The problem to be overcome by the present disclosure is to detect the speed of an electric bicycle highly accurately. A bicycle control device (1) is used with a speed detection device (5) and a rotation detection device (6). The speed detection device (5) detects a rotating condition of a wheel of an electric bicycle. The rotation detection device (6) detects a rotating condition of a power train to rotate the wheel of the electric bicycle. A rotational frequency detection unit (11) calculates, based on a result of detection by the rotation detection device (6), a rotational frequency of the power train. An angle of rotation detection unit (12) calculates, based on the result of detection by the rotation detection device (6), an angle of rotation of the power train when the wheel turns to a predetermined angle of rotation. A gear position estimation unit (13) estimates, when the rotating condition of the wheel is detected by the speed detection device (5), a gear position of a transmission of the electric bicycle based on the angle of rotation. A speed calculation unit (14) calculates the speed of the electric bicycle based on the rotational frequency and the gear position.
BICYCLE CONTROL DEVICE, MOTOR UNIT, DRIVE UNIT, ELECTRIC BICYCLE, AND PROGRAM
FAHRRADSTEUERUNGSVORRICHTUNG, MOTOREINHEIT, ANTRIEBSEINHEIT, ELEKTRISCHES FAHRRAD UND PROGRAMM
DISPOSITIF DE COMMANDE DE BICYCLETTE, UNITÉ DE MOTEUR, UNITÉ D'ENTRAÎNEMENT, BICYCLETTE ÉLECTRIQUE ET PROGRAMME
2024-11-06
Patent
Electronic Resource
English
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