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

机译：具有自动监控系统的多功能道路兼容压电能量收集器，用于自动驾驶辅助LED指示器

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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：这项研究的目的是演示一种与道路兼容的压电能量收集器（RPEH），该能量收集器使用该能量为自供电传感器和车辆指示器供电。带有80个压电装置的RPEH（20 x 50 x 10 cm（3））可以将车辆很小的垂直位移（1.45 mm）产生的机械能有效地转换为电能。在z轴负载下的阻抗电阻水平为0.9 k Omega时，最大电压为113.5 V，最大电流为25.71 mA，最大功率为661 mW（6.61 W / m（2））。大功率RPEH最初安装在高速公路休息区。在30 km / h的车速下，测试设置区域中实际道路上已安装模块的测量输出性能为最大电压196 V和输出功率2080 mW（20.79 W / m（2））。 RPEH模块的测试表明它具有实时测量温度，应变和泄漏值的能力，并且所产生的能量提供了足够的功率来点亮LED指示器。还发现具有两端固定梁的z轴加载压电器件可提供高输出功率，且垂直位移水平小，从而使其在实际的公路能量收集应用中具有很高的效率和耐用性。

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