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A data analysis method of vehicle bus based on matlab/simulink

An on-board bus and data analysis technology, applied in the direction of bus network, data exchange network, data exchange through path configuration, etc. Effect

Active Publication Date: 2022-07-12
ZHEJIANG UFO AUTOMOBILE MFG CO LTD +1
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Problems solved by technology

Patent No. 201610181331.9 discloses a bus message analysis method based on CAN communication, which intuitively parses CAN hexadecimal data into decimal physical values. This solution can only analyze CAN bus messages, but cannot complete bus reports. Mathematical operation and algorithm development of text data

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  • A data analysis method of vehicle bus based on matlab/simulink
  • A data analysis method of vehicle bus based on matlab/simulink

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example 1

[0044] Use the vehicle bus message data to analyze the power of the vehicle while driving. The specific steps are as follows:

[0045] CAN communication of vehicle bus, load CAN bus message into Matlab workspace;

[0046] Filter all rows containing the target ID corresponding to the total current I in the data field of the bus message;

[0047] Calculate the total duration of the t bus message by the length of the line [I] * T bus message cycle, set the duration as the Simulink module running time, and create a time array of I [It] = [T bus message cycle: T bus Message period: t total duration];

[0048] According to the bus message format and the bus message specification I 物理值 =I 初始值 +I 总线值 *Precision + offset, realize the analysis of bus message bus value to physical value, and create an array I signal =[I siganl ], merge [I t ] and [I signal ]Generator matrix[I t , I signal ]; Similarly, the matrix corresponding to the total voltage V is generated [V t , V sign...

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Abstract

The invention relates to the technical field of automobiles, in particular to a data analysis method of an on-board bus based on MATLAB / Simulink, which includes first selecting a communication mode of the on-board bus, determining a corresponding analysis method according to the selected communication mode; The message is sent to the MATLAB workspace; the parameters and meanings contained in the bus message are analyzed by the corresponding analysis algorithm according to the loaded bus message and the corresponding communication specification, and a matrix [t, signal] is established; read in the Simulink module Take the matrix [t, signal] that needs to be processed; output, display, and save the parsed data according to user requirements to facilitate the secondary processing of the data in the workspace of MATLAB, the present invention does not require a special network development environment, and utilizes the Matlab&Simulink environment, Analyzing bus data, by configuring the bus mode, it supports the analysis of multiple bus data, instead of only supporting a single bus communication, the data of the bus message can be re-developed, and the data processing capability is enhanced.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a data analysis method of a vehicle-mounted bus based on MATLAB / Simulink. Background technique [0002] With the gradual development of the various control modules of the automobile in the direction of automation and intelligence, the automobile electrical system has become increasingly complex. The traditional point-to-point communication method cannot meet the development of modern automobiles and the ever-increasing requirements of modern society for automobile safety and ride comfort. In automotive design, in-vehicle bus technology is the best solution to meet these requirements and has been widely used. These in-vehicle buses include networks such as CAN, LIN, FlexRay, and Ethernet. Each control module exchanges data through the vehicle bus, and the data on the bus includes the control instructions, operating status, and fault information of the vehicle control module. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L69/22H04L69/18H04L12/40
CPCH04L69/22H04L69/18H04L12/40006H04L2012/40215H04L2012/40273Y02D10/00
Inventor 张飞逯全燕李峰张文峰李秀娟
Owner ZHEJIANG UFO AUTOMOBILE MFG CO LTD
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