crashtwinsanitymobile| Why is the vehicle-level projection lifting curtain so "every inch of land is precious"?
editor 2024-05-10 10:23:21 Finance 25
Since the launch of Panorama Intelligence flagship SUV question M9 on December 26th, 2023,CrashtwinsanitymobileIn just three months, it created a fixed number of more than 70000.CrashtwinsanitymobileThe record, as a 500000-class luxury model, has been far ahead. At the same time, Hongmeng Zhihang's April sales data showed that M9 sales reached 13391, beating a number of luxury brands and topping the monthly sales ranking of more than 500000 market segments in China, regardless of energy form, vehicle structure and more. The industry's first gauge-level projection screen carried by the M9 has also made waves in the projection industry. This innovation not only sets a new milestone for the in-car entertainment system, but also marks the perfect integration of automotive technology and high-end cinema experience.
This piece by Science and Technology Innovation Board's first batch of listed companies Guangfeng Technology (688007CrashtwinsanitymobileThe large lifting screen created by .sh) has overcome many technical problems that can be imagined by ordinary consumer grade projection, and only a rising and falling screen can be said to be expensive. In this article, we interviewed the R & D representative A worker of the project curtain, and from his perspective, we took a look at how the R & D staff "bravely went through the customs" and polished this first car gauge-level projection lifting curtain in the industry.
How difficult is the "car regulation level"?
The price of automotive electronic products is generally expensive, of which the most important reason is that automotive components need to meet higher standards in order to "get on the car", that is, the car specification level.
Common components are generally classified according to use temperature, radiation, anti-interference and so on, from low to high: consumer grade, industrial grade, automotive grade, military grade, aerospace grade. The working temperature range of consumer-grade components is 0 ℃ ~ 70 ℃, which is the most common type on the market. Computers, mobile phones, household appliances and other commonly used in daily life are basically consumer-grade components, and the price is the cheapest; the working temperature requirements of automobile-class passenger cabin components are-40 ℃ ~ 85 ℃, in extremely cold or ultra-high temperature working environment, all need to maintain normal use.
In terms of service life, consumer-grade and automotive-grade standards are also quite different. The basic life requirement of consumer class is 2-3 years, while the entry requirement of automobile-grade is 10-15 years.
In addition, there are a lot of car specification level, for ordinary consumer products, unimaginable test content, including:
……
More than 50 reliability, electrical performance and EMC test projects need to be cleared one by one in order to obtain access permits for car companies.
The biggest R & D problem: from scratch
"projection giant screen 'get in the car', because the standards are completely different, so the experience of consumer products can not be reused, can not be simply installed." Worker A said. In order to solve this problem, the curtain research and development team moved quickly to conduct an in-depth study of more than a dozen curtain materials on the market, but unfortunately, they could not find any material that could fully meet the strict standards of the car regulations.
In the face of this dilemma, the curtain team did not flinch, but chose a path of innovation, determined to start from scratch and develop a brand-new curtain. They quickly devoted themselves to the intense research and development work, and finally successfully applied an innovative special elastic material to the curtain after hundreds of design, testing and optimization, and screening of hundreds of materials. This special elastic material has excellent hydrolysis resistance and salt fog resistance, can maintain stability in extreme temperature and humidity conditions, and is not easy to peel or re-stick even under the erosion of salt fog. At the same time, it also has excellent anti-aging ability, after a long time of ultraviolet radiation and weathering testing, it can still maintain bright colors and complete structure, and almost impeccably meet the high standards of vehicle regulations.
In the face of the recent achievements in the research and development of curtain materials, the team has no time to indulge in joy, because new challenges are imminent-the design of motors and earthquake-resistant structures needs to be solved.
These challenges are similar to the research and development of curtain materials, that is, in the mature consumer projection screen market, there have never been such stringent requirements. Specifically, the motor must be designed to be extremely compact so that it can adapt to the limited space on the roof and require a long service life, while the curtain needs to show a strong earthquake resistance while the vehicle is driving. to ensure that passengers can enjoy a stable and comfortable visual experience while watching. These requirements not only test the innovation ability of the team, but also promote them to move forward on the road of technological innovation.
In the end, the answer from the R & D team was: an ultra-small motor that meets the requirements of the car specification, which passed 20000 lifting endurance tests; a completely self-developed and innovative X-screen connection structure, as well as a unique motor locking method, so that the shock resistance of the projector has reached the extreme.
Through the X-shaped screen structure, even if the vehicle is driving at a speed of 80 kilometers per hour and all the windows in the car are open, the projection picture remains stable without jitter, significantly improving the viewing experience. This makes the overall car gauge-level lifting screen scheme through the German Rheinland TUV eye comfort and Switzerland SGS anti-halo certification, to ensure that watching for a long time does not hurt the eyes, do not get carsick.
The whole scheme passed the cycle impact test of-40 ℃ and 85 ℃, salt spray environment test for nearly 100 hours, bare metal drop test at 1m height, impact test for peak acceleration of 50G, life test of the whole machine working for more than 1000 hours at 85 ℃, air lamp test for 25 days to simulate solar radiation test in full solar band, and low pressure test for equivalent 4850m altitude environment.
R & D representative A worker shared: "this curtain project, we have put in more than a year of painstaking efforts." The requirements of the car regulations are far higher than expected. We almost started from scratch, carefully crafted the plan step by step, and every step of the way was accompanied by hundreds of rigorous tests. In the end, our efforts were recognized by customers and the project was successfully accepted. We are extremely proud to be able to debut with the Q & J M9 to bring a new in-car entertainment experience for drivers. "
A 32-inch vehicle-gauge projection giant screen can operate normally in a working environment as low as-40 ° C and extremely high as 85 ° C. It has gone through 20000 lifts and downs and passed more than 50 vehicle regulations. Strict verification, research and development innovation since 0, and the ultimate demand for the driver and driver experience are the secret of the giant screen's "every inch of land is precious".