ATEC

Solution

12

2021

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08

High and low temperature hub test chamber of ATEC vehicle

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The hub test chamber is a very important test equipment in the process of automobile product development. Through the hub test, not only the power of the car can be tested, but also the power, economy, comfort and operational stability of multiple working conditions can be measured. Through this technical means to accelerate the development of the automobile industry, narrow the product development cycle, save product development costs, improve the indicators of the car has an important role.
This hub test chamber is different from the traditional fuel vehicle hub test chamber. The equipment is specially customized for new energy electric vehicles. It detects various technical indexes of the new energy vehicle battery pack for power test under the real extreme ambient temperature of the whole vehicle.
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This environmental chamber can be applied to electric vehicles with total mass ≤ 3500kg and power ≤ 150kW. According to the following test items, the environmental simulation conditions of -40 ℃ ~ +60 ℃ can be provided during the test. For product development, experimental research and regulatory testing.
Main system composition:
It is composed of cabin, refrigeration system, heating, humidification, fresh air system, air handling system, control system and safety protection system. And reserve fresh air and exhaust emission interface to facilitate the expansion of environmental compartment functions in the future.
The circulating air system consists of surface cooler, electric heater and fan, etc., and is installed in the cabin ceiling interlayer.
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Working principle overview
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High and low temperature environmental chamber library board, including side plate, bottom plate and top plate, chassis dynamometer insulation board
The cabin body is assembled at the user's site with the library board, the bottom plate is sunk, and the inner bottom plate of the cabin is flush with the outer ground, which is convenient for vehicles to enter and exit. (Floor pit and chassis dynamometer pit shall be reserved as required during infrastructure construction)
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Main technical specifications of hub environmental chamber
1. Main technical indicators
Internal dimension of 1.1 environmental chamber: 13000mm(L)× 6000mm mm (W)× 3500mm(H)
Internal dimensions of 1.2 transition room: 2000mm(L)× 1500mm(W)× 2500mm(H)
1.3 temperature control range:-40 ℃ ~ +60 ℃;
1.4 humidity control range: 20% RH ~ 95% RH (no need to control humidity below 15 ℃);
1.5 temperature control accuracy/fluctuation (static):≤ ± 1.0 ℃ (simulate the air outlet of the fan at the wind speed, and there is no static heat load);
1.6 temperature control accuracy/fluctuation (dynamic):≤ ± 1.5 ℃ (when the wind speed simulates the air outlet of the fan and the wind speed simulates the operation of the fan, the drum and the vehicle during the dynamic test);
1.7 temperature uniformity: ≤ ± 1.5 ℃ (spatial unevenness, no static heat load);
1.8 humidity control accuracy: ≤ ± 5% RH;
1.9 temperature rise and fall rate: 0.5 ℃/min (load of a 2000kg vehicle with rotating hub, tracking fan and static load, average rate within the range of -30 ℃ ~ +60 ℃);
1.10 cooling mode: water cooling
1.11 installation power: about 260kw
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High and low temperature hub test chamber of ATEC vehicle

The hub test chamber is a very important test equipment in the process of automobile product development. Through the hub test, not only the power of the car can be tested, but also the power, economy, comfort and operational stability of multiple working conditions can be measured. Through this technical means to accelerate the development of the automobile industry, narrow the product development cycle, save product development costs, improve the indicators of the car has an important role. This hub test chamber is different from the traditional fuel vehicle hub test chamber. The equipment is specially customized for new energy electric vehicles. It simulates the whole vehicle under real extreme ambient temperature to detect various items of the new energy vehicle battery pack during power test.