Portable multi-function tester for high-voltage battery pack

A high-voltage battery and tester technology, applied in the direction of instruments, measuring electricity, measuring devices, etc., can solve problems such as difficulty in moving test equipment to the site to solve problems, difficulty in reuse, long design and production cycles, etc. User-friendly interface, improved test efficiency, and simple solution

Inactive Publication Date: 2018-10-16
SAIC VOLKSWAGEN AUTOMOTIVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing battery pack test line has the following disadvantages: 1. The design and production cycle is long and the price is high; 2. It is difficult to reuse; 3. It is difficult to move the test equipment to the site to solve the problem

Method used

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  • Portable multi-function tester for high-voltage battery pack
  • Portable multi-function tester for high-voltage battery pack
  • Portable multi-function tester for high-voltage battery pack

Examples

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Note that the aspects described below in conjunction with the drawings and specific embodiments are only exemplary, and should not be construed as limiting the protection scope of the present invention.

[0026] The list of main test items that need to be completed by the high voltage battery pack portable multi-function tester is shown below.

[0027] IL1a: CMC addressing test

EOL1: Cooling system air tightness test

IL1b: module temperature test

EOL2: Air tightness test of battery pack box

IL1c: Single unit voltage test

EOL3: Equipotential testing

IL2: Controller software and hardware version test

EOL4: Dielectric Strength Test

IL3: Dielectric strength test

EOL5: Insulation resistance test

IL4a: High Voltage Mode Switching Test

EOL6: High Voltage Plug Interlock Test

IL4b...

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Abstract

The invention discloses a portable multi-function tester for high-voltage battery pack, which can conveniently test the battery pack in the field, has good expansion performance, improves the test efficiency of the high-voltage battery pack, and ensures the high-voltage safety of the battery pack. The technical solution is as follows: the portable multi-function tester comprises a hardware component and a software module; an upper computer is communicated with a battery pack control unit BMC through an operation panel, and the hardware module performs CAN communication with the battery pack control unit BMC through a CAN driver card and a test main harness, thereby implementing the upper and lower power control of the battery pack and the transmission and reading of relevant test parameters; and combined with the switching control of a low-voltage junction box and auxiliary test equipment, the input of the hard-wire test signal is achieved, and the off-line test of the battery pack isfinally completed. The software module improves the integration of the software algorithms, integrates different protocols into the same software carrier, improves the testing efficiency of the high-voltage battery, and can complete all electrical tests without switching the software carrier.

Description

technical field [0001] The invention relates to an off-line testing device for a high-voltage battery pack of an electric passenger car, in particular to a portable multifunctional tester for a high-voltage battery pack. Background technique [0002] Due to the increasing shortage of resources and the continuous improvement of environmental awareness, the trend of electric passenger vehicles gradually replacing traditional gasoline vehicles has become irresistible. As one of the three core technologies of electric vehicles, the battery pack technology has a great impact on the safety, stability and economy of the vehicle, and one of the important technologies to ensure the high voltage safety of the battery pack is the off-line test technology. [0003] As an important high-voltage component of electric passenger vehicles, battery packs must be operated in strict accordance with high-voltage safety regulations during the entire production and assembly process, but a complete...

Claims

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Application Information

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IPC IPC(8): G01R31/36
Inventor 郭志强杨健张凡秦颖颀
Owner SAIC VOLKSWAGEN AUTOMOTIVE CO LTD
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