Robert Boschgmbh

Bernd Eckert

Stefan Butzmann

Klaus Ries-Mueller

Klaus Voigtlaender

Ian C Faye

Peter Taufer

Gert Jakob

Fabian Utermoehlen

Jochen Fassnacht

Steffen Eppler

Gerd Bohmwetsch

Andreas Mittag

Edwin Eberlein

Tino Merkel

Bernd Dittmer

Roland Norden

Marcel Maur

Jochen Seibold

Bernhard Mader

Jie Ge

Michael Bildstein

Achim Herzog

Stephan Hanel

Christoph Van Booven

Peter Eitner

Reinhold Danner

Gisbert Krauter

Matthias Letzgus

Markus-Alexander Schweiker

Silke Spitzer

Andreas Hoeger

A charging device, in particular for machine tools, including a charging unit which in at least one operating state is provided for contactlessly charging at least one rechargeable battery unit, and which includes at least a first charging operating mode for transmitting electrical energy. The charging unit includes at least a second charging operating mode for transmitting electrical energy, the second charging operating mode differing from the first charging operating mode in at least one charging parameter.

Charging device and method for operating a charging device

An encoder wheel assembly comprising: a first encoder wheel rotationally fixed to a rotor and having a number n of teeth arranged along the circumference of the encoder wheel; a second encoder wheel rotationally fixed to the first encoder wheel, and having the same number n of teeth as the first encoder wheel along the circumference of the encoder wheel, wherein the teeth of the second encoder wheel have an asymmetrical angular offset relative to the teeth of the first encoder wheel; a first sensor designed to scan the first encoder wheel; a second sensor designed to scan the second encoder wheel; and a controller connected to the first sensor and the second sensor and designed to ascertain the absolute angular position and the rotational direction based on a binary signal derived from a first signal of the first sensor and a second signal of the second sensor.

Encoder wheel assembly and method for ascertaining an absolute angular position and a rotational direction

The present invention relates to an axle drive for a vehicle, said axle drive comprising at least one electrical machine, at least one power electronics system and at least one transmission, which are arranged in a housing, a first housing partition being situated between the at least one electrical machine and the at least one power electronics system. A further second housing partition is situated between the at least one electrical machine and the at least one transmission. The first housing partition consists of a first material, and/or the second housing partition consists of a second material.

Electrical axle drive for a vehicle

A device for cooling a plurality of electrical components, each having a component cooling surface to be cooled, includes a first heat sink, a second heat sink, and a plurality of fasteners. The first heat sink has a first heat-sink cooling surface, and the second heat sink has a second heat-sink cooling surface. The first and second heat-sink cooling surfaces are positioned in a planar arrangement such that the first and second heat-sink cooling surfaces face each other. The first heat-sink cooling surface is configured to receive a first sub-set of the component cooling surfaces of the plurality of electrical components, and the second heat-sink cooling surface is configured to receive a second sub-set of the component cooling surfaces. The fasteners are configured to fasten the first and second heat-sink cooling surfaces to the corresponding component cooling surfaces of the plurality of electrical components to be applied.

Device for cooling electrical components

The invention relates to a method for detecting a direct-current fault current in an electrical alternating-current circuit, wherein a rectifier unit () is connected to an alternating-current network () by means of a primary side () and provides a direct current on a secondary side () and wherein the alternating-current network () is protected by means of a fault-current circuit breaker (), which interrupts the circuit if an alternating-current fault current greater than a specified alternating-current tripping threshold occurs. A direct-current fault current on the primary side () is measured and is compared with a specified direct-current tripping threshold. An alternating-current fault current is produced if the direct-current fault current lies above the tripping threshold. The invention further relates to a device () for detecting a direct-current fault current and to a charging apparatus () comprising such a device ().

Method and device for detecting a direct-current fault current

The invention relates to a method () and a control device (I) for controlling at least two power semiconductor switches (LHS. . . LHSn) connected in parallel for switching a total current (I_ges). The at least two power semiconductor switches (LHS. . . LHSn) connected in parallel each have a gate terminal for controlling the respective power semiconductor switch (LHS. . . LHS). An input terminal (EA) for feeding the total current (I_ges), an output terminal (AA) for discharging the total current (I_ges), and a joint control terminal (S) for receiving a joint control signal (SI) that has the state 'disconnect' or 'connect' are provided. The at least two power semiconductor switches (LHS. . . LHSn) connected in parallel are connected to the input terminal (EA) at an input end and to the output terminal (AA) at the output end.

Method and device for controlling power semiconductor switches connected in parallel

The invention relates to a system for charging an electric vehicle, comprising a measuring device which is designed to measure a charge voltage on a charging interface of the electric vehicle, an evaluation device which is designed to determine first characteristic variables from the measured charge voltage, a communication device which is designed to transfer the first characteristic variables to other electric vehicles and/or to capture, from the other electric vehicles, second characteristic variables relating to charge voltages of the other electric vehicles, a control device which is designed to control, in accordance with the first and/or second characteristic variables, the charge power withdrawn from an energy supply network by the electric vehicle by means of the charging interface. The invention also relates to an electric vehicle and a method.

System for charging an electric vehicle, electric vehicle and method

The disclosure relates to a method and a control device for controlling at power semiconductor switches connected in parallel for switching a total current. The semiconductor switches each have a gate terminal. An input terminal for feeding the total current, an output terminal for discharging the total current, and a joint control terminal for receiving a joint control signal that has the state 'disconnect' or 'connect' are provided. The power semiconductor switches are each connected between to the input terminal and the output terminal. At least one ascertainment unit is designed to receive the joint control signal, ascertain individual control signals in accordance with the joint control signal to control the individual power semiconductor switches, and output the individual control signals to the gate terminals of the power semiconductor switches. The individual control signals each have the state &#x2018;disconnect&#x2019; or &#x2018;connect&#x2019; and differ at least temporarily.

Method and device for electrical current delivery using parallel semiconductor switches

The invention provides a coil apparatus () for inductive power transmission, comprising an electromagnetic coil () for emitting and/or picking up an electromagnetic field () on a transmission side () of the coil apparatus (), and comprising a housing wall (), which covers the coil () on the transmission side () and is transmissive to the electromagnetic field (). Furthermore, the coil apparatus () comprises a housing medium (), which is enclosed by the housing wall () in such a way that, when a through-opening () is formed in the housing wall (), the housing medium () passes through the through-opening (). Alternatively, a housing vacuum is provided which is enclosed by the housing wall in such a way that, when a through-opening is formed in the housing wall, atmospheric air () passes through the through-opening. Among further aspects, a vehicle comprising such a coil apparatus and a method for inductive power transmission are provided. The method comprises steps of providing an electromagnetic coil () for emitting and/or picking up an electromagnetic field (), covering the coil () on a transmission side () with a housing wall () which is transmissive to the electromagnetic field (), enclosing a fluid () with an internal pressure which is different than the atmospheric air by the housing wall (), sending the internal pressure, evaluating whether the internal pressure reaches a presettable internal pressure threshold value, and outputting a signal when the internal pressure reaches the internal pressure threshold value.

Coil apparatus and method for inductive power transmission

The present invention relates to a method () for transmitting electrical power between an energy supply grid () and an energy consumer () or energy producer () which is coupled to the energy supply grid (), wherein at least one electrical variable of the energy supply grid () is detected, wherein a discrepancy between the electrical variable and a rated variable of the energy supply grid () which is associated with the electrical variable is determined, wherein the power transmission is controlled on the basis of the discrepancy, and wherein the electrical variable is a mains frequency and/or a mains voltage of the energy supply grid () and the rated variable is a rated frequency and/or rated voltage of the energy supply grid ().

Method and apparatus for transmitting electrical power

The invention relates to a method, to a device, and to a system for determining a position of a vehicle. The method comprises the method steps: Measuring (S) at least one first magnetic field strength of a magnetic field at one each first position (A-i) by means of a first magnetic field sensor () arranged on a vehicle (); measuring (S) at least one second magnetic field strength of the magnetic field at one each second position (B-i) by means of a second magnetic field sensor () arranged on the vehicle () at a distance from the first magnetic field sensor (); determining (S) position data of the vehicle () at least by comparing data, which are based on the measured first and second magnetic field strengths, to a predetermined magnetic field data of the magnetic field; and outputting (S) a signal based on said position data.

Method, device and system for determining a position of a vehicle

The invention relates to an electrical plug () having a connection unit () which can be coupled to an electrical line () in order to transmit electrical energy, having at least one electrical contact pin () which has a plug section () and a coupling section (), wherein the coupling section () is electrically coupled to the connection unit (), and wherein the plug section () is designed to provide a releasable plug connection to an associated contact socket () in order to electrically couple the contact pin () to the contact socket (), and having a detection unit () which is designed to) detect a tensile force which is exerted on the contact pin () and/or a movement of the contact pin () relative to the contact socket (), and to provide a disconnection signal for interrupting the energy transmission process.

Electrical plug and energy transmission arrangement

The invention relates to a multi-stage charging device for a battery of a battery operated electrical motor. The multistage charging device comprises a buck converter, an intermediate circuit and a boost converter in order to generate a suitable direct charging current from a (one or three-phase) alternating current provided by a power connection. According to the invention, components of the electrical drive are used for the boost converter and the intermediate circuit: the electrical motor functions as an intermediate circuit and the drive converter functions as a boost converter. According to the invention, the coupling of the electrical motor to the network-side buck converter occurs so that at least half the charging current flows through at least one of the at least three coils of the electrical drive. The invention further relates to a corresponding method and to a corresponding use of the drive components.

Method and device for charging a battery of an electrical drive using components of the electrical drive

A control device has a plurality of possible attachment places for receiving attachment elements at least one of the attachment places being formed as a blocking attachment place which prevents receiving of an attachment element.

Control device with blockable attachment places

A housing ( ) for and electrical device having at least two housing parts ( ) and an electrical circuit on a printed-circuit board ( ) that can be attached in the housing ( ) are proposed. Furthermore, a connection device for the power supply of the device and/or signal transmission to the electronic circuit that is capable of being attached to the housing ( ) is provided. After the housing parts ( ) are joined, one housing wall ( ) that is integral with one of the housing parts ( ) forms an interference radiation-proof, chamber-like recess ( ) for accommodating the connection device. Furthermore, at least one electrically-conductive contact conductor tracks of the printed-circuit board ( ) connected with a ground connection of the housing.

Growing community of inventors

Vaihingen an der Enz, Germany

Bernd Eckert