Automatic driving drive-by-wire telescopic mechanical redundancy type steering column

An automatic driving, steering column technology, applied in electric steering mechanism, power steering mechanism, steering mechanism, etc., can solve the problem of lack of steering system, lack of oversteer, etc., to achieve spacious operation space, increase flexibility, reduce extrusion Effect

Active Publication Date: 2020-12-11
开沃新能源汽车集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, autonomous driving vehicles lack a steering system that combines the advantages of SBW and EPS, and there is a lack of effective oversteer between automatic driving and manual takeover

Method used

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  • Automatic driving drive-by-wire telescopic mechanical redundancy type steering column
  • Automatic driving drive-by-wire telescopic mechanical redundancy type steering column
  • Automatic driving drive-by-wire telescopic mechanical redundancy type steering column

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] figure 1 It is the position of the autopilot-by-wire telescopic mechanical redundant steering column in the autopilot-by-wire telescopic steering system of the present invention. The self-driving control-by-wire retractable steering system includes a foldable steering wheel 1, a corner torque sensor 2, a retractable mechanical redundant steering column 3, a reduction mechanism 4, a rack and pinion steering gear 5, an electromagnetic clutch 6, a booster motor 7, and The electronic control unit 8, the retractable mechanically redundant steering column 3 and the foldable steering wheel 1 are connected through threads, and the rotating shafts of the retractable mechanically redundant steering column 3 and the reduction mechanism 4 are hinged through pivot pins. The retractable mechanically redundant steering column 3 receives instructions from the electronic contro...

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PUM

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Abstract

The invention discloses an automatic driving drive-by-wire telescopic mechanical redundancy type steering column. The steering column comprises a steering wheel connecting thread, a steering wheel pitch angle adjusting mechanism, a bearing, a telescopic column, a clutch mechanism, a telescopic sleeve, a steering lower shaft, a steering lower shaft hinge joint hinged to the steering lower shaft, atelescopic thrust motor, a telescopic sleeve sealing thread, a telescopic sleeve lower connecting piece, a bearing fixing piece, a steering wheel pitch angle transmission gear, a steering wheel pitchangle adjusting motor, a telescopic column transmission gear and a steering wheel rotation angle adjusting motor. The automatic driving drive-by-wire telescopic mechanical redundancy type steering column is electrically telescopic, the getting-on and getting-off convenience can be improved for a safety officer or a driver, meanwhile, the flexibility of switching between the manned driving mode andthe unmanned driving mode is improved, meanwhile, different requirements of the manned driving and the unmanned driving for a steering system are met, and the requirement of automatic driving development is better met.

Description

Technical field: [0001] The invention relates to an automatic driving steering system, in particular to an automatic driving wire control retractable mechanical redundant steering column, which belongs to the technical field of unmanned driving wire control redundant steering. Background technique: [0002] The two driving modes common to autonomous vehicles are unmanned driving and human driving. Although some self-driving vehicles have canceled the steering wheel in the cockpit, these self-driving vehicles that have canceled the steering wheel still have a need for manual takeover of the steering wheel in unplanned road operations, debugging or emergency situations. [0003] At present, the steering system for automatic driving is mainly divided into electric power steering (EPS) and steering by wire (SBW, which cancels the mechanical connection between the steering wheel and the steering gear). EPS is currently widely used. Since EPS retains the mechanical steering colum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D1/187B62D1/04B62D5/04
CPCB62D1/187B62D1/04B62D5/0421
Inventor 黄永阔董钊志马跃龙赵峯王春海刘立军
Owner 开沃新能源汽车集团股份有限公司
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