Abstract: A control device of a drive of an electric bicycle is disclosed. The control device is designed to (i) receive and/or retrieve a rider's input torque applied by a rider of the electric bicycle, (ii) determine an output torque based on the rider's input torque in a first value range of the rider's input torque according to a first rule, in a second value range of the rider's input torque according to a second rule and in a third value range of the rider's input torque according to a third rule, (iii) determine a supporting torque based on the output torque, and (iv) control the drive in accordance with the supporting torque. The second value range directly adjoins the first value range and the third value range. The first rule and the second rule and the third rule are different from one another. And the second rule is a continuous function with the rider's input torque as input parameter.

Abstract: A method for controlling an electric bicycle that can be operated with motor force and/or with pedal force is disclosed. The method includes (i) providing a trigger signal for enabling the activation of a walk mode to a control unit of the electric bicycle, (ii) providing a measurement signal of a sensor device regarding a property of the electric bicycle and/or regarding a component comprised by the electric bicycle to the control unit, (iii) detecting plausibility of the trigger signal on the basis of the provided measurement signal, and (iv) controlling the electric bicycle by enabling the activation of the walk mode in accordance with the detection of the plausibility of the trigger signal. Also disclosed is an electric bicycle that can be operated with motor force and/or with pedal force.

Abstract: A method for operating a drive unit of an electric bicycle is disclosed. The method includes determining a temporary actual torque curve of a driver torque generated by a muscle force of a driver of the electric bicycle. The method further includes estimating a future torque curve by extrapolating the determined actual torque curve. In addition, the method includes determining whether the estimated future torque curve falls below a predetermined first torque threshold within a predetermined first time frame. The method also includes controlled reduction of a motor torque generated by way of the drive unit when the estimated future torque curve within the first time frame falls below the first torque threshold.

Abstract: A method for controlling motor assistance provided by a motor of an electric bike is disclosed. The method includes determining a variable rate of change of a governing factor, which defines the extent to which a governing factor changes over a defined time interval The rate of change is selected such that the governing factor is decremented when a current speed is greater than a target speed, and the governing factor is incremented when the current speed is less than the target speed. The method further includes adjusting an existing governing factor based on the rate of change of the governing factor determined. The method also includes applying the governing factor calculated to a motor assistance determined for actuating the motor. A greater governing factor results in greater motor assistance than a comparatively lesser governing factor.

Abstract: A device for controlling a motor of an electric bicycle. The device includes a control electronics system that is set up to control a torque of the motor in a normal operating mode based on an acquired driver torque; to detect during normal operation whether, at the current motor torque, no rotation of the motor is taking place even though a driver torque is being exerted, and to control the motor to continue to provide the motor torque in a blocking operating mode if it has been detected that at the present motor torque no rotation of the motor is taking place even though a driver torque is being exerted.

Abstract: A method for ascertaining movement variables of a two-wheeled vehicle. The two-wheeled vehicle includes a sensor system including rotational rate, acceleration, and wheel rotational speed sensors. The wheel rotational speed sensor detects at least one measurement pulse per rotation of a wheel of the two-wheeled vehicle.

Abstract: An electrically propelled two-wheeled vehicle and a method for adjusting a drive torque of an electrically propelled two-wheeled vehicle. The electrically propelled two-wheeled vehicle includes: a sensor, based on which a pitch rate of the electrically propelled two-wheeled vehicle is ascertainable; a device for influencing a drive torque of the electrically propelled two-wheeled vehicle; and an evaluation unit configured to compare a pitch rate, which is ascertained on the basis of the sensor and represents a pitch rate of the electrically propelled two-wheeled vehicle relative to the surroundings of the two-wheeled vehicle, to a predefined, static pitch rate threshold value, and configured to reduce a drive torque acting upon a drive train of the electrically propelled two-wheeled vehicle using a predefined amplification factor, if a pitch rate generated by an upward movement of a front wheel of the electrically propelled two-wheeled vehicle exceeds the static pitch rate threshold value.

Abstract: A method for adjusting a motor torque of a motor of an electric bicycle. The method includes a detection of a speed signal, which describes a speed of the bicycle, a selection of a filter parameter for a filter unit based on a dynamics of the speed signal, a filtering of the speed signal by the filter unit by applying the selected filter parameter, and an ascertainment of a motor torque based on the filtered speed signal. An associated device is also described.

Abstract: A method for ascertaining a state of operating dynamics of a bicycle. The method includes: providing signals regarding an acceleration in at least one spatial direction and regarding a rate of rotation about at least one spatial direction, with the aid of an inertial measuring device; providing speed signals of an incremental encoder; and ascertaining the state of operating dynamics on the basis of an estimation method, in light of the provided signals; the current riding state being ascertained, and in the case of a dead stop of the bicycle as a current, ascertained riding state, substitute speed signals being provided in place of the speed signals of the incremental encoder, in order to estimate the state of operating dynamics for the estimation method.

Abstract: A tubing counter for counting coiled tubing inserted into a well includes an outer housing having a through passage for receiving the coiled tubing therethrough. In some embodiments, pressure rated connectors at both of the ends of the outer housing sealably connect the outer housing in series between the coiled tubing injector head and the outer casing of the well. A plurality of counting wheels are rotatably supported within the outer housing for rolling engagement along coiled tubing inserted through the outer housing while a counting mechanism records a number of rotations of each counting wheel independently of the other wheels to minimize counting errors. Locating the counter below the injector head and below the tubing stripper ensures that the tubing is cleaner and less likely to slip in contact with the counting wheels while also accounting for stretching of the tubing for more accurate measurement.