Vehicle Breath-Check Bypass Control for Emergency Engine Start
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Solution Overview
Problem
Conventional drunk driving prevention systems primarily focus on checking the intoxication state of drivers, but they fail to address emergencies or system malfunctions, potentially leading to accidents when they block driving operations.
Innovation Solution
A drunk driving prevention system with a bypass mode that includes a sensor module for measuring alcohol content, a control module to check the intoxication state and allow temporary driving in emergencies or system malfunctions, and features like alarm warnings and data recording to ensure safety and prevent abuse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drunk driving prevention system blocks engine start when intoxication is detected, then drunk driving prevention is improved, but emergency response capability deteriorates
Solution Approach 1:
The system dynamically switches between normal operation mode and bypass mode based on real-time conditions. The bypass control unit activates the bypass mode when emergency conditions are detected, allowing temporary engine start despite intoxication detection, thereby resolving the contradiction between prevention reliability and emergency adaptability
Solution Approach 2:
The system changes the operational parameters of the engine start control based on the detected condition. In normal mode, the parameter is 'block engine start' when alcohol content exceeds threshold. In bypass mode, the parameter temporarily changes to 'allow engine start' for emergency situations, balancing prevention and emergency response needs
2Reliability
If the drunk driving prevention system blocks driving operations, then drunk driving accidents are prevented, but system malfunction impact worsens
Solution Approach 1:
The bypass control unit acts as an intermediary between the alcohol detection result and the engine start control. When system malfunction is detected, this intermediary activates the bypass mode, allowing the engine to start despite the blocked driving operations, thereby resolving the contradiction between accident prevention and ease of operation during malfunctions
3Adaptability or versatility
If the system allows temporary driving in bypass mode, then emergency mobility is improved, but risk of drunk driving abuse increases
Solution Approach 1:
The system implements periodic monitoring even in bypass mode, with the alcohol detection device continuously checking alcohol content. The bypass mode is designed as a temporary state with time limits and requires periodic re-verification, reducing the risk of abuse while maintaining emergency mobility capability
Solution Approach 2:
The system provides continuous feedback through the alcohol detection device and control unit, monitoring alcohol content levels even in bypass mode. This feedback mechanism allows the system to detect and respond to attempts at abuse, balancing emergency mobility with prevention of drunk driving misuse
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
The system allows safe temporary driving in emergencies while preventing drunk driving-related accidents by enabling vehicle operation when necessary, with features like alarm warnings and data recording to prevent misuse and ensure legal compliance.
Implementation Method 1
a sensor module for measuring an alcohol content in exhaled breath of the driver
Data Source
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AI summary
Disclosed are a drunk driving prevention system and a drunk driving prevention method using the system that includes a sensor module measuring the alcohol content in exhaled breath of a driver at the time of breath-checking of the driver and a control module configured to check an intoxication state of the driver based on the alcohol content measured by the sensor module to determine whether or not a breath-checking is complete and block an engine start when the breath-checking fails, wherein the control module includes a bypass control unit switching a vehicle into a drivable state when the breath-checking fails.