Patents by Inventor Tobias Ostertag

Tobias Ostertag 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).

  • Patent number: 7870918
    Abstract: In a drive unit for a motor vehicle having a vehicle body, an electric machine which is supported by the vehicle body, a sprung wheel suspension and a wheel supported thereby, and the wheel being drive-connected to a device for transmitting torque between the electric machine and the wheel, the wheel suspension comprises a strut unit and the device for transmitting torque is arranged between the electric machine and the wheel and extends coaxially with respect to the axis of the strut unit so as to form a compact design with small unsprung masses while providing for the possibility of a torque transfer between the electric machine and the wheel.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: January 18, 2011
    Assignee: Daimler AG
    Inventors: Roland Müller, Tobias Ostertag
  • Patent number: 7421928
    Abstract: In a motor vehicle drive arrangement having an electric motor with a rotor for driving an oil pump and being supported in an air space of a housing by a rotor disk of the rotor of the electric motor which is permanently connected to a pump rotor of the oil pump, a freewheeling mechanism for a mechanical drive of the pump rotor of the oil pump is provided for coupling the oil pump to a vehicle travel drive train of the vehicle drive arrangement when the travel drive train rotates faster than the electric motor.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: September 9, 2008
    Assignee: Daimler AG
    Inventors: Andreas Klaus, Tobias Ostertag
  • Patent number: 7413417
    Abstract: In a motor vehicle drive arrangement oil is supplied to a drive gear mechanism and other drive elements by an oil pump which is driven only by an electric motor and is arranged in a space in which one or more torque transmission devices such as a hydrodynamic torque converter, an operable drive clutch and at least one electric motor for forming a hybrid drive are disposed and which is formed between the oil pump and electric motor, on the one hand, and the vehicle travel drive motor on the other, the oil pump is disposed around a shaft transmitting the drive torque to the transmission and is surrounded by the electric motor driving the pump.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: August 19, 2008
    Assignee: Daimler AG
    Inventors: Andreas Klaus, Tobias Ostertag
  • Publication number: 20080190677
    Abstract: In a drive unit for a motor vehicle having a vehicle body, an electric machine which is supported by the vehicle body, a sprung wheel suspension and a wheel supported thereby, and the wheel being drive-connected to a device for transmitting torque between the electric machine and the wheel, the wheel suspension comprises a strut unit and the device for transmitting torque is arranged between the electric machine and the wheel and extends coaxially with respect to the axis of the strut unit so as to form a compact design with small unsprung masses while providing for the possibility of a torque transfer between the electric machine and the wheel.
    Type: Application
    Filed: January 22, 2008
    Publication date: August 14, 2008
    Inventors: Roland Muller, Tobias Ostertag
  • Patent number: 7353895
    Abstract: A vehicle having a transmission for transmitting a torque from a drive machine to drive wheels, with the transmission having an transmission output shaft and a transmission input shaft, in which the torque can be transmitted from the drive machine to the transmission output shaft, and having an electrical machine which has a rotor and a stator, which means being provided in order to connect the electric-motor torque of the electrical machine optionally to the transmission input shaft or to the transmission output shaft.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: April 8, 2008
    Assignee: DaimlerChrysler AG
    Inventors: Otmar Bitsche, Karl-Ernst Noreikat, Tobias Ostertag, Alfons Rennefeld, Wolfgang Schwienbacher, Sven Stephan, Lars Weinschenker
  • Publication number: 20060060398
    Abstract: A vehicle having a transmission for transmitting a torque from a drive machine to drive wheels, with the transmission having an transmission output shaft and a transmission input shaft, in which the torque can be transmitted from the drive machine to the transmission output shaft, and having an electrical machine which has a rotor and a stator, which means being provided in order to connect the electric-motor torque of the electrical machine optionally to the transmission input shaft or to the transmission output shaft.
    Type: Application
    Filed: June 22, 2005
    Publication date: March 23, 2006
    Inventors: Otmar Bitsche, Karl-Ernst Noreikat, Tobias Ostertag, Alfons Rennefeld, Wolfgang Schwienbacher, Sven Stephan, Lars Weinschenker
  • Publication number: 20050265858
    Abstract: In a motor vehicle drive arrangement oil is supplied to a drive gear mechanism and other drive elements by an oil pump which is driven only by an electric motor and is arranged in a space in which one or more torque transmission devices such as a hydrodynamic torque converter, an operable drive clutch and at least one electric motor for forming a hybrid drive are disposed and which is formed between the oil pump and electric motor, on the one hand, and the vehicle travel drive motor on the other, the oil pump is disposed around a shaft transmitting the drive torque to the transmission and is surrounded by the electric motor driving the pump.
    Type: Application
    Filed: April 20, 2005
    Publication date: December 1, 2005
    Inventors: Andreas Klaus, Tobias Ostertag
  • Patent number: 6863140
    Abstract: A motor vehicle drive arrangement has a locomotive drive train and at least one liquid pump capable of being driven by the latter. During a standstill in rotation or during very slow rotation of the locomotive drive train, the pump is capable of being driven by an electric motor instead of by the locomotive drive train. Beyond a defined minimum rotational speed of the locomotive drive train, the liquid pump is capable of being driven by the latter instead of by the electric motor. At least one free-wheel is provided for this purpose.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: March 8, 2005
    Assignee: DaimlerChrysler AG
    Inventors: Karl-Ernst Noreikat, Tobias Ostertag, Lars Saroch
  • Patent number: 6862887
    Abstract: Hybrid drive containing a clutch between an engine power-output shaft (4) and a transmission power-input shaft (16) arranged axially with respect to the said power-output shaft; a first electric machine (6) connected to the engine power-output shaft (4) in a torque-transmitting manner; a second electric machine (14) connected to the transmission power-input shaft (16) in a torque-transmitting manner; preferably also a torsional vibration damper (8), which is connected in a rotationally fixed manner to the engine power-output shaft (4), the first-electric machine (6) being connected to the engine power-output shaft (4) in a torque-transmitting manner, ahead of the torsional vibration damper (8) in terms of the direction in which the torsional vibration damper (8) transmits the power of the propulsion drive engine. The parts of the hybrid drive are nested axially one inside the other.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: March 8, 2005
    Assignee: Daimler Chrysler AG
    Inventors: Karl-Ernst Noreikat, Tobias Ostertag, Alfons Rennefeld
  • Publication number: 20040079565
    Abstract: The invention relates to a vehicle having a transmission for transmitting a torque from a drive machine to drive wheels, with the transmission having a transmission output shaft and a transmission input shaft, in which the torque can be transmitted from the drive machine to the transmission output shaft, and having an electrical machine which has a rotor and a stator, with means being provided in order to connect the electric-motor torque of the electrical machine optionally to the transmission input shaft or to the transmission output shaft.
    Type: Application
    Filed: October 23, 2003
    Publication date: April 29, 2004
    Applicant: DaimlerChrysler AG.
    Inventors: Otmar Bitsche, Karl-Ernst Noreikat, Tobias Ostertag, Alfons Rennefeld, Wolfgang Schwienbacher, Sven Stephan, Lars Weinschenker
  • Patent number: 6719654
    Abstract: An electric drive is complementary to an internal combustion engine of a motor vehicle with a drive train having a differential and an electric motor 6 integrated into the drive train. A main shaft of the electric motor is connected directly to a gear ring of the differential in a positive and/or non-positive manner.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: April 13, 2004
    Assignee: DaimlerChrysler AG
    Inventors: Tilo Deichl, Tilo Schweers, Tobias Ostertag
  • Patent number: 6695082
    Abstract: A vehicle having a transmission for transmitting a torque from a drive machine to drive wheels, with the transmission having a transmission output shaft and a transmission input shaft, in which the torque can be transmitted from the drive machine to the transmission output shaft, and having an electrical machine which has a rotor and a stator, with means being provided in order to connect the electric-motor torque of the electrical machine optionally to the transmission input shaft or to the transmission output shaft.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: February 24, 2004
    Assignee: DaimlerChrysler AG
    Inventors: Otmar Bitsche, Karl-Ernst Noreikat, Tobias Ostertag, Alfons Rennefeld, Wolfgang Schwienbacher, Sven Stephan, Lars Weinschenker
  • Publication number: 20030127262
    Abstract: A motor vehicle drive arrangement has a locomotive drive train and at least one liquid pump capable of being driven by the latter. During a standstill in rotation or during very slow rotation of the locomotive drive train, the pump is capable of being driven by an electric motor instead of by the locomotive drive train. Beyond a defined minimum rotational speed of the locomotive drive train, the liquid pump is capable of being driven by the latter instead of by the electric motor. At least one free-wheel is provided for this purpose.
    Type: Application
    Filed: December 9, 2002
    Publication date: July 10, 2003
    Inventors: Karl-Ernst Noreikat, Tobias Ostertag, Lars Saroch
  • Publication number: 20030106729
    Abstract: Hybrid drive containing a clutch between an engine power-output shaft (4) and a transmission power-input shaft (16) arranged axially with respect to the said power-output shaft; a first electric machine (6) connected to the engine power-output shaft (4) in a torque-transmitting manner; a second electric machine (14) connected to the transmission power-input shaft (16) in a torque-transmitting manner; preferably also a torsional vibration damper (8), which is connected in a rotationally fixed manner to the engine power-output shaft (4), the first electric machine (6) being connected to the engine power-output shaft (4) in a torque-transmitting manner, ahead of the torsional vibration damper (8) in terms of the direction in which the torsional vibration damper (8) transmits the power of the propulsion drive engine. The parts of the hybrid drive are nested axially one inside the other.
    Type: Application
    Filed: November 1, 2002
    Publication date: June 12, 2003
    Applicant: DaimlerChrysler AG.
    Inventors: Karl-Ernst Noreikat, Tobias Ostertag, Alfons Rennefeld
  • Publication number: 20020053475
    Abstract: The invention relates to a vehicle having a transmission for transmitting a torque from a drive machine to drive wheels, with the transmission having a transmission output shaft and a transmission input shaft, in which the torque can be transmitted from the drive machine to the transmission output shaft, and having an electrical machine which has a rotor and a stator, with means being provided in order to connect the electric-motor torque of the electrical machine optionally to the transmission input shaft or to the transmission output shaft.
    Type: Application
    Filed: October 22, 2001
    Publication date: May 9, 2002
    Inventors: Otmar Bitsche, Karl-Ernst Noreikat, Tobias Ostertag, Alfons Rennefeld, Wolfgang Schwienbacher, Sven Stephan, Lars Weinschenker