# US 11,897,346 B2 · Electrical motor power control systems > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,897,346 B2 - Document ID: US11897346B2 - Status: Granted - Kind: B2 - Application number: 17/321,177 - Filed: 2021-05-14 - Published: 2021-11-18 - Granted: 2024-02-13 - Earliest claimed: 2020-05-15 - Assignees: Hamilton Sundstrand Corporation - Applicants: Hamilton Sundstrand Corporation - Inventors: Kyle Stephen Ives; John N. Buzzard - Web page: https://patentgrep.com/patent/US11897346B2 ## CPC - H02J 7/855: {with circuits adapted for supplying loads from the battery} - B60L 50/52: characterised by DC-motors - B60L 50/60: using power supplied by batteries (in combination with fuel cells B60L50/75) - B60L 58/12: responding to state of charge [SoC] - B64D 27/33: Hybrid electric aircraft - B64D 27/34: All-electric aircraft - B64D 27/357: using batteries - B64D 31/16: for electric power plants - B64D 31/18: for hybrid-electric power plants - H02J 7/96: in response to battery voltage - B60L 2200/10: Air crafts - B60L 2240/421: Speed - B60L 2240/423: Torque - B60L 2240/427: Voltage - B60L 2240/429: Current - B60L 2240/547: Voltage - B60L 2240/549: Current - B64D 2221/00: Electric power distribution systems onboard aircraft - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - Y02T 50/50: On board measures aiming to increase energy efficiency - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - 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 - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A control system for an electric motor powered by a battery can be configured to receive an input instantaneous power or torque command corresponding to a commanded instantaneous power or torque. The control system can be configured to determine if the battery is capable of supplying the commanded instantaneous power or torque based on a state of charge (SOC) of the battery. The control system can be configured such that if the battery is capable of supplying the commanded instantaneous power or torque, the control system outputs the input instantaneous power or torque command, and such that if the battery is not capable of supplying the commanded instantaneous power or torque, the control system outputs an available maximum instantaneous power or torque command corresponding to an available maximum instantaneous power or torque that is less than the commanded instantaneous power or torque. ## Claims ### Claim 1 A control system for an electric motor powered by a battery, configured to receive an input instantaneous power or torque command corresponding to a commanded instantaneous power or torque, wherein the control system is configured to determine if the battery is capable of supplying and/or permitted to supply the commanded instantaneous power or torque based on a state of charge (SOC) of the battery, wherein the control system is configured such that if the battery is capable of supplying and/or permitted to supply the commanded instantaneous power or torque, the control system outputs the input instantaneous power or torque command, and wherein the control system is configured such that if the battery is not capable of supplying and/or not permitted to supply the commanded instantaneous power or torque, the control system outputs an available maximum instantaneous power or torque command corresponding to an available maximum instantaneous power or torque that is less than the commanded instantaneous power or torque. ### Claim 2 (depends on 1) The control system of claim 1, wherein the control system includes a comparison module configured to receive the available maximum instantaneous power or torque and to receive the input instantaneous power or torque command, and to determine whether to output the input instantaneous power or torque command or to output the available maximum instantaneous power or torque command. ### Claim 3 (depends on 2) The control system of claim 2, wherein the comparison module is configured to output the input instantaneous power or torque command if the commanded instantaneous power or torque is less than the available maximum power or torque, wherein the comparison module is configured to output the available maximum instantaneous power or torque command if the commanded instantaneous power or torque is greater than the available maximum power or torque. ### Claim 4 (depends on 2) The control system of claim 2, wherein the control system includes a battery model module operatively connected to the comparison module and configured to receive an SOC of the battery and to determine the available maximum instantaneous power or torque based on a state of charge (SOC) of the battery, the battery model module configured to output the available maximum instantaneous power or torque to the comparison module. ### Claim 5 (depends on 2) The control system of claim 2, wherein the input instantaneous power or torque command is an input torque command, wherein the system further includes a power draw module configured to receive an input torque command and a motor speed, and to output an input power command to the comparison module. ### Claim 6 (depends on 5) The control system of claim 5, further comprising a motor control module operatively connected to the comparison module to receive either the input power command or the available maximum power command, and to receive a motor speed, and wherein the motor control module is configured to control the electric motor to output a torque. ### Claim 7 A hybrid electric or fully electric aircraft powerplant, comprising: an electric motor powered by a battery; and a control system configured to provide power to the electric motor, the control system configured to receive an input instantaneous power or torque command corresponding to a commanded instantaneous power or torque, wherein the control system is configured to determine if the battery is capable of supplying and/or permitted to supply the commanded instantaneous power or torque based on a state of charge (SOC) of the battery, wherein the control system is configured such that if the battery is capable of supplying and/or permitted to supply the commanded instantaneous power or torque, the control system outputs the input instantaneous power or torque command, and wherein the control system is configured such that if the battery is not capable of supplying and/or not permitted to supply the commanded instantaneous power or torque, the control system outputs an available maximum instantaneous power or torque command corresponding to an available maximum instantaneous power or torque that is less than the commanded instantaneous power or torque. ### Claim 8 (depends on 7) The hybrid electric or fully electric aircraft powerplant of claim 7, wherein control system includes a comparison module configured to receive the available maximum instantaneous power or torque and to receive the input instantaneous power or torque command, and to determine whether to output the input instantaneous power or torque command or to output the available maximum instantaneous power or torque command. ### Claim 9 (depends on 8) The hybrid electric or fully electric aircraft powerplant of claim 8, wherein the comparison module is configured to output the input instantaneous power or torque command if the commanded instantaneous power or torque is less than the available maximum power or torque, wherein the comparison module is configured to output the available maximum instantaneous power or torque command if the commanded instantaneous power or torque is greater than the available maximum power or torque. ### Claim 10 (depends on 9) The hybrid electric or fully electric aircraft powerplant of claim 9, wherein the control system includes a battery model module operatively connected to the comparison module and configured to receive an SOC of the battery and to determine the available maximum instantaneous power or torque based on a state of charge (SOC) of the battery, the battery model module configured to output the available maximum instantaneous power or torque to the comparison module. ### Claim 11 (depends on 9) The hybrid electric or fully electric aircraft powerplant of claim 9, wherein the input instantaneous power or torque command is an input torque command, wherein the system further includes a power draw module configured to receive an input torque command and a motor speed, and to output an input power command to the comparison module. ### Claim 12 (depends on 11) The hybrid electric or fully electric aircraft powerplant of claim 11, further comprising a motor control module operatively connected to the comparison module to receive either the input power command or the available maximum power command, and to receive a motor speed, and wherein the motor control module is configured to control the electric motor to output a torque. ### Claim 13 A non-transitory computer readable medium having computer executable instructions configured to cause a computer to perform a method, the method comprising: receiving an input instantaneous power or torque command corresponding to a commanded instantaneous power or torque; determining if a battery is capable of supplying and/or permitted to supply the commanded instantaneous power or torque based on a state of charge (SOC) of the battery, wherein if the battery is capable of supplying and/or permitted to supply the commanded instantaneous power or torque, controlling a motor control module or an electric motor to cause the electric motor to output the commanded instantaneous power or torque, and wherein if the battery is not capable of supplying and/or not permitted to supply the commanded instantaneous power or torque, controlling the motor control module or the electric motor to cause the electric motor to output an available maximum instantaneous power or torque that is less than the commanded instantaneous power or torque.