Clutch
First Claim
Patent Images
1. A clutch comprising:
- two clutch parts which can be brought into engagement in form fitted manner for the torque transfer; and
a shift member which is movable in a first direction to bring the clutch parts out of engagement and is movable in a second direction to bring the clutch parts into engagement,wherein a motor is provided for the movement of the shift member in the first direction and a spring element is provided for the movement of the shift member in the second direction, and wherein a triggering of the spring element takes place by an actuation of the motor in the same direction of rotation which previously effects a tensioning of the spring element.
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Abstract
The invention relates to a clutch having two clutch parts which can be brought into engagement in form fitted manner for the torque transfer; and a shift member which is movable in a first direction to bring the clutch parts out of engagement and is movable in a second direction to bring the clutch parts into engagement. A motor is provided for the movement of the shift member in the first direction and a spring element is provided for the movement of the shift member in the second direction.
46 Citations
20 Claims
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1. A clutch comprising:
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two clutch parts which can be brought into engagement in form fitted manner for the torque transfer; and a shift member which is movable in a first direction to bring the clutch parts out of engagement and is movable in a second direction to bring the clutch parts into engagement, wherein a motor is provided for the movement of the shift member in the first direction and a spring element is provided for the movement of the shift member in the second direction, and wherein a triggering of the spring element takes place by an actuation of the motor in the same direction of rotation which previously effects a tensioning of the spring element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A powertrain for a motor vehicle having a permanently driven primary axle, comprising:
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a drive unit for the generation of a drive torque; a first clutch for the transfer of a variable portion of the drive torque to a secondary axle of the motor vehicle; a second clutch for the deactuation of a torque transfer section of the powertrain arranged between the first clutch and the second clutch, when the first clutch is opened; and a control unit for the automatic control of the first clutch, with the control unit being connected to at least one sensor for the detection of a wheel slip at the primary axle, wherein the second clutch includes a clutch having two clutch parts which can be brought into engagement in form fitted manner for the torque transfer; a shift member which is movable in a first direction to bring the clutch parts out of engagement and is movable in a second direction to bring the clutch parts into engagement, and wherein a motor is provided for the movement of the shift member in the first direction and a spring element is provided for the movement of the shift member in the second direction, and wherein a triggering of the spring element takes place by actuation of the motor in the same direction of rotation which effects a tensioning of the spring element. - View Dependent Claims (18)
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19. A clutch comprising:
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two clutch parts which can be brought into engagement in form fitted manner for the transfer of torque; a shift member which is moveable in a first direction to bring the clutch parts out of engagement and is movable in a second direction to bring the clutch parts into engagement; a motor for moving the shift member in the first direction; a spring element for moving the shift member in the second direction; and a ramp mechanism arranged between the motor and the shift member, the ramp mechanism includes at least one actuating ramp or actuating projection and at least one counter-element which is movable relative to the actuating ramp or to the actuating projection and which cooperates with the actuating ramp or with the actuating projection such that the shift member is moved in the first direction on a running of the counter-element onto the actuating ramp or onto the actuating projection against the restoring force of the spring element.
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20. A clutch comprising:
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two clutch parts which can be brought into engagement for the transfer of torque; a shift member which is moveable in a first direction to bring the clutch parts out of engagement and in a second direction to bring the clutch parts into engagement; a motor for moving the shift member in the first direction; a spring element for moving the shift member in the second direction, wherein a triggering of the spring element takes place by actuation of the motor in a direction of rotation reversed with respect to the direction which previously effects a tensioning of the spring element; and a return mechanism arranged between the motor and the shift member which includes a driver device which can be brought into engagement with the shift member to draw the shift member in the first direction against the restoring force of the spring element, wherein the driver device includes a spindle driven by the motor and a spindle nut seated on the spindle, the spindle nut having a driver flange which can be brought into engagement with a projection on the shift member by rotation of the spindle nut in one direction and can be released from engagement with the projection by rotation of the spindle nut in the opposite direction.
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Specification