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Master brake cylinder arrangement with actuation detection for a motor vehicle brake system

  • US 9,797,417 B2
  • Filed: 11/14/2013
  • Issued: 10/24/2017
  • Est. Priority Date: 11/16/2012
  • Status: Active Grant
First Claim
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1. A master brake cylinder arrangement with actuation detection for a motor vehicle braking system with at least one piston arrangement with a piston which is dislocatably guided in a cylinder bore in a cylinder housing, wherein the piston confines a pressure chamber with the cylinder bore which is fluidically coupled with a hydraulic brake circuit, and can be dislocated during a forward stroke from an initial position toward an actuated position along a dislocation axis which substantially coincides with a longitudinal axis of the cylinder bore, and is dislocated from the actuated position to the initial position during a back stroke, wherein a coupling element is assigned to the piston which is coupled for a common dislocation to a position detection rod which is dislocatably guided substantially in parallel to the first cylinder bore, wherein the position of the position detection rod is detectable with a position detection sensor attached to the cylinder housing,wherein the coupling element is lockable relative to the piston for a common stroke movement with the latter and after over-travelling of a predetermined distance of the stroke movement, the piston is further dislocatable relative to the coupling element.

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