Crankcase ventilation pipe connecting diagnostic system and vehicle

Abstract

The invention discloses a crankcase ventilation pipe connection diagnosis system and a vehicle, wherein the crankcase ventilation pipe connection diagnosis system comprises: a crankcase ventilation pipe and a detection circuit. The crankcase ventilation pipe is connected between the first member and the second member; the detection circuit is configured to: when the crankcase ventilation pipe is disconnected from at least one of the first member and the second member When connected, the detection circuit conducts and detects and reports a fault to the crankcase ventilation pipe, and when the crankcase ventilation pipe is connected to both the first component and the second component, the detection circuit is disconnected. open. The crankcase ventilation pipe connection diagnostic system detects the connection state of the crankcase ventilation pipe connection and performs the crankcase ventilation pipe only when the crankcase ventilation pipe is disconnected from at least one of the first member and the second member. Detection and reporting of faults to avoid false detection and reporting of faults caused by the aging of the crankcase ventilation pipe to ensure the accuracy of detection and reporting of faults.

Description

Technical field [0001] The present invention relates to the field of vehicle technology, and in particular, there is a crankcase ventilation tube connection diagnostic system and a vehicle. Background technique [0002] The traditional crankcase ventilation tube connection diagnostic system is connected to the crankcase vent and the cylinder cover and the air filter system connecting tube assembled, the detection system of the conductive circuit mechanism is detected to detect the crankcase ventilation tube for diagnostic crankcase vent. Tube Whether the road is disconnected from the cylinder cover and the air filter system. This system needs to be turned on before the crankcase venting or air filter system is connected and the crankcase ventilation tube is detected, and it is determined whether it is connected, but after the engine is used, the crankcase venting air tube, detection The aging of the circuit and the connector can result in the disconnection of the detection circui...

AI Technical Summary

Problems solved by technology

This system needs to conduct and test the crankcase ventilation pipe before connecting the crankcase ventilation pipe with the cylinder cover or the air filter system to determine whether it is connected. The aging of the circuit and connectors will lead to the disconnection of the detection circuit, and in the case of the normal connection of the crankcase ventilation pipe, it will generate a false alarm, which will affect the accuracy of the detection results, and there is room for improvement.

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