Simulation Research on Sensorless Control of Electric Push Rod Type Lodging Mechanism
ZHANG Meng
CHEN Fu
LIN Binfeng
Abstract：This paper presents a simulation study on sensorless control of an electric push rod lodging mechanism.Based on a special application scenario,the stable control of the electric push rod transmission mechanism is achieved without position sensors.By analyzing the operating conditions of the lodging load end speed during the lifting process of the lodging mechanism,the theoretical analysis of the load end speed is carried out,and a mathematical relationship model between the lodging load end speed and the motor end speed is directly established.Based on the sensorless control driving algorithm,real-time position and speed information of the lodging load end is inferred through the observed motor end position information,speed information,known mechanical installation relationship and angle information.By achieving precise position,speed,and current loop control of the motor,the load end position can be precisely controlled and the speed can be precisely and stably controlled.This control method can save the use of position sensors at the inverted load end and motor end,reduce system volume,reduce system weight,lower maintenance costs,and improve system environmental adaptability.The simulation results have verified the correctness and effectiveness of the control method.
Keywords：lodging mechanismservo motorelectric push rodposition sensorlessstability control
Publication Date：2025-06-20
Online Publishing Date：2025-09-23(First online date of this platform, not the publication date of the document)
Pages：7( 80-85,105 )