CN201429436Y - Car oil consumption detecting system - Google Patents
Car oil consumption detecting system Download PDFInfo
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- CN201429436Y CN201429436Y CN 200920109502 CN200920109502U CN201429436Y CN 201429436 Y CN201429436 Y CN 201429436Y CN 200920109502 CN200920109502 CN 200920109502 CN 200920109502 U CN200920109502 U CN 200920109502U CN 201429436 Y CN201429436 Y CN 201429436Y
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Abstract
The utility model discloses a car oil consumption detecting system, which relates to the technical field of car detection and solves the technical problems of the prior positive displacement car thatthe operation of the oil consumption detection method is complex, the detection cycle is long, the cost of the prior oil consumption detection device with constant volume sampling in a carbon balancemethod is high, and the accuracy of other oil consumption detection devices in the carbon balance method is low. The car oil consumption detecting system comprises a main-control module, a carbonaceous gas quality measurement system, and a chassis dynamometer system, the main-control module is a singlechip, the chassis dynamometer system is used for loading control of the car, and measures the rotational speed of a wheel after starting the car; and the main-control module is used for controlling the measurement of the carbonaceous gas quality measurement system and adjusts the density and flowrate of various gases in a dilute exhaust, and reckons the oil consumption according to the flow rate of the adjusted dilute exhaust, the density of carbonaceous gas in the dilute exhaust, and the rotational speed of the wheel. The car oil consumption detecting system is applied in the oil consumption detection of the car.
Description
Technical field
The utility model relates to the vehicle testing technique field, is specifically related to a kind of automobile fuel consumption detection system.
Background technology
At present, detect the methods that adopt dismounting oil pipes serial connection fuel consumption meters for automobile fuel consumption, the method complicated operation, detection time are long, owing to carrying out the engine oil tube dismounting, also can cause damage to oil circuit sometimes more.
The another kind of method that automobile fuel consumption detects is a carbon balance method oil consumption detection method, this method is at home and abroad all carried out, it calculates the vehicle fuel consume amount by the quality of carbon monoxide, carbon dioxide, hydrocarbon middle carbon in the measured automobiles exhaust according to the carbon mass conservation before and after the gasoline combustion.
External constant volume samapling (the Constant Volume Sampler that has developed based on carbon balance method, abbreviate as: CVS) oil consumption checkout equipment, but because compressor flow relative fixed, can only be used for detecting the oil consumption of automobile with small output volumn, and owing to adopt the constant volume samapling mode, so volume is big, the cost height, only be suitable for experiment and detect, can not widespread adoption detect in vehicle in use, the scope of application is narrow.
The domestic oil consumption checkout equipment of also once developing the Carbon balance principle of simplifying the CVS system, but owing to the different reasons of detection method such as the selection of sensor and dilution flow rate control cause measuring accuracy low.
In addition, carbon current balancing method fuel consumption detection system all adopts stand-alone computer to carry out data acquisition and processing (DAP), and the Dynamometer Control System in the chassis dynamometer system itself has comprised stand-alone computer, so just cause system cost to increase, and the complexity of system can reduce the reliability of system.
The utility model content
The utility model embodiment provides a kind of automobile fuel consumption detection system, has solved existing positive displacement automobile fuel consumption detection method complicated operation, the high and low technical matters of other Carbon balance oil consumption checkout equipment precision of the long and existing carbon balance method constant volume samapling oil consumption checkout equipment cost of sense cycle.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
This automobile fuel consumption detection system comprises main control module, carbonaceous gas mass measurement system and chassis dynamometer system, and described main control module is a single-chip microcomputer, wherein:
Described chassis dynamometer system is used for automobile is carried out Loading Control, and measured automobiles starts the velocity of rotation of wheel afterwards;
Described main control module is used to control the concentration and the flow of all gases in described carbonaceous gas mass measurement system measurement, the described diluted exhaust of adjustment, and carries out oil consumption calculating according to the concentration of carbonaceous gas in the flow of adjusting the described diluted exhaust in back, the described diluted exhaust and the velocity of rotation of described wheel.
Further, described single-chip microcomputer is 51 series monolithics.
Further, the model of described single-chip microcomputer is 89C51.
Further, described chassis dynamometer system comprises chassis dynamometer and Dynamometer Control System, and described Dynamometer Control System links to each other with described main control module and described chassis dynamometer respectively, wherein:
Described Dynamometer Control System is used for obtaining to described main control module transmission warning order, from described main control module the oil consumption result of calculation of described automobile;
Described main control module can begin to prepare by the described carbonaceous gas mass measurement system of control after obtaining described warning order, and after described carbonaceous gas mass measurement system is prepared to finish described preparation end signal is sent to described Dynamometer Control System;
Described Dynamometer Control System can alert start described automobile after receiving described preparation end signal, and controls the described chassis dynamometer measured automobiles startup velocity of rotation of wheel afterwards.
Further, described carbonaceous gas mass measurement system comprises flowmeter, frequency converter, blower fan and gas concentration measurement sensor, wherein:
The air inlet of described blower fan links to each other by the floss hole of flexible pipe with the exhaust of described automobile;
Described frequency converter is used to control the amount that described blower fan sucks air, dilutes described exhaust by described air;
Described flowmeter links to each other with the air outlet of described blower fan, is used to measure the flow of the described diluted exhaust after described blower fan dilutes;
Described gas concentration measurement sensor is used to measure the concentration of the interior carbonaceous gas of described diluted exhaust after described blower fan dilutes, and measurement data is imported described main control module;
Described main control module is used to control described frequency converter, and the amount of the described air that sucks by the described blower fan of described Frequency Converter Control, controls concentration of carbon dioxide in the diluted exhaust after the described blower fan dilution.
Further, described flowmeter comprises the housing that offers air intake opening and gas outlet, be located at turbine assembly in the described housing, be located at magnetoresistance signal sensor, pressure transducer, the temperature sensor on the described housing and be fixed on integrating instrument on the housing,
Described integrating instrument comprises signal amplification module, A/D modular converter and data processing module, wherein:
Be input to described data processing module behind the signal shaping and filtering of described magnetoresistance signal sensor;
Described pressure sensor signal and described temperature sensor signal amplify the back by the described data processing module of described A/D modular converter conversion back input by described signal amplification module;
Described data processing module handle, calculate input in it signal and or data after, the result after handling, calculating is imported described main control module;
Described gas concentration measurement sensor is got gas by stopple coupon pump in described housing and is carried out measurement of concetration.
Further, described signal amplification module is a dual operational amplifier, and described data processing module is a single-chip microcomputer, and described A/D modular converter is 8 A/D converters.
Further, described main control module is adjusted into concentration of carbon dioxide value in the described diluted exhaust after the described blower fan dilution between 0.5%～5% by the described frequency converter of control.
Further, described main control module also is connected with the serial ports expansion chip, and described serial ports expansion chip is used to main control module to expand four serial ports that link to each other with described frequency converter, described flowmeter, described gas concentration measurement sensor and described Dynamometer Control System respectively.
Further, the model of described serial ports expansion chip is GM8125.
Compared with prior art, technique scheme that the utility model provides has following advantage:
Because main control module can be controlled the concentration and the flow of the measurement of carbonaceous gas mass measurement system, the interior all gases of adjustment diluted exhaust in the automobile fuel consumption detection system provided by the utility model, and carry out oil consumption calculating according to the concentration of carbonaceous gas in the flow of adjusting the back diluted exhaust, the diluted exhaust and the velocity of rotation of wheel;
Compare with existing positive displacement automobile fuel consumption detection method, need not the motor car engine oil pipe is carried out dismounting, not only can not cause any damage to oil circuit, and save time, be convenient to operating personnel's operation, so solved the technical matters of existing positive displacement automobile fuel consumption instrument complicated operation, sense cycle length;
Comparing the utility model main control module with existing carbon balance method fuel consumption detection system is single-chip microcomputer, with low cost and the total system structure is more simple, so solved existing carbon balance method fuel consumption detection system cost technical problems of high, adopt the high precision turbine flow to take into account the measuring method of adjusting diluted exhaust concentration, so improved the precision of carbon balance method fuel consumption detection system, and then also solved the low technical matters of existing other Carbon balance oil consumption checkout equipment precision.
Description of drawings
Fig. 1 is the structural representation of the automobile fuel consumption detection system that embodiment of the present utility model provided;
Fig. 2 is the partial schematic sectional view of turbo flow meter in the automobile fuel consumption detection system that embodiment of the present utility model provided;
Fig. 3 is the annexation synoptic diagram of main control module in the automobile fuel consumption detection system that embodiment of the present utility model provided and serial ports expansion chip;
Fig. 4 is the interface principle figure of integrating instrument in the automobile fuel consumption detection system that embodiment of the present utility model provided;
Fig. 5 is the main schematic flow sheet of the method for operating of the automobile fuel consumption detection system that embodiment of the present utility model provided.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described in detail.
The utility model embodiment provides that a kind of measuring error is little, cost is lower and the scope of application automobile fuel consumption detection system and method for operating thereof more widely.
As shown in Figure 1, the automobile fuel consumption detection system that the utility model embodiment is provided comprises main control module 1, carbonaceous gas mass measurement system 2 and chassis dynamometer system 3, and main control module 1 is a single-chip microcomputer as shown in Figure 3, wherein:
Chassis dynamometer system 3 is used for automobile 4 is carried out Loading Control, and measured automobiles 4 starts the velocity of rotation of wheel 40 afterwards;
Main control module 1 is used to control the concentration and the flow of all gases in 2 measurements of carbonaceous gas mass measurement system, the adjustment diluted exhaust, and carries out oil consumption calculating according to the concentration of carbonaceous gas in the flow of adjusting the back diluted exhaust, the diluted exhaust and the velocity of rotation of wheel 40.
Because main control module 1 can be controlled the concentration and the flow of 2 measurements of carbonaceous gas mass measurement system, the interior all gases of adjustment diluted exhaust in the automobile fuel consumption detection system provided by the utility model, and carry out oil consumption calculating according to the concentration of carbonaceous gas in the flow of adjusting the back diluted exhaust, the diluted exhaust and the velocity of rotation of wheel 40;
Compare with existing automobile fuel consumption detection method, need not the motor car engine oil pipe is carried out dismounting, not only can not cause any damage to oil circuit, and save time, be convenient to operating personnel's operation, so solved the technical matters of existing positive displacement automobile fuel consumption instrument complicated operation, sense cycle length;
Compare the utility model main control module 1 with existing carbon balance method fuel consumption detection system and be single-chip microcomputer, with low cost and the total system structure is more simple, so solved existing carbon balance method fuel consumption detection system cost technical problems of high, adopt the high precision turbine flow to take into account the measuring method of adjusting diluted exhaust concentration, so improved the precision of carbon balance method fuel consumption detection system.
Single-chip microcomputer is 51 series monolithics in the present embodiment.The model of single-chip microcomputer is preferably 89C51.It is relatively good that 51 series monolithic performances can satisfy the needs and the reliability of automobile fuel consumption detection system provided by the utility model.
Chassis dynamometer system 3 comprises chassis dynamometer 30 and Dynamometer Control System 31, and Dynamometer Control System 31 links to each other with main control module 1 and chassis dynamometer 30 respectively, wherein:
Main control module 1 obtains after the warning order and can begin to prepare by control carbonaceous gas mass measurement system 2, and will prepare end signal be sent to Dynamometer Control System 31 after carbonaceous gas mass measurement system 2 is prepared to finish;
Carbonaceous gas mass measurement system 2 comprises flowmeter 22, frequency converter 25, blower fan 20 and gas concentration measurement sensor 24 in the present embodiment, wherein:
The air inlet of blower fan 20 links to each other with the floss hole of the exhaust of automobile 4 by flexible pipe 21;
Gas concentration measurement sensor 24 is used to measure the concentration of all gases in the exhaust after blower fan 20 dilutions, and data are imported main control module 1;
Main control module 1 also is used for control of conversion device 25, and controls the amount of blower fans 20 inhaled airs by frequency converter 25, thereby controls the interior concentration of carbon dioxide of exhaust after blower fan 20 dilutions.
As shown in Figure 3, as further improvement of the utility model, main control module 1 is adopted in the present embodiment single-chip microcomputer adopts serial ports expansion chip GM8125 to expand four serial ports, links to each other with as shown in Figure 1 frequency converter 25, flowmeter 22, gas concentration measurement sensor 24 and Dynamometer Control System 31 respectively.Serial communication stability is relatively good.
As shown in Figures 2 and 3, flowmeter 22 is a turbo flow meter, it comprises the housing 16 that offers air intake opening 10 and gas outlet 11, be located at turbine assembly 17 in the housing 16, be located at magnetoresistance signal sensor 12, pressure transducer 15, the temperature sensor 13 on the housing 16 and be fixed on integrating instrument 14 on the housing 16
Integrating instrument 14 comprises signal amplification module, A/D modular converter and data processing module, wherein:
The signal of magnetoresistance signal sensor 12 is input to data processing module after by the CD40106 shaping filter;
Data processing module handle, calculate input in it signal and or data after, the result after handling, calculating is imported main control module 1;
Gas concentration measurement sensor 24 is got gas by stopple coupon 23 pump in housing 16 and is carried out measurement of concetration.
See also Fig. 4, the signal amplification module is a dual operational amplifier, is preferably the TL062 chip, and data processing module is a single-chip microcomputer, and the A/D modular converter is 8 A/D converters, is preferably the ADC0809 converter.
Main control module 1 is adjusted into concentration of carbon dioxide value in the exhaust after blower fan 20 dilutions between 0.5%～5% by control of conversion device 25, is preferably between 0.5%～3%.The scope of this concentration of carbon dioxide value is obtained for experiment, and the concentration of carbon dioxide value is in this scope, and final oil consumption result precision is than higher.
Main control module 1 can be according to programmed values (span of setting value be between 0.5%～5% in the present embodiment), the concentration of carbon dioxide value compares so that control of conversion device 25 to collecting, program is calculated the acquisition fuel consumption values with the flow value, all gases concentration value and automobile 4 speed that collect, and main control module 1 sends the fuel consumption values of calculating to Dynamometer Control System 31.Adopt the utility model to measure fast automobile 4 oil consumption, the accuracy of detection height is adapted at the comprehensive vehicle performance measuring station and promotes, and energy-saving and emission-reduction are had good facilitation, has higher economic and social benefit.
The detection method of the automobile fuel consumption detection system that the utility model embodiment is provided may further comprise the steps:
3 pairs of automobiles of chassis dynamometer system 4 carry out Loading Control, and measured automobiles 4 starts the velocity of rotation of wheel 40 afterwards;
The concentration and the flow of all gases in the diluted exhaust measured, adjusted to main control module 1 control carbonaceous gas mass measurement system 2, and carry out oil consumption according to the velocity of rotation of the concentration of carbonaceous gas in the flow of adjusting the back diluted exhaust, the diluted exhaust and wheel 40 and calculate.
See also Fig. 5, the method for operating of this automobile fuel consumption detection system specifically may further comprise the steps:
S1, operating personnel are fixed on automobile 4 on the chassis dynamometer 30, Dynamometer Control System 31 sends warning order to main control module 1, main control module 1 obtains that control carbonaceous gas mass measurement system 2 begins to prepare after the warning order, and will prepare end signal be sent to Dynamometer Control System 31 after carbonaceous gas mass measurement system 2 is prepared to finish; Certainly, whether Dynamometer Control System 31 also can be ready to complete by partition time transmission one query order inquiry carbonaceous gas mass measurement system among the step S1.
After S2, Dynamometer Control System 31 received and prepare end signal, alert started automobile 4, and chassis dynamometer 30 is carried out Loading Control, and operating personnel control automobile 4 throttles according to prompting, make the speed of a motor vehicle be stabilized to detection speed;
S3, flexible pipe 21 is set on the exhaust emissions mouth of automobile 4, Dynamometer Control System 31 sends acquisition to main control module 1, main control module 1 is adjusted into concentration of carbon dioxide value in the exhaust after blower fan 20 dilutions between 0.5%～5% by control of conversion device 25;
S4, main control module 1 are given an order for Dynamometer Control System 31 and are pointed out and can begin to detect, and Dynamometer Control System 31 is returned the detection initiation command, and begins to detect wheel 40 speed of automobile 4;
The concentration of all gases in the flow of the exhaust after S5,20 dilutions of 1 continuous acquisition a period of time of main control module (for example: 30 seconds) inner blower and the dilution back diluted exhaust, and carry out oil consumption according to the velocity of rotation of the concentration of carbonaceous gas in the flow of diluted exhaust, the diluted exhaust and wheel 40 and calculate, and result of calculation is sent to chassis dynamometer system 3.
In the method for operating of above-mentioned automobile fuel consumption detection system provided by the utility model, step S3 specifically may further comprise the steps:
S30, automobile 4 velocity-stabilizations point out to the detection speed flexible pipe 21 are set on automobile 4 gas outlets, according to prompting flexible pipe 21 is set on the floss hole of exhaust of automobile 4 after, Dynamometer Control System 31 sends acquisition to main control module 1 by serial ports;
S31, blower fan 20 sucks after with the exhaust of automobile 4 and air mixed by flexible pipe 21, diluents enters turbo flow meter 22 from blower fan 20 air outlets, temperature sensor 13, pressure transducer 15 is measured the temperature and pressure of diluents, magnetoresistance signal sensor 12 is gathered the rotating signal of turbine assembly 17, integrating instrument 14 is according to temperature, pressure and magnetoresistance signal are calculated the gas flow by flowmeter 22, main control module 1 is by serial ports collection mark condition flow value, and the gas concentration measurement system is measured by 23 pairs of diluted exhaust concentration of stopple coupon of straight length top, flowmeter 22 back;
S32, main control module 1 are gathered gas concentration value by serial ports, setting value in gas concentration lwevel value and the program is compared, according to comparative result and present flow rate value, change blower fan 20 rotating speeds by serial ports control of conversion device 25, thereby gas concentration lwevel in the change diluted exhaust, main control module 1 constantly compares setting value in the gas concentration lwevel value that records and the program, regulate frequency converter 25 continuously, it is interior promptly between 0.5%～5% that the gas concentration lwevel value is controlled at the program setting scope the most at last.
Main control module carries out the oil consumption computing method according to the concentration of carbonaceous gas and the velocity of rotation of wheel in the flow of diluted exhaust, the diluted exhaust among the utility model embodiment, can adopt following two formula:
At first, calculate every kind of gas purging quality according to following formula:
In the above-mentioned formula: m
i(unit is: g/s) for gas i discharge quality;
V is that (unit is diluted exhaust standard state down-off: m
3/ h);
ρ
i(unit is: g/L) for gas i standard state lower density;
C
i(unit is: 10 for diluted exhaust gas i concentration
-2);
Then, according to following formula, calculate the carbon gross mass by every kind of gas purging quality and carbon containing percentage, by the oil consumption of carbon Mass Calculation.
In the above-mentioned formula: FC is that (unit is fuel consumption: L/100km);
V is that (unit is: km/h) for average velocity in detection time;
T is that detection time, (unit was: s);
D is that (unit is 15 ℃ of following fuel densitys: g/L);
R is a hydrogen-carbon ratio;
M
COFor CO in detection time the discharge quality gross mass (unit is: g);
M
HC(unit is: g) for HC discharges gross mass in detection time.
The above; it only is embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (10)
1, a kind of automobile fuel consumption detection system is characterized in that: comprise main control module, carbonaceous gas mass measurement system and chassis dynamometer system, described main control module is a single-chip microcomputer, wherein:
Described chassis dynamometer system is used for automobile is carried out Loading Control, and measured automobiles starts the velocity of rotation of wheel afterwards;
Described main control module is used to control concentration and the flow that all gases in the diluted exhaust of described automobile was measured, adjusted to described carbonaceous gas mass measurement system, and carries out oil consumption according to the velocity of rotation of the concentration of carbonaceous gas in the flow of adjusting the described diluted exhaust in back, the described diluted exhaust and described wheel and calculate.
2, automobile fuel consumption detection system according to claim 1 is characterized in that: described single-chip microcomputer is 51 series monolithics.
3, automobile fuel consumption detection system according to claim 2 is characterized in that: the model of described single-chip microcomputer is 89C51.
4, automobile fuel consumption detection system according to claim 1, it is characterized in that: described chassis dynamometer system comprises chassis dynamometer and Dynamometer Control System, described Dynamometer Control System links to each other with described main control module and described chassis dynamometer respectively, wherein:
Described Dynamometer Control System is used for obtaining to described main control module transmission warning order, from described main control module the oil consumption result of calculation of described automobile;
Described main control module can begin to prepare by the described carbonaceous gas mass measurement system of control after obtaining described warning order, and after described carbonaceous gas mass measurement system is prepared to finish described preparation end signal is sent to described Dynamometer Control System;
Described Dynamometer Control System can alert start described automobile after receiving described preparation end signal, and controls described chassis dynamometer and measure the described automobile starting velocity of rotation of wheel afterwards.
5, automobile fuel consumption detection system according to claim 4 is characterized in that: described carbonaceous gas mass measurement system comprises flowmeter, frequency converter, blower fan and gas concentration measurement sensor, wherein:
The air inlet of described blower fan links to each other by the floss hole of flexible pipe with the exhaust of described automobile;
Described frequency converter is used to control the amount that described blower fan sucks air, dilutes described exhaust by described air;
Described flowmeter links to each other with the air outlet of described blower fan, is used to measure the flow of the described diluted exhaust after described blower fan dilutes;
Described gas concentration measurement sensor is used to measure the concentration of the interior carbonaceous gas of described diluted exhaust after described blower fan dilutes, and measurement data is imported described main control module;
Described main control module is used to control described frequency converter, and the amount of the described air that sucks by the described blower fan of described Frequency Converter Control, controls concentration of carbon dioxide in the described diluted exhaust after the described blower fan dilution.
6, automobile fuel consumption detection system according to claim 5, it is characterized in that: described flow is counted turbo flow meter, it comprises the housing that offers air intake opening and gas outlet, be located at turbine assembly in the described housing, be located at magnetoresistance signal sensor, pressure transducer, the temperature sensor on the described housing and be fixed on integrating instrument on the housing
Described integrating instrument comprises signal amplification module, A/D modular converter and data processing module, wherein:
Be input to described data processing module behind the signal shaping and filtering of described magnetoresistance signal sensor;
Described pressure sensor signal and described temperature sensor signal amplify the back by the described data processing module of described A/D modular converter conversion back input by described signal amplification module;
Described data processing module handle, calculate input in it signal and or data after, the result after handling, calculating is imported described main control module;
Described gas concentration measurement sensor is got gas by stopple coupon pump in described housing and is carried out measurement of concetration.
7, automobile fuel consumption detection system according to claim 6 is characterized in that: described signal amplification module is a dual operational amplifier, and described data processing module is a single-chip microcomputer, and described A/D modular converter is 8 A/D converters.
8, according to claim 5 or 6 or 7 described automobile fuel consumption detection systems, it is characterized in that: described main control module is adjusted into concentration of carbon dioxide value in the described diluted exhaust after the described blower fan dilution between 0.5%～5% by the described frequency converter of control.
9, according to claim 5 or 6 or 7 described automobile fuel consumption detection systems, it is characterized in that: described main control module also is connected with the serial ports expansion chip, and described serial ports expansion chip is used to main control module to expand four serial ports that link to each other with described frequency converter, described flowmeter, described gas concentration measurement sensor and described Dynamometer Control System respectively.
10, automobile fuel consumption detection system according to claim 9 is characterized in that: the model of described serial ports expansion chip is GM8125.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920109502 CN201429436Y (en) | 2009-06-29 | 2009-06-29 | Car oil consumption detecting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920109502 CN201429436Y (en) | 2009-06-29 | 2009-06-29 | Car oil consumption detecting system |
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Cited By (4)
| 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 |
| CN102778536A (en) * | 2012-05-31 | 2012-11-14 | 北京理工大学 | Trolley type tail gas carbon dioxide discharge amount detector for automobile and detection method thereof |
| CN104864927A (en) * | 2014-11-24 | 2015-08-26 | 北汽福田汽车股份有限公司 | Method for testing accelerating and idling oil consumption of vehicle |
| CN113340369A (en) * | 2021-04-16 | 2021-09-03 | 中国民用航空适航审定中心 | Signal processing method and device for turbine fuel mass flowmeter |
-
2009
- 2009-06-29 CN CN 200920109502 patent/CN201429436Y/en not_active Expired - Fee Related
Cited By (7)
| 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 |
| CN102155962B (en) * | 2011-03-04 | 2012-08-22 | 奇瑞汽车股份有限公司 | System and method for accurately measuring instantaneous oil consumption value of automobile |
| CN102778536A (en) * | 2012-05-31 | 2012-11-14 | 北京理工大学 | Trolley type tail gas carbon dioxide discharge amount detector for automobile and detection method thereof |
| CN102778536B (en) * | 2012-05-31 | 2014-11-26 | 北京理工大学 | Trolley type tail gas carbon dioxide discharge amount detector for automobile and detection method thereof |
| CN104864927A (en) * | 2014-11-24 | 2015-08-26 | 北汽福田汽车股份有限公司 | Method for testing accelerating and idling oil consumption of vehicle |
| CN113340369A (en) * | 2021-04-16 | 2021-09-03 | 中国民用航空适航审定中心 | Signal processing method and device for turbine fuel mass flowmeter |
| CN113340369B (en) * | 2021-04-16 | 2022-05-03 | 中国民用航空适航审定中心 | Signal processing method and device for turbine fuel mass flowmeter |
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