Intelligent battery cell

Patent metadata

Field	Value
Publication number	US-12301037-B2
Application number	US-202217932965-A
Country	US
Kind code	B2
Filing date	Sep 16, 2022
Priority date	Sep 21, 2021
Publication date	May 13, 2025
Grant date	May 13, 2025

Abstract

Systems, devices, computer-implemented methods, and/or computer program products that can facilitate an intelligent battery cell are addressed. In one example, a device can comprise: active battery cell material; and an internal circuit coupled to the active battery cell material and comprising: a circuit board; two alternating current (AC) power points; two isolated direct current (DC) power points; and a controller that can operate one or more switches on an H-bridge circuit to disconnect the device from a main battery in a bypass mode. In another example, a smart cell modulator can comprise: a set of smart battery cells; and a controller that can operate to selectively engage a subset of the smart battery cells to enable load sharing, distributed feedback control, circulate load across one or more smart battery cells of the set of smart battery cells to increase torque, and to enable speed requests.

First claim

What is claimed is:

1. A system, comprising:
a set of smart battery cells, wherein each smart battery cell of the set of smart battery cells comprises:
active battery cell material; and
a circuit coupled to the active battery cell material, wherein the circuit comprises:
a circuit board;
two alternating current (AC) power points; and
two isolated direct current (DC) power points; and

a controller that operates one or more sets of switches associated with the set of smart battery cells to selectively engage a subset of smart battery cells of the set of smart battery cells to enable load sharing.

2. The system of claim 1 , wherein the subset of smart battery cells produces a voltage output to operate an electric motor, and wherein the voltage output has a sine wave form.

3. The system of claim 1 , wherein the controller causes respective discharge of smart battery cells of the subset of smart battery cells to produce a voltage output.

4. The system of claim 3 , wherein the controller causes the respective discharge of the smart battery cells of the subset during a period of reactive charging of the smart battery cells of the subset.

5. The system of claim 1 , wherein selective engagement of the subset of smart battery cells causes individual smart battery cells of the subset of smart battery cells to be protected from damage due to unwanted cell charging.

6. The system of claim 1 , wherein the controller engages the subset of smart battery cells under a defined time threshold.

7. The system of claim 1 , wherein the controller engages the subset of smart battery cells during a limited period of a sine cycle representing a voltage output.

8. The system of claim 1 , wherein the controller uses a cell sorting algorithm to selectively engage the subset of smart battery cells.

9. A computer-implemented method, comprising:
controlling, by a system operatively coupled to a processor, one or more sets of switches associated with a set of smart battery cells to produce a voltage output, wherein the controlling comprises selectively engaging a subset of smart battery cells of the set of smart battery cells to enable load sharing, and wherein each smart battery cell of the set of smart battery cells comprises:
active battery cell material; and
a circuit coupled to the active battery cell material, wherein the circuit comprises:
a circuit board;
two alternating current (AC) power points; and
two isolated direct current (DC) power points.

10. The computer-implemented method of claim 9 , wherein the controlling further comprises:
producing, by the subset of smart battery cells, the voltage output to operate an electric motor, and wherein the voltage output has a sine wave form.

11. The computer-implemented method of claim 9 , wherein the controlling further comprises:
causing respective discharge of smart battery cells of the subset of smart battery cells to produce the voltage output.

12. The computer-implemented method of claim 11 , wherein the controlling further comprises:
causing the respective discharge of the smart battery cells of the subset during a period of reactive charging of the smart battery cells of the subset.

13. The computer-implemented method of claim 9 , wherein selective engagement of the subset of smart battery cells causes individual smart battery cells of the subset of smart battery cells to be protected from damage due to unwanted cell charging.

14. The computer-implemented method of claim 9 , wherein the selectively engaging comprises:
selectively engaging the subset of smart battery cells under a defined time threshold.

15. The computer-implemented method of claim 9 , wherein the selectively engaging comprises:
selectively engaging the subset of smart battery cells during a limited period of a sine cycle representing a voltage output.

16. The computer-implemented method of claim 9 , wherein the controlling further comprises:
using a cell sorting algorithm to selectively engage the subset of smart battery cells.

17. A computer program product facilitating intelligent battery cell control, the computer program product comprising a non-transitory computer readable medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to:
control, by the processor, one or more sets of switches associated with a set of smart battery cells to produce a voltage output, and wherein the controlling comprises selectively engaging a subset of smart battery cells of the set of smart battery cells to enable load sharing, and wherein each smart battery cell of the set of smart battery cells comprises:
active battery cell material; and
a circuit coupled to the active battery cell material, wherein the circuit comprises:
a circuit board;
two alternating current (AC) power points; and
two isolated direct current (DC) power points.

18. The computer program product of claim 17 , wherein the controlling further comprises:
producing the voltage output to operate an electric motor, and wherein the voltage output has a sine wave form.

19. The computer program product of claim 17 , wherein the controlling further comprises:
causing respective discharge of smart battery cells of the subset of smart battery cells to produce the voltage output.

20. The computer program product of claim 19 , wherein the controlling further comprises:
causing the respective discharge of the smart battery cells of the subset during a period of reactive charging of the smart battery cells of the subset.

Assignees

• Volvo Car Corp

Inventors

• Ekström Markus

Classifications

• H02J7/60

  including safety or protection arrangements · CPC title

• H02J7/855 Primary

  with circuits adapted for supplying loads from the battery · CPC title

• H02J2105/37

  exchanging power with electric vehicles [EV] or with hybrid electric vehicles [HEV] · CPC title

• H02J7/50

  acting upon multiple batteries simultaneously or sequentially · CPC title

• H02P27/06

  using DC to AC converters or inverters (H02P27/05 takes precedence) · CPC title