A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CONTROLLING AN ELECTRIC PROPORTIONAL VALVE
A method for controlling an electric proportional valve (42) of a hydraulic excavator attachment (28) is disclosed. The electric proportional valve (42) is controllable based on an electric input to the electric proportional valve (42). The electric proportional valve (42) is connected to a hydraulic actuator (34) for actuating the hydraulic excavator attachment (28) and to a hydraulic pump (36) for providing a flow of hydraulic fluid to the electric proportional valve (42). The method comprises operating the hydraulic pump (36) at a desired flow rate depending on the hydraulic excavator attachment (28); setting a desired pressure differential (p) over the electric proportional valve (42); determining an actual pressure differential (p') over the electric proportional valve (42); determining a pressure deviation (p - p') between the desired pressure differential (p) and the actual pressure differential (p'); and operating the electric proportional valve (42) such that the actual pressure differential (p') approaches the desired pressure differential (p).
CONTROLLING AN ELECTRIC PROPORTIONAL VALVE
A method for controlling an electric proportional valve (42) of a hydraulic excavator attachment (28) is disclosed. The electric proportional valve (42) is controllable based on an electric input to the electric proportional valve (42). The electric proportional valve (42) is connected to a hydraulic actuator (34) for actuating the hydraulic excavator attachment (28) and to a hydraulic pump (36) for providing a flow of hydraulic fluid to the electric proportional valve (42). The method comprises operating the hydraulic pump (36) at a desired flow rate depending on the hydraulic excavator attachment (28); setting a desired pressure differential (p) over the electric proportional valve (42); determining an actual pressure differential (p') over the electric proportional valve (42); determining a pressure deviation (p - p') between the desired pressure differential (p) and the actual pressure differential (p'); and operating the electric proportional valve (42) such that the actual pressure differential (p') approaches the desired pressure differential (p).
CONTROLLING AN ELECTRIC PROPORTIONAL VALVE
STEUERUNG EINES ELEKTRISCHEN PROPORTIONALVENTILS
COMMANDE D'UNE SOUPAPE PROPORTIONNELLE ÉLECTRIQUE
JACOB SEBASTIAN (author)
2019-01-02
Patent
Electronic Resource
English
METHOD AND APPARATUS FOR DIAGNOSING ELECTRIC PROPORTIONAL PRESSURE REDUCING VALVE
| European Patent Office | 2016
METHOD AND APPARATUS FOR DIAGNOSING ELECTRIC PROPORTIONAL PRESSURE REDUCING VALVE
European Patent Office | 2021
PROCESS FOR CALIBRATING AN ELECTRO-PROPORTIONAL ADJUSTABLE PROPORTIONAL VALVE
European Patent Office | 2021
Electromagnetic proportional valve and construction machine
| European Patent Office | 2021