Control method and device of working machine and working machine

Abstract

The invention provides a control method and device of an operation machine and the operation machine, the operation machine comprises an arm support, and the control method comprises the steps that the arm support is controlled in a first control mode; determining that the target operation position is located outside the operation range of the operation end of the boom, and switching to a second control mode; controlling the arm support in the second control mode; wherein the safety coefficient of the second control mode is smaller than that of the first control mode. According to the control method and device of the operation machine and the operation machine, at least two control modes are set, the operation machine preferentially works in the control mode with the higher safety coefficient, and when the target operation position exceeds the operation range, the operation machine can be switched to the control mode with the larger operation range to work; therefore, the working machine is safe and wide in working range.

Description

technical field [0001] The present invention relates to the technical field of machine safety control, and in particular, to a control method, device and work machine for a working machine. Background technique [0002] During the operation of the working machine, the stretching and movement of various structures are involved, so that the center of gravity of the working machine will change greatly during the operation. Especially for working machines with booms, such as concrete pump trucks, the booms are long in length and heavy in weight. During the operation, the state of the booms has a great influence on the center of gravity of the whole vehicle. It is easy to cause the overturning of the working machine. [0003] In related technologies, the center of gravity of the whole vehicle is mostly calculated in real time, and the boom is controlled by monitoring the position of the center of gravity. This control method requires a large amount of calculation and has hystere...

AI Technical Summary

Problems solved by technology

Especially for working machinery with booms, such as concrete pump trucks, the boom length is large and the weight is heavy. During the operation, the state of the boom has a great influence on the center of gravity of the vehicle. It is easy to cause the working machinery to overturn

[0003] In related technologies, the center of gravity of the whole vehicle is mostly calculated in real time, and the boom is controlled by monitoring the position of the center of gravity. This control method requires a large amount of calculation and has hysteresis; or through simple partition control, the movement of the boom in each area is preset. Range, this control method will seriously restrict the operating range of the boom

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