Telematically monitoring a condition of an operational vehicle component

Patent metadata

Field	Value
Publication number	US-12080113-B2
Application number	US-202318096302-A
Country	US
Kind code	B2
Filing date	Jan 12, 2023
Priority date	Feb 8, 2018
Publication date	Sep 3, 2024
Grant date	Sep 3, 2024

Abstract

Apparatus, device, methods and system relating to a vehicular telemetry environment for monitoring vehicle components and providing indications towards the condition of the vehicle components and providing optimal indications towards replacement or maintenance of vehicle components before vehicle component failure.

First claim

What is claimed is:

1. A system for monitoring a battery of a vehicle having an internal combustion engine, a starter motor and an alternator, the system comprising:
a telematics hardware device configured to receive and store a plurality of battery voltages for the battery of the vehicle during an engine starting event that includes a first time period during which the battery provides electrical energy to the starter motor to start the internal combustion engine and a second time period during which electrical energy is provided by the alternator to the battery; and
a processor configured to;
receive the plurality of battery voltages and determine first and second battery voltages during the engine starting event, the first battery voltage being a minimum battery voltage during the first time period and the second battery voltage being a battery voltage during the second time period when the battery reaches a steady state for recharging the battery,
determine a battery state based on the first and second battery voltages, wherein determining the battery state comprises predicting, using the first and second battery voltages, a future failure of the battery to perform during a future engine starting event; and
provide a warning regarding the battery state, the warning indicating the future failure of the battery.

2. The system of claim 1 , wherein the second battery voltage is a maximum battery voltage during the second time period.

3. The system of claim 1 , wherein the telematics hardware device is configured to detect battery voltages corresponding to an ignition on voltage, a voltage representative of an active starter motor, and a voltage after cranking when the battery is charging.

4. The system of claim 1 , wherein during the second time period the internal combustion engine is started and the alternator is driven by the internal combustion engine to produce electrical energy to charge the battery.

5. The system of claim 1 , wherein the processor is configured to determine a dwell time that is a time period between occurrences of the first and second battery voltages.

6. The system of claim 5 , wherein the processor is configured to determine a recharge slope of a battery voltage curve during the dwell time.

7. The system of claim 6 , wherein the processor is configured to determine the battery state based on the first battery voltage or the recharge slope of the battery voltage curve.

8. The system of claim 1 , wherein the battery state represents operation of the battery as compared to operation of the battery when new.

9. The system of claim 1 , wherein the processor is configured to compare the first battery voltage to a first battery voltage determined during at least one prior engine starting event for the vehicle and battery, or compare the second battery voltage to a second battery voltage determined during at least one prior engine starting event for the vehicle and battery.

10. The system of claim 9 , wherein the processor is configured to determine a first variance for a plurality of first battery voltages for a plurality of engine starting events or a second variance for a plurality of second battery voltages for a plurality of engine starting events, and to determine the battery state based on the first variance or the second variance.

11. The system of claim 1 , wherein the telematics hardware device is configured to determine a beginning of the engine starting event based on a rotation of the internal combustion engine exceeding a threshold revolutions per minute.

12. A system for monitoring a battery of a vehicle having an internal combustion engine, a starter motor and an alternator, the system comprising:
a telematics hardware device configured to receive and store a plurality of battery voltages for the battery of the vehicle during a cranking event that includes a first time period during which the battery provides electrical energy to the starter motor to start the internal combustion engine and a second time period during which electrical energy is provided by the alternator to the battery; and
a processor configured to:
receive the plurality of battery voltages and determine a minimum battery voltage and a maximum battery voltage for the cranking event, the minimum battery voltage occurring before the maximum battery voltage,
determine a battery state based on the minimum and maximum battery voltages, wherein determining the battery state comprises predicting, using the minimum and maximum battery voltages for the cranking event, a future failure of the battery to perform during a future cranking event; and
provide a warning regarding the battery state, the warning indicating the future failure of the battery.

13. The system of claim 12 , wherein the telematics hardware device is configured to detect battery voltages corresponding to an ignition on voltage, a voltage representative of an active starter motor, and a voltage after cranking when the battery is charging.

14. The system of claim 12 , wherein the processor is configured to determine the minimum battery voltage as a minimum battery voltage during the first time period and the maximum battery voltage as a maximum battery voltage during the second time period.

15. The system of claim 12 , wherein during the second time period the internal combustion engine is started and the alternator is driven by the internal combustion engine to produce electrical energy to charge the battery.

16. The system of claim 12 , wherein the processor is configured to determine a dwell time that is a time period between occurrences of the minimum and maximum battery voltages.

17. The system of claim 16 , wherein the processor is configured to determine a recharge slope of a battery voltage curve during the dwell time.

18. The system of claim 17 , wherein the processor is configured to determine the battery state based on the minimum battery voltage or the recharge slope of the battery voltage curve.

19. The system of claim 12 , wherein the battery state represents an ability of the battery to perform future cranking events.

20. The system of claim 12 , wherein the processor is configured to compare the minimum battery voltage to a minimum battery voltage determined during at least one prior cranking event for the vehicle and battery, or compare the maximum battery voltage to a maximum battery voltage determined during at least one prior cranking event for the vehicle and battery.

21. The system of claim 20 , wherein the processor is configured to determine a first variance for a plurality of minimum battery voltages for a plurality of cranking events or a second variance for a plurality of maximum battery voltages for a plurality of cranking events; and determine the battery state based on the first variance or the second variance.

22. The system of claim 12 , wherein the telematics hardware device is configured to determine a beginning of the cranking event based on a rotation of the internal combustion engine exceeding a threshold revolutions per minute.

23. The system of claim 12 , wherein the maximum battery voltage corresponds to a battery voltage that reaches a steady state for recharging the battery.

Assignees

• Geotab Inc

Inventors

• Kyes John Robert Ford
• Davidson Mark Jeffrey
• Walli Thomas Arthur

Classifications

• B60N2230/20

  Wireless data transmission · CPC title

• B60N2/0024

  for identifying, categorising or investigation of the occupant or object on the seat · CPC title

• G07C5/0816

  Indicating performance data, e.g. occurrence of a malfunction · CPC title

• B60L58/16

  responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH] · CPC title

• G01S7/417

  involving the use of neural networks · CPC title