DEVICE OF CONTROLLING CHARGE AND DISCHARGE OF BATTERY, METHOD AND STORAGE MEDIUM

• US 20150145483A1
• Filed: 10/31/2014
• Published: 05/28/2015
• Est. Priority Date: 11/25/2013
• Status: Abandoned Application

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: MURAKAMI, Masahiko, Shinohara, Masako
• Application Number:
  US14/529,708
• Publication Number:
  US 20150145483A1
• Time in Patent Office: Days
• US Class Current: 320/134
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 7/0071 with a programmable schedule
• CPC Class Codes: H02J 7/04 Regulation of charging current or voltage

Abstract

A device of controlling a charge and discharge of a battery, the device includes, a storing device configured to store a plurality of charge and discharge control plans and an unplanned use history list, and a control device configured to acquire the charge and discharge state of a first battery, compares acquired charge and discharge state with the charge and discharge state defined in the charge and discharge control plan, detects a first unplanned use, estimates duration time and charge and discharge state of the first unplanned use based on the unplanned entry corresponding to the first unplanned use, corrects the charge and discharge control plan of the first battery so as to have the estimated charge and discharge state in estimated duration time, and corrects the charge and discharge control plan of a second battery, which has the estimated charge and discharge state in the estimated duration time.

Claims

1. A device of controlling a charge and discharge of a battery, the device comprising:

a storing device configured to store a plurality of charge and discharge control plans which define the charge and discharge state including a discharge state, an electricity state and a charge state of the battery in each of time bands, and an unplanned use history list including an unplanned use entry which has duration time and the charge and discharge state when the unplanned use occurs; and

a control device configured to acquire the charge and discharge state of a first battery, compare acquired charge and discharge state with the charge and discharge state defined in the charge and discharge control plan, detect a first unplanned use when the acquired charge and discharge state is different from the charge and discharge state defined in the charge and discharge control plan, estimate duration time and charge and discharge state of the first unplanned use based on the unplanned entry which is corresponding to the first unplanned use and is stored in the unplanned use history list, correct the charge and discharge control plan of the first battery so as to have the estimated charge and discharge state in estimated duration time of the first unplanned use, and correct the charge and discharge control plan of a second battery, which has the estimated charge and discharge state in the estimated duration time, corresponding to correction of the charge and discharge control plan of the first battery.

2. The device according to claim 1, wherein the control device is configured to correct the charge and discharge control plan of the second battery so that a first peak electricity based on the plurality of charge and discharge control plans which includes corrected charge and discharge control plans of the first and second batteries does not exceed a second peak electricity based on the plurality of charge and discharge control plans which includes the charge and discharge control plans of the first and second batteries before correction, or does not exceed a predetermined limit value.

3. The device according to claim 1, wherein the control device is configured to correct the charge and discharge state in time band except the estimated duration time in the charge and discharge control plan of the first battery so as to perform controlling the estimated charge and discharge state in the estimated duration time.

4. The device according to claim 1, wherein the control device is configured to estimate the duration time and the charge and discharge state based on the unplanned use entry in the unplanned use history list, the unplanned use entry being the charge and discharge state which is acquired and the charge and discharge state appointed by the discharge control plan are same as the first unplanned use at the time of detection.

5. The device according to claim 1, wherein the second battery is a battery that the unplanned use does not occur in a predetermined time including the duration time of the first unplanned use.

6. The device according to claim 1, wherein the control device is configured to detect the first unplanned use which will occur after a predetermined time based on the unplanned use entry of the first battery which the charge and discharge state of the first battery, which is acquired, and the charge and discharge state in the predetermined time before a start time of the unplanned use are same.

7. The device according to claim 1, wherein the storing device is configured to further store a schedule of the user of the first battery, and

the control device is configured to extract one or more second schedule histories in which identification information is same as first schedule, and detects the first unplanned use which occurs corresponding to the first schedule based on the unplanned use entry corresponding to the second schedule histories which are extracted.

8. The device according to claim 7, wherein the control device is configured to detect the first unplanned use when all charge and discharge states in the time band of the second schedule history are the discharge state even when the unplanned use entry is not detected, and estimate the charge and discharge state of the first unplanned use as the charge and discharge state.

9. The device according to claim 7, wherein the control device is configured to prohibit a detection of the first unplanned use when the unplanned use entry is not detected and the charge and discharge state in the time band of the second schedule history includes all kinds of the charge and discharge states.

10. The device according to claim 7, wherein the control device is configured to correct the charge and discharge control plan of the first battery so as to have the charge and discharge state except the charge and discharge state which is estimated in the first schedule time band so as not to exceed a peak electricity when correcting the charge and discharge control plan so as to have the charge and discharge state which is estimated in the duration time of the first unplanned use which is extracted, and delete the unplanned use entry corresponding to the first unplanned use when the unplanned use is not detected in the first schedule time band and prohibit a extraction of the unplanned use of the second schedule when the first schedule is detected as schedule having same identification information as the second schedule.

11. The device according to claim 1, wherein the control device is configured to prohibit the correction of the charge and discharge control plan in a case that a peak electricity, when occurring the charge and discharge state which is estimated in the duration time of the first unplanned use which is estimated in the first battery based on the charge and discharge control plan of the first battery, does not exceed a peak electricity when the charge and discharge control plan of the first battery is not corrected.

12. The device according to claim 1, wherein the control device is configured to create the plurality of charge and discharge control plans so that a peak electricity based on the plurality of charge and discharge control plan is small, and create the charge and discharge control plan of the first battery so as to have the charge and discharge state which is estimated in the duration time of the first unplanned use which is estimated.

13. The device according to claim 12, wherein the storing device is configured to further store a schedule of the user of the first battery, and

the control device is configured to estimate the charge and discharge state in first schedule time band of the first battery based on the charge and discharge states in time bands of one or more second schedule histories in which an identification information is same as the first schedule, and create the charge and discharge control plan of the first battery so as to have the charge and discharge state which is estimated in the first schedule time band.

19. The device according to claim 1, wherein the control unit is configured to control the batteries based on the charge and discharge control plan.

14. A device of controlling a charge and discharge of a battery, the device comprising:

a storing device configured to store a plurality of charge and discharge control plans which define the charge and discharge state including a discharge state, an electricity state and a charge state of the battery in each of time bands, and a schedule of an user of the battery; and

a control device configured to acquire the charge and discharge state of a first battery, estimates charge and discharge state in a time band of a first schedule of the first battery based on the charge and discharge state in a time band of one or more second history which identification information is same as the first schedule, and create the charge and discharge control plans of the plurality of batteries so that a peak consumption power based on the charge and discharge control plans is small and so that charge and discharge control plan of the first battery has the charge and discharge state which is estimated in the first schedule time band.

15. The device according to claim 14, wherein the control unit is configured to create the charge and discharge control plan having the discharge state in the first schedule time band when the charge and discharge state which is estimated is the discharge state, and having the charge and discharge state of either one of the electricity state and the charge state in the first schedule time band when the charge and discharge state which is estimated is the charge and discharge state except the discharge state.

16. The device according to claim 14, wherein the control unit is configured to create the charge and discharge control plan without considering the charge and discharge state which is estimated, in a case that a peak electricity does not increase when occurring the charge and discharge state which is estimated in the first schedule time band in the charge and discharge control plan created without considering the charge and discharge state which is estimated.

17. The device according to claim 14, wherein the control unit is configured to estimate the charge and discharge states in either one or both of time bands before and after the first schedule time band.

18. The device according to claim 14, wherein the control unit is configured to correct the start time or end time of the first schedule to a time of changing the charge and discharge states in time band including time before or after the first schedule time band.

20. A method of controlling a charge and discharge state of a plurality of batteries, the method comprising:

acquiring a charge and discharge state, which includes a charge state, an electricity state and a discharge state, of the battery;

comparing acquired charge and discharge state with a charge and discharge state defined in a charge and discharge control plan;

detecting a first unplanned use when the acquired charge and discharge state is different from the charge and discharge state defined in the charge and discharge control plan;

estimating duration time and charge and discharge state of the first unplanned use based on the unplanned use entry corresponding to the first unplanned use in the unplanned use history list of the first battery; and

correcting the charge and discharge control plan of the first battery so as to have the estimated charge and discharge state in estimated duration time of the first unplanned use and correcting the charge and discharge control plan of a second battery, which has the estimated charge and discharge state in the estimated duration time, corresponding to correction of the charge and discharge control plan of the first battery.