IP Library Granted Patent US 11,131,713
Granted Patent B2
US 11,131,713 · App. 16/273,505 · Granted Sep 28, 2021

Deep learning approach for battery aging model

Inventors: Ali Hooshmand (San Jose, CA); Mehdi Assefi (Sunnyvale, CA); Ratnesh Sharma (Freemont, CA)
G01R31/367G01R31/382G06F17/18G06N3/0454G06N3/084G06N20/20H01M10/4285
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 11,131,713
App. No.
16/273,505
Granted
Sep 28, 2021
Kind
B2
Abstract

A computer-implemented method predicting a life span of a battery storage unit by employing a deep neural network is presented. The method includes collecting energy consumption data from one or more electricity meters installed in a structure, analyzing, via a data processing component, the energy consumption data, removing one or more features extracted from the energy consumption data via a feature engineering component, partitioning the energy consumption data via a data partitioning component, and predicting battery capacity of the battery storage unit via a neural network component sequentially executing three machine learning techniques.

Claims (37)

1. A computer-implemented method executed on a processor for predicting a life span of a battery storage unit by employing a deep neural network, the method comprising:

collecting energy consumption data from one or more electricity meters installed in a structure;

analyzing, via a data processing component, the energy consumption data;

removing one or more features extracted from the energy consumption data via a feature engineering component;

partitioning the energy consumption data via a data partitioning component after removing the one or more features; and

predicting battery capacity of the battery storage unit via a neural network component sequentially executing three machine learning techniques,

wherein the first machine learning technique is multiple linear regression (MLR), the second machine learning technique involves a neural network model, and the third machine learning technique is a Long Short-Term Memory (LSTM) neural network model.

2. The method of claim 1 , wherein test set data in the MLR technique are normalized by using a mean and standard deviation of training data.

3. The method of claim 1 , wherein the neural network model is trained to predict a battery faded capacity percentage.

4. The method of claim 1 , wherein the LSTM neural network model includes a selection gate, a forgetting gate, and an ignoring gate, where all weights of a graph are calculated so that a loss value is minimized with every input.

5. The method of claim 1 , wherein the one or more features extracted from the energy consumption data include date, time, charging power, discharging power, maximum temperature, and battery state of charge (SoC).

6. The method of claim 5 , wherein energy throughput is calculated based on the charging power and the discharging power features.

7. A system for predicting a life span of a battery storage unit by employing a deep neural network, the system comprising:

a memory; and

a processor in communication with the memory, wherein the processor runs program code to:

collect energy consumption data from one or more electricity meters installed in a structure;

analyze, via a data processing component, the energy consumption data;

remove one or more features extracted from the energy consumption data via a feature engineering component;

partition the energy consumption data via a data partitioning component after removing the one or more features; and

predict battery capacity of the battery storage unit via a neural network component sequentially executing three machine learning techniques,

wherein the first machine learning technique is multiple linear regression (MLR), the second machine learning technique involves a neural network model, and the third machine learning technique is a Long Short-Term Memory (LSTM) neural network model.

8. The system of claim 7 , wherein test set data in the MLR technique are normalized by using a mean and standard deviation of training data.

9. The system of claim 7 , wherein the neural network model is trained to predict a battery faded capacity percentage.

10. The system of claim 7 , wherein the LSTM neural network model includes a selection gate, a forgetting gate, and an ignoring gate, where all weights of a graph are calculated so that a loss value is minimized with every input.

11. The system of claim 7 , wherein the one or more features extracted from the energy consumption data include date, time, charging power, discharging power, maximum temperature, and battery state of charge (SoC).

12. The system of claim 11 , wherein energy throughput is calculated based on the charging power and the discharging power features.

13. A non-transitory computer-readable storage medium comprising a computer-readable program for predicting a life span of a battery storage unit by employing a deep neural network, wherein the computer-readable program when executed on a computer causes the computer to perform the steps of:

collecting energy consumption data from one or more electricity meters installed in a structure;

analyzing, via a data processing component, the energy consumption data;

removing one or more features extracted from the energy consumption data via a feature engineering component;

partitioning the energy consumption data via a data partitioning component after removing the one or more features; and

predicting battery capacity of the battery storage unit via a neural network component sequentially executing three machine learning techniques,

wherein the one or more features extracted from the energy consumption data include date, time, charging power, discharging power, maximum temperature, and battery state of charge (SoC).

14. The non-transitory computer-readable storage medium of claim 13 , wherein the first machine learning technique is multiple linear regression (MLR), the second machine learning technique involves a neural network model, and the third machine learning technique is a Long Short-Term Memory (LSTM) neural network model.

15. The non-transitory computer-readable storage medium of claim 14 , wherein test set data in the MLR technique are normalized by using a mean and standard deviation of training data.

16. The non-transitory computer-readable storage medium of claim 14 , wherein the neural network model is trained to predict a battery faded capacity percentage.

17. The non-transitory computer-readable storage medium of claim 14 , wherein the LSTM neural network model includes a selection gate, a forgetting gate, and an ignoring gate, where all weights of a graph are calculated so that a loss value is minimized with every input.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 19, 2026
From: NEC CORPORATION
To: NEC ASIA PACIFIC PTE LTD.
Reel/Frame 074128/0547 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 20, 2021
From: NEC LABORATORIES AMERICA, INC.
To: NEC CORPORATION
Reel/Frame 057238/0090 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 12, 2019
From: HOOSHMAND, ALI; ASSEFI, MEHDI; SHARMA, RATNESH
To: NEC LABORATORIES AMERICA, INC.
Reel/Frame 048309/0078 →
Continuity (2)
Provisional Application 62633156 · Feb 21, 2018
Related Publication 20190257886A1 · Aug 22, 2019
Cited By (3)
US 12,228,613 US 12,466,289 US 12,699,138