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Intelligent variable speed control method, device and system

A control method and control device technology, applied in engine control, transmission control, transportation and packaging, etc., can solve problems such as large handle opening, hydraulic system overflow, flameout, etc.

Inactive Publication Date: 2017-11-07
SANY AUTOMOBILE HOISTING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional cranes, no matter single engine or double cranes, control the running state of the hoisting process through the handle and accelerator pedal according to the working conditions. However, it is difficult to achieve the best cooperation between the handle and the accelerator pedal, especially for novices, often appearing in the following two ways: Situation: The handle opening is too large, but the throttle opening is not enough. This situation will easily cause the engine to slow down or even stall; or the throttle opening is too large, resulting in overflow of the hydraulic system and high fuel consumption.

Method used

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  • Intelligent variable speed control method, device and system
  • Intelligent variable speed control method, device and system

Examples

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no. 1 example

[0040] see figure 2 , shows a functional block diagram of the intelligent shift control device 200 provided by the embodiment of the present invention. The intelligent shift control device 200 includes a signal receiving unit 201 , a computing unit 202 , an operating state adjusting unit 203 , a judging unit 204 and a signal generating unit 205 .

[0041] The signal receiving unit 201 is used for receiving the input handle opening signal and load state signal.

[0042] After the handle opening signal collection module 105 collects the handle opening signal and the load state collection module collects the load state signal, the handle opening signal collection module 105 and the load state collection module respectively transmit the handle opening signal and the load state signal to the signal receiving unit 201.

[0043]It should be noted that the handle opening signal is a signal generated by the operator operating the handle when the operating speed of the crane needs to...

no. 2 example

[0063] The basic principles and technical effects of the intelligent variable speed control method provided by the embodiment of the present invention are the same as those of the above embodiment. For brief description, for the parts not mentioned in this embodiment, reference may be made to the corresponding content in the above embodiment.

[0064] see image 3 , shows a flow chart of the intelligent shift control method provided by the embodiment of the present invention.

[0065] Step S301: Receive the input handle opening signal and load state signal.

[0066] Understandably, step S301 may be executed by the signal receiving unit 201 .

[0067] It should be noted that the handle opening signal is a signal generated by the operator operating the handle when the operating speed of the crane needs to be changed, and is used to represent the current opening of the handle.

[0068] In addition, in a preferred embodiment, the load status signal includes the oil pump pressure...

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Abstract

The embodiment of the invention provides an intelligent variable speed control method, device and system, and relates to the field of variable speed control. According to the intelligent variable speed control method, device and system, the gear of a gearbox is adjusted according to a calculated gear demand, the throttle opening is adjusted according to a throttle opening demand, and thus, through cooperation of the gear demand and the throttle opening demand, the throttle opening is controlled to be collaborated with the operation of gear shifting so that the two effects of fuel oil saving and sufficient power can be met simultaneously while automatic gear shifting can be achieved; in addition, automatic control over the gear of the gearbox can be achieved by controlling opening of a hand shank by a manipulator, and the hoisting operation of the manipulator through a crane is simplified; and finally, due to the fact that the throttle opening demand is calculated through a hand shank opening signal and a load state signal instead of controlling the throttle opening through a traditional accelerator pedal, the situation that the throttle opening and the opening of the hand shank are not matched well can be avoided.

Description

technical field [0001] The present invention relates to the technical field of variable speed control, in particular to an intelligent variable speed control method, device and system. Background technique [0002] A crane refers to a multi-action hoisting machine that lifts vertically and carries heavy objects horizontally within a certain range. The process of carrying heavy objects is called hoisting. [0003] Traditional cranes, whether it is a single engine or two cranes, control the operating status of the hoisting process through the handle and accelerator pedal according to the working conditions. However, it is difficult to achieve the best cooperation between the handle and the accelerator pedal, especially for novices, often appearing in the following two ways: Situation: The handle opening is too large, but the throttle opening is not enough. This situation will easily cause the engine to slow down or even stall; or the throttle opening is too large, resulting in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C13/20F16H61/02F02D11/10
CPCB66C13/20F02D11/10F16H61/0202F16H2061/0244
Inventor 谭松涛谢文尚杜坚
Owner SANY AUTOMOBILE HOISTING MACHINERY
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