WO2018015244A1 - Vehicle component assembly with inductive transmission - Google Patents

Abstract

The aim of the invention is to allow a simple and reliable energy or data transmission between a body part and an attachment part which is movable relative to the body part. Thus, a vehicle component assembly is provided with a body part (9), an attachment part (10) which can be moved relative to the body part (9), and a transmission device (14, 15) for transmitting energy and/or data from the body part (9) to the attachment part (10). The transmission device (14, 15) has a first and a second coil device for inductively transmitting energy and/or data between the two coil devices. The first coil device (14) is secured in or to the body part (9), and the second coil device (15) is secured in or to the attachment part (10).

Description

description

The present invention relates to a Fahrzeugkomponen ^¬ tenanordnung with a body part, an attachment that is movable relative to the body part, and a transmission device for transmitting energy and / or data from the body part to the attachment or vice versa.

Apart from drive components, a vehicle generally has a multiplicity of vehicle components which are movable relative to one another and require energy or data. Typical movable vehicle components are doors, flaps, seats, blinds, roofs, but also glass panes and the like. Thus, for example, the side windows of the vehicle, which can be moved up and down for closing and opening, for darkening or displaying information to be supplied with energy or data.

Next to the chassis and the drive a vehicle has a body which is ^¬ represents the so-called "structure" of the vehicle. (Hereinafter also called chassis ^¬ advised rush) parts of this body are generally equipped with rigidly to the vehicle. ATTACHMENTS moving parts as attachments be ^¬ stands. in the specific case of a movable glass pane on a door and the door as a body part and the glass can be seen as attachment. the energy transfer into so-called "smart glasses" (Smart glass), in which an electrically operated function is integrated ( eg sunroofs, side windows with switchable tinting foils), currently takes place via so-called towing cables. These allow the transmission of energy in any position z. B. the sunroof opposite the vehicle body. Due to the movement of the electrically supplied attachment relative to the body part, it is not uncommon for a cable break at the transition to the attachment (eg the disc) due to wear. Mechanical strain relief of the cable on the side of the disc are usually complex and problematic. In addition, a corresponding space for the movement of the trailing cable during operation is provided. In some cases, there is a considerable hazard potential due to high-voltage technology for switchable tinting foils if the cable insulation is damaged.

The object of the present invention is thus to enable a less complex energy and data transmission between mobile vehicle components.

According to the invention this object is achieved by a Fahrzeugkompo ^¬ nentenanordnung according to Claim. 1 Advantageous developments of the invention will become apparent from the dependent claims. According to the present invention is therefore a

Vehicle component assembly with a body part and an attachment, which is movable relative to the body part provided. The body part is usually firmly connected to the chassis and the attachment is movably mounted on the body part. In order to be able to transmit electrical energy and / or data to the attachment (or vice versa), a transmission device for transmitting energy and / or data from the body part to the attachment or vice versa is provided. The transmission of energy or data should be done inductively here. The transmission device therefore has a first and a second coil device for the inductive transmission of energy and / or data between the two coil devices. The first coil means is fixedly arranged in or on the body part or fixed about it and the second coil means fixed in or on the attachment or there. Thus, the two coil devices are mutually displaceable and yet an electrical coupling is guaranteed. The first or second coil means, a tracking unit, in particular a lever spring, a Füh ^¬ approximately scenery or a motor having a coil of the respective coil means is disposed at the distal end thereof which is held by the tracking unit at the other of the two coil means or against she is pressed. In a variant, the tracking unit has a deflectable lever, at the distal end of which a coil of the respective coil device is arranged, which is pressed by spring force against the other of the two coil devices. Thus, the coils of the two coil means can remain as close to each other as possible, even if the coils move relative to each other. By the lever, this proximity can be ensured even if the coils are not only perpendicular to their

Spool axes move relative to each other, but at least in a component of movement also parallel to their coil axes. Instead of the spring and a servomotor can track the lever accordingly. Alternatively, the tracking unit may also have a passive guide slot, with which the one

Coil means along the other coil means can be performed.

In the embodiment of the vehicle component assembly with the lever, it is particularly advantageous if this lever has two rotary joints ^¬ , namely one on the respective coil means and one on the body part or attachment. As a result, the coils of the two coil devices can be held flat on each other at least for two degrees of freedom of movement.

In one embodiment, the first and / or the second coil device each have a plurality of individual coils in the direction of mobility of the attachment relative to the body part immediately adjacent to each other. In this way, for example, a single-layer arrangement of coils can be realized.

Furthermore, it can be provided that the first and / or the second coil device in each case a plurality of individual coils in Has direction of mobility of the attachment relative to the Ka ^¬ rosserieteil overlapping. Such an overlapping arrangement of coils can be made possible by a multilayer construction. The overlaps have the advantage that the coupling factor in the direction of displacement does not vary as much as with coils arranged side by side.

In a specific embodiment, the first and second coil means each comprises a plurality of individual coils which are each assigned a separate resonant circuit and equal ^¬ judge each coil. Such a separate evaluation of the coils has the advantage that they can be evaluated completely independently of each other. In a further development, the outputs of all

 Rectifier connected in parallel. This has the advantage that the individual coils are indeed evaluated separately, but then a common further processing can take place. In an alternative embodiment, the first or second coil means comprises a single coil associated with a series resonant circuit and a MOSFET controller is used for a bridge rectifier and for voltage regulation or power regulation. In this way, a simple evaluation circuit can be achieved and that

 MOSFET control has multiple functionality in terms of rectification and regulation.

In the alternative embodiments, when the first or the second coil means comprise a plurality of coils, only one of the coils for the inductive transmission is always in operation at any time. Preferably, this exactly one coil is the one having the largest coupling factor with a coil of the other coil device. This can always work with a high transmission efficiency and a high signal-to-noise ratio. In a particularly preferred embodiment of the vehicle component arrangement, the attachment comprises a glass pane. This can be, for example, a so-called "smart glass" or an intelligent glass pane, which has an active foil which can be controlled by the transmitted energy or the transmitted data, in particular, for example, from the body part to the glass pane transmitted energy, the transmissivity of this glass or film are changed.

In alternative embodiments of the vehicle component assembly, the attachment is a roller blind, a sunroof, a vehicle seat, a vehicle door or a vehicle door. This list is not exhaustive. Rather, other mounting parts that move relative to the body and a Ka ^¬ rosserieteil of the vehicle, power and data ent ^¬ speaking the present invention can be transmitted inductively.

The present invention will now be explained in more detail with reference to the accompanying drawings, in which:

Fig. 1 is a single-layer coil field with adjacent

 Do the washing up;

Fig. 2 shows a two-layer coil field with partially

 overlapping coils;

Fig. 3 shows an arrangement of a receiver between the glasses of a disk;

Fig. 4 shows an arrangement of the receiver on the surface of one of the lenses of the disc;

5 shows a body part with lever for inductive picking of an attachment.

Fig. 6 is a block diagram of an energy transmitter with two

Transmitter coils; Fig. 7 is a block diagram of a power receiver with receiver coil array;

FIG. 8 shows a coupling factor as a function of the position of a single transmitting coil with three receiving coils; FIG.

9 shows an arrangement with two half-overlapping transmitting coils and three adjacent receiving coils;

10 shows a coupling factor as a function of the position of the two semi-overlapping transmitting coils to three receiving coils of FIG. 9; and FIG. 11 shows a transmitted power in an arrangement with two half-overlapping transmission coils according to FIG. 9, depending on the position x.

The embodiments described in more detail below represent preferred embodiments of the present invention. It should be noted that the individual features can be realized not only in the described feature combinations, but also in isolation or in other technically meaningful combinations of features.

There is provided a comfortable energy transfer between mutually movable components in automotive engineering. These movable components are, on the one hand, a body part and, on the other hand, an attachment mounted movably thereon. For example, a solid body frame as a body part and the vehicle door can be seen as a movable attachment. Also, for example, the vehicle body part may be the vehicle floor, and a vehicle seat, which can be moved relative to the vehicle floor, is understood as an attachment. The same applies to roller blinds, sliding roofs and the like. In the broadest sense, however, a vehicle door can also be seen as a body part, for example. In that case, the glass pane would again be the attachment, which can be moved opposite the door. In the following, body parts and attachments are also summarized as

Vehicle components referred. In one embodiment, energy transfer occurs from a transmitter attached to a first vehicle component to a receiver attached to a second vehicle component. In particular, this energy transfer is made inductively. Accordingly, a non-contact transmission from a body part to an attachment or from an attachment to a body part comes about.

The transmitter, for example, on the first vehicle component can either be immovably connected to this or via a tracking unit, eg with a deflectable lever, movable. Likewise, the receiver on the second vehicle component either immobile or via a tracking unit, for example, with a deflectable lever, be movably coupled thereto. In the case of the lever (explained in connection with FIG. 5 in detail) may press it by a spring for example, the transmitter or the receiver against the surface of the respective other vehicle ^¬ component. As a result, the second vehicle component can execute a movement in at least one direction relative to the first vehicle component, during which the energy transmission takes place uniformly without interruption.

The transmission of energy is accomplished by inductive coupling by coupling the alternating magnetic field generated by the transmitting coil to the receiver coil. The medium used to transmit the energy can then also be used for information exchange between transmitter and receiver, for example in the form that an amplitude modulation of the carrier wave generated by the transmitter is used in data transmission from the transmitter to the receiver, and in data transmission from the receiver to the transmitter of the receiver to the carrier wave generated by the transmitter

Applies load modulation. The modulation on the one hand faces demodulation on the other to recover data content. Although a single coil can in principle be used on the receiver side, a large number of coils is advantageous if a larger range of motion is desired between the vehicle components. Thus, for example, as shown in FIG. 1, a plurality of coils 1 are formed as a single-layer field with adjoining coils 1. Alternatively, the plurality of coils 1 can be realized as a multilayer field according to FIG. 2 with overlapping coils 1. In both cases, the coils are arranged along the direction of movement. If this coil arrangement is the secondary side, and the recipient, the primary side or the transmitter can be performed as a single coil or as few overlapping coils from ^¬. As a result, an always sufficiently good magnetic coupling or energy transfer can be achieved for each position.

The coil 1 may be designed as discrete coils or as printed ^¬ ten-coils. Optionally, the dimensioning of the coil geometries depending on the

Optimized available space. Thus, for example, both the transmitter side and the receiver side rectangular coils can be arranged directly adjacent to each other or overlapping.

Optionally, in one exemplary embodiment, a ferrite foil or a ferrite plate can be used behind the receiving coil (s) for increasing the coupling factor. In the event that Lei ^¬ terplatten coils are used, the ferrite foil can be glued to the circuit board, wherein at the locations of any mounted on the circuit board components, the ferrite is recessed.

If the receiver has a multiplicity of receiver coils, a series resonant circuit and a rectifier can be provided for each of the receiver coils (see FIG. 7). In addition, the rectifier outputs can be used for the large number of Catching coils on a common rail parallel zusammenge ^{¬ be} switched (see also Fig. 7).

In the case of a single receiver coil, a series resonant circuit and a controlled MOSFET can be used as a "smart" bridge rectifier

MOSFET control (phase angle) used for voltage or power ^¬ control. While the above aspects have referred to the receiver, the following aspects relate to the coils of the transmitter. For example, a single transmitter coil can be used on the transmitter side. This application is suitable for using a coil field on the receiver side. The dimension of this single coil can be designed so that, when the transmitter coil is displaced relative to the field of the receiver coil, the Kop ^¬ pelfaktor has the lowest possible variance.

In a specific application, two or three transmitting coils may be provided, which are arranged overlapping. In order to achieve the highest possible coupling factor, the form factor of each of the transmitting coils is equal to or as close as possible to that of the individual receiving coils of the field. Preferably, only one of the two or three transmitting coils is always in operation, which offers the largest coupling factor with the receiving coils. When the transmitting coils are displaced relative to the receiving coils, the next adjacent transmitting coil should be switched over when the coupling factor is reduced (compare also the comments on FIGS. 6 and 10).

As with the receiving coils, a multiplicity of transmitting coils can be designed as a single-layer field with adjacent coils (see FIG. This application is suitable for a single coil on the receiver side. It is then preferably only one transmitting coil in operation, which offers the largest coupling factor with the receiving coil. Alternatively, an application of a plurality of transmitting coils as a multilayer field with overlapping coils can also be used here take place (see Fig. 2). This application in turn is suitable for a single coil on the receiver side. Again, preferably only one transmitting coil is in operation, which offers the largest coupling factor with the receiving coil.

To increase the coupling factor, a ferrite foil or a ferrite plate can also be used behind the transmitting coil (s). When using a plurality of transmit coils, the select MOSFET should be placed directly near the coil to reduce the lines that need to carry a high current. A further optimization may be that the control electronics are arranged directly on the transmitting coils in a plurality of transmitting coils. In a specific exemplary embodiment, the attachment or the motor vehicle component to which an energy ^{receiver is} fastened is a glass pane. This glass pane can have two laminated glasses. In a variant according to FIG. 3, the energy receiver including a coil 2 or coil arrangement and an electronic unit 3 can be arranged between the two glasses 4 and 5. To increase the coupling factor, a ferrite foil 6 or ferrite plate can be arranged between the coil 2 and the electronics 3. Between the glasses 4 and 5 of the disc can also be an active film 7, which is controlled by the electronics 3. One or both

Glass panes 4, 5 may have a reduced thickness at the location where the receiving coil 2 of the electronics 3 sits in order to make room for these components. In this case, both discs can be pulled through to the edge and connected to each other at the edge, so that the electronics 3 is completely enclosed. Any voids between glasses 4, 5 and electronics 3 can be filled with potting compound. The potting compound contributes to heat distribution and mechanical stability. According to an alternative variant according to FIG. 4, an arrangement of the energy receiver takes place at the edge of one of the two glasses 4, 5, here the glass 5. The (in the case of a glass sunroof) underlying (pointing to the passenger compartment) Disk 5 is then, for example, not pulled to the edge by ^¬ , but ends z. B. about 30 mm in front, so that an edge with only one glass 4 (the top facing outward disc) is formed. On this edge, the receiver coil (s) and electronics are housed as approximately 30 mm wide strip, so that the coils down (to the passenger compartment) and the electronics 3 are directed upward. Coils 2 and electronics 3 are preferably coated with a potting compound 8. The potting compound 8 ensures the mechanical connection of the coils / electronics to the pane and also contributes to the distribution of the heat. The geometric design should be such that as little heat as possible goes into the glass.

In a concrete example of a vehicle component arrangement according to the invention according to FIG. 5, a first vehicle component z. B. body part 9, relative to another vehicle component, for. B. attachment 10, two-dimensional be ^¬ movable. An energy transfer is to take place from a transmitter 14 (first coil device) connected to the body part 9, for example via a deflectable lever 11 loaded with a spring 12, to a receiver 15 (second coil device) which is connected to the body part 9 in two directions X and Y. movable attachment 10 is mounted. In this example, the receiver 15 has a single-layer field of adjacent receiving coils. The transmitter 14 has two semi-overlapping arranged transmitter coils.

The spring 12 presses the transmitter 14 via the lever 11 always in the direction of the receiver 15, regardless of whether the attachment 10 moves relative to the body part 9 in the horizontal direction X or in the vertical direction Y. Thus, the surface of the transmitter 14 always parallel to the surface of the fixture 10 applies (regardless of the defined by X and Y position of the fixture 10 relative to the body part 9), the lever 11 via hinges 13 both with a vehicle component, namely the Body part 9, and also connected to the transmitter 14. Instead of the spring, an electric motor, ie a corresponding motor system, can also be used for tracking purposes. Of the

Electric motor possibly with gearbox adjusts the angle of the lever in order to keep the distance between transmitter 14 and receiver 15 preferably at an equal value. One of the two hinges can be active (moved by the electric motor) and the other passive. Optionally, the second rotary joint 13 can also be moved by a further electric motor. For controlling or regulating the lever 11, a distance sensor may be arranged on the transmitter 14 or the receiver 15. His signal is from a

Control device used to drive the one or more electric motors.

Instead of the pivoting lever, the tracking unit can also be a linear actuator axis with rotary drive and corresponding

Have gear for implementation in a linear motion or a linear motor. For example, the linear movement can take place perpendicular to the body part 9. With a swivel joint 13 (active or passive), the transmitter and the receiver can then be held parallel again.

In a further alternative embodiment, the first coil device or the transmitter 14 can be guided on or along the second coil device or the receiver 15 by means of a guide link, which is part of the tracking unit. A lever 11 as in the embodiment of Fig. 5 via the two hinges, the first coil means 14 and the guide slot holds the first coil means 14 on the second coil means 15. The guide slot may have a groove along which a spring element slides.

In connection with FIG. 6, an energy transmitter, as can be used for the vehicle component arrangement according to the invention, will now be presented in more detail. The energy transmitter has, for example, two semi-bridges HB1 and HB2 designed in semiconductor technology, which together form a full bridge and which has a filter F and a likewise z. B. executed in semiconductor technology selector switch AS (here two Halbleiterszel- Switch) drive a series resonant circuit with a transmitter coil LI or L2 and a resonant capacitor C. For example, the two transmitter coils may overlap one another halfway. To generate the energy-carrying alternating magnetic field carrier, the two half bridges HB1 and HB2 are controlled by a microcontroller uC by PWM signals PWM1 and PWM2 z. B. controlled at a fixed frequency f. The energy transmitter is supplied with operating voltage via a vehicle interface FSS and can communicate with other systems in the vehicle (eg CAN or LIN).

The microcontroller uC can control the transmission power both via the operating voltage of the half bridges HB1 and HB2 and via the duty cycle of the rectangular signals at the outputs PWM1 and PWM2. For this purpose, the energy transmitter has a setting unit EE, with which the operating voltage of the transmitter driver stages from the microcontroller uC is adjustable. From the vehicle interface, a voltage supply of the setting unit EE and a power supply unit SV for the microcontroller uC and a demodulator DM.

In addition, there is a data connection DV between the vehicle interface FSS and the microcontroller uC. In addition, the microcontroller μC can transmit data to the energy receiver by, for example, applying an amplitude modulation to the carrier. For this purpose, a small modulation depth can be used. The modulation is performed by varying the duty cycle of the signals at the outputs PWM1 and PWM2. As a demodulator DM of a data transmission from the power receiver back to the power transmitter, for example, a synchronous demodulator such as the PCF7991 can be used. For this purpose, its demodulator input RX is connected via a resistor R to the series resonant circuit of the transmitter (LI or L2 and C). The demodulator DM is supplied by the microcontroller uC with a clock clk of, for example, the frequency 32 * f. The microcontroller uC and the demodulator DM can exchange control data ctr and RX data via a control line. In connection with FIG. 7, an energy receiver will now be described in more detail. It has a receiver coil field with n coils LI to Ln, which are arranged lying next to one another in a plane or overlapping in two planes. Each coil LI to Ln is part of a series resonant circuit having a respective capacitor C. For each coil there is a rectifier which may be either a bridge rectifier (as shown in Fig. 7) or a full wave rectifier. The rectifier outputs are combined on a buffer capacitor C_buffer for smoothing the DC voltage obtained. The DC voltage feeds two power supplies SV1 and SV2. The first power supply SV1 supplies the resources of the power receiving device (in particular the microcontroller uC) and the second power supply SV2 is used by the application itself. The microcontroller uC controls the power supply by means of the second power supply SV2 as well as the application.

To receive data that the energy sender uses

Amplitude modulation of the carrier to the energy receiver of FIG. 7 transmits, for example, the energy receiver uses a consisting of the components diode Dl, capacitor Cl, resistor Rl and amplifier VI envelope detector. This transforms the modulation of the energy transmitter into a digital pattern, which can be evaluated in the microcontroller uC.

For example, to send data to the energy transmitter, the energy receiver uses impedance modulation by switching, for example via a semiconductor switch or modulator M, a load resistor R_mod in time with the transmit data TXdata in parallel with the rectifier outputs. The modulated impedance is formed on the side of the transmitter on the carrier signal as amplitude and / or phase change, which can be converted back into the data signal by the local demodulator.

With regard to the data communication, the same physical medium as for the energy transmission can be used. In one example, the so-called communication type is The protocol may be byte-oriented using, for example, a sync byte, a header byte, n data bytes, and a checksum byte, each byte having, for example, a start bit, eight data bits, a parity bit and a stop bit

Checksum for each packet and a parity bit for each byte. Data content can be a) power control on the receiver side and b) control and diagnostics of the application.

The control of the received power / voltage may be necessary if, for example, by the movement of the receiver relative to the transmitter, the coupling factor varies so much that the supply voltage or power for the application does not remain stable. Similarly, the control may be required if the power consumption of the application itself varies greatly. An example of a communication concept can be designed as follows: The energy receiver periodically transmits the energy requirement to the energy transmitter. The packet can have, for example, four bytes or 44 bits. If a bitrate of 4 kbps is used, this corresponds to a time length of t = ll, 26 ms for each packet. The power transmitter receives the periodic messages and adjusts the transmission energy (Trä ^¬ geramplitude) accordingly. The cycle time of the periodic messages is t = 20 ms. In the gaps with t = 8.74 ms the energy transmitter has the opportunity to send a message to the energy receiver. If this happens, the energy receiver notices the beginning of a data reception from the energy transmitter and, as long as this reception does not take place, the periodic transmission of the energy demand does not take place.

An energy transfer during movement of the energy receiver relative to the energy transmitter will now be illustrated with reference to FIG. In one embodiment, the energy transfer with a transmitter coil and a field of adjacent

Reception coils, the coupling factor between the transmitter coil and the individual receiving coils changes when the transmitter coil moves relative to the receiving coil, because the distances changed by the movement between the transmitting coil and the individual receiving coils. FIG. 8 shows the coupling factors K_L1, K_L2 and K_L3 in percent as a function of the position x of a transmitting coil to three adjacent receiving coils LI, L2 and L3. It can be seen in FIG. 8 that the coupling factor for the three receiving coils depends on the position x. Each coil has a primary maximum and two secondary maxima on either side of the primary maximum, each with a zero between the primary and secondary maximums. The secondary maxima do not matter. Due to the geometry of the receiving coil and the transmitting coil (position and dimensions of the receiving coils, dimension of the transmitting coil) results in an overlap of the three coupling factor curves. Decisive for the energy transfer is the larger available coupling factor, ie the envelope of the three coupling factors.

If one considers the envelope of the three coupling factors K_L1, K_L2 and K_L3, this envelope varies between 52% and 24%. This variation of more than a factor of 2 between minimum and maximum is very large. This can make it difficult to transfer the necessary energy for each position x to the receiver side.

The variation of the coupling factor and the envelope can be reduced by various measures: a) the individual transmitting coil relative to the individual receiving coils ^¬ is made very long.

b) The individual receiving coils are not arranged one-layered next to each other, but two-layered half-overlapping. c) Instead of a single transmitter coil, two or more partially overlapping transmitter coils are used.

The solution a) leads to a lower variance of the coupling factor, but also that it is generally lower. Therefore, the solution b) and c) are preferable. A solution c) with two half-overlapping transmission coils L_Top and L_Bot is shown with reference to FIGS. 9 and 10. For example, a ferrite foil 6 is located above the transmitting coils L_Top and L_Bot. gieempfänger has, for example, three receiving coils LI, L2 and L3. Below this, facing away from the transmitter, again a ferrite film 6. Transmitter and receiver are, for example, spaced by the value y.

10 shows the course of the coupling factors of each of the two transmitter coils L_Top and L_Bot to the three receiver coils LI, L2 and L3. The coupling factors result accordingly

K_Ll_Bot, K_Ll_Top, K_L2_Bot, K_L2_Top, K_L3_Bot and K_L3_Top.

As can be seen from FIG. 10, the maximum variance of the coupling factor envelope is now only in the range of 57% to 44% (with a transmitting coil it ranged from 52% to 24%). Furthermore, it can be seen that the maxima of the two transmitter coils differ. The L_Bot coil always has a larger coupling factor K than the L_Top coil. This is caused by the different distance of the two transmitter coils to the receiver coils.

To actually cover the range 44% to 57%, it is necessary for the transmitter to always use only the transmit coil that provides the higher coupling factor. To do this, the sender uses the energy demand (communication) periodically transmitted by the receiver as a data packet. In addition to the energy requirement, the data packet may contain further information (information 1) indicating whether the application of the receiver has a higher energy requirement. Likewise, the transmitter can receive additional information (information 2) via a further interface (vehicle interface FSS, see Fig. 6), indicating whether the receiver is being moved relative to the transmitter.

Information 1 and 2 allow the sender to determine if any increased energy demand is caused by the application alone, or by the motion of the receiver, or both. If it is determined that there is an increased energy requirement due to the participation of the movement, then it switches to the other coil and checks whether the subsequent energy requirement of the receiver is lower has become. In Fig. 11, the transmitted power P_Top and P_Bot of each of the two transmitting coils to the receiver are shown depending on the position x. It can be seen that with appropriate switching of the transmitter coils the power is uniformly available.

Reference sign list

1 coil

 2 coil

 3 electronics

 4 glass

 5 glass

 6 ferrite foil

 7 active foil

 8 potting compound

 9 body part

 10 attachment

 11 lever

 12 spring

13 swivel joint

 14 stations

 15 recipients

AS Selector switch C Resonance capacitor

Cl capacitor

 C_Buffer Buffer capacitor clk clock

ctr control data

DI diode

 DM demodulator

 DV data connection

 EE adjustment unit

F filter

f fixed frequency

 FSS vehicle interface

HB1 half bridge

 HB2 half bridge

 K_L1 coupling factor

K_L2 coupling factor

 K_L3 coupling factor

 LI transmitter coil

L2 transmitter coil Ln transmitter coil

 L_Bot transmission coil

 L_Top transmitting coil

 M modulator

P_Bot performance

 P_Top performance

 PWM1 output

 PWM2 output

 R resistance

Rl resistance

 R_mod load resistor

 RX demodulator input

 SV power supply unit

SV1 power supply

SV2 power supply

 TXdata transmission data

μC microcontroller

 VI amplifier

x position

X direction

 Y direction

Claims

claims 1. vehicle component arrangement with  a body part (9), - An attachment (10) which is movable relative to the body part (9), and  a transmission device for transmitting energy and / or data from the body part to the attachment or vice versa, d a d u r c h e c e n c i n e s that  - The transmission means a first and a second  Coil means for inductive transmission of energy and / or data between both coil means, - The first coil means (14) is fixed in or on the body part (9) and  - The second coil means (15) is fixed in or on the attachment (10). 2. Vehicle component arrangement according to claim 1, wherein the first or second coil device (14, 15) has a tracking unit, in particular a lever with spring, a guide slot or a motor system, at the distal end of which a coil of the respective coil device (14) is arranged. which is held by the tracking unit on the other of the two coil means (15) or pressed against it. 3. Vehicle component arrangement according to one of the preceding claims, wherein the first and / or the second coil means (14, 15) each have a plurality of individual coils (1) in the direction of mobility of the attachment (10) relative to the body part (9) immediately adjacent to each other. 4. Vehicle component arrangement according to one of the preceding claims, wherein the first and / or the second coil means (14, 15) in each case a plurality of individual coils (1) in the direction of mobility of the attachment (10) relative to the body part (9) overlapping. 5. Vehicle component arrangement according to one of the preceding claims, wherein the first or the second coil means (14, 15) each having a plurality of individual coils (1), each coil of which is associated with a separate resonant circuit (LI to Ln; C) and rectifier. 6. Vehicle component arrangement according to claim 5, wherein the outputs of all rectifiers are connected in parallel. 7. Vehicle component arrangement according to one of the preceding claims, wherein the first or the second coil means (14, 15) has a single coil (1), which is assigned to a series resonant circuit, and a MOSFET control element (M) for a bridge rectifier and for voltage regulation or Power regulation. 8. Vehicle component arrangement according to one of claims 1 to 6, wherein the first or the second coil means (14, 15) comprises a plurality of coils (1), but at any time only exactly one of the coils for the inductive transmission is in operation. 9. A vehicle component assembly according to claim 8, wherein only that of the coils (1) is in operation, which has the largest coupling factor with a coil (1) of the other coil means. 10. Vehicle component arrangement according to one of the preceding claims, wherein the attachment (10) comprises a glass pane 4, 5). 11. Vehicle component arrangement according to claim 10, wherein the glass pane (4, 5) has an active, controllable by the transmitted energy or the transmitted data sheet (7). 12. Vehicle component arrangement according to one of claims 1 to 9, wherein the attachment (10) is a roller blind, a sunroof, a vehicle seat, a vehicle door or a vehicle door. 13. Vehicle component arrangement according to one of claims 2 to 12, wherein the lever (11) comprises two pivot joints (13), namely one on the respective coil means and one on the body part (9) or attachment (10).