The penetration rate of wire-controlled chassis grows, how do the traditional parts and components enterprises to the intelligent transformation?

In the development of the automotive industry, the traditional chassis is limited by the mechanical connection form, the efficiency of its implementation of the control decision information will be limited. The emergence of the wire-controlled chassis can enhance the dynamic execution efficiency of the entire body for the known control decisions, a simple understanding of the driver and even the ECU decision-making control information through the sensor into an electrical signal, and ultimately through the circuitry of fast and efficient transmission to the implementation of the actuator.

The drive-by-wire chassis is the intersection of the two tracks of intelligence and electrification. The wire control chassis is the main control actuator of the self-driving car, which controls the self-driving car through controllers, power cables, signal cables, motors and other electrical components. Once there is insufficient power or failure of the electrical components, the entire wire control system will be out of control, which will lead to serious safety hazards. Because it involves the control of electrified parts and the control of self-driving cars, it is known as the intersection of intelligence and electrification and the "command center".

Currently, the industry has basically reached a **** knowledge, wire control executive end is a very important part of the automatic driving. The three major trends in the development of intelligent electric vehicles, in addition to safer and smarter, is that the electronic control architecture in the context of software-defined automobiles changes from distributed to centralized, and the wire-controlled chassis is one of the representatives of this trend.

With the evolution of autonomous driving technology, from the already widely used L2 level to L3 level and even L5 level autonomous driving, the redundancy and safety requirements of the technology are getting higher and higher, and at the same time, the wire-control chassis also puts forward higher requirements.

As the control unit of an autonomous driving vehicle, the wire-control chassis includes wire-control steering, wire-control braking, wire-control gearshift, wire-control throttle, and wire-control suspension, of which steering and braking are the most core products facing the direction of the execution end of the autonomous driving, and the wire-control braking has the highest technological difficulty, while wire-control throttle, wire-control gearshift, and wire-control air suspension are relatively mature in terms of technology, but the most critical steering and braking system is currently applicable to the L4-level autonomous driving or above. However, the most critical steering and braking systems are currently less stable mass-produced products suitable for automated driving above L4 level.

Currently the world's leading suppliers of wire-controlled chassis components - Bosch, ZF, Continental and other multinationals - have been researching and developing since the late 1990s, and have a wealth of technical accumulation and supply experience in the field of chassis control. As a core component of self-driving cars, the wire-controlled chassis integrates the capabilities of software, hardware, and machinery, and has a high technical threshold.

Compared with enterprises in developed countries, there is still a certain gap in domestic wire-controlled chassis technology and products. On the one hand, although there have been a small number of independent research and development enterprises, but overall technology and products are still in the cultivation period, but also unable to compete with the multinational technology and products. One of the reasons is that the domestic automobile core parts have long been dependent on imports, and the independent innovation ability is weak. On the other hand, the wire-controlled chassis, as an important component related to the safety of automatic driving, has high requirements for technical performance, process level, as well as algorithms and software, which is an urgent problem to be solved.

But it is gratifying to see that with the rapid progress of domestic automatic driving technology in recent years, the driving force for the evolution of wire-control chassis technology is also increasing. At the same time, the increasing number of domestic automatic driving mass production models, but also for the domestic related parts and components enterprises line control chassis independent research and development has brought great opportunities. The breakthrough of independent development of wire-control chassis technology is the top priority for the change of automotive intelligence and electrification.

On June 5 this year, Shanghai Nason Automotive Electronics Co., Ltd. released three independently developed wire control chassis products, which became one of the latest independent innovation technology achievements in the domestic parts and components industry to support autonomous driving. According to Tao Zhe, chairman of Nason Electronics, the Nason NBooster + ESC (wire control system + body electronic stability system) redundant wire-control braking solution launched this time has power redundancy, communication redundancy, controller redundancy, actuator redundancy, wheel speed redundancy and parking redundancy of six braking redundancy, which can fully satisfy different scenarios of automatic driving such as L2 level of hand-off assistance, L3 level to L5 level of automatic driving and fully automatic parking, and so on. parking and other automatic driving applications in different scenarios.

At present, we can see that Nason as the representative of the Chinese brand parts and components enterprises as well as some of the technology enterprises are in the layout of the wire control chassis and the surrounding supporting technology, but in the industrial system of the overall aspects of China's wire control chassis there is still a certain gap, there is still a long way to go.

In the future, under the continuous regulation of the market and policy, smart cars will continue to ferment in the market. According to the speculation of the Ministry of Industry and Information Technology, China's automobile production in 2025 will reach about 35 million, and according to the National Development and Reform Commission's projected 2025 China's smart car production will also reach about 28 million. It is certain that the penetration rate of the whole vehicle wire control chassis will show a geometric growth trend.

As a core component of intelligent vehicles, the technical development direction of the wire-controlled chassis, and how traditional parts and components enterprises carry out the transformation, is the hot spot of the industry's attention. The 2021 China Automotive Supply Chain Conference, which will be held in Chongqing on October 15-16, has set up a forum on the theme of "new development of wire-controlled chassis and traditional parts and components", which will focus on the above content.

The forum will be moderated by Zhou Jinguang, CTO of CACC Technology Co., Ltd, who will speak on the topic of "Challenges of Intelligent Vehicle Chassis Technology and R&D Practices of Advanced Braking System". Ltd. and Liu Zhaoyong, General Manager of Globo Technology Co., Ltd. will address the topics of "Complete Solutions for Smart Vehicle Chassis with Wire Control" and "Smart Vehicle Honeycomb Intelligent Steering System (Jiangsu) Co., Ltd. will speak on the topic of "Future Trends of Passenger Vehicle Steering Systems", and Panjin, General Manager of Jiangsu Yilong Mechatronics Technology Co. Pan Jin's speech topic is "line control chassis magnetic valve key components development and industrialization". Meanwhile, Sui Qiaomei, General Manager of Intelligent Chassis Division of Lianchuang Automotive Electronics Co., Ltd, and Xu Guodong, Technical Director of Shanghai Tongmai Automotive Technology Co. In addition, the above guests will also participate in the roundtable dialog, around the intelligent chassis technology change challenges and industry synergistic development, in-depth discussion.

On October 16th, come to the 2021 China Automotive Supply Chain Conference, and pay attention to the theme forum of "New Development of Wire Chassis and Traditional Components", which will be full of dry goods, and surely make industry insiders live up to their expectations.