JPS6361919A - Fuel rest meter for vehicle - Google Patents
Fuel rest meter for vehicleInfo
- Publication number
- JPS6361919A JPS6361919A JP61207475A JP20747586A JPS6361919A JP S6361919 A JPS6361919 A JP S6361919A JP 61207475 A JP61207475 A JP 61207475A JP 20747586 A JP20747586 A JP 20747586A JP S6361919 A JPS6361919 A JP S6361919A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- vehicle
- liquid level
- display
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 238000001514 detection method Methods 0.000 claims abstract description 32
- 239000002828 fuel tank Substances 0.000 claims abstract description 24
- 230000001133 acceleration Effects 0.000 claims abstract description 18
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
【発明の詳細な説明】
【産業上の利用分野１
本発明は、車両の燃料タンク内の燃料の残量を表示する
車両用燃料残量計に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention relates to a vehicle fuel gauge that displays the remaining amount of fuel in a fuel tank of a vehicle.
【従来の技術１
従来、車両に設置されている燃料残量計は、燃料タンク
内の燃料の液位を検出づる液位検出手段の電気的特性の
変化を変換して燃料の残量を表示しているが、車両の傾
斜時、加速時等には、液面が燃料タンクに対して傾いた
り、大きく揺れるため、燃料の残量を正確に表示できな
いという欠点を有する。[Conventional technology 1] Conventionally, fuel level meters installed in vehicles display the remaining amount of fuel by converting changes in the electrical characteristics of the level detection means that detects the level of fuel in the fuel tank. However, when the vehicle tilts or accelerates, the liquid level tilts with respect to the fuel tank or shakes significantly, so it has the disadvantage that it is not possible to accurately display the remaining amount of fuel.
この欠点を解消するために、１ｇの液位検出手段が検出
した多くの信号を平均化して残量表示するものがあり、
さらに改良を加えて、特公昭６０−１５６７号公報では
、停車時には平均化時間を短くして応答性を向上させ、
また、特公昭６０−４１２８８号公報では、予め設定し
たバラツキ以上の液位検出信号を予め設定したバラツキ
の上限値、下限値と置換えて平均化している。In order to solve this drawback, there is a device that averages many signals detected by a 1g liquid level detection means and displays the remaining amount.
Further improvements were made in Japanese Patent Publication No. 60-1567, which shortened the averaging time when stopped to improve responsiveness.
Further, in Japanese Patent Publication No. 60-41288, liquid level detection signals having a dispersion greater than a preset value are averaged by replacing them with preset upper and lower limits of dispersion.
他にも、特公昭５５−６８５号公報では、２個の液位検
出手段の両方が液位の低下を検出した時のみ表示器を作
動させている。In addition, in Japanese Patent Publication No. 55-685, an indicator is activated only when two liquid level detection means both detect a drop in the liquid level.
しかしながら、上記従来の車両用燃料残量計では、いず
れも燃料の残量測定に不適当な状態での液位検出信号を
含んで残量を表示しているという問題点がある。However, all of the above-mentioned conventional fuel level meters for vehicles have a problem in that they display the level of fuel by including a level detection signal in a state that is inappropriate for measuring the remaining level of fuel.
また、燃料タンクの形状によっては、液位と残量とが比
例関係にならないので、測定に大きな誤差が生じるとい
う問題点がある。Furthermore, depending on the shape of the fuel tank, the liquid level and the remaining amount may not be in a proportional relationship, resulting in a large error in measurement.
［問題点を解決する為の手段］
本発明は、上記問題点に兎みて成されたもので、車両の
状態、すなわち車両の姿勢および加速の状況を検知し、
予め設定した燃料の残量の測定に適した車両の状態と比
較判別して、測定に適した時のみ残量の表示を更新する
ように制御することにより、燃料の液面の傾斜及び揺動
の影響を殆ど受けずに残量を正確に検出して表示しうる
車両用燃料残量計を提供するものである。[Means for Solving the Problems] The present invention has been made in view of the above problems, and detects the state of the vehicle, that is, the attitude and acceleration of the vehicle,
By comparing and determining the state of the vehicle that is suitable for measuring the remaining amount of fuel set in advance, and controlling the remaining amount display to be updated only when it is suitable for measurement, the slope and fluctuation of the fuel level can be reduced. To provide a fuel level gauge for a vehicle that can accurately detect and display the remaining level with little influence from
また、燃料タンクの形状が複雑な場合には、燃料タンク
の重量を圧力センサまたは荷重センサで検出して、燃料
の残量に変換し、表示することにより、燃料タンクの形
状にかかわらず残量を正確に検出して表示しうるちので
ある。In addition, if the shape of the fuel tank is complex, the weight of the fuel tank can be detected with a pressure sensor or load sensor, converted to the remaining amount of fuel, and displayed. It is possible to accurately detect and display the information.
［実 施 例１ 以下、本発明を図面に基づいて説明する。[Implementation Example 1] Hereinafter, the present invention will be explained based on the drawings.
第１図は本発明による車両用燃料残量計の第１実施例を
示すブロック線図である。１は、液位検出手段たる静電
容量式のセンサであり、液位に対応する静電容重を有し
、この容量特性を液位検出信号発生手段２によって電気
信号に変換し、演算手段３に出力する。車両状態検知手
段としては、傾斜センサ６および加速度センサ７を燃料
タンク（図示せず）に近接して配設してあり、夫々その
測定値を制御手段５に出力する。制御手段５は、予め設
定された傾斜角および加速度の値と傾斜はンサ６および
加速度センサ７からの信号を比較し、予め設定された傾
斜角および加速度以下であれば、液位検出信号発生手段
２を駆動させる６演わ手段３は、液位検出信号発生手段
２からの信号に応じて燃料の残量を演算して表示手段４
に出力する。表示手段４は、演算手段３からの入力によ
り表示を更新する。新たな入力のない限り、表示手段４
は表示を保持する。FIG. 1 is a block diagram showing a first embodiment of a vehicle fuel level gauge according to the present invention. Reference numeral 1 denotes a capacitance type sensor serving as a liquid level detection means, which has a capacitance weight corresponding to the liquid level, and this capacitance characteristic is converted into an electric signal by a liquid level detection signal generation means 2, and a calculation means 3 Output to. As the vehicle state detection means, an inclination sensor 6 and an acceleration sensor 7 are disposed close to a fuel tank (not shown), and output their measured values to the control means 5, respectively. The control means 5 compares the preset inclination angle and acceleration values with the signals from the inclination sensor 6 and the acceleration sensor 7, and if the inclination angle and acceleration are below the preset inclination angle and acceleration, the liquid level detection signal generating means The display means 3 calculates the remaining amount of fuel according to the signal from the liquid level detection signal generation means 2 and displays the display means 4.
Output to. The display means 4 updates the display based on the input from the calculation means 3. Unless there is a new input, display means 4
retains the display.
この実施例では、液位検出手段として静電容量式センサ
１個を用いているが、液位検出手段は、液位を電気的特
性に変換できるものであれば通用できるし、センサは１
（［！Ｉに限らず、複数用いて演算手段において平均値
を算出するようにすれば、さらに正確な検出をすること
ができる。In this embodiment, one capacitive sensor is used as the liquid level detecting means, but any type of liquid level detecting means that can convert the liquid level into electrical characteristics can be used;
(Not limited to [!I), more accurate detection can be achieved by using a plurality of values and calculating the average value in the calculation means.
第２図は、本発明による車両用燃料残量計の第２実施例
を示すブロック線図である。第１実施例との相違は、車
両状態検知手段として４個の液位検出手段１ａ、１ｂ、
’ｌｃ、１ｄを用いていることである。制御手段５−は
、液位検出手段１ａ、１ｂ、１ｃ、１ｄから同時に入力
する夫々の液位に対応する電気的特性のバラツキすなわ
ち最大値と最小値との差と予め設定されたバラツキの値
とを比較し、予め設定された値以下であれば、液位検出
信号発生手段２−を駆動させる。演算手段３−は、液位
検出信号発生手段２′からの４つの信号を平均し、燃料
の残量を演算して表示手段４に出力する。表示手段４は
、演算手段３′からの入力により表示を更新する。新た
な入力のない限り、表示手段４は表示を保持する。FIG. 2 is a block diagram showing a second embodiment of the vehicle fuel level meter according to the present invention. The difference from the first embodiment is that four liquid level detection means 1a, 1b,
'lc, 1d are used. The control means 5- detects variations in electrical characteristics corresponding to the respective liquid levels input simultaneously from the liquid level detection means 1a, 1b, 1c, and 1d, that is, the difference between the maximum value and the minimum value and a preset value of the variation. If it is less than a preset value, the liquid level detection signal generating means 2- is driven. The calculation means 3- averages the four signals from the liquid level detection signal generation means 2', calculates the remaining amount of fuel, and outputs it to the display means 4. The display means 4 updates the display based on input from the calculation means 3'. The display means 4 maintains the display unless there is a new input.
この実施例では、４個の液位検出手段を車両状態検知手
段として用いたが、複数てあれば４個に限らず同様の効
果を有する。また、４個の液位検出手段からの信号を平
均し燃料の残量を演等しているが、４＠の液位検出手段
の内の１つからの信号を演算して表示することもできる
。In this embodiment, four liquid level detecting means are used as the vehicle state detecting means, but if there is a plurality of liquid level detecting means, the same effect can be obtained without being limited to four. Also, although the remaining amount of fuel is calculated by averaging the signals from the four liquid level detection means, it is also possible to calculate and display the signal from one of the four liquid level detection means. can.
第３図は、液位検出手段の代りに重量感知センサを用い
た実施例の燃料タンクへのセンサの取付は状態を示す。FIG. 3 shows how the sensor is attached to the fuel tank in an embodiment in which a weight sensor is used instead of the liquid level detecting means.
重量感知センサとしてのロードセル’１１．１２．１３
．１４は、燃料タンク１７の底部に配設され、車体１６
に燃料タンク１７を吊架する吊枠１８と燃料タンク１７
とに挟持され、夫々はぼ均等に燃料タンク１７の荷重を
支えている。１つは車体１６と燃料タンク１７とに挟持
された緩衝部材である。この場合、運算手段はロードセ
ル１１，１２，１３゜１４夫々が検出した重量を加算し
、燃料タンク１７の重量を減算して燃料２０の重量から
燃料２０の容示すなわち燃料の残量を算出する。Load cell as a weight sensor '11.12.13
．． 14 is disposed at the bottom of the fuel tank 17 and is attached to the vehicle body 16.
A suspension frame 18 for suspending the fuel tank 17 and the fuel tank 17
The fuel tank 17 is sandwiched between the fuel tank 17 and the fuel tank 17, and each supports the load of the fuel tank 17 almost equally. One is a buffer member held between the vehicle body 16 and the fuel tank 17. In this case, the calculation means adds the weights detected by each of the load cells 11, 12, 13, 14, and subtracts the weight of the fuel tank 17 to calculate the capacity of the fuel 20, that is, the remaining amount of fuel, from the weight of the fuel 20. .
重量感知センサを用いると、燃料の残量を重量から検出
するので、特に燃料タンクの形状が複雑、すなわち燃料
タンクの水平断面の形状、寸法が一様でない場合にも、
燃料の残量を正確に検出できる効果がある。When using a weight sensor, the remaining amount of fuel is detected from the weight, so even when the shape of the fuel tank is complex, that is, the shape and dimensions of the horizontal cross section of the fuel tank are not uniform.
This has the effect of accurately detecting the remaining amount of fuel.
重量感知センサとしては、実施例で用いたロードセルの
外、圧電式センサ等の各種圧力センサを用いることがで
きる。As the weight sensor, in addition to the load cell used in the embodiment, various pressure sensors such as a piezoelectric sensor can be used.
（発明の効果］
本光明による車両用燃料残量計は、車９両の燃料タンク
内の燃料の液位を検出する液位検出手段の電気的特性の
変化を変換して燃料の残量を表示手段に表示する車両用
燃料残量計であって、車両の姿勢および加速状態を検知
する車両状態検知手段と、該車両状態検知手段の出力が
予め設定した値の範囲内にある時のみ該表示手段の表示
を更新する制御手段とを備えているから、車両の状態、
すなわち車両の姿勢および加速の状況が燃料の残量の測
定に適している場合のみの液位が検出され、正確な燃料
の残量を表示することができる。(Effects of the Invention) The vehicle fuel level meter according to the present invention converts changes in the electrical characteristics of the liquid level detection means that detects the level of fuel in the fuel tanks of nine vehicles to determine the remaining amount of fuel. A fuel level meter for a vehicle that is displayed on a display means, and includes a vehicle state detection means that detects the attitude and acceleration state of the vehicle, and a vehicle state detection means that is detected only when the output of the vehicle state detection means is within a preset value range. Since it is equipped with a control means for updating the display of the display means, the state of the vehicle,
That is, the liquid level is detected only when the attitude and acceleration of the vehicle are suitable for measuring the remaining amount of fuel, making it possible to accurately display the remaining amount of fuel.
また、残量の測定に適している車両状態を予め設定する
ので、設定する値によって、表示する残量の精度の設定
が容易にできる。Further, since the vehicle condition suitable for measuring the remaining amount is set in advance, the accuracy of the remaining amount to be displayed can be easily set depending on the set value.
車両状態検知手段が、傾斜センナおよび加速度センサで
ある場合には、別の目的で車両に装備しである場合もあ
るので、特にコストを上げることなく本発明の車両用燃
料残量計を装備することができる。When the vehicle condition detection means is a tilt sensor and an acceleration sensor, the vehicle may be equipped with the vehicle for another purpose, so the vehicle fuel level gauge of the present invention can be equipped without particularly increasing costs. be able to.
車両状態検知手段が、液位検出手段の複数である場合に
は、液面の状態を直接検出しているので、残量の測定精
度が飛躍的に高い。When the vehicle state detection means includes a plurality of liquid level detection means, the state of the liquid level is directly detected, so the accuracy of measuring the remaining amount is dramatically high.
液位検出手段の代りに重量感知センサを用いた場合には
、燃料の残量を重量から検出するので、特に燃料タンク
の形状が複雑、すなわち燃料タンクの水平断面の形状、
寸法が一様でない場合にも、燃料の残量を正確に検出で
きる。When a weight sensor is used instead of the liquid level detection means, the remaining amount of fuel is detected from the weight, so the shape of the fuel tank is particularly complicated, i.e. the shape of the horizontal cross section of the fuel tank,
Even if the dimensions are not uniform, the remaining amount of fuel can be accurately detected.
第１図は本発明の第１実施例を示すブロック線図、第２
図は本発明の第２実施例を示すブロック線図、第３図は
重量感知はンサの取付は状態を示す部分断面図である。
１、１ａ、ｉｂ、’ｊｃ、ｉｄＧよ液位検出手段、４は
表示手段、５．５′は制御手段、６は傾斜センサ、７は
加速度センサ、１１．１２．１３゜１４は重量感知セン
サである。
特 許 出 願人 ジエコー株式会社
１、１ａ、１ｂ、１ｃ、１ｄ：液位検出子［２４：表示
手段
５．５−：制御手段
６ ：傾斜センサ
７ ：加速度はンリ
１１．１２．１３．１４：Ｉ聞感知レンリ第２図FIG. 1 is a block diagram showing a first embodiment of the present invention, and FIG.
The figure is a block diagram showing a second embodiment of the present invention, and FIG. 3 is a partial sectional view showing how the weight sensor is mounted. 1, 1a, ib, 'jc, idG are liquid level detection means, 4 is a display means, 5.5' is a control means, 6 is a tilt sensor, 7 is an acceleration sensor, 11, 12, 13° 14 is a weight sensor It is. Patent applicant G-Eco Co., Ltd. 1, 1a, 1b, 1c, 1d: Liquid level detector [24: Display means 5.5-: Control means 6: Inclination sensor 7: Acceleration is normal 11.12.13.14 : I-sensing Renri Figure 2
Claims (4)
検出手段の電気的特性の変化を変換して燃料の残量を表
示手段に表示する車両用燃料残量計において、 車両の姿勢および加速状態を検知する車両状態検知手段
と、 該車両状態検知手段の出力が予め設定した値の範囲内に
ある時のみ該表示手段の表示を更新する制御手段と を備えたことを特徴とする車両用燃料残量計。(1) In a fuel level meter for a vehicle that displays the remaining amount of fuel on a display means by converting changes in the electrical characteristics of a liquid level detection means that detects the level of fuel in a fuel tank of a vehicle, The present invention is characterized by comprising a vehicle state detection means for detecting the attitude and acceleration state, and a control means for updating the display of the display means only when the output of the vehicle state detection means is within a preset value range. Fuel level gauge for vehicles.
度センサであることを特徴とする特許請求の範囲第１項
記載の車両用燃料残量計。(2) The fuel level meter for a vehicle according to claim 1, wherein the vehicle condition detection means is a tilt sensor and an acceleration sensor.
段を兼ねることを特徴とする特許請求の範囲第１項記載
の車両用燃料残量計。(3) The fuel level gauge for a vehicle according to claim 1, wherein the plurality of liquid level detecting means also serve as the vehicle state detecting means.
たことを特徴とする特許請求の範囲第１項ないし第３項
のいずれかに記載の車両用燃料残量計。(4) The fuel level meter for a vehicle according to any one of claims 1 to 3, characterized in that a weight sensor is used in place of the liquid level detection means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61207475A JPS6361919A (en) | 1986-09-03 | 1986-09-03 | Fuel rest meter for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61207475A JPS6361919A (en) | 1986-09-03 | 1986-09-03 | Fuel rest meter for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6361919A true JPS6361919A (en) | 1988-03-18 |
Family
ID=16540367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61207475A Pending JPS6361919A (en) | 1986-09-03 | 1986-09-03 | Fuel rest meter for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6361919A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04131715A (en) * | 1990-09-25 | 1992-05-06 | Yazaki Corp | Level detecting system for automobile fuel |
| FR2964736A1 (en) * | 2010-09-15 | 2012-03-16 | Ijinus | Method for measuring level of e.g. fuel in fuel reservoir of lorry, involves stopping activation of ultrasonic sensor in emission mode or receiving mode when detected value of variable is in not range of determined values |
| JP2014084769A (en) * | 2012-10-23 | 2014-05-12 | Calsonic Kansei Corp | Vehicle fuel display mechanism |
| JP2015182558A (en) * | 2014-03-24 | 2015-10-22 | 本田技研工業株式会社 | Residual fuel amount detector of vehicle fuel tank |
| US11560163B2 (en) | 2018-12-19 | 2023-01-24 | Thales Canada Inc | System and method for determining grade and acceleration due to motoring and braking |
-
1986
- 1986-09-03 JP JP61207475A patent/JPS6361919A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04131715A (en) * | 1990-09-25 | 1992-05-06 | Yazaki Corp | Level detecting system for automobile fuel |
| FR2964736A1 (en) * | 2010-09-15 | 2012-03-16 | Ijinus | Method for measuring level of e.g. fuel in fuel reservoir of lorry, involves stopping activation of ultrasonic sensor in emission mode or receiving mode when detected value of variable is in not range of determined values |
| JP2014084769A (en) * | 2012-10-23 | 2014-05-12 | Calsonic Kansei Corp | Vehicle fuel display mechanism |
| JP2015182558A (en) * | 2014-03-24 | 2015-10-22 | 本田技研工業株式会社 | Residual fuel amount detector of vehicle fuel tank |
| US11560163B2 (en) | 2018-12-19 | 2023-01-24 | Thales Canada Inc | System and method for determining grade and acceleration due to motoring and braking |
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