The BMS is a vital component of an electric vehicle (EV), monitoring and measuring the battery, including state of health and state of charge, to improve EV range. BMS designs are complex and differ by manufacturer, therefore development and testing of the BMS needs to be streamlined to expedite time to market.

In a pilot project, comemso and Texas Instruments demonstrate how a BMS, based on a development platform from Texas Instruments (TI), can be fully developed and tested with a comemso BMS test system. The new graphical interface gives developers the ability to control and observe every detail of the EV BMS development platform from TI and comemso’s BMS test platform with the cell emulation in a single view.

Technology trends evolving today’s BMS architecture

"We are increasingly receiving customer requests that include not only test solutions, but also application development support," says Anita Athanasas, head of sales at comemso. "We noticed that for many customers it is complex to define their test requirements, map the test parameters and evaluate them," Athanasas continues. "This is why we created a holistic integration by showing examples with TI so that all important parameters can be represented in one application."

Showing examples of BMS development with cutting-edge technologies from TI

“At TI, we know the right tools and support help make innovation possible. Our broad portfolio of semiconductor devices for BMS—coupled with comemso’s proven results and accuracy with their battery cell simulator—helps accelerate design time. Comemso offers the ability to test and measure your system at a cell level with high precision,” says Mark Ng, general manager for HEV/EV powertrain at TI.

The result of this project provides an entry into BMS development and testing with the development platform from TI and a modular and expandable BMS test bench from comemso. This is rounded off with a combined visualization of the graphical operating and display parameters of both areas for the test engineer. Significant time and cost savings during the development and test phase, as well as reduction of many hurdles and unknowns in the project and development planning, are the advantages for BMS developers and manufacturers from this project.