l New Energy Vehicle Whole Car Testing Laboratory

The whole vehicle testing laboratory, also known as the environmental chamber, is an important part of the reliability verification of new energy vehicles, mainly used to simulate the actual performance of vehicles under extreme temperature conditions. For example, how much the seasonal battery life shrinks, whether the battery overheats at high temperatures, and whether overcharging is stable can all be simulated and verified in advance here.

According to the different adapted vehicle models, the laboratory is divided into a dual laboratory layout for light and heavy vehicles. The light vehicle laboratory is mainly designed for passenger cars and can achieve full temperature range testing from -42 ℃ to 60 ℃. It can also accurately simulate various environmental factors such as humidity, lighting, and wind speed.

Although there is also a full temperature range vehicle testing laboratory in the era of fuel vehicles, in comparison, various chemical batteries widely used in new energy vehicles are more sensitive to temperature, and the corresponding test of the vehicle's thermal management system is greater. That is to say, the verification of the stability of new energy vehicles in the full temperature range requires higher requirements than traditional fuel vehicles.

l Whole Car Light Environment Test Laboratory

The light environment laboratory is mainly aimed at verifying assisted driving and intelligent cockpit vision systems. The laboratory is equipped with a lighting simulation system, with an illumination of up to 100000 lux and a control accuracy of ± 100 lux/㎡, which can truly reproduce various road lighting scenes.

By accurately simulating the lighting environment of daily driving indoors, the laboratory can verify the imaging quality, display performance, and visual perception ability of the vehicle's cameras, providing reliable data support for algorithm optimization.

In addition, the display quality of intelligent cockpit products such as HUD display effect, panoramic view, night vision system, etc. in the car can also be tested comprehensively here. In other words, all functions related to vehicle vision can be simulated and validated in the light environment laboratory.

l Chip Testing Laboratory

For new energy cars, a car often carries thousands of chips with different shapes and functions, but they all have one thing in common, which is the extremely high requirement for reliability. Once the core chip fails, it will not only affect the functional experience, but may even threaten driving safety, so the verification of chip reliability is crucial.

The chip laboratory of China Automotive Research Institute is equipped with over a hundred top-notch instruments and equipment from both domestic and international sources, and has authoritative CNAS/CMA qualifications, covering the entire testing chain from reliability verification, failure analysis, electrical testing, safety evaluation to system level integration verification.

In order to ensure the stable operation of the chip in extreme environments, the laboratory conducts various strength tests such as high and low temperature cycling, cold and hot shock in the test chamber, and usually lasts for several months to verify its long-term comprehensive stability. In addition to identifying potential issues, the laboratory can also trace micro defects in chips and verify them in conjunction with complex vehicle level operating conditions, achieving a complete closed-loop from micro to macro.

l Whole Car Sunshine Simulation Laboratory

This laboratory appears similar to that of the light environment laboratory, but the emphasis is different. Sunshine simulation testing is mainly used to evaluate the aging and damage effects of sunlight's heat and radiation (mainly referring to ultraviolet rays) on the vehicle's paint surface, interior, plastic parts, and other components.

The laboratory adopts a full spectrum sunlight simulation system, which can truly replicate extreme global environments such as high-altitude ultraviolet radiation, coastal exposure, and high summer temperatures, and detect in advance the problems of fading, cracking, odor, or deformation that may be caused by long-term sun exposure of vehicles. Through this testing, potential durability hazards can be identified during the development phase, improving the lifespan of components and effectively enhancing the quality of use during long-term use.

l Whole Car Salt Spray Corrosion Testing Laboratory

The reliability and durability of a vehicle largely depend on its overall corrosion resistance. The laboratory comprehensively evaluates the corrosion resistance performance of vehicles by adding daily working conditions that may cause metal corrosion.

In this warehouse, extreme environments such as coastal high salinity, northern snowmelt agents, acid rain, and freeze-thaw cycles can be simulated. Compared to traditional single salt spray testing, this system supports coupling of multiple factors such as salt spray, humidity, temperature, dryness, and condensation, which is closer to real road usage conditions.

By conducting realistic simulation tests in advance, we can accurately identify areas of weak corrosion, expose potential corrosion hazards, and reduce corrosion complaints, recall costs, and durability risks in the later stages of mass production.

l Intelligent Antenna OTA Darkroom

The core of this laboratory is to verify the stability of new energy vehicle onboard communication systems, such as onboard communication systems, Bluetooth systems, intelligent networking systems, etc. The communication stability of these systems directly affects our driving experience, such as whether near-field induction unlocking is smooth, OTA system updates are smooth, and even the stability of Bluetooth connection for listening to music. Comprehensive reliability verification can be conducted here during the research and development stage.

Through the above information, we can intuitively feel the complex and rigorous verification system behind a new energy vehicle.

The rapid development of new energy vehicles in China today is not only dependent on the host manufacturers themselves, but also on the collaborative support of a large number of supply chain enterprises and national level third-party testing institutions such as China Automotive Research Institute. In a sense, it is these verification systems hidden outside the user's perspective that together constitute the underlying capabilities for the continuous progress of China's new energy vehicles.

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