• • • ELECTRIC VEHICLES • • •
Enabling smart battery ecosystems solutions
Stephan Prüfling, product manager, battery management systems at AVL, and Norbert Bieler, director, business development e-mobility at Analog Devices, Inc, said electrification of passenger cars and commercial vehicles is entering a new phase of market penetration
T
he shift away from technology feasibility demonstration to the mass production of premium vehicles is obvious. The commercialisation of technology leads to more optimised and affordable vehicles. Nevertheless, most current generation electric vehicles (EVs) are still considered as expensive or less attractive when compared to conventional combustion engine cars. Consequently, cost reduction and improved performance are key to ensure a successful and sustainable market growth. Reduction of size, weight, and cost impacts the competitive edge of battery systems over a vehicle’s complete lifecycle.
16 ELECTRICAL ENGINEERING • JUNE 2023
On the other hand, the extension of the driving range will also have a significant impact on their market attractiveness and competitiveness. Furthermore, as the increasing numbers of EVs reach the end of their life, car manufacturers will even be competing for the value to be derived from second life batteries recovered from scrapped vehicles.
Out of this demand, news about battery innovations tends to highlight the new battery packaging concepts and new materials that might one day be able to store more charge than today’s lithium technology. A different part of the battery - the battery management system (BMS), which
monitors the state of charge (SOC) and state of health (SOH) of the battery - tends to go under the radar but needs to follow and support battery innovation.
Here, the new wireless BMS (wBMS) technology, developed by Analog Devices and pioneered by General Motors in its modular Ultium battery platform, is now released to mass production. The wBMS gives car manufacturers a new competitive edge across the whole of a battery’s life - starting from when battery modules are first assembled, to operation in an EV, beyond to disposal, and even, if needed, into the battery’s second life.
electricalengineeringmagazine.co.uk
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