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.

Date of Patent:
Feb. 04, 2025

Filed:

May. 17, 2022
Applicant:

Denso Corporation, Kariya, JP;

Inventor:

Yuuichi Minamiguchi, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 21/16 (2006.01); B60W 40/068 (2012.01); B60W 40/103 (2012.01); G01C 21/32 (2006.01);
U.S. Cl.
CPC ...
G01C 21/188 (2020.08); B60W 40/068 (2013.01); B60W 40/103 (2013.01); G01C 21/32 (2013.01); B60W 2520/20 (2013.01); B60W 2552/40 (2020.02); B60W 2556/40 (2020.02);
Abstract

An estimation includes a dead reckoning unit, a map matching unit, and a parameter correction unit. The dead reckoning unit is configured to estimate a state quantity by dead reckoning based on (i) a dynamics model including a parameter that changes a behavior of the vehicle and (ii) internal information acquired from an inside of the vehicle. The map matching unit is configured to observe the state quantity by map matching based on (i) map information indicative of a traveling environment of the vehicle and (ii) external information acquired from an outside of the vehicle. The parameter correction unit is configured to correct the parameter, which is to be fed back for the dead reckoning, based on an offset amount that is a difference between the state quantity observed by the map matching and the state quantity estimated by the dead reckoning.


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