In the face of the increasingly volatile domestic automobile market, in order to survive in the industry, many car companies understand the simple truth of "reducing costs and increasing efficiency", and the most direct way to reduce costs is self-sufficiency; But to put it simply, not all car companies have the strength to build a complete industrial chain, but GAC Aion has done it - on January 30, GAC Aion's Ruipai intelligent ecological electric drive factory was officially completed and put into operation, and the latest product of Quark electric drive technology, M25 super electric drive, was also mass-produced, coupled with the Inpai battery intelligent ecological factory that was officially put into operation on December 12 last year, GAC Aion truly realized comprehensive self-research and self-production in the field of new energy and electric vehicles, and realized an independent and controllable industrial chain layout.
The motor of Ruipai M25 super electric drive has a very popular nickname, called "Pocket V8", how did this nickname come from? What are the industry-leading technologies of the M25 super electric drive? See below.
Why are they pursuing motor miniaturization? After seeing the real thing, you will find that the volume of Ruipai M25 super electric drive is not large, and its internal motor is almost half smaller than mainstream products, and even can be held up by one palm, but its power density is as high as 12KW KG - you must know that the industry average is only 6KW KG, M25 doubles this level - plus its speed can reach up to 22000 rpm, and the power output level is comparable to that of a traditional V8 engine. Therefore, the official also gave the M25 super electric drive motor that takes into account both small size and strong power a nickname of "handheld V8".
Speaking of which, some friends may ask: Is there a difference between a smaller and larger motor? If it's bigger, it's bigger, but does the car still care if the motor is smaller? Of course I care. For manufacturers, a smaller motor can use less material, the equipment of the motor processing line can also be smaller, the energy consumption of the production process can be smaller, and the carbon emissions can be smaller......A little smaller here and a little smaller there, it is a cost when it is counted together, and the cost is reduced in all links. Therefore, starting from the most direct cost reduction, many manufacturers are pursuing motor miniaturization.
Some people may ask: the volume of your motor has decreased, but the motor has become smaller, and the power output is not also smaller? This involves the level of technological development - through the progress of technology, the use of motor materials has new changes, the manufacturing process has been optimized, and the energy density and power density can also be significantly improved; Technological advancements are disruptive, making it possible to reduce the power output of the motor even more rapidly.
Specific examples, such as Haobo's latest SSR pure electric sports car, its body volume is so large, but it can also be stuffed with three small motors to achieve multiple motors 1Acceleration of 100 kilometers in 9 seconds, but ordinary motor plugs are definitely not plugged in, which is the subversive effect brought by scientific and technological progress.
What are the leading technologies of the M25 superdrive? Back to the Ruipai M25 super electric drive, it is produced in GAC Aion's Ruipai intelligent ecological electric drive factory. According to the official introduction, the Ruipai factory adopts the "RTS super process", including ultra-high-precision shaft tooth grinding process, high-speed wire forming and winding making process, ultra-flexible flat wire assembly process, and ultra-high-precision rotor dynamic balancing process. Looking at the name of this series of processes, the literal meaning is not easy to understand, but in fact, it can be summed up in those four words: reducing costs and increasing efficiency.
As the first mass-produced product to roll off the production line of the Ruipai factory, the M25 super electric drive has three industry-leading technologies, corresponding to each otherMaterials, motorswithElectrically controlledThree aspects.
Let's start with thatMaterials。The M25 super electric drive is equipped with a self-developed and designed high-voltage silicon carbide module, equipped with a silicon carbide chip that can adapt to 900V high voltage, and is small in size and meets the requirements of miniaturization. The use of nanocrystalline-amorphous alloy material (new silicon steel), with the characteristics of ultra-thin and low loss, Aion uses this new material to make the stator core of the motor, which can reduce the loss of the motor core by 50%, thereby effectively reducing the energy loss of the motor, and the efficiency of the motor under working conditions is increased to 975%, the maximum efficiency of the motor reaches 985%;Rare earth magnet materials can make the motor meet the two requirements of high power and low cost at the same time.
And then there'sMotor technology。The M25 super electric drive has a working speed of up to 22,000 rpm, which is known as the world's first mass-produced high-speed motor, while the current industry mass production level is 18,000 rpm.
The ultra-high speed can be achieved by relying on Aion's self-patented X-PIN flat wire stator technology and carbon fiber high-speed rotor technology, which can reduce the volume of the motor by 50% and increase the power density by 100% through the optimization of the flat wire winding method. When converted to actual weight, the M25 super electric drive motor can be more than 20 kilograms lighter than mainstream products on the market.
The last one isElectronic control algorithm technology。The M25 super electric drive adopts the industry's first high-voltage minir-PWM control algorithm technology, which reduces the motor current ripple by about 10% and improves efficiency by releasing degrees of freedom, comprehensive switching frequency, dead time allocation, and space vector selection optimization.
This technology is suitable for the 900V platform, and the efficiency of the M25 super electric drive reaches 92 by improving the efficiency of the electronic control algorithm, the efficiency of the motor design, and the efficiency of the light-load drive train5%, which is another industry-leading figure.
Which models will be used in the M25 Superdrive? So, which models will such a compact and efficient electric drive system be equipped with? According to GAC Aion's official disclosure, the M25 super electric drive will be the first to be installed in Haobo brand models, including the Haobo GT and Haobo HT currently on sale, and the new models launched in the future will also be equipped; At the same time, the manufacturer will also put this M25 super electric drive up and down some Aion models according to the specific situation.
Haobo GT] Haobo HT] Of course, we can also regard the M25 super electric drive as a product exclusively for Haobo brand models, and for the Haobo brand that takes the high-end route, such a tailor-made electric drive product is still very necessary.
The electric supercar Haobo SSR released last year is equipped with the M58 supercar electric drive that can achieve 1With 9 seconds and a top speed of 260 km h, many of the core technologies of this supercar-specific electric drive have been used in the conventional electric drive, and the mass-produced M25 super electric drive is actually the result of the continuous downward exploration of the M58 supercar electric drive technology.
Editor's reviewSince its establishment, GAC Aion has built an advanced, independent and controllable industrial chain layout, and formed a dual-brand pattern of Aion + Haobo, and has also gained a lot on the road of self-development and self-production of the whole chain of electric vehicles. From the perspective of self-developed and self-produced full-link, GAC Aion's own electric drive system is indeed the most cost-competitive method - not only can it create an electric drive system with matching performance according to the characteristics of its own products, which is more targeted than the general-purpose products purchased externally, but also can eliminate waste, and some additional things that cannot be avoided during external procurement can be dispensed with, successfully achieving the purpose of reducing costs and improving efficiency.
The official completion and commissioning of the Ruipai intelligent ecological electric drive plant is of far-reaching significance to GAC Aion and provides a strong guarantee for the future development of the company; For the industry, Aion's self-research and self-production road will also play an exemplary role, driving more Chinese enterprises to join the road of technological breakthroughs, from the past "market for technology" to "technology for market". (Photo by Li Zhe, Pacific Motor).