Method and apparatus for determining rough road and system including apparatus

An apparatus for determining a rough road, the apparatus comprising:

• a receiver configured to receive, in real-time, each of a motor torque value input to a vehicle and revolutions per minute (rpm) measurement information output by the vehicle;
• a disturbance calculator configured to determine disturbance estimation information using the input motor torque value and the motor RPM measurement information;
• a signal analyzer configured to analyze a signal using the disturbance estimation information;
• and
• a rough road determiner configured to determine whether a road surface on which the vehicle travels is the rough road using a result of analyzing the signal.

A system for determining a rough road, the system comprising:

• a vehicle including at least one motor, a wheel, and revolutions per minute (rpm) measurement sensor;
• and
• a rough road determination apparatus configured to determine whether a road surface on which the vehicle travels is the rough road,
• wherein the rough road determination apparatus includes:
• a receiver configured to receive a motor torque value input to the vehicle and to receive, in real-time, motor RPM measurement information of the vehicle from the RPM measurement sensor;
• a disturbance calculator configured to determine disturbance estimation information using the input motor torque value and the motor RPM measurement information;
• a signal analyzer configured to analyze a signal using the disturbance estimation information;
• and
• a rough road determiner configured to determine whether the road surface on which the vehicle travels is the rough road using a result of analyzing the signal.