Category Archives: News2021

Congratulations to Renato for receiving the Future Faculty Fellowship (FFF)

Renato is awarded the Future Faculty Fellowship on 8/2021.

Future Faculty Fellowships have a twofold purpose.  They are intended to attract outstanding students to Temple University and to diversify the American professoriate.  While already a national leader in the training of graduate students from traditionally underrepresented groups, including ethnic minorities and women, Temple University is committed to doing all it can to diversify its graduate population and the professoriate.  Candidates are newly admitted graduate students from underrepresented groups in the applicant’s discipline who show exceptional leadership and/or have overcome significant obstacles in pursuing an academic career.

https://www.temple.edu/gradarchives/11-12/grad/fff/index.htm

Omidreza is presenting at ECC’21

We present a matrix form for adaptive control with network control systems. We address the problem of controlling systems with linear dynamics with unknown parameters over a network. The dynamical system can be unstable subject to network delays. The delays are introduced due to the presence of several control and non-control applications in the network control system. We show the effectiveness of the algorithm through a simulation study on a Control Area Network (CAN bus).

Omidreza Ahmadzadeh, Damoon Soudbakhsh, “Adaptive Control of Network Control Systems”, ECC2021

Publication Alert: Mohsen and Andrew’s paper to appear in Letter Dyn. Sys. Control

Derakhshan, Mohsen, Mehdi Gilaki, Andrew Stacy, Elham Sahraei, and Damoon Soudbakhsh. “Bending Detection of Li-Ion Pouch Cells Using Impedance Spectra.” ASME L in Dynamic Systems and Control 1, no. 3 (2021): 031005.

Bending Pouch Cells

Read more

Li-ion batteries are the preferred choice of energy storage in many applications. However, the potential for fire and explosion due to mechanical damage remains a safety concern. Currently,
there are no criteria for the extent of the mechanical damage under which the batteries are safe to use. Here, we investigate the effects of bending damage to Li-ion cells on their impedance spectra. After the initial characterization of four Li-ion pouch cells, one of the cells underwent a three-point bending load. We measured the impedance spectra of this cell after each increment of loading. The impedance data of the control group cells were collected at the same intervals as the damaged cell. A distributed equivalent circuit model (dECM) was developed using the data from the electrochemical impedance spectroscopy (EIS) procedure. We observed that several model parameters such as the magnitude of constant phase elements had similar trends in the control cells and the bent cell. However, some model parameters such as resistances in parallel with constant phase elements, and the inductor showed dependency on the extent of the damage. These results suggest the potential for use of such parameters as an indicator of mechanical damage when visual inspection of cells is not possible in a battery pack set-up. Future steps include investigation of similar trends for other commercial batteries, chemistries, and form factors to verify the applicability of the
current findings in a broader context.

https://asmedigitalcollection.asme.org/lettersdynsys/article/1/3/031005/1094059/Bending-Detection-of-Li-Ion-Pouch-Cells-Using