Intelligent automobile information flow redundancy safety control system based on chassis domain controller

Abstract

The invention provides an intelligent automobile information flow safety redundancy control system based on a chassis domain controller. The chassis domain controller realizes interaction with external information flow through a redundancy signal channel, and the redundancy signal channel comprises a transverse cooperative control unit, a longitudinal cooperative control unit, a safety redundancy unit and diagnosis / fault redundancy, wherein the transverse cooperative control unit, the longitudinal cooperative control unit and the safety redundancy unit are directly linked to a main control chip of a core operation unit. According to the system, information flow on a chassis is re-integrated based on the concept of chassis dynamics domain control, meanwhile, a redundant interaction interface of chassis information and intelligent driving related information is re-defined for a future intelligent automobile framework, and through a high-reliability domain controller and a redundant safety information flow channel, and by combining encryption and verification technologies, redundant control of each execution mechanism of the chassis is realized, hierarchical management and signal verification of an automatic driving function module, redundant control of a whole vehicle signal and whole vehicle information flow verification work are realized, and the information safety of the whole vehicle is ensured.

Description

technical field [0001] The invention belongs to the technical field of automatic driving control, in particular to a chassis domain controller-based intelligent vehicle information flow redundancy safety control system. Background technique [0002] In the traditional vehicle electronic / electrical architecture, distributed ECUs are often used to regulate various functions of the vehicle, such as ABS integrated with brakes, ESC, steer-by-wire, engine / motor electronic control, BMS and other systems. It is connected by multi-channel CAN (controller area network) bus technology. Whenever new equipment or functions need to be added, a new ECU node is added to the corresponding CAN bus to realize new functions. At the same time, for the CAN communication between different bus nodes, it is necessary to design a separate CAN forwarding gateway, and it is necessary to design and store the fault information of each node, and use it for vehicle fault diagnosis through a special fault d...

AI Technical Summary

Problems solved by technology

[0004] At present, the wiring harness link of the existing decentralized architecture of the whole vehicle is relatively complicated. Every time a new function is added, a new ECU needs to be added. Moreover, with the continuous development of automobile technology, various new auxiliary driving functions require braking, steering, etc. , Driving the coordinated control of multiple systems, the problems of common decision-making and joint regulation in the bus coordination process, the coordination control is difficult to achieve

At the same time, in the face of the existing autonomous driving situation, there are more problems such as difficulty in modification, difficulty in coordinating the execution instructions of autonomous driving and the underlying executive control mechanism, and if the underlying controller opens a proprietary interface for autonomous driving, problems such as network security, chassis execution, etc. Institutional secondary regulation and other related safety issues

All in all, the traditional decentralized control of the chassis is difficult to meet the increasing functional requirements on current vehicles and the safety requirements required by future autonomous vehicle architectures

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