Patents by Inventor Manfred Vohla

Manfred Vohla 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: 11371536
    Abstract: A device for controlling a required pressing force from a current collector of a vehicle on an overhead line, a method for using such a device and a power car having at least one such device, utilize a pilot control circuit, a working pressure control circuit and an adjustment device including a relay valve. The pilot control circuit adjusts a pilot control pressure and the relay valve uses a pilot control pressure to control a power pressure to provide a required working pressure for the pressing force of the current collector.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: June 28, 2022
    Inventors: Manfred Vohla, Kurt Haselsteiner
  • Patent number: 11351871
    Abstract: The invention relates to a device for controlling and regulating a required pressing force from a current collector of a vehicle on an overhead line, a method for using such a device and a vehicle having at least one such device, wherein the device has a base control circuit, an additional control circuit and a working pressure control circuit. The base control circuit has a base control circuit adjustment device for adjusting a base pressure from a provided power pressure and the additional control circuit has a control device for adjusting an additional pressure from a provided power pressure, wherein the base pressure and the additional pressure act together to form a working pressure and to provide the required pressing force.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: June 7, 2022
    Inventors: Manfred Vohla, Kurt Haselsteiner
  • Publication number: 20210129677
    Abstract: The invention relates to a device for controlling and regulating a required pressing force from a current collector of a vehicle on an overhead line, a method for using such a device and a vehicle having at least one such device, wherein the device has a base control circuit, an additional control circuit and a working pressure control circuit. The base control circuit has a base control circuit adjustment device for adjusting a base pressure from a provided power pressure and the additional control circuit has a control device for adjusting an additional pressure from a provided power pressure, wherein the base pressure and the additional pressure act together to form a working pressure and to provide the required pressing force.
    Type: Application
    Filed: June 28, 2018
    Publication date: May 6, 2021
    Inventors: Manfred VOHLA, Kurt HASELSTEINER
  • Publication number: 20200271135
    Abstract: A device for controlling a required pressing force from a current collector of a vehicle on an overhead line, a method for using such a device and a power car having at least one such device, utilize a pilot control circuit, a working pressure control circuit and an adjustment device including a relay valve. The pilot control circuit adjusts a pilot control pressure and the relay valve uses a pilot control pressure to control a power pressure to provide a required working pressure for the pressing force of the current collector.
    Type: Application
    Filed: June 28, 2018
    Publication date: August 27, 2020
    Inventors: Manfred VOHLA, Kurt HASELSTEINER
  • Publication number: 20200238834
    Abstract: The invention relates to a device comprising a sensor device for detecting a current operating state of an electrically conductive connection or a contact between a movable and a stationary part of an electric current supply, e.g. a contact between an overhead line and a current collector, in order to control a contact force. The invention also relates to a method using such a device.
    Type: Application
    Filed: October 9, 2018
    Publication date: July 30, 2020
    Inventors: Andreas SCHUNKE, Manfred VOHLA
  • Patent number: 7523813
    Abstract: A brake application device for vehicles, in particular rail vehicles, which comprises a wear adjuster that is configured as a brake actuator with a screw drive, having a threaded spindle and a nut that can be screwed onto said spindle as the screw parts. At least one of the screw parts is electrically actuated for wear adjustment.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: April 28, 2009
    Assignee: Knorr-Bremse Systeme für Schienenfahrzeuge GmbH
    Inventors: Erich Fuderer, Peter Wolfsteiner, Thomas Wagner, Manfred Vohla
  • Patent number: 7438163
    Abstract: The invention relates to a brake application device for vehicles, in particular rail vehicles, comprising a unit for emergency release and a unit for auxiliary release. The release units are integrated into a combined device for emergency and auxiliary release of the brakes. The combined device is electrically actuated by a common drive unit.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: October 21, 2008
    Assignee: Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH
    Inventors: Erich Fuderer, Peter Wolfsteiner, Ulf Friesen, Manfred Vohla
  • Patent number: 7419035
    Abstract: A brake application device for vehicles, especially for rail vehicles, comprising a wear-adjusting device which is embodied in a brake actuator and comprises a helical gear which is provided with a threaded spindle and a nut as screw connection parts, said nut being screwed onto said threaded spindle. One of the screw connection parts of the helical gear is electrically driven in order to adjust the wear of the brakes and the other screw connection part of the helical gear for the emergency release and/or auxiliary release of the brakes.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: September 2, 2008
    Assignee: Knorr-Bremse Systeme für Schienenfahreuge GmbH
    Inventors: Erich Fuderer, Peter Wolfsteiner, Thomas Wagner, Manfred Vohla, Josef Staltmeir, Ulf Friesen
  • Patent number: 7413061
    Abstract: A method and a device for controlling an electrically actuated wear adjuster of a brake application device for vehicles, in particular rail vehicles. Said method comprises the following steps: a) determination of an actual application stroke of brake linings against an allocated brake disc or brake drum during service braking, in accordance with at least one measured brake application path that is traversed by the brake linings and with a measured braking force value that is allocated to said brake application path; b) comparison of the actual application stroke with a desired brake application stroke or a desired application stroke tolerance range and if the actual application stroke deviates from said stroke or range: calculation of an adjustment path from said deviation; c) electronic control of the wear adjuster in accordance with the calculated adjustment path.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: August 19, 2008
    Assignee: Knorr-Bremse Systeme für Schienenfahrzeuge GmbH
    Inventors: Thomas Wagner, Thomas Burkhart, Ulf Friesen, Manfred Vohla, Josef Staltmeir
  • Publication number: 20060219486
    Abstract: A method and a device for controlling an electrically actuated wear adjuster of a brake application device for vehicles, in particular rail vehicles. Said method comprises the following steps: a) determination of an actual application stroke of brake linings against an allocated brake disc or brake drum during service braking, in accordance with at least one measured brake application path that is traversed by the brake linings and with a measured braking force value that is allocated to said brake application path; b) comparison of the actual application stroke with a desired brake application stroke or a desired application stroke tolerance range and if the actual application stroke deviates from said stroke or range: calculation of an adjustment path from said deviation; c) electronic control of the wear adjuster in accordance with the calculated adjustment path.
    Type: Application
    Filed: March 31, 2003
    Publication date: October 5, 2006
    Inventors: Thomas Wagner, Thomas Burkhart, Ulf Friesen, Manfred Vohla, Josef Staltmeir
  • Publication number: 20060070830
    Abstract: A brake application device for vehicles, in particular rail vehicles, which comprises a wear adjuster that is configured as a brake actuator with a screw drive, having a threaded spindle and a nut that can be screwed onto said spindle as the screw parts. At least one of the screw parts is electrically actuated for wear adjustment.
    Type: Application
    Filed: March 31, 2003
    Publication date: April 6, 2006
    Inventors: Erich Fuderer, Peter Wolfsteiner, Thomas Wagner, Manfred Vohla
  • Patent number: 6991301
    Abstract: The invention relates to a brake system for a railway vehicle. Said brake system comprises a main air reservoir line which is fed by an air compressor unit. Every bogie truck is provided with at least one compressed-air line which is connected to the main air reservoir line either directly or via a stop valve, a non-return valve and a compressed-air reservoir. The compressed-air line feeds, for example, the service brake valves for impinging the brakes of the bogie truck or a control unit for the spring-loaded brake and/or other control units for other auxiliary components. The service brake valves and/or the spring-loaded brake and/or other auxiliary components are controlled via at least one local, electronic brake control unit.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: January 31, 2006
    Assignee: Knorr-Bremse Systeme fuer Schienenfahrzeuge GmbH
    Inventors: Stefan Aurich, Ulrich Kleeman, Peter Waldmann, Peter Firsching, Manfred Vohla
  • Publication number: 20050173974
    Abstract: The invention relates to a brake application device for vehicles, in particular rail vehicles, comprising a unit for emergency release and a unit for auxiliary release. The release units are integrated into a combined device for emergency and auxiliary release of the brakes. The combined device is electrically actuated by a common drive unit.
    Type: Application
    Filed: March 31, 2003
    Publication date: August 11, 2005
    Inventors: Erich Fuderer, Peter Wolfsteiner, Ulf Friesen, Manfred Vohla
  • Publication number: 20050155825
    Abstract: A brake application device for vehicles, especially for rail vehicles, comprising a wear-adjusting device which is embodied in a brake actuator and comprises a helical gear which is provided with a threaded spindle and a nut as screw connection parts, said nut being screwed onto said threaded spindle. One of the screw connection parts of the helical gear is electrically driven in order to adjust the wear of the brakes and the other screw connection part of the helical gear for the emergency release and/or auxiliary release of the brakes.
    Type: Application
    Filed: March 31, 2003
    Publication date: July 21, 2005
    Inventors: Erich Fuderer, Peter Wolfsteiner, Thomas Wagner, Manfred Vohla, Josef Staltmeir, Ulf Friesen
  • Patent number: 6840354
    Abstract: The invention relates to a brake actuator, especially for a rail vehicle brake, comprising a service brake unit with a brake force generator for applying and/or releasing the brake, an accumulator brake unit with an energy accumulator device for accumulating and delivering energy for applying the brake as an operative emergency brake and/or as a parking brake, and a force conversion device for converting the energy that is provided by the brake force generator and/or the energy accumulator device into a brake application movement. The invention provides that the brake actuator has an additional energy accumulator device for accumulating and delivering energy for applying and/or releasing the brake. The additional energy accumulator device and the brake force generator can be designed in such a way that the force required of the brake force generator during a braking operation in order to generate a defined brake application force level that is greater than zero but less than the maximum brake force is zero.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: January 11, 2005
    Assignee: Knorr-Bremse Systeme für Schienenfahrzeuge GmbH
    Inventors: Richard Grundwürmer, Josef Staltmeir, Manfred Vohla
  • Publication number: 20040079598
    Abstract: The invention relates to a brake actuator, especially for a rail vehicle brake, comprising a service brake unit with a brake force generator (24) for applying and/or releasing the brake, an accumulator brake unit with an energy accumulator device (10) for accumulating and delivering energy for applying the brake as an operative emergency brake and/or as a parking brake, and a force conversion device (100) for converting the energy that is provided by the brake force generator and/or the energy accumulator device (10) into a brake application movement. The invention provides that the brake actuator has an additional energy accumulator device (12) for accumulating and delivering energy for applying and/or releasing the brake.
    Type: Application
    Filed: September 23, 2003
    Publication date: April 29, 2004
    Inventors: Richard Grundwurmer, Josef Stalmeir, Manfred Vohla
  • Publication number: 20040046442
    Abstract: The invention relates to a brake system for a railway vehicle. Said brake system comprises a main air reservoir line which is fed by an air compressor unit. Every bogie truck is provided with at least one compressed-air line which is connected to the main air reservoir line either directly or via a stop valve, a non-return valve and a compressed-air reservoir. The compressed-air line feeds, for example, the service brake valves for impinging the brakes of the bogie truck or a control unit for the spring-loaded brake and/or other control units for other auxiliary components. The service brake valves and/or the spring-loaded brake and/or other auxiliary components are controlled via at least one local, electronic brake control unit.
    Type: Application
    Filed: August 22, 2003
    Publication date: March 11, 2004
    Applicant: Knorr-Bremse System fur Schienenfahrzeuge GmbH
    Inventors: Stefan Aurich, Ulrich Kleeman, Peter Waldmann, Peter Firsching, Manfred Vohla
  • Patent number: 6669308
    Abstract: The invention relates to a brake system (100) for a railway vehicle (1). Said brake system comprises a main air reservoir line which is fed by an air compressor unit (22). Every bogie truck (3) is provided with at least one compressed-air line which is connected to the main air reservoir line either directly or via a stop valve, a non-return valve and a compressed-air reservoir. The compressed-air line feeds, for example, the service brake valves for impinging the brakes of the bogie truck (3) or a control unit for the spring-loaded brake and/or other control units for other auxiliary components. The service brake valves and/or the spring-loaded brake and/or other auxiliary components are controlled via at least one local, electronic brake control unit (31).
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: December 30, 2003
    Assignee: Knorr-Bremse Systeme für Schienenfahrzeuge GmbH
    Inventors: Stefan Aurich, Ulrich Kleeman, Peter Waldmann, Peter Firsching, Manfred Vohla
  • Patent number: 6666305
    Abstract: The invention relates to a brake application device for a motor vehicle brake, in particular to a brake application device for a rail vehicle brake and preferably to a brake application device for a rail vehicle disc brake, comprising a braking force generator for applying and/or releasing the vehicle brake and a braking force converter for converting the energy delivered by the braking force generator into a brake application motion. The brake application device is characterised in that the braking force converter is configured in such a way that the force which is to be exerted by the braking force generator during braking, in order to generate a defined brake application force which is greater than zero and less than the maximum brake force, measures zero.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: December 23, 2003
    Assignee: Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH
    Inventor: Manfred Vohla