Abstract: A method for the maintenance of an electric bike includes (i) activating a maintenance mode of a drive unit of the electric bike in response to an activation signal, wherein the electric bike, during the maintenance mode, is in a stationary state relative to surroundings, and (ii) operating the drive unit in the maintenance mode in response to a one-time user input by way of the input unit.

Abstract: A method for controlling an electric drive motor of an electrically drivable bicycle includes determining a cadence of a rider of the bicycle, and operating the electric drive motor under specification of (i) a first predefined target speed for the electric drive motor, which is lower than the cadence of the rider, and (ii) a first predefined torque for the electric drive motor, when the determined cadence of the rider exceeds a predefined cadence threshold value. The method further includes operating the electric drive motor under specification of (i) a second predefined target speed for the electric drive motor, which is higher than the first target speed, and (ii) a second predefined torque for the drive motor, when a rider torque exerted by the rider on a drive train of the bicycle exceeds a first predefined rider torque threshold value.

Abstract: A method for controlling an electric drive motor of an electrically drivable bicycle includes determining a cadence of a rider of the bicycle, and operating the electric drive motor under specification of (i) a first predefined target speed for the electric drive motor, which is lower than the cadence of the rider, and (ii) a first predefined torque for the electric drive motor, when the determined cadence of the rider exceeds a predefined cadence threshold value. The method further includes operating the electric drive motor under specification of (i) a second predefined target speed for the electric drive motor, which is higher than the first target speed, and (ii) a second predefined torque for the drive motor, when a rider torque exerted by the rider on a drive train of the bicycle exceeds a first predefined rider torque threshold value.

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: An example a circuit for controlling a power converter comprises a first power domain circuit including a first control circuit and a first driver circuit, wherein the first control circuit controls the first driver circuit to drive a first semiconductor device, wherein a second power domain circuit includes a second control circuit and a second driver circuit. The first control circuit is configured to receive a control signal for controlling the second driver circuit to drive a second semiconductor device; and identify, based on the control signal, a future electrical characteristic of a second power domain output of the power converter. Additionally, the first control circuit is configured to determine, based on the future electrical characteristic of the second power domain output of the power converter, whether to adjust one or more control parameters for controlling the first driver circuit to drive the first semiconductor device.

Abstract: A method for controlling an electric motor of an electric bicycle for driving the electric bicycle. The method includes: detecting a longitudinal acceleration of the electric bicycle in the direction of the longitudinal axis of the electric bicycle; and generating a motor torque with the aid of the electric motor as a function of the detected longitudinal acceleration, the motor torque being adapted until a predefined setpoint acceleration is reached or exceeded or undershot.

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: An example a circuit for controlling a power converter comprises a first power domain circuit including a first control circuit and a first driver circuit, wherein the first control circuit controls the first driver circuit to drive a first semiconductor device, wherein a second power domain circuit includes a second control circuit and a second driver circuit. The first control circuit is configured to receive a control signal for controlling the second driver circuit to drive a second semiconductor device; and identify, based on the control signal, a future electrical characteristic of a second power domain output of the power converter. Additionally, the first control circuit is configured to determine, based on the future electrical characteristic of the second power domain output of the power converter, whether to adjust one or more control parameters for controlling the first driver circuit to drive the first semiconductor device.

Abstract: A method and a device for controlling an additional electric or motor drive of a vehicle that can be driven at least partially by the rider using a pedal drive. To derive the control of the drive, at least one first rotational movement variable is detected that represents the rotational movement of the pedals or the pedaling movement of the crank performed by the rider. The first rotational movement variable can be detected by one or more sensors. The drive is controlled or regulated dependent on a second rotational movement variable that is derived from the first rotational movement variable. At least one time constant that influences the follow-up time of the actuated or regulated drive is taken into consideration in addition to the first rotational movement that represents the pedaling movement of the rider. The time constant used may be varied to calculate the second rotational movement variable.

Abstract: A driver circuit is configured to control a power transistor. The driver circuit comprises a signal generator configured to generate a control signal for the power transistor based on a supply signal and an input signal from a control unit. In addition, the driver circuit includes a ripple detector configured to receive the supply signal and determine whether the supply signal includes a ripple error. In some examples, the ripple detector may be configured to send a warning signal to the control unit in response to detecting the ripple error.

Abstract: A driver circuit is configured to deliver drive signals from an output pin to a power switch to control ON/OFF switching of the power switch. A first detection pin of the driver circuit is configured to receive a first signal associated with the power switch, wherein the first signal indicates a voltage drop over the power switch and a voltage drop over one or more other circuit elements. A second detection pin is configured to receive a second signal, wherein the second signal indicates a voltage drop over one or more matched circuit elements, wherein the one or more matched circuit elements associated with the second signal are substantially identical to the one or more other circuit elements associated with the first signal. The driver circuit is configured to determine the voltage drop over the power switch based on a difference between the first signal and the second signal.

Abstract: A driver circuit is configured to deliver drive signals from an output pin to a power switch to control ON/OFF switching of the power switch. A first detection pin of the driver circuit is configured to receive a first signal associated with the power switch, wherein the first signal indicates a voltage drop over the power switch and a voltage drop over one or more other circuit elements. A second detection pin is configured to receive a second signal, wherein the second signal indicates a voltage drop over one or more matched circuit elements, wherein the one or more matched circuit elements associated with the second signal are substantially identical to the one or more other circuit elements associated with the first signal. The driver circuit is configured to determine the voltage drop over the power switch based on a difference between the first signal and the second signal.

Abstract: A driver circuit is configured to control a power transistor. The driver circuit comprises a signal generator configured to generate a control signal for the power transistor based on a supply signal and an input signal from a control unit. In addition, the driver circuit includes a ripple detector configured to receive the supply signal and determine whether the supply signal includes a ripple error. In some examples, the ripple detector may be configured to send a warning signal to the control unit in response to detecting the ripple error.

Abstract: A method for controlling an electric motor of an electric bicycle for driving the electric bicycle. The method includes: detecting a longitudinal acceleration of the electric bicycle in the direction of the longitudinal axis of the electric bicycle; and generating a motor torque with the aid of the electric motor as a function of the detected longitudinal acceleration, the motor torque being adapted until a predefined setpoint acceleration is reached or exceeded or undershot.

Abstract: In a method for controlling the stopping behavior of an internal combustion engine, after a stop request, an air metering device initially reduces the volume of air supplied to the internal combustion engine during the stop and subsequently increases this volume of air again at an opening crankshaft angle (KWopen), the opening crankshaft angle (KWopen) being oriented to an undercut crankshaft angle (KWlow), at which a speed (n) of the internal combustion engine when stopping drops below a predefinable speed threshold value (ns). The time characteristic of the speed (n) of the internal combustion engine after the stop request is influenced in such a way that the internal combustion engine comes to a halt in a predefinable target crankshaft angle range.

Abstract: In a method for operating an internal combustion engine during a catalytic converter heating phase, fuel in at least two portions is injected directly into at least one combustion chamber, a first portion of the fuel being injected during an intake stroke and an injection of a second portion of the fuel taking place directly before an ignition. The second portion is continuously reduced until a freely selectable boundary value of a torque fluctuation has been reached.