# US 2010/0144261 A1 · Device for controlling the ventilation apparatus for a motor vehicle interior > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0144261 A1 - Document ID: US20100144261A1 - Status: Published application - Kind: A1 - Application number: 12/596,155 - Filed: 2008-02-19 - Published: 2010-06-10 - Earliest claimed: 2007-04-18 - Assignees: Robert Bosch GmbH - Inventors: Dubravko Barkic; Reinhold Weible; Wolfram Breitling; Maximilian Sauer; Michael Arndt; Dirk Taffe; Horst Muenzel; Matthias Ludwig - Web page: https://patentgrep.com/patent/US20100144261A1 ## CPC - B60H 1/00792: {Arrangement of detectors (B60H1/00742, B60H1/0075, B60H1/00785 take precedence)} - B60H 1/00457: {Ventilation unit, e.g. combined with a radiator (control systems for ventilators B60H1/00828)} - B60H 1/00785: {by the detection of humidity or frost} - B60H 1/008: {the input being air quality} - B60H 1/00849: {for selectively commanding the induction of outside or inside air (B60H1/00842 takes precedence)} - B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES ## 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). ## Claims ### Claim 1 A device for controlling a ventilation apparatus (13) for a motor vehicle interior (36), having at least one air quality sensor (46) for generating an air quality signal (70) of the air surrounding the air quality sensor (46), an actuator drive (40) for adjusting an air flap (20, 20a, 20b, 22, 24) of the ventilation apparatus (13) as a function of the air quality signal (70) and a fan (14) for transporting the air into the motor vehicle interior (36) through the ventilation apparatus (13), characterized in that the air quality sensor (46) and the fan (14) form one structural unit (44). ### Claim 2 (depends on 1) The device as claimed in claim 1, characterized in that the air quality sensor (46) is integrated into the motor electronics (38) of the fan (14) in such a way that it is arranged in the motor vehicle interior (36) outside air ducts (19) of the ventilation apparatus (13). ### Claim 3 (depends on 1) The device as claimed in claim 1, characterized in that the air supplied to the air quality sensor (46) is the interior air of the motor vehicle interior (36). ### Claim 4 (depends on 3) The device as claimed in claim 3, characterized in that the fan (14) has an additional ventilation opening (58) to the motor vehicle interior (36), via which additional ventilation opening (58) the air quality sensor (46) is continuously supplied with the interior air. ### Claim 5 (depends on 4) The device as claimed in claim 4, characterized in that the additional ventilation opening (58) is protected against a flow reversal by a nonreturn valve (60). ### Claim 6 (depends on 1) The device as claimed in claim 1, characterized in that the air quality sensor (46) is integrated into the fan (14) in such a way that said air quality sensor (46) detects the quality of the air conducted within air ducts (19) of the ventilation apparatus (13). ### Claim 7 (depends on 6) The device as claimed in claim 6, characterized in that in terms of flow the air quality sensor (46) is arranged downstream of the air flap (20, 20a, 20b) which is embodied as an air mixer flap for setting a defined recirculated air/fresh air ratio. ### Claim 8 (depends on 1) The device as claimed in claim 1, characterized in that the structural unit (44) has a common interface (52) by means of which it exchanges data with a superordinate control device (62). ### Claim 9 (depends on 8) The device as claimed in claim 8, characterized in that the exchange of data between the common interface (52) of the structural unit (44) and the superordinate control device (62) takes place via a motor vehicle bus system (66), in particular an LIN bus (68). ### Claim 10 (depends on 1) The device as claimed in claim 1, characterized in that when an air conditioning system is activated, the motor electronics (38) of the fan (14) actuate the actuator drive (40) in such a way that the air quality sensor (46) is always surrounded by a recirculated air portion which is set to the largest possible value as a function of the air quality signal (70). ### Claim 11 (depends on 1) The device as claimed in claim 1, characterized in that when an air conditioning system is activated, the motor electronics (38) of the fan (14) actuate the actuator drive (40) in such a way that the air quality sensor (46) is surrounded for a defined time period either exclusively by fresh air or by a recirculated air/fresh air mixture as a function of the air quality signal (70) of the air quality sensor (46). ### Claim 12 (depends on 11) The device as claimed in claim 11, characterized in that when the air conditioning system is activated, the motor electronics (38) actuate the actuator drive (40) in such a way that the air quality sensor (46) is surrounded exclusively by recirculated air (28) before and/or after the defined time period. ### Claim 13 (depends on 1) The device as claimed in claim 1, characterized in that the air quality sensor (46) is a gas sensor (72), a smell sensor (73) and/or a moisture sensor (74). ### Claim 14 (depends on 13) The device as claimed in claim 13, characterized in that the gas sensor (74) is a spectroscopic gas sensor, in particular a CO2 sensor, CO sensor, NOx sensor or the like. ### Claim 15 (depends on 13) The device as claimed in claim 13, characterized in that the gas sensor (74) is a chemical gas sensor, a gas sensor on a metal oxide semiconductor basis, a gas sensor on the basis of a field effect transistor, an optical gas sensor or a gas sensor on the basis of the utilization of surface waves or resonant oscillations, for example of a quartz structure.