Patent ID: 8321091
Filing Date: 2012-11-27
Classification: B62D

Abstract:
1. A car connected to at least one trailer comprising: a driving part controlling a velocity and a direction of the car; a backward-motion control terminal outputting a first backward-motion control signal corresponding to at least one of a backward velocity and a backward direction of the last trailer according to a user's operation; a control signal converter converting the first backward-motion control signal to a second backward-motion control signal which corresponds to at least one of a backward velocity and a backward direction of the car and makes the last trailer move backward as at least one of the backward velocity and the backward direction corresponding to the first backward-motion control signal; and a backward-motion controller controlling the driving part on the basis of the second backward-motion control signal so that the last trailer moves backward by at least one of the backward velocity and the backward direction corresponding to the first backward-motion controlling signal wherein the first backward-motion control signal comprises a first linear velocity and a first angular velocity for the last trailer, the second backward-motion control signal comprises a second linear velocity and a second angular velocity corresponding to a backward-motion of the car, and the control signal converter converts the first backward-motion control signal to the second backward-motion control signal by the following equation: wherein v