Robert Boschgmbh

Juergen Stegmaier

Rinaldo Greiner

Gregor Dasbach

Manfred Schmitt

Martin Cichon

Dietmar Uhlenbrock

Bruno Hezel

Achim Schmidt

Bernd Banzhaf

Daniel Baumgaertner

Markus Ledermann

Jo Pletinckx

Tim Dackermann

Wolfram Schock

Andreas Wienss

Jan Schnee

Oliver Tschismar

Merlin Martin Manewald

Georg Widmaier

Lutz Rauchfuss

Felix Dauer

Jonas Kunz

Ilona Krinn

Henrick Brandes

Guillaume Huard

Patrick Glaser

Heinrich Hasemann

A method for operating a vehicle operable by motor power and/or pedal power, in particular, an electric bicycle. The vehicle includes an electric drive, a crank mechanism, at least one torque sensor, which is configured to detect a torque applied by a rider onto the crank mechanism, in the form of a multitude of torque measuring signals, and a control unit, which is configured to generate a control signal for activating the electric drive as a function of at least one of the torque measuring signals. Upon detection of an error regarding the torque sensor, the control signal is generated in the form of a substitute control signal, based on at least one of the torque measuring signals, when this at least one torque measuring signal is recognized as plausible. A vehicle operable by motor power and/or pedal power, in particular, an electric bicycle, is also described.

Method for operating a vehicle operable by motor power and/or pedal power, and vehicle

A method for controlling a gear shifting means or mechanism of a bicycle is disclosed. A reference shifting point is ascertained such that, when a gear change occurs at the reference shifting point, a change in pedaling frequency caused by the gear change is symmetrical to a reference pedaling frequency.

Method for controlling a gear shifting means of a bicycle

A method for monitoring the travel speed of a bicycle, in particular a pedelec. The method includes: providing a power supply for a speed signal transmitter, ascertaining a first speed for the bicycle, interrupting the power supply for the speed signal transmitter for a specifiable interruption time span, while the power supply is switched off, ascertaining a second speed, ascertaining a comparison result by comparing the ascertained first and second speed, and recognizing a faulty speed signal transmitter as a function of the result of the comparison.

Method for monitoring the travel speed of a bicycle

A method for checking the plausibility of accident situations involving a two-wheeled vehicle, a device for carrying out this method, and a two-wheeled vehicle comprising a device of this kind. In the method, it is checked, i.e., reviewed, whether it is plausible to output the accident information, in order to avoid unnecessary or even incorrect calls for help.

Method and device for checking the plausibility of an accident involving a two-wheeled vehicle

A method for classifying an accident event of a two-wheeled vehicle, in particular a bicycle. The method is able to run as an algorithm on a device having an evaluation unit in order to indicate to the driver of the two-wheeled vehicle or to a third party a collision or fall of the two-wheeled vehicle with the aid of correspondingly generated and/or transmitted information. The device may be used for a two-wheeled vehicle such as a bicycle and in particular for an electric bicycle. The use is naturally also possible for a motorcycle or some other single-track vehicle.

Method and device for classifying an accident event involving a two-wheeled vehicle

A rim magnet arrangement for fixing on a stem of a valve. The rim magnet arrangement includes a magnet, and

Rim magnet arrangement for fixing a magnet on a rim by way of a stem of a valve

A method for classifying an accident event of a two-wheeled vehicle, in particular a bicycle. The method can be run in the form of an algorithm in a device comprising an analysis unit in order to indicate to the rider or a third party that the two-wheeled vehicle has been involved in a collision or has fallen over using a corresponding generated and/or transmitted item of information. The device can be used in a two-wheeled vehicle, such as a bicycle or in particular in an electric bicycle. However, it can of course also be used in a motorcycle or another single-track vehicle.

A method for ascertaining a wheel circumference of a driven wheel of a vehicle includes measuring a rotational speed of the driven wheel during a predefined time span, measuring an acceleration of the vehicle in the direction of the longitudinal axis of the vehicle during a predefined time span, determining a distance traveled by the vehicle based on the measured acceleration, and determining the wheel circumference of the driven wheel based on the measured rotational speed and the ascertained distance traveled.

Method for ascertaining a wheel circumference of a driven wheel, control method for a drive motor, control unit, and vehicle

A method for adjusting a motor torque of an electric two-wheeled vehicle, including the following steps: reading in a driver assistance profile which represents a dependency of the motor torque on a pedaling action of the driver, determining at least one predefined range in the driver assistance profile, the range having at least one nonconstant change within the driver assistance profile, in particular in the slope of the driver assistance profile, and ascertaining a future speed of the electric two-wheeled vehicle as a function of an instantaneous speed of the electric two-wheel vehicle and a pedaling action of the driver. The motor torque is changed, in particular decreased or increased, as a function of the pedaling action of the driver, deviating from the driver assistance profile, based on a check as to whether the future speed of the electric two-wheeled vehicle is within the predefined range.

Adaptive motor torque adjustment for electric two-wheeled vehicles

A method for controlling an electric drive of a vehicle is provided, e.g., an electric bicycle, which is able to be operated by muscular energy and/or motor power, the vehicle including a crank gear and the electric drive being disposed at the crank gear. The method includes: ascertaining a driving situation, for which the electric drive is to be used, and in this situation, initially running up the electric drive at a first gradient, and then at a second gradient, the first gradient being greater than the second gradient.

Method for controlling an electric drive of a vehicle which is operable by muscular energy and/or motor power, and vehicle of this kind

A vehicle operable with human muscle power and/or motor power, e.g., an electric bicycle, includes: a crank drive through which a rider torque generated by a rider is introduced; an electrical drive system that can additionally apply a driving torque; and a control unit configured to shut off the electrical drive system when the rider torque is not present. The control unit encompasses a monitoring device which ensures that when the rider torque falls below a predetermined value, the electrical drive system continues to be operated for a specified time span, the duration of the time span being variable as a function of a pedaling frequency.

Vehicle operable with muscle power and/or motor power, and method for operating the vehicle

In a Laval nozzle () having a flow channel (), which has a flow cross-section () extending in a convergent-divergent manner, according to the invention the flow channel () comprises mutually opposing first flow channel walls ('), which are formed by two nozzle bodies (&#x2032;) spaced a fixed distance apart from one another. Two mutually opposite second flow channel walls (&#x2032;), which can be moved relative toward one another or away from one another for adjusting the flow cross-section () of the flow channel (), are disposed between the nozzle bodies (&#x2032;).

Laval nozzle

A device for utilizing waste heat of an internal combustion engine. A heat exchanger of a circuit of a working medium is provided in its exhaust system. A pump is connected upstream from the heat exchanger, the circuit containing an expansion machine. A coupling heat exchanger is located in the circuit of the working medium, the working medium of the circuit and the cooling medium of the internal combustion engine flowing through the coupling heat exchanger.

Device for utilizing waste heat

A device for utilizing the waste heat of an internal combustion includes a single-stage or multi-stage supercharging device, which is designed as an exhaust-gas turbocharger in particular. The single-stage or multi-stage supercharging device is assigned an additional supercharging device including an expansion machine acted upon by an auxiliary circuit, in particular a steam circuit.

Device for supporting a supercharging device

An internal combustion engine having an exhaust gas recirculation device for recirculating exhaust gas of the internal combustion engine to a fresh-air side of the internal combustion engine. For this purpose, it is provided that the exhaust gas recirculation device has at least one compressor for compressing the exhaust gas supplied to the fresh-air side of the internal combustion engine.

Growing community of inventors

Ludwigsburg, Germany

Juergen Stegmaier