Hyundai Motor Company

Samsung Display Co., Ltd.

Kia Motors Corporation

Samsung Electronics Co., Ltd.

Kia Corporation

Seoul National University

The Ohio State University

Jung-Suk Han

Jong-Hee Na

Kang-Hyun Kim

Jae-Seob Chung

Hoi-Sik Moon

Tae-Jong Jun

Chang-Hyun Lim

Hyeok-Jun Kwon

Chang-Jin Oh

Joo-Young Lee

Jong-Seo Lee

Tae-Kwang Eom

Woo-jin Jung

Seong-Sik Shin

Jae-Seok Choi

Soo-Lin Kim

Woo-Jin Jung

Jun-Il Park

Jooyoung Lee

Jongseo Lee

Hoisik Moon

Hyungwoo Yim

Juneyoung Lee

Min-Kyu Han

Ji-Eun Jang

Hak-Mo Choi

Woo-Young Lee

Min-Yup Chae

Ji-Hye Choi

Shim-Ho Yi

Do-Gyoon Kim

Go-Eun Cha

Kyong-Duck Park

Hyung-Woo Yim

Woo-Young Cheon

Hyeokjun Kwon

Kyongduck Park

Min-yup Chae

A method for detecting damage to a bearing of an engine using a knocking sensor includes a data storing step, which stores a vibration signal output from the knocking sensor in a data storing unit, a by-frequency amplitude calculating step, which performs Fast Fourier Transform (FFT) for the vibration signal and calculates an amplitude for each frequency, a detection frequency integrating step, which obtains a detection frequency integration value by adding all amplitudes of detection frequencies, a noise determining step, which determines whether the vibration signal is the vibration signal irrelevant to damage to the bearing by determining whether exclusion frequencies correspond to a preset condition, a counter increasing step, which increases a damage counter, when the detection frequency integration value is greater than a preset damage threshold, and a damage confirming step, which confirms damage to the bearing, when the damage counter equals or exceeds a preset confirmation counter.

System and method for detecting damage to bearing of engine using knocking sensor

The present disclosure relates to a method and a system capable of determining the cause of misfire if the misfire occurs due to the mechanical failure of an injector. The present disclosure senses whether the misfire of an engine occurs, determines whether the mechanical failure occurs in an injector of a cylinder in which the misfire occurs, if the misfire of the engine is sensed, and determines that the misfire of the engine occurs due to the injector, and stores the failure content of the injector in a maintenance code, if it is determined that the mechanical failure occurs in the injector.

Method and system for determining cause of misfire of engine

An engine synchronization method may include: detecting teeth numbers of crank teeth installed on a crankshaft based on a pulse signal generated from a crankshaft position sensor; calculating a tooth period between a falling edge and a next falling edge of the pulse signal generated from the crankshaft position sensor and detecting a missing tooth based on the calculated tooth period; determining whether the detected missing tooth is an actual missing tooth based on a tooth number detected at the time of detecting the missing tooth; and performing synchronization control of an engine when it is determined that the detected missing tooth is the actual missing tooth.

Engine synchronization system and control method thereof

A fuel injection control method of injecting fuel to a combustion chamber through an injector, the method may include performing, by a controller electrically-connected to the injector, a main injection configured of controlling the injector to inject the fuel in a target injection fuel amount; and performing, by the controller, a pre-energizing configured of driving the injector to inject the fuel in advance, before the performing of the main injection with a predetermined idle time interposed therebetween, wherein the performing of the pre-energizing is configured of magnetizing an injector coil of the injector by applying a current to the injector during a predetermined pre-energizing time, in which a flow rate of the fuel is prevented from being generated by the pre-energizing.

Fuel injection control apparatus and method for improving deviation of injector opening time

A method for updating a crank position tooth number in a crank position sensor signal obtained from a crankshaft position sensor of an engine of a vehicle includes: calculating, in platform software of an engine control unit (ECU), a pulse width of a crank position sensor signal, determining, in the platform software of the ECU, a forward rotation and a reverse rotation of an engine, and updating, in the platform software of the ECU, the crank position tooth number.

Method for updating crank position sensor signal in vehicle engine

A method for engine start control based on a failsafe logic includes performing, by an engine control unit, calculated information failsafe control for performing miscalculation verification for a submodule start angle of a submodule using a start angle for fuel injection and ignition of an engine as a driver start angle of an injector driver.

Method for engine start control based on fail safe logic and a vehicle having same

A fuel injection control method of injecting fuel to a combustion chamber of an engine through an injector, the method may include pre-energizing to drive the injector during a predetermined pre-energizing time; and performing, by the controller, a main injection in which the injector is controlled by the controller to inject the fuel into the combustion chamber by a target injection amount, after the pre-energizing of the injector, wherein the pre-energizing magnetizes an injector coil of the injector in advance by applying the amount of current preventing the flow rate of the fuel from being generated by the pre-energizing, to the injector during the pre-energizing time.

The present invention relates to an integrated hybrid dental implant, and more particularly, to an integrated hybrid dental implant in which an opening portion formed at a screw body to enable a drug to be injected into an implantation site of the implant, and the mechanical stability is excellent despite the presence of the opening portion. The integrated hybrid dental implant according to the present invention enables a drug to be supplied to the area around the implantation site so as to induce bone regeneration into the implant after the implant has been placed at a bone-deficient site, has an additional mechanical strength when bone grows into the side openings and hollow inner channel, and allows the screw body to be integrally formed with the prosthesis section (i.e., one piece) to exhibit more excellent mechanical strength so that the implant can be useful as a dental implant.

Integrated hybrid dental implant

An ignition performance increasing method of an automobile may include inputting a crank position sensor signal to detect a rotational position of a crankshaft of an engine, generating an engine angle tick, acquiring an engine synchronization by determining a position of the crankshaft and a position of a cam, setting a sync task at a specified position, and performing fuel injection and ignition.

Ignition performance increasing method of automobile and automobile comprising the same

Disclosed is to a method for compensating noise of a crank sensor in a vehicle. When noise is applied to a crank sensor, information of a crank is predicted based on information input up to now without canceling engine synchronization. The method for compensating noise of a crank sensor includes: judging an engine stroke based on an ignition angle and, based on amount of compensation determined accordingly, creating virtual information of a crank, when judgment of fault of crank signal occurs discontinuously.

Method for compensating noise of crank sensor

A method for improving engine start performance of a vehicle performing engine synchronization at the time of the engine start may include performing a first synchronization task from an engine stop position stored when the engine stops in immediately previous traveling, and performing the first synchronization task when a crank signal of a crank sensor is first input to an engine position management (EPM) module.

Method for improving engine start performance of vehicle

A method for controlling starting of a vehicle upon a failure of a camshaft position sensor includes performing a fuel injection and ignition at a particular timing for starting an engine of the vehicle; measuring a battery voltage of the vehicle after the performing of the fuel injection and ignition for starting the engine; and when the battery voltage rises over a predetermined value, determining that the fuel injection and the ignition are performed at a normal timing.

Method for controlling starting of vehicle upon failure of camshaft position sensor

A display apparatus includes, a first pattern included in a first layer, a second pattern included in a second layer, a first test pattern including a plurality of first lines extending in a first direction and having a first width, and being spaced apart from each other, a second test pattern included in the second layer, including a central line and a plurality of second lines connected to the central line, wherein the plurality of second lines extend in the first direction have a second width, and are spaced apart from each other, and wherein at least one of the second lines is electrically connected to the first lines, and a shift tester configured to apply a test voltage to the central line to determine a degree by which the second pattern is shifted with respect to the first pattern by measuring the voltages at the first lines.

Display apparatus, method of driving the same and method of manufacturing the same

An engine control method for preventing an engine of a vehicle from stalling on a sloped road includes steps of: detecting whether a shifting lever is in a neutral stage (N-stage); measuring a vehicle speed and a slope angle of the sloped road, and calculating a load acting on a vehicle body on the sloped road; accelerating an engine a first time to increase an engine RPM so that an engine torque is larger than the load; and accelerating the engine a second time to move the vehicle when the shifting lever enters into a driving gear stage (D-stage).

Engine control method for preventing engine stall for vehicle on sloped road

A method of resuming multi-port injection using an intake stroke of an engine includes performing a first refueling with immediate start of ignition injection at the time when an injection abortion angle does not pass through an intake stroke, when injection is determined to be resumed after coasting by a controller. The method can minimize an engine RPM drop caused by the early generation of torque. The method improves fuel efficiency while being advantageous to calibration of the engine by setting the engine RPM to be low at the time of fuel cut-in.

Growing community of inventors

Hwaseong-si, South Korea

Jung-Suk Han