Excavator power control component and method

A technology of power control and control method, which is applied in the direction of earth mover/shovel, construction, etc., can solve the problems of high error rate, slow speed, large error, etc., and achieve the effect of fast and accurate constant power control

Active Publication Date: 2015-11-25
SHANGHAI HUAXING DIGITAL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of slow speed, large error, high error rate and inaccurate constant power control in the calculation of constant power in current excavator constant power control, an excavator power control component and method are now provided

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  • Excavator power control component and method

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] Such as figure 1 As shown, the embodiment of the present invention provides an excavator power control assembly, including: an information collection unit for collecting data information of the engine, the main pump and the pilot. The stall feed-forward unit is connected with the information acquisition unit, and is used to feedback and adjust the output power of the main pump according to the received engine speed change data. The constant power unit is connected with the information collection unit, and fits the power-flow curve according to the characteristics of the main pump, and controls the output of the main pump according to the received main pressure information of the main pump. The pilot power unit is connected with...

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Abstract

The invention discloses a component and a method for controlling the power of an excavator, and belongs to the technical field of excavators. The control component comprises a speed reduction front feed unit, a constant power unit, a pilot power unit and a constant power coupling unit, the speed reduction front feed unit is used for adjusting the output power of a main pump according to rotation speed change of an engine due to load change, the constant power unit fits a power-flow curve according to characteristics of the main pump and controls output of the main pump according to real-time acquired main pressure information of the main pump, the leading power unit fits a pilot-displacement curve according to characteristics of a main valve and controls output of the main valve, and the constant power coupling unit adjusts the displacement of the main pump in a coupling manner according to an output signal of a constant power component and an output signal of a pilot power component. The speed reduction front feed unit adjusts the output power of the main pump, the constant power coupling unit outputs a flow signal of the main pump after coupling the output signals of the main pump and a pilot, a main pump flow adjuster is jointly controlled to adjust the flow of the main pump, and the constant power is rapidly and accurately controlled.

Description

technical field [0001] The invention relates to the technical field of excavators, in particular to an excavator power control component and method. Background technique [0002] An excavator, also known as an excavator, is an earth-moving machine that uses a bucket to excavate materials that are higher or lower than the bearing surface, and load them into transport vehicles or unload them to the stockyard. With social development and construction needs, excavators are used more and more widely, and excavators play a pivotal role in mineral development, water conservancy construction and road construction. And its power source is mainly diesel engine, so the emission and fuel economy of diesel engine are greatly concerned by people. Due to the harsh working conditions of construction machinery and large load changes, the diesel engine often deviates from the low fuel consumption area to work, so that the performance of the machine cannot be fully utilized. [0003] At pres...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02F9/20
Inventor 袁爱进罗建华张晓峰
Owner SHANGHAI HUAXING DIGITAL TECH
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