Patents by Inventor Tim Beattie

Tim Beattie 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).

  • Process and device for electronically controlling actuators of a combustion engine with variable gas exchange control
    Patent number: 6671610
    Abstract: In a process and a device for electronically controlling actuators of a combustion engine with variable gas exchange control using a suction pipe pressure model where the connection between the cylinder filling level and the suction pipe pressure is described by a straight line with gradient and offset, the gradient and/or offset are determined as a function of the valve overlap surface. Preferably, the gradient and/or the offset are also determined as a function of the position of the valve overlap surface. The position of the valve overlap surface can be determined by the interval between the center of gravity of the valve overlap surface and a reference crankshaft angle. This improves the control of a combustion engine in motor vehicles with a gas exchange control (for example, with variable cam shaft rotation and/or cam shaft switchover to phaseless change of the valve control time and/or the valve stroke) with a view to accuracy and flexibility.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: December 30, 2003
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Gert Rekewitz, Gerd Kraemer, Georg Meder, Tim Beattie
  • Process and device for electronically controlling actuators of a combustion engine with variable gas exchange control
    Publication number: 20020004696
    Abstract: In a process and a device for electronically controlling actuators of a combustion engine with variable gas exchange control using a suction pipe pressure model where the connection between the cylinder filling level and the suction pipe pressure is described by a straight line with gradient and offset, the gradient and/or offset are determined as a function of the valve overlap surface. Preferably, the gradient and/or the offset are also determined as a function of the position of the valve overlap surface. The position of the valve overlap surface can be determined by the interval between the center of gravity of the valve overlap surface and a reference crankshaft angle. This improves the control of a combustion engine in motor vehicles with a gas exchange control (for example, with variable cam shaft rotation and/or cam shaft switchover to phaseless change of the valve control time and/or the valve stroke) with a view to accuracy and flexibility.
    Type: Application
    Filed: April 30, 2001
    Publication date: January 10, 2002
    Inventors: Gert Rekewitz, Gerd Kraemer, Georg Meder, Tim Beattie