Patents Assigned to Daimler AG
  • Composite Brake Disc
    Publication number: 20140000995
    Abstract: A composite brake disk for a motor vehicle includes a brake disk chamber and a related brake ring connected together by a joining process. In one joint area an internal brake ring tooth profile engages in a brake disk chamber tooth profile. The brake disk chamber tooth profile has brake disk chamber tooth faces in circular arc form, whereas the brake ring-tooth profile has brake ring tooth faces in the form of an involute. Due to the special version of the pairing of two different tooth formats a fixed, load-bearing connection can be achieved between the brake disk chamber and the brake ring.
    Type: Application
    Filed: December 9, 2011
    Publication date: January 2, 2014
    Applicant: DAIMLER AG
    Inventors: Cornelius Hentrich, Ralph Mayer
  • Vehicle having at least one cooling circuit for cooling a fuel cell system
    Patent number: 8616317
    Abstract: A vehicle includes at least one cooling circuit for cooling a fuel cell system. The cooling circuit includes at least one cooling heat exchanger, a cooling medium transportation device and a heat exchanger in a fuel cell stack of fuel cell system. Cooling heat exchanger is affected by motion-related air flow as cooling air. The cooling heat exchanger is constructed in at least two stages, which are arranged in such a way that they are serially flowed through, one after another, by motion-related airflow.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: December 31, 2013
    Assignee: Daimler AG
    Inventor: Ralf Hoess
  • BRAKE DISC AND PRODUCTION METHOD THEREOF
    Publication number: 20130333989
    Abstract: A method for the production of a brake disc from a basic body (1), which has a friction ring surface (2). The method includes the steps of the provision of the basic body (1) and the roughening of the friction ring surface (2) by directing an electron beam (5) at the friction ring surface (2). A defined quantity of recesses (3) per mm2 of the friction ring surface (2) is created in the friction ring surface (2). The arrangement of the recesses (3) with respect to one another is predetermined and each recess (3) has a predetermined depth and shape. Then a coating (4) is applied to the friction ring surface without the implementation of an chemical etching step. Furthermore, the invention discloses a corresponding brake disc.
    Type: Application
    Filed: December 15, 2011
    Publication date: December 19, 2013
    Applicant: Daimler AG
    Inventor: Ihsan Oezer
  • Motor Vehicle Body With Stiffening Struts
    Publication number: 20130334841
    Abstract: A motor vehicle body includes stiffening struts created from a composite fiber material. Each stiffening strut is connected at both ends to the adjoining body components via a connection section. The fibers of the stiffening strut run essentially unidirectionally in the direction of loading of the stiffening strut and the cross-sectional area of the stiffening strut remains constant at least between the connection sections of the stiffening strut along a length of the stiffening strut.
    Type: Application
    Filed: October 15, 2011
    Publication date: December 19, 2013
    Applicant: Daimler AG
    Inventors: Wilfried Heise, Asmir Salkic
  • INTERNAL COMBUSTION ENGINE
    Publication number: 20130333666
    Abstract: In an internal combustion engine, in particular for a motor car, having a fuel supply for liquid fuel, in particular gasoline, and a fuel supply for gaseous fuel, in particular natural gas, at least one heat exchanger is provided between the two fuel supplies, by means of which a heat exchange is facilitated between the gaseous and the liquid fuels.
    Type: Application
    Filed: February 3, 2013
    Publication date: December 19, 2013
    Applicant: DAIMLER AG
    Inventors: Albert Ebner, Jens Schittenhelm, Dirk Schneider, Helge Wollenhaupt, Klaus Wunderlich
  • RECIPROCATING PISTON ENGINE WITH VARIABLE COMPRESSION RATIO
    Publication number: 20130333670
    Abstract: In a reciprocating piston engine with a variable compression ratio in which a piston is movably disposed in a cylinder, an adjustment arrangement is provided for controlling the compression ratio of the engine including an adjusting part supported by a guide element depending on a signal provided by a detection means comprising a transducer part arranged on the adjusting part and a corresponding detection part, arranged on a housing part of the engine in connection with a control unit in which a desired momentary compression ratio setting is determined on the basis of a characteristic diagram stored in the control unit.
    Type: Application
    Filed: January 25, 2013
    Publication date: December 19, 2013
    Applicant: DAIMLER AG
    Inventors: Marc Wodischek, Simone Nowak, Bernd-Heinrich Schmitfranz, Tilmann Römheld, Michael Wagenplast, Dieter Nowak
  • Method for Heating an Interior of a Motor Vehicle
    Publication number: 20130334329
    Abstract: A method for heating an interior of a motor vehicle having a fuel cell, a climate measuring device by which a climate parameter of the interior of the motor vehicle is measured, and a heat transfer device for transferring heat that is generated by the fuel cell to the interior of the motor vehicle. At least one operating parameter of the fuel cell is set also as a function of the climate parameter of the interior of the motor vehicle so that the rate of the heat that is generated by the fuel cell depends on the operating parameter.
    Type: Application
    Filed: November 17, 2011
    Publication date: December 19, 2013
    Applicant: Daimler AG
    Inventors: Matthias Lederbogen, Gerald Post
  • Floor Module for a Motor Vehicle with a Variable Driving Concept
    Publication number: 20130334839
    Abstract: A floor module for a motor vehicle includes a floor shell, which can be fastened to a shell of the motor vehicle, and equipment with a plurality of variant-specific constructional units arranged on the floor shell. A method for assembling a floor module involves equipping a respective shell of the motor vehicle with a floor module with corresponding chassis and drive train.
    Type: Application
    Filed: October 27, 2011
    Publication date: December 19, 2013
    Applicant: Daimler AG
    Inventors: Christoph Grevener, Uwe Habisreitinger, Andreas Krevet, Matthias Mueller, Thomas Stark, Konrad Wirth, Michael Zuern
  • METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE
    Publication number: 20130333661
    Abstract: In a method for operating an internal combustion engine with a plurality of combustion chambers, wherein a discrepancy between an actual operating performance and a target operating performance of at least one of the combustion chambers is detected, the ignition point is shifted in only the combustion chamber that has the discrepancy in order to influence combustion so as to compensate for the discrepancy.
    Type: Application
    Filed: March 3, 2013
    Publication date: December 19, 2013
    Applicant: DAIMLER AG
    Inventor: Juergen Fischer
  • Device and Method for Regulating an Internal Combustion Engine
    Publication number: 20130338907
    Abstract: A method for the adaptive lambda control of an internal combustion engine involves a controller limiting lambda control by a maximum control stroke. A lambda variable is a controlled variable, a metering variable of a metering device is a manipulated variable, and a lambda setpoint variable is a setpoint variable. In addition, an adapter carries out a lambda adaptation, which is limited by a maximum adaptation speed. A control speed of the lambda control is greater than the maximum adaptation speed. The maximum control stroke and/or the maximum adaptation speed is/are a function of a deviation of the lambda variable from the lambda setpoint value.
    Type: Application
    Filed: December 6, 2011
    Publication date: December 19, 2013
    Applicant: Daimler AG
    Inventor: Tobias Erbes
  • Actuation system for a drive unit of a motor vehicle
    Patent number: 8608614
    Abstract: An actuation system for a drive unit of a motor vehicle includes a control unit which is assigned to the drive unit and which has a function level, a function monitoring level, and having a power output stage for actuating the drive unit or actuators or sensors which are assigned to the drive unit. To relieve the function a data transmission device for outputting data to a data bus is arranged in the function monitoring level. The data transmission device can output a drive setpoint torque to the drive unit, to actuators or sensors which are assigned to it, or to a power output stage (9, 9?) of a separate, second drive unit.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: December 17, 2013
    Assignee: Daimler AG
    Inventors: Detlef Fuchs, Lothar Rehm, Thomas Von Raumer
  • Exhaust gas purification system for an internal combustion engine
    Patent number: 8608835
    Abstract: An exhaust gas purification system for an internal combustion engine of a motor vehicle is provided. The system includes a first particulate filter element and a second particulate filter element, which is connected downstream of the first particulate filter element and through which flows the exhaust gas that emanates from the first particulate filter element. The first particulate filter element operates as a system filter and the second particulate filter element operates as a diagnostic filter. A charge of the diagnostic filter can be determined, and the functional capability of the system filter can be deduced based thereon.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: December 17, 2013
    Assignee: Daimler AG
    Inventor: Michael-Rainer Busch
  • WASTE HEAT UTILIZATION DEVICE AND OPERATING METHOD
    Publication number: 20130327041
    Abstract: In a waste heat utilization arrangement for an internal combustion engine of a motor vehicle including a waste heat utilization circuit in which a working medium is circulated, a pumping device for pressurizing the working medium, an evaporator for vaporizing the working medium by waste heat of the internal combustion engine, an expansion machine for expanding the working medium while extracting mechanical energy therefrom and a condenser for condensing the working medium in a resting state, the waste heat utilization circuit is in communication with a pressure store capable of maintaining a pressure for setting and ensuring a predetermined adjustable minimum pressure of the working medium in the waste heat utilization circuit.
    Type: Application
    Filed: June 15, 2013
    Publication date: December 12, 2013
    Applicant: DAIMLER AG
    Inventors: Jan Gaertner, Thomas Koch
  • INSERT ELEMENT FOR A TURBINE OF AN EXHAUST GAS TURBOCHERGER, EXHAUST GAS TURBOCHARGER AND TURBINE FOR AN EXHAUST GAS TURBOCHARGER
    Publication number: 20130330178
    Abstract: In a turbine of an exhaust gas turbocharger an insert element which is provided for insertion into a turbine housing has a spiral port which extends in the circumferential direction of the insert element over at least part of the circumference thereof and by which the exhaust gas flow through the turbine is controlled. The insert element is open in the axial direction on at least at one end face thereof which end face is biased in sealing contact with the turbine housing. The insert element has a central axial opening with a spiral port for accommodating a turbine wheel.
    Type: Application
    Filed: May 13, 2013
    Publication date: December 12, 2013
    Applicant: DAIMLER AG
    Inventors: Torsten Hirth, Benjamin Schaal, Siegfried Sumser
  • METHOD OF OPERATING AN INTERNAL COMBUSTION ENGINE WITH LOW NOx COMBUSTION
    Publication number: 20130327293
    Abstract: An operating mode for an internal combustion engine, in particular a directly injected internal combustion engine featuring a plurality of combustion chambers, in particular for a direct-injection gasoline engine, for example in a motor vehicle, an operating mode having at least in part low-NOx combustion (NAV) and having a plurality of partial operating modes whereby it is switched between a RZV partial operating mode having pure controlled auto-ignition (RZV) and a NAV partial operating mode, whereby in the case of said NAV partial operating mode, at an ignition point (ZZP) a largely homogeneous, lean fuel/exhaust gas/air mixture in the respective combustion chamber having a combustion air ratio of ??1 is spark ignited by means of an ignition device, where the flame front combustion (FFV) initiated by the spark-ignition transitions to a controlled auto-ignition (RZV).
    Type: Application
    Filed: April 6, 2013
    Publication date: December 12, 2013
    Applicant: DAIMLER AG
    Inventor: DAIMLER AG
  • TURBINE FOR AN EXHAUST GAS TURBOCHARGER
    Publication number: 20130327038
    Abstract: In a turbine for an exhaust gas turbocharger of an internal combustion engine having a housing part with accommodation space including a turbine wheel and at least one spiral channel via which exhaust gas of the internal combustion engine may flow. The spiral channel has an outlet cross-section via which the turbine wheel accommodated in the accommodation space may be acted on by the exhaust gas, and has at least one blocking member, which is connected to an adjusting part so as to be movable hereby in the peripheral direction of the accommodation space for adjusting the outlet cross-section (AR, AR?, AR,RGR). A bypass duct is provided, via, which exhaust gas can bypass the turbine wheel and whose flow cross-section is also adjustable by the blocking member moved the adjusting part.
    Type: Application
    Filed: June 2, 2013
    Publication date: December 12, 2013
    Applicant: DAIMLER AG
    Inventors: Siegfried Sumser, Torsten Hirth, Slefgried Weber
  • MOTOR VEHICLE DRIVE TRAIN DEVICE
    Publication number: 20130327169
    Abstract: In a motor vehicle drive train device with a transmission output shaft, a main drive train driven by the transmission output shaft, which has an axle drive for driving a main drive axle, an auxiliary drive train driven by the transmission output shaft, which has an axle drive for driving an auxiliary drive axle, a clutch unit for the switchable connection of the axle drive to the transmission output shaft, the axle drive of the main drive train and the axle drive of the auxiliary drive train have different transmission ratios and a transmission gearing for adapting a drive transmission ratio of the auxiliary drive train to a drive transmission ratio of the main drive train is provided.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 12, 2013
    Applicant: DAIMLER AG
    Inventor: Christian Krajewski
  • Metering Arrangement and Method for Operating a Metering Arrangement
    Publication number: 20130327407
    Abstract: A method and arrangement for controlling heating and thawing of a metering arrangement with a metering device for the feeding of a reducing agent solution for the exhaust gas after treatment in an exhaust system. The metering device is connected with a supply container for the reducing agent solution via at least one pipe. At least one heating device is provided for the heating of at least one component of the metering arrangement. At least one first component of the metering arrangement is assigned a first heating device, which can be operated separately from a second heating device provided for the heating of at least a second component of the metering arrangement.
    Type: Application
    Filed: December 1, 2011
    Publication date: December 12, 2013
    Applicant: Daimler AG
    Inventors: Thomas Hermann, Dan Keilhoff
  • Method and device for automatically operating a vehicle in an autonomous driving mode requiring no user action
    Patent number: 8606455
    Abstract: A method for the automatic operation of a vehicle in an autonomous driving mode not requiring user action is provided. This involves detection of a present traffic situation, a check whether the traffic situation fulfills a first criterion, and a blocking of a functionality which offers to a driver during the autonomous driving mode a secondary activity not related to driving the vehicle if the first criterion is fulfilled. A device for the automatic operation of a vehicle in an autonomous driving mode not requiring user action includes devices designed for carrying out the method for the automatic operation of a vehicle in an autonomous driving mode not requiring user action.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: December 10, 2013
    Assignee: Daimler AG
    Inventors: Michael Boehringer, Stefanie Dubiella-Zimmermann, Stefan Jansen, Julie Lockhart, Erik Sengewald, Fabian Stiebert
  • Valve operating device
    Patent number: 8601990
    Abstract: In a valve operating device for an internal combustion engine with at least one actuating device which is provided to adjust an axially displaceable cam element by means of at least one slotted guide track, the valve operating device comprises a safety unit for moving the axially displaceable cam element in at least one operating mode into a defined basic safety position.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: December 10, 2013
    Assignee: Daimler AG
    Inventors: Jens Meintschel, Thomas Stolk, Alexander von Gaisberg-Helfenberg