IP Library › Granted Patent US 12,466,291
Granted Patent B1
US 12,466,291 · App. 17/893,527 · Granted Nov 11, 2025

Multi-battery charging station which provides battery-specific charging parameters

Inventors: Lewis Romeo Hom (Mountain View, CA); Carlos Cardona (Mountain View, CA); Geoffrey Alan Long (Montara, CA)
Assignee: Wisk Aero LLC
B60L58/18B60L53/22B60L53/62B60L58/12G01R31/396H02J7/0013B60L2200/10
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Quick Facts
Patent No.
US 12,466,291
App. No.
17/893,527
Granted
Nov 11, 2025
Kind
B1
Abstract

Embodiments of the invention are directed to methods and systems for providing electric power with individualized charging parameters to each battery in a multi-battery system. Electric power from the single power source can be distributed in a controlled and unequal manner. Custom charging parameters can be designed for each battery. The custom charging parameters can be determined based on battery metrics gathered for that battery, and can be designed to optimize for a number of suitable priorities, such as recharging speed and battery health. As a result, each battery can be recharged according to individual needs.

Claims (56)

1 . A system comprising:

an aircraft including:

one or more propulsion systems;

a plurality of battery submodules, where each of the plurality of battery submodules is electrically coupled to one or more of the one or more propulsion systems; and

one or more battery monitoring systems, each of which is configured to collect one or more battery metrics for a respective battery submodule of the plurality of battery submodules;

a charger configured to provide electric power the plurality of battery submodules; and

a charger interface coupled to the aircraft and the charger, the charger interface including:

a processor; and

a memory coupled with the processor, wherein the memory is configured to provide the processor with instructions which when executed cause the processor to:

receive, from each of the one or more battery monitoring systems, the one or more battery metrics for the respective battery submodule of the plurality of battery submodules;

determine, for each of the plurality of battery submodules, a set of one or more custom charging parameters for the battery submodule based on the one or more battery metrics for the battery submodule;

determine a total charging power based on a plurality of sets of one or more custom charging parameters, where each set of one or more custom charging parameters corresponds to a respective battery submodule of the plurality of battery submodules;

operate the charger to provide the total charging power to a plurality of power converters;

operate the plurality of power converters to distribute the total charging power to one or more of the plurality of battery submodules according to the plurality of sets of one or more custom charging parameters;

receive, from each of the one or more battery monitoring systems, one or more updated battery metrics for the respective battery submodule of the plurality of battery submodules;

determine, for each of the plurality of battery submodules, an updated set of one or more custom charging parameters for the battery submodule based on the one or more updated battery metrics for the battery submodule;

determine an updated total charging power based on the updated sets of one or more custom charging parameters:

operate the charger to provide the updated total charging power; and

operate the plurality of power converters to distribute the updated total charging power to the plurality of battery submodules according to the updated sets of one or more custom charging parameters.

2 . The system of claim 1 , wherein the total charging power is distributed to the plurality of battery submodules unequally.

3 . The system of claim 1 , wherein each of the plurality of sets of one or more custom charging parameters include a custom current amount for a corresponding battery submodule of the plurality of battery submodules.

4 . The system of claim 3 , wherein the custom current amount is a function of time.

5 . The system of claim 3 , wherein the plurality of power converters are DC-to-DC converters, and wherein operating the plurality of power converters to distribute the total charging power to one or more of the plurality of battery submodules includes individually operating each of the plurality of power converters to modify an input electric current received from the charger into an output electric current according to the custom current amount for the corresponding battery submodule.

6 . The system of claim 5 , further comprising:

an adaptor coupled to the aircraft and the charger, wherein the adaptor including:

the charger interface; and

the plurality of power converters.

7 . The system of claim 1 , wherein determining, for each of the plurality of battery submodules, the set of one or more custom charging parameters for the battery submodule includes:

determining at least one priority for the battery submodule; and

determining the set of one or more custom charging parameters that satisfy the priority.

8 . The system of claim 7 , wherein the at least one priority includes at least one of maximizing recharging speed and minimizing battery degradation.

9 . The system of claim 1 , further comprising:

a plurality of control connection lines between each of the one or more battery monitoring systems and the charger interface, between each of the power converters and the charger interface, and between the charger and the charger interface; and

a plurality of power connection lines between each of the plurality of power converters and their respective battery submodules, and between the charger and each of the plurality of power converters.

10 . An adaptor comprising:

a plurality of DC-to-DC power converters; and

a charger interface comprising:

a processor; and

a memory coupled with the processor, wherein the memory is configured to provide the processor with instructions which when executed cause the processor to:

determine a total charging power based on a plurality of sets of one or more custom charging parameters each including include a custom current amount, where each set of one or more custom charging parameters corresponds to a respective battery submodule of a plurality of battery submodules included in an aircraft, wherein each of the plurality of battery submodules is electrically coupled to one or more propulsion systems of the aircraft;

operate a charger to provide the total charging power to the plurality of DC-to-DC power converters; and

operate the plurality of DC-to-DC power converters to distribute the total charging power to one or more of the plurality of battery submodules according to the plurality of sets of one or more custom charging parameters including individually operating each of the plurality of DC-to-DC power converters to modify an input electric current received from the charger into an output electric current according to the custom current amount.

11 . The charger interface of claim 10 , wherein the total charging power is distributed to the plurality of battery submodules unequally.

12 . A method comprising:

receiving, by a charger interface, from each of one or more battery monitoring systems, one or more battery metrics for a respective battery submodule of a plurality of battery submodules;

determining, by the charger interface, for each of the plurality of battery submodules, based on the one or more battery metrics for the battery submodule, a set of one or more custom charging parameters for the battery submodule;

determining, by the charger interface, a total charging power based on the plurality of sets of one or more custom charging parameters, where each set of one or more custom charging parameters corresponds to a respective battery submodule of the plurality of battery submodules included in an aircraft;

operating, by the charger interface, a charger to provide the total charging power to a plurality of power converters;

operating, by the charger interface, the plurality of power converters to distribute the total charging power to one or more of the plurality of battery submodules according to the plurality of sets of one or more custom charging parameters;

receiving, by the charger interface, from each of the one or more battery monitoring systems, one or more updated battery metrics for the respective battery submodule of the plurality of battery submodules; and

determining, by the charger interface, for each of the plurality of battery submodules, an updated set of one or more custom charging parameters for the battery submodule based on the one or more updated battery metrics for the battery submodule;

determining, by the charger interface, an updated total charging power based on the updated sets of one or more custom charging parameters;

operating, by the charger interface, the charger to provide the updated total charging power to the plurality of power converters; and

operating, by the charger interface, the plurality of power converters to distribute the updated total charging power to the plurality of battery submodules according to the updated sets of one or more custom charging parameters.

13 . The method of claim 12 , wherein determining, for each of the plurality of battery submodules, the set of one or more custom charging parameters for the battery submodule includes optimizing a recharging process for the battery submodule.

14 . The method of claim 13 , wherein optimizing the recharging process includes determining a balance between maximizing recharging speed and minimizing battery degradation.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 23, 2025
From: HOM, LEWIS ROMEO; CARDONA, CARLOS; LONG, GEOFFREY ALAN
To: WISK AERO LLC
Reel/Frame 071214/0078 →
Continuity (1)
Provisional Application 63236027 · Aug 23, 2021
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