Instant-Incidental-Close-Loop Modeling to Optimize Battery Life on Autonomous Electric Boat

Abstract

This paper presents a simple new idea for modeling the duty cycle regulation method used by the instantaneous incidental closed loop (IICL) scheme to regulate the current flow in a circuit that serves as a power consuming load, facilitating a fast and smooth transition from open loop to closed loop power supply for a Mini Autonomous Electric Boat (MAEB). The algorithm embedded in the microcontroller that regulates the duty cycle transition regulation on wireless sensors in a closed loop circuit using batteries is named the “Switching Time Controlled to Get End Point and Average Duty Cycle” (STEADY) algorithm. The advantages of the STEADY algorithm are low memory usage, which is 4 Kbyte, or 12.5% of the 32 Kbyte available memory slot, simplicity, and easy implementation on a microcontroller device. Final testing of the IICL modeling using the STEADY algorithm on a wireless DC voltage sensor shows a battery life of 44.78 times longer and 54.31 times more efficient compared to the continuous active mode in the closed loop.

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