Model Research for Closed-loop Control of Diesel Engine Online Combustion
With the diesel engine ECU signal and the output data of diesel engine, local linear model tree (LOLIMOT) is used on Scilab to analyze the air intake system physical model and the rule of combustion heat release. With the speed, torque, fuel consumption, intake flow rate, intake pressure, exhaust temperature and exhaust pressure as input layer, maximum cylinder combustion pressure, maximum cylinder combustion temperature, the combustion start point and end point of combustion as output parameters, an online combustion control model for a high pressure common rail inter-cooled diesel engine is established. Results show that when rotational speed, torque, fuel consumption are chosen as the input parameters, the combustion test output results are best consistent with the experimental value, correlation coefficient R is more than 0.95, and the average error is less than 10%.
NETL
NSTL
万方数据
维普
