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A multi-state steering system for a vehicle

A steering system and multi-state technology, applied in the field of multi-state steering systems of vehicles, can solve the problems of limited steering action and inability to turn in a small space, and achieve the effects of realizing steering sensitivity, simplifying complex structure and improving flexibility.

Pending Publication Date: 2019-09-13
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to propose a multi-state steering system for a vehicle, which solves the problems in the prior art that the steering action is limited and the steering action cannot be completed in a narrow space

Method used

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  • A multi-state steering system for a vehicle
  • A multi-state steering system for a vehicle
  • A multi-state steering system for a vehicle

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Embodiment Construction

[0031] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0032] See attached figure 1 - attached image 3 , a vehicle multi-state steering system of the present invention includes a steering mechanical system and a hydraulic control system;

[0033] The steering mechanical system includes a front wheel steering unit that controls the steering of the front wheels and a rear wheel steering unit that controls the steering of the rear wheels; the front wheel steering unit includes at least a left front hydraulic cylinder 1 and a right front hydraulic cylinder 2, and the left front hydraulic cylinder 1 Placed coaxially and opposite to the right front hydraulic cylinder 2 and communicated with the rodless cavity, the left front hydraulic cylinder 1 and right front hydraulic cylinder 2 respectively drive the left front wheel and the right front wheel to turn through a set of steering drive mechanisms; the rear wheel...

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Abstract

A multi-state steering system for a vehicle belongs to the technical field of vehicle steering control, and aims to solve the problem that the steering operation in the prior art is limited and the steering operation cannot be completed in a narrow space. A steering mechanical system of the present invention includes a front wheel steering unit that controls front wheel steering and a rear wheel steering unit that controls rear wheel steering. The front wheel steering unit at least includes a left front hydraulic cylinder and a right front hydraulic cylinder, and the left front hydraulic cylinder and the right front hydraulic cylinder are placed coaxially opposite each other and have no rod cavity connection. The left front hydraulic cylinder and the right front hydraulic cylinder respectively drive a left front wheel and a right front to turn through a steering drive mechanism. The rear wheel steering unit at least includes a left rear hydraulic cylinder and a right rear hydraulic cylinder. The left rear hydraulic cylinder and the right rear hydraulic cylinder are coaxially arranged opposite each other and have no rod cavity communication, and the left rear hydraulic cylinder andthe right rear hydraulic cylinder respectively drive a left rear wheel and a right rear wheel to turn through a steering drive mechanism. The hydraulic control system controls piston rods of the leftfront hydraulic cylinder, the right front hydraulic cylinder, the left rear hydraulic cylinder and the right rear hydraulic cylinder to extend or retract.

Description

technical field [0001] The invention belongs to the technical field of vehicle steering control, and in particular relates to a multi-state steering system of a vehicle. Background technique [0002] Traditional vehicle steering generally follows Ackermann's steering law, and the connecting rod structure forms a steering trapezoid to complete the steering of the vehicle. According to different steering modes, it is generally divided into front-wheel steering, rear-wheel steering and four-wheel steering. However, the current steering mechanism cannot complete the in-situ steering of the vehicle, and cannot complete the steering action in a space-constrained area, which greatly limits the vehicle. The maneuverability of the vehicle also aggravates the driver's operational fatigue. In order to make the vehicle have good flexibility and maneuverability, the in-situ steering mode is particularly important. Contents of the invention [0003] The purpose of the present inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/06F15B11/16
CPCB62D5/06F15B11/16
Inventor 刘昕晖曹丙伟陈伟谭鹏徐飞翔周晨王永超
Owner JILIN UNIV
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