Electric brake system
First Claim
1. An electric brake system comprising:
- a hydraulic pressure supply device configured to generate hydraulic pressure using a piston which is operated by means of an electrical signal that is output corresponding to displacement of a brake pedal, and including a first pressure chamber provided at one side of the piston movably accommodated inside a cylinder block and connected to one or more wheel cylinders, and a second pressure chamber provided at the other side of the piston and connected to the one or more wheel cylinders;
a first hydraulic flow path coupled to the first pressure chamber, the first hydraulic flow path branched into a second hydraulic flow path and a third hydraulic flow path;
the second hydraulic flow path coupled to the first hydraulic flow path;
the third hydraulic flow path coupled to the first hydraulic flow path;
a fourth hydraulic flow path connecting between the second pressure chamber and the third hydraulic flow path;
a fifth hydraulic flow path connecting between the second hydraulic flow path and the third hydraulic flow path;
a first hydraulic circuit including first and second branching flow paths which branch from the second hydraulic flow path and are connected to two wheel cylinders, respectively; and
a second hydraulic circuit including third and fourth branching flow paths which branch from the third hydraulic flow path and are connected to two wheel cylinders, respectively.
2 Assignments
0 Petitions
Accused Products
Abstract
An electric brake system is disclosed. The electric brake system includes a hydraulic pressure supply device configured to generate hydraulic pressure using a piston which is operated by means of an electrical signal that is output corresponding to displacement of a brake pedal, and including a first pressure chamber provided at one side of the piston movably accommodated inside a cylinder block and connected to one or more wheel cylinders, and a second pressure chamber provided at the other side of the piston and connected to the one or more wheel cylinders, a first hydraulic flow path configured to communicate with the first pressure chamber, a second hydraulic flow path configured to branch from the first hydraulic flow path, a third hydraulic flow path configured to branch from the first hydraulic flow path, a fourth hydraulic flow path configured to communicate with the second pressure chamber and connected to the third hydraulic flow path, a fifth hydraulic flow path configured to communicate the second hydraulic flow path with the third hydraulic flow path, a first hydraulic circuit including first and second branching flow paths which branch from the second hydraulic flow path and are connected to two wheel cylinders, respectively, and a second hydraulic circuit including third and fourth branching flow paths which branch from the third hydraulic flow path and are connected to two wheel cylinders, respectively.
27 Citations
20 Claims
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1. An electric brake system comprising:
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a hydraulic pressure supply device configured to generate hydraulic pressure using a piston which is operated by means of an electrical signal that is output corresponding to displacement of a brake pedal, and including a first pressure chamber provided at one side of the piston movably accommodated inside a cylinder block and connected to one or more wheel cylinders, and a second pressure chamber provided at the other side of the piston and connected to the one or more wheel cylinders; a first hydraulic flow path coupled to the first pressure chamber, the first hydraulic flow path branched into a second hydraulic flow path and a third hydraulic flow path; the second hydraulic flow path coupled to the first hydraulic flow path; the third hydraulic flow path coupled to the first hydraulic flow path; a fourth hydraulic flow path connecting between the second pressure chamber and the third hydraulic flow path; a fifth hydraulic flow path connecting between the second hydraulic flow path and the third hydraulic flow path; a first hydraulic circuit including first and second branching flow paths which branch from the second hydraulic flow path and are connected to two wheel cylinders, respectively; and a second hydraulic circuit including third and fourth branching flow paths which branch from the third hydraulic flow path and are connected to two wheel cylinders, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An electric brake system comprising:
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a master cylinder at which first and second hydraulic ports are formed, connected to a reservoir storing oil therein, configured with one or more pistons, and configured to discharge oil according to a pedal effort of a brake pedal; a pedal displacement sensor configured to sense displacement of the brake pedal; a hydraulic pressure supply device configured to generate hydraulic pressure using a piston which is operated by means of an electrical signal that is output from the pedal displacement sensor, and including a first pressure chamber provided at one side of the piston movably accommodated inside a cylinder block and connected to one or more wheel cylinders, and a second pressure chamber provided at the other side of the piston and connected to one or more wheel cylinders; a first hydraulic flow path coupled to the first pressure chamber, the first hydraulic flow path branched into a second hydraulic flow path and a third hydraulic flow path; the second hydraulic flow path coupled to the first hydraulic flow path; the third hydraulic flow path coupled to the first hydraulic flow path; a fourth hydraulic flow path connecting between the second pressure chamber and the third hydraulic flow path; a fifth hydraulic flow path connecting between the second hydraulic flow path and the third hydraulic flow path; a first hydraulic circuit including first and second branching flow paths which branch from the second hydraulic flow path and are connected to two wheel cylinders, respectively, and first and second inlet valves configured to control the first and second branching flow paths, respectively; a second hydraulic circuit including third and fourth branching flow paths which branch from the third hydraulic flow path and are connected to two wheel cylinders, respectively; a first backup flow path configured to connect the first hydraulic port to the second hydraulic flow path; a second backup flow path configured to connect the second hydraulic port to the third hydraulic flow path; a first cut valve provided at the first backup flow path and configured to control an oil flow; a second cut valve provided at the second backup flow path and configured to control an oil flow; and a simulation device provided at a flow path branching from the first backup flow path, configured with a simulator valve provided at a flow path connecting a simulation chamber storing oil therein to the reservoir, and configured to provide a reaction force according to a pedal effort of the brake pedal. - View Dependent Claims (17, 18, 19, 20)
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Specification