Patents Assigned to Preh GmbH
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Patent number: 12606229Abstract: A steering wheel for a motor vehicle is presented. The steering wheel includes a steering wheel hub configured for the detachable attachment to a steering shaft of the motor vehicle; a steering wheel rim fixed to the steering wheel hub; at least one electrode, which is integrated into the steering wheel rim, for the capacitive detection of a touch on the steering wheel rim; an electrically conductive connection disposed outside the steering wheel to apply an electrical measuring potential for touch detection to the electrode, and to detect the touch on the steering wheel rim; a non-volatile data storage unit on or in the steering wheel, wherein the non-volatile data storage unit is in each case configured or developed to be read out by a reading unit disposed outside the steering wheel and connected to the electronic evaluation unit in a data-transmitting manner.Type: GrantFiled: April 19, 2022Date of Patent: April 21, 2026Assignee: Preh GmbHInventors: Manfred Schneider, Lutz Doebrich
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Patent number: 12588144Abstract: The present disclosure relates to a component for the surface soldering installation on a circuit board, comprising: a basic body forming at least one locating surface provided for contact with a surface of the circuit board, or several locating points spanning a plane; two elastic brackets, which are formed on opposing sides of the basic body and respectively form one soldering surface for a solder connection with a positioning surface of the circuit board, wherein each of the two brackets has, in sequential arrangement over its course from the basic body to the soldering surface, a strip-shaped, flat, first portion and a strip-shaped, flat, second portion, wherein the main surfaces of the first portion are arranged at an angle to the main surfaces of the second portion; a use and an associated assembly.Type: GrantFiled: April 28, 2023Date of Patent: March 24, 2026Assignee: Preh GmbHInventor: Thilo Schultheis
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Patent number: 12503006Abstract: A circuit assembly for precharging a high-voltage DC voltage intermediate circuit for a motor vehicle is provided. The circuit assembly includes a high-voltage battery with battery terminals to which the intermediate circuit is electrically coupled. Intermediate circuit terminals of the intermediate circuit are electrically coupled to corresponding station terminals of a high-voltage charging station for providing a charging current, wherein the intermediate circuit terminals are each selectively, electrically coupled to corresponding feeding points of the intermediate circuit via charging current-connecting switching elements by opening and closing. The switching elements are opened prior to coupling the intermediate circuit terminals to the station terminals. Electric potentials of the feeding points are equalized to each other by a first precharging current.Type: GrantFiled: September 20, 2023Date of Patent: December 23, 2025Assignee: Preh GmbHInventors: Matthias Schernich, Maximilian Schneider, Darrell Parker
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Patent number: 12505964Abstract: The present disclosure relates to an input device, including a carrier; a contact part; a spring disposed between the carrier and the contact part, wherein the spring is adapted to mount the contact part on the carrier in an, along a deflection direction (RA), elastically self-resetting and a vibration-capable manner; wherein the spring is configured such that it is fixed by a positive fit by an insertion in a first direction into at least one carrier-side first accommodating portion of the carrier, and that it is fixed on the contact part by a positive fit by an insertion in a second direction into at least one contact part-side second accommodating portion.Type: GrantFiled: March 9, 2023Date of Patent: December 23, 2025Assignee: Preh GmbHInventors: Michael Jordan, Thilo Schultheis, Joachim Wuest
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Patent number: 12496812Abstract: The present disclosure relates to a visible part for an operating part or decorative panel, in particular for use in a motor vehicle, including a layer structure with the following layer sequence of layers while forming interfaces: a lower substrate layer; a decorative layer; an upper cover layer, wherein the upper cover layer is any one of: translucent and transparent; wherein the layer structure forms an end face into which an access to at least one interface enters, and wherein the substrate layer forms a projection with respect to the upper cover layer of the layer structure; wherein the visible part furthermore has an upper transparent protective paint layer, which covers the cover layer and the end face and which, if the visible part is attached as intended, forms a top surface facing towards an observer and covers the access; as well as to an associated manufacturing method.Type: GrantFiled: June 30, 2021Date of Patent: December 16, 2025Assignee: Preh GmbHInventors: Hans-Karl Heil, Dieter Gottwalt, Holger Steinmüller, Andre Kessler, Martin Sünnemann
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Publication number: 20250321275Abstract: An operating device has a first microcontroller, having at least one first measurement input, is adapted to detect a measurement potential at the first measurement input and to output an associated detection result that depends on the respective measurement potential; a voltage source having a supply voltage; a resistor network to apply the supply voltage, wherein the first measurement input is connected to a first tap; at least one switching element integrated in the resistor network, the switching state of the switching element is changed by operation by an operator; wherein the resistor network is adapted such that a different switching potential at the first measurement input is assigned to the respective switching state; a second microcontroller, superordinate to the first microcontroller is adapted to receive the respective detection result from the first microcontroller and to output said detection result to a superordinate control unit.Type: ApplicationFiled: April 10, 2025Publication date: October 16, 2025Applicant: Preh GmbHInventors: Johannes JEGER, Martin MÖLTER
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Patent number: 12384441Abstract: The present disclosure relates to a circuit and a method for carrying out an alternating heating and capacitive measuring mode by a common heating wire, including carrying out a heating mode, wherein, due to a switching by a control circuit, first switching elements and second switching elements are connected in series to the heating wire, and the heating wire is connected, to one of two heating potentials; triggering a switchover from the heating mode into a measuring mode by the control circuit; carrying out the measuring mode, in which the measuring capacitance of the heating wire relative to a reference potential is determined by a detecting circuit by applying to the heating wire an alternating voltage; carrying out a testing phase by a test circuit that is switched by the control circuit that a test impedance is connected to the measuring capacitance.Type: GrantFiled: January 26, 2023Date of Patent: August 12, 2025Assignee: Preh GmbHInventors: Friedrich Wieland, Georg Daniel
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Patent number: 12316321Abstract: A circuit assembly and a method for controlling operation states The circuit can be shifted by idle signals from the active operation state into the idle state and can be shifted by wake-up signals in an edge-triggered manner from the idle state into the active operation state if the wake-up signal executes a change in potential from a non-activation potential to an activation potential. The wake-up signals are supplied to a wake-up signal input of the circuit with the interposition of a masking circuit, which passes through the wake-up signals to the wake-up signal input in the idle state of the circuit and, in the active operation state of the circuit, applies to the wake-up signal input a predetermined electric masking potential, from which a change in potential towards the activation potential of the wake-up signal shifts the circuit from the idle state into the active operation state.Type: GrantFiled: July 6, 2023Date of Patent: May 27, 2025Assignee: Preh GmbHInventors: Mirco Albert, Andre Ress, Tim Scholz
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Patent number: 12311994Abstract: The present disclosure relates to an operating member including a support; an actuating part, which has an actuating surface facing towards an operator, and the actuating part has an edge region, which is provided outside the actuating surface and via which the actuating part is supported on the support; wherein the actuating part has a layer structure, defining the actuating surface, and the layer structure has at least two layers that differ in the modulus of elasticity; wherein, in a transitional region between the edge region and the actuating surface, a layer with the smallest modulus of elasticity is a highly elastic layer, and has the greatest layer thickness compared to other layers of the layer structure, in order to provide an elastic compliance of the actuating part; a force sensor disposed between the support and the actuating part detects a displacement of the actuating part.Type: GrantFiled: July 28, 2021Date of Patent: May 27, 2025Assignee: Preh GmbHInventors: Dennis Loeppen, Frank Dangel, Tobias Bodenstein, Peter Lochner, Jochen Schuhmann
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Publication number: 20250153761Abstract: The present disclosure relates to a circuit and a method for carrying out an alternating heating and capacitive measuring operation by means of a common heating wire, comprising the following steps: carrying out a heating operation, during which a pair of first switching elements and a pair of second switching elements are in a conducting state and the heating wire is conductively connected to one of two different heating potentials such that a heating current is applied to the heating wire; initiating a change from heating operation to measuring operation of the first switching elements and the second switching elements by way of a control circuit; carrying out the measuring operation in which a measuring capacitance of the heating wire is determined with respect to a reference potential by way of a detection circuit; and carrying out a test phase falling within the time frame of the measuring operation.Type: ApplicationFiled: January 20, 2023Publication date: May 15, 2025Applicant: Preh GmbHInventors: Manfred SCHNEIDER, Friedrich WIELAND
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Publication number: 20250091463Abstract: The present disclosure relates to a method for charging a high-voltage battery, having the steps of: providing the high-voltage battery with a nominal battery voltage, providing a charging station with a nominal charging voltage, which is lower than the nominal battery voltage, connecting a station-side protective earth conductor terminal to a battery-side protective earth conductor terminal to form a protective earth conductor, adjusting a voltage between a first, battery-side high-voltage potential and the protective earth conductor to equal half the nominal charging voltage, electrically connecting a first station-side high-voltage potential to the first battery-side high-voltage potential, electrically connecting a second station-side high-voltage potential to a second battery-side high-voltage potential, and controlling the discharge current by means of a resistance control. The present disclosure also relates to a device configured to charge a high-voltage battery.Type: ApplicationFiled: October 26, 2022Publication date: March 20, 2025Applicant: Preh GmbHInventors: Marc NEITZ, Alexander MATTHIAS
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Patent number: 12214663Abstract: The present disclosure relates to an input assembly including: a support, an input part, and at least one light source, wherein the input part has at least one input layer having an input surface intended to be touched by an operator, and a light guide for guiding light of the light source towards the display region for backlighting the latter, and wherein the light guide is disposed on the side of the input part facing away from the input surface, a touch-detection device for detecting a touch on the input surface by the operator and/or an actuation detection device for detecting an actuation of the input part by the operator, and an electromagnetic actuator for exciting a movement of the input part along the direction of movement by means of an electric control signal in order to generate a haptic feedback, wherein the actuator includes an electromagnet.Type: GrantFiled: March 3, 2020Date of Patent: February 4, 2025Assignee: Preh GmbHInventors: Johannes Dünninger, Michael Jordan
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Patent number: 12187124Abstract: A display device including a cover body with a surface facing an observer and a back face facing away from the observer, the cover body has at least two translucent to transparent cover body components which each form a portion of the surface and a portion of the back face; at least one opaque masking layer on the surface facing the observer and which the portion of the surface of the less light transmissive cover body component delimits a first display area to be backlit and the portion of the surface of the more light transmissive cover body component delimits a second display area to be backlit; a support having a plurality of light sources arranged on the side of the cover body facing away from the observer to backlight the display areas; and a frame integrally bonded to the cover body to secure the cover body on the support.Type: GrantFiled: May 10, 2024Date of Patent: January 7, 2025Assignee: Preh GmbHInventors: Andre Kessler, Jonas Sterzinger, Andreas Saal, Dominik Endres
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Patent number: 12151413Abstract: A method for producing a plastic composite panel which is provided as a layer structure. The method includes providing a film layer structure comprising an adhesive layer which is arranged between two transparent plastic films. The film layer structure is pre-molded to assume an approximately final shape and is arranged in a molding tool so that a first main surface of the film layer structure is towards the molding surface of the molding tool and so that a cavity is formed between the second main surface of the film layer structure and a surface of the molding tool. The film layer structure is then back-molded in a thermal molding method step while introducing a thermoplastic material into the cavity to provide the layer structure. A pre-molding and back-molding step, a rigidification of the thermoplastic layer, and a demolding of the layer structure is further performed.Type: GrantFiled: August 7, 2020Date of Patent: November 26, 2024Assignee: PREH GmbHInventors: Peter Lochner, Steffen Neubauer, Benedikt Rueckert, Martin Suennemann
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Publication number: 20240375514Abstract: The invention relates to a display device (1) comprising: a cover body (2) which forms a surface (O) facing an observer and a back face (R) facing away from the observer, with the cover body (2) being formed by at least two, integrally bonded, translucent to transparent cover body components (2a, 2b) which each form a portion of the surface (O) and each form a portion of the back face (R) under the formation of a common interface (G) that extends between the surface (O) and the back face (R) and with the two cover body components (2a, 2b) differing in terms of their light transmittance; at least one opaque masking layer (10) which is applied to the surface (O) facing the observer and which, in the portion of the surface (O) formed by the less light transmissive cover body component (2a), delimits a first display area (S1) to be backlit and which, in the portion of the surface (O) formed by the more light transmissive cover body component (2b), delimits a second display area (S2) to be backlit; a support (3Type: ApplicationFiled: May 10, 2024Publication date: November 14, 2024Applicant: Preh GmbHInventors: Andre KESSLER, Jonas STERZINGER, Andreas SAAL, Dominik ENDRES
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Patent number: 12128829Abstract: The present disclosure relates to a display arrangement, including: a cover that is transparent at least in some regions; a support frame adapted to fix the display arrangement on a supporting structure; a pixel matrix display having a display surface; a housing; wherein the support frame is arranged adjacent to the cover and an intermediate space, which is delimited by the support frame and the cover, is formed and is filled with a thermoplastic elastomer; wherein the cover and the support frame form a well, in which the pixel matrix display is accommodated; wherein a transparent adhesive layer is formed in the well between the display surface and the cover to fix the pixel matrix display on the cover, with the display surface being visible through the cover and the adhesive layer; wherein the housing fits over the pixel matrix display and is fixed on the support frame.Type: GrantFiled: June 24, 2021Date of Patent: October 29, 2024Assignee: Preh GmbHInventors: Thomas Schmidt, Michael Martin
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Patent number: 12097764Abstract: An operating member including a support; an actuating part mounted on the support by a mount, to be movable relative to the support, by manual actuation against a resetting force to carry out an actuating movement from a rest position into a depressed position; and a detector, having at least one force sensor, adapted to detect at least one position of the actuating part is presented. The mount includes a guidance mechanism having at least one pair of coupled levers, wherein the levers are each pivotably mounted on the support by a first pivot joint defining at least one first pivot axis and on the actuating part by a second pivot joint defining at least one second pivot axis to cause a pivoting movement of the levers by the actuating movement. The guidance mechanism further includes at least one coupling rod to couple the pivoting movement of the levers.Type: GrantFiled: September 15, 2022Date of Patent: September 24, 2024Assignee: Preh GmbHInventors: Arthur Klossek, Thomas Ofenhitzer, Thilo Schultheis, Andreas Hofmann
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Publication number: 20240291258Abstract: The present disclosure relates to a busbar arrangement for electrical multipolar high-current connection in an electrically driven motor vehicle. The busbar arrangement includes a plurality of essentially planar supports formed of an electrically insulating material which are stacked in a stacking direction, each of which forms one or more trough-shaped receptacles which are open on one side; a plurality of busbars formed of a metal or of a metal alloy, each of which is accommodated in one of the trough-shaped receptacles; wherein at least one support of a plurality of essentially planar supports comprises a contact surface for a respective busbar, and thus a base forming a trough base of the trough-shaped receptacle and, for each trough-shaped receptacle, a first flange which circumferentially encloses the respective busbar and forms a side wall of the trough-shaped receptacle.Type: ApplicationFiled: September 1, 2022Publication date: August 29, 2024Applicant: Preh GmbHInventors: Julian FAULHABER, Frederik PÜSCHEL, Volker Rüdiger REUSS, Stefan Werner GELLERT
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Patent number: 12071071Abstract: The present disclosure relates to a vehicle steering wheel, including: a steering wheel body with a hub region for attachment to a steering shaft, with a steering wheel rim and with at least one spoke for attaching the steering wheel rim to the hub region; an airbag initiation device; wherein an electromechanical triggering device has at least one force transducer, which is disposed between a projection and the steering wheel body and via which the impact absorber cover is supported on the steering wheel body, for measuring a force value that can be associated with an actuating force acting on the actuating surface of the impact absorber cover; wherein the electromechanical triggering device has at least one electronic evaluation unit connected in an electrically conductive manner to the force transducer to determine an actuating force value by a force value measured by the at least one force transducer.Type: GrantFiled: February 17, 2020Date of Patent: August 27, 2024Assignee: PREH GMBHInventors: Oliver Katzenberger, Stefan Wahl, Dirk Ruetzel, Martin Schäfer, Sebastian Schrenk
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Patent number: 12066652Abstract: The present disclosure relates to a function display for selectively displaying several symbols representing one switching function, respectively, and/or at least two switching states, including a light guide stack which forms a display surface facing towards an observer; wherein the light guide stack is formed from at least planar light guides arranged in an overlaid manner in a stacking direction, which are arranged so as to be spaced apart by a transparent or translucent layer; at least one light source per light guide wherein, further, at least one microstructured symbol area in or on the light guide which is configured, if the light source is activated, to be visible to the observer; a circuit board on which the several light sources are arranged and fixed; a panel fixed to the light guide stack to which the circuit board is fixed while resting against a mounting surface.Type: GrantFiled: June 15, 2022Date of Patent: August 20, 2024Assignee: Preh GmbHInventors: Wolfgang Schustek, Michael Benkert