COCO - Dynamically COnfigurable Battery COntrol

Purpose and goal

The project´s purpose is to develop control of dynamically configurable battery systems (DCBS). DCBS are different from traditional battery systems in that they consist of a large number of individually controllable modules with a relatively small energy content, in contrast to one large pack which controllability is restricted to on-or-off for the whole pack. The modules of a DCBS can be connected in series, in parallel, or be bypassed individually. The project will develop control and state estimation for DCBS, which will gain increased utilization, efficiency, and longevity.

Expected effects and result

The project is expected to generate new knowledge within fields that are directly related to the vehicle´s energy consumption. The expected results are insights into how future advanced drivelines should be controlled, and knowledge regarding what kind of increase in longevity and efficiency is possible through different configurable battery designs. The project will also contribute knowledge about how battery modules can be parameterized onboard vehicles, and how models and parameters can be continually updated as a result of battery aging.

Planned approach and implementation

The project will primarily be conducted by two PhD students, one of which will be an industry PhD student employed by Scania and associated with the Division of Vehicular Systems at LiU, and the other an academic PhD student employed by and associated with the Division for Applied Electrochemistry at KTH, as well as a senior researcher at LiU Vehicular Systems devoting 25% of the time to the project.