Manual/automatic switching connector for electric steering system

Abstract

The invention discloses a manual / automatic switching connector for an electric steering system. A steering wheel isolation mechanism is formed by connecting an upper gear and a lower cam fixedly; a motor shaft cam and a motor arranged on a fixing rack are in drive connection; the lower end of a steering wheel shaft passes through a fixing bracket to be inserted on the fixing rack at the bottom of the shaft; the steering wheel isolation mechanism and the motor shaft cam are arranged on the fixing rack at the bottom of the shaft; the steering wheel shaft is provided with an outer gear meshed with the upper gear; an outer ring of the lower cam is provided with teeth meshed with an annular gear of the steering shaft; and the steering wheel shaft sequentially passes through the outer gear on the steering wheel, the upper gear, the lower cam and the annular gear of the steering shaft to achieve one-way transmission of manual torque. The manual / automatic switching connector for the electric steering system can isolate the steering wheel in an auxiliary driving process, can timely switch the mode in manual intervention, and achieves basic power-assisted steering.

Description

technical field [0001] The invention relates to a manual / automatic switching connector used in an electric steering system, belonging to the technical field of control. Background technique [0002] The electric power steering system has been widely used in automobiles due to the advantages of few parts, convenient arrangement and light weight. Power steering has become standard in some cars, with about half of the world's cars using power steering. With the development of automobile auxiliary driving technology, higher requirements are put forward for the safety, economy, power and mobility of electric power steering technology. [0003] During the driving process, the next step for the driver to control the rotation angle and direction of the steering wheel is often not determined by the rotation angle of the steering wheel, but by the orientation of the car and the angle of the body. For an electric steering system that integrates assisted driving and manual driving, th...

AI Technical Summary

Problems solved by technology

The follow-up movement of the steering wheel is not necessary, and it will cause untimely control during manual intervention, and the steering resistance of the steering wheel will interfere with the power control, which will lead to safety problems

[0004] The difficulty in switching between the traditional electric power steering system assisted steering control and the combined control of manual driving has always been a problem in this field

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