KR20000074227A - DTE indication method of trip computer in a vehicle - Google Patents

DTE indication method of trip computer in a vehicle Download PDF

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Publication number
KR20000074227A
KR20000074227A KR1019990018008A KR19990018008A KR20000074227A KR 20000074227 A KR20000074227 A KR 20000074227A KR 1019990018008 A KR1019990018008 A KR 1019990018008A KR 19990018008 A KR19990018008 A KR 19990018008A KR 20000074227 A KR20000074227 A KR 20000074227A
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South Korea
Prior art keywords
fuel
vehicle
distance
engine
seconds
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KR1019990018008A
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Korean (ko)
Inventor
김병훈
박찬홍
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김영환
현대전자산업 주식회사
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Priority to KR1019990018008A priority Critical patent/KR20000074227A/en
Publication of KR20000074227A publication Critical patent/KR20000074227A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F9/00—Measuring volume flow relative to another variable, e.g. of liquid fuel for an engine
    • G01F9/02—Measuring volume flow relative to another variable, e.g. of liquid fuel for an engine wherein the other variable is the speed of a vehicle
    • G01F9/023—Measuring volume flow relative to another variable, e.g. of liquid fuel for an engine wherein the other variable is the speed of a vehicle with electric, electro-mechanic or electronic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
    • B60R16/0236—Circuits relating to the driving or the functioning of the vehicle for economical driving
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
    • G01F25/20—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/84—Data processing systems or methods, management, administration

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Measuring Volume Flow (AREA)

Abstract

PURPOSE: A method for displaying a distance to empty of a trip computer in a vehicle is provided to precisely compute and display a distance to empty by an average of a fuel sensor in a short time and reduce a distance error due to a sudden start or a sudden braking. CONSTITUTION: A method for displaying a distance to empty of a trip computer in a vehicle includes the steps of determining whether the vehicle is stopped or travelling according to an output signal of a vehicle velocity sensor(S1), trying to start the vehicle by an engine start if the vehicle is stopped while determining whether the vehicle is started suddenly(S2), computing a current fuel amount and a distance to empty to display the computed distance to empty in case of the sudden start(S3,S4), computing a distance to empty on the basis of a fuel amount until 8 seconds from the engine starting to display the computed distance to empty in the other case(S5), and computing a distance to empty by multiplying a fuel ratio to a value deducted fuel injected amount from a current fuel amount to display the distance if the vehicle is travelling(S6).

Description

차량내 트립 컴퓨터의 주행가능거리 표시방법 {DTE indication method of trip computer in a vehicle}DTE indication method of trip computer in a vehicle}

본 발명은 엔진 시동후 출발시까지의 소요되는 시간이 1초 이상이라고 할 경우 엔진 시동후 8초 이내로 급출발시 그때까지의 연료 센서(Fuel Sensor)의 평균을 취해 주행가능거리를 계산하여 표시하고, 엔진 시동후 8초 이후 출발시 8초까지의 연료 센서의 평균을 취해 주행가능거리를 계산하여 표시할 수 있도록 한 차량내 트립 컴퓨터(Trip Computer)의 주행가능거리(Distance To Empty ; DTE) 표시방법에 관한 것이다.According to the present invention, if the time required for the start of the engine after the start is 1 second or more, the average of the fuel sensor until the rapid start within 8 seconds after starting the engine is calculated and displayed, and the driving distance is calculated. How to display the distance to empty (DTE) of the trip computer in the vehicle that calculates and displays the travelable distance by taking the average of the fuel sensors up to 8 seconds after starting the engine after 8 seconds It is about.

종래의 차량내 트립 컴퓨터에서 현재 차량의 연료로 주행할 수 있는 주행가능거리를 계산하여 표시하는 방법은, 주유한 상태에서 엔진 시동후 연료 탱크의 흔들림이 없는 일정 시간 이후까지의 연료 센서의 값을 읽어 평균을 취한 다음 주행가능거리를 계산하여 표시하였다.In the conventional in-vehicle trip computer, a method of calculating and displaying the driving distance that can be driven by the fuel of the current vehicle is based on the value of the fuel sensor until a certain time after the start of the engine, without shaking the fuel tank. The average of the readings was taken, and the driving distance was calculated and displayed.

그러나, 상기와 같은 종래의 주행가능거리 표시방법은, 연료 센서의 값을 읽는 시간이 약 20초로 길기 때문에 엔진 시동후 주행가능거리 표시까지 많은 시간이 소요될 뿐만 아니라, 급출발이나 급제동으로 인하여 연료 센서의 값을 읽는 동안 연료 탱크가 흔들리게 되는 경우 이 연료 탱크의 유동까지 합산하여 평균을 취해 주행가능거리를 계산하게 되므로 계산시 많은 오차가 발생하게 되고, 차량의 기울어짐 역시 주행가능거리 계산에 있어 상당한 거리 오차를 초래하게 되는 문제점이 있었다.However, in the conventional method of displaying the range of driving distance as described above, since the time to read the value of the fuel sensor is about 20 seconds, not only does it take much time to display the range of driving distance after starting the engine, but also because of the rapid start or sudden braking of the fuel sensor. If the fuel tank is shaking while reading the value, the flow of this fuel tank is summed and averaged to calculate the mileage. There was a problem that causes a distance error.

본 발명은 상기와 같은 문제점을 해결하기 위해 안출한 것으로서, 그 목적은 엔진 시동후 출발시까지의 소요되는 시간이 1초 이상이라고 할 경우 엔진 시동후 8초 이내로 급출발시 그때까지의 연료 센서의 평균을 취해 주행가능거리를 계산하여 표시하고, 엔진 시동후 8초 이후 출발시 8초까지의 연료 센서의 평균을 취해 주행가능거리를 계산하여 표시함으로써 주행가능거리를 보다 정밀하게 계산하여 표시할 수 있도록 한 차량내 트립 컴퓨터의 주행가능거리 표시방법을 제공하는 데에 있다.The present invention has been made to solve the above problems, the object is that the average time of the fuel sensor up to 8 seconds after starting the engine, if the time required from start to start after engine start more than 1 second Calculate and display the driving distance, and calculate and display the driving distance by taking the average of the fuel sensors from 8 seconds after starting the engine to 8 seconds after starting, so that the driving distance can be calculated more precisely and displayed. An object of the present invention is to provide a method of displaying a driving distance of a trip computer in a vehicle.

도 1은 본 발명에 의한 차량내 트립 컴퓨터의 주행가능거리 표시방법이 적용되는 블록 구성도,1 is a block diagram to which a driving distance display method of an in-vehicle trip computer according to the present invention is applied;

도 2는 본 발명에 의한 차량내 트립 컴퓨터의 주행가능거리 표시방법을 보인 동작 흐름도.2 is a flowchart illustrating a method for displaying a driving distance of an in-vehicle trip computer according to the present invention;

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10 : 트립 컴퓨터11 : 마이컴10: trip computer 11: micom

12 : LCD 구동부 13 : 스위치 인터페이스부12 LCD driver 13 switch interface unit

20 : 표시장치30 : 모드 및 리셋 스위치20: display device 30: mode and reset switch

이러한 목적을 달성하기 위한 본 발명의 차량내 트립 컴퓨터의 주행가능거리 표시방법은, 차량이 정차중인 상태에서 엔진 시동에 따른 출발이 있는 경우, 엔진 시동후 8초 이내의 급출발인 경우에는 해당하는 시간까지의 연료량을 누적 평균하여 이를 현재의 연료량으로 계산한 후, 주행가능거리를 계산하여 디스플레이하고, 엔진 시동후 8초 이후의 출발인 경우에는 8초까지의 연료량을 누적 평균하여 이를 현재의 연료량으로 계산한 후, 주행가능거리를 계산하여 디스플레이하며, 차량이 주행중인 경우 현재의 연료량에서 연료 소모량을 뺀 후 연비를 곱하여 주행가능거리를 계산하고, 이 계산된 주행가능거리를 디스플레이하도록 함을 특징으로 한다.In order to achieve the above object, the driving distance display method of the in-vehicle trip computer according to the present invention is a time corresponding to the start of the engine within 8 seconds after the engine is started when the vehicle is started while the vehicle is stopped. Cumulative average of the amount of fuel up to calculate the current amount of fuel, and then calculate and display the driving distance, if the start after 8 seconds after starting the engine cumulative average of the amount of fuel up to 8 seconds to the current amount of fuel After calculating, the driving distance is calculated and displayed, and when the vehicle is running, the fuel consumption is subtracted from the current fuel quantity, and then the fuel consumption is calculated by multiplying the fuel consumption, and the calculated driving distance is displayed. do.

이하, 첨부된 도면을 참고하여 본 발명에 의한 차량내 트립 컴퓨터의 주행가능거리 표시방법을 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail the driving distance display method of the in-vehicle trip computer according to the present invention.

도 1은 본 발명에 의한 차량내 트립 컴퓨터의 주행가능거리 표시방법이 적용되는 블록 구성도로서, 제너레이터에서 출력되는 점화(Ignition) 전압과, 연료 센서에서 출력되는 연료량과, 차속 센서에서 출력되는 차량 속도, 연료 분사 장치(Injector)에서 출력되는 연료 소모량을 입력하여 차량의 주행거리, 평균속도, 주행시간, 주행가능거리를 계산하는 마이컴(Micom)(11)과 상기 마이컴(11)에서 계산된 결과들을 출력하도록 표시장치를 동작시키는 LCD 구동부(12)와 상기 마이컴(11)의 동작 모드 및 초기화를 결정하는 스위치 인터페이스부(13)로 이루어진 트립 컴퓨터(10)와, 상기 트립 컴퓨터(10)내 LCD 구동부(12)의 동작에 따라 상기 마이컴(11)에서 계산된 결과들을 디스플레이하는 표시장치(20)와, 상기 마이컴(11)의 동작 모드와 초기화를 결정하여 상기 트립 컴퓨터(10)내 스위치 인터페이스부(13)로 출력하는 모드 및 리셋 스위치(30)로 구성된다.FIG. 1 is a block diagram illustrating a driving distance display method of an in-vehicle trip computer according to an embodiment of the present invention, wherein an ignition voltage output from a generator, an amount of fuel output from a fuel sensor, and a vehicle output from a vehicle speed sensor are shown in FIG. Micom 11 and the results calculated by the microcomputer 11 that calculate the driving distance, average speed, driving time, and driving distance of the vehicle by inputting the speed and fuel consumption output from the fuel injector. A trip computer 10 comprising an LCD driver 12 for operating a display device to output a display device, a switch interface 13 for determining an operation mode and initialization of the microcomputer 11, and an LCD in the trip computer 10; The display device 20 displaying the results calculated by the microcomputer 11 according to the operation of the driver 12 and the operation mode and the initialization of the microcomputer 11 to determine the trip computer 10. It is composed of a mode and a reset switch 30 output to the switch interface unit (13).

상기와 같이 트립 컴퓨터(10)내 마이컴(11)은 차속 센서를 통해 차량의 주행거리, 평균차속을 계산할 수 있으며, 연료 분사 장치를 통해 엔진의 연료 분사량 및 연료 소모량을 계산할 수 있다.As described above, the microcomputer 11 in the trip computer 10 may calculate the driving distance and the average vehicle speed of the vehicle through the vehicle speed sensor, and calculate the fuel injection amount and the fuel consumption amount of the engine through the fuel injection device.

그리고, 가변 저항으로 구성되는 상기 연료 센서는 차량의 제너레이터에서 출력되는 점화 전압을 분배하여 상기 마이컴(11)으로 출력하고, 이에 따라 마이컴(11)에서는 A/D 컨버터를 사용하여 디지털 값으로 연료의 양을 계산하게 된다.The fuel sensor configured as a variable resistor distributes the ignition voltage output from the generator of the vehicle and outputs the ignition voltage to the microcomputer 11. Accordingly, the microcomputer 11 uses the A / D converter to convert the fuel into a digital value. Calculate the amount.

한편, 상기 점화 전압은 차량의 부하, 즉 에어컨(Aircon), 전조등, 액츄에이터(Actuator) 동작, 시트 히터(Seat Heater) 등과 같은 높은 부하를 받게 되면 흔들리게 되어 마이컴(11)에서 읽혀지는 전압 역시 같은 연료량이지만 전압이 다르게 읽혀지게 된다.On the other hand, the ignition voltage is shaken when the load of the vehicle, that is, the air conditioner (aircon), headlights, actuator (operator), seat heater (Seat Heater), and the like, the voltage read from the microcomputer 11 is also the same The amount of fuel, but the voltage is read differently.

따라서, 본 발명에서는 상기와 같은 오차를 줄이기 위해 마이컴(11)에서 연료 센서의 전압을 읽을 경우 점화 전압을 동시에 읽어 아래 수학식 1과 같이 보상하도록 한다.Therefore, in the present invention, when the voltage of the fuel sensor is read by the microcomputer 11 to reduce the error as described above, the ignition voltage is read at the same time so as to be compensated as in Equation 1 below.

보상된 연료 센서 전압 = 기준전압(13.5V) / 점화 전압 * 연료 센서 전압Compensated fuel sensor voltage = reference voltage (13.5V) / ignition voltage * fuel sensor voltage

예를 들어, 점화 전압이 12.5V일 때 연료 센서의 전압이 3V로 측정되면, 상기 수학식 1을 통해 보상된 연료 센서 전압은 기준전압(13.5V) / 12.5V * 3V로 3.24V가 된다.For example, if the fuel sensor voltage is measured at 3V when the ignition voltage is 12.5V, the fuel sensor voltage compensated by Equation 1 becomes 3.24V at a reference voltage (13.5V) /12.5V*3V.

즉, 연료 센서에서 읽은 전압은 3V였지만 보상을 하여 읽어 보면 3.24V로, 실제 차량에서 0.24V의 차이를 갖게 되면 연료 10ℓ이상의 오차를 발생하게 된다.In other words, the voltage read from the fuel sensor was 3V, but when compensated and read, it is 3.24V. If the difference is 0.24V in the actual vehicle, an error of 10 l or more of fuel is generated.

상기와 같은 구성에서 이루어지는 본 발명에 의한 차량내 트립 컴퓨터의 주행가능거리 표시방법을 도 2의 흐름도를 참조하여 설명하면 다음과 같다.The driving distance display method of the in-vehicle trip computer according to the present invention having the above configuration will be described with reference to the flowchart of FIG. 2.

본 발명에서 주행가능거리를 보다 정밀하게 계산하기 위해 여러 시험을 거친 결과, 엔진 시동후 출발시까지의 소요되는 시간은 운전자에 따라 1초 이상의 시간이 필요하다라는 결론을 얻을 수 있었다.As a result of various tests in order to calculate the driving range more precisely in the present invention, it was concluded that the time required from the start of the engine to the start is more than 1 second depending on the driver.

이에 따라, 도 2의 흐름도에서와 같이 엔진 시동후 주행가능거리 계산 및 표시가 신속하게 이루어짐을 알 수 있다.Accordingly, as shown in the flowchart of FIG. 2, it can be seen that the driving distance calculation and display are performed quickly after starting the engine.

즉, 먼저 상기 트립 컴퓨터(10)내 마이컴(11)에서는 차속 센서의 출력신호를 통해 현재 차량이 정차중인지 아니면 주행중인지를 판단하고(S1), 이때 차량이 정차중이라면 엔진을 시동하여 출발하도록 한다(S2).That is, first, the microcomputer 11 in the trip computer 10 determines whether the vehicle is currently stopped or driven by the output signal of the vehicle speed sensor (S1), and if the vehicle is stopped, the engine is started to start. (S2).

이어, 상기 단계(S2)의 엔진 시동에 따른 출발에 있어서, 엔진 시동후 8초 이내로 급출발하는 경우인지를 확인한다(S3).Subsequently, in the start according to the engine start of the step (S2), it is checked whether or not the rapid start and departure within 8 seconds after the engine start (S3).

상기 단계(S3)에서 엔진 시동후 8초 이내의 급출발인 경우에는 해당하는 시간(초)까지의 연료 센서에서 출력되는 연료량을 누적 평균하여 이를 현재의 연료량으로 계산한 후, 아래 수학식 2를 통해 주행가능거리를 계산하고, 이 계산된 주행가능거리를 표시장치(20)를 통해 디스플레이하도록 한다(S4).In the case of the rapid start within 8 seconds after starting the engine in the step (S3), the cumulative average of the amount of fuel output from the fuel sensor up to the corresponding time (seconds) is calculated as the current amount of fuel, and through the following equation (2) The driving distance is calculated and the calculated driving distance is displayed on the display device 20 (S4).

주행가능거리 = 정차시 현재 연료량 * 연비(연료 소모량 = 0)Driving distance = current fuel amount when stopped * fuel consumption (fuel consumption = 0)

상기 단계(S3)에서 엔진 시동후 8초 이내의 급출발이 아니고 8초 이후의 출발인 경우에는 8초까지의 연료 센서에서 출력되는 연료량을 누적 평균하여 이를 현재의 연료량으로 계산한 후, 상기 수학식 2를 통해 주행가능거리를 계산하고, 이 계산된 주행가능거리를 표시장치(20)를 통해 디스플레이하도록 한다(S5).In the step (S3), if the start of the engine is not started within 8 seconds, but starting after 8 seconds, the fuel amount output from the fuel sensor up to 8 seconds is cumulatively averaged and calculated as the current fuel amount, The driving distance is calculated through 2, and the calculated driving distance is displayed on the display device 20 (S5).

한편, 상기 단계(S1)에서 차량이 주행중이라면 연료 센서에서 출력되는 현재의 연료량에서 연료 분사 장치를 통해 분사한 연료 소모량을 뺀 값이 현재 차량의 연료 잔량이므로, 아래 수학식 3을 통해 주행가능거리를 계산하고, 이 계산된 주행가능거리를 표시장치(20)를 통해 디스플레이하도록 한다(S6).On the other hand, if the vehicle is running in the step (S1), since the value of the current fuel output from the fuel sensor minus the fuel consumption injected through the fuel injection device is the current fuel residual amount of the vehicle, the driving distance through the equation (3) below Calculate and display the calculated travelable distance through the display device 20 (S6).

주행가능거리 = (주행시 현재 연료량 - 연료 소모량) * 연비Driving distance = (current fuel amount when driving-fuel consumption) * fuel economy

상기와 같은 동작을 통해 엔진 온/오프(On/Off)에 상관없이 연료 주입후 급출발로 인한 오차를 줄일 수 있게 된다.Through the operation as described above, it is possible to reduce the error due to sudden start after the fuel injection regardless of the engine on / off (On / Off).

이상, 상기 설명에서와 같이 본 발명은 엔진 시동후 출발시까지의 소요되는 시간이 1초 이상이라고 할 경우 엔진 시동후 8초 이내로 급출발시 그때까지의 연료 센서의 평균을 취해 주행가능거리를 계산하여 표시하고, 엔진 시동후 8초 이후 출발시 8초까지의 연료 센서의 평균을 취해 주행가능거리를 계산하여 표시함으로써 엔진 시동후 주행가능거리 표시까지 많은 시간이 소요될 필요없이 주행가능거리를 보다 정밀하게 계산하여 표시할 수 있을 뿐만 아니라, 급출발이나 급제동으로 인한 거리 오차를 줄일 수 있게 되는 효과가 있다.As described above, in the present invention, when the time required for starting after starting the engine is 1 second or more, the average distance of the fuel sensor up to 8 seconds after starting the engine is calculated by taking the average of the available driving distance. Display and calculate the running distance by taking the average of the fuel sensors from 8 seconds after starting the engine to 8 seconds when starting the engine, so that the running distance can be precisely measured without requiring much time to display the driving distance after starting the engine. In addition to calculating and displaying, there is an effect that can reduce the distance error caused by sudden start or sudden braking.

Claims (2)

차량의 트립 컴퓨터(10)내 마이컴(11)에서 차속 센서의 출력신호를 통해 현재 차량이 정차중인지 아니면 주행중인지를 판단하는 제1단계와, 상기 제1단계에서 차량이 정차중이라면 엔진 시동에 따른 출발을 시도하고, 이 출발이 엔진 시동후 8초 이내로 급출발하는 경우인지 아니면 엔진 시동후 8초 이후로 출발하는 경우인지를 판단하는 제2단계와, 상기 제2단계에서 엔진 시동후 8초 이내의 급출발인 경우라면 해당하는 시간(초)까지의 연료 센서에서 출력되는 연료량을 누적 평균하여 이를 현재의 연료량으로 계산한 후, 수식을 통해 주행가능거리를 계산하고, 이 계산된 주행가능거리를 표시장치(20)를 통해 디스플레이하는 제3단계와, 상기 제2단계에서 엔진 시동후 8초 이후의 출발인 경우라면 8초까지의 연료 센서에서 출력되는 연료량을 누적 평균하여 이를 현재의 연료량으로 계산한 후, 수식을 통해 주행가능거리를 계산하고, 이 계산된 주행가능거리를 표시장치(20)를 통해 디스플레이하는 제4단계와, 상기 제2단계에서 차량이 주행중이라면 연료 센서에서 출력되는 현재의 연료량에서 연료 분사 장치를 통해 분사한 연료 소모량을 뺀 값에 연비를 곱하여 주행가능거리를 계산하고, 이 계산된 주행가능거리를 표시장치(20)를 통해 디스플레이하는 제5단계로 이루어짐을 특징으로 하는 차량내 트립 컴퓨터의 주행가능거리 표시방법.A first step of determining whether the vehicle is currently stopped or driven by the output signal of the vehicle speed sensor by the microcomputer 11 in the trip computer 10 of the vehicle; and if the vehicle is stopped in the first step, A second step of determining whether the start is to be started or started within 8 seconds after starting the engine or 8 seconds after starting the engine; and within 8 seconds after starting the engine in the second step. In the case of a quick start, the cumulative average of the amount of fuel output from the fuel sensor up to the corresponding time (seconds) is calculated and calculated as the current amount of fuel, and then the driving distance is calculated through a formula, and the calculated driving distance is displayed. In the third step of displaying through 20 and in the second step, if the start of the engine is 8 seconds after starting the engine, the cumulative average amount of fuel output from the fuel sensor up to 8 seconds After calculating this to the current amount of fuel, calculate the driving distance through the formula, and displays the calculated driving distance via the display device 20, and if the vehicle is running in the second step the fuel A fifth step of calculating a driving distance by multiplying a fuel consumption by a value obtained by subtracting fuel consumption injected through a fuel injection device from a current fuel output from the sensor, and displaying the calculated driving distance on the display device 20; Method for displaying the traveling distance of the in-vehicle trip computer, characterized in that consisting of. 제1항에 있어서, 상기 마이컴(11)에서 연료 센서의 전압을 읽을 경우 점화 전압을 동시에 읽은 후 아래 수학식을 통해 차량의 부하로 인한 연료 센서의 전압을 보상하도록 함을 특징으로 하는 차량내 트립 컴퓨터의 주행가능거리 표시방법.The in-vehicle trip according to claim 1, wherein when the microcomputer 11 reads the voltage of the fuel sensor, the ignition voltage is simultaneously read and the voltage of the fuel sensor due to the load of the vehicle is compensated by the following equation. How to display the distance of your computer. 보상된 연료 센서 전압 = 기준전압(13.5V) / 점화 전압 * 연료 센서 전압Compensated fuel sensor voltage = reference voltage (13.5V) / ignition voltage * fuel sensor voltage
KR1019990018008A 1999-05-19 1999-05-19 DTE indication method of trip computer in a vehicle KR20000074227A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030089897A (en) * 2002-05-20 2003-11-28 현대자동차주식회사 Trip apparatus of vehicle and controlling method thereof
US9759577B2 (en) 2011-10-08 2017-09-12 James R. Stabile Energy resource geographical overlay

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030089897A (en) * 2002-05-20 2003-11-28 현대자동차주식회사 Trip apparatus of vehicle and controlling method thereof
US9759577B2 (en) 2011-10-08 2017-09-12 James R. Stabile Energy resource geographical overlay

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