Multi-domain controller virtual machine data communication method and device based on vehicle-mounted Ethernet

Abstract

The invention provides a multi-domain controller virtual machine data communication method and device based on a vehicle-mounted Ethernet, and the device comprises a first multi-domain controller anda second multi-domain controller; the multi-domain controller comprises a hardware platform and a virtual machine manager located on the hardware platform, and a virtual machine operates on the virtual machine manager; the first multi-domain controller acquires data from a chassis domain and a power domain and analyzes and processes the data through a plurality of virtual machines; the second multi-domain controller acquires data from the intelligent driving domain, the information entertainment domain and the vehicle body domain and analyzes and processes the data through a plurality of virtual machines, and the virtual machines on the multi-domain controller communicate in a shared memory mode of a dynamic adjustable storage space. According to the method, the data between domains can beoperated independently and safely isolated, the efficiency can be improved, and the cost can be reduced.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a data communication method and device for multiple virtual machines under a multi-domain controller of a vehicle Ethernet. Background technique [0002] With the continuous increase in the functional requirements of automobiles for comfort, informatization, and intelligence, the electronic and electrical systems of automobiles are becoming more and more complex and large, and the Electronic & Electrical Architecture (EEA, Electronic & Electrical Architecture) has emerged as the times require. At the same time, the continuous development of automotive electronic and electrical technology has put forward requirements for EEA development such as platformization, modularization, evaluability, and variability. At this stage, the network architecture of automobiles is still based on the distributed architecture scheme based on CAN bus communication. Under this architecture, functional featu...

AI Technical Summary

Problems solved by technology

However, because the shared memory between virtual machines involves data communication between multiple virtual machines and there are several processes in each virtual machine, each process has different transient data processing capabilities and frequencies, and it only depends on allocating the remaining memory. obviously cannot meet this requirement

Such as patent CN103838633A, CN 109684042 A, CN 106598697A etc. still cannot solve this problem

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