Patents by Inventor Joachim Wiltschka

Joachim Wiltschka 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: 20050085342
    Abstract: In a method for controlling a drive device in a motorized vehicle during driving off, a driving off process which is to be carried out at a particular time is detected based on sensed operational and driving states of the vehicle. In order to support the driver during the driving off process, the engine setpoint rotational speed is increased automatically and independently of the driver to a value which exceeds the idling setpoint rotational speed of the engine. The engine actual rotational speed is adjusted to the setpoint rotational speed by means of a rotational speed controller by additional injection of fuel.
    Type: Application
    Filed: September 19, 2002
    Publication date: April 21, 2005
    Inventor: Joachim Wiltschka
  • Patent number: 6631707
    Abstract: A device for recycling exhaust gases from an internal combustion engine via an exhaust gas line in its intake area is equipped with an exhaust gas valve that is positioned within a valve chamber and closes off or opens up the connection to a combustion chamber of an internal combustion engine. A valve actuating mechanism is located within the valve chamber. The valve chamber is equipped with at least one cooling channel.
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: October 14, 2003
    Assignee: DaimlerChrysler AG
    Inventors: Franz Bender, Jürgen Huter, Rüdiger Pfaff, Joachim Wiltschka
  • Patent number: 6581382
    Abstract: A method for controlling a supercharging device for an internal combustion engine includes controlling a variable (x) using different control characteristics in each of at least four sub-ranges defined by a gradient (dx/dt) of the variable to be controlled (x) and a difference (x) between the variable to be controlled (x) and a control variable (xs). An apparatus for controlling a supercharging device for an internal combustion engine includes a controller having a range of control that includes at least four sub-ranges devided in accordance with a gradient (dx/dt) of the variable to be controlled (x) and a difference (x) between the variable to be controlled (x) and a control variable (xs).
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: June 24, 2003
    Assignee: DaimlerChrysler AG
    Inventors: Siegfried Weber, Joachim Wiltschka
  • Publication number: 20020088228
    Abstract: A method for controlling a supercharging device for an internal combustion engine includes controlling a variable (x) using different control characteristics in each of at least four sub-ranges defined by a gradient (dx/dt) of the variable to be controlled (x) and a difference (x) between the variable to be controlled (x) and a control variable (xs). An apparatus for controlling a supercharging device for an internal combustion engine includes a controller having a range of control that includes at least four sub-ranges devided in accordance with a gradient (dx/dt) of the variable to be controlled (x) and a difference (x) between the variable to be controlled (x) and a control variable (xs).
    Type: Application
    Filed: December 14, 2001
    Publication date: July 11, 2002
    Applicant: DaimlerChrysler AG
    Inventors: Siegfried Weber, Joachim Wiltschka
  • Patent number: 6314737
    Abstract: An internal combustion engine having one or more parallel exhaust-driven turbochargers that each comprise an activatable delivery capacity adjusting unit for variable adjustment of the boost air delivery capacity with malfunction monitoring of each individual delivery capacity adjusting unit wherein, upon detection of a malfunction of a respective delivery capacity adjusting unit, a corresponding malfunction datum is emitted.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: November 13, 2001
    Assignee: Daimler Chrysler AG
    Inventors: Ulrich Springer, Joachim Wiltschka
  • Patent number: 6295817
    Abstract: A drive assembly for a vehicle with an internal-combustion engine for supplying driving energy, has an exhaust gas turbocharger which has a turbine and a compressor. The turbine is driven by exhaust gases of the internal-combustion engine, and the compressor is driven by the turbine. An air guiding system supplies fresh air to the compressor, in which the fresh air is compressed to form charge air. The air guiding system guides the charge air from the compressor to the internal-combustion engine, and the power of the internal-combustion engine is to be increased at low rotational speeds by an additional compressor which generates compressed fresh air which, as a function of the requirements, can be supplied to the air guiding system upstream of the internal-combustion engine. As the additional compressor, a compressor is used which is already present in the vehicle for other purposes.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: October 2, 2001
    Assignee: DaimlerChrysler AG
    Inventors: Joerg Abthoff, Ruediger Pfaff, Joachim Wiltschka
  • Patent number: 6044827
    Abstract: In an exhaust gas recirculation arrangement for an internal combustion engine with an air intake duct for supplying air to the engine, an exhaust gas recirculation pipe extending into the air intake duct for recirculation exhaust gas to the air intake duct and a disc valve arranged in the exhaust gas recirculation pipe for closing the exhaust gas recirculation pipe, the exhaust gas recirculation pipe has a pipe section which extends in the air intake duct in a downstream direction from the disc valve and has, at its downstream end, a nozzle-like discharge opening for discharging exhaust gas into the air intake duct.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: April 4, 2000
    Assignee: DaimlerChrysler AG
    Inventors: Rudiger Pfaff, Joachim Wiltschka, Franz Bender