| Project Background

An automobile is a complex industrial product composed of numerous components and assemblies, each with different operating temperatures and material tolerance limits. Only by ensuring that they function within suitable temperature ranges can the vehicle operate safely, efficiently, and reliably. Common thermal management failure modes in automotive components include engine overheating, transmission overheating, battery thermal runaway, poor low-temperature performance of traction batteries, and high energy consumption during air-conditioning heating.

| Project Overview

Automotive thermal management testing simulates extreme environmental conditions (such as high temperature, low temperature, and high humidity) to evaluate the performance of key components including the vehicle cooling system, air conditioning system, and battery thermal management system under complex operating conditions, ensuring reliable vehicle operation across diverse climates while enhancing energy efficiency.

| Test Objective

The primary objective is to verify the heat dissipation capacity, thermal balance performance, and durability of the thermal management system under extreme conditions of high temperature, low temperature, and high humidity, while optimizing the design to reduce energy consumption and comply with environmental regulations.

Test Content

‌

1. Air Conditioning System Test‌

By conducting road tests, evaluate the cooling efficiency of components such as the refrigeration system, evaporator, and condenser, while verifying winter heating performance and air purification effectiveness. ‌

‌

2. Engine Cooling System Test‌

Assess the heat dissipation performance of components such as the radiator and coolant circuit under different load conditions, ensuring stable engine operation even under extreme working conditions. ‌

‌

3. Electric Vehicle Battery Thermal Management Test‌

Monitor the temperature distribution within the battery pack to prevent overheating or localized overcooling that could cause performance degradation, thereby safeguarding driving range. ‌

‌

4. Bench Test

In an environmental simulation laboratory, adjust parameters such as temperature and humidity to replicate extreme climatic conditions and evaluate the overall vehicle thermal management performance.

| Testing Standards

Relevant Standards for Automotive Air Conditioning Products:

GB/T 21361-2008 Motor vehicle air-conditioning unit.

QC/T 656-2000 Performance requirements for automotive air conditioning refrigeration devices.

QC/T 708-2004 Technical requirements for automotive air conditioning blowers.

QC/T 657-2004 Test methods for automotive air conditioning refrigeration devices.

Relevant Test Standards for Liquid Cold Plates:

QC/T 468-2010 Technical specifications for automotive radiators.

QC/T 907-2013 Test methods for heat dissipation performance of automotive radiators.

JB/T 9058 Measuring method of refrigerating equipment cleanliness.

| Service Products / Fields

Automotive components (such as automotive air conditioning systems, automotive powertrain systems, electric vehicle battery systems, automotive electronic control systems).

Automotive electronic components (such as multimedia control systems, intelligent driving control systems, and automotive central control systems).

| Project Advantages

1. Accurately simulate the temperature variation environment of automotive components during actual use, ensuring test results with high reference value.

2. Detect potential faults and defects in automotive components under thermal management test conditions at an early stage, enabling timely corrective measures to reduce product failure rates.

3. Precisely monitor and record various performance parameters of automotive components during the testing process, providing detailed data to support product quality evaluation and performance analysis.

4. Conduct tests in compliance with relevant international and industry standards to ensure the standardization and impartiality of the testing process, thereby achieving results with high recognition across the industry.