An electric vehicle water-cooling plate performance test bench and data processing method

By designing a performance test bench for electric vehicle water-cooled plates and combining it with a heat pump air conditioning system and a data acquisition system, the problem of long performance testing cycles for water-cooled plates was solved, and efficient and accurate performance testing and research on battery thermal management system control methods were achieved.

CN115791207BActive Publication Date: 2026-03-27SOUTH CHINA UNIV OF TECH
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Patent Information

Application Number
CN202211666090.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-23
Publication Date
2026-03-27
Estimated Expiration
2042-12-23

AI Technical Summary

Technical Problem

In existing technologies, the performance testing of water-cooled plates requires the installation of batteries for whole-pack testing, resulting in excessively long testing cycles. Furthermore, air cooling methods cannot meet the heat dissipation requirements of high-energy-density lithium batteries.

Method used

A performance test bench for water-cooled plates in electric vehicles was designed, including a coolant circuit and a refrigerant circuit. It is combined with a heat pump air conditioning system, a low-temperature radiator cooling system, and a data acquisition and control system. Heating and cooling switching is achieved through a four-way valve and a plate heat exchanger. Pressure drop and flow resistance are measured by sensors, and the flow rate is controlled by a water pump. Data acquisition and control are performed using LabVIEW software.

Benefits of technology

This technology enables rapid and accurate testing of water-cooled plate performance at low cost, shortens the testing cycle, simulates real electric vehicle operating conditions, improves testing efficiency and accuracy, and supports research on battery thermal management system control methods.

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Abstract

The application discloses a kind of electric vehicle water-cooled plate performance test platform and data processing method, the test platform includes two circuits of cooling liquid circuit and refrigerant circuit, including heat pump air conditioning system, low-temperature radiator cooling system, data acquisition and control system and water-cooled plate test bench, heat pump air conditioning system includes compressor, condensing / evaporating radiator, four-way valve, electronic expansion valve and plate heat exchanger, and heating and refrigeration are realized by four-way valve Switching;Low-temperature radiator cooling system includes water-cooled radiator, three-way valve and liquid storage tank, water-cooled radiator, three-way valve and liquid storage tank are connected to form cooling liquid circuit and refrigerant circuit is exchanged with cooling liquid circuit by plate heat exchanger, and the performance experiment of low-temperature radiator to water-cooled plate test platform can be realized.This application can simulate the actual operating performance of water-cooled plate on real electric vehicle, can test the heat dissipation and heating capacity of water-cooled plate, and can determine the pressure drop or flow resistance under different flow and different temperature.
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