Sensor feedback control for noise and vibration
First Claim
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1. A method of controlling noise/vibration in a vehicle having a powertrain, the method comprising:
- sensing at least one of noise and vibration in the vehicle; and
adjusting an operating point of the powertrain while maintaining a constant transmission output power to reduce the at least one of noise and vibration.
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Abstract
A method of controlling noise/vibration in a vehicle having a powertrain includes sensing noise/vibration in the vehicle. An operating point of the powertrain is adjusted and a constant transmission output power is maintained to reduce the noise/vibration.
71 Citations
23 Claims
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1. A method of controlling noise/vibration in a vehicle having a powertrain, the method comprising:
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sensing at least one of noise and vibration in the vehicle; and adjusting an operating point of the powertrain while maintaining a constant transmission output power to reduce the at least one of noise and vibration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of controlling noise/vibration in a vehicle having a powertrain, said method comprising:
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sensing at least one of noise and vibration while the vehicle operates in an operating range that may be conducive to at least one of noise and vibration; and adjusting an operating point of the powertrain to shift vehicle operation outside the range, wherein the vehicle includes a variable displacement engine, said sensing performed while the vehicle is operated in a deactivated mode. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A system for controlling at least one of noise and vibration in a vehicle having a powertrain, the system comprising:
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a vibration sensing module that senses whether noise/vibration is present in the vehicle; and a control module that, while at least one of noise and vibration is sensed, adjusts an operating point of the powertrain while maintaining a constant powertrain output power to reduce the at least one of noise and vibration. - View Dependent Claims (17, 18, 19)
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20. A system for controlling noise/vibration in a vehicle having a powertrain, said method comprising:
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a vibration sensing module that senses and compares at least one of noise and vibration to a threshold while the vehicle is operating in an operating range conducive to at least one of noise and vibration; and a control module that, based on a result of the comparing by said vibration sensing module, adjusts an operating point of the powertrain to shift vehicle operation outside the range, wherein the vehicle includes a variable displacement engine, and said vibration sensing module senses at least one of noise and vibration while the vehicle is operated in a deactivated mode. - View Dependent Claims (21, 22, 23)
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Specification