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 an electrical signal that is output corresponding to a displacement of a brake pedal, and including a first pressure chamber provided at one side of the piston being 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 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;
a fifth hydraulic flow path configured to branch from the fourth hydraulic flow path and connected to the second hydraulic flow path;
a sixth hydraulic flow path configured to branch from the fourth hydraulic flow path and connected to 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 includes a hydraulic pressure supply device including a first pressure chamber provided at one side of a piston movably accommodated inside a cylinder block, and a second pressure chamber provided at other side of the piston, a first hydraulic flow path communicating with the first pressure chamber, second and third hydraulic flow paths branching from the first hydraulic flow path, a fourth hydraulic flow path communicating with the second pressure chamber, a fifth hydraulic flow path branching from the fourth hydraulic flow path and connected to the second hydraulic flow path, a sixth hydraulic flow path branching from the fourth hydraulic flow path and connected to the third hydraulic flow path, and first and second hydraulic circuit including flow paths branching from the second or third hydraulic flow path and connected to wheel cylinders.
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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 an electrical signal that is output corresponding to a displacement of a brake pedal, and including a first pressure chamber provided at one side of the piston being 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 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; a fifth hydraulic flow path configured to branch from the fourth hydraulic flow path and connected to the second hydraulic flow path; a sixth hydraulic flow path configured to branch from the fourth hydraulic flow path and connected to 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)
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15. An electric brake system comprising:
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a hydraulic pressure supply device including a motor configured to operate in response to an electrical signal that is output corresponding to a displacement of a brake pedal, a power conversion unit configured to convert a rotational force of the motor into a rectilinear movement, a cylinder block, a piston connected to the power conversion unit and movably accommodated inside the cylinder block, a first pressure chamber provided at one side of the piston 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 second hydraulic flow path configured to communicate with the first pressure chamber and provide hydraulic pressure generated at the first pressure chamber to the one or more wheel cylinders; a third hydraulic flow path configured to communicate with the first pressure chamber and provide the hydraulic pressure generated at the first pressure chamber to the one or more wheel cylinders; a fifth hydraulic flow path configured to communicate with the second pressure chamber, connected to the second hydraulic flow path, and configured to provide hydraulic pressure generated at the second pressure chamber to the one or more wheel cylinders; a sixth hydraulic flow path configured to communicate with the second pressure chamber, connected to the third hydraulic flow path, and configured to provide the hydraulic pressure generated at the second pressure chamber to the one or more wheel cylinders; a seventh hydraulic flow path configured to communicate the second hydraulic flow path with the third hydraulic flow path to deliver hydraulic pressure of the one or more wheel cylinders to the first pressure chamber; an eighth hydraulic flow path configured to communicate the seventh hydraulic flow path with the second hydraulic flow path or the third hydraulic flow path to deliver the hydraulic pressure of the one or more wheel cylinders to the first pressure chamber; a first control valve provided at the second hydraulic flow path to control an oil flow; a second control valve provided at the third hydraulic flow path to control an oil flow; a third control valve provided at the fifth hydraulic flow path to control an oil flow; a fifth control valve provided at the seventh hydraulic flow path or the eighth hydraulic flow path to control an oil flow; a first hydraulic circuit including first and second branching flow paths which branch from the first 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 second hydraulic flow path and are connected to two wheel cylinders, respectively; and an electronic control unit (ECU) configured to control an operation of the motor, the fifth control valve, and opening and closing of the first and second inlet valves and third and fourth inlet valves. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification