Patents by Inventor Julian Ewald

Julian Ewald 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: 11872966
    Abstract: An electromechanical or electromagnetic wheel brake cylinder for a braking system, embodied with at least one hydraulic braking circuit, of a vehicle, including a pressure chamber that is embodied in the electromechanical or electromagnetic wheel brake cylinder and is delimited by a displaceable first brake piston of the electromechanical or electromagnetic wheel brake cylinder, and is linkable to a sub-volume of the at least one hydraulic braking circuit of the braking system in such a way that the first brake piston is displaceable by way of a pressure that is increased at least in in the respective sub-volume. The electromechanical or electromagnetic wheel brake cylinder encompasses an electromechanical or electromagnetic actuator and a second brake piston which is displaceable by operation of the electromechanical or electromagnetic actuator.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: January 16, 2024
    Assignee: ROBE IT BOSCH GMBH
    Inventors: Thomas Schmidt, Dieter Blattert, Julian Ewald
  • Patent number: 11273816
    Abstract: In a method, which can be performed by a control device for carrying out an emergency braking and/or panic braking of a vehicle, in a first phase, a setpoint vehicle deceleration requested instantaneously by a driver is ignored and a motor of an electromechanical brake booster is operated in a predefined high power mode such that a main brake cylinder pressure in the main brake cylinder is increased; in an intermediate phase, the main brake cylinder pressure is reduced to a setpoint pressure by pumping brake fluid from the main brake cylinder into the at least one wheel brake cylinder and the motor force of the motor is reduced to a setpoint force; and the brake pressure increase in the at least one wheel brake cylinder is continued during a second phase only if the driver requests instantaneously a setpoint vehicle deceleration.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: March 15, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Bernhard Maier, Friedrich Stelter, Jochen Koretz, Julian Ewald, Manfred Gerdes, Marko Flinner, Markus Weigel, Thomas Schmidt
  • Publication number: 20210162976
    Abstract: An electromechanical or electromagnetic wheel brake cylinder for a braking system, embodied with at least one hydraulic braking circuit, of a vehicle, including a pressure chamber that is embodied in the electromechanical or electromagnetic wheel brake cylinder and is delimited by a displaceable first brake piston of the electromechanical or electromagnetic wheel brake cylinder, and is linkable to a sub-volume of the at least one hydraulic braking circuit of the braking system in such a way that the first brake piston is displaceable by way of a pressure that is increased at least in in the respective sub-volume. The electromechanical or electromagnetic wheel brake cylinder encompasses an electromechanical or electromagnetic actuator and a second brake piston which is displaceable by operation of the electromechanical or electromagnetic actuator.
    Type: Application
    Filed: March 7, 2019
    Publication date: June 3, 2021
    Inventors: Thomas Schmidt, Dieter Blattert, Julian Ewald
  • Publication number: 20210146903
    Abstract: In a method, which can be performed by a control device for carrying out an emergency braking and/or panic braking of a vehicle, in a first phase, a setpoint vehicle deceleration requested instantaneously by a driver is ignored and a motor of an electromechanical brake booster is operated in a predefined high power mode such that a main brake cylinder pressure in the main brake cylinder is increased; in an intermediate phase, the main brake cylinder pressure is reduced to a setpoint pressure by pumping brake fluid from the main brake cylinder into the at least one wheel brake cylinder and the motor force of the motor is reduced to a setpoint force; and the brake pressure increase in the at least one wheel brake cylinder is continued during a second phase only if the driver requests instantaneously a setpoint vehicle deceleration.
    Type: Application
    Filed: April 12, 2018
    Publication date: May 20, 2021
    Applicant: Robert Bosch GmbH
    Inventors: Bernhard Maier, Friedrich Stelter, Jochen Koretz, Julian Ewald, Manfred Gerdes, Marko Flinner, Markus Weigel, Thomas Schmidt
  • Patent number: 9114787
    Abstract: A pressure generating device generates a hydraulic pressure as a result of a tensile or compressive load. The device has connections, one of which can be rigidly connected to a frame by way of a mechanism for introducing a mechanical tensile or compressive load, a pressure cylinder and a piston unit extending at least partially and flexibly in the pressure cylinder and bounding a hydraulic chamber filled with hydraulic fluid jointly with the pressure cylinder. The chamber has a simple and inexpensive construction. The connections are connected to the pressure cylinder or the piston unit by way of a coupling device that is configured such that the same hydraulic chamber has pressure applied thereto under tensile load and under compressive load.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: August 25, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Julian Ewald, Matthias Liermann, Christian Stammen
  • Publication number: 20120124990
    Abstract: A pressure generating device generates a hydraulic pressure as a result of a tensile or compressive load. The device has connections, one of which can be rigidly connected to a frame by way of a mechanism for introducing a mechanical tensile or compressive load, a pressure cylinder and a piston unit extending at least partially and flexibly in the pressure cylinder and bounding a hydraulic chamber filled with hydraulic fluid jointly with the pressure cylinder. The chamber has a simple and inexpensive construction. The connections are connected to the pressure cylinder or the piston unit by way of a coupling device that is configured such that the same hydraulic chamber has pressure applied thereto under tensile load and under compressive load.
    Type: Application
    Filed: July 7, 2010
    Publication date: May 24, 2012
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Julian Ewald, Matthias Liermann, Christian Stammen