TU-TESL

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In the wave of digital reconstruction, the definition of car is being rewritten. People begin to hope to get a higher level of comfort, safety, efficiency and consumer electronics functions in their cars. However, with the gradual improvement of the electronic level of the vehicle, electronic control unit (ECU) occupies the whole vehicle, from anti lock braking system, four-wheel drive system, electronic automatic transmission, active suspension system, air bag system, to body safety, network, entertainment, sensor control system, etc. According to the statistics of strategy analytics, the number of ECUs in all levels of vehicles is increasing year by year. Although the average number of current vehicles is about 25 ECUs, some high-end models have exceeded 100. The explosive growth of automotive electronic software has brought great challenges to the electronic and electrical architecture. How to ensure the optimization of data processing and network security in the increasingly complex circuit has become a difficult problem, and using one or several "brains" to control the ECU and sensors of the whole vehicle is gradually becoming the recognized future of automotive electronic and electrical architecture. However, there is still a long transition period from parts oriented today to system oriented future. During this period, tier 1 enterprises led by Bosch and continental think that domain based DCU (domain controller) integration architecture is the best solution at present. In short, the domain controller can divide the functions of automobile electronic parts into several fields, such as power transmission domain, body electronic domain, auxiliary driving domain, etc., and then use the multi-core CPU / GPU chip with powerful processing power to relatively centralized control domain which originally belongs to most of the functions of each ECU, so as to replace the traditional distributed architecture. Take the cockpit electronics as an example. In recent years, there are more and more displays in the car. From the central touch screen, to the LCD + touch screen, to the 7-8 different displays in today's high-end cars, how to manage the information on different displays and display the most important information in the most visible place is the mission of the birth of cockpit domain controller. At present, the cockpit domain controller is no longer limited to the realization of multi screen interconnection, but also extended to HUD (head up display), air conditioning control, rear-view mirror, human-computer interaction, DMS (driver monitoring system), T-box and OBU, etc. However, the emergence of domain controller will also bring some changes to the industry, enterprise organization and even business cooperation mode. Mr. Juergen Heim, vice president of continental body electronics business group in China recently, Mr. Juergen, vice president of continental body electronics business group in China Mr. Heim) said in an interview with the media that due to the high integration of the domain controller, it is necessary to intervene in the earlier stage of vehicle development in order to get better results; at the same time, these complex and high-performance computing units need a larger team of engineers to cooperate in the development, especially in the case of insisting on the separation of software and hardware, software companies, hardware companies and software companies are required The software departments of parts safety and vehicle enterprises, even the third-party software companies, will undoubtedly increase the difficulty of this research and development. Fortunately, "in the field of system integration, we have a very strong accumulation and precipitation," said Mr. Juergen Heim, vice president of continental automotive electronics business group in China. Whether it's hardware, security network protection, or software, Continental has corresponding product solutions, including but not limited to the augmented reality head-up display tailored to the Chinese market, hybrid v2x meeting different market requirements, Argus and elektrobit (EB), the subsidiary company escorting network security, and online new energy vehicle battery monitoring system And intelligent commercial vehicle networking ecosystem, etc. "Integration is our core. To make us better connected and present information, we also need to better integrate. In a reliable, safe, effective and efficient way, we need to do system integration with the right products, the right information solutions and the right architecture," Mr. haiyueming said. Based on this, Continental launched a new integrated body electronics platform (IIP) at this year's Frankfurt auto show to realize the simultaneous operation of multiple operating systems with different security requirements on one computer, supporting open-source operating systems including QNX, Linux, Android, etc. According to the introduction of Continental, IIP is a milestone in the transformation of electronic and electrical architecture. It transfers on-board electronic components from many independent control units to some high-performance computer platforms, which can highly match the existing product portfolio of Continental, and achieve high platform, expansibility, network security, vehicle regulation level quality, etc., so as to provide a platform for the future intelligent Internet connected vehicle in the cockpit Human computer interaction provides technical basis. Mr. Hua lanchao, head of instrument and human machine interface business unit of continental body electronics business group in China, said that "one of the great advantages of using IIP is that the whole human machine user interface can be very unified. It can drive six screens based on Qualcomm chip, and its functions are very complete at present, and it will be mass produced as soon as 2021". Continental body electronics business group instrument Mr. Hua lanchao, China head of table and human computer interface business division, said. At present, icas1, the first product of the high-performance computing unit of Continental, has achieved mass production, won the first customer ID. series, and put into use on id.3. In the future planning of continental group, the performance of EMC (electromagnetic compatibility) and MCU (micro control unit) will be further improved and added to the thermal management system in 2020-2021; in 2022-2023, the security, efficiency and cost will be enhanced to a greater extent, and the requirements of customers will be integrated to find the optimal market platform; finally, the highly integrated server architecture In this way, a highly integrated HPC high-performance computing unit can be realized across domains and connect to different domains, namely domain controller (MDC). Domain controller is accelerating to come. Not only continental group, but also Bosch, Visteon, anbofu and other enterprises plan accordingly. As early as 2017, anbofu became the first supplier to focus all kinds of functions on the central domain architecture on Audi A8. It gave up the ECU that all driving assistance systems are separated from each other and concentrated in the same place - Central Driving aid control unit. However, compared with the radical of anbofu, model 3 is more likely to directly subvert the attributes of the existing mechanical products of the automobile. In this model, the whole electronic and electrical architecture has only three modules: CCM (central calculation module), BCM LH (left body control module), BCM Rh (right body control module). Among them, CCM integrates ADAS (driving assistance system) and IVI (information and entertainment system); BCM LH and BCM RH are respectively responsible for the functions of body & Convention (body and convenience system), chassis and safety (chassis and safety system) and powertrain (part of power system). Direct cross domain control, to achieve regional control, that is, multi domain control. No matter the stability and stability of the mainland and Bosch group, or the radicalization like anbofu and Tesla, are all the explorations for the future era of intelligent Internet connection. In this process, the control of product roadmap, performance, security and cost is different from each other. It's hard to say which way is better. But one thing is for sure, 2025 will be the recognized centralized industry When the architecture will arrive. In the future, with the gradual development of automotive electronic and electrical architecture to the direction of domain concentration, software capability will be the commanding point for many parties to seize, and it will also force tier 1 to expand to a broader system integration capability, rather than being limited to a specific field. In 2025, we may know what kind of competition will be.