Construction machine control method and construction machine

By identifying hazardous areas in excavating machinery and adjusting the opening of the electromagnetic proportional valve to reduce the cylinder flow and control the speed of the actuators, the problem of collisions between the actuators and obstacles is solved, enabling safe operation and flexible control while the engine is running normally.

CN116538165BActive Publication Date: 2026-07-14SHANDONG LINGONG CONSTR MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG LINGONG CONSTR MACHINERY CO LTD
Filing Date
2023-05-26
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

During excavation operations, especially under complex working conditions, the actuators are prone to collisions with obstacles, leading to damage or accidents. In existing technologies, the excavator drive system stops outputting, affecting operational flexibility.

Method used

By identifying the danger zone of the actuator and adjusting the opening of the electromagnetic proportional valve to reduce the cylinder flow, the movement speed of the actuator is controlled to avoid collisions. At the same time, it is monitored in real time whether the actuator is away from the danger zone and the maximum speed is restored.

Benefits of technology

When the engine is operating normally, avoid collisions between the actuators and obstacles to ensure that the flexibility of operation is not affected, protect the safety of the actuators, and avoid machine shutdown.

✦ Generated by Eureka AI based on patent content.

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    Figure CN116538165B_ABST
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Abstract

The present application relates to the field of engineering machinery, and especially relates to a control method of engineering machinery and engineering machinery. The method comprises the following steps: determining a dangerous area of an executing component of the engineering machinery; if the executing component enters the dangerous area during operation, adjusting the opening of an electromagnetic proportional valve to reduce the flow into the cylinder of the executing component to reduce the movement speed of the executing component, and detecting in real time whether the executing component is away from the dangerous area, if it is determined that the executing component is away from the dangerous area, controlling the opening of the electromagnetic proportional valve to be fully open, the flow into the cylinder of the executing component is the maximum value, and the executing component operates at the maximum speed. The executing component can be prevented from colliding with an obstacle due to high speed during operation. The executing component is protected under the premise that the whole engineering machinery does not stop. Reducing the flow of oil into the cylinder of the executing component can avoid the influence on the operation of other components, and the movement speed of the executing component is accurately controlled.
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