Steering-by-wire system based on hydraulic inerter

A wire-controlled steering and inertial container technology, applied in steering mechanisms, steering levers, electric steering mechanisms, etc., can solve the problems of reduced driving comfort, shaking of the driver's hand steering wheel, inability to turn, etc., to improve steering stability and efficiency. Driving safety, making up for the lack of mass impedance, and optimizing the effect of design

Active Publication Date: 2017-12-12
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are the following disadvantages in using a motor as a road sensor simulation device: 1. The mechanical connection between the road sensor motor and the steering column is likely to cause impact on the driver's hand and shake th

Method used

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  • Steering-by-wire system based on hydraulic inerter
  • Steering-by-wire system based on hydraulic inerter
  • Steering-by-wire system based on hydraulic inerter

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0025] Such as figure 2 As shown, a steering-by-wire system based on a hydraulic inerter is characterized in that it includes a steering wheel 8, an upper steering column 9, a rack and pinion transmission mechanism 20, a hydraulic inerter 12, a return motor 13, a front Bridge, steering motor 17, ECU control unit 18, angle sensor 19;

[0026] The steering wheel 8 is connected to the rack and pinion transmission mechanism 20 through the upper steering column 9, the rack and pinion transmission mechanism 20 is connected to the hydraulic inerter 12, the hydraulic inerter 12 is connected to the centering motor 13, and the rack and pinion transmission The mechanism 20 is also equipped with a rotation angle sensor 19; the steering motor 17 is connected with the front axle;

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PUM

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Abstract

The invention provides a steering-by-wire system based on a hydraulic inerter. The steering-by-wire system comprises a steering wheel, an upper steering column, a gear rack transmission mechanism, the hydraulic inerter, an aligning motor, a front axle, a steering motor, an ECU, an angle sensor and the like. Magnetorheological fluid is integrated to the hydraulic inerter, the viscosity of the magnetorheological fluid is changed by changing the magnetic induction intensity of the periphery of the hydraulic inerter, and accordingly, the purpose of adjusting the damping force of the hydraulic inerter is achieved. The road feel of steering inertia of the steering wheel is simulated through the dynamic inertial effect of the hydraulic inerter, and the steering assistance and feedback force are optimally designed through the adjustable damp characteristic of the magnetorheological fluid in the hydraulic inerter. Compared with traditional steering-by-wire devices, through the steering-by-wire system, the road simulation function of steering wheel is achieved better, and the control stability and driving safety of a vehicle are improved.

Description

technical field [0001] The invention relates to the technical field of automobile steering by wire, in particular to a steering by wire system based on a hydraulic inerter. Background technique [0002] The function of the vehicle steering system is to steer the steering wheels in accordance with the driver's steering commands to obtain overall directional control of the vehicle. The steer-by-wire technology cancels the rigid connection between the steering column and the steering wheels, such as the steering column and the intermediate shaft. Therefore, the steer-by-wire system needs a specific device to realize the simulation of the steering wheel's road feel and the ability to automatically return to the center. [0003] Road feel is the feedback torque from the steering wheel felt by the driver during the driving process of the vehicle, which is equal in magnitude and opposite in direction to the hand torque applied to the steering wheel by the driver. The road feeling ...

Claims

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Application Information

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IPC IPC(8): B62D5/04B62D6/00B62D101/00B62D113/00
Inventor 杨晓峰李洪昌杨艺刘昌宁赵文涛徐旭
Owner JIANGSU UNIV
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