Design and Development of a Scalable EV Battery Tester/Emulator Including Health-conscious Cell Modeling

With e-transportation gaining traction within Canada (and N. America), the demand for superior battery performance over a range of operating conditions is garnering interest; especially over varied temperatures (-40ºC to +65ºC). The EV industry is finding it impractical to prove performance over a wide variety of state-of-charge (SOC) and state-of-health (SOH). Instead, testing can be performed using a single cell; however, this requires accurate SOC information, whereby the battery must be charged/discharged often, which is tedious. The idea is to use a smart battery emulator/tester, which will significantly reduce testing time and create a safer testing environment. Moreover, the emulator/tester will also provide more repeatable results compared to a real battery. This project deals with the design and development of an advanced battery emulator/tester, which is scalable from cell-level to module-level (extended to packs), keeping battery health as a priority – this has never been done for battery testers before.

Faculty Supervisor:

Sheldon Williamson

Student:

Partner:

D&V Electronics

Discipline:

Engineering

Sector:

Manufacturing

University:

University of Ontario Institute of Technology

Program: