Patent ID: 11952808
Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A device for locking and/or unlocking a door leaf of a motor vehicle, the device comprising: a detection wall having an inner face and an outer face disposed opposite said inner face, the outer face forming a contact detection area, and a detection member arranged against the inner face for detecting a contact between a finger or a hand of a user and said outer face, wherein the detection member comprises a sensor having a layer of a piezoelectric material with surface undulations in the form of ridges, said layer of piezoelectric material being configured to detect a predetermined contact on the outer face configured to control, depending on the predetermined detected contact, locking or unlocking of the door leaf.