Control method and control system of working device, and engineering machinery for traction work

Abstract

The invention discloses a control method and a control system for a working device and engineering machinery for traction work. The control method for the working device comprises the steps: obtaining a turbine torsion and an engine torsion; calculating to acquire a torque ratio; if the torque ratio is within a preset torque ratio scope, maintaining the position of the current working device; when the torque ratio is more than the maximal torque ratio within the preset torque ratio scope, lifting the working device until obtaining a torque ratio which is not more than the maximal torque ratio; and when the torque ratio is less than the minimal torque ratio within the preset torque ratio scope, descending the working device until obtaining a torque ratio which is not less than the minimal torque ratio. According to the control method for the working device, the current operation condition of the working device is determined by the ratio of the turbine torsion to the engine torsion so as to control the lifting of the working device, improve the working efficiency and operation quality of the engineering machinery and reduce labor intensity of drivers.

Description

technical field [0001] The present invention relates to the technical field of engineering machinery, more specifically, to a control method and system for a working device and an engineering machinery used for traction work. Background technique [0002] At present, the construction machinery used for traction work, such as bulldozers, has extremely harsh working conditions and working environment. During the shoveling operation, the cycle action is frequent, and the working resistance changes in a large range. This kind of operation mainly depends on the driver to make a judgment according to the resistance of the blade, and manually operate the controller to control the lifting of the blade. Especially in the construction environment with various soil, rock and terrain conditions, the operator needs to frequently operate the lifting and lowering of the blade, which not only requires a high operating level of the driver, but also inevitably has a large delay and instabilit...

AI Technical Summary

Problems solved by technology

Especially in the construction environment with various soil, rock and terrain conditions, the operator needs to frequently operate the lifting and lowering of the blade, which not only requires a high operating level of the driver, but also inevitably has a large delay and instability. accuracy, resulting in problems such as low work efficiency, poor work quality, and high labor intensity

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