Control apparatus of internal combustion engine

摘要

An object of the present invention is to obtain a control apparatus of an internal combustion engine capable of respectively accurately detecting a combustion change in a plurality of combustion modes. In the present invention, the control apparatus of the internal combustion engine operable upon switching the combustion mode sets a detection time and a detection duration to detect a sensor signal of a crank angle sensor 10 in accordance with the combustion mode, and determines whether or not there is the combustion change based on the sensor signal detected by the crank angle sensor 10 at the detection time and for the detection duration set by the control apparatus.

主权项

1. A control apparatus of an internal combustion engine operable upon switching a combustion mode, comprising:
a detection timing setting means for setting a detection time and a detection duration to detect a sensor signal of a crank angle sensor in accordance with the combustion mode; a combustion change determination means for determining whether or not there is a combustion change based on the sensor signal detected by the crank angle sensor at the detection time and for the detection duration set by the detection timing setting means; and a combustion change suppression control means for controlling to suppress the combustion change of the internal combustion engine in a case where the combustion change determination means determines that there is the combustion change, wherein
the combustion mode includes compression ignited combustion and spark ignited combustion,the detection timing setting means, in a case where the combustion mode is the compression ignited combustion, shortens the detection duration and advances the detection time in comparison to the spark ignited combustion,the combustion change suppression control means, in a case where determination of the combustion change determination means is altered from the combustion change to non-combustion change as a result of suppression control of the combustion change, maintains a combustion change suppression control state at a time point when the determination is altered, andthe combustion change suppression control means controls to suppress the combustion change of the internal combustion engine based on a rotation angle and an angular velocity of a crankshaft obtained from the sensor signal of the crank angle sensor.