Patents by Inventor Elias Calva

Elias Calva 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: 20190190426
    Abstract: The invention relates to a method (300) and a device (170) for reducing mechanical loads in a powertrain (100). An electric machine (130) is provided as the drive assembly of the powertrain (100), and an inverter (110) is provided in order to output a multiphase output voltage for supplying the electric machine (130). The method (300) has the following steps: determining (320) the multiphase output voltage (UA) for operating the electric machine (130); adding (340) a specifiable voltage (VU) and the specified output voltage (UA); and outputting (350) the sum (SU) of the multiphase output voltage (UA) and the specifiable voltage (VU) in order to supply the electric machine (130).
    Type: Application
    Filed: June 14, 2017
    Publication date: June 20, 2019
    Applicant: Robert Bosch GmbH
    Inventors: Wolfgang Michael Bischof, Elena Tonkonog, Florian Draeger, Stefan Teusch, David Rychtarik, Elias Calva, Gunther Goetting, Stefan Mittank
  • Patent number: 9228546
    Abstract: A method for actuating an element (22) in the air supply tract (29) of an internal combustion engine (19), characterized in that the element (22) is actuated such that it opens the air supply tract (29) before the pinion (10) engages into the toothed ring (16) of the internal combustion engine (19).
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: January 5, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Elias Calva, Matthias Cwik, Ewald Mauritz
  • Patent number: 9206753
    Abstract: The invention relates to a method for restarting an internal combustion engine, in which a first cylinder (ZYL1) has a low air level and a second cylinder (ZYL2) has a high air level, and wherein a predefined speed threshold value (ns) is selected as a function of said air levels. A method for the restart is selected and carried out as a function of a comparison of the determined speed (n) of the internal combustion engine with the predefined speed threshold value (ns).
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: December 8, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Elias Calva, Karthik Rai, Norbert Mueller, Ruediger Weiss, Manfred Dietrich
  • Patent number: 8904985
    Abstract: In a method for starting an internal combustion engine (60) having multiple combustion chambers (62, 64, 66, 68), wherein said internal combustion engine (60) has a starting system (50) and is operated using a start-stop function, and wherein said starting system (50) is actuated after a stop phase in operation of said internal combustion engine (60) to restart said internal combustion engine (60), a combustion chamber (62, 64, 66, 68) to be ignited first of the multiple combustion chambers (62, 64, 66, 68) is determined upon a restart of the internal combustion engine (60), and after a first ignition of the combustion chamber (62, 64, 66, 68) to be ignited first, speed data for the internal combustion engine (60) are detected, and a starter release of the starting system (50) is caused if the detected speed data meet a predetermined starter release criterion.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: December 9, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Ruediger Weiss, Jean-Marc Tonye Djon, Jochen Laubender, Manfred Dietrich, Elias Calva, Karsten Kroepke
  • Publication number: 20130179054
    Abstract: The invention relates to a method for restarting an internal combustion engine, in which a first cylinder (ZYL1) has a low air level and a second cylinder (ZYL2) has a high air level, and wherein a predefined speed threshold value (ns) is selected as a function of said air levels. A method for the restart is selected and carried out as a function of a comparison of the determined speed (n) of the internal combustion engine with the predefined speed threshold value (ns).
    Type: Application
    Filed: July 27, 2011
    Publication date: July 11, 2013
    Applicant: ROBERT BOSCH GmbH
    Inventors: Elias Calva, Karthik Rai, Norbert Mueller, Ruediger Weiss, Manfred Dietrich
  • Publication number: 20130166177
    Abstract: The invention relates to a method for stopping an internal combustion engine, wherein an amount of air which is supplied via an air metering device of the internal combustion engine, in particular a throttle flap (100), is reduced after a stopping order has been detected. According to the invention, the amount of air which is supplied via the air metering device of the internal combustion engine is again increased when the detected speed (n) of the internal combustion engine falls below a predefinable speed threshold value (ns), wherein an intake cylinder (ZYL2) to which the amount of air is supplied does not enter any working cycle after the amount of supplied air has been increased.
    Type: Application
    Filed: July 27, 2011
    Publication date: June 27, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Elias Calva, Karthik Rai, Norbert Mueller, Ruediger Weiss, Manfred Dietrich
  • Publication number: 20110088647
    Abstract: In a method for starting an internal combustion engine (60) having multiple combustion chambers (62, 64, 66, 68), wherein said internal combustion engine (60) has a starting system (50) and is operated using a start-stop function, and wherein said starting system (50) is actuated after a stop phase in operation of said internal combustion engine (60) to restart said internal combustion engine (60), a combustion chamber (62, 64, 66, 68) to be ignited first of the multiple combustion chambers (62, 64, 66, 68) is determined upon a restart of the internal combustion engine (60), and after a first ignition of the combustion chamber (62, 64, 66, 68) to be ignited first, speed data for the internal combustion engine (60) are detected, and a starter release of the starting system (50) is caused if the detected speed data meet a predetermined starter release criterion.
    Type: Application
    Filed: November 11, 2008
    Publication date: April 21, 2011
    Applicant: Robert Bosch GMBH
    Inventors: Ruediger Weiss, Jean-Marc Tonye Djon, Jochen Laubender, Manfred Dietrich, Elias Calva, Karsten Kroepke
  • Patent number: 7685992
    Abstract: In a method for operating a direct-injection internal combustion engine, a position of at least one piston inside a cylinder in which the combustion engine is at a standstill is determined; and a starting cylinder into which fuel is injected first is selected for a start following the standstill. An instantaneous charge of the starting cylinder is determined as a function of a duration of the standstill of the combustion engine. A distance (d) between the piston of the starting cylinder and a specified position of the piston is calculated. A minimum distance of the piston of the selected cylinder is determined as a function of the instantaneous charge; and another cylinder is selected as starting cylinder if the distance (d) between the piston of the starting cylinder and the specified position is less than the minimum distance.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: March 30, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Ruediger Weiss, Andreas Schmidt, Jean-Marc Tonye Djon, Jochen Laubender, Manfred Dietrich, Elias Calva, Michael Drung, Karsten Kroepke
  • Publication number: 20090157285
    Abstract: In a method for operating a direct-injection internal combustion engine, a position of at least one piston inside a cylinder in which the combustion engine is at a standstill is determined; and a starting cylinder into which fuel is injected first is selected for a start following the standstill. An instantaneous charge of the starting cylinder is determined as a function of a duration of the standstill of the combustion engine. A distance (d) between the piston of the starting cylinder and a specified position of the piston is calculated. A minimum distance of the piston of the selected cylinder is determined as a function of the instantaneous charge; and another cylinder is selected as starting cylinder if the distance (d) between the piston of the starting cylinder and the specified position is less than the minimum distance.
    Type: Application
    Filed: November 11, 2008
    Publication date: June 18, 2009
    Inventors: Ruediger Weiss, Andreas Schmidt, Jean-Marc Tonye Djon, Jochen Laubender, Manfred Dietrich, Elias Calva, Michael Drung, Karsten Kroepke