US 11,787,500 B2
Human-powered vehicle control device
Satoshi Shahana, Osaka (JP); and Hitoshi Takayama, Osaka (JP)
Assigned to Shimano Inc., Osaka (JP)
Filed by Shimano Inc., Osaka (JP)
Filed on Jul. 20, 2020, as Appl. No. 16/933,216.
Claims priority of application No. 2019-140821 (JP), filed on Jul. 31, 2019.
Prior Publication US 2021/0031872 A1, Feb. 4, 2021
Int. Cl. B62M 6/50 (2010.01); B62M 1/36 (2013.01); B62M 9/04 (2006.01); B62M 6/45 (2010.01)
CPC B62M 6/50 (2013.01) [B62M 1/36 (2013.01); B62M 6/45 (2013.01); B62M 9/04 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A control device for a human-powered vehicle including a motor configured to apply a propulsion force to the human-powered vehicle, a crank axle, a driving wheel, and a transmission configured to be controlled to automatically change a transmission ratio of a rotational speed of the driving wheel to a rotational speed of the crank axle, the control device comprising:
an electronic controller configured to control the motor in accordance with a human driving force input to the crank axle and further configured to control the transmission to automatically change the transmission ratio upon determining that a shifting condition is satisfied,
the electronic controller being further configured to change an assist state related to at least one of an assist ratio of an assist force generated by the motor to a predetermined human driving force and the assist force generated by the motor in accordance with the human driving force, and
the electronic controller being further configured to control the transmission to maintain the transmission ratio even when the shifting condition is satisfied upon determining that a peak value of the human driving force satisfies a predetermined condition, the peak value of the human driving force being a maximum value of the human driving force during a single rotation or a half rotation of the crank.