A vehicle communication system

Abstract

The invention discloses a vehicular communication system. The system comprises a vehicle-mounted system, an MCU, a vehicle auxiliary control system and a vehicle body system, wherein the vehicle-mounted system comprises a user operation panel, a vehicle-mounted system kernel module and a display screen; the MCU is connected with the vehicle-mounted system kernel module through a first local area bus, and is also connected with the vehicle-mounted system kernel module through a first local area CAN receiving path; the vehicle auxiliary control system is connected with the MCU through a second local area bus, and is also connected with the MCU through a second local area CAN receiving path; and the vehicle body system is connected with the vehicle auxiliary control system through a CAN sending path. According to the scheme of the invention, the vehicle-mounted system of an intelligent vehicle exposed on an Internet side is isolated from the vehicle body system, user operations are forwarded by the MCU, and thus the security problem caused by network hackers through virtual user behaviors can be prevented, and the network security protection of the intelligent vehicle can be achieved;and the vehicular communication system disclosed by the invention is provided with an independent vehicle control auxiliary system, the vehicle can be protected from network attacks, and the safety of vehicle driving can be ensured.

Description

technical field [0001] The present invention relates to the field of vehicle safety, and more specifically, relates to a vehicle communication system. Background technique [0002] At present, due to the rise of smart vehicles, the on-board system is completely exposed to the Internet, and because the on-board system itself may need to obtain vehicle information or control some functions of the vehicle, the vehicle is completely exposed to the Internet, and most of the smart on-board systems allow users to autonomously Software installation, software security level and vulnerability risks cannot be fully controlled. [0003] The method for solving the above problems in the prior art is usually that the vehicle-mounted system is directly connected with the vehicle control port through the CAN (Controller Area Network, Controller Area Network) port, such as figure 1 As shown, or the vehicle-mounted system sends an instruction to another MCU (Microcontroller Unit, micro-contro...

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Problems solved by technology

[0004] figure 1 In the scheme shown, the direct connection between the vehicle system and the vehicle body is tantamount to exposing the security of the vehicle body directly to the Internet, which is extremely risky; figure 2 In the solution shown, the on-board system is connected to the vehicle body through MCU filtering through the local bus. Although the MCU performs a layer of filtering on the control commands sent to the vehicle body, which greatly enhances the safety performance of the vehicle, it cannot completely avoid interconnection. Cyber ​​attacks on vehicle systems

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