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V2X Communication Protocols to Enable EV Battery Capacity Measurement: A Review
Technical Paper
2024-01-2168
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The US EPA and the California Air Resources Board (CARB) require electric vehicle range to be determined according to the Society of Automotive Engineers (SAE) surface vehicle recommended practice J1634 - Battery Electric Vehicle Energy Consumption and Range Test Procedure. In the 2021 revision of the SAE J1634, the Short Multi-Cycle Test (SMCT) was introduced. The proposed testing protocol eases the chassis dynamometer test burden by performing a 2.1-hour drive cycle on the dynamometer, followed by discharging the remaining battery energy into a battery cycler to determine the Useable Battery Energy (UBE). Opting for a cycler-based discharge is financially advantageous due to the extended operating time required to fully deplete a 70-100kWh battery commonly found in Battery Electric Vehicles (BEVs). This paper provides a review of the communication protocols enabling V2X (Vehicle to X, where X can be grid, vehicle, building, etc.) power transfer and the tools required to initiate, control, and terminate the vehicle testing procedure as per SAE J1634. The primary focus is on the series of ISO 15118 standards for road vehicles - vehicle to grid communication interface and SAE J2847/2 (Surface vehicle standard for communication between plug-in vehicles and off-board DC chargers).
Authors
Citation
Roy, A., Siegel, J., Bhagdikar, P., Gankov, S. et al., "V2X Communication Protocols to Enable EV Battery Capacity Measurement: A Review," SAE Technical Paper 2024-01-2168, 2024.Also In
References
- Volta Foundation 2022 )
- U.S. Department of Energy 2023
- Federal Reserve Bank of Dallas 2023
- Electric Power Research Institute Inc 2021 Project ID ELT187 (energy.gov
- Electrification Coalition 2022
- Jaman , S. , Verbrugge , B. , Garcia , O.H. , Abdel-Monem , M. et al. Development and Validation of V2G Technology for Electric Vehicle Chargers Using Combo CCS Type 2 Connector Standards Energies 15 19 2022 7364 https://doi.org/10.3390/en15197364
- SAE International Surface Vehicle Recommended Practice Jul. 2017
- BSI Standards Publication Apr. 2016
- SAE International Surface Vehicle Standard Feb. 2016
- BSI Standards Publication May 2022
- SAE International Surface Vehicle Information Report Dec. 2014
- SAE International Surface Vehicle Information Report Oct. 2014
- SAE International Surface Vehicle Standard Apr. 2015
- BSI Standards Publication Apr. 2016
- Tesla 2022 https://www.tesla.com/blog/opening-north-american-charging-standard
- BSI Standards Publication Nov. 2022
- DIN Dec. 2014
- SAE International Surface Vehicle Technical Information Report Jul. 2018
- SAE International Surface Vehicle Information Report Oct. 2017
- IEEE Standards Association TM Feb. 2018
- BSI Standards Publication May 2019
- BSI Standards Publication Jul. 2022
- Forbes forbes.com