Continental Automotive Gmbh

Continental Automotive France

Siemens Vdo Automotive Corporation

Luc Jansseune

Yves Dordet

Bernard Genot

Ulrich Emmerling

Michel Boucard

Roland Wagner

Matthias Huschenbett

Dominique Rantet

Daniel Hostmann

Yves Daviaud

Laurent Satge

Bernhard Förstl

Rupert Schuster

Guy Bonhomme

A method and device for triggering, via an RFID reader () endowed with a transmitting antenna (), a procedure for actuating an element for locking/unlocking the access doors () of a motor vehicle (). A coil () is arranged in the vicinity and in the field of action of the transmitting antenna (), and:

Method and device for triggering, using an RFID reader, a procedure for actuating a means for locking/unlocking the access doors of a motor vehicle

A near field communication method between a vehicle and a mobile device includes the following steps:

Near field communication method, between a mobile device and a motor vehicle and corresponding device

An electric circuit for controlling the access and immobilizing a vehicle has a first antenna driver () for driving a first antenna () for emitting a signal () in the event of identification of an ID transmitter () for access control of a vehicle. A second antenna driver () is provided for driving a second antenna () for emitting a signal () in the event of identification of an ID transmitter () for the immobilizer of the vehicle. In addition, the electric circuit has a receiver device () for receiving a signal captured by an antenna () for the identification of an ID transmitter () for the immobilizer. The first antenna driver () and the receiver device () are commonly integrated into a semiconductor chip ().

Electric circuit for an access control and for an immobilizer of a vehicle and method for calibrating an antenna driver

A contactless angular offset analog sensor, of the magnetic inductance type, includes a first portion forming a detector. The detector includes at least one substrate plate carrying at least one flat spiral winding, and at least one core layer of material with high magnetic permeability and low saturation field over at least one portion of the winding. The detector is adapted to coact with a device for processing the electrical signal measured at the terminals of the winding. The sensor also includes two rotors each having at least one magnet, disposed over a predetermined angular sector. The rotors are movable about a same axis identical to the axis of the winding. Each magnet generates in the plane of the core layer a magnetic field of a value greater than the saturation field of the core layer over at least a portion of the surface of the winding.

Analog sensor for contact-free angular offset sensing

A sensor system includes a coil positioned on a thin substrate sandwiched to a layer of mumeta, a high magnetic permeability material. The mumetal acts as an amplifier for the inductance L measured at the terminals of the coil. When a magnet passes in front a sheet of mumetal, its magnetic field locally saturates the mumetal whose magnetic permeability collapses on the saturated surface. The result is a reduction of the inductance factor (L) in proportion with that area of the coil covered by the saturated mumetal. This reduction in inductance is measured at the coil terminals to provide an estimation of that area of the coil that has been covered. By determining a particular layout of the coil, mumetal, and magnet, a predetermined electrical signal of inductance or coupling variations corresponding to movement of the magnet is provided.

Inductive magnetic saturation displacement sensor

Growing community of inventors

Venerque, France

Luc Jansseune