公开(公告)号：US20180362115A1

公开(公告)日：2018-12-20

申请号：US15991881

申请日：2018-05-29

Applicant: Shimano Inc.

Inventor： Yasuhiro TSUCHIZAWA ,  Hiroshi MATSUDA ,  Takuya KATSUKI

IPC: B62M6/50 ,  B62M6/90 ,  B62M6/55

Abstract: A bicycle control device that easily maintains the ratio of the assist force generated by a motor to the human drive force input to a bicycle at a predetermined ratio includes an electronic controller that controls a transmission, which is configured to change the transmission ratio of the bicycle, and the motor, which assists propulsion of the bicycle. The electronic controller is configured to control the motor so that the ratio of the assist force generated by the motor to the human drive force inputted to the bicycle becomes equal to the predetermined ratio. The electronic controller is configured to control the transmission in correspondence with at least one of the output torque of the motor and the human drive force to maintain the predetermined ratio.

公开(公告)号：US20180215432A1

公开(公告)日：2018-08-02

申请号：US15874670

申请日：2018-01-18

Applicant: Shimano Inc.

Inventor： Yasuhiro TSUCHIZAWA ,  Hiroshi MATSUDA ,  Takuya KATSUKI

IPC: B62J99/00 ,  B62M6/45 ,  B62M15/00 ,  B62M25/08

CPC classification number: B62J99/00 ,  B62J2099/0013 ,  B62M6/45 ,  B62M6/50 ,  B62M9/12 ,  B62M15/00 ,  B62M25/08

Abstract: A bicycle control device includes an electronic controller that controls a motor, which assists propulsion of a bicycle. The electronic controller is configured to decrease an output of the motor to less than or equal to a limit value upon determining a shifting device is performing a shifting action to change a transmission ratio of the bicycle. The electronic controller is further configured to change at least one of the limit value of the output of the motor and a time in which the output of the motor is decreased upon determining the shifting device is performing the shifting action in accordance with at least one of an actuation state of the shifting device in the shifting action and a parameter of the bicycle that is changed by the shifting action performed by the shifting device.