China promised the world to reach carbon neutrality in 2060, the transformation of the automobile industry is a necessary move, in the Society of Automotive Engineers in China issued the "Energy Saving and New Energy Vehicle Technology Roadmap 2.0", and in which clearly put forward the next 15 years of traditional cars to be "full hybridization" policy, the major manufacturers mushroomed to release their own hybrid technology, but also frequently released the world's first, breaking the world record and other leading global hybrid technology, let us no longer envy the hybrid technology of joint venture manufacturers, Next, we will take stock of those domestic hybrid technologies that are "proud of the crowd".
Geely Zhiqing
Ray's Mind Hi · X includes a 1.5TD/2.0TD hybrid engine, as well as a DHT (1-speed transmission)/DHT Pro (3-speed transmission) hybrid special transmission, supporting full coverage of A0-C class models, while covering HEV, PHEV, REEV and other hybrid technologies.
The DHE15 (1.5TD) hybrid engine has a maximum torque of 225 N·m and a maximum power of 110 kW. The use of 350 bar high-pressure in-cylinder direct injection to make the combustion more complete, supercharged intercooling to reduce the intake air temperature, with the combustion at high load to become stable Miller cycle and low pressure EGR and other technologies to improve engine efficiency; Through five integrated technologies such as electrification integration, it is shortened to 77% of the axial size of the same power engine, and the thermal efficiency of the engine reaches 43.32%, breaking the thermal efficiency record of 43.04% of BYD Xiaoyun hybrid engine.
The 3-speed DHT Pro supports ejection start-up, with a minimum parallel speed as low as 20km/h, which also means that whether it is daily driving or high-speed cruising, the entire power system is in a relatively efficient range, and it can also switch to parallel mode in more urban conditions to achieve higher efficiency, stronger power and more economical fuel consumption.
Chery Kunpeng
Chery first proposed the concept of "Chery 4.0 Era" this year, and the overall technical architecture was named: "Chery 4.0 Era Global Power Architecture", which includes fuel, hybrid, pure electricity and hydrogen power and other new energy forms. Fuel and hybrid, also known as Kunpeng Power, are composed of Chery's fourth-generation engine and DHT hybrid special gearbox.
The world's first full-kinetic hybrid configuration Kunpeng DHT is the first dual motor drive, 9 working modes, 11 combined gears, SD dual-axis drive of The Chinese brand, so that smooth, powerful and efficient integration, can realize single/double motor pure electric drive, range extension, parallel, engine direct drive and other functions, almost all applications of the car scene, the comfort of the car experience is greatly improved.
Chang'an Blue Whale idd
Changan iDD Hybrid System is a P2 hybrid architecture that places the drive motor between the engine and the gearbox. It is equipped with a 1.5-liter turbocharged hybrid engine with a maximum power of 126 kW and a maximum torque of 260 N·m, and is equipped with a multi-gear DCT.
The Blue Whale iDD hybrid system includes a Blue Whale engine, a Blue Whale electric transmission, an oversized PHEV battery, and a control system.
The system provides the vehicle with full speed domain, full field domain, full temperature domain, full time domain, that is, in the daily use of the scene of starting, overtaking, north and south areas and other different conditions can provide stable power output.
The electric drive transmission uses S-winding winding technology, high-efficiency high-pressure hydraulic system, three-clutch integration technology, intelligent electronic double pump technology and other core technologies to achieve 90% of the comprehensive efficiency of electric drive, improve driving efficiency, reduce fuel consumption and other effects.
Great Wall Lemon
The release of the Great Wall Lemon DHT represents a complete break of the long-term monopoly of the joint venture brand in the field of hybrid, lemon hybrid DHT has a hybrid system, two power architectures, and three sets of powertrains.
A hybrid system refers to the dual motor hybrid structure, with pure electricity, hybrid connection, series, energy recovery and other efficient working modes; the two power architectures refer to heV and PHEV two power architectures, HEV to low fuel consumption, high power as the main, the use of HEV power A class SUV comprehensive fuel consumption as low as 4.6L/100km. The 3 sets of powertrain refers to 1.5L hybrid special engine + DHT100, 1.5T hybrid special engine + DHT130, 1.5T hybrid special engine + DHT130 + P4, which is used to cope with different levels of products.
BYD dmi
BYD's fourth-generation DM hybrid technology is divided into two technical routes, one is the DM-i hybrid system that tends to low fuel consumption, and the other is the DM-p hybrid system that tends to performance.
The DM-i hybrid system uses a dedicated 1.5L high-efficiency engine for Snap Cloud Plug-in hybrid, using Atkinson cycle, with a maximum power of 81 kW, a maximum torque of 135N·m, a compression ratio of an astonishing 15.5:1, and a thermal efficiency of 43.04%.
BYD DM-i adopts a dual-motor EHS electromissive system, the engine mainly plays a role in power generation, most of which is driven by pure electricity, avoiding the minimum efficiency range of the two power, and working in the efficient range each to achieve the effect of efficient utilization and ultra-low energy consumption.
In order to maximize the efficiency of the engine as much as possible, the cooling water pump, air conditioning compressor, etc. are all changed to battery drive, and the EGR exhaust gas recirculation system is used to improve the combustion efficiency of the engine. With ultra-low fuel consumption, excellent NVH, strong power and so on to harvest a large number of consumers.
summary
Hybrid technology in 2021 can be described as blooming everywhere, but due to the problem of starting time, the patent protection of the internal combustion engine by international manufacturers is almost airtight, and the premise of wanting to develop their own unique technology is to bypass all patents, and the use of patents that should be the only way for scientific research has become an insurmountable iron wall. However, in such a harsh environment, the respective main manufacturers can break down the patent barriers while achieving transcendence, and the difficulty of day and night is unimaginable.
For example, the BYD DM-i system, after the professors at Tsinghua University learned about it, decided to compile it into the textbook. The upward road of China's independent brands will directly affect the direction of the entire market, and one day the independent brands will stand on the top of the world, which is also inseparable from the cultivation of generations of scientific researchers, I hope you will meet at the top!