Patents by Inventor Jörg-Michael Birkhold

Jörg-Michael Birkhold 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: 9175633
    Abstract: A motor vehicle has an internal combustion engine and at least one electric motor as a drive motor arranged on a common shaft. The internal combustion engine and/or the electric motor can introduce torque into a transmission downstream in the drivetrain, and a separating clutch is provided between the internal combustion engine and the electric motor. The method increases torque of the electric machine, increasing the rotational speed of the electric machine and setting slip conditions at a clutch of the downstream transmission, engaging the separating clutch to a torque between the reserve torque of the electric motor and the maximum transmissible torque, reducing the transmissible torque of the separating clutch when the rotational speed of the internal combustion engine has reached the ignition rotational speed, ending the slip conditions of the at least one clutch of the downstream transmission, ending the increase of the torque of the electric motor.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: November 3, 2015
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Nils Sauvlet, Markus Oel, Joerg-Michael Birkhold
  • Patent number: 9126590
    Abstract: A method is provided for adapting the torque that can be transmitted by a clutch of a motor vehicle that has an internal combustion engine and an electric motor for driving. A pressure medium activation device is driven by an actuator and has a pressure medium link between a master cylinder and a slave cylinder for activating the clutch. An adaptation of the torque that can be transmitted by the clutch takes place in a disengaged clutch position and a change in the actuator position a given pressure of the pressure medium activation device is used to adapt the actuator position or the clutch characteristic curve.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: September 8, 2015
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Markus Oel, Jörg-Michael Birkhold, Nils Sauvlet
  • Patent number: 8777806
    Abstract: A drivetrain (1) for a parallel hybrid vehicle has an internal combustion engine (2), an electric machine (3) and a transmission (4). The engine (2) and the electric machine (3) interact with a common input shaft (5) of the transmission (4). At least one axle of the vehicle can be driven by the internal combustion engine (2) and/or the electric machine (3) via an output shaft (6) of the transmission (4). A clutch (7) is between the internal combustion engine (2) and electric machine (3) and can open to decouple the internal combustion engine (2) from the input shaft (5) of the transmission (4). The clutch (7) has a first element (8) for positive locking connection of the electric machine (3) to the internal combustion engine (2) and a second element (9) for frictional locking connection of the electric machine (3) to the internal combustion engine (2).
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: July 15, 2014
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Joerg-Michael Birkhold, Nils Sauvlet
  • Publication number: 20130282217
    Abstract: A method is provided for adapting the torque that can be transmitted by a clutch of a motor vehicle that has an internal combustion engine and an electric motor for driving. A pressure medium activation device is driven by an actuator and has a pressure medium link between a master cylinder and a slave cylinder for activating the clutch. An adaptation of the torque that can be transmitted by the clutch takes place in a disengaged clutch position and a change in the actuator position a given pressure of the pressure medium activation device is used to adapt the actuator position or the clutch characteristic curve.
    Type: Application
    Filed: April 18, 2013
    Publication date: October 24, 2013
    Applicant: Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    Inventors: Markus Oel, Jörg-Michael Birkhold, Nils Sauvlet
  • Publication number: 20130247870
    Abstract: A motor vehicle has an internal combustion engine and at least one electric motor as a drive motor arranged on a common shaft. The internal combustion engine and/or the electric motor can introduce torque into a transmission downstream in the drivetrain, and a separating clutch is provided between the internal combustion engine and the electric motor. The method increases torque of the electric machine, increasing the rotational speed of the electric machine and setting slip conditions at a clutch of the downstream transmission, engaging the separating clutch to a torque between the reserve torque of the electric motor and the maximum transmissible torque, reducing the transmissible torque of the separating clutch when the rotational speed of the internal combustion engine has reached the ignition rotational speed, ending the slip conditions of the at least one clutch of the downstream transmission, ending the increase of the torque of the electric motor.
    Type: Application
    Filed: March 20, 2013
    Publication date: September 26, 2013
    Applicant: Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    Inventors: Nils Sauvlet, Markus Oel, Joerg-Michael Birkhold
  • Publication number: 20130072347
    Abstract: A drivetrain (1) for a parallel hybrid vehicle has an internal combustion engine (2), an electric machine (3) and a transmission (4). The engine (2) and the electric machine (3) interact with a common input shaft (5) of the transmission (4). At least one axle of the vehicle can be driven by the internal combustion engine (2) and/or the electric machine (3) via an output shaft (6) of the transmission (4). A clutch (7) is between the internal combustion engine (2) and electric machine (3) and can open to decouple the internal combustion engine (2) from the input shaft (5) of the transmission (4). The clutch (7) has a first element (8) for positive locking connection of the electric machine (3) to the internal combustion engine (2) and a second element (9) for frictional locking connection of the electric machine (3) to the internal combustion engine (2).
    Type: Application
    Filed: September 5, 2012
    Publication date: March 21, 2013
    Applicant: DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFT
    Inventors: Joerg-Michael Birkhold, Nils Sauvlet
  • Patent number: 8360183
    Abstract: A vehicle has an internal combustion engine, an electric drive device and a transmission with two component transmissions that can be selected simultaneously. Torque can be transmitted from the electric drive device and/or the internal combustion engine to at least one axle of the vehicle, and a torque can be transmitted from the axle to the electric drive device and/or the internal combustion engine. The internal combustion engine is adjusted from a deactivated state to an energized state. Torque is transmitted to the internal combustion engine by the axle and/or the electric drive device via one of two shifting elements to increase rotational speed of the internal combustion engine. The internal combustion engine is adjusted to a target rotational speed via one of the shifting elements. The connection between the internal combustion engine and the axle is produced via one of the shifting elements upon reaching the target rotational speed.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: January 29, 2013
    Assignee: Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    Inventors: Nils Sauvlet, Joerg-Michael Birkhold, Martin Fuechtner
  • Publication number: 20110203860
    Abstract: A vehicle has an internal combustion engine, an electric drive device and a transmission with two component transmissions that can be selected simultaneously. Torque can be transmitted from the electric drive device and/or the internal combustion engine to at least one axle of the vehicle, and a torque can be transmitted from the axle to the electric drive device and/or the internal combustion engine. The internal combustion engine is adjusted from a deactivated state to an energized state. Torque is transmitted to the internal combustion engine by the axle and/or the electric drive device via one of two shifting elements to increase rotational speed of the internal combustion engine. The internal combustion engine is adjusted to a target rotational speed via one of the shifting elements. The connection between the internal combustion engine and the axle is produced via one of the shifting elements upon reaching the target rotational speed.
    Type: Application
    Filed: February 3, 2011
    Publication date: August 25, 2011
    Applicant: DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFT
    Inventors: Nils Sauvlet, Joerg-Michael Birkhold, Martin Fuechtner