METHOD FOR INDICATING A STATE OF A BATTERY OF A VEHICLE

Abstract

A method for indicating a state of a battery of a vehicle when the vehicle has suffered an accident, in which acoustic signals, which include coded items of information about at least one operating parameter of the battery, are sent by a loudspeaker of the vehicle. The acoustic signals are received by a microphone of a terminal and the coded items of information are decoded and output by the terminal.

Claims

1. A method for indicating a state of a battery of a vehicle when the vehicle has suffered an accident, wherein acoustic signals with coded items of information about at least one operating parameter of the battery are sent by a loudspeaker of the vehicle, wherein the acoustic signals are received by a microphone of a terminal, wherein the coded items of information are decoded and output by the terminal.

2. The method as claimed in claim 1, wherein the coded items of information are modulated as acoustic signals.

3. The method as claimed in claim 1, wherein the coded items of information are sent via acoustic signals at a frequency which is greater than a frequency perceptible by a human.

4. The method as claimed in claim 1, wherein the acoustic signals include items of information about a temperature and/or a state of charge as the at least one operating parameter of the battery.

5. The method as claimed in claim 1, wherein a volume and/or a frequency of the acoustic signals is or are varied as a function of the at least one operating state.

6. The method as claimed in claim 1, wherein reference is made to a state of a battery designed as a high-voltage battery of a vehicle designed as a motor vehicle.

7. The method as claimed in claim 1, wherein the acoustic signals are decoded by a mobile portable terminal, which is designed for communication and data processing, using software.

8. A system for indicating a state of a battery of a vehicle when the vehicle has suffered an accident, comprising: a loudspeaker of the vehicle, which is designed to send acoustic signals which include coded items of information about at least one operating parameter of the battery, wherein a microphone of a terminal is designed to receive the acoustic signals, and to decode and output the coded items of information.

9. The system as claimed in claim 8, further comprising: a control unit as a component of the vehicle, which control unit is designed to detect the at least one operating parameter of the battery, to activate the loudspeaker, and to cause it to send the acoustic.

10. The method as claimed in claim 2, wherein the coded items of information are sent via acoustic signals at a frequency which is greater than a frequency perceptible by a human.

11. The method as claimed in claim 2, wherein the acoustic signals include items of information about a temperature and/or a state of charge as the at least one operating parameter of the battery.

12. The method as claimed in claim 3, wherein the acoustic signals include items of information about a temperature and/or a state of charge as the at least one operating parameter of the battery.

13. The method as claimed in claim 2, wherein a volume and/or a frequency of the acoustic signals is or are varied as a function of the at least one operating state.

14. The method as claimed in claim 3, wherein a volume and/or a frequency of the acoustic signals is or are varied as a function of the at least one operating state.

15. The method as claimed in claim 4, wherein a volume and/or a frequency of the acoustic signals is or are varied as a function of the at least one operating state.

16. The method as claimed in claim 2, wherein reference is made to a state of a battery designed as a high-voltage battery of a vehicle designed as a motor vehicle.

17. The method as claimed in claim 3, wherein reference is made to a state of a battery designed as a high-voltage battery of a vehicle designed as a motor vehicle.

18. The method as claimed in claim 4, wherein reference is made to a state of a battery designed as a high-voltage battery of a vehicle designed as a motor vehicle.

19. The method as claimed in claim 5, wherein reference is made to a state of a battery designed as a high-voltage battery of a vehicle designed as a motor vehicle.

20. The method as claimed in claim 2, wherein the acoustic signals are decoded by a mobile portable terminal, which is designed for communication and data processing, using software.

Description

BRIEF DESCRIPTION OF THE FIGURE(S)

[0030] The invention is illustrated schematically in the drawing on the basis of embodiments and will be described schematically and in detail with reference to the drawing.

[0031] FIG. 1 shows a schematic illustration of a diagram for a sequence of an embodiment of the method according to the invention.

DETAILED DESCRIPTION

[0032] The diagram from FIG. 1 is provided for the schematic illustration of the embodiment of the method according to the invention using an embodiment of a system according to the invention. The diagram from FIG. 1 twice shows a vehicle 2, here a motor vehicle, which has a battery 4 in which electrical energy for driving or moving the vehicle 2 is stored. It is provided that the vehicle 2 has a control unit 8 having a modulator 10 and a loudspeaker 18.

[0033] It is also provided that the vehicle 2 is involved in an accident 6 and/or has suffered an accident 6. In this case, the accident 6 is usually registered by the control unit 8 via a sensor (not shown in more detail) that detects the accident 6. In this case, two types of acoustic signals 12, 14 are generated by the control unit 8. Secondary acoustic signals 12 comprise warning tones in a frequency range audible to a human, here a user 20. In the embodiment of the method presented here, primary acoustic signals 14 are modulated onto these secondary acoustic signals 12 by the modulator 10, wherein resulting acoustic signals 16, which comprise the primary and secondary signals 12, 14, are provided and sent or emitted by the loudspeaker 18.

[0034] At least the secondary acoustic signals 12 are perceived by the sense of hearing of the user 20. It is also provided that the user 20 has a smartphone as the terminal 22 here. This also has a microphone for receiving the resulting acoustic signals 16. The method provides that the primary acoustic signals 14 comprise information about an operating state of the battery 4, here about the temperature of the battery 4, which in the present case is, for example, 95° C. The coded and modulated primary acoustic signals 14 are demodulated and decoded by a computing unit of the terminal 22 using software. The primary acoustic signals 14 are machine-readable and/or machine-comprehensible for the computing unit of the terminal 22. In this case, the current value of the temperature of the battery 4 of the vehicle 2, 95° C. here, is visually and comprehensibly displayed to the user 20 using a display panel of the terminal 22.

[0035] If the vehicle 2, here a battery-operated vehicle 2 (BEV), suffers the accident 6, a function of the embodiment of the method is automatically activated, wherein a hazard indicator is calculated by the control unit 8. On the basis of the hazard indicator, which is dependent on at least one operating parameter of the battery 4, a corresponding warning tone is output as a secondary acoustic signal 12. In addition, items of information about the at least one battery state, here at least the temperature, are encoded as primary signals 14 and modulated onto the secondary signals 12 by the modulator 10. The user as first responder and/or rescue worker hears at least the secondary acoustic signals 12 or corresponding warning tones and can intuitively assess a possible danger situation depending on the volume and/or frequency of the secondary signals 12 or warning tones. In addition, the primary signals 14 are recorded by the microphone of the terminal 22 and demodulated with the aid of software, for example an app provided for this purpose, wherein the items of information contained therein are decoded. These items of information about the at least one operating parameter and thus a state of the battery 4 are displayed on the terminal 22.

REFERENCE NUMERALS

[0036] 2 vehicles [0037] 4 batteries [0038] 6 accidents [0039] 8 control unit [0040] 10 modulators [0041] 12, 14, 16 signal [0042] 18 loudspeakers [0043] 20 users [0044] 22 terminals