System and method for controlling air quality in a passenger compartment

Abstract

Method (300) for controlling air quality in a passenger compartment (38), the method (300) comprising: Output of one or more control signals by a processor to activate a motor, wherein the motor is operable to drive a blower (34) to generate an airflow for observation by a sensor (36) for fine solid particles, wherein the sensor (36) for fine solid particles generates sensor signals based on observation; Determining the concentration level of fine solid particles in the airflow based on sensor signals; and Outputting one or more control signals to an air quality system (16) connected to the passenger compartment (38) to generate an airflow into the passenger compartment (38) based on the determined concentration level, wherein the airflow into the passenger compartment (38) passes through a fine solid particle filter (50); Receiving and processing first filter sensor signals from a first filter sensor (24) connected to the filter (50) for fine solid particles; Receiving and processing second filter sensor signals from a second filter sensor (26) connected to the filter (50) for fine solid particles, wherein the second filter sensor (26) is located downstream of the first filter sensor (24); Determining a filter status based on the processing of the first filter sensor signals and the second filter sensor signals; and Output of a filter message to at least one user interface (18) in conjunction with the passenger compartment (38) based on the specified filter status; Determining an air quality level based on the determined concentration level; and Output of the specified concentration level and the specified air quality level to at least one user interface (18) in conjunction with the passenger compartment (38), wherein the at least one user interface (18) is in conjunction with a cover (202) which is arranged inside the passenger compartment (38).

Description

TECHNICAL AREA

[0001] The present disclosure relates generally to vehicles and in particular to a system and a method for controlling the air quality in a passenger compartment of a vehicle.

[0002] Air quality can vary across environments due to environmental characteristics. For example, air quality in a densely populated area may differ from air quality in a rural area. Similarly, air quality in an industrial area may differ from air quality in an agricultural area. In certain environments, the air surrounding a vehicle may contain levels of particulate matter (PM10) or solid particles that can enter the vehicle's passenger compartment and alter the air quality inside. These levels can vary depending on the characteristics of the surrounding environment. In many cases, occupants are unaware of PM10 levels in the passenger compartment due to the generally microscopic size of the particles.

[0003] Therefore, it is desirable to provide an air quality control system in the passenger compartment of a vehicle that determines the level of particulate matter or solid particles in the passenger compartment. It is also desirable to provide a system and a method for controlling the air quality in a passenger compartment based on the determined level of particulate matter. Other desirable features and characteristics of the present invention will become apparent from the following detailed description and the accompanying claims in conjunction with the associated drawings and the preceding technical field and general prior art.

[0004] DE 60 2004 013 065 T2 relates to a vehicle heating, ventilation and air conditioning (HVAC) system with an air quality sensor and an air supply control valve and, in particular, an improved method for operating the air supply control valve.

[0005] US 2015 / 0360544A1 describes an air purification unit for regulating air quality inside the vehicle, an indoor air quality monitoring unit for monitoring air quality inside the vehicle, and an outdoor air quality monitoring unit for monitoring air quality outside the vehicle.

[0006] US 2016 / 0280160A1 describes a vehicle with particle sensors configured to generate particle data indicating the size and quantity of the environment.

[0007] US 2016 / 0318368A1 specifies mechanisms for controlling air quality in a vehicle interior. Air quality data is received from a vehicle-mounted sensor and at least one sensor from another vehicle, an external environmental sensor, or a remotely located information source system.

[0008] US Patent 6,758,739 B1 describes an air quality system for controlling air quality in a vehicle. The air quality system uses three air quality sensors to measure three air quality parameters. A controller responds to the air quality sensors. SUMMARY

[0009] The object of the invention is to provide an improved air quality control system. This object is achieved by the subject matter according to claims 1 and 6. Further developments are described in the dependent claims.

[0010] In one embodiment, a method for controlling air quality in a passenger compartment is provided. The method includes outputting one or more control signals by a processor to activate a motor to generate an airflow for observation by a fine particulate matter sensor, wherein the fine particulate matter sensor generates sensor signals based on the observation; determining a concentration level of fine particulate matter in the airflow based on the sensor signals; and outputting one or more control signals to an air quality system connected to the passenger compartment to generate an airflow into the passenger compartment based on the determined concentration level, wherein the airflow passes through a fine particulate matter filter into the passenger compartment.

[0011] In one embodiment, an air quality control system is provided for a passenger compartment. The air quality control system includes a fine particulate matter (PMP) sensor system. The PMP sensor system includes a motor that can be operated to drive a fan to generate an airflow for observation by the PMP sensor, wherein the PMP sensor generates signals based on the observation. The air quality control system includes an air quality system connected to the passenger compartment. The air quality system includes a fine particulate matter filter and a heating, ventilation, and cooling (HVAC) system that can be operated to generate an airflow through the fine particulate matter filter and into the passenger compartment.The air quality control system also includes a control module that outputs one or more control signals to the motor of the fine particulate matter sensor system to drive the blower, receives and processes the sensor signals, determines a concentration level of fine particulate matter based on the processing, and outputs one or more control signals to the heating, ventilation, and cooling system to generate the airflow based on the determined concentration level. DESCRIPTION OF THE DRAWINGS

[0012] The exemplary embodiments are described below in conjunction with the following drawing figures, where identical numbers denote identical elements, and where: Fig. 1 a functional block diagram of a vehicle with a passenger compartment incorporating an air quality control system, according to various embodiments; Fig.2 a schematic perspective view of a section of the passenger compartment of the vehicle Fig. Figure 1 illustrates an exemplary position for a fine dust sensor system according to various embodiments; Fig. 3 a schematic rear view of the fine dust sensor system Fig. 2 is; Fig. 4 a schematic perspective view of a section of an air quality system including a heating, ventilation and cooling (HVAC) system for the vehicle Fig. 1 according to different embodiments; Fig. 4A a schematic perspective view of a section of the vehicle's air quality system Fig. 1 according to different embodiments; Fig. 4B a schematic perspective view of an exhaust and temperature control system of the vehicle's air quality system Fig. 1 according to different embodiments; Fig. 5 a perspective view of a section of the air quality system from Fig. Figure 4 illustrates a filter sensor system and a filter for fine solid particles; Fig. 6. An exemplary instrument panel user interface for the vehicle. Fig. 1 according to different embodiments; Fig. 7 an exemplary heating, ventilation and cooling (HVAC) user interface for the vehicle Fig. 1 according to different embodiments; Fig. 8 an exemplary aperture user interface for the vehicle Fig. 1 according to various embodiments, which shows the aperture in a first position; Fig. 9 an exemplary aperture user interface for the vehicle Fig. 1 according to various embodiments, which shows the aperture in a second position; Fig.10 is a data flow diagram that represents a control system of the air quality control system. Fig. 1 illustrated according to different embodiments; Fig. 10A is a data flow diagram that represents an observation system of the air quality control system. Fig. 1 illustrated according to different embodiments; Fig. 11 is a flowchart that shows a control procedure of the cell air quality system. Fig. 1 illustrated according to different embodiments; Fig. 12 a continuation of the flowchart from Fig. 11 is; Fig. 13 a continuation of the flowchart from Fig. 12 is; and Fig. 14 is a flowchart that shows another control procedure of the cell air quality system. Fig. 1 illustrated according to different embodiments. DETAILED DESCRIPTION

[0013] The following detailed description is purely exemplary and is not intended to restrict the application or its use. Furthermore, no binding effect is intended on any express or implied theory presented in the preceding technical section, the prior art, the abstract, or the following detailed description.As used herein, the term module refers to any hardware, software, firmware, electronic control component, processing logic and / or processor device, individually or in any combination, including, without limitation, an application-specific integrated circuit (ASIC), an electronic circuit, a processor (shared, dedicated or as a group) and memory executing one or more of software or firmware programs, a combinational logic circuit and / or other suitable components providing the described functionality.

[0014] Embodiments of the present disclosure may be described herein with respect to functional and / or logical block components and various processing steps. It should be noted that such block components may be implemented by any number of hardware, software, and / or firmware components designed to perform the specified functions. For example, an embodiment of the present disclosure may employ various integrated circuit components, such as memory elements, digital signal processing elements, logic elements, lookup tables, or the like, which can perform a variety of functions under the control of one or more microprocessors or other control devices.Furthermore, the person skilled in the art will recognize that embodiments of the present disclosure can be implemented in connection with any number of systems and that the air quality control system described herein is only one embodiment of the present disclosure.

[0015] For the sake of brevity, conventional techniques relating to signal processing, data transmission, signaling, control, and other functional aspects of the systems (and the individual operating components of the systems) may not be described in detail herein. Furthermore, the connecting lines shown in the various figures contained herein are intended to represent exemplary functional relationships and / or physical connections between the various elements. It should be noted that in an embodiment of the present disclosure, many alternative or additional functional relationships or physical connections may exist.

[0016] With reference to Fig.Figure 1 shows an example of a vehicle 10 with an air quality control system 12. The air quality control system 12 controls the quality of air within a cell of the vehicle 10 based on sensor signals received from one or more sensors 14. In various embodiments, the air quality control system 12 includes the one or more sensors 14, an air quality system 16, at least one user interface 18, and a module 20 for controlling the cell air quality. One or more of the one or more sensors 14, the air quality system 16, and the at least one user interface 18 are arranged in a passenger cell 38 of the vehicle 10 so that they are accessible to a passenger or occupant of the vehicle 10 and / or to monitor one or more conditions within the passenger cell 38.Although the figures shown herein represent an example with specific arrangements of elements, an actual embodiment may include additional intervening elements, devices, features, or components. It should also be understood that... Fig. Figure 1 is for illustrative purposes only and may not be drawn to scale. It should be noted that the air quality control system 12 can be used with any suitable vehicle, e.g., an aircraft, ship, train, motor vehicle, etc.

[0017] In various embodiments, the one or more sensors 14 comprise a particulate matter sensor system 22 and a filter sensor system 25, which includes a first filter sensor 24, a second filter sensor 26, and a filter sensor monitoring module 27. The one or more sensors 14 also include a first chemical sensor 28 and a second chemical sensor 30. The particulate matter sensor system 22 includes a sensor motor 32, a fan or blower 34, and a particulate matter sensor 36. With reference to Fig.In one example, the particulate matter sensor system 22 is connected to a section of the vehicle 10 within the passenger compartment 38 of the vehicle 10. For instance, the particulate matter sensor system 22 is connected to a side panel 40 of a console 42. It should be noted that the particulate matter sensor system 22 can be connected to any desired location within the vehicle 10 and that the connection of the particulate matter sensor system 22 to the console 42 is merely exemplary. The particulate matter sensor system 22 is connected to the side panel 40 of the console 42 such that it is located within a cavity 44 defined by the console 42, as shown in Fig.Figure 3 shows that the sensor motor 32, the fan or blower 34, and the particulate matter sensor 36 can be implemented as a single particulate matter sensor unit housed in the cavity 44. The cavity 44 is in fluid communication with the passenger compartment 38 via an opening 46 defined by the shape of the side panel 40.

[0018] With renewed reference to Fig. 1 The sensor motor 32 comprises a small electric motor, such as a DC motor or another type of motor, which responds to one or more control signals from the module 20 for controlling cell air quality. The sensor motor 32 is connected to the module 20 for controlling cell air quality via a communication architecture 48, which enables the transmission of power, data, commands, etc. The sensor motor 32 includes an output shaft (not shown) that is connected to the blower 34. With reference to Fig.In the following example, the blower 34 is generally connected to the sensor motor 32 and arranged within the cavity 44, such that the operation of the blower 34 draws air into the cavity 44 for observation by the fine dust sensor 36. In one example, the blower 34 is arranged adjacent to the side panel 40 and draws air into the cavity 44 for observation by the fine dust sensor 36. The blower 34 generally comprises one or more blades connected to a rotor, which rotate when receiving torque from the sensor motor 32 to direct or draw air into the cavity 44 through the opening 46. Upon receiving one or more control signals from the module 20 for controlling the cell air quality, the sensor motor 32 drives the blower 34 via the output shaft (not shown) to draw air into the cavity 44 for observation by the fine dust sensor 36.

[0019] The particulate matter sensor 36 observes air flowing through the opening 46 and the cavity 44 and generates sensor signals based on this observation. In this example, the particulate matter sensor 36 is an air quality sensor that observes the air flowing through the cavity 44 and determines the amount of particulate matter or fine solid particles contained in the airflow. The particulate matter sensor 36 can, for example, measure PM10. 2,5 -Sensor that can detect the concentration of fine solid particles with a size of less than 2.5 micrometers (PM) 2,5 ), which are present in the airflow. In one example, the fine dust sensor 36 determines a PM100. 2,5 -Concentration level in the airflow through the cavity 44 using a laser scattering theory. In certain embodiments, the fine dust sensor 36 determines a PM 2,5-Concentration level in the airflow through cavity 44 is measured using an infrared emitting diode (IRED) and a phototransistor. The sensor signals from the fine dust sensor 36 are transmitted via the communication architecture 48 to the module 20 for controlling the cell air quality.

[0020] The filter sensor system 25 includes the first filter sensor 24 and the second filter sensor 26, each connected to the first filter sensor monitoring module 27 via a communication architecture 29 that enables the transmission of power, data, commands, etc. The filter sensor monitoring module 27 is connected to the module 20 for controlling cell air quality via the communication architecture 48. With reference to Fig.In section 4, the first filter sensor 24 and the second filter sensor 26 are connected to a filter 50 for fine dust or fine solid particles. Generally, the filter 50 for fine solid particles includes a PM1000 filter. 2,5 -Filter that filters out a lot of PM 2,5 -Particles in passenger compartment 38 ( Fig. 2) of the vehicle 10 reduced. In one example, the first filter sensor 24 is connected to a first side of the fine solids filter 50. The second filter sensor 26 is connected to a second, opposite side of the fine solids filter 50 and is located downstream of the first filter sensor 24, so that it is adjacent to a heating, ventilation and cooling (HVAC) fan 64 ( Fig.4) is. Each of the first filter sensor 24 and the second filter sensor 26 observes an airflow or air velocity through the filter 50 for fine solid particles and, based on this, generates sensor signals that are transmitted to the filter sensor monitoring module 27.

[0021] In one example, the first filter sensor 24 and the second filter sensor 26 comprise airflow sensors for fine solids filters, which observe and measure the airflow rate through the fine solids filter 50 and generate sensor signals based on this. The sensor signals generated by each of the first filter sensor 24 and the second filter sensor 26 are transmitted to the filter sensor monitoring module 27. The filter sensor monitoring module 27 receives and processes the sensor signals and determines an airflow through the fine solids filter 50. Based on the determined airflow, the filter sensor monitoring module 27 determines a status of the fine solids filter 50, including, but not limited to, remaining service life or replacement.In one example, the filter sensor monitoring module 27 receives the sensor signals from the first filter sensor 24 and the second filter sensor 26 and determines a difference between the sensor signals, which indicates an airflow through the fine particulate filter 50. Based on the determined airflow, the filter sensor monitoring module 27 determines the status of the fine particulate filter 50 and transmits this status (e.g., remaining service life, replacement) via the communication architecture 48 to the module 20 for controlling the cell air quality.

[0022] With reference to Fig.1. The first chemical sensor 28 comprises a carbon oxide sensor, which monitors the concentration of carbon oxides in the air of the passenger compartment 38, including, but not limited to, carbon monoxide, carbon dioxide, etc. Generally, the first chemical sensor 28 is connected inside the passenger compartment 38 to monitor the air within the passenger compartment 38. The first chemical sensor 28 monitors the air in the passenger compartment 38 and generates one or more sensor signals based on the concentration of carbon oxides. The sensor signals generated by the first chemical sensor 28 are transmitted via the communication architecture 48 to the module 20 for controlling the compartment air quality.

[0023] With reference to Fig.1 The second chemical sensor 30 includes a nitrogen oxide sensor that monitors the concentration of nitrogen oxides in the air of the passenger compartment 38, including, but not limited to, nitric oxide, nitrogen dioxide, nitrous oxide, etc. In general, the second chemical sensor 30 is connected inside the passenger compartment 38 to monitor the air in the passenger compartment 38.

[0024] The second chemical sensor 30 monitors the air inside the passenger compartment 38 and generates one or more sensor signals based on the concentration of nitrogen oxides. The sensor signals generated by the second chemical sensor 30 are transmitted via the communication architecture 48 to the module 20 for controlling the compartment air quality.

[0025] The air quality system 16 includes a heating, ventilation, and air conditioning (HVAC) system 54, at least one ionizer 56, an air intake system 58, and an exhaust and temperature control system 60. The HVAC system 54 includes an evaporator and heater subassembly 61, an HVAC motor 62, and an HVAC fan 64. The evaporator and heater subassembly 61 is located downstream of the fine particulate filter 50 and the HVAC fan 64. The evaporator and heater subassembly 61 cools or heats the air as it passes through the subassembly before it flows through the fine particulate filter 50. In one example, the evaporator and heater subassembly 61 includes an evaporator 63 for cooling the air from the HVAC blower 64 before the air enters the passenger compartment 38, and a heater 65 for heating the air from the HVAC blower 64 before the air enters the passenger compartment 38.As discussed below, the air flows through one or both of the evaporator 63 and the heater 65 based on the outlet and temperature control system 60.

[0026] The HVAC motor 62 comprises an electric motor that responds to one or more control signals received from the cell air quality control module 20 to drive the HVAC fan 64. The HVAC motor 62 is connected to the cell air quality control module 20 via the communication architecture 48. The HVAC motor 62 includes an output shaft (not shown) that is connected to the HVAC fan 64. With reference to Fig.4. The HVAC blower 64 is generally connected to the HVAC system 54, for example, via a duct 66, so that the operation of the HVAC blower 64 draws air through the fine particulate filter 50, into the duct 66, and through the evaporator and heater subassembly 61 into the HVAC system 54 before it enters the passenger compartment 38. The HVAC blower 64 generally comprises one or more blades connected to a rotor, which rotate when torque is applied by the HVAC motor 62 to direct or draw air through the fine particulate filter 50. The HVAC blower 64 draws in air from the environment outside the vehicle 10 (fresh air) or draws in air from inside the passenger compartment 38 (recirculated air) to generate the airflow through the HVAC system 54 based on the position of an air intake door 68, which is connected to the air intake system 58. With reference to Fig.1. Upon receiving one or more control signals from the module 20 for controlling the cabin air quality, the HVAC motor 62 drives the HVAC blower 64 via the output shaft (not shown) to generate a compressed air flow through the fine particulate filter 50, the evaporator and heater subassembly 61, and the outlet and temperature control system 60. In other words, based on the receipt of one or more control signals, the HVAC motor 62 drives the HVAC blower 64 to draw air from the environment outside the vehicle or from inside the cabin through the fine particulate filter 50 and into the evaporator and heater subassembly 61, before the airflow exits into the cabin 38 via the outlet and temperature control system 60.

[0027] The at least one ionizer 56 is connected to the module 20 for controlling cell air quality via the communication architecture 48. With reference to Fig.4A comprises at least one ionizer 56 and two ionizers 56a, 56b, which respond to one or more control signals from the module 20 for controlling the cell air quality in order to electrically charge the air particles flowing through the one or more channels 75 (75a, 75b, 75c and / or 75d) in order to purify the airflow before the air enters the passenger compartment 38 via outlets 76. In an example, the ionizer 56a is shown here as being connected to channel 75a such that it is located at least partially within channel 75a, and as being located downstream of the outlet and temperature control system 60, downstream of the evaporator and heater subassembly 61, and downstream of the HVAC blower 64.The ionizer 56b is shown here as connected to the duct 75d such that it is located at least partially within the duct 75d, and as being located downstream of the outlet and temperature control system 60, downstream of the evaporator and heater subassembly 61, and downstream of the HVAC fan 64. In general, the ionizer 56a is connected to the duct 75a such that an emission device 57a, comprising one or more needles that ionize the airflow, extends into an interior of the duct 75a, and an ionizer module 59a is located substantially outside the duct 75a. The ionizer module 59a is connected to the cell air quality control module 20 to receive one or more control signals and is connected via a communication architecture that transmits data, power, etc.The ionizer 56b is also connected to the emission device 57a to activate or deactivate the emission device 57a. In general, the ionizer 56b is connected to the channel 75d such that an emission device 57b, comprising one or more needles that ionize the airflow, extends into an interior of the channel 75d, and an ionizer module 59b is located essentially outside the channel 75d. The ionizer module 59b is connected to the cell air quality control module 20 to receive one or more control signals and is also connected to the emission device 57b via a communication architecture that allows the transmission of data, power, etc., to activate or deactivate the emission device 57b. Although two ionizers 56a, 56b are shown, multiple ionizers 56 or a single ionizer 56 can also be connected to one or more of the channels 75.Furthermore, the ionizers 56a and 56b can be connected to the channels 75 at any position. Additionally, the ionizers 56a and 56b can be connected to any channel in fluid connection with the outlet and temperature control system 60.

[0028] The air intake system 58 controls the type of airflow entering the passenger compartment 38. For example, the air intake system 58 controls whether the air entering the passenger compartment 38 includes fresh air or air from outside the vehicle 10; or whether the air entering the passenger compartment 38 includes recirculated air or air that is currently present in the passenger compartment 38 of the vehicle 10. The air intake system 58 includes the air intake door 68 and an intake door actuator 70. The air intake door 68 can be controlled by the intake door actuator 70 between a first, open position in which fresh air or air from outside the vehicle 10 is drawn in by the HVAC blower 64 (fresh air mode); and a second, closed position in which air in the passenger compartment 38 is circulated or recirculated by the HVAC blower 64 (recirculation mode).In one example, the air inlet door 68 is movable or pivotable and connected to the HVAC blower 64 via a fluid channel. The air inlet door 68 includes a linkage 68a that connects the air inlet door 68 to the inlet door actuator 70.

[0029] With reference to Fig.The inlet door actuator 70 is connected to the cell air quality control module 20 via the communication architecture 48. The inlet door actuator 70 comprises an electrical actuator that responds to one or more control signals from the cell air quality control module 20 to move the air inlet door 68 to the first position and / or the second position. The inlet door actuator 70 includes an output shaft (not shown) that is connected to the linkage 68a of the air inlet door 68. Upon receiving one or more control signals, the inlet door actuator 70 moves or rotates the linkage, thereby pivoting the air inlet door 68 between the first position (fresh air mode) and the second position (recirculation mode).

[0030] The exhaust and temperature control system 60 controls the direction of air discharge from the HVAC blower 64 into the passenger compartment 38. The exhaust and temperature control system 60 includes one or more exhaust doors 72 and one or more actuators 74 that work together to direct the air from the HVAC blower 34 into the passenger compartment 38. In an example, the one or more exhaust doors 72 include a first exhaust door 72a, a second exhaust door 72b, a third exhaust door 72c, and a fourth exhaust door 72d; and the one or more actuators 74 include a first actuator 74a, a second actuator 74b, a third actuator 74c, and a fourth actuator 74d. In this example, each of the outlet doors 72a, 72b, 72d can be switched between different positions by a respective actuator 74a, 74b, 74d, e.g.one or more of a first position (1), a second position (2) and a third position (3) are moved to define an outlet airflow mode, as in . Fig. 4B shown. The third outlet door 72c controls the temperature of the air entering the passenger compartment 38 and can be moved by the third actuator 74c, based on a selected temperature or temperature range for the passenger compartment 38, into various positions, such as one or more positions from a first position (1), a second position (2) and a third position (3), as shown in Fig. 4B shown. As in Fig.As shown in Figure 4B, each of the outlet doors 72a-72d can be moved along a path, indicated by dashed lines, and each of the outlet doors 72a-72d can be positioned at any point or selected position along this path to define a particular outlet airflow mode, as is known to a person skilled in the art. With further reference to Fig. 4. Each of the outlet doors 72a-72d is movable or pivotable and connected to a duct, and is in fluid communication with the HVAC fan 64 to receive an airflow from the HVAC fan 64. Each of the outlet doors 72a-72d includes a respective linkage 73a-73d that connects the respective outlet door 72a-72d to the respective actuator 74a-74d.

[0031] With reference to Fig.Each of the actuators 74a-74d is connected to the cell air quality control module 20 via the communication architecture 48. Each of the actuators 74a-74d comprises an electrical actuator that responds to one or more control signals from the cell air quality control module 20 to move the respective exhaust door 72a, 72b, 72d to a selected position, such as one of the first, second, and / or third positions; and to move the third exhaust door 72c to positions between (and including) the first, second, and third positions. Each of the actuators 74a-74d includes an output shaft (not shown) that is connected to the linkage 73a-73d of the respective air exhaust door 72a-72d.Upon receiving one or more control signals, each of the actuators 74a-74d moves or rotates the linkage, thereby pivoting the respective outlet door 72a-72d into the selected position (e.g., a point along the respective movement path for each of the outlet doors 72a-72d, as in . Fig. 4B (shown).

[0032] The outlet and temperature control system 60 moves the outlet doors 72a, 72b, 72d between different positions to define one or more outlet airflow modes for the airflow into the passenger compartment 38, and moves the third outlet door 72c to define a desired temperature for the outlet airflow. In general, the third outlet door 72c can be moved to one of several positions based on a selected temperature or temperature range received via an input device to direct the airflow through at least one of the evaporator 63 and the heater 65, as is known to those skilled in the art.

[0033] In one example, the outlet doors 72a-72d are movable to define the following outlet airflow modes: a defrost / defogging mode, a ventilation mode, a two-level mode, a floor mode, and a floor and defogging mode. With reference to Fig. 2 In defrost / defog mode, one or more ducts located downstream of the outlet and temperature control system 60 direct air to one or more outlets 79 adjacent to a windshield of the vehicle 10. In ventilation mode, one or more ducts located downstream of the outlet and temperature control system 60 direct an airflow to one or more outlets 76 located near an occupant's face (i.e., the one or more outlets 76 are connected via ducts 75a-75d). Fig.4A connected to an instrument panel 77 of the vehicle 10). In floor mode, one or more ducts located downstream of the outlet and temperature control system 60 direct an airflow to one or more outlets 78 located near the feet of an occupant (i.e., the one or more outlets 78 are located near the opening 46 of the console 42). In two-level mode, the one or more channels located downstream of the outlet and temperature control system 60 direct an airflow to the outlets 76 and 78. In floor and defogging mode, the one or more channels located downstream of the outlet and temperature control system 60 direct an airflow to the outlets 79 and 78. The third outlet door 72c can be moved to allow airflow through at least one of the evaporator 63 and the heater 65.

[0034] Each of the actuators 74a-74d responds to one or more control signals from the module 20 for controlling cell air quality in order to direct an airflow through one or more of the outlets 76, 78, 79. Accordingly, each of the actuators 74a-74d controls the airflow such that the airflow exits into the passenger compartment 38 at outlets 76 and outlets 78 (dual-level mode); at outlets 79 and outlets 78 (floor and defogging mode); only at outlets 76 (ventilation mode); only at outlets 79 (defrosting / defogging mode); or only at outlets 78 (floor mode). The following table provides an example of the positions of the first outlet door 72a, the second outlet door 72b, the third outlet door 72c and the fourth outlet door 72d to achieve the specified outlet airflow mode: TABLE 1: OUTLET DOOR POSITION FOR OUTLET AIR FLOW MODE First exit door position Second exit door position Third exit door position Fourth exit door position Defrost / defog mode Second A selected position along the in Fig. 4B path shown First A selected position along the in Fig. 4B path shown Ventilation mode First A selected position along the in Fig. 4B First A selected position along the in Fig. 4B depicted path depicted path Two-level mode First A selected position along the in Fig. 4B path shown A selected position along the in Fig. 4B path shown A selected position along the in Fig. 4B path shown Floor mode First First A selected position along the in Fig. 4B path shown A selected position along the in Fig. 4B path shown Floor and defogging mode Second A selected position along the in Fig. 4B path shown A selected position along the in Fig. 4B path shown A selected position along the in Fig. 4B path shown

[0035] The at least one user interface 18 is communicatively connected to the module 20 for controlling cell air quality via the communication architecture 48. In one example, the at least one user interface 18 comprises an instrument panel user interface 80, an HVAC user interface 82, and a louvre user interface 84. It will be understood that the vehicle 10 can include one, more than one, or all of the user interfaces 18, if desired.

[0036] The instrument panel interface 80 includes an instrument panel display 86 and optionally includes at least one instrument panel input device 88, each of which is connected to the module 20 for controlling cell air quality via the communication architecture 48. The instrument panel display 86 generally comprises a flat screen implemented in a section of an instrument panel of the vehicle 10. The instrument panel display 86 includes any suitable technology for displaying information, including, but not limited to, a liquid crystal display (LCD), an organic light-emitting diode (OLED), plasma, or a cathode ray tube (CRT). In general, with reference to Fig. 6, the instrument panel display shows 86 a value of 90 of a PM 2,5 -levels or a -concentration in micrograms per cubic meter of air (µg / m³) 3) with a graphical indicator of air quality, as discussed in more detail herein. It should be noted that the PM 2,5 The concentration level can be displayed in any desired unit, and the use of micrograms per cubic meter of air is therefore purely illustrative. The instrument panel display 86 also shows a filter change indicator 92. In various embodiments, the at least one instrument panel input device 88 comprises any device that receives inputs and / or commands from the user, such as a button, a lever, etc. As input, the at least one instrument panel input device 88 receives, for example, a command to activate the air quality control system 12 or an operating mode for the air quality control system 12. The at least one instrument panel input device 88 can also receive an override request for the operation of the air quality system 16.

[0037] The HVAC user interface 82 includes an HVAC display 94 and at least one HVAC input device 96, each of which is connected to the module 20 for controlling cell air quality via the communication architecture 48. The HVAC display 94 generally comprises a flat screen implemented in a section of an instrument panel of the vehicle 10 and may be part of an infotainment system of the vehicle 10. The HVAC display 94 includes any suitable technology for displaying information, including, but not limited to, a liquid crystal display (LCD), an organic light-emitting diode (OLED), plasma, or a cathode ray tube (CRT). In general, with reference to Fig. 7, the HVAC display 94 shows the PM value 90. 2,5 -levels or the - concentration in micrograms per cubic meter of air (µg / m³) 3) with the graphical air quality indicator. The HVAC display 94 also displays the filter change indicator 92. In various embodiments, the at least one HVAC input device 96 comprises any device that receives inputs and / or commands from the user, such as a button, a lever, etc., and may include a touchscreen layer in conjunction with the HVAC display 94. As input, the at least one HVAC input device 96 receives, for example, a command to activate the air quality control system 12 and / or an operating mode for the air quality control system 12. The at least one HVAC input device 96 may also receive an override request for the operation of the air quality system 16.

[0038] The aperture user interface 84 includes an aperture display 98 and at least one aperture input device 99, which are each connected to the module 20 for controlling cell air quality via the communication architecture 48. With reference to Fig. 8 and Fig. 9 The aperture display 98 generally comprises a flat screen implemented in a section of an aperture 202. In one example, the aperture 202 has a first page 204 ( Fig. 8) on, opposite to a second page 206 ( Fig.9). The second side 206 is generally adjacent to a roof lining of the vehicle 10 when the cover 202 is in a stowed position. The cover 202 can be manually moved or rotated to expose the second side 206. In this example, the aperture indicator 98 and the aperture input device 99 are connected to the second side 206 of the cover 202. However, it will be understood that the aperture indicator 98 and the aperture input device 99 can, if desired, be connected to the first side 204.

[0039] The aperture display 98 encompasses any suitable technology for displaying information, including, but not limited to, a liquid crystal display (LCD), an organic light-emitting diode (OLED), plasma, or a cathode ray tube (CRT). With reference to Fig. 9 shows the aperture display 98, the PM value 90. 2,5 -levels or concentration in micrograms per cubic meter of air (µg / m³)3 ) with the graphic indicator of air quality. The aperture display 98 also displays the filter change indicator 92. In various embodiments, the at least one aperture input device 99 comprises any device that receives inputs and / or commands from the user, such as a button, a lever, etc., and may include a touchscreen layer in conjunction with the aperture display 98. As input, the at least one aperture input device 99 receives, for example, a command to activate the air quality control system 12 and / or an operating mode for the air quality control system 12. The at least one aperture input device 99 may also receive an override request for the operation of the air quality system 16.

[0040] In various embodiments, the module 20 for controlling cell air quality outputs one or more control signals to the sensor motor 32, based on the systems and methods of the present disclosure, to drive the blower 34 to monitor the airflow. Based on sensor signals from the particulate matter sensor system 22, inputs received from the first input devices 88, 96, and 99, and based on the systems and methods of the present disclosure, the module 20 for controlling cell air quality outputs one or more control signals to the HVAC motor 62 to drive the HVAC blower 64 to generate an airflow through the duct 66 and into the passenger compartment 38.The cell air quality control module 20 outputs one or more control signals to the inlet door actuator 70 based on the sensor signals from the one or more sensors 14 and based on the systems and methods of this disclosure. The cell air quality control module 20 also outputs one or more control signals to the ionizers 56a, 56b to activate the emission devices 57a, 57b, based on the sensor signals from the fine dust sensor system 22 and based on the systems and methods of this disclosure. Finally, the cell air quality control module 20 outputs one or more control signals to one or more of the actuators 74a-74d to control the outlet airflow mode for the outlets 76, 78, 79, based on the sensor signals from the one or more sensors 14 and based on the systems and methods of this disclosure.The module 20 for controlling cell air quality outputs a user interface for display on one or more of the instrument panel display 86, the HVAC display 94 and / or the aperture display 98, based on the sensor signals from the fine dust sensor system 22 and based on the systems and methods of the present disclosure.

[0041] With reference to Fig. 10, and with continued reference to Fig. Figure 1 illustrates a data flow diagram showing different embodiments of a control system 100 for the air quality control system 12, which can be embedded in the module 20 for controlling cell air quality. Different embodiments of the control system 100 according to the present disclosure can include any number of submodules embedded in the module 20 for controlling cell air quality. As can be understood, the in Fig.The 10 submodules shown can be combined and / or further subdivided to control the sensor motor 32, the HVAC motor 62, the inlet door actuator 70, the actuators 74a-74d, the ionizers 56a, 56b, and to output the user interface for display on the HVAC display 94, the instrument panel display 86, and / or the aperture display 98. Inputs to the control system 100 can be received from the fine dust sensor system 22 ( Fig. 1) be received from which at least one input device 88, 96, 99 of the user interfaces 80, 82, 84 ( Fig.1) be received from, received from other control modules (not shown) in conjunction with the vehicle 10, and / or determined / modeled by other submodules (not shown) in the module 20 for controlling cell air quality. In various embodiments, the module 20 for controlling cell air quality includes a level determination module 102, a quality data store 104, a door position data store 108, an air quality control module 110, and a user interface (UI) control module 112.

[0042] The quality data store 104 stores one or more tables (e.g., lookup tables) that represent air quality based on a PM 2,5 -concentration level observed by the particulate matter sensor 36. In other words, the quality data store 104 stores one or more tables that provide a quality value 114 for air in the passenger compartment 38 based on various PM levels. 2,5-provide concentration levels. In various embodiments, the tables may be interpolation tables defined by one or more indices. A quality value 114, provided by at least one of the tables, indicates an air quality for the air in the passenger compartment 38 based on the PM 2,5 -Concentration level. An example quality value of 114 can include an air quality rating, e.g., good (PM). 2,5 -Concentration of approximately 0-35 µg / m³ 3 ); moderate (PM 2,5 -Concentration of approximately 36-115 µg / m³ 3 ); and bad (PM 2,5 -Concentration of more than approximately 116 µg / m³ 3 It should be noted that these air quality assessments are merely examples. For instance, one or more tables could be modified using various parameters, such as, but not limited to, PM10. 2,5-Concentration level, indexed to provide the quality value 114.

[0043] The level determination module 102 receives fine dust sensor data 116 as input. The fine dust sensor data 116 comprises the sensor signals from the fine dust sensor 36. The level determination module 102 processes the fine dust sensor data 116 and determines a concentration level 118. The level determination module 102 sets the concentration level 118 for the air quality control module 110 and the UI control module 112. The concentration level 118 includes the PM 2,5 -Concentration level as observed by the fine dust sensor 36.

[0044] Based on the reception of the fine dust sensor data 116, the level determination module 102 queries the quality data storage 104 and retrieves the quality value 114, which corresponds to the PM observed and measured by the fine dust sensor 36. 2,5-concentration level is assigned. Based on the retrieved quality value 114, the level determination module 102 sets air quality data 120 for the UI control module 112. In an example, the air quality data 120 includes one of good, moderate, or poor.

[0045] The level determination module 102 also processes the fine dust sensor data 116 to determine whether the fine dust sensor 36 is functioning correctly. For example, the level determination module 102 determines whether the sensor signals received in the fine dust sensor data 116 represent acceptable PM readings. 2,5-concentration levels. If the level determination module 102 determines that the particulate matter sensor data 116 does not contain acceptable readings, and therefore the particulate matter sensor 36 is not functioning properly, the level determination module initiates maintenance 122 for the UI control module 112. Maintenance 122 includes a message to the UI control module 112 indicating that the particulate matter sensor 36 is not functioning properly and requires maintenance.

[0046] The door position data memory 108 stores one or more tables (e.g., lookup tables) that provide the positions for the outlet doors 72a-72d based on an outlet airflow mode for outlets 76, 78, 79. In other words, the door position data memory 108 stores one or more tables that provide a door position 124 for the outlet doors 72a-72d based on the outlet airflow mode (e.g., dual-level mode; floor and defogging mode; ventilation mode; defrosting / defogging mode; or floor mode) for outlets 76, 78, 79. In various embodiments, the door position data memory 108 stores TABLE 1 discussed above. The door position 124, provided by at least one of the tables, specifies a position for each of the respective outlet doors 72a-72d (e.g., a point along the respective movement path for each of the outlet doors 72a-72d, as in Fig.4B), to achieve the exhaust airflow mode. As an example, one or more tables can be indexed by various parameters, for example, but not limited to, the exhaust airflow mode, to provide door position 124.

[0047] The air quality control module 110 receives a mode 134 input from the UI control module 112. Mode 134 comprises an automatic or manual mode for operating the air quality control system 12, as received as input from the at least one user interface 18. If no input data is received, the air quality control module 110 determines mode 134 as a default or factory-set mode. In an example, the default mode 134 includes the automatic mode. In automatic mode, without receiving any user input, the air quality control module 110 outputs one or more control signals to the HVAC motor 62, the inlet door actuator 70, the ionizer 56a, the ionizer 56b, and the actuators 74a-74d, based on the concentration level 118.In manual mode, the air quality control module 110, based on the concentration level 118 and a command 136 received from the UI control module 112, outputs one or more control signals to the HVAC motor 62, the inlet door actuator 70, the ionizer 56a, the ionizer 56b, and the actuators 74a-74d. The command 136 includes a request to operate the air quality system 16, received as input from one or more of the input devices 88, 96, 99.

[0048] The air quality control module 110 receives status data 138 as input. The status data 138 includes the current status of the air quality system 16, e.g., a fan status 140, an inlet door status 142, and an outlet mode status 144. The status data 138 can be provided by other modules associated with the vehicle 10 or can be determined by the air quality control module 110 based on signals and / or data received from the HVAC motor 62, the inlet door actuator 70, and each of the actuators 74a-74d. The fan status 140 includes a status for the HVAC fan 64, e.g., high, medium, low, which can be determined based on an output speed of the HVAC motor 62. The inlet door status 142 includes a status for the air inlet door 68, e.g., B. open or closed, which can be determined based on a position of the inlet door actuator 70.The outlet mode status 144 includes the current outlet airflow mode, e.g., two-level mode, floor and defogging mode, ventilation mode, defrost / defogging mode, or floor mode, based on the positions of actuators 74a-74d.

[0049] The air quality control module 110 also receives the concentration level 118 as input. Based on mode 134, status data 138, and concentration level 118, the air quality control module 110 outputs fan data 146, intake door data 148, ionizer data 150, exhaust door data 152, and a warning 153. Based on automatic mode (mode 134), the air quality control module 110 outputs fan data 146, intake door data 148, ionizer data 150, and exhaust door data 152 essentially automatically, or without receiving input data, based on concentration level 118. Based on manual mode (mode 134), the air quality control module 110 sets a warning 153 for the UI control module 112 based on concentration level 118. Warning 153 includes a notification to activate the air quality system 16 based on concentration level 118.Air quality control module 110 receives an override 154 as input from UI control module 112. Override 154 includes a request to override the automatic mode based on concentration level 118. Based on receiving override 154, air quality control module 110 also sets warning 153 for UI control module 112. Air quality control module 110 also receives command 136 as input and, upon receiving command 136, outputs fan data 146, intake door data 148, ionizer data 150, and exhaust door data 152 based on concentration level 118.

[0050] The blower data 146 includes one or more control signals for the HVAC motor 62 to drive the HVAC blower 64 at a desired speed (high, medium, low) based on the blower status 140. The intake door data 148 includes one or more control signals for the intake door actuator 70 to move the air intake door 68 to the first or second position based on the intake door status 142. The ionizer data 150 includes one or more control signals for the ionizer 56a and the ionizer 56b to activate or deactivate the ionizer 56a and the ionizer 56b. The outlet door data 152 comprise one or more control signals for one or more of the actuators 74a-74d to move the respective outlet door 72a-72d into the specified position (e.g., a point along the respective movement path for each of the outlet doors 72a-72d, as in Fig.4B shown), to provide the specified outlet airflow mode (dual-level mode, floor and defog mode, ventilation mode, defrost / defog mode or floor mode) based on the outlet mode status 144.

[0051] In one example, the air quality control module 110 determines whether the concentration level 118 is below a certain threshold. For instance, the air quality control module 110 determines whether the concentration level 118 is less than approximately 35 µg / m³. 3If the concentration level 118 is above the lower threshold, the air quality control module 110, in manual mode, sets warning 153 for the UI control module 112. Based on the determination that the concentration level 118 is above the lower threshold, the air quality control module 110, in automatic mode or upon receiving command 136, determines whether the concentration level 118 is within a first range. For example, the air quality control module 110 determines whether the concentration level 118 is higher than approximately 35 µg / m³. 3 and less than approximately 75 µg / m³ 3If it is determined that the concentration level 118 is within the first range, the air quality control module 110 determines whether override 154 has been received as input in automatic mode. The air quality control module 110 receives override 154 as input from the UI control module 112. Override 154 includes a request to override automatic mode based on concentration level 118.

[0052] Based on the determination that the concentration level 118 is within the first area and on the status data 138, the air quality control module 110 outputs the fan data 146 and outlet door data 152 for the first area. Within the first area, the fan data 146 includes one or more control signals for the HVAC motor 62 to drive the HVAC fan 64 at a low speed. Within the first area, the air quality control module 110 queries the door position data memory 108 and retrieves the door position 124 for the dual-level mode. Based on the door position 124 and the outlet mode status 144, the outlet door data 152 includes one or more control signals for the actuators 74a-74d to adjust the positions of the outlet doors 72a-72d to provide a dual-level outlet airflow. The air quality control module 110 also outputs ionizer data 150 to activate the ionizer 56a and the ionizer 56b.

[0053] Based on the concentration level 118, the air quality control module 110 also determines whether the concentration level 118 lies within a second range. For example, the air quality control module 110 determines whether the concentration level 118 is higher than approximately 75 µg / m³. 3 and less than approximately 115 µg / m³ 3If the concentration level 118 is determined to be within the second zone, the air quality control module 110 outputs the fan data 146 and the exhaust door data 152 for the second zone based on the determination of the second zone and the status data 138. Within the second zone, the fan data 146 includes one or more control signals for the HVAC motor 62 to drive the HVAC fan 64 at a medium speed. Within the second zone, the air quality control module 110 queries the door position data memory 108 and retrieves the door position 124 for the two-level mode. Based on the door position 124 and the outlet mode status 144, the outlet door data 152 includes one or more control signals for the actuators 74a-74d to adjust the positions of the outlet doors 72a-72d to provide a two-level outlet airflow.The air quality control module 110 also outputs ionizer data 150 to activate ionizers 56a and 56b. The air quality control module 110 also determines whether override 154 was received as input in automatic mode.

[0054] Based on the concentration level 118, the air quality control module 110 also determines whether the concentration level 118 lies within a third range. For example, the air quality control module 110 determines whether the concentration level 118 is higher than approximately 115 µg / m³. 3If it is determined that the concentration level 118 is within the third zone, the air quality control module 110 outputs the fan data 146, the inlet door data 148, and the outlet door data 152 for the third zone based on this determination and the status data 138, and the air quality control module 110 starts a timer. Within the third zone, the fan data 146 includes one or more control signals for the HVAC motor 62 to drive the HVAC fan 64 at high speed. Within the third zone, the air quality control module 110 queries the door position data memory 108 and retrieves the door position 124 for floor mode. Based on the door position 124 and the outlet mode status 144, the outlet door data 152 includes one or more control signals for the actuators 74a-74d to adjust the positions of the outlet doors 72a-72d to provide a floor mode outlet airflow (outlets 78).Within the third area, the inlet door data 148 includes one or more control signals for the inlet door actuator 70 to move the air inlet door 68 into the second, closed position. The air quality control module 110 also outputs ionizer data 150 to activate the ionizer 56a and the ionizer 56b. The air quality control module 110 also determines whether the override 154 was received as an input in automatic mode.

[0055] After a predetermined period, e.g., approximately 5 minutes, based on the timer, the air quality control module 110 queries the door position data memory 108 and retrieves the door position 124 for the two-level mode. Based on the door position 124 and the outlet mode status 144, the air quality control module 110 outputs the outlet door data 152, which includes one or more control signals, to the actuators 74a-74d to adjust the positions of the outlet doors 72a-72d to provide a two-level outlet airflow. It should be noted that the PM 2,5 -Concentration levels within each of the lower threshold, second range and third range are merely examples, and that the Air Quality Control Module 110 can also operate based on additional ranges or thresholds.

[0056] If it is determined that the concentration level 118 is in the first area or the second area, the air quality control module 110 receives CO as input. x -Sensor data 156 and NO x -Sensor data 158. The CO x Sensor data 156 includes the sensor signals from the first chemical sensor 28, and the NO x Sensor data 158 includes the sensor signals from the second chemical sensor 30. The air quality control module 110 processes the CO x -Sensor data 156 and determines whether the CO x Sensor data 156 greater than a CO x -thresholds are. If the CO x Sensor data 156 greater than the CO x -threshold values ​​are reached, the air quality control module 110 outputs the inlet door data 148, which includes one or more control signals to the inlet door actuator 70 to move the air inlet door 68 into the first, open position (fresh air mode).

[0057] The air quality control module 110 processes the NO x -Sensor data 158 and determines whether the NO x Sensor data 158 greater than a NO x -thresholds are. If the NO x Sensor data 158 greater than the NO x -threshold values ​​are reached, the air quality control module 110 outputs the inlet door data 148, which includes one or more control signals to the inlet door actuator 70 to move the air inlet door 68 into the second, closed position (recirculation mode).

[0058] The air quality control module 110 also receives an ignition status 160 as input. The ignition status 160 comprises the status of the vehicle 10's ignition, e.g., on or off, which is provided by other modules connected to the vehicle 10 via a communication architecture, such as the communication architecture 48. Based on the ignition status 160 being "on," the air quality control module 110 outputs sensor data 162. The sensor data 162 includes one or more control signals to the sensor motor 32 to drive the blower 34 to draw air into the cavity 44 for observation by the particulate matter sensor 36.

[0059] The UI control module 112 receives input data 164. The input data 164 comprises inputs received by the at least one input device 88, 96, and 99. The UI control module 112 processes the input data 164 and sets the mode 134 and the command 136 for the air quality control module 110.

[0060] The UI control module 112 also receives the following inputs: concentration level 118, air quality data 120, maintenance 122, status message 264, and warning 153. The UI control module 112 processes the concentration level 118, air quality data 120, maintenance 122, status message 132, and warning 153, generating user interface data 166. This user interface data 166 includes a concentration 168, a quality level indicator 170, a filter message 172, a sensor message 174, and a warning message 176 for display on one or more of the displays 86, 94, and 98. The concentration 168 includes a textual message from the PM (permanent object). 2,5 -Concentration levels, indicated by concentration level 118. Concentration 168, for example, includes the text: "PM 2,5 X”, and X includes the PM 2,5-Concentration level from concentration level 118. The quality level indicator 170 includes a graphic indicator of air quality in passenger compartment 38, as specified by the air quality data 120. In one example, the quality level indicator 170 includes a color in conjunction with the text of concentration 168. Based on good air quality data 120, for example, the quality level indicator 170 includes a green color, and the text of concentration 168 is displayed in green. In this example, the quality level indicator 170 for moderate air quality data 120 includes a yellow color, and the quality level indicator 170 for poor air quality data 120 includes a red color. It should be noted that these examples of the quality level indicator 170 are only illustrative, as the quality level indicator 170 for good air quality data 120 may also include a graphic symbol, such as a smiling emoticon, as in Fig.9 is shown. Accordingly, the concentration 168 and the quality level indicator 170 generally comprise the value 90, shown in Fig. 6, Fig. 7 and Fig. 9.

[0061] Filter message 172 includes a graphical and / or textual indicator for display on one or more of the displays 86, 94, 98, which, based on status message 264, indicates that filter 50 for fine solid particles needs to be changed. For example, filter message 172 can indicate the following: Fig. 6, Fig. 7 and Fig. The filter change indicator shown in 92 may include the filter message. Alternatively, the filter message 172 may contain a text message, e.g.: "Change PM2.5 filter".

[0062] Sensor message 174 includes a graphical and / or textual indicator for display on one or more of the displays 86, 94, 98, which, based on maintenance 122, indicates that the particulate matter sensor 36 needs to be repaired. For example, sensor message 174 may include a text message such as: "PM2.s sensor service".

[0063] Warning message 176 includes a graphical and / or textual indicator for display on one or more of the displays 86, 94, 98, which, based on warning 153, indicates that the PM 2,5 -Concentration level is above the lower threshold. For example, alert message 176 may include a text message, such as: “PM 2,5 "High level - activate air quality system?"

[0064] With reference to Fig. 10A, and with continued reference to Fig.Figure 1 illustrates a data flow diagram of different embodiments of a control system 250 for the air quality control system 12, which can be embedded in the filter sensor monitoring module 27.

[0065] Various embodiments of the control system 250 according to the present disclosure can include any number of submodules embedded in the filter sensor monitoring module 27. As can be understood, the in Fig. The submodules shown in 10A can be combined and / or further subdivided to determine the status of the first filter 50 for fine solid particles. Inputs to the control system 250 can be received from the first filter sensor 24 ( Fig. 1) are received from the second filter sensor 26 ( Fig.1) from, received from other control modules (not shown) in conjunction with the vehicle 10 and / or determined / modeled by other submodules (not shown) in the filter sensor monitoring module 27. In various embodiments, the filter sensor monitoring module 27 includes a filter monitoring module 252 and an airflow data storage device 254.

[0066] The airflow data memory 254 stores one or more tables (e.g., lookup tables) that specify a status of the fine solids filter 50 based on an airflow observed by the first filter sensor 24 and the second filter sensor 26. In other words, the airflow data memory 254 stores one or more tables that specify a filter status 256 for the fine solids filter 50 based on various sensor signals received from the first filter sensor 24 and the second filter sensor 26. In various embodiments, the tables may be interpolation tables defined by one or more indices.Filter status 256, provided by at least one of the tables, indicates, based on the airflow through the fine solids filter 50 as observed by the first filter sensor 24 and the second filter sensor 26, whether the fine solids filter 50 has a remaining service life or whether the fine solids filter 50 should be replaced. For example, one or more tables can be indexed by various parameters, such as, but not limited to, an airflow observed by the first filter sensor 24 and an airflow observed by the second filter sensor 26, or a difference between the airflow observed by the first filter sensor 24 and the airflow observed by the second filter sensor 26, to provide filter status 256.

[0067] The filter monitoring module 252 receives filter sensor data 258 as input. The filter sensor data 258 comprises first filter sensor data 260 and second filter sensor data 262. The first filter sensor data 260 comprises the sensor signals from the first filter sensor 24, and the second filter sensor data 262 comprises the sensor signals from the second filter sensor 26. The filter monitoring module 252 processes the first filter sensor data 260 and the second filter sensor data 262 and retrieves the filter status 256, which is associated with the airflow through the fine particulate filter 50, as observed by the first filter sensor 24 and the second filter sensor 26. Based on the retrieved filter status 256, the filter monitoring module 252 outputs a status message 264 to the module 20 for controlling cell air quality. In one example, status message 264 includes a message to change filter 50 for fine solid particles.

[0068] With reference to Fig. 11, and with continued reference to Fig. 1-10, a flowchart illustrates a control procedure 300, which is used by module 20 to control cell air quality from Fig. 1 and Fig. 10 according to the present disclosure. As can be understood from the disclosure, the order of operations within the procedure is not limited to sequential execution, as in Fig. 11 illustrates, limits, but can, depending on applicability and in accordance with the present disclosure, be carried out in one or more different sequences.

[0069] In various embodiments, the method can be planned to be executed periodically or based on predetermined events, such as a start or ignition-on status of the vehicle 10.

[0070] In one example, the procedure begins at 302. At 304, the procedure outputs one or more control signals to the sensor motor 32 to drive the blower 34 to draw air into the cavity 44 for observation by the particulate matter sensor 36. At 306, the procedure determines, based on the particulate matter sensor data 116, whether the particulate matter sensor 36 has passed a self-test, thus confirming that the particulate matter sensor 36 is functioning correctly. If it is determined that the particulate matter sensor 36 is functioning correctly, the procedure continues at 307. Otherwise, at 310, the procedure outputs the sensor message 174 to one or more of the displays 86, 94, 98, and the procedure ends at 312.

[0071] At step 307, the procedure determines whether the status message 264, indicating that the filter 50 for fine solid particles needs to be changed, has been received from the filter sensor monitoring module 27. If so, the procedure proceeds to step 309 and outputs the filter message 172 for display on at least one of the displays 86, 94, and 98. The procedure then proceeds to step 308. If the status message 264 has not been received, the procedure also proceeds to step 308.

[0072] At 308, the procedure determines the current status or status data 138 of the air quality system and determines the mode 134. If user inputs were received to set mode 134, the procedure determines mode 134 based on the input data 164. If no input data was received, the procedure determines mode 134 as the default mode. At 310, the procedure determines the PM 2,5-Concentration level in the air based on the sensor signals from the fine dust sensor 36. At 312, the procedure is determined based on the determined PM 2,5 -Concentration level determines the air quality level and outputs user interface data 166, which includes the concentration 168 and the quality level indicator 170. At 314, the procedure determines whether the PM 2,5 -Concentration level is below the lower threshold. If this is the case, the procedure continues with 316. At 316, the procedure determines, based on the ignition status 160, whether the ignition of vehicle 10 is switched on. If the ignition is switched on, the procedure continues with 308. Otherwise, the procedure ends at 312.

[0073] If the PM 2,5If the concentration level is above the lower threshold, the procedure determines at 318 whether mode 134 is a manual mode. If mode 134 is an automatic mode, the procedure proceeds with A in Fig. 12 continues. If mode 134 is a manual mode, the procedure at 320 outputs warning message 176 for display on one or more of the displays 86, 94, 98. At 322, the procedure determines whether a user input has been received that includes command 136. If a user input is received, the procedure proceeds with A in Fig. 12 continues. Otherwise, the procedure returns to 310.

[0074] With reference to Fig. 12 determines the procedure, starting from A, at 324, whether the PM 2,5 -Concentration level is within the first range. If this is the case, the procedure continues with 326. If the PM 2,5If the concentration level is outside the first range, the procedure at 328 determines whether the PM 2,5 -Concentration level is within the second range. If the PM 2,5 If the concentration level is outside the second range, the procedure continues with D in Fig. 13 continued.

[0075] Based on the determination that the PM 2,5 If the concentration level is within the first range, the procedure determines at 326 whether an override request has been received via one of the input devices 88, 96, 99. If the override 154 has been received, the procedure proceeds with B in Fig. 11 continued. With brief reference to Fig. Starting from B, procedure 11 issues warning message 176 at 311 for display on one or more of the displays 86, 94, 98.

[0076] With renewed reference to Fig.If the override request was not received, procedure 12 continues with 330. At 330, the procedure outputs, based on the current status of air quality system 16, from the status data 138 and the determined PM10. 2,5 -Concentration level as the first area, one or more control signals are sent to the HVAC motor 62, one or more of the actuators 74a-74d, the ionizer 56a, and the ionizer 56b. In this example, in the first area, the procedure sends one or more control signals to the HVAC motor 62 to drive the HVAC fan 64 at a low speed; sends one or more control signals to the actuators 74a-74d to adjust the positions of the outlet doors 72a-72d to provide a two-level outlet airflow; and sends one or more control signals to activate the ionizer 56a and the ionizer 56b. The procedure continues with 332.

[0077] Based on the determination that the PM 2,5 -If the concentration level is within the second range, the procedure outputs at 334 based on the current status of the air quality system 16 from the status data 138 and the determined PM 2,5-Concentration level as the second area, one or more control signals are sent to the HVAC motor 62, one or more of the actuators 74a-74d, the ionizer 56a, and the ionizer 56b. In this example, in the second area, the method outputs one or more control signals to the HVAC motor 62 to drive the HVAC fan 64 at a medium speed; outputs one or more control signals to the actuators 74a-74d to adjust the positions of the outlet doors 72a-72d to provide a two-level outlet airflow; and outputs one or more control signals to activate the ionizer 56a and the ionizer 56b. At 333, the method determines whether an override request has been received via one of the input devices 88, 96, or 99. If the override 154 has been received, the method proceeds with B in Fig. 11 continues. Otherwise, the procedure continues with 332.

[0078] At 332, the procedure receives and processes the sensor signals from the second chemical sensor 30 to determine the NO x -concentration within passenger compartment 38. At 336, the procedure determines whether the NO x -Concentration in the passenger compartment 38 lower than a NO₂ concentration x -threshold is. If the NO x -Concentration lower than the NO x The procedure continues at 338 if the NO threshold is reached. x -Concentration higher than the NO x If the threshold value is exceeded, the procedure outputs one or more control signals at 340 to the inlet door actuator 70 to move the air inlet door 68 into the second, closed position (recirculation mode). The procedure continues with C in Fig. 11.

[0079] At 338, the procedure receives and processes the sensor signals from the first chemical sensor 28 to determine the CO x-concentration within passenger compartment 38. At 342, the procedure determines whether the CO x -Concentration lower than a CO x -threshold is. If the CO x If the concentration is lower than a threshold value, the process continues with C in Fig. 11 continues. Otherwise, at 344, the procedure outputs one or more control signals to the inlet door actuator 70 to move the air inlet door 68 into the first, open position (fresh air mode). The procedure continues with C in Fig. 11.

[0080] With reference to Fig. At point 13, the procedure starts from D and a timer is activated at 346. At 348, the procedure outputs a value based on the current status of the air quality system 16, the status data 138, and the determined PM. 2,5-Concentration level as the third area, one or more control signals are sent to the HVAC motor 62, one or more of the actuators 74a-74d, the inlet door actuator 70, the ionizer 56a, and the ionizer 56b. In this example, in the third area, the method sends one or more control signals to the HVAC motor 62 to drive the HVAC fan 64 at high speed; sends one or more control signals to the actuators 74a-74d to adjust the positions of the outlet doors 72a-72d to provide a floor-mode outlet airflow (outlets 78); sends one or more control signals to the inlet door actuator 70 to move the air inlet door 68 to the second, closed position; and sends one or more control signals to activate the ionizer 56a and the ionizer 56b. At 350, the procedure determines whether the timer value is greater than a threshold. In one example, the threshold is approximately 5 minutes.If the timer value is greater than a threshold, the procedure continues with 351. Otherwise, the procedure returns.

[0081] At 351, the procedure determines whether an override request has been received via one of the input devices 88, 96, or 99. If override 154 has been received, the procedure proceeds with B. Fig. 11 continues. Otherwise, the procedure continues with 352. At 352, the procedure outputs one or more control signals to one or more of the actuators 74a-74d to adjust the positions of the outlet doors 72a-72d to provide a two-level outlet airflow. The procedure continues with C in Fig. 11.

[0082] With reference to Fig. 14, and with continued reference to Fig. Figures 1-10 illustrate a flowchart of a control procedure 400, which is implemented by the filter sensor monitoring module 27. Fig. 1 and Fig.10A according to the present disclosure. As can be understood from the disclosure, the order of operations within the procedure is not limited to sequential execution, as in Fig. 14 illustrates, limits, but can be carried out in one or more different sequences, depending on applicability and in accordance with the present disclosure.

[0083] In various embodiments, the method can be planned to be executed periodically or based on predetermined events, and can, for example, be executed based on a start or ignition-on status of the vehicle 10.

[0084] The procedure begins at 402. At 404, the procedure receives and processes the sensor signals from the first filter sensor 24 and the sensor signals from the second filter sensor 26. At 406, based on the received sensor signals, the procedure queries the airflow data storage 254 and determines the filter status 256 for the fine particulate filter 50. At 408, the procedure determines whether the filter status 256 indicates replacement. If the filter status 256 indicates that the fine particulate filter 50 needs to be replaced, the procedure outputs the status message 264 for the cell air quality control module 20 at 410. Otherwise, the procedure ends at 412.

[0085] While at least one embodiment has been presented in the preceding detailed description, it should be understood that there are numerous variations. It should also be understood that the embodiment or embodiments are merely examples and are not intended to limit the scope of protection, applicability, or configuration of the disclosure in any way. Rather, the preceding detailed description provides the person skilled in the art with a practical plan for implementing the embodiment or embodiments. It should be understood that various modifications to the function and arrangement of elements can be made without deviating from the scope of protection of the disclosure as set out in the appended claims and their legal equivalents.

Claims

[1] Method (300) for controlling the air quality in a passenger compartment (38), comprising the method (300): Output of one or more control signals by a processor to activate a motor, wherein the motor is operable to drive a blower (34) to generate an airflow for observation by a sensor (36) for fine solid particles, wherein the sensor (36) for fine solid particles generates sensor signals based on observation; Determining the concentration level of fine solid particles in the airflow based on sensor signals; and Outputting one or more control signals to an air quality system (16) connected to the passenger compartment (38) to generate an airflow into the passenger compartment (38) based on the determined concentration level, wherein the airflow into the passenger compartment (38) passes through a fine solid particle filter (50); Receiving and processing first filter sensor signals from a first filter sensor (24) connected to the filter (50) for fine solid particles; Receiving and processing second filter sensor signals from a second filter sensor (26) connected to the filter (50) for fine solid particles, wherein the second filter sensor (26) is located downstream of the first filter sensor (24); Determining a filter status based on the processing of the first filter sensor signals and the second filter sensor signals; and Output of a filter message to at least one user interface (18) in conjunction with the passenger compartment (38) based on the specified filter status; Determining an air quality level based on the determined concentration level; and Output of the specified concentration level and the specified air quality level to at least one user interface (18) in conjunction with the passenger compartment (38), wherein the at least one user interface (18) is in conjunction with a cover (202) which is arranged inside the passenger compartment (38). [2] Method (300) according to claim 1, further comprising determining a range of the determined concentration level, and wherein the output of one or more control signals to the air quality system (16) further comprises outputting one or more control signals to the air quality system (16) based on the determined range. [3] Method (300) according to claim 1, wherein the air quality system (16) comprises a heating, ventilation and cooling system in conjunction with the passenger compartment (38) and the output of one or more control signals comprises the output of one or more control signals to a motor of the heating, ventilation and cooling system to drive a heating, ventilation and cooling fan to generate the airflow into the passenger compartment (38) based on the determined concentration level, wherein the heating, ventilation and cooling fan is in fluid communication with the fine solids filter (50) such that the airflow passes through the fine solids filter (50) before the airflow enters the passenger compartment (38). [4] Method (300) according to claim 1, wherein the air quality system (16) includes an air intake system in conjunction with the passenger compartment (38) and the output of one or more control signals comprises outputting one or more control signals to an inlet door actuator (70) of the air intake system (58) to move an air intake door (68) based on the determined concentration level between a first, open position and a second, closed position. [5] Method (300) according to claim 1, wherein the air quality system (16) includes an outlet control system in conjunction with the passenger compartment (38) and the output of one or more control signals comprises outputting one or more control signals to one or more actuators (74a-74d) of the outlet control system to move one or more outlet doors (72a-72d) to direct the airflow into the passenger compartment (38) in one of several outlet airflow modes based on the determined concentration level. [6] Air quality control system (12) for a passenger compartment (38), comprising: a sensor system (22) for fine solid particles, which includes a motor, wherein the motor is operable to drive a blower (34) to generate an airflow for observation by a sensor (36) for fine solid particles, wherein the sensor (36) for fine solid particles generates signals based on the observation; an air quality system (16) connected to the passenger compartment (38), wherein the air quality system (16) includes a fine particulate filter (50) and a heating system. A ventilation and cooling system that is operable to generate an airflow through the fine solid particle filter (50) into the passenger compartment (38); and a control module that outputs one or more control signals to the motor of the fine solid particle sensor system (22) to drive the blower (34), receives and processes the sensor signals and determines a concentration level of fine solid particles based on the processing and outputs one or more control signals to the heating, ventilation and cooling system to generate the airflow based on the determined concentration level, further comprising: a first filter sensor (24) connected to the fine solids filter (50), which observes an airflow through the fine solids filter (50) and generates first filter sensor signals based on the observation; and a second filter sensor (26) connected to the fine solids filter (50), which observes an airflow through the fine solids filter (50) and generates second filter sensor signals based on the observation, wherein the second filter sensor (26) is located downstream of the first filter sensor (24), wherein the control module receives and processes the first filter sensor signals and the second filter sensor signals, determines a filter status based on the processing and based on the specified filter status, a filter message is sent to at least one user interface (18) that is connected to the passenger compartment (38); a first chemical sensor (28) with a carbon oxide sensor which monitors a concentration of carbon oxides in the air of the passenger compartment (38), including, but not limited to, carbon monoxide, carbon dioxide; a second chemical sensor (30) with a nitrogen oxide sensor that monitors a concentration of nitrogen oxides in the air of the passenger compartment (38), including, but not limited to, nitric oxide, nitrogen dioxide, nitrous oxide; wherein the control module determines an air quality level based on the specified concentration level and outputs the specified concentration level and the specified air quality level to at least one user interface (18) in conjunction with the passenger compartment (38); wherein the at least one user interface (18) is in conjunction with a cover (202) which is arranged inside the passenger compartment (38). [7] Air quality control system (12) according to claim 6, wherein the control module determines a range of the specified concentration level and outputs one or more control signals to the heating, ventilation and cooling system based on the specified range. [8] Air quality control system (12) according to claim 6, wherein the air quality system (16) further comprises an air inlet door system in conjunction with the passenger compartment (38) and the control module outputs one or more control signals to a door actuator of the air door system to move an air door between a first, open position and a second, closed position based on the determined concentration level. [9] Air quality control system (12) according to claim 6, wherein the air quality system (16) further comprises an outlet control system in conjunction with the passenger compartment (38) and the control module outputs one or more control signals to one or more actuators (74a-74d) of the outlet control system to move one or more outlet doors (72a-72d) to direct the airflow into the passenger compartment (38) in one of several outlet airflow modes based on the determined concentration level.

Images