JP3991417B2 - Air conditioner for vehicles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle air conditioner.
[0002]
[Prior art]
A technology for remotely starting an air conditioner together with an engine by a remote control engine starter is known.
Also, if you get on and touch the steering wheel or sit on the seat, it may feel hot or cold depending on the season. In order to alleviate this problem, a technique is known in which steering is cooled or heated by flowing conditioned air through the hollow portion of the steering wheel (Japanese Utility Model Laid-Open No. 56-134271).
When both technologies are combined, a vehicle air conditioner can be obtained that, when the air conditioner is started together with the engine, cools or heats the steering to eliminate discomfort during boarding.
[0003]
[Problems to be solved by the invention]
However, since a precise mechanism is required to realize a technique for flowing the air-conditioned air through the hollow portion of the steering wheel, the manufacturing cost increases and is not practical.
The object of the present invention is to reduce the temperature difference between the body and the body when the vehicle air conditioner is started by a remote controller and get into the vehicle so that the body does not feel uncomfortable. It is in the provision of a vehicle air conditioner that can be used.
[0004]
[Means for Solving the Problems]
[Attached to the claim 1]
By the operation of the blower, an air flow toward the air outlet is generated in the duct, and air outside the vehicle interior is introduced into the duct from the air inlet.
The air conditioning means heats or cools the introduced air.
Air-conditioned air is blown out from the air outlet into the passenger compartment.
The blowing and out of the conditioned air blown out from the air outlet to the vehicle compartment, blowing state changing means driven by the drive means, to swing in a range which corresponds to the steering or the seat back position.
[0005]
When the start signal by operating the operation switch or the remote start signal by operating the remote control is input, the control means activates the blower and the air conditioning means to start the air conditioning operation of the vehicle air conditioner.
When the air conditioning operation is started by the remote start signal, the control means controls the driving means so that the temperature difference elimination control for blowing the conditioned air to the steering or seat back position is performed , and the blowing state changing means is changed to the steering or seat. Swing within the range that hits the backrest position.
As a result, the steering or seat back position, which may come into contact when the occupant gets on the vehicle, is heated or cooled by the conditioned air , and even if the body gets inside the vehicle and touches the vehicle inner member (steering or seat back) There is little temperature difference between them, and no discomfort occurs.
[0007]
[About claim 2 ]
The vehicle air conditioner has a configuration in which a cold heat source cools the introduced air using the power of the engine, and a heating source heats the introduced air using the exhaust heat of the engine. The air conditioning capacity of the means is increased.
When the air conditioning operation is started by the remote start signal, the control means makes the engine idling speed higher than when the air conditioning operation is started by the start signal.
As a result, the air conditioning capability of the air conditioning means is increased, and the location where the conditioned air hits is heated or cooled at an early stage. Therefore, when getting into the vehicle, there is little temperature difference between the location and the body, and no discomfort occurs.
[0008]
[About claim 3 ]
In the vehicle air conditioner, the temperature difference elimination control performed by the air-conditioning means when the air- conditioning operation is started by the remote start signal is as follows: (1) The voltage applied to the blower is set higher than when the air-conditioning operation is started by the start signal. or to increase the conditioned air quantity that is blown out into the room, (2) intends rows someone or both or to release the capacity limit of the air conditioning means increase the air-conditioning degree of the air-conditioning air blown into the passenger compartment.
As a result, the amount of air-conditioned air increases or the degree of air-conditioning increases, and the location where the air-conditioned air hits is heated or cooled early, so there is little temperature difference between the location and the body when getting into the car, and there is an uncomfortable feeling Does not occur.
[0009]
[About claim 4 ]
The air outlet for blowing the conditioned air into the passenger compartment of the duct is a foot outlet that blows the conditioned air to the feet of the occupant, a defroster outlet that blows the conditioned air to the inner surface of the windshield, and the conditioned air toward the occupant's face A plurality of opening / closing means for opening and closing each outlet is provided in the duct .
At the start of the air conditioning operation, the control means operates the plurality of opening / closing means, and when the air conditioning operation is started by the remote start signal, the air conditioning means performs the following temperature difference elimination control .
The plurality of opening / closing means are operated so that only the center face air outlet opens in the face mode, or the plurality of opening / closing means are operated so as to enter the bi-level mode in which the center face air outlet and the foot air outlet are opened.
[0010]
[About Claim 5 ]
The air outlet for blowing air-conditioned air into the passenger compartment of the duct is the passenger-side face outlet that blows air-conditioned air toward the passenger in the passenger seat and the driver-side face outlet that blows air-conditioned air toward the passenger in the driver's seat A plurality of opening / closing means for opening and closing these face outlets are provided in the duct .
At the start of the air conditioning operation, the control means operates the plurality of opening / closing means, and when the air conditioning operation is started by the remote start signal , the air conditioning means performs the following temperature difference elimination control.
(1) A plurality of dampers are controlled so that the passenger seat side face outlet is closed and the driver seat side face outlet is opened so that the conditioned air is blown out only from the driver seat side face outlet. This method is effective when the part where the conditioned air is blown out is a steering or a backrest.
(2) A plurality of dampers are controlled so that both face air outlets are opened so that conditioned air is blown out from both face air outlets.
This method may be used when conditioned air is blown out to two parts, or when conditioned air is blown out from both face outlets to the same part.
[0011]
[About claim 6 ]
When starting an air conditioner for a vehicle by remote control, if an occupant is in the vehicle (including the case of getting on from the beginning), is an open / close signal indicating that the vehicle door has been opened / closed? , square members seated signal indicating that sitting on the seat is inputted into the control means.
Further, when the temperature in the passenger compartment falls within a predetermined range or when a predetermined time has elapsed since the input of the remote start signal, heating and cooling of different parts such as the steering and the backrest are completed.
In such a case, the control for blowing out the conditioned air to different parts is terminated.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention (corresponding to claims 1 to 6 ) will be described with reference to FIGS.
As shown in FIG. 1 (overall view of the vehicle air conditioner), the vehicle air conditioner A is an air blower provided with a plurality of air outlets (described later) for blowing air-conditioned air into the passenger compartment 2. It has a duct 1. A cooling heat exchanger 3 for cooling the introduced air (vehicle interior air n, vehicle exterior air g) and heating air for heating the introduced air (vehicle interior air n, vehicle exterior air g) are provided in the air duct 1. A heat exchanger 4 is provided.
In each of the air outlets, a louver 5 (a left and right louver 51 and an upper and lower louver 52 in FIG. 3) that is a deflection member for changing the blowing direction of the conditioned air is attached to each face outlet. It is rocked by a rocking mechanism 7 (left-right rocking mechanism 71 and vertical rocking mechanism 72) controlled by the ECU 6 (control means).
[0013]
A blower 11 is disposed at the upstream end of the blower duct 1, and an inside / outside air switching box 12 is disposed upstream of the blower 11.
The blower 11 includes a fan 111 housed in the fan case 10 and a fan motor 112 that rotationally drives the fan 111. The blower 11 rotates at a rotational speed corresponding to a voltage (applied voltage VA) applied to the fan motor 112. The fan 111 rotates with the air volume. The applied voltage VA determined by the ECU 6 is applied to the fan motor 112 via the motor drive circuit 61.
[0014]
The inside / outside air switching box 12 has an inside air introduction port 121 for introducing vehicle interior air n (inside air) and an outside air introduction port 122 for introducing vehicle compartment outside air g (outside air). The inside / outside air switching box 12 is rotatably mounted with an inside / outside air switching door 123 that selectively switches between the inside air introduction port 121 and the outside air introduction port 122.
The inside / outside air switching door 123 is driven by an actuator 124 such as a servomotor, and the actuator 124 is energized and controlled by an ECU 6 (air conditioner control device) described later.
[0015]
The cooling heat exchanger 3 is disposed in the blower duct 1 downstream of the blower 11 so as to block the entire cross section of the passage. Moreover, the heat exchanger 4 for heating penetrates the partition plate 40, and is distribute | arranged over the inside of the 2nd air passage 14 from the 1st air passage 13 mentioned later.
In this embodiment, the cooling heat exchanger 3 is an evaporator of a refrigeration cycle, and cools blown air by heat exchange with a low-temperature refrigerant passing through the inside of the evaporator. In the present embodiment, the heating heat exchanger 4 is a hot water heater core that uses engine cooling water as a heat source, and heats the blown air by heat exchange with engine cooling water (hot water) that passes through the heater core.
The air duct 1 includes a first air passage 13 for blowing air-conditioned air to a driver's occupant (hereinafter referred to as a driver) on the downstream side of the cooling heat exchanger 3 by a partition plate 40, and a passenger's occupant (hereinafter referred to as a passenger). Branching to the second air passage 14 for blowing out the conditioned air.
[0016]
The first air passage 13 has a first bypass passage 131 that bypasses the heat exchanger 4 for heating, and adjusts the temperature of the blown air that is blown to the driver through the first air passage 13. A door 41 is provided. The first air mix door 41 adjusts the ratio of the amount of air passing through the first bypass passage 131 and the amount of air passing through the heating heat exchanger 4 disposed in the first air passage 13. The actuator 411 is driven by an actuator 411 such as a servo motor, and the actuator 411 is energized and controlled by the ECU 6.
The second air passage 14 has a second bypass passage 141 that bypasses the heat exchanger 4 for heating, and a second air mix that adjusts the temperature of the blown air blown out to the passenger through the second air passage 14. A door 42 is provided. The second air mix door 42 adjusts the ratio of the amount of air passing through the second bypass passage 141 and the amount of air bypassing the heating heat exchanger 4 disposed in the second air passage 14. It is driven by an actuator 421 such as a servo motor, and the actuator 421 is energized and controlled by the ECU 6.
[0017]
On the downstream side of the air duct 1, a driver-side face duct 15 that leads to the first air passage 13, a defroster duct 16, a driver-side foot duct 17, a passenger-side face duct 18 that leads to the second air passage 14, and the passenger side A foot duct 19 is connected.
The driver-side face duct 15 is a passage for mainly blowing cool air toward the upper body of the driver, and is branched into two branches from the middle of the passage. One side is connected to a driver-side center face air outlet 151 that opens at a substantially central portion of the dashboard 50 disposed on the front surface of the vehicle interior, and the other side is a driver-side side face air outlet that opens at the right end of the driver side of the dashboard 50. 152 (see FIG. 2). The defroster duct 16 is a passage for mainly supplying warm air toward the windshield of the vehicle, and is connected to a defroster outlet 161 opened on the upper surface of the dashboard 50.
The driver-side foot duct 17 is a passage for mainly supplying warm air toward the feet of the driver, and is connected to a driver-side foot outlet 171 that opens near the feet of the driver (see FIG. 2).
[0018]
Further, the driver-side face duct 15 is provided with a mode switching door 153 that selectively opens and closes the driver-side center face air outlet 151 and the driver-side side face air outlet 152, and the defroster duct 16 and the driver-side foot duct 17 are connected to each other. Mode switching doors 162 and 172 that open and close the respective openings are provided in the upstream openings. Depending on the open / closed state of each of these mode switching doors 153, 162, 172, well-known air outlet modes such as a foot mode, a bi-level mode, a face mode, a differential mode, and a foot / differential mode are obtained.
The mode switching doors 153, 162, 172 are driven by actuators 154, 173 such as servo motors, and the actuators 154, 173 are energized and controlled by the ECU 6.
[0019]
The passenger-side face duct 18 is a passage for mainly supplying cold air toward the upper body of the passenger, and is branched into a fork from the middle of the passage. One of the passages is connected to a passenger-side center face air outlet 182 that opens to a substantially central portion of the dashboard 50, and the other of the passages is connected to a passenger-side side face air outlet 181 that opens to the passenger seat end of the dashboard 50. ing. The passenger-side foot duct 19 is a passage for mainly supplying warm air toward the foot of the passenger, and is connected to a passenger-side foot outlet 191 that opens near the foot of the passenger.
[0020]
The passenger-side face duct 18 is provided with a mode switching door 183 that can selectively open and close the passenger-side center face outlet 182 and the passenger-side side face outlet 181, and an upstream opening of the passenger-side foot duct 19. Is provided with a mode switching door 192 for opening and closing the opening. Depending on the open / closed state of each of these mode switching doors 183 and 192, well-known air outlet modes such as a foot mode, a bi-level mode, and a face mode are obtained. Each mode switching door 183, 192 is driven by an actuator 184 such as a servo motor, and the actuator 184 is energized and controlled by the ECU 6.
It should be noted that the mode switching door 153 provided in the driver side face duct 15 and the mode switching door 183 provided in the punger side face duct 18 are arranged such that when the foot mode or the foot differential mode is selected, It operates to close 182 and open the side face outlets 152 and 181 side.
[0021]
As shown in FIG. 3, the driver side center face air outlet 151, the driver side side face air outlet 152, the passenger side center face air outlet 182 and the passenger side side face air outlet 181 can change the direction of the blowing air. A louver 51 and an upper and lower louver 52 are mounted.
[0022]
The left / right swing louver 51 and the up / down swing louver 52 are a left / right swing mechanism 71 for changing the direction of the blown wind to the left / right direction (vehicle width direction), and a vertical swing mechanism 72 for changing the direction of the blown wind to the up / down direction. (See FIG. 3). Each of the outlets 151, 152, 182, and 181 is provided with a shutter mechanism (not shown) for opening and closing each of the outlets 151, 152, 182, and 181. The air outlets 151, 152, 182, and 181 can be opened and closed by operating the shutter mechanism by operating levers (see FIG. 7) provided in the vicinity of 182, 181, respectively.
[0023]
As shown in FIG. 4, the left / right swing mechanism 71 includes a plurality of left / right swing louvers 51 capable of adjusting the angle in the left / right direction, a stepping motor 711 that generates a rotational force that drives each left / right swing louver 51, and a stepping motor 711. The arm 712 and the link lever 713 for transmitting the rotational force to the left and right louvers 51, and a slide.
[0024]
As shown in FIG. 5, the vertical swing mechanism 72 includes a plurality of vertical swing louvers 52 capable of adjusting the angle in the vertical direction, a stepping motor 721 that generates a rotational force for driving the vertical swing louvers 52, and a stepping It comprises an arm 722 and a link lever 723 for transmitting the rotational force of the motor 721 to each vertical swing louver 52, and a slide.
[0025]
The positions of the swing louvers 51 and 52 (the positions of the link levers 713 and 723) are detected by the resistance values of the potentiometers 714 and 724 connected to the link levers 713 and 723, and the ECU 6 detects the positions of the swing mechanisms 71 and 72. The stepping motors 711 and 721 are energized and controlled.
[0026]
The stepping motors 711 and 721 rotate at a rotation direction and a rotation speed corresponding to the direction and number of pulses of the pulse signal sent from the ECU 6, respectively.
Further, a common lever is connected to each swing louver 51, 52, and the direction of each swing louver 51, 52 can be changed in the left-right and up-down directions by manual operation.
[0027]
The ECU 6 incorporates a microcomputer that stores a control program related to air conditioning control, various arithmetic expressions, and the like, performs arithmetic processing on the following signals based on the control program, and performs various actuators and motor drive circuits based on the processing results. 61 is energized and controlled.
Each operation signal sent by operating the air conditioner control panel. Sensor signals output by various sensors described below for air conditioning control. Various sensors are shown below.
(Various sensors)
The inside air sensor 62 that detects the temperature Tr of the passenger compartment air, the outside air sensor 63 that detects the outside air temperature Tam, the solar radiation sensor 64 that detects the amount of solar radiation Ts, and the temperature TE of the air that has passed through the cooling heat exchanger 3 (evaporator). A post-evaporation temperature sensor 65 for detecting, and a water temperature sensor 66 for detecting a cooling water temperature TW supplied to the heating heat exchanger 4 (heater core).
[0028]
The air conditioner operation panel 60 is incorporated in a dashboard 50 on the front side of the vehicle interior (see FIG. 6). Various switches shown below are disposed on the air conditioner operation panel 60.
(Various switches)
A temperature setting switch 601 on the driver side, a temperature setting switch 602 on the passenger side, an auto switch 603 that instructs the ECU 6 to perform automatic control, an off switch 604 that instructs the ECU to stop operating, and an air volume level of the blower 11 are set. Blower switch 605.
[0029]
In addition, the DUAL switch 606 for independently controlling the temperature on the driver side and the passenger side, the MODE switch 607 for switching the outlet mode, the A / C switch 608 for instructing start / stop of the refrigeration cycle, and the inlet mode are switched. An R / F switch 609, a FrDEF switch 610 for preventing the front window from being fogged, and a swing switch 612 for operating the left and right swing louvers 51 and the upper and lower swing louvers 52.
[0030]
Next, air conditioning control by the ECU 6 will be described based on the flowcharts shown in FIGS.
When the auto switch 603 of the air conditioner control panel 60 is manually turned on, air conditioning control is performed according to the control program for normal control (steps s100 to s200 shown in FIG. 7).
[0031]
First, the data processing memory is initialized (step s100).
Subsequently, the set temperature (driver side and passenger side) set by the temperature setting switch on the air conditioner operation panel and each sensor signal are read and stored in the data processing memory (step s110).
Next, based on the read data and the following formulas (1) and (2), the driver-side target blowing temperature TAO (Dr) and the passenger-side target blowing temperature TAO (Pa) are calculated (step s120). ).
[0032]
[Expression 1]
TAO (Dr) = Kset · Tset (Dr) −Kr · Tr−Kam−Ks · Ts + Kd (Dr) · {Cd (Dr) + Ka (Dr) · (10−Tam)} × {Tset (Dr) −Tset ( Pa)} + C …………………………… ▲ 1 ▼
[0033]
[Expression 2]
TAO (Pa) = Kset · Tset (Pa) −Kr · Tr−Kam · Tam−Ks · Ts + Kd (Pa) · {Cd (Pa) + Ka (Pa) · (10−Tam)} × {Tset (Pa) − Tset (Dr)} + C ………………… ▲ 2 ▼
[0034]
Tset (Dr) and Tset (Pa) are temperatures set by the temperature setting switches on the driver side and the passenger side, respectively. Kset, Kr, Kam, Ks, Kd (Dr), and Kd (Pa) are The temperature setting gain, the inside air temperature gain, the outside air temperature gain, the solar radiation gain, the driver side temperature correction gain, the gain for correcting the degree of influence on the air conditioning temperature on the passenger side, Cd (Dr), and Cd (Pa) are , A constant according to the degree of influence, and C represents a correction gain.
[0035]
Further, Ka (Dr) and Ka (Pa) are gains for correcting the degree of influence of the outside air temperature Tam on the air conditioning temperatures on the driver side and passenger side, and Cd (Dr) and Cd (Pa) are the above-mentioned effects. A constant corresponding to the degree, C represents a correction constant. Each value of Ka (Dr), Ka (Pa), Cd (Dr), and Cd (Pa) is determined by various parameters such as the shape and size of the vehicle and the direction of the blown air blown from each outlet. Change.
Subsequently, in step s120, based on the calculated TAO (Dr) and TAO (Pa), the control voltage VA (voltage applied to the fan motor 112) of the blower 11 is calculated (step s130). The control voltage VA is obtained by averaging the control voltages VA (Dr) and VA (Pa) respectively adapted to TAO (Dr) and TAO (Pa) calculated in step s120.
Subsequently, based on the TAO (Dr) and TAO (Pa) calculated in step s120, the air outlet mode on the driver side and the air outlet mode on the passenger side are respectively determined from the air outlet mode characteristic diagram shown in FIG. (Step s140).
[0036]
Subsequently, when the foot mode or the foot differential mode is selected by step s140 or manual operation on the air conditioner operation panel 60, the operation pattern of the louvers 5 disposed at the side face outlets 152 and 181 is calculated. (Step s150). When the foot mode and the foot / diff mode are selected, the mode switching doors 153 and 183 close the center face air outlet sides 151 and 182 and open the side face air outlet sides 152 and 181, so that the side face air outlet 152 , 181 also blows air.
[0037]
After the operation pattern of the louver 5 is determined in step s150, in order to realize the target blowing temperature TAO (Dr) on the driver side and the target blowing temperature TAO (Pa) on the passenger side, the following equations (3) and (4) Based on ▼, the opening degree SW (Dr)% of the first air mix door 41 and the opening degree SW (Pa) of the second air mix door 42 are calculated (step s160).
Note that when the auto switch 603 is manually turned on, the operation pattern of the louver 5 is not set so that the conditioned air is blown to the steering or seat back position.
[0038]
[Equation 3]
SW (Dr) = {TAO (Dr) −TE)} × 100 / (TW−TE) (3)
[Expression 4]
SW (Pa) = {TAO (Pa) −TE)} × 100 / (TW−TE) …… (4)
Subsequently, a control signal is output to the motor drive circuit 61 so that the control voltage VA obtained in step s130 is applied to the blower 11 (fan motor) (step s170).
Subsequently, a control signal is output to the actuators 411 and 421 that drive the air mix doors 41 and 42 so that the target opening degree SW (Dr) and SW (Pa) calculated in step s160 are obtained (step s180). .
Subsequently, control signals are output to the actuators 154 and 173 so that the driver-side air outlet mode and the passenger-side air outlet mode determined in step s140 are obtained (step s190).
In step s200, a control signal is output to each of the stepping motors 711 and 721 so that the operation pattern of the louver 5 calculated in step s150 is obtained.
[0039]
On the other hand, when the vehicle air conditioner 1 is activated by an engine start signal from the remote control engine starter (air conditioner is set to ON), the control program of steps s1 to s11 shown in FIG. 10 is executed.
[0040]
In step s1, it is determined whether or not the temperature in the passenger compartment is in a steady state (over 10 ° C. and below 30 ° C.). If it is determined that it is not a steady state (NO in step s1), the process proceeds to step s2.
[0041]
In step s2, it is determined whether or not a door open / close signal has been input (the door has been opened and the vehicle has been boarded). If not input (NO), control is performed to blow out the steering 81 (steps s3 to s8). To do.
However, since there is a possibility that the driver 80 operates the remote control engine starter from the inside of the vehicle, it is desirable that the following determination is made.
If a seat belt wearing signal or a seating signal is detected, it is assumed that the passenger is already in the vehicle and the routine proceeds to normal control (step s100).
If any one of the operation switches in the passenger compartment is operated, it is assumed that the vehicle is already in the vehicle and the routine proceeds to normal control (step s100).
[0042]
The blower air volume is maximized (step s3), the inside / outside air switching is performed in the inside air mode (step s4), the blowing mode is B / L or FACE mode (step s5), and the blowing temperature limit is released (step s6).
In step s7, the control is started to turn the louver 5 in the direction of the steering 81 and swing the blown wind in a range where it hits the steering 81 (see FIG. 11). At this time, it is preferable that the face outlets 181 and 182 (passenger seat side grilles) be directed toward the steering 81 or closed.
In step s8, the engine speed is increased.
The control in steps s3 to s6 and s8 is for effectively changing the steering temperature by blowing the conditioned air to the steering 81.
[0043]
When the cooling water temperature is less than 60 ° C. (NO in step s9), until 5 minutes have passed since the air conditioner was turned on (NO in step s10), or when the temperature in the passenger compartment is 10 ° C. or lower or 30 ° C. or higher ( In step s11 NO), the process returns to step s2 to continue the blowout control to the steering 81.
[0044]
Note that when the blow-out control to the steering 81 is completed (YES in steps s9, s10, and s11), the routine does not immediately shift to the normal control (step s100), but shifts to the control to blow out to the seat back 82 for a while. (See FIG. 12).
Further, when the outside air temperature is equal to or lower than a predetermined value, the mode may be switched to the DEF mode.
[0045]
Next, advantages of the present embodiment will be described.
[A] When the air conditioning operation is started by starting the engine with the remote controller, the ECU 6 controls the louver 5 so that the conditioned air is blown out to the steering 81 and the backrest 82.
As a result, the steering 81 and the backrest 82 are heated or cooled by the conditioned air, and even if the driver 80 gets into the vehicle and touches the steering 81 or the backrest 82, the temperature difference between the two and the discomfort does not occur.
[0046]
[A] When the air-conditioning operation is started by starting the engine with the remote controller, the ECU 6 maximizes the blower air volume (step s3), the inside air mode (step s4), the blowing mode is B / L or FACE mode (step s5), The blowout temperature limit is released (step s6), the louver 5 is turned in the direction of the steering 81 and swung in the range where the blown air hits the steering 81 (step s7), and the engine speed is increased (step s8).
Thus, the steering 81 and the backrest 82 can be efficiently heated or lowered in a short time.
[0047]
[C] During warm-up control (steps s3 to s8), normal control when the coolant temperature reaches 60 ° C. or higher, the vehicle compartment temperature becomes 10 ° C. to 30 ° C., or 5 minutes have elapsed from A / C ON It is the structure which returns to.
For this reason, wasteful consumption of energy can be prevented, and deterioration of the steering 81 and the backrest 82 due to warm-up control can be prevented. In addition, the passenger compartment can be evenly air-conditioned.
[0048]
The present invention includes the following embodiments in addition to the above embodiments.
When the blowing state changing means is the concentrated diffusion louver 500 shown in FIGS. 13 and 14, the wind direction change to the steering or the backrest is realized on the concentrated blowing side (upper side in FIG. 14).
[Brief description of the drawings]
FIG. 1 is a structural explanatory view of a vehicle air conditioner according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram showing a state near the dashboard of the vehicle.
FIG. 3 is an overall view of a louver and a swing mechanism.
FIG. 4 is a diagram illustrating the structure of a left / right swing mechanism.
FIG. 5 is an explanatory diagram of the structure of a vertical swing mechanism.
FIG. 6 is a front view (bottom) of the face outlet (upper) and the air conditioner operation panel.
FIG. 7 is a flowchart showing a control program of the ECU.
FIG. 8 is a blower characteristic diagram for determining the blower voltage of the blower.
FIG. 9 is an air outlet mode characteristic diagram for determining the air outlet mode.
FIG. 10 is a flowchart showing an ECU control program when an air-conditioning operation is started in the remote control engine starter.
FIG. 11 is an explanatory diagram showing a state of warm-up control in which air-conditioned air is directed toward the steering.
FIG. 12 is an explanatory diagram showing a state of control for applying conditioned air toward the backrest.
FIG. 13 is an explanatory diagram of a concentrated diffusion louver.
FIG. 14 is an explanatory diagram showing a concentration mode (upper) and a diffusion mode (lower) of a concentrated diffusion louver.
[Explanation of symbols]
A Vehicle air conditioner 1 Air duct (duct)
2 Cabin 3 Cooling heat exchanger (air conditioning means, cold source)
4 Heat exchanger for heating (air conditioning means, heating source)
5 louvers (outflow state changing means)
6 ECU (control means)
7 Swing mechanism (drive means)
11 Blower 81 Steering (different parts)
82 Seat back position (different parts)
121 Inside air inlet (air inlet)
122 Outside air inlet (air inlet)
151 Center face outlet (air outlet, driver's side face outlet)
152 Side face outlet (air outlet, driver side face outlet)
153 Mode switching door (damper)
161 Defroster outlet 162 Mode switching door (damper)
171 Driver side foot outlet 172 Mode switching door (damper)
181 Side face outlet (air outlet, passenger side face outlet)
182 Center face outlet (air outlet, passenger side face outlet)
183 Mode switching door (damper)
191 Passenger side foot outlet 192 Mode switching door (damper)
500 Concentrated diffusion louver 603 Operation switch n Car interior air (air)
g Outside air in the passenger compartment (air)
Tr temperature (cabin temperature)

Claims (6)

A duct having an air inlet for introducing air outside the vehicle interior and an air outlet for blowing air-conditioned air into the vehicle interior;
A blower for generating an air flow toward the air outlet in the duct;
Air conditioning means capable of heating or cooling the introduced air;
Blowing state changing means capable of changing the blowing direction of the conditioned air blown out from the air outlet;
Driving means for driving the blow condition changing means,
When remote start signal from the start signal or the remote control by the operation switch is input, together to start air conditioning operation in the operating state of the blower and the air-conditioning unit, the air conditioning system and a control means for controlling the driving means ,
When the air conditioning operation is started by the remote start signal, the control means controls the driving means so as to perform temperature difference elimination control for blowing the conditioned air to a steering or seat back position , and the blowing state A vehicle air conditioner characterized in that the changing means is swung within a range corresponding to the steering or the seat back position . The air-conditioning means has a cold heat source that cools the introduced air using the power of the engine, and a heating source that heats the introduced air using the exhaust heat of the engine,
At the start of air-conditioning operation, the control means puts the engine into an operating state,
The temperature difference elimination control performed by the air-conditioning means when the air-conditioning operation is started by the remote start signal increases the idling rotational speed of the engine as compared with the case where the start signal is used. Vehicle air conditioner. The temperature difference elimination control performed by the air conditioning unit when the air conditioning operation is started by the remote start signal is
(1) Whether the air-conditioning operation is started by the start signal, the voltage applied to the blower is increased to increase the amount of air-conditioned air blown into the passenger compartment, or
(2) The vehicle air conditioner according to claim 1, wherein one or both of releasing the capacity restriction of the air conditioning means and increasing the degree of air conditioning of the conditioned air blown into the passenger compartment is performed . The air outlet for blowing the conditioned air into the passenger compartment of the duct is a foot outlet for blowing the conditioned air to the feet of the occupant, a defroster outlet for blowing the conditioned air to the inner surface of the windshield, and the face direction of the occupant A center face outlet for blowing out the air-conditioned air;
In the duct, a plurality of opening and closing means for opening and closing each outlet is provided,
At the start of air conditioning operation, the control means operates the plurality of opening and closing means,
The temperature difference elimination control performed by the air conditioning unit when the air conditioning operation is started by the remote start signal is
(1) operating the plurality of opening / closing means so as to be in a face mode in which only the center face outlet is opened, or
(2) The vehicle air conditioner according to claim 1, wherein the plurality of opening / closing means are operated so as to be in a bi-level mode in which the center face air outlet and the foot air outlet are opened . An air outlet for blowing air-conditioned air into the passenger compartment of the duct includes a passenger-side face outlet that blows the air-conditioned air toward the passenger in the passenger seat, and a driver seat that blows the air-conditioned air toward the passenger in the driver's seat Side face outlet,
In the duct, a plurality of opening and closing means for opening and closing each outlet is provided,
At the start of air conditioning operation, the control means operates the plurality of opening and closing means,
The temperature difference elimination control performed by the air conditioning unit when the air conditioning operation is started by the remote start signal is
(1) controlling the plurality of opening and closing means so as to close the passenger seat side face outlet and open the driver seat side face outlet; or
(2) The vehicle air conditioner according to claim 1, wherein the plurality of opening / closing means are controlled so that both the face outlets are opened . An open / close signal indicating that the vehicle door has been opened / closed, an operation signal indicating that any of the controllers in the passenger compartment has been operated, or an occupant sitting on the seat This is a case where a seating signal is input, the temperature of the engine cooling water rises to a predetermined value or more, the temperature in the passenger compartment falls within a predetermined range, or when a predetermined time has elapsed from the input of the remote start signal. The vehicle air conditioner according to any one of claims 1 to 5, wherein the temperature difference elimination control is terminated when at least one is established .

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