Robert Boschgmbh

Dr. Ing. H.c. F. Porsche Aktiengesellschaft

Joerg Schneider

Jochen Weber

Peter Kohn

Sabine Arnold

Thomas Kaiser

Chrysanthos Tzivanopoulos

Sven Bergmann

Lisa Lorenz

Rolf Graef

Thomas Hubert

Tobias Schmack

Andreas Scharfenberg

Achim Kugler

Karsten Thoelmann

Thomas Barabas

Andreas Lober

Stefan Schmidt

Volker Geissinger

A stator for an electric machine includes: a laminated stator core including stator grooves and having a plug-in side and a bending side, which bending side lies opposite the plug-in side in an axial direction; a stator winding having hairpin elements which are pushed into the stator grooves on the plug-in side of the laminated stator core and bent and electrically connected to the stator winding on the bending side of the laminated stator core; and an end plate which is arranged on the plug-in side in the axial direction between the laminated stator core and the hairpin elements. The hairpin elements are arranged in the axial direction so as to bear against the end plate.

Stator for an electric machine, electric machine, motor vehicle, method for producing a stator

A stator for an electric machine provided for purely electrically driving a motor vehicle is provided with a stator body forming stator grooves, a stator winding through which current can flow, which engages in the respective stator groove and axially protrudes from the stator groove, for forming an electromagnetic rotating field and an insulation paper, which is provided in the stator groove between the stator winding and the stator body, for electrically insulating the stator winding from the stator body, wherein the insulation paper protrudes from the stator groove, wherein the insulation paper is provided with an additional layer on the surface thereof for providing a higher creepage resistance compared to the surface of the insulation paper without the additional layer.

Stator for an electric machine having insulation paper for a stator winding

The invention relates to a method for operating an electric energy store (), to an electric energy store (), and to a device, having an electric energy storage module (), a switch unit (), and a first and second connection (). The method has the following steps which follow one another chronologically: in a first step, a signal of a sensor of the electric energy store () is evaluated; in a second step, a critical state of the electric energy store () is ascertained; in a third step, an electrically conductive connection between the electric energy storage module () and the first and second connection () is interrupted in the charge direction by means of the switch unit (), while simultaneously the electrically conductive connection between the electric energy storage module () and the first and second connection () remains connected in the discharge direction.

Method for operating an electric energy store, electric energy store, and device

Electrical circuit arrangement for an energy storage system comprising a first electrochemical energy storage device and a second electrochemical energy storage device.

Electrical circuit arrangement for an energy storage system and method for operating said electrical circuit arrangement

A battery module () for a motor vehicle. The battery module () includes a battery unit (), a negative pole (), a positive pole (), a switching unit (), which is connected electrically in series with the battery unit () and has at least one controllable switching element, and a management system () for controlling the at least one switching element. A hold circuit () is provided, which is connected to the management system () and to the switching unit () in such a way that a control signal from the management system () can be transferred through the hold circuit () to the switching unit (), and is designed such that, in an active state of the hold circuit (), a control signal from the management system () to open the at least one switching element can be transferred to the switching unit () with a time delay.

Battery module for a motor vehicle, and motor vehicle

An insulation system for a tool includes a first element configured to electrically insulate an output unit of the tool from a detachably receivable tool element of the tool that is configured to process a workpiece. The insulation system further includes and a second element configured to electrically insulate the output unit toward the outside. A method includes mounting the insulation system on the tool.

Insulation system for a tool, tool, and method for mounting the insulation system on the tool

The invention relates to a method for measuring an electric current of a battery () with multiple battery modules (), having the step of measuring a temperature related to the battery module (). According to the method, the temperature of a connector is first determined for at least one battery module () using the measured temperature and a temperature model, and the electric resistance of the connector is determined using a resistance model and the temperature of the connector. The electric voltage which drops at the connector is then measured, and the electric current flowing through the connector is calculated from the voltage. The invention additionally relates to a corresponding device and to a battery comprising such a device.

Growing community of inventors

Ludwigsburg, Germany

Joerg Schneider