Full Vehicle Environmental Performance Test Chamber
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Full Vehicle Environmental Performance Test Chamber is a specialized facility designed for comprehensive testing of gasoline and electric vehicles under controlled environmental conditions. It evaluates vehicle HVAC systems, defrost/defogging performance, thermal management, and overall environmental behavior. The chamber is compatible with chassis dynamometers (roller type) for integrated vehicle testing, providing accurate data for research, development, and performance analysis.
Application
The Full Vehicle Environmental Performance Test Chamber is applicable across a range of vehicle performance evaluation scenarios, including:
Vehicle HVAC and Thermal Management Testing
Evaluation of air conditioning, heating, defrosting, and demisting efficiency
Thermal comfort assessment for driver and passenger compartments
Emission and Air Quality Testing
Measurement of in-cabin pollutants and VOC concentrations
Analysis of temperature-dependent emission characteristics
Road Simulation and Performance Analysis
Coupled with roller-type chassis dynamometers to simulate driving conditions
Testing fuel consumption, energy efficiency, and climate control performance
Standards
The chamber conforms to multiple national and international standards, including:
(1) GB 18352.6-2016 – Limits and measurement methods for light vehicle pollutants
(2) GB/T 27630-2011 – Guidelines for passenger car interior air quality assessment
(3) QC/T 658-2009 – Road test methods for automotive air conditioning system performance
(4) GB/T 12535-2021 – Vehicle starting performance test methods
(5) GB/T 12542-2020 – Road test methods for vehicle thermal balance capabilities
(6) GB/T 2423 – Environmental testing methods for high/low temperature, humidity, and thermal cycling
(7) ISO 12219-1 – Road vehicles – Interior air – Test methods for volatile organic compounds in complete vehicles
(8) DIN 75220 – Sunlight simulation aging tests for automotive components
(9) SAE J1711 – Recommended procedures for hybrid vehicle fuel economy and emission measurements
(10) PV 3938 – Evaluation methods for automotive interior odor
Parameters
| Item | Specification |
|---|---|
| Internal dimensions (L×W×H) | 16.300 × 8.300 × 5.200 mm |
| Heat exchanger clearance height | ≥3.500 mm |
| Floor insulation | 150 mm polyurethane |
| Chamber floor | Stainless steel tread plate, solid layer thickness ≥3 mm, pattern height 2 mm |
| Floor load capacity | 1.200 kg/wheel; axle load ≥2.000 kg |
| Chassis dynamometer support | Thermally insulated, designed for full dynamometer weight |
| Vehicle access door | 1 set, net 3.000×3.000 mm, two-leaf, heated glass observation windows 300×300 mm |
| Personnel access door | 1 set, net 900×1.900 mm, heated explosion-proof glass observation window 300×300 mm |
| Control observation window | 2 sets (optional), 2.000×1.000 mm, insulated, anti-frost heated surface |
| Lighting | Main illumination ≥500 lux over full temperature range; emergency light operational ≥1 hour at -40°C |
| Power outlets | 4×220 VAC/10A, 2×220 VAC/16A, 2×380 VAC/32A (with standard triangle plugs) |
| Cable feed-throughs | 4 sets, diameter 100 mm, max 16 cables per hole |
| Personnel airlock | 1 set, 1.500×1.500×2.100 mm, internal opening, external lockable |
| Chamber pressure | Micro-positive pressure 0–50 Pa via pressure balance valves |
Features
Large-scale chamber capable of accommodating full-size vehicles
Supports integration with roller-type chassis dynamometers
Comprehensive environmental control: temperature, humidity, solar irradiation, and airflow
Heated, insulated, and observation-capable doors for vehicle and personnel access
Safety features: emergency lighting, pressure balance, CO/NOx monitoring, automatic alarm and shutdown
High load capacity floor suitable for vehicle weight and axle distribution
Multiple power supply options for testing electrical and HVAC systems
Precise instrumentation and calibration for temperature, humidity, and solar radiation simulation
Accessories
(1) Observation windows with heated glass
(2) Personnel access door with anti-explosion heated glass
(3) Control system for environmental parameters
(4) Emergency lighting and power outlets
(5) Roller-type chassis dynamometer interface and support blocks
Test Procedures
Pre-Test Preparation
Clean chamber walls with neutral detergent (pH≥7.5) and rinse with deionized or distilled water
Ventilate chamber at least six air changes to reduce background pollutants: formaldehyde ≤6 µg/m³, TVOC ≤50 µg/m³, single pollutants ≤5 µg/m³
Verify calibration of temperature/humidity sensors, solar simulation system (e.g., 1.200 W/m² ±20 W/m²), and roller dynamometer if installed
Sample and Parameter Setup
Position vehicle centrally within chamber, ensuring level orientation and uniform airflow over vehicle surfaces
Connect vehicle power supply and sensors (temperature, fuel consumption, emission monitoring)
Test Process Control
Activate automated control system to monitor and maintain temperature, humidity, solar intensity, and airflow (e.g., roller fan speed up to 260 km/h)
For thermal cycling tests, program temperature rise, hold, and drop phases while recording vehicle performance metrics (cold start, AC cooling rate, etc.)
Safety and Emergency Measures
Continuously monitor chamber pressure and emission concentrations
System triggers alarms and shuts down power if temperature deviates by >±2°C or emissions exceed limits
Entering the chamber requires stopping the test and ventilating for at least 30 minutes
Maintenance Information
Regular cleaning of chamber walls, doors, and observation windows to prevent contamination
Periodic calibration of temperature, humidity, and solar simulation systems
Inspection of power outlets, lighting, and emergency systems
Verification of airlock operation and pressure balance valves
Scheduled maintenance of roller dynamometer interface and support structures
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