# US 11,999,256 B2 · Systems and methods for a battery management system integrated in a battery pack configured for use in electric aircraft > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,999,256 B2 - Document ID: US11999256B2 - Status: Granted - Kind: B2 - Application number: 18/137,828 - Filed: 2023-04-21 - Published: 2023-09-07 - Granted: 2024-06-04 - Earliest claimed: 2020-12-01 - Assignees: Beta Air, LLC - Applicants: Beta Air, LLC - Inventors: Braedon Andrew Lohe; Cullen Forrest Jemison; Andrew Joseph Giroux - Web page: https://patentgrep.com/patent/US11999256B2 ## CPC - B60L 3/0038: {relating to sensors} - B60L 58/12: responding to state of charge [SoC] - B60L 3/0046: {relating to electric energy storage systems, e.g. batteries or capacitors} - B60L 3/0092: {with use of redundant elements for safety purposes} - B60L 58/10: for monitoring or controlling batteries - B60L 58/18: of two or more battery modules - H01M 10/425: {Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00)} - H01M 10/48: Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569) - H02J 7/40: characterised by the exchange of charge or discharge related data - H02J 7/50: acting upon multiple batteries simultaneously or sequentially - H02J 7/60: including safety or protection arrangements - H02J 7/80: including monitoring or indicating arrangements - B60L 2200/10: Air crafts - B60L 2240/545: Temperature - B60L 2240/547: Voltage - B60L 2240/549: Current - B60L 2240/70: Interactions with external data bases, e.g. traffic centres - B60L 2250/16: by display - B60L 2260/32: Auto pilot mode - H01M 2010/4271: {Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing} - H01M 2010/4278: {Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller} - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - H02J 7/84: Control of state of health [SOH] - H02J 2105/32: {for aircrafts} - 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 - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY ## Abstract A battery management and monitoring system integrated in a battery pack configured for use in electric aircraft. The system includes a sensor suite configured to measure a plurality of battery pack data. The system includes a battery monitoring component configured to detect a first fault in the battery pack and produce a first fault detection response notifying a user of the first fault in the battery pack. The system includes a battery management component configured to detect a second fault in the battery pack and produce a second fault detection response configured to mitigate the second fault in the battery pack. The system includes an interlock component having a first mode and a second mode, configured to enable the battery monitoring component and disable the battery management component when in the first mode and enable the battery management component and disable the battery monitoring component when in the second mode. ## Claims ### Claim 1 A battery management and monitoring system for a battery pack configured for use in an electric aircraft, the system comprising: a sensor suite configured to measure a plurality of battery pack data; a battery management component in communication with the sensor suite, wherein the battery management component is configured to: detect a fault in the battery pack based on the plurality of battery back data, and produce a fault detection response mitigating the fault in the battery pack; and an interlock component operatively coupled to the battery management component, wherein, while the battery pack is charging, the interlock component is configured to selectively enable the battery management component to produce the fault detection response, and wherein the interlock component is configured to selectively disable the battery management component during operation of the electric aircraft. ### Claim 2 (depends on 1) The system of claim 1, wherein the fault detection response mitigates an over-voltage condition of the battery pack. ### Claim 3 (depends on 1) The system of claim 1, wherein the fault detection response mitigates an under-voltage condition of the battery pack. ### Claim 4 (depends on 1) The system of claim 1, wherein the fault detection response mitigates an increase in temperature of the battery pack. ### Claim 5 (depends on 1) The system of claim 1, wherein the fault detection response mitigates a charging difference within the battery pack. ### Claim 6 (depends on 1) The system of claim 1, wherein the battery management component is configured to redirect current around a portion of the battery pack. ### Claim 7 (depends on 1) The system of claim 1, wherein the battery management component comprises a contactor control circuit configured to electrically switch an electrical power circuit of the battery pack. ### Claim 8 (depends on 7) The system of claim 7, wherein the fault detection response comprises controlling the contactor control circuit to selectively disengage a portion of the battery pack. ### Claim 9 (depends on 7) The system of claim 7, wherein the interlock component comprises a geometry provision configured to block the contactor control circuit of the battery management component when the battery pack is installed in the electric aircraft. ### Claim 10 (depends on 1) The system of claim 1, wherein the sensor suite is configured to detect a cell failure of a battery cell of the battery pack. ### Claim 11 (depends on 1) The system of claim 1, further comprising a battery monitoring component in communication with the sensor suite and configured to: detect the fault in the battery pack during operation of the electric aircraft; and produce a notification of the fault detected in the battery pack. ### Claim 12 (depends on 11) The system of claim 11, wherein the notification comprises a warning message indicating the fault of the battery pack. ### Claim 13 (depends on 11) The system of claim 11, wherein the notification comprises an image depicting a portion of the battery pack in which the fault is detected. ### Claim 14 (depends on 11) The system of claim 11, wherein the interlock component is configured to selectively enable the battery monitoring component to produce the notification of the fault. ### Claim 15 (depends on 14) The system of claim 14, wherein the interlock component is configured to transition between a first mode which enables the battery monitoring component, and a second mode which disables the battery monitoring component. ### Claim 16 (depends on 15) The system of claim 15, wherein the interlock component is configured to disable the battery management component in the first mode, and to enable the battery management component in the second mode. ### Claim 17 (depends on 1) The system of claim 1, further comprising a data collection system configured to save the plurality of battery pack data to a data storage device. ### Claim 18 (depends on 1) The system of claim 1, wherein the interlock component comprises a mechanical component that is configured to be physically interacted with by a user. ### Claim 19 A system comprising: an electric aircraft; a battery pack configured for use in the electric aircraft; a sensor suite in communication with the battery pack, wherein the sensor suite is configured to measure a plurality of battery pack data, and to detect a cell failure of a battery cell of the battery pack; a battery monitoring component in communication with the sensor suite, wherein the battery management component is configured to detect a fault in the battery pack during operation of the electric aircraft, and produce a notification of the fault detected in the battery pack; a battery management component in communication with the sensor suite, wherein the battery management component is configured to detect a fault in the battery pack based on the plurality of battery pack data, and produce a fault detection response mitigating the fault in the battery pack; and an interlock component operatively coupled to the battery management component, wherein the interlock component is configured to: during operation of the electric aircraft, selectively enable the battery monitoring component and selectively disable the battery management component; and while the battery pack is charging, selectively disable the battery monitoring component and selectively enable the battery management component. ### Claim 20 A battery management and monitoring system for a battery pack configured for use in an electric aircraft, the system comprising: a sensor suite configured to measure a plurality of battery pack data; a battery management component in communication with the sensor suite, wherein the battery management component is configured to: detect a fault in the battery pack based on the plurality of battery back data, and produce a fault detection response mitigating the fault in the battery pack; and an interlock component operatively coupled to the battery management component, wherein, while the battery pack is charging, the interlock component is configured to selectively enable the battery management component to produce the fault detection response, and wherein the battery management component comprises a contactor control circuit configured to electrically switch an electrical power circuit of the battery pack.