Method for controlling the temperature of a vehicle interior

Abstract

The invention relates to a method for controlling a temperature (58) of a vehicle interior (12) of a vehicle (10), the temperature (58) being controlled by a controller (22), in particular a PID controller, in that a controller output variable (60) for controlling the temperature of the vehicle interior (12) is output by the controller (22), which is determined at least as a function of the measured temperature (58) of the vehicle interior (12). According to the invention, the regulator output variable (60) is fed as an input variable to a fuzzy logic (64), said input variable being smoothed by the fuzzy logic (64) at least as a function of at least one individual temperature sensing value, in particular a PMV value (62), of at least one vehicle occupant (40).

Description

TECHNICAL FIELD

[0001] The invention is based on a method for regulating the temperature of a vehicle interior of a vehicle, wherein the temperature is regulated by a regulator, in particular a PID regulator, in such a way that a regulator output variable for the temperature regulation of the vehicle interior is output by the regulator, which is determined at least as a function of a measured temperature of the vehicle interior. BACKGROUND

[0002] A method for regulating the temperature of a vehicle interior of a vehicle has been proposed, wherein the temperature is regulated by a regulator, in particular a PID regulator, in such a way that a regulator output variable for the temperature regulation of the vehicle interior is output by the regulator, which is determined at least as a function of a measured temperature of the vehicle interior. SUMMARY

[0003] The invention is based on a method for regulating the temperature of a vehicle interior of a vehicle, wherein the temperature is regulated by a regulator, in particular a PID regulator, in such a way that a regulator output variable for the temperature regulation of the vehicle interior is output by the regulator, which is determined at least as a function of a measured temperature of the vehicle interior.

[0004] It is proposed that the regulator output variable is fed as an input variable to a fuzzy logic, wherein the input variable is smoothed by the fuzzy logic at least as a function of at least one personal temperature perception value, in particular a PMV value, of at least one vehicle occupant.

[0005] The configuration of the method for the temperature regulation according to the invention advantageously makes it possible to provide a method with low computing power, since in particular the input variable is smoothed by the fuzzy logic. Since the input signal is smoothed by the fuzzy logic in such a way that the input variable is assigned to a class, it is advantageously possible to provide small complexity. Advantageously, since the temperature regulation is kept constant in particular by the smoothing of the input variable by the fuzzy logic, it is possible to provide particularly high efficiency, since high-energy temperature overshoots are avoided. Advantageously, since in particular small temperature oscillations occur in the control loop as a result of the smoothing by the fuzzy logic, it is possible to provide particularly robust regulation.

[0006] Preferably, the vehicle is configured as an electrically driven vehicle. Preferably, the vehicle is configured as a car or a truck. Alternatively, the vehicle can also be configured as a similar forward motion appliance, such as an airplane, a train, a ship, etc. Preferably, the vehicle has a vehicle interior space in which at least during operation of the vehicle vehicle occupants can be accommodated. In particular, the vehicle interior space is at least substantially closed. Preferably, the vehicle has seats arranged in the vehicle interior space. Preferably, the vehicle has at least one air conditioning device by means of which the vehicle interior space is air-conditioned. Preferably, the vehicle interior space is tempered by the air conditioning device when the vehicle doors and the vehicle windows are closed. In particular, the air conditioning device for tempering the vehicle interior space is switched off when at least one of the vehicle windows and / or at least one of the vehicle doors is open. Preferably, the air conditioning device is capable of generating a tempered air flow which tempers the vehicle interior space. The air flow can be configured as an ambient air flow or a circulating air flow. It is also conceivable to configure the air flow as a mixture of an ambient air flow and a circulating air flow, for example for setting the air humidity and / or the oxygen content. In particular, the air conditioning device has at least one, preferably at least two, and preferably at least five air nozzles which can be set independently of one another. In particular, an air flow having at least a different temperature and / or air speed can be provided by each air nozzle. Preferably, at least one air nozzle is provided to introduce a tempered air flow into the vehicle interior space. Preferably, at least one air nozzle is provided for setting the speed and direction of the air flow. Preferably, an air nozzle is provided on each seat so that each seat can temper different body regions of the vehicle occupants differently. Alternatively, at least one air nozzle is arranged so that it can be aimed at different locations in the vehicle interior space and / or at different body regions. Preferably, at least one air nozzle is set to temper different body regions, such as the foot region, the body region, the arm region, the head region and / or other body regions which appear reasonable to the person skilled in the art, of a vehicle occupant sitting on a seat. Alternatively or additionally, the vehicle interior space can also be tempered without air flow by introducing a climate warm flow into the vehicle interior space, for example by means of seat heaters, infrared heaters, steering wheel heaters, heatable windshields and / or the like. Here, "at least substantially" is in particular to be understood as a deviation from a predetermined value of at most 25%, preferably at most 10%, particularly preferably at most 5% of the predetermined value. The term "provided" is in particular to be understood as specifically programmed, designed and / or equipped. An object is provided for a specific function, in particular, if the object realizes and / or implements the specific function in at least one application and / or operating state.

[0007] The vehicle preferably has at least one control and / or regulating unit. Preferably, the tempering of the vehicle interior is calculated and / or planned and / or regulated by means of the control and / or regulating unit. In addition, the measured data and / or the historical climate regulation data are processed with the control and / or regulating device. The control and / or regulating unit can at least partially be constituted by a control unit of the vehicle. It is conceivable that the control and / or regulating unit is provided for retrieving external information, such as weather data or similar information. Preferably, the control and / or regulating unit has at least one regulator, in particular a PID regulator, which is provided for regulating the temperature of the vehicle interior. The "control and / or regulating unit" is in particular to be understood as a unit having at least one control electronics. In particular, the "control electronics" is to be understood as a unit with a processor unit and with a memory unit and with a running program stored in the memory unit.

[0008] Preferably, the vehicle has at least one temperature sensor. Preferably, the at least one temperature sensor is arranged in the vehicle interior. The temperature sensor can be constituted as an optical temperature sensor, in particular a thermal imager or a temperature measuring inductor. Preferably, the temperature sensor is provided for detecting the temperature of the vehicle interior at least at a local position in the vehicle interior. It is conceivable that the vehicle has a plurality of temperature sensors. For example, the temperature of the vehicle interior can be constituted by the average value of the temperature measurements of the plurality of temperature sensors. It is also conceivable that each seat has at least one temperature sensor by means of which the individual temperature of each occupant can be recorded. The temperature at the local position can at least be the skin temperature of the face, the arm, at least one leg and / or similar body parts of the vehicle occupants.

[0009] Preferably, a personal temperature perception value, in particular a PMV value, is determined for all vehicle occupants. Alternatively, it is also conceivable to determine a separate PMV value for each vehicle occupant, by means of which the temperature can be set locally for each vehicle occupant. The personal temperature perception value can be described numerically by means of a PMV value (Predicted Mean Vote-Wert). For example, the PMV value can have the categories very cold (-3), cold (-2), slightly cold (-1), neutral (0), slightly warm (1), warm (2) and very warm (3). For example, in the event of a category 3 or -3, active air conditioning / temperature setting is required, since the personal temperature perception of the vehicle occupants indicates that the vehicle interior climate is particularly uncomfortable. For example, in the event of a category 1 or -1, a mild, preferably energy-saving, air conditioning can be tolerated, since the personal temperature perception of the vehicle occupants indicates that the vehicle interior climate is almost pleasant. Preferably, the vehicle interior is set to a preferred temperature by means of the air conditioning device. The preferred temperature can be configured as an average temperature of the personal temperatures of the vehicle occupants. Preferably, the vehicle interior is pre-set to at least the preferred temperature. Alternatively or additionally, each passenger can also be set to an individual temperature, for example by means of at least one air jet.

[0010] Preferably, at least the measured temperature of the vehicle interior is input into a regulator, in particular a PID regulator. Preferably, at least one set temperature is input into the regulator. The set temperature is preferably determined automatically by the control and / or regulating unit. In particular, the set temperature is calculated by means of a temperature model. In particular, the set temperature is determined in accordance with at least one personal thermal sensation value, in particular a PMV value, the state of charge of the battery, the range of the vehicle, the environmental heat flow of the vehicle and / or similar parameters. Alternatively, the set temperature can also be manually preassigned by at least one vehicle occupant. For example, at least one vehicle occupant can preassign a set temperature of "warm", "neutral" or "cold", which can be compensated by the control and / or regulating unit. Preferably, the regulator output variable is determined by the regulator, in particular the PID regulator, in accordance with at least the temperature of the vehicle interior by means of the set temperature. Preferably, the regulator output variable is configured as at least one air flow temperature supplied to the vehicle interior. Preferably, the regulator output variable output by the regulator, in particular the PID regulator, is input into a fuzzy logic as at least one input variable. Preferably, at least one personal thermal sensation value, in particular a PMV value, is determined by the fuzzy logic in accordance with the measured values, for example in accordance with the air flow speed, the air humidity, the temperature or similar values. Alternatively, at least one personal thermal sensation value, in particular a PMV value, is input into the fuzzy logic as at least one further input variable. Preferably, the regulator output variable is smoothed at least in consideration of the personal thermal sensation value, in particular the PMV value. Preferably, the regulator output variable is smoothed by at least section-wise constant setting of the regulator output variable. Preferably, the regulator output variable is smoothed by at least partial elimination of at least oscillations dependent on the regulation. The "set temperature" is to be understood here in particular as a temperature which is preferably calculated or estimated, in particular a pre-set temperature, on the basis of which a space, preferably the vehicle interior, is to be temperature-regulated. The "fuzzy logic" is to be understood here in particular as a logic for processing semantic information, wherein semantic information is converted into numerical values, in particular. The "semantic information" is to be understood here in particular as statements which require interpretation, such as warm or cold, which cannot be unambiguously assigned to true or false. In particular, the fuzzy logic has a number of pre-stored values on the basis of which an execution variable is selected, for example by means of an if-then function. Preferably, the if-then function is configured as an if-then fuzzification, which comprises at least one, preferably a plurality of simplified decision rules on the basis of which a logical conclusion is drawn from a plurality of input variables.

[0011] It is further proposed that, in addition to the temperature of the vehicle interior, at least one supply air temperature of an ambient air flow from the environment of the vehicle is taken into account in the regulation. Advantageously, due to the supply air temperature of the air flow from the environment being taken into account, in particular, a particularly high accuracy can be provided in the regulation. Advantageously, due to the supply air temperature of the ambient air flow being taken into account, in particular, a particularly high efficiency can also be provided. Preferably, the air flow is formed by a mixing of a circulation air flow and an ambient air flow. Preferably, the temperature of the air flow is taken into account. Preferably, the supply air temperature is taken into account when the air flow is tempered by the air conditioning device. In addition to the supply air temperature, the supply air humidity, the supply air oxygen content and / or similar supply air parameters which are significant for the person skilled in the art can also be taken into account. In particular, a distinction is made between the circulation air flow and the ambient air flow, whereby the tempering of the vehicle interior can be minimized. For example, the ambient air flow can be tempered at least increasingly, preferably completely, for cooling of the vehicle interior, and / or the circulation air flow can be tempered at least increasingly, preferably completely, for heating of the vehicle interior, in particular when the ambient temperature is lower than the temperature of the vehicle interior.

[0012] It is further proposed that a personal thermal sensation value, in particular a PMV value, of at least one vehicle occupant is determined taking into account at least one environmental parameter, a vehicle occupant parameter and / or a climate parameter. Advantageously, due to the environmental parameter, the vehicle occupant parameter and / or the climate parameter being taken into account, in particular, when determining the personal thermal sensation value, a high comfort can be provided. Advantageously, due to the personal thermal sensation value being able to be determined particularly accurately, in particular, by taking into account the environmental parameter, the vehicle occupant parameter and / or the climate parameter, a high accuracy can be provided in the regulation. Preferably, the environmental parameter comprises at least one solar radiation, a driving speed, a wind speed, a precipitation, a weather forecast and / or at least one further parameter which is considered to be significant by the person skilled in the art. Preferably, the vehicle occupant parameter comprises at least one skin temperature, a clothing insulation index, a metabolic index, a body mass index, a fatigue index, a stress level, a pulse, a blood sugar level, a heart rate and / or at least one further vehicle occupant parameter which is considered to be significant by the person skilled in the art. Preferably, the climate parameter comprises at least a temperature, an air humidity, an air pressure, an oxygen content of the vehicle interior and / or at least one further climate parameter which is considered to be significant by the person skilled in the art. In particular, the personal thermal sensation value, in particular the PMV value, is determined at least at regular intervals, preferably continuously. The vehicle occupant parameter is preferably recorded non-invasively.

[0013] It is further proposed that the temperature of the vehicle interior is regulated by passing at least one execution variable, in particular the fan speed, the refrigeration circuit temperature and / or the air flap position, to at least one actuator, in particular the fan, the refrigeration circuit and / or the air flap, by means of a fuzzy logic. Since the temperature can be regulated particularly well by means of the at least one execution variable, an advantageous characteristic is provided in terms of construction. In particular, the vehicle interior is tempered by means of the at least one actuator. Alternatively or additionally, the vehicle interior can be tempered on the basis of other actuators, such as on the basis of seat heaters, infrared heaters or similar devices. Preferably, the fuzzy logic takes at least one environmental parameter, a vehicle occupant parameter and / or a climate parameter into account when determining the execution variable.

[0014] It is further proposed that the number and / or the position of the vehicle occupants is determined. An advantageous complexity of the regulation can be provided, since in particular only the number and / or the position of the vehicle occupants is taken into account in the regulation. Since in particular the number and / or the position of the vehicle occupants is taken into account, a high level of comfort can be provided. Preferably, an occupancy detection is carried out. Preferably, each seat has at least one sensor, in particular a weight sensor. Preferably, the occupancy detection is carried out by means of the sensor, in particular the weight sensor. Alternatively or additionally, the occupancy detection can also be carried out by means of an optical camera. Preferably, the vehicle occupant density is determined from the number of vehicle occupants and the position of the vehicle occupants relative to one another. For example, the body size of at least one vehicle occupant can be detected by means of a weight sensor and by means of an optical camera, so that the body mass index of the at least one vehicle occupant can be calculated. Preferably, the at least one execution variable is determined at least from the number and / or the position of the vehicle occupants.

[0015] It is further proposed that, in the tempering, the heat dissipation, the carbon dioxide emission and / or the humidity load per person is estimated from the determined number of vehicle occupants and / or the position of the vehicle occupants relative to one another. An advantageous efficiency can be provided, since in particular the number of vehicle occupants and / or the position of the vehicle occupants relative to one another and the heat dissipation, the carbon dioxide emission and / or the humidity load per person are taken into account in the tempering. An advantageous level of comfort can be provided, since in particular the heat dissipation, the carbon dioxide emission and / or the humidity load per person is estimated. Preferably, the greater the vehicle occupant density, the greater the heat dissipation, the carbon dioxide and / or the humidity of the vehicle occupants. Preferably, the estimated carbon dioxide emission and / or the humidity load is used to determine the set temperature and / or the execution variable. In particular, the estimated carbon dioxide emission and / or the humidity load is input to the fuzzy logic.

[0016] It is additionally proposed that the individual thermal sensation value, in particular the PMV value, is determined for all vehicle occupants at least at regular intervals, preferably continuously. Advantageously, a high degree of accuracy can be provided since the individual thermal sensation is taken into account, in particular when the temperature of the vehicle interior is regulated. Advantageously, a high degree of comfort can be provided since the temperature of the vehicle interior can be regulated particularly accurately, in particular by determining the individual thermal sensation value at least periodically. Preferably, at least one actuating variable of the at least one actuator is determined from the individual thermal sensation value, in particular the PMV value, in the fuzzy logic. Preferably, the individual thermal sensation value, in particular the PMV value, is dependent on at least one actuating variable of the at least one actuator. The fuzzy logic is preferably configured as a MIMO regulator (Multiple Input Multiple Output). Preferably, the fuzzy logic determines at least one actuating variable from a plurality of input variables. It is conceivable that the individual thermal sensation value, in particular the PMV value, is determined for each occupant, on the basis of which at least one actuating variable, for example the setting of an air nozzle, is predefined for the at least one actuator, for example the air nozzle. Preferably, the at least one actuating variable is calculated repeatedly during the operation of the vehicle.

[0017] It is furthermore proposed that the air flow temperature for the temperature regulation of the vehicle interior is kept constant by the fuzzy logic if the deviation of the individual thermal sensation value, in particular the PMV value, of at least one vehicle occupant is at most ±0.5. Advantageously, a high degree of efficiency can be provided since, in particular, overshooting of the regulated temperature can be prevented. Advantageously, a high degree of regulation stability can be provided since, in particular, overshooting of the temperature is prevented by the fuzzy logic. Preferably, the fuzzy logic has at least a plurality of predefined values, in particular actuating variables, PMV values and / or temperature differences. Preferably, the fuzzy logic has at least an if-then function on the basis of which at least one actuating variable is selected from the predefined values. Preferably, the regulator output variable, in particular the air flow temperature, is kept constant if the PMV value is less than ±0.5. Preferably, the PMV value can be kept at zero, preferably between +0.5 and -0.5, by the predefined actuating variable, so that the regulator output variable, in particular the air flow temperature, is kept constant. Preferably, a slight negative individual thermal sensation, in particular a PMV value, which deviates by ±0.5 compared to zero, can be tolerated since temperature regulation energy can be saved by the constant temperature. It is conceivable that the PMV value can be temporarily increased to ±1, preferably to ±2, if, for example, the state of charge of the battery of the vehicle reaches a critical value.

[0018] It is further proposed that a storage occupancy and / or a personal temperature perception and / or a historical user behavior is stored. Advantageously, a low computing power can be provided since the historical user behavior can be accessed, in particular by the storage. Advantageously, a high comfort can be provided since a particularly precise and / or comfortable regulation can be provided, in particular by the historical user behavior. Preferably, the stored personal temperature perception and / or the historical user behavior can be accessed depending on a time, a day of the week, a driver profile, an occupancy and / or the like.

[0019] The method for temperature regulation according to the present application should not be limited to the above-mentioned applications and embodiments here. In particular, the method for temperature regulation according to the present application to achieve the mode of action described herein, the number of individual elements, components and units and method steps can differ from the number described herein. Furthermore, the numerical ranges given in the present disclosure should consider the values within the range described as disclosed and can be used arbitrarily. BRIEF DESCRIPTION OF DRAWINGS

[0020] Further advantages result from the following description of the figures. In the figures, an embodiment of the present application is shown. The figures and the description contain a number of features in combination. The person skilled in the art can also consider these features individually and in other combinations as meaningful.

[0021] which shows:

[0022] Figure 1 a schematic illustration of a vehicle with a vehicle interior and an air conditioning device,

[0023] Figure 2 a schematic flow chart of a method for regulating the temperature of a vehicle interior,

[0024] Figure 3 a schematic illustration of a circuit diagram of a regulating loop for regulating the temperature, and

[0025] Figure 4 a schematic illustration of a temperature profile chart of the temperature of a vehicle interior. DETAILED DESCRIPTION

[0026] Figure 1A vehicle 10 is shown. The vehicle 10 is configured as an electric vehicle. The vehicle 10 is configured as a car. Alternatively, the vehicle 10 can also be configured as a truck, a bus, a train, a ship, an airplane or a similar vehicle. The vehicle 10 has a vehicle interior 12. The vehicle interior 12 has five seats. The vehicle interior 12 can also have more or less than five seats. Each seat can be occupied by a vehicle occupant 40. Each seat has a sensor 20. The sensor 20 is configured as a weight sensor. The sensor 20 is arranged to detect a vehicle occupant 40 sitting on the seat. The sensor 20 is arranged to detect a position of a vehicle occupant 40 sitting in the vehicle interior 12. Alternatively or additionally, the sensor 20 can also be configured as an optical sensor. The sensor 20 can be configured as a camera. The camera can be arranged to detect a number of vehicle occupants 40. The camera can be arranged to detect a position of a vehicle occupant 40.

[0027] The vehicle 10 has an air conditioning device 14. The air conditioning device 14 generates an air flow. The air flow is configured as a circulating air flow, an ambient air flow or a mixture of a circulating air flow and an ambient air flow. The vehicle 10 has an actuator 68. The actuator 68 is arranged to process an execution variable 66. The vehicle 10 has five air nozzles 24. The vehicle 10 can also have more or less than five air nozzles 24. The air nozzles 24 are arranged to introduce a temperature-controlled air flow into the vehicle interior 12. The air nozzles 24 are arranged to set a direction of the air flow. The air nozzles 24 are arranged to set a speed of the air flow. At least one air nozzle 24 is provided for each seat. At least one air nozzle 24 is arranged at each seat. The air nozzles 24 are arranged to temperature-control different body regions of a vehicle occupant 40 sitting on the seat. The body regions are configured as a foot region, a body region, an arm region, a head region and / or other body regions which are considered to be of interest by a person skilled in the art. The air conditioning device 14 has a fan 16. The fan 16 is arranged to generate the air flow. The air conditioning device 14 has a refrigeration circuit 18. The refrigeration circuit 18 is arranged to temperature-control the air flow. The air nozzles 24, the fan 16 and the refrigeration circuit 18 are configured as actuators 68. It is conceivable that the vehicle 10 also has other actuators 68.

[0028] The vehicle interior 12 has a temperature sensor 32. The temperature sensor 32 is configured as a thermal camera. The temperature sensor 32 detects electromagnetic radiation in the infrared range. Alternatively, the temperature sensor 32 can also be configured as a temperature measuring sensor. The temperature sensor 32 is provided for measuring a temperature 58 in the vehicle interior 12. It is conceivable that the temperature sensor 32 is provided for measuring a temperature 58 of a vehicle occupant 40. The temperature 58 of the vehicle occupant 40 can be configured as a skin temperature of the vehicle occupant 40. The air conditioning device 14 has a control and / or regulating unit 36. The control and / or regulating unit 36 can be configured as a controller of the vehicle 10. The control and / or regulating unit 36 has a regulator 22. The regulator 22 is configured as a PID regulator. The regulator 22 is provided for regulating the temperature 58 of the vehicle interior 12. The control and / or regulating unit 36 has a fuzzy logic 64. The fuzzy logic 64 has if-then functions. The fuzzy logic 64 is provided for calculating an execution variable 66.

[0029] Figure 2 A schematic flow chart of a method for regulating a temperature 58 of a vehicle interior 12 of a vehicle 10 is shown.

[0030] In the method step 26, the temperature 58 is regulated with the regulator 22. The temperature 58 is regulated in such a way that a regulator output variable 60 is output by the regulator 22 for the temperature regulation of the vehicle interior 12. The regulator output variable 60 is calculated from the temperature 58 of the vehicle interior 12 measured by the temperature sensor 32. The regulator output variable 60 is calculated on the basis of a set temperature. The set temperature is calculated by the control and / or regulating unit 36. Alternatively, the set temperature can also be pre-defined by the vehicle occupant 40. The regulator output variable 60 is configured as an airflow temperature which is delivered to the vehicle interior 12. The vehicle interior 12 is temperature-regulated by means of the airflow temperature. The vehicle occupant 40 is temperature-regulated by means of the airflow temperature. It is conceivable that a separate regulator output variable 60 is calculated for each vehicle occupant 40. For example, a passenger can be temperature-regulated with a different airflow temperature than the driver.

[0031] In a further method step 28, the regulator output variable 60 is fed as an input variable to the fuzzy logic. In addition, environmental parameters are also fed to the fuzzy logic. The environmental parameters are detected in a measuring engineering manner or are queried from external information sources, such as a weather service. In addition, vehicle occupant parameters can also be fed to the fuzzy logic. The vehicle occupant parameters are determined by means of the sensors 20. In addition, climate parameters are fed to the fuzzy logic. The climate parameters are read or measured by the control and / or regulating unit 36. In addition, the number of vehicle occupants 40 is determined by means of the temperature sensors 32. In addition, the position of the vehicle occupants 40 in relation to one another is determined by means of the temperature sensors 32. The PMV value is then determined as a personal temperature perception value. The PMV value is determined taking into account environmental parameters. The environmental parameters include, for example, weather forecasts, solar radiation, wind speed, solar radiation, rainfall, wind force or other parameters which are considered to be of interest by the person skilled in the art. The PMV value is determined taking into account vehicle occupant parameters. The vehicle occupant parameters include, for example, a body mass index, a metabolic index, a clothing index or other parameters which are considered to be of interest by the person skilled in the art. The PMV value is determined taking into account climate parameters. The climate parameters include, for example, air temperature, air humidity, radiant heat or other parameters which are considered to be of interest by the person skilled in the art. Alternatively, the PMV value can also be determined in an upstream step and fed as a further input variable to the fuzzy logic. The PMV value is determined continuously for all vehicle occupants 40.

[0032] In another flow step 30, the input variable constructed as the air flow temperature is smoothed by the fuzzy logic according to the individual temperature perception values of the vehicle occupants 40. The air flow temperature is kept constant by the fuzzy logic as long as the deviation of the PMV value is less than ±0.5. The PMV value can be kept between ±0.5 by predefining the execution variables 66 by the fuzzy logic. One of the execution variables 66 is constructed as the fan speed of the fan 16. One of the execution variables 66 is constructed as the refrigerant circuit temperature of the refrigerant circuit 18. One of the execution variables 66 is constructed as the air damper position of the air nozzle 24. The execution variables 66 are selected from a list of predefined values. The list comprises a plurality of air flow temperature differences which are assigned to different PMV values. The selection of the execution variables 66 is based on if-then functions. In selecting the execution variables 66, the estimated carbon dioxide emissions of each vehicle occupant 12 are taken into account. In selecting the execution variables 66, the estimated humidity load caused by the vehicle occupants 40 is taken into account. Alternatively or additionally, the vehicle interior 12 can also be tempered by means of infrared heaters and / or seat heaters or other heaters which are considered to be meaningful by the person skilled in the art. Alternatively or additionally, other execution variables 66 which are considered to be meaningful by the person skilled in the art can also be predefined by other actuators. In tempering, the heat and the carbon dioxide emissions emitted by each person are estimated according to the ascertained position of the vehicle occupants 40. In tempering, the heat and the humidity load emitted by each person are estimated according to the ascertained position of the vehicle occupants 40.

[0033] In addition to the temperature 58 of the vehicle interior 12, the supply air temperature of the air flow from the environment 38 is also taken into account in the regulation. For example, if the ambient temperature is lower than the temperature 58 of the vehicle interior 12, the ambient air flow can be tempered for cooling of the vehicle interior. For example, if the ambient temperature is lower than the temperature 58 of the vehicle interior 12, the circulating air flow can be tempered for heating of the vehicle interior. Alternatively or additionally, the air humidity of the ambient air flow is taken into account.

[0034] In another method step 34, the occupancy and / or the individual temperature perception and / or the created historical user behavior are stored. It is conceivable that the stored user behavior can be accessed according to different times of day. It is conceivable that different user behaviors are stored for different drivers.

[0035] Figure 3 A schematic diagram of a circuit diagram of the regulation loop 54 for regulating the temperature 58 is shown.

[0036] The measured temperature 58 of the vehicle interior 12 is fed to the regulator 22. The measured temperature 58 can be constituted by the temperature 58 of the vehicle interior 12 and / or the temperature of the vehicle occupant 40. The set temperature 56 is transmitted to the regulator 22. The regulator 22 calculates a regulator output variable 60 from the measured temperature 58 of the vehicle interior 12 and the set temperature 56. The regulator output variable 60 is fed as an input variable to the fuzzy logic 64. The input variable is the air flow temperature. The climate parameters, the environmental parameters and the vehicle occupant parameters are fed to the fuzzy logic 64. The fuzzy logic 64 generates a current PMV value 62, which describes the personal temperature perception of the vehicle occupant 40 in numerical form. In consideration of the PMV value 62 and the input variables, the fuzzy logic 64 selects an execution variable 66 for the actuator 68. In the present embodiment, the actuator 68 is constituted by the fan 16, the cooling circuit 18 and the air nozzle 24. However, it is conceivable that, for example, in the case of temperature control, a predefined electrical power by means of a seat heater or an infrared heater or a similar execution variable 66 is selected.

[0037] Figure 4 An exemplary temperature profile diagram 52 is shown. The temperature profile diagram 52 shows a temperature profile of the air flow temperature. The temperature profile diagram 52 has an abscissa 42. The abscissa 42 has time. The temperature profile diagram 52 has an ordinate 44. The ordinate 44 has temperature. Furthermore, the PMV value is also plotted on the ordinate 44. The PMV value has an upper limit 46. The upper limit 46 is constituted by a PMV value of 0.5. The PMV value has a lower limit 48. The lower limit 48 is constituted by a PMV value of -0.5. The temperature is calculated at a PMV value of 0. The temperature is constant below the upper limit 46 and at the upper limit 46. Above the lower limit 48 and at the lower limit 48, the temperature is constant. For the sake of comparison, the temperature profile diagram 52 has an alternative temperature profile. The alternative temperature profile has a sawtooth shape. The alternative temperature profile comprises a hatched temperature range 50. The hatched temperature range 50 is constituted by the temperature control energy saved by the constant temperature profile.

Claims

1. A method for regulating the temperature (58) of the interior space (12) of a vehicle (10), wherein, The temperature (58) is regulated by a regulator (22), particularly a PID regulator, in such a way that the regulator (22) outputs a regulator output parameter (60) for temperature regulation of the vehicle interior space (12), the regulator output parameter being determined based at least on the measured temperature (58) of the vehicle interior space (12), characterized in that the regulator output parameter (60) is fed as an input parameter to fuzzy logic (64), wherein the input parameter is smoothed by the fuzzy logic (64) based at least on at least one personal temperature perception value of at least one vehicle occupant (40), particularly a PMV value (62).

2. The method according to claim 1, characterized in that, In addition to the temperature (58) of the vehicle interior space (12), the regulation also takes into account at least one supply air temperature of the ambient airflow from the environment (38) of the vehicle (10).

3. The method according to claim 1 or 2, characterized in that, The personal temperature perception value, especially the PMV value (62) of the at least one vehicle occupant (40), is obtained in consideration of at least one environmental parameter, vehicle occupant parameter and / or climate parameter.

4. The method according to any one of the preceding claims, characterized in that, The temperature (58) of the vehicle interior space (12) is adjusted by the fuzzy logic (62) transmitting at least one execution parameter (66), in particular fan speed, cooling circuit temperature and / or air baffle position, to at least one actuator (68), in particular fan (16), cooling circuit (18) and / or air nozzle (24).

5. The method according to any one of the preceding claims, characterized in that, Find the number and / or location of the vehicle occupants (40).

6. The method according to claim 5, characterized in that, In the temperature control, the heat, carbon dioxide emissions and / or humidity load emitted by each vehicle occupant are estimated based on the number of vehicle occupants (40) and / or the positions of the vehicle occupants (40) relative to each other.

7. The method according to any one of the preceding claims, characterized in that, The individual temperature perception values, especially PMV values ​​(62), are obtained for all vehicle occupants (40) at least at regular intervals, preferably continuously.

8. The method according to any one of the preceding claims, characterized in that, As long as the deviation of the personal temperature perception, especially the PMV value (62) of the at least one vehicle occupant (40), is at most ±0.5, the airflow temperature for regulating the temperature of the vehicle interior space (12) will be kept constant by the fuzzy logic (64).

9. The method according to any one of the preceding claims, characterized in that, Storage usage and / or personal temperature perception and / or creation of historical user behavior.

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