Development of fuel injector monitoring using strain gauge signal

Abstract

The Fuel injector is an important component in a vehicle engine for determining the performance of an engine. It is believed that, by knowing the current state of the injector, one can take any prior safety measure and ensuring the optimal performance of the engine. However, it is very difficult to study and analyze the fuel injection system in real time during the operation of the vehicle. A study was conducted in developing a method to monitor the fuel injector using the strain signal generated from the strain gauge sensors installed on the fuel injector. This method is practically implementable and can be used on the actual operation of the engine. A research rig was developed in order to visualize the behavior of the injector at any instant by obtaining the three key parameters from the strain gage sensors which are the pulse width (MS), frequency (Hz) and pressure (bar). All data obtained from this experiment will be analyzed using the Mat lab software, where the I-kaz (Z') will be applied as the main method to clearly visualize the operation of the machine. The result shows that for the same pulse width and pressure