On March 26, the Great Wall Heavy Truck Hi4-G technology co-creation conference was held in Baoding.
This technology event put users at the center of the stage for the first time. Four practitioners from different logistics scenarios and the technical team jointly recounted their participation in the research and development process of Great Wall's heavy-duty truck Hi4-G.
During this period of R&D, the Great Wall technical team has been at the front line of user transportation all year round, following the drivers one trip after another, from rolling mountainous areas to plain highways, looking for the best solution in the minds of engineers. From "frustration after failure" to "saving fuel bit by bit", from "not understanding each other" to "co-creation partners with tacit understanding", a total of 1,026 sets of scene data have been collected, and through the iterative mode of "one calibration per day", the core demands of users for fuel saving, power, and scene adaptation have been transformed into feasible technical solutions, making co-creation card friends the first R&D center.
With the help of hundreds of co-creation officers, Great Wall Heavy Truck has made products that are closest to user scenarios. Great Wall Commercial Vehicle CTO Sun Yu released data on site, showing that according to the actual test data of users with more than 5 million kilometers, the fuel consumption of Great Wall Hi4-G heavy trucks on plain highways is 3-4L lower than that of traditional diesel heavy trucks, and the fuel consumption of plain express transportation is as low as 19.9L/100km; the fuel consumption of cold chain transportation in mountainous areas has dropped by more than 30%, and the comprehensive fuel saving rate of complex routes has reached 15%-25%.
From a technical point of view, the Hi4-G super hybrid system is equipped with the world's first 8-speed intelligent hybrid transmission for heavy trucks, which supports intelligent switching of hybrid multi-gears and is suitable for scenes such as plain highways, mountain climbing, and heavy-load starting. The power response efficiency is improved by 20%. Combined with the Cummins 13L high thermal efficiency engine, it realizes efficient coordination between diesel and electricity, with a total horsepower of over 1,000. Its industry-first three-engine intelligent power architecture (P2+P2.5 dual motors + diesel engine), dual motors are independently controlled, uphill assist, downhill recovery, and the endurance in mountainous scenes is increased by 15%. In addition, the intelligent domain control system can analyze load, road conditions, and timeliness requirements in real time, and automatically switch between ten drive modes.
At the press conference, Wei Jianjun, Chairman of Great Wall Motors, also announced two major plans: opening the laboratory to welcome all imported car fleets and truck drivers to challenge, and also specially inviting peers to compete in fuel consumption. The winner will have a free trial of Great Wall heavy-duty trucks for one year.
