Intelligent electric vehicle regional architecture vehicle-mounted networked control system and scheduling method

Abstract

The invention provides an intelligent electric vehicle regional architecture vehicle-mounted networked control system and a scheduling method, the system comprises a central computing unit and a regional control unit group which are connected through a network, and a software defined network (SDN) and time sensitive network (TSN) fusion scheduling logic framework is adopted. A global scheduling strategy command is generated in a centralized mode through an SDN controller and sent to a regional control unit, a regional scheduler in the regional control unit adopts a TSN mechanism, receives and executes a scheduling command from the SDN controller, manages all information in a single regional control unit, and sends the information to the SDN controller. Therefore, global scheduling management of communication is realized through upper and lower layer fusion of the SDN controller and the TSN mechanism, and the flexibility of system arrangement and the communication efficiency are improved. And a single sampling period of the system is decomposed into a plurality of sub-periods, and commands in the single sub-period are triggered by the same reference frame, so that the synchronism and the real-time performance of vehicle control are ensured.

Description

technical field [0001] The invention relates to the technical field of intelligent electric vehicles, in particular to an on-board networked control system and a scheduling method of an intelligent electric vehicle regional architecture. Background technique [0002] In recent years, with the rapid development of automobile intelligence, electrification, and networking, more and more electronic and electrical components have been introduced, and wiring has become more and more complex, which has brought huge challenges to the transmission of vehicle network information. The electrical architecture cannot meet the new development needs. The design of functional domain architecture and the design of cross-domain fusion architecture emerge one after another. The network topology between electronic control units has also become various, such as bus type, star type, ring type, token type. The resulting analysis methods are not completely unified, which brings new challenges and u...

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the rapid development of automobile intelligence, electrification, and networking trends, more and more electronic and electrical components have been introduced, and wiring has become more and more complicated, which has brought huge challenges to the transmission of vehicle network information. Traditional electronic The electrical architecture can’t meet the new development needs, the design of functional domain architecture and the design of cross-domain fusion architecture emerge in an endless stream, and the network topology between electronic control units has also become various, such as bus type, star type, ring type, token type, etc., and the subsequent analysis methods are not completely unified, which brings new challenges and uncertainties to the development of automotive electronics.

[0003] In order to further simplify the network wiring on the vehicle, save costs, and improve communication efficiency, a new generation of electrical and electronic architecture—area architecture is introduced. complexity, but there are also some problems at the same time. For example, the signal flow in a regional control unit is complex. There may be multiple signal flows such as radar signal flow, sensor signal flow, and audio and video flow. If they are directly sent to the central computing unit, it will cause channel Congestion, the synchronization between the control units in each area cannot be guaranteed, and the processing efficiency is not high, and the real-time performance is not strong

In addition, if some emergency handling orders cannot be responded in time, danger will occur, and the safety is not high.

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