Lead
Introduction
In the era of hybrid 2.0, how does Xingtu "mix"? How to "super"?
Author 丨 Wang Xiaoxi, Wei Jinqiao
Responsible editor 丨 Luo Chao
Editor 丨Zhu Jinbin
The hybrid 2.0 era is coming in full swing.
Undoubtedly, the automobile industry is ushering in a "new axis era" with the "new four modernizations" as the turning point, and we, as well as everyone in it, are thriving. Behind this is the consensus of carbon peaking and carbon neutrality ultimate goal as the benchmark.
For car companies, every change is the baptism of blood and sand, and the accompaniment of light and shadow. However, no matter how much pressure is on the shoulders, the concept of "double carbon" and energy conservation and emission reduction is being popularized, consumers' acceptance of new energy vehicles is constantly improving, and the retail sales of new energy vehicles in 2021 have knocked on the door of 3 million vehicles.
Pressure creates power. Just on March 2, Xingtu Automobile's first new model equipped with "Star Core Power ET-i Full Engine Supermix Technology" (hereinafter referred to as "Star Core Power EI-i") was officially launched, marking the official "mixed" market of "Star Core Power EI-i".
Less than four months ago, WEY sounded the clarion call of "brand hybridization", becoming the first brand in the domestic independent camp to formally propose "comprehensive hybridization". This also shows that even if the pure electric vehicle model is still the main force in the new energy vehicle market, the hybrid market is becoming a new focus.
The "Star Core Power EI-i" technology carried by the Star Trail ET-i seems to be a step late. But in fact, this set of "Kunpeng Power DHT" technology originated from Chery Group, as early as the "13th Five-Year Plan" period, is one of the key special projects of the national 863 key research and development plan "new energy vehicles". Since the beginning of the "14th Five-Year Plan", Chery Group has invested 2 billion yuan in the research and development of this hybrid technology, and now it has accumulated a lot of money.
"Good food is never afraid of late", the technical advantages of this "3 engine 3 gear 9 mode 11 speed" hybrid system are quite obvious. Combined with the intelligent control system and the power architecture composed of high-performance battery packs, Xingtu Hybrid Technology has achieved a leap from stage 1.0 to stage 2.0. At a time when the industry is optimistically predicting that the sales of new energy vehicles will reach a record 6 million in 2022, it is a hit.
"33911" password
"3 Engine, 3 Gear, 9 Modes, 11 Speed", is a summary of the characteristics of this hybrid system by Xingtu Automobile. And this set of hybrid technology with the "33911" password has complete intellectual property rights, which is indeed remarkable among independent brands.
During the entire "Star Core Power ET-i" technical attack, the "Siege Lions" overcame many problems of complex system structure, engine control, transmission control, drive motor control and vehicle control deep coupling, and it took 5 years to finally complete this initiative.
Under the architecture of "Star Core Power ET-i", the 1.5T hybrid special engine has a maximum power of 115 kW and a maximum torque of 230 N·m, coupled with two motors of 55 kW/160 N·m and 70 kW/155 N·m integrated in the DHT box, and a specific power of up to 6.0 kW/kg (greatly improved by using V-type magnet technology) allows the intelligent combination of "3 engines" to stand at the top of the "despise chain".
Moreover, compared with existing hybrid technologies, the motors are smaller and the efficient interval is shifted forward due to the use of ultra-high density I-PIN flat wire motor technology. In addition, the predetermined target of a higher torque/weight ratio, combined with two-way machining of the tooth surface, low towing clutch, high efficiency oil pump, main oil pressure following strategy, etc., increases the maximum transmission efficiency of the system to more than 97.6%, reaching the same level of Japanese products.
It is worth mentioning that there is also FIO fixed-point injection oil cooling technology. The advantage is that when the motor is running, the multi-point uniform injection + rotor oil oil cooling technology used can effectively control the temperature rise of the motor and prolong the service life. Moreover, through more than 30,000 hours of bench verification accumulation, and more than 5 million kilometers of vehicle verification, this set of motors reached 1.5 times the average service life of the industry, which is quite powerful.
Needless to say, this combination punch brings the fuel economy of the Star Core Power ET-i to a very good extent. The StarWay Wind Chasing ET-i model equipped with this system achieves an average efficiency of 90% > of the electric drive of THEDC working conditions, a standard version of pure electric driving range of up to 105km, and a comprehensive driving range of more than 1000km.
At the same time, because of the use of more CRBS energy recovery systems that will be equipped on high-end models, in terms of fuel consumption, the comprehensive fuel consumption of Xingtu Chasing ET-i can be as low as 1L/100km (although this indicator is actually meaningless), and the fuel consumption of feed is 4.8L/100km, which really saves fuel for users and maintains a very low cost of using the car.
Looking back at the "3-engine, 3-stop, 9-mode, 11-speed", the "full-engine" range of the "9-mode" undoubtedly gives this second-generation DHT technology the advantage of generation difference. 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, according to different driving scenarios can be freely switched, and the most suitable and most efficient mode to match different road conditions.
The "11 speed" is the "siege lion" of Xingtu through the measured tens of thousands of data for comprehensive analysis, from which 11 gear combinations can cover all car scenes, including almost all the driving scenarios that users may encounter such as "extreme road conditions for urban commuting and long-distance travel", while achieving a balance between power and energy consumption.
For example, in the elevated or ring high-speed these medium-high-speed scenarios, overtaking is essential, at this time the "3 engines" will be at the same time, output comparable to the six-cylinder machine 510N· m torque, to achieve amazing explosive force. If the central or outer ring highway in first-tier cities such as Shanghai, Beijing and Chengdu is high-speed, the "Star Core Power ET-i" will directly use the optimal solution of the fuel drive mode and so on.
In fact, the fuel saving rate of urban working conditions is greater than 55%, and the fuel saving rate of high-speed working conditions is greater than 35%, which is only a side advantage of dht technology of "3 engines, 3 gears, 9 modes and 11 speeds". The reason why it is so powerful is that this DHT technology adopts the overall design of the MCU and the motor and the gearbox highly integrated three-in-one. In particular, it is worth mentioning that the "3 gears" in this set of DHT technology are particularly amazing, with the most 3 physical gears in the existing hybrid technology, which can cope with more working conditions, higher efficiency, and better balance of power and fuel consumption.
Behind these technical details of Xingtu Automobile, it is Chery's "Polytechnic Man" who has been innovating independently for a long time, making continuous breakthroughs in key core technologies, and gradually breaking the technical tradition of multinational giants' core technology monopoly.
The road of loneliness and courage has neighbors
Chery is the "science and engineering man" of technology, and also the "lone brave" of technology. As a high-end brand of Chery, the Xingtu EXEED brand has also gone through a lonely road since September 12, 2017.
At the press conference in the name of "technological awakening" at the beginning of the year, Dr. Wang Zhifu, secretary of the National Engineering Laboratory for Electric Vehicles, said his heart: Due to the long research and development cycle of the hybrid project, the layout of the whole vehicle is difficult, and it is very difficult for the enterprise to invest in research and development and promotion independently. Chery Group's technical solutions for the "Kunpeng Power DHT" project are very well demonstrated, thus standing out among many enterprises.
Chery Group has poured its superior resources into this set of DHT technology that it has painstakingly developed for many years. Even, DHT of various configurations have applied for relevant patents, and finally chose the technical configuration that is now put into production, which has today's "Chinese brand's first DHT that can be driven by dual motors; DHT with the largest block of Chinese brands; MCU and FCL integrated design, low cost, can match multi-platform models" of completely independent intellectual property technology.
"Virtue is not alone, but there will be neighbors." What Xingtu Automobile did not explicitly say is that in fact, as one of the key special projects of the "13th Five-Year Plan" National 863 Key Research and Development Plan "New Energy Vehicles", the "Dual Motor and Bridge Coupling DHT Hybrid System" project has been implemented by 5 car companies. Chery has delivered an excellent answer in this.
Although there is still a long way to go from the widespread popularization of new energy vehicles in China, according to the statistics of the Ministry of Public Security, as of September last year, the number of cars in the country was 297 million, while the number of new energy vehicles was only 6.78 million, accounting for only 2.3% of the total. However, the sudden outbreak in the following months gave us hope that the target of 6 million vehicles this year was just around the corner.
The market is stunning, transformative and transition-based. The hardships of research and development, anxiety and hope coexist. Not only that, Xingtu Automobile always adheres to the principle of "user-centric" for the needs of consumers, and serves users with technology. Therefore, this hybrid system that grows with the times integrates four major characteristics: "strong power, ultra-smooth, long endurance, and extreme fuel saving".
This set of DHTs, which has entered the hybrid 2.0 era, shows the outstanding effect of "strong power" in the power reserve and acceleration ability in the high-speed range. At the same time, with the support of TSD dual-shaft drive technology, the "ultra-smooth" shift process eliminates the possibility of power interruption and power loss.
In terms of "long endurance" and "extreme fuel saving", on the officially listed Xingtu Wind Chasing ET-i, as mentioned earlier, the standard version has reached a pure electric driving range of 105km (more than 92% of consumer demand), and the comprehensive driving range is more than 1000km. Reliable, stable and trustworthy, this is where the advantages of Starway Hybrid technology lie.
"Star Nuclear Power ET-i" is indeed as the country wishes, with the strength to surpass foreign advanced hybrid technology, and realize the independent control of Chinese car companies over the key core technologies of hybrid. What is more valuable is that the design of "not blindly pursuing high data and starting from the actual needs of users" reflects the more mature technical ideas of Xingtu Automobile in the 2.0 era. With the launch of the first application model "Star Trail ET-i", this set of DHT technology will also meet the verification of the market.
At the same time, the new generation of "dual-motor DHT hybrid technology" represented by "Star Core Power ET-i" will gradually replace fuel vehicles and other backward passenger car hybrid technologies. For consumers, the most important thing is that vehicles using this "dual-motor DHT hybrid system" have fully surpassed fuel vehicles in the performance of the four dimensions of energy consumption, power, smoothness and NVH. Fast-growing Chinese brands are using this technology as a new answer to the world's questions.
Of course, outside of technology, brands have risen to the point of extreme importance. The upward breakthrough in the name of "technological awakening" is the only choice for Chery and Xingtu to "surpass" its opponents in the current market. As the leader of China's own brand, Xingtu Automobile no longer needs the previous "Chinese-style" implications, but can become a powerful leader and promoter, labeled with glory and carrying the weight forward.
2021 has passed, 2022 has come, how to grasp the pulse of brand growth again? Undoubtedly, in this era that is destined to be more exciting, Xingtu Automobile will continue to confidently maintain an offensive posture in front of a strong and thick opponent, while "overtaking" the opponent in awe, while waving goodbye to traditional fuel in the name of "mix".