Expected battery life determination systems and methods

Patent metadata

Field	Value
Publication number	US-9064064-B2
Application number	US-201213467526-A
Country	US
Kind code	B2
Filing date	May 9, 2012
Priority date	Apr 20, 2012
Publication date	Jun 23, 2015
Grant date	Jun 23, 2015

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.

First claim

What is claimed is:

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, with a first age factor module, 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, with a second age factor module, 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, with a third age factor module, 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, with an expected life module, an expected life of the battery based on the required operational life of the battery and the third age factor value; and
(e) displaying, with the expected life module, the expected life of the battery on a display.

12. The method of claim 11 further comprising setting, with the expected life module, 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, with the third age factor module, the expected period of cycling of the battery based on user input; and
generating, with the third age factor module, the expected period of resting of the battery based on user input.

14. The method of claim 11 further comprising:
setting, with the third age factor module, the third age factor value equal to a first period plus a second period;
setting, with the third age factor module, the first period equal to the expected period of resting of the battery durin

Assignees

• Koch Robert
• Bosch Gmbh Robert

Inventors

• Koch Robert

Classifications

• G06F30/20 Primary

  Design optimisation, verification or simulation (optimisation, verification or simulation of circuit designs G06F30/30) · CPC title

• G06F2119/06

  Power analysis or power optimisation · CPC title

• G01R31/392 Primary

  Determining battery ageing or deterioration, e.g. state of health · CPC title

• G06F2119/04

  Ageing analysis or optimisation against ageing · CPC title

• G06F2217/76

  Physics · mapped topic