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. 20, 2018
Filed:
Jun. 13, 2016
Volvo Car Corporation, Gothenburg, SE;
Mattias Erik Brannstrom, Gothenburg, SE;
Joakim Lin Sorstedt, Gothenburg, SE;
Peter Karlsson, Gothenburg, SE;
Volvo Car Corporation, Gothenburg, SE;
Abstract
A unit for improving positioning accuracy of an autonomous vehicle driving on a road includes a first computation unit configured to compute a first position of the vehicle at a time Tusing data from at least an inertial measurement unit (IMU); a second computation unit configured to compute a second position of the vehicle at the time Tusing data from at least one external sensor and a map; a comparison unit configured to compute a position difference between the computed first and second positions; a correction unit configured to correct an error parameter of the IMU, wherein the error parameter is used for correcting a third position of the vehicle computed by the first computation unit at a time Twith the computed position difference at time T, if the second computation unit is unable to compute a fourth position of the vehicle at the time T