Abstract: A method for controlling a motor includes detecting output signals output from three phases of a hall sensor, determining a failure of the hall sensor depending on the output signals, diagnosing which of the three phases of the hall sensor is out of order based on the output signals if it is determined that the hall sensor detections deviate from a predicted order, and outputting a virtual signal for the phase which is determined as a failure among the three phases of the hall sensor to a motor controller.

Abstract: A method for controlling a hydraulic pressure refilling operation for an engine clutch of a vehicle includes determining whether the vehicle travels using power of a driving motor with an engine clutch maintained in a disengaged state, and upon determining that the vehicle travels using power of the driving motor with the engine clutch maintained in the disengaged state, determining whether loss of hydraulic pressure has occurred, and upon determining that loss of hydraulic pressure has occurred, controlling a hydraulic pressure refilling operation such that working fluid in a reservoir is supplied to the actuator with the engine clutch in an engaged state, and controlling the driving motor so that the driving motor outputs a compensated torque by compensating for an effect of a load torque, generated by a non-operating engine, on a torque of the driving motor.

Abstract: An apparatus for controlling an electric oil pump (EOP) includes a controller calculating first revolutions per minute (RPM), second RPM and third RPM, the first RPM being EOP RPM required for control of a brake in a transmission, the second RPM being EOP RPM required for cooling of a plurality of motors, and the third RPM being EOP RPM required for lubrication of the plurality of motors, the controller comparing the second RPM with the third RPM and driving the EOP at an RPM obtained by adding the first RPM to the greater of the second RPM and the third RPM.

Abstract: The present invention relates to a titanium alloy which is capable of nonlinear elastic deformation and simultaneously has super-high strength, super-low elastic modulus and stable super-elastic properties. The titanium alloy according to the present invention comprises Nb, Zr and O as alloy elements, the remainder being Ti and inevitable impurities, and has a valance electron ratio (e/a) of 4.17 to 4.22, a Mo equivalent (Moeq) of 7.50 to 9.72, and an Al equivalent (Aleq) of 1.42 to 14.53.

Abstract: A method for diagnosing abrasion of an electric oil pump rotor includes sensing a driving duty of an oil pump control unit, and determining whether the sensed driving duty of the oil pump control unit is below a set reference value, wherein as a result of the determining, when the driving duty of the oil pump control unit is below the set reference value, it is determined that the electric oil pump rotor is in a worn out state.

Abstract: A method for stabilizing an engine clutch control includes transmitting an engine clutch operation start command from a controller to an engine clutch system, the engine clutch system including an engine clutch, detecting a hydraulic pressure generated during the operation of the engine clutch system, carrying out an oil leakage judgment mode using the controller so as to judge whether the hydraulic pressure is a normal hydraulic pressure where the operation of the engine clutch is available or if the hydraulic pressure an abnormal hydraulic pressure where the operation of the engine clutch is unavailable, and changing an operation mode to an emergency operation mode wherein the operation of the engine clutch is stopped in case of abnormal hydraulic pressure, and carrying out an operation mode change by operating the engine clutch in a case of normal hydraulic pressure, based on a control by the controller.

Abstract: An apparatus for controlling a clutch in an environmentally friendly vehicle includes: a clutch configured to transfer or block power generated in a power generator; a clutch actuator configured to measure a pressure of the clutch using a pressure sensor embedded therein; and a controller configured to compare the pressure measured through the pressure sensor with reference data and inspect whether or not abrasion occurs in the clutch depending on the comparison.

Abstract: A method for diagnosing abrasion of an electric oil pump rotor includes sensing a driving duty of an oil pump control unit, and determining whether the sensed driving duty of the oil pump control unit is below a set reference value, wherein as a result of the determining, when the driving duty of the oil pump control unit is below the set reference value, it is determined that the electric oil pump rotor is in a worn out state.

Abstract: A failure diagnosis method for a Hall sensor includes: a failure recognizing step of recognizing a failure signal of a Hall sensor by a control unit; a duty increasing step of, when the failure signal is recognized as a result of having performed the failure recognizing step, increasing a driving duty of an oil pump by a preset value; and a failure diagnosing step of diagnosing a failure of the Hall sensor after the duty increasing step.

Abstract: A method for controlling a motor includes detecting output signals output from three phases of a hall sensor, determining a failure of the hall sensor depending on the output signals, diagnosing which of the three phases of the hall sensor is out of order based on the output signals if it is determined that the hall sensor detections deviate from a predicted order, and outputting a virtual signal for the phase which is determined as a failure among the three phases of the hall sensor to a motor controller.

Abstract: An apparatus for controlling a motor includes a hall sensor including a plurality of phases, each phase provided to output hall signals depending on a driving state of the motor, a micom for detecting a failure of the hall sensor based on the hall signals and output virtual hall signals which are the hall signals in a normal condition depending on the detected results, and a motor controller for receiving the hall signals from the hall sensor or the virtual hall signals from the micom and drive the motor depending on the received signal.

Abstract: A system for controlling a hybrid electric vehicle includes a control unit for determining whether or not an Oil Pump Unit (OPU) and an Electric Oil Pressure (EOP) temperature sensor are normally operated; a phase current density comparison unit for comparing the mean density of phase currents acquired after shifting the gears of the vehicle with the density of coil phase currents which flow through a coil at a maximum permissible temperature at which the coil is not burning; and a torque control unit for controlling the value of torque to be applied to a transmission according to a result acquired by the phase current density comparison unit.

Abstract: A system and method of controlling an automotive electric oil pump are provided. The method of controlling an oil pump can minimize power consumption of a vehicle and improve the fuel efficiency accordingly by learning the performance of the electric oil pump and operating the electric oil pump based on performance.

Abstract: A system and method of controlling an automotive electric oil pump are provided. The method of controlling an oil pump can minimize power consumption of a vehicle and improve the fuel efficiency accordingly by learning the performance of the electric oil pump and operating the electric oil pump based on performance.

Abstract: A method and system for controlling a fail safe of a transmission for a vehicle are provided. The method includes detecting an oil temperature of the transmission for the vehicle and determining whether an oil pump has been driven for a set time or more based on the detected oil temperature. An output of an engine is then limited when the set time elapses.

Abstract: A fail-safe device and a fail-safe method for an engine clutch actuator for a hybrid vehicle may facilitate conversion into a hybrid electric vehicle (HEV) mode even upon failure of an engine clutch actuator by diagnosing a failure state of an electric vehicle (EV) mode due to failure of the engine clutch actuator using a pressure sensor mounted on an actuator master cylinder of the engine clutch actuator when a driving mode is converted from the EV mode to the HEV mode, transmitting a diagnostic signal to a hybrid control unit, and allowing hydraulic oil in the actuator master cylinder to be easily supplied into a concentric slave cylinder using a separate emergency actuator when the driving mode is converted from the EV mode to the HEV mode.

Abstract: A method and system for controlling a fail safe of a transmission for a vehicle are provided. The method includes detecting an oil temperature of the transmission for the vehicle and determining whether an oil pump has been driven for a set time or more based on the detected oil temperature. An output of an engine is then limited when the set time elapses.

Abstract: A system for controlling a hybrid electric vehicle includes a control unit for determining whether or not an Oil Pump Unit (OPU) and an Electric Oil Pressure (EOP) temperature sensor are normally operated; a phase current density comparison unit for comparing the mean density of phase currents acquired after shifting the gears of the vehicle with the density of coil phase currents which flow through a coil at a maximum permissible temperature at which the coil is not burning; and a torque control unit for controlling the value of torque to be applied to a transmission according to a result acquired by the phase current density comparison unit.

Abstract: A drive control system for an electric oil pump may include the electric oil pump supplying operating hydraulic pressure to a transmission, a data detector detecting data, and a controller setting an operation mode of the electric oil pump on the basis of data detected by the data detector, setting a basic oil amount on the basis of oil amounts for a high-pressure part and a low-pressure part according to the set operation mode, and applying operating hydraulic pressure to the electric oil pump on the basis of a final oil amount by compensating the basic oil amount, wherein the operating hydraulic pressure may be supplied to the transmission by the electric oil pump.

Abstract: A fail safe method of an actuator includes determining whether a vehicle is travelling in an electric vehicle (EV) mode when an actuator fail of an engine clutch of the vehicle is generated, determining whether a returning operation of returning the actuator to a home position is possible when it is determined that the vehicle is travelling in the EV mode, connecting the engine clutch when it is determined that the returning operation of the actuator is possible, and driving the vehicle in a hybrid electric vehicle (HEV) mode.