Multi-mode Automotive Steering-by-Wire System

Abstract

The invention discloses a multi-mode automobile steering-by-wire system and aims to solve the problems that in a conventional steering-by-wire technology, the steering power source is simplex, the security is poor when a steering system is subject to a power failure, the steering road feeling is not vivid enough and the steering accuracy is low. The multi-mode automobile steering-by-wire system comprises a steering wheel unit (A), a steering power unit (B), an electric control unit (C) and a mode switching unit (D), wherein the electric control unit (C) comprises an electronic control unit (60), a motor controller (61) and a solenoid valve controller (62); and the electronic control unit (60) is in wired connection with the motor controller (61) and the solenoid valve controller (62); and the steering wheel unit (A) is in pipeline connection with a steering power cylinder (42) and the steering power unit (B) through a second two-position three-way solenoid valve (28) and a second two-position three-way solenoid valve (32), and the electric control unit (C) is in wired connection with the steering wheel unit (A), the steering power unit (B) and the mode switching unit (D).

Description

technical field [0001] The invention creates a steering device belonging to the technical field of automobile steering systems, and more specifically, the invention relates to a multi-mode automobile steering system by wire. Background technique [0002] The steering system of the car is one of the main components of the car driving system. The function of the car steering system is to enable the car to control the driving direction according to the driver's wishes while the car is running. Automobile steering system can be divided into mechanical steering system and power steering system according to the different steering energy. The mechanical steering system uses the driver's physical strength as the entire power source for steering. Due to its heavy load on the driver, it is easy to reduce the driver's comfort, and its mechanical parts are more complicated, so it is gradually being used. other steering systems instead. [0003] The power steering system mainly means t...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the problems in the existing steering-by-wire technology that the steering power source is single, the steering system has poor safety when power failure occurs, the simulation of the steering road feeling is not realistic enough, and the steering accuracy is not high, and the electric power steering The system is combined with the electric motor power steering system to provide an automotive steer-by-wire system with multi-mode

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