Patent ID: 8499744

Claim:
An accelerator opening degree estimation apparatus comprising: a vehicle velocity detection device that detects a velocity of a vehicle; a number-of-prime-mover-rotation detection device that detects a number of rotations of a prime mover of the vehicle; a storage section storing therein relationship between velocities of a vehicle and accelerator opening degrees and number of prime mover rotations during travel of the vehicle under a predetermined condition; an acquisition section that acquires, from said storage section, the accelerator opening degree and number of prime mover rotations corresponding to the velocity detected by said vehicle velocity detection device; and an accelerator opening degree compensation section that compares the number of rotations acquired by said acquisition section and an actual number of rotations detected by said number-of-prime-mover-rotation detection device and compensates the accelerator opening degree, acquired by said acquisition section, on the basis of a result of the comparison between the number of rotations acquired by said acquisition section and the actual number of rotations, an accelerator opening degree being estimated in accordance with the accelerator opening degree compensated by said accelerator opening degree compensation section.