Abstract: A charging device according to an exemplary embodiment of the present invention may include: a battery adapted and configured to store a DC voltage, first and second motors adapted and configured to operate as a motor or a generator, first and second inverters adapted and configured to operate the first and second motors, a voltage transformer adapted and configured to boost the DC voltage of the battery to supply it to the first and second inverters and boosts the DC voltage of the inverter to supply it to the battery, and a charging controller adapted and configured to operate the first and second inverters as a booster or operate the voltage transformer as a buck booster according to a voltage that is input through a neutral point of the first and second motors and the voltage of the battery.

Abstract: A charging device according to an exemplary embodiment of the present invention may include: a battery adapted and configured to store a DC voltage, first and second motors adapted and configured to operate as a motor or a generator, first and second inverters adapted and configured to operate the first and second motors, a voltage transformer adapted and configured to boost the DC voltage of the battery to supply it to the first and second inverters and boosts the DC voltage of the inverter to supply it to the battery, and a charging controller adapted and configured to operate the first and second inverters as a booster or operate the voltage transformer as a buck booster according to a voltage that is input through a neutral point of the first and second motors and the voltage of the battery.

Abstract: A charging device according to an exemplary embodiment of the present invention may include: a battery adapted and configured to store a DC voltage, first and second motors adapted and configured to operate as a motor or a generator, first and second inverters adapted and configured to operate the first and second motors, a voltage transformer adapted and configured to boost the DC voltage of the battery to supply it to the first and second inverters and boosts the DC voltage of the inverter to supply it to the battery, and a charging controller adapted and configured to operate the first and second inverters as a booster or operate the voltage transformer as a buck booster according to a voltage that is input through a neutral point of the first and second motors and the voltage of the battery.

Abstract: A charging device according to an exemplary embodiment of the present invention may include: a battery adapted and configured to store a DC voltage, first and second motors adapted and configured to operate as a motor or a generator, first and second inverters adapted and configured to operate the first and second motors, a voltage transformer adapted and configured to boost the DC voltage of the battery to supply it to the first and second inverters and boosts the DC voltage of the inverter to supply it to the battery, and a charging controller adapted and configured to operate the first and second inverters as a booster or operate the voltage transformer as a buck booster according to a voltage that is input through a neutral point of the first and second motors and the voltage of the battery.

Abstract: A charging device according to an exemplary embodiment of the present invention may include: a battery adapted and configured to store a DC voltage, first and second motors adapted and configured to operate as a motor or a generator, first and second inverters adapted and configured to operate the first and second motors, a voltage transformer adapted and configured to boost the DC voltage of the battery to supply it to the first and second inverters and boosts the DC voltage of the inverter to supply it to the battery, and a charging controller adapted and configured to operate the first and second inverters as a booster or operate the voltage transformer as a buck booster according to a voltage that is input through a neutral point of the first and second motors and the voltage of the battery.

Abstract: An inverter control apparatus is provided that offers a ‘soft turn off’ to a gate operation of the inverter so as to securely protect the IGBT. In particular, an inverter control system according to the present invention may include a gate operating portion that controls turn on/off of an IGBT and forcibly turns off the IGBT if a short circuit or an over current is detected from the IGBT, a current buffer that amplifies a control current for the turn on/off of the IGBT that is outputted from the gate operating portion, and a filter that delays the forcible turn off control current that is outputted from the gate operating portion.

Abstract: Disclosed is a power train of a hybrid vehicle that includes a first, second and third planetary gear sets each having first, second and third elements; a first motor generator connected with the first element of the second planetary gear set and the first element of the third planetary gear set; a second motor generator connected with the first element of the first planetary gear set; an engine connected with the second element of the second planetary gear set and the second element of the third planetary gear set; an output shaft connected with the second element of the first planetary gear set and the third element of the second planetary gear set; a brake selectively restraining rotation of the third element of the first planetary gear set; and a clutch selectively engaging/disengaging the third element of the first planetary gear set with the third element of the third planetary gear set.

Abstract: An inverter control apparatus is provided that offers a ‘soft turn off’ to a gate operation of the inverter so as to securely protect the IGBT. In particular, an inverter control system according to the present invention may include a gate operating portion that controls turn on/off of an IGBT and forcibly turns off the IGBT if a short circuit or an over current is detected from the IGBT, a current buffer that amplifies a control current for the turn on/off of the IGBT that is outputted from the gate operating portion, and a filter that delays the forcible turn off control current that is outputted from the gate operating portion.

Abstract: A power transmitting apparatus of hybrid vehicles that transmits torque from an engine and first and second motor/generators to an output shaft is provided. The apparatus may include: a first planetary gear set having a first operating member fixedly connected to the second motor/generator, a second operating member selectively connected to the first operating member, and a third operating member; and a second planetary gear set having a fourth operating member fixedly connected to the engine and selectively connected to the second operating member, a fifth operating member fixedly connected to the first motor/generator and selectively connected to the second operating member, and a sixth operating member fixedly connected to the third operating member and the output shaft. With the apparatus, fuel efficiency can be remarkably improved.

Abstract: A power train according to an embodiment of the invention includes three sets of planetary gear sets, one clutch, and two brakes, such that it provides two electric vehicle modes, two hybrid modes, and two engine modes of overdrive shift ratio. Further, the power train of a hybrid vehicle has a simple configuration, high power performance, and reduced weight and fuel consumption, while being easily equipped in the vehicle. In particular, since an engine mode that makes it possible to reduce a significant amount of fuel consumption especially when a vehicle is traveling at a constant high-velocity.

Abstract: A water pump control apparatus and method of a hybrid vehicle are used to control a motorized water pump according to the heat emission amount of an engine. The apparatus and method include calculating a temperature difference by detecting a temperature of a coolant exhausted from an engine and a temperature of the coolant flowing to an engine, calculating a heat emission amount of the engine by applying a circulating coolant flux to the temperature difference, and driving a motorized water pump with a driving power in proportion to the heat emission amount of the engine.

Abstract: The present invention relates to a water pump control apparatus of a hybrid vehicle and a control method thereof. An exemplary apparatus according to the present invention includes a thermostat determining a circulation path of the coolant, a coolant temperature sensor, a motorized water pump configured to pump a coolant, and a control portion for controlling the motorized water pump to circulate the coolant, if the hybrid vehicle enters into an EV mode or an idle engine stop mode if the coolant temperature exceeds a predetermined temperature. An exemplary method of the present invention includes the steps of suspending operation of the motorized water pump if the coolant temperature is less than a predetermined value until a cooling fan is operated, and controlling a driving speed of the motorized water pump according to a load of the cooling fan in operation.

Abstract: A power train of a hybrid vehicle according to the invention has a simple configuration, high power performance, and reduced weight and fuel consumption, while being easily equipped in the vehicle. In particular, it is possible to reduce a significant amount of fuel consumption especially when a vehicle is traveling at a constant high-velocity.

Abstract: A power train according to an embodiment of the invention includes three sets of planetary gear sets, one clutch, and two brakes, such that it provides two electric vehicle modes, two hybrid modes, and two engine modes of overdrive shift ratio. Further, the power train of a hybrid vehicle has a simple configuration, high power performance, and reduced weight and fuel consumption, while being easily equipped in the vehicle. In particular, since an engine mode that makes it possible to reduce a significant amount of fuel consumption especially when a vehicle is traveling at a constant high-velocity.

Abstract: A power transmitting apparatus of hybrid vehicles that transmits torque from an engine and first and second motor/generators to an output shaft is provided. The apparatus may include: a first planetary gear set having a first operating member fixedly connected to the second motor/generator, a second operating member selectively connected to the first operating member, and a third operating member; and a second planetary gear set having a fourth operating member fixedly connected to the engine and selectively connected to the second operating member, a fifth operating member fixedly connected to the first motor/generator and selectively connected to the second operating member, and a sixth operating member fixedly connected to the third operating member and the output shaft. With the apparatus, fuel efficiency can be remarkably improved.