Sunroof assembly noise attenuation system
First Claim
Patent Images
1. A sunroof assembly for an automotive vehicle, said sunroof assembly comprising:
- a vibration sensor;
a rigid sunroof panel;
an actuator coupled to said panel and being electrically connected to said vibration sensor, said actuator selectively moving said panel in response to an output from said vibration sensor, said vibration sensor being disposed adjacent to said panel; and
a sunroof tub having an opening covered by said sunroof panel when said sunroof panel is disposed in a closed position, said vibration sensor being mounted to said sunroof tub immediately adjacent to said opening.
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Abstract
A sunroof noise attenuation system employs a sunroof assembly having an actuator driven pane movable in response to a sensor signal. In another aspect of the present invention, a pair of vibration sensors are mounted to the sunroof tub. In a further aspect of the present invention, an electronic control unit is electrically connected between a sensor and the actuator. In still another aspect of the present invention, a speed sensor is employed. A method of operating the sunroof assembly is also described.
62 Citations
19 Claims
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1. A sunroof assembly for an automotive vehicle, said sunroof assembly comprising:
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a vibration sensor; a rigid sunroof panel; an actuator coupled to said panel and being electrically connected to said vibration sensor, said actuator selectively moving said panel in response to an output from said vibration sensor, said vibration sensor being disposed adjacent to said panel; and a sunroof tub having an opening covered by said sunroof panel when said sunroof panel is disposed in a closed position, said vibration sensor being mounted to said sunroof tub immediately adjacent to said opening. - View Dependent Claims (2, 3, 4, 5)
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6. A sunroof assembly for an automotive vehicle, said sunroof assembly comprising:
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a vibration sensor; a rigid sunroof panel; an actuator coupled to said panel and being electrically connected to said vibration sensor, said actuator selectively moving said panel in response to an output from said vibration sensor, said vibration sensor being disposed adjacent to said panel; an electrical circuit; and a sensitivity control switch electrically connected to said electrical circuit, said sensitivity control switch varying a preset decibel difference value, said vibration sensor also being electrically connected to said circuit. - View Dependent Claims (7, 11)
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8. A sunroof assembly for an automotive vehicle, said sunroof assembly comprising:
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a rigid panel; a powered actuator coupled to said panel for selectively moving said panel; an electronic control unit electrically connected to said actuator for controlling energization of said actuator, said electronic control unit being disposed adjacent to said panel; said electronic control unit automatically causing said actuator to move said panel an amount necessary to reduce wind noise otherwise created by said panel being in a relatively greater open position; a vibration sensor positioned adjacent to a roof opening for sensing said wind noise, said vibration sensor being electrically connected to said electronic control unit; and a fixed sunroof tub, said panel being movably coupled to said tub, said electronic control unit and said vibration sensor being mounted to said tub, said tub being free of a wind deflector. - View Dependent Claims (9, 10, 12, 13, 14, 15)
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16. A method of operating a control system for use in an automotive vehicle sunroof assembly having a sunroof panel, a first microphone and a second microphone, said method comprising the steps of:
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(a) measuring wind buffeting noise at a front edge of a sunroof opening with said first microphone; (b) measuring vibrations at a rear edge of a sunroof opening with said second microphone; (c) receiving a first sensor signal from said first microphone; (d) receiving a second sensor signal from said second microphone; (e) determining a difference between said sensor signals; (f) comparing said difference to a preset value; and (g) moving said sunroof panel until said signal differential is a predetermined amount less than before said movement. - View Dependent Claims (17, 18)
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19. A sunroof assembly for an automotive vehicle, said sunroof assembly comprising:
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a sunroof tub; an electric motor; circuit means electrically connected to said motor; a microphone electrically connected to said circuit means; a driver accessible switch electrically connected to said circuit means; and an electronic control unit causing energization of said motor in response to receipt of a signal from at least one device consisting of said switch and said microphone, said electronic control unit being mounted on said sunroof tub.
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Specification