The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 2005
Filed:
Feb. 28, 2001
Michael A. Voight, Troy, MI (US);
Daniel V. Sagady, Clarkston, MI (US);
David P. Schankin, Harper Woods, MI (US);
Jeffrey N. Heaton, Rochester Hills, MI (US);
Rachel Dudley, Ames, IA (US);
Matt Geissinger, Ames, IA (US);
Michael A. Voight, Troy, MI (US);
Daniel V. Sagady, Clarkston, MI (US);
David P. Schankin, Harper Woods, MI (US);
Jeffrey N. Heaton, Rochester Hills, MI (US);
Rachel Dudley, Ames, IA (US);
Matt Geissinger, Ames, IA (US);
American Axle & Manufacturing, Inc., Detroit, MI (US);
Abstract
A drivetrain component assembly comprising a drivetrain structure, means for generating a reference signal indicative of a frequency with which the drivetrain structure vibrates during operation of the drivetrain structure, at least one actuator coupled to the drivetrain structure, at least one sensor operable for monitoring vibrations transmitted from the drivetrain structure and producing a sensor signal in response thereto and a controller coupled to the at least one actuator and the at least one sensor. The controller receives the sensor and reference signals and generates an actuator signal in response thereto. The at least one actuator receives the actuator signal and generates a canceling vibration in the drivetrain structure in response thereto. The canceling vibration has a predetermined frequency and amplitude to substantially cancel-out vibrations in a predetermined bandwidth that are generated during the operation of the drivetrain structure. A method for analyzing the effect of a drivetrain component on a level of noise, vibration and harshness transmitted to a vehicle passenger compartment is also provided.