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. 23, 2021
Filed:
Sep. 19, 2018
Volvo Car Corporation, Gothenburg, SE;
Ulf Björkengren, Bjärred, SE;
Volvo Car Corporation, Gothenburg, SE;
Abstract
A method and system for guiding a self-driving vehicle. The vehicle comprises an ultrasound-based proximity sensing system. The method comprises determining a location and an orientation of the vehicle in a predetermined coordinate system; in the vehicle, receiving a predetermined route from the traffic control unit; by a vehicle control unit, controlling the vehicle to travel along the predetermined route while estimating a vehicle travel path; receiving an ultrasound signal from a beacon having a known location in the predetermined coordinate system, wherein the ultrasound signal transmitted by the beacon uniquely identifies the beacon location; determining a relative position of the vehicle in relation to the beacon by means of ultrasound signals transmitted between the beacon and the vehicle; and determining a location of the vehicle in the predetermined coordinate system based on the determined relative position of the vehicle and the known location of the beacon.