The present invention relates to an apparatus for controlling ride comfort in a vehicle driven by a motor, and more particularly, to a vehicle driven by a motor, such as a fuel cell vehicle or an electric vehicle, by using an inverter-motor driving system according to various driving modes. It relates to a ride comfort control device that generates vibration and engine sound. An embodiment of an apparatus for controlling ride comfort in a vehicle driven by a motor according to the present invention includes an input unit to which driving mode information or sound mode information of the vehicle is input; an operation mode controller that generates a motor torque ripple command according to the operation mode information received from the input unit, controls the motor to vibrate, and receives speed information from the motor; and a sound mode generator configured to generate a virtual engine sound by using the sound mode information received from the input unit and the speed information received from the driving mode controller. may include. An embodiment of a method for controlling ride comfort in a vehicle driven by a motor according to the present invention includes an input step of inputting driving mode information and sound mode information of the vehicle to an input unit; a ride comfort control step in which the driving mode controller generates a motor torque ripple command for vibrating the motor using the driving mode information received from the input unit, and receives speed information from the motor; and an engine sound reproducing step in which a sound mode generator generates a virtual engine sound by using the sound mode information received from the input unit and the speed information received from the driving mode controller. may include.
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