Paper Title
Application of a PIC Microchip on Developing an Adaptive Driving Module for the GDI Injector

Abstract
In GDI engine applications high-pressure (H.P.) injectors typically require to be designed to be capable of rapid response for GDI engines in order to be driven in the rapid response with respect to magnetic actuators, allowing for example more precise air-fuel ratio control in the same motor cycle. In this paper, a PIC microchip for programminginjector drives circuitsis implemented to improve the performance of a GDI engineand tested to verify its feasibility. In the proposed injector drive circuit, powers MOSFETs directly controlthe charging/discharging current by a dsPIC30F4011microchip. Design and analysis of the proposed injector drive circuit are presented. The measured data of the H.P. injector fed by the injector driving circuit are defined as the fuel injection curves. Finally experimental results are provided for verification of the proposed injector drive circuit. Index Terms - Dspic30f4011 Microchip, Injector drive circuit, Gasoline direct injection (GDI), Mechatronics