The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 05, 2022
Filed:
Mar. 25, 2019
Shimano Inc., Osaka, JP;
Keiji Terashima, Osaka, JP;
Shimano Inc., Osaka, JP;
Abstract
A human-powered vehicle control device includes an electronic controller that controls a motor assisting in propulsion of a human-powered vehicle including a crank. The controller changes an assist force ratio generated by the motor to human drive force input to the crank accordingly to the human drive force and a crank rotational speed. The controller increases the ratio as the human drive force increases while the crank rotational speed is constant and the human drive force is in a first range. The controller controls the motor so that the ratio is larger for a case where the human drive force is a first predetermined value in a first range and the crank rotational speed is in a second range than for a case where the human drive force is the first predetermined value and the crank rotational speed is in a third range higher than the second range.