CN203587155U - Gas car gas consumption test system for vehicle road test - Google Patents
Gas car gas consumption test system for vehicle road test Download PDFInfo
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- CN203587155U CN203587155U CN201320828531.0U CN201320828531U CN203587155U CN 203587155 U CN203587155 U CN 203587155U CN 201320828531 U CN201320828531 U CN 201320828531U CN 203587155 U CN203587155 U CN 203587155U
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Abstract
The utility model discloses a gas car gas consumption test system for vehicle road test, wherein a mass air flow sensor is connected with a flow transmitter, the flow transmitter outputs signals to a data acquisition and display module, a speed sensor outputs the signals to the data acquisition and display module, the data acquisition and display module is connected with a personal computer (PC) machine to achieve data communication, and an accumulator supplies power for the speed sensor, the data acquisition and display module and the PC machine. The gas car gas consumption test system for vehicle road test has high accuracy and sensitivity, excellent maneuverability, time synchronism and dynamic response coherence.
Description
Technical field
The utility model relates to a kind of test macro of gas automotive fuel wastage, more specifically, relates to a kind of vehicle mounted road test fuel gas vehicle gas consumption test macro.
Background technology
Gas combustion automobile refers to that take rock gas and liquefied petroleum gas (LPG) replaces the automobile that traditional vapour, diesel oil are fuel.Along with the composition characteristic of development and the combustion gas self of gas engine technology, gas engine more easily meets state's V emission request compared with conventional engines; In conjunction with the good economy of Gas Market cost and gas engine, cause the operation cost of fuel gas vehicle more cheap compared with the operation cost of conventional truck; Aspect the new product market access, combustion gas commerial vehicle is without the Fuel Consumption test of carrying out the commerial vehicle of Ministry of Communications and Ministry of Industry and Information's management and control, and product announcement and the more traditional commerial vehicle of card for operating approval are more quick; In conjunction with the air regime of the serious haze in national some areas, the Developing Extension of fuel gas vehicle is all encouraged in each province, area, city from the perspective of policy.
Gas combustion automobile can solve the problem that China's vehicle fuel is in short supply and adapt to the general layout that new forms of energy change, can reach for improving the ecological environment good environmental protection effect again, cause the fuel economy of fuel gas vehicle and the objective and accurate Journal of Sex Research of method of testing thereof to cause the extensive concern of industry.
Existing standard GB/T/T 29125-2012 < < automobile with compressed natural gas consumption trial method > > separate provision two kinds of fuel gas vehicle gas consumption method of testings and two kinds of test operation conditions.
Two kinds of fuel gas vehicle gas consumption method of testings are respectively the direct method of measurement and the indirect method of measurement.The direct method of measurement is that cross-over connection combustion gas gas consumption instrument is directly measured amount of consumed gas in real time in the gas supply system pipeline of fuel gas vehicle, the indirect method of measurement is carbon balance method, utilize the exhaust emissions transient data of emission test apparatus measures gas combustion automobile, according to carbon balance method, calculate the amount of consumed gas of revising out motor vehicle, the variation of measurement environment, testing tool error and calculating modification method all produce considerable influence to measurement result.
Two kinds of test operation conditions are respectively operating condition and the operating condition based on the test of chassis interior dynamometer machine based on car load road test.Based on car load road test, be to carry out on proving ground maybe can represent the actual road surface of typical condition, can be more true rationally, the actual operating mode of the laminating vehicle of objective science, based on chassis interior dynamometer machine, test is that the driving cycle according to respective country standard regulation carries out on chassis interior dynamometer machine, is that test vehicle is in the reproduction on true road surface.Light-duty vehicle and heavy-duty car move on chassis dynamometer according to the operating mode of stipulating in GB/T 19233-2008 < < light-duty vehicle consumption trial method > > and GB 27840-2011 < < heavy type commercial vehicle Fuel Consumption method of testing > > respectively.
Current domestic developing still in the starting stage the test method of gas automotive fuel wastage and checkout equipment thereof, also do not have a whole set of to meet amount of consumed gas checkout equipment unification of the motherland standard, specialty, amount of consumed gas correlation test is that specialized spare part manufacturing enterprise implements according to s own situation, measuring error is larger, has significant limitation.The direct method of measurement based on car load road test more objective, reflect in real time the amount of consumed gas of vehicle under real road operating mode scientifically and rationally, and the impact that is not subject to measurement environment and calculates modification method, is more easily accepted by industry.
In conjunction with vehicle mounted road, test, analyzing domestic and international gas flow measurement method, on the basis of fuel and fuel gas vehicle own characteristic and testing apparatus thereof, select to determine that take Coriolis low-pressure type mass flow sensor and vehicle GPS speed pickup is main body, based on Modbus standard serial port communication protocol, develop a set of synchronousness and dynamic response correlativity is good, have compared with high maneuverability, accuracy and level of integrated system are high, simple operation, friendly interface, can realize the fuel gas vehicle gas consumption test macro of man-machine interaction, can meet CNG vehicle, the gas consumption test request of LNG vehicle and LPG vehicle.
Summary of the invention
The utility model provides a kind of vehicle mounted road test fuel gas vehicle gas consumption test macro, has good height integration.
A fuel gas vehicle gas consumption test macro for vehicle mounted road test, comprises accumulator; Mass flow sensor connection traffic transmitter, flow transmitter outputs to data acquisition and display module by signal; Speed pickup outputs to described data acquisition and display module by signal; Described data acquisition and display module are connected with PC, realize data communication; Accumulator is speed pickup, data acquisition and display module and PC power supply.
As further preferred, described mass flow sensor cross-over connection is fixed on LNG or CNG vehicle supply air line.
As further preferred, described data acquisition and display module are connected with PC by RS-485 or USB converter.
As further preferred, mass flow sensor adopts Coriolis low-pressure type CMF025 type mass flow sensor; Flow transmitter adopts Rosemount RFT9739 type flow transmitter.
As further preferred, flow transmitter outputs to data acquisition and display module by 4-20mA standard analog signal passage by signal.
As further preferred, described speed pickup adopts YT-1000 type GPS speed pickup; The signal of speed pickup collection sends data acquisition and display module to by 1-5V standard analog signal passage after D/A switch.
As further preferably, in the integrated gas consumption instrument of described mass flow sensor and flow transmitter cabinet, at gas consumption instrument chassis base, add rubber blanket.
As further preferred, accumulator connects inverter, the collection of inverter connection data and display module and PC.
As further preferably, described mass flow sensor is by the cross-over connection of constant worm pich sealing adaptor fixedly on supply air line.
As further preferred, data acquisition and display module also comprise 5 pin aviation plugs and 3 pin aviation plugs.
Beneficial effect: realize actual road test integrated with the height of mass flow sensor, flow transmitter, vehicle GPS speed pickup, data acquisition unit, Multifunctional liquid crystal display instrument, PC host computer in fuel gas vehicle gas consumption test macro; Possesses pinpoint accuracy and sensitivity, good maneuverability, synchronousness and dynamic response correlativity; Adopt 4-20mA standard analog signal passage that mass flow sensor is connected with Multifunctional liquid crystal display instrument by 5 pin aviation plugs, adopt 1-5V standard analog signal passage that vehicle GPS speed pickup is connected with Multifunctional liquid crystal display instrument by 3 pin aviation plugs, by correlated quality flow sensor measurement parameter and speed of a motor vehicle parameter in Displaying Meter simultaneous display.
Accompanying drawing explanation
Fig. 1 is system hardware structure block diagram.
1:CMF025 type mass flow sensor; 2:RFT9739 type flow variator.
3:YT-1000 type GPS speed pickup; 4: Multifunctional liquid crystal display instrument (integrated data collector).
5:RS-485/USB converter; 6: upper PC.
7: Vehicular accumulator cell (12V direct current); 8:12V DC/220 AC inverter.
Embodiment
Below in conjunction with system hardware structure block diagram, vehicle mounted road test of the present utility model is described in detail with fuel gas vehicle gas consumption test macro.
As shown in Figure 1, fuel gas vehicle gas consumption test macro for vehicle mounted road test of the present utility model, comprises gas flow measurement module, speed of a motor vehicle displacement measurement module, data acquisition and display module, communication interface modular converter, monitoring memory module and equipment supply module.
Gas flow measurement module; This module comprises mass flow sensor 1, flow transmitter, as a kind of preferred, can select Coriolis low-pressure type CMF025 type mass flow sensor and Rosemount RFT9739 type flow transmitter; The two by nine kinds of needles communication interface, highly integrated, compactness be fixedly mounted in independent design, base adds in the gas consumption instrument cabinet of rubber blanket, this cabinet volume is little, lightweight, can cushion to greatest extent the body vibrations causing due to road roughness in the surge of fuel gas supply pipeline and vehicle mounted road process of the test.
Flow sensor 1 detects the flow signal of combustion gas, temperature signal, integrated flux signal, and all associated fluid signal and systems status signals are transferred to flow transmitter 2 by communication interface, flow transmitter 2 carries out reception and the processing of input signal and calculates associated arguments value (as mass rate, cumulative mass rate, gas temperature, gas density etc.) also by 4-20mA standard analog signal passage, according to respective physical aspect and communication protocol stipulations, measurement of correlation parameter is transferred to Multifunctional liquid crystal display instrument 4(integrated data collector by 5 pin aviation plugs) carry out data monitoring demonstration.
Speed of a motor vehicle displacement measurement module, the main operating speed sensor of this module 3(is as a kind of preferred, can select YT-1000 type GPS speed pickup) by counting/frequency input mode, measure in real time the signals collecting of speed of operation and displacement and export in the mode of pulse signal, after D/A switch, pass through 1-5V standard analog signal passage, according to respective physical aspect and communication protocol stipulations, measurement of correlation parameter is transferred to Multifunctional liquid crystal display instrument 4(integrated data collector by 3 pin aviation plugs) carry out data monitoring demonstration, speed pickup 3 is by Vehicular accumulator cell (12V direct current) power supply simultaneously.
Data acquisition and display module; This module is mainly used Multifunctional liquid crystal display instrument 4(integrated data collector) carry out Real-time Collection and the monitoring display of signal, Real-time Collection function carries data acquisition unit by module and completes, and monitoring display function carries liquid crystal display apparatus by module and completes.Module expansion has 5 pin 4-20mA standard analog signal access ports, 3 pin 1-5V standard analog signal access ports, be respectively used to receive gas meavuremeut signal and speed of a motor vehicle displacement signal, expand RS-485 serial port communicating protocol output port, the data communication between realization and upper PC 6 simultaneously.
Communication interface modular converter, Multifunctional liquid crystal display instrument 4(integrated data collector) adopt general RS-232 or RS-485 serial port communicating protocol constructing local network network, but due to RS-232 communication, to have transmission range short, the defects such as antijamming capability is weak, consider vehicle mounted road test, particularly heavy type commercial vehicle assembles high-power engine, generator and relevant large-scale electricity consumption utility appliance, starting, in operational process, produce powerful electromagnetic interference (EMI), and while carrying out at the scene equipment installation, inevitably there will be testing sensor, Multifunctional liquid crystal display instrument 4(integrated data collector) and the problem of the softening decay of the signal causing because data transmission distance is long between upper PC 6 threes, based on above-mentioned consideration, adopt RS-485 serial port communicating protocol, and upper PC generally uses usb data interface, therefore must use RS-485/USB converter 5 to realize upper PC 6 and Multifunctional liquid crystal display instrument 4(integrated data collector) between signal and communication.
In state of the art, there is data memory module; As a kind of preferred, by improving, in system, can also comprise monitoring memory module; This module has the functions such as real-time monitoring and data storage, the main upper PC 6 and communicating by letter and controlling software based on Modbus standard serial port communication protocol of using, realize the communicating by letter of host computer and system hardware equipment room, monitoring and storage, EXCEL office software platform based in Windows XP system, man-machine interaction realizes the test evaluation to the fuel gas vehicle gas meavuremeut parameter under specific operation (mass rate, temperature, mass accumulation, speed of operation, operating range, hundred kilometers of amount of consumed gas).As further preferably, can also add and start the functions such as reset that stop, returning to zero.
Equipment supply module; It is YT-1000 type GPS speed pickup 3(12V direct current supply that the test of this vehicle mounted road need have movable power source with fuel gas vehicle gas consumption test macro), Multifunctional liquid crystal display instrument 4(integrated data collector) (220V Alternating Current Power Supply), upper PC 6(220V Alternating Current Power Supply) power continually and steadily.This module comprises Vehicular accumulator cell (12V direct current) 7 and 12V DC/220 AC inverter 8.Vehicular accumulator cell 7(12V direct current) can be directly 3 power supplies of YT-1000 type GPS speed pickup, Multifunctional liquid crystal display instrument (integrated data collector) 4 and upper PC 6 all need 220V alternating current, so need to use 12V DC/220 AC inverter 8 to carry out voltage transitions.
The test macro course of work for CNG vehicle:
Selected gas flow sensor is low-pressure type Coriolis mass flow sensor, when carrying out the test of CNG vehicle gas consumption, by adopting 3/4-16UNF or 7/8-14UNF American Standard constant worm pich sealing adaptor that low-pressure type Coriolis mass flow sensor is connected across on low pressure filter cleaner supply air line afterwards.CNG vehicle is in vehicle mounted road process of the test, and the CNG combustion gas low-pressure type Coriolis mass flow sensor of flowing through after by relevant pressure-reduced and-regulated, filtering and cleaning devices such as CNG gas-holder, the meticulous filter cleaner of high pressure, high-pressure solenoid valve, high pressure relief device, low pressure filter cleaners enters engine agitator.After driving cycle is stable, start combustion gas test macro, low-pressure type Coriolis mass flow sensor is by the flow signal of combustion gas, temperature signal, integrated flux signal, and all associated fluid signal and systems status signals are transferred to flow transmitter by communication interface, transmitter carries out reception and the processing of input signal and calculates associated arguments value (as mass rate, cumulative mass rate, gas temperature, gas density etc.) also by 4-20mA standard analog signal passage, according to respective physical aspect and communication protocol stipulations, measurement of correlation parameter is transferred to Multifunctional liquid crystal display instrument by 5 pin aviation plugs and carries out data monitoring demonstration.
Meanwhile, YT-1000 type GPS speed pickup is measured in real time the signals collecting of speed of operation and displacement and is exported in the mode of pulse signal by counting/frequency input mode, after D/A switch, pass through 1-5V standard analog signal passage, according to respective physical aspect and communication protocol stipulations, measurement of correlation parameter is transferred to Multifunctional liquid crystal display instrument by 3 pin aviation plugs and carries out data monitoring demonstration.
Use upper PC and communicating by letter and controlling software based on Modbus standard serial port communication protocol, realize the communicating by letter of host computer and system hardware equipment room, monitoring and storage, EXCEL office software platform based in Windows XP system, the post processing operations program of exploitation fuel gas vehicle gas consumption test, man-machine interaction realizes the test evaluation to the fuel gas vehicle gas meavuremeut parameter under specific operation (mass rate, temperature, mass accumulation, speed of operation, operating range, hundred kilometers of amount of consumed gas).
The test macro course of work for LNG vehicle:
When carrying out the test of LNG vehicle gas consumption, still by adopting 3/4-16UNF or 7/8-14UNF American Standard constant worm pich sealing adaptor that low-pressure type Coriolis mass flow sensor is connected across on voltage stabilizer supply air line afterwards.LNG vehicle is in vehicle mounted road process of the test, LNG combustion gas becomes CNG combustion gas after by relevant vaporization voltage stabilizing, filtering and cleaning devices such as LNG gas cylinder, carburetor, pressure surge tank, low pressure filter cleaner, low-voltage solenoid valve, voltage stabilizers, and the low-pressure type Coriolis mass flow sensor of flowing through enters engine agitator.Follow-up test system work process is same as described above.
A kind of vehicle mounted road test uses the fuel gas vehicle related all kinds of onboard sensors of gas consumption test macro and specification of equipment model and measurement parameter as shown in table 1 below.
Table 1 sensor and specification of equipment model and measurement parameter
This embodiment just embodies the preferred special case of the utility model spirit, and those skilled in the art completely can be according to the purport of the utility model patent, and flexible in addition, to reach best implementation result.The utility model is modified or is equal to replacement, and do not depart from the spirit and scope of the utility model patent, it all should be encompassed in the middle of the claim scope of the utility model patent.
Claims (10)
1. a fuel gas vehicle gas consumption test macro for vehicle mounted road test, comprises accumulator; It is characterized in that: mass flow sensor connection traffic transmitter, flow transmitter outputs to data acquisition and display module by signal; Speed pickup outputs to described data acquisition and display module by signal; Described data acquisition and display module are connected with PC, realize data communication; Accumulator is speed pickup, data acquisition and display module and PC power supply.
2. fuel gas vehicle gas consumption test macro according to claim 1, is characterized in that: described mass flow sensor cross-over connection is fixed on LNG or CNG vehicle supply air line.
3. fuel gas vehicle gas consumption test macro according to claim 1, is characterized in that: described data acquisition and display module are connected with PC by RS-485 or USB converter.
4. according to the fuel gas vehicle gas consumption test macro described in claim 1,2 or 3, it is characterized in that: mass flow sensor adopts low-pressure type Coriolis CMF025 type mass flow sensor; Flow transmitter adopts Rosemount RFT9739 type flow transmitter.
5. fuel gas vehicle gas consumption test macro according to claim 1, is characterized in that: flow transmitter outputs to data acquisition and display module by 4-20mA standard analog signal passage by signal.
6. fuel gas vehicle gas consumption test macro according to claim 1, is characterized in that: described speed pickup adopts YT-1000 type GPS speed pickup; The signal of speed pickup collection sends data acquisition and display module to by 1-5V standard analog signal passage after D/A switch.
7. fuel gas vehicle gas consumption test macro according to claim 1, is characterized in that: in the integrated gas consumption instrument of described mass flow sensor and flow transmitter cabinet, at gas consumption instrument chassis base, add rubber blanket.
8. fuel gas vehicle gas consumption test macro according to claim 1, is characterized in that: accumulator connects inverter, the collection of inverter connection data and display module and PC.
9. fuel gas vehicle gas consumption test macro according to claim 2, is characterized in that: described mass flow sensor is by the cross-over connection of constant worm pich sealing adaptor fixedly on supply air line.
10. according to the fuel gas vehicle gas consumption test macro one of claim 1-3 Suo Shu, it is characterized in that: data acquisition and display module also comprise 5 pin aviation plugs and 3 pin aviation plugs.
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| CN201320828531.0U CN203587155U (en) | 2013-12-16 | 2013-12-16 | Gas car gas consumption test system for vehicle road test |
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| CN201320828531.0U CN203587155U (en) | 2013-12-16 | 2013-12-16 | Gas car gas consumption test system for vehicle road test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643946A (en) * | 2017-01-20 | 2017-05-10 | 长安大学 | Detection system and method for fuel consumption of CNG fuel urban bus |
| CN110987473A (en) * | 2019-12-06 | 2020-04-10 | 辽宁龙马安泰网络技术有限责任公司 | Distance correction method for transient fuel or waste gas of automobile bench test |
-
2013
- 2013-12-16 CN CN201320828531.0U patent/CN203587155U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643946A (en) * | 2017-01-20 | 2017-05-10 | 长安大学 | Detection system and method for fuel consumption of CNG fuel urban bus |
| CN106643946B (en) * | 2017-01-20 | 2023-08-29 | 长安大学 | CNG fuel city bus fuel consumption detection system and method |
| CN110987473A (en) * | 2019-12-06 | 2020-04-10 | 辽宁龙马安泰网络技术有限责任公司 | Distance correction method for transient fuel or waste gas of automobile bench test |
| CN110987473B (en) * | 2019-12-06 | 2021-04-20 | 辽宁龙马安泰网络技术有限责任公司 | Distance correction method for transient fuel or waste gas of automobile bench test |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20141216 |
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| EXPY | Termination of patent right or utility model |