Patents by Inventor I-Jin Yang
I-Jin Yang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11932227Abstract: A brake driving apparatus includes a hydraulic valve block including a vent channel for discharging air to the outside, an electronic control device that includes an electrical component housing open in a direction of the vent channel of the hydraulic valve block and having a ventilation hole connected to an internal space and a filter attached to the electrical component housing to block the ventilation hole so that air can pass therethrough, and is supported by one side of the hydraulic valve block, and a vent sealing member that seals a space between the hydraulic valve block and the electronic control device and surrounds the vent channel, the ventilation hole, and the filter.Type: GrantFiled: March 14, 2023Date of Patent: March 19, 2024Assignee: HL MANDO CORPORATIONInventors: Chungjae Lee, I Jin Yang, Heejun Kim, Chanhui Lee
-
Publication number: 20230294648Abstract: A brake driving apparatus includes a hydraulic valve block including a vent channel for discharging air to the outside, an electronic control device that includes an electrical component housing open in a direction of the vent channel of the hydraulic valve block and having a ventilation hole connected to an internal space and a filter attached to the electrical component housing to block the ventilation hole so that air can pass therethrough, and is supported by one side of the hydraulic valve block, and a vent sealing member that seals a space between the hydraulic valve block and the electronic control device and surrounds the vent channel, the ventilation hole, and the filter.Type: ApplicationFiled: March 14, 2023Publication date: September 21, 2023Inventors: Chungjae LEE, I Jin YANG, Heejun KIM, Chanhui LEE
-
Publication number: 20230294656Abstract: The present disclosure relates to a hydraulic valve block and a brake driving device including the same. A hydraulic valve block of a brake driving device in which an electronic control unit is supported by one side and a motor unit controlled by the electronic control unit is supported by the other side is provided. The hydraulic valve block includes a block body in which a valve operated by an electric signal input from the electronic control unit and controlling the flow of brake oil is installed, a block through-hole formed on the block body to support the motor unit, a vent channel formed through the block body, and a first vent hole formed at one end of the vent channel and disposed above the center of the block through-hole on the other side of the block body by which the motor unit is supported.Type: ApplicationFiled: March 15, 2023Publication date: September 21, 2023Inventors: Chungjae LEE, I Jin YANG, Mingeun SONG, Heejun KIM
-
Patent number: 10421444Abstract: Disclosed is a brake system. The brake system includes a pulsation attenuation device configured to attenuate pressure pulsation of brake oil discharged from a pump, wherein the pulsation attenuation device includes a first damping device, wherein the first damping device includes: a first damping member inserted into a first bore in communication with an in-port through which brake oil is introduced and an out-port through which brake oil is discharged and having a hollow formed therein; a second damping member inserted into the hollow to form a damping space between the second damping member and an inner circumferential surface of the first damping member; and a sealing member coupled to the first damping member and configured to seal the first bore, wherein the damping space is formed by a plurality of grooves formed in the hollow.Type: GrantFiled: January 16, 2017Date of Patent: September 24, 2019Assignee: MANDO CORPORATIONInventors: I-Jin Yang, Young-Chae Her
-
Patent number: 9751511Abstract: An electric brake system includes a reservoir, a master cylinder including first and second hydraulic ports, a simulation device providing reaction force in response to foot force applied to a brake pedal, a hydraulic-pressure supply device, a hydraulic-pressure control unit, and an electronic control unit (ECU). The hydraulic-pressure supply device converts rotational force of a motor into rectilinear motion upon receiving an electric signal from the pedal displacement sensor, and moves a double-acting piston designed to perform reciprocating motion within a hydraulic cylinder. The double-acting piston moves in both directions to generate hydraulic pressure by pressing a first hydraulic chamber provided in one end thereof, and moves in another direction to generate hydraulic pressure by pressing a second hydraulic chamber provided in the other end thereof.Type: GrantFiled: December 8, 2015Date of Patent: September 5, 2017Assignee: MANDO CORPORATIONInventor: I-Jin Yang
-
Patent number: 9725081Abstract: An electronic brake system may include a hydraulic pressure supply device having a motor configured to be operated by receiving an electrical signal from the pedal displacement sensor when the brake pedal is operated, a gear pump configured to discharge and suction a hydraulic pressure depending on a rotational force of the motor, and a power transmission unit configured to deliver the rotational force of the motor to the gear pump; a hydraulic control unit having first and second hydraulic circuits configured to receive the hydraulic pressure by a force generated by the hydraulic pressure supply device to control hydraulic pressure flows delivered to wheel cylinders provided on wheels; and an electronic control unit configured to control the motor and valves based on hydraulic pressure information and pedal displacement information.Type: GrantFiled: January 25, 2016Date of Patent: August 8, 2017Assignee: MANDO CORPORATIONInventor: I-Jin Yang
-
Publication number: 20170217416Abstract: Disclosed is a brake system. The brake system includes a pulsation attenuation device configured to attenuate pressure pulsation of brake oil discharged from a pump, wherein the pulsation attenuation device includes a first damping device, wherein the first damping device includes: a first damping member inserted into a first bore in communication with an in-port through which brake oil is introduced and an out-port through which brake oil is discharged and having a hollow formed therein; a second damping member inserted into the hollow to form a damping space between the second damping member and an inner circumferential surface of the first damping member; and a sealing member coupled to the first damping member and configured to seal the first bore, wherein the damping space is formed by a plurality of grooves formed in the hollow.Type: ApplicationFiled: January 16, 2017Publication date: August 3, 2017Inventors: I-Jin YANG, Young-Chae HER
-
Patent number: 9714018Abstract: 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.Type: GrantFiled: February 23, 2016Date of Patent: July 25, 2017Assignee: MANDO CORPORATIONInventors: In-Wook Jeon, I-Jin Yang
-
Patent number: 9656651Abstract: An electronic brake system may be capable of providing a required hydraulic pressure continuously and constantly as well as a precise pressure control through a gear pump provided in a hydraulic pressure supply device. Also, the electronic brake system may be capable of minimizing a number of valves controlling hydraulic pressure flows to implement a simplified configuration and providing the braking by a pedal effort of a driver even when the brake system is abnormally operated.Type: GrantFiled: January 29, 2016Date of Patent: May 23, 2017Assignee: MANDO CORPORATIONInventor: I-Jin Yang
-
Patent number: 9643581Abstract: An electric brake system includes a reservoir, a master cylinder including first and second hydraulic ports, a simulation device providing reaction force in response to foot force applied to a brake pedal, a hydraulic-pressure supply device, a hydraulic-pressure control unit, and an electronic control unit (ECU). The hydraulic-pressure supply device converts rotational force of a motor into rectilinear motion upon receiving an electric signal from the pedal displacement sensor, and moves a double-acting piston designed to perform reciprocating motion within a hydraulic cylinder. The double-acting piston moves in both directions such that the first hydraulic chamber located at one side or the second hydraulic chamber located at the other side are pressed, resulting in formation of hydraulic pressure.Type: GrantFiled: December 8, 2015Date of Patent: May 9, 2017Assignee: MANDO CORPORATIONInventor: I-Jin Yang
-
Patent number: 9488256Abstract: A nut screw conveying device includes a nut and a screw to convert rotational movement into translational movement. In the nut screw conveying device, a plurality of different threads is spirally formed on an inner circumferential surface of the nut, and the screw is provided with a plurality of rotating media to be respectively engaged with the different threads.Type: GrantFiled: February 21, 2014Date of Patent: November 8, 2016Assignee: MANDO CORPORATIONInventors: Young-Song Lee, I-Jin Yang, Seong-Ho Choi
-
Publication number: 20160251008Abstract: Disclosed herein is a solenoid valve for a brake system capable of reducing noise and vibration caused during operation of the solenoid valve.Type: ApplicationFiled: February 23, 2016Publication date: September 1, 2016Applicant: MANDO CORPORATIONInventors: In-Wook JEON, I-Jin YANG
-
Publication number: 20160221560Abstract: An electronic brake system may be capable of providing a required hydraulic pressure continuously and constantly as well as a precise pressure control through a gear pump provided in a hydraulic pressure supply device. Also, the electronic brake system may be capable of minimizing a number of valves controlling hydraulic pressure flows to implement a simplified configuration and providing the braking by a pedal effort of a driver even when the brake system is abnormally operated.Type: ApplicationFiled: January 29, 2016Publication date: August 4, 2016Applicant: MANDO CORPORATIONInventor: I-Jin YANG
-
Publication number: 20160214591Abstract: An electronic brake system may include a hydraulic pressure supply device having a motor configured to be operated by receiving an electrical signal from the pedal displacement sensor when the brake pedal is operated, a gear pump configured to discharge and suction a hydraulic pressure depending on a rotational force of the motor, and a power transmission unit configured to deliver the rotational force of the motor to the gear pump; a hydraulic control unit having first and second hydraulic circuits configured to receive the hydraulic pressure by a force generated by the hydraulic pressure supply device to control hydraulic pressure flows delivered to wheel cylinders provided on wheels; and an electronic control unit configured to control the motor and valves based on hydraulic pressure information and pedal displacement information.Type: ApplicationFiled: January 25, 2016Publication date: July 28, 2016Applicant: MANDO CORPORATIONInventor: I-Jin Yang
-
Publication number: 20160159331Abstract: An electric brake system includes a reservoir, a master cylinder including first and second hydraulic ports, a simulation device providing reaction force in response to foot force applied to a brake pedal, a hydraulic-pressure supply device, a hydraulic-pressure control unit, and an electronic control unit (ECU). The hydraulic-pressure supply device converts rotational force of a motor into rectilinear motion upon receiving an electric signal from the pedal displacement sensor, and moves a double-acting piston designed to perform reciprocating motion within a hydraulic cylinder. The double-acting piston moves in both directions to generate hydraulic pressure by pressing a first hydraulic chamber provided in one end thereof, and moves in another direction to generate hydraulic pressure by pressing a second hydraulic chamber provided in the other end thereof.Type: ApplicationFiled: December 8, 2015Publication date: June 9, 2016Applicant: MANDO CORPORATIONInventor: I-Jin YANG
-
Publication number: 20160159332Abstract: An electric brake system includes a reservoir, a master cylinder including first and second hydraulic ports, a simulation device providing reaction force in response to foot force applied to a brake pedal, a hydraulic-pressure supply device, a hydraulic-pressure control unit, and an electronic control unit (ECU). The hydraulic-pressure supply device converts rotational force of a motor into rectilinear motion upon receiving an electric signal from the pedal displacement sensor, and moves a double-acting piston designed to perform reciprocating motion within a hydraulic cylinder. The double-acting piston moves in both directions such that the first hydraulic chamber located at one side or the second hydraulic chamber located at the other side are pressed, resulting in formation of hydraulic pressure.Type: ApplicationFiled: December 8, 2015Publication date: June 9, 2016Applicant: MANDO CORPORATIONInventor: I-Jin YANG
-
Patent number: 9221449Abstract: Disclosed herein is an electric brake system for a vehicle including a reservoir, a master cylinder, an input rod, and a pedal displacement sensor. The electric brake system includes a pressure supply unit to receive oil and to output an electrical signal through the pedal displacement sensor, a hydraulic control unit to perform braking of a wheel, first and second switching valves connected to a channel connecting the pressure supply unit to the hydraulic control unit, a simulator connected to the master cylinder, and an electronic control unit to control the motor and the valves. The pressure supply unit includes a pressure chamber, a hydraulic piston arranged in the pressure chamber, a hydraulic spring to elastically support the hydraulic piston, the motor to generate rotational force, and a ball-screw member to convert rotational motion of the motor into rectilinear motion. The hydraulic piston is connected to the screw.Type: GrantFiled: October 31, 2013Date of Patent: December 29, 2015Assignee: MANDO CORPORATIONInventors: I Jin Yang, Seong Ho Choi
-
Patent number: 9193342Abstract: Disclosed is an electronic control brake system for vehicles which suppresses residual frictional force generated due to contact between pads and a disc. The electronic control brake system for vehicles includes a master cylinder, wheel brakes, each of which includes a caliper device including a disc and advancing and retracting a pair of pads pressing the disc to exhibit braking force by brake hydraulic pressure transmitted from the master cylinder, plural NO and NC type solenoid valves, low pressure accumulators, pumps and a motor pressurizing a fluid stored in the low pressure accumulators to discharge the fluid to the wheel brakes or the master cylinder, and a section between the plural solenoid valves and the low pressure accumulator is are formed as a closed circuit section, and the pump is driven to move a part of the fluid in the closed circuit section to the outlet of the pump.Type: GrantFiled: March 8, 2013Date of Patent: November 24, 2015Assignee: MANDO CORPORATIONInventors: Hee Jun Kim, I Jin Yang
-
Patent number: 9139183Abstract: Disclosed is an integrated electronic hydraulic brake system including an actuator having a master cylinder and a pedal simulator, an electronic stability control (ESC), and a hydraulic power unit (HPU) which are configured as a single unit. The integrated electronic hydraulic brake system may include an integrated hydraulic control unit and a power source unit, wherein the power source unit is separately provided to isolate the operational noise, and the integrated hydraulic control unit and the power source unit are connected to each other via an external pipe.Type: GrantFiled: March 12, 2013Date of Patent: September 22, 2015Assignee: MANDO CORPORATIONInventors: Yong Kap Kim, I Jin Yang, Seong Ho Choi
-
Patent number: 9108611Abstract: Disclosed herein is an electric brake system for a vehicle including a reservoir, an input rod, and a pedal displacement sensor to sense a displacement of a brake pedal. The electric brake system includes a pressure supply unit connected to the reservoir and a hydraulic channel and to output an electrical signal through the pedal displacement sensor, a hydraulic control unit provided with a first circuit and a second circuit, a shut-off valve to control the hydraulic pressure transferred to a wheel cylinder, a switching valve connected to a channel connecting the pressure supply unit to the hydraulic control unit, a compliance unit installed in a channel connected to the shut-off valve and the switching valve and including a compliance chamber, a piston and an elastic member, a simulator connected to the master cylinder to provide reaction force, and an electronic control unit to control the motor and the valves.Type: GrantFiled: October 31, 2013Date of Patent: August 18, 2015Assignee: MANDO CORPORATIONInventors: I Jin Yang, Seong Ho Choi