Crankcase Pipeline Continuity Detection via ECU Conductive Loop
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Solution Overview
Problem
The crankcase pipeline system in automobiles is prone to disconnections and breaks due to engine vibration, temperature changes, and material aging, leading to potential engine damage and emissions issues, necessitating a reliable detection method.
Innovation Solution
A pipeline detection device and method that forms a conductive loop between a detection circuit and the ECU unit, using a conductive structure at the connection terminal to monitor the integrity of the pipeline system, with voltage reduction devices to diagnose normal operation, short circuits, and abnormalities such as pipeline breaks or connector disconnections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a crankcase pipeline system is used to extract blow-by gas, then engine oil performance is maintained and emissions are reduced, but the pipeline may become disconnected or broken due to vibration and aging
Solution Approach 1:
The patent applies preliminary action by integrating a detection circuit into the pipeline system before disconnection or breakage occurs. The conductive structure is pre-installed within the pipeline, and the detection circuit continuously monitors its integrity, enabling early detection of abnormalities before they lead to system failure.
Solution Approach 2:
The patent implements feedback by using the detection circuit to continuously monitor the conductive structure's resistance or continuity. When the ECU receives abnormal signals indicating pipeline disconnection or breakage, it can trigger alerts or take corrective actions, creating a closed-loop monitoring system that provides real-time feedback on pipeline integrity.
2Measurement precision
If traditional pipeline monitoring methods are used, then system complexity is low, but detection precision and response time are insufficient
Solution Approach 1:
The patent applies universality by designing a detection circuit that can serve multiple functions: it monitors pipeline integrity, detects disconnections, identifies breakages, and provides diagnostic information to the ECU. The same conductive structure serves both as an electrical conductor and as a sensing element, reducing the need for separate monitoring components.
Solution Approach 2:
The patent uses the conductive structure as an intermediary element that bridges the pipeline system and the detection circuit. This intermediary allows the detection circuit to monitor pipeline integrity without requiring direct physical access to the pipeline interior or complex external sensing mechanisms, simplifying the overall system while improving detection capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables quick detection of pipeline abnormalities, preventing engine damage and emissions issues by ensuring the crankcase pipeline system's integrity is maintained, thus extending engine oil life and reducing wear and corrosion.
Implementation Method 1
a conductive structure provided at the connection terminal, the conductive structure being in conducting state when the connection terminal correctly connects the main pipeline with the male connector, so that a current loop is formed between the detection circuit and the ECU unit
Data Source
AI summary
The invention provides a pipeline detection device and method, which is applicable to a pipeline system of an automobile. A main pipeline of the pipeline system is connected with a male connector via a connection terminal, and a conductive structure is provided at the connection terminal. An anode end of the detection circuit is connected with a power supply end of an ECU unit of the automobile, and a cathode end of the detection circuit is connected with a ground end of the ECU unit. In this way, when the connection terminal correctly connects the main circuit with the male connector, the conductive structure is in conducting state, so that a current loop is formed between the detection circuit and the ECU unit, and whether an abnormality occurs in the pipeline system is detected based on a voltage on the detection circuit.