# US 2023/0057526 A1 · Ground support cart for charging an electric aircraft and a method of use > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0057526 A1 - Document ID: US20230057526A1 - Status: Published application - Kind: A1 - Application number: 17/405,662 - Filed: 2021-08-18 - Published: 2023-02-23 - Earliest claimed: 2021-08-18 - Assignees: Beta Air, LLC - Applicants: Beta Air, LLC - Inventors: Sarah Kathleen Overfield - Web page: https://patentgrep.com/patent/US20230057526A1 ## CPC - H02J 7/342: {The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging (with circuits for polarity protection H02J7/68)} - B64D 37/32: Safety measures not otherwise provided for, e.g. preventing explosive conditions - B64F 1/352: {Mobile units} - H01M 10/443: {in response to temperature} - H01M 10/613: Cooling or keeping cold - H01M 10/625: Vehicles - H01M 10/6557: arranged between the cells - H02J 7/44: between battery management systems and power sources - H02J 7/65: against overtemperature - H02J 7/70: characterised by the mechanical construction - H02J 7/977: {of the battery} - B64U 50/19: using electrically powered motors - H02J 2105/32: {for aircrafts} - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT - B64F: GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - B64U: UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract Certain aspects relate to a ground support cart for charging an electric aircraft. An exemplary ground support cart includes a frame, at least a wheel operatively coupled to the frame and configured to facilitate rolling translation of the ground support cart, a cart battery mounted to the frame and configured to provide a first electrical charging current, a conductor in electric communication with the at least a cart battery, a coolant source mounted to the frame and configured to provide a coolant flow, a hose in fluidic communication with the coolant source, and a controller configured to control the first electrical charging current within the conductor and the coolant flow within the hose. ## Claims ### Claim 1 A ground support cart for charging an electric aircraft, the ground support cart comprising: a frame; at least a ground interface operatively coupled to the frame and configured to facilitate translation of the ground support cart; a cart battery mounted to the frame and configured to provide a first electrical charging current; a conductor in electric communication with the at least a cart battery; a coolant source mounted to the frame and configured to provide a coolant flow; a hose in fluidic communication with the coolant source; and a controller configured to control: the first electrical charging current within the conductor; and the coolant flow within the hose. ### Claim 2 (depends on 1) The ground support cart of claim 1, wherein the coolant source is further configured to transfer heat between coolant of the coolant flow and an ambient air; and the controller is further configured to control a temperature of the coolant. ### Claim 3 (depends on 2) The ground support cart of claim 2, wherein the controller is further configured to control the temperature of the coolant within a temperature range below an ambient air temperature. ### Claim 4 (depends on 1) The ground support cart of claim 1 further comprising an alternating current to direct current converter configured to convert a second electrical charging current from an alternating current. ### Claim 5 (depends on 1) The ground support cart of claim 1, wherein the coolant flow substantially comprises air. ### Claim 6 (depends on 5) The ground support cart of claim 5, wherein the coolant flow has a rate within a range from about 0.1 CFM to about 100 CFM. ### Claim 7 (depends on 1) The ground support cart of claim 1 further comprising a connector configured to connect to a port of the electric aircraft, wherein the connector comprises: a distal portion of the conductor configured to be in electrical communication with the port when the connector is connected to the port; and a distal portion of the hose configured to be in fluidic communication with the port when the connector is connected to the port. ### Claim 8 (depends on 1) The ground support cart of claim 1, wherein the controller comprises a sensor interface configured to receive a battery sensor signal; and the controller is further configured to control one or more of the first electrical charging current and the coolant flow as a function of the battery sensor signal. ### Claim 9 (depends on 8) The ground support cart of claim 8, wherein the battery sensor signal represents battery temperature. ### Claim 10 (depends on 8) The ground support cart of claim 8, wherein the battery sensor signal represents battery cell swell. ### Claim 11 A method of charging an electric aircraft with a ground support cart, the method comprising: facilitating, using at least a ground interface operatively coupled to a frame, translation of the ground support cart; providing, using a cart battery mounted to the frame, a first electrical charging current; providing, using a coolant source mounted to the frame, a coolant flow; and controlling, using a controller: the first electrical charging current within a conductor in electric communication with the cart battery; and the coolant flow within a hose in fluidic communication with the coolant source. ### Claim 12 (depends on 11) The method of claim 11 further comprising: transferring heat, using the coolant source, between coolant of the coolant flow and an ambient air; and controlling, using the controller, a temperature of the coolant. ### Claim 13 (depends on 12) The method of claim 12 further comprising controlling, using the controller, the temperature of the coolant within a temperature range below an ambient air temperature. ### Claim 14 (depends on 11) The method of claim 11 further comprising converting, using an alternating current to direct current converter, a second electrical charging current from an alternating current. ### Claim 15 (depends on 11) The method of claim 11, wherein the coolant flow substantially comprises air. ### Claim 16 (depends on 15) The method of claim 15, wherein the coolant flow has a rate within a range from about 0.1 CFM to about 100 CFM. ### Claim 17 (depends on 11) The method of claim 11 further comprising connecting, using a connector, to a port of the electric aircraft, wherein the connector comprises: a distal portion of the conductor configured to be in electrical communication with the port when the connector is connected to the port; and a distal portion of the hose configured to be in fluidic communication with the port when the connector is connected to the port. ### Claim 18 (depends on 11) The method of claim 11 further comprising: receiving, using a sensor interface of the controller, an aircraft battery sensor signal; and controlling, using the controller, one or more of the first electrical charging current and the coolant flow as a function of the aircraft battery sensor signal. ### Claim 19 (depends on 18) The method of claim 18, wherein the aircraft battery sensor signal represents battery temperature. ### Claim 20 (depends on 18) The method of claim 18, wherein the battery sensor signal represents battery cell swell.