Abstract: A system and a method for determining a failure within a resolver are provided. The method includes detecting signals output from the resolver. In addition, an average value and a deviation value of the detected signals are calculated. Further, the controller is configured to determine a disconnection or a short circuit of the resolver using the calculated average value and deviation value.

Abstract: A shift control apparatus for a hybrid vehicle, capable of moving backward through control of a motor and a transmission. The shift control apparatus for the hybrid vehicle includes an engine as a power source; first and second motors connected to the engine; an engine clutch positioned between the engine and the first motor and selectively connecting the engine and the first motor; a transmission receiving a driving torque from at least one of the engine and first motor by a release or an engagement of the engine clutch; and a vehicle controller releasing the engine clutch if a backward moving request signal is input. The shift control apparatus further confirms a backward moving torque amount when the speed of the vehicle is a reference speed or less, and controls the first motor based on the backward moving torque amount for the vehicle to be moved backward.

Abstract: An active vibration reduction control apparatus for a hybrid electric vehicle includes: a reference signal generator generating a reference signal and a first phase based on a first rotational angle of a first motor; a vibration extractor extracting a vibration signal from a second motor; a coefficient determiner determining a filter coefficient which minimizes a phase difference between the reference signal and the vibration signal; a phase determiner detecting a second phase which corresponds to the phase difference using a first speed signal of the first motor and the filter coefficient; a phase deviation amount detector detecting a third phase for compensating for a phase delay; and a synchronization signal generator generating an antiphase signal of a shape of an actual vibration in order to determine a compensating force of the first motor.

Abstract: A method of manufacturing a semiconductor device which can prevent leakage current caused by gate electrodes intersecting element isolation layers in a major axis of an active region, and which further has vertical channels to provide a sufficient overlap margin, and a semiconductor device manufactured using the above method. The device includes gate electrodes formed on element isolation layers that are disposed between active regions and have top surfaces that are higher than the top surfaces of the active regions. Since the gate electrodes are formed on the element isolation layers, leakage current in a semiconductor substrate is prevented. In addition, the gate electrodes are formed using a striped shape mask pattern, thereby obtaining a sufficient overlap margin compared to a contact shape or bar shape pattern.

Abstract: A method for reducing vibration of a drive shaft of an eco-friendly vehicle includes calculating a model velocity of the drive shaft, obtaining a vibration component based on a deviation between an actual velocity of the drive shaft and the calculated model velocity, and generating a vibration reduction compensation torque for reduction in vibration of the drive shaft from the vibration component.

Abstract: An active vibration reduction control apparatus for a hybrid electric vehicle includes: a reference signal generator generating a reference signal and a first phase based on a first rotational angle of a first motor; a vibration extractor extracting a vibration signal from a second motor; a coefficient determiner determining a filter coefficient which minimizes a phase difference between the reference signal and the vibration signal; a phase determiner detecting a second phase which corresponds to the phase difference using a first speed signal of the first motor and the filter coefficient; a phase deviation amount detector detecting a third phase for compensating for a phase delay; and a synchronization signal generator generating an antiphase signal of a shape of an actual vibration in order to determine a compensating force of the first motor.

Abstract: A system for cooling a vehicle including a power conversion component, a motor, a radiator, an electronic water pump, and a cooling unit cooling the power conversion component includes: an air conditioning unit configured to interlock with the cooling unit to perform air conditioning of the vehicle; a temperature sensor configured to sense a temperature of air in the air conditioning unit; a cooling water temperature sensor configured to sense a temperature of cooling water flowing in the cooling unit; and a cooling control controller configured to calculate a targeted air flow rate and a targeted cooling water flow rate to control the cooling of the cooling unit.

Abstract: A method of decreasing vibration during release of a stop gear of a vehicle can be applied to an eco-friendly vehicle for decreasing vibration generated when a driver releases a P step of a gear lever while torsion occurs in a drive shaft of the vehicle. Reaction force torque of a driving motor is controlled so as to output reaction force that has been generated in a parking sprag by a driving motor when torsion occurs in the drive shaft after entrance of the gear lever into the P step, so as to decrease vibration generated because torsion reaction force of the drive shaft vanishes at the same time.

Abstract: A motor speed control method and system for improving the performance of a running resistance evaluation of a hybrid electric vehicle are provided. The method includes determining whether a vehicle satisfies a running resistance evaluation start condition. When the vehicle satisfies the running resistance evaluation start condition, the speed of a motor is adjusted, which adjusts an input speed of a transmission to be equal to an output speed of the transmission. A speed adjustment of the motor is then completed using the speed of the motor and the output speed of the transmission.

Abstract: A pulse shaping circuit is configured to shape a waveform of an edge of a signal applied to a switch of a power amplifier included in an on-off keying transmitter.

Abstract: A leakage current-based delay circuit is provided, wherein the delay circuit may include a first transistor circuit and a second transistor circuit, each transistor circuit may include a p-type transistor, an n-type transistor, an n-node between a drain node of the p-type transistor and a gate node of the n-type transistor, and a p-node between a gate node of the p-type transistor and a drain node of the n-type transistor. The p-node of the second transistor circuit may be charged based on a power source voltage through the first transistor circuit during a first time interval of an input signal, and the n-node of the second transistor circuit may be discharged based on a ground voltage through the first transistor circuit during the first time interval.

Abstract: A shift control apparatus for a hybrid vehicle, capable of moving backward through control of a motor and a transmission. The shift control apparatus for the hybrid vehicle includes an engine as a power source; first and second motors connected to the engine; an engine clutch positioned between the engine and the first motor and selectively connecting the engine and the first motor; a transmission receiving a driving torque from at least one of the engine and first motor by a release or an engagement of the engine clutch; and a vehicle controller releasing the engine clutch if a backward moving request signal is input. The shift control apparatus further confirms a backward moving torque amount when the speed of the vehicle is a reference speed or less, and controls the first motor based on the backward moving torque amount for the vehicle to be moved backward.

Abstract: A method for reducing vibration of a drive shaft of an eco-friendly vehicle includes calculating a model velocity of the drive shaft, obtaining a vibration component based on a deviation between an actual velocity of the drive shaft and the calculated model velocity, and generating a vibration reduction compensation torque for reduction in vibration of the drive shaft from the vibration component.

Abstract: An apparatus and method for measuring a tactile information, using a material having variable pressure dependent properties is disclosed. The apparatus for measuring the tactile information may include a plurality of pressure measurement units to measure a magnitude of an external pressure using a material having variable properties, and a tactile information measurement unit to measure a three-dimensional (3D) tactile information based on the external pressure using a location of the plurality of pressure measurement units and a pressure measured by the plurality of pressure measurement units.

Abstract: A method of manufacturing a semiconductor device which can prevent leakage current caused by gate electrodes intersecting element isolation layers in a major axis of an active region, and which further has vertical channels to provide a sufficient overlap margin, and a semiconductor device manufactured using the above method. The device includes gate electrodes formed on element isolation layers that are disposed between active regions and have top surfaces that are higher than the top surfaces of the active regions. Since the gate electrodes are formed on the element isolation layers, leakage current in a semiconductor substrate is prevented. In addition, the gate electrodes are formed using a striped shape mask pattern, thereby obtaining a sufficient overlap margin compared to a contact shape or bar shape pattern.

Abstract: Disclosed are a system and method for a grid-based geo-fencing service. A grid-based geo-fencing service system includes a storage unit configured to store area information including one or more grids and a determination unit configured to receive location coordinates of a moving object and determine whether the moving object is present in an area with reference to the area information. According to embodiments of the present disclosure, it is possible to effectively reduce the amount of calculation needed by a geo-fencing service system to determine whether location-tracking data corresponds to a specified area and thus effectively respond to the processing of a large amount of location-tracking data collected in real time.

Abstract: An active vibration reduction control apparatus and method of a hybrid vehicle are provided to generate a reference signal of a first motor that corresponds a vibration signal extracted from a second motor. An amplitude and phase of the reference signal is adjusted based on frequency characteristic of a drive system transfer function to generate vibration reduction torque of a first motor within the hybrid vehicle. The first motor, a torsional damper, an engine, a connector (a belt-pulley, a chain, a gear, and so on), and the second motor are sequentially connected within the hybrid vehicle.

Abstract: Disclosed is a power off device which includes a micro arc detector for turning on a first switching element, based on a voltage induced in a high frequency choke coil by a high frequency pulse current caused by micro arc at a power line, a high current arc detector for outputting a high current arc detection current during turning-on of a second switching element made based on variation of a magnetic field generated at a coil, a delay unit for accumulatively charging the micro arc detection current or the high current arc detection current in a delay capacitor at a predetermined time constant, a power off unit for electrically disconnecting a load from the power line when an operating voltage is applied, and a first switch for connecting the operating voltage to the power off unit in response to the arc detection signal.

Abstract: A method of manufacturing a semiconductor device which can prevent leakage current caused by gate electrodes intersecting element isolation layers in a major axis of an active region, and which further has vertical channels to provide a sufficient overlap margin, and a semiconductor device manufactured using the above method. The device includes gate electrodes formed on element isolation layers that are disposed between active regions and have top surfaces that are higher than the top surfaces of the active regions. Since the gate electrodes are formed on the element isolation layers, leakage current in a semiconductor substrate is prevented. In addition, the gate electrodes are formed using a striped shape mask pattern, thereby obtaining a sufficient overlap margin compared to a contact shape or bar shape pattern.

Abstract: A motor speed control method and system for improving the performance of a running resistance evaluation of a hybrid electric vehicle are provided. The method includes determining whether a vehicle satisfies a running resistance evaluation start condition. When the vehicle satisfies the running resistance evaluation start condition, the speed of a motor is adjusted, which adjusts an input speed of a transmission to be equal to an output speed of the transmission. A speed adjustment of the motor is then completed using the speed of the motor and the output speed of the transmission.