One-stop full-performance integrated testing

One piece of equipment can complete multi-dimensional testing of NVH, air volume, electrical control, and air tightness, eliminating the need for segmented testing on multiple pieces of equipment;

Quickly switch vehicle model parameters

Built-in vehicle model database, HMI can switch product test programs with one click, model change ≤10 minutes;

High-precision noise collection system

The soundproof cabin is a closed test environment to accurately capture the abnormal noise of fans and gear friction;

Vehicle communication simulation unit

Built-in CAN/LIN signal simulator, complete reproduction of vehicle air conditioning control logic;

Automatic identification and diversion of defective products

If the detection fails, the defective barcode will be automatically printed, diverted to the repair station, and the root cause of the defect will be bound to the data;

Space-saving and lightweight design

A single workstation is only 12 square meters, and can be expanded in parallel to adapt to the compact layout of the factory.

Parameter items

Technical indicators

Adapted products

Single zone/dual zone/front and rear integrated HVAC air-conditioning box assembly

Single unit test rhythm

90s/unit (all items tested)

control system

Siemens S7-1511C PLC + 15-inch industrial touch screen

Noise detection accuracy

Sound level meter accuracy ±0.5dB, soundproof cabin background noise ≤28dB (A)

Air volume and pressure range

Air volume 0\1200m³/h, air pressure 0\300Pa, accuracy ±1% FS

Communication support

CAN2.0B, LIN bus, Profinet IO

Airtight leak detection accuracy

Leak detection ≤5×10⁻⁴ mbar・L/s

Working voltage

AC380V ±10%, total equipment power 12kW

Data storage capacity

Local 500G industrial computer, storing ≥10 years of inspection records

Expand capabilities

Up to 8 test stations can be connected in parallel to unify MES data summary

NVH silence detection function

The workpiece is automatically fed into the airtight soundproof cabin, and the fan operates in all gears to collect the noise spectrum. The system automatically compares the standard noise curve to identify defects such as abnormal bearing noise, air duct resonance, and gear jamming, thereby eliminating complaints of abnormal noise from the air conditioner after the vehicle is delivered.

Air duct air volume and wind pressure performance test

Simulate the vehicle's air inlet/internal and external circulation mode, collect air volume and wind pressure data at multiple levels, determine air duct blockage, loose air door sealing, and insufficient fan power to ensure uniformity of cooling and heating air in the vehicle.

Electronic control mode switching test

Send cooling and heating, internal and external circulation, and defrost mode instructions through the CAN bus, detect the response speed and position accuracy of the damper actuator motor, and the cooling and heating valve action, and verify the logic matching of the air conditioning controller.

Assembly air tightness leak detection function

Perform pressurized dry leak detection on air conditioning boxes and heat exchanger pipelines, and detect micro-leakage in box welding and gasket assembly to avoid vehicle refrigerant leakage and cooling and heating attenuation failures.

Digital quality traceability function

Scan the code to bind the VIN code of each HVAC assembly, and all test indicators and qualification results are uploaded to the MES system simultaneously. The OEM can retrieve the complete inspection file of a single piece at any time to meet the mandatory requirements of IATF16949 for quality traceability.

Commercial value: It replaces 4-6 manual inspections, improves inspection consistency by 90%, directly eliminates manual misjudgments, and reduces complaints about abnormal noise and refrigerant leakage from after-sales air conditioners at OEMs by 70%. One-stop inspection reduces the space occupied by workshop equipment by 30%.