# US 12,214,675 B2 · System and method for dynamic excitation of an energy storage element configured for use in an electric aircraft > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,214,675 B2 - Document ID: US12214675B2 - Status: Granted - Kind: B2 - Application number: 18/384,194 - Filed: 2023-10-26 - Published: 2024-02-15 - Granted: 2025-02-04 - Earliest claimed: 2021-06-15 - Assignees: Beta Air, LLC - Applicants: Beta Air LLC - Inventors: Herman Wiegman; Steven J. Foland - Web page: https://patentgrep.com/patent/US12214675B2 ## CPC - B60L 3/04: Cutting off the power supply under fault conditions (protective devices and circuit arrangements in general H01H; H02H) - B60L 50/60: using power supplied by batteries (in combination with fuel cells B60L50/75) - B60L 58/12: responding to state of charge [SoC] - B60L 58/21: having the same nominal voltage - B64D 27/34: All-electric aircraft - B64D 27/357: using batteries - H01M 50/528: Fixed electrical connections, i.e. not intended for disconnection - B60L 2200/10: Air crafts - B60L 2220/42: with use of more than one motor - B60L 2240/54: related to batteries - B60L 2250/16: by display - B64C 29/0025: {the propellers being fixed relative to the fuselage} - B64D 2221/00: Electric power distribution systems onboard aircraft - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - Y02T 50/60: Efficient propulsion technologies, e.g. for aircraft - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - B64C: AEROPLANES; HELICOPTERS - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A system for dynamic excitation of an energy storage element configured for use in an electric aircraft includes a plurality of propulsors mechanically connected to the electric aircraft. The system includes a plurality of energy storage elements electrically connected to the plurality of propulsors. The system includes a bus element, wherein the bus element is electrically connected to the plurality of energy storage elements and a cross tie element connected to the bus element configured to disconnect a first energy storage element from a second energy storage element. The system includes a modulator unit electrically connected to the bus element configured to modulate a first electrical command to the first energy storage element and a second electrical command to the second energy storage element. The system includes at least a sensor configured to detect an energy datum corresponding to the first energy storage element as a function of the modulation. ## Claims ### Claim 1 An aircraft comprising: a plurality of propulsors mechanically connected to the aircraft, each of the plurality of propulsors including an electric propulsion motor; a first energy storage element and a second energy storage element electrically connected to the plurality of propulsors; a bus element, wherein the bus element is electrically connected to the first energy storage element and the second energy storage element; and a cross tie element, the cross tie element connected to the bus element and configured to disconnect the first energy storage element from the second energy storage element, wherein the first energy storage element is electrically connected to a first propulsor of the plurality of propulsors and the second energy storage element is electrically connected to a second propulsor of the plurality of propulsors. ### Claim 2 (depends on 1) The aircraft of claim 1, wherein the cross tie element comprises at least a switch. ### Claim 3 (depends on 1) The aircraft of claim 1, wherein the first energy storage element or the second energy storage element comprises a battery module. ### Claim 4 (depends on 1) The aircraft of claim 1, further comprising a modulator unit electrically connected to the bus element, the modulator unit configured to modulate a first electrical command to the first propulsor and a second electrical command to the second propulsor. ### Claim 5 (depends on 4) The aircraft of claim 4, wherein modulating the first electrical command and the second electrical command comprises drawing electrical energy from the first energy storage element. ### Claim 6 (depends on 4) The aircraft of claim 4, wherein the modulator unit is further configured to measure at least an electrical parameter as a function of the modulation of the first electrical command. ### Claim 7 (depends on 6) The aircraft of claim 6, wherein measuring the electrical parameter further comprises detecting a change in the electrical parameter. ### Claim 8 (depends on 4) The aircraft of claim 4, further comprising a sensor configured to detect an energy datum corresponding to the first energy storage element as a function of the modulation. ### Claim 9 (depends on 1) The aircraft of claim 1, wherein the bus element comprises a ring bus. ### Claim 10 (depends on 1) The aircraft of claim 1, wherein the cross tie element is configured to: receive a datum from at least a sensor; and disconnect the first energy storage element from the second energy storage element as a function of the datum. ### Claim 11 A method for dynamic excitation of an energy storage element configured for use in an aircraft, the method comprising: disconnecting, by a cross tie element connected to a bus element, a first energy storage element electrically connected to the bus element from a second energy storage element electrically connected to the bus element, wherein the first energy storage element is electrically connected to a first propulsor that includes a first electric propulsion motor and the second energy storage element is electrically connected to a second propulsor that includes a second electric propulsion motor. ### Claim 12 (depends on 11) The method of claim 11, wherein the cross tie element comprises a switch. ### Claim 13 (depends on 11) The method of claim 11, wherein the energy storage element comprises a battery module. ### Claim 14 (depends on 11) The method of claim 11, further comprising modulating, by a modulator unit, a first electrical command to the first propulsor and a second electrical command to the second propulsor. ### Claim 15 (depends on 14) The method of claim 14, wherein the modulator unit comprises a processor. ### Claim 16 (depends on 14) The method of claim 14, wherein modulating the first electrical command and the second electrical command comprises drawing electrical energy from the first energy storage element. ### Claim 17 (depends on 14) The method of claim 14, wherein the modulator unit is further configured to measure at least an electrical parameter as a function of the modulation of the first electrical command. ### Claim 18 (depends on 14) The method of claim 14, further comprising a sensor configured to detect an energy datum corresponding to the first energy storage element as a function of the modulation. ### Claim 19 (depends on 17) The method of claim 17, wherein measuring the electrical parameter further comprises detecting a change in the electrical parameter. ### Claim 20 (depends on 11) The method of claim 11, wherein the cross tie element is configured to: receive a datum from at least a sensor; and disconnect the first energy storage element from the second energy storage element as a function of the datum.