AU2017100661A4 - An information security method of distributed electric vehicle controllers - Google Patents
An information security method of distributed electric vehicle controllers Download PDFInfo
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- AU2017100661A4 AU2017100661A4 AU2017100661A AU2017100661A AU2017100661A4 AU 2017100661 A4 AU2017100661 A4 AU 2017100661A4 AU 2017100661 A AU2017100661 A AU 2017100661A AU 2017100661 A AU2017100661 A AU 2017100661A AU 2017100661 A4 AU2017100661 A4 AU 2017100661A4
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- electric vehicle
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- vehicle controllers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Small-Scale Networks (AREA)
- Selective Calling Equipment (AREA)
Abstract
Abstract The invention relates to an information security method of distributed electric vehicle controllers. According to the information security method, embedded MCUs and CAN transceivers are added to the electric vehicle controllers, the embedded MCUs and the CAN transceivers are connected with each other in the electric vehicle controllers, the embedded MCUs are connected with existing master MCUs in respective electric 5 vehicle controllers to constitute communication units in the corresponding electric vehicle controllers, the communication units are connected through the respective CAN transceivers to form distributed architecture for receiving and transmitting CAN information, and encryption and decryption algorithms are built in the embedded MCUs of the communication units for encrypting and decrypting the CAN information in real time and performing security isolation and protection. By the adoption of the information security method provided 10 by the present invention, the data information transmission of an electric vehicle controller network can be monitored and controlled in real time, and the security monitoring and protection of the CAN information are effectively guaranteed. Master MCU Master MCC Embedded CAN CAN Embedded MCU transceiver , , transceiver MCU Encryption Ecyto d decryption and decryption algorithmaloih Communicati-on unit i :Comunication unit j Fiig. 1 Master MCU Master MCU Embedded CAN CAN Embedded MCC transceiver * * transceiver MCU White box White box encryption -encryption algorithm algorithm Communication unit : :Comunication unit n Fig. 1
Description
An Information Security Method of Distributed Electric Vehicle Controllers
Field of the Invention 2017100661 06 Jun2017
The invention relates to the secure communication strategies of vehicle-mounted local area networks, and 5 particularly relates to an information security method of distributed electric vehicle controllers.
Background of the Invention
With the vigorous promotion and use of electric vehicles, the rapid development of function diversification and integration of the electric vehicles and the industrialization of the electric vehicles, the increase and application 10 of various vehicle-mounted electronic devices are popularized in the mass market. The function of a high voltage system is to ensure the transmission of the power energy of the full vehicle system of the electric vehicle and to detect insulation faults, open circuit faults, ground faults, high voltage faults and the like of the entire high voltage system at any time, the main task is to ensure the security of device and personnel, and the high voltage system is also one of the key technologies of the industrialization of the electric vehicles. The 15 electric vehicle has a high voltage system, while related high voltage controllers and battery management affect the secure operation of the electric vehicle, and a full vehicle controller of the electric vehicle mainly exchanges data with a motor controller, a battery management system, a clutch actuator, a driving switch, a brake pedal, an acceleration pedal and an engine ECU (Electronic Control Unit) and the like, therefore, the security risks and security protection measures of die electric vehicle controllers are particularly important. 20
However, at present, the controllers of the electric vehicle realize the transmission of all the data just via two twisted pairs, the security of CAN information of an electric vehicle controller system cannot be guaranteed yet, the communication information between the controllers lacks encryption, resulting in that, for example, precision components and parts of the vehicle-mounted electronic device are damaged by electromagnetic 25 impact easily, thereby being manually attacked and damaged easily and being even used for illegally stealing private information, which leads to leakage of driving electronic control information, decoding of a vehicle locking password and other serious consequences. In view of the above-mentioned problems, there is no effective solution at present. 30 Summary of the Invention
The invention provides an information security method of distributed electric vehicle controllers in view of the problems that the security of CAN information of the existing electric vehicle controllers cannot be ensured and that private information is illegally stolen front the communication information between the controllers very easily, resulting in leakage of driving electronic control information, decoding of vehicle locking 35 passwords, etc. Embedded MCUs and CAN transceivers are added to the electric vehicle controllers and constitute corresponding communication units with master MCUs, the communication units can be further connected through the respective CAN transceivers to form distributed architecture for receiving and transmitting the CAN information, the embedded MCU of a built-in encryption and decryption algorithm is effectively used for encrypting and decrypting the CAN information in real time and performing security 40 isolation and protection of a “firewall”, and the real-time CAN information of the controllers is monitored and protected, thereby ensuring the security and the accuracy of real-time data transmission of an electric vehicle controller network.
The technical solutions of the present invention are as follows: 45 An information security method of distributed electric vehicle controllers is used for realizing the information security of electric vehicle controllers arranged in an electric vehicle controller network in a distributed manner, wherein embedded MCUs and CAN transceivers are added to the electric vehicle controllers, the embedded l MCUs and the CAN transceivers are connected with each other in the electric vehicle controllers, the embedded MCUs are connected with existing master MCUs in respective electric vehicle controllers to constitute communication units in the corresponding electric vehicle controllers, the communication units are connected through the respective CAN transceivers to form distributed architecture for receiving and 5 transmitting CAN information, and encryption and decryption algorithms are built in the embedded MCUs of the communication units for encrypting and decrypting the CAN information in real time and performing security isolation and protection. 2017100661 06 Jun2017
The CAN transceivers in the communication units are connected with each other through corresponding CAN 10 twisted pairs.
The embedded MCUs in the communication units are connected with the existing master MCUs in the communication units through SPI accesses to guarantee the instantaneity of the communication between the electric vehicle controllers. 15
The encryption and decryption algorithm is a white box encryption algorithm.
The encryption and decryption algorithm is a static encryption algorithm or a black box encryption algorithm. 20 An information security system of distributed electric vehicle controllers is used for realizing the information security of electric vehicle controllers arranged in an electric vehicle controller network in a distributed manner, and includes master MCUs arranged in the electric vehicle controllers, wherein the information security system further includes embedded MCUs and CAN transceivers arranged in the electric vehicle controllers, encryption and decryption modules are built in the embedded MCUs, the embedded MCUs and the CAN 25 transceivers are connected with each other in the electric vehicle controllers, the embedded MCUs are connected with the master MCUs in respective electric vehicle controllers to constitute communication units in the corresponding electric vehicle controllers, the communication units are connected through the respective CAN transceivers to form distributed architecture for receiving and transmitting CAN information, and the encryption and decryption modules in the embedded MCUs of the communication units encrypt and decrypt 30 the CAN information in real time and perform security isolation and protection.
The CAN transceivers in the communication units are connected with each other through corresponding CAN twisted pairs. 35 The embedded MCUs in the communication units are connected with the master MCUs in the communication units through SPI accesses to guarantee the instantaneity of the communication between the electric vehicle controllers.
The encryption and decryption module is a white box encryption module. 40
The encryption and decryption module is a static encryption module or a black box encryption module.
The technical effects of the present invention are as follows:
According to the secure communication method of the integrated and distributed electric vehicle controllers 45 involved in the present invention, as the embedded MCUs (Microcontroller Unit) and the CAN transceivers are added to the electric vehicle controllers, the embedded MCUs and the CAN transceivers and the existing master MCUs (Microcontroller Unit) in respective electric vehicle controllers together constitute the 2 communication units in the corresponding electric vehicle controllers, the communication between the electric vehicle controllers is realized by the CAN transceivers in the communication units by receiving and transmitting the CAN information, and the encryption and decryption algorithms are built in the embedded MCUs of the communication units for encrypting and decrypting the CAN information in real time and 5 performing security isolation and protection. According to the secure communication method provided by the present invention, a firewall isolation and protection function is effectively realized by die embedded MCUs, the encryption and decryption algorithms are built in the embedded MCUs for encrypting the data information transmission of the electric vehicle controllers in real time, that is, monitoring and processing the CAN information of the controllers in real time, thereby effectively defending the breaking and decoding of sensitive 10 driving information and keys, accordingly the decoding and leakage of sensitive data information are avoided, various problems, such as leakage of driving electric control information, decoding of vehicle locking passwords, resulting from the fact that the transmission of all the data is directly realized by just two twisted pairs in the communication of the existing electric vehicle conuollers are avoided, and the security and the accuracy of data transmission of the electric vehicle controller system are improved. 2017100661 06 Jun2017 15
Further, according to the secure communication method provided by the present invention, the communication units are connected through the respective CAN transceivers to form the distributed architecture for receiving and transmitting the CAN information, the communication units are deployed in a distributed manner, the real-time CAN communication between the communication units is effectively realized by the embedded 20 MCUs and the CAN transceivers, and the instantaneity, independence and security' of data transmission are guaranteed in combination with the built-in encryption and decryption algorithms, particularly the white box encryption algorithms. Preferably, the embedded MCUs and the master MCUs in the communication units are connected through the SPI accesses, namely, SPI communication is adopted, thereby guaranteeing the instantaneity of the communication between the electric vehicle controllers and guaranteeing the security 25 control function of the CAN information.
The invention further relates to an information security system of distributed electric vehicle controllers, including master MCUs, embedded MCUs and CAN transceivers, which are connected with each other in sequence in the electric vehicle controllers in an electric vehicle controller network, wherein the master MCUs, 30 die embedded MCUs and the CAN transceivers constitute communication units in the corresponding electric vehicle controllers, encryption and decryption modules are built in the embedded MCUs, the CAN transceivers of the communication units receive and transmit CAN information between the electric vehicle controllers, and the encryption and decryption modules encrypt and decrypt the CAN information in real time and perform security isolation and protection. The information security system involved in the present invention 35 corresponds to the above-mentioned information security method of the distributed electric vehicle controllers, it can be interpreted as the information security system used for realizing the above-mentioned information security method of the distributed electric vehicle controllers provided by the present invention, and the information security system is simple in structure and high in practicability, and is able to realize effective security protection of keys and sensitive data information, realize a firewall isolation function, guarantee the 40 security and the accuracy of real-time data transmission and provide better stability and security for the new-generation electric vehicle controller sy stems.
Brief Description of the Drawings
Fig. 1 is a working principle diagram of an information security method of distributed electric vehicle 45 controllers of the invention.
Fig. 2 is a preferred working principle diagram of an information security method of distributed electric vehicle controllers of the invention. 3
Fig. 3 is a structural schematic diagram of an information security system of distributed electric vehicle controllers of the invention. 2017100661 06 Jun2017
Fig. 4 is a preferred structural schematic diagram of an information security system of distributed electric vehicle controllers of the invention. 5
Reference signs are shown in the drawings as follows: 1-CAN twisted pair; 2-SP1 access.
Detailed Description of the Invention 10 The invention will be illustrated below in combination with the accompanying drawings.
The invention discloses an information security method of distributed electric vehicle controllers, used for realizing the information security of electric vehicle controllers arranged in an electric vehicle controller network in a distributed manner. As shown in Fig. 1, embedded MCUs and CAN transceivers are added to the 15 electric vehicle controllers, the embedded MCUs and the CAN transceivers are connected with each other in the electric vehicle controllers, the embedded MCUs are connected with existing master MCUs in respective electric vehicle controllers, the master MCUs, the embedded MCUs and the CAN transceivers constitute communication units in the corresponding electric vehicle controllers together (only a communication unit i and a communication unit j are shown in Fig. 1), the communication units (e.g., the communication unit i and 20 the communication unit j in Fig. 1) are connected through the respective CAN transceivers to form distributed architecture for receiving and transmitting CAN information, and encryption and decryption algorithms are built in the embedded MCUs of the communication units for encrypting and decrypting the CAN information in real time and performing security isolation and protection. According to the information security method provided by the present invention, the embedded MCUs with the built-in encryption and decryption algorithms 25 receive and decrypt input information, eliminate garbage/harmful information and encrypt output information, die built-in encryption and decryption algorithms can be static encryption algorithms, black box encryption algorithms or white box encryption algorithms, particularly when the built-in white box encryption algorithms are adopted, any white box encryption algorithm can be adopted, for example, a white box AES algorithm or a white box DES algorithm or reformation of the existing white box encryption algorithm, based on the 30 calculation of an encryption function in insecure environments, encryption keys are hidden in a series of data tables, and the information among the embedded MCUs, the master MCUs and the CAN transceivers is encrypted, thereby greatly enhancing the security protection of the keys and the sensitive data, effectively solving the problem that information transmission is prone to white box breaking in the electric vehicle controller network, avoiding the decoding and leakage of sensitive data information and guaranteeing the 35 security and the accuracy of real-time data transmission of the electric vehicle controller network.
Fig. 2 show's a preferred working principle diagram of the information security method of the distributed electric vehicle controllers disclosed by the present invention, in the embodiment, the electric vehicle controller network includes a plurality of communication units 1—n, the embedded MCUs and the CAN 40 transceivers are added to the communication units, the embedded MCUs and the CAN transceivers are connected with each other in the electric vehicle controllers, the embedded MCUs are connected with the master MCUs in respective electric vehicle controllers to constitute the communication units in the corresponding electric vehicle controllers, and preferably, the embedded MCUs in the communication units are connected with the existing master MCUs in the communication units through SPI accesses 2 so as to 45 guarantee the communication instantaneity between the embedded MCUs and the master MCUs of the electric vehicle and the security protection of the CAN information; according to the information security method as shown in Fig. 2, the white box encryption algorithm is adopted, the white box encryption algorithms are built 4 in the embedded MCUs for encrypting and decrypting die CAN information in real time and performing security isolation and protection, the security of real-time information transmission among the controllers is guaranteed, and meanwhile a firewall, namely a security isolation and protection function is realized; moreover, the communication units are connected with each other through the respective CAN transceivers to form the 5 distributed architecture for receiving and transmitting the CAN information, and the CAN transceivers are connected with each other through corresponding CAN twisted pairs 1, namely the communication units of a full vehicle controller of the electric vehicle can realize the secure transmission of data information just via two CAN twisted pahs, therefore the number of transmission wiling harnesses and the number of corresponding devices are greatly decreased, and the installation space and cost of the transmission wiring 10 harnesses are effectively reduced; the communication units are connected with each other through the respective CAN twisted pairs 1 to form the distributed architecture, the communication units communicate with each other and work independently to form respective independent data flow works, thereby guaranteeing the security and the accuracy of real-time data transmission and providing better stability and security for the new-generation electric vehicle controller systems. 2017100661 06 Jun2017 15
The invention further discloses an information security system of distributed electric vehicle controllers, used for realizing the information security of electric vehicle controllers arranged in an electric vehicle controller network in a distributed manner, as shown in Fig. 3, the information security system includes master MCUs arranged in tire electric vehicle controllers, the information security system further includes embedded MCUs 20 and CAN transceivers arranged in the electric vehicle controllers, encryption and decryption modules are built in the embedded MCUs, the embedded MCUs and the CAN transceivers are connected with each other in the electric vehicle controllers, the embedded MCUs are connected with the master MCUs in respective electric vehicle controllers to constitute communication units in the corresponding electric vehicle controllers (only a communication unit i and a communication unit j are shown in Fig. 3), that is, the master MCUs, the 25 embedded MCUs and the CAN transceivers are connected in the communication units in sequence, the communication units (e.g., the communication unit i and the communication unit j in Fig. 1) are connected through the respective CAN transceivers to form distributed architecture for receiving and transmitting CAN information, and the encryption and decryption modules in the embedded MCUs of the communication units encrypt and decrypt the CAN information in real time and perform security isolation and protection. 30
Fig. 4 shows a preferred structural schematic diagram of the information security system of the distributed electric vehicle controllers disclosed by the invention. The information security system includes an electric vehicle controller network, the electric vehicle controller network includes plurality of communication units 1···η, the communication units respectively include the master MCUs, embedded MCUs and the CAN 35 transceivers therein, white box encryption modules are respectively built in the embedded MCUs, the embedded MCUs and the CAN transceivers are connected with each other in the electric vehicle controllers, the embedded MCUs are connected with the master MCUs in respective electric vehicle controllers to constitute the communication units in tire corresponding electric vehicle controllers, and preferably, the embedded MCUs in the communication units are connected with the existing master MCUs in the 40 communication units through the SPI accesses 2 so as to guarantee the communication instantaneity between the embedded MCUs and the master MCUs of the electric vehicle and the security protection of the CAN information, that is to say, the embedded MCUs and the master MCUs adopt SPI communication, the SPI communication architecture can effectively guarantee real-time information transmission, avoid the retardance and hysteresis of information transmission and meanwhile guarantee the security control of the CAN 45 information in the information security system of the present invention; moreover, the communication units are connected with each other through the respective CAN transceivers to form the distributed architecture for receiving and transmitting the CAN information, and the CAN transceivers are connected with each other 5 through corresponding CAN twisted pairs 1, the CAN transceivers receive and transmit the CAN information, meanwhile the corresponding white box encryption modules encrypt and decrypt the CAN information in real time and perform security isolation and protection, specifically, the embedded MCUs receive and decrypt input information, eliminate garbage/harmful information and encrypt output information; the information 5 monitored and processed by the master MCUs is output after being encrypted by the embedded MCUs, is transmitted by the CAN transceivers to CAN accesses (i.e., the CAN twisted pairs 1), and can be received by another communication unit finally; and the other communication unit can receive the CAN information transmitted by the CAN accesses (i.e., the CAN twisted pairs 1) through its CAN transceiver and input the CAN information to the master MCU for monitoring and processing after being decrypted by the embedded 10 MCU. The information security system of the distributed controllers provided by the present invention can monitor and control the data information transmission between the communication units in the electric vehicle controller network in real time, effectively defend the breaking and decoding to sensitive driving information and white boxes of the keys, protect the receiving and transmitting security of the sensitive driving information and guarantee the instantaneity and the security of the CAN information data. 2017100661 06 Jun2017 15
It should be noted that the specific embodiments described above may enable those skilled in the art to understand the present invention more fully, but do not limit the present invention in any way. Accordingly, although the present invention has been described in detail with reference to the drawings and the embodiments in the present specification, it should be understood by those skilled in the art that modifications 20 or equivalent substitutions can still be made to the present invention. In summary, all the technical solutions and improvements thereof made without departing from the spirit and scope of the present invention shall fall into the protection scope of the patent of the present invention. 6
Claims (5)
- Claims1. An information security method of distributed electric vehicle controllers, used for realizing the information security of electric vehicle controllers arranged in an electric vehicle controller network in a distributed manner, characterized in that embedded MCUs and CAN transceivers are added to the electric vehicle controllers, the embedded MCUs and the CAN transceivers are connected with each other in the electric vehicle controllers, the embedded MCUs are connected with existing master MCUs in respective electric vehicle controllers to constitute communication units in the corresponding electric vehicle controllers, the communication units are connected through the respective CAN transceivers to form distributed architecture for receiving and transmitting CAN information, and encryption and decryption algorithms are built in the embedded MCUs of the communication units for encrypting and decrypting the CAN information in real time and performing security isolation and protection.
- 2. The information security method of the distributed electric vehicle controllers according to claim 1, characterized in that the CAN transceivers in the communication units are connected with each other through corresponding CAN twisted pairs.
- 3. The information security method of the distributed electric vehicle controllers according to claim 1 or 2, characterized in that the embedded MCUs in the communication units are connected with the existing master MCUs in the communication units through SPI accesses to guarantee the instantaneity of the communication between the electric vehicle controllers.
- 4. The information security method of the distributed electric vehicle controllers according to claim 3, characterized in that the encryption and decryption algorithm is a white box encryption algorithm.
- 5. The information security method of the distributed electric vehicle controllers according to claim 3, characterized in that the encryption and decryption algorithm is a static encryption algorithm or a black box encryption algorithm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610584844.4 | 2016-07-22 | ||
| CN201610584844.4A CN106143364B (en) | 2016-07-22 | 2016-07-22 | A kind of electric car distributed director information security method and system |
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| Publication Number | Publication Date |
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| AU2017100661A4 true AU2017100661A4 (en) | 2017-07-20 |
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| AU2017100661A Ceased AU2017100661A4 (en) | 2016-07-22 | 2017-06-06 | An information security method of distributed electric vehicle controllers |
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| CN (1) | CN106143364B (en) |
| AU (1) | AU2017100661A4 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740569B (en) * | 2016-11-28 | 2019-07-02 | 安徽星凯龙客车有限公司 | A kind of whole-control system multipoint mode checking algorithm |
| CN106627443B (en) * | 2017-02-15 | 2017-12-26 | 北京航空航天大学 | A kind of T BOX protecting information safety methods based on vehicle feature safe class |
| CN108189689B (en) * | 2017-12-29 | 2021-07-16 | 智车优行科技（北京）有限公司 | Battery management device and method of integrated safety unit |
| CN109088848A (en) * | 2018-06-04 | 2018-12-25 | 佛吉亚好帮手电子科技有限公司 | A kind of intelligent network connection automobile information method for security protection |
| CN111314275A (en) * | 2019-11-09 | 2020-06-19 | 南京金龙客车制造有限公司 | Method for encrypting CAN (controller area network) of drive-by-wire chassis |
| CN112104608A (en) * | 2020-08-17 | 2020-12-18 | 华人运通(上海)云计算科技有限公司 | Vehicle information safety protection method, system and storage medium |
| CN112498268B (en) * | 2020-10-16 | 2021-12-17 | 山东派蒙机电技术有限公司 | Method for reducing power consumption of intelligent networked vehicle controller |
| CN115242530B (en) * | 2022-07-27 | 2023-10-13 | 常州星宇车灯股份有限公司 | Vehicle-mounted safety communication system and method based on national cryptographic algorithm and automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012160668A1 (en) * | 2011-05-25 | 2012-11-29 | トヨタ自動車株式会社 | Vehicle communication apparatus |
| CN202433771U (en) * | 2011-12-28 | 2012-09-12 | 上海詹佛斯信息科技有限公司 | Vehicle-mounted ECU (electronic control unit) information acquisition terminal |
| CN102750240B (en) * | 2012-06-29 | 2015-05-27 | 惠州市德赛西威汽车电子有限公司 | Channel extension method based on embedded MCU (Microprogrammed Control Unit) |
| JP5900390B2 (en) * | 2013-01-31 | 2016-04-06 | 株式会社オートネットワーク技術研究所 | Access restriction device, in-vehicle communication system, and communication restriction method |
| US10095634B2 (en) * | 2015-05-22 | 2018-10-09 | Nxp B.V. | In-vehicle network (IVN) device and method for operating an IVN device |
| CN105599709B (en) * | 2016-01-22 | 2018-11-30 | 上海蔚来科技有限公司 | Safety device and method for automotive bus system |
-
2016
- 2016-07-22 CN CN201610584844.4A patent/CN106143364B/en active Active
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| CN106143364B (en) | 2019-06-11 |
| CN106143364A (en) | 2016-11-23 |
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