IP Library › Granted Patent US 11,511,644
Granted Patent B2
US 11,511,644 · App. 16/655,335 · Granted Nov 29, 2022

Learning apparatus, learning method, and program

Inventors: Taisuke Tsurutani (Wako, JP); Taisuke Kurachi (Wako, JP)
Assignee: HONDA MOTOR CO., LTD.
B60L58/12G06N20/00G07C5/0825
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,511,644
App. No.
16/655,335
Granted
Nov 29, 2022
Kind
B2
Abstract

A learning apparatus includes: a learning part that performs, based on charging/discharging data indicating at least one of charging and discharging of a secondary battery that supplies electric power for traveling of a vehicle, a capacity learning of the secondary battery and that performs the capacity learning in response to a change amount of a charging rate that is indicated by the charging/discharging data exceeding a threshold value; and a threshold determination part that determines the threshold value based on history information of the learning part performing the capacity learning in a predetermined period.

Claims (59)

1. A learning apparatus, comprising:

a learning part that performs, based on charging/discharging data indicating at least one of charging and discharging of a secondary battery that supplies electric power for traveling of a vehicle, a capacity learning of the secondary battery and that performs the capacity learning in response to a change amount of a charging rate that is indicated by the charging/discharging data exceeding a threshold value; and

a threshold determination part that determines the threshold value based on history information of the learning part performing the capacity learning in a predetermined period,

wherein the history information is a number of times the learning part performs the capacity learning in the predetermined period.

2. The learning apparatus according to claim 1 ,

wherein the history information is an integration value of a difference charging rate that indicates a difference between a maximum value of a charging rate and a minimum value of the charging rate in the predetermined period in a history of the learning part performing the capacity learning in the predetermined period.

3. The learning apparatus according to claim 2 ,

wherein the threshold determination part makes the threshold value smaller as the integration value of the difference charging rate becomes smaller.

4. The learning apparatus according to claim 1 ,

wherein the history information is a square sum of a difference charging rate that indicates a difference between a maximum value of a charging rate and a minimum value of the charging rate in the predetermined period in a history of the learning part performing the capacity learning in the predetermined period.

5. The learning apparatus according to claim 4 ,

wherein the threshold determination part makes the threshold value smaller as the square sum of the difference charging rate becomes smaller.

6. The learning apparatus according to claim 1 ,

wherein the threshold determination part makes the threshold value smaller as the number of times becomes smaller.

7. The learning apparatus according to claim 1 , further comprising:

a determination part that determines whether the charging/discharging data is used as learning data of the capacity learning based on the threshold value,

wherein the learning part performs the capacity learning using the learning data based on a determination result of the determination part.

8. The learning apparatus according to claim 1 , further comprising:

a display control part that allows a display part to display a degradation degree of the secondary battery based on a result of the capacity learning.

9. The learning apparatus according to claim 1 ,

wherein the learning part compares a current maximum capacity indicating a current full-charge capacity of the secondary battery to an initial maximum capacity indicating an initial full-charge capacity of the secondary battery and calculates a ratio of the full-charge capacity indicating a degradation degree of the current full-charge capacity to the initial maximum capacity.

10. A learning apparatus, comprising:

a learning part that performs, based on charging/discharging data indicating at least one of charging and discharging of a secondary battery that supplies electric power for traveling of a vehicle, a capacity learning of the secondary battery and that performs the capacity learning in response to an average current that is indicated by the charging/discharging data exceeding a threshold value; and

a threshold determination part that determines the threshold value based on history information of the learning part performing the capacity learning in a predetermined period,

wherein the history information is a number of times the learning part performs the capacity learning in the predetermined period.

11. A learning apparatus, comprising:

a learning part that performs, based on charging/discharging data indicating at least one of charging and discharging of a secondary battery that supplies electric power for traveling of a vehicle, a capacity learning of the secondary battery and that performs the capacity learning in response to a change amount of a battery voltage that is indicated by the charging/discharging data exceeding a threshold value; and

a threshold determination part that determines the threshold value based on history information of the learning part performing the capacity learning in a predetermined period,

wherein the history information is a number of times the learning part performs the capacity learning in the predetermined period.

12. A learning method, by way of one or more computers, comprising:

performing, based on charging/discharging data indicating at least one of charging and discharging of a secondary battery that supplies electric power for traveling of a vehicle, a capacity learning of the secondary battery;

performing the capacity learning in response to a change amount of a charging rate that is indicated by the charging/discharging data exceeding a threshold value; and

determining the threshold value based on history information of performing the capacity learning in a predetermined period,

wherein the history information is a number of times for which the capacity learning is performed in the predetermined period.

13. A learning method, by way of one or more computers, comprising:

performing, based on charging/discharging data indicating at least one of charging and discharging of a secondary battery that supplies electric power for traveling of a vehicle, a capacity learning of the secondary battery;

performing the capacity learning in response to an average current that is indicated by the charging/discharging data exceeding a threshold value; and

determining the threshold value based on history information of performing the capacity learning in a predetermined period,

wherein the history information is a number of times for which the capacity learning is performed in the predetermined period.

14. A learning method, by way of one or more computers, comprising:

performing, based on charging/discharging data indicating at least one of charging and discharging of a secondary battery that supplies electric power for traveling of a vehicle, a capacity learning of the secondary battery;

performing the capacity learning in response to a change amount of a battery voltage that is indicated by the charging/discharging data exceeding a threshold value; and

determining the threshold value based on history information of performing the capacity learning in a predetermined period,

wherein the history information is a number of times for which the capacity learning is performed in the predetermined period.

15. A computer-readable non-transitory recording medium including a program causing one or more computers to execute:

performing, based on charging/discharging data indicating at least one of charging and discharging of a secondary battery that supplies electric power for traveling of a vehicle, a capacity learning of the secondary battery;

performing the capacity learning in response to a change amount of a charging rate that is indicated by the charging/discharging data exceeding a threshold value; and

determining the threshold value based on history information of performing the capacity learning in a predetermined period,

wherein the history information is a number of times for which the capacity learning is performed in the predetermined period.

16. A computer-readable non-transitory recording medium including a program causing one or more computers to execute:

performing, based on charging/discharging data indicating at least one of charging and discharging of a secondary battery that supplies electric power for traveling of a vehicle, a capacity learning of the secondary battery;

performing the capacity learning in response to an average current that is indicated by the charging/discharging data exceeding a threshold value; and

determining the threshold value based on history information of performing the capacity learning in a predetermined period,

wherein the history information is a number of times for which the capacity learning is performed in the predetermined period.

17. A computer-readable non-transitory recording medium including a program causing one or more computers to execute:

performing, based on charging/discharging data indicating at least one of charging and discharging of a secondary battery that supplies electric power for traveling of a vehicle, a capacity learning of the secondary battery;

performing the capacity learning in response to a change amount of a battery voltage that is indicated by the charging/discharging data exceeding a threshold value; and

determining the threshold value based on history information of performing the capacity learning in a predetermined period,

wherein the history information is a number of times for which the capacity learning is performed in the predetermined period.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 17, 2019
From: TSURUTANI, TAISUKE; KURACHI, TAISUKE
To: HONDA MOTOR CO., LTD.
Reel/Frame 050743/0786 →
Priority Claims (1)
JP JP2018-203208 · Oct 29, 2018 · national
Continuity (1)
Related Publication 20200130530A1 · Apr 30, 2020