Patent ID: 11927036
Assignee: VITESCO TECHNOLOGIES GMBH
Field: Basic communication processes (Electrical engineering)
Classification: CPC E  H | IPC E  H

Claim 19:
20. A method for detecting an intention of a user to lock or unlock an opening element of a motor vehicle implementing a detection device as claimed in claim 1 comprising a capacitive sensor and an inductive sensor, wherein the inductive sensor is used to confirm an intention of a user to lock or unlock the opening element, which intention is detected by the capacitive sensor, a predetermined number of measurements above a capacitive threshold for the capacitive sensor and above an inductive threshold for the inductive sensor being necessary to confirm a detection, the capacitive sensor taking capacitance measurements at a higher frequency than the inductive sensor takes resonant frequency measurements when no intention is detected, the measurement frequency of the inductive sensor being just sufficient to establish a resonant-frequency reference line without movement of the target and when the capacitive sensor has detected an approach of a user which may lead to an intention to unlock, the measurement frequency of the inductive sensor is increased to be substantially equal to the frequency of the capacitive sensor with a range of variation of +/−10% around this measurement frequency.