To improve accuracy of a failure determination of an EGR system while maintaining combustion stability of an engine in a failure determination device.SOLUTION: A failure determination device 20 is for an EGR system 6 applied to an engine 1 outputting driving force for causing a generator 2 to generate electric power. The failure determination device includes: first calculation means 21 for calculating engine torque A transmitted from the engine 1 to the generator 2; second calculation means 22 for calculating absorption torque B converted into electric power by the generator 2; and determination means 23 for executing a failure determination of an EGR valve 7 interposed in an exhaust recirculation flow passage of the EGR system 6 by comparing the engine torque A with the absorption torque B.SELECTED DRAWING: Figure 1
【課題】故障判定装置に関し、エンジンの燃焼安定性を維持しながらEGRシステムの故障判定の精度を改善する。【解決手段】開示の故障判定装置20は、ジェネレータ2に発電させるための駆動力を出力するエンジン1に適用されるEGRシステム6の故障判定装置であって、エンジン1からジェネレータ2に伝達されるエンジントルクAを算出する第一算出手段21と、ジェネレータ2で電力に変換される吸収トルクBを算出する第二算出手段22と、エンジントルクAと吸収トルクBとを比較して、EGRシステム6の排気還流路に介装されるEGR弁7の故障判定を実行する判定手段23と、を備える。【選択図】図1
FAILURE DETERMINATION DEVICE
故障判定装置
2023-02-16
Patent
Electronic Resource
Japanese
IPC: | F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / 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 |
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