Use of Active Vibration Control to Improve Vehicle Refinement while Expanding the Usable Range of Cylinder Deactivation

2019-01-1571

06/05/2019

Event
Noise and Vibration Conference & Exhibition
Authors Abstract
Content
Cylinder deactivation has been in use for several years resulting in a sizable fuel economy advantage for V8-powered vehicles. The size of the fuel-economy benefit, compared to the full potential possible, is often limited due to the amount of usable torque available in four-cylinder-mode being capped by Noise, Vibration, and Harshness (NVH) sensitivities of various rear-wheel-drive vehicle architectures. This paper describes the application and optimization of active vibration absorbers as a system to attenuate vibration through several paths from the powertrain-driveline into the car body. The use of this strategy for attenuating vibration at strategic points is shown to diminish the need for reducing the powertrain source amplitude.
This paper describes the process by which the strategic application of these devices is developed in order to achieve the increased usage of the most fuel efficient reduced-cylinder-count engine-operating-points.
Meta TagsDetails
DOI
https://doi.org/10.4271/2019-01-1571
Pages
6
Citation
Orzechowski, J., Agnihotri, G., and Juneja, V., "Use of Active Vibration Control to Improve Vehicle Refinement while Expanding the Usable Range of Cylinder Deactivation," SAE Technical Paper 2019-01-1571, 2019, https://doi.org/10.4271/2019-01-1571.
Additional Details
Publisher
Published
Jun 5, 2019
Product Code
2019-01-1571
Content Type
Technical Paper
Language
English