Method for high-energy efficiency control over inlet and outlet electro-hydraulic position independent regulation servo system based on proportional overflow valve
An electro-hydraulic position servo, proportional relief valve technology, applied in servo motors, servo meter circuits, servo motor components, etc., can solve the problems of low pressure loss and heat generation, low energy efficiency of electro-hydraulic valve-controlled servo systems, etc. The effect of pressure loss, improving energy utilization efficiency and reducing overflow loss
Active Publication Date: 2020-01-24
TAIYUAN UNIV OF TECH
5 Cites 1 Cited by
AI-Extracted Technical Summary
Problems solved by technology
View more
Abstract
The invention discloses a method for high-energy efficiency control over an inlet and outlet electro-hydraulic position independent regulation servo system based on a proportional overflow valve. Theoverall control strategy is implemented through four sub-controllers, namely the position controller, the back pressure controller, the overflow pressure regulating controller and the pump flow controller. The position controller controls the flow of an oil inlet cavity of a hydraulic actuator through adjusting the position of a valve core of a servo valve I on the basis of a given position instruction and actual position feedback of the hydraulic actuator; the back pressure controller controls the pressure of an oil outlet cavity of the hydraulic actuator by adjusting the position of a valvecore of a servo valve II on the basis of the reference back pressure value and the actual back pressure cavity pressure of the hydraulic actuator; based on the pressure of the oil inlet cavity and thepressure drop on the valve I, the overflow pressure adjusting controller adjusts the proportional overflow valve online, and sets the oil source pressure of a hydraulic system in real time to reducethe pressure loss of a valve port; and by adjusting the rotating speed of a motor, the flow controller adjusts the flow output of a pump to be matched with the flow required by the system in real timeso as to reduce overflow flow loss.
Application Domain
Servomotor componentsServomotors +1
Technology Topic
Electric machineryServo +7
Image
Examples
- Experimental program(1)
Example Embodiment
PUM


Description & Claims & Application Information
We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
Similar technology patents
CDMA receiver capable of estimation of frequency offset in high precision
Owner:LENOVO INNOVATIONS LTD HONG KONG
Training method for two-dimensional face recognition model based on deep convolutional neural network
Owner:北京品恩科技股份有限公司
Classification and recommendation of technical efficacy words
- small pressure loss
- High precision
Honeycomb catalyst and manufacturing method thereof
Owner:NGK INSULATORS LTD
Water-carrying domestic appliance having a water-distribution mechanism
Owner:BSH BOSCH & SIEMENS HAUSGERAETE GMBH
Air conditioning thin register
Owner:TOYODA GOSEI CO LTD
Device for treating low concentration methane in ventilation air methane (VAM) of coal mine and method thereof
Owner:BEIJING UNIV OF CHEM TECH +1
Multiple spiral dust collector
Owner:LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD