公开(公告)号：US20240361440A1

公开(公告)日：2024-10-31

申请号：US18579865

申请日：2022-07-13

申请人： VALEO SCHALTER UND SENSOREN GMBH

发明人： Oliver Eidel ,  Stefan Triebl ,  Paul Bou-Saleh ,  Nicolas Bellaize ,  Fabian Haag

IPC分类号： G01S7/521 ,  G01S15/931

CPC分类号： G01S7/521 ,  G01S15/931

摘要： A decoupling element for an ultrasonic sensor is disclosed. The ultrasonic sensor is able to be attached to a flat component for a vehicle. The flat component includes a cutout. The ultrasonic sensor includes a cylindrical ultrasonic transceiver element which is able to be introduced into the cutout. The decoupling element includes a hollow-cylindrical element for enclosing the cylindrical ultrasonic transceiver element of the ultrasonic sensor and a plurality of support ribs which are arranged in the radial direction outside the hollow-cylindrical element and are spaced apart from one another in a circumferential direction of the hollow-cylindrical element for supporting the decoupling element on a region of the flat component outside the cutout when the cylindrical ultrasonic transceiver element with the hollow-cylindrical element enclosing it is introduced by an end portion at an axial end into the cutout.

公开(公告)号：US20240230869A1

公开(公告)日：2024-07-11

申请号：US18562330

申请日：2022-05-10

申请人： VALEO SCHALTER UND SENSOREN GMBH

发明人： Fabian Haag ,  Jose Renan Veliz Argueta ,  Thomas Frintz ,  Paul Bou-Saleh

IPC分类号： G01S7/52 ,  G01S15/931

CPC分类号： G01S7/52004 ,  G01S15/931 ,  G01S2007/52009

摘要： Method for determining a function state (FZ) of an ultrasonic sensor (2) for a vehicle (1), having the steps of: a) applying (S1) an electrical test signal (P) to the ultrasonic sensor (2); b) detecting (S2) an electrical response signal (A) from the ultrasonic sensor (2); c) determining (S3) a phase-frequency response (PF) comprising the phase angle (a) of the detected response signal (A) for the applied test signal (P) on the basis of an excitation frequency (f) of the applied test signal (P); d) comparing (S4) at least a first phase angle (P1) below and a second phase angle (P2) above a resonant frequency (R) in the determined phase-frequency response (PF) with a respective expected phase angle (PE1, PE2); e) correcting (S5) the determined phase-frequency response (PF) on the basis of the comparison; and f) determining (S6) the function state (FZ) on the basis of the corrected phase-frequency response (PFK).