Another powerful new force in car manufacturing has entered the field of new energy commercial vehicles. Recently, Jiangsu Speed Leopard Power Technology Co., Ltd. released its first electric heavy truck in Yulin, Shaanxi Province - Speed Leopard Black King Kong, the company is a high-tech enterprise founded by Tsinghua University Automotive Engineering Department graduates, and former executives of the German Continental Group, and the company has obtained tens of millions of yuan of strategic financing invested by Lei Jun's Shunwei Capital and Sequoia China Seed Fund.
The energy consumption of the third-generation intelligent electric heavy truck has been greatly reduced
For a long time, mileage is the biggest bottleneck restricting the development of electric heavy trucks, under the current level of technology, one of the solutions is to increase the battery, the disadvantage is that the cost and weight will increase, which is not a desirable way for operating vehicles. Another solution is what Subao Technology is doing - reducing vehicle energy consumption through technological upgrades of vehicle software and hardware.
In view of the current "oil to electricity" electric truck short battery life, battery weight resulting in transportation loss of tons, winter battery life halved, battery back safety and many other pain points, through the full-stack self-developed distributed electric drive axle, 800V high-voltage power domain motherboard, intelligent chassis domain control, and integrated thermal management and other core technologies, the vehicle energy consumption is reduced by 30% compared with traditional new energy heavy trucks, and the energy consumption cost per kilometer is reduced to 1 yuan.
It has intelligent upgrades to effectively solve the problem of high power consumption at low temperatures
Software-defined electric heavy trucks are the proposition of Subao Technology, and the previous new energy heavy trucks use distributed electronic and electrical architecture, which cannot meet the intelligent needs of vehicles. The innovative integrated chassis domain control of the Super Leopard Black King Kong significantly improves kinetic energy recovery and expands intelligent functions such as autonomous driving.
In the first coal transport line test, the comprehensive energy consumption of the speed leopard black diamond is 124 kilowatt-hours under normal working conditions, and after only one week of scenario learning and software iteration, the energy consumption is reduced to 118 kilowatts per 100 kilometers under the same working conditions, and the cruising range of the speed leopard black diamond can reach about 300 kilometers under the actual road conditions of the standard load and the next road.
At the same time, the design of the integrated thermal management system of the whole vehicle solves the problem of excessive power consumption of electric vehicles in extremely cold weather, and the energy consumption of 100 kilometers can be basically the same as that of spring and autumn at an ambient temperature of 0 °C, and the energy consumption of 100 kilometers is only 15 kilowatt hours higher than that of spring and autumn after cold start at an ambient temperature of -30 °C.
The battery is charged and replaced at the bottom, and it only takes 36 minutes to replenish the battery
Compared with the traditional back-mounted design, on the one hand, it reduces the center of gravity of the vehicle and makes the driving more stable, while retaining the space for the cab to move backward after collision and improving the safety of drivers and passengers. In addition, the wheelbase of the bottom-mounted battery is only 3600mm, and the minimum turning radius is 8.6m, which is more flexible than the general pure electric heavy truck.
The Leopard adopts an integrated charging and swapping energy supplement scheme, and is equipped with a quasi-900V SiC high-voltage platform, which can be charged from 20% to 80% in 36 minutes using the fast charging pile. With the quasi-900V platform, Super Leopard Technology also reserves a 2.2C charging rate solution, which can be fully charged in only 16 minutes under megawatt-level supercharging, which is comparable to the refueling time.
It is more dynamic and reliable, and is suitable for heavy-duty conditions
The speed leopard black diamond adopts a distributed electric drive axle system, the drive axle is a self-developed through-type highly integrated electric drive axle, a three-motor double-axle architecture, relying on an all-in-one main drive motor controller to achieve time-sharing drive, the vehicle has a continuous power of 540 horsepower, a maximum power of 1175 horsepower, and it only takes 24 seconds to accelerate from 0 to 80 kilometers per hour under a full load of 49 tons, while the general fuel heavy truck has a stronger climbing ability within 60 seconds.
Through the distributed electric drive axle and time-sharing control algorithm, the vehicle realizes the precise control of power output, and improves the power and transmission efficiency. The through-type highly-integrated electric drive axle uses a more reliable round wire motor and a mixed oil-water cooling solution, with a design life of 1.2 million kilometers. In the future, Subao Technology also plans 10T-level, 13T-level, and 16T-level electric drive axle products, with application scenarios covering long-distance trunk lines, express delivery, wharf traction, urban engineering, sanitation and municipal, etc., to achieve multi-scenario adaptation through modular combination.
There is no doubt that whether it is the perspective of the development of green transportation and alternative energy at the national level, or the current situation of the industry with high oil prices and high involution in the transportation industry, new energy commercial vehicles are undoubtedly a clear development direction in the future, but unlike fuel heavy trucks, new energy commercial vehicles are far from reaching their ultimate form, and it is expected that more and more companies like Super Leopard Technology will inject new development ideas and vitality into the industry.