Car Review Observation, Car Review Agency, No. 508
Foreword: Only one day after Changan's Blue Whale iDD hybrid model, Chery Star nuclear-powered ET-i full-engine supermix technology came.
On January 7, the "Star Core Power ET-i Full Engine Super Hybrid" technology was officially released, and it was also unveiled with the Starway LX Super Hybrid Model - Starway Wind Chasing PHEV.
According to the car review agency, in the power architecture of "Star Core Power ET-i Full Engine Super Hybrid" announced this time, the "strongest Chinese core" fuel engine with a full-function DHT gearbox has achieved the industry-leading "3 Engine 3 Gear 9 Mode 11 Speed" technology core advantages, and the strength of Chery's "domestic technology brother" is fully displayed.
1
33911, Behind the "Black Tech"
We know that the Chery brand started with core components such as self-manufactured engines and transmissions, and the market is also expanding step by step, and it is also a great success in overseas exports.
If you look closely, you will find that what supports Chery's steady growth is its strong technical endorsement.
The new "Star Core Power ET-i Full Engine Super Hybrid" power architecture, the biggest highlight is the industry's first "3 Engine 3 Gear 9 Mode 11 Speed" combination.
Among them, "3 engines" refers to the intelligent combination of internal combustion engine and dual drive motor under the power architecture.
"1 Engine" is a 1.5T hybrid special engine, can produce 115kW of power and a maximum of 230N .m of torque, in addition to this 1.5T engine, Xingtu hybrid special engine also includes 1.5TGDI and 2.0TGDI two, higher efficiency, more excellent power performance, suitable for models with higher power requirements.
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".
Among them, the highest transmission efficiency of the system exceeds 97.6%, reaching the same level of Japanese products. The original FIO fixed-point injection oil cooling technology can effectively control the temperature rise of the motor and prolong the service life.
"3 gears" refers to the "Star Core Power ET-i Full Engine Super hybrid" power architecture with the most 3 physical gears in the existing hybrid technology, which can cope with "low, medium and high" working conditions and optimally balance power and fuel consumption.
"9 mode" is the abbreviation of the 9 working modes unique to the "Star Core Power ET-i Full Engine 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, the most suitable and efficient mode is used to match different road conditions.
"11 speed" refers to the combination of 11 gears that 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.
It can be said that the fuel saving rate of the "9-mode, 11-speed" system of "Star Core Power ET-i Full Engine Supermix" 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%.
2
Power, endurance and fuel saving, a lot
When it comes to the three most obvious features of star core power ET-i full engine supermix technology, that is, "strong power", "long endurance" and "super fuel saving".
First of all, the "strong power" of the star core power ET-i full-engine supermix is mainly reflected in the strong output, and the total power of its two-wheel drive version reaches 240kW, the maximum wheel torque exceeds 4000N.m, and the acceleration of 100 kilometers is less than 7s; The all-wheel drive version has a total power of 338kW, the maximum wheel side torque exceeds 6300N.m, and the acceleration of 100 kilometers to 4s level, easily achieving six cylinder torque and performance car level acceleration.
So how can "long endurance" and "extremely fuel-efficient" be perfectly balanced with "strong power"?
Star core power ET-i full engine supermix technology, once again gives an answer.
Its intelligent hybrid control system allows the 3 engines to always work in the best performance range, and the natural energy consumption is lower; Adaptive power mode of full road conditions, interconnects the power control system and the navigation system with dual cores, identifies the road conditions in advance and intelligently realizes the optimal power scheme; CrBS energy recovery system is adopted.
These high-tech applications have allowed Xingtu Automobile's new hybrid models to 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 "star core power ET-i full engine super hybrid" transmission efficiency of 97.6%, the comprehensive fuel consumption can reach 1L/100km, feed fuel consumption of 4.8L/100km.
It is commendable that the hybrid technology is one of the key special projects of the "13th Five-Year Plan" National Key Research and Development Plan "New Energy Vehicles", and during the entire technical attack period, the engineers of Xingtu Automobile have overcome many problems such as engine control, transmission control, drive motor control and vehicle control deep coupling, and created a new path of Chinese hybrid power with complete intellectual property rights.
3
The first model, the Star Trail ET-i, unveiled
As the first model of the "Star Core PowerED ET-i All-Engine Supermix" technology, the strength of the Star Trail ET-i is no less than that of THE BYD DM-i series.
According to the car review agency, the overall shape of the StarWay Wind Chasing ET-i is consistent with the ordinary version of the fuel model, its length is 4533mm, the body width reaches 1848mm, and the body wheelbase reaches 2870mm.
The difference is that the wind chasing ET-i has made slight adjustments in the styling details, including the PEV logo added to the rear of the car, and the charging interface has been set above the left front wheel eyebrow to highlight its own plug-in model identity.
The biggest highlight of et-i is in terms of power.
The Chasing WIND ET-i is equipped with a plug-in hybrid system consisting of a 1.5T engine + electric motor, in which the maximum power of the engine is 115 kW and the peak torque is 230 N·m. The official wind chasing ET-i has a cruising range of more than 1000km, a cruising range of 105km in pure electric mode, and an acceleration time of 6.8 seconds for 100 km/h.
In addition, the fuel consumption of the feeder is 4.8L, and the fuel consumption of the comprehensive working conditions is only about 1L, which fully has the strength of the cross-level PK.
It is worth mentioning that the "Star Core Power ET-i Full Engine Super Hybrid" technology is only the tip of Chery's iceberg, and after this, there will be more and stronger architectural patterns.
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