JPS5915820A - Fuelometer for automobile - Google Patents
Fuelometer for automobileInfo
- Publication number
- JPS5915820A JPS5915820A JP12514282A JP12514282A JPS5915820A JP S5915820 A JPS5915820 A JP S5915820A JP 12514282 A JP12514282 A JP 12514282A JP 12514282 A JP12514282 A JP 12514282A JP S5915820 A JPS5915820 A JP S5915820A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- flow rate
- vehicle speed
- vehicle
- fuel flow
- 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
Classifications
-
- 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
Abstract
Description
【発明の詳細な説明】 本発明は自動車用燃費計に関する。[Detailed description of the invention] The present invention relates to a fuel efficiency meter for automobiles.
近年、自動車にドライブコンピュータに組込マれだシあ
るいは単品として燃費計が装備される傾向があるが、従
来の自動車用燃費計は例えば第１図に示すように構成さ
れていた。In recent years, there has been a trend for automobiles to be equipped with fuel efficiency meters either built into drive computers or as standalone items, but conventional automobile fuel efficiency meters have been constructed as shown in FIG. 1, for example.
すなわち、車速の検出手段としての車速センサ１によっ
て得られる車速を積算回路２に入力し、その積算値（走
行距１１１１）、を除算回路５に入力する。また、燃料
流量の検出手段としての燃料流量計３によって得られる
燃料流量を積算回路４に入力し、その積算値（燃料消費
量）ｂを除算回路５に入力する。除算回路５ではａ／ｂ
を求め、その結果を燃費として、表示手段としての表示
器６によシ表示する。こうして、車速及び燃料流量に対
し例えば第２図に示す如き燃費を表示するのである。That is, the vehicle speed obtained by the vehicle speed sensor 1 serving as vehicle speed detection means is input to the integration circuit 2, and its integrated value (mileage 1111) is input to the division circuit 5. Further, the fuel flow rate obtained by the fuel flow meter 3 serving as a fuel flow rate detection means is inputted into the integration circuit 4, and the integrated value (fuel consumption amount) b is inputted into the division circuit 5. In the division circuit 5, a/b
is calculated, and the result is displayed as the fuel efficiency on the display 6 as a display means. In this way, the fuel consumption is displayed in relation to the vehicle speed and fuel flow rate as shown in FIG. 2, for example.
しかしながら、このような従来の燃費計にあっては、車
速ゼロの状態が続く停車時には、第２図から明らかなよ
うに燃費ゼロを示すのみで、停車時には何の便利さもな
かった。However, such a conventional fuel efficiency meter only indicates zero fuel consumption when the vehicle is stopped and the vehicle speed continues to be zero, as is clear from FIG. 2, and is not useful at all when the vehicle is stopped.
本発明はこのような点に鑑みてなされたもので、車速の
検出手段からの信号に基づいて停車（車速ゼロ）時に燃
料流量の検出手段の出力端を直接表示手段に接続する切
換手段を設け、停車時には燃料流量を表示するようにし
て、便利さを向上させたものである。The present invention has been made in view of these points, and includes a switching means for directly connecting the output end of the fuel flow rate detection means to the display means when the vehicle is stopped (vehicle speed is zero) based on a signal from the vehicle speed detection means. This improves convenience by displaying the fuel flow rate when the vehicle is stopped.
以下に本発明の一実施例を第３図によって説明する。但
し、この実施例において従来例（第１図）と同−侠累に
は同一符号を付して説明を省略し、異々る要素について
のみ説明する。An embodiment of the present invention will be described below with reference to FIG. However, in this embodiment, the same elements as in the conventional example (FIG. 1) are denoted by the same reference numerals, and the explanation thereof will be omitted, and only the different elements will be explained.
燃費を算出するための除胸１回路５の出力端と表示器６
との間に切換手段としての切換スイッチ７を設け、除算
回路５の出力端と燃料流４ｉ劃３の出力端とを切換スイ
ッチＴを介して選択的に表示器６に接続するようにしで
ある。そして、この切換スイッチＴは、車速センサ１か
らの信号を受ける単連判定回路８によシ、走行中は除算
回路５の出力端を表示器６に接続する１ｉｌＪ（Ｓｔ側
）に切換えられ、停車（車速ゼロ）時には燃料流量計３
の出力端を表示器６に接続する側（８２側）に切換えら
れるように構成しである。Output terminal of the chest removal circuit 5 and display device 6 for calculating fuel efficiency
A changeover switch 7 as a changeover means is provided between the divider circuit 5 and the output end of the fuel flow 4i section 3 to be selectively connected to the display 6 via the changeover switch T. . This changeover switch T is switched to 1ilJ (St side) which connects the output end of the division circuit 5 to the display 6 during driving by the single-unit determination circuit 8 that receives the signal from the vehicle speed sensor 1. Fuel flow meter 3 when stopped (vehicle speed is zero)
The configuration is such that the output end of the display can be switched to the side connected to the display 6 (82 side).
したがって、走行中については従来と同様に表示器６に
よって燃費が表示されるが、車速ゼロの停車時（燃費ゼ
ロの時）には切換スイッチ１が８２側に切換えられるこ
とにより、燃料流量計３によって得られる燃料流量がそ
のまま表示器６に表示される。すなわち、表示器６には
例えば第４図に示す如く燃費又は燃料流量が表示される
。Therefore, while driving, the fuel consumption is displayed on the display 6 as in the past, but when the vehicle is stopped at zero speed (when the fuel consumption is zero), the changeover switch 1 is switched to the 82 side, and the fuel flow meter 3 The fuel flow rate obtained by is displayed as is on the display 6. That is, the fuel consumption or fuel flow rate is displayed on the display 6, as shown in FIG. 4, for example.
尚、燃料流蓋の検出手段としての燃料流量計３を特別に
設けることなく、例えは電子制御式の燃料噴射弁を備え
るエンジンにあっては、燃料噴射弁への燃料噴射パルス
から燃料流量を検出するようにしてもよい。It should be noted that, for example, in an engine equipped with an electronically controlled fuel injection valve, the fuel flow rate can be determined from the fuel injection pulse to the fuel injection valve without providing a special fuel flow meter 3 as a means for detecting the fuel flow cap. It may also be detected.
以上説明したように本発明によれば、走行中は通常通り
燃費を表示するもの、燃費がゼロとなる停車（車速ゼロ
）時には燃料流蓋を表示するようにしたので１．燃費計
を遊ばせることがなく、便利さが増すものである。As explained above, according to the present invention, the fuel consumption is displayed as usual while driving, but the fuel flow cover is displayed when the fuel consumption is zero (vehicle speed is zero) when the vehicle is stationary.1. This increases the convenience of the fuel consumption meter without making it erratic.
第１図は従来例を示す燃費計のブロック図、第２図は同
上の表示特性を示す線図、第３図は本発明の一実施例を
示す燃費計のブロック図、第４図は同上の表示特性を示
す線図でおる。
１・・・車速センサ ３・・・燃料流量計 ５・・
・除算回路 ６・・・表示器 Ｉ・・・切換スイッ
チ８・・・単連判定回路
特 許 出 願 人 日本電子機器株式会社代理人 弁
理士 笹 島 富二雄Fig. 1 is a block diagram of a fuel efficiency meter showing a conventional example, Fig. 2 is a diagram showing the display characteristics of the same as above, Fig. 3 is a block diagram of a fuel efficiency meter showing an embodiment of the present invention, and Fig. 4 is a diagram of the same as above. This is a diagram showing the display characteristics of . 1...Vehicle speed sensor 3...Fuel flow meter 5...
・Divider circuit 6...Display device I...Selector switch 8...Single series judgment circuit Patent Applicant: Japan Electronics Co., Ltd. Agent Patent attorney: Fujio Sasashima
Claims (1)
除算して、その結果を燃費として表示するようにした自
動車用燃費計において、車速の検出手段からの信号に基
づいて停車時に燃料流量の検出手段の出力端を直接表示
手段に接続する切換手段を設け、停車時には燃料流量を
表示するようにしたことを特徴とする自動車用燃費計。[Claims] The vehicle is equipped with vehicle speed detection means and fuel flow rate detection means, and is configured to divide the cumulative value of the detected speed by the cumulative value of the detected fuel flow rate and display the result as fuel efficiency. In the automobile fuel efficiency meter, a switching means is provided to directly connect the output end of the fuel flow rate detection means to the display means when the vehicle is stopped based on a signal from the vehicle speed detection means, so that the fuel flow rate is displayed when the vehicle is stopped. A fuel efficiency meter for automobiles that is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12514282A JPS5915820A (en) | 1982-07-20 | 1982-07-20 | Fuelometer for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12514282A JPS5915820A (en) | 1982-07-20 | 1982-07-20 | Fuelometer for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5915820A true JPS5915820A (en) | 1984-01-26 |
Family
ID=14902894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12514282A Pending JPS5915820A (en) | 1982-07-20 | 1982-07-20 | Fuelometer for automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5915820A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090251303A1 (en) * | 2008-04-04 | 2009-10-08 | Fuji Jukogyo Kabushiki Kaisha | Vehicle display device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51124458A (en) * | 1975-04-23 | 1976-10-29 | Nippon Denso Co Ltd | Instantaneous fuel consumption rate calculator for vehicle |
-
1982
- 1982-07-20 JP JP12514282A patent/JPS5915820A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51124458A (en) * | 1975-04-23 | 1976-10-29 | Nippon Denso Co Ltd | Instantaneous fuel consumption rate calculator for vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090251303A1 (en) * | 2008-04-04 | 2009-10-08 | Fuji Jukogyo Kabushiki Kaisha | Vehicle display device |
| US8305205B2 (en) * | 2008-04-04 | 2012-11-06 | Fuji Jukogyo Kabushiki Kaisha | Vehicle display device |
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