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A multifunctional road-compatible piezoelectric energy harvester for autonomous driver-assist LED indicators with a self-monitoring system

机译：用于自主驱动辅助LED指示器的多功能道路兼容压电能源收割机，具有自监控系统

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摘要

The purpose of this research was to demonstrate a road-compatible piezoelectric energy harvester (RPEH) that uses the energy to power self-powered sensors and vehicle indicators. The demonstrated RPEH (20 x 50 x 10 cm(3)) with 80 piezoelectric devices can efficiently convert mechanical energy stemming from the small vertical displacement (1.45 mm) from vehicles into electrical power. The maximum voltage is 113.5 V, the maximum current is 25.71 mA, and the maximum power is 661 mW (6.61 W/m(2)) at an impedance resistance level of 0.9 k Omega under a z-axial load. The high-power RPEH was initially installed at a highway rest area. The measured output performances of the installed module on the actual roadway in the test setup area were a maximum voltage of 196 V and output power of 2080 mW (20.79 W/m(2)) at a vehicle speed of 30 km/h. Tests of the RPEH module demonstrate its ability to measure temperature, strain, and leakage values in real time and the generated energy provides sufficient power to illuminate LED indicators. It was also found that the z-axial loaded piezoelectric devices with a two-end fixed beam provide high output power with low levels of vertical displacement, making it highly efficient and durable for actual highway energy-harvesting applications.
机译：本研究的目的是展示一种使用能量来动力自动传感器和车辆指示器的道路兼容的压电能量收割机（RPEH）。具有80个压电器件的证明的RPEH（20×50×10cm（3））可以有效地将从车辆的小垂直位移（1.45mm）的机械能量转换为电力。最大电压为113.5V，最大电流为25.71 mA，最大功率为661mW（6.61W / m（2）），在Z轴向载荷下的阻抗电阻率为0.9kΩ。高功率RPEH最初安装在高速公路休息区。所安装模块在测试设置区域的实际巷道上的测量输出性能是196 V的最大电压，并以30 km / h的车速为2080 mw的输出功率（20.79 w / m（2））。 RPEH模块的测试证明了其测量温度，应变和实时泄漏值的能力，并且产生的能量提供足够的电力来照亮LED指示灯。还发现，具有双端固定光束的Z轴向负载压电装置，具有低水平的垂直位移，使其高效，使其高效且耐用于实际高速公路能量收集应用。

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