Vehicle door system with power drive module
First Claim
1. An automotive door system comprising:
- a door;
a hinge configured to support the door;
a switch configured to provide a first input in response to a user request to automatically open or close the door;
a power drive module including;
a housing;
a motor;
a gearbox operatively coupled to the motor by a shaft member;
an output shaft operatively connected to the door and the gearbox, the output shaft configured to provide an output torque that corresponds to a desired motion of the door about the hinge; and
a brake assembly operatively connected to the shaft member, the brake assembly having a normally closed position in which the shaft member is grounded to the housing, the brake assembly includes an open position, the brake assembly being in the open position in a door closing mode and a door opening mode, the shaft member configured to be rotatable relative to the housing in the open position, the brake assembly including a holding torque in the normally closed position, and being configured such that a torque applied to the brake assembly above the holding torque permits the shaft member to rotate in either direction;
a position sensor configured to detect rotation of the output shaft and to provide a second input in response thereto, the second input corresponding to a manually initiated movement of the door pivoting about the hinge that exceeds the holding torque of the brake assembly in the normally closed position.
3 Assignments
0 Petitions
Accused Products
Abstract
An automotive door system includes a hinge that supports a door. A switch provides a first input in response to a user request to automatically open or close the door. An output shaft of a power drive module is connected to the door and a gearbox to provide an output torque that corresponds to a desired motion of the door about the hinge. A brake assembly is connected to a shaft member and has a normally closed position in which the shaft member is grounded to the housing and an open position that corresponds to one of a door closing mode and a door opening mode. A position sensor detects rotation of the output shaft and provides a second input in response thereto, which corresponds to a manually initiated movement of the door that exceeds a slip torque of the brake assembly in the normally closed position.
15 Citations
18 Claims
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1. An automotive door system comprising:
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a door; a hinge configured to support the door; a switch configured to provide a first input in response to a user request to automatically open or close the door; a power drive module including; a housing; a motor; a gearbox operatively coupled to the motor by a shaft member; an output shaft operatively connected to the door and the gearbox, the output shaft configured to provide an output torque that corresponds to a desired motion of the door about the hinge; and a brake assembly operatively connected to the shaft member, the brake assembly having a normally closed position in which the shaft member is grounded to the housing, the brake assembly includes an open position, the brake assembly being in the open position in a door closing mode and a door opening mode, the shaft member configured to be rotatable relative to the housing in the open position, the brake assembly including a holding torque in the normally closed position, and being configured such that a torque applied to the brake assembly above the holding torque permits the shaft member to rotate in either direction; a position sensor configured to detect rotation of the output shaft and to provide a second input in response thereto, the second input corresponding to a manually initiated movement of the door pivoting about the hinge that exceeds the holding torque of the brake assembly in the normally closed position. - View Dependent Claims (2, 3, 4, 5, 6, 10, 12, 13, 14, 15, 16)
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7. An automotive door system comprising:
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a hinge configured to support a door; a switch configured to provide a first input in response to a user request to automatically open or close the door; a power drive module including; a housing; a motor; a gearbox operatively coupled to the motor by a shaft member; an output shaft operatively connected to the door and the gearbox, the output shaft configured to provide an output torque that corresponds to a desired motion of the door about a hinge; and a brake assembly operatively connected to the shaft member, the brake assembly having a normally closed position in which the shaft member is grounded to the housing, the brake assembly includes an open position corresponding to one of a door closing mode and a door opening mode, the shaft member configured to be rotatable relative to the housing in the open position; a position sensor configured detect rotation of the output shaft and to provide a second input in response thereto, the second input corresponding to a manually initiated movement of the door pivoting about the hinge that exceeds a slip torque of the brake assembly in the normally closed position; and wherein the brake assembly includes a permanent magnet grounding the shaft member to the housing in the normally closed position, and a coil is configured to overcome a magnetic flux of the permanent magnet to provide an open position that permits the shaft member to freely rotate relative to the housing. - View Dependent Claims (8, 9, 17)
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11. An automotive door system comprising:
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a hinge configured to support a door; a switch configured to provide a first input in response to a user request to automatically open or close the door; a power drive module including; a housing; a motor; a gearbox operatively coupled to the motor by a shaft member; an output shaft operatively connected to the door and the gearbox, the output shaft configured to provide an output torque that corresponds to a desired motion of the door about a hinge; and a brake assembly operatively connected to the shaft member, the brake assembly having a normally closed position in which the shaft member is grounded to the housing, the brake assembly includes an open position corresponding to one of a door closing mode and a door opening mode, the shaft member configured to be rotatable relative to the housing in the open position; a position sensor configured to detect rotation of the output shaft and to provide a second input in response thereto, the second input corresponding to a manually initiated movement of the door pivoting about the hinge that exceeds a slip torque of the brake assembly in the normally closed position; and an attitude sensor in communication with the controller, the attitude sensor configured to provide an attitude of the vehicle, the controller configured to regulate the brake assembly in response to a signal from the attitude sensor. - View Dependent Claims (18)
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Specification