DE102013220551B4 - Method and device for adapting the body support of a person sitting in a vehicle seat and vehicle comprising a vehicle seat and a device for adapting the body support of a person sitting in the vehicle seat - Google Patents

Abstract

A method for adapting the body support of a person sitting in a vehicle seat, wherein an actuator can adapt the body support via an adaptation of the vehicle seat, wherein an adaptation event (AE), which requires an adaptation of the body support, when driving the vehicle based on data from one or a plurality of environment sensors (U) of the vehicle is predicted and the actuators start the adaptation of the body support before the occurrence of the adaptation event (AE), characterized in that upon prediction of the adaptation event (AE) a first time span (t1) and a second time span (t2) wherein the first period of time (t1) is the period of time which the actuators at least require until an adaptation setting established for the adaptation event (AE) is reached, and wherein the second period of time (t2) is the period of time until the adaptation event (AE) occurs. which is using driving dynamics data of the driving In the case that the second time period (t2) is less than or less than the first time period (t1), the actuator starts the adaptation of the body support.

Description

The invention relates to a method and a device for adapting the body support of a person sitting in a vehicle seat, wherein an actuator, in particular a pneumatic actuator for controlling the filling of one or more airbags in the vehicle seat, can adapt the body support via an adaptation of the vehicle seat.

In vehicles and especially in motor vehicles adaptive vehicle seats are installed to an increasing extent, which can adapt the seat contour of the vehicle seat via an actuator system. Often elastic cushions are used, which are usually filled with air via a pneumatic actuator.

From the prior art it is known to control the seat contour of a vehicle seat by situation-dependent signals, such as steering angle, driving speed, lateral acceleration and the like. For example, if a situation is detected in a vehicle seat with inflatable air cushion, which requires a lateral support of the person in the seat, a cushion is inflated on one side of the seat or the backrest by an associated control member connects a pressure supply or a pressure accumulator with the air cushion , A motor vehicle seat in which inflation of a pad is effected when transverse accelerations occur is in the document DE 35 05 088 C1 described.

From the prior art, it is also known that for the adaptive adjustment of vehicle seats stored data on the current road course are taken into account. Such systems are in the documents EP 1 192 061 B1 and DE 10 2009 051 380 A1 described.

By taking into account data on the course of the road, the adaptation of a vehicle seat can indeed be made anticipatory. However, this requires that the stored data is current, which can not always be guaranteed.

The publication WO 2008/110610 A1 discloses a vehicle seat assembly for a motor vehicle in which an inflatable member inflates in response to a control signal indicative of a collision of the motor vehicle or an approaching collision of the motor vehicle with an object. The control signal can be generated by a pre-crash sensor.

In the document DE 10 2008 001 506 A1 a device for the protection of persons in a vehicle in a dangerous situation is described, which comprises a seat with at least one inflatable and ventable gas cushion. To detect the dangerous situation, an environmental sensor, such as a camera device, can be used.

The publication DE 10 2010 010 475 A1 discloses a method for dynamically fixing a vehicle occupant strapped to a seatbelt in a seat of a vehicle in which the future lateral displacement of the vehicle occupant is estimated. In this case, an integrated in the seat adaptation system for supporting the vehicle occupant can be adjusted if the transverse displacement exceeds a threshold. To estimate the transverse displacement of the road can be determined, for example by means of an environment detection.

In the publication DE 10 2011 107 242 A1 A method for protecting a vehicle occupant in a vehicle seat of a vehicle is described in which at least one protective element is triggered to protect the vehicle occupant. To trigger the protection element, for example, the signals of at least one environment detection unit can be used.

The publication DE 10 2011 084 204 A1 discloses a method for driving safety actuators of a motor vehicle, in which a hazard model of the motor vehicle is determined by means of predictive sensor technology and by means of at least one characteristic value of a pose of a driver of the motor vehicle. The safety actuator is controlled as a function of the hazard model and a resulting from the characteristic controllability of the motor vehicle by the driver. The anticipatory sensor system may include, for example, a radar distance sensor or a camera in the bumper.

The document DE 10 2010 003 315 A1 discloses a method for protecting and holding an occupant in an occupant seat of a vehicle in an accident with the aid of at least one holding means of a protective and holding device. Depending on a determined current driving situation is while generating a positioning pulse for the holding means. The current driving situation can be detected, for example, by means of an environment sensor.

In the document DE 10 2005 023 693 A1 a device for controlling at least one vehicle component for the protection of a vehicle occupant as a function of a danger of the vehicle characterizing signal is described. The controlled vehicle component counteracts a lateral movement of the vehicle occupant. The signal, which indicates a danger to the vehicle, can be generated as a function of vehicle dynamics data and / or environmental data.

In the publication DE 10 2004 062 497 A1 A method for reducing the risk of a collision on a rear of a first vehicle by a subsequent second vehicle is described. In the case of an impending impact of the second vehicle on the rear of the first vehicle can be transmitted from the first vehicle from an audible or visual warning to the subsequent second vehicle. Alternatively or additionally, actions can be triggered in the first vehicle. For example, in a driving dynamic seat, the seat upholstery can be changed.

The object of the invention is to provide a method for adapting the body support of a person sitting in a vehicle seat, with a simple and accurate anticipatory adjustment of the body support is achieved.

This object is achieved by the method according to claim 1 and the device according to claim 13. Further developments of the invention are defined in the dependent claims.

The method according to the invention serves to adapt the body support of a person sitting in a vehicle seat. The vehicle seat is preferably the seat of a motor vehicle, such as e.g. a car or truck. To adapt the body support an actuator is used, which adjusts the driver's seat. Preferably, this actuator is a pneumatic actuator for controlling the filling of one or more air cushion in the vehicle seat. The pneumatic actuator system comprises a pressure supply, e.g. in the form of a pump, and a corresponding actuator via which the filling or venting of the air cushion is controlled.

According to the method of the invention, an adaptation event requiring adaptation of the body support is predicated on the ride of the vehicle in which the driver's seat is based on data from one or more environmental sensors of the vehicle and the actuator starts adaptation prior to the occurrence of the adaptation event the body support.

The term environmental sensors includes any kind of sensor technology with which objects or predetermined situations can be detected in the area around the vehicle, in particular by means of electromagnetic waves or sound waves. One or more cameras, in particular at least one stereo camera, and / or one or more radar sensors and / or one or more lidar sensors and / or one or more ultrasound sensors are preferably used as environmental sensors. These types of environmental sensors are well known in the art and therefore will not be described further.

The evaluation of data from environmental sensors for the detection of objects or events, such. The road ahead of the vehicle is known per se and is used according to the invention for the detection of adaptation events. It proves to be advantageous that the environment sensor always determines the current conditions around the vehicle, so that very accurately a corresponding adaptation event can be detected on the data of this sensor. By virtue of the fact that the actuator system begins the corresponding adaptation of the body support before the occurrence of the adaptation event, it is further ensured that the necessary body support is present when the event occurs. As a result, e.g. inflatable air cushions can also be used with lower power and no pressure reservoirs, saving space and reducing noise and cost.

In the method according to the invention, a first time span and a second time span are determined on prediction of the adaptation event. The first time span is the time span which the actuators at least require until an adaptation setting defined for the adaptation event is reached. In contrast, the second time period is the time until the occurrence of the adaptation event, which is determined using vehicle dynamics data, in particular the current speed and acceleration of the vehicle and its spatial distance from the predicted adaptation event. If the second time period is smaller or smaller than the first time span, the actuators start the adaptation of the body support, preferably with maximum adaptation speed. In this way, the actuation of the actuators is carried out at a late time before the adaptation event. As a result, a disturbance of the person in the vehicle seat is avoided by premature triggering of the actuators.

In the case of pneumatic actuators, the first period of time is preferably the period of time until a filling level (i.e., filling amount) of at least one airbag of the vehicle seat at maximum filling speed is reached, determined for the adaptation event. The degree of filling in this variant represents an adaptation setting, whereas the maximum filling speed corresponds to the maximum adaptation speed.

In a particularly preferred embodiment, data from one or more sources outside the vehicle, in particular data which is transmitted via vehicle-to-vehicle communication and / or via vehicle-to-vehicle communication, may also be used for the prediction of the adaptation event in addition to the data of the environmental sensor (s). Infrastructure communications are transmitted to the vehicle of other vehicles or infrastructure elements. This can improve the accuracy of the prediction. For example, for an adaptation event of a curve traversed in the near future, it is possible to use information from preceding vehicles which have already traveled or are currently driving through the curve.

In a particularly preferred embodiment, the adaptation event is a lateral acceleration event which occurs when, based on the data of the environmental sensor (s), a lateral acceleration measure of the vehicle is predicted which exceeds a first threshold value. The lateral acceleration measure is a measure of the magnitude of the lateral acceleration and can in particular represent the lateral acceleration itself. An acceleration event is in particular the already mentioned passage through a curve. About the environment sensors can be determined with known evaluation algorithms, the curve or the waveform.

In a further embodiment, upon prediction of a lateral acceleration event in the case of a pneumatic actuator as an adaptation, the filling of at least one air cushion is carried out, with which a body support against the transverse acceleration of the lateral acceleration event is achieved. When cornering, this is usually the outside air cushion in the seat back.

In a further embodiment of the method according to the invention, the prediction of a lateral acceleration event is repeated cyclically, the adaptation being ended only in the event that the lateral acceleration measure is smaller or smaller than a second threshold value when the adaptation has already started. The second threshold value is smaller than the first threshold value defined above. In this way, it is ensured that with slight variations of the lateral acceleration, an already started adaptation is not terminated immediately.

In a further variant of the method according to the invention, after the adaptation has been started, the first and the second time period are newly determined at predetermined times, wherein in the case that the second time period is no longer smaller or smaller than the first time span, the adaptation speed and in particular the filling speed in Adjusted case of pneumatic actuators, if the second period of time is less than or equal to a threshold value, which is greater than the newly determined first time period. In this case, the adaptation speed and in particular the filling speed are preferably adapted in such a way that the adaptation setting defined for the adaptation event, in particular the degree of filling of at least one air cushion, is achieved at the occurrence of the adaptation event. In this way, it is ensured that in changing conditions which influence the first or second time period (for example acceleration or deceleration of the vehicle), the adaptation speed is changed such that the desired adaptation setting is assumed by the vehicle seat at the exact time of the adaptation event.

In a further variant of the method according to the invention, the time of the start of the adaptation and / or one or more parameters of the adaptation and / or prediction are determined based on vehicle data determined during driving operation of the vehicle. For example, it can be determined via the vehicle data how sporty the driving style of the driver is, wherein in a sportier driving style, the adaptation is started earlier or more intense, which is achieved for example by a higher degree of filling an air cushion to the occurrence of the adaptation event.

In a further variant of the method according to the invention, further predetermined dangerous situations are detected with the environmental sensor (s), wherein upon detection of a dangerous situation the driver's seat is adapted for haptic signaling and / or for increasing body support.

In addition to the method described above, the invention further relates to a device for adapting the body support of a person sitting in a vehicle seat, wherein an actuator, in particular a pneumatic actuator for controlling the filling of one or more airbags in the vehicle seat, the body support adapt via an adjustment of the driver's seat , The device comprises a control device which is designed such that, during operation, it predicts an adaptation event which requires an adaptation of the body support when driving the vehicle based on data from one or more environment sensors of the vehicle and instructs the actuators, before the entry of the vehicle Adaptation event to start an adaptation of the body support.

The device according to the invention is set up for carrying out the method according to the invention and preferably for carrying out one or more preferred variants of the method according to the invention.

The invention further relates to a vehicle, in particular a motor vehicle, which comprises a driver's seat and the device according to the invention described above, in order to adapt the body support of a person sitting in the vehicle seat.

Embodiments of the invention are described below with reference to the attached 1 described in detail. This figure is a flow chart which illustrates the sequence of an embodiment of the method according to the invention.

The method according to the invention will be described below with reference to a pneumatically fillable vehicle seat in a motor vehicle, wherein the required compressed air for filling corresponding air cushions in the seat is generated by a pump. By means of a known valve arrangement, the filling or emptying of the individual air cushions can be controlled.

The procedure of 1 is implemented in a control unit of the motor vehicle. The method starts with step S1, wherein this start is cyclically repeated at predetermined time intervals to thereby continuously check the presence of future adaptation events. In step S2 are the data of the environment sensors U of the vehicle. Depending on the variant of the vehicle, the surroundings sensor system may comprise one or more cameras (in particular stereo cameras), radar sensors, lidar sensors or ultrasound sensors. From at least one of these sensors or, if appropriate, a combination thereof, a future expected lateral acceleration then becomes in step S3 QB determined. In other words, it is determined with the environmental sensor system whether there are circumstances in the surroundings of the vehicle which lead to lateral accelerations as the vehicle continues to travel. The following implementations for determining the lateral acceleration are possible, although other implementations are also conceivable:

By evaluating the camera images, the next curve in relation to the current vehicle position is determined via the environment sensor system and in particular a camera. In addition to the distance of the vehicle to the next curve, the geometry of the curve (for example the curve radius, the curvature and the length) can be determined. From this, an anticipated lateral acceleration can be determined taking into account the current driving speed and the current acceleration of the vehicle. In other words, the next approaching curve can be classified based on its geometry, and the expected lateral acceleration when driving through the curve can be determined via a predicted vehicle speed when entering the curve. Optionally, information about other events ahead may also be obtained and processed, e.g. Branches, junctions, roundabouts, construction site passage, recognition of traffic signs or road markings. In this connection, it is also possible to evaluate the operation of a turn signal of the vehicle, which indicates that the driver is e.g. intends to drive on an approaching branch. If several branches are determined by the surroundings sensor system, it can be determined via this which branch the driver takes and which lateral acceleration accordingly occurs. In addition, information may also be processed over more than just the next preceding event.

After in step S3, the expected lateral acceleration QB has been determined, it is determined in step S4, whether this lateral acceleration is to lead to an adaptation of the driver's seat by changing the filling of his air cushion. Concretely, in step S4, it is determined whether the expected lateral acceleration QB greater than a high threshold TH is. If so, the expected lateral acceleration becomes an adaptation event AE classified. This ensures that an adaptation of the vehicle seat is made only at higher lateral accelerations. Thus, a constant adaptation of the vehicle seat is avoided, which can be perceived as disturbing by the person in the vehicle seat.

If an adaptation event is present in step S4 (branch "yes"), the required final filling state of the air cushion to be filled is determined in a manner known per se in step S5. The air cushion to be filled is the cushion, which causes a body support against the lateral acceleration, in the case of a curve so the outside air cushion. For determining the final filling state in step S5, use is made of predetermined characteristic maps or tables which indicate the final filling state as a function of the lateral acceleration. The greater the lateral acceleration, the greater the filling of the corresponding air cushion, since in this case a larger body support is needed.

In the following step S6, the actual filling state of the air cushion to be filled is determined. Subsequently, in step S7, the expected or remaining minimum filling time t1 determined the air cushion. The minimum filling time is the filling time at maximum intensity (ie at maximum pump power) of the pump. When determining the minimum filling time, system parameters such as the pad volume, characteristic curve of the pressure supply, flow resistance, forces on the air cushion, current filling state or pressure of the pad, dead times during activation of the system and the like flow in a suitable manner. Typically, the expected minimum filling time is in the range between 2 s and 10 s.

In step S8, the remaining time becomes t2 determined until the occurrence of the lateral acceleration event. This time can be determined from the kinematic equations of the vehicle. It should be noted that from the data of the environmental sensor and the spatial distance s of the event (eg the distance to the nearest curve) is known. Furthermore, the speed v and the acceleration a of the vehicle are known from the corresponding vehicle sensor system. The following relationship applies: $$\begin{array}{cccc}\text{s}& =\text{v}\cdot \text{<figure-callout id="2" label="t" filenames="DE102013220551B4\_0004.png" state="{{state}}">t</figure-callout>}2& +& \raisebox{1ex}{$1$}\!\left/ \!\raisebox{-1ex}{$2$}\right.\cdot \text{a}<figure-callout\; id="2"\; label="\cdot \; t"\; filenames="DE102013220551B4\_0004.png"\; state="\{\{state\}\}">\cdot \; </figure-callout>\text{t}2\end{array}$$

$$\begin{array}{cccc}\text{t2}& =\left(\sqrt{{\text{v}}^2+2\cdot \text{a}\cdot \text{s}}-\text{v}\right)/\text{a}& & \text{für a}\ne \text{0}\end{array}$$

By solving this equation for t2, the time until the occurrence of the event thus results as follows: $$\begin{array}{cccc}\text{t2}& =\text{s}/\text{v}& & \text{For}\end{array}\text{a}=\text{0}$$

$$\begin{array}{cccc}\text{t2}& =\left(\sqrt{{\text{<figure-callout id="2" label="v" filenames="DE102013220551B4\_0004.png" state="{{state}}">v</figure-callout>}}^2+2\cdot \text{a}\cdot \text{s}}-\text{v}\right)/\text{a}& & \text{for a}\ne \text{0}\end{array}$$

Finally, in step S9, it is determined whether the time t2 (ie the time until the occurrence of the event) less than or equal to the minimum filling time t1 is. If this is the case (branch "Yes"), the maximum intensity pump is turned on in step S10 and the current cycle of the motor vehicle is ended in step S11. In the embodiment described here, the filling is started before the occurrence of the event at the latest possible time. As a result, the disturbance of the seated person is kept as low as possible, but at the same time it is ensured that the necessary adaptation of the vehicle seat is set without time delay at the occurrence of the corresponding event.

According to 1 the process is repeated cyclically, with the expected lateral acceleration in each cycle QB is predicted and determined according to step S4, whether the lateral acceleration QB greater than the high threshold TH is. If this is not the case (branch "No" from step S4), it is checked in step S12 whether the expected lateral acceleration QB greater than a low threshold TL is. This threshold is lower than the threshold TH , If this is the case (branch "yes"), it is checked in step S13 whether the pump is already active, ie whether a filling of the air cushion has already been started. If this is the case (branch "yes"), the following steps S5 to S9 are again carried out in order to check whether changes occur during the filling with regard to the filling time or the occurrence of the filling time Have resulted in adaptation event. Such changes may occur, for example, when the speed or acceleration of the vehicle has changed significantly and thereby the time t2 gets longer.

If t2 ≦ t1 still holds in step S9, the pump remains active. In contrast, is the time t2 now longer than the filling time t1 (step "No" from step S9), it is checked in step S14 whether the pump is active. If this is the case (branch "Yes"), it is checked in step S15 whether the time t2 has become significantly larger, ie whether the time t2 greater than a time threshold T is, wherein this time threshold is greater than the minimum filling time t1 is, for example, twice as big. Likewise, the time can be T the maximum filling time with minimum pump power correspond. If this is not the case (step "No" from step S15), the intensity of the pump is suitably adapted to take into account that the lateral acceleration event occurs later. The intensity is adjusted such that at the time of the lateral acceleration event just the required filling level or filling state of the air bag is reached. With a strong increase in time t2 is the lateral acceleration event still very far in the future, so that a filling at the current time makes no sense. In this case (branch "Yes" from S15), the pump is turned off (step S17 ).

As part of the above check according to steps S12 and S13, it is ensured that with small changes in the lateral acceleration of the vehicle, a pump is not switched off immediately. However, should the lateral acceleration decrease significantly (branch "No" from step S12), a filling of the corresponding air cushion is no longer necessary, so that the pump in step S17 is switched off. In addition, if it is determined in step S13 that the pump is not yet active, it also goes to step S17 In this case, this means that the pump remains in the switched-off state. Similarly, in the case where it is determined in step S14 that the pump is off (branch "No"), it goes to step S17, which in this case means that the pump remains in the off state.

As described above, when the filling has already started, it is cyclically checked whether changes have occurred in the time span until the event or during the filling time. If, for example, the vehicle has been decelerated before reaching a curve, the intensity of the pump and thus the speed of the filling can be reduced to such an extent that the filling time of the cushion is extended until the curve is reached. In the same way, in the event that compared to the last review, an acceleration before reaching the curve has occurred, the intensity of the pump or the speed of filling can also be increased so far that the filling is completed accordingly early.

The embodiment of the method according to the invention just described may include various variants. In particular, the sensitivity of the method by varying the above threshold TH be adjusted. Likewise, the required degree of filling of a pad can be varied when an adaptation event occurs. For example, a fast or more sensitive response to lateral acceleration or inflation of the air bag may be adjusted when a driver's sporty driving style is detected via electronic stability control states, the selected landing gear mode, or the recognized driving style. On the other hand, a slow or less sensitive response or a lower filling of the air cushion can be set if a comfort-oriented driving style is recognized via the states of the electronic stability control, the set chassis mode and the recognized driving style.

In a further modification, the combination of environment sensor system and adaptive seat adjustment can also be used for warning functions by making certain seat adjustments in the case of detected dangerous situations which haptically transmit a warning to the driver of a vehicle. For example, a one-sided support can be generated in case of imminent accidental departure from the lane. In contrast, a narrowing of the seat on both sides can be effected when the critical driving situation or narrow passage or construction site passage or speeding is detected.

The combination of environment sensor and adaptive seat adjustment can also be used for safety functions in the vehicle by certain seat adjustments are made in detected dangerous situations that ensure a safe position of the occupants. In particular, an improved lateral support may be adjusted in the event of a likely evasive maneuver or imminent collision through the seat.

In addition, if necessary, information about preceding curves or other relevant events may be taken into account, which in the context of a vehicle-to-vehicle communication (also referred to as Car2Car) or a vehicle-to-infrastructure communication (also referred to as Car2X) to the Vehicle be transferred from other vehicles or infrastructure elements. In particular, information about lateral acceleration-relevant events can be received on the route to be expected. This also includes the transmission of vehicle dynamics data from preceding or oncoming vehicles, e.g. over the actually effective lateral acceleration in a preceding curve. This provides more accurate information for predictive control of body support.

The embodiments of the invention described above have a number of advantages. In particular, an adaptation of a vehicle seat and, in particular, the filling process of an air cushion is prematurely started before an adaptation event by evaluating data of the integrated environment sensor in the vehicle, so that the required filling is present in time for the adaptation event. In this way, a sufficient filling of air cushion can be achieved even with low-performance compressors or pumps and without additional pressure accumulator. This in turn leads to significantly reduced costs with lower energy consumption and lower system weight. The inclusion of environmental sensor information also eliminates the need to update stored road data as environmental sensors capture the current road conditions. In addition, in preferred variants, the adaptive seat adjustment can also be used for warning purposes, thereby reducing the flood of information assistance systems.

LIST OF REFERENCE NUMBERS

S1, S2, ..., S17

steps

U

environment sensors

QB

lateral acceleration

AE

adaptation event

TH, TL, T

thresholds

t1

expected minimum filling time of an air cushion

t2

Time until the occurrence of the lateral acceleration event

Claims (14)

A method for adapting the body support of a person sitting in a vehicle seat, wherein an actuator can adapt the body support via an adaptation of the vehicle seat, wherein an adaptation event (AE), which requires an adaptation of the body support, when driving the vehicle based on data from one or a plurality of environmental sensors (U) of the vehicle is predicted and the actuators start the adaptation of the body support before the occurrence of the adaptation event (AE), characterized in that, when the adaptation event (AE) is predicted, a first time span (t1) and a second time span (t2) wherein the first period of time (t1) is the period of time which the actuators at least require until an adaptation setting established for the adaptation event (AE) is reached, and wherein the second period of time (t2) is the period of time until the adaptation event (AE) occurs. which is using F driving dynamics data of F In the event that the second period of time (t2) is less than or less than the first time period (t1), the actuator starts the adaptation of the body support. Method according to Claim 1 , characterized in that the one or more environmental sensors (U) comprise one or more cameras and / or one or more ultrasonic sensors. Method according to Claim 1 or 2 , characterized in that for the prediction of the adaptation event (AE) in addition to the data of the environmental sensor (s) or data from one or more sources outside the vehicle are taken into account. Method according to one of the preceding claims, characterized in that the adaptation event (AE) is a lateral acceleration event, which is present when based on the data of the environmental sensors or (U) a lateral acceleration measure (QB) of the vehicle is predicted, which a first threshold (TH) exceeds. Method according to Claim 4 , characterized in that the actuator is a pneumatic actuator for controlling the filling of one or more airbags in the vehicle seat, which in prediction of a Transverse acceleration event as an adaptation starts the filling of at least one air cushion, with which a body support against the lateral acceleration of the lateral acceleration event is achieved. Method according to one of the preceding claims, characterized in that the driving dynamics data include the current speed and acceleration of the vehicle. Method according to one of the preceding claims, characterized in that the actuator is a pneumatic actuator for controlling the filling of one or more air cushion in the vehicle seat and the first period of time until reaching a for the adaptation event (AE) fixed filling level of at least one air cushion of the vehicle seat at maximum filling speed. Method according to one of the preceding claims in combination with Claim 4 Characterized in that the prediction of a transverse acceleration event is repeated cyclically, only in the case that has already started adaptation the Querbeschleunigungsmaß (QB) is less than or smaller equal to a second threshold (TL), the adaptation is completed, wherein the second threshold ( TL) is less than the first threshold (TH). Method according to one of the preceding claims, characterized in that after the start of the adaptation, the first and the second time period (t1, t2) are re-determined at predetermined times, wherein in the case that the second time period (t2) is not less or less equal the first time interval (t1), the adaptation speed is adjusted as long as the second time period (t2) is less than or equal to a threshold value (T) which is greater than the newly determined first time period (t1). Method according to Claim 9 , characterized in that the adaptation speed is adjusted in such a way that, for the occurrence of the adaptation event, the adaptation setting defined for the adaptation event (AE) is achieved. Method according to one of the preceding claims, characterized in that the time of the start of the adaptation and / or one or more parameters of the adaptation and / or prediction are determined based on vehicle data determined during driving operation of the vehicle. Method according to one of the preceding claims, characterized in that with the one or more environmental sensors (U) further predetermined dangerous situations are detected, wherein upon detection of a dangerous situation, the driver's seat for haptic hinting and / or to increase the body support is adapted. Device for adapting the body support of a person sitting in a vehicle seat, wherein an actuator can adapt the body support via an adjustment of the vehicle seat, wherein the device comprises a control device which is designed such that it has an adaptation event (AE) during operation, which is an adaptation the body support requires, when driving the vehicle based on data predicted by one or more environment sensors (U) of the vehicle and instructs the actuators to start before the occurrence of the adaptation event (AE) an adaptation of the body support, characterized in that the control device further is configured in such a way that it determines a first period of time (t1) and a second period of time (t2) upon prediction of the adaptation event (AE), wherein the first period of time (t1) is the period of time which the actuators reach until reaching the adaptation event (AE). AE) at least s, and wherein the second time period (t2) is the time until the occurrence of the adaptation event (AE), which is determined using vehicle dynamics data, wherein in the case that the second time period (t2) is less than or equal to the first time period (t1), the control device instructs the actuators to start the adaptation of the body support. A vehicle comprising a vehicle seat and a device Claim 13 for adapting the body support of a person sitting in the vehicle seat.

Images