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A Control Method for Improving Fuel Economy of Excavator

A fuel economy and control method technology, applied in the field of engineering machinery engine control, can solve problems such as poor economy, and achieve the effects of good power and improved fuel economy

Active Publication Date: 2021-10-01
XCMG EXCAVATOR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the operating speed of the engine is increased, the power of the engine will be improved, and the operating efficiency will also be improved, but it will also make the engine work in a non-economic fuel consumption area, and the increase in fuel consumption will be far greater than the increase in efficiency, and the economy will be poor.

Method used

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  • A Control Method for Improving Fuel Economy of Excavator
  • A Control Method for Improving Fuel Economy of Excavator

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Embodiment Construction

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting 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. Embodiments of the present invention will be described in detail b...

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Abstract

The invention discloses a control method for improving the fuel economy of an excavator. The control method is as follows: first, set the basic engine speed and the maximum additional engine speed according to the fuel consumption characteristics of the engine, and at the same time obtain the intake air pressure from the engine control unit, and then set the engine according to the fuel consumption characteristics of the engine. The air pressure calculates the engine torque capacity percentage, calculates the actual additional speed value by using the maximum additional speed and the torque capacity percentage, and takes the sum of the actual additional speed and the basic engine speed as the actual speed demand of the engine. The invention improves the fuel consumption and power requirements of the excavator by dynamically controlling the engine speed, without choosing and balancing the fuel consumption and power performance.

Description

technical field [0001] The invention belongs to the technical field of engineering machinery engine control, and in particular relates to a control method for improving the fuel economy of an excavator. Background technique [0002] When the hydraulic excavator is working, a fixed engine speed is usually set to maintain a relatively stable working state of the engine. The engine speed setting will comprehensively consider factors such as power performance and fuel economy. When setting the speed of the excavator, first consider the fuel economy, so that the engine speed is in the economical fuel consumption zone of the engine, and then examine the power performance at the set speed. When the power performance does not meet the requirements, generally increase the power by directly increasing the engine speed setting However, it will make the engine work in the non-economic fuel consumption area, which will greatly increase the fuel consumption. How to improve power without ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/14F02D29/00
Inventor 王绪通宋之克耿家文牛东东刘立祥王禄邢泽成魏红敏蔺相伟卞清荣王青赵光张科伟徐威
Owner XCMG EXCAVATOR MACHINERY
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