Abstract: A method of controlling motor torque for learning a resolver offset of an electric vehicle includes steps of: determining whether a condition for offset learning mounted to a main drive motor and to an auxiliary drive motor is satisfied; controlling an output torque of a learning drive motor, which includes a resolver to perform the offset learning among the main drive motor and the auxiliary drive motor to a zero torque, when the condition for performing the offset learning is satisfied; increasing an output torque of a non-learning drive motor, which includes a resolver not performing the offset learning among the main drive motor and the auxiliary drive motor by a torque reduction amount, when the learning drive motor outputs zero torque; and performing the offset learning of the resolver mounted to the learning drive motor.

Abstract: A method of guiding an accelerator pedal of an electric vehicle includes calculating a target instant fuel efficiency, calculating a target torque corresponding to the target instant fuel efficiency, calculating a target open degree of the accelerator pedal based on the target torque, receiving an actual open degree of the accelerator pedal manipulated by a driver, and displaying the target open degree of the accelerator pedal and the actual open degree of the accelerator pedal.

Abstract: A method of controlling motor torque for learning a resolver offset of an electric vehicle includes steps of: determining whether a condition for offset learning mounted to a main drive motor and to an auxiliary drive motor is satisfied; controlling an output torque of a learning drive motor, which includes a resolver to perform the offset learning among the main drive motor and the auxiliary drive motor to a zero torque, when the condition for performing the offset learning is satisfied; increasing an output torque of a non-learning drive motor, which includes a resolver not performing the offset learning among the main drive motor and the auxiliary drive motor by a torque reduction amount, when the learning drive motor outputs zero torque; and performing the offset learning of the resolver mounted to the learning drive motor.

Abstract: The optimum headway distance setting method may include determining whether or not to stop the speed adjustment operation for a vehicle by a driver of the vehicle by a control unit in the state detecting a front vehicle 1F which is traveling in front of the vehicle; determining whether or not to be stabilization of a headway distance between the vehicle and the front vehicle by the control unit when the speed adjustment operation for the vehicle is stopped; setting the optimum headway distance configured to set the stabilized headway distance as an optimum headway distance according to a traveling propensity of the driver by the control unit, and stores the optimum headway distance in the control unit.

Abstract: A method of controlling vibration reduction of a vehicle is capable of efficiently reducing vibration occurring when entering a P range on a ramp. The method includes: when an input to a parking range is received, determining whether or not a predetermined condition for entering a vibration reduction control mode is satisfied; when the entering condition is satisfied, calculating a motor torque for reducing vibration due to backlash by using the driving information; controlling a driving motor so as to output the calculated motor torque; controlling the parking device such that the parking range is engaged; determining whether or not a brake is released; and if the brake is released, reducing a motor torque output by the driving motor so that vibration due to the backlash is reduced.

Abstract: A system variably controls braking energy regeneration in a vehicle by reflecting a compensation torque depending on a difference in deceleration based on a road gradient when the vehicle travels over a downhill section or an uphill section of a road. The system includes a longitudinal sensor to receive the road gradient and compare the road gradient to a specific grade, and then compensate for the road gradient using a grade resistance value and a deceleration based value depending on a difference between deceleration manually set by a driver using a paddle shift and an actual vehicle deceleration. The system may include a controller to output a coasting torque as a correction torque that is a sum of the grade resistance value and the deceleration based value.

Abstract: Disclosed are a vehicle equipped with an electric motor, which is capable of preventing damage to a mechanical axle-fixing device when a parking range is selected under a specific condition, and a parking control method therefore. The parking control method includes calculating output torque of the electric motor to stop the vehicle when a parking (P) range is selected in the situation in which a specific condition is satisfied, controlling the electric motor in response to the output torque, and activating a driving shaft fixing unit when the vehicle is stopped by the controlling.

Abstract: An apparatus for controlling energy regeneration variably capable of performing a variable control based on a deceleration event discrimination using a map information input as well as a driver's operation may include a controller configured to change a preset energy regeneration stage variably to a corresponding regenerative braking control by sensing an event for an energy regeneration stage and perform the corresponding regenerative braking control, and a generator configured to generate power according to the regenerative braking control.

Abstract: A method of guiding an accelerator pedal of an electric vehicle includes calculating a target instant fuel efficiency, calculating a target torque corresponding to the target instant fuel efficiency, calculating a target open degree of the accelerator pedal based on the target torque, receiving an actual open degree of the accelerator pedal manipulated by a driver, and displaying the target open degree of the accelerator pedal and the actual open degree of the accelerator pedal.

Abstract: A method of controlling vibration reduction of a vehicle is capable of efficiently reducing vibration occurring when entering a P range on a ramp. The method includes: when an input to a parking range is received, determining whether or not a predetermined condition for entering a vibration reduction control mode is satisfied; when the entering condition is satisfied, calculating a motor torque for reducing vibration due to backlash by using the driving information; controlling a driving motor so as to output the calculated motor torque; controlling the parking device such that the parking range is engaged; determining whether or not a brake is released; and if the brake is released, reducing a motor torque output by the driving motor so that vibration due to the backlash is reduced.

Abstract: A system and method of applying a coast regeneration torque of a vehicle are provided. The method corrects a magnitude of slip (or a slip ratio) which is considered when a coast regeneration torque is to be variably controlled while the vehicle is coasting.

Abstract: An apparatus for controlling a regenerative braking of a vehicle includes a sensor detecting information about forward driving environment, and a controller configured to: calculate an estimated time-to-collision between a forward vehicle and an ego vehicle when the forward vehicle is detected by the sensor, compare a first regenerative braking level determined based on the estimated time-to-collision with a second regenerative braking level determined based on distance information about the forward vehicle; determine a final regenerative braking level depending on the compared result; and control a regenerative braking drive based on the determined final regenerative braking level.

Abstract: Disclosed are a vehicle equipped with an electric motor, which is capable of preventing damage to a mechanical axle-fixing device when a parking range is selected under a specific condition, and a parking control method therefor. The parking control method includes calculating output torque of the electric motor to stop the vehicle when a parking (P) range is selected in the situation in which a specific condition is satisfied, controlling the electric motor in response to the output torque, and activating a driving shaft fixing unit when the vehicle is stopped by the controlling.

Abstract: The optimum headway distance setting method may include determining whether or not to stop the speed adjustment operation for a vehicle by a driver of the vehicle by a control unit in the state detecting a front vehicle 1F which is traveling in front of the vehicle; determining whether or not to be stabilization of a headway distance between the vehicle and the front vehicle by the control unit when the speed adjustment operation for the vehicle is stopped; setting the optimum headway distance configured to set the stabilized headway distance as an optimum headway distance according to a traveling propensity of the driver by the control unit, and stores the optimum headway distance in the control unit.

Abstract: An apparatus for controlling energy regeneration variably capable of performing a variable control based on a deceleration event discrimination using a map information input as well as a driver's operation may include a controller configured to change a preset energy regeneration stage variably to a corresponding regenerative braking control by sensing an event for an energy regeneration stage and perform the corresponding regenerative braking control, and a generator configured to generate power according to the regenerative braking control.

Abstract: An apparatus for controlling a regenerative braking of a vehicle includes a sensor detecting information about forward driving environment, and a controller configured to: calculate an estimated time-to-collision between a forward vehicle and an ego vehicle when the forward vehicle is detected by the sensor, compare a first regenerative braking level determined based on the estimated time-to-collision with a second regenerative braking level determined based on distance information about the forward vehicle; determine a final regenerative braking level depending on the compared result; and control a regenerative braking drive based on the determined final regenerative braking level.

Abstract: A system and method of applying a coast regeneration torque of a vehicle are provided. The method corrects a magnitude of slip (or a slip ratio) which is considered when a coast regeneration torque is to be variably controlled while the vehicle is coasting.

Abstract: A system for variably controlling braking energy regeneration by reflecting a compensation torque depending on a difference in deceleration if the difference in deceleration depending on a road gradient occurs due to an entry of a vehicle into a downhill road or an uphill road while the vehicle is coasting on a flatland at a defined deceleration depending on the regeneration step manually set by a driver using a paddle shift, the system may include an operation condition determiner, a grade resistance based FF controller, a deceleration based FB controller, and a coasting torque reflector.