The present invention relates to a device for preventing drunk driving which is arranged on a vehicle. The device for preventing drunk driving comprises: a carbon dioxide sensor which includes a sample gas inlet pipe allowing sample gas in which aerobic gas of a driver and air in a vehicle are mixed to flow thereinto and a sample gas outlet pipe to discharge sample gas flowing thereinto, and generates an electric signal in accordance with a concentration of carbon dioxide included in sample gas flowing thereinto through the sample gas inlet pipe; a suction pump which is connected to the sample gas outlet pipe of the carbon dioxide sensor, and allows sample gas to flow into the carbon dioxide sensor during operation; an exhaust pipe connected to an outlet of the suction pump; an alcohol sensor to generate an electric signal in accordance with an alcohol concentration of sample gas flowing through the exhaust pipe; and a controller to determine a drunk status based on electric signals of the carbon dioxide sensor and the alcohol sensor to control a starting device of the vehicle. According to the present invention, the device for preventing drunk driving immediately checks whether a driver is drunk within a short period of time of about three seconds when the driver gets in the vehicle to blow aerobic gas towards the device for preventing drunk driving installed on a sun visor or a steering wheel of a driver seat of the vehicle.

    본 발명은 차량에 구비되는 음주운전 방지 장치에 관한 것이다. 본 발명은 운전자의 호기 가스와 차량의 내부의 공기가 혼합된 시료가스가 유입되는 시료가스 유입관 및 유입된 시료가스가 배출되는 시료가스 유출관을 포함하며, 시료가스 유입관을 통해서 유입된 시료가스에 포함된 이산화탄소의 농도에 따른 전기신호를 발생하는 이산화탄소 센서와; 상기 이산화탄소 센서의 시료가스 유출관과 연결되며, 가동시에 상기 이산화탄소 센서의 내부로 시료가스를 유입시키는 흡입 펌프와; 상기 흡입 펌프의 출구와 연결된 배기관과; 상기 배기관에 흐르는 시료가스의 알코올 농도에 따른 전기신호를 발생하는 알코올센서와; 상기 이산화탄소 센서 및 알코올센서의 전기신호를 기준으로 음주 상태인지 여부를 판단하여 차량의 시동장치를 제어하도록 구성된 제어기를 포함한다. 본 발명에 따른 음주운전 방지 장치는 차량에 운전자가 탑승하여 차량의 운전석의 핸들이나 선바이저에 설치된 음주운전 방지 장치를 향해서 호기 가스를 불면 3초 정도의 짧은 시간안에 음주 여부가 바로 확인된다.


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    Title :

    DEVICE FOR PREVENTING DRUNK DRIVING


    Additional title:

    음주운전 방지 장치


    Contributors:
    YOO DO JOON (author) / JUNG JONG JIN (author) / KIM YONG (author) / LEE JUN NO (author)

    Publication date :

    2020-05-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    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 / F16K VALVES , Ventile / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES



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