Method for operating an electrically driven motor vehicle in a privacy mode during a charging process and a control unit for carrying out the method and a motor vehicle

Abstract

Method for operating an electrically driven motor vehicle (1) in a privacy mode during a charging process, wherein the motor vehicle (1) is operated in the privacy mode with at least one profile for generating at least one ambience for an interior by means of at least one vehicle function (7), for which the at least one profile is assigned in each case the at least one vehicle function (7) which is operated during the privacy mode if the respective profile was selected for this purpose by a user or due to a presetting, wherein a control unit (6) detects the charging process using data from a battery management system (4) and / or a charging system (2, 3) of the motor vehicle (1) and at least one occupant (14) using data from an interior monitoring system (5) of the motor vehicle (1), and the control unit (6) activates the privacy mode with the profile upon detecting the charging process and upon detecting at least one occupant (14) in the motor vehicle (1) or offers it to the occupant (14) for activation via a user interface, characterized in that during the privacy mode, at least one object (11) is detected by means of a vehicle surroundings sensor system (9), and a chassis configuration is set to compensate for a rolling of a vehicle body caused by the at least one object (11) only at the time the object (11) moves past the motor vehicle (1), and a previous chassis configuration is then set again.

Description

The invention relates to a method for operating an electrically drivable motor vehicle in a privacy mode during a charging process, and to a control unit which is configured to carry out the method, and to a motor vehicle.The charging of electric vehicles can take between 15 minutes and several hours (depending on the battery status and battery capacity and charging power of the vehicle and charging station). This results in the question as to what the drivers can do during charging, in particular at and in the vicinity of public charging stations. In some charging stations, the environment is designed such that the drivers can take snacks or make purchases, but in others the offer and possibility of damage outside the vehicle during the charging time is not given. Other drivers, in turn, may wish to use the time during charging to operate (e.g., at the laptop), or to relax, or the like. Currently, there is no way for electric vehicle drivers to retract during charging. For example, they cannot sleep or operate undisturbed in the vehicle without being viewed from the outside.DE 10 2014 204 339 A1 discloses a method for providing a short-sleep function in a motor vehicle, in which a vehicle control unit adjusts vehicle parameters or equipment features in order to promote short-sleep in the motor vehicle. More particularly, the method relates to adjusting an automatically adjustable driver seat, adjusting interior light, adjusting relaxing sounds or pieces of music to create a relaxed atmosphere. Furthermore, the vehicle can be actively ventilated in order to produce a warm, comfortable climate. In addition to automatic vehicle locking, the privacy of the driver is also provided by dimming the vehicle windows using electrochromic window dimming. In addition, no external telephone calls are placed.A method for providing a sleep function for a driver of a motor vehicle is likewise known from DE 10 2015 122 245 A1, in which a driver sleep is promoted by setting parameters of vehicle functions. The setting of parameters of the vehicle function can in this case comprise, for example, a setting of a brightness of the interior lighting, a color tone of the interior lighting or the setting of an opacity of at least one pane of the motor vehicle for interior dimming. Furthermore, noises of the car radio and the output of warning tones are reduced. A change in the seat position and a parameter of a vehicle air conditioning is likewise provided for promoting driver sleep.The disadvantage of the above-mentioned methods is that by creating an ambient in the interior only a rest function is provided and interference from the outside from the immediate surroundings of the motor vehicle is not reduced.WO 2019 / 113 589 A1 discloses a location room in which an ambient can be configured for working or retrieving a user. A disadvantage of the known location room is that the location room is not always available at charging stations, for example, and no active reduction of ambient noise is carried out.It is known from DE 10 2018 005 252 A1 that after a start of an electrical charging process in a motor vehicle, a comfort function is offered for activation. The comfort function can provide, among other things, a short sleep program.From DE 10 2018 205 068 A1 a motor vehicle is known which simulates a continuation of the driving operation after stopping to a person falling in the motor vehicle during a trip by generating corresponding noises and movements, in order thereby to conceal the change resulting from the stopping.The invention is based on the object of converting the interior of the motor vehicle into a residence space during a charging process at a charging station, so that the occupant of the motor vehicle can use the time of the charging process for different activities.The object is achieved by the subject matters of the independent claims. Advantageous refinements of the invention are described by the dependent patent claims, the following description and the figures.The invention provides a method for operating an electrically drivable motor vehicle in a privacy mode during a charging process, wherein the motor vehicle is operated in the privacy mode with at least one profile for generating at least one ambient for an interior by means of at least one vehicle function, for which the at least one vehicle function is respectively assigned to the at least one profile, which is operated during the privacy mode if the respective profile has been selected for this by a user or on the basis of a preset. The method is characterized in that a control unit detects the charging process by means of data from a battery management and / or a charging device of the motor vehicle and at least one occupant by means of data from an interior monitoring system of the motor vehicle, and the control unit activates the privacy mode with the profile upon detection of the charging process and upon detection of at least one occupant located in the motor vehicle or offers it to the occupant via an operator interface for activation.In other words, during the charging process, the motor vehicle can provide the privacy mode on the basis of at least one profile or on the basis of a plurality of profiles. A profile may include, for example, an ambient for "sleep", "relaxation", "reading", or "working". To set the patient provided for this purpose, at least one parameter of the at least one vehicle function can be set. For example, it can be provided that an interior temperature is higher in the "sleep" profile than in the "work" profile and / or a degree of darkening of an electrochromic glazing of the motor vehicle is higher in the "sleep" profile than in the "read" profile. The privacy mode can be activated or offered for activation if the data of the battery management and / or of the charger of the motor vehicle indicate a charging process, for example if a charging current is measured, and / or if data of the interior monitoring of the motor vehicle signal or indicate the presence of at least one occupant in the motor vehicle. For this purpose, the control unit can evaluate data of the battery management or of the charging device or of the interior monitoring, for example by means of a data analysis of signals from a vehicle bus system. For example, the data of the interior monitoring can be provided by a seat occupancy sensor or by an infrared sensor, which can react to heat sources in the interior. If a charging process is present and at least one occupant is detected in the interior of the motor vehicle, the privacy mode can be activated with a selection for a profile or a preset profile or offered to the occupant via an operating interface for activation.This results in the advantage that during the charging process the at least one occupant is given a possibility to retract during the charging and to decide on his own how to use the charging time, such as for example for working or for sleeping. Furthermore, the advantage results that the privacy mode is activated during the charging process only when the privacy mode is actually claimed by the at least one occupant. Thus, when no occupant is located in the motor vehicle, energy can be saved during the charging process. This furthermore results in the advantage that the interior of the motor vehicle can be used as a rest space or as a working space for the time of the charging process.The reduction of the roll of the vehicle body can likewise be carried out actively. Thus, the invention provides that during the privacy mode at least one object is detected by means of a vehicle environment sensor system and only for the time of a movement of the object past the motor vehicle is the chassis configuration set for a compensation of the roll of the vehicle body caused by the at least one object and thereafter the previous chassis configuration set. In other words, the object can be, for example, a truck which generates a pressure wave by air displacement when moving past the motor vehicle. By means of a camera device and / or a radar, a passing truck, for example, can be recognized by the control unit by means of an evaluation of the sensor data and a time of the passing can be determined. From the difference of a current time and the time of the passing of the truck, a chassis configuration for an active roll compensation can be set with a time offset parameter, which indicates until the pressure wave reaches the motor vehicle after the passing of the truck.The invention also includes embodiments which provide additional advantages.One specific embodiment provides that the privacy mode is ended upon termination of the charging process and / or upon detection by the control unit that an occupant is no longer present in the motor vehicle. In other words, when the charging process is ended or when an occupant leaves the motor vehicle during the charging process, the privacy mode can be automatically stopped. This results in the advantage that the privacy mode is only operated when required during the charging process and thus energy can be saved in particular. This also allows the charging process to be accelerated if additional consumers are activated only when required.One embodiment provides that at least one profile for generating the at least one ambient comprises a characteristic of the at least one vehicle function, wherein the characteristic is set by setting at least one parameter value of the vehicle function and, in the case of a plurality of profiles, these differ in at least one parameter value.In other words, the vehicle function can be a vehicle component which is operated during a vehicle standstill, such as, for example, an air conditioning system or an electrochromic glazing of the motor vehicle. The at least one parameter value can in this case comprise one or more manipulated variables for the operation of the vehicle component. A "sleep" profile may include operating a number of vehicle functions for each of which a parameter value, such as setting a degree of dimming of an electrochromic glazing of the motor vehicle, a degree of cabin temperature and / or blower intensity of the air conditioner, or a degree of cabin lighting, may be set. In particular, settings for a plurality of different vehicle functions are provided. Depending on the setting of the at least one parameter value of the respective vehicle function, an ambient according to the set profile can be created in total in the interior of the motor vehicle. The profile can already comprise a preset combination of at least one vehicle function with at least one already preset parameter value or a combination of vehicle function stored by an occupant of the motor vehicle with a respective parameter value set by the user. This results in the advantage that a selection of different profiles for generating an ambulatory can be set or configured by a user.The respective profile may comprise a combination of operating at least one vehicle function, wherein two profiles differ in at least one vehicle function. Thus, one embodiment provides that the at least one vehicle function for generating at least one ambient of the interior comprises one or more of the following functions:closing a locking system of the motor vehicle,dimming a glazing of the motor vehicle by means of at least one electrochromic glass, in particular in a front region of the motor vehicle,an automatic control of an air conditioning system for providing a preset room climate or a room climate preferred according to user data of the detected occupant or according to the selected profile for the interior of the motor vehicle,a massage function in at least one seat of the motor vehicle,spraying at least one fragrance into the interior space.In other words, at least one profile can be provided for an ambient of the interior by means of at least one of the aforementioned vehicle functions or a combination of the aforementioned vehicle functions with in each case at least one set parameter value. For example, a vehicle function parameter value of dimming the glazing of the motor vehicle may have a higher degree of dimming for the "sleep" profile than for the "work" profile. Furthermore, the respective ambient can be supported according to the profile by means of the spraying of a perfume suitable for this into the interior. This results in the advantage that a selection of different profiles for an ambient of the interior can be created by means of a combination of vehicle functions with at least one respective parameter value, so that the occupant himself can decide how to use the charging time.During the charging process, however, ambient noise can interfere with the ambient in the interior. Therefore, one embodiment provides that the at least one vehicle function comprises a lowering of a noise level, in particular a noise of a current rotational speed of a fan of a converter of the charging station or of a tire roadway noise of a foreign vehicle driving past, by means of an active noise cancellation (ANC). In other words, with active noise cancellation, which is also used in earphones, for example, the noise level of ambient noise in the interior can be reduced. For this purpose, the noise level outside and / or in the motor vehicle can be measured by means of a microphone and a counter-sound corresponding thereto can be generated by means of a loudspeaker system in the motor vehicle. The active noise suppression can be directed to an active reduction of the respective tone colors (spectral distribution of the noise power) of a noise of a fan, which cools a converter of the charging station, for example, and runs at at least a predetermined rotational speed for this purpose, and / or of a tire roadway noise of traffic passing by. This results in the advantage that noise due to charging stations or noise on freeways in the interior can be reduced. This furthermore results in the advantage that a disturbance of the ambient in the interior is reduced by the specific noise of the charging station or of the traffic.Furthermore, the ambient in the interior can not only be disturbed by ambient noise. Thus, one embodiment provides that the at least one vehicle function comprises an adaptation of a chassis configuration for a reduction of at least one roll of the vehicle body, in particular an electronic setting of a degree of hardness of at least one vibration damper. In other words, a pressure wave of a motor vehicle driving past, such as a truck, can excite the vehicle body to roll. In this case, a degree of roll can be dependent, for example, on a degree of hardness of a vibration damper of the chassis of the motor vehicle. This can interfere with the ambient of the interior. For example, it may be provided that, when the privacy mode is started, the chassis configuration is set such that a roll of the vehicle body by the pressure wave is reduced. For this purpose, for example, an electrically adjustable vibration damper can be set to a hardness value for a maximum damper hardness for the duration of the privacy mode, so that a roll of the vehicle body as a result of the pressure waves is reduced. After the charging process and / or the privacy mode has ended, the hardness value of the vibration damper can be reset to the hardness value before the privacy mode again.This results in the advantage that the comfort during the privacy mode can be increased and energy can be saved, since the chassis configuration is changed only when the privacy mode is started and when the privacy mode is ended. This also results in the advantage that the occupant in the motor vehicle can be decoupled from the outside world, as in the case of a stationary room.Additionally or alternatively, an acceleration due to the roll of the vehicle body due to the pressure wave of the traffic passing by can be measured by means of at least one acceleration sensor in the chassis and a chassis component can be controlled by the control unit for a compensation of the measured acceleration. This can be done by means of a control circuit of an active roll stabilization for roll compensation as well as during a trip, which is naturally carried out during the privacy mode when the vehicle is stationary.This results in the advantage that by means of an active compensation of a roll of the vehicle body, the occupant of the motor vehicle is decoupled from the outside world, as in the case of a stationary room, and a disturbance from the outside is reduced.Certain vehicle functions may not be operated during travel. Thus, one embodiment provides that activation of at least one vehicle function is permitted only if the privacy mode is active. In other words, for example, a dimming of the vehicle glazing can only be operated during the privacy mode when the vehicle is at standstill. Obscuring the vehicle glazing during travel may be a visual obstruction or a violation of governmental regulations of traffic. Therefore, a certain vehicle function, such as obscuring the vehicle glazing, may only be activated during the privacy mode for which the motor vehicle is stationary. This results in the advantage that proper operation of the at least one vehicle function can be maintained.One embodiment provides a control unit which is configured to carry out the method described above. For this purpose, the control unit can be connected, for example, to a vehicle bus system and, by reading and evaluating signals from the vehicle bus system, can identify a charging process and / or at least one occupant in the motor vehicle and then activate the privacy mode or offer it via an operator interface for activation by a vehicle occupant. This results in the advantage that no additional sensors are required for the control unit.One embodiment provides a motor vehicle which comprises said control unit.The invention also includes the control unit for the motor vehicle. The control unit can have a data processing device or a processor device which is configured to carry out an embodiment of the method according to the invention. For this purpose, the processor device can have at least one microprocessor and / or at least one microcontroller and / or at least one FPGA (field programmable gate array) and / or at least one DSP (digital signal processor). Furthermore, the processor device can have program code which is configured to carry out the embodiment of the method according to the invention when executed by the processor device. The program code can be stored in a data memory of the processor device.The invention also includes developments of the method according to the invention, which have features as have already been described in connection with the developments of the motor vehicle according to the invention. For this reason, the corresponding developments of the method according to the invention are not described again here.The motor vehicle according to the invention is preferably designed as a motor vehicle, in particular as a passenger car or truck, or as a passenger bus or motorcycle.The invention also includes the combinations of the features of the described embodiments.Exemplary embodiments of the invention are described below. The following shows: FIG. 1 shows a schematic illustration of the motor vehicle at a charging station comprising a vehicle occupant, and FIG. 2 is a schematic diagram showing the flow of starting and ending the privacy mode.The exemplary embodiment explained below is a preferred embodiment of the invention. In the exemplary embodiment, the described components of the embodiment each represent individual features of the invention that are to be considered independently of one another and that develop the invention in each case also independently of one another and are therefore also to be considered as part of the invention individually or in a combination other than the combination shown. Furthermore, the described embodiment can also be supplemented by further features of the invention that have already been described.In the figures, identical reference numerals designate functionally identical elements.FIG. 1 shows an electrically driven motor vehicle 1, a charging station 2, a truck as object 11 passing by, the control unit 6 and the occupant 14, The motor vehicle 1 is charged by the charging station 2 via the charging plug 3. The motor vehicle 1 has a control unit 4 for battery management and / or for controlling the charger, as well as an interior monitoring 5. The interior monitoring system 5 can comprise, for example, a seat occupancy sensor or an infrared sensor, which can detect at least one occupant 14 by means of temperature differences in the interior of the motor vehicle 1. The motor vehicle 1 has the control unit 6, which can detect a charging process and / or the presence of an occupant 14 in the interior by means of the data from the control unit 4 and the interior monitoring 5.The control unit 6 is configured to operate a selection of vehicle functions 7 in at least one form in each case, therefore a setting of at least one parameter value of the respective vehicle function. The selection of the respective vehicle functions 7 and the respective form may be grouped in a profile for a privacy mode, such as "sleep", "read", "relaxing" or "working".For example, the profile for the privacy mode, which is intended to support sleeping of the occupant 14, can provide the following vehicle functions 7: closing the closure system of the motor vehicle, dimming an electrochromic glazing of the motor vehicle, such that a brightness penetrating into the interior of the motor vehicle 1 is reduced, automatic regulation of an air conditioning system for providing an interior temperature preferred according to the profile "sleeping", a massage function in the respective seat of the occupant 14, and the spraying in of a sedative perfume. The combination of the respective vehicle functions 7 in their respective form, for example for the "sleeping" profile, can create an ambient in the interior of the motor vehicle 1, which assists a sleeping of the occupant 14. In addition, a "working" profile can also be provided. For the "working" profile, for example, the following vehicle functions 7 can be activated: closing the closure system of the motor vehicle, not dimming the glazing so that sufficient brightness can enter the interior of the motor vehicle 1 for working, automatic regulation of the air conditioning system to a lower interior temperature than in the "sleeping" profile, provision of a massage function which can promote an awake state of the occupant 14, and spraying a keep-awake fragrance into the interior. In addition to the "working" and "sleeping" profiles shown, further profiles can also be carried out by a combination of the at least one vehicle function 7 with its respective parameter values. The occupant 14 can also create his own profile which stores a combination of the vehicle function 7 with the respective parameter values in a memory of the control unit 6.A vehicle function 7 can reduce an external incoming noise 10 by means of an active noise suppression. The active noise suppression can be effected by means of the loudspeaker system 8, which sonicates the interior of the motor vehicle 1 and generates a sound such that a noise 10 penetrating into the motor vehicle 1 from the outside is recorded by the microphone 15, which can be located outside or in the interior of the motor vehicle 1, and a phase-shifted sound corresponding to the noise 10 is generated by the loudspeaker system 8 for damping the noise 10. For this purpose, the active noise suppression can be directed to the respective tone colors of, for example, a fan which is operated at at least one rotational speed for cooling a converter of the charging station 2 and / or a tire roadway noise of the traffic passing by.Furthermore, as a vehicle function 7, it can be provided that a roll of the body of the motor vehicle 1, which can arise as object 11 due to a pressure wave 12 of the passing truck, is reduced. On the one hand, the roll of the body of the motor vehicle 1 can be reduced by adjusting a degree of hardness of the electrically adjustable vibration damper 13. For example, when starting the privacy mode, the degree of rigidity of the vibration damper 13 may be adjusted so that a roll of the body of the motor vehicle 1 by the shock wave 12 during the privacy mode is reduced. For example, a degree of rigidity of the electrically variable vibration damper 13 may be increased to a maximum value or set to a degree of rigidity that is normally used for dynamic cornering such as a sport mode or a dynamic mode of an adaptive running gear during running. This may represent passive roll reduction.Additionally or alternatively, the reducing or compensating for the roll by the pressure wave 12 can be actively carried out during the privacy mode. For this purpose, the passing truck can be detected as object 11 by means of the camera device 9, and a time of the passing of the truck can be determined as object 11 on the motor vehicle 1. Assuming that the shock wave 12 reaches the motor vehicle 1 with a time delay as a function of the speed of the truck as object 11, at the moment of passing plus the time delay of the shock wave 12, which can be taken into account by means of a time offset parameter dependent on a speed and / or direction of the truck as object 11, a degree of rigidity of the vibration damper 13 can be set in such a way that it counteracts a rolling movement of the body of the motor vehicle 1 by the shock wave 12 or compensates the rolling movement.Additionally or alternatively, a roll of the body of the motor vehicle 1 can be compensated for by the pressure wave 12 during the privacy mode by means of an active roll compensation, which normally counteracts the roll of the body during cornering during travel. This can be done by means of a control circuit of an active roll stabilization for roll compensation as well as during a trip, which however takes place when the motor vehicle 1 is at a standstill.After the end of the privacy mode and / or the charging process, the chassis configuration can be set again by the control unit 6 to the previous chassis configuration.FIG. 2 shows a process flow of activating and terminating the privacy mode. In a first step S 1, a charging process and an occupant 14 in the motor vehicle 1 are detected by the control unit 6. This can be effected, for example, by means of a reading out of signals and / or data of a vehicle bus system by the control unit 6. If a charging process and an occupant 14 in the motor vehicle 1 are detected, the control unit 6 can automatically initiate the starting of the privacy mode or offer it to the occupant 14 via an operator interface for activation. At the end of step S1, the occupant 14 selects a profile of the privacy mode or the privacy mode is automatically activated into a preset profile.In step S2, the privacy mode is now operated in the profile. During the privacy mode, at least one vehicle function 7 can be operated, such as, for example, automatic closing of the vehicle doors, dimming of an electrochromic vehicle glazing, active noise suppression, automatic regulation of the air conditioning system, offering a massage function in the vehicle seats and spraying of at least one fragrance according to the set profile of the privacy mode. During the privacy mode, a chassis component can be adapted according to the privacy mode, so that a roll of the vehicle body is reduced or the roll is actively counteracted. Furthermore, the individual parameters of the respective vehicle function 7 can be parameterized by the occupant 14 in accordance with individual preferences of the occupant 14 and stored in a memory of the control unit 6.In step S3, the privacy mode is ended. This can be done by ending the charging process, for example when the battery has been determined by the control unit 4 to reach a charging destination or a charging current of the battery falls below a threshold value. Additionally or alternatively, the privacy mode can be ended by the occupant 14 leaving the motor vehicle 1. The occupant 14 can be detected by the interior monitoring system 5 if, for example, a seat occupancy detects that an occupant 14 is no longer present in the motor vehicle 1. If the interior monitoring system 5 does not report an occupant 14 in the motor vehicle 1 to the control unit 6, the privacy mode can be automatically ended by the control unit 6 after a waiting time has elapsed.Additionally or alternatively, the privacy mode may be terminated by the control unit 6 in a period before reaching the charging destination in order to wake up the occupant 14 to reach the charging destination.Currently, there is no way for electric vehicle drivers to retract during charging. For example, they cannot sleep or operate undisturbed in the vehicle without being viewed from the outside. In order to avoid these disadvantages, a function is proposed which enables a privacy mode for vehicle occupants during the charging process. This function is based on the fact that the vehicle first recognizes that a charging process is active and that at least one occupant is located in the vehicle. The system then offers the occupant or occupants to activate a so-called privacy mode. This mode includes, for example, the following components:automatically closing the vehicle doors,dimming the vehicle glazing (for example via electrochromic glass), so that it is no longer possible to look into the interior of the vehicle from the outside,lowering the noise level from the outside via noise cancellation loudspeakers,the automatic control of the air conditioning system for a pleasant interior climate,offering special massage functions in the vehicle seats in order to relax the occupants and / or to avoid stresses,spraying preselected decent fragrances to create an "at home" feel or otherwise maintain operability for as long as possible,adapting the chassis so that vibrations of the body are reduced by trucks or the like passing by.Which of these components is offered to the vehicle occupant or occupants in detail or in what form during the charging process should be able to be selected or preconfigured by the persons in question. It is possible, for example, to offer different component profiles on the system side or to configure them by the driver (for example, "work", "read", "relaxing", "sleeping"). These profiles should be available to the driver during the charging process.Some of these components may be enabled only during the charging process in order to ensure driving safety (for example no dimming of the glazing or no noise cancellation in stop-and-go traffic or in the case of service lives in the crossing region). When the charging process is ended, the privacy mode for vehicle occupants is likewise ended.The vehicle allows a privacy mode for vehicle occupants during the charging process by the interaction of the above-mentioned components, so that the charging time is not seen as an "Ich-must-me-hired time". Rather, occupants may take advantage of the charge time for relaxation, reading, working, or the like, thereby deciding how much privacy they require and / or desire during the charge process.The core of this idea is: a) detecting the charging process in the vehicle, b) automatically closing the vehicle doors, c) installing smart glass in the front region of the vehicle in conjunction with obscured rear windows and / or in the entire vehicle in order to make it possible to obscure the glazing, d) noise cancellation loudspeakers e) automatic regulation of the air conditioning system f) specific massage function in the vehicle seats, g) spraying fragrances, h) lowering or adapting the chassis in the rest position, i) parameterizability of the individual components by the driver.The example shows a method for operating an electrically driven motor vehicle in a privacy mode during a charging process. The privacy mode is started by a control unit upon detection of a charging process and an occupant in the motor vehicle in the motor vehicle data, wherein different vehicle functions are operated for the privacy mode, which are grouped in a profile of the privacy mode for generating an ambient for the interior of the motor vehicle. The profile activates the respective vehicle function for "working", "relaxing", "reading" or "sleeping" and / or sets at least one parameter value of the respective vehicle function for this. A vehicle function comprises an active noise suppression of ambient noise, in particular a tone color of the fan noise of the charging station or of a tire roadway noise, or a passive or active reduction of roll of the vehicle body due to pressure waves of the traffic passing by. When the charging process is ended and / or when the occupant leaves the motor vehicle, the privacy mode is ended by the control unit.Overall, the example shows how a privacy mode may be provided to vehicle occupants during charging operations.

Claims

Method for operating an electrically drivable motor vehicle (1) in a privacy mode during a charging process, wherein the motor vehicle (1) is operated in the privacy mode with at least one profile for generating at least one ambient for an interior by means of at least one vehicle function (7), for which the at least one vehicle function (7) is respectively assigned to the at least one profile, which is operated during the privacy mode if the respective profile has been selected for this by a user or on the basis of a preset, wherein a control unit (6) is assigned by means of data of a battery management (4) and / or of a charging device (2, A vehicle body suspension system according to the invention is provided for the vehicle body in which the charging process is detected in the vehicle body (1) and at least one occupant (14) is detected by the control unit (6) in response to the detection of the charging process and the detection of at least one occupant (14) located in the vehicle body (1) and the private mode is activated with the profile or is presented to the occupant (14) via an operating interface for activation, characterized in that during the private mode at least one object (11) is detected by means of a vehicle environment sensor system (9) and a chassis configuration for compensating a roll of a vehicle body caused by the at least one object (11) is set only for the time of a movement of the object (11) past the vehicle body (1) and a previous chassis configuration is then set again.Method according to Claim 1, wherein the privacy mode is ended upon termination of the charging process and / or upon detection by the control unit (6) that an occupant (14) is no longer located in the motor vehicle (1).Method according to one of the preceding claims, wherein the at least one profile for generating the at least one ambient comprises a characteristic of the at least one vehicle function (7), wherein the characteristic is set by setting at least one parameter value of the vehicle function (7) and, in the case of a plurality of profiles, these differ in the at least one parameter value.Method according to one of the preceding claims, wherein the at least one vehicle function (7) for generating at least one ambient of the interior comprises one or more of the following functions: - closing a closure system of the motor vehicle (1), - dimming a glazing of the motor vehicle (1) by means of at least one electrochromic glass, in particular in a front region of the motor vehicle (1), - automatic regulation of an air conditioning system for providing a preset room climate for the interior of the motor vehicle (1) or a room climate preferred according to user data of the detected occupant (14) or according to the selected profile, - a massage function in at least one seat of the motor vehicle (1), - spraying in at least one fragrance in the interior.Method according to one of the preceding claims, wherein the at least one vehicle function (7) comprises a reduction of a noise level, in particular a noise (10) of a current rotational speed of a fan of a converter of the charging station (2) or of a tire road noise of a passing foreign vehicle, by means of an active noise suppression.Method according to one of the preceding claims, wherein the at least one vehicle function (7) comprises adapting a chassis configuration for a reduction of at least one roll of the vehicle body, in particular electronically setting a degree of hardness of at least one vibration damper (13).Method according to one of the preceding claims, wherein activation of at least one vehicle function (7) is permitted only if the privacy mode is active.Control unit (6) which is configured to carry out a method according to one of the preceding claims.Motor vehicle comprising a control unit (6) according to claim 8.

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