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:
Aug. 27, 2013
Filed:
Apr. 26, 2010
Shane Mclaughlin, Blacksburg, VA (US);
Hiroshi Tsuda, McLean, VA (US);
Jon Hankey, Blacksburg, VA (US);
Tomohiro Yamamura, Kanagawa, JP;
Nobuyuki Kuge, Kanagawa, JP;
Shane McLaughlin, Blacksburg, VA (US);
Hiroshi Tsuda, McLean, VA (US);
Jon Hankey, Blacksburg, VA (US);
Tomohiro Yamamura, Kanagawa, JP;
Nobuyuki Kuge, Kanagawa, JP;
Nissan North America, Inc., Franklin, TN (US);
Nissan Motor Co., Ltd., Kanagawa, JP;
Virginia Tech Intellectual Property, Inc., Blacksburg, VA (US);
Abstract
An impaired operation detection method is basically performed by sensing a yaw rate of a vehicle over a time period. Then time points are identified in which the yaw rate changes direction. A linear rate of change in the yaw rate is determined between two of the time points that are sequential in time. An actual rate of change is examined between the two time points. A difference between the actual rate of change and the linear rate of change to obtain a difference value. Then, the operator's impairment condition is determined based on the difference value.