Intelligent control hydraulic system and functional loop simulation modeling method of intelligent control hydraulic system
A hydraulic system and hydraulic technology, applied in the field of intelligent control hydraulic system and functional circuit simulation modeling, can solve the problems of large throttling loss of the hydraulic system, difficult precise control of the execution unit, large oil temperature rise, etc., so as to reduce the overall cost , The effect of hydraulic transmission control simplification and elimination of simulation or calculation errors
Pending Publication Date: 2022-02-22
潍坊嘉腾液压技术有限公司
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Problems solved by technology
[0011] At present, conventional hydraulic systems are usually hydrostatic transmissions composed of pumps, control valves, and hydraulic actuators (hydraulic cylinders, hydraulic motors), usually including relief valves for controlling system pressure, orifices (or valves) for speed control, etc. , and the working principle of the overflow valve is also controlled by the size of the orifice flowing back to the oil tank, so the throttling loss of the hydraulic system is relatively large, and the temperature rise of the oil is relatively large; moreover, due to the large number of hydraulic control valves used, There is generally no linear relationship between the opening of the control valve position and the actual flow or pressure, so it is difficult for the execution unit (hydraulic cylinder, hydraulic motor) to precisely control the work
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[0056] As a preferred embodiment of the present invention, the power source 20 is a diesel engine, a gasoline engine, a gas engine or an electric motor, and the fuel supply of the diesel engine or the gasoline engine, the gas supply of the gas engine, or the control of The motor increases the current or voltage to regulate the output power of the power source 20 . Different power output machines have their own advantages and disadvantages, and the appropriate machine can be selected as the power source according to the actual working conditions. Electrification control is practical, with manual and electric control methods. During the operation of the system, corresponding methods and strategies can be adopted for different situations. It has the characteristics of accuracy, efficiency, real-time monitoring and high safety performance. . Digital control technology has faster control performance, high flexibility and higher degree of programmability.
[0057]As a preferred em...
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The invention discloses an intelligent control hydraulic system and a functional loop simulation modeling method of the intelligent control hydraulic system. The intelligent control hydraulic system comprises a control unit, a power source, a variable pump, a multi-parameter detection integrated composite sensor, a high-speed switch valve group and a hydraulic execution unit; according to the system, detection signals of input and output power of a hydraulic execution unit are mainly converted into regulation and control signals of a high-speed switch valve group, a variable pump or a power source through a control unit; the flow or pressure of the pumped oil is accurately performed, and the problems of pressure regulation energy loss and temperature rise of an overflow valve in a conventional hydraulic system are solved. In order to provide an accurate control simulation model for a control unit, a novel circuit fitting simulation model is created and is used for monitoring simulation of a high-speed switch valve group and a hydraulic execution unit.
Description
technical field [0001] The invention relates to the technical field of hydraulic pressure, in particular to an intelligent control hydraulic system and a functional circuit simulation modeling method of the intelligent control hydraulic system. Background technique [0002] With the development of AI technology, human beings need high-power construction equipment, such as hydraulic excavators, to cope with increasingly complex and changeable natural environments or disasters. However, areas where disasters occur are often accompanied by many dangerous situations. Considering personnel safety, it has become a trend to develop remote-controlled excavators or self-driving excavators. [0003] The usual remote control or automatic driving technology usually uses stepping motors and other electrical components that are easy to digitally control, but the power density of stepping motors and other electrical components is relatively small compared with hydraulic technology, and it ...
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IPC IPC(8): G06F30/17G06F30/20G06F119/14
CPCG06F30/17G06F30/20G06F2119/14
Inventor 黄爱武毛宗国王洪涛
Owner 潍坊嘉腾液压技术有限公司