motor vehicle

Abstract

Motor vehicle (1) with a body (2) forming a passenger compartment (3), wherein the body (2) has a roof (11), a floor, and body pillars (4, 5, 6), wherein the body pillars (4, 5, 6) connect the roof (11) to the floor, wherein the roof (11) has a roof opening (13) bordered by roof frame sections (14, 15), wherein the roof opening (13) is filled with a roof section (12) made of a transparent material, wherein at least one air conveying system (24, 25) is provided, which conveys air from the environment or, if appropriate, via at least one air conditioning system for generating conditioned air into a vehicle interior (41), wherein air outlet openings (16, 17) are formed on both sides of opposite longitudinal roof frame sections (14), each corresponding to the number of seat rows, wherein air ducts (31, 36, 38, 40) are provided, wherein the air conveying system (24, 25) conveys air to at least one air outlet opening (16, 17),wherein a control system for the air conveying system (24, 25) is provided, which adjusts the air conveying system (24, 25) from the existing number of air conveying systems (24, 25) in such a way that an upper region (19, 19a; 21, 21a) of a person (20, 23) located on a seat (18, 22) is supplied with an air flow rate L, m,16 with a predetermined air flow velocity v Luft, 16, 17 and is supplied with a temperature which corresponds to the temperature of the ambient air or, in the presence of at least one air conditioning system, corresponds to a selectable, cooled temperature, characterized in that - that means (42, 43) are provided which detect occupancy of the existing seats (18, 22) by a person (20, 23), - that one or two fans are used to convey the air flow L m are intended, - that when only one fan is arranged to convey the air flow L madjustable throttle devices are provided, via which the respective air quantity L m which emerges from the respective air outlet opening (16, 17), is adjustable in such a way that when only one seat is occupied, a different air flow rate L m according to the different distance y 16a,19 ≥ y 16b,19 exits from the corresponding opposite air outlet openings (16a, 16b; 17a, 17b) in such a way that a decreasing total air flow rate L m,16,(17),gesamt = L m,16a + L m,16b directly over a head (19) and / or an upper body (19a) of the person (20), and - that when both seats (18, 22) are occupied, an equal amount of air L is supplied below the corresponding air outlet opening (16a, 16b; 17a, 17b) mflows out of the respective air outlet opening (16a, 16b; 17a, 17b) in such a way that the respective air quantity L m by a corresponding position of a respective air guiding element (34, 35) and / or the air outflow speed v Luft, 16, 17 is adjusted so that the respective air volume L m each directly over a head (19, 19') and / or an upper body (19a, 19a') of the respective person (20, 20a') located on a seat (18, 22) at a speed v Luft, of a maximum of 0.1 m / s with a tolerance range of ± 10%.

Description

The invention relates to a motor vehicle according to the preamble of claim 1.From DE 199 48 223 A1 a motor vehicle is already known in which an air flow channel is formed in a cavity of an A-body pillar. By means of a corresponding structural design, it is possible for the respective front pillar or A-body pillar to have a flat nozzle which extends along the respective side edge of the front window. The air flowing out of the flat nozzle makes it possible to keep the front pane free from moisture misting.It is known from DE 23 18 097 A to form outflow arrangements on the A-body pillar and additionally on the roof frame, so that the side windows of a vehicle are also freed from moisture mist by means of the outflowing air.US 2014 / 0 244 106 A1 discloses a motor vehicle having means which detect a space occupancy on existing seats in order to be able to perform individual air conditioning.Motor vehicles are also known which have a sliding roof made of a transparent material. Motor vehicles are also known in which the roof or a roof region is formed from a transparent material. In the case of a roof made of a transparent material, however, a considerable heat input into the vehicle interior occurs via solar radiation and thus also a considerable heating of the vehicle occupants located in the vehicle interior.DE 10 2013 202 347 A1 discloses a motor vehicle having a body which forms a passenger compartment, wherein the body has a roof, a floor and body columns, wherein the body columns connect the roof to the floor, wherein the roof has a roof opening which is bordered by roof frame sections, wherein the roof opening is filled with a roof section made of a transparent material, wherein at least one air conveying installation is provided which conveys air from the environment or via optionally at least one air conditioning system for generating conditioned air into a vehicle interior, wherein air outflow openings are formed on both sides on opposite longitudinal roof frame sections in each case corresponding to the number of seat rows, wherein air lines are provided, wherein the air conveying installation conveys air to at least one air outflow opening, wherein a control system is provided for the air conveying installation, the air conveyor system of the present number of air conveyors is adjusted such that an upper region of a person located on a seat is supplied with a mass air flow at a predetermined air outflow velocity and at a temperature which corresponds to the temperature of the ambient air or corresponds to a selectable, cooled temperature in the presence of at least one air conditioning system.It is an object of the invention to provide a motor vehicle whose roof consists at least in sections of a transparent material, wherein efficient cooling of the persons located in the motor vehicle takes place via outflowing air.This object is achieved by the features of claim 1.A motor vehicle according to the invention has a body which forms a passenger compartment. The body has a roof, a floor, and body pillars, the body pillars connecting the roof to the floor. The roof has a roof opening surrounded by roof frame sections.The roof opening is filled with a roof section made of a transparent material. At least one air conditioning system is provided for generating conditioned air.On opposite longitudinal roof frame sections, air outflow openings are formed on both sides in each case corresponding to the number of seat rows. Furthermore, air lines are provided which convey conditioned and temperature-controlled air from at least one existing air conditioning system to at least one air outflow opening. A controller is provided for the present air conditioner, which sets each air conditioner among the present number of air conditioners so as to flow an upper portion of a person seated on a seat with a flow rate of air at a predetermined temperature and at a predetermined air flow rate.The motor vehicle according to the invention therefore comprises a body which forms a passenger compartment, wherein the body has a roof, a floor and body pillars, wherein the body pillars connect the roof to the floor, wherein the roof has a roof opening which is bordered by roof frame sections, wherein the roof opening is filled with a roof section made of a transparent material, wherein at least one air conveying installation is provided which conveys air from the environment or via optionally at least one air conditioning installation to generate conditioned air into a vehicle interior, wherein air outflow openings are formed on both sides on opposite longitudinal roof frame sections in each case corresponding to the number of seat rows, wherein air lines are provided, wherein the air conveying installation conveys air to at least one air outflow opening, wherein a control for the air conveying installation is provided, the air conveyor system of the present number of air conveyors is adjusted such that an upper region of a person located on a seat is supplied with a mass air flow at a predetermined air outflow velocity and at a temperature which corresponds to the temperature of the ambient air or corresponds to a selectable, cooled temperature in the presence of at least one air conditioning system.The motor vehicle according to the invention is distinguished in thatmeans are provided which detect a space occupancy on the existing seats by a person,a fan or two fans are provided for conveying the air flow,in the arrangement of only one blower for conveying the air flow, adjustable throttle devices are provided, by means of which the respective air quantity which exits from the respective air outflow opening can be adjusted in such a way that, when only one seat is occupied by the respective adjustable throttle device, a different air flow corresponding to the different distance exits from the corresponding opposite air outflow openings in such a way that a decreasing total air flow results directly via a head and / or an upper body of the person, andwherein, when the two seats are occupied below the corresponding air outlet opening, an equally large quantity of air flows out of the respective air outlet opening in such a way that the respective quantity of air is set by a corresponding position of the respective air guiding element and / or the air outflow speed in such a way that the respective quantity of air decreases in each case directly via a head and / or an upper body of the respective person who is located on a seat at a speed of at most 0.1 m / s with a tolerance range of ±10%.Thus, advantageously, one blower or two blowers are provided for conveying the air flow.The air outflow openings are formed in a housing, wherein the respective housing is provided in the respective roof frame longitudinal section. In the respective housing, at least one air guiding element is arranged pivotably via an actuatable drive.In the arrangement of only one blower, adjustable throttle devices are provided for conveying the air flow rate, by means of which throttle devices the respective air quantity that exits from the respective air outflow opening can be adjusted.When using only one blower and occupying only one seat by a person, a different air flow rate corresponding to the different distance advantageously exits from the corresponding opposite air flow orifices via the respective adjustable throttle device in the relevant two opposite air flow orifices such that a decreasing total air flow rate results directly across the head and / or an upper body of the person.Advantageously, when the two seats are occupied below the corresponding air outlet opening, an equally large quantity of air flows out of the respective air outlet opening, which in each case decreases directly via a head and / or an upper body of the respective person.In an advantageous embodiment, the means for detecting occupancy of a seat are pressure sensors.Advantageously, the invention makes it possible to create a motor vehicle in which, even in the event of a high heat input to an upper region of the persons seated in the motor vehicle, pleasant cooling of the persons located in the vehicle can be achieved efficiently at the most heavily affected regions such as head and upper body.An embodiment of the invention will be described below by way of example with reference to the drawings. The following are shown: FIG. 1 is a longitudinal section of a schematic illustration of a vehicle interior of a motor vehicle, from which the arrangement of air outflow nozzles in the roof frame at the level of the front seats and of the rear seats is illustrated, FIG. 2 ashows a first position of an air guiding element, which closes the respective air outlet opening, FIG. 2 bshows a second position of an air guiding element, in which the air guiding element is in a horizontal position, in which the respective air outlet opening is fully opened, so that a maximum amount of air can flow out, FIG. 2 cshows a third position of an air guiding element, wherein the respective air guiding element is pivoted upwards by an angle from the horizontal position shown in FIG. 2 b, FIG. 3 is a cross-sectional view of a vehicle interior at the level of a single person located on a front seat, wherein FIG. 3 shows the arrangement of air outflow nozzles in the roof frame at the level of the front seats and the rear seats, and FIG. 4 is a cross-sectional view of a vehicle interior corresponding to FIG. 3, wherein a person is seated in each case on both front seats.FIG. 1 shows a schematic illustration of a motor vehicle 1 in a longitudinal section. The motor vehicle has a body 2 which forms a passenger compartment 3. The body 2 has, among other things, on each side a front body pillar or A-pillar 4, a central body pillar or B-pillar 5 spaced apart therefrom and a rear body pillar or C-pillar 6 spaced apart therefrom on each vehicle side.The respective two A-pillars 4, B-pillars 5 and C-pillars 6 are connected to one another (in one piece) at their upper ends 7, 8, 9 via a roof frame longitudinal section 14 running in the vehicle longitudinal direction x. In the embodiment shown, a roof 11 of the motor vehicle 1 has a body roof opening 13, in which a roof section 12 made of a transparent material, glass or plastic is provided.The vehicle body roof opening 13 is formed by two opposite longitudinal roof frame sections 14 running in the vehicle longitudinal direction x and spaced apart in the vehicle transverse direction y, and by two transverse roof frame sections 15 running in the vehicle transverse direction y and spaced apart in the vehicle longitudinal direction x.In the embodiment shown in FIG. 1, two air outflow openings 16, 17 are formed in the one longitudinal roof frame section 14 on one side of the motor vehicle 1. The front air outflow opening 16 is provided at the level of front seats 18 in such a way that, in an adjustment range of the respective front seat 18, a mass air flow L m, 16 can flow onto a head 19 and an upper body 19 aof a person 20 located on the respective front seat 18.The length and orientation of the rear air outflow opening 17 as seen in the longitudinal direction x of the vehicle is formed in the roof frame longitudinal section 14 such that a head 21 and an upper body 21 aof a person 23 located on a rear seat bench or a rear individual seat 22 can be acted upon by an air flow rate L m, 17 flowing out of the air outflow opening 17.In the embodiment shown in FIG. 1, the supply or control of the air outflow openings 16, 17 with conditioned air takes place via two air conditioners 24, 25. In the embodiment shown, the second air conditioning system 25 is arranged in the rear region 28 of the motor vehicle 1 below a luggage compartment floor 29 in a stowage compartment 30.In the ON state of the air conditioner 24, cool or cooled air is supplied to the air outflow port 16 through a cavity 4a in the A-pillar 4 via a pipe 31, for example. In a respective housing 32, 33, in which the respective air outflow opening 16, 17 is formed, a pivotable air guiding element 34, 35 is arranged. The adjustment of the respective air guiding element 34, 35 is generally carried out automatically, for example via an electric drive, in order to set the required air flow rates L m, 16 and L m, 17.In FIG. 1, a further air line 36 is also shown, which is guided upward into the longitudinal roof frame section 14 via a sill 37 and a cavity 5 aof the B-pillar. Between the two housings 32 and 33, a further air line 38 is provided.In the embodiment shown in FIG. 1, the air conduit 36 is connected to an air flow distribution device 39. Via the air quantity distribution device 39, the air quantity flow L m conveyed through the air line 36 can be adjusted such that a partial air quantity L flows m,16 to the air outflow opening 16 and a partial air quantity L flows m,17 to the air outflow opening 17. Furthermore, for example, the air conveyed through the air line 36 can be completely deflected to the air outflow opening 16 or completely to the air outflow opening 17.The air of the air conditioner 25 is conveyed to the air outflow opening 17 via the air conditioner 25 located in the cavity or storage space 30 via an air line 40 arranged in a cavity 6 aof the C-pillar 6. Depending on the use of a manually controllable air conditioning system or a self-regulating air conditioning system, interior temperature sensors for constant cooling and automatic temperature control can be provided in a vehicle interior 41. The blower of the air conditioning system 24, 25 can have an adjustable air flow rate depending on the external temperature, for example.In the embodiment shown, sensors 42 and 43 are provided which report seat occupancy to the control of the respective air conditioning system 24, 25 via corresponding signals concerning the seat occupancy.FIGS. 2 a, 2 band 2 c show, by way of example, three different positions of an air guiding element 34, ( 35). In a position P 1 the respective air outlet opening 16, 17 is closed.In the position of the respective air guiding element 34, ( 35) shown in FIG. 2 b, the air guiding element 34, ( 35) is in a horizontal position P 2, in which the respective air outflow opening 16, 17 is fully open, so that a maximum amount of air can flow out.In the position P 3 shown in FIG. 2 c, the respective air guiding element 34, ( 35) is pivoted upwards by an angle α from the horizontal position P 2 shown in FIG. 2 b.FIG. 3 shows a predetermined setting of the respective air conditioning system 24, 25 and a predetermined setting of the opposing air guiding elements 34 a, 34 b( 35 a, 35 b). Due to these settings, when only a single person 20 is seated in a front seat 18, for example the driver seat, a sufficient, cooled total air flow L m, 16,gesamt= L m, 16a+ L m, 16b flows onto a head 19 and / or an upper body 19 aof the person 20, which is composed of the air flow L m, 16a and L m, 16. The two air guiding elements 34 aand 34 bare in the horizontal position P 2. shown in FIG. 3 b.In the situation shown in FIG. 3, in which only one person sits on a predetermined seat, an indirect, diffuse incident flow of the head 19 of the person 20 in question takes place corresponding to the different distance y 16a,19 ≥y 16b,19 by two air streams of different intensity. This results in a decreasing air flow directly across the head of the person 19 determined by the corresponding sensor 42, 43.In one embodiment, two fans are provided which supply air to the respective air outflow opening 16 a, 16 b( 17 a, 17 b). In another embodiment, only one blower is provided. In this case, there are throttle devices which adjust the air flow rate accordingly, so that the effect shown in FIG. 3 occurs.In FIG. 4, two persons 20, 20' are located on the front seats 18, 18'. The air delivery quantity L m, 16 of the respective air conditioning system 24, 25 and the air guiding elements 34 aand 34 bare set such that a sufficient quantity of air flows onto the respective head 19, 19' of the respective person 20, 20'.In FIG. 4, the respective air guiding element 34 a, 34 bis located in the inclined position P 3 for the air guiding element 34 ashown in FIG. 2 c. In the inclined position P 3' of the air guiding element 34b, the air guiding element 34b is inclined by the same angle amount but in the other direction than is shown in FIG. 2c.In the case of occupancy of both front (rear) seats 18 ( 22) shown in FIG. 4, the respective outflow of air quantity must take place uniformly. In the embodiment shown, the respective air guiding elements 34 a, 34 bis set in the inclined position P 3, P 3' such that the air flow rate is directed at a flat angle onto an inner surface 12 aof the transparent roof section 12.The flow of air deflected at the inner surface 12a of the transparent roof section 12 then flows onto the respective head 19, 19' of the respective person 20, 20'.The air outflow velocity v Luft,16 or v Luft,17 is in a range of v Luft, 16, 17= 0,1 m / s ±10%. Due to the low air outflow velocity v Luft, 16, 17 the air outflow openings 16 a, 16 b( 17 a, 17 b) and the lines 31, 36, 38, 40 required for this purpose can be designed to be small.

Claims

Motor vehicle (1) having a body (2) which forms a passenger compartment (3), wherein the body (2) has a roof (11), a floor and body columns (4, 5, 6), wherein the body columns (4, 5, 6) connect the roof (11) to the floor, wherein the roof (11) has a roof opening (13) which is bordered by roof frame sections (14, 15), wherein the roof opening (13) is filled with a roof section (12) made of a transparent material, wherein at least one air conveying installation (24, 25) is provided which conveys air from the environment or via optionally at least one air conditioning installation for generating conditioned air into a vehicle interior (41), wherein air outflow openings (16, 17) are formed on both sides on opposite longitudinal roof frame sections (14) in each case in accordance with the number of rows of seats, wherein air lines (31, 36, 38, 40) are provided, wherein the air conveying system (24, 25) conveys air to at least one air outflow opening (16, 17), wherein a control system is provided for the air conveying system (24, 25) which adjusts the air conveying system (24, 25) from the present number of air conveying systems (24, 25) such that an upper region (19, 19a; 21, 21a) of a person (20, 23) located on a seat (18, 22) is subjected to an inflow of air by a mass air flow L m,16 at a predetermined air outflow speed v Luft, 16, 17 and at a temperature which corresponds to the temperature of the ambient air or, in the presence of at least one air conditioning system, corresponds to a selectable, cooled temperature, characterized - in that means (42, 43) are provided which detect a space occupancy on the present seats (18, 22) by a person (20, 23), a blower or two blowers for conveying the air flow L m are provided, in the arrangement of only one blower for conveying the air flow L m adjustable throttle devices are provided, via which the respective air quantity L m, which exits from the respective air outflow opening (16, 17), is adjustable in such a way that when only one seat is occupied via the respective adjustable throttle device in the respective two opposite air outflow openings (16a, 16b; 17a, 17b), a different air flow L m corresponding to the different distance y 16a,19 ≥ y 16b,19 is thus adjusted from the corresponding opposite air outflow openings (16a, 16b; 17 a, 17 b) indicate that a decreasing total air flow rate L m,16,(17),gesamt= L m,16a+ L m,16b results directly via a head (19) and / or an upper body (19 a) of the person (20), and that - when the two seats (18, 22) are occupied below the corresponding air outflow opening (16 a, 16 b; 17 a, 17 b), an equal amount of air L m is in each case emitted from the respective air outflow opening (16 a, 16 b; 17 a, 17 b) are such that the respective air quantity L m is set by a corresponding position of a respective air guiding element (34, 35) and / or the air outflow velocity v Luft, 16, 17 such that the respective air quantity L m decreases directly via a head (19, 19') and / or an upper body (19 a, 19 a') of the respective person (20, 20 a') located on a seat (18, 22) with a velocity v Luft, of at most 0.1 m / s with a tolerance range of ±10%.Motor vehicle (1) according to Claim 1, characterized in that the air outflow openings (16, 17) are formed in a housing (32, 33), in that the respective housing (32, 33) is provided in the respective roof frame longitudinal section (14a, 14b), and in that at least one air guiding element (34, 35) is arranged in the respective housing (32, 33) such that it can be pivoted via an actuatable drive.Motor vehicle (1) according to one of Claims 1 to 2, characterized in that, when the two seats (18, 22) are occupied, the respective air guiding element (34, 35) deflects the outflowing air quantity L m in the direction of the roof (11) in such a way that the air quantity L m decreases in each case directly via a head (19, 19') and / or an upper body (19a, 19a') of the respective person (20, 23) located on a seat (18, 22) at a speed v Luft, of at most 0.1 m / s with a tolerance range of ±10%.Motor vehicle (1) according to one of the preceding claims, characterized in that the means for detecting an occupancy of a seat (18, 22) are pressure sensors (42, 43) and / or a belt buckle detection.

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