ULTRASONIC SYSTEM OF A VEHICLE FOR DETERMINING THE CONDITION OF THE ROADWAY

• Main Authors: Mayer, Markus, Koenig, Timo, Schumann, Michael, Weissenmayer, Simon
• Format: Patent
• Language: English
• Published: 18.02.2021
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PERFORMING OPERATIONS; PHYSICS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; RADIO DIRECTION-FINDING; RADIO NAVIGATION; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TESTING; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLES IN GENERAL

An ultrasonic system of a vehicle. The ultrasonic system includes: at least one ultrasonic sensor for ascertaining a distance of objects from the vehicle by comparing an emitted signal and a reflected echo, and a calculation apparatus for evaluating a measured signal of the ultrasonic sensor. The calculation apparatus is configured to determine a variance of a ground echo distribution within a roadway portion on which the vehicle is moving, and to ascertain the condition of the roadway portion on the basis of at least one predefined classifier that associates individual values of the variance with a roadway condition.