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:
Nov. 26, 2013
Filed:
Aug. 28, 2008
Applicants:
Yasuyuki Asahara, Yokohama, JP;
Takeshi Toi, Tokyo, JP;
Kazuki Yokoyama, Tokyo, JP;
Inventors:
Assignees:
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Chuo University, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60L 11/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A vehicle () includes an electric drive motor (), an inverter () that provides a drive current to the electric motor () and a controller () that controls the inverter (). The controller () functions as a beat noise generation system that creates beat noise by generating a second operating noise containing a component an order of which is very close to a value representing an order of an operating noise generated in proportion to a rotation speed of the electric motor () so as to create desirable traveling noise corresponding to an accelerating state while the vehicle accelerates.