Tramway News: This morning, the "2021 Huawei Intelligent Vehicle Solution Ecological Forum" was held, and Wan Lei, vice chairman of the Star Flash Alliance, Huawei Fellow, and Director of the HUAWEI Smart Vehicle Solution BU Policy and Standard Patent Department, introduced the new generation of wireless short-range communication technology "Star Flash".
Wan Lei said that the trend of wireless vehicle communication is the trend, and the new generation of wireless short-range communication technology "Star Flash" has comprehensively surpassed in the dimensions of low latency, high reliability, fine synchronization, and multiple concurrency. The Star Alliance is committed to working with industry partners to promote cross-industry unified standards, promote technological innovation, and jointly build an industrial ecology.
"Star Flash Technology" is known as redefining on-board wireless short-range communication, compared with traditional cars, the wiring harness of the vehicle is complex, making the vehicle's circuit complex, maintenance and upgrade replacement inconvenient. Compared with Bluetooth and WiFi wireless connection, Star Flash technology has the advantages of ultra-low latency, ultra-high reliability, and accurate synchronization.
For vehicles, some of the signal transmission involving driving and safety aspects, the highest priority for transmission requirements is reliable, real-time, and traditional wiring harnesses have unparalleled advantages. Such as audio signal transmission, car machine and mobile equipment wireless screen projection, outside the car multi-camera screen transmission, wireless BMS battery management system, etc., the use of wireless transmission has greater advantages.
The top applications of Star Flash technology in the field of smart cars include: immersive in-vehicle sound field & noise reduction, 360 panoramic surround view, wireless interactive screen projection, wireless BMS (battery management system), and wireless atmosphere lights in the car.
In order to promote the landing and application of this technology, on September 22, 2020, the Star Flash Alliance was established, and the positioning of the alliance is to promote the innovation and industrial ecology of new wireless short-range communication technology, carry the application of smart cars, smart homes, intelligent terminal turbulence and intelligent manufacturing, and ultimately promote the internationalization of standards and industries. At present, there are more than 140 member units of the "Star Flash Alliance", including China Automobile Center, Changan Automobile, Great Wall, Geely, SAIC Motor, Dongfeng and other car companies, covering the upstream and downstream of the industrial chain.
According to reports, the Star Flash Alliance will launch the standard Star Flash 1.0 at the end of 2021, the test instrument on H1 in 2022, the chip in H2 in 2022, and the terminal in 2023.
At this stage, the connection between the various electronic components on the car is the wiring harness, the automotive wiring harness is the network body of the automotive circuit, which organically connects the central control components with the automotive control unit, the electrical and electronic execution unit, and the electrical device to form a complete automotive electrical electronic control system. According to the prospectus of Huguang Co., Ltd., a domestic automotive wiring harness supplier, the length of the current bicycle wiring harness is about 1.5-2km, the value of the fuel vehicle bicycle wiring harness is about 2000-2500 yuan, and the value of the pure electric vehicle bicycle wiring harness is about 3500-4000 yuan.
With the promotion of new energy vehicles, the electrification and intelligence of automobiles will increase the demand for automotive wiring harnesses. From the perspective of electrification, new energy vehicles mainly reduce the engine wiring harness and increase the high-voltage wiring harness. Taking the German A-class sedan as an example, the value of the traditional fuel vehicle bicycle wiring harness is more than 2000 yuan, of which the engine wiring harness is about 200 yuan, while the value of the high-voltage wiring harness of pure electric vehicles is about 1500 yuan, so the value of the single wiring harness of pure electric vehicles is 1300 yuan higher than that of traditional cars. With the increase of the fast charging speed of new energy vehicles, the penetration rate of high-voltage wiring harnesses with large wire diameters will be expected to increase, driving the value of bicycles upwards.
From the perspective of intelligence, intelligence will increase the amount of bicycle electronic devices. The general bicycle car wiring harness is about 1.5-2km, and according to Aptiv's estimates, the unoptimized L3 and L4 automatic driving systems need to increase the wiring harness by about 2km, and the length of the harness is more than doubled. In the future, the richness of functions such as autonomous driving and entertainment will be an important driver of the growth of demand for automotive wiring harnesses.
The star flash technology announced by Huawei today is a wireless short-range communication technology, and the electronic components in the car can not completely rely on the wiring harness connection. Once the technology is officially applied, it will greatly reduce the use of automotive wiring harnesses, which can not only reduce the manufacturing cost of automobiles, but also subvert many inherent parts of automobiles.