Method of operating a fluid system, fluid system and computer program product
AssigneeFesto AG & Co.
InventorsDaniel Klassen, Gerhard Gommel, David Rager
Life of this patent
Estimating the term…
Abstract
A method for operating a fluid system including the steps: receiving or determining a set value for a stroke of the working valve, determining an actual value for the stroke of the working valve using a sensor signal of a position sensor, determining a deviation value of a working valve in dependence on sensor signals of a supply pressure sensor and a working pressure sensor and a position sensor and a sensor system, and performing a processing of the set value for the stroke of the working valve, the actual value for the stroke of the working valve and the deviation value to a control signal for driving the working valve.
Claims18
A method for operating a fluid system which comprises a controller, a working valve which can be activated by the controller and which working valve comprises an inlet port to which a fluid source and a supply pressure sensor are connected and which working valve comprises an outlet port to which a fluid consumer and a working pressure sensor are connected, wherein a position sensor for detecting a valve position is assigned to the working valve, wherein the fluid consumer is assigned a sensor system for detecting a movement state and wherein the supply pressure sensor, the working pressure sensor and the sensor system are connected to the controller, wherein the controller performs the following steps:
- receiving or determining a set value for a stroke of the working valve;
- determining an actual value for the stroke of the working valve using a sensor signal of the position sensor;
- determining a deviation value for the working valve as a function of sensor signals of the supply pressure sensor, the working pressure sensor, the position sensor and the sensor system;
- and
- performing a processing of the set value for the stroke of the working valve, the actual value for the stroke of the working valve and the deviation value to achieve a control signal for controlling the working valve and providing the control signal to the working valve.
A method for operating a fluid system which comprises a controller, a working valve which can be activated by the controller and which working valve comprises an inlet port to which a fluid outlet and an outlet pressure sensor are connected and which working valve comprises an outlet port to which a fluid consumer and a working pressure sensor are connected, wherein a position sensor for detecting a valve position is assigned to the working valve, the fluid consumer being assigned a sensor system for detecting a movement state, and the outlet pressure sensor, the working pressure sensor and the sensor system being connected to the controller, wherein the controller carries out the following steps:
- receiving or determining a set value for a stroke of the working valve;
- determining an actual value for the stroke of the working valve using a sensor signal from the position sensor;
- determining a deviation value for the working valve as a function of sensor signals from the outlet pressure sensor, the working pressure sensor, the position sensor and the sensor system;
- and
- performing processing of the set value for the stroke of the working valve, the actual value for the stroke of the working valve and the deviation value to achieve a control signal for driving the working valve, and providing the control signal to the working valve.
A fluid system for operating a fluid consumer, having a controller and a working valve which can be activated by the controller, which working valve comprises an inlet port to which a fluid source and a supply pressure sensor or a fluid outlet and an outlet pressure sensor are connected and which comprises an outlet port, to which a fluid consumer and a working pressure sensor are connected and with which a position sensor for detecting a valve position is associated, wherein a sensor system for detecting a movement state is associated with the fluid consumer and wherein the supply pressure sensor is associated with the fluid consumer, the working pressure sensor or the outlet pressure sensor and the sensor system are connected to the controller, the controller being designed to provide a control signal for actuating the working valve as a function of a setpoint conductance and of an actual conductance which is determined using a sensor signal from the position sensor, wherein the controller is designed for a correction of the control signal in dependence on a deviation value for the working valve which is determined from sensor signals of the supply pressure sensor or the outlet pressure sensor, the working pressure sensor, the position sensor and the sensor system.
Dependencies are inferred from the claim text.