A device for detecting a user's intention to lock or to unlock a motor vehicle door. The device contained in a watertight housing, integrated into a non-watertight handle, the lower part of which includes drainage holes, a part of the housing being immersed in water. The device including: a capacitive approach and/or contact detection sensor, having at least one detection electrode, a variable detection capacitance representative of the approach of the user's hand, a charging/discharging capacitor Cs, and a protective electrode Ep situated in the part of the housing that is immersed in water, electrically coupled to the detection electrode and connected to a terminal of the charging/discharging capacitor Cs such that the protective electrode Ep is simultaneously at the same potential as the terminal of the charging/discharging capacitor during the various steps of charging/discharging the detection capacitor and the charging/discharging capacitor that are necessary to estimate the detection capacitance.

An electronic lock, such as a deadbolt, with a locking device movable between a locked position and an unlocked position. The lock includes a key fob including a RFID circuit indicative of a valid access code for the locking device. A circuit is provided that is configured to control movement of the locking device between the locked position and the unlocked position. The circuit includes a sensor, such as a contract sensor or a proximity sensor, which detects when a user is within range of a RFID device. When this happens, the sensor is configured to generate an electrical signal, which is used to activate the RFID device for a predetermined period of time. If the RFID device reads a valid access code, the device is unlocked.

Disclosed is a system for detecting approach and/or contact of a user and Ultra High Frequency communication with a portable user apparatus, intended to be embedded on board an automotive vehicle, the system including: a device for detecting approach and/or contact, including a sensor for detecting approach and/or contact and an electronic control unit; a conducting metal surface, suitable for the conduction of electric charges; and a communication device, including an Ultra High Frequency antenna emitting an electromagnetic field at an Ultra High Frequency wavelength, and a management unit for managing the emission and reception of data of the antenna. The conducting metal surface takes the form of a continuous path including a plurality of meanders spread over a length at least equal to:
L=λ/6
wherein L is a total length of the meanders, and λ is a wavelength of the Ultra High Frequency antenna.

The door handle device includes: a contact sensing unit including a guide groove and a contact sensing electrode, the guide groove configured to guide a water droplet falling on a door, the contact sensing electrode disposed in the guide groove and configured to sense a contact with the door; a locking unit configured to execute unlocking and locking of a door; and a control unit configured to instruct to the locking unit to keep locking the door if determining that the water droplet is in contact with the door, on the basis of a sensing result by the contact sensing electrode. There are provided: a contact sensing device; a door handle device and a control method for such a door handle device; and an electronic key system, for preventing a misoperation due to a water droplet adhering to a door handle of vehicles, which has an electrostatic locking mechanism.

An access control device and a method for operating an access control device are provided. The access control device includes a detection sensor, a communication module, and a processor. The detection sensor is configured to detect a status event (e.g., a rotation of a handle, or an insertion or closure of a keybox). The communication module is in wireless communication with a mobile device. The communication module is configured to receive an advertising signal from the mobile device. The processor is in communication with at least one of the detection sensor and the communication module. The processor is configured to determine whether a distance between the mobile device and the access control device is greater than a threshold when the detection sensor detects the status event. The processor is configured to trigger a notification when the distance is greater than the threshold.

An electronic door lock includes a controller, a first touch sensor, and a lock operator. The first touch sensor detects touch on an exterior an exterior side of a door. The lock operator is selectively operated by the controller to unlock a deadbolt according to the touch detected by the first touch sensor. The electronic door lock is located on an interior side of the door. The first touch sensor may be electrically coupleable to a deadbolt lock for the deadbolt to act as an electrode of the touch sensor. The first touch sensor may detect the touch capacitively.

An actuation handle (4) for attaching to an outside of a door (2) has an access control system designed to control a motorized lock, that contains an evaluation unit and a reader (8) for reading and identifying a transponder located in a first detection range (12) defined by the reader (8). The reader (8) is integrated in the actuation handle (4). There is also a sensor (10) for detecting an object located in a second detection range (14) defined by the sensor (10), which is coupled to the evaluation unit and integrated in the actuation handle (4). The sensor (10) is located on a first section (16) of the actuation handle (4), and the second detection range (14) extends outward from the first section (16). The evaluation unit is configured to activate the sensor (10) to detect an object in the second detection range (14) after identifying a transponder.

An access system (2) has a first actuation handle (6) that is attached to an outside of a door (4), a second actuation handle (8) that is attached to an inside of a door (4), and an access control system that has at least one evaluation unit (14), which is coupled to the at least one reader (10, 12) and is configured to identify a transponder that has been read. The system is characterized in that a first reader (10) is located on the outside of the door (4) and a second reader (12) is located on the inside of the door (4), and that the at least one evaluation unit (14) is configured to determine whether a transponder (16) read by the first reader (10) and/or the second reader (12) and identified by the at least one evaluation unit (14) is inside or outside the door (4), and to generate a door-opening signal if the identified transponder (16) is on the outside.

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.