On September 26, the 2020 Beijing International Auto Show arrived as scheduled, and many blockbuster new cars were unveiled together, which was eye-catching. From the perspective of exhibitors, in addition to many traditional car companies and emerging car companies appearing together, technology giant Huawei also made an appearance on the stage. Gasgoo found through visits that on the first day of the exhibition, Huawei's booth was always busy and bustling with people coming from GAC, Volvo, Chery Co., Ltd., Chery Commercial Vehicles, BYD, Dongfeng Honda, GAC Honda, GAC Toyota, SAIC Maxus, SAIC Passenger Cars, SAIC Representatives from many car companies such as GM-Wuling, NIO, BAIC, and Beiqi Foton also appeared at Huawei's booth for interactive exchanges.
It is understood that Huawei exhibited many important products in the smart electric field this time, including electric drive systems, on-board chargers, battery management systems and under-car DC fast charging modules.
Among them, the all-in-one electric drive system DriveONE attracted many exhibitors to watch. According to technicians at Huawei's booth, this is the industry's first hyper-converged power domain solution. Through the high integration of seven major components: motor, MCU, PDU, OBC, DCDC, reducer, and BCU, the system not only achieves mechanical components and power The deep integration of components also brings intelligence into the electric drive system, achieving unified end-cloud collaboration and control.
Specifically, the system mainly has the following four highlights:
Integrated minimalism. This system achieves simple development, simple adaptation, simple layout, and simple evolution. Specifically, the seven-in-one powertrain can help simplify the layout of the vehicle's power domain, saving 220mm in the Z direction, reducing the number of mounting brackets by 2, shortening the wiring harness by 5m, reducing the number of connectors by 3, and reducing the number of water pipes and pipes by 2. . In addition, through self-developed AutoSar, the system achieves collaborative development of devices and clouds, significantly improving development efficiency.
Safe and reliable. The system ensures zero charging accidents through four verifications of vehicle, pile, cloud and network. It ensures all charging, electricity and vehicle use through a complete charging system with overall safety visibility, battery visibility, electric drive visibility and charging visibility. security while providing traceable electronic certificates. Not only that, Huawei adopts innovative functional safety design to effectively improve the security of the system through the integration from modules to systems and from scenarios to solutions.
Excellent experience. As the industry's first high-voltage all-in-one powertrain, this system can meet the 2C fast charging experience and have a range of 200km after 10 minutes of charging. Compared with previous solutions, this system has higher efficiency (NEDC efficiency 89), higher accuracy (SOC detection accuracy ±3), less energy consumption (motor waste heat recovery without PTC), and endurance increased by 80km. At the same time, it is also higher density, with the power density reaching 2.1kw/kg. In addition, the system has excellent performance under extreme working conditions (continuous high speed of 180km/h, repeated acceleration from 0-100km/h 20 times), and also achieves low noise (NVH?78?dB) and low radiation (EMC?CLASS?4) , creating a quiet and comfortable experience.
AI Cloud Intelligence. Through the electric digital development platform-PDDP, with the support of AI & big data, the development efficiency of the system has been improved by 10%. In addition, judging from the OTA upgrade function that current car owners are very concerned about, the system adopts a centralized flat OTA architecture to ensure performance improvement while simplifying the path and reducing version complexity, shortening the upgrade time of 10 minutes in the industry to 30 seconds, and can be used in the future. Achieve one-click extremely fast upgrade. On this basis, the system also adopts three-layer and multi-level strict control to comprehensively protect the security of OTA upgrades and provide customers with a high-quality experience.
In Gasgoo’s view, Huawei’s all-in-one electric drive system is indeed a higher-dimensional improvement compared to existing solutions in the industry. For example, the current NEDC efficiency in the industry generally only reaches 86, and the industry level is expected to increase to 88 in the next two years. The solution released by Huawei this time can reach 89. In addition, the compact and lightweight structural design enables Huawei to truly lead the industry in terms of mass power density and volume power density.
The quality of its 120kW all-in-one electric drive assembly is controlled at 65kG. Excluding the 8kG OBC weight, the power density reaches 2.1kW/kG. Compared with other competing products with the same power or close to the power in the industry, it also has considerable advantages. .
It is understood that Huawei’s all-in-one electric drive system DriveONE was officially released in Beijing on September 25. At the press conference, it was widely recognized by industry experts and vehicle customers for its hard-core performance.
Of course, it needs to be pointed out that in the field of smart electric, Huawei’s technical strength goes far beyond this. Zhou Taoyuan, President of Huawei's Digital Energy Product Line, previously stated that Huawei will integrate and innovate the electric drive control of electric vehicles by integrating more than 30 years of power electronics technology accumulation in the ICT field with leading digital technologies such as 5G, big data, cloud computing, and artificial intelligence. , battery safety, and three-power failure prediction and other fields, we will create innovative intelligent electric solutions with "minimalist integration, safety and reliability, excellent experience, and AI cloud intelligence" to help car companies build good cars and accelerate the electrification development of the automobile industry.
So, in the smart electric field, what kind of layout will Huawei have in the future? What kind of innovative products will it bring to the industry? Gasgoo will continue to pay attention to the report.
This article comes from the author of Autohome Chejiahao and does not represent the views and positions of Autohome.