Patents Assigned to Vitesco Technologies GmbH
  • Internal combustion engine comprising a turbocharger with variability at the compressor inlet
    Patent number: 11300043
    Abstract: An internal combustion engine having a turbocharger with variability at the compressor inlet, and a turbocharger. An internal combustion engine having a turbocharger, and a turbocharger, are described. A device which both performs a change in the cross section of the compressor inlet and brings about an adjustment of the exhaust gas recirculation rate is arranged in the region of the compressor inlet. As a result, the turbocharger is of space-saving and low-cost construction in the compressor inlet region.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: April 12, 2022
    Assignee: Vitesco Technologies GmbH
    Inventors: Mathias Bogner, Christoph Schäfer
  • EXHAUST GAS AFTERTREATMENT DEVICE
    Publication number: 20220105503
    Abstract: A device for the aftertreatment of exhaust gases from an exhaust-gas source, having a spatially delimited flow path through which flow may pass proceeding from the exhaust-gas source, having a heating catalytic converter which is arranged in the flow path and which, as viewed in a flow direction, firstly has a catalytically active catalytic converter through which flow may pass and, following this in the flow direction, has an electrically heatable heating disk, wherein at least one outlet of a secondary air supply is arranged in the region of the heating catalytic converter such that a gas flow referred to as secondary air is fed into the flow path in the region of the heating catalytic converter.
    Type: Application
    Filed: December 16, 2021
    Publication date: April 7, 2022
    Applicant: Vitesco Technologies GMBH
    Inventors: Holger Stock, Philipp Langenfeld, Peter Hirth, Erwin Achleitner, Gerhard Haft, Florian Kleiner, Paul Rodatz
  • EXHAUST GAS AFTERTREATMENT DEVICE
    Publication number: 20220106899
    Abstract: A device for exhaust-gas aftertreatment, having a first, tubular flow path, having a diverting region and having a second, annular flow path. The tubular flow path is formed by an inner pipe and the annular flow path is, by an outer pipe running substantially parallel to the inner pipe, formed between the inner pipe and the outer pipe, and the diverting region is designed to divert the exhaust-gas flow from the tubular flow path into the annular flow path. The device has an annular catalytically active substrate body and an annular particle filter, wherein the substrate body and the particle filter are arranged in the annular flow path.
    Type: Application
    Filed: December 16, 2021
    Publication date: April 7, 2022
    Applicant: Vitesco Technologies GMBH
    Inventors: Rolf Brück, Peter Hirth, Sven Schepers, David Odenthal
  • EXHAUST GAS AFTERTREATMENT DEVICE
    Publication number: 20220105465
    Abstract: A device for exhaust-gas aftertreatment, such as an annular catalytic converter, having a first, tubular flow path, having a diverting chamber and having a second, annular flow path, wherein the tubular flow path is delimited outwardly in the radial direction by an inner pipe and the second, annular flow path is delimited inwardly in the radial direction by the inner pipe and outwardly in the radial direction by an outer pipe, and the diverting chamber is designed to divert the exhaust-gas flow from the tubular flow path (8) into the annular flow path, wherein the annular catalytic converter has at least one annular substrate body which has a catalytically active coating applied to it and which is arranged in the annular flow path.
    Type: Application
    Filed: December 16, 2021
    Publication date: April 7, 2022
    Applicant: Vitesco Technologies GMBH
    Inventors: Rolf Brück, Peter Hirth, Sven Schepers, David Odenthal
  • Method for checking the function of a pressure sensor in the air intake tract or exhaust gas outlet tract of an internal combustion engine in operation and engine control unit
    Patent number: 11293368
    Abstract: A method for checking the function of a pressure sensor in the air intake tract or gas outlet tract of an internal combustion engine and to an engine control unit for carrying out the method and based on measuring dynamic pressure oscillations of the intake air or the exhaust gas by the relevant pressure sensor and, on the basis of the pressure oscillation signal obtained, respectively determining with the aid of a discrete Fourier transformation for a number of selected signal frequencies in each case a value of a specific operating characteristic of the internal combustion engine and deviation values of the values determined for the different signal frequencies from one another. Depending on whether deviation values determined fall below or exceed a predetermined limit value, the satisfactory function of the pressure sensor is confirmed, or a malfunction of the pressure sensor is diagnosed.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: April 5, 2022
    Assignee: Vitesco Technologies GmbH
    Inventors: Tobias Braun, Frank Maurer, Jürgen Dingl, Sven-Michael Eisen
  • Screw spindle pump, fuel pump assembly, and fuel pump unit
    Patent number: 11293433
    Abstract: A screw-spindle pump comprising: first and second screw spindles forming running and drive spindles, respectively, and a pump housing configured to receive the first and second screw spindles. The first and second screw spindles form, with at least the pump housing, delivery chambers, moving from a suction side to a pressure side of the pump as a consequence due to rotation of the screw spindles. The pump housing has an elongate insert, as an abutment for the first and second screw spindles and against which the first and second screw spindles are supported, the elongate insert having a first portion forming a first abutment for the second screw spindle and a second portion forming a second abutment for the first screw spindle. The elongate insert is clamped into a receptacle of the pump housing using a cross-sectional dimension of the elongate insert.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: April 5, 2022
    Assignee: Vitesco Technologies GmbH
    Inventors: Johannes Deichmann, Tim Gonnermann, Marc Völker
  • Method and Device for Pressure Regulation in a Fuel Hight-Pressure Injection System
    Publication number: 20220099045
    Abstract: The disclosure relates to a method for pressure regulation in a fuel high-pressure injection system having an overpressure valve, in which pressure pulsations occur which are caused by fuel being pumped into a high-pressure fuel accumulator and extracted from the high-pressure fuel accumulator. The method includes detecting pressure values of the fuel present in the high-pressure fuel accumulator. The method also includes comparing the detected pressure values with a nominal pressure value; and carrying out a pressure regulation in which the fuel pressure prevailing in the high-pressure fuel accumulator is set to the nominal pressure value. During pressure regulation, a peak pressure value of the detected pressure values is used as the actual pressure value. The disclosure also relates to a device for pressure regulation in a fuel high-pressure injection system.
    Type: Application
    Filed: December 13, 2021
    Publication date: March 31, 2022
    Applicant: Vitesco Technologies GmbH
    Inventors: Michael Wirkowski, Walter Sassler, Jan Kempinger
  • Alternating-current charging device for a motor vehicle, and method for operating an alternating-current charging device for a motor vehicle
    Patent number: 11285825
    Abstract: An AC charging device for a motor vehicle has a neutral conductor, at least one phase conductor, and at least one rectifier. The neutral conductor and the at least one phase conductor are connected to the rectifier, to which at least one smoothing capacitor is also connected. The AC charging device has a precharge circuit arranged between a mains connection and the at least one smoothing capacitor. The precharge circuit is designed to precharge the at least one smoothing capacitor. The precharge circuit has at least one transistor.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: March 29, 2022
    Assignee: Vitesco Technologies GmbH
    Inventors: Franz Pfeilschifter, Martin Goetzenberger, Klaus Muehlbauer
  • Fuel cell arrangement having differential pressure control for an H2/O2 fuel cell
    Patent number: 11289719
    Abstract: A fuel cell arrangement has an anode connected to an H2 inflow and a cathode connected to an O2 inflow. A differential pressure control device is arranged between the H2 inflow and the O2 inflow for controlling a differential pressure between the H2 inflow and the O2 inflow. The differential pressure control device has a fluid connection between the H2 inflow and the O2 inflow, in which a deflectable diaphragm is arranged, to which a pin is coupled, which, when the diaphragm is deflected, opens a valve arranged in the H2 inflow.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: March 29, 2022
    Assignee: Vitesco Technologies GmbH
    Inventors: Matthias Bleeck, Christoph Aumueller, Florian Braun, Stefan Kulzer
  • Suction jet pump with sealing of the injection mold installation opening by a metal ball fixed with plastic deformation
    Patent number: 11280353
    Abstract: A method for the production of a suction jet pump delivering fuel into or out of a fuel tank, wherein the suction jet pump has a flow channel and a nozzle, and wherein the flow channel forms a feed line to the nozzle and the flow channel is formed in one piece with the nozzle, the method including, in the following order: placing a mold core into a matrix to produce the suction jet pump by injection molding and form a cavity between the mold core and the matrix; encapsulating the mold core and filling the cavity formed between mold core and matrix with a plastic; removing the mold core through an installation opening, arranged opposite the nozzle, in the flow channel; and closing the installation opening by thermal deformation, in the edge region of the installation opening, of the plastic used for the production of the suction jet pump.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: March 22, 2022
    Assignee: Vitesco Technologies GmbH
    Inventors: Bernd Pauer, Bastian Lücke
  • EXHAUST GAS AFTERTREATMENT SYSTEM AND METHOD FOR CONTROLLING AN EXHAUST GAS AFTERTREATMENT SYSTEM OF AN INTERNAL COMBUSTION ENGINE
    Publication number: 20220082041
    Abstract: The disclosure relates to an exhaust gas aftertreatment system for treating exhaust gas from an internal combustion engine. The exhaust gas aftertreatment system includes an exhaust gas catalyst that includes an exhaust gas catalysis portion and a heating element. The heating element is configured to heat the exhaust gas catalysis portion. The exhaust gas aftertreatment system also includes: a voltage source which supplies the heating element with electric power for heating the heating element, and a DC to DC converter which is configured to control the electric power supply from the voltage source to the heating element. The exhaust gas aftertreatment system also includes a control unit which is configured to control the DC to DC converter based on the required electric power to heat the exhaust gas catalysis portion.
    Type: Application
    Filed: November 22, 2021
    Publication date: March 17, 2022
    Applicant: Vitesco Technologies GmbH
    Inventor: Aurelian Kotlar
  • Motor vehicle having an AC charging device with a precharge circuit for a smoothing capacitor
    Patent number: 11277020
    Abstract: An AC charging device for a motor vehicle has a neutral conductor, at least one phase conductor, and at least one rectifier. The neutral conductor and the phase conductor are connected to the rectifier and the rectifier is furthermore electrically connected to at least one smoothing capacitor. The AC charging device includes a precharge circuit arranged between a mains connection of the AC charging device and the smoothing capacitor. The precharge circuit is designed to precharge the smoothing capacitor. The phase conductor, in a connection section, is connected to at least one further phase conductor of the AC charging device by way of a cross-connection line, which has a cross-connection switch for disconnecting the phase conductor and the further phase conductor. The precharge circuit is arranged between a mains connection of a first phase conductor of the phase conductors and the connection section.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: March 15, 2022
    Assignee: Vitesco Technologies GmbH
    Inventors: Franz Pfeilschifter, Martin Goetzenberger, Klaus Muehlbauer
  • Apparatus and Method for Diagnosing Failure of Bypass Valve
    Publication number: 20220074812
    Abstract: Some embodiments of the teachings herein include an apparatus for diagnosing bypass valve failure in an electric supercharger with a motor and an electric compressor comprising: a bypass valve on a bypass line branching from an intake line with the electric supercharger; and a control unit which assesses the vehicle-state information to determine whether failure criteria of a bypass valve start are satisfied. If the failure criteria are satisfied, the control unit transmits ‘open’ or ‘close’ control instructions to the bypass valve and transmits, to the electric supercharger, a specific rotational-speed target value for determining whether the bypass valve is in the normal open state or the normal closed state, thereby determining whether the bypass valve is subject to stuck-open failure or stuck-closed failure.
    Type: Application
    Filed: October 23, 2019
    Publication date: March 10, 2022
    Applicant: Vitesco Technologies GmbH
    Inventors: JongSuk Lim, HanYong Park, DoWan Kim
  • ANNULAR CATALYTIC CONVERTER
    Publication number: 20220072474
    Abstract: The invention relates to an annular catalytic converter, having a first, tubular flow path, having a diverting region (4) and having a second, annular flow path, wherein the tubular flow path is formed by an inner pipe (1), wherein the annular flow path is formed between the inner pipe (1) and an outer pipe (2) surrounding the inner pipe, and the diverting region (4) is of pot-shaped form for the purposes of diverting the exhaust-gas flow from the tubular flow path into the annular flow path, wherein the inner pipe (1) and/or the outer pipe (2) has a conical cross section (D1, D2, D1, D4) that widens or narrows along the flow direction of the exhaust gas.
    Type: Application
    Filed: November 15, 2021
    Publication date: March 10, 2022
    Applicant: Vitesco Technologies GMBH
    Inventors: Rolf Brück, Peter Hirth, Sven Schepers, David Odenthal, Marat Karibayev, Ferdi Kurth
  • Apparatus and Method for Controlling a Cam
    Publication number: 20220065141
    Abstract: Various embodiments of the teachings herein include a method for controlling a cam using an ECU (electronic control unit) comprising: learning a holding region in which linearity is not ensured by increasing or decreasing a PWM signal while the cam maintains a holding state; based on the results of the learning, generating a final PWM signal; and transmitting the final PWM signal to an oil control valve. The final PWM signal comprises a sum of a minimum PWM signal for the cam to leave the holding region and a control PWM signal for the cam to reach a desired position.
    Type: Application
    Filed: January 2, 2020
    Publication date: March 3, 2022
    Applicant: Vitesco Technologies GmbH
    Inventors: YoungMo Lee, HaMyeong Song, JaeWon Choi
  • Tolerance and wear compensation of a fuel pump
    Patent number: 11261817
    Abstract: A method determines an inflection point OP of a parameter profile i, n which is representative of a component tolerance and a state of wear of a fuel pump. The fuel pump is provided for a fuel supply system for use in a device equipped with an internal combustion engine. The device being a passenger car, utility vehicle and/or a stationary or mobile power generator.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: March 1, 2022
    Assignee: Vitesco Technologies GmbH
    Inventors: Stefan Kleineberg, Mariz Abdelmalek, Marc Völker, Andreas Sausner
  • Anti-reflection device for fuel injection valve and fuel injection valve
    Patent number: 11261834
    Abstract: An anti-reflection device for preventing the reflection of pressure waves inside a fuel injection valve. The anti-reflection device includes an essentially cylindrical base body with a first base side, a second base side, and an outer surface. The anti-reflection device also includes a longitudinal axis orientated parallel to a propagation direction of a pressure wave. The longitudinal axis penetrating the first base side and the second base side. The anti-reflection device also includes a flow path for fuel formed between the first base side and the second base side. The flow path forming a curve around the longitudinal axis.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: March 1, 2022
    Assignee: Vitesco Technologies GMBH
    Inventors: Willibald Schürz, Stefano Filippi, Michael J. Hornby
  • Control module for the temperature control of a battery
    Patent number: 11264656
    Abstract: In order to realize temperature control of a battery in a simplified manner, a control module having a coolant control valve, a coolant temperature sensor and a coolant pump is provided. The coolant control valve, the coolant temperature sensor and the coolant pump are integrally assembled to form the control module.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: March 1, 2022
    Assignee: Vitesco Technologies GmbH
    Inventors: Gerhard Eser, Stefan Klöckner, Silviu Soptica, Christof Schmidt
  • Method of operating a fuel-supply system for an internal combustion engine
    Patent number: 11261819
    Abstract: A method operates a fuel-supply system for an internal combustion engine. The fuel-supply system contains a high-pressure fuel pump, a high-pressure fluid accumulator having a fuel-injection valve, and a high-pressure sensor. A measurement signal of the sensor is representative of a pressure within the high-pressure fluid accumulator. The high-pressure fuel pump is fluidically connected on the outlet side to the high-pressure fluid accumulator. A respective maximum injection quantity of the fuel-injection valve is determined depending on the measurement signal of the high-pressure sensor. The injection quantity is determined depending on an efficiency characteristic representing the efficiency of the high-pressure fuel pump, the efficiency characteristic depending on the measurement signal of the high-pressure sensor.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: March 1, 2022
    Assignee: Vitesco Technologies GmbH
    Inventors: Christoph Klesse, Tobias Ritsch
  • Radial compressor for a charging device of an internal combustion engine, charging device and lamellas for an iris diaphragm mechanism, and method for producing such lamella
    Patent number: 11255252
    Abstract: A radial compressor has an iris diaphragm mechanism for a pressure-charging device of an internal combustion engine. The radial compressor has a bearing assembly, in which a rotor shaft is rotatably mounted, having a compressor impeller arranged in a compressor housing for conjoint rotation on the rotor shaft and having a fresh air supply channel for carrying a fresh air mass flow to the compressor impeller. The iris diaphragm mechanism is upstream of the compressor impeller, allowing variable adjustment of a flow cross section for the fresh air mass flow for admission to the compressor impeller, at least over a partial region. For this purpose, the iris diaphragm mechanism has multiple lamellae which each have a plate style lamella main body and a pin style actuating element as integral constituent parts of the respective lamella.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: February 22, 2022
    Assignee: Vitesco Technologies GmbH
    Inventors: Mathias Bogner, Christoph Schäfer, Sasa Slavic