Patents by Inventor Seong Ho Choi
Seong Ho Choi 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).
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Patent number: 10906519Abstract: An electronic brake system and a method for operating the same are disclosed. The electronic brake system includes a hydraulic-pressure supply device and a hydraulic-pressure control unit. The hydraulic-pressure supply device operates a hydraulic piston using an electric signal corresponding to a displacement of a brake pedal, and thus generates hydraulic pressure. The hydraulic-pressure control unit controls hydraulic pressure of a pressure medium supplied to individual wheel cylinders. The electronic brake system controls a plurality of valves mounted to the hydraulic-pressure control unit, and thus performs a normal operation mode, an abnormal operation mode, a regenerative braking mode, and an inspection mode using the valves.Type: GrantFiled: September 22, 2018Date of Patent: February 2, 2021Assignee: MANDO CORPORATIONInventors: Hyojin Jeong, Seong Ho Choi
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Patent number: 10878266Abstract: A vehicle and a method for controlling the same are disclosed, which determine a region of interest (ROI) in a forward-view image based on braking information and steering information of the vehicle, and obtain driving assistance information from the ROI image. The vehicle includes an image acquisition part configured to acquire a forward-view image by capturing an image about a forward region of a vehicle, a steering information acquisition part configured to acquire steering information by detecting a steering direction and a steering angle of the vehicle, a braking information acquisition part configured to acquire braking information by detecting a braking or non-braking state and a braking deceleration of the vehicle, and a controller configured to determine a region of interest (ROI) within the forward-view image based on at least one of the steering information and the braking information of the vehicle.Type: GrantFiled: February 21, 2019Date of Patent: December 29, 2020Assignee: MANDO CORPORATIONInventors: Seong Ho Choi, Seung Hyun Roh
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Publication number: 20200398800Abstract: A vehicle control apparatus and a method for controlling the same are disclosed. The vehicle control apparatus includes an inputter, a determiner, and a controller. The inputter receives an automatic vehicle hold (AVH) switch operation signal from an AVH device, and receives a current vehicle movement value sensed by a sensing device and a current vehicle brake force value of a brake device that generates brake force in response to activation of the AVH device. The determiner determines whether the received AVH switch operation signal transitions from an ON state to an AVH entry state, determines whether vehicle movement occurs on the basis of the received current vehicle movement value during an AVH retention time in the AVH entry state, and determines that the current vehicle brake force value is in an abnormal state when vehicle movement occurs. The controller receives the current vehicle movement value and the current vehicle brake force value, and transmits a command for judgment to the determiner.Type: ApplicationFiled: August 31, 2020Publication date: December 24, 2020Inventors: Seyoung CHEON, Byunghak KWAK, Sukku KIM, Seong Ho CHOI, Jung Hun HAN
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Patent number: 10870418Abstract: An electronic brake system includes a master cylinder connected to a reservoir, including a master chamber and a master piston provided at the master chamber, and discharging the oil according to pedal effort of a brake pedal, a sensor measuring a displacement of the brake pedal, a pedal simulator providing a reaction force according to pedal effort of the brake pedal and including a simulator chamber connected to the master cylinder, a hydraulic actuator provided between the master cylinder and a wheel cylinder and controlling a hydraulic pressure flow delivered to the wheel cylinder, a first hydraulic pressure supply device operated by an electrical signal output by corresponding to the displacement of the brake pedal, and supplying a hydraulic pressure to the hydraulic actuator, and a second hydraulic pressure supply device provided between the reservoir and the master cylinder and providing a vibration pedal feel to the brake pedal.Type: GrantFiled: February 14, 2018Date of Patent: December 22, 2020Assignee: MANDO CORPORATIONInventors: Joo-Hee Son, Seong-Ho Choi
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Patent number: 10821951Abstract: An electronic brake system includes a master cylinder connected to a reservoir, the master cylinder including first and second master chambers and first and second pistons provided in the master chambers; a hydraulic pressure supply device activated by an electrical signal to generate a hydraulic pressure; a hydraulic pressure control unit configured to transfer, to a plurality of wheel cylinder provided in wheels, a hydraulic pressure discharged from the hydraulic pressure supply device; first and second backup flow paths configured to connect the first and second master chambers to the hydraulic pressure control unit; and first and second cut valves configured to selectively open and close the first and second backup flow paths, wherein one or both of the first backup flow path and the second backup flow path are connected to the first or second master chamber and any one of the plurality of wheel cylinders.Type: GrantFiled: March 26, 2018Date of Patent: November 3, 2020Assignee: MANDO CORPORATIONInventors: Hyun-Ho Kim, Seong-Ho Choi
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Patent number: 10759400Abstract: A vehicle control apparatus and a method for controlling the same are disclosed. The vehicle control apparatus includes an inputter, a determiner, and a controller. The inputter receives an automatic vehicle hold (AVH) switch operation signal from an AVH device, and receives a current vehicle movement value sensed by a sensing device and a current vehicle brake force value of a brake device that generates brake force in response to activation of the AVH device. The determiner determines whether the received AVH switch operation signal transitions from an ON state to an AVH entry state, determines whether vehicle movement occurs on the basis of the received current vehicle movement value during an AVH retention time in the AVH entry state, and determines that the current vehicle brake force value is in an abnormal state when vehicle movement occurs. The controller receives the current vehicle movement value and the current vehicle brake force value, and transmits a command for judgment to the determiner.Type: GrantFiled: May 31, 2018Date of Patent: September 1, 2020Assignee: MANDO CORPORATIONInventors: Seyoung Cheon, Byunghak Kwak, Sukku Kim, Seong Ho Choi, Jung Hun Han
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Patent number: 10752227Abstract: Disclosed is an electronic brake system including: a reservoir to store oil; a master cylinder connected to the reservoir and including first and second master chambers and first and second piston provided in the first and second master chambers, respectively, to discharge the oil according to an pedal effort of a brake pedal; a hydraulic pressure generating apparatus provided on at least one of a first reservoir passage connecting the reservoir and the first master chamber and a second reservoir passage connecting the reservoir and the second master chamber; a hydraulic pressure supply apparatus operated by an electrical signal to generate a hydraulic pressure and connected to the master cylinder; and a hydraulic pressure control unit transmitting alternatively the hydraulic pressure discharged from the hydraulic pressure generating apparatus or the hydraulic pressure supply apparatus to a wheel cylinder provided on each of four wheels.Type: GrantFiled: September 28, 2018Date of Patent: August 25, 2020Assignee: MANDO CORPORATIONInventors: Hee Chul Jung, Seong Ho Choi
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Patent number: 10696281Abstract: Disclosed herein are an electric brake system and an operating method thereof. The electric bake system includes a master cylinder discharging pressure medium according to a displacement of a brake pedal, a simulator providing a sense of pedal to a driver, a hydraulic supplier generating hydraulic pressure by operating a hydraulic piston in response to an electrical signal output by corresponding to the displacement of the brake pedal, and a hydraulic control unit controlling hydraulic pressure of the pressure medium supplied to each wheel cylinder. The electric brake system performs a normal operation mode having a low pressure mode and a high pressure mode, an abnormal operation mode and an inspection mode.Type: GrantFiled: September 21, 2018Date of Patent: June 30, 2020Assignee: MANDO CORPORATIONInventors: Hyojin Jeong, Seong Ho Choi
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Publication number: 20200151485Abstract: An apparatus of controlling a region of interest (ROI) in an image and a method for controlling the same are provided to determine a region of interest (ROI) in a forward-view image based on braking information and steering information of the vehicle, and obtain driving assistance information from the ROI image. The apparatus includes an image acquisition device configured to acquire a forward-view image by capturing an image about a forward region of a vehicle, a steering information acquisition device configured to acquire steering information by detecting a steering direction and a steering angle of the vehicle, a braking information acquisition device configured to acquire braking information by detecting a braking or non-braking state and a deceleration of the vehicle, and a controller configured to determine a region of interest (ROI) within the forward-view image based on at least one of the steering information or the braking information of the vehicle.Type: ApplicationFiled: December 30, 2019Publication date: May 14, 2020Inventors: Seong Ho Choi, Seung Hyun Roh
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Patent number: 10583819Abstract: Disclosed is an electronic brake system.Type: GrantFiled: May 23, 2018Date of Patent: March 10, 2020Assignee: MANDO CORPORATIONInventors: Hyunho Kim, Seong Ho Choi
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Publication number: 20200074208Abstract: A vehicle and a method for controlling the same are disclosed, which determine a region of interest (ROI) in a forward-view image based on braking information and steering information of the vehicle, and obtain driving assistance information from the ROI image. The vehicle includes an image acquisition part configured to acquire a forward-view image by capturing an image about a forward region of a vehicle, a steering information acquisition part configured to acquire steering information by detecting a steering direction and a steering angle of the vehicle, a braking information acquisition part configured to acquire braking information by detecting a braking or non-braking state and a braking deceleration of the vehicle, and a controller configured to determine a region of interest (ROI) within the forward-view image based on at least one of the steering information and the braking information of the vehicle.Type: ApplicationFiled: February 21, 2019Publication date: March 5, 2020Inventors: Seong Ho Choi, Seung Hyun Roh
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Publication number: 20190329749Abstract: An electronic brake system and a method for operating the same are disclosed. The electronic brake system includes an integrated master cylinder, a hydraulic-pressure supply device, and a hydraulic control unit. The integrated master cylinder allows a pressing medium to be discharged based on displacement of a brake pedal and at the same time provides proper pedal feel for the user. The hydraulic control unit controls hydraulic pressure of a pressing medium supplied to respective wheel cylinders. The electronic brake system operates in different ways according to a normal operation mode and an abnormal operation mode.Type: ApplicationFiled: April 26, 2019Publication date: October 31, 2019Inventors: Hyojin JEONG, Seong Ho Choi, Jin Seok Kim, Byung Ki Kim
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Publication number: 20190329751Abstract: An electronic brake system and a method for operating the same are disclosed. The electronic brake system includes an integrated master cylinder, a hydraulic-pressure supply device, and a hydraulic control unit. The integrated master cylinder allows a brake fluid to be discharged based on displacement of a brake pedal and at the same time provides proper pedal feel for the user. The hydraulic-pressure supply device generates hydraulic pressure by operating a hydraulic piston in response to an electrical signal that is output in response to displacement of the brake pedal. The hydraulic control unit controls hydraulic pressure of brake fluid supplied to respective wheel cylinders. The electronic brake system operates in different ways according to a normal operation mode and an abnormal operation mode.Type: ApplicationFiled: April 26, 2019Publication date: October 31, 2019Inventors: Hyojin JEONG, Seong Ho CHOI, Jin Seok KIM, Byung Ki KIM
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Publication number: 20190329750Abstract: Provided are an electronic brake system and a method of operating the same, capable of performing a normal operation mode and an abnormal operation mode by including an integrated master cylinder configured to discharge a pressurizing medium according to a displacement of a brake pedal while providing a driver with a pedal fee, a liquid pressure supply device configured to generate a liquid pressure by operating a hydraulic piston according to an electrical being output on the basis of the displacement of the brake pedal, and a hydraulic control unit configured to a liquid pressure of a pressurizing medium to be supplied to each wheel cylinder.Type: ApplicationFiled: April 26, 2019Publication date: October 31, 2019Inventors: Hyojin JEONG, Seong Ho CHOI, Jin Seok KIM, Byung Ki KIM
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Patent number: 10457261Abstract: An electronic brake system is disclosed.Type: GrantFiled: May 23, 2018Date of Patent: October 29, 2019Assignee: MANDO CORPORATIONInventors: In Wook Jeon, Seong Ho Choi
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Publication number: 20190302750Abstract: An equipment diagnosis system and method, which use abnormal data and normal data of equipment and accurately and effectively perform diagnosis on the equipment, are provided. The equipment diagnosis system includes a data acquisition unit to acquire time series data of equipment, a preprocessing unit convert the time series data into frequency data including a temporal component through a Fourier transform, a deep learning unit to perform deep learning through a convolution neural network (CNN) by using the frequency data, and a diagnosis unit to determine a state of the equipment to be a normal state or a breakdown state based on the deep learning.Type: ApplicationFiled: March 4, 2019Publication date: October 3, 2019Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Kyoung-whan OH, Ho-youl LEE, Won-ki PARK, Jong-hwi SEO, Young-il JANG, Ha-nock KWAK, Byoung-tak ZHANG, Seong-ho CHOI
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Patent number: 10364331Abstract: The present application relates to a composite electrolyte membrane and a method for manufacturing the same. The composite electrolyte membrane according to the present application includes: a poly(arylene ether sulfone) copolymer including the repeating unit represented by Chemical Formula 1 and the repeating unit represented by Chemical Formula 2; and a core-shell particle including an inorganic particle core and a basic organic polymer shell.Type: GrantFiled: June 12, 2015Date of Patent: July 30, 2019Assignees: LG CHEM, LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Seong Ho Choi, Jong-Chan Lee, Hyuk Kim, Doyoung Kim, Ji Hun Kim, Taeyun Ko, Bo-Kyung Jung, Kihyun Kim
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Patent number: 10315639Abstract: 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 unitType: GrantFiled: December 2, 2016Date of Patent: June 11, 2019Assignee: MANDO CORPORATIONInventors: Seong-Ho Choi, In-Wook Jeon, Hyun-Ho Kim
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Patent number: 10297852Abstract: The present specification provides a polymer electrolyte membrane, a membrane electrode assembly including the polymer electrolyte membrane, and a fuel cell including the membrane electrode assembly.Type: GrantFiled: November 26, 2014Date of Patent: May 21, 2019Assignee: LG CHEM, LTD.Inventors: Minkyu Min, Young Sun Park, Hyuk Kim, Seong Ho Choi, Sangwoo Lee, Doyoung Kim
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Patent number: 10286885Abstract: An electric brake system comprising: a master cylinder configured to a reservoir storing oil therein and configured to generate hydraulic pressure according to a pedal effort of a brake pedal; a cut valve installed at a backup flow path connecting the master cylinder to a wheel cylinder; a simulation device including a simulation chamber connected to the master cylinder at a front end of the cut valve to provide a reaction force according to the pedal effort of the brake pedal, a simulation valve provided at a flow path connecting the master cylinder to the simulation chamber; a hydraulic pressure supply device configured to operate in response to an electrical signal of a pedal displacement sensor sensing a displacement of the brake pedal, and a damping member provided at a flow path connecting the hydraulic pressure chamber to the front end of the cut valve, wherein the damping member delivers a pressure pulsation generated in the hydraulic pressure chamber to the brake pedal in an anti-lock brake system (AType: GrantFiled: December 2, 2016Date of Patent: May 14, 2019Assignee: MANDO CORPORATIONInventors: Seong-Ho Choi, In-Wook Jeon