IP Library › Granted Patent US 12681097
Granted Patent B2
US 12681097 · App. 18/256,461 · Granted Jul 14, 2026

Method for determining the association of a sensor device with an electric battery unit

Inventors: Gunnar Ledfelt (Nykvarn, SE); Per Nordvall (Trosa, SE); Mathias Eggeling (Augsburg, DE)
Assignee: TRATON AB
G01R31/3842H01M10/441H01M10/48H01M50/583
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Quick Facts
Patent No.
US 12681097
App. No.
18/256,461
Granted
Jul 14, 2026
Kind
B2
Abstract

A method for determining the association of a sensor device with a battery unit. A first circuit includes a first battery unit. A second circuit includes a second battery unit. An electric current limiting device connects the circuits to one another. A first sensor device detects a voltage or a current associated with one of the first and second battery units while a second sensor device detects a voltage or a current associated with the other one of the first and second battery units. The method includes activating an electrical energy consumer or an electrical energy producer of the first circuit, and upon detection of a voltage change or a current change by one of the first and second sensor devices, determining that the one of the first and second sensor devices which detects a voltage change or a current change is associated with the first battery unit.

Claims (35)

1 . A method for determining the association of a sensor device with an electric battery unit of a plurality of electric battery units,

wherein the plurality of electric battery units is connected to an electrical arrangement,

wherein the electrical arrangement comprises a first electrical circuit comprising a first electric battery unit of the plurality of electric battery units,

wherein the electrical arrangement comprises a second electrical circuit comprising a second electric battery unit of the plurality of electric battery units,

wherein the electrical arrangement comprises an electric current limiting device connecting the first electrical circuit to the second electrical circuit, and

wherein a first sensor device is connected to detect any one of a voltage and an electric current associated with one of the first and second electric battery units while a second sensor device is connected to detect any one of a voltage and an electric current associated with the other one of the first and second electric battery units,

wherein the method comprises:

activating any one of an electrical energy consumer and an electrical energy producer included in the first electrical circuit, and

upon detection of any one of a voltage change and an electric current change by one of the first and second sensor devices, determining that the one of the first and second sensor devices which detects any one of a voltage change and an electric current change is associated with the first electric battery unit of the first electrical circuit.

2 . A method according to claim 1 , wherein the method comprises determining the association of a sensor device with an electric battery unit of a plurality of electric battery units carried by a vehicle.

3 . A method according to claim 1 , wherein one of the first and second sensor devices is connected to one of the first and second electric battery units while the other one of the first and second sensor devices is connected to the other one of the first and second electric battery units.

4 . A method according to claim 1 , wherein the electric current limiting device comprises a switching device switchable between a non-conducting state and a conducting state,

wherein when the switching device is in the conducting state the switching device is configured to allow an electric current to pass,

wherein when the switching device is in the non-conducting state the switching device is configured to interrupt an electric current, and

wherein the method comprises:

when the switching device is in the non-conducting state, activating any one of an electrical energy consumer and an electrical energy producer included in the first electrical circuit.

5 . A method according to claim 4 , wherein the switching device comprises or consists of an electric battery master switch.

6 . A method according to claim 4 , wherein the method comprises:

switching the switching device to the non-conducting state before activating any one of an electrical energy consumer and an electrical energy producer included in the first electrical circuit.

7 . A method according to claim 1 , wherein the electric current limiting device comprises an electrical one-way conducting device configured to conduct electric current in one direction only.

8 . A method according to claim 7 , wherein the electrical one-way conducting device comprises a diode.

9 . A method according to claim 1 , wherein the step of activating any one of an electrical energy consumer and an electrical energy producer included in the first electrical circuit comprises activating the electrical energy consumer to consume electrical energy, whereupon an electric current is supplied from the first electric battery unit and detected by one of the first and second sensor devices.

10 . A method according to claim 1 , wherein the step of activating any one of an electrical energy consumer and an electrical energy producer included in the first electrical circuit comprises activating the electrical energy producer to produce electrical energy, whereupon the first electric battery unit is charged, and wherein the charging of the first electric battery unit is detected by one of the first and second sensor devices.

11 . A method according to claim 10 , wherein the electrical energy producer comprises an electrical generator, and wherein the step of activating any one of an electrical energy consumer and an electrical energy producer included in the first electrical circuit comprises activating the electrical generator to charge the first electric battery unit.

12 . A non-transitory computer readable medium comprising a computer program that, when executed by a computer, causes the computer to perform the method according to claim 1 .

13 . A control arrangement for determining the association of a sensor device with an electric battery unit of a plurality of electric battery units,

wherein the plurality of electric battery units is connected to an electrical arrangement,

wherein the electrical arrangement comprises a first electrical circuit comprising a first electric battery unit of the plurality of electric battery units,

wherein the electrical arrangement comprises a second electrical circuit comprising a second electric battery unit of the plurality of electric battery units,

wherein the electrical arrangement comprises an electric current limiting device connecting the first electrical circuit to the second electrical circuit, and

wherein a first sensor device is connected to detect any one of a voltage and an electric current associated with one of the first and second electric battery units while a second sensor device is connected to detect any one of a voltage and an electric current associated with the other one of the first and second electric battery units,

wherein the control arrangement is configured to:

activate any one of an electrical energy consumer and an electrical energy producer included in the first electrical circuit, and

upon detection of any one of a voltage change and an electric current change by one of the first and second sensor devices, determine that the one of the first and second sensor devices which detects any one of a voltage change and an electric current change is associated with the first electric battery unit of the first electrical circuit.

14 . A vehicle comprising a control arrangement according to claim 13 .