Method for testing electro-magnetic compatibility of automotive CAN (controller area network) buses based on semi-physical simulation

A CAN bus, hardware-in-the-loop simulation technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems that cannot fully simulate and reflect the electromagnetic interference conditions in the car CAN bus

Active Publication Date: 2012-10-03
BEIHANG UNIV
View PDF2 Cites 69 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, simply using the ISO7637-3 standard test waveform for the test cannot completely simulate and reflect the electromagnetic interference in the vehicle that the actual vehicle CAN bus receives
Usually, the EMC test of the automotive CAN bu

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for testing electro-magnetic compatibility of automotive CAN (controller area network) buses based on semi-physical simulation
  • Method for testing electro-magnetic compatibility of automotive CAN (controller area network) buses based on semi-physical simulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will be further described below in conjunction with accompanying drawing.

[0020] The present invention is a kind of automobile CAN bus electromagnetic compatibility performance test method based on hardware-in-the-loop simulation, the instrument that constitutes the interference source simulator has arbitrary waveform signal generator, power amplifier, directional coupler, power meter and current injection probe; Monitoring device The instrument has a receiving antenna, a current monitoring probe, and a spectrum analyzer; the digital simulation system includes MATLAB / Simulink, circuit simulation tools ADS, VC, SQL Server, and electromagnetic simulation analysis software; the video display system includes a video monitor, a computer, and a large screen. monitor.

[0021] The present invention is a kind of automobile CAN bus electromagnetic compatibility performance test method based on hardware-in-the-loop simulation, such as figure 1 shown, incl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a method for testing electro-magnetic compatibility of an automotive CAN (controller area network) bus based on semi-physical simulation, belonging to the technical field of design and development of electro-magnetic compatibility of an automobile. The method comprises the following steps: step 1. building an automotive empty shell table frame of which the full size is 1:1 according to the actual situation of the electro-magnetic compatibility of the automobile; step 2. simulating and injecting the interference signals; step 3. monitoring the response of the automotive CAN bus on the interference signals; step 4. estimating the EMC (electro-magnetic compatibility) property of the CAN bus by using an estimating system; and step 5. observing the electro-magnetic compatibility of the automotive CAN bus in real time. With the adoption of the method, the shortcoming of the traditional method for testing the electro-magnetic compatibility of the automotive CAN bus is made up. Based on a forecasting platform of the semi-physical simulation of the electro-magnetic compatibility, research staff can implement the electro-magnetic compatibility design at various development stages such as the scheme formulating, sample manufacturing, sample testing, and testing of the system, so that the problems that the traditional electro-magnetic compatibility design is not complete and the electro-magnetic compatibility rectification has no effect can be solved.

Description

technical field [0001] The invention belongs to the technical field of automobile electromagnetic compatibility design and development, in particular to an automobile CAN bus electromagnetic compatibility performance test method based on hardware-in-the-loop simulation. This method can more accurately reflect the real electromagnetic environment of the automobile CAN, and is more conducive to the electromagnetic compatibility rectification of the automobile CAN bus. Background technique [0002] CAN is the abbreviation of Controller Area Network, that is, Controller Area Network, which is a kind of multiplex transmission system. Its good cost performance and reliability have been widely used in recent years. The emergence of CAN data bus effectively solves the defects of too many wiring harnesses in traditional automobiles, too large volume, and a large number of control signals in the integrated control system that cannot be exchanged in real time. It is widely used in the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01R31/00
Inventor 戴飞邵鑫磊包贵浩苏东林
Owner BEIHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap