Method for detecting and analyzing radiated electromagnetic interference of wiring harnesses of power conversion system of automobile

A technology for transforming systems and automotive power supplies, which is applied in the direction of measuring electrical variables, measuring electricity, and measuring devices. It can solve problems such as radiation and electromagnetic interference that have not yet been seen, and achieve the effects of easy operation, strong versatility, and compact steps.

Inactive Publication Date: 2011-12-14
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are few studies on the electromagnetic compatibility of hybrid electric vehicles or pure electric vehicles, and most of the only studies focus on the establishment of interference models, and there is no research on how to analyze and detect the problem of radiated electromagnetic interference.

Method used

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  • Method for detecting and analyzing radiated electromagnetic interference of wiring harnesses of power conversion system of automobile
  • Method for detecting and analyzing radiated electromagnetic interference of wiring harnesses of power conversion system of automobile
  • Method for detecting and analyzing radiated electromagnetic interference of wiring harnesses of power conversion system of automobile

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Embodiment Construction

[0020] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

[0021] Here, the specific implementation of the method of the present invention is described by taking the wire harness radiation electromagnetic interference detection of a DC / DC power conversion system of a domestic hybrid vehicle as an example. Such as figure 1 and figure 2 As shown, the radiated electromagnetic interference detection and analysis method of the automobile power conversion system wiring harness of the present invention comprises the following steps:

[0022] 1) In accordance with the test environment for radiated emissions of automotive electronic components specified in the CISPR25 standard, a test platform is built in a half-wave anechoic chambe...

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Abstract

The invention discloses a method for detecting and analyzing radiated electromagnetic interference of wiring harnesses of a power conversion system of an automobile. In the method, reasonable detecting steps are designed for detecting primary radiated interference wiring harnesses and detecting the distribution frequency band and size of the radiated electromagnetic interference generated by eachof the wiring harnesses, so as to direct engineering technical personnel to eliminate the radiated electromagnetic interference of the wiring harnesses of the power conversion system and to conveniently implement the excellent electromagnetic compatibility design for the wiring harnesses of the power conversion system. The method disclosed by the invention has the advantages that the steps are compact and the implementation is convenient.

Description

technical field [0001] The invention relates to the technical field of radiated electromagnetic interference, in particular to a method for detecting and analyzing radiated electromagnetic interference of a wire harness of a vehicle power conversion system of a hybrid electric vehicle / pure electric vehicle. Background technique [0002] In recent years, electronic products have been widely used in automobiles, making the electromagnetic compatibility problem of automobile electrical and electronic systems more and more severe. This problem is particularly important in hybrid electric vehicles and pure electric vehicles. If there is no good electromagnetic compatibility between the on-board equipment, it will not only affect the normal operation of the equipment, but even affect the safe driving of the vehicle in severe cases. Therefore, it is solved The electromagnetic compatibility of hybrid electric vehicles / pure electric vehicles is an urgent issue. [0003] The power d...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 安宗裕汪泉弟孙宏许珂
Owner CHONGQING UNIV
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