Movable or removable closures – With operator for movably mounted closure – Operator drives closure along guide
Reexamination Certificate
2000-11-17
2004-05-04
Strimbu, Gregory J. (Department: 3634)
Movable or removable closures
With operator for movably mounted closure
Operator drives closure along guide
Reexamination Certificate
active
06729071
ABSTRACT:
TECHNICAL FIELD
The invention relates to a device for automatically controlling the opening and closing of a slide door for a vehicle in which the slide door is installed on a side face of the vehicle and the like in order to automatically open and close the slide door by means of drive sources such as motors and the like.
BACKGROUND TECHNOLOGY
A device for automatically controlling the opening and closing of a slide door of a vehicle has been known, which moves or open and close the slide door so supported as to slide on a side face of the vehicle along its front and back direction by means of motor and the like. According to the device mentioned above, a user intentionally operates an operation means installed near a door lever and a driver's seat to start the drive source, so that the slide door opens and closes through driving force of the drive source.
Also, there is a trigger means in place of the operation means, which trigger means detects that the slide door moves for a predetermined distance by a hand, starts the drive source at a chance of a movement, and exchanges the manual force to a driving force of the drive source in order to automatically open and close the slide door.
However, according to the conventional device described above, a heavy weight of such slide door and resultantly a load used to drive the heavy slide door is apt to be effected by its position and direction of opening and closing. In particular, when the vehicle considerably slants in its front and back direction along the moving track of the slide door, it is necessary to use a very large hosting force of weight of the slide door and a minus load necessary to break such hoisting force. So it has been difficult to design the automatic opening and closing control device that sufficiently takes into safety consideration
That is, if a load of the slide door is large and a change range of the load is wide, it is necessary to quickly handle such wide range of load change of an output power of a drive means with a sufficient allowance. However, such door drive means has small sensibility for small change of load, so it has been difficult to control a large output power in consideration of safety and preventing a pinch in the slide door.
In particular, when the start time of power drive for slide door is adapted to be automatically determined, it is necessary to have a safety counter measure in consideration of all and any situations of the vehicles, such as a door open and close direction and an open and close position, and a vehicle posture when the slide door opens and closes.
For example, when a chance of exchanging a manual force to an electric power is determined by a door traveled distance, it is very difficult to firmly recognize that manual force moves the slide door. For example, when a slide door slowly moves after the vehicle stops or stands on a moderate slope and the door opens, a drive system for the door automatically changes to an automatic drive one. Consequently, if an auto drive is not used automatic driving force is effected. Such posture of the door widen the door load change width or range or door load itself becomes large, so that it becomes difficult to change a firm manual force for the door to an automatic force.
Specifically because a door traveling direction is straight and along the front and back direction of the vehicle, a door weight effects largely to a control of the moving door when a vehicle stands on a slope. Consequently, it is very important to know, before opening and closing the door, the posture of the parking vehicle, that is, a slant degree of the slope, if any, on which the vehicle is parked.
This invention intends to solve such problem of the prior art. This invention thus can flexibly and safely control the door opening and closing. Another purpose of this invention is to provide a device for automatically controlling the opening and closing of the slide door for the vehicle, which effectively carries out a change of drive system from a manual one to an automatic one, correctly changes control conditions and control values according to the position of the slide door, and controls it safely and rapidly, and instantly discriminates an existence of slide door pinch.
SUMMARY OF THE INVENTION
In order to attain the purposes of this invention, the device for automatically controlling the opening and closing of the slide door for the vehicle comprises a door drive means having a reversible motor, a motor load detection means for detecting a motor load of the door drive means, a door position detection means for detecting a position of the slide door which is guided by a the guide track within a range from a full-open to a full-close positions of the slide door, a door speed detection means for measuring a movement speed of the slide door, a memory means for memorizing the motor load of each position of the slide door of the vehicle standing at its normal posture (horizontal level) concerning, and a motor control means for controlling power supplied to the motor base on the defected motor speed and; a deviation between a motorload memorized correspondingly to a predetermined position of the slide door and a motor load for moving the slide door at the present position.
Also, in order to attain the purposes of this invention, the device for automatically controlling the opening and closing of the slide door for the vehicle comprises a door drive means having a reversible motor, an electromagnetic clutch for intermittently connecting the motor to the slide door so as to tranfer the driving force of the motor to the slide door, a door speed detection means for measuring the movement speed of the slide door, and an electric door drive start means for engaging the electro-magnetic clutch to connect the motor to the slide door and for driving the motor, when the movement speed detected by the door speed detection means is within a predetermined range of a movement speed previously set while stopping the motor.
Still also, in order to attain the purposes, the device for automatically controlling the opening and closing of the slide door for the vehicle comprises a door drive means having a reversible motor, a door position detection means for detecting a position of the slide door guided by the guide track within a range from a full-open to a full-close positions of the slide door, a door existence area dividing means for dividing the range from a full-open position to a full-close position on the basis of the position data detected by the door position detection means, into the predetermined plural door existence areas, a door change element detection means for detecting a door change element by changing the sampling resolutions of the data detection position at each door existence area, and a motor control means for controlling the motor by differently setting the control standards of the door change elements at each door existence area.
Still also, in order to attain the purposes, the device for automatically controlling the opening and closing of the slide door for the vehicle comprises a door drive means having a reversible motor, a motor load detection means for detecting a motor load of the door drive means on the basis of a drive current or a drive voltage of the motor, or the electric values of the drive current and the drive voltage, a memory means for memorizing the electric value of the motor load to open or close the slide door as the vehicle at a level posture, and a slope judgement means for calculating a deviation of the motor load by comparing the electric value of the motor load at a level posture, which value is memorized in the memory means, with another electric value of the motor load detected in ordinary opening or closing the slide door and for discriminating the posture of the vehicle in opening or closing the slide door on the basis of the calculated deviation between both electric values of the motor load.
Still also, in order to attain the purposes, the device for automatically controlling the opening and closing of the slide door for t
Kawanobe Osamu
Shigematsu Kouichi
Ohi Seisakusho Co. Ltd.
Strimbu Gregory J.
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