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ELECTRONIC BRAKE SYSTEM AND METHOD FOR OPERATING THE SAME

  • US 20190100186A1
  • Filed: 09/27/2018
  • Published: 04/04/2019
  • Est. Priority Date: 09/29/2017
  • Status: Active Grant
First Claim
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1. An electronic brake system comprising:

  • a hydraulic-pressure supply device configured to generate a hydraulic pressure by operating a hydraulic piston using an electric signal that is output in response to a displacement of a brake pedal, as well as to include not only a first pressure chamber formed at one side of the hydraulic piston movably disposed in a cylinder block, but also a second pressure chamber formed at the other side of the hydraulic piston; and

    a hydraulic control unit configured to include not only a first hydraulic circuit to control a hydraulic pressure applied to two wheel cylinders, but also a second hydraulic circuit to control a hydraulic pressure applied to two other wheel cylinders,wherein the hydraulic control unit includes;

    a first hydraulic passage configured to communicate with the first pressure chamber;

    a second hydraulic passage branched from the first hydraulic passage;

    a third hydraulic passage connected to the second hydraulic circuit while being branched from the first hydraulic passage;

    a fourth hydraulic passage configured to communicate with the second pressure chamber;

    fifth and sixth hydraulic passages that are branched from an intermediate part of the fourth hydraulic passage and are then linked again to the fourth hydraulic passage;

    a seventh hydraulic passage configured to connect a second hydraulic passage to a third hydraulic passage; and

    an eighth hydraulic passage configured to connect both the second hydraulic passage and the fourth hydraulic passage to the first hydraulic circuit.

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