| 摘要 |
A control apparatus for an internal combustion engine includes a crankshaft, a camshaft for actuating an intake valve of the engine, a crank position sensor that outputs a crank signal every time the crankshaft rotates 10° of crank angle, an electric motor that is coupled to the camshaft, and an engine control computer that, based on the crank signal, controls the engine every time the crankshaft rotates 30° of crank angle. The motor includes a rotor and three rotation sensors. Each sensor outputs a signal corresponding to induced voltage generated by rotation of the rotor. The computer controls the rotating motor based on the signals from the rotation sensors. When the crank position sensor malfunctions, the computer controls the engine every time the crankshaft rotates 30° of crank angle based not on the crank signal but on a rotation pulse train generated based on the signals from the rotation sensors.
|
