| 摘要 |
The present invention provides an ESC integrated brake system including a main master cylinder that has a first chamber and a second chamber which generate oil pressure so as to attain a target brake pressure and are simultaneously pressurized by a single piston; a first control valve that is provided in a flow path which connects the first chamber of the main master cylinder to an oil reservoir and opens and closes a flow between the oil reservoir and the first chamber; a first check valve that is provided in a flow path which connects the second chamber of the main master cylinder to the oil reservoir and allows only a flow from the oil reservoir to the second chamber; a second control valve that is connected in parallel to the first check valve and opens and closes a flow between the oil reservoir and the second chamber; a sequence valve that is provided in a flow path which connects an oil pressure circuit transmitting the oil pressure to the first chamber of the main master cylinder and each wheel cylinder and opens and closes a flow between the first chamber and the oil pressure circuit; and a second check valve that is provided in a flow path which connects an oil pressure circuit transmitting the oil pressure to the second chamber of the main master cylinder and each wheel cylinder and allows only a flow from the second chamber to the oil pressure circuit, wherein the first chamber is larger in cross-sectional area than the second chamber. According to the present invention, brake response can be improved. |
