Open/close control system for a vehicle slide door

A vehicle having an open/close control system for determining an inclination of an axis of said vehicle relative to a horizontal comprising:

• a vehicle body having a side and an axis;
• a slide door mounted on said side of said vehicle body, said slide door being movable in one of an opening direction and a closing direction in response to a driving force provided by a motor and transmitted through at least a clutch and a cable;
• and
• an open/close control system mounted on at least one of said vehicle body and said slide door, said open/close control system including:
• a slide door control unit configured to receive a plurality of input signals, analyze said plurality of input signals to determine a desired operating state of said motor, and outputting corresponding control signals to at least said motor;
• and
• an encoder configured to generate output signals representative of an amount of movement of said slide door in one of said opening direction and said closing direction;
• wherein, during one of an opening operation and a closing operation of said slide door, said slide door control unit stops said motor from supplying said driving force and utilizes said output signals from said encoder to determine at least one of a velocity component of said slide door, an acceleration component of said slide door, and a change in a direction of movement of said slide door, and
• wherein said slide door control unit is adapted to use said at least one of a velocity component of said slide door, an acceleration component of said slide door, and a change in a direction of movement of said slide doors to determine an inclination of said axis of said vehicle body relative to a horizontal.

An open/close control system, for a vehicle slide door mounted on a side of a vehicle and movable in one of an opening direction and a closing direction, comprising:

• a drive source;
• an opening/closing mechanism adapted to move said slide door in one of said opening direction and said closing direction;
• a clutch which transmits a drive force of said drive source to said opening/closing mechanism;
• a movement signal generator adapted to detect a movement of said slide door caused by a gravitational force acting on said slide door and to generate an output signal in response to an amount of movement of said slide door in one of said opening direction and said closing direction;
• and
• a slide door controller which controls a drive force transmitted to said opening/closing mechanism by controlling said drive source and said clutch, said slide door controller receiving said output signal from said movement signal generator and increasing power supplied to said opening/closing mechanism in response to increased opening/closing force due to the angle of inclination of the vehicle.