Author(s)

Xu Ke

Corresponding Author

Xu Ke

ABSTRACT

The fundamental difference among Steer by wire and other steering systems lies in that it cancelled the mechanical or hydraulic connecting device between the steering wheel and the turning wheel, thus it breaks through fixed transmission ratio limit of the meshing gear, and reduces the total clearance among the inertial, friction and transmission parts of the system, and finally improves the response speed and response accuracy of the system. Domestic research mainly focuses on algorithms related to Steer-by-Wire system, such as the algorithms of return torque and stability of the steering wheel. Domestic research doesn’t form in-depth research of the communication protocol used in the system. And, FlexRay is through accurate and high speed communication network protocol to meet the requirements of SBW system when there are fault tolerance and time uncertainty of the message transmission, thus to improve the controllability, stability and safety of car handling. Therefore, the research of the SBW system’s communication network is a research in a new field, and it is also crucial to improve the vehicle performance and gradually makes it more intelligent.

KEYWORDS

Vehicles, control system, automatic navigation aircraft, domestic