Sensor feedback control for noise and vibration
AssigneeGeneral Motors Corporation
InventorsThomas E. Bolander, Jeffrey J. Allen, Alexander J. Roberts, Keith W. Weishuhn
Life of this patent
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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.
Claims23
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.
A method of controlling noise/vibration in a vehicle having a powertrain, said method comprising:
- 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.
A system for controlling at least one of noise and vibration in a vehicle having a powertrain, the system comprising:
- 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.
A system for controlling noise/vibration in a vehicle having a powertrain, said method comprising:
- 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.
Dependencies are inferred from the claim text.