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公开(公告)号：US10173659B2
公开(公告)日：2019-01-08
申请号：US15355065
申请日：2016-11-18
Applicant: MANDO CORPORATION
Inventor： Gi-Yung Kim , Seong-Ho Choi , Dong-Yo Ryu , Yong-Kap Kim , Weon-Chan Ko , Hyun-Ho Kim , Eun-Seong Lim , In-Wook Jeon , Yeong-Sik Kim , Byong-Hoo Cheong
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.
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公开(公告)号：US10040438B2
公开(公告)日：2018-08-07
申请号：US15415789
申请日：2017-01-25
Applicant: MANDO CORPORATION
Inventor： Eun-Seong Lim , Hyun-Ho Kim , Yeong-Sik Kim , In-Wook Jeon , Yong-Kap Kim , Dong-Yo Ryu , Seong-Ho Choi , Gi-Yung Kim , Byeong-Hoo Cheong , Weon-Chan Ko
Abstract: An electric brake system includes 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 and a second pressure chamber, a first hydraulic flow path configured to communicate with the first pressure chamber, a second hydraulic flow path configured to communicate with the first pressure chamber, a third hydraulic flow path configured to communicate with the second pressure chamber, a fourth hydraulic flow path branching from the third hydraulic flow path and connected to the first hydraulic flow path, a fifth hydraulic flow path branching from the third hydraulic flow path and connected to the second hydraulic flow path.
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公开(公告)号：US09981645B2
公开(公告)日：2018-05-29
申请号：US15298163
申请日：2016-10-19
Applicant: MANDO CORPORATION
Inventor： Hyun-Ho Kim , In-Wook Jeon
IPC: B60T13/68 , B60T7/04 , B60T8/40 , B60T8/34 , B60T11/232 , B60T11/236 , B60T13/14 , B60T13/66 , B60T13/74
CPC classification number: B60T13/686 , B60T7/042 , B60T8/348 , B60T8/4081 , B60T11/232 , B60T11/236 , B60T13/146 , B60T13/662 , B60T13/745 , B60T2270/82
Abstract: An electric brake system is disclosed. The electric brake system comprises a hydraulic pressure supply device configured to generate hydraulic pressure using a hydraulic piston which is activated by means of an electrical signal that is output corresponding to a displacement of a brake pedal, and including a cylinder block, first and second hydraulic pistons movably accommodated inside the cylinder block, and first and second pressure chambers comparted by the first and second hydraulic pistons, a first hydraulic circuit configured to connect a first hydraulic flow path communicating with the first pressure chamber to one or more wheel cylinders, a second hydraulic circuit configured to connect a second hydraulic flow path communicating with the second pressure chamber to one or more wheel cylinders, and a balance valve configured to open and close a balance flow path connecting the first hydraulic flow path to the second hydraulic flow path.
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公开(公告)号：US09827966B2
公开(公告)日：2017-11-28
申请号：US14981920
申请日：2015-12-29
Applicant: MANDO CORPORATION
Inventor： In-Wook Jeon , Seong-Ho Choi
IPC: B60T13/68 , B60T13/20 , B60T13/14 , B60T13/16 , B60T13/58 , B60T7/04 , B60T13/66 , B60T8/40 , B60T8/34
CPC classification number: B60T13/686 , B60T7/042 , B60T8/348 , B60T8/4081 , B60T13/147 , B60T13/20 , B60T13/662
Abstract: An electronic brake system may be capable of performing braking operation according to a pedal effort of a driver even when the brake system operates abnormally as well as simplifying a configuration thereof by minimizing the number of valves for controlling a flow of oil pressure and precisely controlling pressure therein.
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公开(公告)号：US09714018B2
公开(公告)日：2017-07-25
申请号：US15051663
申请日：2016-02-23
Applicant: MANDO CORPORATION
Inventor： In-Wook Jeon , I-Jin Yang
CPC classification number: B60T13/686 , B60T8/363 , B60T13/146 , B60T13/662 , B60T15/36 , F16K31/0655 , F16K31/0689 , H01F7/088 , H01F2007/086
Abstract: A solenoid valve for a brake system capable of reducing noise and vibration caused during operation of the solenoid valve. The solenoid valve includes a valve core, a valve dome, an armature, and a plunger. An upper surface of the armature is recessed to form an insertion recess, a buffer member buffers an impact between the armature and the valve dome, the buffer member includes a support part between the upper surface of the armature and the valve dome and buffers and supports the armature, and an insertion part connects to the support part and inserted into the insertion recess.
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Patent Agency Ranking
公开(公告)号：US10648580B2
公开(公告)日：2020-05-12
申请号：US15367956
申请日：2016-12-02
Applicant: MANDO CORPORATION
Inventor： In-Wook Jeon
Abstract: Disclosed herein is a check valve. The check valve installed in a bore of a modulator block having an inlet path and an outlet path and configured to control oil to flow in one direction, the check valve comprising: a valve housing installed in the bore, including an inlet and an outlet configured to respectively communicate with the inlet path and the outlet path, and having an open upper portion; a cap member configured to seal the open upper portion of the valve housing and fixed to the modulator block; a plunger provided to move forward or backward in the valve housing and configured to open or close an internal path between the inlet and the outlet; and a spring provided between the cap member and the plunger and configured to press the plunger to close the internal path.
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公开(公告)号：US10407040B2
公开(公告)日：2019-09-10
申请号：US14884741
申请日：2015-10-15
Applicant: MANDO CORPORATION
Inventor： In-Wook Jeon
Abstract: A hydraulic unit of an electronic control brake system is disclosed. The hydraulic unit of the electronic control brake system includes a modulator block having a plurality of accommodating bores in which a plurality of valves and pressure sensors coupled to a master cylinder to control braking hydraulic pressure supplied towards vehicle wheels are installed. Passages connecting between the accommodating bores are formed in the modulator block, and the passages are formed to be divided into two layers.
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公开(公告)号：US10377359B2
公开(公告)日：2019-08-13
申请号：US15489738
申请日：2017-04-18
Applicant: MANDO CORPORATION
Inventor： In-Wook Jeon
Abstract: An electric brake system is disclosed. The electric brake system controlling a hydraulic pressure delivered to a wheel cylinder provided at each of wheels according to a pedal effort of a brake pedal, includes a reservoir configured to store oil; a master cylinder including first and second hydraulic ports, each of which is connected to two wheels, and configured to generate a hydraulic pressure by the pedal effort of the brake pedal; a pedal simulator configured to provide a reaction force of the brake pedal by being connected to the master cylinder, and connected to the reservoir; a simulation valve installed at an oil flow path connecting the pedal simulator to the reservoir, or at an oil flow path connecting the master cylinder to the pedal simulator; a bypass flow path branching off from the oil flow path and connected to the reservoir; and a relief valve provided at the bypass flow path and configured to enable oil to flow when the simulation valve operates abnormally.
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公开(公告)号：US10315639B2
公开(公告)日：2019-06-11
申请号：US15368464
申请日：2016-12-02
Applicant: MANDO CORPORATION
Inventor： Seong-Ho Choi , In-Wook Jeon , Hyun-Ho Kim
Abstract: A leakage inspecting method of an electric brake system, which includes a master cylinder connected to a reservoir, a simulation device having one side connected to the master cylinder to provide a reaction force according to the pedal effort of the brake pedal, a simulation valve provided at a flow path connected to the master cylinder or a flow path connected to the reservoir, a hydraulic pressure supply device operated by an electrical signal of a pedal displacement sensor sensing a displacement of the brake pedal and configured to generate hydraulic pressure, and a hydraulic pressure control unit, comprising: executing an inspection mode for inspecting for a leak of the simulation valve and a sealing member provided inside a chamber of the master cylinder by providing an inspection valve at a flow path connecting the master cylinder to the reservoir, wherein the inspection mode includes: (a1) closing a cut valve provided at a flow path connecting the master cylinder to the hydraulic pressure control unit when the inspection valve is open; (b1) pressurizing a piston disposed inside the master cylinder according to the pedal effort of the brake pedal and detecting whether pressure is formed through a pressure sensor; and (c1) determining that a leak does not exist when pressure detected through the pressure sensor satisfies a preset criterion.
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公开(公告)号：US10144401B2
公开(公告)日：2018-12-04
申请号：US15600650
申请日：2017-05-19
Applicant: MANDO CORPORATION
Inventor： Seong-Ho Choi , In-Wook Jeon
Abstract: According to the embodiment of the present disclosure, it provides an inspection valve installed at a flow path connecting a reservoir to a chamber of a master cylinder, comprising: a housing at which a bore is formed and having one side at which an inlet hole is formed; a plunger provided to be movable along the bore of the housing; a seat member configured to close one side of the bore and through which an outlet hole passes; and an elastic member having one side supported by the plunger and the other side supported by the seat member, wherein the plunger is provided to block the outlet hole when a hydraulic pressure flowing in through the inlet hole is greater than an elastic force of the elastic member.Also, according to the embodiment of the present disclosure, it provides an inspection valve installed at a bypass flow path connecting a front side of a check valve to a rear side thereof at a reservoir flow path connecting a reservoir to a master cylinder, comprising: a housing at which a bore is formed and having one side at which an inlet hole communicating with the master cylinder is formed; a plunger provided to be movable along the bore of the housing; a seat member configured to close one side of the bore and through which an outlet hole communicating with the reservoir passes; and an elastic member having one side supported by the plunger and the other side supported by the seat member, wherein the check valve is provided at the reservoir flow path and enables fluid to flow in a direction from the reservoir to the master cylinder, and the plunger is provided to block the outlet hole when a hydraulic pressure flowing in through the inlet hole is greater than an elastic force of the elastic member.
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