CN208224834U - A kind of onboard diagnostic system based on Ethernet - Google Patents
A kind of onboard diagnostic system based on Ethernet Download PDFInfo
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- CN208224834U CN208224834U CN201721438931.5U CN201721438931U CN208224834U CN 208224834 U CN208224834 U CN 208224834U CN 201721438931 U CN201721438931 U CN 201721438931U CN 208224834 U CN208224834 U CN 208224834U
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Abstract
The utility model relates to a kind of onboard diagnostic system based on Ethernet, technical characterstic includes: transmission of the vehicle-mounted Ethernet for vehicle self communication and diagnostic data；External ethernet network connect with vehicle-mounted Ethernet and realizes access function；Automobile gateway is connected with vehicle-mounted Ethernet and external ethernet network；Vehicle diagnostics experience database is connected with diagnostic device interactive information is refreshed, and external refresh diagnostic device is write with a brush dipped in Chinese ink script according to the diagnosis that diagnostic experiences database returns and operated by automobile gateway to the vehicle in vehicle-mounted Ethernet.The utility model carries out vehicle diagnostics with vehicle-mounted ethernet technology, make car owner, engineer, maintenance personal etc. under ethernet environment or wireless network environment is just realized and the high speed of vehicle diagnosis information is read and changed, enormously simplify the complexity of operation, cost and the time needed for also reducing vehicle diagnosis while improving diagnosis efficiency, realize the facilitation of vehicle diagnostics.
Description
Technical field
The utility model belongs to technical field of automotive electronics, especially a kind of onboard diagnostic system based on Ethernet.
Background technique
With sharply increasing for automobile quantity, auto repair is become more and more important.Orthodox car diagnosis and repair sticks to
Requirement to the time and space, and operation complexity is higher, inefficiency, and vehicle diagnosis higher cost.Market at present
The diagnosis of upper majority automobile is the communication modes realized based on CAN bus, but car ownership is constantly increasing, and utilizes
CAN bus diagnoses the drawbacks of relative complex and inefficiency and increasingly shows.With the development of technical field of automotive electronics, how
Improving automobile diagnosis and repair efficiency and reducing maintenance cost is problem in the urgent need to address at present.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, propose a kind of onboard diagnostics system based on Ethernet
System solves the problems, such as that automobile diagnosis and repair is inconvenient and cost is excessively high.
The utility model solves its technical problem and adopts the following technical solutions to achieve:
A kind of onboard diagnostic system based on Ethernet, comprising:
Vehicle-mounted Ethernet is connect with external ethernet for vehicle self communication and diagnostic data by automobile gateway
Transmission；
External ethernet network is connect with vehicle-mounted Ethernet by automobile gateway and realizes access function；
Automobile gateway is connected with vehicle-mounted Ethernet and external ethernet network, realizes outer brush in external ethernet network
Data-transformation facility in new diagnostic device and vehicle-mounted Ethernet between vehicle subnet component；
Vehicle diagnostics experience database is connected with refreshing diagnostic device interactive information and provides correct diagnosis for vehicle
Write with a brush dipped in Chinese ink script；
External refresh diagnostic device is connected in external ethernet network, the diagnosis brush returned according to diagnostic experiences database
It writes script and the vehicle in vehicle-mounted Ethernet is operated by automobile gateway.
The vehicle-mounted Ethernet is by multiple vehicle-mounted sub-networks at the ECU in each onboard system is all connected to accordingly
On DoIP node gateway, multiple DoIP node gateways are connected to the network together by IP-based, one of DoIP node net
It closes and is connected as DoIP fringe node gateway with external ethernet network.
DoIP node in the vehicle-mounted Ethernet uses identical IP version, and IP version is IPv4 or IPv6.
The external ethernet network IP-based network is constituted.
It is connected between the automobile gateway and vehicle-mounted Ethernet using Ethernet physical interface or WLAN interface.
The advantages and positive effects of the utility model are as follows:
Vehicle-mounted Ethernet, external ethernet network and external refresh diagnostic device are combined together by the utility model, fortune
Vehicle diagnostics are carried out with vehicle-mounted ethernet technology, provide the bandwidth of 100Mbit/s to meet huge data throughout and place
Speed is managed, makes car owner, engineer, maintenance personal etc. under ethernet environment, can be realized even with wireless network environment
The high speed of vehicle diagnosis information is read and change, allows the fault diagnosis break through requirement of automobile and the constraint of space requirement,
The complexity for enormously simplifying operation, cost and the time needed for also reducing vehicle diagnosis while improving diagnosis efficiency,
Realize the facilitation of vehicle diagnostics.
Detailed description of the invention
Fig. 1 is the onboard diagnostic system overall structure diagram of the utility model；
Fig. 2 is the vehicle-mounted Ethernet and external ethernet network connection schematic diagram of the utility model；
Single unit vehicle and single external test facility example network connection schematic diagram of the Fig. 3 for embodiment 1；
Multiple vehicles and single external test facility example network connection schematic diagram of the Fig. 4 for embodiment 2.
Specific embodiment
The utility model embodiment is further described below in conjunction with attached drawing.
A kind of onboard diagnostic system based on Ethernet, as shown in Figure 1, comprising:
Vehicle-mounted Ethernet, for the transmission of vehicle self communication and diagnostic data, have statement vehicle exist and by
The ability detected realizes the condition for being added to network.
External ethernet network is established for realize communication function, having the function of detecting vehicle and establishing communication connection
Connection with vehicle-mounted Ethernet simultaneously realizes access function.
Automobile gateway has as the medium of information exchange transmission and realizes external refresh diagnostic device and vehicle subnet group
Function is established in data routing, holding intercommunication between part；Automobile gateway realizes the protocol conversion function between Ethernet.
Vehicle diagnostics experience database, for external refresh diagnostic device interactive information, according to diagnostic result be vehicle
Correctly diagnosis is provided and writes with a brush dipped in Chinese ink script.
External refresh diagnostic device is connected in external ethernet network, be able to detect that vehicle and with its internal IP component
Effective communication is established, the script information returned according to diagnostic experiences database passes through automobile gateway to the vehicle in vehicle-mounted Ethernet
It carries out the operation such as writing with a brush dipped in Chinese ink.
As shown in Fig. 2, the vehicle-mounted Ethernet is by multiple vehicle-mounted sub-networks at ECU in each onboard system
(Electronic Control Unit, electronic control unit) is all connected on corresponding DoIP node gateway, multiple DoIP sections
Point gateway is connected to the network together by IP-based, and one of DoIP node gateway is as DoIP fringe node gateway and outside
Portion's Ethernet is connected.The external ethernet network IP-based network is constituted, and the external testing in external ethernet network is set
It is standby to be connected with DoIP fringe node gateway, external refresh diagnostic device and finished vehicle electronic modular assembly in external ethernet network
(ECU) it is communicatively coupled.External ethernet network and vehicle-mounted Ethernet are IP-based network, the Ethernet by with
Too net physical interface or Ethernet wireless interface is communicated.Whole system is diagnosed by IP, and diagnostic service passes through
Ethernet is carried out using Ethernet total data rate reaches 100Mbit/s, may be implemented at the high speed real-time Transmission of diagnostic data
Reason.In order to guarantee the normal communication of whole system, the MAC Address of all entity parts must be unique, and the institute in In-vehicle networking
There is DoIP that should use identical IP version, i.e. IPv4 or IPv6.
The working process of the utility model is as follows: all entities are properly configuration in guarantee system first, at this time should be in IP
It is capable of detecting when that all entity states are correct on network, guarantees to establish network company between vehicle and external refresh diagnostic device
It connects.Then from outside write with a brush dipped in Chinese ink diagnostic device to automobile gateway send access request after, by gateway provide it with it is security-related
Data, to unlock safety vehicle ECU.The data of vehicles passing in and out subnet can only be sent by the DoIP gateway of connection, such as Fig. 2 institute
Show.Achieve that predefined message and data exchange sequence between diagnostic device and vehicle ECU are write with a brush dipped in Chinese ink in outside at this time.From outside
It writes with a brush dipped in Chinese ink after diagnostic device system issues one or more requests to vehicle-mounted IP network, obtains one or more response from vehicle
Message prepares state including verifying vehicle or carries out the data of vehicle diagnostics fault trace.It writes with a brush dipped in Chinese ink diagnostic device and will obtain in outside
Vehicle diagnosis information be transferred to diagnostic experiences database, outside be back to by the correct script of data base call write with a brush dipped in Chinese ink diagnosis and set
It is standby, and diagnostic device is write with a brush dipped in Chinese ink from outside and writes with a brush dipped in Chinese ink request instruction to gateway transmission, vehicle ECU is write with a brush dipped in Chinese ink after being confirmed.
For security reasons, certain use-cases and communication scenes may be refused by vehicle, this depends on the status bar of vehicle
Part (such as when driving) may need additional security regulations, especially when executing wireless communication.
Embodiment 1
As shown in figure 3, the present embodiment provides the vehicle diagnosing system of single unit vehicle Yu single external test facility, outside is surveyed
Examination equipment (notebook) 4 is connected by Ethernet cable 2 with Ethernet switch and wireless local network connecting point 1, wait diagnose
Vehicle 6 is connected by Ethernet cable 2 with Ethernet switch and wireless local network connecting point 1.External test facility (PDA)
5 are connected by wireless network with access with Ethernet switch and wireless local network connecting point 1.
The application environment of the present embodiment are as follows: Mr. Yu's money vehicle is made after using for a period of time, to find the vehicle mounted guidance on vehicle
The version of system is lower, and cartographic information and real road situation are quite different, is unable to satisfy with vehicle demand.The processing of the prior art
Method is: vehicle being sent to 4S point or repair shop carries out mapping module upgrading, not only the time is expended and the upgrade service needs to prop up
Pay certain expense.The processing method of the utility model is: car owner can allow vehicle, the disposition of external refresh diagnostic device in same
Under a ether networking environment, it can be wired ethernet physical connection, can also start to match with wireless PDA, open inspection
It surveys, it then follows after above-mentioned steps, the script with up-to-date map version is write with a brush dipped in Chinese ink request and is sent to gateway by external refresh diagnostic device,
It obtains carrying out upgrading to vehicle-mounted navigation map module after the confirmation of car owner writing with a brush dipped in Chinese ink.
Embodiment 2
As shown in figure 4, the present embodiment provides the vehicle diagnosing system of multiple vehicles Yu single external test facility,
External test facility (PC) 4 is connected by Ethernet cable 2 with franchise agency or maintenance shop's network 1, to
Diagnosis vehicle 6 and vehicle to be diagnosed 7 are connected by Ethernet cable 2 with franchise agency or maintenance shop's network 1, and outside is surveyed
Trying the logical connection between equipment (PC) 4 and vehicle to be diagnosed 6 is logical channel 9, and vehicle 8 to be diagnosed passes through WLAN3 and franchise
Agency or maintenance shop's network 1 are connected, and the logical connection between external test facility (PC) 4 and vehicle to be diagnosed 8 is to patrol
Collect channel 10.Network server 5 is connected by Ethernet cable 2 with franchise agency or maintenance shop's network 1.
The application environment of the present embodiment are as follows: after certain brand vehicle releases market for a period of time, there are one for discovery product quality
Fixed defect (software section of electronic system), may cause dangerous consequences under certain driving condition, and producer needs at this time
" recalling " processing is carried out to the product, existing solution is: auto vendor notifies the shop each dealer 4S, is notified by them
Car owner informs the hidden danger, and handles the time through consultation, and car owner send vehicle to handling in shop；And for being equipped with Ethernet
The vehicle solution of onboard diagnostic system be: producer need to only provide newest reparation installation kit, and script is write with a brush dipped in Chinese ink under permission
Putting to even engineer individual, an external refresh diagnostic device in shop can operate in network with to more trolleys,
It allows more trolleys to be in same network environment, is executed and write with a brush dipped in Chinese ink by engineer or maintenance personal, so that it may be efficiently completed and " call together
Return " work.
It is emphasized that embodiment described in the utility model be it is illustrative, without being restrictive, therefore this reality
Embodiment described in specific embodiment is not limited to novel, it is all according to the present utility model by those skilled in the art
The other embodiments that technical solution obtains also belong to the range of the utility model protection.
Claims (3)
1. a kind of onboard diagnostic system based on Ethernet, characterized by comprising:
Vehicle-mounted Ethernet connect the biography for being used for vehicle self communication and diagnostic data by automobile gateway with external ethernet
Defeated, the vehicle-mounted Ethernet is by multiple vehicle-mounted sub-networks at the ECU in each onboard system is all connected to corresponding DoIP node
On gateway, multiple DoIP node gateways are connected to the network one of DoIP node gateway conduct together by IP-based
DoIP fringe node gateway is connected with external ethernet network；
External ethernet network connect with vehicle-mounted Ethernet by automobile gateway and realizes access function, the external ethernet network base
It is constituted in the network of IP；
Automobile gateway is connected with vehicle-mounted Ethernet and external ethernet network, realizes that external refresh is examined in external ethernet network
Data-transformation facility in disconnected equipment and vehicle-mounted Ethernet between vehicle subnet component；
Vehicle diagnostics experience database is connected with refreshing diagnostic device interactive information and provides correctly diagnosis for vehicle and writes with a brush dipped in Chinese ink
Script；
External refresh diagnostic device is connected in external ethernet network, writes with a brush dipped in Chinese ink foot according to the diagnosis that diagnostic experiences database returns
This operates the vehicle in vehicle-mounted Ethernet by automobile gateway.
2. a kind of onboard diagnostic system based on Ethernet according to claim 1, it is characterised in that: the vehicle-mounted ether
DoIP node in network uses identical IP version, and IP version is IPv4 or IPv6.
3. a kind of onboard diagnostic system based on Ethernet according to claim 1 or 2, it is characterised in that: the automobile
It is connected between gateway and vehicle-mounted Ethernet using Ethernet physical interface or WLAN interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721438931.5U CN208224834U (en) | 2017-11-01 | 2017-11-01 | A kind of onboard diagnostic system based on Ethernet |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721438931.5U CN208224834U (en) | 2017-11-01 | 2017-11-01 | A kind of onboard diagnostic system based on Ethernet |
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| CN201721438931.5U Expired - Fee Related CN208224834U (en) | 2017-11-01 | 2017-11-01 | A kind of onboard diagnostic system based on Ethernet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107765676A (en) * | 2017-11-01 | 2018-03-06 | 河北工业大学 | A kind of onboard diagnostic system and its method based on Ethernet |
| CN112104591A (en) * | 2019-06-17 | 2020-12-18 | 现代自动车株式会社 | Communication device of controller and communication method thereof |
-
2017
- 2017-11-01 CN CN201721438931.5U patent/CN208224834U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107765676A (en) * | 2017-11-01 | 2018-03-06 | 河北工业大学 | A kind of onboard diagnostic system and its method based on Ethernet |
| CN112104591A (en) * | 2019-06-17 | 2020-12-18 | 现代自动车株式会社 | Communication device of controller and communication method thereof |
| CN112104591B (en) * | 2019-06-17 | 2023-07-18 | 现代自动车株式会社 | Communication device of controller and communication method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181211 Termination date: 20201101 |