Magnetic-assisted self-powered vehicle motion sensor based on triboelectric nanogenerator for real-time monitoring of vehicle motion states

Xiaohui Lu^{¹^,^§}, Chunyang Wang^{¹^,²^,^§}, Hancheng Li^{¹^,^§}, Hengyu Li^², Wei Lv^³, Shitong Yang^¹, Shaosong Li^¹, Jianming Wen^⁴

(), Bangcheng Zhang^⁵(), Tinghai Cheng^{¹^,²}

()

1School of Mechatronic Engineering, Changchun University of Technology, Changchun 130012, China

2Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China

3Key Laboratory of Advanced Structural Materials, Ministry of Education and Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, China

4College of Engineering, Zhejiang Normal University, Jinhua 321004, China

5School of Mechanical and Electrical Engineering, Changchun Institute of Technology, Changchun 130103, China

^§ Xiaohui Lu, Chunyang Wang, and Hancheng Li contributed equally to this work.

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This paper proposes an integrated magnetic-assisted self-powered vehicle motion sensor (MSVMS) based on triboelectric nanogenerator for real-time monitoring of vehicle motion states. By constructing a vehicle motion sensing system and conducting real vehicle tests, the application of MSVMS in real vehicle operating environments is validated. This study provides useful guidance for the practical application of triboelectric sensors in vehicle sensors.

Abstract

The monitoring of vehicle motion states is a key factor to ensure smooth, safe, and efficient management of traffic in intelligent transportation systems. However, employing multiple sensors for vehicle motion states monitoring not only increases system costs but also complicates the wiring. Here, we propose an integrated magnetic-assisted self-powered vehicle motion sensor (MSVMS) based on a triboelectric nanogenerator for real-time monitoring of vehicle motion states, including acceleration, angular speed, and inclination angle. By introducing a magnetic repulsion adjustment system, the sensor can achieve automatic resetting and effectively monitor the vehicle’s motion state during normal driving. Experimental results indicate that the electromagnetic generator (EMG) unit can achieve a maximum peak power of 4.5 mW at an optimal load resistance of 1 kΩ. Meanwhile, the triboelectric nanogenerator (TENG) unit demonstrated good sensing performance for acceleration, angular speed, and inclination angle, with fitting coefficients of 0.99, 0.979, and 0.978, respectively. Finally, the feasibility of the MSVMS in monitoring acceleration magnitude and direction is verified in a vehicle motion sensing system and actual vehicle test scenarios. This work further validates the potential application prospects of MSVMS in intelligent transportation systems.

Keywords

triboelectric nanogenerator self-powered sensing magnetic repulsion adjustment system vehicle motion sensing system real-time monitoring

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References

[1]

Singh, K. B.; Arat, M. A.; Taheri, S. Literature review and fundamental approaches for vehicle and tire state estimation. Vehicle Syst. Dyn. 2019, 57, 1643–1665.