DE102019212803A1 - Component, in particular a vehicle seat or item of clothing, with a thermal comfort control that is coupled to a massage device - Google Patents

Abstract

The invention relates to a component which comprises a heating system with a temperature control device and a ventilation device which is coupled to a control and regulating device for controlling the temperature control device of the heating system and the ventilation device, with a humidity sensor arrangement for a humidity of a surface of the component representative humidity value is determined at the installation location of a humidity sensor of the humidity sensor arrangement, so that a comfort state of the person using the component can be brought about by means of the assigned control and regulating device by controlling the temperature control device of the heating system and the ventilation device. It is provided that the component has a massage device which is coupled to the control and regulating device for controlling the seat temperature control device and the ventilation device of the heating system.

Description

The invention relates to a component that comprises a heating system with a temperature control device and a ventilation device which is coupled to a control and regulating device for controlling the temperature control device of the heating system, with a humidity value that is representative of the humidity of a surface of the component by means of a humidity sensor arrangement Installation location of a humidity sensor of the humidity sensor arrangement is determined so that a comfort state of the person using the component can be brought about by means of the assigned control and regulating device by controlling the temperature control device of the heating system and the ventilation device.

The pamphlet DE 10 2014 012 122 A1 relates to an armrest for an interior of a motor vehicle, with a support area on which at least part of an arm of a vehicle occupant can be placed, the armrest having a massage device by means of which the arm of the vehicle occupant can be massaged. The invention also relates to a motor vehicle with at least one such armrest and a method for operating such an armrest.

The pamphlet DE 10 2013 216 885 A1 discloses a vehicle seat with an upholstered seat part and / or an upholstered backrest part which is / are provided with a cover, at least one massage device for massage and at least one heating device for applying heat to body parts coming into contact with the cover of the vehicle seat the person located in the vehicle seat is arranged. It is envisaged that a temperature difference between a cover material in a massage area and a cover material in a non-massage area is caused by changes in the thermal resistance of the cover material of the cover in one of the areas and / or changes in a thermal resistance in areas relating to the material and / or the structure of the cover material of the cover is increased in one of the areas and / or by targeted thermal influence in one of the areas by means of the at least one heating device and / or by specific thermal influencing of the cover material in the massage area by means of an element of the massage device.

The publication 10 2014 206 613 A1 discloses, as the starting point of the invention, a method for air conditioning a vehicle seat occupied by a vehicle occupant, which is equipped with a seat ventilation device and a seat temperature control device, with a humidity value representative of the humidity of a surface of the vehicle seat by means of a humidity sensor arrangement determined and the seat ventilation device and the seat temperature control device are controlled as a function of the determined humidity value. It is provided that the seat ventilation device and the seat temperature control device are additionally controlled as a function of a skin temperature value detected by means of a temperature sensor arrangement and representative of a skin temperature of the face and / or hand area of the vehicle occupant.

With the help of a temperature measurement on the skin (skin temperature value) it can be recognized that the condition is “too cold”. However, it is not possible to differentiate between other states, in the comfort state “neutral or comfortable” and the state “too warm”. During the transition from the comfort state “neutral or comfortable” to the comfort state “too warm”, the body tries to release heat with the help of moisture release and evaporation of the moisture. The skin temperature, which is also known as the contact temperature, remains almost the same.

In order to recognize the states “warm” or “too warm”, the moisture release of a person must be measured accordingly. Just one temperature measurement is not enough. If the temperature and the humidity in the contact area (s) can be measured as contact humidity and contact temperature, it is possible for the ventilation and heating to be regulated independently of one another as required for the backrest and cushions.

The temperature that is measured at an installation location of the temperature sensor in the seat depends on the sensor position (installation location), depending on how far the sensor is from the surface of the skin. In other words, the temperature sensor does not measure the actual temperature between the skin and the cover of the seat part and / or the backrest part.

The humidity that is measured at an installation location of the humidity sensor in the seat depends on the sensor position (installation location), depending on how far the sensor is from the surface of the skin. In other words, the moisture sensor does not measure the actual contact moisture between the skin and the cover of the seat part and / or the backrest part.

• Bei eigenen Versuchen und Aufbauten einer Klimaregelung liegt der Temperatursensor unter dem Sitzbezug und unter der ersten oder gegebenenfalls auch zweiten Kaschierung auf einem Sitzschaum, wobei sich die Anordnung zudem von Fahrzeugsitz zu Fahrzeugsitz unterscheidet.

The temperature control:

• In our own tests and assemblies of climate control, the temperature sensor is located under the seat cover and under the first or, if necessary, also the second lamination on a seat foam, the arrangement also differing from vehicle seat to vehicle seat.

A layer of clothing to be observed is also located between the clothed person sitting on the seat and the cover of the seat part or backrest part.

The actual skin temperature in the contact area cannot therefore be determined by the clothing layer forming an intermediate layer - also independently of the respective temperature sensor positions which differ from vehicle seat to vehicle seat.

However, it is possible to draw conclusions about the skin temperature value in the respective contact area, which is also referred to as the skin contact temperature value.

When measuring subjects, most subjects with a certain sensor position of the temperature sensor under stationary conditions measured a temperature value of around 31 ° C as the comfort temperature. This approx. 31 ° C comfort temperature represents the temperature value that is actually measured at the installation location of the sensor in the seat part and / or backrest part.

This temperature value of 31 ° C, which represents the skin contact temperature value and is measured at the installation location of the sensor in the seat part and / or in the backrest part, is assigned a skin contact temperature value of approximately 34 ° C on the skin in the contact area according to the test subjects' measurements.

The temperature value of 31 ° C representing the skin contact temperature value at the installation location of the sensor is subsequently referred to as the comfort temperature or the comfort temperature value T _K designated.

Became the comfort temperature T _K of approx. 31 ° C, after it was reached at the installation location of the sensor in the seat part and / or in the backrest part, then the temperature fell below the comfort temperature T _K Perceived as uncomfortably cool by the test subjects at the installation site.

With a comfort control according to the disclosure content of the publication DE 10 2014 206 613 A1 it is ensured that the comfort temperature T _K of 31 ° C, which is measured at the installation location of the temperature sensor, is not fallen below, whereby a cooling down of the person or a feeling of coolness of the person is reliably prevented in an advantageous manner.

• Bekannt ist ferner, dass oberhalb einer „Schwülegrenze“ von circa 13,5 g/kg der absoluten Feuchte ein unangenehm warmes Empfinden entsteht. Nach Studienlage liegt dieser Wert im Kontaktbereich am Einbauort des Feuchtesensors gemessen im Sommer bei circa 12 g/kg und im Winter bei circa 14 g/kg. Der Einbauort des Feuchtesensors liegt beispielsweise analog zu dem Temperatursensor unter dem Sitzbezug und unter der ersten oder gegebenenfalls auch zweiten Kaschierung auf einem Sitzschaum.

The humidity control:

• It is also known that above a “humid threshold” of around 13.5 g / kg of absolute humidity, an uncomfortably warm sensation arises. According to studies, this value in the contact area at the installation location of the humidity sensor is around 12 g / kg measured in summer and around 14 g / kg in winter. The installation location of the humidity sensor is, for example, analogous to the temperature sensor, under the seat cover and under the first or, if necessary, also the second lamination on a seat foam.

With a humidity control that depends on the comfort temperature value T _K is carried out, it must therefore be prevented that this humid threshold is exceeded.

In this case, the seat ventilation device is already gently activated in advance when it is recognized that the current measured humidity value is moving towards a value above a humidity limit value of the humid limit.

• Genauso kann die Sitzheizung aktiviert werden, wenn vorausschauend erkannt wird, dass ein aktueller Temperaturmesswert einen Temperaturgrenzwert des Komforttemperaturwertes T_K demnächst unterschreitet.

The temperature and humidity control:

• The seat heating can also be activated if it is recognized in advance that a current measured temperature value exceeds a temperature limit value of the comfort temperature value T _K soon falls below.

The following was also recognized: During the temperature measurement of the comfort temperature value T _K In the contact area of the seat part and / or backrest part, the difficulty arises that in most cases the person sitting on the seat first heats up the seat part and / or the backrest part with their back or buttocks at the time of sitting up or in other words at the beginning of a journey.

The heating already takes place when the seat surface contact temperature, i.e. the temperature on the seat surface of a seat part and / or backrest part, is colder than the person's skin contact temperature value of approx. 34 ° C in the contact area.

Due to the thermal mass of the seat part and the backrest part, it takes approx. 10 - 30 minutes (time span) after corresponding measurements (without seat heating) until the heat flow between the contact surface of the seat part and / or the backrest part and the comfort temperature value T _K is almost constant at the installation location of the temperature sensor, so that only after this Time span - in an approximately thermally steady state - over the comfort temperature value T _K the actual skin contact temperature value of the clothed rider can be reliably deduced

• Hinzu kommt, dass auch im sogenannten thermodynamischen „Wohlfühlzustand“ des Menschen der Wärmestrom zwischen Mensch und Sitzteil und/oder Rückenlehnenteil des Fahrzeugsitzes nicht Null ist, da der Mensch auch im ruhenden thermodynamischen „Wohlfühlzustand“ weiterhin circa 100 Watt an die Umgebung abgibt.

The heat flow control:

• In addition, the heat flow between the person and the seat part and / or the backrest part of the vehicle seat is not zero even in the so-called thermodynamic "state of well-being" of the person, as the person continues to give off around 100 watts to the environment even when the thermodynamic "state of well-being" is at rest.

That is, over a period of time Δt _{heat up} in which the thermal mass of the seat part and / or the backrest part is heated up by the person who sits up and then sits down at a point in time, the temperature sensor at the installation location of the seat part and / or backrest part cannot, for the reasons mentioned, yet indicate the actual skin contact temperature value clad seated person.

An example: In relatively warm conditions of, for example, 20 ° C ambient temperature, the seat part and the backrest part of the vehicle seat are on the seat surface and at the installation location of the temperature sensor and thus the comfort temperature value T _K of the contact area preconditioned to 20 ° C.

If a person sits down on the vehicle seat, the seat heating is previously activated with temperature-controlled seat heating control depending on the specified desired constant "feel-good contact temperature", which is, for example, 34 ° C, in order to set the comfort temperature value as quickly as possible T _K of, for example, 31 ° C.

Since with this procedure, as explained above, the actual thermal comfort state of the person is not taken into account, with this procedure it cannot be taken into account whether the person sitting on is actually cooled down (as is assumed by the known ambient temperature in this example 20 ° C) so that it is not clear whether the person wants the seat heating to be activated at all.

As already explained, the comfort temperature value is also shown T _K at the installation site, if necessary by the heat flow, at least in the described heating-up period Δt _{heat up} changed in such a way that a conclusion can be drawn about the actually desired skin contact temperature value in this heating period Δt _{heat up} is not clearly possible.

For example, by activating the seat heating, a heat flow can be generated at a temperature that the possibly heated person does not want, and which is thus even perceived by the person as unpleasant, since the person is not cooled down, as assumed within the previous control strategy .

In other words, at the time of sitting up, the person sitting on can either not be in the thermally optimal comfort state with a skin contact temperature value <34 ° C (seat heating necessary) or in the thermally optimal comfort state with a skin contact temperature value of = 34 ° C (seat heating not necessary) or even from the outset in a thermally too warm state with a skin contact temperature value (seat heating counterproductive) of greater than> 34 ° C.

The invention is based on the object of creating a comfort-optimized air conditioning system for a component.

The starting point of the invention is a component having at least one air conditioning system that includes at least one heating system with a temperature control device, with at least one temperature sensor as an actual temperature value transmitter for detecting a predeterminable setpoint comfort temperature value of the component, which is a contact temperature value represents a person on a surface of the component, so that a comfort state of the person using the component can be brought about by means of a control and regulating device assigned to the component by controlling the temperature control device of the heating system.

According to the invention, it is provided that the component has a massage device which is coupled to the control and regulating device for controlling the seat temperature control device of the heating system.

It is preferably provided that the temperature control device of the heating system can bring about an initial temperature determined at the installation location of the temperature sensor in a heating-up period of a heating-up scenario and, moreover, a comfort level for the person, depending on an initial temperature determined at a time when a person comes into contact with the component , which is controlled according to a predefinable starting temperature-dependent characteristic in order to regulate the given comfort temperature value along the characteristic.

According to the invention, the specified setpoint comfort temperature value is thereby activated when the Massage device by a predeterminable temperature difference to a target massage - comfort temperature value changed, in particular raised.

According to the invention, it is provided that the component, in addition to the heating system comprising the temperature control device, is equipped with a ventilation device which is coupled to the control and regulating device for controlling the temperature control device of the heating system and the ventilation device, with a humidity sensor arrangement being used to measure the humidity of a surface the component representative humidity value is determined at the installation location of a humidity sensor of the humidity sensor arrangement, so that a comfort state of the person using the component can be brought about by means of the control and regulating device assigned to the component by controlling the temperature control device of the heating system and the ventilation device, so that the component is also a Has massage device, which is now coupled with the control and regulating device for controlling the seat temperature control device of the heating system and the ventilation device lt is.

It is preferably provided that by the temperature control device of the heating system and the ventilation device, depending on the determined humidity value and depending on the initial temperature determined at the installation location of the temperature sensor in the heating period at the time when a person comes into contact with the components at the time of contact of the heating-up scenario is controlled according to the specified initial temperature-dependent characteristic curve in order to regulate the specified desired comfort temperature value along the characteristic curve and a specifiable setpoint humidity with a specifiable setpoint humidity value.

• • der vorgegebene Soll-Komforttemperaturwert erfindungsgemäß bei Aktivierung der Massageeinrichtung um eine vorgebbare Temperaturdifferenz auf einen Soll-Massage - Komforttemperaturwert verändert, insbesondere angehoben, als auch
• • der vorgegebene Soll-Feuchtewert der Soll-Feuchte bei Aktivierung der Massageeinrichtung um eine vorgebbare Feuchtedifferenz auf einen vorgebbaren Massage-Soll-Feuchtewert verändert, insbesondere angehoben wird.

It is provided that both

• • the predetermined target comfort temperature value according to the invention when the massage device is activated by a predetermined temperature difference to a target massage comfort temperature value changed, in particular raised, as well
• • the specified target humidity value of the target humidity when the massage device is activated is changed, in particular increased, by a predefinable humidity difference to a predefinable massage setpoint humidity value.

A vehicle seat, which can also be a child seat, or an item of clothing, which is in particular a jacket or a coat or the like, is considered to be a component. The component can be a partial component of the vehicle seat or a child seat, in particular a seat part, a backrest, a headrest or a side bolster.

In a preferred embodiment, it is provided that components are set up with a control and regulating device for controlling the temperature control device of the heating system or for controlling the temperature control device of the heating system and the ventilation device and the massage device, in order from the point of contact in which the person is in contact with the component comes, which transfers the heat to the component, to switch a heat flow profile of a heat flow sensor within the component as an auxiliary variable to the initial temperature-dependent characteristic.

The control and regulating device is furthermore preferably set up to restore the changed, in particular raised, target massage comfort temperature value and / or the changed, in particular raised, massage target humidity value during the massage or after the massage back to the value before the massage Activation of the massage device to change the predetermined comfort temperature value and / or the predetermined target humidity value back, in particular to lower it.

The respective component is preferably equipped with a pressure sensor, which is coupled to the control and regulating device for controlling the temperature control device of the heating system and the massage device or the temperature control device of the heating system with the ventilation device and the massage device, the pressure sensor system depending on a release, in particular causes the massage device to be activated by the person exerting at least one pressure on the component as a function of a deviation from at least one prescribable pressure.

• 1 ein Flussdiagramm zu einer Regelstrategie einer temperatur- und feuchteabhängigen Sitzheizung eines Fahrzeugsitzes;
• 2 ein T_K/t-Diagramm einer Komforttemperatur T_K über der Zeit mit mehreren Soll-Kennlinien zur Verdeutlichung von komfortoptimierenden Aufheizszenarien der temperatur- und feuchteabhängigen Sitzheizung des Fahrzeugsitzes;
• 3 ein T_K/t-Diagramm der Komforttemperatur T_K über der Zeit mit einer beispielhaften Soll-Kennlinie und einer beispielhaften Ist-Kennlinie zur Verdeutlichung der komfortoptimierenden Aufheizszenarien der temperatur- und feuchteabhängigen Sitzheizung des Fahrzeugsitzes;
• 4 ein T_K/t-Diagramm einer Komforttemperatur T_K über der Zeit mit mehreren Soll-Kennlinien zur Verdeutlichung von komfortoptimierenden Aufheizszenarien der temperatur- und feuchteabhängigen Sitzheizung des Fahrzeugsitzes in Abhängigkeit einer Aktivierung einer Massageeinrichtung;
• 5 ein T_K/t-Diagramm der Komforttemperatur T_K über der Zeit mit einer beispielhaften Soll-Kennlinie und einer beispielhaften Ist-Kennlinie zur Verdeutlichung der komfortoptimierenden Aufheizszenarien der temperatur- und feuchteabhängigen Sitzheizung des Fahrzeugsitzes in Abhängigkeit der Aktivierung der Massageeinrichtung.

The invention is explained with reference to the accompanying drawings, a vehicle seat being described by way of example. The description also applies analogously to a child seat or an item of clothing. Show it:

• 1 a flowchart for a control strategy of a temperature- and humidity-dependent seat heating of a vehicle seat;
• 2 a T _K / t diagram of a comfort temperature T _K over time with several target characteristics to illustrate comfort-optimizing heating scenarios for the temperature and humidity-dependent seat heating of the vehicle seat;
• 3rd a _TC / t diagram of the comfort temperature T _K over time with an exemplary target Characteristic curve and an exemplary actual characteristic curve to illustrate the comfort-optimizing heating scenarios of the temperature and humidity-dependent seat heating of the vehicle seat;
• 4th a T _K / t diagram of a comfort temperature T _K over time with several target characteristics to illustrate comfort-optimizing heating scenarios of the temperature and humidity-dependent seat heating of the vehicle seat as a function of an activation of a massage device;
• 5 a _TC / t diagram of the comfort temperature T _K over time with an exemplary target characteristic curve and an exemplary actual characteristic curve to illustrate the comfort-optimizing heating scenarios of the temperature and humidity-dependent seat heating of the vehicle seat as a function of the activation of the massage device.

1 shows a fully automatic temperature control as a control strategy in an actively switched air conditioning system in a flow chart for the case that a comfort temperature value measured at the installation location of the temperature sensor T _K of 31 ° in the contact area has already been adjusted.

According to the status rectangle 22nd the regulation of an air conditioning system, comprising a seat ventilation system and seat heating, is active and the functions can be set according to the decision rectangles 23 , 25th , 27 , 29 be put (switched) into a switched-on or switched-off state. The seat part and / or backrest of a vehicle seat (not shown) are correspondingly equipped with the seat ventilation system and seat heating.

Will correspond to a first decision rectangle 23 a stable temperature reading of the comfort temperature value by means of the temperature sensor on the upholstery side in the respective contact area T _K of greater than or equal to 31 ° C and a stable absolute humidity reading below the absolute humidity limit value of 15 g / kg using the upholstery-side humidity sensor, optimal conditions exist in the contact area (s), so that according to the status rectangle 24 No activation of a heating surface of the seat heating and no activation of the seat ventilation system takes place. This desirable state can already have been regulated in advance as a target comfort state with the following control strategies.

Will be according to a decision rectangle 23 subsequent decision rectangle 25th an absolute moisture reading relatively far below 12 g / kg, for example at 9 g / kg, with a rapidly increasing tendency, is determined according to a status rectangle 26th the seat ventilation system is switched on with a control signal to counteract this increasing tendency, in order to prevent the humidity measurement value from overshooting the humidity limit value of 15 g / kg, with a temperature measurement value of the comfort temperature value on the control side T _K of approx. 31 ° C as a temperature limit value is observed.

Lies with one of the decision rectangles 23 also the following decision rectangle 27 a temperature reading of the comfort temperature value T _K > 31 ° C higher with a falling trend or equal to the temperature limit value of the comfort temperature value T _K = 31 ° C with a falling trend or a temperature measurement _{value of the comfort temperature value T K} <31 ° C below 31 ° C, is displayed according to a status rectangle 28 the heating surface of the seat heating is switched on with a control signal to regulate the temperature to the temperature limit value of 31 ° C.

It continues at one of the decision rectangles 23 also the following decision rectangle 29 If an absolute humidity reading above 15 g / kg is determined as the humidity limit value, the seat ventilation system is switched on with a control signal according to a status rectangle 30 for a reduction in the absolute humidity value below the humidity limit value of 15 g / kg.

According to the status rectangles 26th and 30, the seat ventilation system is thus switched on, with the seat heating system also according to the status rectangle 28 is switched on when the explained conditions are met.

The upholstery parts of the seat part and / or the backrest of the vehicle seat are thus ventilated and heated by means of the seat ventilation system and the seat heater.

Adjustable heating elements are arranged in the upholstered parts of the vehicle seat. In other words, the seat part and / or the backrest has a seat heater or a seat heating system.

The ventilation system comprises at least one fan which draws or blows air out of the interior of the vehicle via the respective upholstery of the vehicle seat into the interior of the vehicle via ventilation openings in the respective upholstery part.

The respective upholstery part has at least one temperature sensor as an actual temperature value transmitter for the temperature within the upholstery part and at least one humidity sensor as a humidity Actual value transmitter for the absolute humidity within the upholstery part.

As a result, the thermal state conditions for the at least one contact area of an upholstery part with a control device with the heating system and / or with the ventilation system with a control algorithm evaluating the recorded actual temperature values and actual humidity values by varying the air flow and / or the heating power as a target for a thermal comfort state to a specifiable target temperature measured value of the target comfort temperature value T _K target , optionally an adjustable target temperature limit range between 29 ° C and 33 ° C, preferably 31 ° C, and to an absolute target humidity measurement value between 12 g / kg and 15 g / kg, preferably below and less than an absolute target humidity limit value, if necessary a specifiable absolute target humidity limit value of 15 g / kg can be regulated.

According to the status rectangles 26th , 30 the seat ventilation system is thus switched on and in accordance with the status rectangle 28 possibly also for switching on the seat heating system, with an “extended comfort-optimized mode of operation” being proposed in each case in the automatic mode of the control, which is explained in more detail in another earlier application by the applicant.

The inventive method is based on the 1 fully automatic seat heating control according to the "comfort-optimized operating mode" as described in 1 and description or the "extended comfort-optimized mode of operation", which is set out in detail in the older patent application based on the "comfort-optimized mode of operation".

As already explained, there is the problem that, due to the thermal mass of the seat part and / or the backrest part (without seat heating), according to corresponding measurements, it takes about 5 min to 30 min (time span) until the heat flow between the occupant contact surface of the seat part and / or the backrest part and the representative contact area in which the comfort temperature value T _K is measured, is almost constant, so that only after this period of time - in an approximately thermally steady state - can the actual skin contact temperature value of the clad sitting person be reliably inferred

This period of time is hereinafter referred to as the heating-up period Δt _{heat up} designated.

According to the invention, it is provided that temporally predetermined heating processes are used for the comfort-optimized or the extended comfort-optimized comfort control, which are based on a starting temperature or starting temperature T _A depend in the seat part and / or in the backrest part of the vehicle seat.

2 shows a T _K / t-diagram of a contact temperature over time with a plurality of desired characteristic curves for clarity of the vehicle seat comfort optimizing Aufheizszenarien the temperature- and moisture-dependent seat heating.

By means of a ride-on detection device of the vehicle seat, an initial temperature is set in the contact area of the seat part and / or the backrest part at the point in time to when a person is seated T _A measured. Each determined initial temperature T _A a previously determined and stored characteristic curve is assigned as a temporal "feel-good" temperature profile, which according to the invention is approached in terms of control technology, as will be explained below.

2 shows an example of characteristic curves for an initial temperature T _A = -20 ° C, -10 ° C, 0 ° C, 10 ° C, 20 ° and 30 ° C, in different heating-up periods Δt _{heat up} , ( t ₀ -t ₁ , t ₀ -t ₂ , t ₀ -t ₃ , t ₀ -t ₄ , t ₀ -t ₅ , t ₀ -t ₆ ) a desired setpoint comfort temperature value T _K target of, for example, 31 ° C.

Some of the characteristics K target ... ° are exemplified with K-Soll0 ° (starting temperature = T _A = 0 ° C), K-Soll10 ° (starting temperature = T _A = 10 ° C), and K-Soll20 ° (starting temperature = T _A = 20 ° C) .

In contrast to the prior art, in the case of the seat heating control according to the invention, a seat heating power is after one to the point in time t ₀ measured initial temperature T _A over time t to the target comfort temperature value T _K target regulated.

The following specifications apply to a combined comfort control of seat heating and seat ventilation.

The comfort control of the seat heating and the seat ventilation is based on the seat heating control based on the initial value measured at time to T _A over time t to the target comfort temperature value T _K target for example 31 ° C.

Is that at time to corresponding to the initial value T _A measured comfort temperature value T _K -is (compare 3rd ) according to the underlying characteristic K target ... ° at this point in time and at a later point in time, it is warmer than the optimal desired comfort temperature value T _K -Soll, so is not heated, which a heat flow supplied via the seat heater with a certain Heat flux would be perceived as uncomfortable by the person.

Is that at the time t ₀ according to the initial value T _A measured actual comfort temperature value T _K -actual (compare 3rd ) according to the underlying characteristic K target ... ° at this point in time and at a later point in time, it is colder than the optimal setpoint comfort temperature value T _K target This is how heating is added, because a supplied heat flow is necessary in order to maintain or achieve the person's thermal comfort level.

It is provided that the further the measured comfort temperature value increases T _K -is of the respective characteristic K target ... ° removed, in other words the greater the difference between T _K -Soll of the respective characteristic K target ... ° and the actual comfort temperature value T _K -is is, the more heating power is supplied in order to return to the predetermined temperature curve, that is to say the respective characteristic curve, according to a predetermined gradient K target ... ° approximate.

This also takes place in the different heating-up periods Δt _{heat up} , (t _a -t ₁ , t ₀ -t ₂ , t ₀ -t ₃ , t ₀ -t ₄ , t ₀ -t ₅ , t ₀ -t ₆ ) in addition to the control-related approach to the respective characteristic K target ... ° It is also ensured that the moisture value always remains below 15 g / kg, which means that in addition to the seat heating that may be switched on, the seat ventilation according to the status rectangles is also ensured 26th or 30 according to 1 and the associated description is activated to prevent the person from cooling down or sweating.

It goes without saying that the characteristics K target ... ° are different for different seat variants, sensor positions, materials used and are determined and adapted accordingly.

It is also understood that the characteristics K target ... ° for the seat part and the backrest part can also be determined separately and stored accordingly.

The characteristics K target ... ° For the seat part and / or the backrest part of the vehicle seat, a database is stored on a control unit, which is assigned to the vehicle seat or the vehicle, for comfort-optimized seat heating control.

It is provided that the characteristic curve course of the characteristic curves K target ... ° can be adjusted afterwards.

It is also disclosed that the characteristics K target ... ° , unlike in the 2 and 3rd shown, follow a linear function or a step function. There is even the possibility of the respective function depending on the initial temperature T _A to design differently.

According to one aspect of the invention it is provided that the characteristic curves K target ... ° or the measured heat flux density can be automatically adapted as a function of a determined solar radiation on the occupant.

It is provided that the information about the solar radiation intensity is provided by a sun sensor. For this purpose, the vehicle has a sun sensor that measures the radiation intensity of the sun acting on the vehicle seat and the person.

The person is automatically supplied with less heat via the seat heater, in particular when a definable limit value of the detected solar radiation intensity is exceeded. In other words, the specified characteristic curve course (the characteristic curve K target ... ° ) or the determined characteristic curve (the heat flux density) is adjusted depending on the detected radiation intensity.

Either the specified initial temperature-dependent characteristic is used as the characteristic K target ... ° adapted or the measured heat flow profile is adapted as a function of the radiation intensity.

According to another embodiment variant, a high radiation intensity also leads to a characteristic curve in which, for example, the characteristic curves K target ... ° are given less steeply than the originally underlying characteristic curve, so that the respective characteristic curve K-Is the K target ... ° reached faster, which means that the seat heating will probably not be switched on and that it will overshoot the target contact temperature value T _K target of, for example, 31 ° C is avoided.

In addition, in another procedure, it is proposed that when the defined limit value of the detected radiation intensity of the sun is exceeded, the characteristic curve selected at time to, in particular the characteristic curve K target ... ° be shifted to a range towards higher temperatures, that is, it will not be the characteristic curve, for example K-Soll10 ° , but for example the characteristics K-20 ° selected, or the heat flow curve is adjusted downwards via a correction value, whereby the seat heating is only switched on later.

It is also proposed that the stored characteristic curves K target ... ° be automatically adapted or adapted to different times of the day and seasons and / or outside temperatures and / or clothing conditions of a person.

In particular, it is provided that the person himself / herself uses the characteristic curves as a function of the initial temperature-dependent comfort temperature curves K target ... ° can influence these characteristics via appropriate operating and visualization devices belonging to the vehicle seat K target ... ° to be individually adapted to suit your comfort

The characteristics K target ... ° are preferably stored in at least one personalized climate profile that is / are assigned to one or more person (s). The personalized climate profiles can be called up if required.

Overall there is the possibility of the characteristic curves K target ... ° to adjust the control "warmer" or "colder" according to a desired comfort level. The target comfort temperature value T _K target of 31 ° C, for example, can be increased (“warmer” tuning) or reduced (“colder” tuning), thereby reducing the characteristic curves K target ... ° in a simple manner assume a corresponding other characteristic curve with a different steepness, so that the characteristic curve K target ... ° in the case of a "warmer" vote, for example, also about the target comfort temperature value T _K target of, for example, 31 ° C or, in the case of a "colder" vote, below the temperature value of the target comfort temperature value T _K target of, for example, 31 ° C.

3rd shows, for further explanation, a T _K / t diagram of the contact temperature over time with an exemplary setpoint characteristic K-Soll10 ° and an exemplary actual characteristic K-Is to illustrate the comfort-optimizing heating scenarios of the temperature and humidity-dependent seat heating of the vehicle seat.

This in 3rd The _TC / t diagram shown can apply to a seat part or to a backrest part. In this example, it is assumed that the temperature sensor at the time to when the person is seated has an initial temperature of T _A = 10 ° C as the starting temperature T _A is measured. In this case, the heating-up scenario is based on the characteristic curve stored in a control unit K-Soll10 ° instead of.

After the person has been seated, the actual temperature value measured in the contact area is thus cyclically, for example every second, according to the characteristic curve K-Is with the target comfort temperature value T _K target compared, whereby the heat input originating from the person is taken into account.

From the 3rd it can be seen, for example, that the characteristic K-Is in two areas below the characteristic K-Soll10 ° runs so that in the respective areas for a certain time _A .delta.t the seat heating is activated to match the characteristic K-Is in the direction of the characteristic K-Soll10 ° a to regulate.

Analogous to this, there are areas in which the characteristic curve K-Is runs above the characteristic curve K-Soll10 °, with a range in 3rd is shown. In this case and as soon as the characteristic K-Is the characteristic K-Soll10 ° has reached, it is ensured that the seat heating is switched off, as in FIG _A .delta.t is made clear.

Using this procedure, taking into account the heat flow entered by the person in the vehicle seat, both the amount of heat per se and the inertia of the system during the transfer of the person's heat during the heating-up period are advantageously determined Δt _{heat up} , according to the embodiment in the period t ₀ -t ₃ taken into account accordingly.

After the heating-up period Δt _{heat up} , t ₀ -t ₃ the corresponding regulation described above in accordance with 1 and the associated description are active, since the corresponding desired comfort temperature value is in the selected exemplary embodiment T _K target = 31 ° at the time t ₃ is reached.

To overshoot the characteristic K-Is via the respective characteristic K target ... ° To avoid this, it is also proposed that the heating-up scenario is only activated when the initial temperature T _A compares 1 - exceeds a certain limit value. This limit value can be individually changed or stored permanently in the corresponding computer program within the control device. It is thus possible, for example, to be above or equal to an initial temperature measured at time to T _A to cause the heating-up scenario to be switched to inactive as a limit temperature of, for example,> / = 10 ° C or> / = 20 ° C.

In another alternative procedure, which can also be combined with the one previously described, the regulation is not based on the characteristic curves of the characteristic curves K target ... ° , that means the temperature profiles are not dependent on the point in time t ₀ corresponding initial value T _A is used as a basis, but rather heat flow curves between the person and the seat part and / or between the person and the backrest part are measured in the contact area for a seat heating control of the seat heating.

In other words, starting from a heat flow starting ^{value 0, a heat flow density W / m 2 is} measured in the seat part and / or the backrest part, which is introduced into the seat part and / or the backrest part immediately after the person is seated.

For example, it is in different heating-up periods Δt _{heat up} a negative heat flow of, for example, 0 to 100 W / m ² can be determined, which is introduced into the seat part and / or the backrest part by the person sitting on it. Thus, by permanently checking the heating process, i.e. the heat flux density W / m ^2, it can be determined whether the heat flux between the person and the vehicle seat is already sufficiently large so that the seat heater has to be used for heating or not depending on the control deviation present at the respective point in time .

Based on the technical characteristics according to the description of the 1 to 3rd the air conditioning system with the functions of the fully automatic thermal comfort control explained above is coupled with a massage device, and the fully automatic functions of the thermal comfort control explained are combined with the massage function, as will be explained below.

That is, a desired activation of a massage function is prepared to the effect that with the increase in the contact temperature T _K to improve blood circulation before and during the massage. In this way, the massage becomes more effective in its effect, since the relevant body regions of a person are better supplied with blood. After or during the massage, the person is brought back into the usual comfort range described above after a predeterminable time.

The 4th shows a T _K / t diagram of a contact temperature T _K Over time with several target characteristics to illustrate comfort-optimizing heating scenarios of the temperature and humidity-dependent seat heating of the vehicle seat as a function of an activation of a massage device.

It becomes clear that a desired massage comfort temperature value T _K -set-M is introduced, which is approached as soon as an activation of the massage function and the massage device has taken place. The setpoint massage comfort temperature value T _K -M setpoint is therefore no longer the comfort temperature value in the exemplary embodiment (as was previously the case) T _K of around 31 ° C at the installation location of the temperature sensor, but in the massage function, the fully automatic thermal comfort control becomes, for example, a massage comfort temperature value T _K -M of approx. 34 ° C at the installation location of the temperature sensor.

The massage comfort temperature value T _K -M of approx. 34 ° C corresponds to a skin contact temperature value of 38 ° C in analogy to the previous explanations.

In other words, when the massage device is activated, the massage characteristics K-Soll-M ... ° are run, which are exemplified with K-Soll-M0 ° (initial temperature = T _A = 0 ° C), K-Soll-M10 ° (starting temperature = T _A = 10 ° C), and K-Soll-M20 ° (starting temperature = T _A = 20 ° C), analogous to 2 are shown. By having the massage heat-up period Δt _heat-up -M in 4th compared to the previous heating-up period Δt _{heat up} according to 2 is not extended in time, the massage characteristics K-Soll-M ... ° are designed to be correspondingly steeper. It goes without saying that a different massage heat-up period Δt _heat-up -M can be selected so that the steepness of the characteristics K-Soll-M ... ° can be adapted accordingly.

Advantageously, when a massage function is activated by increasing the comfort temperature value T _K -M of about 34 ° C an improvement in blood flow is achieved. In this way, the massage becomes more effective, i.e. more effective due to the higher temperature and humidity.

It is planned that the humidity limit, i.e. the absolute target humidity limit value of 15 g / kg, is temporarily set to a higher level of absolute humidity of, for example, +3 g / kg in order to temporarily prevent the person's skin from warming Reduce cooling with increased ventilation.

It is provided that after or during the massage, after a predeterminable certain time, the person is brought back into the comfort area that is in the 2 and 3rd is shown and described.

_{As explained, the setpoint massage comfort temperature value T K} -M setpoint of, for example = 34 ° C., can be restored to the original level to the setpoint comfort temperature value even during or after the end of the massage (function) T _K target of, for example, 31 ° C. According to the invention, this also applies to the absolute target massage humidity limit value, which is set high to 18 g / kg, for example, which according to the invention can be reset from 18 g / kg of absolute humidity to 15 g / kg already during the massage function or after the massage (function) has ended.

The 5 shows a T _K / t diagram of the contact temperature T _K over time with an exemplary target characteristic curve and an exemplary actual characteristic curve to illustrate the comfort-optimizing heating scenarios of the temperature and humidity-dependent seat heating of the vehicle seat as a function of the activation of the massage device.

This in 5 The T _K / t diagram shown shows in comparison to the previously explained characteristic curve stored in the control unit K-Soll10 ° (compare 3rd ), the massage characteristic curve K-Soll-M10 ° of the heating-up scenario in the massage heating-up period provided when the massage function is activated Δt _heat-up -M according to 4th .

After the person has been seated, the actual temperature value measured in the contact area according to the actual massage characteristic curve is displayed in cycles, for example every second, when the massage function is active K-Is-M with the target massage comfort temperature value T _K -set-M compared, whereby the heat input originating from the person is also taken into account.

From the 5 it can be seen, for example, that the actual massage characteristic K-Is-M in two areas below the target massage curve K-target-M10 ° runs so that in the respective areas for a certain time _A .delta.t the seat heating is activated to match the actual massage curve K-Is-M in the direction of the target massage curve K-Soll10 ° to regulate.

Analogous to this, there are areas in which the actual massage characteristic curve K-Is-M runs above the target massage characteristic curve K-Soll-M10 ° -M, with a range in 5 is shown. In this case and as soon as the actual massage curve K-Is the target massage curve K-target-M10 ° has reached, it is ensured that the seat heating is switched off, as in 5 by the reference number _A .delta.t is made clear.

Using this procedure, taking into account the heat flow entered by the person in the vehicle seat, both the amount of heat per se and the inertia of the system during the transfer of the person's heat in the massage heating period are determined Δt _heat-up -M , according to the embodiment in the period t ₀ -t ₃ taken into account accordingly.

After the massage warm-up period Δt _heat-up -M , t ₀ -t ₃ the corresponding regulation described above in accordance with 1 and the associated description active, since in the selected _{exemplary embodiment the corresponding desired setpoint massage comfort temperature value T K} setpoint M = 34 ° C. at the point in time t ₃ is reached.

To overshoot the actual massage characteristic K-Is-M To avoid using the respective target massage characteristic curve K-Soll-M ... °, it is still proposed, analogously to the previous description, that the massage heating-up scenario is only activated when the initial temperature is reached T _A exceeds a certain limit.

A described air conditioning system with the explained thermal comfort control and a massage device coupled to the air conditioning system with the explained massage function can, for example, also be integrated in an item of clothing, in particular a jacket or the like.

The described air conditioning system with the explained thermal comfort control and a massage device coupled to the air conditioning system with the explained massage function in the vehicle seat or in an item of clothing can be combined in a further embodiment of the invention with a pressure sensor that is arranged / formed in the vehicle seat and / or in the item of clothing is.

It is provided that preferably by means of several pressure sensors in the vehicle seat or a component (seat part, backrest part etc ...) of the vehicle seat and / or in the item of clothing or a component of the item of clothing (in the back part of a jacket or a coat over a predetermined period of time an asymmetrical Seat pressure distribution is detected, so that the massage function is initiated fully automatically and the massage device is switched on as a function of this detected asymmetrical seat pressure distribution. For example, it is provided that threshold values for an asymmetry of the pressure distribution between the left and right halves of the body in the seat part and / or the backrest are specified independently of one another If these threshold values are exceeded for a predetermined time, the massage function is initiated fully automatically.As explained, this massage function can be supported by increasing the desired massage comfort temperature value T _K -M-Soll (for example 31 ° C to 34 ° C) or with a support by increasing the target massage comfort temperature value T _K -M-Soll (only for example 31 ° C to 34 ° C) and an increase in the absolute target massage humidity limit value (only for example 15 g / kg to 18 g / kg) can be implemented as described above.

If the pressure sensor system is formed in the person's item of clothing and in the seat part and in the backrest, it can be provided that the asymmetrical seat pressure distribution when the person is sitting on who is wearing the item of clothing in the form of a jacket or a coat or the like is clothed, is recognized by the pressure sensor system in the seat part, the asymmetrical pressure distribution in the back area of the person being recognized by the pressure sensor system for the item of clothing and / or by the pressure sensor system in the backrest. Depending on the component in which the asymmetrical pressure distribution is recognized, the air conditioning system with the explained thermal comfort control and the massage device coupled with the air conditioning system with the explained massage function in the seat part and / or in the item of clothing and / or in the backrest are activated and according to the above Description controlled and regulated.

The vehicle seat and the respective item of clothing are set up to carry out the thermal comfort control by means of the air conditioning system (including the temperature control device of the heating system and the ventilation device) and the massage function by means of the massage device as well as the pressure distribution measurement by means of the pressure sensors. For this purpose, the vehicle seat and / or the respective item of clothing comprises, in particular, a control device in which a computer-readable program algorithm for executing the functions and possibly required characteristic curves and maps is stored.

List of reference symbols

22nd

Status rectangle

23

Decision rectangle

24

Status rectangle

25th

Decision rectangle

26th

Status rectangle

27

Decision rectangle

28

Status rectangle

29

Decision rectangle

Δt _{heat up}

Heating-up period

Δt _heat-up -M

Massage function heat-up period

t ₀ , t ₁ , t ₂ , t ₃ , t ₄ , t ₅ , t ₆

time

T _K

Comfort temperature value at the installation location of a temperature sensor

T _K target

Target comfort temperature value

T _K -is

Actual temperature value

T _K -M

Massage comfort temperature value at the installation location of the temperature sensor

ΔT-M

Amount of temperature difference between T _K and T _K -M

T _K -set-M

Massage target comfort temperature value at the installation location of the temperature sensor

t

time

T _A

Initial temperature

K target ... °

Target characteristic

K-Soll0 °

Target curve at an initial temperature T _A from 0 ° C

K-target-M0 °

Target curve massage at an initial temperature T _A from 0 ° C

K-Soll10 °

Target curve at an initial temperature T _A of 10 ° C

K-target-M10 °

Target curve massage at an initial temperature T _A of 10 ° C

K-Soll20 °

Target curve at an initial temperature T _A from 20 ° C

K-target-M20 °

Target curve massage at an initial temperature T _A from 20 ° C

K-Is

Actual characteristic

K-Is-M

Actual massage curve

_A .delta.t

Seat heating on period

Δt _off

Seat heating off period

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 102014012122 A1 [0002]
• DE 102013216885 A1 [0003]
• DE 102014206613 A1 [0017]

Claims (9)

Component, having at least one air conditioning system, which comprises at least one heating system with a temperature control device, with at least one temperature sensor as an actual temperature value transmitter for detecting a predefinable setpoint comfort temperature value (T _K setpoint) of the component being arranged at a predeterminable installation location of the component, the one Contact temperature value of a person on a surface of the component, so that a comfort state of the person using the component can be brought about by means of a control and regulating device assigned to the component by controlling the temperature control device of the heating system, characterized in that the component has a massage device, which with the control - and control device for controlling the seat temperature control device of the heating system is coupled. Component after Claim 1 , Characterized in that through the temperature-control of the heating system in response to a, determined at a time point (to), in which a person engages the component to a contact time in contact at the installation location of the temperature sensor initial temperature (T _A) in a warm-up period (At _{heating up} ) of a heating-up scenario and, in addition, a comfort state of the person can be brought about, which is controlled according to a predefinable initial temperature-dependent characteristic (K-Soll ... °) in order to increase the specified comfort temperature _{value (T K} -oll) along the characteristic (K-Soll ..) . °), whereby the specified target comfort temperature _{value (T K} -set) is changed, in particular increased, by a predeterminable temperature difference (ΔT-M) to a target massage comfort temperature value (T _{K -M-Soll) when the massage device is activated} . Component after Claim 1 , characterized in that the component, in addition to the heating system comprising the temperature control device, is equipped with a ventilation device which is coupled to the control and regulating device for controlling the temperature control device of the heating system and the ventilation device, a humidity sensor arrangement being used to measure the humidity of a surface the component representative humidity value is determined at the installation location of a humidity sensor of the humidity sensor arrangement, so that a comfort state of the person using the component can be brought about by means of the control and regulating device assigned to the component by controlling the temperature control device of the heating system and the ventilation device, characterized in that the component has a massage device which is coupled to the control and regulating device for controlling the seat temperature control device of the heating system and the ventilation device. Component after Claim 3 , characterized in that the temperature control device of the heating system and the ventilation device determined at the installation location of the temperature sensor as a function of the determined humidity value and as a function of the point in time (t ₀ ) in which a person comes into contact with the components at the point of contact Starting temperature (T _A ) in the heating-up period (Δt heating- _up ) of the heating-up scenario is controlled according to the specified initial temperature-dependent characteristic (K-Soll ... °) to the specified comfort temperature _{value (T K} -oll) along the characteristic (K-Soll ... °) and a predefinable target humidity with a predefinable setpoint humidity value, • the predefined setpoint comfort temperature _{value (T K} -oll) when the massage device is activated by a predefinable temperature difference (ΔT-M) to a setpoint massage -Convenience temperature value (T _K -M-Soll) changed, in particular raised, and • the specified setpoint humidity value of the setpoint humidity Activation of the massage device is changed, in particular increased, by a predeterminable humidity difference to a predeterminable massage target humidity value. Component after Claim 1 or 3rd , characterized in that the control and regulating device is set up to control the temperature control device of the heating system or to control the temperature control device of the heating system and the ventilation device and the massage device, in order from the time of contact in which the person comes into contact with the component which the heat transferred to the component, to apply a heat flow curve of a heat flow sensor within the component as an auxiliary variable to the initial temperature-dependent characteristic (K-Soll ... °). Component after Claim 2 or 4th , characterized in that the control and regulating device is set up to compensate the changed, in particular raised, desired massage comfort temperature value (TK-M-Soll) and / or the changed, in particular increased, massage target humidity value during the Massage or after the massage back to the comfort temperature _{value (T K} setpoint) and / or the predefined setpoint humidity value predefined before the activation of the massage device, in particular to be reduced. Component after Claim 1 or 2 , characterized in that the component with a Pressure sensor system is equipped, which is coupled to the control and regulating device for controlling the temperature control device of the heating system and the massage device or the temperature control device of the heating system with the ventilation device and the massage device, the pressure sensor system depending on a release, in particular by the at least one pressure on the Component exercising person causes activation of the massage device depending on a deviation from at least one prescribable pressure. Component according to at least one of the Claims 1 to 7th , characterized in that the component is a partial component of a vehicle seat or a child seat, in particular a seat part, a backrest, a headrest or a side bolster of one of the aforementioned components. Component according to at least one of the Claims 1 to 7th , characterized in that the component is an item of clothing, in particular a jacket or the like.

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