EP2148786A1 - Device for controlling the ventilation device for a motor vehicle interior - Google Patents

Device for controlling the ventilation device for a motor vehicle interior

Info

Publication number
EP2148786A1
EP2148786A1 EP20080716922 EP08716922A EP2148786A1 EP 2148786 A1 EP2148786 A1 EP 2148786A1 EP 20080716922 EP20080716922 EP 20080716922 EP 08716922 A EP08716922 A EP 08716922A EP 2148786 A1 EP2148786 A1 EP 2148786A1
Authority
EP
European Patent Office
Prior art keywords
air
sensor
air quality
characterized
quality sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20080716922
Other languages
German (de)
French (fr)
Inventor
Dubravko Barkic
Reinhold Weible
Wolfram Breitling
Maximilian Sauer
Michael Arndt
Dirk Taffe
Horst Muenzel
Matthias Ludwig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE200710018571 priority Critical patent/DE102007018571A1/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to PCT/EP2008/051963 priority patent/WO2008128800A1/en
Publication of EP2148786A1 publication Critical patent/EP2148786A1/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B60H1/00792Arrangement of detectors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00457Ventilation unit, e.g. combined with a radiator
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B60H1/00785Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models by the detection of humidity or frost
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B60H1/008Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being air quality
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00821Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
    • B60H1/00835Damper doors, e.g. position control
    • B60H1/00849Damper doors, e.g. position control for selectively commanding the induction of outside or inside air

Abstract

The invention relates to a device for controlling a ventilation device for a motor vehicle interior (36), comprising at least one air quality sensor (46) for generating an air quality signal of the air supplied to the air quality sensor (46), an actuator for adjusting an air damper (20a, 20b) of the ventilation device as a function of the air quality signal, and a ventilator (14) for transporting the air through the ventilation device into the motor vehicle interior (36). The air quality sensor (46) and the ventilator (14) form a structural unit (44).

Description

description

title

Device for controlling the ventilation device for a motor vehicle interior,

The invention relates to a device for controlling the ventilation device for a motor-vehicle interior according to the preamble of the independent claim.

State of the art

From DE 197 09 053 Al an apparatus for the ventilation control is known, which is used for pollutant-dependent control of the ventilation of an interior space. The device comprises an evaluation circuit which processes the signals of an air quality and a humidity sensor and serves in addition to the pollutant-dependent regulation of the ventilation automated safe fogging of the windshield to prevent. The air quality sensor consists of a CO and a NO sensor and detects the load of the outside air by diesel (NO) and gasoline exhaust gases (CO). In the case of an excessive load, an actuator is driven such that an air-mixing flap of a ventilation device is closed so that no fresh air, but only a circulating air operation takes place in the interior of the motor vehicle via the evaluation circuit. Since this device only detects the quality of the outside air, and thus pollutants that are already reaches the interior or to have existed there prior to detection, can no longer be detected, it is only suitable for the improvement of air inside the vehicle cabin.

EP 1422089 A2 shows a method for controlling odors and / or pollutants in the passenger compartment, in which a ventilation system of the Kraftrfahrzeugs is controlled by an air quality sensor that upon detection of odors and / or pollutants in the passenger compartment, the louver regardless of the signal of a further sensor for detecting odors and / or pollutants are opened in the outside air. As air quality sensor for detecting the quality of indoor air, for example, a CCVSensor or an infrared gas sensor is used. but alternatives are also sensors based on metal oxide semiconductors, or those that use piezoelectric surface waves generated or conductive polymers. Other principles form the quartz microbalance, gas sensitive MOSFETs, optical sensors or hybrid systems.

EP 1116613 A2 corresponding air quality sensors indicate in connection with a HVAC system (Heating, Ventilation and Air Conditioning) to use for a motor vehicle. The control of the air valve is effected, inter alia, an air condition control device depending on the air quality signals of the air quality sensors. It is also known from DE 102004051912 Al, to realize a demand recirculation control to minimize the consumption of an air conditioner. Here, fresh air is only supplied in the vehicle interior when the interior air is really consumed. This is for example the case, when the CO 2 - content in the interior air a predetermined concentration - for example, 0.25% - exceeds. Thereafter, the ventilation flap of the ventilation apparatus of the air conditioner is opened until a second concentration - for example, 0, 1% (Pettenkofer) - by the supply of fresh air is achieved. Next, the air damper is closed again, and the air conditioner can be operated in the most energetically favorable mode.

Disclosure of the Invention

The invention relates to a device for controlling a ventilation device for a motor vehicle interior, with at least one air quality sensor for generating an air quality signal of the ambient air quality sensor air, an actuator for adjusting an air flap of the ventilation device in response to the air quality signal and a fan for conveying the air through the ventilating means in the vehicle interior. Characterized in that the air quality sensor and the fan form a structural unit, there are substantial cost advantages. In addition, in a particularly advantageous manner, a significant reduction in the complexity of the overall system is achieved as a consuming wiring of the hitherto usually installed in the motor vehicle interior space below the driver or front passenger seat air quality sensors can be avoided.

Further advantages of the invention will become apparent by the features specified in the dependent claims and from the drawings and the description below.

Advantageously, the air quality sensor is integrated in an electronic motor of the fan such that it is arranged in the motor vehicle interior outside air ducts of the ventilation device. Thus, the air quality sensor, the indoor air of the vehicle interior is supplied. Since the exchange of air may be restricted behind the dashboard of the motor vehicle, it is furthermore advantageous if the fan has an additional ventilation opening to the vehicle interior, via which the air quality sensor is continuously supplied with the indoor air. This can for example be realized looking over a defined leakage between the installation space of the air quality sensor in the fan and an air guide duct of the ventilation device. To avoid due to ram pressure reverse flow of air in the additional ventilation opening of the fan, this is secured by a check valve.

In an alternative embodiment it is provided that the air quality sensor, is integrated into the fan such that it detects the air quality of the guided within the air ducts of the air ventilation device. Characterized in that the air quality sensor is arranged in this case of flow behind the designed as an air mixing damper for adjusting a defined air-circulating fresh air ratio air damper, it can be directly or indirectly monitor both the indoor air as well as the externally supplied fresh air.

Because the engine electronics of the fan as a common evaluation and control electronics for the integrated air quality sensor and electrically connected with the structural unit actuator is used, there are advantageous synergy effects which cause a simplification of the electronics and thus an improvement in their reliability. For this purpose, the structural unit has a common interface by means of which it exchanges data with at least a higher-level control device, in particular an air-conditioning control unit, and the actuator and thus acts as an intelligent subsystem. Data exchange can take place via a motor vehicle bus system, such as a LIN bus. - A -

Furthermore, the interface can also be used to power the structural unit.

In conjunction with an activated air conditioner, the engine electronics controls the actuator by means of a data stored in its evaluation and control algorithm now such a way that the air quality sensor is adjusted depending on the air quality signal to the greatest possible value is always surrounded by a proportion of recirculated air. Alternatively, however, it may also be of advantage when the air quality sensor as a function of the air quality signal of the air quality sensor is surrounded for a defined period of time either exclusively fresh air or an air-circulating fresh air mixture, wherein the control electronics to the actuator before and / or after the defined time period then controls such that the air quality sensor is exclusively surrounded by ambient air. A combination of these two control strategies are conceivable.

As air quality sensor, a gas sensor and / or a humidity sensor can be used. Here, as a gas sensor is a spectroscopic gas sensor, in particular a CO 2 - conceivable, CO, NOx sensor or the like, or a gas sensor. In this way it is possible to detect a wide variety of pollutants or odors in indoor air.

drawing

The invention is illustrated by way of example with reference to the figures 1 to 6, wherein like reference numerals indicate like elements in the figures on a same operation. The figures of the drawing, the description and the claims contain numerous features in combination. A specialist will also consider these features individually and combine them to form further reasonable combinations. In particular, a skilled person will also combine the features of different exemplary embodiments to further meaningful combinations.

Show it

Fig. 1 is a schematic representation of a prior art HVAC system in a lateral section through an instrument panel of a motor vehicle, Fig. 2: a first and a second exemplary embodiment of a known arrangement of one or two louvers for controlling an air-circulating fresh mixture,

Fig. 3 is a schematic representation of a first embodiment of the structural unit of the invention,

Fig. 4 is a schematic representation of a second embodiment of the structural unit of the invention,

Fig. 5: a schematic representation of a third embodiment of the structural unit of the invention, and

FIG. 6 shows a block diagram of the structural unit of the invention for controlling a mechanically connected with an air damper actuator.

1 shows a lateral section through an instrument panel 10 of a motor vehicle, not shown. Evident is a known to the expert HVAC system (Heating, Ventilation and Air Conditioning) 12 comprising, inter alia, a ventilation device 13, which consists of a fan 14, an evaporator 16, a heating element 18, various air ducts 19 as well as in the air ducts 19 arranged dampers, which operate as air-mixing flaps 20, 22 and louvers 24, is. By arrows, the path of the fresh air 26 and the ambient air 28 through the air ducts 19 of the ventilation device 13 is characterized. In this case, a corresponding air-circulating fresh air mixture can be controlled or regulated by means of the air mixing damper 20th It should be noted that the skilled person, although the differences between a controller and a system are known, for simplicity, however, only the concept of control is to be used in the following without limiting the invention thereby to this functionality. It therefore goes without saying that the invention, in particular due to the later explained in detail air quality sensors, also relates to a control. the air-mix door 20 is in the shown with a solid line, fresh air position, the HVAC system 12 is operating in the fresh air mode. The fan 14 sucks the penetrating from the outside through a that are available in front of a windshield 30 vent slot 32 in the motor vehicle for fresh air 26 and conveys it to the evaporator 16, in turn, via terminals 16a and 16b of the in a closed refrigerant center oil circuit of a not shown in detail air conditioning HVAC system is integrated 12th By means of the evaporator 16, it is possible in a known manner, the cooling air flowing through it and / or dehumidify, wherein the precipitating end at the evaporator 16 water content can be discharged via a dewatering 17th Since the operation of an air conditioner is generally known to those skilled in the individual, not shown here, the components of the refrigerant circuit (such as compressor, condenser, expansion device, etc.), will not be discussed in detail.

After the fresh air has 26 flows through the evaporator 16, it is possible, by flow through ports 18a and 18b, and a hot water shutoff valve 19 heating element connected to a not-shown heating circuit 18 for the purpose of heating by means of a further air mixing damper 22 to to let. In the example shown in Figure 1 case, the more the air mixing damper 22 is in the shown with a solid line heating position. A detailed description of the heating elements connected to the heating circuit 18 will be omitted because it is the skill of the art. If, however, a pure cooling or fresh air mode is requested, the more the air mixing damper can be moved in the direction indicated by a dotted line position 22 so that the fresh air is directed past the heater 18 26th Then delivers the corresponding untreated, cooled or heated fresh air 26 to the louvers 24 passing through vents 34 in the motor vehicle interior 36th

If the air mixing damper 20 placed in the position shown by a dashed line circulating air position, so instead of the fresh air 26 circulating air 28 is conveyed through the ventilation means 13 of the HVAC system 12 and the vehicle cabin 36 by the fan fourteenth This is particularly useful when pollutants or odors are in the air outside the motor vehicle. Moreover, the energy consumption of the air conditioner can be reduced in the recirculation mode, as located in the vehicle interior 36, already cooled and dehumidified air can be led past the evaporator 16 again, and hence has a smaller temperature difference from the evaporator temperature than would be the case with the fresh air 26th In this way, substantial fuel savings compared to the fresh air mode can be achieved especially in hot weather.

2 shows two alternative embodiments according to the prior art, for setting a desired air-circulating fresh air mixture. a joint arranged in the air duct 19 air 2a shows this corresponding to Figure 1 mixing flap 20 is used, the ambient air 28 and (which the fan 14 in the illustrated forced-air position (see. the dashed line shown in Figure 1) in the corresponding fresh air position supplying see. the shown in solid line in Figure 1), the fresh air 26 so that it conveys the resulting air via a further air duct 19 to the evaporator 16 (see Figure 1). the air-mix door 20 is in a position between the circulating air and the fresh air position, a corresponding air-circulating fresh air mixture is sucked in by the fan fourteenth The transported by the fan 14 air also serves to cool motor electronics 38, which is located below a to be recognized in Figure 2 the cooling element. 39 2b shows a view similar to Figure 2a with two operation in the air duct 19 arranged air-mixing flaps 20a and 20b which can be separately controlled to achieve the desired air-circulating fresh air mixture. The air-mixing flaps 20, 20a, 20b are each controlled via a not shown in the figure 2 the actuator 40 (see FIG. 6) fixed for rotation with a pivot axis 42 of the air mixing door 20, 20a, 20b connectable outside the air ducts 19 is. However, it is alternatively also possible that the two air-mixing doors 20a and 20b are coupled mechanically and are driven by a common actuator 40th

In accordance with Figure 2b in figure 3, a first embodiment of a building unit 44 according to the invention is shown, which consists of the fan 14 and an air quality sensor 46, wherein the air quality sensor is mounted on a housing cover 50 of the engine electronics 38 46th Alternatively, it is also possible to integrate the air quality sensor 46 in the housing cover 50 so that it serves as a common housing for the air quality sensor 46 and the engine electronics 38th The electrical contact between the air quality sensor 46 and the engine electronics 38 for the purpose of data exchange and energy supply takes place via a corresponding, not shown, plug or cable connection, wherein the structural unit 44 52 data (with a higher-level control unit 54 by means of a common interface see FIG. 6), in particular an air-conditioning control unit 56 that exchanges.

The structural unit 44 is according to FIG 1 fluidically behind the two in the air duct 19 arranged air-mixing flaps 20a and 20b with which a desired, resulting from the fresh air 26 and recirculated air 28 fresh air recirculated air mixture can be adjusted. The air quality sensor 46 is arranged outside the air ducts 19 in the vehicle interior 36, so that the indoor air is supplied to it via corresponding inlets 48th However, since it may due to design come behind the dashboard of the motor vehicle to limited air circulation, the fans 14 for better air supply to the air quality sensor 46 is an additional ventilation opening 58 between the installation space of the air quality sensor 46 and the air duct 19 of the ventilation device 13.

Figure 4 shows in accordance with Figure 2a shows a second embodiment of the structural unit 44 according to the invention in a lateral section through the fan 14 and the air mixing damper 20 having air duct 19. The fan wheel of the fan 14 is here only schematically indicated. Because of the fan electric motor driving of secondary importance for the invention is, of clarity has also waived his performance to increase. The air quality sensor 46 is arranged here 38 under the housing cover 50 of the engine electronics, wherein, so that the indoor air is supplied to it to be air inlet 48 is in the motor vehicle interior 36th Also in this case, the additional ventilation opening 58 is provided for better air supply to the air quality sensor 46 again. A zero-pressure-induced flow reversal of the air in the additional ventilation opening 58 to avoid this further has a non-return valve 60th

In an alternative embodiment, the air quality sensor 46 is so integrated into the fan 14, that it detects the air quality of the air contained within the air ducts 19 of the ventilation device. 13 For this purpose, has the air quality sensor 46 via inlets 48a (shown in dashed lines in Figure 4) which enable a direct or indirect supply of which located in the air duct 19 circulating air 28 and / or fresh air 26th On the air inlets directed into the interior space 48, the additional ventilation opening 58 and the check valve 60 can be omitted in this case. A corresponding embodiment is shown in FIG 5, wherein the air quality sensor, however, is now attached with its 46 directed into the air duct 19 air inlets 48 on the disposed in the air duct 19 cooling element 39 of the engine electronics 38th

Figure 6 shows a block diagram of the structural unit 44. invention This consists - as already explained above - from the fan 14, the air quality sensor 46, the engine electronics 38 and the common interface 52. The motor electronics 38 communicates via the common interface 52 with the air-conditioning - control unit 62 formed, the higher-level control unit 64. In this case, the unidirectional or bidirectional exchange of data via a vehicle bus system 66, such as a LIN bus 68 takes place so that the structural unit 44 as an intelligent subsystem of the HVAC system operates 12th Further, 38 the engine electronics receives an air quality signal 70 from the air quality sensor 46, which is a measure of the pollutant or odor contamination of the interior air circulation or 28 and / or the outside or fresh air 26th The data connection between the motor electronics 38 and air quality sensor 46 may also be performed uni- or bi-directional, so that it is possible, 46 to calibrate the air quality sensor by means of ECU 38 to drive or otherwise. Finally, the engine electronics 38 controls on the basis of the air quality signal 70 and / or received from the master control device 64 data to the actuator 40, the rotationally fixed in known manner to the pivot axis 42 of the corresponding air shutter 20, 20a, 20b, 22, 24 is connected. Also the data connection between the motor electronics 38 and the actuator 40 may be performed bi-directionally in order to obtain, for example, a feedback on the current position of the air mixing damper 20th

The motor electronics 38 includes an evaluation and control algorithm, the air-mixing door controls on the basis of the actuator 40 is activated air conditioner 20 such that the air quality sensor located in the vehicle interior 36 is 46 always surrounded by a proportion of recirculated air. Depending on the air quality signal 70, ie for meadow from the CCVGehalt the indoor air, the engine electronics 38 then the air-mix door 20 to the maximum possible value for the proportion of recirculated air a. At the same time the engine electronics 38 must ensure that it does not come to a dynamic pressure caused by reverse flow in the air duct 19 for the circulating air intake for example under a control or regulating technical consideration of the vehicle speed or the optimum operating point of the fan fourteenth In an alternative control strategy may be provided that the motor electronics 38 to the actuator 40 drives with activated air conditioner such that the air quality sensor 46 as a function of the air quality signal 70 for a defined period of time (eg 5 minutes) either solely by the fresh air 26 or a forced air fresh air mixture is unströmt, wherein the proportion of recirculated air before and / or after this is defined time span in each case 100%. This sequence can be repeated several times as a function of the air quality signal 70 at certain intervals. Moreover, it is possible to combine the two control strategies described appropriately.

As air quality sensor 46, a gas sensor 72, a smell sensor 73 and / or a humidity sensor 74 may be used. In this way it is possible to detect a wide variety of pollutants or odors in indoor air. In the case of a gas sensor 72 is a spectroscopic gas sensor, in particular a CO 2, for example, -, CO, NOx sensor or the like are conceivable. Alternatively or in combination also can be a gas sensor, a gas sensor on metal oxide semiconductor base, a gas sensor based on a field effect transistor, an optical gas sensor or a gas sensor based on the use of surface waves or resonant vibrations, such as a quartz structure, are used wherein the structure of such sensors is known in the art and need no further explanation here. The same applies to the odor sensor 73 and the humidity sensor 74th

It should finally be pointed out that the invention is neither to the shown embodiment according to the figures 1 to 6, in particular the spatial design of the HVAC system 12 or the fan 14, nor to the aforementioned values ​​for the defined period of time or certain air quality concentrations or recirculated air fresh air conditions is limited.

Claims

claims
1. An apparatus for controlling a ventilation device (13) for a motor vehicle interior (36), with at least one air quality sensor (46) for generating an air quality signal (70) of air to the air quality sensor (46) surrounding an actuator (40) for adjusting an air flap ( 20, 20a, 20b, 22, 24) of the ventilation device (13) as a function (of the air quality signal 70) and a fan (14) for the transport of air through the ventilation device (13) in the motor vehicle interior (36), characterized in that form the air quality sensor (46) and the fan (14) a structural unit (44).
2. Device according to claim 1, characterized in that the air quality sensor (46) is integrated into a motor electronics (38) of the fan (14) such that he arranged in the motor vehicle interior (36) outside of air guide channels (19) of the ventilation device (13) is.
3. A device according to any one of claims 1 or 2, characterized in that the air quality sensor (46) of air supplied to the interior air of the motor vehicle interior (36).
4. Apparatus according to claim 3, characterized in that the fan (14) having an additional ventilation opening (58) for motor vehicle interior (36) through which the air quality sensor (46) is continuously supplied with the indoor air.
5. Device according to claim 4, characterized in that the additional ventilation opening (58) through a non-return valve (60) is secured against a reverse flow of the air.
6. Device according to claim 1, characterized in that the air quality sensor (46) into the fan (14) integrated in such a way that it detects the air quality within the Luftführangskanälen (19) of the ventilation device (13) guided air.
7. Apparatus according to claim 6, characterized in that the air quality sensor (46) fluidically behind the designed as an air mixing damper for adjusting a defined convection ratio fresh air flap (20, 20a, 20b).
8. Device according to one of the preceding claims, characterized in that the constructional unit (44) through a common interface (52) has, by means of which it exchanges data with a superordinate control unit (62).
9. The device according to claim 8, characterized in that the data exchange between the common interface (52) of the structural unit (44) and the su- perior control unit (62) via a vehicle bus system (66), in particular a LIN bus (68) , he follows.
10. Device according to one of the preceding claims, characterized in that the motor electronics (38) of the fan (14), with an activated air conditioning controls the actuator (40) such that the air quality sensor (46) is always surrounded by a proportion of recirculated air, which in depending on the air quality signal (70) is set to the maximum value.
11. Device according to one of the preceding claims 1 to 9, characterized in that the motor electronics (38) of the fan (14), with an activated air conditioning controls the actuator (40) such that the air quality sensor (46) in response to the Luftgüteseignal ( 70) of the air quality sensor (46) for a defined period of time is either surrounded exclusively by fresh air or a forced air-fresh air mixture.
12. The apparatus according to claim 11, characterized in that the motor electronics (38) drives the actuator (40) is activated air conditioner such that the air quality sensor (46) before and / or after the defined time period only by circulating air (28) is surrounded.
13. Device according to one of the preceding claims, characterized in that the air quality sensor (46) is a gas sensor (72), an odor sensor (73) and / or a humidity sensor (74).
14. The apparatus according to claim 13, characterized in that the gas sensor (74) is a spectroscopic gas sensor, in particular a CO 2 -, CO, NOx sensor or the like.
15. The device anch claim 13, characterized in that the gas sensor (74) resonant a gas sensor, a gas sensor on metal-oxide-semiconductor base, a gas sensor based on a field effect transistor, an optical gas sensor or a gas sensor based on the use of surface waves or is vibrations, for example, a quartz structure.
EP20080716922 2007-04-18 2008-02-19 Device for controlling the ventilation device for a motor vehicle interior Withdrawn EP2148786A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE200710018571 DE102007018571A1 (en) 2007-04-18 2007-04-18 Device for controlling the ventilation device for a motor vehicle interior,
PCT/EP2008/051963 WO2008128800A1 (en) 2007-04-18 2008-02-19 Device for controlling the ventilation device for a motor vehicle interior

Publications (1)

Publication Number Publication Date
EP2148786A1 true EP2148786A1 (en) 2010-02-03

Family

ID=39496095

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080716922 Withdrawn EP2148786A1 (en) 2007-04-18 2008-02-19 Device for controlling the ventilation device for a motor vehicle interior

Country Status (5)

Country Link
US (1) US20100144261A1 (en)
EP (1) EP2148786A1 (en)
CN (1) CN101657335A (en)
DE (1) DE102007018571A1 (en)
WO (1) WO2008128800A1 (en)

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