NOTIFICATION SYSTEM AND METHOD FOR PROVIDING REMAINING RUNNING TIME OF A BATTERY

• US 20180080995A1
• Filed: 09/20/2016
• Published: 03/22/2018
• Est. Priority Date: 09/20/2016
• Status: Abandoned Application

• Current Assignee: Faraday & Future Inc.
• Original Assignee: Faraday & Future Inc.
• Inventors: HEINEN, Garrett David
• Application Number:
  US15/270,025
• Publication Number:
  US 20180080995A1
• Time in Patent Office: Days
• CPC Class Codes: B60L 2240/54 related to batteries
• CPC Class Codes: B60L 2240/545 Temperature
• CPC Class Codes: B60L 2240/662 Temperature
• CPC Class Codes: B60L 3/12 Recording operating variables ; Monitoring of operating variables
• CPC Class Codes: B60L 58/16 responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
• CPC Class Codes: G01R 31/392 Determining battery ageing or deterioration, e.g. state of health
• CPC Class Codes: G01R 31/44 Testing lamps
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles

Abstract

A notification method and system for providing notification regarding remaining time of a battery are disclosed. According to certain embodiments, the method may include predicting an ambient temperature of the battery. The method may also include determining a power demand for the battery. The method may also include determining a state of health (SoH) of the battery. The method may also include predicting a remaining time for a state of charge (SoC) of the battery to reach a predetermined level, based on the ambient temperature, the power demand, and the SoH. The method may further include providing a notification regarding the remaining time.

Claims

1. A notification method for a battery, the method comprising:

predicting an ambient temperature of the battery;

determining a power demand for the battery;

determining a state of health (SoH) of the battery;

predicting a remaining time for a state of charge (SoC) of the battery to reach a predetermined level, based on the ambient temperature, the power demand, and the SoH; and

providing a notification regarding the remaining time.

2. The method of claim 1, wherein predicting the ambient temperature comprises:

acquiring historical weather data of an area where the battery is located;

estimating future weather condition based on the historical weather data; and

predicting the ambient temperature based on the future weather condition.

3. The method of claim 1, wherein the SoH comprises at least one of a capacity of the battery, an internal resistance of the battery, or self-discharge characteristics of the battery.

4. The method of claim 3, wherein predicting the remaining time comprises:

determining a current drawn from the battery;

determining an initial SoC of the battery; and

predicting the remaining time based on the current, the initial SoC, and the capacity of the battery.

5. The method of claim 4,

wherein the current drawn from the battery comprises a self-discharge current of the battery;

and

wherein the method further comprises;

predicting the self-discharge current based on the initial SoC, the ambient temperature, and the self-discharge characteristics of the battery.

6. The method of claim 4,

wherein the current drawn from the battery comprises a current required by a load of the battery;

and

wherein the method further comprises;

predicting the current required by the load based on the initial SoC, the ambient temperature, the internal resistance of the battery, and power required by the load.

7. The method of claim 1, wherein determining the remaining time further comprises:

determining that a condition has occurred; and

in response to the determination, updating the remaining time.

8. The method of claim 7, wherein the condition comprises at least one of:

receiving a user command for updating the remaining time;

determining that a user-specified requirement is satisfied;

or

determining that a status of a device using the battery has changed.

9. The method of claim 7,

wherein the time to be updated is a first remaining time determined at a first point in time;

and

wherein updating the remaining time comprises;

determining, at a second point in time, a second remaining time; and

computing an updated remaining time based on a weighted function of the first and second remaining time.

10. The method of claim 1, wherein the battery is used in a vehicle.

11. The method of claim 10, wherein the power demand for the battery comprises power required by a vehicle monitoring system of the vehicle.

12. The method of claim 10, wherein the notification indicates whether the battery has enough energy for the vehicle to reach a charging station.

13. The method of claim 12, wherein:

when determining that the remaining time reaches a preset time duration or corresponds to a minimum energy level of the battery required by the vehicle to reach the charging station, presenting the notification via a user interface.

14. The method of claim 12, further comprising:

acquiring location information of one or more charging stations;

determining an average distance from the vehicle to the charging stations; and

determining the minimum energy level based on the average distance.

15. A notification system of for a battery, the system comprising:

a memory storing instructions; and

a processor configured to execute the instructions to;

predict an ambient temperature of the battery;

determine a power demand for the battery;

determine a state of health (SoH) of the battery;

predict a remaining time for a state of charge (SoC) of the battery to reach a predetermined level, based on the ambient temperature, the power demand, and the SoH; and

provide the notification regarding the remaining time.

16. The system of claim 15, wherein the processor is further configured to execute the instructions to:

acquire historical weather data of an area where the battery is located;

estimate future weather condition based on the historical weather data; and

predict the ambient temperature based on the future weather condition.

17. The system of claim 15, wherein the processor is further configured to execute the instructions to:

determine a current drawn from the battery;

determine an initial SoC of the battery; and

predict the remaining time based on the current, the initial SoC, and a capacity of the battery.

18. The system of claim 17,

wherein the current drawn from the battery comprises a self-discharge current of the battery;

and

wherein the processor is further configured to execute the instructions to;

predict the self-discharge current based on the initial SoC, the ambient temperature, and self-discharge characteristics of the battery.

19. The system of claim 17,

wherein the current drawn from the battery comprises a current required by a load of the battery;

and

wherein the processor is further configured to execute the instructions to;

predict the current required by the load based on the initial SoC, the ambient temperature, an internal resistance of the battery, and power required by the load.

20. A vehicle, comprising:

a battery;

a battery management system configured to determine a state of charge (SoC) and a state of health (SoH) of the battery; and

a controller configured to;

predict an ambient temperature of the battery

determine power required by the vehicle;

predict a remaining time for the SoC of the battery to reach a predetermined level, based on the ambient temperature, the power required by the vehicle, and the SoH; and

provide the notification regarding the remaining time.