ELECTRONIC BRAKE SYSTEM AND METHOD FOR OPERATING THE SAME
First Claim
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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Accused Products
Abstract
An electronic brake system and a method for operating the same are disclosed. The electronic brake system includes a hydraulic-pressure supply device and a hydraulic-pressure control unit. The hydraulic-pressure supply device operates a hydraulic piston using an electric signal corresponding to a displacement of a brake pedal, and thus generates hydraulic pressure. The hydraulic-pressure control unit controls hydraulic pressure of a pressure medium supplied to individual wheel cylinders. The electronic brake system controls a plurality of valves mounted to the hydraulic-pressure control unit, and thus performs a normal operation mode, an abnormal operation mode, a regenerative braking mode, and an inspection mode using the valves.
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Citations
20 Claims
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1. An electronic brake system comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification