Continental Automotive Gmbh

Continental Automotive France

Mickael Guibbert

Olivier Elie

Gabriel Spick

Olivier Gerardiere

Maxime Cordier

Pascal Perrot

Monirat Ung

A method for detecting the intention of a user to lock or unlock a motor-vehicle door with a detection device integrated into a handle. The method includes continuously measuring the resonant frequency of the detection device and successively comparing the measured resonant frequency to a first threshold representative of the approach of the user and to a second threshold, higher than the first threshold, representative of the contact of the user, the intention of the user to lock or unlock the door of the vehicle being validated only if a duration between the passage of the resonant frequency below the first threshold and the passage of the resonant frequency above the second threshold is shorter than a preset duration. An associated detection device is also disclosed.

Method for detecting a user's intention to lock or unlock a motor vehicle door and associated device

A device to be integrated into a handle of a vehicle door for detecting a user's intention to lock or unlock the door, with a casing therein that includes a contact detection element that detects a contact of a user's hand on the handle, where an area of contact of the handle is defined by an elastically deformable part, and the contact detection element includes a non-magnetic metal target that moves along a predetermined axis, a coil, a pre-stressed compressible element between the non-magnetic metal target and the coil, means for transmitting a movement of the elastic part to the non-magnetic metal target, and means for comparing a measured inductance of the coil and a predetermined threshold value of inductance for detecting the user's intention to lock or unlock the door.

Device for detecting a user's intention to lock or unlock a motor vehicle door

Disclosed is a method of detecting the approach and/or contact of a user's hand to a door handle, the handle having a first outer surface oriented toward the vehicle and a second outer surface oriented toward the user, the handle including at least one detection electrode and an additional electrode, positioned face to face in advance. The method includes: the two electrodes are electrically connected to the same power supply source; a first capacitance value is measured at the terminals of the detection electrode; a second capacitance value is measured at the terminals of the additional electrode; and the first and second values are compared, during a measurement period, with one another and/or with a predetermined threshold value, in order to detect the approach of a user's hand toward the first outer surface or toward the second outer surface and/or the contact of his hand with one of these surfaces.

Method of detecting the approach of a user's hand to a vehicle door handle or the contact of a user's hand therewith, and associated detection device

A method of calibrating a standby duration (D) of a proximity detection sensor, the sensor alternating between measurement phases (P), the evaluation duration (D) of which is measured by a first oscillator (O) of stable frequency and standby phases (P), the predetermined standby duration (D) of which is controlled by a second oscillator (O), the frequency of which varies according to external parameters. The method provides for performing immediately after the measurement phase (P), a second measurement phase (P) during which a second evaluation duration (D) is measured by the second oscillator (O) and calibrating the standby duration (D) using the ratio between the number of oscillations (N') generated during the evaluation duration (D) by the first oscillator (O) and the number of oscillations (N&#x2032;) generated during the second evaluation duration (D) by the second oscillator (O).

Method of calibrating a standby duration of a proximity detection sensor and associated sensor

A method for detecting the actuation of a handle () of a motor vehicle door (), the handle () including at least a locking electrode (), having a capacitance across its terminals, and an unlocking request detection device () generating an unlocking request signal, the method including continuously measuring a variation of the unlocking request signal and a variation of the capacitance (&#x394;C) of the locking electrode, determining an unlocking request, and then comparing the variation of the capacitance (&#x394;C) with a threshold (S2) during consecutive first and second predetermined periods (t1, t2), respectively, in order to detect whether the handle () has been actuated.

Method for detecting the actuation of a motor vehicle door handle

A reliable and secure activation of an access based on a detection of movement in a remote access system by providing a secure method for opening/closing of an access in hands-free access mode. The detection of movement relates to the displacement of a lower member of a user by a remote access system, this access system including at least two elements of detection which each emit a signal whose variations () are analyzed. The detection of a movement of a lower member is validated by the application of a double verification step according to parameters (dAsA, dAsB) of a criterion for identification (tA, tB; dAsA, dAsB) of a form of variation (F; A, B) of each signal () with a model form of the movement, and according to a criterion for simultaneity of detection of the forms of variation (F) identified on the two signals.

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Toulouse, France

Mickael Guibbert