Modeling method of aerial work platform base plate automatic levelling system

An aerial work platform and system modeling technology, applied in the field of autonomous leveling system modeling of aerial work platform chassis, can solve the problems of low leveling accuracy and lack of modeling analysis, so as to simplify the complexity, improve leveling accuracy and The effect of response speed

Pending Publication Date: 2019-11-01
HOHAI UNIV CHANGZHOU
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a modeling method for the autonomous leveling system of the chassis of the aerial work platform, which solves the problem of lack of reasonable modeling analysis and low leveling accuracy for uneven and soft ground question

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  • Modeling method of aerial work platform base plate automatic levelling system
  • Modeling method of aerial work platform base plate automatic levelling system
  • Modeling method of aerial work platform base plate automatic levelling system

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0033] When the aerial work platform starts to work, in order to achieve chassis leveling, it is divided into three stages:

[0034] In the first stage, after the aerial work platform arrives at the designated work place, the four outriggers are extended synchronously. After the first outrigger touches the ground, in order to overcome the soft and uneven ground, a pressure sensor is installed to detect whether the virtual space of the telescopic cylinder is solved. Leg problem, the remaining three legs touch the ground in turn, repeat the above;

[0035] In the second stage, after each outrigger is completely in contact with the ground, the displacement difference between each point of the chas...

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Abstract

The invention discloses a modeling method of an aerial work platform base plate automatic levelling system. The method includes the following steps: analyzing and simulating the ground according to work conditions of an aerial work platform bottom plate; invoking various hydraulic components from a hydraulic component design (HCD) library of AMESim according to a hydraulic system schematic diagram, and constructing a hydraulic system model; according to operating characteristics of the base plate, invoking a step signal, a switch signal and proportional-integral-derivative (PID) control from asignal library of AMESim, using a pressure value of each support leg as input to a assign a value to a function signal, outputting the function signal to an electromagnetic valve to form a closed-loop control system, and evaluating and optimizing the levelling precision of the base plate so as to complete construction of a control model. The modeling method of the aerial work platform base plateautomatic levelling system improves the leveling precision and response speed of the hydraulic system, and reduces the modeling complexity.

Description

technical field [0001] The invention belongs to the technical field of modeling, and in particular relates to a modeling method for an autonomous leveling system of an aerial work platform chassis. Background technique [0002] AMESim is a modeling and simulation platform for complex systems in multidisciplinary fields. Users can build complex system models in multidisciplinary fields on this single platform, and perform simulation calculations and in-depth analysis on this basis. They can also study any components on this platform. Or the steady-state and dynamic performance of the system. Examples include applications in fuel injection, braking systems, power transmission, hydraulic systems, electromechanical systems and cooling systems. Orientation towards engineering applications makes AMESim ideal for R&D departments in the automotive, hydraulic and aerospace industries. [0003] With the continuous increase of the working height of the aerial work vehicle, in order t...

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Application Information

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IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 刘志纪爱敏孙逸邓铭赵仲航王豪
Owner HOHAI UNIV CHANGZHOU
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