KR970020588A

KR970020588A - Fuel level device by ultrasonic sensor

Info

Publication number: KR970020588A
Application number: KR1019950035884A
Authority: KR
Inventors: 박영식
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1995-10-18
Filing date: 1995-10-18
Publication date: 1997-05-28

Abstract

본 발명은 차량의 연료탱크에 초음파 센서를 장착하여 연료의 레벨을 표시하거나, 경고등과 함께 주유해야할 거리를 표시하는 기능을 수행하게 되는 초음파 센서에 의한 연료레벨장치에 관한 것이다.The present invention relates to a fuel level device by an ultrasonic sensor which is equipped with an ultrasonic sensor in a fuel tank of a vehicle to display a level of fuel or a distance to be oiled together with a warning light.

그 장치는 연료탱크의 소정의 위치에 부착되어 초음파를 송출하고 반사파를 수신하는 초음파센서; 연료량이 설정치 이하로 되면 경고등 작동과 함께 표시되는 주유거리 표시기; 그리고 초음파 센서의 입력을 받아 설정된 조건하에 주유거리 표시기 및 경고등을 구동시키는 알고리즘을 수행하는 마이컴 회로장치를 구비한다. 이때, 초음파 센서는 연료탱크의 상부판에 장착하는 방법과 연료탱크의 하부판에 장착하는 방법이 모두 가능하고, 주유거리 표시기는 현재의 연료량으로 주행가능한 거리를 숫자로 표시하는 방법과 아날로그 신호에 의해 해당 거리를 지시하는 방법이 모두 가능하다.The apparatus includes an ultrasonic sensor attached to a predetermined position of the fuel tank for transmitting ultrasonic waves and receiving reflected waves; A fueling distance indicator which is displayed together with a warning light when the fuel amount is lower than a set value; And a microcomputer circuit device configured to receive an input of an ultrasonic sensor and perform an algorithm for driving a fueling distance indicator and a warning lamp under a set condition. At this time, the ultrasonic sensor can be mounted on the upper plate of the fuel tank and the method of mounting on the lower plate of the fuel tank, and the fueling distance indicator can display the distance that can be driven by the current amount of fuel by the number and the analog signal All means of indicating the distance are possible.

따라서, 비접촉식이면서 선형적인 출력 특성을 갖는 초음파 센서의 입력에 의해 연료 레벨을 표시하고, 연료레벨 저하시 경고와 함께 주행가능거리를 표시함으로써, 운전자에게 연료 상태에 대한 신뢰성 있는 데이터를 제공하여 차량운행을 편리하게 하는데 효과가 있다.Therefore, the fuel level is displayed by the input of an ultrasonic sensor having a non-contact and linear output characteristic, and the driving distance is displayed along with a warning when the fuel level is lowered, thereby providing the driver with reliable data on the fuel condition. It is effective to make it convenient.

Description

Fuel level device by ultrasonic sensor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 초음파 센서의 장착 상태를 나타내는 연료탱크의 단면도,2 is a cross-sectional view of the fuel tank showing the mounting state of the ultrasonic sensor,

제3도는 본 발명의 알고리즘 수행을 위한 마이컴 회로장치의 입출력을 나타내는 배선도,3 is a wiring diagram showing input and output of a microcomputer circuit device for performing the algorithm of the present invention;

제4도는 초음파 송수신 타이밍을 나타내는 그래프,4 is a graph showing the timing of ultrasound transmission and reception;

제5도는 본 발명에 대한 알고리즘의 일실시예를 나타내는 동작 흐름도.5 is an operational flow diagram illustrating one embodiment of an algorithm for the present invention.

Claims

An apparatus for displaying and warning a fuel amount, the apparatus comprising: an ultrasonic sensor attached to a predetermined position of a fuel tank to send ultrasonic waves and receive reflected waves; A fueling distance indicator which is displayed together with a warning light when the fuel level is lower than a set value; And a microcomputer circuit device configured to receive an input of the ultrasonic sensor and perform an algorithm for driving a fueling distance indicator and a warning lamp under a set condition.

The fuel level device according to claim 1, wherein the ultrasonic sensor is mounted on the upper plate of the fuel tank and measures the distance to the fuel liquid surface on the upper plate.

The fuel level device of claim 1, wherein the ultrasonic sensor is mounted on the lower plate of the fuel tank to measure a distance from the lower plate to the fuel liquid level.

The fuel level device according to claim 1, wherein the fueling distance indicator displays the distance that can be driven by the current fuel amount by a digital signal of the microcomputer circuit device.

The fuel level device according to claim 1, wherein the fueling distance indicator indicates the corresponding distance by the analog signal of the microcomputer circuit device for the distance that can be traveled with the current fuel amount.

※ Note: The disclosure is based on the initial application.