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Electrohydraulic control system and method and aerial working platform

An electro-hydraulic control system and electro-hydraulic control technology, applied in servo meter circuits, servo motor components, mechanical equipment, etc., can solve the problems of low control accuracy of motors and proportional valves, low effective utilization of energy, and impacts, etc., to achieve The effect of improving effective energy utilization, reducing energy loss and waste, and high work efficiency

Active Publication Date: 2018-03-23
JIANGSU XCMG CONSTR MASCH RES INST LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

This electro-hydraulic control method not only has an impact on the jib movement with medium energy requirements for lifting; but also the control accuracy of the motor and proportional valve is not high, and the effective utilization of energy is low.

Method used

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  • Electrohydraulic control system and method and aerial working platform
  • Electrohydraulic control system and method and aerial working platform
  • Electrohydraulic control system and method and aerial working platform

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Embodiment Construction

[0047] The present invention will be described in detail below. In the following paragraphs, different aspects of the embodiments are defined in more detail. Aspects so defined may be combined with any other aspect or aspects unless specifically stated otherwise. In particular, any feature considered to be preferred or advantageous may be combined with one or more other features which are considered to be preferred or advantageous.

[0048] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "height", "upper", "lower", "left" and "right" are based on the attached The orientation or positional relationship shown in the figure is only for the convenience of describing the present invention, and does not indicate or imply that the referred device must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as lim...

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Abstract

The invention relates to an electrohydraulic control system and method and an aerial working platform. The control system comprises a rotating speed determining module (10), an efficiency determiningmodule (20) and a parameter adjusting module (30), wherein the rotating speed determining module (10) is used for determining the rotating speed of a motor (2) used for driving a hydraulic pump (3) according to the required opening value of a proportional valve (4) between the hydraulic pump (3) and a hydraulic actuating mechanism; the efficiency determining module (20) is used for determining theworking efficiency of the motor (2) according to the target rotating speed of the motor (2); and the parameter adjusting module (30) is used for adjusting the opening value of the proportional valve(4) and / or the rotating speed of the motor (2) under the condition that the working efficiency of the motor (2) is lower than a preset efficiency value till the working efficiency of the motor (2) reaches the preset efficiency value. According to the electrohydraulic control system, matching of the rotating speed of the motor and the opening value of the proportional valve can be achieved, and therefore the energy utilization rate can be increased.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to an electro-hydraulic control system, a method and an aerial work platform. Background technique [0002] Aerial work platform is a kind of widely used and flexible construction machinery equipment. It can adapt to the needs of high-altitude work in different occasions by controlling the amplitude, telescopic, leveling, rotation and swing of the upper vehicle. This kind of highly versatile Equipment, because of its compact structure and limited power energy, has far-reaching significance for energy saving and consumption reduction. [0003] The power system of the existing aerial work platform is that the motor drives the hydraulic pump, a proportional valve controls the total flow, and multiple switch valves control the start and stop of each part of the boom. Although the motor and the proportional valve can be adjusted at the same time, in order to ensure that th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F15B13/16
CPCF15B13/02F15B13/16F15B2211/20515
Inventor 赵贞莲赵文祥李海龙
Owner JIANGSU XCMG CONSTR MASCH RES INST LTD
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