Development of Capacitive Pressure Sensor for Automotives

Measurement plays a crucial role in the precise and accurate management of automotive subsystems to enhance efficiency and performance. Sensors are essential for achieving high levels of accuracy and precision in control applications. Rapid technical advancements have transformed the automobile industry in recent years, and a wide range of novel sensor devices are being released to the market to speed up the development of autonomous vehicle technology. Nonetheless, stricter regulations for reliable pressure sensors in automobiles have resulted from growing legal pressures from regulatory bodies. This work proposes and investigates a tribo electric nano sensor that is affected by a changing parameter of the separation distance between the device's primary electrode and dielectric layers. The system is being modeled using the COMSOL multiphysics of electrostatics and the tribo-electric effect. Open circuit electric potential and short circuit surface charge density are two of the system's output properties. According to the analysis, the primary electrode with respect to the reference have a maximum open-circuit voltage potential of 310 V and a short-circuit surface charge density of 70pC, respectively. The suggested smart force sensor's sturdiness in terms of linearity, preciseness, and data transfer can be properly validated using the system that is being described.