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Automobile wire harness crosstalk pre-estimation method

An automotive wiring harness and pre-estimation technology, which is applied in the field of pre-estimation of automotive wiring harness crosstalk, and can solve problems such as inability to measure

Inactive Publication Date: 2015-05-13
CHANGCHUN UNIV OF TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The actual measurement of the unit length distribution parameters of the transmission line is the most accurate, but it cannot be measured until the automotive wiring harness is produced

Method used

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  • Automobile wire harness crosstalk pre-estimation method
  • Automobile wire harness crosstalk pre-estimation method
  • Automobile wire harness crosstalk pre-estimation method

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Embodiment Construction

[0041] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0042] The present invention takes the automobile wiring harness as an example, predicts the distributed capacitance and distributed inductance values ​​of the wiring harness by the PSO-BP algorithm and records the corresponding wiring harness design parameters, and then optimizes the design parameters through the simplex algorithm to obtain the minimum distributed capacitance and inductance value per unit length The product of the multi-conductor transmission theory is used to obtain the pre-estimated value of crosstalk, and then compare it with the standard value specified by the industry to determine whether the electromagnetic compatibility meets the standard. The method of the present invention takes the real data collected by the experiment as sample data, performs statistics, analysis, and integration on the sample data, and establishes a pre-estimation...

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Abstract

The invention relates to the technical field of automobile wire harness electromagnetic compatibility, and provides an automobile wire harness crosstalk pre-estimation method. According to the method, distributed capacitance and inductance of a wire harness are pre-estimated through a PSO-BP algorithm, corresponding wire harness design parameters are recorded, then the design parameters are optimized through a simplex algorithm to obtain the product of the minimum distributed capacitance and inductance per unit length, and the crosstalk pre-estimation value is obtained through a multi-conductor transmission theory and is compared with the standard value specified by the industry so as to determine whether the electromagnetic compatibility meets the standard or not. According to the method, real data collected by an experiment serve as sample data, statistics, analyzing and integration are conducted on the sample data, on the base of this, a pre-estimation model of the automobile wire harness crosstalk value based on the PSO-BP algorithm is built, the design parameters of the automobile wire harness are optimized through the simplex algorithm, the crosstalk value of the wire harness is reduced accordingly, and certain theory guidance is provided for design of the automobile wire harness so as to enable the electromagnetic compatibility of the automobile wire harness to meet the standard.

Description

technical field [0001] The invention relates to the technical field of electromagnetic compatibility of automobile wire harnesses, in particular to a method for pre-estimating crosstalk of automobile wire harnesses. Background technique [0002] In recent years, automobile technology has been developing towards electronics and intelligence. There are more and more electronic devices on cars, from complex engine and brake controls to automatic radio equipment and interior temperature control systems. The increasing number and types make the electromagnetic environment in the car more and more complex, various electromagnetic interference problems appear, and the consequences of electromagnetic interference are becoming more and more serious. Therefore, the research on electromagnetic compatibility of automotive electronic equipment is becoming more and more important. [0003] Electromagnetic compatibility means that a device or system operates in compliance with the requirem...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 李慧孙文杰张锡斌王海云宋杰陈姝慧于强强刘伟东
Owner CHANGCHUN UNIV OF TECH
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