Rotary Type Patents (Class 303/34)
  • Patent number: 9944266
    Abstract: An electropneumatic brake control device controls a parking brake of a vehicle with a service brake and the parking brake. It includes an electromagnetic valve device which can be supplied with compressed air from a compressed air storage via a storage connection; a parking brake signal connection for inputting parking brake signals output by an electric parking brake signaling device; and an air quantity-boosting valve device which is pneumatically controlled by the electromagnetic valve device and which has a working outlet that can be connected to a first outlet connection for at least one spring applied brake cylinder. A control air line is provided between an outlet of the electromagnetic valve device and a pneumatic control inlet of the air quantity-boosting valve device.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: April 17, 2018
    Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
    Inventors: Andreas Leinung, Max Michalski
  • Patent number: 8297714
    Abstract: An electropneumatic brake control device for controlling an air-quantity-boosting valve device which controls a parking brake of a vehicle. A valve unit is provided that has a vent valve for venting a control input of the air-quantity-boosting valve device. The vent valve has three states. In a first state, the control input of the air-quantity-boosting valve device can be vented in a throttled manner by using an aperture. In a second state, the control input of the air-quantity-boosting valve device cannot be vented. In a third state, the control input of the air-quantity-boosting valve device can finally be vented in an unthrottled manner.
    Type: Grant
    Filed: July 4, 2007
    Date of Patent: October 30, 2012
    Assignee: WABCO GmbH
    Inventors: Uwe Bensch, Jörg Helmer, Bernd-Joachim Kiel, Wilfried Menze