Patents by Inventor Thomas Pels

Thomas Pels 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: 20120136521
    Abstract: A method for operating a hybrid drive in a vehicle with an internal combustion engine and at least one electric machine connected thereto which is in connection with at least one energy storage device including operating the internal combustion engine is operated in overload mode in at least one preferably exceptional operating situation of the hybrid drive in order to avoid power losses at low loading state of the energy storage device.
    Type: Application
    Filed: February 2, 2012
    Publication date: May 31, 2012
    Inventors: Thomas PELS, Paul KAPUS, Peter EBNER, Robert FISCHER, Günter FRAIDL
  • Publication number: 20120116625
    Abstract: A method for operating a hybrid drive in a vehicle with an internal combustion engine and at least one electric machine connected thereto which is in connection with at least one energy storage device including operating the internal combustion engine is operated in overload mode in at least one preferably exceptional operating situation of the hybrid drive in order to avoid power losses at low loading state of the energy storage device.
    Type: Application
    Filed: December 13, 2011
    Publication date: May 10, 2012
    Inventors: Thomas Pels, Paul Kapus, Peter Ebner, Robert Fischer, Günter Fraidl, Wolfgang Kriegler, Carsten Kaup
  • Patent number: 8136615
    Abstract: A method for operating a hybrid drive in a vehicle with an internal combustion engine and at least one electric machine connected thereto which is in connection with at least one energy storage device including operating the internal combustion engine is operated in overload mode in at least one preferably exceptional operating situation of the hybrid drive in order to avoid power losses at low loading state of the energy storage device.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: March 20, 2012
    Assignee: AVL List GmbH
    Inventors: Thomas Pels, Paul Kapus, Peter Ebner, Robert Fischer, Günter Fraidl, Wolfgang Kriegler, Carsten Kaup
  • Publication number: 20090133946
    Abstract: A method for operating a hybrid drive in a vehicle with an internal combustion engine and at least one electric machine connected thereto which is in connection with at least one energy storage device including operating the internal combustion engine is operated in overload mode in at least one preferably exceptional operating situation of the hybrid drive in order to avoid power losses at low loading state of the energy storage device.
    Type: Application
    Filed: August 31, 2006
    Publication date: May 28, 2009
    Inventors: Thomas Pels, Paul Kapus, Peter Ebner, Robert Fischer, Gunter Fraidl, Wolfgang Kriegler, Carsten Kaup
  • Patent number: 7166059
    Abstract: In a method for upshifting a parallel shift transmission having two input shafts, each of which is coupleable via a clutch to the drive shaft of a driving engine, an output shaft, which may be brought into rotationally fixed engagement with the input shafts via different transmission gear sets, and at least one electric machine that is rotationally fixedly connectable to an input shaft for output of a boost torque, which boosts the drive torque of the driving engine, the boost torque produced by the electric machine during the phase in which the speed of the driving engine drops when shifting from an old gear into a new, higher gear is at least approximately replaced by the torque produced by the driving engine as a result of the drop in speed.
    Type: Grant
    Filed: January 11, 2005
    Date of Patent: January 23, 2007
    Assignee: LuK Lamellen und Kupplungsbau Beteilingungs KG
    Inventors: Dierk Reitz, Thomas Pels, Bard Vestgard
  • Publication number: 20050164829
    Abstract: In a method for upshifting a parallel shift transmission having two input shafts, each of which is coupleable via a clutch to the drive shaft of a driving engine, an output shaft, which may be brought into rotationally fixed engagement with the input shafts via different transmission gear sets, and at least one electric machine that is rotationally fixedly connectable to an input shaft for output of a boost torque, which boosts the drive torque of the driving engine, the boost torque produced by the electric machine during the phase in which the speed of the driving engine drops when shifting from an old gear into a new, higher gear is at least approximately replaced by the torque produced by the driving engine as a result of the drop in speed.
    Type: Application
    Filed: January 11, 2005
    Publication date: July 28, 2005
    Applicant: LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KG
    Inventors: Dierk Reitz, Thomas Pels, Bard Vestgard
  • Publication number: 20050101432
    Abstract: A double clutch transmission in connection with an electric unit, as well as a method for operating the transmission.
    Type: Application
    Filed: October 9, 2003
    Publication date: May 12, 2005
    Applicant: Luk Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Thomas Pels, Dierk Reitz, Reinhard Berger, Wolfgang Reik, Robert Fischer
  • Patent number: 6887180
    Abstract: The power train of a motor vehicle employs a hybrid drive including a combustion engine and an electrical machine. The transmission of the power train is shiftable into different gears in dependency upon the operating conditions of the vehicle. Such conditions include a traction condition when the vehicle is propelled by the engine and/or by the electrical machine, a coasting condition when the vehicle is being decelerated with attendant conversion of kinetic energy into electrical and/or rotational energy and storage of converted energy, a cold starting condition when the cold engine is started by the electrical machine, and a warm starting condition when the hot engine is started by the electrical machine and/or by at least one flywheel.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: May 3, 2005
    Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Thomas Pels, Dierk Reitz, Martin Dilzer
  • Patent number: 6668953
    Abstract: A power train for a motor vehicle including an internal combustion engine, a power transmission, and an energy converter positioned between the engine and the transmission. A first clutch is positioned between the engine and the energy converter and a second clutch is positioned between the power transmission and the energy converter. The energy converter is operatively connected with at least one accessory for driving the accessory by energy derived either from the rotational motion of the engine crankshaft or from rotational motion transferred from the vehicle's drive wheels through the transmission.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: December 30, 2003
    Assignee: LuK Lamellan und Kunpplungsbau Beteiligungs KG
    Inventors: Wolfgang Reik, Thomas Pels, Dierk Reitz
  • Patent number: 6634247
    Abstract: A double clutch transmission in connection with an electric unit, as well as a method for operating the transmission.
    Type: Grant
    Filed: July 14, 2001
    Date of Patent: October 21, 2003
    Assignee: LuK Lamellen Und Kupplungsbau Beteiligungs KG
    Inventors: Thomas Pels, Dierk Reitz, Reinhard Berger, Wolfgang Reik, Robert Fischer
  • Patent number: 6543561
    Abstract: The invention relates to drive systems for a motor vehicle, with an internal combustion engine (1) and at least one electric machine (6, 6′), each of which can be used independently as a drive motor for the vehicle, the drive systems being constructed in such a way that the vehicle drive-away phase proceeds as follows: i) the vehicle is initially accelerated by the electric machine (6, 6′) alone, ii) during this process, the internal combustion engine (1) is started, iii) the internal combustion engine (1) then takes over the driving of the vehicle, jerky coupling of the internal combustion engine (1) in the course of steps i) to iii) being avoided either by a) entraining the internal combustion engine (1) while the electric machine (6, 6′) is accelerating the vehicle, or b) the internal combustion engine (1) being accelerated for the purpose of starting while decoupled from the drive and being coupled to the drive at the synchronous speed.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: April 8, 2003
    Assignee: Continental ISAD Electronic Systems GmbH & Co. KG
    Inventors: Thomas Pels, Klaus Revermann
  • Patent number: 6487998
    Abstract: The invention concerns a drive system, especially for a motor vehicle, with a multicylinder internal combustion engine, a device for shutting off at least some of the cylinders of the internal combustion engine, and a device for active reduction of rotational nonuniformities, acting in particular on a shaft, such as a drive shaft of the internal combustion engine, or a shaft that is coupled or which can be coupled to it, which is active at least for certain operating states during cylinder shutoff mode. A method of operating such a drive system is also disclosed.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: December 3, 2002
    Assignees: ISAD Electronic Systems GmbH & Co., KG, Gründl ünd Hoffmann GmbH Gesellschaft für elektrotechnische Entwicklungen
    Inventors: Ullrich Masberg, Thomas Pels, Klaus-Peter Zeyen, Andreas Gründl, Bernhard Hoffmann
  • Publication number: 20020177504
    Abstract: The power train of a motor vehicle employs a hybrid drive including a combustion engine and an electrical machine. The transmission of the power train is shiftable into different gears in dependency upon the operating conditions of the vehicle. Such conditions include a traction condition when the vehicle is propelled by the engine and/or by the electrical machine, a coasting condition when the vehicle is being decelerated with attendant conversion of kinetic energy into electrical and/or rotational energy and storage of converted energy, a cold starting condition when the cold engine is started by the electrical machine, and a warm starting condition when the hot engine is started by the electrical machine and/or by at least one flywheel.
    Type: Application
    Filed: March 29, 2002
    Publication date: November 28, 2002
    Applicant: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Thomas Pels, Dierk Reitz, Martin Dilzer
  • Patent number: 6481406
    Abstract: The invention is directed to a starter system for an internal combustion engine, comprising an electric starter; a starter battery for warming up or starting the combustion engine; a temperature measuring device for measuring the temperature of the starter battery; a power electronics module, which actively varies the magnitude of a discharge current drawn from the starter battery for the purpose of warming up or starting the engine; and a control device, feeding the power electronics module with the value of the discharge current to be varied, where, at low battery temperatures, the maximum discharge current is lower than at high temperatures. The invention is also directed to a method for starting an internal combustion engine.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: November 19, 2002
    Assignee: Continential ISAD Electronic Systems GmbH & Co., oHG
    Inventor: Thomas Pels
  • Patent number: 6483197
    Abstract: The invention concerns a drive system with a drive motor (1), especially an internal combustion engine of a motor vehicle, and a drive train (27); an electric machine (26), which can apply a braking and/or driving torque to the drive motor (1) and/or drive train (27) and/or form a coupling in the drive train (27); and an open-loop/closed-loop control system, which controls/regulates the electric machine such that it diminishes drive train torque and/or speed fluctuations.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: November 19, 2002
    Assignee: Continental ISAD Electronic Systems GmbH & Co., KG
    Inventors: Ullrich Masberg, Thomas Pels, Klaus-Peter Zeyen, Andreas Gründl, Bernhard Hoffmann
  • Patent number: 6453863
    Abstract: A method for starting an internal combustion engine and a starter system is disclosed. The crankshaft of an internal combustion engine is accelerated at least to the starting speed required for starting the internal combustion engine. The crankshaft is brought to a stipulated crank angle for the starting process by an electric machine before the actual starting process, and the starting process is started from this crank angle.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: September 24, 2002
    Assignees: Continental ISAD Electronic Systems GmbH & Co. KG, Bayerische Moteren Werke Aktiehgesellschaft
    Inventors: Thomas Pels, Franz Rosskopf
  • Patent number: 6405701
    Abstract: The invention concerns a system for active reduction of rotational nonuniformities of a shaft, especially the drive shaft (10) of an internal combustion engine or a shaft that is coupled or can be coupled to it, with at least one electric machine (4), which is coupled or can be coupled to the shaft, wherein the electric machine (4) is controlled such that it generates a rapidly varying torque, to reduce the rotational nonuniformities, and it superimposes on this torque a positive or negative torque in order to further achieve a driving action or braking or generator type action. The invention is also oriented to a corresponding method for active reduction of rotational nonuniformities.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: June 18, 2002
    Assignees: ISAD Electronic Systems GmbH & Co. KG, Gründl und Hoffmann GmbH Gesellschaft für elektrotechnische Entwicklungen
    Inventors: Ullrich Masberg, Thomas Pels, Klaus-Peter Zeyen, Andreas Gründl, Bernhard Hoffmann
  • Patent number: 6365983
    Abstract: The invention concerns a starter/generator for an internal combustion engine (1), especially that of a motor vehicle, with an electric rotary-field machine (4), which exercises the starter and generator function; and at least one invertor (17) for generating the voltages and/or currents of variable frequency, amplitude and/or phase required for the magnetic fields of the electric machine (4); wherein the electric machine (4) starts the internal combustion engine (1) by merging in from standstill.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: April 2, 2002
    Assignees: ISAD Electronic Systems GmbH & Co. KG, Grundl und Hoffman GmbH
    Inventors: Ullrich Masberg, Thomas Pels, Klaus-Peter Zeyen, Andreas Gründl, Bernhard Hoffmann
  • Publication number: 20020033059
    Abstract: A double clutch transmission in connection with an electric unit, as well as a method for operating the transmission.
    Type: Application
    Filed: July 14, 2001
    Publication date: March 21, 2002
    Inventors: Thomas Pels, Dierk Reitz, Reinhard Berger, Wolfgang Reik, Robert Fischer
  • Publication number: 20020020381
    Abstract: The invention is directed to a starter system for an internal combustion engine, comprising an electric starter; a starter battery for warming up or starting the combustion engine; a temperature measuring device for measuring the temperature of the starter battery; a power electronics module, which actively varies the magnitude of a discharge current drawn from the starter battery for the purpose of warming up or starting the engine; and a control device, feeding the power electronics module with the value of the discharge current to be varied, where, at low battery temperatures, the maximum discharge current is lower than at high temperatures. The invention is also directed to a method for starting an internal combustion engine.
    Type: Application
    Filed: March 6, 2001
    Publication date: February 21, 2002
    Applicant: Continental ISAD Electronic Systems GmbH & Co. oHG
    Inventor: Thomas Pels