CN203720648U - Electric-vehicle automatic diagnosis system based on wireless network - Google Patents

Electric-vehicle automatic diagnosis system based on wireless network Download PDF

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Publication number
CN203720648U
CN203720648U CN201420083601.9U CN201420083601U CN203720648U CN 203720648 U CN203720648 U CN 203720648U CN 201420083601 U CN201420083601 U CN 201420083601U CN 203720648 U CN203720648 U CN 203720648U
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China
Prior art keywords
vehicle
interface module
wireless network
mobile terminal
system based
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Expired - Fee Related
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CN201420083601.9U
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Chinese (zh)
Inventor
吴成加
张海洋
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Anhui Ankai Automobile Co Ltd
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Anhui Ankai Automobile Co Ltd
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Priority to CN201420083601.9U priority Critical patent/CN203720648U/en
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Publication of CN203720648U publication Critical patent/CN203720648U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model provides an electric-vehicle automatic diagnosis system based on a wireless network. The diagnosis system includes a vehicle-body ECU arranged on a vehicle-mounted end and also includes a mobile terminal, and a vehicle-mounted diagnostic device and a WIFI wireless interface module, which are arranged at the vehicle-mounted end. The vehicle-body ECU is in interactive connection with the vehicle-mounted diagnostic device through a vehicle-body CAN bus. The vehicle-mounted diagnostic device is in interactive connection with the mobile terminal through the WIFI wireless interface module. In the electric-vehicle automatic diagnosis system, the vehicle-mounted diagnostic device and the WIFI wireless interface module are arranged at the vehicle-mounted end so that wires connection in a traditional diagnostic scheme is changed into wireless connection and thus maintenance personnel do not need to carry a computer or a diagnostic device all the time; data interactive communication between the vehicle-body ECU and the mobile terminal can be realized through a WIFI wireless communication method; and the electric-vehicle automatic diagnosis system is simple to operate and capable of saving time and labor and improving the system maintenance efficiency of the vehicle-body ECU.

Description

A kind of electric automobile auto-check system based on wireless network
Technical field
The utility model relates to Control of Electric Vehicles technical field, specifically a kind of electric automobile auto-check system based on wireless network.
Background technology
Along with the development of electric automobile electronic technology and improving constantly of automotive performance, the electronic controller ECU on electric automobile is more and more, as motor driven systems, battery management system, air-conditioning system, high-low pressure control system, instrument and body control system etc.When these electronic controllers break down in operational process, need maintainer to help in time to solve.Uneven due to driver and maintainer's technical merit, after system breaks down, can not find in time guilty culprit according to phenomenon, most of problem need to be connected to vehicle diagnostics interface by coherent detection or diagnostic instrments and carry out malfunction elimination or diagnosis, has affected the maintenance efficiency of system.Because the electronic controller ECU control node of electric automobile is various, complex structure, when breaking down, need maintainer to respond fast, solve a problem promptly, maintainer will carry dependence test system and maintenance tool all the time, to maintainer, goes out to bring inconvenience.In addition, when needing for some reason carry out firmware upgrade or control parameter adjustment to certain controller in system, need the relevant devices such as maintainer or professional service staff's carrying notebook computer, inverter to get on the bus, open controller housing, connect download interface, the program code in computer is downloaded in the processor memory of controller inside, complete manually more new technological process, operate very loaded down with trivial detailsly, waste time and energy, bring certain difficulty to maintenance and the test job of system.
Utility model content
The purpose of this utility model is to provide a kind of electric automobile auto-check system based on wireless network, can realize the attribute information of vehicle and extraction and application quiet, multidate information, and vehicle is supervised and the integrated service such as debugging by this system.
The technical solution of the utility model is:
A kind of electric automobile auto-check system based on wireless network, comprise the vehicle body ECU that is located at vehicle-mounted end, the vehicle-borne diagnosis instrument and the WIFI radio interface module that also comprise mobile terminal and be located at vehicle-mounted end, described vehicle body ECU is connected by vehicle body CAN bus and vehicle-borne diagnosis instrument are interactive, and described vehicle-borne diagnosis instrument is connected by WIFI radio interface module and mobile terminal are interactive.
The described electric automobile auto-check system based on wireless network, described vehicle-borne diagnosis instrument is connected with WIFI radio interface module is interactive by RS232 serial line interface or Transistor-Transistor Logic level interface.
The described electric automobile auto-check system based on wireless network, described WIFI radio interface module is connected by wireless network and mobile terminal are interactive.
The described electric automobile auto-check system based on wireless network, described vehicle-borne diagnosis instrument and WIFI radio interface module integrate, form ECU interface module, the external interface of described ECU interface module is comprised of power interface, CAN communication interface and WIFI interface antenna.
The described electric automobile auto-check system based on wireless network, described vehicle body ECU comprises car load control module, electric-motor drive unit and battery management unit.
The described electric automobile auto-check system based on wireless network, described mobile terminal comprises notebook computer, hand-held PDA and smart mobile phone.
As shown from the above technical solution, the utility model is by arranging vehicle-borne diagnosis instrument and WIFI radio interface module at vehicle-mounted end, wired connection in traditional diagnosis scheme is converted to wireless connections, the various running statuses of vehicle body ECU, failure message, parameter configuration etc. all can show on mobile terminal, being convenient to maintainer has access to, revise, maintainer is without carrying all the time computer and diagnostic instrments, by WIFI wireless communication mode, can realize the data interaction communication between vehicle body ECU and mobile terminal, simple to operate, time saving and energy saving, improved the system maintenance efficiency of vehicle body ECU.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model specific embodiment;
Fig. 2 is the vehicle-borne diagnosis instrument of the utility model specific embodiment and the integrated morphology schematic diagram of WIFI radio interface module.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model.
As shown in Figure 1, a kind of electric automobile auto-check system based on wireless network, comprise and be located at vehicle body ECU1, vehicle-borne diagnosis instrument 3, WIFI radio interface module 4 and mobile terminal 5, vehicle body ECU1, vehicle-borne diagnosis instrument 3 and WIFI radio interface module 4 are located at vehicle-mounted end.Vehicle body ECU1 is connected with vehicle-borne diagnosis instrument 3 is interactive by vehicle body CAN bus 2, vehicle-borne diagnosis instrument 3 is connected with WIFI radio interface module 4 is interactive by RS232 serial line interface or Transistor-Transistor Logic level interface, and WIFI radio interface module 4 is connected by wireless network and mobile terminal are interactive.Vehicle body ECU1 comprises car load control module 11, electric-motor drive unit 12, battery management unit 13 etc.Mobile terminal comprises that notebook computer, hand-held PDA, smart mobile phone etc. are with the hand-held digital terminal of WIFI interface and application software.
The effect of vehicle-borne diagnosis instrument 3 in system of the present utility model is to be equivalent to an information transfer mechanism, the information of being responsible for receives and data maintenance work, on the one hand, the information that its mobile terminal receive 5 sends over via WIFI radio interface module 4, and convert the information receiving to CAN information, via vehicle body CAN bus 2, send to vehicle body ECU1 again, complete instruction and data and download, on the other hand, it receives the information that vehicle body ECU1 sends over via vehicle body CAN bus 2, and the information receiving is processed according to certain data layout, be kept in buffer memory, if receive new data, just in former buffer address, cover preservation (being Refresh Data), when vehicle-borne diagnosis instrument 3 receives the solicited message that mobile terminal 5 sends via WIFI radio interface module 4, it will receive from vehicle body CAN bus 2, through processing, be kept at the current information in buffer memory, by serial ports or Transistor-Transistor Logic level, be transmitted to WIFI radio interface module 4, WIFI radio interface module 4 converts current information to radio network information, finally by mobile terminal 5, received.
WIFI radio interface module 4 is a crucial core converting member in system of the present utility model, it be a kind of can be by terminals such as PC, handheld devices (as PDA, mobile phone) with the interconnected interface module of wireless mode, the connected mode that connects computer and diagnostic device by netting twine is in the past converted into by radiowave and is networked.WIFI radio interface module 4 is flush bonding modules that meet WIFI wireless network standards, built-in wireless network protocol IEEE802.11 protocol stack and ICP/IP protocol stack, can realize user's serial ports or Transistor-Transistor Logic level data to the conversion between wireless network, and support plurality of wireless networks cipher mode, can fully guarantee the safe transmission of user data.
As shown in Figure 2, in actual use, vehicle-borne diagnosis instrument 3 and WIFI radio interface module 4 are integrated together, form an independently ECU interface module 34, external interface only retains power interface 341, CAN communication interface 342 and WIFI interface antenna 343.ECU interface module 34 is connected its inner power module 6 24V power supply outside with it by power interface 341, by CAN communication interface 342, its inner vehicle-borne diagnosis instrument 3 vehicle body CAN bus 2 outside with it is connected, by WIFI interface antenna 343, its inner WIFI radio interface module 4 mobile terminal outside with it is connected.User can be connected to ECU interface module 34 in vehicle body network all the time, or carries, and only when needs are used, is just accessed vehicle body network.In information link, WIFI radio interface module 4 is configured to wireless network focus, and now, WIFI radio interface module 4 is equivalent to a webserver, mobile terminal 5 becomes a client of this server, between mobile terminal 5 and vehicle-borne diagnosis instrument 3, by ICP/IP protocol, carries out communication.
Principle of work of the present utility model:
S1, networking when diagnosis, maintainer is first linked into the diagnose interface of vehicle-borne diagnosis instrument vehicle body CAN network, vehicle-borne diagnosis instrument is linked into vehicle body CAN network and receives after the CAN information of vehicle body ECU transmission, it is processed and is kept in buffer memory according to certain protocol format, if receive fresh information, just fresh information is covered in former buffer address to preservation (being Refresh Data), what make to preserve in the internal memory of vehicle-borne diagnosis instrument is the current up-to-date information of vehicle body ECU all the time.
S2, WIFI radio interface module are after powering on, a network focus will self be arranged to, make it become a webserver in auto-check system, to periphery, transmit wireless network signal, maintainer, by near radio network information mobile terminal to search, finds after the network information of this WIFI radio interface module, and input connects after password logging in online, the successful connection of mobile terminal prompting network, maintainer opens corresponding application software and operates on mobile terminal.
S3, maintainer is when operation and application software, its corresponding command information arrives the webserver of WIFI focus by wireless network transmissions, WIFI radio interface module receives after this command information, convert thereof into serial ports or Transistor-Transistor Logic level information sends to vehicle-borne diagnosis instrument, vehicle-borne diagnosis instrument receives after the command information of mobile terminal, carry out information searching, the information that mobile terminal is needed returns by WIFI radio interface module again, mobile terminal and the vehicle-borne diagnosis instrument mode by this question-response completes corresponding parameter and checks, data modification, the work such as application program download and parameter downloads demarcation.
From the above, the utility model is by being loaded in the electronic transmission devices on vehicle, by wireless telecommunications and recognition of devices technology, on mobile terminal, realize the attribute information of vehicle and extraction and application quiet, multidate information, and vehicle is supervised and the integrated service such as debugging.User is by using mobile terminal, can realize the functions such as conventional fault investigation to vehicle, parameter calibration, program download.Maintainer is without carrying all the time computer and diagnostic instrments, as long as connect upper vehicle body CAN network, by using lightweight notebook computer, hand-held PDA, smart mobile phone etc. with the hand-held digital terminal of WIFI interface and application software, can realize the data interaction communication (upload or download) between vehicle body ECU and mobile terminal.When maintainer goes out to serve, only need carry a smart mobile phone or a PDA can complete all diagnostic tests and maintenance work.Safeguarding on-the-spotly, service technician can be undertaken that menu setecting, parameter are checked by mobile terminal, the work such as automatic diagnosis, parameter downloads demarcation are downloaded, completed to data modification, application program.
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 (6)

1. the electric automobile auto-check system based on wireless network, comprise the vehicle body ECU that is located at vehicle-mounted end, it is characterized in that: the vehicle-borne diagnosis instrument and the WIFI radio interface module that also comprise mobile terminal and be located at vehicle-mounted end, described vehicle body ECU is connected by vehicle body CAN bus and vehicle-borne diagnosis instrument are interactive, and described vehicle-borne diagnosis instrument is connected by WIFI radio interface module and mobile terminal are interactive.
2. the electric automobile auto-check system based on wireless network according to claim 1, is characterized in that: described vehicle-borne diagnosis instrument is connected with WIFI radio interface module is interactive by RS232 serial line interface or Transistor-Transistor Logic level interface.
3. the electric automobile auto-check system based on wireless network according to claim 1, is characterized in that: described WIFI radio interface module is connected by wireless network and mobile terminal are interactive.
4. the electric automobile auto-check system based on wireless network according to claim 1, it is characterized in that: described vehicle-borne diagnosis instrument and WIFI radio interface module integrate, form ECU interface module, the external interface of described ECU interface module is comprised of power interface, CAN communication interface and WIFI interface antenna.
5. the electric automobile auto-check system based on wireless network according to claim 1, is characterized in that: described vehicle body ECU comprises car load control module, electric-motor drive unit and battery management unit.
6. the electric automobile auto-check system based on wireless network according to claim 1, is characterized in that: described mobile terminal comprises notebook computer, hand-held PDA and smart mobile phone.
CN201420083601.9U 2014-02-26 2014-02-26 Electric-vehicle automatic diagnosis system based on wireless network Expired - Fee Related CN203720648U (en)

Priority Applications (1)

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CN201420083601.9U CN203720648U (en) 2014-02-26 2014-02-26 Electric-vehicle automatic diagnosis system based on wireless network

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Application Number Priority Date Filing Date Title
CN201420083601.9U CN203720648U (en) 2014-02-26 2014-02-26 Electric-vehicle automatic diagnosis system based on wireless network

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CN203720648U true CN203720648U (en) 2014-07-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103809587A (en) * 2014-02-26 2014-05-21 安徽安凯汽车股份有限公司 Electric car automatic diagnostic system and method based on wireless network
CN104616462A (en) * 2015-02-03 2015-05-13 江西凯马百路佳客车有限公司 Internet based vehicle failure warning system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103809587A (en) * 2014-02-26 2014-05-21 安徽安凯汽车股份有限公司 Electric car automatic diagnostic system and method based on wireless network
CN103809587B (en) * 2014-02-26 2016-04-13 安徽安凯汽车股份有限公司 A kind of electric automobile auto-check system based on wireless network and method
CN104616462A (en) * 2015-02-03 2015-05-13 江西凯马百路佳客车有限公司 Internet based vehicle failure warning system

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

Granted publication date: 20140716

Termination date: 20190226

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