Abstract

With the rapid development of automobile electronic industry, more and more electronic control technologies are replacing the traditional mechanical devices of automobile. Modern automobile chassis control technology is developing towards the direction of wire control. The wire control system will replace the traditional control system which mainly consists of hydraulic, pneumatic and mechanical systems, so as to realize the integration with other systems. In this paper, the development status of vehicle by wire control technology in various countries, as well as the composition, working principle and control method of vehicle by wire steering system and brake by wire system are summarized, the key technologies affecting the development of vehicle by wire control are summarized, and the application of by wire control technology in the future automotive field is prospected.

Highlights

  • With the rapid development of automobile electronic industry, more and more electronic control technologies are replacing the traditional mechanical devices of automobile

  • The controller can filter the unnecessary vibration according to the driving intention, vehicle condition and road condition, and send torque signal to the steering wheel assembly in real time to generate steering wheel torque to provide the driver with the corresponding road sense information

  • When a part of the wire control system fails or fails, the redundancy part can guarantee the normal work of the system

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Summary

Development status of wire control automobile

In the 1950s and 1960s, many R&D companies transformed the original mechanical connection into the control signal between steering wheel and steering wheel, and realized the early prototype of steering system by wire. Chrysler has developed an electric-driven concept car, the R129, which eliminates the steering wheel, accelerator pedals and brake pedals and USES full joystick control, enabling drive-by-wire technology. In 2019, global chassis system integrator schaeffler and hunan xiangjiang new area management committee formally signed an investment agreement in changsha Technologies and products such as Space Drive technology, 90 intelligent drive-by steering system and Mover platform were introduced into China, and they were verified on Schaeffler Mover, which was launched in Shanghai auto show in the same year, as shown in figure 2. The line control system MK C1 developed and produced by continental group can achieve efficient braking energy recovery and will be mass-produced in China by the end of this year

Application of automotive chassis wire control technology
Line steering system layout
Wire steering control
Braking by wire
Advantages of braking by wire
Key technology of wire control chassis
Sensor technology
Motor and controller technology
Fault-tolerant control techniques
Automobile bus technology
Development trend of wire control technology
Conclusion
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