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Control apparatus for powered vehicle door systems
| Details |
Inventors: DeLand, Daniel L.; Heimnick, Paul; Moy, Curtis T.; Zuckerman, Lawrence H.; Grossman, David G.; Schuler, Kurt P.;
Assignee: Masco Industries, Inc. (Taylor, MI)
Primary Examiner: Hofsass; Jeffery
Assistant Examiner: Hill; Andrew
Attorney, Agent or Firm: Harness, Dickey & Pierce
Control systems including control circuitry and optional communications systems for operating a sliding power-operated member of an automotive vehicle. A powered sliding door in an automotive vehicle, such as a van, moves along a predetermined path of travel between a closed position and a fully open position relative to the body of the vehicle. Such a sliding door may be provided with one or more electrically-operated actuators for performing functions associated with the door, such as power opening and closing the door, power unlatching the door, power locking and unlocking the door, and power clamping and unclamping the door in a soft or low-momentum manner. The invention is directed toward improved control systems and circuitry for operating such power-sliding door systems. One such control system employs a wireless communications link between the door and body, which is preferably implemented using radio frequency communication signals containing digitally encoded control signals. Control circuitry is preferably provided in the body and the door of the vehicle for supervising and carrying out the foregoing functions in an orderly manner in response to requests generated locally at the door or remotely by the driver from the console of the vehicle. A second, simpler, control system provides electrically-actuated mechanisms for unlatching the door and operating the door lock without the use of either a wireless communication system or a retractable electrical cable interconnecting the sliding door to the vehicle body. |
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DETAILED DESCRIPTION This invention relates to control apparatus for controlling powered sliding members on automotive vehicles and, more particularly, to powered sliding door systems for van type vehicles having a door opening in a side wall thereof.
In van applications of the invention, a sliding door is moved generally parallel to the side wall of the van during its initial closing movement and for a major portion of its full closing movement, as well as during a major portion of its full opening movement, including its final opening movement.
Typically, the sliding door moves generally toward and generally away from the plane of the door opening during a portion of its respective final closing and initial opening movements, so as to be flush with the side wall when fully closed, and so as to be alongside of, and parallel to, the side wall, generally rear of the door opening, when fully opened.
In sliding door systems of the type mentioned above, upper and lower forward guide rails are attached to the top and bottom portions, respectively, of the door opening, and a rear guide rail is attached to the exterior of the side wall, at an elevation approximately midway between the elevation of the upper and lower forward guide rails.
The respective forward end portions of the various guide rails are curved inwardly of the body of the van, and bracket and roller assemblies are fastened to the respective upper and lower forward ends of the sliding door, as well as to an intermediate position at the rear end of the sliding door.
Such bracket and roller assemblies are slidingly supported in the guide rails to guide the door through its opening and closing movements.
Various portions of the opening and closing movements of van sliding doors have different power requirements.
Thus, the initial door closing movement and a major portion of the subsequent door closing movement are high displacement/low force translational movements, during which little force is required to achieve large door movements since only frictional resistance and grade-caused gravity resistances must be overcome
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