Abstract: A method of virtualizing the characteristics of an internal-combustion-engine vehicle in an electric vehicle includes: receiving vehicle driving information of the electric vehicle at a controller, determining a current vehicle driving mode based on the input vehicle driving information by the controller, determining a virtual engine speed in the determined vehicle driving mode using the vehicle driving information by the controller, outputting a control signal for virtualizing characteristics of an internal-combustion-engine (ICE) driving system corresponding to a current vehicle driving mode based on the determined virtual engine speed by the controller, and virtualizing the characteristics of the ICE driving system corresponding to the current vehicle driving mode by controlling an operation of a virtualization device according to the output control signal by the controller.

Abstract: A dog clutch engagement method of an electric four-wheel drive vehicle includes steps of: when dog clutch engagement is requested during driving, determining a target synchronization speed of the input gear to be a sum of an estimated speed and an offset speed of the output gear; operating a drive unit so that an input gear follows the target synchronization speed; when an actual speed of the input gear reaches the target synchronization speed, moving a sleeve to a meeting position at which the sleeve is in contact with the input gear; and when the actual speed of the input gear is synchronized with an actual speed of the output gear, transporting the sleeve to an engagement position at which the input gear and the output gear are coupled.

Abstract: A dog clutch engagement method of an electric four-wheel drive vehicle includes steps of: when dog clutch engagement is requested during driving, determining a target synchronization speed of the input gear to be a sum of an estimated speed and an offset speed of the output gear; operating a drive unit so that an input gear follows the target synchronization speed; when an actual speed of the input gear reaches the target synchronization speed, moving a sleeve to a meeting position at which the sleeve is in contact with the input gear; and when the actual speed of the input gear is synchronized with an actual speed of the output gear, transporting the sleeve to an engagement position at which the input gear and the output gear are coupled.

Abstract: A method of virtualizing the characteristics of an internal-combustion-engine vehicle in an electric vehicle includes: receiving vehicle driving information of the electric vehicle at a controller, determining a current vehicle driving mode based on the input vehicle driving information by the controller, determining a virtual engine speed in the determined vehicle driving mode using the vehicle driving information by the controller, outputting a control signal for virtualizing characteristics of an internal-combustion-engine (ICE) driving system corresponding to a current vehicle driving mode based on the determined virtual engine speed by the controller, and virtualizing the characteristics of the ICE driving system corresponding to the current vehicle driving mode by controlling an operation of a virtualization device according to the output control signal by the controller.

Abstract: A vehicle and a control method of the vehicle are provided. The vehicle includes an engine management system to drive an engine to adjust a driving torque of the engine to accelerate the vehicle, a communicator to receive road gradient information, and a controller configured to control the engine management system such that running speed of the vehicle follows a target speed. The controller predicts an increase amount of speed of a next downhill section based on the road gradient information, and determines a start point of coasting control of a current section for maximizing a coasting distance based on the predicted speed increase amount.

Abstract: A cruise control system, the vehicle including the same, and the method of controlling the cruise control system are provided to improve fuel efficiency by changing control target vehicle speeds by continuously predicting vehicle speeds and variations in required driving forces on roads with various slope variations. Additionally, driving performance is improved by using kinetic energies and preventing unnecessary acceleration and deceleration in comparison with conventional vehicles. Driver convenience and satisfaction is also improved by preventing an unintended operation stop of the cruise control system caused by frequent acceleration and deceleration on roads with substantial slope variations in advance and by preventing unintended acceleration/deceleration on roads with frequent slope variations.

Abstract: A vehicle and a control method of the vehicle are provided. The vehicle includes an engine management system to drive an engine to adjust a driving torque of the engine to accelerate the vehicle, a communicator to receive road gradient information, and a controller configured to control the engine management system such that running speed of the vehicle follows a target speed. The controller predicts an increase amount of speed of a next downhill section based on the road gradient information, and determines a start point of coasting control of a current section for maximizing a coasting distance based on the predicted speed increase amount.

Abstract: A cruise control system, the vehicle including the same, and the method of controlling the cruise control system are provided to improve fuel efficiency by changing control target vehicle speeds by continuously predicting vehicle speeds and variations in required driving forces on roads with various slope variations. Additionally, driving performance is improved by using kinetic energies and preventing unnecessary acceleration and deceleration in comparison with conventional vehicles. Driver convenience and satisfaction is also improved by preventing an unintended operation stop of the cruise control system caused by frequent acceleration and deceleration on roads with substantial slope variations in advance and by preventing unintended acceleration/deceleration on roads with frequent slope variations.

Abstract: An advanced driver assist system (ADAS) comprises a user interface (UI) configured to receive a destination from a user; a communicator configured to transmit position information of a vehicle; a route information transmission device configured to calculate a current position of the vehicle based on the position information and to transmit road model information by modeling map information of a traveling route from the calculated current position to the destination; and an ADAS control device configured to output a section residual distance for each road model, a section average valid gradient, and a section average valid curvature using the transmitted road model information.

Abstract: An auxiliary battery recharging control method and apparatus are provided. The method includes determining whether a recharging prohibition condition is established, based on first state information of a vehicle and second state information of a first battery, at regular recharging intervals, when a periodic recharging mode is executed, based on a first ignition (IG) voltage. Recharging is executed based on whether a critical recharging condition is established using third state information of a second battery, when an automatic recharging mode is executed, based on a second IG voltage. Additionally, a voltage variation is calculated of the second battery selected from the third state information, and at least one of a recharging time and a recharging voltage is adjusted, based on the calculated voltage variation, or the recharging interval is adjusted, based on the calculated voltage variation.

Abstract: A method and apparatus for controlling battery state of charge (SOC) in a hybrid electric vehicle are provided to enable the efficient use of energy, the maximization of energy recovery, and the improvement of fuel efficiency and operability without the improvement of capacity and performance of electrical equipment or a main battery in a hybrid electric vehicle. The apparatus includes a collecting device that collects information regarding the slope or the road type and information regarding the vehicle speed. A controller determines charge and discharge modes based on the driving information and determines a charging upper and lower limit SOC based on the road slope or road type information a road section on which the vehicle is traveling and the vehicle speed information in the road section. A charge or discharge command is output based on the charging upper limit SOC and the charging lower limit SOC.

Abstract: A method and an apparatus are provided for controlling an output voltage of a direct current (DC) converter for a vehicle including a driving motor. The apparatus of controlling an output voltage of a DC converter for a vehicle including a driving motor includes a data detector that is configured to detect data for adjusting the output voltage of the DC converter and a controller that is configured to adjust the output voltage of the DC converter based on the detected data.

Abstract: A method and an apparatus for controlling a hybrid electric vehicle are provided. The apparatus includes a navigation device that provides information regarding a gradient, a speed limit, and a traffic speed of a road. An accelerator pedal position detector detects a position of an accelerator pedal and a brake pedal position detector detects a position of a brake pedal. A vehicle speed detector detects a vehicle speed, a state of charge (SOC) detector detects an SOC of a battery, and a gear stage detector detects a gear stage that is currently engaged. A controller operates the hybrid vehicle based on signals of the navigation device, the accelerator pedal position detector, the brake pedal position detector, the vehicle speed detector, the SOC detector, and the gear stage detector.

Abstract: An auxiliary battery recharging control method and apparatus are provided. The method includes determining whether a recharging prohibition condition is established, based on first state information of a vehicle and second state information of a first battery, at regular recharging intervals, when a periodic recharging mode is executed, based on a first ignition (IG) voltage. Recharging is executed based on whether a critical recharging condition is established using third state information of a second battery, when an automatic recharging mode is executed, based on a second IG voltage. Additionally, a voltage variation is calculated of the second battery selected from the third state information, and at least one of a recharging time and a recharging voltage is adjusted, based on the calculated voltage variation, or the recharging interval is adjusted, based on the calculated voltage variation.

Abstract: An advanced driver assist system (ADAS) comprises a user interface (UI) configured to receive a destination from a user; a communicator configured to transmit position information of a vehicle; a route information transmission device configured to calculate a current position of the vehicle based on the position information and to transmit road model information by modeling map information of a traveling route from the calculated current position to the destination; and an ADAS control device configured to output a section residual distance for each road model, a section average valid gradient, and a section average valid curvature using the transmitted road model information.

Abstract: A method and an apparatus for controlling a hybrid electric vehicle are provided. The apparatus includes a navigation device that provides information regarding a gradient, a speed limit, and a traffic speed of a road. An accelerator pedal position detector detects a position of an accelerator pedal and a brake pedal position detector detects a position of a brake pedal. A vehicle speed detector detects a vehicle speed, a state of charge (SOC) detector detects an SOC of a battery, and a gear stage detector detects a gear stage that is currently engaged. A controller operates the hybrid vehicle based on signals of the navigation device, the accelerator pedal position detector, the brake pedal position detector, the vehicle speed detector, the SOC detector, and the gear stage detector.

Abstract: An apparatus is provided for showing information related to fuel efficiency in a vehicle includes: a determination unit collecting at least one factor related to fuel efficiency including at least one of an estimated value from a fuel economy prediction device and a travel distance under a coasting drive state; a calculation unit obtaining a fuel efficiency ratio based on each factor and calculating a fuel gain and a fuel contribution for each factor to provide information for each factor; and a display unit displaying the information provided from the calculation unit.

Abstract: A method and an apparatus are provided for controlling an output voltage of a direct current (DC) converter for a vehicle including a driving motor. The apparatus of controlling an output voltage of a DC converter for a vehicle including a driving motor includes a data detector that is configured to detect data for adjusting the output voltage of the DC converter and a controller that is configured to adjust the output voltage of the DC converter based on the data.

Abstract: A method for controlling an output of an LDC converter of a vehicle is provided. The LDC charges and discharges an auxiliary battery supplying power to an electronic load using a high voltage battery for driving the vehicle. The method includes predicting a driving event of a front section of the vehicle based on driving route information and a SOC of the auxiliary battery in a driving event before the driving event of the front section of the vehicle. Output voltage of the low voltage DC-DC converter is converted and output to the electronic load or the auxiliary battery based on a comparison result between a current SOC of the auxiliary battery and the predicted SOC of the auxiliary battery. The predicted SOC is determined by a charge time of when a brake or accelerator pedal is engaged before the driving event of the front section of the vehicle.

Abstract: A method and apparatus for controlling battery state of charge (SOC) in a hybrid electric vehicle are provided to enable the efficient use of energy, the maximization of energy recovery, and the improvement of fuel efficiency and operability without the improvement of capacity and performance of electrical equipment or a main battery in a hybrid electric vehicle. The apparatus includes a collecting device that collects information regarding the slope or the road type and information regarding the vehicle speed. A controller determines charge and discharge modes based on the driving information and determines a charging upper and lower limit SOC based on the road slope or road type information a road section on which the vehicle is traveling and the vehicle speed information in the road section. A charge or discharge command is output based on the charging upper limit SOC and the charging lower limit SOC.