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A Method of Excavator Power Matching Based on Power Matching Rule Base

A technology for excavators and power, which is applied to soil movers/shovels, controllers with specific characteristics, buildings, etc. It can solve problems such as high fuel consumption, reduce energy loss, and solve the effects of incorrect gear setting

Active Publication Date: 2022-05-10
DALIAN UNIV OF TECH
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  • Claims
  • Application Information

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Problems solved by technology

But there is often a problem in this way, the matching of the engine-hydraulic pump-valve may not be on the optimal fuel consumption curve, resulting in relatively high fuel consumption

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  • A Method of Excavator Power Matching Based on Power Matching Rule Base
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  • A Method of Excavator Power Matching Based on Power Matching Rule Base

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Embodiment Construction

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments.

[0024] The present invention is based on the following principle: due to the variability of the external load of the hydraulic excavator, especially in the case of high speed and small load; Excavator engines often work in non-economic areas. The present invention establishes a dynamic matching rule library for excavators, monitors the changes of pump outlet pressure and rotational speed under the current working condition in real time, and compares and calculates preset target values ​​in the rule library in real time to judge the displacement / flow...

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Abstract

The invention relates to a power matching method of an excavator based on a power matching rule base, which belongs to the technical field of construction machinery excavators. This method utilizes the universal characteristic curve, the speed regulation characteristic curve and the best fuel consumption curve, and makes the main controller continuously adjust the engine speed under the preset working conditions and power until the power consumption corresponding to the working mode is found to be the lowest. and set the speed with the lowest fuel consumption as the target speed value in this working mode. A multivariate parameter matrix is ​​constructed according to each parameter to achieve the best matching relationship between the engine-hydraulic pump-valve under any pump outlet pressure. Finally, real-time power matching is realized through the matching relationship.

Description

technical field [0001] The invention belongs to the technical field of construction machinery excavators, and in particular relates to a method for power matching of excavators based on a power matching rule library. Background technique [0002] Hydraulic excavators are the main engineering machinery and equipment for infrastructure construction in my country, and are widely used in various engineering fields such as road construction, bridge erection, building construction, and mining. The materials excavated by hydraulic excavators are mainly coal ore, soil, rock, and pre-loose soil and sediment. The operating conditions are relatively harsh, the load changes greatly, and the output power of the power system does not match the required power. It is easy to overheat, the engine is often not in the economical fuel consumption area, and cannot operate in the economical mode, resulting in high emission pollution, high fuel consumption rate, and low energy utilization rate. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02F9/20E02F9/22G05B11/42
CPCE02F9/2025E02F9/2246G05B11/42
Inventor 刘伟嵬罗旋康杰桑勇曹旭阳张元良李国锋
Owner DALIAN UNIV OF TECH
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