Method for changing a transmission ratio of a gearing of a bicycle, computer program, controller, drive unit, and bicycle

US12344349B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Christian Reisige · Rötteln, DE
• Marcus Boege · Dußlingen, DE
• Thomas Mattes · Germering, DE
• Merlin Martin Manewald · Reutlingen, DE
• Daniel Baumgaertner · Neustetten, DE

Key dates

• Filing date: Apr 8, 2022
• Grant date: Jul 1, 2025
• Expiry date: Apr 8, 2042

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B62M2025/006
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method for changing a transmission ratio of an electrically controllable gearing of a bicycle, in particular of an electric bicycle, includes (i) measuring a pedaling frequency of the bicycle rider on the pedal shaft, (ii) measuring a pedaling force of the bicycle rider, and (iii) determining a gear change operating state on the basis of the measured pedaling frequency and on the basis of the measured pedaling force if the measured pedaling frequency is less than or equal to a lower frequency threshold value or is greater than or equal to an upper frequency threshold value, and/or the measured pedaling force is less than or equal to a lower force threshold value or is greater than or equal to an upper force threshold value. After determining the gear change operating state, a control signal is generated for the gearing according to the determined gear change operating state.