# US 2025/0155901 A1 · Dosing method and solenoid valve for carrying out a dosing method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0155901 A1 - Document ID: US20250155901A1 - Status: Published application - Kind: A1 - Application number: 18/941,705 - Filed: 2024-11-08 - Published: 2025-05-15 - Earliest claimed: 2023-11-10 - Assignees: Festo AG & Co. - Applicants: Festo SE & Co. KG - Inventors: Andreas BÜHLER; Tobias WATZER; Jens ENGELHARDT - Web page: https://patentgrep.com/patent/US20250155901A1 ## CPC - G05D 7/0635: {by action on throttling means (G05D7/0688, G05D7/0694 take precedence)} - F16K 31/06: using a magnet {, e.g. diaphragm valves, cutting off by means of a liquid} - F16K 31/0675: {Electromagnet aspects, e.g. electric supply therefor} - G01F 11/38: for liquid or semiliquid - G01F 13/006: {measuring volume in function of time} - G05D: SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES - F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)} - G01F: MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME ## Abstract A dosing method for carrying out at least one dosing operation, including the steps: providing a switching signal to or from a valve control, providing a coil current from the valve control to a magnetic drive in dependence on the switching signal, in which the magnetic drive is configured to move a valve member of a solenoid valve between a normal position and a functional position, determining a first start of movement of the valve member from the normal position to the functional position, determining an operating duration between the provision of the coil current and the first start of movement, determining a providing duration for the switching signal. The provision of the coil current is carried out over a coil current duration which corresponds to a sum of the providing duration and the operating duration. ## Claims ### Claim 1 A dosing method for carrying out at least one dosing operation, comprising the steps: providing a switching signal to or from a valve control, providing a coil current from the valve control to a magnetic drive in dependence on the switching signal, wherein the magnetic drive is configured to move a valve member of a solenoid valve between a normal position and a functional position, determining a first start of movement of the valve member from the normal position to the functional position, determining an operating duration between the provision of the coil current and the first start of movement, determining a providing duration for the switching signal, wherein the provision of the coil current is carried out over a coil current duration which corresponds to a sum of the providing duration and the operating duration. ### Claim 2 (depends on 1) The dosing method according to claim 1, wherein after the end of the provision of the coil current, a second start of movement of the valve member from the functional position to the normal position is determined and a turn-off duration between the end of the provision of the coil current and the second start of movement of the dosing process is determined. ### Claim 3 (depends on 2) The dosing method according to claim 2, wherein the turn-off duration is averaged with at least one stored turn-off duration of a past dosing operation. ### Claim 4 (depends on 2) The dosing method according to claim 2, wherein, in a subsequent dosing process, the provision of the coil current from the valve control to the magnetic drive is delayed by the turn-off duration from the point in time of the provision of the switching signal to or from the valve control, wherein the coil current duration is reduced by the turn-off duration. ### Claim 5 (depends on 1) The dosing method according to claim 1, wherein the first start of movement is determined on the basis of a profile of the coil current provided to the magnetic drive. ### Claim 6 (depends on 1) The dosing method according to claim 1, wherein the switching signal is provided to the valve control by a controller that is higher-level than the valve control. ### Claim 7 (depends on 1) The dosing method according to claim 1, wherein the providing duration is in each case compared with a plurality of individual providing durations of a plurality of individual preceding dosing operations, wherein the switching signal is provided to the valve control for the duration of an average value of the individual providing durations of the preceding dosing operations if there are in each case small differences between the providing duration and the individual providing durations of the preceding dosing operations. ### Claim 8 A solenoid valve comprising: a valve control, a magnetic drive, and a valve member, is wherein the solenoid valve is configured to carry out a dosing method for carrying out at least one dosing operation, comprising the steps: providing a switching signal to or from a valve control, providing a coil current from the valve control to a magnetic drive in dependence on the switching signal, wherein the magnetic drive is configured to move a valve member of a solenoid valve between a normal position and a functional position, determining a first start of movement of the valve member from the normal position to the functional position, determining an operating duration between the provision of the coil current and the first start of movement, determining a providing duration for the switching signal, wherein the provision of the coil current is carried out over a coil current duration which corresponds to a sum of the providing duration and the operating duration. ### Claim 9 (depends on 8) The solenoid valve according to claim 8, wherein the valve control is positioned in a connecting cable positioned on the solenoid valve or in the solenoid valve. ### Claim 10 (depends on 8) The solenoid valve according to claim 8, wherein the valve control comprises a permanent voltage supply. ### Claim 11 (depends on 1) The dosing method according to claim 1, wherein the first start of movement is determined on the basis of at least one sensor signal from at least one sensor. ### Claim 12 (depends on 11) The dosing method according to claim 11, wherein the first start of movement is determined on the basis of at least one sensor signal from a pressure sensor assigned to the solenoid valve. ### Claim 13 (depends on 11) The dosing method according to claim 11, wherein the first start of movement is determined on the basis of at least one sensor signal from a flow sensor assigned to the solenoid valve. ### Claim 14 (depends on 8) The solenoid valve according to claim 8, wherein the valve control comprises a switching signal input.