Text / Zilan
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When it comes to hybridization, consumers are probably most familiar with Toyota's THS and Honda's i-MMD technology. Because of years of technology and experience accumulation, the two have formed a very mature hybrid technology, occupying a considerable share in the market.
However, as Chinese brands begin to exert their strength, hybrid technology has shown a situation of a hundred flowers. Especially in 2021, there will be BYD DM-i, Great Wall Lemon DHT, Changan Blue Whale IDD, Chery Kunpeng DHT and Geely Lei Divine Intelligence Qing Hi · The X hybrid system has all appeared, becoming a new symbol of China's automobile development in 2021.
Xingtu Automobile followed suit, firing the first shot at the hybrid market in 2022 and announcing that the Star Nuclear Power ET-i architecture has achieved a leap in China's hybrid technology from the 1.0 stage to the 2.0 stage. Why does Xingtu have such confidence? Today, the author will introduce them one by one from the aspects of technology, status and strength.
Dare to call the star core power a leap forward in China's hybrid?
No matter how the hybrid technology is upgraded, it comes down to the needs of consumers. Relatively speaking, the first advantage of hybrid models is fuel saving, especially the Toyota THS system, which was born nearly 25 years ago, and fuel saving has become the first label. However, the reason why hybrid models do not occupy a larger share in the market is because the price is too high and it is difficult for ordinary consumers to bear it.
In addition to the higher price, there are also shortcomings in reliability, power, and smoothness. For example, Toyota THS, although the technology is mature, stable and reliable, but because the motor and engine can not be decoupled, acceleration performance and high-speed fuel consumption is not excellent.
Although the Honda i-MMD brings better power with high power, the increased direct connection mechanism brings the impact of power flow switching, which is a test of the durability of the structure.
Returning to the hybrid of the Chinese brand, the BYD DM-i is quite similar to the Honda i-MMD, replacing it with a larger power battery; the Great Wall DHT solves the impact of power switching by adding a set of two-speed transmissions, which is better adaptable; and the Geely Ray God Intelligence Engine Hi · X introduced a 3-speed DHT, which solved many problems such as smoothness and power through two sets of planetary gears.
It can be said that China's hybrid technology, as a latecomer, has made great breakthroughs in technology. The reason why star core power ET-i full engine supermix technology has achieved the leap of China's hybrid technology from the 1.0 stage to the 2.0 stage is because on the basis of these technologies, it is the only 3-engine driven hybrid system in the industry, whether it is the advanced nature of the technology or hard power, it is not too much to call China Hybrid 2.0.
What black technology are "3 engines, 3 gears, 9 modes and 11 speeds"?
The industry's first "3 engines, 3 gears, 9 modes and 11 speeds" seems to be a simple number arrangement, but there are many black technologies hidden in it.
The first is the 3 engines we just mentioned. It refers to the drive form composed of one engine + two electric motors. One of the engines represents a 1.5T hybrid engine that produces 115 kW of power and up to 230 N.m of torque.
The other "2 engines" are two motors integrated in the DHT cabinet that are 55kW /160N.m and 70kW /155N .m 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".
The ability of both motors to participate in the work brings more flexibility to the drive form, for example, when the initial stage, you can choose a motor to participate in the work, avoid the situation of the big horse-drawn cart, improve the efficiency of the motor, and reduce energy consumption.
Moreover, another benefit of dual motor drive is that it can be combined with TSD dual shaft drive technology to achieve seamless switching of power flow. When a vehicle needs to convert the power of an electric motor and a direct-drive engine, ET-i can achieve a "soft landing" of one of the motors by trading between the power of the two motors.
To put it bluntly, ET-i can not only be like Toyota THS, the power switch is seamless, but also like i-MMD, to achieve the integration of engine direct drive.
This is not enough, in order to solve the efficiency problem of the engine high-speed direct drive, and added 3 gears physical gear, these three gears can not only adjust the torque and speed of the engine at low, medium and high speed of the vehicle, but also when the engine generates electricity for the motor, through different gears of gear ratio to adjust the speed of the engine, improve the conversion efficiency.
"9 modes and 11 speeds" is through the comprehensive analysis of tens of thousands of data, from which 11 gear combinations can cover all car scenes, not only covering almost all driving scenarios that users may encounter, including extreme road conditions of urban commuting and long-distance travel, but also achieving a balance between power and energy consumption. In short, according to the current driving conditions, the most suitable combination of drive and gear is selected to maximize efficiency and save energy consumption.
In short, "3 Engines, 3 Gears, 9 Modes, 11 Speeds" has achieved the four core needs of "strong power, ultra smoothness, long endurance, and extreme fuel saving", so that fish and bear paws can have both.
The tip of the iceberg ET-i full-engine supermix can be expected in the future
Holding the technical advantages of "3 engines, 3 gears, 9 modes and 11 speeds", the star core power ET-i full engine supermix technology has brought us many surprises. Of course, even the best technology must be practiced, just as the so-called mule is a horse, pulling out and slipping.
In terms of power, the total power of the two-wheel drive version reaches 240kW, the maximum wheel torque exceeds 4000N.m, the acceleration of 100 km is less than 7s, the total power of the four-wheel drive version is 338 kW, the maximum wheel side torque exceeds 6300N.m, and the 100 km acceleration enters the 4s level.
In terms of endurance, the upcoming first application model "StarWay Wind Chasing ET-i" can reach a pure electric driving range of 105km and a comprehensive driving range of more than 1000km in the standard version.
However, this is only the tip of the ICEberg of ET-i, and there will be more and stronger power architecture models in the future. For example, Xingtu's hybrid engine also includes 1.5TGDI and 2.0TGDI, which are more efficient and have better power performance, which are suitable for models with higher power requirements.
In addition, the combined design of the dual motor drive also leaves enough margin for future power upgrades, and a better power configuration can be selected in the future according to the rising demand and the improvement of motor technology. Also, with the accumulation of big data, the designers of Xingtu will have more experience in tuning, and ET-i will become better.
It is also worth noting that ET-i full engine supermix technology is one of the key special projects of the "13th Five-Year Plan" national key research and development plan "new energy vehicles", of which both the technical route is recognized by the state, and there is also the ability to achieve independent control of hybrid technology, which is of great significance to Xingtu and even China's automobile development.
summary:
Xingtu Xingxing Nuclear Power ET-i Full Engine Supermix Technology made a stunning appearance, and the hybrid technology of Chinese brands has stood at the forefront of global automotive technology. For the young brand of Xingtu, with safety as the foundation and technology as the core competitiveness, in the fiercely competitive high-end market, it has begun to take shape as a latecomer. In the future, Xingtu will surely work with other Chinese brands to help Chinese brands reach new heights.