormality determination on the selective reduction catalyst system based on a detection result of the abnormality detection unit. The control device continues to control the electric motor before and after the abnormality determination.
Shovel and shovel control method
2019-01-29
Patent
Electronic Resource
English
IPC: | 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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / E02F Baggern , DREDGING / F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL , Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein |
SHOVEL, SHOVEL CONTROL DEVICE, AND SHOVEL SUPPORT DEVICE
European Patent Office | 2022
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