Energy Harvesting and Wireless Torque Sensor System for Vehicles

Description

The objective of this project is to develop a real-time torque monitoring system that can be used in the transmission system of running vehicles. The novel features of the new torque sensor system mainly include wireless communication, self- power generation, small size, and low cost. Accurate torque measurement enhances vehicle performance in many aspects such as engine calibration, fuel efficiency, driving comfort, and maneuverability. However, though torque sensors have been widely used in the development stage of vehicles, there are very few technologies that can be applied in normal vehicle operations. With the fast development of emerging automotive technologies such as new-energy vehicles and self-driving technology, the need for torque monitoring is becoming increasingly pressing. This project aims to fill this technology gap and promote the development of intelligent vehicles. The proposed self-powered wireless torque sensor system will be mounted to the clutch and driveline shafts in vehicles, where untapped vibration energy will be captured and converted to electricity by the embedded energy harvesters. High-efficiency circuits and low-power sensors will be developed to achieve energy, processing and communication autonomy without wire connections. The implementation of this project will promote technology innovations and upgrading in the automotive business of Hong Kong.