IP Library › Granted Patent US 11,688,889
Granted Patent B2
US 11,688,889 · App. 17/523,309 · Granted Jun 27, 2023

Monitoring system and method for charging multiple battery packs in an electric aircraft

Inventor: Herman Wiegman (South Burlington, VT)
Assignee: BETA AIR, LLC
H01M10/425B60L50/64G01R31/3648G01R31/382G01R31/392H01M50/249H02J7/0047B60L2200/10H01M2010/4271H01M2220/20
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Quick Facts
Patent No.
US 11,688,889
App. No.
17/523,309
Granted
Jun 27, 2023
Kind
B2
Abstract

A monitoring system and method for charging multiple battery packs in an electric aircraft is illustrated. The system includes a plurality of submodules, a power bus element, and a computing device. The plurality of battery submodules is coupled to the electric aircraft and each battery submodules comprises a battery management component which comprises a sensor to detect a health metric. The power bus element is electrically connected to each battery submodule of the plurality of battery submodules. A computing device is connected at each battery submodule and is configured to receive the health metric form the sensor, determine a charging status of the battery submodule as a function of the health metric, and charge the battery submodules using the power bus element as a function of the charging status.

Claims (36)

1. A monitoring system for charging multiple battery packs in an electric aircraft, the system comprising:

a plurality of battery submodules included in an electric aircraft, wherein each battery submodule comprises:

a battery management component comprising a sensor configured to detect an altitude value and a health metric;

a power bus element comprising at least a ring bus, wherein the power bus element is electrically connected to each battery submodule of the plurality of battery submodules;

a computing device communicatively connected to each battery submodule, wherein the computing device is configured to:

receive the health metric from the sensor;

determine a charging status of each of the plurality of battery submodules as a function of the health metric, wherein a charge capacity value of the health metric is compared to a charge threshold value;

displaying the charging status for each of the plurality of battery submodules to the user using a stereoscopic display;

selectively charge each of the plurality of battery submodules using the power bus element as a function of the determined charging status for each battery submodule of the plurality of battery submodules, wherein the battery submodules are charged by the power bus element when the charge capacity value does not surpass the charge threshold value; and

periodically perform a charge-and-update process, wherein the charge-and-update process includes generating updated charge capacity values for at least one cell in the given battery submodule.

2. The system of claim 1 , wherein the computing device periodically detects the health datum using the sensor.

3. The system of claim 2 , wherein the determination to detect the health metric using the sensor is based at least in part on a current cycle number associated with the detecting the health metric.

4. The system of claim 2 , wherein the determination to detect the health metric using the sensor is based on a maximum cell voltage of the battery being less than an updated threshold voltage of the battery.

5. The system of claim 1 , wherein the health metric includes a discharge-related fault condition.

6. The system of claim 1 , wherein the health metric may include a cell charge capacity.

7. The system of claim 1 , wherein the charging status may be displayed to a user through a remote device.

8. The system of claim 1 , wherein the charge-and-update will not be performed periodically when some state or condition has been met in the battery submodule.

9. The system of claim 1 , wherein charging of the battery submodules further includes determining to perform a charge-only process, the charge-only process including exercising the given battery submodule without updating a health metric.

10. A method for a monitoring system for charging multiple battery packs in an electric aircraft, the method comprising:

coupling a plurality of battery submodules to the electric aircraft;

comprising, at each battery submodule of the plurality of battery submodules, a battery management component comprising a sensor configured to detect an altitude value and a health metric;

electrically connecting a power bus element, comprising at least a ring bus, to the electric aircraft wherein the bus element is electrically connected to each battery submodule of the plurality of battery submodules;

commutatively connecting, at the plurality of battery submodules, a computing device to each battery submodule;

receiving, at the computing device, the health metric from the sensor;

determining, at the computing device, a charging status of each of the plurality of battery submodules as a function of the health metric, wherein a charge capacity value of the health metric is compared to a charge threshold value;

displaying, at the computing device, the charging status for each of the plurality of battery submodules to the user using a stereoscopic display;

selectively charging, at the computing device, each of the plurality of battery submodules using the power bus element as a function of the determined charging status for each battery submodule of the plurality of battery submodules, wherein the battery submodules are charged by the power bus element when the charge capacity value does not surpass the charge threshold value; and

periodically performing, by the computing device, a charge-and-update process, wherein the charge-and-update process includes generating updated charge capacity values for at least one cell in the given battery submodule.

11. The method of claim 10 , wherein the computing device periodically detects the health datum using the sensor.

12. The method of claim 11 , wherein the determination to detect the health metric using the sensor is based at least in part on a current cycle number associated with the detecting the health metric.

13. The method of claim 11 , wherein the determination to detect the health metric using the sensor is based on a maximum cell voltage of the battery being less than an updated threshold voltage of the battery.

14. The method of claim 10 , wherein the health metric includes a discharge-related fault condition.

15. The method of claim 10 , wherein the health metric may include a cell charge capacity.

16. The method of claim 10 , wherein the charging status may be displayed to a user through a remote device.

17. The method of claim 10 , wherein the charge-and-update will not be performed periodically when some state or condition has been met in the battery submodule.

18. The method of claim 10 , wherein charging of the battery submodules further includes determining to perform a charge-only process, the charge-only process including exercising the given battery submodule without updating a health metric.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 20, 2021
From: WIEGMAN, HERMAN
To: BETA AIR, LLC
Reel/Frame 058436/0430 →
Continuity (1)
Related Publication 20230145536A1 · May 11, 2023