Patents by Inventor Andreas Grundl

Andreas Grundl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20080048493
    Abstract: A brake unit for a hydraulic, single-circuit or multi-circuit braking system of a land vehicle, with fluid on-off valves to be operated electrically, an electronic closed-loop/open-loop control circuit to provide control signals for the fluid on-off valves by which the hydraulic pressure in the brake circuits is modulated, a unit body, which consists of at least two ceramic boards connected to each other, and which has the fluid on-off valves, hydraulic connecting lines between the fluid on-off valves being incorporated in the boards, and at least one of the boards being used as the carrier board for electrical/electronic components and electrical connecting lines of the electronic open-loop/closed-loop control circuit.
    Type: Application
    Filed: August 10, 2007
    Publication date: February 28, 2008
    Applicant: Compact Dynamics GmbH
    Inventors: Andreas Grundl, Bernhard Hoffmann
  • Patent number: 7279820
    Abstract: A machine with transversal flux comprises a stator and a rotor. Therein, either the stator has a coil arrangement and the rotor is provided with permanent magnet elements, or the rotor may have a coil arrangement and the stator is provided with permanent magnet elements. The coil arrangement has at least one cylindrical winding and is encompassed by a magnetic flux yoke which in a sectional view along the centre longitudinal axis of the coil arrangement is approximately C-shaped. The magnetic flux yoke has a leg at each end which at least partially encompasses one face each of the coil arrangement. At one surface area of the coil arrangement several magnetic flux conducting pieces are arranged coaxially with the centre longitudinal axis of the coil arrangement in several rows. Under the formation of an air gap, the permanent magnet elements are arranged whose magnetic orientation towards the air gap is alternating.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: October 9, 2007
    Assignee: Compact Dynamics GmbH
    Inventors: Andreas Gründl, Bernhard Hoffmann
  • Publication number: 20070175436
    Abstract: A fuel injection valve for fuel injection systems of combustion engines, in particular for the direct injection of fuel into a combustion chamber of a combustion engine, comprising a fuel inlet which is adapted to have fuel flow into the fuel injection valve, an electrically controllable actuator which cooperates with a valve arrangement in order to cause the fuel in a directly or indirectly controlled manner to exit into the combustion chamber through a fuel outlet, with the actuator comprising a magnet coil arrangement to be supplied with current, an essentially soft magnetic magnet yoke arrangement cooperating with same, as well as an essentially soft magnetic magnet armature arrangement cooperating with same, with the magnet yoke arrangement and/or the magnet armature arrangement comprising a configuration which reduces eddy currents.
    Type: Application
    Filed: February 2, 2004
    Publication date: August 2, 2007
    Inventors: Andreas Grundl, Bernhard Hoffman
  • Publication number: 20070052315
    Abstract: A travelling field machine with a stator and a rotor which are separated by an air gap and each of which comprises at least one stator coil or one rotor coil, with the stator or the rotor, respectively, comprising a soft magnetic iron body with a stator or rotor back, in which spaced grooves are formed, generating teeth, and in each of the grooves several conductor bars of the stator coil or the rotor coil, respectively, are arranged in series comprising end connectors arranged at the faces of the stator or the rotor, respectively, which connect the conductor bars extending across at least one groove, with the conductor bars comprising conductor portions of different length projecting beyond the faces of the stator or rotor, respectively, and the end connectors being arranged in a stacked fashion in the axial direction at the faces of the stator or the rotor.
    Type: Application
    Filed: June 30, 2004
    Publication date: March 8, 2007
    Applicant: Compact Dynamics GmbH
    Inventors: Andreas Grundl, Bernhard Hoffmann
  • Publication number: 20060244329
    Abstract: A machine with transversal flux comprises a stator and a rotor. Therein, either the stator has a coil arrangement and the rotor is provided with permanent magnet elements, or the rotor may have a coil arrangement and the stator is provided with permanent magnet elements. The coil arrangement has at least one cylindrical winding and is encompassed by a magnetic flux yoke which in a sectional view along the centre longitudinal axis of the coil arrangement is approximately C-shaped. The magnetic flux yoke has a leg at each end which at least partially encompasses one face each of the coil arrangement. At one surface area of the coil arrangement several magnetic flux conducting pieces are arranged coaxially with the centre longitudinal axis of the coil arrangement in several rows. Under the formation of an air gap, the permanent magnet elements are arranged whose magnetic orientation towards the air gap is alternating.
    Type: Application
    Filed: June 3, 2004
    Publication date: November 2, 2006
    Inventors: Andreas Grundl, Bernhard Hoffmann
  • Publication number: 20060209494
    Abstract: An electronic assembly for switching electric power, comprising two power supply buses spaced from each other between which semiconductor switches to be driven by means of a control input are arranged at a power output for providing electric power, a capacitor arrangement bridging the two power supply buses, which extends at least partially over the length of the power supply buses, two contact layers originating from one each of the power supply buses and covering the capacitor arrangement at least partially, with the contact layers comprising free end portions which mutually project one another towards the respective other one of the power supply buses, and with the two contact layers having a freely accessible contact area each which is adapted for contact making with correspondingly configured power terminals.
    Type: Application
    Filed: June 11, 2004
    Publication date: September 21, 2006
    Inventors: Andreas Grundl, Bernhard Hoffmann
  • Publication number: 20060175568
    Abstract: An electrically actuated valve arrangement for the controlled opening and closing of a working chamber of an internal-combustion engine, with an electrical linear drive unit which, depending on electrical triggering signals, causes a valve stem of the valve arrangement to execute longitudinal movements between an open position and a closed position of the valve arrangement, with at least one actuating element and an engagement element interacting with said actuating element, one of these elements being arranged in torsion-resistant manner on the valve stem and the other of these elements being arranged statically in relation to the mobile valve stem in such a manner that prior to reaching the open or closed position of the valve stem the engagement element and the actuating element come into engagement with one another and trigger a rotary movement which is superimposed on the longitudinal movement of the valve stem.
    Type: Application
    Filed: January 23, 2004
    Publication date: August 10, 2006
    Inventors: Andreas Grundl, Bernhard Hoffmann
  • Patent number: 7049716
    Abstract: The invention concerns a fluid-cooled electrical machine with a housing in which are arranged a stator and a rotor with stator and/or rotor coils, wherein the electrical machine is coupled heat-conductively with a cooling device arranged on its periphery and connected with an electronic power control. The electronic power control is divided into several modules, each of which are electrically connected with at least one of the stator and/or rotor coils, wherein the modules are arranged distributed on the periphery of the electrical machine and coupled heat-conductively with the cooling device.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: May 23, 2006
    Assignee: Compact Dynamics GmbH
    Inventors: Andreas Gründl, Bernhard Hoffmann
  • Publication number: 20060096795
    Abstract: Hybrid drive for a motor vehicle with a drive train, comprising a combustion engine and a vehicle transmission with variable gear ratio and a first and second electrical machine which can be operated both as a motor and a generator, each of which comprises a stator and a rotor with the second electrical machine being in a permanent nonpositive connection with an input of the vehicle transmission, with a shiftable clutch each being arranged between the electrical machines and the drive shaft of the combustion engine, and with the electrical machines to be connected with each other and/or an electrical energy source via an electronic control circuit. The two electrical machines are to be arranged in a common housing, and one of the stators of the electrical machines together with the electronic control circuit and/or the other stator is accommodated on a common carrier.
    Type: Application
    Filed: October 14, 2003
    Publication date: May 11, 2006
    Inventors: Andreas Grundl, Bernhard Hoffmann, Reinhard Rasch, Friedrich Mortl, Hans Glonner, Georg Gotz, Jorg Michael, Markus Kaindl
  • Patent number: 7014587
    Abstract: An automatic powershift gearbox with at least one gearbox assembly for selecting the respective gear ratios and with at least one multiple-disk clutch capable of being actuated in a controlled manner for holding or releasing individual elements of the planet gear, which allows gear shift operations without interrupting the torque flow. The multiple-disk clutch comprises a first and a second disk set which are in mutual engagement and can be brought into friction engagement by axial compression against one another. The first disk set is connected with a first shaft, and the second disk set is connected with a second shaft. The multiple-disk clutch is coupled by a transmission with an electric machine comprising a rotor and a stator, for bringing the two disk sets into and out of friction engagement by means of the electric machine. The rotor of the electric machine is supported rotatably and axially movable on one of the shafts by means of a gearbox for converting a rotary motion into a thrust motion.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: March 21, 2006
    Assignee: Compact Dynamics GmbH
    Inventors: Andreas Grundl, Bernhard Hoffmann
  • Patent number: 6958560
    Abstract: The invention relates to a winding arrangement for an electric machine with a polyphase winding, in which a plurality of coils or coil groups connected in parallel (50, 52, 54, 56) are connected with a conductor rail (40, 42, 44, 46). This makes it possible to connect the coil ends directly and without connecting pieces with the electric power supply. The conductor rails (40, 42, 44, 46) are preferably arranged at one or both face sides of the post of the electric machine below the slot openings, i.e., in the area of the back of the post. Furthermore, the invention is aimed at an corresponding manufacturing method for a winding arrangement of a polyphase winding for an electric machine, in which the coils or coil groups connected in parallel (50, 52, 54, 56) of the winding are connected with one of the conductor rails (40, 42, 44, 46).
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: October 25, 2005
    Assignee: Temic Automotive Electric Motors GmbH
    Inventors: Georg Holzheu, Ulrich Masberg, Michael Menhart, Andreas Gründl, Bernhard Hoffmann, Reinhard Rasch
  • Patent number: 6930428
    Abstract: The invention relates to an assembly of an electric machine with at least two abutting circular ring or circular disk-shaped sheet metal layers, wherein each of the sheet metal layers is formed by several circular ring or circular disk-shaped sheet metal segments which are arranged concentrically about a centre axis, of which two each are abutting under the formation of a connecting joint and comprise a predetermined minimum cross-sectional area in the radial direction, and with the sheet metal segments of abutting sheet metal layers partially overlapping one another in the circumferential direction and are joined by welds distributed along the circumferential area, with the number of welds between a connecting joint of two sheet metal segments of a sheet metal layer and a connecting joint of two sheet metal segments of a neighbouring sheet metal layer being calculated in such a manner that the sum of the effective areas of these welds is at least approximately equal to the predetermined minimum cross-section
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: August 16, 2005
    Assignee: Compact Dynamics GmbH
    Inventors: Andreas Gründl, Bernhard Hoffmann
  • Publication number: 20050151439
    Abstract: A travelling field machine with a stator and a rotor, each of which comprising at least one stator coil or one rotor coil, respectively, with the stator or the rotor, respectively, comprising a soft magnetic iron body with a stator or rotor back, respectively, in which spaced grooves are formed, generating teeth and the stator or rotor coils, respectively, comprising conductor bars arranged in the grooves of the stator or the rotor, respectively, and end windings arranged at the end faces of the stator or the rotor, respectively, and with the stator or rotor coils, respectively, in the area of the end windings being angled at least partially and essentially transverse to the bottom of the grooves and protruding from the bottom of the grooves at least partially in the direction of the stator or rotor backs, respectively.
    Type: Application
    Filed: September 4, 2002
    Publication date: July 14, 2005
    Inventors: Andreas Grundl, Bernhard Hoffmann
  • Publication number: 20050062563
    Abstract: The invention relates to a circuit arrangement for operating electric or electronic components in a motor vehicle with a two-voltage onboard network, with a direct current/direct current converter which comprises at least one input terminal, at least one output terminal and one ground terminal, with the input terminal being adapted to receive an input switching signal between a first voltage level and a ground level, and the output terminal being adapted to emit an output switching signal between a second voltage level, different from the first voltage level, and the ground level, the signal characteristic of which essentially follows the characteristic of the input switching signal, with the voltage converter with its input, output, and ground terminals being arranged in a housing which comprises a socket and which corresponds to a relay with respect to the dimensions and the positions of the input, output, and ground terminals at the socket.
    Type: Application
    Filed: March 8, 2001
    Publication date: March 24, 2005
    Inventors: Andreas Grundl, Bernhard Hoffmann
  • Patent number: 6870294
    Abstract: The invention concerns a winding for a post or an armature of an electric machine with a post or armature (32) with slots (34) composed at least in part of L-shaped structural parts (1, 2, 3). In doing so, one leg of an L-shaped structural part each time creates a slot bar (8a, 8b) located in a slot, and the other leg creates a connecting line (6a, 6b) located at a face of the post or armature. Moreover, the invention concerns a winding with several interlaced coils (50, 52, 50?, 52?, 50?, 52?) whereby the connecting lines (6) of interlaced coils (50, 52, 52?, 50?, 52?) are staggered and therefore arranged in layers. The invention furthermore concerns a winding with connecting lines (6) flatter than the slot bars (8), styled as a fractional pitched polyphase winding with two slots per pole and branch.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: March 22, 2005
    Assignee: Continental ISAD Electronic Systems GmbH & Co. oHG
    Inventors: Georg Holzheu, Ullrich Masberg, Michael Menhart, Andreas Gründl, Bernhard Hoffman, Reinhard Rasch
  • Patent number: 6865888
    Abstract: A turbo-compressor (20, 121) for a piston combustion engine (10), with the turbo-compressor (20, 121) comprising a fresh air inlet (24) and a fresh air outlet (26), with the turbo-compressor (20, 121) to be connected with the combustion engine (10) via the fresh air outlet (26), the turbo-compressor (20, 121) comprising a transmission shaft (32) coupled with an electric machine (30) for at least one compressor wheel (34), in order to set the compressor wheel (34) in rotation via the electric machine (30), whereby compressed fresh air is provided at the fresh air outlet (26) for the combustion engine (10), and with the electric machine (30) being a reluctance machine.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: March 15, 2005
    Assignee: Compact Dynamics GmbH
    Inventors: Andreas Gründl, Bernhard Hoffmann
  • Publication number: 20050015969
    Abstract: The invention relates to a method for the manufacture of an assembly of an electric machine with the steps of: manufacturing at least one portion of a coil of a rotor or stator of an electric machine; positioning the at least one portion of the coil in a casting mould, whose cavity shape reproduces at least a portion of the assembly; filling the casting mould with pulverised soft iron particles with a thermoplastic synthetic coating; heat treatment of the filled casting mould until the synthetic coating of the soft iron particles softens; allowing the filled casting mould to cool; and removing the assembly from the casting mould.
    Type: Application
    Filed: March 8, 2001
    Publication date: January 27, 2005
    Inventors: Andreas Grundl, Bernhard Hoffmann
  • Publication number: 20040147355
    Abstract: An automatic powershift gearbox with at least one gearbox assembly for selecting the respective gear ratios and with at least one multiple-disk clutch capable of being actuated in a controlled manner for holding or releasing individual elements of the planet gear, which allows gear shift operations without interrupting the torque flow. The multiple-disk clutch comprises a first and a second disk set which are in mutual engagement and can be brought into friction engagement by axial compression against one another. The first disk set is connected with a first shaft, and the second disk set is connected with a second shaft. The multiple-disk clutch is coupled by a transmission with an electric machine comprising a rotor and a stator, for bringing the two disk sets into and out of friction engagement by means of the electric machine. The rotor of the electric machine is supported rotatably and axially movable on one of the shafts by means of a gearbox for converting a rotary motion into a thrust motion.
    Type: Application
    Filed: February 17, 2004
    Publication date: July 29, 2004
    Inventors: Andreas Grundl, Bernhard Hoffmann
  • Publication number: 20040130219
    Abstract: The invention relates to an assembly of an electric machine with at least two abutting circular ring or circular disk-shaped sheet metal layers, wherein each of the sheet metal layers is formed by several circular ring or circular disk-shaped sheet metal segments which are arranged concentrically about a centre axis, of which two each are abutting under the formation of a connecting joint and comprise a predetermined minimum cross-sectional area in the radial direction, and with the sheet metal segments of abutting sheet metal layers partially overlapping one another in the circumferential direction and are joined by welds distributed along the circumferential area, with the number of welds between a connecting joint of two sheet metal segments of a sheet metal layer and a connecting joint of two sheet metal segments of a neighbouring sheet metal layer being calculated in such a manner that the sum of the effective areas of these welds is at least approximately equal to the predetermined minimum cross-section
    Type: Application
    Filed: March 5, 2004
    Publication date: July 8, 2004
    Inventors: Andreas Grundl, Bernhard Hoffman
  • Patent number: 6755161
    Abstract: The present invention relates to a gas exchange valve drive for a valve-controlled combustion engine with a hollow cylindrical rotor (16) to be coupled with a valve member (12) and a stator (18), wherein the rotor (16) comprises permanent-magnetic rings (30) concentrically arranged one above the other, the stator (18) is at least partially constructed of a soft magnetic material and comprises at least one tooth (22) facing towards the rotor (16), the stator (18) comprises a radially inner magnetically conductive area (50) and a radially outer magnetically conductive area (52), with the rings (30) of the rotor (16) being arranged between the inner area (50) and the outer area (52) of the stator (18), and the outer area (52) of the stator (18) in at least one partial section (54) is designed with a C-shaped cross-section and comprises at least one stator coil (28).
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: June 29, 2004
    Assignee: Compact Dynamics GmbH
    Inventors: Andreas Gründl, Bernhard Hoffmann