Abstract: Provided are a silicon nitride film etching composition, a method of etching a silicon nitride film using the same, and a manufacturing method of a semiconductor device. Specifically, a silicon nitride film may be highly selectively etched as compared with a silicon oxide film, and when the composition is applied to an etching process at a high temperature and a semiconductor manufacturing process, not only no precipitate occurs but also anomalous growth in which the thickness of the silicon oxide film is rather increased does not occur, thereby minimizing defects and reliability reduction.

Abstract: Provided are a silicon nitride film etching composition, a method of etching a silicon nitride film using the same, and a manufacturing method of a semiconductor device. Specifically, a silicon nitride film may be stably etched with a high selection ratio relative to a silicon oxide film, and when the composition is applied to an etching process at a high temperature and a semiconductor manufacturing process, not only no precipitate occurs but also anomalous growth in which the thickness of the silicon oxide film is rather increased does not occur, thereby minimizing defects and reliability reduction.

Abstract: A separator assembly for a fuel cell and a fuel cell stack including the same, is uniformly capable of forming a surface pressure of a region where a reaction gas flows when a stack is stacked by adjusting a height and shape of a gasket line for each region in which the reaction gas flows.

Abstract: A method and a device for V2X communication channel estimation are disclosed. The V2X communication channel estimation according to an embodiment of the present disclosure may include calculating a first channel estimation value in a time-axis forward direction from a first midamble and a second channel estimation value in a time-axis backward direction from a second midamble located after the first midamble, based on a data pilot aided (DPA) channel estimation algorithm that uses a channel estimation value of a previous OFDM symbol to iteratively update a channel estimation value, and estimating, based on the first channel estimation value and the second channel estimation value, a final channel value of a specific OFDM symbol located between the first midamble and the second midamble.

Abstract: A mild hybrid vehicle controlling method, wherein the mild hybrid vehicle has a driver assistance module for detecting peripheral vehicle information and a mild hybrid starter & generator (MSHG) may comprises comparing, by a controller, the peripheral vehicle information with a predetermined reference value and deciding whether after-treatment regeneration control is performed or not according to a result of the comparison.

Abstract: A fire extinguishing system for an energy storage device having a battery rack for a battery module, the fire extinguishing system including a sensing unit configured to detect when a value of one or more of a temperature of the battery module, a voltage of the battery module, or smoke from the battery module is higher than a preset threshold value; and a fire extinguishing unit configured to provide a fire extinguishing agent to the battery module when the sensing unit detects that the value is higher than the preset threshold value, the fire extinguishing unit including a heat-sensitive member. The heat-sensitive member is positioned at a battery cell vent hole for a battery cell in the battery module. The heat-sensitive member is configured to allow the fire extinguishing agent into the vent hole by being melted when a temperature of the heat-sensitive member is higher than a predetermined temperature.

Abstract: A cup holder for a vehicle may include a holder body slidably coupled to a cup holder mounting portion in the vehicle, a finger elastically and pivotably mounted to the holder body, and configured to press and support a side surface of a cup inserted into the cup holder together with the holder body, a support connected to the holder body by a link such that the support is vertically movable in accordance with pivotal movement of the link, the support being configured to support a bottom portion of the cup, and a locking member disposed between the finger and the link, to lock the link, for prevention of pivotal movement of the link, or to unlock the link in linkage with pivotal operation of the finger.

Abstract: A motor-cooling apparatus is constructed such that coils constituting a stator are cooled using cooling fluid supplied from a first channel pipe and a second channel pipe, and the ends of the coils, which are difficult to sufficiently cool when cooling of the motor, are efficiently cooled, thereby ensuring the durability of the motor.

Abstract: A method of two-step variable valve lift (VVL) malfunction avoidance learning control may include: in a two-step VVL system which is operated with a main lift and a secondary lift, verifying, by an electronic control unit (ECU), an operation avoidance area based on locking of a lock pin of a cam follower ; performing VVL operation learning, in which a failure of occurrence of the second lift is determined on the basis of a locking failure of the cam follower due to an initially set value of the operation avoidance area; and reflecting the operation avoidance area to the two-step VVL system with a corrected set value which is obtained through the VVL operation learning.

Abstract: A method of two-step variable valve lift (VVL) operation learning control for a vehicle may include: applying, by a lift controller, a VVL control to an electric two-step VVL system; determining, by the lift controller, whether the vehicle is running in an electric vehicle (EV) mode; and when the vehicle is running in the EV mode, performing, by the lift controller, a learning time securing control of allowing a VVL operation learning to be performed by engine operating for an operation avoidance area and an operation avoidance time which are applied to a secondary lift of an exhaust valve.

Abstract: A cup holder for a vehicle may include a holder body slidably coupled to a cup holder mounting portion in the vehicle, a finger elastically and pivotably mounted to the holder body, and configured to press and support a side surface of a cup inserted into the cup holder together with the holder body, a support connected to the holder body by a link such that the support is vertically movable in accordance with pivotal movement of the link, the support being configured to support a bottom portion of the cup, and a locking member disposed between the finger and the link, to lock the link, for prevention of pivotal movement of the link, or to unlock the link in linkage with pivotal operation of the finger.

Abstract: The present disclosure relates to a system and a method for removing noxious gas from cleaning liquid discharged from an exhaust gas treatment apparatus and, more particularly, to a system and a method for removing noxious gas from cleaning liquid discharged from an exhaust gas treatment apparatus, which are capable of adjusting the discharge rate of the cleaning liquid in a noxious gas removal unit, which removes noxious gas remaining in a gaseous state in the cleaning liquid discharged from the exhaust gas treatment apparatus and discharges the cleaning liquid from which the noxious gas in the gaseous state has been removed, on the basis of a result of measurement of the level of the cleaning liquid in the noxious gas removal unit.

Abstract: A variable compression ratio-applied control system using an ADAS and a control method thereof are provided. The system includes a driver assist unit for measuring the distance and the relative speed with a preceding vehicle, and a compression ratio changing unit for changing a compression ratio during traveling, and a neutral control mode for blocking power transfer by a transmission during traveling is implemented, a compression ratio changing unit is operated by using the information acquired through the driver assist unit in a state where the neutral control mode has been implemented, and the compression ratio is changed during inertia traveling during which the neutral control mode has been implemented.

Abstract: The present disclosure relates to a system and a method for removing noxious gas from cleaning liquid discharged from an exhaust gas treatment apparatus and, more particularly, to a system and a method for removing noxious gas from cleaning liquid discharged from an exhaust gas treatment apparatus, which are capable of adjusting the discharge rate of the cleaning liquid in a noxious gas removal unit, which removes noxious gas remaining in a gaseous state in the cleaning liquid discharged from the exhaust gas treatment apparatus and discharges the cleaning liquid from which the noxious gas in the gaseous state has been removed, on the basis of a result of measurement of the level of the cleaning liquid in the noxious gas removal unit.

Abstract: A method of two-step variable valve lift (VVL) operation learning control for a vehicle may include: applying, by a lift controller, a VVL control to an electric two-step VVL system; determining, by the lift controller, whether the vehicle is running in an electric vehicle (EV) mode; and when the vehicle is running in the EV mode, performing, by the lift controller, a learning time securing control of allowing a VVL operation learning to be performed by engine operating for an operation avoidance area and an operation avoidance time which are applied to a secondary lift of an exhaust valve.

Abstract: A method of two-step variable valve lift (VVL) malfunction avoidance learning control may include: in a two-step VVL system which is operated with a main lift and a secondary lift, verifying, by an electronic control unit (ECU), an operation avoidance area based on locking of a lock pin of a cam follower ; performing VVL operation learning, in which a failure of occurrence of the second lift is determined on the basis of a locking failure of the cam follower due to an initially set value of the operation avoidance area; and reflecting the operation avoidance area to the two-step VVL system with a corrected set value which is obtained through the VVL operation learning.

Abstract: A variable compression ratio-applied control system using an ADAS and a control method thereof are provided. The system includes a driver assist unit for measuring the distance and the relative speed with a preceding vehicle, and a compression ratio changing unit for changing a compression ratio during traveling, and a neutral control mode for blocking power transfer by a transmission during traveling is implemented, a compression ratio changing unit is operated by using the information acquired through the driver assist unit in a state where the neutral control mode has been implemented, and the compression ratio is changed during inertia traveling during which the neutral control mode has been implemented.

Abstract: A mild hybrid vehicle controlling method, wherein the mild hybrid vehicle has a driver assistance module for detecting peripheral vehicle information and a mild hybrid starter & generator (MSHG) may comprises comparing, by a controller, the peripheral vehicle information with a predetermined reference value and deciding whether after-treatment regeneration control is performed or not according to a result of the comparison.

Abstract: A variable compression ratio engine includes a piston reciprocally moving in a cylinder of an engine; a variable compression ratio apparatus controlling a movable range of the piston; and a controller controlling the variable compression ratio apparatus if a driving condition of a vehicle and a stability condition of the engine are satisfied to change a compression ratio and controlling a motor torque and an engine torque to control a requirement torque to be satisfied.

Abstract: A variable compression ratio engine includes a piston reciprocally moving in a cylinder of an engine; a variable compression ratio apparatus controlling a movable range of the piston; and a controller controlling the variable compression ratio apparatus if a driving condition of a vehicle and a stability condition of the engine are satisfied to change a compression ratio and controlling a motor torque and an engine torque to control a requirement torque to be satisfied.