A control device of an internal combustion engine includes: a parameter value acquiring part acquiring values of input parameters; a computing part utilizing a model using a neural network to calculate a value of an output parameter, and a control part controlling operation of the engine. The model outputs the value of the output parameter from an output layer node if the values of the input parameters are input to the input layer nodes. When an abnormality occurs at values of part of the input parameters among the input parameters, the computing part uses the corrected model to calculate the value of the output parameter, the corrected model being provided by correcting the model so that a value changing in accordance with a value of an abnormal input parameter is not input from a input layer node corresponding to the abnormal input parameter to a hidden layer node.

A control device of an internal combustion engine includes: a parameter value acquiring part acquiring values of input parameters; a computing part utilizing a model using a neural network to calculate a value of an output parameter, and a control part controlling operation of the engine. The model outputs the value of the output parameter from an output layer node if the values of the input parameters are input to the input layer nodes. When an abnormality occurs at values of part of the input parameters among the input parameters, the computing part uses the corrected model to calculate the value of the output parameter, the corrected model being provided by correcting the model so that a value changing in accordance with a value of an abnormal input parameter is not input from a input layer node corresponding to the abnormal input parameter to a hidden layer node.

An engine system is disclosed. The engine system may have an engine. The engine system may also have a sensor configured to generate a sensor signal indicative of an amount of power generated by the engine and a speed sensor configured to generate a speed signal indicative of a speed of the engine. The engine system may also have a controller configured to receive the sensor signal and the speed signal. The controller may also be configured to generate an operating histogram based on the sensor signal and the speed signal. Further the controller may be configured to receive modal points for the engine, the modal points having associated emissions limits. The controller may also be configured to generate a calibration parameter set for the operating histogram based on the weights. In addition, the controller may be configured to apply the calibration parameter set to the engine.