# US 11,994,134 B2 · Drive protection and management method of a pressurization system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,994,134 B2 - Document ID: US11994134B2 - Status: Granted - Kind: B2 - Application number: 17/012,459 - Filed: 2020-09-04 - Published: 2021-03-11 - Granted: 2024-05-28 - Earliest claimed: 2020-09-04 - Assignees: Calpeda Spa - Applicants: CALPEDA S.p.A. - Inventors: Tiziana Baroncini; Daniele Frison; Gianluca Marangon; Alberto Marchetti; Damiano Mingardi - Web page: https://patentgrep.com/patent/US11994134B2 ## CPC - F04D 15/0072: {Installation or systems with two or more pumps, wherein the flow path through the stages can be changed, e.g. series-parallel} - F04B 13/00: Pumps specially modified to deliver fixed or variable measured quantities - F04B 17/03: driven by electric motors - F04B 23/04: Combinations of two or more pumps - F04B 49/065: {and making use of computers} - F04B 49/08: Regulating by delivery pressure - F04B 49/20: by changing the driving speed - F04B 51/00: Testing machines, pumps, or pumping installations - F04D 1/00: Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps (adapted for pumping specific fluids F04D7/00; priming or boosting F04D9/00) - F04D 13/06: the pump being electrically driven - F04D 13/12: Combinations of two or more pumps (combinations with priming pumps or booster pumps to counteract vapour-lock F04D9/04) - F04D 15/00: Control, e.g. regulation, of pumps, pumping installations or systems - F04D 15/0066: {by changing the speed, e.g. of the driving engine} - F04D 15/0077: {Safety measures (F04D15/02 takes precedence)} - F04D 15/0088: {Testing machines} - F04D 15/02: Stopping of pumps, or operating valves, on occurrence of unwanted conditions - F04D 15/0245: {responsive to a condition of the pump} - F04D 15/029: {for pumps operating in parallel} - F04B 2205/05: Pressure after the pump outlet - F04B 2205/09: Flow through the pump - F05D 2270/3013: Outlet pressure - F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02) - F04B: POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS (machines for liquids, or pumps, of rotary-piston or oscillating-piston type F04C; non-positive-displacement pumps F04D; pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped F04F) - F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS ## Abstract The disclosure relates to a drive protection and management method of a pressurization system comprising at least two operatively independent hydraulic pumps, the method including setting a plurality of predetermined parameters by a user by means of an electronic control unit at each of the hydraulic pumps, detecting at least one pressure value by means of at least one pressure sensor at a delivery duct of each of the hydraulic pumps, determining a drive in a sequential and/or synchronized manner of the at least two hydraulic pumps by managing and interpolating, independently for each pump, these predetermined parameters and the at least one pressure value at each of the hydraulic pumps by means of each electronic control unit. The disclosure relates to a pressurization system as well, adapted to implement this method. ## Claims ### Claim 1 A method, comprising: setting a plurality of predetermined parameters in a plurality of electronic control units operable to independently control respectively a plurality of hydraulic pumps in a pressurization system, wherein each of the plurality of electronic control units configured at a respective one of the plurality of hydraulic pumps; detecting a plurality of pressure values by means of the at least one pressure sensor at a delivery duct of each of said hydraulic pumps; calculating at least one first derivative of an interpolating function of said plurality of values by means of a respective electronic control unit at each of said hydraulic pumps; and wherein said electronic control units managing and interpolating said predetermined parameters and said interpolating function of said plurality of values at each of said hydraulic pumps and said electronic control units determining a drive in a sequential manner, a synchronized manner, or a combination of a sequential manner and a synchronized manner of said hydraulic pumps. ### Claim 2 (depends on 1) A method according to claim 1, further comprising calibrating said pressurization system, wherein at least one system maximum pressure is defined and set. ### Claim 3 (depends on 1) A method according to claim 1, further comprising defining an operating range which is common to all of the hydraulic pumps of said pressurization system. ### Claim 4 (depends on 1) A method according to claim 1, further comprising generating a temporary index which is typical of each of said hydraulic pumps. ### Claim 5 A pressurization system, comprising: at least two hydraulic pumps; at least one pressure sensor at a delivery duct of each of said hydraulic pumps; and at least two electronic control units configured respectively at said hydraulic pumps and configured to independently control said hydraulic pumps by: setting a plurality of predetermined parameters in a plurality of electronic control units operable to independently control respectively a plurality of hydraulic pumps in a pressurization system, wherein each of the plurality of electronic control units configured at a respective one of the plurality of hydraulic pumps; detecting a plurality of pressure values by means of the at least one pressure sensor at a delivery duct of each of said hydraulic pumps; calculating at least one first derivative of an interpolating function of said plurality of values by means of a respective electronic control unit at each of said hydraulic pumps; and wherein said electronic control units managing and interpolating said predetermined parameters and said interpolating function of said plurality of values at each of said hydraulic pumps and said electronic control units determining a drive in a sequential manner, a synchronized manner, or a combination of a sequential manner and a synchronized manner of said hydraulic pumps. ### Claim 6 (depends on 5) The pressurization system of claim 5, wherein the at least two electronic control units are configured to: set a plurality of user parameters; detect at least one pressure value via said pressure sensor located at a delivery duct of each of the hydraulic pumps; and manage and interpolate said user parameters and said pressure value to determine a manner of driving the at least two hydraulic pumps. ### Claim 7 A method for managing and protecting a pressurization system including at least two hydraulic pumps, comprising: setting a plurality of user parameters in at least two electronic control units configured respectively for the hydraulic pumps and configured to independently control the hydraulic pumps; detecting a plurality of pressure values by at least one pressure sensor at a delivery duct of each of said hydraulic pumps; calculating at least one first derivative of an interpolating function of said plurality of values by a respective electronic control unit at each of said hydraulic pumps; and wherein a drive impulse in a sequential manner, a synchronized manner, or a combination of a sequential manner and a synchronized manner for said hydraulic pumps is determined managing and interpolating said user parameters and said interpolating function of said plurality of values by the respective electronic control unit of each pump. ### Claim 8 (depends on 7) The method of claim 7, further comprising calibrating said pressurization system, wherein at least one system maximum pressure is defined and set. ### Claim 9 (depends on 7) The method of claim 7, further comprising: defining an operating range common to all of the hydraulic pumps of said pressurization system. ### Claim 10 (depends on 7) The method of claim 7 further comprising generating a temporary index which is typical of each of said hydraulic pumps.