Text丨Dong Shutong?C
Auto shows, auto shows, use cars to participate in exhibitions, and GAC New Energy just turned the auto show into a "technology expo".
On September 26, the 2020 (16th) Beijing International Automobile Exhibition officially opened. GAC New Energy’s Ion S and A-class smart SUVs topped the sales of Ion V and the world’s first support for high-end Jingtu's self-driving smart car Aian LX was collectively unveiled at the booth. Position C of the booth displayed China's first pure electric exclusive platform GEP2.0 built by GAC New Energy at a cost of 3 billion.
Although cars are the highlight, GAC New Energy’s purpose at this auto show is not to showcase cars, but technology. In addition to the graphene super fast charging technology that represents future electrification technology, the hydrogen fuel cell vehicle Aion LX Fuel Cell, which will start demonstration operation this year, as well as the forest green air purification system, nano bionic anti-fouling materials, and on-board traditional Chinese medicine fragrance In addition to other innovative technologies, it also released the world's first two-speed dual-motor "four-in-one" integrated electric drive for the first time. This is the biggest hit!
Do you still remember the Aian LX that was launched last year? That's right, it's that performance beast pure electric SUV that can accelerate from 100 kilometers to 100 kilometers in 3.9 seconds.
Aion LX is equipped with the world's first high-power "electric drive, electronic control, differential reduction" three-in-one integrated electric drive system launched by GAC New Energy in 2018. At that time, it had the world's highest motor The mass-power density is 5.1kW/kg (still very top-notch at this time), making the Aian LX the "fastest Chinese car".
The first two-speed dual-motor "four-in-one" integrated electric drive is an upgrade based on the "three-in-one" electric drive. Through dual motors + controller + two-speed The deep integration of the reducer not only realizes the structural integration of electric drive-related modules, but also realizes the integration of multiple drive modes, becoming the best solution that takes into account both high performance and high efficiency. It leads the industry for a whole generation and enables China's automotive powertrain technology to be realized. A leading breakthrough.
If you have to use speed to quantify the two-speed dual-motor "four-in-one" integrated electric drive, it would be within 2 seconds!
The Aian series models equipped with this new technology can shorten the acceleration time from 100 kilometers to two seconds, setting a new acceleration record for "China's fastest car".
"World's first" is really not an easy thing to do with one click, and it is even more difficult to shorten the acceleration time from 100 kilometers to two seconds. According to the official introduction, during the research and development process, the problem was only the interruption of shift power. The shift control team discussed 5 technical solutions and designed more than 10 related tests. Finally, it went through 100,000 shift fork durability tests, 100,000 synchronizer durability tests, etc. , and finally successfully completed the development of high-speed and high-speed differential synchronizers, which took half a year to successfully overcome.
This two-speed dual-motor "four-in-one" integrated electric drive system has overcome multiple technical problems during the research and development process and achieved a number of technological innovations. It has applied for more than 70 patented technologies alone. , including 29 invention patents, accounting for approximately 41%.
Fortunately, the final result is beautiful: 340kW of violent power; comprehensive drive efficiency as high as 90%, lower energy consumption; compared with two single-motor three-in-one electric drive assembly, the power It is increased by 13%, the volume is reduced by 30%, and the weight is reduced by 25%; it supports multiple drive modes of single-speed single motor, single-speed dual motor, and two-speed dual motor, which can achieve high-performance power output capability in the full speed range; the key is that it can be used through OTA Optimize shifting quality, optimize vehicle power and economy.
With technology, there is a future, and with technology, there is sales. Judging from the new products launched by GAC New Energy in recent years, it has always been committed to promoting system integration in the research and development and application of pure electric power systems and achieving miniaturized and lightweight product iterations. Advanced technical reserves create strong products.
From January to August this year, GAC New Energy’s cumulative sales exceeded 31,000 vehicles, a year-on-year increase of 75%, firmly ranking among the top three in the industry, and becoming the fastest new vehicle in the world to achieve cumulative production and sales of 100,000 vehicles. Energy vehicle companies, both Aion S and Aion V have achieved the top sales in their respective market segments. You must know that this is an achievement achieved under the dual pressure of the epidemic and the decline of the auto market. It cannot be achieved by relying solely on marketing.
In the era of traditional fuel vehicles, Chinese brands have been struggling to catch up. In the field of pure electric technology, Chinese car companies are on the same starting line as international car companies, and have achieved global leadership in some technologies.
Judging from the two-speed dual-motor "four-in-one" integrated electric drive launched by GAC New Energy at the Beijing Auto Show, it is enough to put pressure on many international car companies.
"Enjoy technology one step ahead of others", give GAC New Energy a thumbs up.
This article comes from the author of Autohome Chejiahao and does not represent the views and positions of Autohome.