Efficient management through monitoring of Li-ion batteries is critical to the progress of electro-mobility and energy storage globally, since the technology can be hazardous if pushed beyond its safety boundaries. Battery management systems (BMSs) are being actively improved to reduce size, weight, and cost while increasing their capabilities. Using power line communication, wireless monitoring, or hybrid data links are one of the most advanced research directions today. In this work, we propose the use of radio frequency (RF) transceivers as a communication unit that can deliver both wired and wireless services, through their superior analog and digital signal processing capability compared to PLC technology. To validate our approach computational simulation and empirical evaluation was conducted to examine the possibility of using RF transceivers on a direct current (DC) bus for wired BMS. A key advantage of this study is that it proposes a flexible and tested system for communication across a variety of network scenarios, where wireless data links over disrupted connections may be enabled by using this technology in short-range wired modes. This investigation demonstrates that the IEEE 802.15.4-compliant transceivers with operating frequencies of 868 MHz and 2.4 GHz can establish stable data links on a DC bus via capacitive coupling at high data rates.

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DC Power Line Communication (PLC) on 868 MHz and 2.4 GHz Wired RF Transceivers

As the RF communication on 18650 Li-ion cell level has not been reported due to its challenges and constrains, in this work, a valid wireless data link is demonstrated in an enclosed empty metal shell at 868 MHz and 2.4 GHz based on the IEEE 802.15.4 standard. The experimental tests are carried out using two generic unturned radiative structures, a wire loop fitted inside a cell shell, and an open terminal sub miniature version A (SMA), subsequently oriented vertically and horizontally relative to the ground plane. Based on signal strength indicator, bit error rate, and packet error rate, the test characterized a payload of 120 bytes at the highest speed of 150 kbps and 250 kbps supported by the IEEE 802.15.4 for the two communication frequencies. A MATLAB simulation is used in parallel to determine the three-dimensional radiative pattern of the two structures, whereas a three-ray model for multipath range propagation is implemented to complete the empirical experiments. It was demonstrated through testing communication of up to 10 m for both operating frequencies, proving the concept of wireless cell communication within short ranges, an essential feature for monitoring the health of each cell inside future electric vehicles (EVs).

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Wireless Communication Test on 868 MHz and 2.4 GHz from inside the 18650 Li-Ion Enclosed Metal Shell

One of the sectors which play a vital role in causing air pollution is transport sector. The air pollution results in change in climate due to emission of greenhouse gases. Mostly urban regions contiibute to more emissions. The global warming has made us to look ahead towards electrification in road transport. Electrification of vehicles replace the internal combustion engines with motors driven by electrical energy. Electric vehicle implies to be promising step towards confronting urban sustainability. Electric mobility technology has a exponential growth, therefore it becomes essential to increase the study about the changes. 

Evolution of Electric Vehicle-A Review

One of the sectors which play a vital role in causing air pollution is transport sector. The air pollution results in change in climate due to emission of greenhouse gases. Mostly urban regions contiibute to more emissions. The global warming has made us to look ahead towards electrification in road transport. Electrification of vehicles replace the internal combustion engines with motors driven by electrical energy. Electric vehicle implies to be promising step towards confronting urban sustainability. Electric mobility technology has a exponential growth, therefore it becomes essential to increase the study about the changes.

Charging an Electric Vehicle wirelessly is the latest technology being developed for the electric vehicles replacing the traditional way of plugging to the supply. In this paper, authors explained how to integrate Power Line Communication along with wireless power transfer in EV. The entire system is implemented in ADS simulation software. We are adapting to magnetic resonance coupling method for wireless power transfer in EV. The overall ideology of the project is to design an innovative system which involves higher power transfer and implement smart communication system between vehicle and the grid while following the latest magnetic resonance charging standards.,

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Sai Varun Alapati

Papers

Development of wireless charging system along with power line communication used in Electric Vehicles