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Dynamic measurement method of impact parameters of high-voltage wire harness collision

A high-voltage wire harness and dynamic measurement technology, which is applied in high resistance measurement, impact test, vehicle impact test, etc., can solve the problems of inability to judge the risk of insulation failure and inability to evaluate the dynamic change of insulation resistance, etc.

Active Publication Date: 2021-07-23
NIO ANHUI HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing measurement methods for high-voltage wire harnesses are limited to static measurement of insulation resistance, and cannot evaluate the dynamic change of insulation resistance of high-voltage wire harnesses during collision and impact, and cannot judge the risk of insulation failure after impact force and impact displacement of high-voltage wire harnesses

Method used

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  • Dynamic measurement method of impact parameters of high-voltage wire harness collision

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Embodiment Construction

[0034] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention. For example, although the various steps of the measurement method of the present invention are described in a specific order in this application, these orders are not limiting, and those skilled in the art can follow a different order without departing from the basic principle of the present invention. to perform the steps. More specifically, in this application, the step of processing the data collected by the measuring equipment specifically includes: converting the data of impact force changing with time into data of impact force changing with impact displacement, converting the data of insulation resistance changing with time It is the data...

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Abstract

The invention relates to safety testing of high-voltage wire harnesses, and specifically provides a dynamic measurement method for collision impact parameters of high-voltage wire harnesses. The invention aims to measure the characteristics of the dynamic change of the insulation resistance of the high-voltage wire harness with the impact force and impact displacement during the impact. For this purpose, the method provided by the invention includes: selecting a high-voltage wire harness and an impact module; fixing the selected high-voltage wire harness on a test bench and connecting it to a measuring device; Adjacent placement; set the test termination condition, and terminate the test when the test termination condition is reached; make the impact module exert force on the high-voltage wire harness; collect the impact module’s impact on the high-voltage wire harness through the measuring device Data in the process of applying force; process and save the data collected by the measuring device. The invention realizes the evaluation of the dynamic change of the insulation resistance of the high-voltage wire harness during the impact process.

Description

technical field [0001] The invention relates to safety testing of high-voltage wire harnesses, in particular to a dynamic measurement method for collision impact parameters of high-voltage wire harnesses. Background technique [0002] In recent years, with the increasing number of new energy vehicles, their safety issues, especially passive safety issues, have also received increasing attention from the government, consumers and auto manufacturers. On October 1, 2015, my country officially began to implement GB / T31498 "Safety Requirements for Electric Vehicles After Collision", which made detailed requirements for the voltage, insulation resistance, electric energy and insulation protection of high-voltage circuits after collision. The high-voltage wiring harness is an important connecting part in the high-voltage circuit. If a short circuit or insulation failure occurs during a collision, it will directly affect the post-collision safety functions of the high-voltage circui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/08G01R27/02G01M17/007
CPCG01M7/08G01M17/0078G01R27/025
Inventor 赵欣超
Owner NIO ANHUI HLDG CO LTD
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