Domain-architecture vehicle network system of electric vehicle, domain co-processing method and domain control device

Abstract

The invention relates to the technical field of electric vehicles, and in particular relates to a domain-architecture vehicle network system of an electric vehicle, a domain co-processing method and adomain control device. The domain-architecture vehicle network system of the electric vehicle comprises a vehicle switching device, a vehicle backbone network, an energy domain control device and a sub-network system thereof, a power chassis domain control device and a sub-network system thereof, a vehicle body domain control device and a sub-network system thereof, an intelligent / auxiliary driving domain control device and a sub-network system thereof, and an infotainment domain control device and a sub-network system thereof; the vehicle switching device is connected with the various domaincontrol devices through the vehicle backbone network; the various domain control devices are separately connected with the system thereof in the domain through respective vehicle sub-networks; the vehicle switching device manages interaction of the various domain control devices by adopting the domain co-processing method; and thus, cross-domain function implementation is realized. According to the domain-architecture vehicle network system of the electric vehicle, the domain co-processing method and the domain control device disclosed by the invention, implementation of multifunctional system integration of vehicles can be obviously improved; simultaneously, network congestion and delay problems are effectively inhibited; and the vehicle control reliability and real-time performance areimproved.

Description

technical field [0001] The present invention relates to the technical field of electric vehicles, in particular to a domain architecture vehicle network system of electric vehicles, a domain collaborative processing method and a domain control device. Background technique [0002] With the continuous improvement of people's demand for energy saving, environmental protection and safety, the research and development of intelligent and networked high-performance electric vehicles has become a new trend. Compared with traditional electric vehicles, intelligent and networked high-performance electric vehicles improve energy efficiency, Green travel and driving safety have great advantages, and have become a hot spot for research and development. However, on the other hand, the application of a large number of electronic control systems with different functions has brought new challenges, such as the obvious increase in the differentiation of data transmission requirements, such ...

AI Technical Summary

Problems solved by technology

Due to the influence of the data packet length (the maximum data field length of CAN is 8 bytes) and the transmission rate (the maximum transmission rate of CAN is 1Mbits / s), the control function of intelligent and networked high-performance electric vehicles is directly placed It is not only difficult to implement in the existing vehicle network system, but also will inevitably cause problems such as network congestion and network delay, which will affect the reliability and real-time performance of vehicle control, and bring great safety hazards to vehicle operation.

Traditional in-vehicle network systems can no longer meet the actual needs of intelligent, networked high-performance electric vehicles

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