CN202330027U - Motor vehicle experiment data outer storage system - Google Patents

Motor vehicle experiment data outer storage system Download PDF

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Publication number
CN202330027U
CN202330027U CN2011203253916U CN201120325391U CN202330027U CN 202330027 U CN202330027 U CN 202330027U CN 2011203253916 U CN2011203253916 U CN 2011203253916U CN 201120325391 U CN201120325391 U CN 201120325391U CN 202330027 U CN202330027 U CN 202330027U
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China
Prior art keywords
data
battery pack
external memory
sensor
electric vehicle
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Expired - Fee Related
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CN2011203253916U
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Chinese (zh)
Inventor
冯能莲
曹剑东
雍加望
宾洋
彭剑坤
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Beijing University of Technology
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Beijing University of Technology
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Abstract

The utility model relates to a motor vehicle experiment data outer storage system, which belongs to the field of data storage. Data obtained from electric vehicle experiments is stored in the motor vehicle experiment data outer storage system. The motor vehicle experiment data outer storage system is characterized by comprising a data collecting part, a data analysis and warning part, a data display part and a data outer storage part, wherein data collected by the data collecting part comprises voltage, current and temperature of a battery pack and motor rotating speed, the data analysis and warning part analyzes the data collected by the data collecting part and realizes the fault warning function, the data display part displays the data collected by the data collecting part onto a touch screen through an RS232 serial port, and motor vehicle experiment data is stored in the data outer storage part. The motor vehicle experiment data outer storage system can be used for accurately collecting electric vehicle experiment data in real time, in addition, the data is analyzed and display, and the experiment data storage is completed.

Description

Electric vehicle experimental data external memory system
Technical field
The utility model relates to a kind of electric vehicle experimental data external memory system, belongs to the data-storing field.Specifically, with regard to relating to the parameters of electric vehicle experiment operation is detected, and the data that detect are carried out analytical calculation and demonstration, again with detected data storage externally on the storer.
Background technology
Along with the increase of the amount of having always of global automobile, the orthodox car engine has consumed mass energy when very strong driving force is provided, and the amplification quantity exhaust pollutant causes serious atmospheric pollution side by side.The shortage of the serious day by day and petroleum resources of motor vehicle exhaust emission problem, it is more and more obvious to make that electric vehicle replaces the trend of traditional fuel combustion vehicle.In the R&D process of electric vehicle, the electric vehicle collection of experiment data has the effect of directiveness to effective raising vehicle performance.Data acquisition is meant the process of automatic Information Monitoring from analog-and digital-unit under tests such as sensor and other Devices to test.It has constituted the basis of modern detecting with sensor technology, signal processing technology, computer technology, and the modern development of data acquisition system (DAS) aspect picking rate and data processing software is more and more faster.The development of data acquisition technology mainly comprises following two aspects: 1, the development of acquisition chip hardware; 2, the continuous development of bussing technique application is used also more and more widely the combination of bussing technique in data acquisition.
In the research process of electric vehicle, the effective analysis to parts parameters such as the motor of vehicle operating, batteries will help Optimal Control Strategy, improve management method, and then improve vehicle performance.Therefore, the data storage with vehicle operating seems extremely important in ature of coal.Through the RS232 serial ports with data storage in computer, be data storage method the most frequently used on the present automobile.This mode not only cost is high, and because the computer volume is bigger, is unfavorable for realizing the lighting of testing.
The utility model content
The purpose of the utility model is through a kind of electric vehicle experimental data external memory system is provided, and to overcome the deficiency of above-mentioned background technology, makes it have dependable performance, characteristics such as easy to operate.
The utility model is to adopt following technological means to realize:
A kind of electric vehicle experimental data external memory system, its data storage that will obtain from the electric vehicle experiment therein, it comprises: battery pack total current sensor 1, cell 2; Battery pack 3, battery pack total voltage sensor 4, monomer battery voltage sensor 5, cell temperature sensor 6; Electronic switch 7, motor speed sensor 8, microprocessor unit 9, alarm module 10; CH375 module 11, RS232 serial ports 12, external memory storage 13, touch-screen 14.
Wherein, battery pack 3 is composed in series by cell 2; Battery pack total current sensor 1 is serially connected in the output terminal of battery pack 3; Battery pack total voltage sensor 4 is attempted by the output terminal of battery pack 3; Cell temperature sensor 6 is all posted on the surface of the every joint cell in the battery pack 3; The two ends of the every joint cell in the battery pack 3 all and order body battery voltage sensor 5; Cell temperature sensor 6, motor speed sensor 8, alarm module 10 directly are connected with microprocessor unit 9 respectively; Battery pack total voltage sensor 4, battery pack total current sensor 1, monomer battery voltage sensor 5 are connected with electronic switch 7 respectively; Electronic switch 7 is connected with microprocessor unit 9; External memory storage 13 is connected with microprocessor unit 9 through CH375 module 11; Touch-screen 14 is connected with microprocessor unit 9; Cell temperature sensor 6 is connected with microprocessor unit 9 respectively.
Described battery pack 3 provides power source for electric vehicle.
Gather battery pack total voltage sensor 4, the monomer battery voltage sensor 5 of accumulator battery voltage; The motor speed sensor 8 of gathering the battery pack total current sensor 1 of battery current, the cell temperature sensor 6 of gathering the battery pack temperature, collection motor speed has constituted data external memory system data collecting part.
The signal of described battery pack total voltage sensor 4, monomer battery voltage sensor 5, battery pack total current sensor 1 is gathered through electronic switch successively.
9 pairs of image data of microprocessor unit are analyzed, and realize the fault judgement warning; The voltage normal range is-60~60V, and the electric current normal range is-40~40A, and the temperature normal range is-10~60 ℃; As long as an index exceeds normal range, just send fault alarm.
Described touch-screen 14 communicates through RS232 serial ports 12 and microprocessor unit 9.
Described external memory storage 13 comprises USB flash disk or SD card for supporting the storer of USB interface.
Described CH375 module 11, external memory storage 13 composition data external memory parts are created TXT format text file therein, realize the storage of electric vehicle magnanimity experimental data.
Described TXT text content comprises, electric vehicle experimental data, the capacity of data, and event memory prompting.
The capacity of described data is the byte number of the data of having stored, and event memory prompts for data storage and whether accomplishes prompting.
The utility model compared with prior art has following remarkable advantages and beneficial effect:
A kind of electric vehicle experimental data external memory system gathers the electric vehicle experimental data in real time accurately, and data is analyzed demonstration, accomplishes the storage of experimental data.The utility model is based on USB (USB) interface, and USB is a kind of high-speed bus agreement in the data communication field widespread use, and the high-speed transfer pattern in the USB2.0 agreement can reach 480Mb/s.Compare with other universal serial bus, USB has that speed is fast, cost is low, bus-powered, plug and play and be easy to advantages such as expansion.The utility model has improved communication quality not to the utmost through using USB interface, and supports plug and play, thereby has realized the storage easily in real time of electric vehicle experimental data.
Description of drawings
Fig. 1 is the integral module block diagram of the utility model.
Fig. 2 is the wiring schematic diagram of electronic switch in the utility model.
Among the figure: 1 is battery pack total current sensor, and 2 is cell, and 3 is battery pack, and 4 is battery pack total voltage sensor; 5 is the monomer battery voltage sensor, and 6 is the cell temperature sensor, and 7 is electronic switch, and 8 is motor speed sensor; 9 is microprocessor unit, and 10 is alarm module, and 11 is the CH375 module; 12 is the RS232 serial ports, and 13 is external memory storage, and 14 is touch-screen.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
A kind of electric vehicle experimental data external memory as shown in Figure 1 system, its data storage that will obtain from the electric vehicle experiment therein, it comprises: battery pack total current sensor 1, cell 2; Battery pack 3, battery pack total voltage sensor 4, monomer battery voltage sensor 5, cell temperature sensor 6; Electronic switch 7, motor speed sensor 8, microprocessor unit 9, alarm module 10; CH375 module 11, RS232 serial ports 12, external memory storage 13, touch-screen 14.
Wherein, battery pack 3 is composed in series by cell 2; Battery pack total current sensor 1 is serially connected in the output terminal of battery pack 3; Battery pack total voltage sensor 4 is attempted by the output terminal of battery pack 3; Cell temperature sensor 6 is all posted on the surface of the every joint cell in the battery pack 3; The two ends of the every joint cell in the battery pack 3 all and order body battery voltage sensor 5; Cell temperature sensor 6, motor speed sensor 8, alarm module 10 directly are connected with microprocessor unit 9 respectively; Battery pack total voltage sensor 4, battery pack total current sensor 1, monomer battery voltage sensor 5 are connected with electronic switch 7 respectively; Electronic switch 7 is connected with microprocessor unit 9; External memory storage 13 is connected with microprocessor unit 9 through CH375 module 11; Touch-screen 14 is connected with microprocessor unit 9; Cell temperature sensor 6 is connected with microprocessor unit 9 respectively.
Described battery pack 3 provides power source for electric vehicle.
Gather battery pack total voltage sensor 4, the monomer battery voltage sensor 5 of accumulator battery voltage; The motor speed sensor 8 of gathering the battery pack total current sensor 1 of battery current, the cell temperature sensor 6 of gathering the battery pack temperature, collection motor speed has constituted data external memory system data collecting part.
The signal of described battery pack total voltage sensor 4, monomer battery voltage sensor 5, battery pack total current sensor 1 is gathered through electronic switch successively.
Described touch-screen 14 communicates through RS232 serial ports 12 and microprocessor unit 9.
Described external memory storage 13 comprises USB flash disk or SD card for supporting the storer of USB interface.
Be illustrated in figure 2 as the wiring schematic diagram of electronic switch, what sensor was exported all is voltage signal, and the conducting successively of microprocessor unit control electronic switch (that is, the same time, has only a sensor to link to each other with single-chip microcomputer.The time of conducting is very short successively) select to connect different sensor, thus realize reading to sensor signal.
Microprocessor unit 9 is the control core of whole electric vehicle experimental data external memory system.During system boot, microprocessor unit 9 pairs of data acquisition systems, touch-screen and internal interrupt are carried out initialization, after system detects storage button is pressed; Opens interrupters and log-on data collection; Capacity to external memory storage detects, if the discovery capacity is not enough, starts warning circuit; If find that external memory storage 13 is no abnormal, then detect whether there has been the TXT text in the external memory storage 13, if there is not the TXT text, the TXT text is externally created in the storer 13 by system; If there is the TXT text, system can write the data that collect according to established form in file, and the data that write comprise: electric vehicle experimental data, the capacity of data, and event memory prompting.
When after selecting corresponding button on the touch-screen 14; Touch-screen 14 is sent to microprocessor unit 9 with detected position signalling, and microprocessor unit 9 is judged the button of user's selection and sent corresponding demonstration control command to touch-screen 14 through RS232 serial ports 12 according to position signalling; The result of motor speed sensor, voltage sensor, current sensor is sent to the analog/digital conversion mouth of microprocessor unit 9 with the form of voltage; Obtain the value of rotating speed, voltage, electric current after value and the conversion of microprocessor unit 9 through reading the analog/digital conversion mouth, and these values are delivered to touch-screen 14 show; After the voltage that collects, electric current, temperature signal exceeded normal range, alarm module 10 can send alarm sound and warning light is reported to the police.
Concrete principle of work is following:
1. microprocessor unit 9: microprocessor unit 9 is the control core of whole electric vehicle experimental data external memory system, microprocessor unit 9 through the position signalling that interrupts real-time senses touch screen 14 and send with confirm the data measured of being wanted and touch-screen 14 contents to display; Microprocessor unit 9 makes full use of the hardware interrupts resource of self, the value of coming calculating voltage sensor, current sensor through the magnitude of voltage that reads the analog/digital conversion mouth; Simultaneously, microprocessor unit 9 carries out data interaction with External memory equipment through USB interface, accomplishes the storage of image data.
2. data acquisition: include motor speed sensor 8, voltage sensor, current sensor, temperature sensor in the hardware circuit; Be used to gather the rotating speed of motor signal, voltage, the temperature signal of each cell in the total voltage of battery pack 3, total current signal and the battery pack 3.Because the restriction of microprocessor unit 9 self analog/digital conversion mouth quantity, microprocessor unit 9 control electronic switches are each sensor of gating successively, and then gathers the signal that each sensor acquisition arrives.For real time of data acquisition; The timer hardware interrupts that the utility model makes full use of microprocessor unit 9 realizes the collection and the analysis of data; Microprocessor unit 9 timer timings are set to 50ms; Be every 50ms of mistake, microprocessor unit 9 just can be gathered and calculate the electric vehicle experimental data.
3. data presentation: after the start, microprocessor unit 9 is the position signalling that returns of senses touch screen 14 always, to select to show different data contents.When the user after selecting corresponding button on the touch-screen 14; Touch-screen 14 is sent to microprocessor unit 9 with detected position signalling through RS232 serial ports 12; Microprocessor unit 9 is judged button that the user selects and is sent corresponding control command to the touch-screen 14 that shows through the RS232 serial ports according to position signalling, and the data content that users such as the voltage that collects, electric current, temperature, rotating speed are selected is sent to touch-screen 14 and shows.
4. data analysis and warning: microprocessor unit 9 interrupts constantly the sensing data in the car being gathered through timer; And the data of gathering are carried out computational analysis; The voltage normal range is-60~60V, and the electric current normal range is-40~40A, and the temperature normal range is-10~60 ℃; After the voltage that collects, electric current, temperature signal exceed normal range; System can start warning circuit, on touch-screen 14, shows factor and the details that breaks down simultaneously, to improve the efficient and the security of experiment.
5. data external memory part: the data external memory partly comprises CH375 module 11 and external memory storage 13.Microprocessor unit 9 is through communicating by letter support USB2.0 agreement between the external memory storage of 11 realizations of CH375 module and support USB interfaces such as USB flash disk, SD card.After system detected storage button is pressed, opens interrupters and log-on data collection detected the capacity of external memory storage 13, if the discovery capacity is not enough, start alarm module 10; If find that external memory storage 13 is no abnormal, then detect whether there has been the TXT text in the external memory storage 13, if there is not the TXT text, the TXT text is externally created in the storer 13 by system; If there is the TXT text, system can write the data that collect according to established form in file, and the data that write comprise: electric vehicle experimental data, the capacity of data, and event memory prompting.

Claims (8)

1. electric vehicle experimental data external memory system, its data storage that will obtain from the electric vehicle experiment is characterized in that it comprises: battery pack total current sensor (1) therein; Cell (2), battery pack (3), battery pack total voltage sensor (4), monomer battery voltage sensor (5); Cell temperature sensor (6), electronic switch (7), motor speed sensor (8); Microprocessor unit (9), alarm module (10), CH375 module (11); RS232 serial ports (12), external memory storage (13), touch-screen (14);
Wherein, battery pack (3) is composed in series by cell (2); Battery pack total current sensor (1) is serially connected in the output terminal of battery pack (3); Battery pack total voltage sensor (4) is attempted by the output terminal of battery pack (3); Cell temperature sensor (6) is all posted on the surface of the every joint cell in the battery pack (3); The two ends of the every joint cell in the battery pack (3) all and order body battery voltage sensor (5); Cell temperature sensor (6), motor speed sensor (8), alarm module (10) directly are connected with microprocessor unit (9) respectively; Battery pack total voltage sensor (4), battery pack total current sensor (1), monomer battery voltage sensor (5) are connected with electronic switch (7) respectively; Electronic switch (7) is connected with microprocessor unit (9); External memory storage (13) is connected with microprocessor unit (9) through CH375 module (11); Touch-screen (14) is connected with microprocessor unit (9); Cell temperature sensor (6) is connected with microprocessor unit (9) respectively.
2. electric vehicle experimental data external memory according to claim 1 system, it is characterized in that: described battery pack (3) provides power source for electric vehicle.
3. electric vehicle experimental data external memory according to claim 1 system is characterized in that: battery pack total voltage sensor (4), the monomer battery voltage sensor (5) of gathering accumulator battery voltage; The motor speed sensor (8) of gathering the battery pack total current sensor (1) of battery current, the cell temperature sensor (6) of gathering the battery pack temperature, collection motor speed has constituted data external memory system data collecting part.
4. electric vehicle experimental data external memory according to claim 3 system is characterized in that: the signal of described battery pack total voltage sensor (4), monomer battery voltage sensor (5), battery pack total current sensor (1) is gathered through electronic switch successively.
5. electric vehicle experimental data external memory according to claim 1 system, it is characterized in that: microprocessor unit (9) is analyzed image data, and realizes that fault judgement reports to the police; The voltage normal range is-60~60V, and the electric current normal range is-40~40A, and the temperature normal range is-10~60 ℃; As long as an index exceeds normal range, just send fault alarm.
6. electric vehicle experimental data external memory according to claim 1 system is characterized in that: described touch-screen (14) communicates through RS232 serial ports (12) and microprocessor unit (9).
7. electric vehicle experimental data external memory according to claim 1 system is characterized in that: described external memory storage (13) comprises USB flash disk or SD card for supporting the storer of USB interface.
8. electric vehicle experimental data external memory according to claim 7 system; It is characterized in that: described CH375 module (11), external memory storage (13) composition data external memory part; Create TXT format text file therein, realize the storage of electric vehicle magnanimity experimental data.
CN2011203253916U 2011-09-01 2011-09-01 Motor vehicle experiment data outer storage system Expired - Fee Related CN202330027U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102419258A (en) * 2011-09-01 2012-04-18 北京工业大学 External storage system for experiment data of electric vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102419258A (en) * 2011-09-01 2012-04-18 北京工业大学 External storage system for experiment data of electric vehicle

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C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120711

Termination date: 20130901