To diagnose presence or absence of air leakage in an intake passage.SOLUTION: A vehicle 1 includes: an engine 10; a first motor generator 21 coupled to the engine 10, and an HV-ECU 110 that is configured to be able to perform motoring control of rotating a crankshaft of the engine 10 by the first motor generator 21. The engine 10 includes: an intake air passage 13; a supercharger 15 provided in the intake air passage 13; and an air flow meter 131 that detects flow rate of air (suctioned air amount Q) that passes through the intake air passage 13. The HV-ECU 110 diagnoses that air leakage occurs in the intake air passage 13 when the suctioned air amount Q is less than a reference amount REF during execution of the motoring control.SELECTED DRAWING: Figure 5
【課題】吸気通路における空気漏れの有無を診断する。【解決手段】車両1は、エンジン10と、エンジン10に連結された第1モータジェネレータ21と、第1モータジェネレータ21によりエンジン10のクランクシャフトを回転させるモータリング制御を実行可能に構成されたHV−ECU110とを備える。エンジン10は、吸気通路13と、吸気通路13に設けられた過給器15と、吸気通路13を通過する空気の流量(吸入空気量Q)を検出するエアフローメータ131とを含む。HV−ECU110は、モータリング制御の実行中に吸入空気量Qが基準量REFに満たない場合に、吸気通路13に空気漏れが発生していると診断する。【選択図】図5
HYBRID VEHICLE AND METHOD OF DIAGNOSING ABNORMAL OF THE SAME
ハイブリッド車両およびその異常診断方法
2020-10-15
Patent
Electronic Resource
Japanese
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 / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen |
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