Patents by Inventor Wolfgang Schuller

Wolfgang Schuller 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: 11892092
    Abstract: In a hydraulic unit, which is for a hydraulic brake system, that has a hydraulic block and at least one valve device, the valve device includes a hydraulic cartridge with a valve seat and with a movable closing body for blocking and opening the valve seat, and a magnet assembly with a magnet coil for generating a magnetic force for moving the closing body. The magnet assembly is integrated into the hydraulic block, and the valve device has a permanent magnet in order to assist the movement of the closing body by means of magnetic force.
    Type: Grant
    Filed: February 22, 2023
    Date of Patent: February 6, 2024
    Assignee: Robert Bosch GmbH
    Inventors: Harald Speer, Edgar Kurz, Wolfgang Schuller
  • Publication number: 20230192045
    Abstract: In a hydraulic unit, which is for a hydraulic brake system, that has a hydraulic block and at least one valve device, the valve device includes a hydraulic cartridge with a valve seat and with a movable closing body for blocking and opening the valve seat, and a magnet assembly with a magnet coil for generating a magnetic force for moving the closing body. The magnet assembly is integrated into the hydraulic block, and the valve device has a permanent magnet in order to assist the movement of the closing body by means of magnetic force.
    Type: Application
    Filed: February 22, 2023
    Publication date: June 22, 2023
    Inventors: Harald Speer, Edgar Kurz, Wolfgang Schuller
  • Patent number: 11680619
    Abstract: A brake system damping device includes a first chamber on which hydraulic pressure is to be applied, a second chamber with a compressible medium located therein, and a first separating element configured to separate the first and second chambers. The damping device further includes a third chamber with a compressible medium located therein and a second separating element configured to separate the second and third chambers. The second and third chambers are connected in a medium-conducting manner via a passage in the second separating element. The first separating element is configured to move a closure element to close the passage when the hydraulic pressure in the first chamber has reached a predefined pressure value. The first and second separating elements form an assembly in which the first and second separating elements extend along an axis and the first separating element is covered radially on the outside by an envelope surface.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: June 20, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Edgar Kurz, Wolfgang Schuller
  • Patent number: 11565674
    Abstract: A hydraulic brake system for a vehicle includes a master brake cylinder, a hydraulic unit, and multiple wheel brakes. The hydraulic unit Ha at least one brake circuit for modulating the braking pressure in the wheel brakes. At least one wheel brake is paired with a bistable solenoid valve, which is looped into the corresponding fluid channel directly upstream of the paired wheel brake and which enables the braking pressure in the paired wheel brake to be modulated in a de-energized open position and locks the current braking pressure in the paired wheel brake in a de-energized closed position, wherein a volume equalization device which comprises a connectable accumulator opens into the corresponding fluid channel between the bistable solenoid valve and the paired wheel brake.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: January 31, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Frank Baehrle-Miller, Klaus Landesfeind, Klaus-Dieter Nijakowski, Edith Mannherz, Hubertus Wienken, Christoph Brand, Edgar Kurz, Wolfgang Schuller
  • Patent number: 11491962
    Abstract: A hydraulic braking system for a vehicle includes a master brake cylinder, a hydraulic unit and a plurality of wheel brakes, the hydraulic unit including at least one brake circuit for brake pressure modulation in the wheel brakes. A bistable solenoid valve is associated with at least one wheel brake, which valve is looped into the corresponding fluid channel, immediately upstream of the associated wheel brake, and in a de-energized open position enables brake pressure modulation in the associated wheel brake, and in a de-energized closed position seals a current brake pressure in the associated wheel brake, wherein a hydraulic force brought about by the sealed-in brake pressure acts in a seat-opening manner in the corresponding bistable solenoid valve.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: November 8, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Wolf Stahr, Massimiliano Ambrosi, Michael Eisenlauer, Edgar Kurz, Wolfgang Schuller
  • Patent number: 11441624
    Abstract: A brake system damping device includes a first chamber on which hydraulic pressure is to be applied, a second chamber with a compressible medium located therein, and a first separating element configured to separate the first and second chambers. The damping device further includes a third chamber with a compressible medium located therein and a second separating element configured to separate the second and third chambers. The second and third chambers are connected in a medium-conducting manner via a passage in the second separating element. The first separating element is configured to move a closure element to close the passage when the hydraulic pressure in the first chamber has reached a predefined pressure value. The third chamber is formed by the second separating element and a cover. The second separating element is retained on the cover by an interference fit in a fluid-impervious manner.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: September 13, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Edgar Kurz, Wolfgang Schuller
  • Patent number: 11434963
    Abstract: A brake system damping device includes a first space, a second space, a third space, a first separating element, a second separating element, a closure element, and a plug-type element. The first space is configured to have hydraulic pressure applied thereto. A compressible medium is situated in the second space and the third space. The first separating element separates the first space from the second space, and the second separating element separates the second space from the third space. The second space is connected in medium-conducting fashion to the third space by a passage formed in the second separating element. The closure element is configured to be moved with the first separating element so as to close the passage in a movement direction as soon as the hydraulic pressure has reached a predefined pressure value in the first space. The plug-type element is arranged in the passage.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: September 6, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Edgar Kurz, Wolfgang Schuller
  • Patent number: 11391333
    Abstract: A brake system damping device includes a first chamber to which hydraulic pressure is applied, a second chamber in which a compressible medium is located, a first separating element separating the first chamber from the second chamber, a third chamber in which a compressible medium is located, and a second separating element separating the second chamber from the third chamber. The second chamber is connected to the third chamber in a medium-conducting manner by an outlet formed in the second separating element, and a closing element by means of which the outlet can be closed in a movement direction as soon as the hydraulic pressure in the first chamber has reached a predefined pressure value. The outlet is formed on its side facing the second chamber with at least one outlet opening, the cross-sectional area of which is oriented substantially in the movement direction of the closing element.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: July 19, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Edgar Kurz, Wolfgang Schuller
  • Patent number: 11383686
    Abstract: A bistable solenoid valve for a hydraulic brake system, includes a guide sleeve, in which an upper and a lower non-moving pole core are arranged fixedly and a closing element is arranged movably, wherein the closing element penetrates into a valve seat during a closing movement and lifts up from the valve seat during an opening movement. The closing element is connected fixedly to a permanent magnet, wherein the permanent magnet is positioned between the lower and the upper pole core. A coil group is positioned around the guide sleeve and substantially encloses the guide sleeve. The coil group includes at least two coils, wherein the coil group is configured in such a way that an actuation of a movement of the closing element takes place by means of an activation of the at least two coils.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: July 12, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Wolf Stahr, Klaus Landesfeind, Massimiliano Ambrosi, Michael Eisenlauer, Edgar Kurz, Wolfgang Schuller
  • Patent number: 11365774
    Abstract: A brake-system damping device includes a first chamber, to which hydraulic pressure is to be applied, a second chamber, in which there is a compressible medium, and a first separating element for separating the first chamber from the second chamber. The brake-system damping device includes a third chamber, in which there is a compressible medium, and a second separating element for separating the second chamber from the third chamber. The second chamber is connected, for medium conduction, to the third chamber by means of a passage formed in the second separating element. A closure element is to be moved with the first separating element, by means of which closure element the passage is to be closed as soon as the hydraulic pressure has reached predefined pressure value in the first chamber.
    Type: Grant
    Filed: May 11, 2019
    Date of Patent: June 21, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Yakup Navruz, Edgar Kurz, Wolfgang Schuller, Holger Kurz
  • Patent number: 11351973
    Abstract: A bistable solenoid valve for a hydraulic brake system has a guide sleeve in which an upper immovable pole core is fixedly arranged and a closing element is displaceably arranged. The closing element is forced into a valve seat during a closing movement and lifts off from the valve seat during an opening movement, and is fixedly connected to a magnet assembly. An actuation of the movement of the closing element is performed by the magnet assembly via a coil positioned around and substantially surrounding the guide sleeve. A lower immovable pole core is fixedly arranged in the guide sleeve and the magnet assembly is positioned between the lower and the upper pole core.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: June 7, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Massimiliano Ambrosi, Edgar Kurz, Wolf Stahr, Wolfgang Schuller, Klaus Landesfeind, Michael Eisenlauer
  • Patent number: 11283324
    Abstract: A drive device for a hydraulic pump of a braking system for a motor vehicle includes a housing, a rotor, a rotor shaft mounted in the housing and supporting the rotor, and a commutator arranged in the housing. The commutator includes at least one commutator brush held by a brush holder. The commutator brush cooperates with a commutator ring arranged on the rotor shaft in a non-rotatable manner. The brush holder includes a sealing ring assigned to the commutator which is arranged coaxially to the rotor shaft and interacts with the rotor shaft in a sealing manner.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: March 22, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Edgar Kurz, Juergen Haecker, Massimiliano Ambrosi, Michael Eisenlauer, Wolfgang Schuller
  • Patent number: 11221051
    Abstract: A brake system damping device includes a first space to which hydraulic pressure is to be applied, a second space in which a compressible medium is situated, and a first separation element configured to separate the first space from the second space. The brake system damping device further includes a third space in which a compressible medium is situated and a second separation element configured the second space from the third space. The second space is connected in medium-conducting terms to the third space by a passage configured in the second separation element. The third space and the second separation element having the passage thereof are configured by an integral component.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: January 11, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Massimiliano Ambrosi, Edgar Kurz, Wolfgang Schuller
  • Publication number: 20210331654
    Abstract: A bistable solenoid valve for a hydraulic brake system, includes a guide sleeve, in which an upper and a lower non-moving pole core are arranged fixedly and a closing element is arranged movably, wherein the closing element penetrates into a valve seat during a closing movement and lifts up from the valve seat during an opening movement. The closing element is connected fixedly to a permanent magnet, wherein the permanent magnet is positioned between the lower and the upper pole core. A coil group is positioned around the guide sleeve and substantially encloses the guide sleeve. The coil group includes at least two coils, wherein the coil group is configured in such a way that an actuation of a movement of the closing element takes place by means of an activation of the at least two coils.
    Type: Application
    Filed: June 27, 2018
    Publication date: October 28, 2021
    Inventors: Wolf Stahr, Klaus Landesfeind, Massimiliano Ambrosi, Michael Eisenlauer, Edgar Kurz, Wolfgang Schuller
  • Publication number: 20210269002
    Abstract: A brake-system damping device includes a first chamber, to which hydraulic pressure is to be applied, a second chamber, in which there is a compressible medium, and a first separating element for separating the first chamber from the second chamber. The brake-system damping device includes a third chamber, in which there is a compressible medium, and a second separating element for separating the second chamber from the third chamber. The second chamber is connected, for medium conduction, to the third chamber by means of a passage formed in the second separating element. A closure element is to be moved with the first separating element, by means of which closure element the passage is to be closed as soon as the hydraulic pressure has reached predefined pressure value in the first chamber.
    Type: Application
    Filed: May 11, 2019
    Publication date: September 2, 2021
    Inventors: Yakup Navruz, Edgar Kurz, Wolfgang Schuller, Holger Kurz
  • Publication number: 20210162975
    Abstract: A hydraulic braking system for a vehicle includes a master brake cylinder, a hydraulic unit and a plurality of wheel brakes, the hydraulic unit including at least one brake circuit for brake pressure modulation in the wheel brakes. A bistable solenoid valve is associated with at least one wheel brake, which valve is looped into the corresponding fluid channel, immediately upstream of the associated wheel brake, and in a de-energized open position enables brake pressure modulation in the associated wheel brake, and in a de-energized closed position seals a current brake pressure in the associated wheel brake, wherein a hydraulic force brought about by the sealed-in brake pressure acts in a seat-opening manner in the corresponding bistable solenoid valve.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 3, 2021
    Inventors: Wolf Stahr, Massimiliano Ambrosi, Michael Eisenlauer, Edgar Kurz, Wolfgang Schuller
  • Publication number: 20210078554
    Abstract: A hydraulic brake system for a vehicle includes a master brake cylinder, a hydraulic unit, and multiple wheel brakes. The hydraulic unit Ha at least one brake circuit for modulating the braking pressure in the wheel brakes. At least one wheel brake is paired with a bistable solenoid valve, which is looped into the corresponding fluid channel directly upstream of the paired wheel brake and which enables the braking pressure in the paired wheel brake to be modulated in a de-energized open position and locks the current braking pressure in the paired wheel brake in a de-energized closed position, wherein a volume equalization device which comprises a connectable accumulator opens into the corresponding fluid channel between the bistable solenoid valve and the paired wheel brake.
    Type: Application
    Filed: December 7, 2018
    Publication date: March 18, 2021
    Inventors: Frank Baehrle-Miller, Klaus Landesfeind, Klaus-Dieter Nijakowski, Edith Mannherz, Hubertus Wienken, Christoph Brand, Edgar Kurz, Wolfgang Schuller
  • Publication number: 20210054890
    Abstract: A brake system damping device includes a first space, a second space, a third space, a first separating element, a second separating element, a closure element, and a plug-type element. The first space is configured to have hydraulic pressure applied thereto. A compressible medium is situated in the second space and the third space. The first separating element separates the first space from the second space, and the second separating element separates the second space from the third space. The second space is connected in medium-conducting fashion to the third space by a passage formed in the second separating element. The closure element is configured to be moved with the first separating element so as to close the passage in a movement direction as soon as the hydraulic pressure has reached a predefined pressure value in the first space. The plug-type element is arranged in the passage.
    Type: Application
    Filed: August 17, 2020
    Publication date: February 25, 2021
    Inventors: Edgar Kurz, Wolfgang Schuller
  • Publication number: 20210018053
    Abstract: A brake system damping device includes a first chamber to which hydraulic pressure is applied, a second chamber in which a compressible medium is located, a first separating element separating the first chamber from the second chamber, a third chamber in which a compressible medium is located, and a second separating element separating the second chamber from the third chamber. The second chamber is connected to the third chamber in a medium-conducting manner by an outlet formed in the second separating element, and a closing element by means of which the outlet can be closed in a movement direction as soon as the hydraulic pressure in the first chamber has reached a predefined pressure value. The outlet is formed on its side facing the second chamber with at least one outlet opening, the cross-sectional area of which is oriented substantially in the movement direction of the closing element.
    Type: Application
    Filed: June 19, 2020
    Publication date: January 21, 2021
    Inventors: Edgar Kurz, Wolfgang Schuller
  • Patent number: 10864898
    Abstract: A brake system for a motor vehicle includes a master cylinder, an actuatable switchover valve, and at least one parking brake device. The master cylinder includes at least one brake circuit which has at least one hydraulically actuatable wheel brake. The actuatable switchover valve is configured to separate and connect the brake circuit from/to the master cylinder. The parking brake device is paired with the wheel brake and configured as a hydraulically actuatable parking brake device. For this purpose, the parking brake device has a hydraulic pressure store which is configured to be operatively connected to the brake circuit. The switchover valve is configured to be closed in at least one first de-energized state in order to separate the brake circuit from the master cylinder.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: December 15, 2020
    Assignee: Robert Bosch GmbH
    Inventor: Wolfgang Schuller