Steering system capable of switching various steering modes

A steering system and steering mode technology, which is applied in the field of steering-by-wire and EPS technology, can solve the problems of low control accuracy, high requirements for high-torque motor drive equipment, and difficulty in accurately controlling the steering angle, so as to improve the steering control accuracy. Effect

Inactive Publication Date: 2016-12-07
JILIN UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

Its control precision is low, and it is difficult to accurately control the steering angle; and the high-torque motor has high requirements on the driving equipment

Method used

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  • Steering system capable of switching various steering modes
  • Steering system capable of switching various steering modes
  • Steering system capable of switching various steering modes

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Effect test

Embodiment Construction

[0023] A steering system that can switch between multiple steering modes, such as figure 1 and figure 2 As shown, it includes left steering wheel 1, steering gear 2, right steering wheel 3, angle and torque sensor I4, power transmission gear set 5, clutch 6, EPS motor 7, EPS controller 8, angle and torque sensor II9, angle and torque sensor Torque sensor III 12, steering wheel 13, servo motor 14, steering column 16, servo motor controller 17 and vehicle control system 20;

[0024] The steering wheel 13 is connected to one end of the steering column 16; the steering column 16 is sequentially provided with an angle and torque sensor III 12, a servo motor 14, an angle and torque sensor II 9, a clutch 6, a power transmission gear set 5, an angle And torque sensor I4 and steering gear 2;

[0025] The signal output ends of the angle and torque sensor I4 are respectively connected to the servo motor controller 17 through the angle sensor signal line I18 and the torque sensor signa...

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PUM

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Abstract

The invention provides a steering system capable of switching various steering modes and belongs to the technical field of electric automobile driving. The steering system comprises a left steering wheel, a steering gear, a right steering wheel, an angle and torque sensor I, a power transmission gear set, a clutch, an EPS motor, an EPS controller, an angle and torque sensor II, an angle and torque sensor III, a steering wheel, a servo motor, a steering column, a servo motor controller and an automobile control system. Through deep analysis of the requirements for the steering system of an unmanned automobile, the steer-by-wire technology is combined with the EPS technology, an automatic / manual steering function is achieved, and the control accuracy of the steering angle in the automatic driving process is guaranteed; and in the manual steering mode, the manual steering mode based on steer-by-wire or mechanical steering can be selected according to the requirements of a driver.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle driving, and in particular relates to a steering-by-wire and EPS technology. Background technique [0002] The steering system of a car can control the driving direction of the car according to the driver's intention, and the steering system of a car plays a vital role in driving safety. The hydraulic power steering system with traditional mechanical structure is very mature, providing the driver with good steering convenience. However, the hydraulic power of the traditional mechanical hydraulic power steering system must rely on the engine to provide power. If it is used in an electric vehicle, a hydraulic drive device must be installed to increase the complexity; therefore, for electric vehicles, the EPS technology This problem has been solved to a certain extent; and the traditional steering system mostly adopts the rack and pinion steering gear structure, which not only transmits the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04G05D1/00
CPCB62D5/046B62D5/043G05D1/0061
Inventor 金立生谢宪毅王发继高琳琳李科勇陈梅管信姬生远徐俊
Owner JILIN UNIV
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