CN205862221U - A kind of electric automobile fault diagnosis system based on CAN protocol and failure diagnostic apparatus - Google Patents
A kind of electric automobile fault diagnosis system based on CAN protocol and failure diagnostic apparatus Download PDFInfo
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- CN205862221U CN205862221U CN201620592697.0U CN201620592697U CN205862221U CN 205862221 U CN205862221 U CN 205862221U CN 201620592697 U CN201620592697 U CN 201620592697U CN 205862221 U CN205862221 U CN 205862221U
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Abstract
This utility model provides a kind of electric automobile fault diagnosis system based on CAN protocol and failure diagnostic apparatus, relate to electric vehicle engineering field, the technical scheme is that a kind of electric automobile fault diagnosis system based on CAN protocol, including entire car controller and hand-hold vehicle parameter fault diagnosis instrument, vehicle parameter failure diagnostic apparatus circuit structure includes that CPU controls processor and controls CAN, data display screen and the power module for above-mentioned module for power supply that processor is connected respectively with CPU, and described CAN is connected with entire car controller.Provide the benefit that: (1) native system and apparatus structure compact and reasonable, the quickest to the analyzing and processing of condition of the vehicle and fault；Save space, cost-effective, it is easy to promote the use of.
Description
Technical field
This utility model relates to electric vehicle engineering field, is specifically related to a kind of electric automobile fault based on CAN protocol
Diagnostic system and failure diagnostic apparatus.
Background technology
Along with the development of auto technology, controller area network (Controller Area Network) almost becomes
For the bus communication technology that must use a kind of in automotive field.The CAN bus communication technology introduced in automotive communication network,
The various abnormalities that the essential information of automobile, automobile can occur or malfunction, carry out record, and auxiliary solves automobile
Fault, it is possible to increase the loss that the efficiency of trouble shooting and reduction fault cause, improves reliability and the safety of automobilism.
With in recent years, electric automobile becomes the development priority of new-energy automobile, but, traditional method for diagnosing faults is setting
The software that standby upper needs are special, personnel could skillfully need to use through a large amount of trainings；And current Diagnosis method of automobile faults and
Instrument, due to interface configuration variance, the problem such as information processing system is not mated, degree of accuracy is low, is not suitable for examining of electric automobile fault
Disconnected, therefore, along with the production scale of electric automobile constantly expands, maintenance and after-sale service face the shortage of instrument, to electronic vapour
Car field brings inconvenience and trouble.
Summary of the invention
This utility model is for solving the problems referred to above, it is provided that a kind of electric automobile fault diagnosis system based on CAN protocol
And failure diagnostic apparatus, by arranging in the board structure of circuit of hand electric automobile fault diagnostic apparatus and within electric automobile
The CAN controller of entire car controller coupling, arranges CPU further and controls processor and the technical scheme of data display screen, it is achieved
High flux, the quick and precisely assessment to electric automobile vehicle situation, the analyzing and diagnosing to fault.
For achieving the above object, the technical solution adopted in the utility model is: the event of a kind of electric automobile based on CAN protocol
Barrier diagnostic system, including entire car controller electric automobile within, described entire car controller and cell management system of electric automobile,
Electric machine controller and car body control module connect by CAN, it is critical that also include and entire car controller in described system
Connect, be arranged on the hand-hold vehicle parameter fault diagnosis instrument outside electric automobile, vehicle parameter failure diagnostic apparatus circuit structure
Include CPU control processor and respectively with CPU control processor be connected CAN, data display screen and be above-mentioned
The power module of module for power supply, described CAN is connected with entire car controller.
This utility model also provides for a kind of hand electric automobile fault diagnostic apparatus based on CAN protocol, including housing and
Be arranged on the circuit board of enclosure interior, it is critical that described board structure of circuit include CPU control processor and respectively with CPU
Control CAN, data display screen that processor connects and be the power module of above-mentioned module for power supply, described CAN communication
Module is connected with entire car controller.
In technique scheme, electric automobile fault diagnosis system based on CAN protocol includes being arranged on electric automobile
Internal entire car controller and be arranged on the hand-hold vehicle parameter fault diagnosis being connected outside electric automobile with entire car controller
Instrument, the hardware such as the battery management system being provided with in electric automobile (BMS), electric machine controller and car body control module (BCM) sets
Standby, these hardware devices are connected with entire car controller by CAN, and carry out data communication, above-mentioned number by CAN protocol
According to mainly include but not limited to by hardware device gather battery voltage, temperature, electric current, motor speed, torque, voltage,
The parameters such as electric current；As of the present utility model it is critical that in the circuit structure of described hand-hold vehicle parameter fault diagnosis instrument
Control at processor, data display screen and power module, CAN one end and CPU control including CAN, CPU
Reason device connects, and the other end is connected with entire car controller, it is achieved CPU controls processor and to the reception of entire car controller data and sends out
Send, CPU controls processor and is modified data, sends after calculation process to data display screen, and data display screen is to gathering
Data after data and calculation process show in real time, and power module is used for as above-mentioned each module for power supply and voltage-regulation, guarantor
Card system properly functioning.
The beneficial effects of the utility model are: the electric automobile failure diagnostic apparatus that (1) this utility model provides and electronic vapour
Entire car controller coupling on car is proper, and formed system with the use of, save space, cost-effective；(2) this failure diagnostic apparatus
And system structure compact and reasonable, the quickest to the analyzing and processing of condition of the vehicle and fault；(3) this instrument is manufactured easily,
The electric automobile using CAN to analyze had universality, it is easy to promote the use of.
Accompanying drawing explanation
Fig. 1 is the structural representation of the circuit board of this utility model electric automobile failure diagnostic apparatus.
Detailed description of the invention
Embodiment 1
This utility model provides a kind of electric automobile fault diagnosis system based on CAN protocol, inside electric automobile
Entire car controller and be connected with entire car controller, be arranged on the hand-hold vehicle parameter fault diagnosis instrument outside electric automobile,
Described entire car controller is connected by CAN with cell management system of electric automobile, electric machine controller and car body control module,
Data communication is carried out, it is critical that described hand-hold vehicle parameter fault diagnosis instrument is by CAN communication port by CAN protocol
Being connected with entire car controller, see Fig. 1 structural representation, the circuit structure of hand-hold vehicle parameter fault diagnosis instrument includes
CPU controls processor and the CAN, the data display screen that are connected with CPU control processor respectively and supplies for above-mentioned module
The power module of electricity, described CAN is connected with entire car controller.
Above-mentioned electric automobile fault diagnosis system based on CAN protocol includes the car load control being arranged within electric automobile
Device processed and be arranged on the hand-hold vehicle parameter fault diagnosis instrument being connected outside electric automobile, electric automobile with entire car controller
The hardware devices such as the battery management system (BMS), electric machine controller and the car body control module (BCM) that are inside provided with, these hardware
Equipment is connected with entire car controller by CAN, and carries out data communication by CAN protocol, and above-mentioned data mainly include
But it is not limited to the parameters such as the battery voltage by hardware device collection, temperature, electric current, motor speed, torque, voltage, electric current；
Described outside hand-hold vehicle parameter fault diagnosis instrument is used for processing above-mentioned data and carrying out Parameter analysis of electrochemical also according to CAN protocol
Show the relevant parameter of electric automobile in real time, judge according to fault diagnosis agreement and show the fault of electric automobile simultaneously, it is simple to
The condition diagnosing of electric automobile, the circuit structure of hand-hold vehicle parameter fault diagnosis instrument includes that CAN, CPU are controlled
Processor processed, data display screen and power module, CAN one end controls processor with CPU and is connected, and the other end is with whole
Vehicle controller connects, it is achieved CPU controls processor to the reception of entire car controller data and transmission, and CPU controls processor logarithm
Send to data display screen according to being modified, after calculation process, the number after the data display screen data to gathering and calculation process
According to showing in real time, power module is for for above-mentioned each module for power supply and voltage-regulation, it is ensured that system properly functioning.
Further, described CAN includes CAN transceiver, CAN transmitter and CAN controller, described
Between CAN transceiver and CAN controller, between CAN transmitter and CAN controller, it is respectively equipped with photoelectric isolating circuit.Photoelectricity every
Can prevent high-frequency signal and high-voltage signal from disturbing for the transmission of CAN signal from circuit, reduce distorted signals, effectively raise
The precision of signal transmission.
Further, described CPU control processor includes Freescale S9s12g96clf chip and supporting peripheral electricity thereof
Road, described CAN controller model is PCA82C251, and the model of described CAN transceiver and CAN transmitter is TJA1050.Fly to think
The data message of electric automobile inside entire car controller is modified and transports based on CAN protocol by karr S9s12g96clf chip
Calculation processes；The message of acquisition process is shown by described parameter display module in real time, and display time interval is 10ms.
PCA82C251 with TJA1050 is combined the precision effectively raising signal transmission.
Further, described data display screen includes touching display screen, touches preferably 7 cun display screens of display screen.
Further, described power module be the accumulator being connected with circuit board or be integrated in batteries of electric automobile management system
In the working power of system.
Further, described circuit structure also includes controlling, with CPU, the plug-in SD storage card that processor is connected.Plug
Formula SD card is used for the condition information after storing the data of fault diagnosis system collection and vehicle diagnosis and fault message, it is simple to by number
According to being transferred to dedicated analysis software or computer carries out data convert, it is simple to only need to pull up SD card when car breaks down can be with dimension
The personnel of repairing link up.
This utility model also provides for a kind of hand electric automobile fault diagnostic apparatus based on CAN protocol, including housing and
It is arranged on the circuit board of enclosure interior, housing can arrange multiple function key relevant to management content item, depresses button
Corresponding parameter can be carried out at any time show and fault diagnosis behavior；Described board structure of circuit sees Fig. 1, processes including CPU control
Device and the CAN, data display screen and the power supply mould for above-mentioned module for power supply that are connected with CPU control processor respectively
Block, described CAN is connected with entire car controller.
Further,
Described CAN includes CAN transceiver, CAN transmitter and CAN controller, described CAN transceiver with
Between CAN controller, between CAN transmitter and CAN controller, it is respectively equipped with photoelectric isolating circuit.Photoelectric isolating circuit can prevent
High-frequency signal and high-voltage signal, for the transmission interference of CAN signal, reduce distorted signals, effectively raise the essence of signal transmission
Degree.
Further, described CPU control processor includes Freescale S9s12g96clf chip and supporting peripheral electricity thereof
Road, described CAN controller model is PCA82C251, and the model of described CAN transceiver and CAN transmitter is TJA1050.Fly to think
The data message of electric automobile inside entire car controller is modified and transports based on CAN protocol by karr S9s12g96clf chip
Calculation processes；The message of acquisition process is shown by described parameter display module in real time, and display time interval is 10ms.
PCA82C251 with TJA1050 is combined the precision effectively raising signal transmission.
Further, described circuit structure also includes controlling, with CPU, the plug-in SD storage card that processor is connected.
The electric automobile fault diagnosis system based on CAN protocol of this utility model offer and failure diagnostic apparatus, to parameter
Parsing speed is 10ms, and transmission speed is 250kbps, and the display time interval of data display screen is 10ms, in actual applications
Can be fast, accurately to condition of the vehicle and diagnosing malfunction and display, diagnosis efficiency is high, easy to use, time saving and energy saving.
Claims (10)
1. an electric automobile fault diagnosis system based on CAN protocol, including the entire car controller within electric automobile, described
Entire car controller is connected by CAN with cell management system of electric automobile, electric machine controller and car body control module, and it is special
Levy and be, described system also includes be connected with entire car controller, be arranged on the hand-hold vehicle parameter event outside electric automobile
Barrier diagnostic apparatus, vehicle parameter failure diagnostic apparatus circuit structure includes that CPU controls processor and controls processor even with CPU respectively
CAN, data display screen and the power module for above-mentioned module for power supply connect, described CAN and car load control
Device processed connects.
Electric automobile fault diagnosis system the most according to claim 1, it is characterised in that wrap in described CAN
Include CAN transceiver, CAN transmitter and CAN controller, between described CAN transceiver and CAN controller, CAN transmitter with
Photoelectric isolating circuit it is respectively equipped with between CAN controller.
Electric automobile fault diagnosis system the most according to claim 2, it is characterised in that described CPU controls processor bag
Including Freescale S9s12g96clf chip and supporting peripheral circuit thereof, described CAN controller model is PCA82C251, described
The model of CAN transceiver and CAN transmitter is TJA1050.
Electric automobile fault diagnosis system the most according to claim 1 and 2, it is characterised in that described data display screen is
Touch display screen.
Electric automobile fault diagnosis system the most according to claim 1 and 2, it is characterised in that described power module be with
Accumulator that circuit board connects or be integrated in the working power of cell management system of electric automobile.
Electric automobile fault diagnosis system the most according to claim 1 and 2, it is characterised in that in described circuit structure also
The plug-in SD storage card that processor is connected is controlled including with CPU.
7. a hand electric automobile fault diagnostic apparatus based on CAN protocol, including housing and the electricity being arranged on enclosure interior
Road plate, it is characterised in that described board structure of circuit includes that CPU controls processor and controls what processor was connected with CPU respectively
CAN, data display screen and be the power module of above-mentioned module for power supply, described CAN and entire car controller
Connect.
Electric automobile failure diagnostic apparatus the most according to claim 7, it is characterised in that described CAN includes
CAN transceiver, CAN transmitter and CAN controller, between described CAN transceiver and CAN controller, CAN transmitter and CAN
Photoelectric isolating circuit it is respectively equipped with between controller.
Electric automobile failure diagnostic apparatus the most according to claim 8, it is characterised in that described CPU controls processor and includes
Freescale S9s12g96clf chip and supporting peripheral circuit thereof, described CAN controller model is PCA82C251, described
The model of CAN transceiver and CAN transmitter is TJA1050.
10. according to the electric automobile failure diagnostic apparatus described in claim 7 or 8, it is characterised in that described circuit structure also wraps
Include and control, with CPU, the plug-in SD storage card that processor is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620592697.0U CN205862221U (en) | 2016-06-17 | 2016-06-17 | A kind of electric automobile fault diagnosis system based on CAN protocol and failure diagnostic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620592697.0U CN205862221U (en) | 2016-06-17 | 2016-06-17 | A kind of electric automobile fault diagnosis system based on CAN protocol and failure diagnostic apparatus |
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| CN205862221U true CN205862221U (en) | 2017-01-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990774A (en) * | 2017-06-08 | 2017-07-28 | 河北御捷时代汽车有限公司 | A kind of electric automobile portable fault diagnosis tester and its monitoring method |
| CN107740729A (en) * | 2017-09-30 | 2018-02-27 | 中国北方发动机研究所(天津) | A kind of diesel engine electric control system failure diagnostic apparatus |
| CN108995532A (en) * | 2018-07-25 | 2018-12-14 | 合肥市智信汽车科技有限公司 | A kind of monitoring of vehicle-state and integrated display system |
| CN110837897A (en) * | 2018-08-09 | 2020-02-25 | 郑州宇通客车股份有限公司 | Intelligent physical examination method and device for electric motor coach entering and exiting station |
-
2016
- 2016-06-17 CN CN201620592697.0U patent/CN205862221U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990774A (en) * | 2017-06-08 | 2017-07-28 | 河北御捷时代汽车有限公司 | A kind of electric automobile portable fault diagnosis tester and its monitoring method |
| CN106990774B (en) * | 2017-06-08 | 2019-04-26 | 河北御捷时代汽车有限公司 | A kind of electric car portable fault diagnosis tester and its monitoring method |
| CN107740729A (en) * | 2017-09-30 | 2018-02-27 | 中国北方发动机研究所(天津) | A kind of diesel engine electric control system failure diagnostic apparatus |
| CN108995532A (en) * | 2018-07-25 | 2018-12-14 | 合肥市智信汽车科技有限公司 | A kind of monitoring of vehicle-state and integrated display system |
| CN110837897A (en) * | 2018-08-09 | 2020-02-25 | 郑州宇通客车股份有限公司 | Intelligent physical examination method and device for electric motor coach entering and exiting station |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181012 Address after: 054007 Huining village, Xingtai County, Xingtai, Hebei Patentee after: Hebei Hongxing Automobile Manufacturing Co., Ltd. Address before: 454191 south side of Coke Road, central station, Jiaozuo, Henan Patentee before: Duo-fluoride Chemicals Co., Ltd. |