# US 2024/0200724 A1 · Mobility and Method for Controlling Operation Thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2024/0200724 A1 - Document ID: US20240200724A1 - Status: Published application - Kind: A1 - Application number: 18/357,754 - Filed: 2023-07-24 - Published: 2024-06-20 - Earliest claimed: 2022-12-15 - Assignees: Hyundai Motor Company; Kia Corporation - Applicants: Hyundai Motor Company; Kia Corporation - Inventors: Se Kwon Jung - Web page: https://patentgrep.com/patent/US20240200724A1 ## CPC - F17C 5/007: {for individual gas tanks or containers, e.g. in vehicles (filling with liquid fuel not under pressure, B60S5/02, B67D7/00)} - B60L 50/72: Constructional details of fuel cells specially adapted for electric vehicles - B60L 58/12: responding to state of charge [SoC] - B60L 58/30: for monitoring or controlling fuel cells - B60L 58/40: for controlling a combination of batteries and fuel cells - H01M 8/04201: {Reactant storage and supply, e.g. means for feeding, pipes} - H01M 8/04753: {of fuel cell reactants} - H01M 8/04925: {Power, energy, capacity or load} - H01M 16/003: {of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers} - H01M 16/006: {of fuel cells with rechargeable batteries} - B60L 2240/40: Drive Train control parameters - B60L 2250/16: by display - F17C 2221/012: Hydrogen - F17C 2250/03: Control means - F17C 2250/0626: Pressure - F17C 2260/02: Improving properties related to fluid or fluid transfer - F17C 2265/065: for refuelling vehicle fuel tanks - F17C 2270/0168: by vehicles - F17C 2270/0184: Fuel cells - H01M 2250/20: Fuel cells in motive systems, e.g. vehicle, ship, plane - F17C: VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES (storing fluids in natural or artificial cavities or chambers in the earth B65G5/00; construction or assembling of bulk storage containers employing civil-engineering techniques E04H7/00; variable-capacity gas-holders F17B; liquefaction or refrigeration machines, plants, or systems F25) - 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 - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY ## Abstract A mobility includes a storage vessel, a power train configured to generate power using liquid hydrogen stored in the storage vessel, and a control device configured to downwardly adjust a target operating pressure of the storage vessel at a time of entering a refueling preparation mode, compare a supply pressure of the liquid hydrogen supplied to the power train with a target hydrogen supply pressure according to the target operating pressure, and limit the power of the power train in response to the supply pressure of the liquid hydrogen being less than the target hydrogen supply pressure. ## Claims ### Claim 1 A mobility comprising: a storage vessel; a power train configured to generate power using liquid hydrogen stored in the storage vessel; and a control device configured to: downwardly adjust a target operating pressure of the storage vessel at a time of entering a refueling preparation mode; compare a supply pressure of the liquid hydrogen supplied to the power train with a target hydrogen supply pressure according to the target operating pressure; and limit the power of the power train in response to the supply pressure of the liquid hydrogen being less than the target hydrogen supply pressure. ### Claim 2 (depends on 1) The mobility of claim 1, wherein the control device is configured to enter the refueling preparation mode in response to a destination of the mobility being set to a hydrogen refueling station or a switch to which a function of enabling and disabling the refueling preparation mode is allocated being turned on. ### Claim 3 (depends on 1) The mobility of claim 1, wherein the control device is configured to enter the refueling preparation mode in response to an intention of a user to agree to enter the refueling preparation mode being identified. ### Claim 4 (depends on 1) The mobility of claim 1, wherein the control device is configured to limit a maximum power of the power train based on a mapping table in which a power limit target value of the power train according to the supply pressure of the liquid hydrogen is defined. ### Claim 5 (depends on 1) The mobility of claim 1, wherein the control device is configured to exit the refueling preparation mode in response to a state of charge (SOC) of the storage vessel being greater than or equal to a predetermined reference value. ### Claim 6 A mobility comprising: a storage vessel; a power train configured to generate power using liquid hydrogen stored in the storage vessel; an auxiliary power train configured to assist the power train to supply the power; and a control device configured to: downwardly adjust a target operating pressure of the storage vessel at a time of entering a refueling preparation mode; determine a target hydrogen supply pressure according to the target operating pressure; and limit the power of the power train in response to a supply pressure of the liquid hydrogen supplied to the power train being less than the target hydrogen supply pressure and a state of charge (SOC) of the auxiliary power train being higher than an operating lower limit. ### Claim 7 (depends on 6) The mobility of claim 6, wherein the control device is configured to enter the refueling preparation mode in response to a destination of the mobility being set to a hydrogen refueling station or a switch to which a function of enabling and disabling the refueling preparation mode is allocated being turned on. ### Claim 8 (depends on 6) The mobility of claim 6, wherein the control device is configured to enter the refueling preparation mode in response to an intention of a user to agree to enter the refueling preparation mode being identified. ### Claim 9 (depends on 6) The mobility of claim 6, wherein the control device is configured to limit a maximum power of the power train based on a mapping table in which a power limit target value of the power train according to the supply pressure of the liquid hydrogen is defined. ### Claim 10 (depends on 6) The mobility of claim 6, wherein the control device is configured to exit the refueling preparation mode in response to the SOC of the storage vessel being greater than or equal to a predetermined reference value. ### Claim 11 (depends on 10) The mobility of claim 10, wherein the control device is configured to exit the refueling preparation mode in response to an intention of a user to agree to exit the refueling preparation mode being identified. ### Claim 12 (depends on 6) The mobility of claim 6, wherein the control device is configured to output information indicating that the power of the power train is limited using a user interface device. ### Claim 13 (depends on 6) The mobility of claim 6, wherein the auxiliary power train comprises a battery or a supercapacitor. ### Claim 14 A method for controlling an operation of a mobility, the method comprising: downwardly adjusting a target operating pressure of a storage vessel in the mobility at a time of entering a refueling preparation mode; comparing a supply pressure of hydrogen supplied to a power train in the mobility with a target hydrogen supply pressure according to the target operating pressure; and limiting power of the power train in response to the supply pressure of the hydrogen being less than the target hydrogen supply pressure. ### Claim 15 (depends on 14) The method of claim 14, further comprising entering the refueling preparation mode in response to a destination of the mobility being set to a hydrogen refueling station or a switch to which a function of enabling and disabling the refueling preparation mode is allocated being turned on. ### Claim 16 (depends on 14) The method of claim 14, further comprising entering the refueling preparation mode in response to an intention of a user to agree to enter the refueling preparation mode being identified. ### Claim 17 (depends on 14) The method of claim 14, wherein limiting the power of the power train comprises limiting a maximum power of the power train based on a mapping table in which a power limit target value of the power train according to the supply pressure of the hydrogen is defined. ### Claim 18 (depends on 14) The method of claim 14, wherein limiting the power of the power train comprises: identifying whether a state of charge (SOC) of an auxiliary power train in the mobility is less than or equal to an operating lower limit, wherein the auxiliary power train assists the power train to supply the power; releasing the refueling preparation mode in response to the SOC of the auxiliary power train being less than or equal to the operating lower limit; and limiting the power of the power train in response to the SOC of the auxiliary power train being greater than the operating lower limit. ### Claim 19 (depends on 14) The method of claim 14, further comprising exiting the refueling preparation mode in response to a state of charge (SOC) of the storage vessel being greater than or equal to a predetermined reference value. ### Claim 20 (depends on 14) The method of claim 14, further comprising exiting the refueling preparation mode in response to an intention of a user to agree to exit the refueling preparation mode being identified.