Abstract: A vehicle driving force control method is provided. The vehicle driving force control method includes collecting vehicle driving information, estimating speed of a driving system of a vehicle from the collected vehicle driving information and calculating speed difference between measurement speed of the driving system and the estimated speed of the driving system, obtaining torque command rate information from the calculated speed difference, limiting a variation of reference torque command determined according to the vehicle driving information based on the acquired torque command rate information to determine final torque command, and controlling operation of a vehicle driving device according to the final torque command.

Abstract: A wheel slip control method for a vehicle is provided, and includes estimating equivalent inertia information of a driving system based on operation information of the driving system while a vehicle travels, determining whether the slip of a drive wheel occurs from the estimated equivalent inertia information of the driving system, determining whether the drive wheel is in an uneven wheel slip state where the slip occurs only in one of a left wheel and a right wheel of the drive wheel from a left wheel speed and a right wheel speed detected by a sensor, if it is determined that the slip of the drive wheel occurs, and controlling an operation of a braking device such that a braking force is applied to the vehicle wheel in which the slip occurs, if it is determined that the vehicle wheel is in the uneven wheel slip state.

Abstract: A driving torque command generating apparatus and method of an eco-friendly vehicle are provided. The apparatus and method obtain rapid reaction and response of the vehicle in response to a driving input while effectively reducing NVH problems caused by torsion and backlash of a drive system even during a significant change in driving force caused by the driving input. Torsional state information of a vehicle drive system is obtained from input information regarding a motor speed and a wheel speed detected by a motor speed detector and a wheel speed detector. A motor torque command is generated based on a driving input value input by a driving input value detector and the obtained torsional state information.

Abstract: A system and method for estimating a wheel speed of a vehicle are provided. The system includes a wheel speed sensor that detects a rotation speed of a wheel of the vehicle and a longitudinal acceleration sensor that detects a longitudinal acceleration of the vehicle. A controller converts the longitudinal acceleration to a wheel acceleration, compensates for the converted wheel acceleration based on a compensation value obtained using wheel speed information, integrates the compensated wheel acceleration, and calculates a wheel speed estimation value based on the integrated wheel acceleration.

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: An apparatus and method of realizing a virtual after-burn effect of a vehicle are provided. The method includes receiving vehicle driving information at a controller while the electric vehicle travels, determining, by the controller, characteristics of the virtual after-burn effect based on the input vehicle driving information, outputting, by the controller, a control signal for realizing the virtual after-burn effect based on the determined characteristics of the virtual after-burn effect, and controlling, by the controller, an operation of a realization device for realizing the virtual after-burn effect according to the control signal.

Abstract: A method for implementing virtual internal combustion engine vibration in an electric vehicle includes collecting operation variable information for determining a torque instruction and implementing the virtual internal combustion engine vibration, determining a virtual internal combustion engine vibration characteristic based on the collected operation variable information, determining a vibration torque instruction having the determined virtual internal combustion engine vibration characteristic, correcting the vibration torque instruction by correcting the determined virtual internal combustion engine vibration characteristic of the vibration torque instruction and/or a value of the vibration torque instruction, based on a basic motor torque instruction determined by the collected operation variable information and preset backlash occurring area information, determining a final motor torque instruction using the basic motor torque instruction and the corrected vibration torque instruction.

Abstract: Apparatus and method of producing a virtual after-burn effect using a controller in an electric vehicle, may include receiving, by the controller, vehicle driving information during vehicle driving, determining, by the controller, virtual variable information in an internal combustion engine on the basis of the input vehicle driving information, determining, by the controller, a virtual after-burn effect characteristic on the basis of the virtual variable information in an internal combustion engine, outputting, by the controller, a control signal for producing the virtual after-burn effect on the basis of the virtual after-born effect characteristic information, and controlling, by the controller, an operation of an effect-production apparatus configured for producing the virtual after-burn effect on the basis of the control signal.

Abstract: A method of generating a virtual internal combustion engine vibration in an electric vehicle includes collecting driving variable information, determining a virtual internal combustion engine vibration characteristic on the basis of the collected driving variable information, determining a vibration torque command having the determined virtual engine vibration characteristic, determining a final motor torque command using a basic motor torque command determined from the collected driving variable information and the determined vibration torque command, and controlling the operation of a vehicle driving motor according to the determined final motor torque command.

Abstract: A method for controlling deceleration of a vehicle includes determining, by a controller, a reference deceleration driving distance of the vehicle based on current speed information of the vehicle and stop signal residual time information of a traffic light located ahead of the vehicle, determining, by the controller, whether the reference deceleration driving distance is less than or equal to a distance between the vehicle and the traffic light, and determining, by the controller, a speed profile including an actual deceleration driving distance of the vehicle based on a waiting distance of a waiting vehicle that waits before the traffic light when it is determined that the reference deceleration driving distance is less than or equal to the distance between the vehicle and the traffic light.

Abstract: A cruise control system capable of: determining, by a controller, whether the vehicle is in a cruise mode-on state; determining, by the controller, an operation mode of the vehicle selected by a driver; and when it is determined that the vehicle is in the cruise mode-on state, performing, by the controller, cruise control of the vehicle for the operation mode selected by the driver, and a method therefor. Herein, the operation mode includes an eco mode which performs driving control prioritizing fuel consumption reduction.

Abstract: The present disclosure provides a regenerative brake method of a vehicle, including selecting and inputting one of a plurality of regenerative brake modes by a driver and recognizing the regenerative brake mode selected by the driver, by a controller, determining on/off-state of an active shift control (ASC) function by the controller when the regenerative brake mode selected by the driver is an efficiency-preferred mode or an intermediate mode, controlling a motor speed during regenerative brake and simultaneously performing ASC control for changing a gear stage, by the controller when the ASC function is in the on-state, and controlling gear shift for changing a gear stage without control of a motor speed during regenerative brake, by the controller when the ASC function is in the off-state.

Abstract: A control method of an electric vehicle is proposed. The control method includes generating and realizing a virtual sensation of gear shifting the same as that of a vehicle equipped with a multi-speed transmission, in the electric vehicle without a multi-speed transmission. In particular, virtual gear shift intervention torque and limit torque for each virtual gear shift stage are determined from input variables through a virtual gear shift model by inputting vehicle driving information collected from a vehicle during operation. Then the determined virtual shift intervention torque, the determined limit torque for each virtual shift stage, and motor torque command are applied to operate a motor, thereby realizing the virtual sensation of multi-speed gear shifting.

Abstract: A method of controlling traveling of an electric vehicle is provided. The method includes generating a motor torque command using a basic torque command and a virtual gear-shift intervention torque for generating a feeling of real gear shifting, while an electric vehicle travels. A motor is operated for driving the electric vehicle according to the generated motor torque command to generate the feeling thereof. Ingenerating the feeling thereof, during at least a portion of time during which the feeling thereof is generated, boost control of the motor operation is performed such that a motor torque exceeding an allowable torque of the motor is generated, and thus the generation of the feeling thereof and the boost control are performed in conjunction with each other.

Abstract: A control method of an electric vehicle is provided. The method includes generation of a virtual sensation of gear shifting of an electric vehicle capable of freely, directly changing and adjusting variables related to generation of the virtual sensation of gear shifting to provide drivers with preferred virtual sensation of gear shifting. The virtual sensation of gear shifting is generated according to driver's driving input values and vehicle conditions based on variable values related to the virtual sensation of gear shifting generation preset by a driver to simulate multi-speed gear shifting that the driver may sense when shifting in a vehicle having a multi-speed transmission, while driving an electric vehicle without the multi-speed transmission.

Abstract: A driving torque command generating apparatus of a vehicle may include: a driving input sensor configured to detect a driving input value of a driver, including a pedal input value, in response to a manipulation of an accelerator pedal of the vehicle; a motor speed sensor configured to detect a motor speed of a drive motor of the vehicle; a wheel speed sensor configured to detect a wheel speed of a wheel of the vehicle; and a controller configured to obtain torsional state observation value information, which indicates a torsional state observation value derived from a vehicle drive system of the vehicle, according to the detected motor speed, the detected wheel speed, and a previously-generated motor torque command, and to generate a motor torque command based on the detected driving input value and the obtained torsional state observation value information.

Abstract: An active shift control method for a power-off downshift of the hybrid vehicle is provided. The method includes increasing the torque of an engagement clutch in a transmission while disengaging a disengagement clutch by reducing the torque of the disengagement clutch in the transmission, when the shift of a power-off downshift is requested. A motor speed is adjust for a transmission input shaft rotary speed to reach a predetermined target stage synchronization speed of a target stage after shifting, and the torque of the engagement clutch is maintained in a state where the disengagement clutch has been disengaged. The engagement of the engagement clutch is completed by increasing the torque of the engagement clutch when the transmission input shaft rotary speed has reached the target stage synchronization speed.

Abstract: The present disclosure provides an electronic stability control method for a vehicle for performing vehicular electronic stability control simply by adjusting driving force and braking power that are generated by a driving device of the vehicle without use of a driving force distributing method between front, rear, left, or right vehicle wheels. To this end, the vehicular electronic stability control method includes determining a vehicular state value indicating a driving state of a vehicle from information collected from the vehicle, comparing the determined vehicle state value with a first reference value, and controlling an operation of a driving device for generating driving force for driving the vehicle by the controller when the vehicle state value is greater than the first reference value to adjust driving force for preventing understeer or oversteer of the vehicle.

Abstract: The present disclosure provides a method of controlling driving of a vehicle by estimating a road frictional coefficient, the method including distributing torque to a front wheel and a rear wheel to satisfy required torque for driving, by a controller, in a four-wheel drive (4WD) vehicle including a front wheel driving device and a rear wheel driving device installed therein, and performing torque excitation control for increasing torque applied to one of the front wheel and the rear wheel to which the torque is distributed while the vehicle is driven, and simultaneously, changing torque applied to a remaining one of the front wheel and the rear wheel in such a way that the sum of front wheel torque and rear wheel torque satisfies required torque, by the controller.

Abstract: The present disclosure provides a method of estimating a weight of a vehicle, including determining whether a current state is an enable state in which a vehicle stoppage event due to brake occurs from vehicle driving information, by a weight estimating system, when the current state is the enable state, removing noise by filtering an acceleration signal input from an acceleration sensor at a moment when the vehicle is stopped, by the weight estimating system, determining a period value of an acceleration signal from the acceleration signal from which noise is removed, by the weight estimating system, and estimating the weight of the vehicle using information on the determined period value, by the weight estimating system.