KR20030032610A - Fuel level meter having self-diagnostic function - Google Patents

Fuel level meter having self-diagnostic function Download PDF

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Publication number
KR20030032610A
KR20030032610A KR1020010064525A KR20010064525A KR20030032610A KR 20030032610 A KR20030032610 A KR 20030032610A KR 1020010064525 A KR1020010064525 A KR 1020010064525A KR 20010064525 A KR20010064525 A KR 20010064525A KR 20030032610 A KR20030032610 A KR 20030032610A
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South Korea
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fuel
sender
gauge
microcomputer
fuel gauge
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KR1020010064525A
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Korean (ko)
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김경호
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기아자동차주식회사
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Priority to KR1020010064525A priority Critical patent/KR20030032610A/en
Publication of KR20030032610A publication Critical patent/KR20030032610A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/077—Fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/15—Failure diagnostics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D2041/224—Diagnosis of the fuel system

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  • Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Emergency Management (AREA)
  • Business, Economics & Management (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Level Indicators Using A Float (AREA)

Abstract

PURPOSE: A fuel gauge having self-diagnosing function is provided to simultaneously control the fuel gauge and a warning lamp by a microcomputer without a fuel-warning sensor and to modify a resistance input way of the fuel gauge into a voltage signal way of which operation range is fixed. CONSTITUTION: A fuel gauge(21) having self-diagnosing function is composed of a sender unit(10) having a fuel level sender(11) with the defined operation range of a float in a fuel pump and installed to the fuel pump, and a meter cluster(20) comprised with a microcomputer(23) operating the fuel gauge by the input voltage of the fuel level sender of the sender unit and operating a warning lamp(22) when the input voltage reaches below a constant value. Therefore, a fuel-warning sensor, and components and processes to install the fuel-warning sensor are unnecessary and the microcomputer detects and warns abnormal conditions generated in the sender of the fuel gauge or connected conditions.

Description

자기진단기능이 구비된 연료계 {Fuel level meter having self-diagnostic function}Fuel level meter having self-diagnostic function

본 발명은 자기진단기능이 구비된 연료계에 관한 것으로서 특히, 연료경고센서가 필요 없이, 마이컴에서 연료 게이지(gauge)와 연료 경고등(warning lamp)을 동시에 제어할 수 있도록 하고, 연료 게이지 측의 저항입력 방식을 작동범위가 정해진 전압신호 방식으로 변경함으로써, 연료경고센서 및 이를 설치하는 부품과 공정이 필요 없고, 연료계의 센더측이나 연결상태에 이상이 발생할 경우에 마이컴에서 이를 감지하여 경고할 수 있도록 하는 자기진단기능이 구비된 연료계에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel gauge equipped with a self-diagnosis function. In particular, a fuel gauge and a fuel warning lamp can be simultaneously controlled in a microcomputer without the need for a fuel warning sensor. By changing the input method to a voltage signal method with a defined operating range, the fuel warning sensor and parts and processes for installing it are not required, and when a problem occurs in the sender side or connection state of the fuel gauge, the microcomputer can detect and warn it. It relates to a fuel gauge having a self-diagnosis function.

일반적으로 연료를 이용하는 차량 등의 연료탱크에는 운전자가 연료의 잔량을 알 수 있도록 하는 연료계가 구비되어 있다.In general, fuel tanks such as vehicles using fuel are provided with a fuel gauge so that a driver can know the remaining amount of fuel.

도 1은 종래의 연료계를 나타내는 회로도이고, 도 2는 종래의 연료계의 센더부를 나타내는 사시도로서, 종래의 연료계는 연료 게이지(2), 마이컴(3), 경고등(4)이 설치된 미터 클러스터(1)와, 연료레벨센더(fuel level sender: 6)와 연료경고센서(7)가 구성되며 연료펌프(8) 측에 설치되는 센더부(5)로 구성된다.Fig. 1 is a circuit diagram showing a conventional fuel gauge, and Fig. 2 is a perspective view showing a sender portion of a conventional fuel gauge. (1), a fuel level sender (6) and a fuel warning sensor (7) are configured, and a sender (5) is provided on the fuel pump (8) side.

상기와 같은 종래의 연료계는 상기 미터 클러스터(1)의 연료 게이지(2)와 경고등(4)이 상기 센더부(5)의 뜨개(9)의 작동에 의한 연료레벨센더(6)와, 연료경고센서(7)의 각각의 입력신호에 의하여 작동이 되며, 상기 마이컴(3)에서는 연료레벨센더(6)의 상 하한값이 없는 단순 저항값을 입력받아 PWM 제어방식으로 연료의 유량을 연료 게이지(2)로 출력하도록 되어있다.In the conventional fuel gauge as described above, the fuel gauge 2 and the warning light 4 of the meter cluster 1 are operated by the operation of the knit 9 of the sender unit 5 and the fuel. Each input signal of the warning sensor 7 is operated, and the microcomputer 3 receives a simple resistance value having no upper and lower limits of the fuel level sender 6 to control the flow rate of the fuel by the PWM control method. 2) is to output.

또한, 상기 연료의 유량이 일정량 이하일 경우에는 상기 연료경고센서의 신호에 의하여 경고등이 작동하도록 구성된다.In addition, when the flow rate of the fuel is less than a predetermined amount is configured to operate a warning light by the signal of the fuel warning sensor.

그러나 상기와 같은 종래의 연료계는 연료경고센서에 의하여 경고등을 작동시키므로, 고가의 연료경고센서를 차량에 탑재해야 하므로, 이로 인한 비용상승 및 공정증가의 단점이 있다.However, the conventional fuel gauge as described above operates a warning lamp by a fuel warning sensor, and thus, an expensive fuel warning sensor must be mounted on a vehicle, thereby resulting in a cost increase and a process increase.

또한, 연료레벨센더의 신호는 연료 게이지만을 작동하도록 되어있으므로, 연료탱크의 내부에서 연료경고센서를 제거하고 연료레벨센더 만으로 연료 게이지와 경고등을 작동할 경우에는, 상기 연료레벨센더 또는 그 연결이 불량한 경우에 미터 클러스터측의 연료 게이지와 경고등이 함께 작동되지 않아, 연료가 모두 소모되어도 운전자에게 경고가 불가능한 문제점이 있었고, 더욱이 입력신호측에는 불량현상이 많아, 경고 시스템의 보완용으로 2개의 입력신호를 필요로 하는 문제점이 있었다.In addition, since the signal of the fuel level sender is configured to operate only the fuel gauge, when the fuel warning sensor is removed from the fuel tank and the fuel gauge and the warning lamp are operated only by the fuel level sender, the fuel level sender or its connection is poor. In this case, the fuel gauge and warning lamp on the side of the meter cluster do not operate together, so there is a problem that the driver cannot be warned even when the fuel is exhausted. Furthermore, there are many defects on the input signal side. There was a problem that needed.

본 발명은 상기의 결점을 해소하기 위한 것으로, 연료경고센서 및 이를 설치하는 부품과 공정이 필요 없고, 연료계의 센더측이나 연결상태에 이상이 발생할 경우에 마이컴에서 이를 감지하여 경고할 수 있도록 하는 자기진단기능이 구비된 연료계를 제공하고자 한다.The present invention is to solve the above-mentioned shortcomings, and does not require a fuel warning sensor and components and processes for installing the same, so that when a problem occurs in the sender side or the connection state of the fuel gauge so that the microcomputer can detect and warn the warning. To provide a fuel gauge equipped with a self-diagnosis function.

이러한 본 발명은 연료펌프 내의 뜨개의 작동범위가 특정된 연료레벨센더가 구성되며 연료펌프 측에 설치되는 센더부와; 상기 센더부의 연료레벨센더의 입력전압에 의하여 연료 게이지를 작동시키고, 상기 입력전압이 일정값 이하에 이르렀을 경우에 경고등을 작동시키는 마이컴으로 이루어지는 미터 클러스터로 구성함으로써 달성된다.The present invention comprises a sender unit configured to the fuel level sender specified in the operating range of the knitting in the fuel pump and installed on the fuel pump side; The fuel gauge is operated by the input voltage of the fuel level sender of the sender unit, and is constituted by a meter cluster consisting of a microcomputer that operates a warning lamp when the input voltage reaches a predetermined value or less.

도 1은 종래의 연료계를 나타내는 회로도,1 is a circuit diagram showing a conventional fuel gauge,

도 2는 종래의 연료계의 센더부를 나타내는 사시도,2 is a perspective view showing a sender of a conventional fuel system;

도 3은 본 발명의 자기진단기능이 구비된 연료계를 나타내는 회로도.3 is a circuit diagram showing a fuel system with a self-diagnosis function of the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10 : 센더부 11 : 연료레벨센더10: sender unit 11: fuel level sender

20 : 미터 클러스터 21 : 연료 게이지20: meter cluster 21: fuel gauge

22 : 경고등 23 : 마이컴22: warning light 23: micom

24 : 전원공급단24: power supply

본 발명의 실시예를 첨부 도면을 참고하여 상세히 설명하면 다음과 같다.An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명의 자기진단기능이 구비된 연료계를 나타내는 회로도로서, 본 발명은, 연료펌프 내의 뜨개(도 2 참조)의 작동범위가 특정된 연료레벨센더(11)가 구성되며 연료펌프 측에 설치되는 센더부(10)와; 상기 센더부(10)의 연료레벨센더(11)의 입력전압에 의하여 연료 게이지(21)를 작동시키고, 상기 입력전압이 일정값 이하에 이르렀을 경우에 경고등(22)을 작동시키는 마이컴(23)으로 이루어지는 미터 클러스터(20)로 구성되는 것을 그 기술상의 특징으로 한다.FIG. 3 is a circuit diagram showing a fuel gauge equipped with a self-diagnosis function of the present invention. In the present invention, a fuel level sender 11 in which an operating range of a knitting (see FIG. 2) in a fuel pump is specified is configured, and a fuel pump side is provided. Sender unit 10 is installed in; The microcomputer 23 operating the fuel gauge 21 by the input voltage of the fuel level sender 11 of the sender unit 10 and operating the warning lamp 22 when the input voltage reaches a predetermined value or less. It consists of the technical cluster which consists of the meter cluster 20 which consists of these.

즉, 마이컴(23)에 센더부(10)측의 전원공급단(24)을 추가하여 뜨개의 작동범위 값을 일정 범위(예를 들어, 1 ~ 4V)로 제한하여 연료의 잔량에 따라 연료 게이지(21)가 작동되도록 하고, 상기 뜨개에 의한 입력전압값이 어느 일정값(예를 들어 1.2V)이하에 이르렀을 경우에 경고등(22)이 작동되도록 하는 것이다.That is, by adding the power supply terminal 24 of the sender unit 10 to the microcomputer 23 to limit the operating range value of the knitting to a certain range (for example, 1 ~ 4V) fuel gauge according to the remaining amount of fuel (21) is to be activated, and the warning lamp 22 is to be activated when the input voltage value by the float reaches a certain value (for example, 1.2V) or less.

또한, 연료레벨센더(11) 측이 불량하거나 그 연결이 불량할 경우에는 그 입력신호의 전달값이 상기 작동범위 값을 벗어나게 되므로, 상기 마이컴(23)에서는 이를 감지하여 불량 상태를 진단할 수 있는 자기진단기능의 작동이 가능하다.In addition, when the fuel level sender 11 side is bad or its connection is poor, since the transmission value of the input signal is out of the operating range value, the microcomputer 23 can detect the fault and diagnose a bad state. Self-diagnosis function is possible.

이 경우에도 경고등(22)을 작동하도록 하여, 운전자에게 경고함으로써, 연료가 모두 소비되어 차량의 주행불능 상태가 되는 것을 방지하는 것이다.In this case as well, the warning lamp 22 is operated to warn the driver so that all fuel is consumed to prevent the vehicle from running.

이상과 같은 본 발명은 연료계에 있어서, 연료경고센서 및 이를 설치하는 부품과 공정이 필요 없고, 연료계의 센더측이나 연결상태에 이상이 발생할 경우에 마이컴에서 이를 감지하여 경고할 수 있도록 하는 효과가 있는 발명인 것이다.As described above, the present invention does not require a fuel warning sensor and components and processes for installing the same in a fuel system, and when an abnormality occurs in a sender side or a connection state of the fuel system, the microcomputer detects and warns the alarm. It is an invention with.

Claims (2)

연료펌프 내의 뜨개의 작동범위가 특정된 연료레벨센더가 구성되며 연료펌프 측에 설치되는 센더부와;A sender unit configured to provide a fuel level sender in which a working range of the knitting in the fuel pump is specified and installed on the fuel pump side; 상기 센더부의 연료레벨센더의 입력전압에 의하여 연료 게이지를 작동시키고, 상기 입력전압이 일정값 이하에 이르렀을 경우에 경고등을 작동시키는 마이컴으로 이루어지는 미터 클러스터로 구성되는 것을 특징으로 하는 자기진단기능이 구비된 연료계.The self-diagnostic function comprises a meter cluster comprising a microcomputer that operates a fuel gauge according to an input voltage of a fuel level sender of the sender unit, and activates a warning lamp when the input voltage reaches a predetermined value or less. Fuel gauge. 제 1항에 있어서, 상기 마이컴과 센더부의 연결은,The method of claim 1, wherein the connection between the microcomputer and the sender unit, 상기 마이컴에 센더부측의 전원공급단을 추가 연결함으로써, 뜨개의 작동범위 값을 일정 범위로 제한하여 연료의 잔량에 따라 연료 게이지가 작동되도록 함을 특징으로 하는 자기진단기능이 구비된 연료계.The fuel gauge having a self-diagnosis function characterized in that the fuel gauge is operated according to the remaining fuel by limiting the operating range value of the knitting to a predetermined range by further connecting the power supply terminal of the sender side to the microcomputer.
KR1020010064525A 2001-10-19 2001-10-19 Fuel level meter having self-diagnostic function KR20030032610A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111660807A (en) * 2019-03-06 2020-09-15 上海欧菲智能车联科技有限公司 Oil mass data processing method, processing device, medium and vehicle
CN114460910A (en) * 2021-12-31 2022-05-10 浙江中控技术股份有限公司 DCS-based analog quantity change judgment method, DCS-based analog quantity change judgment equipment and storage medium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0743190A (en) * 1993-07-26 1995-02-10 Yazaki Corp Fuel gauge with residual quantity alarming function
KR970036180A (en) * 1995-12-27 1997-07-22 한승준 A WARNING DEVICE FOR INFORMING A LACK OF FUEL
JPH10280974A (en) * 1997-04-09 1998-10-20 Nissan Motor Co Ltd Fuel level gauge for vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0743190A (en) * 1993-07-26 1995-02-10 Yazaki Corp Fuel gauge with residual quantity alarming function
KR970036180A (en) * 1995-12-27 1997-07-22 한승준 A WARNING DEVICE FOR INFORMING A LACK OF FUEL
JPH10280974A (en) * 1997-04-09 1998-10-20 Nissan Motor Co Ltd Fuel level gauge for vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111660807A (en) * 2019-03-06 2020-09-15 上海欧菲智能车联科技有限公司 Oil mass data processing method, processing device, medium and vehicle
CN114460910A (en) * 2021-12-31 2022-05-10 浙江中控技术股份有限公司 DCS-based analog quantity change judgment method, DCS-based analog quantity change judgment equipment and storage medium

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