DE10316732A1 - Climatic condition setting method for motor vehicle seats, especially the air flow over and temperature of seats, whereby a heated air flow is set and regulated using heaters, fans and Peltier temperature regulating elements - Google Patents

Abstract

Method for control and regulation of an arrangement for adjusting the climatic settings of a vehicle seat (10) that comprises heating elements (12, 14) and fans (28, 30) for generating a heated gas flow over the seat surfaces at a set surface temperature (TSollS, TSollR). An independent claim is made for a device for controlling the climatic settings of a vehicle seta that has Peltier elements (28A, 28B, 30A, 30B) for controlling the temperature of heating elements.

Description

The Invention relates to a method and an apparatus according to the General term of the claims 1 and 16 mentioned features.

From the prior art, in particular the publication DE 199 53 385 A1 , A method for controlling a device for air conditioning a vehicle seat is known. The air conditioning device comprises at least one heating device for heating the vehicle seat and at least one ventilation device for ventilation of the vehicle seat. The device is supplemented by a device for controlling and regulating the air conditioning of a vehicle seat, which has at least one heating device for heating the vehicle seat and at least one ventilation device for ventilation of the vehicle seat. The control device itself generates control signals for controlling the heating device and the ventilation device.

This Devices for air conditioning a vehicle seat and the associated Methods are generally known and have been developed with the proviso the feeling of well-being by motor vehicle users in closed as well as in open To make vehicles pleasant. Another requirement of the Development is to create a seat heater for the purpose the warm-up and heating time of the otherwise sluggish, well-known automotive interior heating system by the Bridge heating of the seats. The aerator can be set manually by the user within defined limits. The device used in practice for air conditioning a vehicle seat with its seat heating device and its ventilation device is adjustable so that it ensures that it is done manually by the user ventilation device switched on not hypothermia of the user comes by with the ventilation device switched on the seat heating device for heating the vehicle seat automatically dependent on from a desired one Seat surface temperature to an associated, adjustable temperature setpoint is regulated. The regulation of Seat heating device for heating the vehicle seat is carried out automatically. For example, ventilation turns normal vehicle air (around 20 ° C) a fan the ventilation device transported to the seat surface. The preset target temperature on the seat potentiometer through the seat heating, the transported air to the set Temperature level heated.

Generally the disadvantage is that at an intake air temperature that is above the setpoint temperature, the ventilation device is switched off is or must be switched off since at this time no cooling effect and is even more likely to cause the seat to heat up. The currently in Seat ventilation systems in operation work dependent of the interior temperature in a closed motor vehicle or depending on the outside temperature determining the inside temperature in open motor vehicles (Convertible). At high temperatures in the vehicle interior above the setpoint temperature is the ventilation device ineffective and is only dependent Operated by an air conditioning system of the motor vehicle, the temperature in the vehicle interior below the target temperature, so the ventilation device takes effect.

adversely is also that when positioning the fan of the ventilation device care must be taken to ensure that the fan is not in an unfavorable position heated body parts, such as the exhaust system is arranged below a motor vehicle seat. This constructive The arrangement has a negative influence on the ventilation device or make them for the ventilation with a lower target temperature than that in the motor vehicle interior already existing temperature unusable because of the sucked in air is already strongly preheated. The degrees of freedom of the constructive Arrangement are severely restricted. Furthermore, heat up Motor vehicles inside the motor vehicle particularly strongly, which in warm climates are used, which gives the same effect arises and the temperatures are already above the set temperature lie.

So So far it applies according to the state of the art that open vehicles, which the interior temperature is above the target temperature and therefore mostly above the desired one Temperature setpoint of the surface for the Motor vehicle seat is - in particular in hot Countries - not with a ventilation system are operable if not previously by air conditioning or the like the interior temperature at least to a desired seat surface temperature is turned down.

Appropriately, the prior art offers cooling devices for motor vehicle seats, which are based on the published patent application DE 196 04 477 A1 and the patent specification DE 195 03 291 C2 are known. The publication DE 196 04 477 A1 discloses a cooling device with which vehicle seats, preferably heated by solar radiation, are provided. This publication shows that the vehicle seats are provided with means arranged in an arrangement inside the seat, which have a conduit system through which a liquid deviating from the temperature of the seat can be conducted. This seat cooling device should work by means of the Peltier effect and optionally cool or heat the seat.

The publication DE 195 03 291 C2 describes a heating / cooling mat for a vehicle seat, which is arranged on an essentially flexible cover surface of the vehicle seat which forms during operation on or at least close to the body contact surface. The air conditioning mat has a plurality of Peltier elements for cooling, which are distributed along the mat and can be fed from an on-board electrical system voltage source of the vehicle. This solution corresponds to a type of direct cooling, since a cooling fluid transport means is not used. It is only necessary to remove the heat from the heating semiconductor body.

In publications known from the prior art, the DE 196 04 477 A1 and DE 195 03 291 C2 , due to their design by means of cooling a liquid circuit or implementing cooling using heating mats, disadvantageously cannot be integrated into existing ventilation concepts which work by means of air flowing through the motor vehicle seat to air-condition the seats.

A ventilation device operated with air is out of the DE 199 37 464 A1 known. This ventilation device is assigned to an upholstery, one or more fans drawing in outside air and serving directly or indirectly via a cooling unit for ventilation or air conditioning of the upholstery. This ventilation concept is a combination of a Peltier element and a fan. The Peltier element regulates the temperature of the seat with simultaneous ventilation, whereby the regulated temperature air is transported to the upholstery surface by the fan in both heating and ventilation mode.

adversely here is that the solution shown only through the ventilation device, which is a cooling unit and comprises a fan, heated or cooled is ventilated. Moreover is the ventilation device in their mode of operation when heating and cooling the motor vehicle seat very much sluggish. Also needed the cooling unit a big one behind the fan Installation space within the vehicle seat.

There this unit especially in the backrest part is arranged, disadvantageously requires a large amount of space be provided in the motor vehicle seat, as much legroom as possible the rear passengers or in the case of motor vehicle fund seats great usable volume in the trunk of the motor vehicle is desired.

The The invention is therefore based on the object of a method and a device for air conditioning - ventilation and heating or cooling - in particular to create an upholstered motor vehicle seat, which at all occurring motor vehicle interior temperatures is functional as well as quickly and effectively a desired temperature-controlled ventilation of the cushion surface guaranteed and also if possible can be arranged advantageously.

This Object is achieved by a method with the in claim 1 and Device with the features mentioned in claim 16 solved.

Thereby, that a through the at least one ventilation device for ventilation of a Motor vehicle seat to be fed gaseous Fluid to at least one predeterminable target surface temperature or below is brought to the gaseous fluid by means of at least one heating device to the predefinable target surface temperature to heat the motor vehicle seat, a method is available which for air conditioning - ventilation and Heating or cooling - especially upholstered motor vehicle seats can be used. The procedure is independently of the prevailing interior temperature of the motor vehicle and functional is able to quickly and effectively achieve the desired temperature-controlled ventilation cushion surface to ensure the vehicle seat.

The Object is further achieved by a device in that the at least one ventilation device at least one ventilation unit each and at least one in front of and / or in front of and behind the ventilation unit arranged element influencing a temperature of the gaseous fluid has, whereby a variable arrangement of the temperature of the gaseous Fluid-influencing elements is advantageously possible.

In The preferred embodiment of the invention is the gaseous fluid to be supplied to the at least one target surface temperature or below brought, the temperature below the target surface temperature is set in a predefinable temperature range.

Further is in a preferred embodiment of the Invention selected the at least one target surface temperature and an actual surface temperature of at least one temperature sensor determined the motor vehicle seat and the heater the difference between the setpoint and actual value of the surface temperature as a manipulated variable.

To achieve the predefinable target surface temperature or the predeterminable temperature range, which is below the target surface temperature, according to the invention, depending on the starting temperature Fluids several procedures possible.

Cooling respectively Heating the gaseous According to the invention, fluids are dependent on whether the starting temperature is greater or less than the target surface temperature and to what extent the predefinable temperature range has already been reached. The starting temperature is according to the process of the invention viewed an interior temperature of the motor vehicle.

The gaseous Fluid is generated by the element influencing the temperature of the gaseous fluid to the target surface temperature or a temperature below in the predefinable temperature range chilled without control or heated up.

In Another procedure is the gaseous fluid, by at least a the temperature of the gaseous Element influencing fluids regulated, to target surface temperature or a temperature in the predeterminable range is cooled or heated.

In Another preferred embodiment of the invention is cooling or Heating the gaseous Fluids depending the interior temperature of the motor vehicle to the target surface temperature by influencing the temperature of the gaseous fluid Element executed in a controlled manner. In addition, the method according to the invention makes it possible to cooling or heating the gaseous Interrupt fluids when the target surface temperature is reached. The cooling or heating is interrupted in particular when the target surface temperature is smaller than a predeterminable temperature difference and / or in a predeterminable period of time not from the specified target surface temperature differs.

The Procedure allows furthermore, for different areas and surfaces different values the target surface temperatures select. For one Motor vehicle seat, it is thus possible a target surface temperature for a Seat part and a different target surface temperature for a backrest part adjust. In this case, the procedure is separated accordingly for the Seat part or for the backrest part executed. The target surface temperature can be dependent of them chosen whether it is for example a leather surface or cloth is.

In Another preferred embodiment of the invention are the heating device seat part and the heater backrest part if exceeded a predetermined temperature switched off for safety reasons. to Shutdown preferably serves at least one temperature sensor seat part heater or temperature sensor backrest heating. It is not absolutely necessary to switch off the heating devices switching off the ventilation equipment, which makes it clear that the heater and ventilation device operated independently of each other within this process can be.

to execution of the method, the device has in addition to the temperature sensor seat heating and the temperature sensor backrest part heating at least one further temperature sensor for the seat part surface and / or at least one temperature sensor for the Backrest part surface.

to The device has a measurement of the interior temperature of the motor vehicle also an indoor temperature sensor.

Finally is to control the process, the device is equipped with a control unit which the individual components of the device for air conditioning (ventilation and Heating) controls and regulates.

Further preferred embodiments of the invention result from the remaining in the subclaims mentioned features.

The In the following, the invention is described in exemplary embodiments on the basis of the associated Drawings closer explained. Show it:

1 a device for air conditioning a motor vehicle seat, which comprises a seat part and a backrest part, with a heating device and a ventilation device and a temperature-influencing element in front of the respective ventilation device;

2 the device for air conditioning a motor vehicle seat, which comprises a seat part and a backrest part, with the heating device and the ventilation device and in each case a temperature-influencing element in front of and behind the respective ventilation device;

3 in a characteristic curve A in a temperature / time diagram the temperature profile of the gaseous fluid in the cooling function of the temperature-influencing element and a heating device and

4 in a characteristic curve B, the temperature profile in a temperature / time diagram of the gaseous fluid in the heating function of the temperature-influencing element and the heating device.

The 1 and 2 each show in one embodiment the device for air conditioning a motor vehicle seat 10 , The motor vehicle seat 10 each includes a seat part 11 and a backrest part 13 , The seat part 11 is a heater seat part 12 and the backrest part 13 a heater backrest part 14 assigned. seat part 11 and backrest part 13 each have a seat padding 16 or a backrest part upholstery 18 on, which has the property that a gaseous fluid, in particular air, through the padding 16 . 18 can flow.

The flow of the upholstery 16 . 18 with the gaseous fluid, hereinafter referred to as air, is not the subject of the invention, so that it is not discussed in more detail.

As well in 1 as well in 2 shown includes the motor vehicle seat 10 at least one temperature sensor seat heating 20 , a temperature sensor backrest heater 22 , a temperature sensor seat part surface 24 and a temperature sensor backrest surface 26 , Another temperature sensor 38 serves to detect an interior temperature T _{interior of} the motor vehicle.

The seat part 11 and the backrest part 13 is a ventilation device 28 or a ventilation device 30 assigned, being in the 1 and 2 the corresponding air inlet directions 34 and air outlet directions 36 by arrows and hints of their distributors 40 inside the seat part 11 or the backrest part 13 are shown.

The on the surface of the seat part 11 or the backrest part 13 arranged temperature sensor 24 . 26 determine a temperature _{actual value} T _{IstS of} the seat part _surface or a temperature _{actual value} T _{Is tR of} the backrest part _surface according to the inventive method.

1 and 2 differ, however, in that a ventilation unit 28C in 1 a first temperature-influencing element 28A in the direction of flow 34 in front of the ventilation unit 28C is arranged and in 2 a first temperature-influencing element 28A in the direction of flow 34 in front and a second temperature-influencing element 28B in the direction of flow 34 behind the ventilation unit 28C is arranged.

Not shown, but also feasible is that only one temperature-influencing element 28B in the direction of flow 34 behind the ventilation unit 28C is arranged.

The same design applies to the backrest part 13 , in which 1 shows that in front of a ventilation unit 30C in the direction of flow 34 seen a first temperature-influencing element 30A is arranged and in 2 a first and a second temperature-influencing element 30A and 30B in the direction of flow 34 in front of and behind the ventilation unit 30C is arranged.

According to the device according to the invention 1 and 2 belonging components are controlled and regulated via a control unit (ventilation and heating controller).

For the temperature-influencing elements 30A and 30B as mentioned, applies that even a temperature-influencing element 30B in the direction of flow 34 behind the ventilation unit 30C can be arranged.

This variable arrangement of the elements 28A . 28B . 30A and 30B in front of, behind or in front of and behind the ventilation units 28C respectively 30C it is now possible to heat or cool the air drawn in before or after the fan.

The temperature-influencing elements 28A . 28B . 30A . 30B can be operated as cooling elements as well as heating elements. In particular, so-called Peltier elements can be used for this.

By the possibility the cooling the air in connection with the seat heating is constructive advantageously possible the ventilation units too in itself warming Body parts, such as those running below the body Exhaust systems to be arranged.

In addition, it is advantageously possible to also heat a motor vehicle, in particular the motor vehicle seat 10 , at short notice through the use of ventilation equipment 28 respectively 30 to flow through with cooled air. The ventilation equipment 28 . 30 can be operated independently of a motor vehicle air conditioning system, whereby a cooled seat part surface or a cooled backrest part surface can nevertheless be reached, particularly in the case of convertibles with an open top in so-called hot countries.

The fact that the temperature-influencing elements 28A . 28B . 30A . 30B , in particular a Peltier element, which can also be operated as auxiliary heating by reversing the polarity of the element, is even in connection with the heating device seat part 12 or the heater backrest part 14 given an advantageous support for the seat heating.

In contrast to the known prior art, a desired temperature _setpoint T _SollS for the seat part _surface or a desired temperature _setpoint T _SollR for the backrest part _{surface is} on the temperature sensors 24 . 26 , how 1 and 2 show, adjustable and desired.

The corresponding mode of operation of the method according to the invention is based on a cooling characteristic curve A in 3 and based on a heating curve B in 4 shown. The basic course of the characteristic curves A and B of the method according to the invention is the same regardless of whether the temperature-influencing elements 28A . 28B respectively 30A . 30B in front of and behind the ventilation unit 28C respectively 30C or only in front of or only behind the ventilation unit 28C and 30C are arranged.

It goes without saying that with an arrangement in front of and behind the ventilation units 28C or 30C a faster effect can be achieved and the arrangement itself offers corresponding design advantages, as already described.

3 shows the characteristic curve A in a temperature / time diagram. The method according to the invention is explained below on the basis of this temperature / time diagram.

The temperature is plotted on the y axis, where 3 the temperature setpoint for both parts of the motor vehicle seat 10 represents for the seat part _surface and the backrest part _surface T _{SollS / R.}

A temperature range T _B is located below this target value T _{SollS / R.} According to the method, a, through the aeration device described above 28 . 30 , for ventilation of the vehicle seat 10 Gaseous fluid to be _{supplied, hereinafter also} air, is brought to at least one predefinable target surface temperature T _SollS or T _SollR or below in a temperature range T _B , after which the air through the heating device 12 . 14 to the predetermined target surface temperature T _SollS or T _{Soll R of} the motor vehicle _seat 10 is heated.

It can be seen from the characteristic curve A that at time t ₀ the air initially assumed a temperature T _{inside of} the interior of the motor vehicle which is above the target surface temperature T _SollS or T _SollR . Would you vent this air now 28 . 30 supply uncooled, it is not possible to reach the target temperature T _{SollS / R.} For this reason, when the ventilation device is switched on 28 . 30 the air is cooled to at least the temperature _setpoint T _{SollS / R} in the shortest possible time t ₀ to t ₁ , after which the heating device 12 . 14 of the seat part 11 or the backrest part 13 the air _adjusts to the corresponding temperature _setpoint T _{SollS / R} , as from 1 can be seen.

The target temperature T _{SollS / R} can assume various predeterminable values. The temperature sensors described above 24 . 26 determine an actual surface temperature T _{IstS / R of} the motor vehicle _seat 10 , whereby a temperature difference target / actual of the seat part surface ΔT _s or a temperature difference target / actual of the backrest partial surface ΔT _{R is} determined. This temperature difference ΔT _s and / or ΔT _R is used as the manipulated variable of the heating device 12 . 14 of the seat part 11 or the backrest part 13 transmitted and the heating device 12 . 14 the air will _adjust according to the desired temperature setpoint T _{SollS / R.}

According to the _{method, the} regulation will result in the temperature _setpoint for the seat part _surface or backrest part _surface T _{SollS / R being} reached in a short time.

According to the invention, it is also possible that the cooling of the air by the elements influencing the temperature 28A . 28B . 30A . 30B is interrupted when the target surface temperature T _{SollS / R is} less than a predeterminable temperature difference ΔT _s or ΔT _R and / or in a predeterminable time period Δt _A , such as 3 shows, does not deviate from the specified target surface temperature T _{SollS / R.}

The same procedure shows 4 , in which a characteristic curve B shows a heating of the air between t ₀ and t ₁ to the desired surface temperature T _{SollS / R} or less than the value t ₁ in a temperature range T _B. According to the air 4 an initial temperature at time t ₀ below the desired target surface temperature T _{SollS / R.} Is the temperature _setpoint T _{SollS / R} by heating the air through the temperature-influencing elements 28A . 28B . 30A . 30B reached or a temperature within the temperature range T _{B is} reached, the heating device 12 . 14 of the seat part 11 or the backrest part 13 heat the air to the temperature _setpoint T _{SollS / R.} In this in 4 shown case act the temperature influencing elements 28A . 28B . 30A . 30B as a kind of auxiliary heater for the heating devices 12 . 14 of the motor vehicle seat 10 ,

According to 3 is the procedure for the characteristic curve B 4 also feasible that heating of the air affects the temperature the elements 28A . 28B . 30A . 30B is interrupted when the target surface temperature T _{SollS / R is} less than a predeterminable temperature difference ΔT _s or ΔT _R and / or in a predeterminable time period Δt _A , such as 4 shows, does not deviate from the specified target surface temperature T _{SollS / R.}

According to the 3 are in 4 the temperature differences ΔTs of the seat part surface or ΔT _{R of} the backrest part _surface to the temperature _setpoint T _{SollS / R} are represented by the control unit 32 (Ventilation / heating controller) to the heating device 12 . 14 are transmitted, whereupon the desired temperature _setpoint T _{SollS / R is} adjusted.

As the temperature setpoint for the surface of the seat part 11 or the surface of the backrest part 13 is known in practice and is, for example, at 25 ° C, there is the possibility within the method to set the temperature-influencing elements, for example the Peltier elements, in heating or cooling mode such that a temperature level in the temperature range T _B , for example, is permanent and uncontrolled between 25 ° C and 18 ° C. The respective heating device takes over within this temperature range 12 . 14 the function of the corresponding heat supply to the desired temperature _setpoint T _{SollS / R.} The method also ensures that the cooling or heating of the air is carried out in a controlled manner as a function of the internal temperature T _{inside of} the motor vehicle and the desired surface temperature T _{SollS / R} by the element influencing the temperature of the gaseous fluid. Within these procedures, the temperature-influencing element, for example the Peltier element, will only ever contribute as much to the cooling or heating of the air as a temperature difference ΔT _s or ΔT _R to the interior T _interior to the desired target surface temperature T _{SollS / R of} the seat part 11 and / or the backrest part 13 given is. This ensures more effective use, for example of Peltier elements or other temperature-influencing elements.

10

Automotive seat

11

seat part

12

Heater-seat part

13

Backrest part

14

Heater-backrest part

16

Seat part upholstery

18

Backrest part padding

20

Temperature sensor seat heating part

22

Temperature Sensor backrest portion Heating

24

Temperature sensor seat part surface

26

Temperature Sensor backrest part surface

28

aerator seat part

28A

first temperature-influencing element seat part

28B

second temperature-influencing element seat part

28C

ventilation unit seat part

30

aerator Backrest part

30A

first temperature-influencing element backrest part

30B

second temperature-influencing element backrest part

30C

ventilation unit Backrest part

32

Control unit (ventilation / heating controller)

34

medium inlet

36

medium outlet

38

Interior temperature sensor

40

distribution medium

T _inside

Interior temperature

T _SollS

Temperature setpoint Seat part surface

T _SollR

Temperature setpoint Backrest part surface

T _Is

actual temperature Seat part surface

T _IstR

actual temperature Backrest part surface

ΔT _s

temperature difference Should / is seat part surface

ΔT _R

temperature difference Should / is part of the backrest surface

T _B

temperature range

Δt _A

Period of time shutdown

A

Cooling curve

B

Heating curve

Claims (22)

Method for controlling and regulating a device for air conditioning a motor vehicle seat ( 10 ), the at least one heating device ( 12 . 14 ) for heating the vehicle seat ( 10 ) and at least one ventilation device ( 28 . 30 ) for ventilation of the vehicle seat ( 10 ), characterized in that a through the at least one ventilation device ( 28 . 30 ) for ventilation of the vehicle seat ( 10 ) the gaseous fluid to be _{supplied is} brought to at least one predefinable target surface temperature (T _SollS , T _SollR ) or below in order to pass the gaseous fluid through the at least one heating device ( 12 . 14 ) to the predefinable target surface temperature (T _SollS , T _SollR ) of the motor vehicle _seat ( 10 ) to heat up. A method according to claim 1, characterized in that the gaseous fluid to be _{supplied is brought} to the at least one predeterminable target surface temperature (T _SollS , T _SollR ) and below it in a predeterminable temperature range (T _B ). A method according to claim 1, characterized indicates that the at least one target surface temperature (T _SollS , T _SollR ) is selected and by at least one temperature sensor ( 24 . 26 ) an actual surface temperature (T _IstS , T _IstR ) of the motor vehicle _seat ( 10 ) determined and the heating device ( 12 . 14 ) the difference (ΔT _s , ΔT _R ) between the setpoint and the actual value of the surface temperature (T _IstS , T _IstR ) is specified as a control value. A method according to claim 1, characterized in that the gaseous fluid by at least one element influencing the temperature of the gaseous fluid ( 28A . 28B . 30A . 30B ) is cooled to a temperature in the predeterminable temperature range (T _B ) without control. A method according to claim 1, characterized in that the gaseous fluid by an element influencing the temperature of the gaseous fluid ( 28A . 28B . 30A . 30B ) is heated to a temperature in the predeterminable temperature range (T _B ) in an uncontrolled manner. A method according to claim 1, characterized in that the gaseous fluid by at least one element influencing the temperature of the gaseous fluid ( 28A . 28B . 30A . 30B ) is cooled to a temperature in the predeterminable temperature range (T _B ). A method according to claim 1, characterized in that the gaseous fluid by an element influencing the temperature of the gaseous fluid ( 28A . 28B . 30A . 30B ) is heated to a temperature in the predeterminable temperature range (T _B ) in a controlled manner. Method according to Claims 5 and 6, characterized in that the cooling or heating of the gaseous fluid as a function of an interior temperature (T _interior ) of the motor vehicle to the desired surface temperature (T _SollS , T _SollR ) by the element influencing the temperature of the gaseous fluid ( 28A . 28B . 30A . 30B ) is carried out in a regulated manner. A method according to claim 7 and 8, characterized in that the cooling or heating of the gaseous fluid by the element influencing the temperature of the gaseous fluid ( 28A . 28B . 30A . 30B ) is interrupted when the target surface temperature (T _SollS , T _SollR ) is reached. A method according to claim 7 to 9, characterized in that the cooling or heating of the gaseous fluid by the element influencing the temperature of the gaseous fluid ( 28A . 28B . 30A . 30B ) is interrupted when the target surface temperature (T _SollS , T _SollR ) is less than a predeterminable temperature difference (ΔT _s , ΔT _R ) and / or in a predeterminable period of time (Δt _A ) not from the predefined target surface temperature (T _SollS , T _SollR ) deviates. Method according to one of the preceding claims, characterized in that different values are selected for the predefinable target surface temperatures (T _SollS , T _SollR ). A method according to claim 1 to 11, characterized in that for ventilation of the ventilation device ( 28 ) the gaseous fluid serving the motor vehicle seat part through the at least one temperature-influencing element ( 28A . 28B ) is brought to at least one temperature in the temperature range (T _B ) below at least the desired surface temperature (T _SollS ) to the gaseous fluid through the heating device ( 12 ) to the target surface temperature (T _SollS ) of the motor vehicle _seat ( 10 ) to heat up. A method according to claim 1 to 11, characterized in that for ventilation of the ventilation device ( 30 ) the gaseous fluid serving the motor vehicle seat part through at least one temperature-influencing element ( 30A . 30B ) is brought to at least one temperature in the temperature range (T _B ) below at least the desired surface temperature (T _SollR ) to the gaseous fluid through the heating device ( 14 ) to the target surface temperature (T _SollR ) of the motor vehicle _seat ( 10 ) to heat up. Method according to one of the preceding claims, characterized in that the heating device seat part ( 12 ) and the heater backrest part ( 14 ) if a predeterminable temperature is exceeded on the temperature sensor seat heating ( 20 ) or temperature sensor backrest part heating ( 22 ) is switched off. A method according to claim 1, characterized in that the heating device ( 12 . 14 ) regardless of the ventilation device ( 28 . 30 ) is operated. Device for air conditioning a motor vehicle seat ( 10 ) that have at least one heating device ( 24 . 26 ) for heating the vehicle seat ( 10 ) and at least one ventilation device ( 28 . 30 ) for ventilation of the vehicle seat ( 10 ), characterized in that the at least one ventilation device ( 28 . 30 ) at least one ventilation unit ( 28C . 30C ) and at least one in front of and / or in front of and behind the ventilation unit ( 28C . 30C ) arranged element influencing a temperature of the gaseous fluid ( 28A . 28B . 30A . 30B ) having. Device according to claim 16, characterized in that a seat part ( 11 ) at least one temperature sensor seat heating ( 20 ) and a backrest part ( 13 ) at least one temperature sensor backrest heater ( 22 ) having. Device according to claim 16, characterized in that the seat part ( 11 ) at least one temperature sensor seat part surface ( 24 ) and the backrest part ( 13 ) at least one temperature sensor backrest surface ( 26 ) having. Apparatus according to claim 16, characterized in that for measuring an interior temperature (T _inside ) at least one interior temperature sensor ( 38 ) is arranged in the interior of the motor vehicle. Device according to one of the preceding claims, characterized in that for controlling and regulating the device, a control device (ventilation / heating) ( 32 ) is arranged. Device according to claim 16, characterized in that the at least one ventilation unit ( 28C . 30C ) is a fan. Device according to one of the preceding claims, characterized in that the element influencing the temperature ( 28A . 28B . 30A . 30B ) is a Peltier element.