JPH02234021A - Fuel flow rate measuring method for automobile - Google Patents
Fuel flow rate measuring method for automobileInfo
- Publication number
- JPH02234021A JPH02234021A JP5689289A JP5689289A JPH02234021A JP H02234021 A JPH02234021 A JP H02234021A JP 5689289 A JP5689289 A JP 5689289A JP 5689289 A JP5689289 A JP 5689289A JP H02234021 A JPH02234021 A JP H02234021A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- flow rate
- fuel flow
- concentration
- total
- 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 37
- 238000000034 method Methods 0.000 title claims abstract description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 14
- 238000010790 dilution Methods 0.000 abstract description 8
- 239000012895 dilution Substances 0.000 abstract description 8
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000004088 simulation Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 42
- 238000005259 measurement Methods 0.000 description 11
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、自動車の燃料流量計測方法に関する。[Detailed description of the invention] [Industrial application field] TECHNICAL FIELD The present invention relates to a method for measuring fuel flow rate in an automobile.
（従来の技術）
自動車の燃料流量を計測するのに、従来は自動車の燃料
タンクとキャブレタとの間の燃料供給配管に流量センサ
を取り付け、この流量センサによって計測を行うように
していた．
〔発明が解決しようとする課題〕
しかしながら、上記従来の自動車の燃料流量計測方法は
次のような問題点があった．
すなわち、上記計測方法は、自動車の試験時においては
流量センサを取り付けるのに対し、一般のユーザが自動
車を運転する場合には、前記流量センサを取り付けず、
自動車の実際の走行態様に則したものでないこと、そし
て、流量センサを取り付けた場合と、これを取り付けな
い場合とでは配管経路が相違し、この相違に起因して、
流量特性を含めた自動車の性能（例えば加減速応答性や
出力特性）に少なからぬ差が生ずるといった問題点があ
った．また、上記計測方法においては、自動車の試験を
行うために、メーカなどにおいて流量センサを取り付け
たり取り外したりする必要があるなど計測以外の作業を
必要とし、大変面倒であるといった問題点もある．
本発明は、上述の事柄に留意してなされたもので、その
目的とするところは、通常の走行状態と同じ条件で、つ
まり、自動車の性能に何ら影響を及ぼすことなく、しか
も、計測以外の作業を殆ど必要としないで、自動車の燃
料流量を簡単に計測できる方法を提供することにある。(Prior Art) Conventionally, to measure the fuel flow rate of a car, a flow rate sensor was attached to the fuel supply pipe between the car's fuel tank and the carburetor, and the measurement was performed using this flow rate sensor. [Problems to be Solved by the Invention] However, the above-mentioned conventional method for measuring fuel flow rate in automobiles has the following problems. That is, in the above measurement method, a flow rate sensor is attached when testing a car, whereas when a general user drives a car, the flow rate sensor is not attached.
In addition, the piping route is different when a flow sensor is installed and when it is not installed, and due to this difference,
The problem was that there were considerable differences in vehicle performance, including flow characteristics (e.g. acceleration/deceleration response and output characteristics). In addition, the above measurement method has the problem that it requires work other than measurement, such as the need for the manufacturer to install and remove the flow rate sensor in order to test the vehicle, which is very troublesome. The present invention has been made with the above-mentioned considerations in mind, and its purpose is to operate under the same conditions as normal driving conditions, that is, without affecting the performance of the vehicle in any way, and to perform measurements other than measurement. To provide a method for easily measuring the fuel flow rate of an automobile without requiring much work.
上述の目的を達成するため、本発明に係る自動車の燃料
流量計測方法は、自動車からの排気ガスをＣＶＳ装置を
介して分析針に供給して排気ガス濃度を求め、この排気
ガス濃度と、前記ＣＶＳ装置からの排気ガス流量データ
とをダイリエートストリーム法を用いて演算処理するこ
とにより排気ガス排出重量を求め、さらに、この徘気ガ
ス排出重量をカーボンバランス法を応用して演算処理す
ることにより瞬時燃料流量を計測するようにしてなるも
のである．
〔作用〕
自動車からの排気ガスの一部をＣＶＳ装置を介して例え
ば００８分析計に供給し、排気ガスのＣＯオ濃度を計測
する．そして、このｃｏａｌ度とＣＶＳ装置からの排気
ガス流量データ（例えばベンチェリ入口の温度および圧
力など）や大気圧データなどをダイリエートストリーム
法を用いて演算処理して排気ガス排出重量を求め、さら
に、この排気ガス排出重量をカーボンバランス法を応用
して演算処理することにより瞬時燃料流量を求めるよう
にしているので、流量センサを燃料供給配管に取り付け
る必要がなく、通常の運転時と同じ条件の下で自動車の
性能を評価することができる．〔実施例〕
以下、本発明の実施例を、図面を参照しながら説明する
．
第１図は本発明に係る自動車の燃料流量計測方法を実施
するための装置の概略構成を示し、この図において、ｌ
は図外の自動車からの排気ガスＧをサンプリングするた
めのＣＶＳ装置で、定流量を得るためのベンチュリ２．
ブロア３などを備えている．ベンチェリ２の上流側には
排気ガスＧを導入するための管路４と希釈用空気Ａを導
入するための管路５とが点６において接続された状態で
設けられるとともに、前記接続点６とベンチュリ２との
間の点７にガス供給管路８が接続されている．９はガス
供給管路８に介装された三方弁で、その第１ポート９ａ
が前記接続点７側に、第２ポート９ｂが後述する排気ガ
ス濃度測定部ｌｌ側にそれぞれ接続されるとともに、第
３ポート９ｃは接続管路１０を介して前記空気導入管５
に接続されている。In order to achieve the above-mentioned object, the method for measuring the fuel flow rate of an automobile according to the present invention supplies exhaust gas from the automobile to an analysis needle via a CVS device to determine the exhaust gas concentration, and calculates the exhaust gas concentration and the above-mentioned The exhaust gas exhaust weight is calculated by calculating the exhaust gas flow rate data from the CVS device using the dilute stream method, and the weight of the wandering gas exhaust is calculated by applying the carbon balance method. It is designed to measure instantaneous fuel flow rate. [Operation] A portion of the exhaust gas from a car is supplied to, for example, a 008 analyzer via a CVS device, and the CO2 concentration of the exhaust gas is measured. Then, this coal degree, exhaust gas flow rate data from the CVS device (for example, temperature and pressure at the ventilator inlet), atmospheric pressure data, etc. are processed using the dilute stream method to determine the exhaust gas discharge weight, and further, Since the instantaneous fuel flow rate is determined by calculating the weight of exhaust gas emissions using the carbon balance method, there is no need to attach a flow rate sensor to the fuel supply piping, and the fuel flow rate is calculated under the same conditions as during normal operation. It is possible to evaluate the performance of a car. [Examples] Examples of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of an apparatus for carrying out the method for measuring fuel flow rate of an automobile according to the present invention, and in this figure, l
1 is a CVS device for sampling exhaust gas G from a car (not shown), and includes a venturi 2. to obtain a constant flow rate.
Equipped with blower 3, etc. A pipe line 4 for introducing exhaust gas G and a pipe line 5 for introducing dilution air A are provided on the upstream side of the ventilator 2 and are connected at a point 6. A gas supply line 8 is connected to a point 7 between the venturi 2 and the venturi 2. 9 is a three-way valve installed in the gas supply pipe 8, and its first port 9a
is connected to the connection point 7 side, and the second port 9b is connected to the exhaust gas concentration measuring section ll side, which will be described later.
It is connected to the.
そして、このＣＶＳ装置ｌには、シャシダイナモなどの
模擬走行試験装置（図外）を用いて例えば所定の１０モ
ード走行状態を現出させた自動車からの排気ガスＧの全
量が希釈用空気Ａとともに導入される．そして、希釈用
空気Ａによって適宜希釈された排気ガスＧの一部は、希
釈排気ガスＧ′としてガス供給管路Ｂを介して排気ガス
濃度測定部１１に送られる．また、このＣＶＳ装″Ｉｌ
ｌからはベンチュリ２の入口温度およびその圧力などが
排気ガス流量データａとして出力され、このデータａは
後述する燃料流量計測演算装置１５に入力される．１ｌ
は排気ガス濃度測定部で、前記希釈排気ガスＧ′中に含
まれるＣＯおよびＨＣ系ガスの全てを酸化してＣＯ！に
変換する例えば酸化触媒などの酸化手段ｌ２と、この酸
化手段１２によって得られたＣＯ，と希釈排気ガスＧ′
中にもともと含まれていたＣＯ，との和の濃度、つまり
、希釈排気ガスＧ′中の総ｃｏａｌ度を分析するＣ Ｏ
ｚ分析計１３と、吸引用のポンプ１４などを備えてい
る．そして、前記００８分析計１３によって検出された
ｍＣＯ．濃度は排気ガス濃度ｂとして後述する燃−料流
量計測演算装置１５に入力される．１５は燃料流量計測
演算装置で、例えばＣＰＵよりなり、前記ＣＶＳ装置１
からの徘気ガス流量データａ，排気ガス濃度測定部１１
からの排気ガス濃度ｂなどや大気圧データＣを入力とし
て取り込み、これらのデータａ，ｂ，ｃを、ダイリエー
トストリーム法を応用して処理することにより、排気ガ
ス排出重量としての総Ｃ Ｏ ｘ徘出重量を求め、さら
に、この総ＣＯ露徘出重量を、カーボンバランス法を応
用して処理することにより、燃料流量を求めるように構
成されている．
すなわち、前記総ＣＯ！排出重量を求めるには、ダイリ
エートストリーム法により、
Ｃｏｔ ｇ（ｔ）＝ρ・ＱＭ（ｔ）（Ｃｏｔ Ｍ（ｔ
）−ＣＯ！ Ｄ（ｔ）） ・・・・・・（
１）なる式を用いて演算を行うのである．
なお、ここに、
Ｃｏｗ ｇ（ｔ）： Ｉ−一タルＣＯ．排出重量（ｇ／
ｔ）Ｄ：ＣＯ＊密度Ｃｇ／１）
ＣＯｘ Ｍ（ｔ）：希釈排気ガスＣＯ！９ａ度〔％〕ｃ
ｏｔ Ｄ（ｔ）：希釈用空気中のＣＯｔ濃度〔％〕ＱＭ
（ｔ）： ＣＶＳ総流量（ｆ／ｔ）をそれぞれ表し、さ
らに、前記ＱＭ（ｔ）は、・・・・・・《２》
なる式で表される．
なお、ここに、
Ｃ，：ＣＶＳベンチェリ流量係敗
Ｔｗ ；ＣＶＳベンチュリ人口温度〔゜Ｃ〕Ｐｖ ：Ｃ
ＶＳベンチェリ入口圧力（閣Ｈｇ）Ｐ，：大気圧〔■Ｈ
ｇ）
をそれぞれ表す．
そして、瞬時燃料流量を求めるには、カーボンバランス
法を応用して
？ＦＥ
なる式を用いて演算を行うのである。In this CVS device 1, the total amount of exhaust gas G from a car that has been made to exhibit, for example, a predetermined 10-mode driving condition using a simulated driving test device (not shown) such as a chassis dynamometer, is stored together with dilution air A. be introduced. Then, a part of the exhaust gas G suitably diluted with the dilution air A is sent to the exhaust gas concentration measuring section 11 via the gas supply pipe B as the diluted exhaust gas G'. In addition, this CVS equipment "Il
The inlet temperature of the venturi 2, its pressure, etc. are outputted from l as exhaust gas flow rate data a, and this data a is input to a fuel flow rate measurement/arithmetic device 15, which will be described later. 1l
is an exhaust gas concentration measuring section that oxidizes all of the CO and HC gases contained in the diluted exhaust gas G' to produce CO! oxidation means l2 such as an oxidation catalyst, CO obtained by this oxidation means 12, and diluted exhaust gas G'
The total coal concentration in the diluted exhaust gas G' is analyzed.
It is equipped with a z analyzer 13, a pump 14 for suction, etc. Then, mCO. detected by the 008 analyzer 13. The concentration is inputted as exhaust gas concentration b to a fuel flow rate measurement and calculation device 15, which will be described later. Reference numeral 15 denotes a fuel flow rate measurement/arithmetic device, which is composed of, for example, a CPU, and is connected to the CVS device 1.
Wandering gas flow rate data a from exhaust gas concentration measuring section 11
The total CO It is configured to calculate the fuel flow rate by determining the weight of CO exposed and further processing this total weight of exposed CO by applying the carbon balance method. That is, the total CO! To calculate the discharge weight, use the dilute stream method as follows: Cot g(t)=ρ・QM(t)(Cot M(t
)-CO! D(t)) ・・・・・・(
The calculation is performed using the formula 1). In addition, here, Cow g(t): I-Ital CO. Discharge weight (g/
t) D: CO*Density Cg/1) COx M(t): Diluted exhaust gas CO! 9a degrees [%] c
ot D(t): COt concentration in dilution air [%] QM
(t): Represents the CVS total flow rate (f/t), and furthermore, the QM(t) is expressed by the following formula. In addition, here, C, :CVS Venturi flow rate failure Tw ;CVS Venturi population temperature [°C]Pv :C
VS Vencheri inlet pressure (Hg) P,: Atmospheric pressure [■H
g) respectively. And to find the instantaneous fuel flow rate, apply the carbon balance method? The calculation is performed using the formula FE.
なお、ここに、
ｅ＜ｔ＞：瞬時燃料流量（１／ｔ）
ＫＣＯ．：ＣＯ！中のカーボン重量比
ＫＦＥ ：燃料１２中のカーボン重量（ｇ／ｊ！）をそ
れぞれ表す．
従って、上記（１）〜（３）式によって所望の燃料流量
を求めることができるのである。In addition, here, e<t>: Instantaneous fuel flow rate (1/t) KCO. :CO! Carbon weight ratio KFE: represents the carbon weight (g/j!) in the fuel 12. Therefore, the desired fuel flow rate can be determined using the above equations (1) to (3).
上述の実施例においては、希釈排気ガスＧ′中に含まれ
るＣＯおよびＨＣ系ガスを全てＣＯ２に変換し、希釈排
気ガスＧ′中の総ＣＯ■濃度に基づいて燃料流量を求め
るようにしていたが、本発明はこれに限られるものでは
なく、希釈排気ガスＧ′中のｃｏｉ１度、ＣＯ濃度およ
びＨＣ系ガス濃度をそれぞれ個別に測定し、これらの濃
度を燃料流量計測演算装置ｌ５に入力し、所定の演算を
行？ようにしてもよい．
すなわち、第２図はこのように構成された装置の概略構
成を示し、この図における排気ガス濃度測定部１１には
、ＣＯ分析部２１．ＣＯ■分析部２２，｝｛Ｃ分析部２
３が互いに並列に設けてあり、２４， ２５．２６は前
記各分析部２１， ２２． ２３にそれぞれ設けられる
ＣＯ分析計，ＣＯ，分析計，ＩＣ分析計、また、２７〜
２９は吸引用のンプである．
そして、分析計２４〜２６において検出されたＣＯ濃度
、ＣＯ！濃度、ＨＣ系ガス濃度はそれぞれ燃料流量計測
演算装置１５に入力されるようにしてある．
而して、この実施例において燃料流量を求めるには、先
ず、ＣＯ，ＣＯ， 、ＨＣ系ガスの排出重量をダイリエ
ートストリーム法により、Ｃｏｇ（Ｌ）−Ｃｏ密度・Ｑ
Ｍ（ｔ）（ＣＯＭ（ｔ）−ＣＯＤ（ｔ）ｌ
・・・・・・（４）ＣＯ！ ｇ（ｔ）−Ｃｏｔ密度・
ＱＭ（ｔ）（Ｃｏ，Ｍ（ｔ）−ＣＯ意Ｄ（ｔ））
・・・・・・（５）ＨＣｇ（ｔ）−ＨＣ密度・ＱＭ（
ｔ）（ＨｃＭ（ｔ）？ＨＣＤ（ｔ）１
なる式を用いて演算を行うのである．
なお、ここに、
ＱＭ（ｔ）： ＣＶＳ総流量（ｆｆｉ／ｔ）ＣＯＭ（ｔ
）＋希釈排気ガスＣＯ濃度（ ｐｐｍ）Ｃｏ．Ｍ（ｔ）
：希釈排気ガスＣＯｔ濃度〔％〕ＨＣＭ（ｔ）：希釈排
気ガスＨＣ濃度（ｐｐｓｃ）ＣＯＤ（ｔ）：希釈用空気
中ＣＯ濃度（ ｐｐｍ）ｃｏｉ Ｄ（ｔ）？希釈用空気
中ＣＯ■濃度（％）｝１ｃＤ（ｔ）＋希釈用空気中ＨＣ
ｉＪ度（ｐｐｍｃ）をそれぞれ表し、さらに、前記ＱＭ
（ｔ）は、・・・・・・（６）
・・・・・・（７》
なる式で表される。In the above embodiment, all CO and HC gases contained in the diluted exhaust gas G' are converted into CO2, and the fuel flow rate is determined based on the total CO2 concentration in the diluted exhaust gas G'. However, the present invention is not limited to this, and the coi 1 degree, CO concentration, and HC gas concentration in the diluted exhaust gas G' are individually measured, and these concentrations are input to the fuel flow rate measurement calculation device 15. , perform a given operation? You can do it like this. That is, FIG. 2 shows a schematic configuration of the apparatus configured as described above, and the exhaust gas concentration measurement section 11 in this figure includes a CO analysis section 21. CO ■ analysis section 22,} {C analysis section 2
3 are provided in parallel with each other, and 24, 25.26 are the respective analysis units 21, 22. CO analyzer, CO analyzer, IC analyzer installed in 23, and 27~
29 is a suction pump. Then, the CO concentration detected in the analyzers 24 to 26, CO! The concentration and the HC gas concentration are respectively input to the fuel flow rate measurement calculation device 15. Therefore, in order to determine the fuel flow rate in this example, first, the exhaust weight of CO, CO, HC gas is calculated using the dilute stream method, and Cog(L)-Co density/Q
M(t)(COM(t)-COD(t)l
・・・・・・(4) CO! g(t)-Cot density・
QM(t)(Co,M(t)−COiD(t))
......(5) HCg(t)-HC density・QM(
The calculation is performed using the formula: t) (HcM(t)?HCD(t)1. Here, QM(t): CVS total flow rate (ffi/t) COM(t
) + diluted exhaust gas CO concentration (ppm) Co. M(t)
: Diluted exhaust gas COt concentration [%] HCM (t): Diluted exhaust gas HC concentration (ppsc) COD (t): CO concentration in air for dilution (ppm) coi D (t)? CO in the air for dilution ■ Concentration (%)} 1 cD (t) + HC in the air for dilution
iJ degree (ppmc), and furthermore, the QM
(t) is expressed by the following formula.
なお、ここに、
ｃ．：ＣＶＳベンチュリ流量係数
Ｔｙ：ＣＶＳベンチェリ入口温度（’Ｃ）Ｐｖ ：ＣＶ
Ｓベンチェリ入口圧力（ｍＨｇ）Ｐ．：大気圧（一〇ｇ
）
をそれぞれ表す．
そして、瞬時燃料流量を求めるには、カーボンバランス
法を応用して
ｊ！ （ ｔ ） − （ Ｋ Ｃ Ｏ−Ｃ Ｏ ｇ
（ ｔ ） ＋ Ｋ Ｃ Ｏ ｔ ・ＣＯ．（ｔ）＋
ＫＨＣ − ＨＣｇ（ｔ）） ／ＫＦＥ・・・・・・（
８）なる式を用いて演算を行うのである。In addition, here, c. :CVS venturi flow coefficient Ty:CVS venturi inlet temperature ('C)Pv :CV
S Vencheri inlet pressure (mHg) P. :Atmospheric pressure (10g
) respectively. Then, to find the instantaneous fuel flow rate, apply the carbon balance method to determine the instantaneous fuel flow rate. (t) - (K C O - C O g
(t) + K C O t ・CO. (t)+
KHC − HCg(t)) /KFE・・・・・・(
The calculation is performed using the formula 8).
なお、ここに、
ｊ！（ｔ）：瞬時燃料流量（ｆｆｉ／ｔ）ＫＣＯ ｊ
Ｃｏ中のカーボン重量比
ＫＣＯ．ｊｃｏ．中のカーボン重量比
ＫＨＣ Ｓ ＨＣ中のカーボン重量比
ＫＦＥ ：燃料ｌｌ中のカーボン重量（ｇ／ｊ！）をそ
れぞれ表す．
従って、上記（４）〜（８）式によって所望の燃料流量
を求めることができるのである．
〔発明の効果〕
以上説明したように、本発明によれば、燃料供給流路に
流量センサを取り付けたりする必要がなく、言わば非接
触状態で瞬時燃料流量を計測できるので、通常の走行状
態と同じ条件で、つまり、自動車の性能に何ら影響を及
ぼすことなく、しかも、計測以外の作業を殆ど必要とし
ないで、自動車の燃料流量を簡単に計測できる．In addition, here, j! (t): Instantaneous fuel flow rate (ffi/t) KCO j
Carbon weight ratio in Co KCO. jco. Carbon weight ratio in HC S Carbon weight ratio in HC KFE: Represents the weight of carbon in 1 liter of fuel (g/j!). Therefore, the desired fuel flow rate can be determined using equations (4) to (8) above. [Effects of the Invention] As explained above, according to the present invention, there is no need to attach a flow rate sensor to the fuel supply flow path, and the instantaneous fuel flow rate can be measured in a so-called non-contact state. The fuel flow rate of a car can be easily measured under the same conditions, that is, without any effect on the car's performance, and with almost no work other than measurement required.
Claims (1)
供給して排気ガス濃度を求め、この排気ガス濃度と、前
記ＣＶＳ装置からの排気ガス流量データとをダイリュー
トストリーム法を用いて演算処理することにより排気ガ
ス排出重量を求め、さらに、この排気ガス排出重量をカ
ーボンバランス法を応用して演算処理することにより瞬
時燃料流量を計測するようにしたことを特徴とする自動
車の燃料流量計測方法。Exhaust gas from a car is supplied to an analyzer via a CVS device to determine the exhaust gas concentration, and this exhaust gas concentration and exhaust gas flow rate data from the CVS device are processed using a dilute stream method. 1. A method for measuring a fuel flow rate of an automobile, characterized in that the weight of exhaust gas discharged is obtained by calculating the weight of exhaust gas discharged, and the instantaneous fuel flow rate is measured by calculating the weight of exhaust gas discharged by applying a carbon balance method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5689289A JPH02234021A (en) | 1989-03-08 | 1989-03-08 | Fuel flow rate measuring method for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5689289A JPH02234021A (en) | 1989-03-08 | 1989-03-08 | Fuel flow rate measuring method for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02234021A true JPH02234021A (en) | 1990-09-17 |
Family
ID=13040088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5689289A Pending JPH02234021A (en) | 1989-03-08 | 1989-03-08 | Fuel flow rate measuring method for automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02234021A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155962A (en) * | 2011-03-04 | 2011-08-17 | 奇瑞汽车股份有限公司 | System and method for accurately measuring instantaneous oil consumption value of automobile |
| DE202014004223U1 (en) | 2014-05-20 | 2014-06-16 | Horiba Ltd. | Fuel consumption measuring device |
| DE202014006185U1 (en) | 2013-08-12 | 2014-11-26 | Horiba Ltd. | Fuel consumption calculation unit, fuel consumption calculation program, fuel consumption meter and exhaust gas meter |
| US9453751B2 (en) | 2013-05-22 | 2016-09-27 | Horiba, Ltd. | Fuel consumption measuring instrument |
| CN109883495A (en) * | 2019-01-31 | 2019-06-14 | 山东理工大学 | A kind of engine fuel consumption rate calculation method based on Carbon balance principle |
-
1989
- 1989-03-08 JP JP5689289A patent/JPH02234021A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155962A (en) * | 2011-03-04 | 2011-08-17 | 奇瑞汽车股份有限公司 | System and method for accurately measuring instantaneous oil consumption value of automobile |
| US9453751B2 (en) | 2013-05-22 | 2016-09-27 | Horiba, Ltd. | Fuel consumption measuring instrument |
| DE202014006185U1 (en) | 2013-08-12 | 2014-11-26 | Horiba Ltd. | Fuel consumption calculation unit, fuel consumption calculation program, fuel consumption meter and exhaust gas meter |
| US10132225B2 (en) | 2013-08-12 | 2018-11-20 | Horiba, Ltd. | Fuel consumption calculation unit, fuel consumption measuring apparatus, and exhaust gas measuring apparatus |
| DE202014004223U1 (en) | 2014-05-20 | 2014-06-16 | Horiba Ltd. | Fuel consumption measuring device |
| CN109883495A (en) * | 2019-01-31 | 2019-06-14 | 山东理工大学 | A kind of engine fuel consumption rate calculation method based on Carbon balance principle |
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