On January 7, Xingtu released ET-i supermix technology, which represents the official entry of EXEED Xingtu into the field of new energy hybrid. This technology is one of the key special projects of the "13th Five-Year Plan" National Key Research and Development Plan "New Energy Vehicles", during the entire technical attack period, the engineers of Xingtu Automobile have overcome many problems with complex system structure, engine control, transmission control, drive motor control and vehicle control, and created a new path of Chinese hybrid power with complete intellectual property rights.
In the super hybrid architecture announced this time, the "strongest Chinese core" fuel engine is equipped with a full-featured DHT gearbox, which realizes the core advantages of the industry-leading "3 engines, 3 gears, 9 modes and 11 speeds". Combined with the intelligent control system and the power architecture composed of high-performance battery packs, its performance has realized the leap of China's hybrid technology from the 1.0 stage to the 2.0 stage.
Analysis of the industry's first 3 engine 3 gear 9 mode 11 speed, the original simple numbers behind the "black technology"
If there are infinite possibilities in the future, then just focusing on the supermix architecture presented by today's entity, the industry's first "3 engines, 3 gears, 9 modes and 11 speeds" is also amazing enough.
"3 engines" refers to the intelligent combination of internal combustion engine and dual drive motor under this power architecture. Among them, the "1 engine" is a 1.5T hybrid special engine, which can produce 115kW of power and a maximum torque of 230N·m, in addition to this 1.5T engine, the hybrid special engine of Xingtu also includes 1.5TGDI and 2.0TGDI, which are more efficient and have better power performance, suitable for models with higher power requirements.
The other "2 engines" are dual motors of 55kW/160N·m and 70kW/155N·m integrated in the DHT box, respectively. Compared with the existing hybrid technology, the dual motors that can participate in the drive and the specific power of up to 6.0 kW/kg are the outstanding capital of the "3 Engine". Among them, the ultra-high density I-PIN flat wire motor technology makes the number of coil turns under the same volume more, realizes the motor volume is smaller, the efficient range is moved forward, the torque / weight ratio is higher than the predetermined goal, combined with the tooth surface two-way processing, low towing clutch, high efficiency oil pump, main oil pressure following strategy and other technical measures, so that the maximum transmission efficiency of the system exceeds 97.6%, reaching the same level of Japanese products.
The original FIO fixed-point injection oil cooling technology, in the motor operation using multi-point uniform injection + rotor oil oil cooling technology, this technology can effectively control the motor temperature rise, prolong the service life, after > 30,000 hours of bench verification accumulation, as well as > 5 million km vehicle verification accumulation, confirmed that the motor can reach 1.5 times the average service life of the industry. "3 gears" refers to the supermix architecture with the most 3 physical gears in the existing hybrid technology, and the more gears also determine that the system can cope with more working conditions, higher efficiency, and can optimally balance power and fuel consumption.
"9 modes" is the abbreviation of the 9 working modes unique to the supermix system. Including single motor pure electric, dual motor pure electric, engine direct drive, parallel drive, parking charging, driving charging and other 9 driving modes. Under the control of the intelligent system, they can freely switch according to different driving scenarios, and match different road conditions with the most suitable and efficient mode. More driving modes naturally have a wider range of adaptation, which is also a strong generation difference advantage of the second generation hybrid system compared with the first generation of hybrid systems.
"3 Engine 3 Gear 9 Mode 11 Speed" Even by simply arranging and combining, we can calculate dozens of working modes. The "11 speed" here refers to the comprehensive analysis of tens of thousands of data measured by Xingtu Automotive engineers, from which 11 gear combinations can cover all car use scenarios, covering almost all driving scenarios that users may encounter, including extreme road conditions such as urban commuting and long-distance travel, but also achieving a perfect balance between power and energy consumption. This "11 speed" can be said to be the essence of the best of the best through the accumulation and analysis of big data. For example, in the initial stage, this is the stage with the lowest thermal efficiency and the largest energy consumption of the internal combustion engine, so in this stage, we set up a dual-motor pure electric drive. It can not only maintain the economical energy consumption of the vehicle, but also change the inherent perception of the soft start of the hybrid model with the powerful torque generated by the industry's unique dual motor drive. When the low to medium speed does not require a large torque, the system automatically selects one of the single motors to drive, and our energy consumption is lower than in the start-up stage. On the elevated or ring highway, overtaking in the middle and high-speed sections is essential, and we know that the less time it takes to overtake, the safer it is, and this is when the 3 engines are on the battlefield and output 510NM of torque comparable to a six-cylinder gasoline engine.
If it is a super metropolis life friend such as Shanghai, Beijing, chengdu, etc., going to work often has to go through the ring highway, when the high-speed stage of the internal combustion engine has reached its optimal thermal efficiency range, then let it be directly driven. "9 mode 11 speed" makes the fuel saving rate of the supermix system is also the world's leading level, and the fuel saving rate of the low power mode is > 50%. The fuel saving rate of urban working conditions >55%, and the fuel saving rate of high-speed working conditions > 35%.
Starting from the demand to create 4 core value points, technology allows fish and bear paws to be both acceptable
Technology serves people, and the progress of technology is to make everyone's life more convenient, more comfortable and more relaxed. The "3 engines, 3 gears, 9 modes and 11 speeds" of the super hybrid architecture are closely related to the interests of users. The four core values of "strong power, ultra smoothness, long endurance, and extreme fuel saving" are combined, creating a fish and bear paw that can obtain both scientific and technological benefits.
From the beginning of the development of hybrid technology, energy saving is its core purpose. The power performance of hybrid models, especially the "strong power" in the high-speed range, has always been a luxury that cannot be combined. And has stepped into the hybrid 2.0 era of supermix technology, the two-wheel drive version of the total power of 240kW, the maximum wheel torque of more than 4000 N· m, 100 km acceleration of less than 7s, the total power of the four-wheel drive version of 338kW, the maximum wheel side torque of more than 6300 N · m, 100 km acceleration into the 4s level, the torque of the big six cylinder, the performance of the car speed has become a matter of course. Especially in the high-speed range, the power reserve and acceleration capability are particularly prominent, which is also a performance advantage with the generation difference with 1.0 technology. At the same time, with the blessing of TSD dual-shaft drive technology, there is no power interruption and power loss during the shifting process, and the driving smoothness feels "super smooth", comparable to pure electric models.
Returning to the hybrid model "long endurance" and "extremely fuel-efficient" housekeeping skills, supermix technology naturally has a good performance, in addition to being more reliable and more stable, "blindly pursuing high data, starting from the actual needs of users" design, but also fully reflects the more mature technical ideas in the 2.0 era. Is it necessarily better to have a range of 2,000 kilometers than 1,000 kilometers? Or is it more scientific to design according to the actual daily needs of users? Supermix technology is answered with practical application results. The intelligent hybrid control system adopted by it allows the three engines to always work in the best performance range, and the natural energy consumption is lower; the full road condition adaptive power mode, the power control system and the navigation system are interconnected, and the road condition is identified in advance and the optimal power scheme is intelligently realized; and the CRBS energy recovery system is adopted.
The application of these high-tech technologies has allowed hybrid models to gradually get rid of the initial mode of increasing energy portability to improve data in the 2.0 era, and also let The new hybrid models of Xingtu Automobile get rid of larger and heavier fuel tanks and batteries. The average efficiency of the NEDC electric drive also achieves an industry-leading > of 90%. At the same time, the fuel economy of the 1.5T hybrid special engine, intelligent dual motor torque distribution and intelligent hybrid control system, so that the transmission efficiency of the supermix can reach 97.6%, the comprehensive fuel consumption can reach 1L/100km, and the feed fuel consumption is 4.8L/100km. Let the user's oil and electricity advantages be fully occupied, and it can be afforded and saved. On the upcoming supermix technology's first model, the StarWay Wind Chasing ET-i, the standard version can reach a pure electric driving range of 105km and a comprehensive driving range of more than 1000km. Let users bring daily commuting without fuel, high-speed long-distance no worries about the car experience.
The national "black technology" aura is added, and the super-mixed technology has a long way to go
At the press conference in the name of "Technological Awakening", Dr. Wang Zhifu, Secretary of the National Engineering Laboratory for Electric Vehicles, said:
Hybrid projects due to the long R & D cycle, vehicle layout difficulties, enterprises independently invest in research and development and promotion is very difficult, so the state in the past years of scientific and technological innovation research and development plans for hybrid system research as a key research topic.
As one of the key projects of the "Thirteenth Five-Year Plan" National Key Research and Development Plan "New Energy Vehicles", the project has very high requirements for overall performance, many vehicle companies have invested a lot of energy and technical force in the declaration and research of the project, Chery Group has a strong advantage in power system research and development, and the technical solution demonstration for the supermix project is very sufficient, thus standing out from many enterprises. This is the first DHT that can be driven by dual motors in China today; the DHT with the most gears of Chinese brands; the independent intellectual property technology with the integrated design of MCU and FCL, low cost, and can match many advantages such as multi-platform models.
In just a few years, China has relied on new energy and energy-saving vehicle technology to gain a firm foothold on the world automotive stage, becoming the world's largest producer and sales country of new energy and energy-saving vehicles, and the promotion and application of new energy and energy-saving vehicle technology will lay the foundation for the "3060" double carbon target in China's transportation field. The advent of supermix also allows China's hybrid technology to have the strength to surpass foreign advanced hybrid technology for the first time, which is a veritable national hybrid technology "black technology", which realizes the independent control of the key core technologies of hybrid by Chinese car companies.
The launch of Xingtu Supermix Technology has made China's hybrid technology stand at the forefront of global automotive technology; the upcoming launch of the first application model "Xingtu Chasing Wind ET-i" has enabled Xingtu Automobile Hybrid Technology to take root and blossom. In the name of "technological awakening", we will make an upward breakthrough, promote China's new energy vehicle technology to face the wind and waves, move forward in full force, run to the far side of the "dream of industrial power", and achieve the great vision of conquering the sea of stars.