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:
Sep. 18, 2012
Filed:
May. 15, 2007
Kiyokazu Okada, Nishikamo-gun, JP;
Motohiro Nakamura, Okazaki, JP;
Hidenobu Suzuki, Ann Arbor, MI (US);
Masaki Nakamura, Okazaki, JP;
Makoto Hasunuma, Nagoya, JP;
Kiyokazu Okada, Nishikamo-gun, JP;
Motohiro Nakamura, Okazaki, JP;
Hidenobu Suzuki, Ann Arbor, MI (US);
Masaki Nakamura, Okazaki, JP;
Makoto Hasunuma, Nagoya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Aisin Aw Co., Ltd., Anjyo-shi, JP;
Abstract
An accuracy error for measuring the position of an own vehicle is calculated based on the information of an execution history of map matching and the information of an update history of a map database. In addition, a predetermined map is referred to based on the calculated accuracy error, and an accuracy error level for performing positioning is specified from among plural stepwise levels. Then, the control level of assist control executed according to the position of the own vehicle is changed so as to correspond to the specified accuracy error level.