Intelligent control method of working gear of excavator

Abstract

The invention relates to power control over excavators and provides an excavator operation gear position intelligent control method in order to solve the problem that the operation gear positions of an existing excavator cannot be adjusted adaptively according to the working conditions. The excavator operation gear position intelligent control method comprises the following steps of determining amain operation area of an engine within a preset time duration and determining the output power interval and operation oil consumption of the main operation area when the engine operates at the current gear position according to the determined main operation area; detecting the pressure of an outlet of a main pump and judging the gear shifting tendency of the operation gear positions of the excavator; predicting operation oil consumption of the engine operating in the same power interval after the engine is subjected to gear shifting according to the gear shifting tendency on the basis of theuniversal characteristics curve of the engine and the output power interval of the main operation area when the engine operates at the current gear position; comparing the predicted operation oil consumption with original operation oil consumption, conducting gear shifting if the predicted operation oil consumption is less than the original operation oil consumption, and not conducting gear shifting if the predicted operation oil consumption is higher than the original operation oil consumption. Through the excavator control method, the gear positions of the excavator can be automatically adjusted, so that the excavator is more suitable for the current working condition, the oil consumption is reduced, and the efficiency is improved.

Description

technical field [0001] The invention relates to an excavator control, in particular to an intelligent control method for the working gear of the excavator. Background technique [0002] At present, the excavator adopts the full power control method or the adaptive control method. Firstly, the output power of the engine is set to match the estimated power required by the hydraulic pump, and the power absorbed by the hydraulic pump is always less than or equal to the output power of the engine. The working device moves smoothly, and the engine speed changes little. The working gear of the excavator cannot be changed automatically, and it has adapted to the change of the working load of the excavator. In this excavator control method, if the working gear is selected unreasonably, the fuel consumption of the engine will be increased and the working efficiency of the excavator will be reduced. Contents of the invention [0003] The technical problem to be solved by the presen...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an intelligent control method for the working gear of an excavator that can automatically adjust the working gear according to the working conditions in view of the problem that the working gear of the existing excavator cannot be adaptively adjusted according to the working conditions

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