Virtual engine management simulator for educational purposes

Abstract

Abstract. This simulator was conceived as a software program capable of generating complex control signals, identical to those in the electronic management systems of modern spark ignition or diesel engines. Speed in rpm and engine load percentage defined by throttle opening angle represent the input variables in the simulation program and are graphically entered by two-meter instruments from the simulator central block diagram. The output signals are divided into four categories: synchronization and position of each cylinder, spark pulses for spark ignition engines, injection pulses and, signals for generating the knock window for each cylinder in the case of a spark ignition engine. The simulation program runs in real-time so each signal evolution reflects the real behavior on a physically thermal engine. In this way, the generated signals (ignition or injection pulses) can be used with additionally drivers to control an engine on the test bench.

Crank Cam Signal Generator Using NXP Model Based Design Toolbox

“…VRS type crank and hall-effect type cam speed sensors were simulated in a study where Simulink models compiled and downloaded on a target PC running on xPC Real-Time Kernel [3]. NI-9068 CompactRIO Controller, Arduino and TMS320C31 were programmed to simulate cam and crank signals [4,9,11]. Some NXP microcontrollers with eTPU functionality are able to simulate cam and crank signals [10].…”