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Design and Development of Power Boost System for Improving EV Startup Torque Under Dynamic Load
Subject area: Science,Engineering and Technology · Area of research: Power Electronics (Motor Control Unit)
DOI: 10.64388/IREV10I4-1723944
Abstract
Electric vehicles (EVs) are increasingly adopted due to their high efficiency, low emissions, and sustainable transportation benefits. However, one of the major challenges faced by EVs is reduced startup performance, particularly in the low-speed range of 0-30 km/h. This limitation arises because conventional battery systems are unable to deliver very high instantaneous current during vehicle launch, resulting in lower initial torque and sluggish acceleration. Such behaviour negatively affects rider experience, especially in urban traffic conditions where rapid and responsive take-off is essential. This paper presents an innovative startup torque-boosting system designed to enhance the launch performance of electric vehicles without compromising battery safety or reliability. The proposed system provides a controlled high-power surge for a very short duration of 50–100 milliseconds during vehicle startup. This temporary boost supplies additional current to the motor, significantly increasing the available electromagnetic torque and improving vehicle responsiveness. The system is automatically activated through a push-button trigger and is governed by a precision timer circuit that disables the boost after the predefined interval, ensuring a seamless transition back to normal battery operation with no noticeable interruption to the rider. To manage the high transient current, the design incorporates high-current MOSFET-based switching devices with fast response characteristics and low conduction losses. Advanced current-limiting and protection circuits are implemented to prevent excessive battery stress, overcurrent conditions, and thermal overload.
Keywords
battery; motor control; motor; boost switch; supercapacitor
References
[1] Tong Y, Salhi I, Wang Q, Lu G, Wu S. Bidirectional DC-DC converter topologies for hybrid energy storage systems in electric vehicles: A comprehensive review. Energies. 2025;18(9):2312.
[2] Ahmed S, Sospiro P, Gulino MS, Laschi M, Vangi D, Bregoli D. Hybrid energy storage systems as circular and sustainable enablers for electric mobility: A comparative assessment of batteries and supercapacitors. Sustainability. 2026;18(6):2686. https://doi.org/10.3390/su18062686
[3] Arinze SN, Nwajana AO. AI-driven hybrid battery-supercapacitor systems for electric vehicles: Performance analysis and opportunities. World Electric Vehicle Journal. 2026;17(7):380. https://doi.org/10.3390/wevj17070380
[4] Guo J, Ji Y. Strategy of battery-supercapacitor hybrid energy storage for voltage stabilization of electric vehicle. International Journal of Low-Carbon Technologies. 2026;21:ctag059. https://doi.org/10.1093/ijlct/ctag059
[5] Liu W, Li Y, Luo L, Du P. Research on hybrid energy storage technology with supercapacitors and batteries in parallel. Journal of Power and Energy Engineering. 2025;13(6):138–146.
[6] Hema R, Venkatarangan MJ. Dynamic modelling of hybrid supercapacitor-battery energy storage for electric vehicles. SSRG International Journal of Electrical and Electronics Engineering. 2025;12(11):86–103.
[7] Kumar S, Rai AK. Review of hybrid energy storage system for enhanced EV performance. International Journal of Recent Development in Engineering and Technology. 2025;14(2).
[8] Anand UK, Vishwakarma SK. Review of battery and supercapacitor based hybrid energy storage system for electric vehicles. International Journal of Recent Development in Engineering and Technology. 2025;14(1).
[9] [Authors not supplied]. Hybrid energy storage system for intelligent electric vehicles. Energy Informatics. 2025.
[10] [Authors not supplied]. Decision-flux optimization-based energy management for battery-supercapacitor hybrid energy storage systems in electric vehicles. Scientific Reports. 2026. https://doi.org/10.1038/s41598-026-57560-9
How to cite this paper
@article{1723944,
author = {Shrikant Kumar Singh},
title = {Design and Development of Power Boost System for Improving EV Startup Torque Under Dynamic Load},
journal = {Iconic Research And Engineering Journals},
year = {2026},
volume = {10},
number = {4},
pages = {1929-1961},
issn = {2456-8880},
url = {https://www.irejournals.com/formatedpaper/1723944.pdf},
abstract = {Electric vehicles (EVs) are increasingly adopted due to their high efficiency, low emissions, and sustainable transportation benefits. However, one of the major challenges faced by EVs is reduced startup performance, particularly in the low-speed range of 0-30 km/h. This limitation arises because conventional battery systems are unable to deliver very high instantaneous current during vehicle launch, resulting in lower initial torque and sluggish acceleration. Such behaviour negatively affects rider experience, especially in urban traffic conditions where rapid and responsive take-off is essential.
This paper presents an innovative startup torque-boosting system designed to enhance the launch performance of electric vehicles without compromising battery safety or reliability. The proposed system provides a controlled high-power surge for a very short duration of 50–100 milliseconds during vehicle startup. This temporary boost supplies additional current to the motor, significantly increasing the available electromagnetic torque and improving vehicle responsiveness. The system is automatically activated through a push-button trigger and is governed by a precision timer circuit that disables the boost after the predefined interval, ensuring a seamless transition back to normal battery operation with no noticeable interruption to the rider. To manage the high transient current, the design incorporates high-current MOSFET-based switching devices with fast response characteristics and low conduction losses. Advanced current-limiting and protection circuits are implemented to prevent excessive battery stress, overcurrent conditions, and thermal overload.},
keywords = {battery; motor control; motor; boost switch; supercapacitor},
month = {October},
doi = {https://doi.org/10.64388/IREV10I4-1723944}
}