Robert Bosch

Robert Bosch Gmbh

Christoph Emde

Michael Schlitzkus

Andreas Schmidtlein

Patrick Schellnegger

Heiko Druckenmueller

Yakup Navruz

Holger Kurz

Alexander Springer

Rainer Baumgaertner

Thomas Zander

Gotthilf Koerner

Johannes Hesselbarth

Volker Weeber

Jochen Bodmann

Oliver Leibfried

Wolfgang Peveling

Ruediger Schoen-Hermenau

Mitja Buhmann

Achim Noller

Heiko Bock

Dirk Niemeyer

Marco Ferwagner

Wolfgang Klein

Andreas Seeger-Glueck

A method for operating an electric motor, in particular of a piston pump. The electric motor has a rotor shaft and is actuated with a target rotational speed and a target rotational direction for the rotor shaft as a function of a power demand, wherein an actual rotational speed of the rotor shaft is monitored. In the method, the target rotational direction is changed for a specified period of time if the actual rotational speed is equal to zero and the target rotational speed is unequal to zero, and the electric motor is then actuated again at the target rotational speed and in the target rotational direction.

Method for operating an electric motor, controller, piston pump

A method is provided for controlling a driving dynamics control unit for influencing the braking of wheels of a motor vehicle. The driving dynamics control device having a pump, which includes at least two pump elements for the supply of brake fluid, and an electric motor, which includes a rotor and a stator for driving the pump elements. The method includes the following steps: detecting the position of the rotor relative to the stator, and adjusting an ideal position of the rotor relative to the stator, the sum of the torques for moving the pump elements lying below a predefined torque limit value, in particular being minimal, in the ideal position.

Method for controlling a driving dynamics control device, and driving dynamics control device

A control unit for operating an electrical machine which includes a rotor, a stator, and power electronics. The power electronics have a plurality of switching elements, by which the phases of the stator winding are connected/connectible electrically to an electrical energy store. The control unit includes first and second processing units and is configured to determine control signals for controlling the switching elements, using the processing units. The first processing unit is configured to determine a magnitude of a setpoint voltage vector for the phases based on a setpoint rotational speed of the rotor and an actual rotational speed of the rotor. The second processing unit is connected to the first processing unit so as to be able to communicate with it, and being configured to determine the control signals as a function of the magnitude of the setpoint voltage vector and an actual angle of rotation of the rotor.

Control unit for operating an electrical machine, electrical machine, and method

In a hydraulic brake system, which includes: a hydraulic pump which is driven by an electric motor and has the purpose of generating a fluid volume flow for the hydraulic brake system; a hydraulic connection for conducting the fluid volume flow between the hydraulic pump and a wheel brake; a reservoir for storing a fluid volume; wherein the reservoir is connected to the hydraulic connection by means of a switching valve, a method includes actuating the switching valve in such a way that by this means a fluid pulsation in the hydraulic connection is counteracted. Furthermore, the method may be implemented with a control unit and a hydraulic brake system.

Method for controlling a hydraulic brake system

In a method for controlling a hydraulic braking system, wherein the braking system includes a hydraulic pump that is driven by an electric motor so as to generate a volume of fluid flow for the hydraulic braking system. the electric motor is controlled in such a manner that fluid pulsation in the hydraulic braking system is counteracted by means of modulating a rotational speed of the electric motor. The modulation is generated by means of the control procedure. Furthermore, a device is designed and configured so as to perform the method.

Method for controlling a hydraulic braking system

In a hydraulic brake system, which includes: a hydraulic pump which is driven by an electric motor and has the purpose of generating a fluid volume flow for the hydraulic brake system; and a solenoid valve for controlling the fluid volume flow from the hydraulic pump to a wheel brake, a method includes actuating the solenoid valve in such a way that by this means a fluid pulsation at the wheel brake is counteracted. Furthermore, the method may be implemented in a corresponding device.

Method and device for controlling a hydraulic brake system

A method and a device for controlling an electric motor using pulse-width modulated control signals. Control pulses having a setpoint duty factor and temporally varying pulse widths and pulse spacing are generated in the process, the temporally varying pulse widths and pulse spacing being selected as a function of a load and/or thermal loading of the electric motor and/or its control device.

Method and device for controlling an electric motor

A method for operating an electric motor connectable via a switching device to a current source and connected in parallel with a freewheeling device, the switching device having control applied to it at a specific activation ratio within each working cycle to establish a desired effective operating voltage of the electric motor, so that in at least one operating mode each working cycle is includes an activation and a freewheeling time period. The freewheeling device has a freewheeling transistor and a freewheeling diode, connected in parallel with the transistor and reverse-biased as to the current source; and control is applied to the freewheeling transistor in the freewheeling time period as follows: identifying the freewheeling voltage dropping across the electric motor; and switching the freewheeling transistor for a specific switching time period if the freewheeling voltage is different from zero, particularly less than zero. Also described is an electric motor device.

Method for operating an electric motor and corresponding electric motor device

A method of detecting data transmission errors in a CAN controller includes generating at least one check bit that is verifiable for ensuring the consistency of the transmitted data. A CAN controller that ensures continuous error monitoring during data transmission includes an interface unit for exchanging data with a CAN bus, a memory unit for storing received data and data to be transmitted, and an electronic unit for controlling data transmission between the memory unit and the interface unit. The interface unit of the CAN controller has an arrangement for generating check bits for received data and for verifying check bits for data to be transmitted.

Method of detecting data transmission errors in a CAN controller, and a CAN controller for carrying out the method

An electrical pressfit plug connector for fastening to a printed circuit board includes contacts, which on the front side and back side of the plug connector are each situated as a single or multi-row male multipoint connector, and which are configured on the front side of the plug connector as contact pins for contacting a counterplug, and are configured on the back side as pressfit pins for pressfitting into metallized bores in the printed circuit board, according to the present system, either the contact pin or the pressfit pin of at least one contact of the male multipoint connectors being situated laterally offset with respect to its associated pressfit pin and contact pin, respectively, in the longitudinal direction of the male multipoint connectors.

Electrical pressfit plug connector having a laterally bent power pin

A device and a method are provided for determining the after-run voltage of a direct current motor which is operated via cycled control. In normal operation the direct current motor is controlled via PWM control and a first specifiable pulse/no-pulse ratio. An evaluation unit is provided for determining an after-run voltage variable which is representative of the after-run voltage of the motor. Furthermore, for determining the after-run voltage variable the direct current motor is controlled via a specifiable, variable second pulse/no-pulse ratio.

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Leingarten, Germany

Christoph Emde