Patents Assigned to CPT GROUP GMBH
  • Patent number: 11183926
    Abstract: A DC-DC converter includes an output-side storage capacitor arrangement which has a parallel circuit formed of an electrolytic capacitor, a ceramic capacitor and a circuit arrangement. The circuit arrangement has a series circuit formed of a hybrid electrolytic capacitor and a suppressor diode as well as a resistance connected in parallel with the hybrid electrolytic capacitor.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: November 23, 2021
    Assignee: CPT Group GmbH
    Inventor: Anton Mayer-Dick
  • Patent number: 11173799
    Abstract: A method for guiding a motor vehicle into a charging position at an inductive charging station. When the charging position is being approached, a control device of the motor vehicle determines a relative position of the motor vehicle with respect to the charging position at least up to a first distance from the charging station by way of a first location-determining device and, starting from a second distance from the charging station up to the charging position by way of a second location-determining device. The control device estimates the relative position at least in a transition region between the first distance and the second distance on the basis of the motor vehicle's own movement, by way of an odometry device.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: November 16, 2021
    Assignee: CPT Group GmbH
    Inventors: Stephan Bartz, Thomas Roehrl
  • Publication number: 20210310453
    Abstract: Various embodiments include a fuel injection assembly comprising: a fuel injector; an injector cup comprising a cylindrical body with a cavity at the lower end to receive a fuel inlet port of the injector; a holding element for securing the injector to the cup; a spring clip; and a first opening formed in a peripheral wall of the cup for receiving the holding element. The holding element comprises a U-shaped body with two parallel arms engaging opposite sides of an annular groove in the injector to secure the injector in the cup. When inserted in the cup, the free ends of the two arms project from the cup, and include adjacent the free ends a retention arrangement engageable by the spring clip. The spring clip comprises a depending leg engageable in a corresponding receiving part on the injector to locate the angular position of the injector relative to the cup.
    Type: Application
    Filed: September 28, 2017
    Publication date: October 7, 2021
    Applicant: CPT Group GmbH
    Inventors: Marco Pasquali, Andrea Puccini
  • Publication number: 20210293194
    Abstract: Various embodiments include a method for operating a fuel injector having a hydraulic stop comprising: applying a first current profile to a solenoid drive to inject a predetermined injection quantity; ascertaining a first value of a parameter correlating to a velocity of the armature when reaching the hydraulic stop; determining whether the first value of the parameter is greater than a first threshold value; and if the first value of the parameter is greater than the first threshold value, applying a second current profile to the solenoid drive to carry out a second injection procedure. The second current profile in comparison with the first current profile exerts a lower magnetic force in the direction of the pole piece on the armature.
    Type: Application
    Filed: September 18, 2017
    Publication date: September 23, 2021
    Applicant: CPT Group GmbH
    Inventors: Markus Stutika, Gerd Rösel
  • Publication number: 20210285410
    Abstract: Various embodiments include methods for operating a high-pressure pump comprising: driving a piston arranged in a compression chamber with a motor shaft; during movement of the piston toward the top dead center, closing the inlet valve so the fluid is then delivered by the piston through an outlet valve; applying a coil current to an electromagnet used to close the inlet valve during and/or after overshooting the top dead center; detecting a start time at which the coil current, on account of starting of an opening movement of the inlet valve, fulfills a predetermined change criterion; labelling a dead center rotation position of the motor shaft at which the piston is at the top dead center based at least in part on the ascertained start time; and adjusting operation of the pump based on the identified dead center rotation position.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 16, 2021
    Applicant: CPT Group GmbH
    Inventors: Tet Kong Brian Chia, Dmitriy Kogan
  • Publication number: 20210285350
    Abstract: Various embodiments include a catalyst measuring system for determining the aging of an SCR catalytic converter, the system comprising: a control device with a processor; an SCR catalytic converter for treating the exhaust gases of a vehicle; a high-frequency sensor for measuring a level of ammonia loading of the SCR catalytic converter; and an ammonia dosing system for injecting ammonia into an exhaust system of the vehicle. The control device instructs the ammonia dosing system to inject ammonia selectively into the exhaust system. The control device compares data measured by the high-frequency sensor with a predefined threshold value to determine the aging of the SCR catalytic converter.
    Type: Application
    Filed: September 26, 2017
    Publication date: September 16, 2021
    Applicant: CPT Group GmbH
    Inventors: Ralf Moos, Willibald Reitmeier, Markus Dietrich, Denny Schädlich, Markus Hein, Katharina Burger, Gunter Hagen
  • Publication number: 20210280845
    Abstract: Various embodiments include a method for producing a galvanic lithium-ion cell comprising: separating a first electrode material from a second electrode material using a separator; and applying the first electrode material to a first side of the separator by coating.
    Type: Application
    Filed: October 5, 2017
    Publication date: September 9, 2021
    Applicant: CPT Group GmbH
    Inventors: Udo Kreißig, Andreas Lenk, Uwe Scharf, Rene Möller, Rene Böhm, Jana Fuchs, Daniel Haase
  • Patent number: 11111819
    Abstract: Bearing bushings which are exposed to highly elevated temperatures during operation, corresponding high-temperature-resistant bearing bushings and exhaust-gas turbochargers having at least one such bearing bushing, include an iron material having a material composition which, apart from iron, has at least carbon, silicon, manganese, nickel, chromium, molybdenum and tungsten alloy constituents in certain amounts. This material composition ensures sufficient temperature resistance and self-lubricating properties with simultaneously good machining properties and a moderate price.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: September 7, 2021
    Assignee: CPT Group GmbH
    Inventors: Martin Thomas, Guenter Muench, Alexander Waas
  • Patent number: 10883418
    Abstract: A turbocharger for an internal combustion engine has a bearing housing, in which a rotor shaft is mounted in a rotatable manner. A compressor having a compressor wheel is arranged for conjoint rotation on the rotor shaft. A fresh air supply channel conducts a fresh air mass flow to the compressor wheel. The fresh air supply channel has a first flow cross section upstream of the compressor wheel. A flow control device is provided and is adjustable between an open position, in which the first flow cross section is opened up, and a closed position, in which the first flow cross section is reduced to a second flow cross section. The flow control device is fluidically coupled to a compressor channel of the compressor downstream of the compressor wheel, such that the flow control device is adjusted in a manner dependent on a pressure prevailing in the compressor channel.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: January 5, 2021
    Assignee: CPT Group GmbH
    Inventor: Marc Hiller
  • Patent number: 10842032
    Abstract: A combination of a plug and a cover. The plug has a plug housing and a plug longitudinal edge which extends along a plug longitudinal direction and on which at least one insertion receptacle is arranged which borders a receiving opening. The cover has a cover longitudinal edge in the cover longitudinal direction and on which at least one insertion element for insertion into the receiving opening is arranged. The insertion element has a shaft and at least one holding projection which proceeds from the shaft. The insertion receptacle has two wall regions which delimit the receiving opening on two opposite sides. In a non-assembled state of the plug and the cover, in at least one perpendicular cross-sectional plane, an opening width between the two wall regions is smaller than a width of the insertion element in a cross-sectional plane which is perpendicular in relation to the element plug-in direction.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: November 17, 2020
    Assignee: CPT Group GmbH
    Inventor: Martin Reichert
  • Patent number: 10746092
    Abstract: A bypass valve for an exhaust-gas turbocharger has a valve flap seat formed at one end of a bypass duct and a valve flap. The valve flap has, at the outer edge of the its closing surface, a flap skirt which, in the closed state of the bypass valve, extends from the closing surface predominantly in the direction of the valve seat axis beyond the valve flap seat and at least over a part of the valve flap outer circumference, such that the flap skirt at least partially surrounds the valve seat outer circumference of the valve flap seat and, in an overlap region, engages over the valve flap seat by the skirt height.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: August 18, 2020
    Assignee: CPT Group GmbH
    Inventor: Mark Paulov
  • Patent number: 10748835
    Abstract: A cooling device includes an aluminum heat sink and at least one nickel sheet segment. The nickel sheet segment is connected to the aluminum heat sink by a solder layer. The cooling device includes a securing surface for securing and for heat absorption. The securing surface being formed by that side of the nickel sheet segment which faces away from aluminum heat sink. The aluminum heat sink is formed from a plurality of aluminum sheets which are stacked one above another and are connected to one another. At least one aluminum sheet includes cutouts which form a cooling channel covered by at least one of the aluminum sheets. Furthermore, a method for producing a cooling device and also a power circuit comprising a heat sink as described here are presented.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: August 18, 2020
    Assignee: CPT Group GmbH
    Inventors: Arnoud Smit, Thomas Schmid, Lars Keller, Soeren Rittstieg
  • Patent number: 10681801
    Abstract: A mounting assembly includes an electronic component mounted on an upper surface of a circuit board and having at least one electrical connector and a thermal pad provided on a lower surface of the component. The circuit board is mounted on a heatsink and provided with an opening beneath the thermal pad of the component. The heatsink has a heatsink extension which extends through the circuit board and is spatially separated therefrom. A thermal interface material is provided to ensure an electrically insulating thermal connection between the thermal pad and the heatsink extension.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: June 9, 2020
    Assignee: CPT Group GmbH
    Inventor: Aurelian Kotlar
  • Publication number: 20200173863
    Abstract: A thermocouple arrangement comprising: a first thermocouple including a first thermoelement and a second thermoelement coupled at a first junction, the first junction subject to a first temperature, the second material different from the first material; a second thermocouple including a third thermoelement and a fourth thermoelement coupled to the third thermoelement at a second junction connected to the first thermoelement, the second junction arranged at a second portion subject to a second temperature, the fourth material different from the third material; and a third thermocouple including a fifth thermoelement and a sixth thermoelement coupled to the fifth thermoelement at a third junction connected to the second thermoelement, the third junction arranged at the second portion exposed to the second temperature, the fifth material different from the third material and the fourth material, the sixth material different from the third material, the fourth material, and the fifth material.
    Type: Application
    Filed: May 3, 2018
    Publication date: June 4, 2020
    Applicant: CPT Group GmbH
    Inventor: Tomás Gajdarus
  • Publication number: 20200099268
    Abstract: Various embodiments include a guide ring for connection to a housing of an electric machine comprising: a main body having a ring element; a plurality of busbars; and a plurality of pressure elements. The busbars are overmolded by the main body. Each of the plurality of pressure elements projects from an outer circumferential surface of the main body and to frictionally connect the guide ring to an inner receiving surface of the housing.
    Type: Application
    Filed: November 27, 2017
    Publication date: March 26, 2020
    Applicant: CPT Group GmbH
    Inventors: Swen Wiethoff, Zoran Dmitrasinovic
  • Publication number: 20200094833
    Abstract: Various embodiments include a method for controlling a motor vehicle having an internal combustion engine with a crankshaft and a drivetrain separable from the internal combustion engine using a releasable clutch comprising: propelling the vehicle in a first operating state in a predetermined range around a speed while the internal combustion engine is off and is separated from the drivetrain by the releasable clutch; sensing a braking operation while in the first operating state; predicting whether a power demand is expected within a predetermined time interval; and, if the power demand is expected, setting the crankshaft of the internal combustion engine in rotation, or increasing a rotational speed of the crankshaft in preparation for an engine restart.
    Type: Application
    Filed: December 20, 2017
    Publication date: March 26, 2020
    Applicant: CPT Group GmbH
    Inventors: Helmut Hamperl, Lisa Wankerl
  • Publication number: 20200063667
    Abstract: Various embodiments include a method for determining the temperature of an engine oil in an internal combustion engine comprising: acquiring a value of a parameter characterizing a current operating point of the internal combustion engine; and calculating the temperature of the engine oil using an oil temperature model. The oil temperature model depends at least in part on dilution of the engine oil caused by different components in the engine oil and accounts for modified heating behavior of the engine oil based on the dilution.
    Type: Application
    Filed: October 25, 2017
    Publication date: February 27, 2020
    Applicant: CPT Group GmbH
    Inventors: Jan-Richard LENK, Sebastian VIEHÖVER
  • Publication number: 20200063674
    Abstract: Various embodiments include a method for detecting deviations occurring in the valve drive of an internal combustion engine comprising: measuring dynamic pressure oscillations of intake air in an air intake tract of respective internal combustion engine during operation; calculating an inlet valve stroke phase difference and/or an outlet valve stroke phase difference based on the measured dynamic pressure oscillation; calculating a valve stroke phase deviation value with respect to a valve stroke phase reference value based on the calculated phase difference; and calculating a first valve drive deviation value based on the valve stroke phase deviation value.
    Type: Application
    Filed: October 9, 2017
    Publication date: February 27, 2020
    Applicant: CPT Group GmbH
    Inventors: Tobias Braun, Matthias Delp, Frank Maurer
  • Publication number: 20200049092
    Abstract: Various embodiments include a method for operating a fuel injector with a solenoid drive having a hydraulic stop at a predetermined fuel pressure comprising: applying a first current profile to the solenoid including a first holding current value prespecifying the current flowing during a holding phase; determining a resulting first flux; determining a first force based on the first flux corresponding to a hydraulic force exerted on the armature by fuel; determining a deviation between the first force and an optimal force corresponding to the predetermined fuel pressure; determining a second holding current based on the first holding current and the determined deviation; and applying a second current profile to carry out a second injection process using the second holding current value to apply a hydraulic force on the armature by the fuel adapted to the optimal force value.
    Type: Application
    Filed: September 27, 2017
    Publication date: February 13, 2020
    Applicant: CPT Group GmbH
    Inventors: Markus Stutika, Gerd Rösel
  • Publication number: 20200040835
    Abstract: Various embodiments include a method for checking a calibration of a pressure sensor comprising: moving a piston toward a TDC in successive cycles; while the piston moves toward TDC, closing an inlet valve thereby adjusting a setpoint value of a fluid pressure; measuring the fluid pressure with the pressure sensor arranged downstream of the outlet valve; applying a measurement current to the electromagnet when the inlet valve is closed; while the piston moves away from TDC, detecting an opening position of the inlet valve on the basis of a predetermined change with respect to time of the measurement current at which an opening movement of the inlet valve begins; over multiple pump cycles, changing the setpoint value of the fluid pressure by a predetermined difference; checking whether the change in opening position satisfies a predetermined correspondence criterion; and if the criterion is met, generating a fault signal.
    Type: Application
    Filed: May 10, 2017
    Publication date: February 6, 2020
    Applicant: CPT Group GmbH
    Inventors: Tet Kong Brian Chia, Dmitriy Kogan