CRANK ANGLE DETECTION DEVICE FOR INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To provide a crank angle detection device for an internal combustion engine capable of detecting the rotation angle of the crankshaft of the engine more accurately. SOLUTION: A crank angle calculating part 38 calculates the estimated value of a crank angle which is the estimated value of the rotation angle of the crankshaft 24 based on a motor angle signal outputted by a motor angle sensor 34 and the rotation ratio set value of the engine 10 which is the internal combustion engine and a starter generator 22 which is a motor. The rotation ratio correction part 40 compares an actual crank angle signal outputted by a crank angle sensor 30 with the estimated value to obtain an error in the value, thereby correcting the set value. COPYRIGHT: (C)2004,JPO