IP Library Granted Patent US 11,376,981
Granted Patent B2
US 11,376,981 · App. 16/786,803 · Granted Jul 5, 2022

Systems and methods for adaptive EV charging

Inventors: Zachary J. Lee (Pasadena, CA); Tongxin Li (Pasadena, CA); Steven H. Low (La Canada, CA); Sunash B. Sharma (Pasadena, CA)
Assignee: California Institute of Technology
B60L53/62B60L53/51B60L53/60B60L53/63B60L53/64B60L53/67B60L53/68Y02T10/70Y02T10/7072Y02T90/12Y02T90/16Y02T90/167Y04S30/12
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Quick Facts
Patent No.
US 11,376,981
App. No.
16/786,803
Granted
Jul 5, 2022
Kind
B2
Abstract

Systems and methods in accordance with embodiments of the invention impalement adaptive electric vehicle (EV) charging. One embodiment includes one or more electric vehicle supply equipment (EVSE); an adaptive EV charging platform, including a processor; a memory containing: an adaptive EV charging application; a plurality of EV charging parameters. In addition, the processor is configured by the adaptive EV charging application to: collect the plurality of EV charging parameters from one or more EVSEs, simulate EV charging control routines and push out updated EV charging control routines to the one or more EVSEs. Additionally, the adaptive EV charging platform is configured to control charging of EVs based upon the plurality of EV charging parameters collected from at least one EVSE.

Claims (37)

1. An adaptive electric vehicle charging system, comprising:

one or more electric vehicle supply equipment (EVSE);

an adaptive electric vehicle (EV) charging platform, comprising:

a processor; and

a memory containing an adaptive EV charging application executable by the processor to:

collect a plurality of EV charging parameters from the one or more EVSE,

simulate EV charging control routines, and

push out updated EV charging control routines to the one or more EVSE,

wherein the adaptive EV charging platform is configured to control charging of EVs based upon the plurality of EV charging parameters collected from at least one EVSE, and

wherein the EV charging parameters include an underlying distribution of EV arrival time, session duration, and energy delivered using Gaussian mixture models (GMMs).

2. The adaptive electric vehicle charging system of claim 1 , wherein the GMMs are used to predict EV users' charging behavior.

3. The adaptive electric vehicle charging system of claim 1 , wherein the adaptive EV charging application is further executable by the processor to use the GMMs to control charging of large numbers of EVs in order to smooth a difference in electricity demand and amount of available solar energy throughout the day (Duck curve).

4. The adaptive electric vehicle charging system of claim 1 , wherein the adaptive EV charging application is further executable by the processor to train the GMMs based on a training dataset and predict a charging duration and energy delivered.

5. The adaptive electric vehicle charging system of claim 1 , wherein the GMMs are population-level GMMs (P-GMM).

6. The adaptive electric vehicle charging system of claim 1 , wherein the GMMs are individual-level GMMs (I-GMM).

7. The adaptive electric vehicle charging system of claim 1 , further comprising a power distribution network.

8. The adaptive electric vehicle charging system of claim 1 , wherein the plurality of EV charging parameters comprises EV driver laxity data.

9. The adaptive electric vehicle charging system of claim 1 , wherein the adaptive EV charging application is further executable by the processor to:

receive an EV request for charging,

determine an amount of energy and a duration for delivering the amount of energy to the EV,

optimize time-varying charging rate based on time of day and electric system load, and

synchronize with one or more EVSE to deliver optimum charge to the EV.

10. An adaptive electric vehicle charging platform, comprising:

a processor; and

a memory containing an adaptive EV charging application executable by the processor to:

collect a plurality of EV charging parameters from the one or more EVSE, simulate EV charging control routines, and push out updated EV charging control routines to the one or more EVSE,

receive an EV request for charging,

determine an amount of energy and a duration for delivering the amount of energy to the EV,

optimize time-varying charging rate based on time of day and electric system load,

synchronize with an electric vehicle charging station to deliver optimum charge to the EV, and

learn an underlying distribution of EV arrival time, session duration, and energy delivered using Gaussian mixture models (GMMs).

11. The adaptive electric vehicle charging platform of claim 10 , wherein the GMMs are used to predict EV users' charging behavior.

12. The adaptive electric vehicle charging platform of claim 10 , wherein the adaptive EV charging application is further executable by the processor to train the GMMs based on a training dataset and predict a charging duration and energy delivered.

13. The adaptive electric vehicle charging platform of claim 10 , wherein the adaptive EV charging application is further executable by the processor to learn an underlying model of an electric vehicle's battery charging behavior.

14. The adaptive electric vehicle charging platform of claim 10 , wherein the adaptive EV charging application is further executable by the processor to learn battery models based on a training dataset, and to predict a maximum charging rate and threshold state of charge for a linear 2 -stage battery model.

15. The adaptive electric vehicle charging platform of claim 10 , wherein the adaptive EV charging application is further executable by the processor to use learned battery models to simulate EV charging control routines.

16. The adaptive electric vehicle charging platform of claim 10 , wherein the adaptive EV charging application is further executable by the processor to use learned battery models to predict energy delivered.

Assignments (3)
CONFIRMATORY LICENSE Recorded May 10, 2023
From: CALIFORNIA INSTITUTE OF TECHNOLOGY
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 063591/0741 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 14, 2021
From: LEE, ZACHARY J.; LI, TONGXIN; LOW, STEVEN H.; SHARMA, SUNASH B.
To: CALIFORNIA INSTITUTE OF TECHNOLOGY
Reel/Frame 056591/0885 →
CONFIRMATORY LICENSE Recorded Nov 16, 2020
From: CALIFORNIA INSTITUTE OF TECHNOLOGY
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 054381/0078 →
Continuity (3)
Provisional Application 62803157 · Feb 8, 2019
Provisional Application 62964504 · Jan 22, 2020
Related Publication 20200254896A1 · Aug 13, 2020
Cited By (2)
US 12,470,079 US 12,561,544