Battery technology is the key bottleneck in many cyberphysical systems (CPS). For green-energy CPS transportation applications, such as hybrid electrical vehicles (HEVs) and plug-in HEVs (PHEVs), the battery system design is mostly based on lithium-ion rechargeable electrochemical battery technology, which is bulky, expensive, unreliable, and is the primary roadblock for PHEV adoption and marke...

The ability to quickly evaluate the remaining charge in a fielded battery and to reliably identify batteries that have reduced capacity with the potential for failure are the hallmarks of battery prognostics applications. Modern war fighters depend heavily on the availability of reliable battery power for their communications, night vision, fire control, and perimeter security systems. Any unce...

Electrochemical energy storage systems are categorized into different types, according to their mechanisms, including capacitors, supercapacitors, batteries and fuel cells. All battery systems include some main components: anode, cathode, an aqueous/non-aqueous electrolyte and a membrane that separates anode and cathode while being permeable to ions. Being one of the key parts of any new electr...

Modeling Battery Behavior for Accurate State-of-Charge Indication V. Pop,* H. J. Bergveld, J. H. G. Op het Veld, P. P. L. Regtien, D. Danilov,** and P. H. L. Notten** Measurement and Instrumentation, University of Twente, 7500 AE, Enschede, The Netherlands Philips Research Laboratories, Mixed-Signal Circuits and Systems, 5656 AE, Eindhoven, The Netherlands Philips Research Laboratories, System ...

The main purpose of this paper is to design a charge equalization circuit for series connected lead-acid batteries. The charger utilizes a three-level neutral point clamped (NPC) AC/DC converter with voltage balance control to charge the series connected rechargeable battery strings. This paper details the operation principles of the charge equalization circuit under different operation modes a...

This paper presents the development of a prototype weather station to measure the following weather data: air temperature, relative humidity, dew point, wind speed, and rainfall. The weather station, which has been designed for remote operation, performs automatic or unmanned measurements of weather data and transmits it wirelessly to a PC for logging and display by means of a graphical user in...

This paper presents an overview of the control and management requirements of high power lithiumbased batteries for electric and hybrid electric vehicle systems. Lithium based battery technologies offer performance advantages over traditional battery technologies at the cost of increased monitoring and controls overhead. The additional complexity of the hybrid drive system increases the managem...

Introduction Rechargeable batteries are present in a variety of devices. The act of recharging them generally involves a charger wired to a wall outlet being plugged into the device. The charger can determine the type of charge the batteries receive and therefore determine the cycle life of the batteries. Wireless power transfer is on the cutting edge of the battery charging world. There are el...

The battery lifetime of mobile devices depends on the usage pattern of the battery, next to the discharge rate and the battery capacity. Therefore, it is important to include the usage pattern in battery lifetime computations. We do this by combining a stochastic workload, modeled as a continuous-time Markov model, with a well-known battery model. For this combined model, we provide new algorit...

Predicting whether or not vehicle batteries contain sufficient charge to support operations over the remainder of a given flight plan is critical for electric aircraft. This paper describes an approach for identifying upper and lower uncertainty bounds on predictions that aircraft batteries will continue to meet output power and voltage requirements over the remainder of a flight plan. Battery ...