Remapping and simulation of EFI system for SI engine using piggyback ECU

Electronic fuel injection (EFI) is a complex system, many parts are connected together from mechanical to electronic control the internal combustion engine. It must ensure different works and most important thing in motorsport achieve power optimization. High engine responsiveness often desired gain competitive edge. Usually enthusiast will upgrade car standard with aftermarket components such as higher rating turbo, longer duration camshafts exhaust system. These difficult approach, time-consuming expensive tasks compared ECU calibration method. And Vietnam, customers who want change vehicle performance based on Remap method Factory ECU. By using regulation piggy-back ECU, it easier for user adjust than popular With advantages low cost easy installation. currently there very few documents describing evaluating effectiveness of installed vehicles. So this paper, experimentally reconstruct system was performed, then simulated algorithms LabVIEW results experiment, simulation model operation algorithm EFI cases load engines speeds. Simulation used evaluate