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Bulldozer steering control method and system

A technology for steering control and bulldozers, which is applied to steering mechanisms, earth movers/shovels, and non-deflectable wheel steering, etc. It can solve problems such as low working efficiency of bulldozers, unresponsiveness of bulldozers, and bumping of bulldozers to improve driving comfort performance, reduce difficulty, and improve work efficiency

Active Publication Date: 2020-09-25
LIUGONG CHANGZHOU MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the steering mode control of most bulldozers in the market is relatively simple. Generally, only fast and slow gears are set, and the speed change is simply proportional to the steering angle. Therefore, when selecting the fast When the bulldozer is turned in a slow gear, it often causes the bulldozer to turn too fast, causing serious bumps in the bulldozer, and the overall comfort is poor. When the bulldozer is turned in a slow gear, it often causes the bulldozer to respond slowly, resulting in low working efficiency of the bulldozer

Method used

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  • Bulldozer steering control method and system
  • Bulldozer steering control method and system

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] It should be noted that the bulldozer steering control method and the bulldozer steering control system in the embodiment of the present invention mainly act on a crawler bulldozer, and the bulldozer has an engine and left and right travel motors corresponding to the crawler belts. The following will combine figure 1 Firstly, the steering control method of the bulldozer according to the embodiment of the present invention will be explained.

[0027] Suc...

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Abstract

The invention provides a bulldozer steering control method and system. The method comprises the following steps of acquiring a steering mode of a bulldozer; acquiring a steering control command and anengine rotating speed of the bulldozer; obtaining a target steering speed of the bulldozer according to the steering mode, the steering control command and the engine rotating speed; acquiring load pressure of the bulldozer and an actual steering speed under the action of the load pressure; obtaining a steering speed difference value of the bulldozer according to the target steering speed and theactual steering speed; and adjusting the engine rotating speed and rotating speed of left and right walking motors in real time according to the steering speed difference value so as to stably control the steering speed of the bulldozer. According to the method and the system, the steering speed of the bulldozer under the load pressure condition can be automatically adjusted, so that the condition that the steering speed is too high or too low can be avoided, the working efficiency and the driving comfort of the bulldozer can be improved, in addition, the steering operation difficulty of thebulldozer can be effectively reduced, and the operation impact caused when the bulldozer is steered can be reduced.

Description

technical field [0001] The invention relates to the technical field of bulldozer control, in particular to a bulldozer steering control method and a bulldozer steering control system. Background technique [0002] At present, the steering mode control of most bulldozers in the market is relatively simple. Generally, only fast and slow gears are set, and the speed change is simply proportional to the steering angle. The bulldozer has relatively serious bumps, and the overall comfort is poor. When the slow gear is selected to operate the bulldozer to turn, it often leads to the slow response of the bulldozer, resulting in low working efficiency of the bulldozer. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the above-mentioned technologies at least to a certain extent. For this reason, an object of the present invention is to propose a bulldozer steering control method, which can automatically adjust the steering spe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F3/84E02F9/20B62D11/04
CPCE02F3/841E02F9/20E02F9/2087B62D11/04
Inventor 龚纪强
Owner LIUGONG CHANGZHOU MACHINERY
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