High voltage load dump test system and test method for electric vehicle

An electric vehicle and test system technology, applied in the automotive field, can solve the problems of high-voltage load dump without test methods, test equipment, power battery disconnection, etc., and achieve the effect of improving detection safety

Inactive Publication Date: 2019-01-18
CH AUTO TECH CORP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In new energy vehicles, during the process of charging the power battery, the power battery may be accidentally disconnected, causing the equipment connected to the high-voltage circuit to suffer high-voltage load dump
[0006] At present, there is no test method and corresponding test equipment for high-voltage load dump

Method used

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  • High voltage load dump test system and test method for electric vehicle
  • High voltage load dump test system and test method for electric vehicle
  • High voltage load dump test system and test method for electric vehicle

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Embodiment Construction

[0041] In order to have a clearer understanding of the technical features, purposes and effects of the invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings, in which the same reference numerals represent the same parts.

[0042] For the sake of brevity and intuition in description, the solution of the present invention is described below by describing several representative implementation manners. Numerous details in the embodiments are only used to help the understanding of the solutions of the present invention. But obviously, the technical solutions of the present invention may not be limited to these details when implemented. In order to avoid unnecessarily obscuring the solution of the present invention, some embodiments are not described in detail, but only a framework is given. Hereinafter, "including" means "including but not limited to", and "according to..." means "at least accordin...

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Abstract

The embodiment of the present invention discloses a high voltage load dump test system and a test method for an electric vehicle. The high voltage load dump test system comprises a relay, a power battery charging device, a high voltage load, a switch and an oscilloscope. The relay comprises a contact and a coil, wherein the contact is connected with a power battery in series; the power battery charging device is connected with the power battery for charging the power battery; the high voltage load is connected with the power battery charging device in parallel; the switch is connected with a coil in series, wherein when the switch is in a closed state, the contact is closed to conduct a charging loop of the power battery charging device for charging the power battery; when the switch is inan off state, the contact is disconnected to disconnect the charging loop; the oscilloscope is connected with the high voltage load in parallel for detecting load dump pulse when the charging loop isdisconnected in the process of charging the power battery by the power battery charging device. The embodiment of the invention can detect high voltage load dump pulse and can improve the detection safety.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of automobiles, in particular to a high-voltage load dump testing system and testing method for electric vehicles. Background technique [0002] The latest national standard "Terms and Definitions of Vehicle and Trailer Types" (GB / T 3730.1-2001) has the following definition for a vehicle: a non-rail-mounted vehicle driven by power with 4 or more wheels, mainly used for : Carrying people and (or) goods; towing vehicles carrying people and (or) goods; special purpose. Energy shortages, oil crises and environmental pollution are intensifying, which have a huge impact on people's lives and are directly related to the sustainable development of the country's economy and society. All countries in the world are actively developing new energy technologies. [0003] Energy shortages, oil crises and environmental pollution are intensifying, which have a huge impact on people's lives and are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/006
Inventor 陆群王远腾
Owner CH AUTO TECH CORP CO LTD
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