CN103196674A - Vehicle test environment information collection system in altitude environment - Google Patents
Vehicle test environment information collection system in altitude environment Download PDFInfo
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- CN103196674A CN103196674A CN2013100860639A CN201310086063A CN103196674A CN 103196674 A CN103196674 A CN 103196674A CN 2013100860639 A CN2013100860639 A CN 2013100860639A CN 201310086063 A CN201310086063 A CN 201310086063A CN 103196674 A CN103196674 A CN 103196674A
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- 238000012360 testing method Methods 0.000 title abstract description 40
- 238000005259 measurement Methods 0.000 claims abstract description 29
- 238000004891 communication Methods 0.000 claims abstract description 21
- 230000001133 acceleration Effects 0.000 claims abstract description 7
- 238000012545 processing Methods 0.000 claims description 13
- 238000012546 transfer Methods 0.000 claims description 10
- 239000000498 cooling water Substances 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 4
- 235000019506 cigar Nutrition 0.000 claims description 4
- 238000005286 illumination Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 238000005070 sampling Methods 0.000 description 12
- 238000004364 calculation method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
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Abstract
The invention discloses a vehicle test environment information collection system in an altitude environment, and relates to the field of automotive test equipment. An analog signal acquisition module and a temperature acquisition module are connected with a corresponding sensor in a test environment information measuring unit, the temperature acquisition module is further connected with a corresponding sensor in a vehicle information measuring unit, and vehicle information and test environment information are acquired to achieve measurement of an analog signal and a temperature signal; a wireless data receiving module is connected with a corresponding sensor in a wheel state measuring unit, and tyre pressure and tyre temperature data are acquired; a GPS information measuring unit acquires information of latitude and longitude, vehicles, vehicle acceleration and altitude; and the acquired data are all converted to CAN data packets, and the CAN data packets are transmitted to a mainframe computer through a CAN bus and a USB to CAN communication module. According to the vehicle test environment information collection system in the altitude environment, the number of needed instruments is reduced, operating processes of the instruments are simplified, and operation errors are reduced.
Description
Technical field
The present invention relates to automobile test testing apparatus field, particularly vehicle experimental enviroment information acquisition system under a kind of altitude environment.
Background technology
When automobile carried out different kinds of roads test and chassis dynamometer test under altitude environment, the warm information of water temperature oil of the environmental information of test site (for example: wind speed, air pressure, temperature, humidity, sea level elevation and atmospheric density), motor car engine, the pressure and temperature information of automotive wheel all can produce bigger influence to the resistance in the vehicle traveling process, oil consumption and discharging.Therefore, during automobile test under carrying out altitude environment, it is vital that above-mentioned these information are measured accurately.
When actual tests, in order to measure above-mentioned Test Information, need testing crew to prepare multiple surveying instrument usually, measure atmospheric environment information with atmospherium, the apparatus measures engine water temperature oil temperature with special-purpose monitors wheel condition with the tire pressure measuring instrument; Also need other relevant instrument to come resistance, oil consumption and the emissions data of measured automobiles in addition.
The inventor finds to exist at least in the prior art following shortcoming and defect in realizing process of the present invention:
1) in process of the test, the operation of various instruments has caused very big burden to testing crew, and error rate height, and the test figure record dispersion of test back deal with trouble;
2) because some equipment do not have hold function, and test figure is record manually, cause sampling rate low few with data volume, thereby the test figure precision is reduced, compare with actual conditions, form certain error.And being difficult for the directly information (for example: sea level elevation and atmospheric density) of measurement for some, there is the shortcoming that precision is relatively poor or volume is bigger in surveying instrument in the market, uses difficulty in automobile test.
Summary of the invention
The invention provides vehicle experimental enviroment information acquisition system under a kind of altitude environment, native system has reduced the quantity of instrument, has simplified the instrumentation process, has reduced operate miss, sees for details hereinafter to describe:
Vehicle experimental enviroment information acquisition system under a kind of altitude environment, comprise: the USBtoCAN communication module, described USBtoCAN communication module links to each other with host computer by USB interface, is connected with collection of simulant signal module, wireless data receiver module, temperature collect module and GPS information measurement unit by the CAN bus;
Described collection of simulant signal module is connected the respective sensor in the experimental enviroment information measurement unit with described temperature collect module, described temperature collect module also connects the respective sensor in the information of vehicles measuring unit, and collection vehicle information and experimental enviroment information realize the measurement of simulating signal and temperature signal; Described wireless data receiver module connects the respective sensor in the wheel condition measuring unit, gathers tire pressure tire temperature data; Described GPS information measurement unit pair warp and weft degree, vehicle, vehicle acceleration and sea level elevation information are gathered; The above-mentioned data that collect all are converted to the CAN packet, transfer to described host computer by described CAN bus and described USBtoCAN communication module; Wherein, described collection of simulant signal module, described wireless data receiver module, described temperature collect module and described GPS information measurement unit provide 12V operating voltage by the cigar lighter power connection.
Vehicle experimental enviroment information acquisition system also comprises under the described altitude environment: system data control displayer, described CAN packet by described USBtoCAN communication module and described CAN bus transfer to described system data control displayer.
Described experimental enviroment information measurement unit comprises: the wind transducer, air velocity transducer, barometric pressure sensor, ambient humidity sensor and the intensity of illumination sensor that connect described collection of simulant signal module; The environment temperature sensor that connects described temperature collect module.Described barometric pressure sensor, described ambient humidity sensor and described environment temperature sensor all are arranged in the thermometer screen.
Described information of vehicles measuring unit comprises: the cooling-water temperature transmitter and the oil temperature sensor that connect described temperature collect module.
Described wheel condition measuring unit comprises: be arranged on four tire pressure tire temperature sensor groups on the wheel, described tire pressure tire temperature sensor group is measured tire pressure and the temperature of four tyre in motion in real time, and wheel tyre pressure and tire temperature data are sent to described wireless data receiver module by Wireless transmission mode.
Described GPS information measurement unit comprises: gps antenna and gps data processing module, and described gps antenna is measured the speed of a motor vehicle, distance travelled, vehicle acceleration, longitude and latitude and sea level elevation information, and transfers to described gps data processing module; Described gps data processing module receives information, and is converted into corresponding CAN packet, transfers to described host computer by described CAN bus and described USBtoCAN communication module.
Described collection of simulant signal module, described wireless data receiver module, described temperature collect module and described gps data processing module all are arranged in the shockproof bubble chamber of aluminum on the automobile.
The beneficial effect of technical scheme provided by the invention is: the present invention is by the design of modular structures such as temperature collect module, collection of simulant signal module, wireless data receiver module and gps data processing module, collect information of vehicles, can satisfy the different tests demand of different tests, different user, realize multiduty design object; Native system designs by modular CAN bus structure, increased the adaptability of system to signal with different type, and has extensibility, make this system can measure all required information of test all sidedly, be applicable to multiple different motor road test, the particularly test under altitude environment; In addition, the required test condition information such as weather environment information, GPS information, motor car engine temperature information and tire condition information that comprise when measured automobiles is tested under altitude environment all sidedly, and available measurement information calculates the correlation test conditional information, reduced required instrument quantity, simplify the instrumentation process, reduced operate miss.
Description of drawings
Fig. 1 is the formation block diagram of vehicle experimental enviroment information acquisition system under the altitude environment;
Fig. 2 is the concrete structure synoptic diagram of vehicle experimental enviroment information acquisition system under the altitude environment;
Fig. 3 is the sea level elevation calculation flow chart;
Fig. 4 is the atmospheric density calculation flow chart.
Shown in components listed is listed as follows in the accompanying drawing:
1: host computer; 2: tire pressure tire temperature sensor group;
The 3:USBtoCAN communication module; 4: the shockproof bubble chamber of aluminum;
5: the collection of simulant signal module; 6: the wireless data receiver module;
7: temperature collect module; The 8:GPS data processing module;
9: the vehicle exhaust preprocessor; 10: the cigar lighter power connection;
11: gas pedal; 12: engine;
13: cooling-water temperature transmitter; 14: oil temperature sensor;
15: the system data control displayer; The 16:GPS antenna;
17: wind transducer; 18: air velocity transducer;
19: barometric pressure sensor; 20: the ambient humidity sensor;
21: environment temperature sensor 22: the intensity of illumination sensor;
A, b, c and d: tire pressure tire temperature sensor.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
Referring to Fig. 1 and Fig. 2, vehicle experimental enviroment information acquisition system under a kind of altitude environment, comprise: USBtoCAN communication module 3, USBtoCAN communication module 3 links to each other with host computer 1 by USB interface, is connected with collection of simulant signal module 5, wireless data receiver module 6, temperature collect module 7 and GPS information measurement cells D by the CAN bus;
Collection of simulant signal module 5 is connected the respective sensor among the experimental enviroment information measurement unit A with temperature collect module 7, temperature collect module 7 also connects the respective sensor among the information of vehicles measuring unit B, and collection vehicle information and experimental enviroment information realize the measurement of simulating signal and temperature signal; Wireless data receiver module 6 connects the respective sensor among the wheel condition measuring unit C, gathers tire pressure tire temperature data;
GPS information measurement cells D pair warp and weft degree, vehicle, vehicle acceleration and sea level elevation information are gathered;
The above-mentioned data that collect all are converted to the CAN packet, transfer to host computer 1 by CAN bus and USBtoCAN communication module 3.Wherein, collection of simulant signal module 5, wireless data receiver module 6, temperature collect module 7 and GPS information measurement cells D provide 12V operating voltage by cigar lighter power connection 10.
During specific implementation, collection of simulant signal module 5, wireless data receiver module 6, temperature collect module 7 and GPS information measurement cells D all comprise two CAN FPDP, one is CAN data receiver mouth, one is CAN data sending terminal mouth, thereby can use the CAN bus that a plurality of modules are connected, and be connected to a CAN interface of USBtoCAN communication module 3, form the CAN data channel, realize the exchanges data with collection of simulant signal module 5, wireless data receiver module 6, temperature collect module 7 and GPS information measurement cells D; Another CAN interface of USBtoCAN communication module 3 is connected to the USB port of host computer 1, the exchanges data between realization and the host computer 1.Collection of simulant signal module 5, wireless data receiver module 6, temperature collect module 7 and GPS information measurement cells D all are eight passage acquisition modules.
In the host computer 1 data acquisition software is installed, this data acquisition software calls the driver of USBtoCAN communication module 3, read the various measurement data (being the CAN packet) that USBtoCAN communication module 3 transmits, show or the figure demonstration at the enterprising line number word of computer screen, simultaneously, with the measurement data real-time storage on computer hard disc.For some information of not directly measuring, this data acquisition software can also utilize the related sensor metrical information that has in the system to carry out in line computation, thereby make the testing crew can be more fast and understand the experimental enviroment information of automobile all sidedly, for example, use atmospheric pressure and temperature information to calculate local sea level elevation and atmospheric density in data acquisition software, concrete computing method are seen Fig. 3 and Fig. 4.
Further, in order to allow the driver understand test parameters, test parameters can also be passed through USBtoCAN communication module 3 and CAN bus transfer to system data control displayer 15, like this grasp test parameters that the driver just can be real-time.
During specific implementation, experimental enviroment information measurement unit A is mainly used to measure the environmental parameter of test vehicle, in order to test according to predefined test condition on testing crew confirmed test more accurately opportunity.This measuring unit comprises: these five sensors of the wind transducer 17 of connection mode analog signal acquisition module 5, air velocity transducer 18, barometric pressure sensor 19, ambient humidity sensor 20 and intensity of illumination sensor 22(are all exported simulating signal); The environment temperature sensor 21 that connects temperature collect module 7.All sensors all are fixed on the special portable rack, and this support can be fixed on vehicle roof by base, also can adopt other fixed form, and the embodiment of the invention does not limit this.
Further, in order to make the signal of measuring more accurate, barometric pressure sensor 19, ambient humidity sensor 20 and environment temperature sensor 21 all are arranged in the thermometer screen.
During specific implementation, information of vehicles measuring unit B is mainly used to the temperature signal of measured automobiles engine, be in which kind of state (cold machine or hot machine) in order to understand vehicle in real time, comprise: the cooling-water temperature transmitter 13 and the oil temperature sensor 14 that connect temperature collect module 7.
Wherein, cooling-water temperature transmitter 13 and oil temperature sensor 14 all directly adopt the sensor of former car, only need draw signal to temperature collect module 7, just can measure temperature data in real time.
During specific implementation, wheel condition measuring unit C comprises: for example be arranged on four tire pressure tire temperature sensor group 2(on the wheel: a, b, c and four tire pressure tires of d temperature sensor), tire pressure tire temperature sensor group 2 is measured tire pressure and the temperature of four tyre in motion in real time, and wheel tyre pressure and tire temperature data sent to wireless data receiver module 6 by Wireless transmission mode, thereby make the total system state of monitoring tyres in real time.
Wherein, each tire pressure tire temperature sensor inside comprises a pressure transducer, a temperature sensor and a wireless data sending module, this wireless data sending module can be gathered the data of pressure and temperature sensor, and data are converted to wireless signal, send to wireless data receiver module 6.
During specific implementation, GPS information measurement cells D is mainly used to measure the relevant information of GPS, comprise GPS information such as the speed of a motor vehicle, distance travelled, vehicle acceleration, longitude and latitude and sea level elevation, this unit is made up of gps antenna 16 and gps data processing module 8, gps data processing module 8 is connected on the CAN bus of system, receive GPS information by gps antenna 16, and corresponding GPS information is converted into the CAN packet, then, by CAN bus and USBtoCAN communication module 3 with the CAN data packet transmission to host computer 1.
Further, in order to play shockproof and anti-interference effect, collection of simulant signal module 5, wireless data receiver module 6, temperature collect module 7 and gps data processing module 8 all are arranged in the shockproof bubble chamber 4 of aluminum on the automobile.
This example is owing to having adopted polytype sensor and data acquisition module, to adapt to the sampling rate requirement of unlike signal, so the sample frequency of these sensors and data acquisition module there are differences.Gps signal in the system and temperature signal are owing to change slower, do not need too fast acquisition rate, in the system its sample frequency is set at 10Hz, and the simulating signal in the system itself changes comparatively fast, need high sample frequency, the highest 100Hz that is set at of its sample frequency can adjust at 10Hz it during actual tests as required in the scope of 100Hz.For the test figure that different sample frequency collect, host computer 1 can be benchmark with the high data of sample frequency, by the sampling time all data is integrated.For example: for a sampling time point, the data of having only the high sampling rate signal, the data that do not have corresponding low sampling rate signal, just allow the data of low sampling rate signal of this point equal the data of the last sampling time point of low sampling rate signal in sampling time, thereby make that the data volume of final different sampling rate signals is identical, convenient storage.
Before using this vehicular automobile experiment data acquisition system (DAS), starting vehicle is system's power supply, opens host computer 1 and searches for each submodule automatically, and after search was finished, system will enter automatically to be measured and the data monitoring state.Reset the signals sampling frequency if desired, need to use the software in the host computer 1 that the sample frequency of respective signal is arranged, simultaneously, use that host computer 1 also can carry out that figure shows to data, monitoring and preserving.
Table 1 sensor and data acquisition module model list
During specific implementation, the embodiment of the invention does not limit the model of above-mentioned device, all can as long as can finish any device of above-mentioned functions.
In sum, reduce the quantity of instrument by native system, simplified the instrumentation process, reduced operate miss, satisfied the multiple demand in the practical application.
It will be appreciated by those skilled in the art that accompanying drawing is the synoptic diagram of a preferred embodiment, the invention described above embodiment sequence number does not represent the quality of embodiment just to description.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. vehicle experimental enviroment information acquisition system under the altitude environment, comprise: the USBtoCAN communication module, it is characterized in that, described USBtoCAN communication module links to each other with host computer by USB interface, is connected with collection of simulant signal module, wireless data receiver module, temperature collect module and GPS information measurement unit by the CAN bus;
Described collection of simulant signal module is connected the respective sensor in the experimental enviroment information measurement unit with described temperature collect module, described temperature collect module also connects the respective sensor in the information of vehicles measuring unit, and collection vehicle information and experimental enviroment information realize the measurement of simulating signal and temperature signal; Described wireless data receiver module connects the respective sensor in the wheel condition measuring unit, gathers tire pressure tire temperature data;
Described GPS information measurement unit pair warp and weft degree, vehicle, vehicle acceleration and sea level elevation information are gathered;
The above-mentioned data that collect all are converted to the CAN packet, transfer to described host computer by described CAN bus and described USBtoCAN communication module; Wherein, described collection of simulant signal module, described wireless data receiver module, described temperature collect module and described GPS information measurement unit provide 12V operating voltage by the cigar lighter power connection.
2. vehicle experimental enviroment information acquisition system under a kind of altitude environment according to claim 1 is characterized in that, vehicle experimental enviroment information acquisition system also comprises under the described altitude environment: the system data control displayer,
Described CAN packet by described USBtoCAN communication module and described CAN bus transfer to described system data control displayer.
3. vehicle experimental enviroment information acquisition system under a kind of altitude environment according to claim 1, it is characterized in that described experimental enviroment information measurement unit comprises: the wind transducer, air velocity transducer, barometric pressure sensor, ambient humidity sensor and the intensity of illumination sensor that connect described collection of simulant signal module; The environment temperature sensor that connects described temperature collect module.
4. vehicle experimental enviroment information acquisition system under a kind of altitude environment according to claim 3 is characterized in that, described barometric pressure sensor, described ambient humidity sensor and described environment temperature sensor all are arranged in the thermometer screen.
5. vehicle experimental enviroment information acquisition system under a kind of altitude environment according to claim 1 is characterized in that, described information of vehicles measuring unit comprises: the cooling-water temperature transmitter and the oil temperature sensor that connect described temperature collect module.
6. vehicle experimental enviroment information acquisition system under a kind of altitude environment according to claim 1, it is characterized in that, described wheel condition measuring unit comprises: be arranged on four tire pressure tire temperature sensor groups on the wheel, described tire pressure tire temperature sensor group is measured tire pressure and the temperature of four tyre in motion in real time, and wheel tyre pressure and tire temperature data are sent to described wireless data receiver module by Wireless transmission mode.
7. vehicle experimental enviroment information acquisition system under a kind of altitude environment according to claim 1 is characterized in that, described GPS information measurement unit comprises: gps antenna and gps data processing module,
Described gps antenna is measured the speed of a motor vehicle, distance travelled, vehicle acceleration, longitude and latitude and sea level elevation information, and transfers to described gps data processing module; Described gps data processing module receives information, and is converted into corresponding CAN packet, transfers to described host computer by described CAN bus and described USBtoCAN communication module.
8. vehicle experimental enviroment information acquisition system under a kind of altitude environment according to claim 7, it is characterized in that described collection of simulant signal module, described wireless data receiver module, described temperature collect module and described gps data processing module all are arranged in the shockproof bubble chamber of aluminum on the automobile.
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| CN104296998A (en) * | 2013-07-15 | 2015-01-21 | 上海通用汽车有限公司 | Automobile road test aiding device |
| CN104568039A (en) * | 2013-10-18 | 2015-04-29 | 北京位智天下技术有限公司 | Vehicle fuel consumption algorithm based on LBS technology |
| CN106297286A (en) * | 2015-04-24 | 2017-01-04 | 王栋 | A kind of mountainous area highway actual road test signal detection system |
| CN108883771A (en) * | 2016-04-01 | 2018-11-23 | 罗伯特·博世有限公司 | Method and apparatus for determining the coefficient of friction on travelable ground by this vehicle |
| CN111028377A (en) * | 2019-11-22 | 2020-04-17 | 深圳供电局有限公司 | Inspection system of power transmission line and transmission method of inspection data |
| CN111879526A (en) * | 2020-07-30 | 2020-11-03 | 东风汽车集团有限公司 | Method and system for evaluating oil consumption of automobile cooler |
| CN112437876A (en) * | 2017-07-29 | 2021-03-02 | 山东诺方电子科技有限公司 | Method and system for improving objectivity of atmospheric pollutant monitoring data |
| CN113551715A (en) * | 2021-09-22 | 2021-10-26 | 南京东大智能化系统有限公司 | Internet of things network management and control system and method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104296998B (en) * | 2013-07-15 | 2017-05-10 | 上海通用汽车有限公司 | Automobile road test aiding device |
| CN104296998A (en) * | 2013-07-15 | 2015-01-21 | 上海通用汽车有限公司 | Automobile road test aiding device |
| CN104568039A (en) * | 2013-10-18 | 2015-04-29 | 北京位智天下技术有限公司 | Vehicle fuel consumption algorithm based on LBS technology |
| CN106297286A (en) * | 2015-04-24 | 2017-01-04 | 王栋 | A kind of mountainous area highway actual road test signal detection system |
| CN106297286B (en) * | 2015-04-24 | 2019-01-18 | 西安航空学院 | A kind of mountainous area highway actual road test signal detection system |
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| CN112437876A (en) * | 2017-07-29 | 2021-03-02 | 山东诺方电子科技有限公司 | Method and system for improving objectivity of atmospheric pollutant monitoring data |
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| CN111028377A (en) * | 2019-11-22 | 2020-04-17 | 深圳供电局有限公司 | Inspection system of power transmission line and transmission method of inspection data |
| CN111879526B (en) * | 2020-07-30 | 2021-09-28 | 东风汽车集团有限公司 | Method and system for evaluating oil consumption of automobile cooler |
| CN111879526A (en) * | 2020-07-30 | 2020-11-03 | 东风汽车集团有限公司 | Method and system for evaluating oil consumption of automobile cooler |
| CN113551715A (en) * | 2021-09-22 | 2021-10-26 | 南京东大智能化系统有限公司 | Internet of things network management and control system and method |
| CN113551715B (en) * | 2021-09-22 | 2021-12-14 | 南京东大智能化系统有限公司 | Internet of things network management and control system and method |
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