Price of traditional wire harness inspection system in Beijing

On September 26th, 2020 China arrived as scheduled, and many heavy new cars appeared together, which attracted people's attention. From the perspective of exhibitors, in addition to the emergence of many traditional car companies and emerging car companies, the technology giant Huawei also made its debut. Through the visit, Gaspar found that the Huawei booth was always crowded with people on the first day of the exhibition. Representatives from GAC, Volvo, Chery, Chery Commercial Vehicle, BYD, Dongfeng Honda, Guangqi Honda, GAC Toyota, SAIC Chase, SAIC Passenger Car, SAIC-GM-Wuling, Weilai Automobile, BAIC and BAIC Futian also appeared at Huawei booth for interactive exchange.

It is understood that Huawei exhibited many heavy products in the field of smart electric, including electric drive system, car charger, battery management system and DC fast charging module under the car.

Among them, the integrated electric drive system DriveONE attracted many exhibitors to watch. According to Huawei booth technicians, this is the industry's first hyper-converged power domain solution. The system not only realizes the deep integration of mechanical components and power components, but also brings intelligence into the electric drive system through the high integration of seven components: motor, MCU, PDU, OBC, DCDC, reducer and BCU.

Specifically, the system has the following four highlights:

Fusion is minimal. The system is simple in development, adaptation, layout and evolution. Specifically, the 7-in 1 powertrain can help simplify the power domain layout of the vehicle, saving 220mm in the Z direction, reducing 2 mounting brackets, shortening the wiring harness by 5m, and reducing 3 connectors and 2 water pipes. In addition, through the self-developed AutoSar, the system realizes the end-cloud collaborative development, and the development efficiency is obviously improved.

Safe and reliable. The system has passed the four major inspections of vehicles, piles, clouds and nets, ensuring zero accidents in charging, and ensuring the safety of all charging, power consumption and vehicles through a complete charging system with safe overall visibility, battery visibility, electric drive visibility and charging visibility, and providing traceable electronic certificate. Moreover, Huawei adopts innovative functional safety design, which effectively improves the security of the system through the integration from module to system and from scenario to solution.

The experience is excellent. As the first high-voltage integrated powertrain in the industry, the system can meet the 2C fast charging experience, and the battery life is 200km after charging 10 minutes. Compared with the previous scheme, the system has higher efficiency (NEDC efficiency is 89%), higher accuracy (SOC detection accuracy is 3%), less energy consumption (no PTC motor waste heat recovery), and the endurance is improved by 80km. At the same time, it is also a higher density, and the power density can reach 2. 1kw/kg. In addition, the system has excellent performance and low noise under extreme working conditions (continuous high speed 180km/h, repeated acceleration of 0- 100km/h for 20 times). 78? DB) low radiation (EMC? Class? 4) Create a quiet and comfortable experience.

Ai Yunzhi, through the electrical digital development platform-PDDP, is in Ai&; With the blessing of big data, the system development efficiency is improved 10%. In addition, judging from the OTA upgrade function that car owners are very concerned about at present, the system adopts centralized flat OTA architecture, which simplifies the path and reduces the version complexity while ensuring the performance improvement, shortens the upgrade time of 10min in the industry to 30s, and can realize one-click rapid upgrade in the future. On this basis, the system also protects the security of OTA upgrade in an all-round way through three-tier and multi-level strict management and control, bringing customers a quality experience.

In Gaspar's view, Huawei's integrated electric drive system does have a higher dimension improvement than the existing solutions in the industry. For example, the current NEDC efficiency of the industry is generally only 86%, and the industry level is expected to increase to 88% in the next two years, and the solution released by Huawei this time can reach 89%. In addition, the compactness and lightweight of structural design make Huawei a veritable industry leader in terms of mass power density and volume power density. The mass of its 120kW integrated electric drive assembly is controlled at 65kG, and the power density reaches 2. 1kW/kG in addition to the weight of 8kG OBC. Compared with other competitors with the same strength and close strength in the industry, it also has considerable advantages.

It is understood that Huawei's all-electric drive system DriveONE was officially released in Beijing on September 25th. At the press conference, its hard core performance was widely recognized by industry experts and vehicle customers.

Of course, it should 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, said earlier that Huawei has integrated and innovated power electronics in the ICT field with leading digital technologies such as 5G, big data, cloud computing and artificial intelligence in electric vehicle electric drive control, battery safety and three-electricity fault prediction, and created an innovative intelligent electric solution with "minimal integration, safety and reliability, excellent experience and AI cloud intelligence" to help car companies build good cars and accelerate the development of the automobile industry.

So, what kind of layout will Huawei have in the field of smart electric in the future? What kind of innovative products will it bring to the industry? Gaspar will continue to pay attention to the report.

This article comes from car home, the author of the car manufacturer, and does not represent car home's position.