Leading the Electric Vehicle Charge

For every product powered by batteries — cellphones, hybrid and electric vehicles, implantable medical devices, drones, industrial equipment — there is an end user who is concerned about a battery’s longevity. Whether you are trying to find an outlet to check your emails before your cellphone dies, wondering how many miles your drone can fly before it falls from the sky, or hoping to delay the surgical procedure needed to change the battery in your implanted defibrillator, battery longevity affects us all at one time or another.

NEVS electric vehicle

Electric vehicle engineers devote a lot of time and effort to maximizing the distance a vehicle can travel on a single charge, so they have developed smart battery management systems (BMS) with sensors and control software that constantly monitor the state of the battery and direct its operation. The BMS uses sophisticated algorithms to monitor the battery’s state-of-charge (SOC) and temperature, and to protect it against over-charge, over-discharge, short circuits, overheating, ground-faults and other problems.

While modeling has routinely been used in BMS development in recent years, the standard modeling software requires manual handling of the embedded code many times during the testing phase. To avoid the need for manual tests of code, NEVS engineers chose ANSYS SCADE Suite, with its fully automated generation and testing of embedded code that is certified for ISO 26262 applications up to ASIL D, the highest safety requirement for automotive applications. The engineers reported a greatly accelerated BMS development process using SCADE, with an estimated 30 percent productivity gain.

battery management functionality diagram

Overview of battery management system functionality.
Information courtesy Fraunhofer IISB.

To learn more about how NEVS electric vehicle engineers achieved these dramatic improvements, read the article in the latest issue of ANSYS Advantage.

This entry was posted in Automotive, Embedded Software and tagged , , , , by Sandeep Sovani. Bookmark the permalink.

About Sandeep Sovani

Dr. Sandeep Sovani is Director for the global automotive industry at ANSYS. He holds a B.E in Mechanical Engineering from University of Pune, India, M.Tech., from Indian Institute of Technology Chennai, India and Ph.D. from Purdue University, USA. Dr. Sovani has been actively involved in various areas of automotive technology and business for two decades. Dr. Sovani has previously worked with Tata Motors, India. Under a grant from the Cummins Engine Company, he has conducted research on IC Engines at Purdue University and recently served as an Adjunct Professor of Engineering at Lawrence Technological University, Michigan, USA. Dr. Sovani has authored more than 40 papers, articles, reports and has delivered numerous invited lectures at academic and industry conferences. He is the recipient of Lloyd Withrow Distinguished Speaker Award from SAE International (Society of Automotive Engineers). Dr. Sovani is also the founder of Hybrid Electric Vehicles Michigan group, a professional networking group of HEV engineers, and its sister groups in Brazil and UK. Dr. Sovani presently is member of SAE International and serves as a technical session chair and organizer on the society’s vehicle aerodynamics committee. Dr. Sovani is also a member of the American Society of Mechanical Engineers (ASME), Sigma Xi, MENSA International, and other societies.