VEHICLE OIL PAN WITH ACTIVE NOISE REDUCTION CONTROL
First Claim
1. A method of controlling vibration in a fluid reservoir of an automotive vehicle comprising:
- providing at least a portion of a fluid reservoir with a shape memory change material;
measuring at least one vehicle operating characteristic related to vehicle operating vibrations frequency; and
altering the resonant vibration frequency of the fluid reservoir when the vehicle operating vibration frequency matches the resonant vibration frequency of the fluid reservoir.
2 Assignments
0 Petitions
Accused Products
Abstract
A vibration and noise abatement reduction method and apparatus for a fluid reservoir containing an automotive fluid and having a bottom wall. At least a portion of the fluid reservoir is formed of or carries a shape memory change material undergoing shape change at a threshold temperature. A controller detects a match between the vehicle vibration frequency at a measured vehicle operating characteristic and the resonant frequency of the fluid reservoir and varies the resonant vibration frequency of the fluid reservoir by changing the stiffness of at least a portion of the reservoir through the supply of heat to the fluid reservoir resulting in a change in the shape of at least the shape memory change material in the fluid reservoir. The heat is supplied from an electrical conductor in heat transfer relation with the fluid reservoir or an elevated temperature of the automotive fluid in the fluid reservoir.
15 Citations
24 Claims
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1. A method of controlling vibration in a fluid reservoir of an automotive vehicle comprising:
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providing at least a portion of a fluid reservoir with a shape memory change material; measuring at least one vehicle operating characteristic related to vehicle operating vibrations frequency; and altering the resonant vibration frequency of the fluid reservoir when the vehicle operating vibration frequency matches the resonant vibration frequency of the fluid reservoir. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A vibration reduction apparatus for a fluid reservoir configured for containing an automotive fluid and having a bottom wall comprising:
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a portion of an automotive fluid reservoir carrying a shape memory change material; a vehicle sensor measuring a vehicle operating characteristic; a controller executing program instructions stored vehicle vibration frequencies at the measured vehicle operating characteristic and a resonant frequency of the fluid reservoir; and the controller, when the vehicle vibration frequency matches the resonant frequency of the fluid reservoir, changing the resonant frequency of the fluid reservoir from the vehicle operating vibration frequency. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. An automotive vehicle having one of an engine and a transmission and an automotive lubricating fluid supplied from a fluid reservoir to at least one of the engine and the transmission, comprising:
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a portion of a bottom wall of an automotive fluid reservoir formed of a shape memory change material; a vehicle sensor measuring a vehicle operating characteristic; a controller executing program instructions stored vehicle vibration frequencies at the measured vehicle operating characteristic and a resonant frequency of the fluid reservoir; and the controller, when the vehicle vibration frequency matches the resonant frequency of the fluid reservoir, changing the resonant frequency of the fluid reservoir from the vehicle operating vibration frequency. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification