Continental Automotive Gmbh

Continental Automotive France

Youri Vassilieff

Mohamed Cheikh

Amaia Fortes Montilla

Gilles Jurek

Alexandru Takacs

Andreas Feigl

Riad Boukraa

Noman Rangwala

Enrique Saavedra

Helene Garnier

Controlling inductive charging of a portable item of user equipment by a charging device. The charging device including a reception surface receiving the item of user equipment, emitter coils and a magnetic field guide to direct a magnetic field in a plane parallel to the reception surface. The charging device equipped with at least two magnetic antennas, each to emit a magnetic field and each designed to partially receive the magnetic field emitted by the other antenna. The method includes the following steps: Simultaneous emission by the two antennas, having a first phase shift at input with respect to one another; Measurement of at least one parameter at the output of the antennas; Storage of the measured parameter; Comparison between the at least one parameter thus measured and a predetermined value; Repetition of the preceding steps for other phase shift values; Controlling of the charging based on the comparison results.

Method for controlling the inductive charging of a user device and associated charging device for motor vehicle

A device for high-frequency communication and for the inductive charging of an apparatus, including a charging surface, at least one charging antenna emitting a magnetic field at a low frequency and a layer of ferromagnetic material. The device includes at least one communication antenna and a printed circuit board. The communication antenna is in the form of a coil locally surrounding the layer with an axis of symmetry located in a plane parallel to the layer. The material of the layer is selected so as to have, at high frequency, an imaginary part with sufficiently high permeability to generate leaks on a surface of the layer extending perpendicular to the layer, while at the same time maintaining, at low frequency, an imaginary part with sufficiently low permeability to allow inductive charging.

Apparatus for high-frequency near-field communication and for inductively recharging a portable electronic device

A device for detecting the approach of a portable electronic apparatus and for communicating in the near field with a first antenna for communication at high frequency and an electrical power-supply and control unit having a device for measuring a variation in the amplitude of an electrical parameter representative of detection of the approach of the apparatus. The device includes a second near-field communication antenna housed in a space delimited by the first antenna and associated with a resonance circuit by being connected to the control unit by a switch having a first position for near-field communication where the second antenna is not supplied with power and a second position for approach detection where the second antenna is connected and enters into resonance with the first, active antenna.

Device for detecting an item of electronic equipment and for communicating with two near-field communication antennae

A charging device housed on board a motor vehicle includes at least one 'WPC' inductive primary antenna, having a charging frequency, and a second 'A4WP' resonant primary antenna, having a resonant frequency at least 1000 times higher than the charging frequency, a ferromagnetic body situated below and joined to the inductive antenna. The method for charging a mobile terminal includes: equipping the ferromagnetic body and inductive antenna beforehand with a system able to move the ferromagnetic body and inductive antenna with respect to the resonant antenna, moving the ferromagnetic body associated with the inductive antenna with respect to the resonant antenna, depending on the resonant frequency of the resonant antenna when the mobile terminal is charged by the resonant antenna, and moving the ferromagnetic body associated with the inductive antenna depending on the charging efficiency of the inductive antenna when the mobile terminal is charged by the inductive antenna.

Method for charging a mobile terminal with a mobile device with which a motor vehicle is intended to be equipped and associated charging device

A magnetic induction charging device () includes an electrical power supply source () connected to a main coil (). The device () includes passive resonant circuits () of different respective resonant frequencies in a range of predetermined main frequency values. Each passive resonant circuit () includes a secondary coil (). The secondary coils () are arranged in respective different zones of the main coil (). The electrical power supply source () is adapted to generate different charging signals of main frequencies in the range of predetermined main frequency values.

Magnetic induction charging device

Some embodiments include a coil positioning device for a wireless charging system comprising: a movable coil unit with a first coil; and a drive mechanism coupled to the movable coil unit to move the movable coil unit into a charging position with respect to a second coil. The drive mechanism comprises a motor and a converter mechanism for transferring an output generated by the motor to the movable coil unit to generate a multidimensional movement of the movable coil unit.

Coil positioning device

A device for wirelessly charging an item of user equipment, intended to be installed in a motor vehicle. The device includes a housing delimiting an inner space, having a frame on which there is installed a support intended to receive an item of user equipment able to be recharged through wireless energy transmission. The device includes a wireless charging module installed in the inner space of the housing, having a circuit board on which there is installed a single transmitter coil configured so as to transmit an electromagnetic field for wirelessly charging the item of user equipment, it includes a rack mechanism able to be actuated by a user so as to move the transmitter coil along the support to a wireless charging position of the item of user equipment.

Device for inductively charging a piece of user equipment, intended for a motor vehicle

Disclosed is an inductive charging system for a portable electronic device, the system incorporating at least one induction coil and having a receiving face for the application of the device including a receiving coil positioned on the receiving face in electromagnetic contact with the induction coil. The receiving face includes multiple series of tabs defining at least discontinuously a perimeter corresponding to the device, the tabs of each series projecting from the receiving face in a first position being movable from the first position to a second position in which each tab is retracted into the receiving face under an application of a force corresponding to that exerted on this tab by the device when applied against the receiving face.

Universal inductive charging system for a portable electronic device

A method for the hands-free access to a motor vehicle (V) is combined with a method for monitoring tire pressure. More particularly, wheel units () belonging to the tire pressure recognition system detect the cessation of low frequency LF transmissions caused by the recognition of a badge B paired with the vehicle in order to trigger the measurement via the wheel units of the pressure and temperature values prevailing in each tire of the vehicle. These pressure and temperature measurements are sent to a central unit (), which is mounted on the vehicle, so as to provide the driver with this information. The temperature and pressure measurements are transmitted to the central unit as soon as the measurements have been taken, irrespective of whether or not the driver has entered the vehicle.

Method for the hands-free access to a motor vehicle and for monitoring the pressure of the tires mounted on said motor vehicle

A method for determining a pivoting angle (&#x3b1;) of a wheel unit () mounted onto a snap-in inflation valve () includes the following three phases: 

Method for determining a pivoting angle of a wheel unit mounted onto a snap-in inflation valve

A charging bench includes three coils that partially overlap, in superposed planes. An electrical feed makes it possible to supply the coils with an AC current from the mains. A portable device to be charged is placed on the upper side of this charging bench. This device includes a winding intended to receive the electrical charging, and a ferrite protective screen. One of the coils (Bb) is selected to emit the magnetic charging flux toward the mobile phone. The selection is carried out via the emission of a series of pulses by at least one of the coils and comparison of return signals with a reference threshold. This comparison also enables one of the other coils (Ba, Bc) to be selected or both of these other two coils (Ba, Bc) to be used to receive a flux for communicating information originating from the portable device to be charged.

Method and charging bench via magnetic coupling

A device () for charging a portable element () having a receiving antenna (Ar) for charging by induction, the charging device () includes: a charging surface (Sc); a plurality of emitting antennas (A, A); a layer of ferromagnetic material () placed beneath the plurality of emitting antennas (A, A); an electronic circuit; a plurality of resonators (R, R. . . Ri): having a resonance frequency substantially equal to the emission frequency of the antennas, placed between the plurality of antennas and the charging surface, and suitable, when they are activated, for reflecting the magnetic field (B) emitted by the antennas, and connected to the electronic circuit in order to be deactivated individually, according to a criterion of positioning of the receiving antenna relative to the resonators. An associated charging method is also described.

Device for charging a portable element and associated method

An inductive charging device () for a portable apparatus for an automobile vehicle including at least one charging antenna () for inductive charging of the WPC type having a cut-out at its center () together with one communication antenna () for near-field communication of the NFC type, situated around the at least one charging antenna, along the sides of the charging device (Z, Z, Z, Z) and including at least one winding, the device being such that:

Inductive charging device for a portable apparatus incorporating a near-field communication antenna

A method for self-calibrating, while a vehicle is moving, an accelerometer mounted on a wheel of the vehicle so that its plane of maximum sensitivity is secant with the axis of rotation of the wheel. The average value and on the other hand the amplitude of the signal representative of the acceleration Acc-read delivered by the accelerometer are calculated first, for an established speed of the vehicle, based on measurements performed by the accelerometer during a time window corresponding to the time needed for the wheel to complete n rotations, with n&#x3e;1, then the values of the gain C1 and of the offset C2 of the accelerometer are determined by resolving the system of two equations with two unknown values:&#x3c9;1&#xd7;(average value of Acc-read)+22 g=1&#xd7;(amplitude of Acc-read)

Method for self-calibrating an accelerometer mounted on a wheel of a vehicle while said vehicle is moving

In a system for monitoring the pressure of the tires of a vehicle, it is proposed to compensate the raw data of the parameters of the tires only if the comparison of the successive raw data of at least one reference parameter exhibits a deviation, in absolute value, greater than a determined threshold of variation. In a TPMS monitoring system, each wheel unit includes sensors for measuring the parameters of pressure, temperature and acceleration, and elements of storage and autonomous power supply, in conjunction with a processor. The raw data provided by the sensors are stored, compensated and transmitted as finalized data by a radiofrequency emission circuit to a central unit. It is proposed that the wheel unit also includes, in a processing module, comparison elements, external to the processor, for comparing between successive raw data of one and the same parameter that are provided by the measurement sensors.

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Toulouse, France

Youri Vassilieff