Method, equipment and device for detecting oxygen storage amount of automobile catalyst, and storage medium
The invention discloses a method, equipment and device for detecting an oxygen storage amount of an automobile catalyst, and a storage medium, and relates to the technical field of vehicle diagnosis.The method comprises the steps of adjusting the concentration of mixed gas in the automobile catalyst...
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| creator | YANG SHOUHAI HUANG DONGJIE LI ZHANFAN YANG HAN HE CHAO WEI QIPENG WU SONG HUANG GUOHAI |
| description | The invention discloses a method, equipment and device for detecting an oxygen storage amount of an automobile catalyst, and a storage medium, and relates to the technical field of vehicle diagnosis.The method comprises the steps of adjusting the concentration of mixed gas in the automobile catalyst; detecting a filtered air mass flow parameter and an excess air coefficient of the automobile catalyst and a voltage value of a rear oxygen sensor in the automobile catalyst in real time while the concentration of the mixed gas is adjusted; when it is detected that a target excess air coefficientmeeting a first preset condition exists, determining a first oxygen storage amount value according to a first filtered air mass flow parameter corresponding to the target excess air coefficient; whenit is detected that a target voltage value meeting a second preset condition exists, determining a second oxygen storage amount value according to a second filtered air mass flow parameter corresponding to the target voltage va |
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WEI QIPENG ; WU SONG ; HUANG GUOHAI</creatorcontrib><description>The invention discloses a method, equipment and device for detecting an oxygen storage amount of an automobile catalyst, and a storage medium, and relates to the technical field of vehicle diagnosis.The method comprises the steps of adjusting the concentration of mixed gas in the automobile catalyst; detecting a filtered air mass flow parameter and an excess air coefficient of the automobile catalyst and a voltage value of a rear oxygen sensor in the automobile catalyst in real time while the concentration of the mixed gas is adjusted; when it is detected that a target excess air coefficientmeeting a first preset condition exists, determining a first oxygen storage amount value according to a first filtered air mass flow parameter corresponding to the target excess air coefficient; whenit is detected that a target voltage value meeting a second preset condition exists, determining a second oxygen storage amount value according to a second filtered air mass flow parameter corresponding to the target voltage va</description><language>chi ; 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| language | chi ; eng |
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| subjects | BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS |
| title | Method, equipment and device for detecting oxygen storage amount of automobile catalyst, and storage medium |
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