Siemens Aktiengesellschaft

Rolls-royce Deutschland Ltd & Co. Kg

Lucas Automotive Gmbh

Continental Automotive Gmbh

Dominik Bergmann

Georg Bachmaier

Christian Bachmann

Matthias Gerlich

Guillaume Pais

Marco Cyriacks

Christian Tump

Bernhard Fischer

Thomas Schmid

Andreas Kugi

Stefan Grieser-Schmitz

Ludger Fiege

Reinhard Freitag

Stefan Lehmann

Andreas Gödecke

Wolfgang Zoels

Wolfgang Kemmetmüller

Iason Vittorias

Gunter Freitag

Andreas Goedecke

Mirjam Mantel

Johann Görzen

Alexandru Popescu

Eugen Lanze

Tobias Glück

Frank Herold

Ries Robison

Holger Markmann

Lason Vittorias

Andreas GÖDECKE

The disclosure relates to a hybrid-electrical drive system for an aircraft having two subsystems that are largely independent of each other. A stator winding of a common electrical machine is assigned to each of the subsystems such that both subsystems may be supplied with electrical energy from the common electrical machine. If a defect occurs in one of the subsystems, the drive system may be configured such that electrical energy from a battery of the non-defective subsystem may be transferred into the defective subsystem by utilizing the two stator winding systems.

Aircraft drive system

The synchronous machine module includes a synchronous machine and a rotational speed controller for controlling a rotational speed of the synchronous machine, which rotational speed controller has a detector for detecting a variable which is formed by the effective power or is dependent thereon. The rotational speed controller is designed to set the rotational speed of the synchronous machine and/or the time profile thereof as a function of the detected variable and/or its time profile. The vehicle drive has such a synchronous machine module and a power generator, which in order to supply the synchronous machine module is connected thereto. The vehicle is, in particular, an aircraft and has such a vehicle drive and/or such a synchronous machine module.

Synchronous machine module, vehicle drive and vehicle

The disclosure relates to a propeller drive that is, in particular, an aircraft drive and includes a propeller machine and an electric drive connected without a converter to the propeller machine. The aircraft includes such a propeller drive.

Propeller drives and vehicles

In order to achieve a vehicle wheel () slip relative to a roadway () while braking the vehicle, said slip being as advantageous as possible, the rotational speed (w) of the wheel () can be actively reduced by an ABS by means of a braking intervention and passively allowed to accelerate again via the roadway () when the brake is released. The slip of the wheel () oscillates by an optimal slip value during the ABS regulating process. The aim of the invention is to improve an anti-lock braking system for a vehicle. In the method according to the invention, at least one wheel () of the vehicle is supplied with a braking torque (Mb) in order to temporarily reduce a travel speed (v) of the vehicle relative to a rolling surface (), said braking torque acting against a rotating direction () of the wheel (). Additionally, the wheel () is temporarily supplied with an acceleration torque (Ma) by means of an accelerating device of the vehicle during the reduction of the travel speed (v), said acceleration torque acting in the rotating direction ().

Vehicle with an anti-lock brake system and a method for braking a vehicle

A simplified magnetic reluctance coupling for coupling a first shaft to a second shaft, has a hollow cylindrical stator which has at least one magnet that is/are distributed around the circumference of the stator. The reluctance coupling also has a first rotor, which is supported in such a way that it can rotate within the stator, is connected to a first shaft in a rotationally fixed manner, and has a plurality of ferromagnetic first portions distributed around the circumference thereof and spatially separated from one another, as well as a second rotor, which is supported in such a way that it can rotate within the first rotor, is connected to the second shaft in a rotationally fixed manner, and has a plurality of ferromagnetic second portions distributed around the circumference thereof.

Magnetic reluctance coupling having two rotors

A method for driving a vehicle comprising at least two motors is provided. If a plurality of motors are fed from an intermediate circuit via inverters, the current in the intermediate circuit has a plurality of harmonics (&#x2212;5th, &#x2212;3th, &#x2212;1st, +1st, +3rd, +5th). To prevent coupling capacitors of the intermediate circuit becoming over-burdened, the switching frequency of the inverters is shifted in such a manner that the harmonics no longer fall into a resonance range.

Drive method with shifting of the switching frequency and drive device

An electrical supply line for operating a first electric motor includes a first converter for supplying electric energy to the first electric motor in dependence of a first control variable, a connected network connecting the first converter to a DC voltage source, an oscillation suppression controller for generating first correction information, and a first correction module for generating the first control variable by taking into consideration an operating parameter of the first electric motor and by taking into consideration the first correction information. An electrical supply system includes two of the supply lines. A corresponding method for operating an electric drive is also described.

Supply line, supply system and method for operating an electric drive

A charging installation for inductively charging an electrical energy storage device of a vehicle, has a vehicle-side coil and a ground-side coil. At least one temperature sensor is disposed in the region of the ground-side coil and at least one heat source is disposed in the region of the vehicle-side coil.

Method and apparatus for inductively charging the energy storage device of a vehicle by aligning the coils using heat sensors

Damage to an inverter due to an excessively high start-up current, when using space vector control without a voltage sensor in conjunction with small connection inductances, can be prevented with a method for controlling the inverter, and with a corresponding controller, wherein the controller is configured to transmit in a start-up phase of an inverter circuit a control signal to a control input of the inverter circuit, wherein the control signal simultaneously switches three first semiconductor switches, which are connected to a first DC voltage terminal of the inverter circuit, temporarily into a conducting state.

Method for limiting startup currents in an inverter circuit

In order to store excess kinetic energy, an energy storage device and an operating method are described, in which the kinetic energy can be partially converted into electrical energy by a first electric machine using at least two electric machines arranged on a shaft and can be partially converted into additional kinetic energy, such as rotational energy, by a second electric machine. The method for energy storage of excess kinetic energy provides for converting kinetic energy partially into electric energy and partially into additional kinetic energy, such as rotational energy.

Energy storage device and operating method

For an object on a bearing mounting having a magnetic bearing providing a magnetic field generally produced by an electromagnet, the bearing is regulated based on a position of the object relative to the bearing. The position of the object is determined by reference to an estimate of the inductance obtained using a least squares method, in which the electrical resistance of the bearing is taken into account. The resistance is subject to variations, for example due to temperature fluctuations; however, the electrical resistance can be estimated by regulating the inductance error, &#x394;{circumflex over (L)}={circumflex over (L)}&#x2212;{circumflex over (L)}down to zero, where the resistance adjustment facility may be a low-pass filter and an integration controller.

Method for adjusting resistance of electromagnet in magnetic bearing and for sensorless determination of position of object mounted in magnetic bearing, taking into account adjusted value of resistance

In a method for reading and/or storing injector-specific data for controlling an injection system of an internal combustion engine, an injector is charged by a control unit according to a predeterminable voltage curve and, depending on the case, is discharged directly by the control unit or by a power element located on a data storage medium and the voltage is measured by the control unit and by the data storage medium. Dependent upon a predeterminable voltage curve, a predeterminable amount of data is stored or read on a memory unit of the data storage medium.

Growing community of inventors

Sachsenkam, Germany

Dominik Bergmann