Patents Assigned to Daimler
  • System and method for controlling oil temperature of an internal combustion engine in a motor vehicle
    Patent number: 7810457
    Abstract: A system and method for controlling the temperature of the engine oil of an internal combustion engine of a motor vehicle are provided. The system includes an engine oil circuit for controlling the temperature of the engine oil, which engine oil circuit includes the internal combustion engine and a coolant/engine-oil heat exchanger; and a coolant circuit for controlling the temperature of the internal combustion engine, which coolant circuit in a main branch, includes the internal combustion engine, a coolant cooler and a first coolant pump and, in an auxiliary branch downstream of the coolant cooler, includes the coolant/engine-oil heat exchanger and a second coolant pump. The heat of the engine oil can thereby be dissipated via the coolant/engine-oil heat exchanger to the coolant and further via the coolant cooler to the environment.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: October 12, 2010
    Assignee: Daimler AG
    Inventors: Timo Blassnitz, Oliver Wiech
  • PEM fuel cell with charging chamber
    Patent number: 7811719
    Abstract: Proposed is a PEM fuel cell that comprises a separator plate assembly with a charging chamber, which is partitioned off by a partition wall and via charging spots has a fluid connection to an adjoining cathode chamber. The partition wall is designed so that the depths of the charging channels in the charging chamber and the depths of the distribution channels in the adjoining cathode chambers change in such a way that the quantity of oxidant that is charged at a charging spot from the charging chamber into the cathode chamber can be fixed in advance. As a result, the charging of oxidant, which has not been humidified or only slightly, into the cathode chamber can be improved with regard to the curve of the relative humidity along the cathode. Also proposed is a method for manufacturing a separator plate assembly suitable for a PEM fuel cell.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: October 12, 2010
    Assignee: Daimler AG
    Inventors: Felix Blank, Thomas Kunick
  • Fuel Cell System and Method of Operating a Fuel Cell System
    Publication number: 20100255388
    Abstract: In a fuel cell system a specific connection and a valve arrangement make it possible for a compressor to supply precompressed air to a fuel cell stack via a waste gas line, said air then leaving the fuel cell stack via a line which is otherwise an air feed line. In this way, a humidifier may be bypassed. This is sensible in particular during a start phase at low ambient temperatures, during which the fuel cell system is intended to warm up without moisture in the fuel cell stack having a negative effect, for instance by freezing. The compressor may be operated both in the start phase or stop phase and during conventional operation by the same mode of operation.
    Type: Application
    Filed: November 7, 2008
    Publication date: October 7, 2010
    Applicants: DAIMLER AG, FORD GLOBAL TECHNOLOGIES LLC
    Inventor: Hans-Joerg Heidrich
  • Method and Device for Calibrating a Position Sensor Placed on a Shaft of a Permanent Magnet Synchronous Motor
    Publication number: 20100253258
    Abstract: In a method and apparatus for calibrating a position sensor mounted on the shaft of a permanent magnet synchronous motor, to control the position of a rotor of the permanent magnet synchronous motor relative to a magnetic field produced by a stator of the permanent magnet synchronous motor, a DC test current is supplied to stator windings of the permanent magnet synchronous motor to generate a definite magnetic field. The motor speed caused by the DC test current is adjusted to zero by modifying the rotor position; and the position measured by the position sensor at zero motor speed relative to the magnetic field is used to calibrate the position sensor.
    Type: Application
    Filed: April 2, 2009
    Publication date: October 7, 2010
    Applicant: Daimler AG
    Inventors: Radomir Fabis, Marcus Heller
  • METHOD FOR PRODUCING A FIBER COMPOSITE HOLLOW BODY HAVING A FIBER ORIENTATION OPTIMIZED FOR FORCE FLOW AND TENSION
    Publication number: 20100255235
    Abstract: A method for producing a fiber composite hollow body, particularly a hollow fiber composite component for a motor vehicle. The hollow body is produced by a) applying and fixing continuous reinforcement fibers to a form corresponding to the later shape of the hollow body, wherein the arrangement of the fiber material with regard to the fiber composite hollow body takes place so as to optimize force flow and tension along a pre-defined load path, b) impregnating the reinforcement fibers with a curable resin, c) curing the applied resin to form a fiber composite component, and d) dissolving, melting, or removing the lost form to form the fiber composite hollow body. The lost form has a complex geometry. The fibers, which may be impregnated, are placed tightly onto the surface of the lost form, completely forming the surface contour.
    Type: Application
    Filed: September 9, 2008
    Publication date: October 7, 2010
    Applicant: DAIMLER AG
    Inventors: Karl-Heinz Ilzhoefer, Asmir Salkic
  • Method for Controlling an Output Torque of an Electric Variable Transmission by Battery Power Management
    Publication number: 20100252344
    Abstract: In a method for controlling an output torque of an electric variable transmission having an input coupled to a combustion engine and at least one electric motor that is at least feedable by a battery and able to recuperate energy into the battery, the battery power is limited to a maximum continuous battery power when the transmission is in a stationary operating point with a continuous revolution speed. The battery power is increased and limited to a maximum transient battery power that is greater than the maximum continuous battery power in a non-stationary operating point, upon a request for changing the gear-ratio (ratio between transmission input and output-speed) or upon a request for changing the transmissions output revolution speed.
    Type: Application
    Filed: April 2, 2009
    Publication date: October 7, 2010
    Applicant: Daimler AG
    Inventors: Claus GIERAY, Birgit LOSCHKO
  • Drive train
    Patent number: 7806800
    Abstract: In a drive train and a method for operating the drive train for a motor vehicle, comprising a hydraulically shiftable transmission unit with an input shaft connectable to an internal combustion engine via a first clutch, a first electric motor, and an oil pump which supplies the transmission unit with pressurized oil and which is driven by the internal combustion engine or by an electric pump motor, the electric pump motor for driving the oil pump is in the form of a sensorless electric motor, and if required, the first electric motor is energized and coupled to the oil pump in order to assist starting the electric pump motor.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: October 5, 2010
    Assignee: Daimler AG
    Inventors: Norbert Ebner, Andreas Schondelmaier
  • TANDEM AXLE HAVING TWO DRIVABLE AXLES AND A DRIVETRAIN WHICH CAN BE PARTIALLY DISCONNECTED
    Publication number: 20100248888
    Abstract: A tandem axle having two drivable axles, each axle including a differential gearing with a drive input gearwheel, drivable by a shaft, as a differential gearing input and with two drive input semi-axles driving the wheels of the axle using axle shaft wheels. The wheels of the first axle are permanently positively coupled to the drive input gearwheel of the axle. An activatable distributor wheel is seated on a drive input shaft of the drive input gearwheel of the first axle. The distributor wheel meshes with a through drive shaft wheel which is arranged in a rotationally rigid fashion on a through drive shaft. The output of the through drive shaft is coupled to the input-side drive input gearwheel of the second axle by means of intermediate members. Switchable clutches are arranged in the second axle between the axle shaft wheels and their adjacent wheels.
    Type: Application
    Filed: August 1, 2007
    Publication date: September 30, 2010
    Applicant: Daimler AG
    Inventors: Johann Hamperl, Michael Helfrich, Uwe Mierisch, Ferdinand Mulzer
  • SEAT SYSTEM FOR THE INTERIOR OF A MOTOR VEHICLE
    Publication number: 20100244512
    Abstract: A seat system for the interior of a motor vehicle, such as a driver's cab of a truck, has a vehicle seat that is movable from a home position, set on a seat support on the vehicle, into at least one further position. The vehicle seat is separable from the seat support and has a roller element device by which the vehicle seat can be moved into a position separated from the seat support. The seat support can include at least one coupling element for a connection line, with the coupling element being connectable to a coupling element on the vehicle seat.
    Type: Application
    Filed: March 24, 2009
    Publication date: September 30, 2010
    Applicant: Daimler AG
    Inventors: Ryan DICKMAN, Mark Hurayt, Holger Schleife, Kai Sieber, Justin Yee
  • Camshaft adjusting device
    Patent number: 7802548
    Abstract: In a camshaft adjusting device for adjusting a phase position of a camshaft, including a rotary actuator having a stator and at least one axially displaceable rotor and including a gear mechanism which is arranged operatively between two of at least three shafts, one of the shafts being a control shaft which is acted upon by the rotary actuator, one of the shafts being a drive shaft which is connected to the crankshaft, and one of the shafts being an output shaft which is connected to the camshaft, a compact locking structure is provided whereby at least two of the at least three shafts can be locked to one another in a rotationally fixed manner by a spring depending on operating conditions and released by an auxiliary coil which, upon energization, provides for axial movement of the rotor out of its locked position to permit adjustment thereof.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: September 28, 2010
    Assignee: Daimler AG
    Inventors: Matthias Gregor, Jens Meintschel, Tilmann R{hacek over (o)}mheld, Petra Schulz, Thomas Stolk, Alexander von Gaisberg-Helfenberg
  • MULTI-FUNCTION SENSOR SYSTEM FOR DETECTING RAINFALL AND FOR RECORDING THE SURROUNDINGS OF VEHICLES
    Publication number: 20100241321
    Abstract: A sensor system and method for detecting particles, in particular dirt particles or water droplets on a vehicle windscreen, comprising an optical sensor (3). The sensor (3) operates on the basis of light transit time and receives light signals (S) that are emitted by an emitter element and that are at least partially reflected, wherein the emitter element and the sensor (3) are located and aligned on the exterior of the vehicle, on or in the vicinity of a tail gate tailgate, hatchback or trunk lid (2) of said vehicle (1) in such a way that particles on the tailgate, hatchback or trunk lid (2) can be detected by means of the sensor (3) by sensing the part of light signals (S) emitted by the emitter element that is backscattered by the particles.
    Type: Application
    Filed: September 23, 2008
    Publication date: September 23, 2010
    Applicant: DAIMLER AG
    Inventors: Juergen Luka, Axel Mueller
  • Unit for a Fuel Cell System, and a Fuel Cell System
    Publication number: 20100239956
    Abstract: A flow unit such as may be provided as a recirculation device for an anode circuit of a fuel cell system has at least one moving element by which a two-phase flow with a liquid phase can be conveyed. At least one separator is arranged in or adjacent to the unit.
    Type: Application
    Filed: May 28, 2008
    Publication date: September 23, 2010
    Applicants: DAIMLER AG, FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Andreas Knoop, Dietmar Mirsch, Hans-Joerg Schabel
  • Method and Apparatus for Warning Following Vehicles of Frontally Escalating Longitudinal Traffic
    Publication number: 20100241311
    Abstract: A method and a device for warning following vehicles in a group of several sequential vehicles, including at least a leading vehicle, a middle vehicle and a following vehicle, wherein a warning is transmitted from the middle vehicle to the following vehicle. A total distance and a total relative speed between the leading vehicle and the following vehicle are calculated based on measurements made by the middle vehicle. The total distance and total relative speed are used to determine whether a critical approach of the following vehicle to the leading vehicle is occurring, and if so, an automatic warning is transmitted from the middle vehicle to the following vehicle.
    Type: Application
    Filed: September 3, 2008
    Publication date: September 23, 2010
    Applicant: Daimler AG
    Inventors: Karl-Heinz Baumann, Michael Fehring, Rainer Justen
  • Transmission with a countershaft which can be idled in direct gear
    Patent number: 7798937
    Abstract: In a utility vehicle transmission having an input shaft, a main shaft and an output shaft, a countershaft is provided which can be decoupled in direct gear, a high number of gears wherein power is transmitted from the input shaft to the output shaft directly via the main shaft while providing for a high number of gears by two shiftable input constants with different transmission ratios which are selectively engageable with either of the various forward transmission stages and the reverse transmission stage but which also permit the return flow of power from the input shaft to the main shaft via the input constants.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: September 21, 2010
    Assignee: Daimler AG
    Inventor: Carsten Gitt
  • Turbine wheel in an exhaust gas turbine of an exhaust gas turbocharger
    Patent number: 7798770
    Abstract: In a turbine wheel of an exhaust gas turbine comprising a turbine wheel with a hub and a plurality of turbine wheel blades which are arranged on the turbine wheel hub and which extend axially between a turbine wheel inlet and a turbine wheel outlet, the turbine wheel blades are constructed in such a way that the ratio of the hub contour thickness to the external contour thickness of each turbine wheel blade follows a defined function.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: September 21, 2010
    Assignee: Daimler AG
    Inventors: Siegfried Sumser, Wolfram Schmid
  • Twin clutch transmission design with selective hybrid power transfer compatibility
    Patent number: 7798030
    Abstract: In to a modular transmission design for twin-clutch transmissions which are alternatively equipped with, or without, hybrid functionality in particular for use in connection with front-wheel drive motor vehicles, the transmission is designed to optionally accommodate the components providing the hybrid capability.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: September 21, 2010
    Assignee: Daimler A.G.
    Inventors: Jügen Lang, Heinrich Straub
  • Cooling system, particularly for a motor vehicle, and method for cooling a heat source
    Patent number: 7797954
    Abstract: In a cooling system, particularly a cooling system for motor vehicles, including a cooling circuit and a refrigerating circuit which are coupled to one another via a refrigerant/coolant heat exchanger and a third medium/coolant heat exchanger arranged in the cooling circuit, a heat source to be cooled is arranged in the cooling circuit and means are provided for controlling the quantity of coolant flowing through the refrigerant/coolant heat exchanger.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: September 21, 2010
    Assignee: Daimler AG
    Inventors: Markus Duhme, Alfred Jeckel
  • Internal combustion engine with a variable compression ratio
    Patent number: 7798109
    Abstract: In an internal combustion engine including a housing with cylinders arranged in the housing, a crankshaft, and pistons moveably disposed in the cylinders and operatively connected to the crankshaft, and a device for changing the compression ratio of the cylinders of the internal combustion engine, the device comprises an adjusting arrangement with an eccentric which is mounted in the housing and, by means of rotation, controls the position and the direction of movement of the adjusting arrangement, and a drive for operating the adjusting arrangement including the eccentric.
    Type: Grant
    Filed: October 27, 2007
    Date of Patent: September 21, 2010
    Assignee: Daimler AG
    Inventors: Michael Jürging, Jens Meintschel, Reinhard Orthmann, Hubert Schnüpke, Dietmar Schröer
  • Fuel Cell System for a Vehicle, Method for Monitoring a Fuel Cell System
    Publication number: 20100233559
    Abstract: A fuel cell system for a vehicle includes a fuel cell arrangement that is coupleable to a vehicle drive as a primary load, and to a plurality of secondary loads. A control apparatus which controls the primary load and the secondary loads includes a monitoring circuit that is operable in a special operating mode of the fuel cell system, with the secondary loads being switched on and/or off as a manipulated variable in order to maintain the output voltage, as a reference variable, at a low voltage value that is formed by a cell voltage of the fuel cells of less than 0.45 V on average.
    Type: Application
    Filed: May 23, 2008
    Publication date: September 16, 2010
    Applicants: Daimler AG, Ford Global Technologies, LLC
    Inventor: Uwe Limbeck
  • Wheel or wheel cover
    Patent number: D625245
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: October 12, 2010
    Assignee: Daimler AG
    Inventors: Bernhard Hans, Daniel Krisch