Electro-Thermal Optimal Control for Driver-Centric DC Fast Charging of Electric Vehicles General Motors LLC

Format:

Book

Conference/Event

Author/Creator:

Gupta, Shobhit, author.

Contributor:

Kang, Jun-Mo

Lee, Chunhao

Zanardelli, Wesley

Zhu, Yongjie

Conference Name:

WCX SAE World Congress Experience (2025-04-08 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2025

Summary:

Charging a battery electric vehicle at extreme temperatures can lead to battery deterioration without proper thermal management. To avoid battery degradation, charging current is generally limited at extreme hot and cold battery temperatures. Splitting the wall power between charging and the thermal management system with the aim of minimizing charging time is a challenging problem especially with the strong thermal coupling with the charging current. Existing research focus on formulating the battery thermal management control problem as a minimum charging time optimal control problem. Such control strategy force the driver to charge with minimum time and higher charging cost irrespective of their driving schedule. This paper presents a driver-centric DCFC control framework by formulating the power split between thermal management and charging as an optimal control problem with the goal of improving the wall-to-vehicle energy efficiency. Proposed energy-efficient charging strategy would provide a solution as per the driver's itinerary or chosen charging time, allowing the driver to choose the trade-off between charging time and cost. A reduced order single particle model is used to model the battery states and limit the charging current, ensuring battery longevity. Detailed simulation study is performed to analyze the trade-off between the charging time and energy consumption

Notes:

Vendor supplied data

Publisher Number:

2025-01-8374

Access Restriction:

Restricted for use by site license