Method for operating a pushing aid for an electric bicycle
AssigneeRobert Bosch GmbH
InventorsJuergen Stegmaier, Thomas Mattes
Life of this patent
Estimating the term…
Abstract
A method for operating a pushing aid of an electric bicycle is disclosed. The electric bicycle includes a drive unit for generating a propulsion and a gearshift between the drive unit and a drive wheel of the electric bicycle. The gearshift is designed to be electronically operable. The method includes the following steps of which are carried out in a pushing aid mode of the electric bicycle (i) determining a current transmission ratio of the gearshift, (ii) operating the drive unit to generate a pushing aid motor torque, and (iii) controlled adjustment of the transmission ratio of the gearshift as a function of the determined current transmission ratio.
Claims16
A method for operating a pushing aid of an electric bicycle, wherein the electric bicycle comprises a drive unit configured to generate propulsion and a gearshift between the drive unit and a drive wheel of the electric bicycle, wherein the gearshift is designed to be electronically operable, and wherein the method comprises the following steps which are carried out in a pushing aid mode of the electric bicycle:
- determining a current transmission ratio of the gearshift;
- operating the drive unit so as to generate a pushing aid motor torque;
- and
- controllably adjusting the transmission ratio of the gearshift as a function of the determined current transmission ratio,
- wherein:
- at least two different target transmission ratios are defined,
- in each case a transmission ratio difference between the determined current transmission ratio and each of the target transmission ratios is determined, and
- the transmission ratio of the gearshift is adjusted in a controlled manner in order to set the nearest target transmission ratio.
A method for operating a pushing aid of an electric bicycle, wherein the electric bicycle comprises a drive unit configured to generate propulsion and a gearshift between the drive unit and a drive wheel of the electric bicycle, wherein the gearshift is designed to be electronically operable, and wherein the method comprises the following steps which are carried out in a pushing aid mode of the electric bicycle:
- determining a current transmission ratio of the gearshift;
- operating the drive unit so as to generate a pushing aid motor torque;
- and
- controllably adjusting the transmission ratio of the gearshift as a function of the determined current transmission ratio,
- wherein
- a current incline is also determined in the pushing aid mode, and
- the controlled adjustment of the transmission ratio of the gearshift additionally takes place as a function of the determined current incline.
A method for operating a pushing aid of an electric bicycle, wherein the electric bicycle comprises a drive unit configured to generate propulsion and a gearshift between the drive unit and a drive wheel of the electric bicycle, wherein the gearshift is designed to be electronically operable, and wherein the method comprises the following steps which are carried out in a pushing aid mode of the electric bicycle:
- determining a current transmission ratio of the gearshift;
- operating the drive unit so as to generate a pushing aid motor torque;
- and
- controllably adjusting the transmission ratio of the gearshift as a function of the determined current transmission ratio,
- wherein
- a current incline is also determined in the pushing aid mode, and
- the controlled adjustment of the transmission ratio of the gearshift additionally takes place as a function of the determined current incline, and additionally based on a weight of the electric bicycle.
Dependencies are inferred from the claim text.