EXPECTED BATTERY LIFE DETERMINATION SYSTEMS AND METHODS

• US 20130278270A1
• Filed: 05/09/2012
• Published: 10/24/2013
• Est. Priority Date: 04/20/2012
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH, Samsung SDI Company Limited
• Original Assignee: Cobasys LLC (Robert Bosch GmbH)
• Inventors: Koch, Robert
• Granted Patent: US 9,064,064 B2
• Time in Patent Office: Days
• US Class Current: 324/426
• CPC Class Codes: G01R 31/392 Determining battery ageing or deterioration, e.g. state of health
• CPC Class Codes: G06F 2119/04 Ageing analysis or optimisation against ageing
• CPC Class Codes: G06F 2119/06 Power analysis or power optimisation
• CPC Class Codes: G06F 30/20 Design optimisation, verification or simulation optimisation, verification or simulation of circuit designs G06F30/30

Abstract

A method includes: generating a first age factor value for a battery based on: a cycle period of the battery; a required operational life of the battery; and a cycle life of the battery. The method further includes generating a second age factor value for the battery based on: the required operational life; and a resting life of the battery. The method further includes generating a third age factor value for the battery based on: the required operational life; the first age factor value; the second age factor value; and at least one of an expected period of cycling of the battery during the required operational life and expected period of resting of the battery during the required operational life. The method further includes: generating an expected life of the battery based on the required operational life and the third age factor value; and displaying the expected life.

Claims

1. A system for determining an expected life of a battery, the system comprising:

(a) a first age factor module that generates a first age factor value for the battery based on;

(i) a cycle period of the battery generated based on user input;

(ii) a required operational life of the battery generated based on user input, the required operational life corresponding to a continuous period including both cycling and resting of the battery during which the battery is required to satisfy one or more predetermined performance criteria; and

(iii) a cycle life of the battery generated based on user input, the cycle life corresponding to a period of continuous cycling of the battery after which the battery is expected to begin to fail to satisfy at least one of the predetermined performance criteria;

(b) a second age factor module that generates a second age factor value for the battery based on;

(i) the required operational life of the battery; and

(ii) a resting life of the battery generated based on user input, the resting life of the battery corresponding to a period of continuous resting of the battery after which the battery is expected to begin to fail to satisfy at least one of the predetermined performance criteria;

(c) a third age factor module that generates a third age factor value for the battery based on;

(i) the required operational life of the battery;

(ii) the first age factor value;

(iii) the second age factor value; and

(iv) at least one of an expected period of cycling of the battery during the required operational life and expected period of resting of the battery during the required operational life; and

(d) an expected life module that generates an expected life of the battery based on the required operational life of the battery and the third age factor value and that displays the expected life of the battery on a display.

2. The system of claim 1 wherein the expected life module sets the expected life of the battery equal to the required operational life of the battery divided by the third age factor value.

3. The system of claim 1 wherein the expected period of cycling of the battery is generated based on user input and the expected period of resting of the battery is generated based on user input.

4. The system of claim 1 wherein the third age factor module sets the third age factor value equal to a first period plus a second period, sets the first period equal to the expected period of resting of the battery during the required operational life multiplied by the second age factor value, and sets the second period equal to the expected period of cycling of the battery during the required operational life multiplied by the first age factor value.

5. The system of claim 4 further comprising:

an expected operating period module that generates the expected period of cycling of the battery based on user input; and

an expected resting period module that sets the expected period of resting of the battery equal to the required operational life minus the expected period of cycling of the battery.

6. The system of claim 4 further comprising:

an expected resting period module that generates the expected period of resting of the battery based on user input; and

an expected operating period module that sets the expected period of cycling of the battery equal to the required operational life minus the expected period of resting of the battery.

7. The system of claim 1 wherein the third age factor module sets the third age factor value equal to a first period plus a second period, sets the first period equal to the first age factor value multiplied by the expected period of cycling of the battery during the required operational life, sets the second period equal to the second age factor value multiplied by a third period, and sets the third period equal to the required operational life of the battery minus the expected period of cycling of the battery during the required operational life.

8. The system of claim 1 wherein the third age factor module sets the third age factor value equal to a first period plus a second period, sets the first period equal to the first age factor value multiplied by a third period, sets the third period equal to the required operational life of the battery minus the expected period of resting of the battery during the required operational life, and sets the second period equal to the second age factor value multiplied by the expected period of resting of the battery during the required operational life.

9. The system of claim 1 wherein the first age factor module sets the first age factor value for the battery equal to the required operational life divided by a period that is equal to a product of the cycle period and the cycle life.

10. The system of claim 1 wherein the second age factor module sets the second age factor value equal to the required operational life divided by the resting life.

11. A method for determining an expected life of a battery, the method comprising:

(a) generating a first age factor value for the battery based on;

(i) a cycle period of the battery generated based on user input;

(ii) a required operational life of the battery generated based on user input, the required operational life corresponding to a continuous period including both cycling and resting of the battery during which the battery is required to satisfy one or more predetermined performance criteria; and

(iii) a cycle life of the battery generated based on user input, the cycle life corresponding to a period of continuous cycling of the battery after which the battery is expected to begin to fail to satisfy at least one of the predetermined performance criteria;

(b) generating a second age factor value for the battery based on;

(i) the required operational life of the battery; and

(ii) a resting life of the battery generated based on user input, the resting life of the battery corresponding to a period of continuous resting of the battery after which the battery is expected to begin to fail to satisfy at least one of the predetermined performance criteria;

(c) generating a third age factor value for the battery based on;

(i) the required operational life of the battery;

(ii) the first age factor value;

(iii) the second age factor value; and

(iv) at least one of an expected period of cycling of the battery during the required operational life and expected period of resting of the battery during the required operational life;

(d) generating an expected life of the battery based on the required operational life of the battery and the third age factor value; and

(e) displaying the expected life of the battery on a display.

12. The method of claim 11 further comprising setting the expected life of the battery equal to the required operational life of the battery divided by the third age factor value.

13. The method of claim 11 further comprising:

generating the expected period of cycling of the battery based on user input; and

generating the expected period of resting of the battery based on user input.

14. The method of claim 11 further comprising:

setting the third age factor value equal to a first period plus a second period;

setting the first period equal to the expected period of resting of the battery during the required operational life multiplied by the second age factor value; and

setting the second period equal to the expected period of cycling of the battery during the required operational life multiplied by the first age factor value.

15. The method of claim 14 further comprising:

generating the expected period of cycling of the battery based on user input; and

setting the expected period of resting of the battery equal to the required operational life minus the expected period of cycling of the battery.

16. The method of claim 14 further comprising:

generating the expected period of resting of the battery based on user input; and

setting the expected period of cycling of the battery equal to the required operational life minus the expected period of resting of the battery.

17. The method of claim 11 further comprising:

setting the third age factor value equal to a first period plus a second period;

setting the first period equal to the first age factor value multiplied by the expected period of cycling of the battery during the required operational life;

setting the second period equal to the second age factor value multiplied by a third period; and

setting the third period equal to the required operational life of the battery minus the expected period of cycling of the battery during the required operational life.

18. The method of claim 11 further comprising:

setting the third age factor value equal to a first period plus a second period;

setting the first period equal to the first age factor value multiplied by a third period;

setting the third period equal to the required operational life of the battery minus the expected period of resting of the battery during the required operational life; and

setting the second period equal to the second age factor value multiplied by the expected period of resting of the battery during the required operational life.

19. The method of claim 11 further comprising setting the first age factor value for the battery equal to the required operational life divided by a period that is equal to a product of the cycle period and the cycle life.

20. The method of claim 11 further comprising setting the second age factor value equal to the required operational life divided by the resting life.