The Great Wall New Energy Dry Goods Conference Released Hi4 Hybrid System
Mar 11, 2023| On March 10, the "Great Wall Automobile Intelligent new energy dry goods Conference" was held in Haver Technology Center in Baoding. In addition to the new energy declaration of "Great Wall intelligent new energy, more province, farther and safer", Great Wall Automobile released the Hi4 intelligent four-drive electric hybrid technology based on forest ecology. The Hi4 smart four-wheel-drive electric hybrid technology will be first installed on the new Harvard vehicle released in April, and will be fully installed on new energy products in 2024.
Great Wall Motor New Energy Declaration
In the face of the change of The Times, Great Wall Motor officially issued a new energy declaration "Great Wall intelligent new energy, more save, farther and safer", and reiterated the original intention of car building, let conscience car building back to the essence, let integrity car building back to the essence, let core technology lead car building back to the essence. In this regard, Great Wall Motor President Mu Feng said: "Grasp the trend, rather than chasing the trend is more important! The biggest challenge in managing a business is how to make the right judgment between certainty and uncertainty. Only by grasping long-term trends and adhering to long-termism can we win the future."
Great Wall Motor has built an industry-leading energy system of "photovoltaic + distributed energy storage + centralized energy storage", and completed the full value chain layout of "solar - battery - hydrogen - vehicle power". Among them, in the field of photovoltaic, Great Wall Motor is promoting the industrialization of perovskite solar photovoltaic technology; In the field of distributed energy storage, Great Wall Motor has made a comprehensive layout in the core areas of mineral resources, battery materials, energy storage system and battery recycling, centering on the upstream and downstream of the industrial chain. Great Wall Motor is one of the earliest automobile enterprises in the field of hydrogen energy in China. It has realized the full field, full scene coverage and full industrial chain enabling. In the field of vehicle power, Great Wall Motor has three parallel tracks of hybrid, pure electricity and hydrogen energy, accelerating to seize the commanding heights of new energy technology.
In terms of intelligence, Great Wall Automotive intelligent chassis integrates core technologies such as drive-by-wire steering, drive-by-wire control, CTC and integrated die-cast aluminum body. Intelligent cockpit technology has the capability of full-stack software and hardware self-research, and intelligent driving technology has the capability of full-domain self-research from sensing hardware to computing platform. At present, the assisted driving mileage of Great Wall Motor users has exceeded 36 million kilometers, and the learning time of the automatic driving data intelligent system has exceeded 500,000 hours, promoting the rapid iteration of intelligent driving products and moving towards the full scene.
New intelligent four-wheel drive electric hybrid technology Hi4
The new intelligent four-drive electric mixing technology Hi4 has been officially released. H (Hybrid) represents hybrid, i (intelligent) represents intelligent, and 4 represents (4WD) four-drive system. The new Hi4 intelligent four-drive electric mixing technology takes "four-drive experience, two-drive price, four-drive performance, and two-drive energy consumption" as the core. The technology will be used for the first time in the recently launched new Harvard new energy models. Great Wall Motor's full range of new energy products will also be widely available in all-wheel-drive in 2024, and the technology will be fully open source in the future.
The new intelligent all-wheel-drive electric hybrid technology Hi4 has two powertrains with A system power range of 220-340kW, which can cover A-C class models. 1.5L/1.5T hybrid special engine, the highest thermal efficiency can reach 41.5%, compared with the previous generation model, the front end accessories are completely cancelled, the fuel consumption is also reduced by 6%-7%, the front drive module transmission efficiency of 98%, the rear drive module motor efficiency of 96.5%. Combined with the low internal resistance battery (19.94kWh and 27.5kWh), which has the function of fast charge, the battery can run more than 100km.
In terms of driving mode, the Great Wall Hi4 hybrid system adopts series and parallel +2 gears + front and rear axle dual motor architecture. Compared with the previous generation, it adds pure electric four-drive, parallel four-drive and two-axle energy recovery mode. "Three engines and nine modes" can meet the vast majority of vehicle scenarios.
High-performance core components are not simple superposition of functions, but through the front and rear axle double motor series and parallel electric four-drive new configuration, so that the vehicle efficiency plays a better role. By means of dynamic decoupling and efficient dynamic adjustment of dual motors in front and rear axles, the new Hi4 expands the application scenario of series and parallel configuration of traditional dual motors, which can realize the improvement of power performance, economy and road adaptability in all working conditions at full speed. At the same time, the new Hi4 has a more perfect 50:50 axle load distribution, allowing the vehicle to achieve a higher performance ceiling.