Robert Boschgmbh

Norbert Knab

Nikolas Haberl

Guenther Riehl

Holger Pruessel

Thomas Mohr

Matthias Weber

Martin Hager

Michael Mueller

Georg Schulze-Icking-Konert

Christoph Klappenbach

Stefan Kotthaus

Stefan Stampfer

Frank Fischer

Rainer Burkel

Walter Haussecker

Claudius Muschelknautz

Roland Schmid

Juergen Rapp

Christoph Heier

Peter Schubert

Michael Soellner

Friedrich-Wilhelm Dreier

Martin Grosser

Joerg Wolf

Volker Aab

Klaus Voehringer

Jerome Thiery

Bernhard Bronkal

Wilhelm Eyberg

Jochen Benz

Patric Kahles

Michael Koerner

Richard Vogt

Klaus Roth

Klaus Eppel

Andreas Werner

Bernd Spielmann

Olaf Bock

Piotr Deptula

Johannes Heib

Karlheinz Lunghard

Ralf-Michael Bartke

Benoit Monzie

Joerg Eichhorn

Roland Schmidt

Werner Decker

Albert Eisele

Thomas Lojowski

Rainer Oettinger

Klaus Scherer

Thomas Asal

Peilei Chen

The invention relates to known housing seals of two housing parts lying against each other, a first housing part () having a first sealing surface () and a second housing part () having a second sealing surface (), which housing seals are equipped with a seal (), which is inserted into a groove () in the first sealing surface () of the first housing part (), wherein the groove () is covered by the second sealing surface () of the second housing part (). According to the invention, in order to prevent crevice corrosion, the groove () has an opening () between the sealing surfaces (), which is used to ventilate the groove () having the inserted seal. The invention is intended for water pumps, in particular for auxiliary water pumps of motor vehicles.

Housing seal of two housing parts lying against each other

A fuse () is proposed for interrupting a voltage and/or current-carrying conductor () in case of a thermal fault, having a conductor bar () ensuring an electrically conductive connection of the voltage and/or current-carrying conductor during correct operation, said fuse () being characterized in that the conductor bar () melts upon an increase in temperature above the melting point, and the electrically conductive connection of the voltage and/or current-carrying conductor is interrupted due to inherent surface tension. Also proposed is a method for producing the fuse () according to the invention.

Fuse for interrupting a voltage and/or current-carrying conductor in case of a thermal fault and method for producing the fuse

The invention relates to a thermal fuse in a circuit structure, particularly a punched grid, having a plurality of circuit areas, having the circuit structure with connections sites () and having a fusible element (), which is electrically and mechanically connected to the connection sites () of the circuit structure, a material of the fusible element () having a melting point, in order to melt at an ambient temperature greater than the melting point, such that material of the fusible element () collects at the connection sites () and the electrical connection formed by the fusible element () breaks.

Thermal fuse

Both a method and a use by this method of an apparatus for detecting blocking of a direct current motor (), in particular a direct current motor () for a blower of a motor vehicle, is presented. The direct current motor () is deactivated by a computer unit () with the aid of a switching means () for a defined time period (T). Within the defined time period (T), at least one subsequent time (t, t), an induced voltage (U) of the direct current motor () is measured and forwarded to the computer unit (). The direct current motor () remains deactivated if the induced voltage (U) undershoots a predetermined threshold value (U), or the direct current motor () is reactivated if the induced voltage (U) of the direct current motor () does not undershoot the predetermined threshold value (U).

Method and apparatus for detecting blocking of a direct current motor

The invention relates to a fan system for a controllably cooling a vehicle internal combustion engine comprising an electric fan motor and a control unit for controlling said fan motor, wherein said control unit controls the fan motor according to a regulation correcting variable dependent on a desired cooling power, the control unit is constructed in such a way that it controls the fan motor independently of the desired cooling power at a determined moment with a regulation-correcting variable increased with respect to a correcting variable for a predetermined space of time.

Fan system and a method for controlling a fan motor

A circuit arrangement and a method for adjusting the power consumption of a load of a cooling fan motor of a motor vehicle that can be operated by a direct-voltage system has at least one semiconductor switch in the supply current circuit of the load, and a control unit for triggering the semiconductor switch or switches. The load is connectable via at least one sense field-effect transistor to the direct-voltage system the measurement output of the sense FET is connected to the control unit, and the control unit furnishes a signal corresponding to the current consumption of the load at the respective operating point.

Circuit arrangement and method for adjusting the power consumption of a load that can be operated by a direct-voltage system

A method and a circuit for protecting an electric motor and/or its trigger circuit against overload in the emergency-operation mode in a motor vehicle direct-current fan motor operated by means of pulse width modulation, in which the trigger circuit is designed as an emergency-operation controller, with a microcontroller preceding the motor end stage and with a comparator assembly for detecting overvoltages. Overload protection is assured at elevated battery voltage and at the same time when the emergency-operation controller is activated in response to malfunctions in the normal triggering of the electric motor. To that end, at least one overvoltage threshold (U, U) is defined; when it is exceeded, the power supplied to the motor is reduced or switched off.

Method and circuit arrangement for protecting an electric motor from an overload

The invention relates to a method for monitoring and controlling reversing actions in electrically actuatable units, wherein an actuating drive unit can exert an actuating force in order to move an electrically actuatable unit, and a safety circuit automatically switches off the actuating drive unit after a jamming switch-off time that is predetermined for a movement if no movement occurs despite the triggering of the actuating drive unit. According to the invention, a triggered reversing action results in a temporary extension of the predetermined jamming switch-off time from a short jamming switch-off time tthat is predetermined for normal operation to a longer jamming switch-off time t().

Method for monitoring the reversing process of electrically actuatable units

A circuit configuration for operating an electric motor is described, the circuit configuration containing a timer. As a function of a first differential signal between a setpoint signal and an actual value signal, a regulator supplies a first switch signal for feeding current to the electric motor. Simultaneously, the timer is started which limits the current feed signal to a specified maximum time. A detection system detects a change in the setpoint signal and thereupon outputs a second switch signal that also starts the timer and is able to trigger the current feed to the electric motor. The circuit configuration both protects the electric motor from a thermal overload and also makes it possible to feed current to the electric motor if a setpoint changes. The circuit configuration is suitable to be used in a variable speed drive.

Circuit for operating an electric motor

In a method for operating an actuating device in a motor vehicle including the steps of measuring an actuating force exerted by the actuating drive, comparing the actuating force to a limit force, and reversing the actuating drive if the limit force is exceeded, provision is made that, while the motor vehicle is being driven, the measured values of the actuating force are filtered, prior to the comparison operation, in accordance with a first method, to suppress rapid changes in the actuating force on the basis of the path covered by the actuating drive, and, while the motor vehicle is at rest, with the engine turned off, in accordance with a second method where rapid changes are suppressed to a lesser extent than in the first method, or not filtered at all. A device for carrying out the method is specified.

Method and device for operating an adjusting drive in a motor vehicle

An electric-motor drive mechanism is proposed, with an electric motor ( ) that has a brush holder ( ) for containing brushes ( ) and at least one magnetic field sensor ( ) for detecting the magnetic field of a magnetic wheel ( ) non-rotatably connected to the motor armature shaft ( ) and an electronics housing ( ) for containing an electronics mounting plate ( ) for a set of motor output and/or control electronics. The electronics mounting plate ( ) is disposed outside an electric motor pole pot housing ( ) on a support ( ) formed onto the brush holder ( ) and that the at least one magnetic field sensor ( ) directly contacts the control electronics on the electronics mounting plate ( ) by means of first inserted strip conductors ( - - - - ) that are guided in bundles and are at least partially integrated into the brush holder ( ).

Electric motor-driven mechanism

Suggested is a circuit for operating computing components ( ), in particular microprocessors, which include a monitoring unit ( ) that transmits a reset signal ( ) to the computing component ( ) as a result of interferences ( ). A varied program sequence is provided in the computing component ( ), depending on a compare signal ( ) provided by a comparator ( ), which compares a signal ( ) with at least one threshold value ( ) that mirrors a condition of a device ( ), which cooperates with the computing component ( ). An adjustment device is planned as a preferred embodiment of a device ( ), wherein the condition corresponds to at least one position range that is preferably located at least near at least one stop position ( ) for the adjustment drive ( ).

Circuit for operating computing components, particularly microprocessors

In a sensor device including a magnetic field sensor which is arranged in stationary fashion and configured as a Hall sensor and is magnetically coupled to at least one stationary magnetic flux conductor which senses a variable magnetic field and delivers it to the Hall sensor, the Hall sensor delivering to an electronic control circuit an electrical signal which depends on the change in the magnetic field, in order to achieve a reduction in the space required for the electronic control circuit and the Hall sensors it is proposed the at least one Hall sensor, combined with at least one element of the electronic control circuit into an application-specific integrated circuit (ASIC), be arranged in an electronic component.

Sensor device having a magnetic field sensor integrated with an electronic control circuit

In order to reduce assembly cost for attaching the electronic module and to realize better protection of the circuit board in an electronic module for an electric motor operated drive unit, in particular, for an electric motor operated automobile window opener, including an electronic housing part, which can be attached to the housing of the drive unit, with a connector piece arranged thereon and a circuit board inserted in a mounting means the electronic housing part and having electric and/or electronic components, which circuit board is electrically connected to contact elements of the connector piece and to power leads fastened to the electronic housing part, with the power leads being provided with contact sections projecting from the electronic housing part, it is suggested that the electronic housing part be configured as a separate housing which has a housing interior which can be closed with a cover; that the circuit board be arranged completely in the housing interior; and that a second connector piece be arranged on the electronic housing part through which at least the contact sections of the power lead are brought out of the electronic housing part.

Electronic module for an electric motor operated drive unit

Fuel injection system for internal combustion engines

Growing community of inventors

Appenweier, Germany

Norbert Knab