JPS603324Y2 - Instantaneous fuel consumption display device for vehicles - Google Patents
Instantaneous fuel consumption display device for vehiclesInfo
- Publication number
- JPS603324Y2 JPS603324Y2 JP17420080U JP17420080U JPS603324Y2 JP S603324 Y2 JPS603324 Y2 JP S603324Y2 JP 17420080 U JP17420080 U JP 17420080U JP 17420080 U JP17420080 U JP 17420080U JP S603324 Y2 JPS603324 Y2 JP S603324Y2
- Authority
- JP
- Japan
- Prior art keywords
- fuel consumption
- vehicle
- circuit
- instantaneous fuel
- instantaneous
- 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.)
- Expired
Links
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Description
【考案の詳細な説明】
本考案は、車両用瞬時燃費表示装置に係り、特に、自動
車に用いるに好適な、車両に搭載された機関の瞬時燃費
を表示する車両用瞬時燃費表示装置の改良に関する。[Detailed Description of the Invention] The present invention relates to an instantaneous fuel consumption display device for a vehicle, and particularly relates to an improvement of an instantaneous fuel consumption display device for a vehicle that is suitable for use in an automobile and displays the instantaneous fuel consumption of an engine installed in a vehicle. .
従来、車両の燃料に関する情報を運転者に与える装置と
しては、燃料残量計が広く用いられている。Conventionally, a fuel gauge has been widely used as a device for providing information regarding the fuel of a vehicle to a driver.
しかしこれは、あくまでも燃料タンク内の燃料残量レベ
ルを表示するものであるため、車両の走行状態に応じた
瞬時燃費を運転者が知ることは困難であった。However, since this only displays the level of fuel remaining in the fuel tank, it has been difficult for the driver to know the instantaneous fuel consumption depending on the driving state of the vehicle.
一方近年、石油資源の枯渇に伴なう省エネルギー意識の
昂揚から車両の走行状態に応じた瞬時燃費を直ちに表示
できる瞬時燃費計が要求されてきている。On the other hand, in recent years, due to increasing awareness of energy conservation due to the depletion of petroleum resources, there has been a demand for instantaneous fuel consumption meters that can immediately display instantaneous fuel consumption according to the driving conditions of the vehicle.
このような瞬時燃費計として従来は、例えば、特開昭４
８−５４５３号で示される如く、車両停止時に、燃料消
費量／時間によって瞬時燃費を演算し、表示するものが
提案され、又、出願人は、車両走行時に、所定燃料消費
毎に、走行距離／燃料消費量を演算し、表示する瞬時燃
費計を提案しているが、前者は、単位時間当りの燃料消
費量しかわからず、車両運転者が通常意識している、単
位燃料消費量当りの走行距離を容易に知ることができな
いという欠点を有し、一方後者は、単位燃料消費量当り
の走行距離を容易に知ることができるが、走行距離がＯ
である車両停止時には、適正な運転を行なっても、又、
いわゆる空吹かしなど燃料消費の多くなる運転を行なっ
ても、区別なく、最悪の瞬時燃費を表示してしまい、運
転者に経済運転の指針を与えることができないという問
題点を有した。Conventionally, such an instantaneous fuel consumption meter has been used, for example,
As shown in No. 8-5453, it has been proposed to calculate and display the instantaneous fuel consumption based on fuel consumption/time when the vehicle is stopped, and the applicant has also proposed to calculate and display the instantaneous fuel consumption based on fuel consumption/time when the vehicle is running. / proposed an instantaneous fuel consumption meter that calculates and displays the amount of fuel consumption, but the former only knows the amount of fuel consumed per unit time, and the amount of fuel consumed per unit of time is not what vehicle drivers are usually aware of. The latter has the disadvantage that the mileage cannot be easily known, while the latter allows the mileage per unit fuel consumption to be easily known, but when the mileage is O
When the vehicle is stopped, even if you drive properly,
Even when driving that consumes a lot of fuel, such as so-called idling, the worst instantaneous fuel consumption is displayed without distinction, and the problem is that the driver cannot be provided with guidelines for economical driving.
一方、内燃機関の吸気管負圧が低いときには、混合気の
供給量が大きいため、瞬時燃費も大となり、逆に、吸気
管負圧が高いときには、混合気の供給量が小となるため
、瞬時燃費も小さくなることを利用して、吸気管負圧針
により、瞬時燃費を簡便的に表示する、いわゆるエコノ
ミメータも広く用いられているが、走行距離情報が全く
入っておらず、正確には瞬時燃費計とはいえなかった。On the other hand, when the intake pipe negative pressure of the internal combustion engine is low, the amount of air-fuel mixture supplied is large, resulting in a large instantaneous fuel consumption.On the other hand, when the intake pipe negative pressure is high, the amount of air-fuel mixture supplied is small, so Taking advantage of the fact that instantaneous fuel consumption decreases, so-called economimeters are also widely used, which simply display instantaneous fuel consumption using an intake pipe negative pressure needle, but they do not contain any mileage information and are not accurate. It could not be called an instantaneous fuel consumption meter.
本考案は、前記従来の欠点を解消するべくなされたもの
で、車両の走行状態に拘らず、瞬時燃費を正確に表示で
きる車両用瞬時燃費表示装置を提供することを目的とす
る。The present invention has been made to eliminate the above-mentioned conventional drawbacks, and an object of the present invention is to provide an instantaneous fuel consumption display device for a vehicle that can accurately display instantaneous fuel consumption regardless of the driving condition of the vehicle.
本考案は、車両に搭載された機関の瞬時燃費を表示する
車両用瞬時燃費表示装置において、車速が所定値以上で
ある車両走行時には、走行距離／燃料消費量によって瞬
時燃費を表示し、車速が所定値未満である車両停止時に
は、燃料消費量／時間によって瞬時燃費を表示するよう
にして、前記目的を遠戚したものである。The present invention is an instantaneous fuel consumption display device for a vehicle that displays the instantaneous fuel consumption of the engine installed in the vehicle.When the vehicle is traveling at a speed greater than or equal to a predetermined value, the instantaneous fuel consumption is displayed based on travel distance/fuel consumption. This is a distant relative of the above purpose by displaying the instantaneous fuel consumption in terms of fuel consumption/time when the vehicle is stopped and the fuel consumption is less than a predetermined value.
以下図面を参照して、本考案の実施例を詳細に説明する
。Embodiments of the present invention will be described in detail below with reference to the drawings.
本実施例は、電子制御燃料噴射装置を備えた機関が搭載
された車両に本考案を適応したもので、第１図に示す如
く、電子制御燃料噴射装置出力の燃料噴射信号τに応じ
て、所定燃料噴射量（例えば０．０５ｃｃ ）毎に各回
路を制御する信号を出力するためゲート回路１２、該ゲ
ート回路１２出力を積分する積分回路１４、該積分回路
１４出力を、ゲート時間を決める燃料噴射量（この場合
は０．０５ｃｃ ）に対応する基準値Ａと比較し、積分
回路１４出力が基準値Ａを越えたときに出力を発生する
比較器１６、該比較器１６出力により、各回路をラッチ
或いはクリアするためのラッチ信号或いはクリア信号を
出力するラッチ・クリア回路１８からなる燃料噴射量測
定回路１０と、車両の走行時に、変速機等に配設された
車速ピックアップから車速に応じて出力される車速信号
を、所定燃料消費（噴射）量（０，０５ｃｃ ）に相当
する時間だけ計数し、その間の走行距離を出力するため
の、前記ラッチ・クリア回路１８の出力により開かれ、
前記比較器１６出力による閉じられるゲート回路２２、
該ゲート回路２２出力を計数する、前記ラッチ・クリア
回路１８出力によってクリアされるカウンタ２４、前記
ラッチ・クリア回路１８出力に応じて、該カウンタ２４
出力をラッチするラッチ回路２６からなる走行距離測定
回路２０と、１．００Ｈｚ程度の基準クロックパルスが
入力され、所定燃料消費量（０，０５ｃｃ ）を消費す
るのに要した時間を常時測定するための、前記ラッチ・
クリア回路１８出力によって開かれ前記比較器１６出力
によって閉じられるゲート回路３２、該ゲート回路３２
出力を計数する、前記ラッチ・クリア回路１８出力によ
りクリアされるカウンタ３４、前記ラッチ・クリア回路
１８出力のラッチ信号に応じて、該カウンタ３４出力を
ラッチするラッチ回路３６からなる時間測定回路３０と
、前記ラッチ回路２６出力の、所定燃料消費量（０，０
５ｃｃ ）における走行距離（車速にも対応している）
を基準値Ｂと比較し、該基準値Ｂと所定燃料消費量当り
の走行距離との大小関係に応じて、切換信号を出力する
比較回路４０と、該比較回路４０出力の切換信号に応じ
て、所定燃料消費量当りの走行距離、即ち、車速か所定
値以上である車両走行時には、前記ラッチ回路２６出力
の所定燃料消費量（０，０５ｃｃ）当りの走行距離によ
って瞬時燃費を算出して出力し、一方、所定燃料消費量
当りの走行距離、即ち、車速が所定値未満である車両停
止時には、前記ラッチ回路３６出力の、所定燃料消費量
当りの所要時間の逆数となる、燃料消費量／時間によっ
て瞬時燃費を演算して出力する表示駆動回路４２と、緑
色、黄色、赤色、３個のランプを有し、前記表示駆動回
路４２出力に応じて、例えば、走行距離／燃料消費量が
１５ｍ／／以上であるか、或いは、燃料消費量／時間が
３０ｃｃ／分以下であるときに緑色のランプが点燈され
、又、走行距離／燃料消費量が５〜１５ｋｒｒ１／ｌで
あるか、或いは、燃料消費量／時間が３０〜９０ｃｃ／
分であるときに黄色のランプが点燈され、更に、走行距
離／燃料消費量が５ｋｒｎ／ｌ以下であるか、或いは、
燃料消費量／時間が９０ｃｃ／分以上であるときに赤色
のランプが点燈するようにされている表示部４４とから
構成されている。In this embodiment, the present invention is applied to a vehicle equipped with an engine equipped with an electronically controlled fuel injection device, and as shown in FIG. A gate circuit 12 outputs a signal to control each circuit every predetermined fuel injection amount (for example, 0.05 cc), an integration circuit 14 integrates the output of the gate circuit 12, and the output of the integration circuit 14 is used to determine the gate time. A comparator 16 compares the injection amount (0.05cc in this case) with a reference value A and generates an output when the output of the integrating circuit 14 exceeds the reference value A. A fuel injection amount measurement circuit 10 includes a latch/clear circuit 18 that outputs a latch signal or a clear signal for latching or clearing the fuel injection amount, and a fuel injection amount measuring circuit 10 that outputs a latch signal or a clear signal for latching or clearing the fuel injection amount. Opened by the output of the latch/clear circuit 18 for counting the output vehicle speed signal for a time corresponding to a predetermined fuel consumption (injection) amount (0.05 cc) and outputting the distance traveled during that time,
a gate circuit 22 closed by the comparator 16 output;
A counter 24 that counts the output of the gate circuit 22 and is cleared by the output of the latch/clear circuit 18;
A mileage measuring circuit 20 consisting of a latch circuit 26 that latches the output and a reference clock pulse of about 1.00 Hz are input to constantly measure the time required to consume a predetermined amount of fuel consumption (0.05 cc). , the said latch
a gate circuit 32 opened by the clear circuit 18 output and closed by the comparator 16 output;
a time measuring circuit 30 consisting of a counter 34 that counts the output and is cleared by the output of the latch/clear circuit 18; and a latch circuit 36 that latches the output of the counter 34 in response to a latch signal of the output of the latch/clear circuit 18; , the predetermined fuel consumption amount (0,0
5cc) (corresponds to vehicle speed)
a comparison circuit 40 that compares the reference value B with a reference value B and outputs a switching signal depending on the magnitude relationship between the reference value B and the mileage per predetermined fuel consumption; , When the vehicle is traveling at a travel distance per predetermined fuel consumption amount, that is, the vehicle speed is a predetermined value or more, the instantaneous fuel consumption is calculated and output based on the travel distance per predetermined fuel consumption amount (0.05 cc) of the output of the latch circuit 26. On the other hand, when the vehicle is stopped when the traveling distance per predetermined fuel consumption amount, that is, the vehicle speed is less than a predetermined value, the fuel consumption amount/ It has a display drive circuit 42 that calculates and outputs instantaneous fuel consumption according to time, and has three green, yellow, and red lamps, and according to the output of the display drive circuit 42, for example, the traveling distance/fuel consumption is 15 m. // or more, or the green lamp lights up when the fuel consumption/time is less than 30cc/min, and the mileage/fuel consumption is 5-15krr1/l, or , fuel consumption/hour is 30~90cc/
The yellow lamp lights up when the mileage/fuel consumption is less than 5 krn/l, or
The display section 44 has a red lamp that lights up when the fuel consumption amount/time is 90 cc/minute or more.
前記走行距離測定回路２０及び時間測定回路３０におけ
る測定間隔を決めるための、燃料噴射量測定回路１０に
おける所定燃料消費量（０，０５ｃｃ）は、表示部４４
における瞬時燃費の表示更新周期に応じて決められてい
る。The predetermined fuel consumption amount (0.05cc) in the fuel injection amount measurement circuit 10 for determining the measurement interval in the mileage measurement circuit 20 and the time measurement circuit 30 is displayed on the display section 44.
It is determined according to the display update cycle of instantaneous fuel consumption.
例えば、車両が６０ｂ／ｈで定地走行している場合の燃
費を６０ｃｃ／分であるとすると、０．０晦に燃料が０
．０５ｃｃ消費されているので、この６０ｂ／ｈ定速走
行時の表示部４４における表示更新周期は、０．０５秒
＋Ｔｃ（Ｔｃはラッチ・クリア時間）となる。For example, if the fuel efficiency when a vehicle is traveling at 60 b/h on a steady road is 60 cc/min, then the fuel will be 0.0 m at 0.0 m.
．． Since 0.5 cc has been consumed, the display update cycle on the display unit 44 during this 60 b/h constant speed running is 0.05 seconds + Tc (Tc is the latch/clear time).
以下作用を説明する。The action will be explained below.
燃料噴射量測定回路１０は、電子制御燃料噴射装置から
機関の、例えば吸気マニホルドに配設された燃料噴射弁
に出力される燃料噴射信号Ｔを積算し、燃料噴射量０．
０５ｃｃ毎に、ゲート開信号、ゲート閉信号、ラッチ信
号、クリア信号等を走行距離測定回路２０及び時間測定
回路３０に出力する。The fuel injection amount measuring circuit 10 integrates the fuel injection signal T output from the electronically controlled fuel injection device to the fuel injection valve disposed in the engine's intake manifold, for example, and determines the fuel injection amount as 0.
A gate open signal, a gate close signal, a latch signal, a clear signal, etc. are output to the mileage measuring circuit 20 and the time measuring circuit 30 every 0.5 cc.
走行距離測定回路２０においては、前記燃料噴射量測定
回路１０出力に応じて、燃料噴射量０．０５ｃｃに対応
する間の車速信号をカウンタ２４で計数し、ラッチ回路
２６で保持している。In the mileage measuring circuit 20, a counter 24 counts a vehicle speed signal corresponding to a fuel injection amount of 0.05 cc according to the output of the fuel injection amount measuring circuit 10, and the latch circuit 26 holds the counted vehicle speed signal.
一方、時間測定回路３０は、基準クロックパルスを前記
燃料噴射量測定回路１０の出力に応じてカウンタ３４で
計数し、燃料噴射量０．０５ｃｃに要した時間をラッチ
回路３６で保持している。On the other hand, the time measurement circuit 30 counts the reference clock pulses with a counter 34 according to the output of the fuel injection amount measurement circuit 10, and holds the time required for the fuel injection amount of 0.05 cc with a latch circuit 36.
比較回路４０は、前記ラッチ回路２６出力の単位燃料噴
射量当りの走行距離を基準値Ｂと比較し、比較結果に応
じて切換信号を表示駆動回路４２に出力する。The comparison circuit 40 compares the traveling distance per unit fuel injection amount output from the latch circuit 26 with a reference value B, and outputs a switching signal to the display drive circuit 42 in accordance with the comparison result.
表示駆動回路４２では、前記比較回路４０出力に応じて
、燃料噴射量０．０５ｃｃ当りの走行直璃勤（基準値Ｂ
より大であるとき、即ち、車速か所定値以上である車両
走行時には、走行距離／燃料消費量によって瞬時燃費を
表示するべく表示部４４を駆動する。The display drive circuit 42 determines the running speed (reference value B) per 0.05 cc of fuel injection amount according to the output of the comparison circuit 40.
When the vehicle speed is greater than the predetermined value, that is, when the vehicle is traveling at a speed equal to or higher than a predetermined value, the display section 44 is driven to display the instantaneous fuel consumption in terms of travel distance/fuel consumption.
具体的には、走行距離／燃料消費量が１５ｋｍ／ １以
上であれば緑色のランプを点燈し、５〜１５ｍ／／であ
れば黄色のランプを点燈腰５ｋｍ／ｌ以下であれば赤色
のランプを点燈する。Specifically, if the mileage/fuel consumption is 15 km/l or more, the green lamp will be turned on, if it is 5 to 15 m//, the yellow lamp will be turned on, and if the driving distance is 5 km/l or less, the red lamp will be turned on. Turn on the lamp.
一方、所定燃料消費量（０，０５ｃｃ ）当りの走行距
離が基準値Ｂより小であるとき、即ち、車速か所定値未
満である車両停止時或いは微速走行時には、燃料消費量
／時間によって瞬時燃費を表示するべく表示部４４を駆
動する。On the other hand, when the travel distance per predetermined fuel consumption (0.05 cc) is smaller than the reference value B, that is, when the vehicle is stopped or running at a slow speed, the vehicle speed is less than the predetermined value, the instantaneous fuel consumption is determined by the fuel consumption/time. The display section 44 is driven to display the following.
具体的には、燃料消費量／時間が３０ｃｃ／分以下であ
れば緑色のランプを点燈し、３０〜９０ｃｃ／分であれ
ば黄色のランプを点燈し、９０ｃｃ／分以上であるとき
には赤色のランプを点燈する。Specifically, if the fuel consumption/time is 30 cc/min or less, a green lamp is lit, if it is 30 to 90 cc/min, a yellow lamp is lit, and if it is 90 cc/min or more, a red lamp is lit. Turn on the lamp.
本実施例においては、走行距離或いは時間を、所定の燃
料消費量（０，０５ｃｃ ）に対応する走行距離、或い
は時間として求めるようにしているため、瞬時燃費が悪
い場合には、瞬時燃費を算出する時間間隔が短かくなり
、表示更新周期も短かくなるので、運転者に対して燃費
改善への意思表示が迅速に行なわれる。In this example, since the traveling distance or time is calculated as the traveling distance or time corresponding to a predetermined fuel consumption amount (0.05cc), if the instantaneous fuel consumption is poor, the instantaneous fuel consumption is calculated. Since the time interval between these changes and the display update period are also shortened, the driver can quickly express his/her intention to improve fuel efficiency.
なお、走行距離／燃料消費量或いは燃料消費量／時間を
算出する方法は前記実施例に限定されず、例えば、所定
時間毎に走行距離／燃料消費量或いは燃料消費量／時間
を算出することも可能である。Note that the method of calculating mileage/fuel consumption or fuel consumption/time is not limited to the above embodiments; for example, mileage/fuel consumption or fuel consumption/time may be calculated at predetermined intervals. It is possible.
なお前記実施例においては、表示部４４が、緑色、黄色
、顔色の３個のランプにより構成され、運転者に対して
瞬時燃費をランプで表示するようにされていたが、表示
部の構成はこれに限定されず、デジタル表示器を用いて
、瞬時燃費を数値で表示することも可能である。In the above embodiment, the display section 44 was composed of three lamps, one for green, one for yellow, and one for facial color, and was designed to display the instantaneous fuel consumption to the driver. However, the structure of the display section is as follows. The present invention is not limited to this, and it is also possible to display the instantaneous fuel consumption numerically using a digital display.
もちろんこの場合には、車両走行時と車両停止時では、
単位表示も、例えばｋｍ／ ｌ ｚ ｃｃ ／ ｍｉｎ
のように切換える必要がある。Of course, in this case, when the vehicle is running and when the vehicle is stopped,
The unit display is, for example, km/lz cc/min.
You need to switch like this.
なお前記実施例は、本考案を、電子制御燃料噴射装置を
備えた内燃機関を有する車両に適用腰燃料噴射信号Ｔか
ら燃料消費量を算出するようにしていたが、本考案の適
用範囲はこれに限定されず、燃料流量を測定する燃料流
量計を別途設けることにより、気化器を備えた内燃機関
が搭載された車両にも同様に適用できることは明らかで
ある。In the above embodiment, the present invention is applied to a vehicle having an internal combustion engine equipped with an electronically controlled fuel injection device.Although the fuel consumption amount is calculated from the fuel injection signal T, the scope of application of the present invention is not limited to this. It is obvious that the present invention is not limited to this, and can be similarly applied to a vehicle equipped with an internal combustion engine equipped with a carburetor by separately providing a fuel flow meter for measuring the fuel flow rate.
以上説明したとおり、本考案によれば、車両の走行状態
に拘らず、瞬時燃費を正確に表示でき、従って、運転者
に対して、適確な燃費改善への意思表示を行なうことが
できるという優れた効果を有する。As explained above, according to the present invention, it is possible to accurately display instantaneous fuel consumption regardless of the driving condition of the vehicle, and therefore it is possible to accurately indicate to the driver an intention to improve fuel efficiency. Has excellent effects.
第１図は、本考案に係る車両用瞬時燃費表示装置の実施
例の構成を示すブロック線図である。
１０・・・燃料噴射量測定回路、１２・・・ゲート回路
、１４・・・積分回路、１６・・・比較器、１８・・・
ラッチ・クリア回路、２０・・・走行距離測定回路、２
２・・・ゲート回路、２４・・・カウンタ、２６・・・
ラッチ回路、３０・・・時間測定回路、３２・・・ゲー
ト回路、３４・・・カウンタ、３６・・・ラッチ回路、
４０・・・比較回路、４２・・・表示駆動回路、４４・
・・表示部。FIG. 1 is a block diagram showing the configuration of an embodiment of an instantaneous fuel consumption display device for a vehicle according to the present invention. DESCRIPTION OF SYMBOLS 10...Fuel injection amount measurement circuit, 12...Gate circuit, 14...Integrator circuit, 16...Comparator, 18...
Latch/clear circuit, 20... mileage measurement circuit, 2
2... Gate circuit, 24... Counter, 26...
Latch circuit, 30... Time measurement circuit, 32... Gate circuit, 34... Counter, 36... Latch circuit,
40... Comparison circuit, 42... Display drive circuit, 44.
...Display section.
Claims (1)
燃費表示装置において、車速か所定値以上である車両走
行時には、走行距離／燃料消費量によって瞬時燃費を表
示し、車速か所定値未満である車両停止時には、燃料消
費量／時間によって瞬時燃費を表示するようにしたこと
を特徴とする車両用瞬時燃費表示装置。In a vehicle instantaneous fuel consumption display device that displays the instantaneous fuel consumption of the engine installed in a vehicle, when the vehicle is traveling at a speed greater than or equal to a predetermined value, the instantaneous fuel consumption is displayed based on travel distance/fuel consumption, and when the vehicle speed is less than a predetermined value. An instantaneous fuel consumption display device for a vehicle, characterized in that when the vehicle is stopped, instantaneous fuel consumption is displayed in terms of fuel consumption/time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17420080U JPS603324Y2 (en) | 1980-12-04 | 1980-12-04 | Instantaneous fuel consumption display device for vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17420080U JPS603324Y2 (en) | 1980-12-04 | 1980-12-04 | Instantaneous fuel consumption display device for vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5795430U JPS5795430U (en) | 1982-06-11 |
| JPS603324Y2 true JPS603324Y2 (en) | 1985-01-30 |
Family
ID=29532254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17420080U Expired JPS603324Y2 (en) | 1980-12-04 | 1980-12-04 | Instantaneous fuel consumption display device for vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS603324Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1155948B (en) * | 1982-10-14 | 1987-01-28 | Fiat Auto Spa | SIGNALING DEVICE FOR A VEHICLE DRIVEN BY AN INTERNAL COMBUSTION ENGINE SUITABLE TO PROVIDE AN INDICATION OF FUEL CONSUMPTION AND A SIGNALING RELATING TO THE DRIVING CONDUCT TO BE ADOPTED TO REDUCE SUCH CONSUMPTION |
| JP4536612B2 (en) * | 2005-07-13 | 2010-09-01 | 日野自動車株式会社 | Fuel consumption evaluation device for vehicles equipped with idling stop device |
-
1980
- 1980-12-04 JP JP17420080U patent/JPS603324Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5795430U (en) | 1982-06-11 |
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