On January 7, the "Star Core Power ET-i Full Engine Supermix" technology was officially released, which is one of the key special projects of the "13th Five-Year Plan" National Key Research and Development Plan "New Energy Vehicles", the entire technology includes many problems such as engine control, transmission control, drive motor control and vehicle control deep coupling, creating a new path of Chinese hybrid power with complete intellectual property rights.
Among the "Star Core Power ET-i All-Engine Super hybrid" power architecture announced this time, the most noteworthy thing is that the "strongest China Core" fuel engine is equipped with a full-featured DHT transmission, which realizes the industry-leading core advantage of "3-engine, 3-speed, 9-mode, 11-speed" technology. 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"
Among them, "3 engines" refers to the intelligent combination of internal combustion engine + dual drive motor. The "1 Engine" includes a 1.5T hybrid engine that produces 115 kW of power and a maximum torque of 230 N.m. Not only that, Xingtu also offers 1.5TGDI and 2.0TGDI two more efficient and better power performance engines, which can be applied to models with higher power requirements.
The other "2 engines" are two motors integrated in the DHT box, and the power parameters are 55kW /160N.m, 70kW /155N.m respectively. Among them, the motor also provides ultra-high density I-PIN flat wire motor technology, which can make more coil turns under the same volume, thus achieving the predetermined goal of miniaturization of motor volume and more efficient torque/weight ratio. In addition, combined with the two-way processing of the tooth surface, the low-towing clutch, the high-efficiency oil pump, the main oil pressure following strategy and other technical measures, the maximum transmission efficiency of the system exceeds 97.6%, reaching the same level of Japanese products. Not only that, Star Core Power has also created fio fixed-point injection oil cooling technology, which adopts multi-point uniform injection + rotor oil oil cooling technology when the motor is running, which can effectively control the temperature rise of the motor and prolong the service life. After > 30,000 hours of bench verification accumulation, and > 5 million km vehicle verification accumulation, the experiment confirmed that the motor can reach 1.5 times the average service life of the industry.
"3 gears" refers to the "Star Core Power ET-i Full Engine Supermix" power architecture with the most 3 physical gears in the existing hybrid technology, and more gears also determine that the system can cope with more working conditions, higher efficiency, and can optimally balance power and fuel consumption. At present, most of the electric vehicles on the market are single-speed gear settings, only some high-end models provide 2 gears, and 3-speed models are even fewer.
"9 modes" refers to the abbreviation of the 9 working modes. 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.
Finally, "11 speed" refers to 11 gear combinations that can cover all car scenes, which covers almost all driving scenarios that users may encounter, including extreme road conditions of urban commuting and long-distance travel, such as the starting stage, which is the stage with the lowest thermal efficiency and the largest energy consumption of the internal combustion engine, so at this stage, the setting is a dual motor pure electric drive; and when the low speed does not require large torque, the system will automatically switch to a single motor for driving, thereby reducing energy consumption; for example, to the overtaking stage of the medium and high-speed range, At this time, the system will switch the 3-engine mode of the strongest power, which can burst out the maximum torque of 510Nm; finally, under the high-speed cruising section, it will reach the optimal thermal efficiency range of the internal combustion engine, so let it drive directly. In the end, the "9-mode 11-speed" made the low power mode of the "Star Core Power ET-i Full Engine Super hybrid" system > 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 both fish and bear paws
In terms of fuel saving, the intelligent hybrid control system adopted by Xingtu makes the three engines always work in the best performance range, and the natural energy consumption is lower; the adaptive power mode of the whole road condition, the power control system and the navigation system are interconnected, 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 1.5T hybrid special engine, with intelligent dual motor torque distribution and intelligent hybrid control system, makes the transmission efficiency of "Star Core Power ET-i Full Engine Super hybrid" reach 97.6%, and the comprehensive fuel consumption can reach 1L/100km. On the upcoming "Star Core Power ET-i Full Engine Super Hybrid" technology first model - 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.
With the launch of the "Star Core Power ET-i Full Engine Supermix" technology, China's hybrid technology stands at the forefront of global automotive technology; its first application model "Xingtu Chasing Wind ET-i" is also about to be launched, which is the second SUV model under the Xingtu brand, the Xingtu LX, renamed and positioned as a compact SUV model. Chasing the wind is the third product named after the name of the Chinese after the moon and the clouds.