Power doors for motor vehicle with hold open and sleep control systems and method
AssigneeMagna Closures Inc.
InventorsSebastian Prengel, Martin Dannemann, Roman Paerschke
Life of this patent
Estimating the term…
Abstract
A system and method for controlling motion of a door are provided. The door is moveable between an open position and a closed position and has a balanced position whereat the door does not move towards the open position nor the closed position under an effect of gravity. The system includes a power actuator for moving the door to a partially open position between the open position and the closed position. The power actuator is adapted to allow the door to move to the balanced position after the power actuator has moved the door to the partially open position.
Claims18
A system for controlling motion of a door, the door moveable between an open position and a closed position and having a balanced position whereat the door does not move towards the open position nor the closed position under an effect of gravity, comprising:
- a power actuator for moving the door to a partially open position between the open position and the closed position, wherein the power actuator is adapted to allow the door to move to the balanced position after the power actuator has moved the door to the partially open position;
- and
- a controller configured to control the power actuator to move the door to the balanced position at an operation rate below a normal rate of operation of the power actuator.
A method for controlling motion of a door, the door moveable between an open position and a closed position and having a balanced position whereat the door does not move towards the open position nor the closed position under an effect of gravity, the method comprising the steps of:
- controlling a power actuator for moving the door to a partially open position between the open position and the closed position in a normal powered operation mode;
- holding the door in the partially open position;
- and
- allowing the door to move to the balanced position after holding the door in the partially open position by controlling the power actuator to move the door to the balanced position at an operation rate below a normal rate of operation of the power actuator.
A power actuator for controlling motion of a door, the door moveable between an open position and a closed position and having a balanced position whereat the door does not move towards the open position nor the closed position under an effect of gravity, the power actuator comprising:
- a drive mechanism operatively coupled to one of the door and a vehicle body for imparting a motion of the door;
- a geartrain assembly operatively the drive mechanism;
- and
- an electric motor operatively coupled to the geartrain assembly, wherein the electric motor is adapted to control the motion of the door in a normal powered operation mode to move the door to stopped position between the open position and the closed position, to control the door in the stopped position in a hold open mode, and to control the motion of the door in a balancing mode to facilitate motion of the door to the balanced position by controlling the power actuator to move the door to the balanced position at an operation rate below a normal rate of operation of the power actuator.
Dependencies are inferred from the claim text.