CN203490489U - Data acquisition unit for electric vehicle - Google Patents
Data acquisition unit for electric vehicle Download PDFInfo
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- CN203490489U CN203490489U CN201320522445.7U CN201320522445U CN203490489U CN 203490489 U CN203490489 U CN 203490489U CN 201320522445 U CN201320522445 U CN 201320522445U CN 203490489 U CN203490489 U CN 203490489U
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- acquisition unit
- data acquisition
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- electric vehicle
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Abstract
The utility model provides a data acquisition unit for an electric vehicle. The data acquisition unit comprises a microprocessor, a CAN interface circuit, a data memory, an SD card memory, a real-time clock circuit and a data transmission interface. According to the data acquisition unit for an electric vehicle, on the basis of on-site data acquisition, operation information of the whole vehicle is filtered and received through a whole vehicle CAN bus network, information focused by researchers is acquired in real time with high speed and is recorded in the internal SD card memory, and the SD card memory has the advantages of being large in capacity, fast in reading and writing and the like. Thus, massive operation information can be recorded for a long time. Sufficient and objective data analysis bases can be favorably provided for the researchers to formulate and optimize a whole vehicle control strategy of an automobile.
Description
Technical field
The utility model relates to electric automobile Data Detection and monitoring technology on-line field, specifically a kind of used for electric vehicle data acquisition unit.
Background technology
Electric automobile is to solve one of current new forms of energy, the practicable transition scheme of environmental issue.The course continuation mileage of electric automobile and corresponding best travel speed, driving cycle etc. are its important parameters of applying, are also the important foundations that automobile engineering designer determines prioritization scheme and the technical parameter of electric automobile.Therefore, need to carry out real time record and monitoring to the running status of electric automobile and operational factor (electric current, voltage, battery temperature, the speed of a motor vehicle, rotating speed, battery cell be the highest/parameter variation tendency of minimum voltage variation range, battery SOC, sensor information, motor and frequency converter key components and parts etc.), for formulation and the optimization of electric automobile whole control strategy provides sufficient analysis foundation.
Conventional recording method has at controller inner placement registration card or takes remote monitoring measure.In the inner running state information of placing registration card often can only minute book controller self of controller, can not record the information of other system of car load, there is certain limitation; Long distance control system is comprised of mounted remote monitor terminal and Surveillance center's platform, mounted remote monitor terminal real time record car load operation information, by GSM network, connect telecommunication path server, telecommunication path server is connected with Surveillance center platform by INTERNET network, although can realize online data monitoring, owing to being mainly for car operation data, the data of record are limited, and communication speed is affected by Internet Transmission, data do not possess integrality.Therefore, be necessary to design a kind of data collector and acquisition method that can comprehensively record car load operation information, for researchist formulates and optimizes integrated vehicle control tactics, provide fully objectively data analysis foundation.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of electric automobile service data that can real time high-speed gathers, and can be for a long time, record greatly the used for electric vehicle data acquisition unit of service data capacity.
The technical solution of the utility model is:
A kind of used for electric vehicle data acquisition unit, comprise microprocessor, CAN interface circuit, data-carrier store, SD card memory, real time clock circuit, data transmission interface, described microprocessor is connected with CAN interface circuit, data-carrier store, SD card memory, real time clock circuit interactive signal respectively, and described data transmission interface is connected with CAN interface circuit interactive signal.
Described used for electric vehicle data acquisition unit, also comprises status indicator lamp, and the signal input part of described status indicator lamp connects the signal output part of microprocessor.
Described used for electric vehicle data acquisition unit, also comprises power-switching circuit, and described power-switching circuit is for converting external power source to the working power of SD card memory.
The utility model is to take on-site data gathering as basis, by car load CAN bus communication network, filter and receive car load operation CAN information, the information that real time high-speed collection researchist need to pay close attention to is also recorded in inner SD card memory, SD card memory has the features such as capacity is large, read or write speed is fast, therefore can record operation information for a long time, in large quantities, being conducive to provides sufficient objectively data analysis foundation for researchist formulates and optimizes vehicle complete vehicle control strategy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of used for electric vehicle data acquisition unit, comprises microprocessor 1, CAN interface circuit 2, data-carrier store 3, SD card memory 4, real time clock circuit 5, data transmission interface 6, status indicator lamp 7, power-switching circuit 8.
Two of the centres pin of data transmission interface 6 is connected with CANH, the CANL of electric automobile whole CAN bus network, CAN information is introduced to data acquisition unit inner, it is inner that the working power that two, the outside pin of data transmission interface 6 provides vehicle electric system is introduced data acquisition unit, for data acquisition unit internal circuit provides working power, power-switching circuit 8 converts the power supply of being introduced by data transmission interface 6 to the working power of SD card memory.
CANH, the CANL that data transmission interface 6 is introduced is connected with microprocessor 1 interactive signal by the CAN interface circuit 2 of data acquisition unit inside; The data-carrier store 3 of data acquisition unit inside is connected with microprocessor 1 interactive signal by SPI interface; The real time clock circuit 5 of data acquisition unit inside is connected with microprocessor 1 interactive signal by SPI interface; SD card memory 4 is connected with microprocessor 1 interactive signal by SPI interface, and SD card memory 4 is inserted in the SD card slot of data acquisition unit inside by locking device; The signal input part of the status indicator lamp 7 of data acquisition unit inside is connected with the signal output part of microprocessor 1.
Principle of work of the present utility model:
Host computer is configured data acquisition unit, the CAN information of its collection of needs is formed to information identifier list, by CAN interface circuit 2, be sent to microprocessor 1, microprocessor 1 is that information identifier list is kept in data-carrier store 3 by this configuration information, the information that this configuration information is mainly used for car load CAN bus to receive is filtered, and determines which is the information needing.
When data acquisition unit configures correct, and by data transmission interface 6, be connected while being linked in Full-vehicle CAN bus network with car load data diagnosis interface, operation informations a large amount of in Full-vehicle CAN bus network are sent to microprocessor 1 by CAN interface circuit 2, microprocessor 1, according to the information identifier list of preserving in data-carrier store 3, is compared one by one to the information receiving.
When the information identifier list of preserving in the information and date storer 3 that microprocessor 1 receives conforms to, the correlation parameter being about in this frame information records and preserves, and regularly the information of record is encapsulated to packing pre-service simultaneously.Packets of information is comprised of one group of information sequence, (time marking derives from the real time clock circuit 5 being connected by SPI interface with microprocessor 1 to include timeslice information, when microprocessor 1 is during in running status, real time clock circuit 5 is started working, microprocessor 1 is is regularly read and write this real time clock circuit 5, acquisition time information, so that later stage use while carrying out data analysis), electric current, voltage, frequency converter/motor/battery temperature, the speed of a motor vehicle, rotating speed, air pressure, battery cell be the highest/minimum voltage, battery SOC, sensor information etc.
After packets of information is disposed, microprocessor 1, by SPI interface mode, is written in SD card memory 4.When user need to have access to data, the data transmission interface of data acquisition unit 6 and Full-vehicle CAN bus network can be thrown off, then by USB-CAN converter, be linked in computing machine, or SD card memory is extracted from SD card slot, by card reader, be connected with computing machine again, get final product sense data, and by correlation analysis software to data analysis.
When microprocessor 1 is in running order, status indicator lamp 7 can be according to its work at present state, carry out flicker or the Chang Liang of different frequency, user can judge the running status that data acquisition unit is inner current according to the flicker frequency of status indicator lamp 7 and light on and off state.
The above embodiment is only that preferred implementation of the present utility model is described; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection domain of claims of the present utility model.
Claims (3)
1. a used for electric vehicle data acquisition unit, it is characterized in that, comprise microprocessor, CAN interface circuit, data-carrier store, SD card memory, real time clock circuit, data transmission interface, described microprocessor is connected with CAN interface circuit, data-carrier store, SD card memory, real time clock circuit interactive signal respectively, and described data transmission interface is connected with CAN interface circuit interactive signal.
2. used for electric vehicle data acquisition unit according to claim 1, is characterized in that, also comprises status indicator lamp, and the signal input part of described status indicator lamp connects the signal output part of microprocessor.
3. used for electric vehicle data acquisition unit according to claim 1, is characterized in that, also comprises power-switching circuit, and described power-switching circuit is for converting external power source to the working power of SD card memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320522445.7U CN203490489U (en) | 2013-08-26 | 2013-08-26 | Data acquisition unit for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320522445.7U CN203490489U (en) | 2013-08-26 | 2013-08-26 | Data acquisition unit for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203490489U true CN203490489U (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320522445.7U Expired - Fee Related CN203490489U (en) | 2013-08-26 | 2013-08-26 | Data acquisition unit for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203490489U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439903A (en) * | 2013-08-26 | 2013-12-11 | 安徽安凯汽车股份有限公司 | Data acquisition unit and sampling method thereof for electric vehicle |
| CN106249634A (en) * | 2016-10-14 | 2016-12-21 | 安徽安凯汽车股份有限公司 | A kind of real-time clock based on electric automobile data acquisition function |
-
2013
- 2013-08-26 CN CN201320522445.7U patent/CN203490489U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439903A (en) * | 2013-08-26 | 2013-12-11 | 安徽安凯汽车股份有限公司 | Data acquisition unit and sampling method thereof for electric vehicle |
| CN103439903B (en) * | 2013-08-26 | 2016-02-24 | 安徽安凯汽车股份有限公司 | A kind of method of sampling of data acquisition unit used for electric vehicle |
| CN106249634A (en) * | 2016-10-14 | 2016-12-21 | 安徽安凯汽车股份有限公司 | A kind of real-time clock based on electric automobile data acquisition function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20190826 |