Patent ID: 9200585
Filing Date: 2015-12-01
Classification: F02D

Abstract:
1. A control apparatus for an internal combustion engine, the control apparatus comprising: a cylinder internal pressure sensor to be integrated with a fuel injection valve provided to inject fuel into a combustion chamber of the internal combustion engine, the cylinder internal pressure sensor being configured to detect cylinder internal pressure in the combustion chamber; a fuel injection parameter calculator configured to calculate an opening time and an opening start time of the fuel injection valve in accordance with an operation state of the internal combustion engine; a driving device to drive the fuel injection valve in accordance with the opening time and the opening start time that are calculated by the fuel injection parameter calculator; and a sensor output signal processing device configured to generate a cylinder internal pressure detection signal based on a cylinder internal pressure sensor output signal output from the cylinder internal pressure sensor, the sensor output signal processing device being configured to set a noise reduction period in accordance with the opening time and the opening start time of the fuel injection valve and configured to reduce, during the noise reduction period, noise that is included in the cylinder internal pressure sensor output signal and that is caused by opening of the fuel injection valve.