Abstract: A charging apparatus for an electric vehicle is provided. The apparatus includes an AC power input terminal receiving one AC input power from among single-phase AC power and multi-phase AC power. A power factor corrector having full bridge circuits receives the AC input power through the AC power input terminal. A link capacitor is charged through the power factor corrector. A first switch connects any one of an AC power input line and a neutral line of the AC power input terminal to the power factor corrector and a second switch selectively connects the AC power input terminal to the power factor corrector, or the link capacitor. The power factor corrector and the switch network operate based on a condition of received AC input power. The second switch includes a third switch and a fourth switch that connect each full bridge circuit to a positive battery electrode.

Abstract: An apparatus for compensating for a position information error of a resolver includes: a resolver-digital converter configured to generate a corresponding output angle by estimating resolver position information from a resolver output signal; and a position error compensation learner configured to determine a position error component in a corresponding electric angular velocity of the resolver output signal using the resolver output signal and the output angle and to convert the position error component to a position error component in an electric angular velocity 0. The resolver-digital converter compensates for an error by reflecting the position error component in the electric angular velocity 0 in the error between a position angle of the resolver output signal and the output angle.

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 power conversion apparatus can include: a power module configured to transfer an analog sensing signal corresponding to a current of an inductor and a voltage applied at both terminals of a capacitor, and to perform power conversion by driving a power semiconductor with a pulse-width modulation signal; and a controller configured to receive the analog sensing signal from the power module, to convert the analog sensing signal to a digital signal, to generate the pulse-width modulation signal, and to transfer the pulse-width modulation signal to the power module.

Abstract: A charging apparatus for an electric vehicle is provided. The apparatus includes an AC power input terminal receiving one AC input power from among single-phase AC power and multi-phase AC power. A power factor corrector having full bridge circuits receives the AC input power through the AC power input terminal. A link capacitor is charged through the power factor corrector. A first switch connects any one of an AC power input line and a neutral line of the AC power input terminal to the power factor corrector and a second switch selectively connects the AC power input terminal to the power factor corrector, or the link capacitor. The power factor corrector and the switch network operate based on a condition of received AC input power. The second switch includes a third switch and a fourth switch that connect each full bridge circuit to a positive battery electrode.

Abstract: An apparatus and method are provided for compensating for a position error of a resolver that compensates for positions in the overall speed range using resolver position error measured at a specific speed by providing an angle tracking observer (ATO) for calculating angle information. The ATO compensates for the position errors in the overall speed range based on the position errors measured at the specific speed, to an inside of a resolver-digital converter. The method includes digitalizing detected position information of the motor rotor and receiving the digitalized position information from a resolver-digital converter to measure the position error. An electrical angular velocity of the position error is determined and the position error at the electrical angular velocity 0 is calculated and stored. The position error at a current electrical angular velocity is converted into and compensated for using the calculated position error based on the current electrical angular velocity.

Abstract: A power conversion apparatus can include: a power module configured to transfer an analog sensing signal corresponding to a current of an inductor and a voltage applied at both terminals of a capacitor, and to perform power conversion by driving a power semiconductor with a pulse-width modulation signal; and a controller configured to receive the analog sensing signal from the power module, to convert the analog sensing signal to a digital signal, to generate the pulse-width modulation signal, and to transfer the pulse-width modulation signal to the power module.

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 controlling a power factor correction circuit includes: sensing, by a control unit, an input signal; deriving, by the control unit, a delay correction input signal using the input signal and a previous input signal that is sensed before the input signal; and controlling, by the control unit, the power factor correction circuit using the derived delay correction input signal.

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: An apparatus for controlling an LLC converter is provided. The apparatus includes a current controller that determines a first switching frequency control value of a switching element in the LLC converter to cause an output current detection value of the LLC converter to correspond to a predetermined output current command value. Additionally, a feedforward controller determines a second switching frequency control value for operating the switching element by applying a feedforward control value that corresponds to a ripple component included in an input voltage of the LLC converter to the first switching frequency control value.

Abstract: The present invention relates to an anti-jerk control apparatus and method for an Hybrid Electric Vehicle (HEV). The anti-jerk control apparatus includes a model speed calculation unit for calculating a model speed of the motor in a state in which a vibration of a drive shaft is not considered. A vibration occurrence determination unit detects a speed vibration component while calculating a reference speed difference and an average speed difference from differences between the model speed and an actual speed of the motor, thus determining whether a vibration occurs on the drive shaft. A torque correction value calculation unit calculates a motor torque correction value for anti-jerk required to damp the vibration of the drive shaft, and controls torque of the motor if the vibration occurrence determination unit determines that the vibration occurs on the drive shaft.

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 for controlling a power factor correction circuit includes: sensing, by a control unit, an input signal; deriving, by the control unit, a delay correction input signal using the input signal and a previous input signal that is sensed before the input signal; and controlling, by the control unit, the power factor correction circuit using the derived delay correction input signal.

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 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 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: 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: An engine pulley structure of a hybrid vehicle and a method of controlling the same are provided. The engine pulley clutch structure includes a disc hub part that is configured to transfer or block power of an engine for the hybrid vehicle that has a hybrid starter generator (HSG) and an idle starter generator (ISG). A pulley part is linked with the disc hub part and is connected to a pulley of the engine by a belt. Additionally, a field coil part is linked with the pulley part to generate a magnetic field. The power is transferred by fastening the engine and the belt in the section in which the HSG and the ISG are operated within the hybrid vehicle.

Abstract: An apparatus for compensating for a position information error of a resolver includes: a resolver-digital converter configured to generate a corresponding output angle by estimating resolver position information from a resolver output signal; and a position error compensation learner configured to determine a position error component in a corresponding electric angular velocity of the resolver output signal using the resolver output signal and the output angle and to convert the position error component to a position error component in an electric angular velocity 0. The resolver-digital converter compensates for an error by reflecting the position error component in the electric angular velocity 0 in the error between a position angle of the resolver output signal and the output angle.