DE102021125364A1 - Input device, loading ramp with the input device and loading system with at least one loading ramp - Google Patents

Abstract

The invention is based on an input device with at least one operating unit (32) for actuation by a user, with at least one output unit (24) and with at least one computing unit (26) for controlling the output unit (24) depending on an actuation of the Operating unit (32), the output unit (24) comprising at least one acoustic output element (34) which is intended to output at least one acoustic signal (62). It is proposed that the acoustic output element (34) be designed and/or is arranged that at least one haptic feedback signal is generated on the operating unit (32) via an output of the acoustic signal (62).

Description

State of the art

An input device with at least one operating unit for actuation by a user, with at least one output unit and with at least one computing unit for controlling the output unit as a function of actuation of the operating unit has already been proposed, with the output unit comprising at least one acoustic output element which is intended to output at least one acoustic signal.

The object of the invention is in particular to provide an input device of the generic type with improved properties in terms of compactness and complexity. In addition, advantageously reduced production costs and an advantageously high degree of individualization for users should be made possible. The object is achieved according to the invention by the features of patent claim 1 and patent claim 11, while advantageous configurations and developments of the invention can be found in the dependent claims.

Advantages of the Invention

The invention is based on an input device with at least one operating unit for actuation by a user, with at least one output unit and with at least one computing unit for controlling the output unit depending on an actuation of the operating unit, the output unit comprising at least one acoustic output element which is intended to output at least one acoustic signal.

It is proposed that the acoustic output element be designed and/or arranged in such a way that at least one haptic feedback signal is generated on the operating unit by outputting the acoustic signal. A feedback signal, in particular the haptic feedback signal and/or an acoustic feedback signal, is preferably provided to inform a user of an activity, in particular an interaction with the input device, an action, in particular an actuation of the control unit, preferably by a Press, touch, flip, slide, gesture or the like. a control element of the control unit. In particular, a feedback signal, in particular the haptic feedback signal and/or the acoustic feedback signal, is designed in such a way that it can be recorded, in particular heard and/or felt, by a user operating the operating unit. The haptic feedback signal or the acoustic signal, which is provided for generating the haptic feedback signal, and the acoustic feedback signal preferably differ in terms of a respective frequency range. The acoustic feedback signal is preferably different from an acoustic signal generated by a haptic output element, such as a multivibrator, a vibration alarm or the like, which is only weakly audible, in particular for a human being. An acoustic feedback signal to be output preferably has a higher frequency range than the acoustic signal for outputting the haptic feedback signal. The acoustic signal for generating the haptic feedback signal preferably has a frequency from a value range between 10 Hz and 40 Hz. An acoustic feedback signal to be output preferably has a mean frequency of more than 100 Hz, preferably more than 500 Hz and preferably more than 1000 Hz. The acoustic feedback signal is embodied in particular as an acoustic signal which is intended to be recorded, in particular heard, by a user upon actuation of the operating unit. In particular, the acoustic output element is provided to generate the haptic feedback signal by means of the acoustic signal by exciting a resonance of the operating unit, in particular the operating element(s).

The acoustic output element preferably comprises at least one sound body for generating acoustic signals. The acoustic output element is preferably designed as a loudspeaker. In particular, the operating unit comprises at least one operating element, preferably a plurality of operating elements. It is conceivable that the output unit includes a plurality of acoustic output elements, for example in order to output a haptic feedback signal on different control elements of the control unit. The operating unit is set up in particular to, when the operating unit, in particular at least one operating element of the operating unit, is actuated by a user, for example by pressing, touching, tilting, pushing or gestures or the like, at least one electrical and/or generate an electronic input signal. The operating unit is preferably set up to generate different input signals for different operating elements and/or different operating forces acting on an operating element when it is actuated. In particular, the operating unit is set up to transmit the at least one input signal to the computing unit. The computing unit is preferably connected to the operating unit by cable or wirelessly. Under a "rake Unit" is to be understood in particular as a unit with at least one electronic control system, which preferably has at least one processor unit, which can be used, for example, as a processor, a microcontroller, an FPGA or the like. is formed, and at least one, in particular physical, memory unit, for example flash memory, a hard disk, an SSD or the like., As well as at least one operating program stored on the memory unit. In particular, the arithmetic unit is designed as a populated electronic circuit board. The computing unit is preferably connected to the output unit by cable or wirelessly. The arithmetic unit is preferably set up to control the output unit depending on the input signal for outputting the acoustic signal and/or the acoustic feedback signal. In particular, the input signal includes at least one electrical parameter, such as a voltage level and/or a current strength, which depends in particular on the type and/or strength of an actuation of the operating unit by the user. The computing unit is preferably set up to control the output unit in such a way that at least one output parameter of a feedback signal to be output is set as a function of the electrical parameter of the input signal. An "output parameter" is to be understood in particular as a parameter of a feedback signal to be output, in particular the haptic feedback signal and/or the acoustic feedback signal, which means that the feedback signal is output and preferably recorded by a feedback signal users affected. For example, the output parameter is a signal strength, in particular a volume of the acoustic feedback signal or a vibration strength of the haptic feedback signal, a signal frequency or

wavelength, as a signal length, as a signal delay, in particular for actuation or input of the input signal, or the like. educated. The computing unit is preferably set up to generate at least one electrical and/or electronic control signal for controlling the output unit for outputting the acoustic signal and/or the acoustic feedback signal, depending on the input signal, in particular the electrical parameter of the input signal. A large number of mutually different value ranges for the input signal, in particular for the at least one electrical parameter of the input signal, are preferably stored in the arithmetic unit, with at least one control signal being assigned to each value range. The control unit is preferably set up to generate a control signal if an input signal transmitted by the operating unit lies within the value range assigned to the control signal. Control signals to be generated by the processing unit are preferably in the form of a Music Macro Language (MML) sequence or are transmitted in MML or are in the form of a Ring Tone Transfer Language (RTTL) sequence or are transmitted in RTTL.

The input device is preferably provided for a loading flap of a vehicle, in particular an electrically operated vehicle. However, other configurations of the input device are also conceivable, in particular as part of other systems that are different from a vehicle. The control unit includes, for example, a graphic display with touch controls, a touchpad, a keypad, one or more switches, levers or the like. Alternatively or additionally, it is conceivable that the operating unit comprises an operating element which is intended to interact with a user when using the loading flap and/or another device, with the operating element being used, for example, as a connection, as a door of the loading flap, as a a fastening and/or closure element or the like. is trained. It is conceivable that the operating unit comprises a plurality of operating elements that are designed differently from one another. It is preferably conceivable that a sequence of tones, a voice output and/or a melody is generated via the acoustic feedback signal. It is conceivable that the output unit also has at least one optical output element, for example a display, an LED, a signal lamp or the like. includes. In particular, the computing unit is set up to control the output unit, in particular the optical output element, depending on an actuation of the operating unit to output an optical feedback signal. The arithmetic unit is preferably set up to generate sequences of sequential tones, simple and/or monophonic music or noise sequences by means of software programming via control signals at the output unit.

A configuration of the input device according to the invention enables an advantageously high degree of compactness to be made possible. An advantageously small number of different components of the input device can be achieved, in particular since further output elements dedicated to the application of haptic feedback signals, for example vibration motors or the like, can be omitted. As a result, advantageously low production costs can be achieved. An advantageously simple output of haptic feedback signals can be made possible. As a result, haptic feedback can advantageously be output to the user in a simple, variable manner and/or in addition to acoustic feedback, in particular, for example wise to be able to provide sufficient user feedback in environments with high levels of ambient noise. An advantageously high functionality of the input device can be achieved with an essentially unchanged low complexity of the input device. It is conceivable that the input device includes at least one amplification circuit for amplifying the input signal and/or the control signal.

Furthermore, it is proposed that the acoustic output element is provided for the purpose of outputting at least one acoustic feedback signal as a function of activation by the computing unit when the operating unit is actuated. It can advantageously be possible to output acoustic feedback signals and haptic feedback signals via the output element, in particular independently of other output elements. As a result, advantageously low production costs can be achieved. It is conceivable that the output unit, in particular the acoustic output element, is provided to output the haptic feedback signal and the acoustic feedback signal at least essentially simultaneously, in particular by activating the acoustic output element alternately over time with two different activation signals. Alternatively or additionally, it is conceivable that the output unit, in particular the acoustic output element, is provided to only output an acoustic feedback signal or a haptic feedback signal or acoustic signal when the operating unit is actuated. The processing unit is preferably set up to control an output of an acoustic feedback signal and/or a haptic feedback signal or an acoustic signal by the output unit, in particular the at least one acoustic output element, in particular via the control signal. The haptic feedback signal is preferably designed as a vibration of the operating unit, in particular at least one operating element of the operating unit. The acoustic feedback signal can, in particular, be a single tone, a melody or the like. be trained.

In addition, it is proposed that the operating unit comprises at least one operating element, with the acoustic output element being arranged on the operating element, with the acoustic output element being provided for generating the haptic feedback signal on the operating element. An advantageously compact configuration of the input device can be achieved. The acoustic output element is preferably at least partially in contact with the at least one operating element. It is conceivable that the computing unit is set up to select, in particular via the control signal, an operating element of the operating unit for generating the haptic feedback signal from a plurality of operating elements of the operating unit, in particular depending on the input signal. In particular, the acoustic output element is arranged on a plurality of operating elements of the operating unit or the output unit comprises a plurality of acoustic output elements which are each arranged on at least one operating element of the operating unit. It is conceivable that the control unit comprises a plurality of control elements, with the at least one acoustic output element being arranged only on one or more of the control elements of the control unit, with a haptic feedback signal being able to be generated only on the one or more control elements. In particular, it is conceivable that the operating unit comprises at least one operating element for which only an acoustic feedback signal is output/can be generated when the output unit is actuated.

It is also proposed that the input device comprises at least one wireless communication unit, which is provided for transmitting electronic data from an external unit to the computing unit, the computing unit being set up to output at least one output parameter received from the external unit via the communication unit Feedback signal to a control of the output unit to be considered. An advantageously individual and simple adjustment of feedback signals to be output via the output unit, in particular the output element, can be made possible. In particular, the computing unit is set up to generate the control signal for outputting a feedback signal by means of the output unit, in particular the acoustic output element, as a function of the received output parameter. In particular, the communication unit is provided to transmit the output parameter to the computing unit via electronic data. The communication unit is preferably provided for the transmission of electronic data by means of directed or non-directed electromagnetic waves, for example via radio, optical signals or the like. In particular, the communication unit is provided for a Bluetooth, WLAN or NFC connection. It is also conceivable that the communication unit is intended to transmit electronic data via the Internet, with communication being able to be established in particular between the input device and the external unit via an identifier, for example a QR code or the like can be detected via the communication unit. For example, the external entity is configured as a Ser ver, as a network, as a cloud, or as a portable device such as a car key, smartphone, smartwatch, or the like. educated. It is conceivable that the external unit is designed as an identification unit that can be assigned to a user.

It is also proposed that the output parameter is in the form of a signal strength of the haptic feedback signal, the acoustic signal and/or an acoustic feedback signal to be output via the output unit, with the computing unit being set up to control the output unit in such a way that the haptic Feedback signal, the acoustic signal and / or the acoustic feedback signal is output with the received output parameters. An advantageous adjustment of feedback signals to be output via the output unit, in particular the output element, can be made possible. In particular, user-specific requirements for recording the feedback signals can be taken into account when the feedback signals are output. The feedback signals can preferably be output in such a way that the feedback signals can be recognized by a user even under difficult environmental conditions, for example with a high level of ambient noise and/or other strong environmental influences affecting the user. In particular, the signal strength is in the form of an amplitude of an oscillation or wave equation that describes the respective signal/feedback signal.

In addition, it is proposed that the input device comprises at least one recording unit for detecting at least one environmental parameter, with the computing unit being set up to control the output unit in such a way that the haptic feedback signal, the acoustic signal and/or an acoustic feedback signal to be output in Is generated depending on the detected environmental parameters. Advantageously, an environment-related adjustment of the feedback signals can be made possible automatically. In particular, it can advantageously be ensured that the feedback signals can be recognized by a user even under difficult environmental conditions, for example with a high level of ambient noise and/or other strong environmental influences affecting the user. An “environmental parameter” is to be understood in particular as a parameter which indicates at least one physical quantity influencing the recording of a feedback signal to be output by a user. For example, the environmental parameter is embodied as an environmental volume or as a vibration of the operating unit, in particular independently of an actuation by a user. In particular, the recording unit comprises at least one recording element, for example a microphone and/or another recording element for recording the environmental parameter, for example a vibration sensor, in particular a piezoelectric sensor or the like. The recording element is particularly preferably designed as a microphone, in particular a miniature microphone, and provided for detecting an environmental parameter embodied as an environmental volume. The computing unit is preferably set up to control the output unit in such a way that a signal strength of a haptic feedback signal to be output, an acoustic signal to be generated and/or an acoustic feedback signal to be output is adjusted as a function of, preferably proportionally to, the detected environmental parameter. In particular, a volume of feedback signals can be adjusted, in particular automatically, by the recording unit, for example for users with limited hearing ability or in the case of strong ambient noise.

Furthermore, it is proposed that the dispensing unit is designed to be at least essentially watertight and/or moisture-resistant. In particular, an advantageously high flexibility of the input device can be achieved with regard to an arrangement outdoors, in particular independently of weather conditions. An advantageously high longevity of the input device can be achieved. The at least one acoustic output element is preferably designed to be at least essentially waterproof and/or moisture-resistant. The output unit, in particular the acoustic output element, is preferably designed to be at least essentially waterproof and/or moisture-resistant, at least on a surface in contact with the operating unit or on a side facing the operating unit. “Essentially watertight” is to be understood in particular as a structural unit, in particular the output unit and/or the acoustic output element, whereby under normal conditions and/or in the case of an outdoor arrangement, water can penetrate into the structural unit, for example through a seal, seals and /or other structural measures, is prevented. “Essentially moisture-resistant” is to be understood in particular as a structural unit, in particular the output unit and/or the acoustic output element, in which a function of the structural unit, in particular an output of the feedback signals or the acoustic signal, is caused by the ingress of moisture, for example via Splash water, dew and / or humidity, is not significantly affected, with the exception of immersing or dousing the unit with water. preferred wise, the acoustic output element comprises a mylar membrane, wherein in particular the acoustic output element is designed to be at least essentially moisture-resistant. It is conceivable for the output unit to have at least one housing which encloses the acoustic output element and, for example, cables and lines of the output unit and is designed at least to be essentially watertight. It is conceivable that the acoustic output element is arranged on the operating unit, in particular rests against it, in such a way that a connection point between the acoustic output element and the operating unit is at least essentially watertight. The processing unit is preferably designed to be at least essentially watertight.

Furthermore, it is proposed that the processing unit is set up to control the output unit when the operating unit is actuated to output a feedback signal, with the processing unit being set up to output at least one output parameter of the feedback signal to be output as a function of an actuated control element of the operating unit and/or depending on a function of the input device performed by the actuation, in particular when starting and/or stopping the function. Advantageously, individual output of feedback signals can be made possible for confirmation of an actuation of certain operating elements and/or of certain functions of the input device triggered by an actuated operating element. An advantageously high level of operating comfort can be achieved, in particular when using the input device in poor visibility conditions, for example at night, and/or independently of the user's field of vision. The arithmetic unit is preferably set up to set the at least one output parameter via the generated control signal. A large number of control signals and/or output parameters are preferably stored in the processing unit, with the processing unit being set up to output a feedback signal via the output unit at least one control signal to be output and/or at least one output parameter, in particular a value of an output parameter, as a function from a sensed input signal and/or from an actuated control element. In particular, the operating unit is set up to output a specific input signal to the processing unit as a function of an actuated operating element. At least one function of the input device is preferably assigned to each operating element. It is conceivable for a control element of the control unit to be assigned a plurality of functions which are selected in particular as a function of a type of actuation, for example an actuation direction, an actuation force or the like, of the control element. In particular, the operating unit is set up to output a specific input signal to the computing unit as a function of the type of actuation of an operating element when it is actuated by a user. In particular, depending on a configuration of the function of the input device, it is conceivable that the processing unit is set up to control and/or regulate the function by actuating a further functional unit external to the device or embodied as part of the input device, for example when a closure element is unlocked a release of a charging connection or the like., Or that the respective control element itself performs the function, for example when a charging cable or the like is accommodated. by a control element designed as a connection. The function of the input device can also be used in particular as a start of a charging process, as a connection, in particular of the control element, with an external unit, as a release of an opening or a connection or the like. be trained. In particular, at least one input signal is assigned to each function of the input device in the computing unit.

It is also proposed that the arithmetic unit is set up to control the output unit when the operating unit is actuated to output a feedback signal, with the arithmetic unit being set up to output at least one output parameter of the feedback signal to be output as a function of a course of a signal caused by the actuation set function of the input device executed. An advantageously high degree of flexibility can be made possible for a number of different functions of the input device that are to be confirmed with feedback signals. Advantageously high functionality and advantageously high user comfort of the input device can be achieved. The processing unit is preferably set up to monitor and/or determine the course of the function via an input signal from the operating unit and/or via at least one input signal from the functional unit and/or an external unit. The arithmetic unit is preferably set up to control the output unit to output a feedback signal, in particular a haptic feedback signal and/or an acoustic feedback signal, depending on a determined/monitored course of a function of the input device. It is conceivable that at least one pattern history is stored in the processing unit for each function of the input device. In particular, the computing unit is set up to, preferably by comparing a determined/monitored course with a stored pattern course, to evaluate the/a determined/monitored course of a function, in particular at least positively or negatively. Various output parameters or values of an output parameter are preferably stored in the processing unit for individual functions of the input device, which are each assigned to a possible evaluation of a course of the function by the processing unit. In particular, the processing unit is set up to set an output parameter assigned to the respective evaluation of the function or value of the output parameter when the respective feedback signal to be output is output when evaluating a determined course of a function.

In addition, a charging flap with at least one input device according to the invention is proposed.

A configuration of the loading flap according to the invention, in particular due to the configuration of the input device, allows an advantageously high degree of compactness. An advantageously small number of different components of the loading flap can be achieved via the configuration of the input device. As a result, advantageously low production costs can be achieved. An advantageously simple output of haptic and acoustic feedback signals to a user of the loading flap can be made possible. Advantageously, haptic feedback can be output to the user in a simple, variable manner and/or in addition to acoustic feedback, in particular in order to be able to provide sufficient user feedback in environments with a high level of ambient noise, for example.

The invention is also based on a charging system with at least one loading flap, in particular a loading flap according to the invention, with at least one identification unit that can be assigned to a user and with at least one wireless communication unit for transmitting electronic data from the identification unit to an input device of the loading flap.

It is proposed that the identification unit be set up to specify at least one output parameter of at least one feedback signal for outputting the feedback signal by means of the input device via the communication unit when the user uses the loading flap. In particular, the communication unit is designed at least partially as part of the input device. The identification unit is preferably set up to store output parameters or values of one or more output parameters in the computing unit, in particular via the communication unit, to assign output parameters or values of one or more output parameters to various possible input signals of the operating unit and/or to store, in particular assigned, output parameters or Adjust values of one or more output parameters. In particular, the electronic data to be transmitted include at least one output parameter or values of one or more output parameters. For example, the identification unit is a smartphone, a smart watch, a vehicle key, an ID card, a token, a piece of clothing or the like. educated. The identification unit is preferably set up to automatically connect to the input device via the communication unit when approaching the input device, in particular for the transmission of electronic data, preferably at least one output parameter or values of one or more output parameters. In particular, the communication unit is set up to recognize that the identification unit is approaching the input device. Alternatively or additionally, it is conceivable that the identification unit is intended to be used by a user to establish a connection with the input device via the communication unit and/or to transmit electronic data, with the identification unit being applied to the input device, for example, and/or an identifier of the input device is recorded and/or read in by means of the identification unit. It is conceivable that the communication unit is intended to transmit electronic data, in particular an operating state, a currently stored output parameter or value of an output parameter, a determined/monitored course of a function of the input device or the like, from the input device to the identification unit . In particular, it is conceivable that the identification unit is connected to the input device for the transmission of electronic data via the communication unit by means of an NFC connection.

An embodiment of the charging system according to the invention makes it possible to advantageously customize feedback signals to be output when using the charging flap. An advantageously simple and quick adjustment of feedback signals to be output can be achieved, in particular since the feedback signals can be adjusted via the identification unit and in particular does not have to be directly via the loading flap. An advantageously compact and simple configuration of the loading flap can be made possible, in particular since operating elements and/or functions can be adapted from off Giving feedback signals can be omitted from the input device. As a result, advantageously low manufacturing costs of the loading flap can be made possible. Depending on an embodiment of the identification unit and/or the communication unit, feedback signals to be output can advantageously be automatically adapted when the loading flap is used by a user.

The input device according to the invention, the charging flap according to the invention and/or the charging system according to the invention should/should not be limited to the application and embodiment described above. In particular, the input device according to the invention, the loading flap according to the invention and/or the loading system according to the invention can have a number of individual elements, components and units that differs from the number specified here in order to fulfill a function described herein. In addition, in the value ranges specified in this disclosure, values lying within the specified limits should also be considered disclosed and can be used as desired.

character list

Further advantages result from the following description of the drawing. In the drawings an embodiment of the invention is shown. The drawings, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into further meaningful combinations.

• 1: eine schematische Darstellung eines erfindungsgemäßen Ladesystems mit einer erfindungsgemäßen Ladeklappe eines Fahrzeugs, wobei die Ladeklappe eine erfindungsgemäße Eingabevorrichtung aufweist,
• 2: ein Schaltbild der erfindungsgemäßen Eingabevorrichtung mit einem Bedienelement und
• 3: eine schematische Prinzipskizze einer Ausgabe von Feedback-Signalen bei einem Tastendruck an der erfindungsgemäßen Eingabevorrichtung durch einen Benutzer.

Show it:

• 1 : a schematic representation of a charging system according to the invention with a charging flap according to the invention of a vehicle, the charging flap having an input device according to the invention,
• 2 : a circuit diagram of the input device according to the invention with a control element and
• 3 1: a schematic basic sketch of an output of feedback signals when a button is pressed on the input device according to the invention by a user.

Reference List

10

vehicle

12

tailgate

14

input device

16

charging system

18

identification unit

20

communication unit

22

user profile

24

output unit

26

unit of account

28

connection interface

30

closure flap

32

operating unit

34

Acoustic output element

36

control element

38

amplifier circuit

40

transistor

42

operational amplifier

44

recording unit

46

microphone

48

amplifier circuit

50

Course

52

Course

54

input signal

56

control signal

58

control signal

60

feedback signal

62

Acoustic signal

64

abscissa

66

ordinate

68

ordinate

70

capacitor

72

capacitor

74

Resistance

76

Resistance

78

capacitor

80

capacitor

Description of the embodiment

In 1 a vehicle 10 designed as an electrically powered automobile is shown schematically. The vehicle 10 includes a charging flap 12 which is provided in particular for a concealable and preferably lockable connection of a charging cable for charging an energy store of the vehicle 10 . The tailgate 12 includes an input device 14. The tailgate 12 is Part of a charging system 16. The charging system 16 comprises an identification unit 18 that can be assigned to a user and a wireless communication unit 20 for transmitting electronic data from the identification unit 18 to the input device 14 of the loading flap 12. The communication unit 20 is intended to transmit electronic data via radio waves transfer. However, other configurations of the communication unit 20 are also conceivable, for example for the transmission of electronic data via optical signals or the like. In particular, it is conceivable that the communication unit 20 is designed as an NFC interface. The identification unit 18 is embodied as a smartphone assigned to the user, which in particular executes an application assigned to the input device 14 . However, other configurations of the identification unit 18 are also conceivable, for example as a device assigned to the vehicle 10, for example as a vehicle key, as a smart watch, as an ID token or ID card, as a piece of clothing or the like. The identification unit 18 includes a user profile 22 in which a plurality of values for output parameters for an output of a haptic feedback signal and an acoustic feedback signal by means of an output unit 24 of the input device 14 are stored. The communication unit 20 is set up to recognize that the identification unit 18 is approaching the input device 14 . Identification unit 18 is set up to automatically read the stored values of the output parameters via communication unit 20 to output feedback signals when input device 14 approaches input device 14, in particular over a minimal distance, when the user is using loading flap 12 by means of the input device 14, in particular the output unit 24, wherein in particular the stored values of the output parameters are stored in a computing unit 26 of the input device 14. It is conceivable that, for example during commissioning, production and/or by a previous user, values of the output parameters already stored in processing unit 26 are overwritten or replaced by identification unit 18 when specifying the stored values of the output parameters. The arithmetic unit 26 is preferably set up to restore the values of the output parameters already stored in the arithmetic unit 26 or replaced values of the output parameters when the identification unit 18 is removed from the input device 14 . The communication unit 20 is provided for the transmission of electronic data from the device-external identification unit 18 to the computing unit 26, wherein the computing unit 26 is set up to receive the output parameters or values of the output parameters for feedback to be output via the communication unit 20 from the device-external identification unit 18 Signals to control the output unit 24 to be considered. The charging flap 12 comprises an electrical connection interface 28 for connecting a charging cable and a closing flap 30 for covering the electrical connection interface 28.

The input device 14 comprises an operating unit 32 for actuation by a user, the output unit 24 and the computing unit 26 for controlling the output unit 24 depending on an actuation of the operating unit 32. The output unit 24 comprises an acoustic output element 34 (see 2 and 3 ), which is intended to emit at least one acoustic signal. The acoustic output element 34 is designed and/or arranged in such a way that at least one haptic feedback signal is generated on the operating unit 32 by outputting the acoustic signal. The operating unit 32 is embodied as a keypad, which comprises a plurality of operating elements 36 embodied as keys (only one of the operating elements 36 is shown in the figures by way of example). However, other configurations of the control unit 32 are also conceivable, for example with only one control element and/or in a configuration as a connection device for the charging cable, as a touchpad, as a closing flap or the like. The acoustic output element 34 is provided for the purpose of outputting at least one acoustic feedback signal as a function of activation by the computing unit 26 when the operating unit 32 is actuated. The acoustic output element 34 is arranged on the operating elements 36 of the operating unit 32 (see 3 ), wherein the acoustic output element 34 is provided to generate the haptic feedback signal on the operating elements 36. The dispensing unit 24 is designed to be at least essentially moisture-resistant. The acoustic output element 24 is embodied as a loudspeaker with a Mylar membrane, with the output of acoustic signals and acoustic feedback signals via the acoustic output element 34 in particular being hardly affected by moisture within the output unit 24 . Alternatively or additionally, it is conceivable that the output unit 24, in particular the acoustic output element 34, is at least substantially waterproof and/or that the entire output unit 24 is at least substantially moisture-resistant.

In 2 A circuit diagram of the input device 14 is shown. The arithmetic unit 26 is in the form of a microcontroller which is connected to the operating unit 32 and the output unit 24 . It It is conceivable that processing unit 26 is arranged at a distance from operating unit 32 and output unit 24, for example as part of an electronic control system of vehicle 10, or that processing unit 26 is arranged together with operating unit 32 and output unit 24. The output unit 24 includes an amplifier circuit 38 for amplifying an activation signal of the arithmetic unit 26. Alternatively, it is conceivable that the output unit 24 is configured without an amplifier circuit 38, with an output of the arithmetic unit 26 being connected directly to a transistor 40 connected upstream of the acoustic output element 34. The amplifier circuit 38 preferably comprises an operational amplifier 42. In particular, the amplifier circuit 38 is intended to boost the drive signal from 5V up to 12V. The amplifier circuit 38 is preferably provided to increase a signal strength of a feedback signal to be output, in particular the volume of an acoustic feedback signal to be output or a vibration strength of a haptic feedback signal to be output via the acoustic signal. However, other configurations of the amplifier circuit 38 are also conceivable.

The input device 14 includes a recording unit 44 for detecting an environmental parameter in the form of an environmental volume. The recording unit 44 includes a microphone 46 which is designed in particular as an electret microphone. However, other configurations of the receiving unit are also conceivable. The computing unit 26 is set up to control the output unit 24 in such a way that the haptic feedback signal and the acoustic feedback signal to be output are generated as a function of a detected value of the environmental parameter. In particular, the computing unit 26 is set up to set a signal strength of a feedback signal to be output, in particular a vibration strength of the haptic feedback signal and/or a volume of the acoustic feedback signal, proportional to the detected value of the environmental parameter. Alternatively, configurations of the input device 14 without a recording unit 44 are also conceivable. The recording unit 44 includes an amplifier circuit 48 for converting a signal detected by the microphone 46 and made available to the computing unit 26 . Alternatively or additionally, it is conceivable that further output parameters or values of output parameters of a feedback signal to be output, in particular different from a signal strength, are set/changed by means of the computing unit 26 depending on a detected value of the environmental parameter, for example by the acoustic feedback signal another tone or another melody is output and/or only a haptic feedback signal, only an acoustic feedback signal and/or an acoustic feedback signal and a haptic feedback signal via a control by processing unit 26 by means of output unit 24 be issued.

The operating unit 32 is set up to generate an input signal as a function of an actuated operating element 36 of the operating elements 36 of the operating unit 32 and/or an actuation type of an actuated operating element 36 and to transmit it to the computing unit 26 . At least one control signal for controlling the output unit 24 is preferably stored in the arithmetic unit 26 for a selection of or for all possible input signal(s) of the operating unit 32 . When an input signal is transmitted by the operating unit 32 , the arithmetic logic unit 26 is set up to output a control signal assigned to the respective input signal for the purpose of outputting a feedback signal by the output unit 24 .

The input device 14, in particular the computing unit 26, the operating unit 32 and the output unit 24, with which the 2 The circuit shown is intended for operation with an operating voltage of 5 V. In particular, the output unit 24 includes a capacitor 70 which is provided to stabilize a supply voltage at the acoustic output element 34 . The amplifier circuit 38 of the output unit 24 includes a further capacitor 72, which forms a low-pass filter with an electrical resistor 74, through which, in particular, control signals are sent to the acoustic output element 34. Another electrical resistance 76 of the output unit 24 is provided to limit an electrical current at the acoustic output element 34 . The amplifier circuit 48 of the recording unit 44 includes two capacitors 78, 80 for decoupling a DC voltage.

In 3 a basic sketch of an output of feedback signals when a key is pressed on the input device 14 by the user is shown. Two temporally synchronous curves 50, 52 are shown, with an upper curve 50 showing signals, in particular an example of an input signal 54 and control signals 56, 58, of the processing unit 26 and a lower curve 52 showing an acoustic feedback signal 60 and output by the output unit 24 shows an acoustic signal 62 output by the output unit 24 for generating a haptic feedback signal on the operating unit 32. In 3 abscissas 64 shown indicate the time and are for both Ver runs identically trained. In the 3 The ordinates 66, 68 shown each indicate a signal strength. At a point in time t ₀ , an operating element 36 of the operating unit 32 is actuated, in particular pressed, by the user. At a point in time t ₁ , the input signal 54 of the operating unit 32 generated as a function of the operating element 36 is received at the computing unit 26 . The computing unit 26 is set up to control the output unit 24 when the operating unit 32 is actuated to output the haptic feedback signal generated via the acoustic signal 62 and the acoustic feedback signal 60 . The processing unit 26 is set up to set the output parameters of the signals 60, 62 to be output as a function of the actuated control element 36 of the control unit 32 and as a function of a function of the input device 14 to be executed/executed by the actuation of the control element 36, in particular via the Output unit 24 to be transmitted control signals 56, 58. One of the output parameters is designed as a signal strength of the haptic feedback signal generated via the acoustic signal 62. A further output parameter is in the form of a signal strength of the acoustic feedback signal 60 . The computing unit 26 is set up to control the output unit 24 in such a way that the haptic feedback signal generated via the acoustic signal 62 and the acoustic feedback signal 60 are output with the received output parameters, in particular with the respective signal strength.

At time t ₂ , a control signal 56 of control signals 56 , 58 is generated by arithmetic logic unit 26 to output an acoustic feedback signal 60 by output unit 24 and is output to output unit 24 . In particular, the drive signal 56 includes a plurality of square waves. The control signal 56 is preferably provided for the acoustic feedback signal 60 to be output as a key noise. Alternatively, other configurations for control signals 56 or the acoustic feedback signal 60 are also conceivable, for example as a negative or positive acknowledgment signal, in particular using predominantly light or predominantly dark tones, as a voice output, as a melody or the like. In particular, it is conceivable that the acoustic feedback signal 60 and/or the haptic feedback signal are provided to warn the user, for example via an alarm tone or tone sequence and/or via a continuous output. The acoustic feedback signal 60 is output in particular from a point in time t ₃ . In particular, the control signal 56 specifies a volume, a length and the type of acoustic feedback signal 60 to be output as output parameters, which is determined in particular by a design of the individual square-wave oscillations. The acoustic feedback signal 60 is output over a period of time from the time t ₃ to a time t ₄ , which is also specified in particular via the arithmetic unit 26 or the control signal 56 . At a point in time t ₅ , a further activation signal 58 of the activation signals 56, 58 is used by the processing unit 26 to output haptic feedback to be generated via the acoustic signal 62 on the operating unit 32 in response to the actuation of the operating element 36 or as a function of the input signal 54 -Signal generated via the output unit 24 and transmitted to the output unit 24. In particular, further control signal 58 includes a plurality of square-wave oscillations, which are output at a significantly lower frequency than control signal 56, in particular from a value range of 10 Hz to 40 Hz. The further control signal 58 outputs the acoustic signal 62 via the acoustic output element 34, which generates the haptic feedback signal on the operating unit 32, in particular the operating element 36. The acoustic signal 62 is emitted over a period of time from time t ₅ to a time t ₆ . For the acoustic feedback signal 60 is in 3 An amplification by the amplifier circuit 38 of the output unit 24 is shown by way of example, it being possible in particular for the control signal 56 to be raised to an output of the acoustic feedback signal 60 to up to 12 V.

Alternatively, it is conceivable that when operating element 36 of operating unit 32 is actuated, output unit 24 is actuated via processing unit 26 to output only one/the acoustic feedback signal 60 or only one haptic feedback signal. It is conceivable that the computing unit 26 is set up to, depending on a detected value of the environmental parameter, the output unit 24 to output an acoustic feedback signal and a haptic feedback signal, just an acoustic feedback signal or just one to control haptic feedback signal. Alternatively or additionally, it is conceivable that processing unit 26 is set up to set at least one output parameter of a feedback signal to be output as a function of the course of a function of input device 14 that is executed by the actuation, for example when controlling a function of input device 14 via the operating element 36

Claims (11)

Input device with at least one operating unit (32) for actuation by a user, with at least one output unit (24) and with at least one computing unit (26) for controlling the output unit (24) depending on an actuation of the operating unit (32), wherein the output unit (24) comprises at least one acoustic output element (34), which is intended to output at least one acoustic signal (62), characterized in that the acoustic output element (34) is designed and/or arranged in such a way that an output of the acoustic signal (62) at least one haptic feedback signal is generated on the operating unit (32). input device claim 1 , characterized in that the acoustic output element (34) is provided to output at least one acoustic feedback signal (60) as a function of activation by the computing unit (26) when the operating unit (32) is actuated. input device claim 1 or 2 , characterized in that the operating unit (32) comprises at least one operating element (36), the acoustic output element (34) being arranged on the operating element (36), the acoustic output element (34) being provided for the haptic feedback signal to generate on the operating element (36). Input device according to one of the preceding claims, characterized by at least one wireless communication unit (20) which is provided for transmitting electronic data from an external unit to the computing unit (26), the computing unit (26) being set up to transmit at least one via the communication unit (20) to take into account output parameters of a feedback signal to be output, received from the external unit, for controlling the output unit (24). input device claim 4 , characterized in that the output parameter is designed as a signal strength of the haptic feedback signal, the acoustic signal (62) and/or an acoustic feedback signal (60) to be output via the output unit (24), the computing unit (26) for this purpose is set up to control the output unit (24) in such a way that the haptic feedback signal, the acoustic signal (62) and/or the acoustic feedback signal (60) is output with the received output parameter. Input device according to one of the preceding claims, characterized by at least one recording unit (44) for detecting at least one environmental parameter, wherein the computing unit (26) is set up to control the output unit (24) in such a way that the haptic feedback signal, the acoustic signal (62) and/or an acoustic feedback signal (60) to be output is generated as a function of the detected environmental parameter. Input device according to one of the preceding claims, characterized in that the output unit (24) is designed to be at least essentially watertight and/or moisture-resistant. Input device according to one of the preceding claims, characterized in that the arithmetic unit (26) is set up to control the output unit (24) when the operating unit (32) is actuated to output a feedback signal, the arithmetic unit (26) being set up for this setting at least one output parameter of the feedback signal to be output as a function of an actuated control element (36) of the control unit (32) and/or as a function of a function of the input device (14) executed by the actuation. Input device according to one of the preceding claims, characterized in that the arithmetic unit (26) is set up to control the output unit (24) when the operating unit (32) is actuated to output a feedback signal, the arithmetic unit (26) being set up for this to set at least one output parameter of the feedback signal to be output as a function of a course of a function of the input device (14) carried out by the actuation. Loading flap with at least one input device (14) according to one of the preceding claims. Loading system with at least one loading flap (12), in particular claim 10 , having at least one identification unit (18) that can be assigned to a user and having at least one wireless communication unit (20) for transmitting electronic data from the identification unit (18) to an input device (14) of the loading flap (12), characterized in that the identification unit (18) is set up to the input device (14) when using the loading flap (12) by the user via the communication unit (20) at least one output parameter of at least one feedback signal Specify output of the feedback signal by means of the input device (14).

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