公开(公告)号：US11987282B2

公开(公告)日：2024-05-21

申请号：US17310198

申请日：2020-01-28

Applicant: Autoliv Development AB

Inventor： Pierre Sabourin ,  Nathalie Potel-Charlette ,  Laurent Groleau

IPC: B62D1/04 ,  B60K35/10 ,  B60R21/015 ,  B62D1/06 ,  B60K35/60

CPC classification number: B62D1/046 ,  B60K35/10 ,  B60R21/01532 ,  B62D1/06 ,  B60K35/60 ,  B60K2360/143 ,  B60K2360/782

Abstract: Detection device for a steering wheel of a vehicle, said device being configured to detect contact or proximity of a person with or to the steering wheel, comprising sensors, of which there are only three, of which:



a first sensor (21) is intended to be arranged on a left-hand half of a first face of the steering wheel,
a second sensor (22) is intended to be arranged on a right-hand half of said first face of the steering wheel, and
a third sensor (23) is intended to be arranged on a second face opposed to said first face of the steering wheel, and said first face is a rear face of the steering wheel.

公开(公告)号：US11613293B2

公开(公告)日：2023-03-28

申请号：US17255139

申请日：2019-06-19

Applicant: Autoliv Development AB

Inventor： Pierre Sabourin

IPC: G01R27/26 ,  B62D1/04 ,  B60N2/00 ,  B62D15/02 ,  G01D18/00 ,  G01D5/24

Abstract: A capacitive detection device that may include at least one electrode of a capacitive sensor, an alternating voltage source, a device for measuring a complex value of impedance or admittance between the detection electrode and an electrical circuit reference point and a calibration resistor, and a switching device arranged so as to connect the voltage source to the electrode, in the measurement mode, and to connect the voltage source to the calibration resistor and disconnect the voltage source from the electrode, in the calibration mode. The measuring device is arranged so as to measure a first complex value of the calibration resistor, during operation in the calibration mode; to measure a second complex value between the electrode and the electrical circuit reference point during operation in measurement mode, and to correct the second measured complex value according to the first measured complex value.