JP2009150852A - Fuel residual amount display device - Google Patents

Fuel residual amount display device Download PDF

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JP2009150852A
JP2009150852A JP2007331240A JP2007331240A JP2009150852A JP 2009150852 A JP2009150852 A JP 2009150852A JP 2007331240 A JP2007331240 A JP 2007331240A JP 2007331240 A JP2007331240 A JP 2007331240A JP 2009150852 A JP2009150852 A JP 2009150852A
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fuel
remaining amount
amount
remaining
display device
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Satoru Shiono
悟 塩野
Mitsumasa Kondo
光正 近藤
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Nippon Seiki Co Ltd
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Nippon Seiki Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a fuel residual amount display device for informing a user of failure of a fuel detecting means. <P>SOLUTION: This fuel residual amount display device for displaying the fuel residual amount in a fuel tank mounted in a vehicle includes a displaying means 3, a fuel detecting means 1 for outputting a first detection signal according to the fuel residual amount, and a controlling means 2 that determines the fuel residual amount based on the first detection signal, makes the displaying means 3 display it, measures operating time of the internal combustion engine of the vehicle, determines that the fuel detecting means 1 fails when the variation amount of the fuel residual mount is a predetermined value or less even though the operating time has passed a predetermined time or more, and informs the user of the failure in the displaying means 3. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、車両に搭載される燃料タンク内の燃料残量を表示する燃料残量表示装置に関する。   The present invention relates to a fuel remaining amount display device that displays a fuel remaining amount in a fuel tank mounted on a vehicle.

この種の燃料残量表示装置として、例えば特許文献１に記載されたものが知られている。この燃料残量表示装置は、表示手段（表示器）と、燃料残量に応じた検出信号を出力する燃料検出手段（フューエルセンダ）と、検出信号に基づいて燃料残量を求めて表示手段に表示させる制御手段（マイクロコンピュータ）とを備えている。
特開平１０−２３９１３３号公報 As this type of fuel remaining amount display device, for example, a device described in Patent Document 1 is known. This fuel remaining amount display device includes a display means (indicator), a fuel detection means (fuel sender) that outputs a detection signal corresponding to the fuel remaining amount, and obtains the fuel remaining amount based on the detection signal to the display means. Control means (microcomputer) to display.
JP-A-10-239133

また、このような燃料残量表示装置の中には、検出信号を出力する信号線の短絡や断線が生じた場合に、異常を報知するものがある。   Some of the remaining fuel amount display devices notify an abnormality when a short circuit or disconnection of a signal line that outputs a detection signal occurs.

しかしながら、信号線の短絡や断線の際に異常を報知するものは、信号線の短絡や断線以外の機械的故障が生じた場合には利用者に報知することができない。このため利用者が故障に気付きに難く、検出信号と実際の燃料残量との間に差が生じ、不自然な表示をさせてしまう虞れがあった。   However, what notifies the abnormality when the signal line is short-circuited or disconnected cannot be notified to the user when a mechanical failure other than the signal line short-circuit or disconnection occurs. For this reason, it is difficult for the user to notice the failure, and there is a possibility that a difference occurs between the detection signal and the actual fuel remaining amount, resulting in an unnatural display.

本発明は前述した問題点に着目し、燃料検出手段の故障を利用者に知らせることが可能な燃料残量表示装置を提供するものである。   The present invention pays attention to the above-mentioned problems, and provides a fuel remaining amount display device capable of notifying the user of failure of the fuel detection means.

本発明は、前述した課題を解決するため、車両に搭載される燃料タンク内の燃料残量を表示する燃料残量表示装置であって、表示手段と、前記燃料残量に応じた検出信号を出力する燃料検出手段と、前記検出信号に基づいて前記燃料残量を求めて前記表示手段に表示させると共に、前記車両の内燃機関の稼働時間を計測し、前記稼働時間が所定時間以上経過しても前記燃料残量の変化量が所定値以下のときに前記燃料検出手段が故障したと判断し、当該故障を前記表示手段もしくは所定の報知手段を通じて報知する制御手段と、を備えることを特徴とする。   In order to solve the above-described problem, the present invention is a fuel remaining amount display device that displays the remaining amount of fuel in a fuel tank mounted on a vehicle, and includes a display unit and a detection signal corresponding to the remaining fuel amount. The fuel detection means for outputting, the remaining fuel amount is obtained based on the detection signal and displayed on the display means, and the operating time of the internal combustion engine of the vehicle is measured, and the operating time has passed a predetermined time or more Control means for determining that the fuel detection unit has failed when the amount of change in the remaining amount of fuel is equal to or less than a predetermined value, and notifying the failure through the display unit or the predetermined notification unit. To do.

また本発明は、前述した課題を解決するため、車両に搭載される燃料タンク内の燃料残量を表示する燃料残量表示装置であって、表示手段と、前記燃料残量に応じた検出信号を出力する燃料検出手段と、前記検出信号に基づいて前記燃料残量を求めて前記表示手段に表示させると共に、前記車両の走行距離を計測し、前記車両が所定距離以上走行しても前記燃料残量の変化量が所定値以下のときに前記燃料検出手段が故障したと判断し、当該故障を前記表示手段もしくは所定の報知手段を通じて報知する制御手段と、を備えることを特徴とする。   In order to solve the above-mentioned problem, the present invention is a fuel remaining amount display device for displaying the remaining amount of fuel in a fuel tank mounted on a vehicle, comprising a display means and a detection signal corresponding to the remaining fuel amount. A fuel detection means for outputting the fuel, the fuel remaining amount is obtained based on the detection signal and displayed on the display means, and the travel distance of the vehicle is measured, and the fuel is measured even if the vehicle travels a predetermined distance or more. And a control unit that determines that the fuel detection unit has failed when the amount of change in the remaining amount is equal to or less than a predetermined value, and notifies the failure through the display unit or the predetermined notification unit.

また本発明は、前記表示手段が指針にて前記燃料残量を指示する指針式計器からなり、前記制御手段は前記燃料検出手段の故障を判定した際、前記指針に最低残量値以下を指示させることにより前記故障を報知することを特徴とする。   Further, the present invention comprises a pointer-type meter in which the display means indicates the fuel remaining amount with a pointer, and the control means instructs the pointer to be less than the minimum remaining amount value when determining that the fuel detecting means has failed. The failure is notified by making it happen.

また本発明は、前記報知手段が、前記燃料残量が所定値以下になった時に発光もしくは所定表示を行うことで報知する燃料警告手段と兼用で設けられており、前記制御手段は前記燃料検出手段の故障を判定した際、前記燃料警告手段を点滅もしくは表示と非表示を繰り返すことにより前記故障を報知することを特徴とする。   Further, the present invention is provided such that the notification means is also used as a fuel warning means for notifying by emitting light or performing a predetermined display when the fuel remaining amount becomes a predetermined value or less, and the control means detects the fuel detection When the failure of the means is determined, the fuel warning means is notified by blinking or repeating display and non-display.

本発明によれば、初期の目的を達成することができ、燃料検出手段の故障を速やかに利用者に知らせることが可能な燃料残量表示装置を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the initial objective can be achieved and the fuel remaining amount display apparatus which can notify a user of failure of a fuel detection means promptly can be provided.

以下、本発明の実施の形態について添付図面を用いて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

図１、図２は、本発明による燃料残量表示装置の第１の実施形態を示すもので、図１は、燃料残量表示装置のシステム構成を示すブロック図、図２は故障判定・報知処理を示すフロー図である。   1 and 2 show a first embodiment of a fuel remaining amount display device according to the present invention. FIG. 1 is a block diagram showing a system configuration of the fuel remaining amount display device, and FIG. 2 shows a failure determination / notification. It is a flowchart which shows a process.

図１において、本実施形態による燃料残量表示装置は、燃料検出手段１と、制御手段２と、表示手段３と、報知手段４とを備えている。   In FIG. 1, the fuel remaining amount display device according to the present embodiment includes fuel detection means 1, control means 2, display means 3, and notification means 4.

燃料検出手段１は、例えば車両に搭載される燃料タンク内に設置され、燃料液位に応じて可動するフロートに従って抵抗値が変化するフューエルセンダからなり、前記抵抗値を燃料残量に応じた第１の検出信号（検出信号）として出力するものである。   The fuel detection means 1 is, for example, a fuel sender that is installed in a fuel tank mounted on a vehicle and has a resistance value that changes in accordance with a float that moves according to the fuel level. 1 as a detection signal (detection signal).

制御手段２は、例えばマイクロコンピュータを適用でき、第１の検出信号を入力して演算処理し、その演算処理結果に応じて表示手段３及び報知手段４を動作させる。また制御手段２は、エンジン回転数に応じたタコパルスを検出してエンジン回転数に応じた第２の検出信号として出力するタコパルス検出手段５と接続され、第２の検出信号を入力して演算処理し、その演算処理結果に基づいて後述する故障判定及び故障報知処理を行う。なお燃料検出手段１及びタコパルス検出手段５と制御手段２との接続は、図示しないがＣＡＮ（Ｃｏｎｔｒｏｌｌｅｒ Ａｒｅａ Ｎｅｔｗｏｒｋ）通信ケーブルを経由して接続してもよい。   For example, a microcomputer can be applied as the control means 2, and the first detection signal is input to perform arithmetic processing, and the display means 3 and the notification means 4 are operated according to the arithmetic processing result. Further, the control means 2 is connected to the tacho pulse detecting means 5 for detecting the tacho pulse corresponding to the engine speed and outputting it as a second detection signal corresponding to the engine speed. Then, based on the calculation processing result, failure determination and failure notification processing described later are performed. The fuel detection means 1 and the tacho pulse detection means 5 and the control means 2 may be connected via a CAN (Controller Area Network) communication cable (not shown).

このような機能を担う制御手段２は、少なくとも第１，第２の検出信号に基づいて演算処理を実行するＣＰＵと、このＣＰＵにおける演算処理結果等を一時的に格納する読出し及び書換え可能なＲＡＭと、表示手段３及び警報手段４の動作や前記故障判定及び前記故障報知処理に必要な制御プログラムや制御データを格納したＲＯＭから構成される記憶部と、第１，第２の検出信号や制御信号やクロック信号などをやり取りするためにバス接続された入出力インターフェイスとを備えている。なお、前記記憶部として、ＲＡＭやＲＯＭの他にＥＥＰＲＯＭやフラッシュメモリなどからなる書換え可能な不揮発性メモリを用いることができる。また、この場合、制御手段２は、表示手段３や警報手段４を駆動するための駆動ドライバを有している。   The control means 2 having such a function includes a CPU that executes arithmetic processing based on at least the first and second detection signals, and a readable and rewritable RAM that temporarily stores arithmetic processing results and the like in the CPU. And a storage unit comprising a ROM storing control programs and control data necessary for the operation of the display means 3 and the alarm means 4, the failure determination and the failure notification processing, and the first and second detection signals and control It has an input / output interface connected by bus for exchanging signals and clock signals. In addition to the RAM and ROM, a rewritable nonvolatile memory such as an EEPROM or a flash memory can be used as the storage unit. In this case, the control means 2 has a drive driver for driving the display means 3 and the alarm means 4.

表示手段３は、例えば指針式計器（指針式燃料計）からなり、燃料残量に応じた指標部３１を設けてなる表示板３２と、ステッピングモータの回転軸に支持され、表示板３２上で指標部３１を指示する指針３３とを備えている。   The display means 3 is composed of, for example, a pointer-type meter (pointer-type fuel meter), and is supported by a display plate 32 provided with an indicator portion 31 corresponding to the remaining amount of fuel and a rotating shaft of a stepping motor. A pointer 33 for indicating the indicator unit 31 is provided.

報知手段４は、例えば発光により燃料残量警告を行う燃料警告手段からなり、燃料残量が所定値以下であることを示す警報マーク（図示しない）と、この警報マークを照明する光源（図示しない）とを備えている。なお前記警報マークは表示板３２に施したものでもよい。   The notifying means 4 is composed of a fuel warning means for warning the remaining amount of fuel by, for example, light emission. ). The alarm mark may be provided on the display board 32.

次に制御手段２により実行される（１）表示手段３の制御処理、（２）報知手段４の制御処理、（３）故障判定・報知処理について説明する。   Next, (1) control processing of the display means 3, (2) control processing of the notification means 4, and (3) failure determination / notification processing executed by the control means 2 will be described.

（１）表示手段３の制御処理
制御手段２は、所定周期毎に入力する第１の検出信号に基づいて、指針３３の表示板３２における振れ角データを演算処理して求める。このように求められた振れ角データはＲＡＭに一時的に記憶され、前回求めた振れ角データと今回求めた最新の振れ角データとの比較（差分）に基づいて、指針３３を実際に動作させるための制御データを生成し、この制御データに基づいて前記駆動ドライバ及び前記ステッピングモータを作動させて指針３３による燃料残量指示を行わせる。 (1) Control processing of the display means 3 The control means 2 calculates and calculates the deflection angle data of the pointer 33 on the display plate 32 based on the first detection signal input every predetermined period. The deflection angle data thus obtained is temporarily stored in the RAM, and the pointer 33 is actually operated based on the comparison (difference) between the deflection angle data obtained last time and the latest deflection angle data obtained this time. Control data is generated, and the drive driver and the stepping motor are operated based on the control data to instruct the remaining fuel amount by the pointer 33.

（２）報知手段４の制御処理
制御手段２は、第１の検出信号に基づく演算処理結果から燃料残量が所定値以下（例えば１０Ｌ以下）になったと判断すると、報知手段４を作動させて前記警報マークを前記光源にて照明するローフューエル警報を行う。 (2) Control processing of the notification means 4 When the control means 2 determines that the remaining fuel amount has become a predetermined value or less (for example, 10 L or less) from the calculation processing result based on the first detection signal, the control means 2 operates the notification means 4. A low fuel alarm is performed to illuminate the alarm mark with the light source.

（３）故障判定・報知処理
制御手段２は、図２に示すように、まずステップＳ１（稼働時間計測）において、所定周期毎に入力する第２の検出信号と前記クロック信号とに基づいて、車両の内燃機関の稼働時間（例えば任意のある時点から内燃機関の停止期間を除いた積算稼働時間もしくは内燃機関のスタートからの稼働継続時間の何れでもよい）を計測する。次のステップＳ２（所定時間経過判定）では、ステップＳ１における稼働時間が所定時間（例えば１時間）以上経過したか否かが判定される。ステップＳ２の判定結果が「ＹＥＳ」すなわち、所定時間以上経過した場合、ステップＳ３（燃料消費量算定）に進む。ステップＳ３では第１の検出信号に基づいて所定時間内における燃料残量の変化量（燃料消費量）が算定される。次のステップＳ４（燃料消費量判定）では、ステップＳ３における燃料消費量が所定値以下（例えば０Ｌ）であるか否かが判定され、当該ステップＳ４での判定が「ＹＥＳ」すなわち、所定値以下の場合、内燃機関の稼働時間が所定時間以上経過しても燃料消費量が所定値以下となるため、燃料検出手段１が故障したと判断し、ステップＳ５（故障報知）に進む。ステップＳ５では、表示手段３の指針３３に最低残量値（例えばエンプティを示す目盛位置）以下を強制的に指示させることにより燃料検出手段１の故障を報知する。すなわち多くの利用者は燃料計の値が最低残量値に到達する前に給油する傾向にあることから、最低残量値以下の強制指示により、故障を認識できる。 (3) Failure determination / informing process As shown in FIG. 2, the control means 2 first, in step S1 (operation time measurement), based on the second detection signal input at predetermined intervals and the clock signal, The operating time of the internal combustion engine of the vehicle (for example, any of the accumulated operating time excluding the stop period of the internal combustion engine from an arbitrary point in time or the operation continuation time from the start of the internal combustion engine) is measured. In the next step S2 (determination of predetermined time), it is determined whether or not the operation time in step S1 has exceeded a predetermined time (for example, 1 hour). If the determination result of step S2 is “YES”, that is, if a predetermined time or more has elapsed, the process proceeds to step S3 (fuel consumption calculation). In step S3, the amount of change in the remaining amount of fuel (fuel consumption) within a predetermined time is calculated based on the first detection signal. In the next step S4 (determination of fuel consumption), it is determined whether or not the fuel consumption in step S3 is a predetermined value or less (for example, 0 L), and the determination in step S4 is “YES”, that is, a predetermined value or less. In this case, even if the operation time of the internal combustion engine has elapsed for a predetermined time or more, the fuel consumption amount is not more than a predetermined value. Therefore, it is determined that the fuel detection means 1 has failed, and the process proceeds to step S5 (failure notification). In step S5, the failure of the fuel detection unit 1 is notified by forcibly instructing the pointer 33 of the display unit 3 to be equal to or less than the minimum remaining amount value (for example, the scale position indicating empty). That is, many users tend to refuel before the fuel gauge value reaches the minimum remaining amount value, and therefore can recognize a failure by a forcible instruction below the minimum remaining amount value.

以上のように、本実施形態では、車両に搭載される燃料タンク内の燃料残量を表示する燃料残量表示装置であって、表示手段３と、燃料残量に応じた第１の検出信号を出力する燃料検出手段１と、第１の検出信号に基づいて燃料残量を求めて表示手段３に表示させると共に、車両の内燃機関の稼働時間を計測し、当該稼働時間が所定時間以上経過しても燃料残量の変化量が所定値以下のときに燃料検出手段１が故障したと判断し、当該故障を表示手段３を通じて報知する制御手段２と、を備えることにより、燃料検出手段１の故障を利用者に知らせることできる。   As described above, in the present embodiment, the fuel remaining amount display device displays the remaining amount of fuel in the fuel tank mounted on the vehicle, and includes the display unit 3 and the first detection signal corresponding to the remaining amount of fuel. The fuel detection means 1 for outputting the fuel, the remaining fuel amount is obtained based on the first detection signal and displayed on the display means 3, and the operation time of the internal combustion engine of the vehicle is measured, and the operation time has passed a predetermined time or more Even if the fuel detection unit 1 is provided with a control unit 2 that determines that the fuel detection unit 1 has failed when the amount of change in the remaining amount of fuel is equal to or less than a predetermined value and notifies the failure through the display unit 3. It is possible to inform the user of the failure of

また本実施形態では、予め備えられている表示手段３を通じて故障を報知することができるため、専用の報知手段を不要にできるというメリットがある。   Moreover, in this embodiment, since a failure can be notified through the display means 3 provided in advance, there is an advantage that a dedicated notification means can be eliminated.

また本実施形態では、表示手段３の指針３３に最低残量値以下を指示させることにより故障を報知するため、利用者に車両が走行不能となることを知らせることができる。なお故障の報知は、燃料残量が所定値以下になった時に発光することで報知する燃料警告手段からなる報知手段４を用いて故障を報知することもできる。この場合、通常の燃料残量警告との差別化を図るため、燃料警告手段を点滅させることで、故障を報知することができる。   Moreover, in this embodiment, since the failure is notified by instructing the indicator 33 of the display means 3 to be equal to or less than the minimum remaining amount value, it is possible to notify the user that the vehicle cannot travel. Note that the failure can be notified using the notification means 4 including the fuel warning means that notifies by emitting light when the remaining amount of fuel becomes a predetermined value or less. In this case, in order to differentiate from the normal fuel remaining amount warning, the failure can be notified by blinking the fuel warning means.

また故障を報知する報知手段４は、燃料警告手段のごとき発光式警告手段に限らず、任意の報知手段４を用いることができる。例えば報知手段４として液晶等の電子式表示パネルを用いる場合、故障を報知するメッセージやアイコン表示をしたり、これらメッセージやアイコンの表示と非表示を周期的に繰り返すようにしてもよい。   Further, the notifying means 4 for notifying the failure is not limited to the light emitting type warning means such as the fuel warning means, and any notifying means 4 can be used. For example, when an electronic display panel such as a liquid crystal is used as the notification means 4, a message or icon for notifying a failure may be displayed, or display and non-display of these messages and icons may be repeated periodically.

図３、図４は、本発明による燃料残量表示装置の第２の実施形態を示すもので、図３は、燃料残量表示装置のシステム構成を示すブロック図、図４は故障判定・報知処理を示すフロー図である。   3 and 4 show a second embodiment of the fuel remaining amount display device according to the present invention. FIG. 3 is a block diagram showing the system configuration of the fuel remaining amount display device. FIG. 4 shows a failure determination / notification. It is a flowchart which shows a process.

図３において、本実施形態による燃料残量表示装置は、タコパルス検出手段５に替えて、スピードパルス検出手段６を制御手段２に接続した点のみが前記第１の実施形態と相違している。スピードパルス検出手段６は、車両の走行距離に応じたスピードパルスを検出して走行距離に応じた第３の検出信号として出力する。そして制御手段２は、第３の検出信号を入力して演算処理し、その演算処理結果に基づいて後述する故障判定及び故障報知処理を行う。   In FIG. 3, the remaining fuel amount display device according to the present embodiment is different from the first embodiment only in that the speed pulse detection means 6 is connected to the control means 2 instead of the tacho pulse detection means 5. The speed pulse detection means 6 detects a speed pulse corresponding to the travel distance of the vehicle and outputs it as a third detection signal corresponding to the travel distance. Then, the control means 2 receives the third detection signal and performs arithmetic processing, and performs failure determination and failure notification processing, which will be described later, based on the calculation processing result.

次に図４に基づいて本実施形態における故障判定・報知処理を説明する。
制御手段２は、まずステップＳ１１（走行距離計測）において、所定周期毎に入力する第３の検出信号に基づいて、車両の走行距離（例えば任意の開始時点からの積算距離もしくは内燃機関のスタートからの継続積算距離の何れでもよい）を計測する。次のステップＳ１２（所定距離判定）では、ステップＳ１１における走行距離が所定距離（例えば２０ｋｍ）以上に到達したか否かが判定される。ステップＳ１２の判定結果が「ＹＥＳ」すなわち、所定距離以上に到達した場合、ステップＳ１３（燃料消費量算定）に進む。ステップＳ１３では第１の検出信号に基づいて所定距離における燃料残量の変化量（燃料消費量）が算定される。次のステップＳ１４（燃料消費量判定）では、ステップＳ１３における燃料消費量が所定値以下（例えば０Ｌ）であるか否かが判定され、当該ステップＳ１４での判定が「ＹＥＳ」すなわち、所定値以下の場合、所定距離以上走行しても燃料消費量が所定値以下となるため、燃料検出手段１が故障したと判断し、ステップＳ１５（故障報知）に進む。ステップＳ１５では、任意の報知手法により故障を報知する。 Next, failure determination / notification processing in the present embodiment will be described with reference to FIG.
First, in step S11 (travel distance measurement), the control means 2 determines the travel distance of the vehicle (for example, the accumulated distance from an arbitrary start time or the start of the internal combustion engine, based on the third detection signal input every predetermined cycle. Any of the continuous accumulated distances of the above) may be measured. In the next step S12 (predetermined distance determination), it is determined whether or not the travel distance in step S11 has reached a predetermined distance (for example, 20 km) or more. If the determination result in step S12 is “YES”, that is, if the distance reaches a predetermined distance or more, the process proceeds to step S13 (fuel consumption calculation). In step S13, the amount of change in fuel remaining amount (fuel consumption) at a predetermined distance is calculated based on the first detection signal. In the next step S14 (fuel consumption determination), it is determined whether or not the fuel consumption in step S13 is a predetermined value or less (for example, 0 L), and the determination in step S14 is “YES”, that is, a predetermined value or less. In this case, even if the vehicle travels a predetermined distance or more, the fuel consumption amount is not more than a predetermined value. Therefore, it is determined that the fuel detection unit 1 has failed, and the process proceeds to step S15 (failure notification). In step S15, the failure is notified by an arbitrary notification method.

このように構成した本実施形態によっても前記第１の実施形態と同様の効果を得ることができる。   The same effect as that of the first embodiment can be obtained by this embodiment configured as described above.

本発明の第１の実施形態による燃料残量表示装置のシステム構成を示すブロック図。1 is a block diagram showing a system configuration of a fuel remaining amount display device according to a first embodiment of the present invention. 同実施形態における故障判定・報知処理を示すフロー図。The flowchart which shows the failure determination and alerting | reporting process in the embodiment. 本発明の第２の実施形態による燃料残量表示装置のシステム構成を示すブロック図。The block diagram which shows the system configuration | structure of the fuel residual amount display apparatus by the 2nd Embodiment of this invention. 同実施形態における故障判定・報知処理を示すフロー図。The flowchart which shows the failure determination and alerting | reporting process in the embodiment.

符号の説明Explanation of symbols

１ 燃料検出手段
２ 制御手段
３ 表示手段
４ 報知手段
５ タコパルス検出手段
６ スピードパルス検出手段
３１ 指標部
３２ 表示板
３３ 指針 DESCRIPTION OF SYMBOLS 1 Fuel detection means 2 Control means 3 Display means 4 Notification means 5 Tacho pulse detection means 6 Speed pulse detection means 31 Indicator part 32 Display board 33 Pointer

Claims (4)

車両に搭載される燃料タンク内の燃料残量を表示する燃料残量表示装置であって、
表示手段と、
前記燃料残量に応じた検出信号を出力する燃料検出手段と、
前記検出信号に基づいて前記燃料残量を求めて前記表示手段に表示させると共に、前記車両の内燃機関の稼働時間を計測し、前記稼働時間が所定時間以上経過しても前記燃料残量の変化量が所定値以下のときに前記燃料検出手段が故障したと判断し、当該故障を前記表示手段もしくは所定の報知手段を通じて報知する制御手段と、
を備えることを特徴とする燃料残量表示装置。 A fuel remaining amount display device for displaying a remaining amount of fuel in a fuel tank mounted on a vehicle,
Display means;
Fuel detection means for outputting a detection signal corresponding to the remaining fuel amount;
Based on the detection signal, the remaining fuel amount is obtained and displayed on the display means, and the operating time of the internal combustion engine of the vehicle is measured, and the change in the remaining fuel amount even if the operating time has exceeded a predetermined time. Control means for determining that the fuel detection means has failed when the amount is equal to or less than a predetermined value, and notifying the failure through the display means or predetermined notification means;
A fuel remaining amount display device comprising: 車両に搭載される燃料タンク内の燃料残量を表示する燃料残量表示装置であって、
表示手段と、
前記燃料残量に応じた検出信号を出力する燃料検出手段と、
前記検出信号に基づいて前記燃料残量を求めて前記表示手段に表示させると共に、前記車両の走行距離を計測し、前記車両が所定距離以上走行しても前記燃料残量の変化量が所定値以下のときに前記燃料検出手段が故障したと判断し、当該故障を前記表示手段もしくは所定の報知手段を通じて報知する制御手段と、
を備えることを特徴とする燃料残量表示装置。 A fuel remaining amount display device for displaying a remaining amount of fuel in a fuel tank mounted on a vehicle,
Display means;
Fuel detection means for outputting a detection signal corresponding to the remaining fuel amount;
Based on the detection signal, the fuel remaining amount is obtained and displayed on the display means, the travel distance of the vehicle is measured, and the amount of change in the fuel remaining amount is a predetermined value even if the vehicle travels a predetermined distance or more. Control means for determining that the fuel detection means has failed at the following time, and notifying the failure through the display means or predetermined notification means;
A fuel remaining amount display device comprising: 前記表示手段が指針にて前記燃料残量を指示する指針式計器からなり、前記制御手段は前記燃料検出手段の故障を判定した際、前記指針に最低残量値以下を指示させることにより前記故障を報知することを特徴とする請求項１または請求項２記載の燃料残量表示装置。 The display means comprises a pointer-type meter that indicates the fuel remaining amount with a pointer, and the control means instructs the pointer to indicate a value not more than the minimum remaining amount when determining that the fuel detecting means has failed. The remaining fuel amount display device according to claim 1, wherein the remaining fuel amount is displayed. 前記報知手段が、前記燃料残量が所定値以下になった時に発光もしくは所定表示を行うことで報知する燃料警告手段と兼用で設けられており、前記制御手段は前記燃料検出手段の故障を判定した際、前記燃料警告手段を点滅もしくは表示と非表示を繰り返すことにより前記故障を報知することを特徴とする請求項１または請求項２記載の燃料残量表示装置。 The notifying means is provided also as a fuel warning means for notifying by emitting light or a predetermined display when the fuel remaining amount becomes a predetermined value or less, and the control means determines a failure of the fuel detecting means. 3. The fuel remaining amount display device according to claim 1, wherein the failure is notified by repeatedly blinking or displaying and not displaying the fuel warning means.
JP2007331240A 2007-12-24 2007-12-24 Fuel residual amount display device Pending JP2009150852A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012158294A (en) * 2011-02-02 2012-08-23 Denso Corp Display, method and program for displaying fuel residual quantity
JP2013233849A (en) * 2012-05-08 2013-11-21 Denso Corp Fuel indicating device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012158294A (en) * 2011-02-02 2012-08-23 Denso Corp Display, method and program for displaying fuel residual quantity
JP2013233849A (en) * 2012-05-08 2013-11-21 Denso Corp Fuel indicating device

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