CN207711984U - A kind of synthesis body control system of integrated OBD gateways - Google Patents
A kind of synthesis body control system of integrated OBD gateways Download PDFInfo
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- CN207711984U CN207711984U CN201820065286.5U CN201820065286U CN207711984U CN 207711984 U CN207711984 U CN 207711984U CN 201820065286 U CN201820065286 U CN 201820065286U CN 207711984 U CN207711984 U CN 207711984U
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Abstract
The utility model discloses a kind of synthesis body control systems of integrated OBD gateways, including comprehensive body control system, CAN bus and OBD gateways, the comprehensive body control system is integrated with OBD gateways, share a microprocessor, the microprocessor supports 3 tunnel CAN bus, CAN bus connects OBD gateways all the way, and CAN bus picks up body CAN network all the way, and another way CAN bus connects power CAN network.The system realizes interior CAN from hardware and is detached with the hardware interface of CAN bus outside vehicle, effectively realizes the security protection of in-vehicle information, reduces the external possibility invaded by CAN bus, ensures the safety of in-vehicle information；Meanwhile new-energy automobile vehicle body ECU nodes are also effectively integrated, reduce interior CAN bus load factor.
Description
Technical field
The utility model is related to a kind of automobile electronics, more particularly to a kind of synthesis Body Control of integrated OBD gateways
System.
Background technology
As " internet+" and social intelligenceization are universal, new-energy automobile is gradually to net connectionization, intelligent direction development.
Most of automobile factory, either new energy vehicle or orthodox car, automotive interior are all made of CAN bus communication both at home and abroad at present,
Mobile Internet is accessed from OBD interfaces by vehicle device module, realizes the monitoring of the smart machines to vehicle such as mobile phone, but CAN buses
It is the data transfer mode broadcasted using plain code to save the distributed network topology bus that harness designs, therefore CAN is total
There is very big hidden danger in the safety problem of line.The main reason for problem is never taken seriously：CAN network is in physical layer and logic chain
Road floor is using unified standard, but in the contents such as request instruction and response mechanism, and even identical producer of different automobile vendors is not
Different data exchange agreements is all used with vehicle, and these agreements are underground, it is mutually incompatible, therefore these communication protocols
Prevent the invasion of attacker.However as vehicle intellectualized, net connectionization, the appearance of more and more car networking products is interior outer
Numerous equipment and application be all connected with internet, the developing instrument price of CAN bus network gradually declines in addition, Yi Jiti
It is largely popularized for the adapter of In-vehicle networking Content of Communication, keeps these internal network communications protocol no longer mysterious, therefore to vehicle-mounted
Bus network, which implements attack, also to be become to be easy further.Famous white hat Miller and doctor Valasek were continuous from 2013
The research report about net connection automobile information safety problem is delivered within 3 years in the top security conference in the world, involved in report content
The attack arrived either by being directly connected to form, or by ECU node loopholes carries out long-range attack, finally all passes through
The CAN bus of vehicle-mounted OBD sends the instruction message forged to interior ECU nodes, to achieve the purpose that control automobile.Therefore,
Increasing the anti-intrusion research of CAN bus is very important.
It is domestic at present encryption identifying algorithm is concentrated mainly on to the research of vehicle-mounted CAN bus safety, based on intrusion detection and
In terms of Software for Design based on security framework.On the whole, it is most effective protection method based on security framework, but due to vapour
Vehicle ECU nodes are more, and most of using 16 microcontrollers, and software design pattern mostly uses greatly back-fore ground system, memory and journey
Sequence code space is limited, therefore the software design scheme based on security framework is not applicable.In addition, realized by complicated algorithm
Protection method, since CAN bus is plaintext transmission, as long as human observer obtains enough data, there is also the possibilities being cracked.
Utility model content
The purpose of this utility model is in order to overcome the deficiencies of the prior art, to propose a kind of synthesis vehicle body of integrated OBD gateways
Control system.
To achieve the above object, the utility model uses following technical proposals：
A kind of synthesis body control system of integrated OBD gateways, including comprehensive body control system, CAN bus and OBD nets
It closes, the comprehensive body control system is integrated with OBD gateways, shares a microprocessor, and the microprocessor supports 3
Road CAN bus, all the way CAN bus connect OBD gateways, another way CAN bus picks up body CAN network, finally connects automobile power all the way
CAN network gateway.
Preferably, the comprehensive body control system is car body controller module.
Preferably, the comprehensive body control system includes car body controller module and tire pressure monitoring module, Body Control
Device module shares a microprocessor with tire pressure monitoring module.
Preferably, the comprehensive body control system includes car body controller module and keyless entry module, the vehicle
Body controller module and keyless entry module share a microprocessor.
Preferably, the comprehensive body control system include car body controller module, tire pressure monitoring module and without key into
Enter module, the car body controller module, tire pressure monitoring module and keyless entry module share a microprocessor.
Preferably, the microprocessor is 32 microcontrollers.
Preferably, the CAN bus data communication rate of the connection vehicle body network is 250k/s, connection power network
CAN bus data communication rate is 500k/s, and the CAN bus data communication rate of connection OBD gateways is 250k/s.
Preferably, the car body controller module and tire pressure monitoring module share a piece of wireless receiving chip and antenna.
Preferably, the wireless receiving chip and when Antenna Operation corresponding wireless center frequency point be 433.92MHz or
315MHz。
Preferably, the wireless receiving chip is the TDA5235 of Infineon.
The utility model has the beneficial effects that realizing the hardware interface point of interior CAN and CAN bus outside vehicle from hardware
From effectively realizing the security protection of in-vehicle information, reduce external possibility invade by CAN bus, guarantee in-vehicle information
Safety；Meanwhile new-energy automobile vehicle body ECU nodes are also effectively integrated, reduce interior CAN bus load factor.
Description of the drawings
In order to illustrate more clearly of the technical scheme in the embodiment of the utility model, will make below to required in embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the utility model, right
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is that original automobile ECU connects section network diagram；
Fig. 2 is to connect section network diagram using automobile ECU after comprehensive car body controller；
Fig. 3 is comprehensive body control system functional block diagram.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples.
Embodiment 1：
In order to which table is more clearly understood that the utility model, Fig. 2,3 synthesis body control system be to integrate Body Control
It is illustrated for device module, keyless entry module and tire pressure monitoring module.
In the present embodiment, the synthesis body control system of OBD gateways, including comprehensive body control system, CAN bus are integrated
With OBD gateways, the comprehensive body control system is integrated with OBD gateways, shares a microprocessor, the microprocessor
Device supports 3 tunnel CAN bus, and CAN bus connects OBD gateways all the way, and another way CAN bus picks up body CAN network, finally connects vapour all the way
Vehicle power CAN network gateway.Comparison diagram 1 and Fig. 2 can become apparent from the improvement of vehicle body network topology.It can be with from Fig. 2
Find out, OBD gateway interfaces are detached from hardware, to protect the data safety of internal CAN bus.The present embodiment is comprehensive
The bus topology for closing body control system is promoted again, is integrated with the gateway of power CAN network and vehicle body CAN network, is made comprehensive
The integrated level higher of body control system is closed, it is with better function.
Comprehensive body control system includes car body controller module, tire pressure monitoring module and keyless entry module, described
Car body controller module, tire pressure monitoring module and keyless entry module share a microprocessor.The present embodiment is mainly applied
It is reduced to the maximum extent in the high-end vehicle of integrated tire pressure and keyless entry function in the case where protecting CAN bus invasion
The cost of automotive electronics node, improves the utilization rate of microprocessor.Fig. 3 is the system block diagram of the present embodiment, and the program is integrated
Degree and cost performance are all higher.
Microprocessor is 32 microcontrollers.The function of solution integration in embodiment is more, more can using 32 microcontrollers
The advantage of arithmetic speed is embodied, while the sexual valence of microcontroller is relatively high, more meets the trend of current technology development.For this implementation
The scheme of example, such as the MPC5604B of the PowerPC frameworks of NXP is more preferably selecting for microprocessor, sexual valence is relatively high.
The CAN bus data communication rate for connecting vehicle body network is 250k/s, and the CAN bus data of connection power network are logical
News rate is 500k/s, and the CAN bus data communication rate of connection OBD gateways is 250k/s.
Car body controller module and tire pressure monitoring module share a piece of wireless receiving chip and antenna.In this embodiment scheme
The wireless center frequency point that detect with tire pressure of remote control key processed whether will the decision selection of wireless receiving chip and setting for antenna together
Meter.If wireless center frequency point is identical, may be selected that the wireless receiving chip of this frequency point and antenna is supported otherwise wirelessly to connect
The two wireless center frequency points will be supported simultaneously by receiving chip and antenna.
Corresponding wireless center frequency point is 433.92MHz or 315MHz when wireless receiving chip and Antenna Operation.The two
Frequency is the wireless telecommunications center frequency point of current most important remote controler and tie pressure detection module, has extraordinary practical application
Meaning.
Wireless receiving chip is the TDA5235 of Infineon.The chip support wireless center frequency point be 433.92MHz or
315MHz, in practical applications by software configuration poll wireless center frequency, can reach at the same support 433.92MHz and
The wireless data of 315MHz receives.
Embodiment 2：
As different from Example 1, comprehensive body control system is car body controller module.The scheme of the present embodiment is main
For the upgrading of existing car body controller, present system schema is replaced, advantage is to facilitate upgrading, the disadvantage is that cost is higher.
Embodiment 3：
As different from Example 1, comprehensive body control system includes car body controller module and tire pressure monitoring module, vehicle
Body controller module shares a microprocessor with tire pressure monitoring module.The present embodiment is mainly used in low and middle-grade riding parking lots
It closes, since 2019, car body controller and tire pressure monitoring were the standard configurations of passenger car, and the integration of the two can reduce line
Beam improves the utilization rate of microprocessor, reduces the cost of electronic equipment.
Embodiment 4：
As different from Example 1, comprehensive body control system includes car body controller module and keyless entry module,
The car body controller module and keyless entry module share a microprocessor.Currently, keyless entry module belongs to choosing
The electronic equipment matched, the present embodiment are mainly used in having installed the vehicle of keyless entry module.
It is above-mentioned although specific embodiments of the present invention are described with reference to the accompanying drawings, but not to this practicality newly
The limitation of type protection domain, those skilled in the art should understand that, based on the technical solution of the present invention, ability
Field technique personnel need not make the creative labor the various modifications or changes that can be made still in the protection model of the utility model
Within enclosing.
Claims (10)
1. a kind of synthesis body control system of integrated OBD gateways, including comprehensive body control system, CAN bus and OBD nets
It closes, which is characterized in that the comprehensive body control system is integrated with OBD gateways, shares a microprocessor, described micro-
Processor supports 3 tunnel CAN bus, and CAN bus connects OBD gateways all the way, and another way CAN bus picks up body CAN network, finally all the way
Connect automobile power CAN network gateway.
2. the synthesis body control system of kind of integrated OBD gateways as described in claim 1, which is characterized in that the integrated car
Body control system is car body controller module.
3. the synthesis body control system of integrated OBD gateways as described in claim 1, which is characterized in that the comprehensive vehicle body
Control system includes car body controller module and tire pressure monitoring module, and car body controller module shares one with tire pressure monitoring module
Microprocessor.
4. the synthesis body control system of integrated OBD gateways as described in claim 1, which is characterized in that the comprehensive vehicle body
Control system includes car body controller module and keyless entry module, the car body controller module and keyless entry module
Share a microprocessor.
5. the synthesis body control system of integrated OBD gateways as described in claim 1, which is characterized in that the comprehensive vehicle body
Control system includes car body controller module, tire pressure monitoring module and keyless entry module, the car body controller module, tire
Monitoring modular and keyless entry module is pressed to share a microprocessor.
6. the synthesis body control system of the integrated OBD gateways as described in claim 1 to 5 is any, which is characterized in that described micro-
Processor is 32 microcontrollers.
7. the synthesis body control system of integrated OBD gateways as claimed in claim 6, which is characterized in that the connection vehicle body
The CAN bus data communication rate of network is 250k/s, and the CAN bus data communication rate of connection OBD gateways is 250k/s, even
The CAN bus data communication rate for connecing power network is 500k/s.
8. the synthesis body control system of integrated OBD gateways as claimed in claim 6, which is characterized in that the Body Control
Device module and tire pressure monitoring module share a piece of wireless receiving chip and antenna.
9. the synthesis body control system of integrated OBD gateways as claimed in claim 8, which is characterized in that the wireless receiving
Corresponding wireless center frequency point is 433.92MHz or 315MHz when chip and Antenna Operation.
10. the synthesis body control system of integrated OBD gateways as claimed in claim 8, which is characterized in that the wireless receiving
Chip is the TDA5235 of Infineon.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820065286.5U CN207711984U (en) | 2018-01-16 | 2018-01-16 | A kind of synthesis body control system of integrated OBD gateways |
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| CN201820065286.5U CN207711984U (en) | 2018-01-16 | 2018-01-16 | A kind of synthesis body control system of integrated OBD gateways |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108099826A (en) * | 2018-01-16 | 2018-06-01 | 山东省科学院自动化研究所 | A kind of synthesis body control system of integrated OBD gateways |
| CN111162982A (en) * | 2018-11-08 | 2020-05-15 | 湖南中车时代电动汽车股份有限公司 | Power system CAN network topological structure and new energy automobile |
| CN114167790A (en) * | 2021-12-14 | 2022-03-11 | 航天科技控股集团股份有限公司 | Distance program control vehicle device based on PowerPC framework |
-
2018
- 2018-01-16 CN CN201820065286.5U patent/CN207711984U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108099826A (en) * | 2018-01-16 | 2018-06-01 | 山东省科学院自动化研究所 | A kind of synthesis body control system of integrated OBD gateways |
| CN111162982A (en) * | 2018-11-08 | 2020-05-15 | 湖南中车时代电动汽车股份有限公司 | Power system CAN network topological structure and new energy automobile |
| CN114167790A (en) * | 2021-12-14 | 2022-03-11 | 航天科技控股集团股份有限公司 | Distance program control vehicle device based on PowerPC framework |
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