Data transmission method and data reception method between controllers in vehicle network

A vehicle network and controller technology, applied in the direction of digital transmission system, transmission system, electrical digital data processing, etc., can solve the problems of controller installation, cost increase, data change, etc., to achieve easy change, prevent communication delay, and enhance safety. sexual effect

Active Publication Date: 2015-07-29
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this method, there is a problem that if direct access to the main line of CAN communication or the controller line is performed, the data may be changed.
However, in this method, there is a problem in that a separate encryption module needs to be installed for each controller, thereby increasing the cost
In addition, there is also a problem in that in the method of using a separate security module, arbitrary access to the security module can be performed by only hacking the security module
In addition, there is a problem in that when a failure occurs in the security module, it is impossible to communicate over the entire network

Method used

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  • Data transmission method and data reception method between controllers in vehicle network
  • Data transmission method and data reception method between controllers in vehicle network
  • Data transmission method and data reception method between controllers in vehicle network

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Embodiment Construction

[0049] Hereinafter, reference will be made in detail to various embodiments of the inventive concept, examples of which will be described below and illustrated in the accompanying drawings. While the inventive concept will be described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the inventive concept to those exemplary embodiments. On the contrary, the inventive concept covers not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments that may be included within the spirit and scope of the inventive concept defined by the claims.

[0050] figure 1 is a schematic diagram showing a state in which various types of communication signals in a controller that pose a danger to a driver during driving of a vehicle can be classified.

[0051] In an embodiment of the present inventive concept, when a communication signal related to the driving of a vehicle am...

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Abstract

A method for transmitting data between controllers in a vehicle network includes transmitting a first data code including an identification number. A second data code is transmitted including a length value of data codes to be transmitted. Data codes are transmitted by using the length value of the data codes to be transmitted. A random number and a position information value of the data codes to be transmitted are included in last and previously transmitted data codes.

Description

technical field [0001] The inventive concept relates to a network security method. More particularly, the inventive concept relates to a security method of a communication network in a vehicle. Background technique [0002] Due to the increase in vehicle electrical components, methods for transmitting and receiving signals through existing wiring schemes have reached the limits of their capabilities. In order to solve this problem, the current promotion is to use the Controller Area Network (CAN), namely Figure 8 The vehicle communication network shown in , transmits / receives data between controllers in the vehicle. [0003] Additionally, the controller uses Figure 9 The CAN communication data structure in. [0004] However, in the existing CAN communication, it is very likely that a hacker with malicious intent will access the CAN communication at will, thereby manipulating the data using only the Controller Area Network Database (CAN DB). [0005] A hacker with malic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/08
CPCH04L2209/24H04L9/0869H04L67/12H04L63/0435H04L63/083H04L63/107H04L63/1441H04L67/52H04L2209/84H04L63/1466G06F21/85G06F2221/2107H04L9/065
Inventor 朴成浚
Owner HYUNDAI MOTOR CO LTD
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