Method for radar classification of a road surface

US11500087B2 · kind B2 · utility

Assignees

• Conti Temic microelectronic GmbH · DE
• VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

• Thorsten Bagdonat · Braunschweig, DE
• Marc-Michael Meinecke · Hillandale Drive East, DE
• Andreas Löffler · Neutraubling, DE
• Thomas Fechner · Günzburg, DE

Key dates

• Filing date: Oct 15, 2018
• Grant date: Nov 15, 2022
• Expiry date: May 16, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G08G1/0112
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for classification of ground conditions in the vicinity of a vehicle using a radar sensor, comprising: receiving reflected portions of a radar signal at a receiver unit of a radar system; calculating information derived from the received portions of the radar signal for discrete spatial regions by the radar system or a control unit connected thereto; assigning the information to data structure units associated with a geographical location and the assignment of the information taking into account movement of the vehicle; collecting pieces of information in the respective data structure units, the pieces of information being obtained from reflected portions of radar signals transmitted at different times; evaluating the information contained in the data structure using a classifier to obtain information regarding the ground condition; assigning ground condition types to the data structure units based on evaluation results obtained by the classifier.