Vehicle fuel pump service life evaluation using on-board diagnostic (OBD) data

The electronic fuel injection system is the most common fuel supply systems in vehicles today. Whereas the fuel pump is one of the key components in the electronic fuel injection system. Once the fuel pump is out of service, the engine will stop operating immediately. However, it does not have an effective method to evaluate the lifetime of a using fuel pump. To increase the reliability of the electronic fuel injection system, this paper proposed a novel vehicle fuel pump early warning system using on-board diagnostic (OBD) data. The proposed system makes use of vehicle speed as well as revolutions per minute (rpm) of engine to calculate the fuel pump runtime parameters. Then one can determine the remained lifetime of the fuel pump and give an early warning indicator to user when its remained lifetime is to be close to zero. The proposed system has commercial potential in the field of vehicle repair service application.