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Gear position control method, equipment and hoisting machinery of power system during boarding operation

A technology of power system and control method, applied in mechanical equipment, machine/engine, etc., can solve problems such as increased fuel consumption, unreasonable matching between load and engine, and achieve the effect of reducing fuel consumption rate

Active Publication Date: 2021-07-13
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a gear position control method and equipment for the power system during the boarding operation, aiming to solve the problem of increased fuel consumption caused by unreasonable matching between the load and the engine during the boarding operation in the existing lifting machinery question

Method used

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  • Gear position control method, equipment and hoisting machinery of power system during boarding operation
  • Gear position control method, equipment and hoisting machinery of power system during boarding operation
  • Gear position control method, equipment and hoisting machinery of power system during boarding operation

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Embodiment Construction

[0041] It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0042] The specific implementation manners of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation manners described here are only used to illustrate and explain the embodiments of the present invention, and are not intended to limit the embodiments of the present invention.

[0043] figure 1 It is a schematic flow chart of a gear control method of a power system during boarding operations according to an embodiment of the present invention. Such as figure 1 As shown, the present invention provides a gear position control method of a power system during boarding operations. The power system includes an engine, a transmission, and a power take-off that are sequentially power-coupled, and...

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Abstract

Embodiments of the present invention provide a gear position control method for a power system during boarding operations. The power system includes an engine, a transmission, and a power take-off that are sequentially power-coupled, and the output of the power take-off is used to drive a load. The method includes: obtaining the torque demand and rotational speed demand of the load; and calculating the engine power corresponding to each gear combination in the gear combination change set of the transmission and the power take-off based on the torque demand and the rotational speed demand. Fuel consumption rate; determine the gear combination with the lowest fuel consumption rate as the best gear combination. At the same time, it also discloses a gear position control device of the power system in the boarding operation. The embodiment of the present invention solves the problem of low energy utilization rate of the engine, reduces the fuel consumption rate of the engine in the hydraulic system, and improves the stability of the boarding operation.

Description

technical field [0001] The invention relates to the field of mechanical automatic control, in particular to a gear position control method of a power system during boarding operations, a gear position control device of a power system during boarding operations, and a hoisting machine. Background technique [0002] Energy saving and emission reduction has always been a key research topic of construction machinery. The energy utilization rate of domestic construction machinery is relatively low, especially for truck cranes, the total energy utilization rate is even lower. The most important reason for the low energy utilization rate of construction machinery is that during the loading operation of the crane, due to the continuous real-time changes in the load conditions, the output of the engine and the driving oil pump cannot maintain a good power match, which is specifically reflected in the power of the power system. The transmission gear does not work in the optimal gear,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B67/04F02B63/06
CPCF02B63/06F02B67/04
Inventor 黄珍何伟宋建清刘强沈昌武
Owner ZOOMLION HEAVY IND CO LTD
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