SWING DOOR ACTUATION SYSTEM HAVING A POWER SWING DOOR ACTUATOR AND A CONTROL SYSTEM

• US 20160052375A1
• Filed: 11/03/2015
• Published: 02/25/2016
• Est. Priority Date: 07/27/2011
• Status: Active Grant

• Current Assignee: Magna Closures Company Limited (Magna International Incorporated)
• Original Assignee: Magna Closures Company Limited (Magna International Incorporated)
• Inventors: Scheuring, Joseph Felix, Leonard, Jube, Cosmin, Dan, Boin, Luciano
• Granted Patent: US 9,573,446 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60J 5/047 characterised by the opening or closing movement
• CPC Class Codes: E05F 15/614 operated by meshing gear wheels, one of which being mounted at the wing pivot axis; operated by a motor acting directly on the wing pivot axis
• CPC Class Codes: E05F 15/622 using screw-and-nut mechanisms
• CPC Class Codes: E05F 15/63 operated by swinging arms
• CPC Class Codes: E05Y 2201/696 Screw mechanisms
• CPC Class Codes: E05Y 2800/11 Manual wing operation
• CPC Class Codes: E05Y 2900/531 Doors
• CPC Class Codes: E05Y 2900/546 Tailgates
• CPC Class Codes: Y10T 74/18568 Reciprocating or oscillating to or from alternating rotary
• CPC Class Codes: Y10T 74/18696 including means to selectively transmit power [e.g., clutch, etc.]

Abstract

A swing door actuation system for moving a door about a pivot axis between open closed positions relative to a vehicle body. The system includes a power swing door actuator having a housing connectable to one of the swing door and the vehicle body, an extensible member that moves relative to the housing, and connects to the other of the swing door and the vehicle body, a motor connected to a gear train, and a normally engaged clutch. The motor is operatively connected to a clutch input end through the gear train. The output end is operatively connected to the extensible member. The clutch is disengageable to disconnect the motor from the extensible member. The clutch has a slip torque that is sufficiently high to prevent movement of the door when the door is exposed to less than a selected external torque and the motor is stopped.

Claims

1. A swing door actuation system for moving a vehicular swing door about a pivot axis between an open position and a closed position relative to a vehicle body, the swing door actuation system comprising:

a power swing door actuator including a housing connectable to one of the swing door and the vehicle body, an extensible member that is extendible and retractable relative to the housing and is connectable to the other of the swing door and the vehicle body, a motor operatively connected to a gear train, and a clutch having an input end and an output end, wherein the motor is operatively connected to the input end through the gear train and the output end is operatively connected to the extensible member, wherein the clutch operatively connects the motor to the extensible member without the application of electrical power to the clutch and the clutch operatively disconnects the motor from the extensible member with the application of electrical power to the clutch, and wherein the clutch has a selected slip torque that is sufficiently high to prevent movement of the door when the door is exposed to an external torque that is less than a selected value and the motor is stopped; and

a control system configured to drive the motor while the clutch is engaged so as to move the door in response to indication that a user wishes to initiate a powered opening or powered closing of the swing door, and configured to disengage the clutch in response to an indication that a user wishes to manually move the door.

2. The swing door actuation system as claimed in claim 1, wherein the power swing door actuator further comprises an internally threaded member and a lead screw that is matable with the internally threaded member to permit relative rotation between lead screw and the internally threaded member, wherein the output end of the clutch is connected to one of the lead screw and the internally threaded member and wherein the other of the lead screw and the internally threaded member is connected to the extensible member and is slidable relative to the housing, wherein rotation of the output end of the clutch drives rotation of said one of the lead screw and the internally threaded member, which in turn drives sliding movement of said other of the lead screw and the internally threaded member relative to the housing.