PROBLEM TO BE SOLVED: To efficiently carry out failure determination in a series mode while suppressing a reduction in the charge rate of a drive battery of a vehicle.SOLUTION: A failure determination device is provided in a hybrid vehicle which comprises an engine 2 provided with an EGR passage 42 and an EGR valve 43, a motor-generator connected to the engine 2, and a drive motor driving drive wheels of the vehicle, which can select a series mode, and which enables motoring for driving the engine 2 by the motor-generator, the failure determination device gives priority to first failure determination means determining whether a failure occurs to the EGR valve 43 on the basis of a change in a detection value of an intake pressure sensor 44 when the EGR valve 43 is controlled to open/close the EGR passage in the series mode when execution of both the first failure determination means and second failure determination means are requested, the second failure determination means determining whether a failure occurs to sensors 34, 35 of an exhaust system on the basis of detection values of the sensors of the exhaust system by executing motoring in the series mode to stop and restart the supply of fuel to the engine 2.SELECTED DRAWING: Figure 2
【課題】車両の駆動用バッテリの充電率低下を抑えつつ、シリーズモード中での故障判定を効率良く行う。【解決手段】EGR通路42及びEGRバルブ43を備えたエンジン2と、エンジン2に接続されたモータジェネレータと、車両の駆動輪を駆動する駆動用モータと、を具備し、シリーズモードが選択可能であるとともに、モータジェネレータによってエンジン2を駆動するモータリングが可能なハイブリッド車に備えられた故障判定装置であって、シリーズモード中にEGRバルブ43を開閉制御した際の吸気圧センサ44の検出値の変化に基づいてEGRバルブ43の故障判定をする第1の故障判定手段と、シリーズモード中にモータリングを実行してエンジン2への燃料供給の停止及び再開での排気系のセンサ34、35の検出値に基づき当該排気系のセンサの故障を判定する第2の故障判定手段の両方が実行要求された場合に、第1の故障判定手段を優先する。【選択図】図2
HYBRID VEHICLE FAILURE DETERMINATION DEVICE
ハイブリッド車の故障判定装置
30.06.2016
Patent
Elektronische Ressource
Japanisch
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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF |
Failure determination device of hybrid vehicle and its failure determination method
Europäisches Patentamt | 2017
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