Control apparatus for internal combustion engine

摘要

A control apparatus of the invention is applied to a three-cylinder internal combustion engine that is mounted in a vehicle and in which a first MG is connected to a crankshaft in a manner capable of transmitting power. When stopping the internal combustion engine, a vehicle control unit controls output torque of the first MG such that the internal combustion engine is stopped in a state where a preset particular cylinder is in a compression stroke. The particular cylinder is a cylinder in which a mutually weakening relationship is established between a vibration component that is generated due to precession in the internal combustion engine when the internal combustion engine is started from the state where this particular cylinder is in the compression stroke and a vibration component that is predicted to be generated in the vehicle when it is assumed that torque to be applied to the crankshaft at a startup of the internal combustion engine is applied to the crankshaft in a state where a piston and a connecting rod of each cylinder are detached.

主权项

1. A control apparatus applied to a three-cylinder internal combustion engine that is mounted in a vehicle and in which an electric motor is connected to a crankshaft in a manner capable of transmitting power, the control apparatus comprising
control unit configured to control output torque of the electric motor at a time that the internal combustion engine is stopped such that the internal combustion engine is stopped in a state where a preset particular cylinder is in a compression stroke or an expansion stroke, wherein the particular cylinder is a cylinder in which a mutually weakening relationship is established between a vibration component generated due to precession of the internal combustion engine in the case where the internal combustion engine is started from the state where said particular cylinder is in the compression stroke or the expansion stroke and a vibration component predicted to be generated in the vehicle in the case where it is assumed that torque to be applied to the crankshaft at a startup of the internal combustion engine is applied to the crankshaft in a state where a piston and a connecting rod of each cylinder are detached.