EP 2815250 A1 20141224 - DRIVER ASSISTANCE DEVICE HAVING AN ULTRASONIC SENSOR, MOTOR VEHICLE AND METHOD FOR OPERATING AN ULTRASONIC SENSOR
Title (en)
DRIVER ASSISTANCE DEVICE HAVING AN ULTRASONIC SENSOR, MOTOR VEHICLE AND METHOD FOR OPERATING AN ULTRASONIC SENSOR
Title (de)
FAHRERASSISTENZEINRICHTUNG MIT EINEM ULTRASCHALLSENSOR, KRAFTFAHRZEUG UND VERFAHREN ZUM BETREIBEN EINES ULTRASCHALLSENSORS
Title (fr)
SYSTÈME D'AIDE À LA CONDUITE ÉQUIPÉ D'UN CAPTEUR D'ULTRASONS, VÉHICULE AUTOMOBILE ET PROCÉDÉ D'UTILISATION D'UN CAPTEUR D'ULTRASONS
Publication
Application
Priority
- DE 102012002979 A 20120215
- EP 2013052024 W 20130201
Abstract (en)
[origin: WO2013120706A1] The invention relates to a driver assistance device (2) for a motor vehicle (1), having an ultrasonic sensor (3) which has a diaphragm (7) for emitting ultrasonic waves and an oscillator (10) for generating an oscillator signal (9) to excite the diaphragm (7), and having a control device (4) for actuating the ultrasonic sensor (3), wherein the oscillator (10) is a temperature-dependent oscillator (10), with the result that the frequency of the oscillator signal (9) is dependent on the ambient temperature of the ultrasonic sensor (3), and the control device (4) is designed to determine the ambient temperature on the basis of a sensor signal (12), generated on the basis of the oscillator signal (9), of the ultrasonic sensor (3).
IPC 8 full level
CPC (source: CN EP)
G01K 7/32 (2013.01 - CN EP); G01S 7/52006 (2013.01 - CN EP); G01K 2205/00 (2013.01 - CN EP); G01K 2217/00 (2013.01 - CN EP); G01S 15/876 (2013.01 - CN EP); G01S 2015/932 (2013.01 - CN EP)
Citation (search report)
See references of WO 2013120706A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2013120706 A1 20130822; BR 112014018840 A2 20170620; BR 112014018840 A8 20170711; CN 104115026 A 20141022; CN 104115026 B 20171031; DE 102012002979 A1 20130822; EP 2815250 A1 20141224
DOCDB simple family (application)
EP 2013052024 W 20130201; BR 112014018840 A 20130201; CN 201380009670 A 20130201; DE 102012002979 A 20120215; EP 13702450 A 20130201