Control method and system for elevating fire truck boom and elevating fire truck

A control method and technology of a control system, applied in the field of construction machinery, can solve the problem that speed and stability cannot be guaranteed at the same time.

Active Publication Date: 2020-09-29
CHANGSHA ZOOMLION FIRE FIGHTING VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, whether the hydraulic system adds damping or buffers, or the electrical system accelerates and decelerates through current ramps, the ordinary ramp buffering method has a game of stability and speed, and cannot guarantee both speed and stability

Method used

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  • Control method and system for elevating fire truck boom and elevating fire truck
  • Control method and system for elevating fire truck boom and elevating fire truck
  • Control method and system for elevating fire truck boom and elevating fire truck

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Embodiment Construction

[0056] 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.

[0057] figure 1 It is a working flow chart of a method for controlling the boom of a raised platform fire truck provided by an embodiment of the present invention. Such as figure 1 As shown, an embodiment of the present invention provides a method for controlling the boom of an elevated platform fire truck, and the method includes the following operations to be performed when the boom is started and / or when the boom is stopped.

[0058] When controlling the start of the boom, the operations performed by the method for controlling the boom of the elevating platform fire truck inc...

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PUM

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Abstract

The invention provides an elevating fire vehicle boom control method and system and an elevating fire vehicle. By means of the elevating fire vehicle boom control method and system and the elevating fire vehicle, vibration caused when a boom starts and / or stops can be eliminated, and stability and safety of the boom in the operation process can be improved. The method includes operation executed when the boom is controlled to start and / or the boom is controlled to stop. When the boom is controlled to start, the expected movement speed signal v0 of the boom is confirmed, and the corresponding drive oil cylinder flow L0 is calculated when the boom stably moves according to the expected movement speed signal v0; the flow L1 required for making a drive oil cylinder drive the boom to start in a constant-speed manner is obtained; the maintenance time t1 of the flow L1 is obtained; and the flow of the drive oil cylinder is controlled to meet the flow L1, and under the condition that the maintenance time of the flow reaches the maintenance time t1, the flow of the drive oil cylinder is controlled to meet the flow L0.

Description

technical field [0001] The present invention relates to the field of construction machinery, and more specifically, to a control method for elevating the boom of a fire truck, a control system for elevating the boom of a fire truck, and an elevating fire truck including the system. Background technique [0002] Due to the critical situation at the scene when the fire truck is raised to perform rescue tasks, there are high requirements for the stability of the boom when it starts and stops. At present, the booms of elevating fire trucks are generally driven by electronically controlled hydraulic cylinders. Due to the flexibility of the booms, when the electric control system controls the rapid start and stop of the driving cylinders, the booms will not move rapidly and accordingly. Instead, it will perform periodic damping of simple harmonic vibration, and it will generally take a long time for the vibration to stop. Such a control method will cause shaking of the working bu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B21/08F15B21/02B66C23/693
CPCB66C23/705F15B21/087
Inventor 张萧笛熊忆周磊李亚洲韩冰
Owner CHANGSHA ZOOMLION FIRE FIGHTING VEHICLE
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