High low temperature test chamber for vehicle testing

Whats/App: +86 156 1874 6768

Web: standard-groups.com

Applications

1. Automotive R&D Testing

Cold Start Test: Verifies engine starting performance at low temperatures (e.g., -40°C), requiring ≤3 successful starts with a start time ≤15 seconds.

Thermal Equilibrium Test: Simulates high-temperature (+60°C) and high-humidity environments to evaluate the stability of air conditioning systems and cooling components.

Material Reliability: Assesses the aging resistance of body coatings and rubber seals under temperature-humidity cycling conditions.

2. Other Applications

Extendable for environmental reliability testing in aerospace, large home appliances, and other industries, supporting composite environment simulation including low atmospheric pressure (1 kPa to atmospheric pressure).

Standards

GB/T 2423.1 Environmental Testing of Electrical and Electronic Products - Part 2: Test Methods - Test A: Low Temperature

GB/T 2423.2 Environmental Testing of Electrical and Electronic Products - Part 2: Test Methods - Test B: High Temperature

GB/T 2423.3 Environmental Testing - Part 2: Test Methods - Test Cab: Constant Humidity and Heat Test

GJB 150.3A Laboratory Environmental Test Methods for Military Equipment - Part 3: High Temperature Test

GJB 150.4A Laboratory Environmental Test Methods for Military Equipment - Part 4: Low Temperature Test

Features

1.Large-Scale Vehicle Testing:

Supports full-size vehicles and engine operation under extreme temperature and humidity conditions.

2.Precise Environmental Control:

Temperature fluctuation ≤±0.5℃, temperature uniformity ≤2℃, and humidity deviation ±5% RH ensures reliable and repeatable results.

3.Cold Start and Heat Balance Simulation:

Allows testing of automotive engines, air conditioning systems, and auxiliary components under simulated real-world conditions.

4.Durability and Reliability Assessment:

Facilitates accelerated aging of coatings, rubber seals, and electrical components under extreme environmental cycles.

5.Flexible Application:

Can be adapted to composite environmental simulations including low-pressure conditions for aerospace or industrial applications.

Parameters

Item	Specifications
Refrigeration System	Capable of maintaining stable internal temperature at -16°C while one 5-ton vehicle (or two 2.5-ton vehicles, total engine displacement 4.0T, maximum power 300kW) is running at 50% rated engine speed.Internal effective dimensions: 10 m × 5 m × 4 m (D × W × H)
Temperature Range	-45°C ~ 90°C
Temperature Fluctuation	≤±0.5°C
Temperature Uniformity	≤2°C
Humidity Range	20% ~ 98% RH
Humidity Deviation	±5%

Test Procedures

1. 1.Equipment Preparation

Verify chamber structure, power supply, and safety interlocks.

Check water supply and humidity system operation.

Position vehicle(s) securely using support platforms or fixtures.

2. 2.Parameter Configuration

Set desired temperature and humidity ranges.

Program cyclic test schedules for hot, cold, and humid conditions.

Activate data acquisition and monitoring systems.

3.3. Test Execution

Start environmental simulation.

Monitor temperature, humidity, and engine behavior if performing cold start tests.

Record all data automatically via software.

4.4. Test Completion

Gradually return chamber to ambient conditions.

Remove vehicles safely and analyze test data for component reliability and performance.

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