Intelligent control method and system for agricultural machinery hst center automatic return

An intelligent control system and automatic return technology, applied in the direction of transmission control, mechanical equipment, gear transmission mechanism, etc., can solve problems such as excessive impact force, machine imbalance, agricultural machine body imbalance, etc.

Active Publication Date: 2020-10-27
NANJING AGRI MECHANIZATION INST MIN OF AGRI
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the HST returns to the neutral position, it will generate excessive impact force and cause the whole machine to be unbalanced, which will easily cause the unbalanced state of the agricultural machine body and cause safety accidents

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Intelligent control method and system for agricultural machinery hst center automatic return
  • Intelligent control method and system for agricultural machinery hst center automatic return
  • Intelligent control method and system for agricultural machinery hst center automatic return

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.

[0046] combine figure 1 , the present invention refers to an intelligent control method for automatic return of HST neutral position of agricultural machinery. Reduce the output displacement of the HST variable flow pump, including the following steps:

[0047] S1: Receive the return-to-neutral control command sent from the outside, and detect the initial output current I of the solenoid valve t .

[0048] S2: Set the minimum drive value of the solenoid valve to I min , calculate the number of control segments M of the solenoid valve according to the following formula:

[0049]

[0050] Among them, M is a positive integer, ΔI is the preset output current drop,

[0051] S3: Take ΔT as the control cycle, and reduce the output current of the solenoid valve step by step according to the calcu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an intelligent control system of agricultural machinery HST neutral automatic return. The intelligent control system comprises a double-knife electronic switch, a control device, a solenoid valve, an HST variable flow pump, a flow distributor and a hydraulic device, the double-knife electronic switch is used for inputting vehicle shift command, and the control device periodically adjusts the output current of the solenoid valve in sections according to the preset intelligent control method of agricultural machinery HST neutral automatic return so as to complete the vehicle shift command in sections. According to the intelligent control system of agricultural machinery HST neutral automatic return, the output current of the solenoid valve can be adjusted in stages, and the output displacement change value of the HST variable flow pump is adjusted stage by stage in M sections according to the set period, so that an agricultural machine is capable of maintaining the stability of a vehicle body during shift switching, and the comfort and safety of agricultural machinery driving are improved.

Description

technical field [0001] The present invention relates to the technical field of intelligent agricultural machinery, in particular to an intelligent control method and system for the automatic return of HST neutral position of agricultural machinery. Background technique [0002] With the development of technology and the progress of the times, the combination of HST continuously variable speed + stepped mechanical gearbox will gradually replace the traditional mechanical transmission mode and become the development direction of high-end agricultural machinery. Invention patent ZL201510432176.9 "HST continuously variable speed multi-gear one-lever control system" discloses a HST continuously variable speed multi-gear one-lever control system. , Forward and reverse all walking functions are controlled in one body, which makes the driving operation more convenient and comfortable, and fully embodies the advantages of hydraulic drive. [0003] However, when the HST returns to th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/04F16H61/02F16D65/14F16D121/02
CPCF16D65/14F16D2121/02F16H61/0204F16H61/04F16H2061/0075
Inventor 王素珍
Owner NANJING AGRI MECHANIZATION INST MIN OF AGRI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap