Patents Assigned to Lisa Dräxlmaier GmbH
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Publication number: 20230358615Abstract: The present disclosure relates to a temperature measuring device for measuring a temperature of a pin-shaped electrical contact element, which includes a flexible circuit board with a first thermally conducting and electrically insulating substrate layer. The first substrate layer includes a contact surface that is configured to lie flat against a flange of the pin-shaped electrical contact element and an opening disposed in the contact surface. The pin-shaped electrical contact element is disposed at least partially in the opening. The flexible circuit board further includes a second thermally and electrically conducting layer that is disposed on a sensor surface opposite the contact surface of the first substrate layer and includes a sensor element connected to the sensor surface. The sensor element is configured to record a temperature of the pin-shaped electrical contact element when the pin-shaped electrical contact element is at least partially disposed in the opening.Type: ApplicationFiled: July 21, 2023Publication date: November 9, 2023Applicant: LISA DRÄXLMAIER GMBHInventors: Stephan SCHAFFERHANS, Krzysztof MURGOTT
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Patent number: 11791654Abstract: A battery system for an electric vehicle is disclosed having a first battery connectable to a first electric drive; a second, redundant battery, connectable to a second, redundant electric drive; and an electronic power switch having a first input terminal, a second input terminal, and an output terminal, the first input terminal being electrically connected to the first battery, the second input terminal being electrically connected to the second battery, and the output terminal being electrically connectable to an electrical accessory, the electronic power switch being configured to selectively and electrically connect the output terminal to the first input terminal or the second input terminal to provide electrical power from the first battery or the second battery to the electrical accessory.Type: GrantFiled: January 22, 2022Date of Patent: October 17, 2023Assignee: LISA DRÄXLMAIER GMBHInventor: Michael Wortberg
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Patent number: 11784443Abstract: A multifunction carrier for receiving circuit components of a battery system for an electric vehicle is disclosed, wherein the multifunction carrier includes: a busbar assembly with at least one charging connection rail and a drive connection rail; and an insulating housing in which the busbar assembly is embedded, wherein the insulating housing has openings exposing contact surfaces of the connecting rails, and wherein the insulating housing has plug connectors which are designed to provide a pluggable mechanical and electrical contact between the circuit components of the battery system with the open contact surfaces of the connecting rails. The invention further relates to a high-voltage contactor for a battery system of an electric vehicle.Type: GrantFiled: December 21, 2021Date of Patent: October 10, 2023Assignee: LISA DRÄXLMAIER GMBHInventors: Florian Roemelsberger, Thomas Hackel, Christian Schmidbauer, Mike Hoffmann
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Patent number: 11757678Abstract: A distributor device and a method for a data network in a motor vehicle includes a number of first communications interfaces which can be coupled to communications partners of a first priority and a number of second communications interfaces which can be coupled to communications partners of a second priority. The second priority is lower than the first priority. The distribution device further includes a coupling device configured to couple together the first communications interfaces and the second communications interfaces, such that they communicate together, and a monitoring device configured to monitor communication along the second communications interfaces, and in the event of a communications error on one of the second communications interfaces to disconnect at least the first communications interfaces from the corresponding second communications interface so as to interrupt the communications.Type: GrantFiled: November 22, 2021Date of Patent: September 12, 2023Assignee: Lisa Draexlmaier GmbHInventors: Ulrich Egenhofer, Michael Wortberg
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Publication number: 20230268657Abstract: A horn antenna element includes a septum polarizer configured to transform a linear polarized input signal into a circular polarized output signal at a common port, and a horn radiator. The horn radiator includes an input geometry formed as a quad-ridge waveguide to receive the circular polarized output signal at the common port and an aperture grid to radiate a grid-based circular polarized output signal. The septum polarizer is embedded in the quad-ridge waveguide at the common port.Type: ApplicationFiled: April 11, 2023Publication date: August 24, 2023Applicant: LISA DRÄXLMAIER GMBHInventors: Thomas MERK, Ievgen BILOGUROV
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Publication number: 20230194624Abstract: A battery management system for classifying a battery module includes an interface and a processor. The battery module has a first and a second battery cell. The processor is configured to determine reference voltage curve on the basis of a mean voltage value of a first voltage curve associated with the first battery cell and a second voltage curve associated with a second battery cell and compare the first voltage curve to the reference voltage curve in order to obtain a first metric, and compare the second voltage curve to the reference voltage curve in order to obtain a second metric, and assign to the first voltage curve a first electrical characteristic and to the second voltage curve section of the reference voltage curve a second electrical characteristic in order to classify the battery module based on the first electrical characteristic and the second electrical characteristic.Type: ApplicationFiled: February 13, 2023Publication date: June 22, 2023Applicant: LISA DRÄXLMAIER GMBHInventors: Florian HINTERBRANDNER, Simon MEIER, Paul OBERMAYER
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Publication number: 20230089971Abstract: A cell connector for connecting round cells of a battery includes a plurality of electrical contact elements that are each configured to electrically connect a first round cell to a second round cell. The each electrical contact element includes a contact base. The electrical contact elements can each be connected via the contact base to a positive terminal of the first round cell in a material-bonded manner. The electrical contact elements each includes a plurality of contact tabs, with which the electrical contact elements can each be contacted to a negative terminal of the second round cell. An electrical contact element is respectively connected via an electrically conductive connecting bridge to a further electrical contact element. In an area between the electrically conductive connecting bridge and at least one contact tab adjacent to the electrically conductive connecting bridge material of the electrical contact element is recessed.Type: ApplicationFiled: September 20, 2022Publication date: March 23, 2023Applicant: Lisa Draexlmaier GmbHInventor: Guido HOFER
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Patent number: 11607993Abstract: A vehicle interior lighting apparatus is disclosed. It includes an elongate light guide having at least one end-side light input coupling surface, a longitudinal light deflection surface and a longitudinal light output coupling surface opposite the light deflection surface, and at least one light source, the light of which is able to be coupled into the light guide at the at least one light input coupling surface and able to be coupled out of the light guide at the light output coupling surface by way of a light deflection at the light deflection surface. At least one light deflection prism is disposed optically downstream of the light output coupling surface and there is at least one jump between two refractive indices in a light path between the light guide and the at least one light deflection prism and the at least one light deflection prism is disposed between two adjacent light deflection regions when viewed perpendicular to the light output coupling surface.Type: GrantFiled: February 11, 2020Date of Patent: March 21, 2023Assignee: LISA DRÄXLMAIER GMBHInventors: Josef Kiermaier, Alexandr Zaviyalov
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Publication number: 20230074917Abstract: A method for welding at least three cables, each with two conductors protruding from the sheath ends of the cables includes stripping ends of the first conductors and stacking from opposite directions atop one another forming a first stack. The stripped ends of the second conductors are stacked atop one another from opposite directions at a working distance from the first stack forming a second stack. The first stack is arranged in a welding area of a welding device and welded to a first welding point, while the second stack is arranged in a waiting area spaced by the working distance from the welding area. The first welding point is moved by the working distance from the welding area to a storage area, while the second stack is moved by the working distance from the waiting area into the welding area and is welded to a second welding point.Type: ApplicationFiled: November 15, 2022Publication date: March 9, 2023Applicant: LISA DRÄXLMAIER GMBHInventors: Lutz LEHMANN, Thomas KAPFENBERGER
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Publication number: 20230033261Abstract: A force measurement module for determining of a force when installing a battery module into a battery housing includes a housing having a shape and external dimensions substantially of the battery module and at least one force sensor arranged in the housing. The at least one force sensor is configured to determine a force when installing the housing into the battery housing. Furthermore, a method for determining a force when installing a battery module into a battery housing is provided.Type: ApplicationFiled: September 30, 2022Publication date: February 2, 2023Applicant: Lisa Draexlmaier GmbHInventors: Christian AUER, Michael RÖMELSBERGER, Josef GROSSE KRABBE, Stefan KOLLMER
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Publication number: 20230025128Abstract: A method for monitoring a switchable semiconductor component having a protective circuit connected in parallel to the semiconductor component includes tapping an electrical variable applied to the semiconductor component and the protective circuit, and detecting damage to the semiconductor component and/or the protective circuit when an electrical variable is greater than a previously known critical value.Type: ApplicationFiled: July 20, 2022Publication date: January 26, 2023Applicant: Lisa Draexlmaier GmbHInventors: Thomas RAPOLDER, Michael WORTBERG
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Publication number: 20230003807Abstract: A voltage tap for measuring a voltage includes at least one contact region and one abutment surface. Using the abutment surface, the voltage tap is electrically connectable to a contact surface of an electrical circuit board. The abutment surface comprises an enlarged surface with respect to the contact surface of the electrical circuit board, so that the electrical connection between the voltage tap and the electrical circuit board is provided independently of a movement of the voltage tap.Type: ApplicationFiled: June 23, 2022Publication date: January 5, 2023Applicant: Lisa Draexlmaier GmbHInventors: Michael STECKEL, Guido HOFER, Maximilian BACHES, Hendrik MUELLER
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Publication number: 20220371459Abstract: A device for opening and closing a charging socket includes a flap element. Using a shaft, the flap element is movably disposed on a housing of the charging socket, and the shaft comprises a first notch and a second notch. The device further includes a retaining element. The retaining element is mechanically attached to the flap element and comprises a bolt. Using the shaft, the flap element is transferrable from a closed position to an opened position. In the closed position of the flap element, the bolt of the retaining element is latched in the first notch of the shaft. In the opened position of the flap element, the bolt of the retaining element is latched in the second notch of the shaft.Type: ApplicationFiled: May 19, 2022Publication date: November 24, 2022Applicant: Lisa Draexlmaier GmbHInventors: Stefan WIMMER, Veronika GIELHAMMER, Uros LIVK, Benjamin REIL, Daniel WILL
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Publication number: 20220376486Abstract: An electronic fuse circuit for safeguarding a multi-channel electronic power distributor includes a driver circuit for each channel of the power distributor configured to control an electronic switch of a corresponding channel to assume a certain state, and a microcontroller interface configured to receive from a microcontroller a command for setting the state of the electronic switch of a corresponding channel. The driver circuit of the corresponding channel is configured to set the state of the electronic switch of the corresponding channel according to the command from the microcontroller. The electronic fuse circuit further includes a safety circuit for detecting a malfunction in the microcontroller and/or the power distributor. In the event of a detected malfunction in the microcontroller and/or the power distributor, the driver circuit of each channel is configured to set the state of the electronic switch of the corresponding channel according to a channel-specific preconfigured safety state.Type: ApplicationFiled: May 19, 2022Publication date: November 24, 2022Applicant: Lisa Draexlmaier GmbHInventor: Michael WORTBERG
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Patent number: 11505140Abstract: A method for controlling two serially disposed relays that switch a load with two different safety levels depending on the driving situation in a vehicle includes querying state information that includes movement state information and/or coasting operation information of the vehicle, determining a safety level of the two different safety levels depending on the driving situation, using the state information, detecting a relay of the two serially disposed relays using a balancing rule when the safety level determined in step b) represents a lower safety level of the two safety levels, switching the selected relay into a non-conductive state and keeping the further relay in a conductive state when a first request signal for switching off the load is received, and switching the selected relay into a conductive state when a second request signal for switching on the load is received.Type: GrantFiled: August 7, 2019Date of Patent: November 22, 2022Assignee: Lisa Draexlmaier GmbHInventor: Anton Bachmeier
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Publication number: 20220336928Abstract: A battery module connector for electrically conductive connecting of two battery modules includes a first contact element for electrically conductive contacting of a first battery module, a second contact element for electrically conductive contacting of a second battery module, a band-shaped wire braid that is electrically conductively connected at a first end to the first contact element and at a second end to the second contact element, and at least one spring element that is inserted into a section of the wire braid between the first end and the second end, and is configured to impinge the section with a spring force such that the section is widened radially with respect to a longitudinal axis of the wire braid.Type: ApplicationFiled: April 20, 2022Publication date: October 20, 2022Applicant: Lisa Draexlmaier GmbHInventor: Leonard DOBOS
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Patent number: 11454656Abstract: A signal generating device for generation of measurement signals for an electrical system includes a housing which features an electrically conducting material, an energy reservoir arranged in the housing, a data interface arranged at the housing and designed to receive signal data, a coupling interface arranged at the housing and coupled to the electrical system, and a signal generator arranged in the housing. The signal generator is coupled to the electrical energy reservoir, to the data interface and to the coupling interface. The signal generator is designed, based on the signal data, to generate the measurement signals and to output them via the coupling interface. A corresponding measuring device is also included.Type: GrantFiled: April 22, 2021Date of Patent: September 27, 2022Assignee: LISA DRAEXLMAIER GMBHInventors: Christian Zacherl, Andreas Kempf, Vencislav Todorov, Thomas Mayer
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Patent number: 11437754Abstract: A plug-connector module for electrical contacts in the vehicle sector features the following: at least two contact elements that each feature at least one contact opening for receiving an electrical contact, and each features at least one first engagement device; and at least one positioning element for connecting the contact elements. For this purpose, the positioning element includes at least two second engagement devices that are configured complementary to the first engagement devices. Each contact element features at least one positioning opening for pushing-through the at least one positioning element. Furthermore, the present disclosure relates to a method for connecting at least two contact elements to a plug-connector module.Type: GrantFiled: April 21, 2021Date of Patent: September 6, 2022Assignee: Lisa Draexlmaier GmbHInventor: Ulrich Egenhofer
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Publication number: 20220268992Abstract: A method for manufacturing a Paspol light guide includes disposing a plurality of light guides adjacent to one another so that the light guides form a light-guide bundle, disposing an at least partially light-transparent fabric along at least one partial section of the light-guide bundle, sheathing the light-guide bundle by the fabric so that the fabric forms a fabric sleeve, and closing the fabric sleeve along its longitudinal side. When viewed in a cross-section, the fabric sleeve forms a flag protruding from the light-guide bundle.Type: ApplicationFiled: February 18, 2022Publication date: August 25, 2022Applicant: Lisa Draexlmaier GmbHInventor: Bernhard Bayersdorfer
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Publication number: 20220258636Abstract: A method for charging an electrically powered vehicle includes predetermining a maximum charging current of a charging process for charging the vehicle before the start of the charging process based on an electrical resistance of at least one interface component of an interface between a charging device and the vehicle. The electrical resistance is determined during at least one previous charging process. The method further includes charging the electrically powered vehicle based on the predetermined maximum charging current.Type: ApplicationFiled: May 5, 2022Publication date: August 18, 2022Applicant: Lisa Draexlmaier GmbHInventor: Stephan SCHAFFERHANS