JP2019188975A - Vehicular air conditioner and its control method - Google Patents

Abstract

To provide a vehicular air conditioner and its control method capable of inhibiting incomplete closure of a door when the door is closed, as well as preventing entry of dust and insects from the outside of a cabin even when a door opening time period is prolonged.SOLUTION: A vehicular air conditioner 100 comprises: an internal/external air switching damper including a damper switching actuator 41; a control unit 9; and a door opening/closing sensor 11. The control unit 9 comprises: a first timer 9a. The control unit sets the internal/external air switching damper into an interim mode when a door is open while an IG switch 10 is OFF, and activates the timer 9a. Then, the door is continued to be in an open state. Upon elapse of a predetermined time of the first timer 9a, the control unit 9 switches the internal/external air switching damper into an external air introducing mode.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a vehicle air conditioner and a control method thereof.

  The vehicle is provided with a vehicle air conditioner for controlling the environment such as the temperature in the passenger compartment. The vehicle air conditioner has an inside / outside air switching damper for switching between an outside air introduction mode and an inside air circulation mode. When the occupant selected the outside air introduction mode with the air conditioning control switch provided in the passenger compartment, the valve body posture was set so that the inside / outside air switching damper could introduce outside air into the passenger compartment, and the inside air circulation mode was selected. In this case, the posture of the valve body is set so that the inside air is introduced and circulated in the vehicle interior.

  By the way, in recent years, the airtightness of the passenger compartment tends to be increased. Thus, in a vehicle in which the airtightness of the passenger compartment is enhanced, when the door is closed, the amount of air escaped from the door opening due to the decrease in the opening area of the door is reduced, and the vehicle body other than the door opening Since the amount of air passing through the gap is extremely small, the door is difficult to close. As a result, a half-door state may occur.

  Patent Document 1 discloses a technique for suppressing the occurrence of a half-door state when such a door is closed. In the technique disclosed in Patent Document 1, the valve body of the internal / external air switching damper can be configured to take an intermediate state that is an intermediate position between the posture when introducing the external air and the posture when circulating the internal air. . In the technique disclosed in Patent Document 1, when the door of the vehicle is opened, the inside / outside air switching damper is set to the intermediate state, and the valve body is set in the posture immediately before the door is opened after the door is closed. The configuration of returning to the state is adopted.

JP 2015-39995 A

  However, in the technique disclosed in Patent Document 1, since the inside / outside air switching damper is in the intermediate state from when the door is opened until the door is closed, the inside / outside air switching damper is passed through the inside / outside air switching damper during this period. There is a concern that garbage, insects, etc. intrude into the passenger compartment. That is, in the technique disclosed in Patent Document 1, the outside air introduction port and the inside air introduction port are in continuous communication from the time when the door is opened until the door is closed. There is concern that garbage and insects may enter the passenger compartment through the inside air inlet.

  The present invention has been made to solve the above-described problems, and can prevent the door from being insufficiently closed when the door is closed, and the time during which the door is open can be suppressed. It is an object of the present invention to provide a vehicle air conditioner and a control method thereof that can prevent intrusion of dust and insects from the outside of the passenger compartment even when the vehicle is long.

  An air conditioner for a vehicle according to an aspect of the present invention includes an outside air introduction mode for introducing air from outside the vehicle compartment of the vehicle, an inside air circulation mode for circulating air inside the vehicle compartment of the vehicle, and the outside of the vehicle compartment of the vehicle. According to the detection from the door open / close detection unit, an internal / external air switching unit capable of switching between an intermediate mode for communicating with the vehicle interior, a door open / close detection unit for detecting an open / closed state of the door of the vehicle An air conditioning control unit that receives information and issues a command of a mode to be executed to the inside / outside air switching unit, and the air conditioning control unit detects when the door opening / closing detection unit detects an open state of the door. The door open / closed detection unit is opened by issuing a command to switch to the intermediate mode to the inside / outside air switching unit and issuing a command to switch to the intermediate mode. Detection state, when it is continued over the first hour, which is set in advance, issues a command instructing to switch to the external air introduction mode for said outside air switching unit.

  In the vehicle air conditioner according to the above aspect, when the door is opened, the inside / outside air switching unit is set to the intermediate mode, and the outside of the passenger compartment and the passenger compartment are in communication with each other. Therefore, in the vehicle air conditioner according to the above aspect, when the door is closed before the first time elapses, the closed state of the door becomes insufficient due to the maintenance of the communication state (so-called half-door). State).

  In the vehicle air conditioner according to the aspect described above, when the door is open for the first time, the inside / outside air switching unit is set to the outside air introduction mode. Also in this case, the outside of the passenger compartment and the passenger compartment are in communication with each other via the outside air introduction path. Therefore, also in this case, in the vehicle air conditioner according to the above aspect, it is possible to prevent the door from being closed insufficiently (so-called half-door state).

  In the vehicle air conditioner according to the aspect described above, when the door is open for the first time, the inside / outside air switching unit is set to the outside air introduction mode. In a vehicle, a filter is usually provided in the outside air introduction path. Therefore, in the vehicle air conditioner according to the above aspect, compared with the technique disclosed in Patent Document 1 in which the door is maintained in the intermediate mode when the door is in the open state, the vehicle interior to the vehicle interior is changed via the inside / outside air switching unit. Can prevent the invasion of garbage and insects.

  Therefore, in the vehicle air conditioner according to the aspect described above, it is possible to prevent the door from being closed insufficiently when the door is closed, and to prevent dust and dirt from outside the vehicle compartment even when the door is open for a long time. Insects can be prevented from entering.

  In the vehicle air conditioner according to the above aspect, when the door is kept open for the first time, the control is temporarily ended by switching the inside / outside air switching unit to the outside air introduction mode. As compared with the technique disclosed in Patent Document 1 in which the control is continued until it is performed, the power consumption of the vehicle can be suppressed.

  The vehicle air conditioner according to another aspect of the present invention is the air conditioner for a vehicle according to the aspect described above, wherein the air conditioning control unit is configured to accept information regarding an ON / OFF state of an ignition switch, and the air conditioning control unit switches to the intermediate mode. The command to the effect is issued when the condition that the ignition switch is in the OFF state is satisfied in addition to the condition that the door opening / closing detection unit detects the open state of the door.

  As in the vehicle air conditioner according to the above aspect, when the ignition switch is in the OFF state, the drive of the alternator is stopped, so that the inside / outside air switching unit is set to the outside air introduction mode after the first time has passed. Thus, the above-described method of once ending the control can reduce power consumption, and is effective from the viewpoint of preventing the battery from going up.

  The vehicle air conditioner according to another aspect of the present invention is the vehicle air conditioner according to the above aspect, wherein when the ignition switch is turned on after the air conditioning control unit issues a command to switch to the outside air introduction mode, the inside and outside A command is issued to the air switching unit so as to return to the mode immediately before the door opening / closing detection unit detects the open state of the door.

  In the vehicle air conditioner according to the above aspect, when the ignition switch is turned on after being switched to the outside air introduction mode as described above, the mode of the inside / outside air switching unit is changed to the original mode (the door is opened). The mode immediately before becomes), so it is difficult for the passengers to feel uncomfortable. That is, when the occupant (driver) turns on the ignition switch, the occupant feels uncomfortable when the mode of the inside / outside air switching unit is different from that before turning off the ignition switch.

  On the other hand, in the vehicle air conditioner according to the above aspect, when the ignition switch is turned on, the mode of the inside / outside air switching unit is returned to the original mode, so that the occupant does not feel uncomfortable.

  An air conditioner for a vehicle according to an aspect of the present invention includes an outside air introduction mode for introducing air from outside the vehicle cabin, an inside air circulation mode for circulating air inside the vehicle cabin, and the outside of the vehicle cabin of the vehicle. A first intermediate mode in which the vehicle interior is in communication, a second intermediate in which the outside of the vehicle and the vehicle interior are in communication with each other, and the cross-sectional area of the communication path is smaller than in the first intermediate mode. An inside / outside air switching unit capable of switching between modes, a door opening / closing detection unit for detecting an open / closed state of the door of the vehicle, and receiving information relating to the detection from the door opening / closing detection unit, and the inside / outside air switching unit An air conditioning control unit that issues a command of a mode to be executed with respect to the inside / outside air switching unit when the door opening / closing detection unit detects an open state of the door. After issuing a command to switch to the first intermediate mode and issuing a command to switch to the intermediate mode, the door open / closed detection unit detects the door open state at a preset first time. When the operation is continued, a command for switching to the second intermediate mode is issued to the inside / outside air switching unit.

  In the vehicle air conditioner according to the above aspect, when the door is opened, the inside / outside air switching unit is set to the first intermediate mode, and the outside of the passenger compartment and the passenger compartment are in communication with each other. Therefore, in the vehicle air conditioner according to the above aspect, when the door is closed before the first time elapses, the closed state of the door becomes insufficient due to the maintenance of the communication state (so-called half-door). State).

  Moreover, in the vehicle air conditioner according to the above aspect, when the door is open for the first time, the inside / outside air switching unit is set to the second intermediate mode. Also in this case, although the degree of communication is smaller than in the first intermediate mode, the outside of the passenger compartment and the passenger compartment are in communication. Therefore, also in this case, in the vehicle air conditioner according to the above aspect, it is possible to prevent the door from being closed insufficiently (so-called half-door state).

  Moreover, in the vehicle air conditioner according to the above aspect, when the door is open for the first time, the inside / outside air switching unit is set to the second intermediate mode. And in 2nd intermediate mode, since the cross-sectional area of a communication path is small compared with 1st intermediate mode, the penetration | invasion of the garbage and insect from the vehicle interior to a vehicle interior can be suppressed.

  Therefore, in the vehicle air conditioner according to the aspect described above, it is possible to prevent the door from being closed insufficiently when the door is closed, and to prevent dust and dirt from outside the vehicle compartment even when the door is open for a long time. Insects can be prevented from entering.

  Even in the vehicle air conditioner according to the above aspect, when the door is kept open for the first time, the inside / outside air switching unit is switched to the second intermediate mode and the control is temporarily ended. Compared with the technique disclosed in Patent Document 1 in which the control is continued until the vehicle is closed, the power consumption of the vehicle can be suppressed.

  In the vehicle air conditioner according to another aspect of the present invention, in the above aspect, the air conditioning control unit is configured to receive information related to an ON / OFF state of an ignition switch, and the air conditioning control unit includes the first intermediate mode. Is issued when the condition that the ignition switch is in the OFF state is satisfied in addition to the condition that the door opening / closing detection unit has detected the open state of the door.

  When the ignition switch is in the OFF state as in the vehicle air conditioner according to the above aspect, the alternator drive is stopped, so that the inside / outside air switching unit is set to the second intermediate mode after the first time has passed. Thus, the above-described method for once ending the control can reduce power consumption and is effective from the viewpoint of preventing the battery from going up.

  The vehicle air conditioner according to another aspect of the present invention is the vehicle air conditioner according to the above aspect, wherein the air conditioning control unit issues a command to switch to the second intermediate mode, and then the ignition switch is turned on. A command is issued to the inside / outside air switching unit to return to the mode immediately before the door opening / closing detection unit detects the open state of the door.

  Even in the vehicle air conditioner according to the above aspect, when the ignition switch is turned on after switching to the second intermediate mode as described above, the mode of the inside / outside air switching unit is changed to the original mode (the door is opened). The mode immediately before entering the state), so it is difficult for the passenger to feel uncomfortable. That is, when the occupant (driver) turns on the ignition switch, the occupant feels uncomfortable when the mode of the inside / outside air switching unit is different from that before turning off the ignition switch.

  On the other hand, in the vehicle air conditioner according to the above aspect, when the ignition switch is turned on, the mode of the inside / outside air switching unit is returned to the original mode, so that the occupant does not feel uncomfortable.

  The vehicle air conditioner according to another aspect of the present invention is the vehicle air conditioner according to the above aspect, wherein the air conditioning control unit detects that the door opening / closing detection unit is in the closed state after the door opening / closing detection unit detects the opening state of the door. When the second open time is detected, the inside / outside air switching unit is instructed to return to the mode immediately before the door open / close detection unit detects the door open state. To emit.

  In the vehicle air conditioner according to the above aspect, even if the door is closed, the mode of the inside / outside air switching unit is not immediately returned to the original mode (the mode immediately before the door is opened), but the second time Since it is decided to return after waiting for the progress, it is advantageous from the viewpoint that the quietness in the passenger compartment is not hindered and the frequent driving of the inside / outside air switching section when a plurality of passengers get on and off.

  A control method for a vehicle air conditioner according to an aspect of the present invention includes an outside air introduction mode for introducing air from outside the vehicle cabin, an inside air circulation mode for circulating air inside the vehicle cabin, and the vehicle Controls a vehicle air conditioner comprising: an inside / outside air switching unit capable of switching between an intermediate mode in which the outside of the vehicle interior and the vehicle interior are in communication with each other; and a door open / close detection unit that detects an open / closed state of the door of the vehicle An intermediate mode switching step for switching the inside / outside air switching unit to the intermediate mode when the ignition switch of the vehicle is in an OFF state and the door opening / closing detection unit detects the open state of the door; After the execution of the intermediate mode switching mode, the detection of the door open state by the door opening / closing detection unit is continued for a preset first time. In, and a air introduction mode switching step of switching the inside outside air switching unit to the outside air introduction mode.

  In the control method for a vehicle air conditioner according to the above aspect, when the door is opened, an intermediate mode switching step in which the inside / outside air switching unit is set to the intermediate mode is executed, whereby the vehicle interior and the vehicle interior are communicated with each other. It becomes. Therefore, in the control method for a vehicle air conditioner according to the above aspect, when the door is closed before the first time elapses, the door is not sufficiently closed by maintaining the communication state (so-called “so-called”). , A half-door state) can be suppressed.

  Further, in the control method for a vehicle air conditioner according to the above aspect, when the door is open for the first time, an outside air introduction mode switching step is performed in which the inside / outside air switching unit is set to the outside air introduction mode. Yes. Also in this case, the outside of the passenger compartment and the passenger compartment are in communication with each other via the outside air introduction path. Therefore, also in this case, in the control method of the vehicle air conditioner according to the above aspect, it is possible to suppress the door closing state from becoming insufficient (so-called half-door state).

  Further, in the control method for a vehicle air conditioner according to the above aspect, when the door is open for the first time, an outside air introduction mode switching step is performed in which the inside / outside air switching unit is set to the outside air introduction mode. Yes. In a vehicle, a filter is usually provided in the outside air introduction path. Therefore, in the control method for a vehicle air conditioner according to the above aspect, compared to the technique disclosed in Patent Document 1 in which the door is maintained in the intermediate mode when the door is in an open state, the vehicle air conditioner is controlled from outside the cabin through the inside / outside air switching unit. Invasion of garbage and insects into the passenger compartment can be suppressed.

  Therefore, in the control method for a vehicle air conditioner according to the above aspect, it is possible to prevent the door from being closed insufficiently when the door is closed, and the vehicle outside the passenger compartment even if the door is opened for a long time. Can prevent the entry of garbage and insects.

  In the vehicle air conditioner according to the above aspect, when the door is kept open for the first time, the control is temporarily ended by switching the inside / outside air switching unit to the outside air introduction mode. As compared with the technique disclosed in Patent Document 1 in which the control is continued until it is performed, the power consumption of the vehicle can be suppressed. In particular, as in the control method for a vehicle air conditioner according to the above aspect, when the ignition switch is in the OFF state, the drive of the alternator is stopped, so it is effective from the viewpoint of preventing the battery from going up. It is.

  A control method for a vehicle air conditioner according to an aspect of the present invention includes an outside air introduction mode for introducing air from outside the vehicle cabin, an inside air circulation mode for circulating air inside the vehicle cabin, and the vehicle A first intermediate mode in which the outside of the vehicle interior and the vehicle interior are in communication with each other, a communication state between the outside of the vehicle interior of the vehicle and the vehicle interior is in communication, and a cross-sectional area of the communication path is smaller than that in the first intermediate mode. A vehicle air conditioner including an inside / outside air switching unit capable of switching between a second intermediate mode and a door opening / closing detection unit for detecting an opening / closing state of the door of the vehicle is controlled, and the ignition switch of the vehicle is OFF And a first intermediate mode switching step for switching the inside / outside air switching unit to the first intermediate mode when the door open / close detection unit detects the open state of the door. And after the execution of the intermediate mode switching mode, when the detection state of the door open state by the door opening / closing detection unit is continued for a preset first time, the inside / outside air switching unit is moved to the second mode. A second intermediate mode switching step for switching to the intermediate mode.

  In the vehicle air conditioner control method according to the above aspect, when the door is opened, a first intermediate mode switching step is performed in which the inside / outside air switching unit is set to the first intermediate mode, so that the outside of the passenger compartment and the passenger compartment are communicated. It becomes a state. Therefore, in the control method for a vehicle air conditioner according to the above aspect, when the door is closed before the first time elapses, the door is not sufficiently closed by maintaining the communication state (so-called “so-called”). , A half-door state) can be suppressed.

  Moreover, in the control method for a vehicle air conditioner according to the above aspect, when the door is open for the first time, a second intermediate mode switching step is performed in which the inside / outside air switching unit is set to the second intermediate mode. . Also in this case, although the degree of communication is smaller than in the first intermediate mode, the outside of the passenger compartment and the passenger compartment are in communication. Therefore, also in this case, in the control method of the vehicle air conditioner according to the above aspect, it is possible to suppress the door closing state from becoming insufficient (so-called half-door state).

  Moreover, in the vehicle air conditioner according to the above aspect, when the door is open for the first time, the inside / outside air switching unit performs the second intermediate mode switching step. And in 2nd intermediate mode, since the cross-sectional area of a communication path is small compared with 1st intermediate mode, the penetration | invasion of the garbage and insect from the vehicle interior to a vehicle interior can be suppressed.

  Therefore, in the control method for a vehicle air conditioner according to the above aspect, it is possible to prevent the door from being closed insufficiently when the door is closed, and the vehicle outside the passenger compartment even if the door is opened for a long time. Can prevent the entry of garbage and insects.

  In the vehicle air conditioner according to the above aspect, when the door is kept open for the first time, the inside / outside air switching unit is switched to the second intermediate mode and the control is temporarily ended. Compared with the technique disclosed in Patent Document 1 in which the control is continued until the vehicle is closed, the power consumption of the vehicle can be suppressed. In particular, as in the control method for a vehicle air conditioner according to the above aspect, when the ignition switch is in the OFF state, the drive of the alternator is stopped, so it is effective from the viewpoint of preventing the battery from going up. It is.

  In each of the above aspects, it is possible to prevent the door from being closed insufficiently when the door is closed, and to prevent entry of dust and insects from outside the vehicle compartment even when the door is open for a long time. be able to.

It is the model side view which looked at the vehicle which concerns on embodiment from the left side. It is a model side view which shows the A section of FIG. (A) is a schematic side view showing the state of the inside / outside air switching damper in the outside air introduction mode, (b) is a schematic side view showing the state of the inside / outside air switching damper in the inside air circulation mode, (c ) Is a schematic side view showing a state of the inside / outside air switching damper in the intermediate mode. It is a schematic plan view which shows the vehicle with the door of a driver's seat side in an open state. It is a schematic diagram which shows the structure of the air-conditioning control switch provided in the vehicle interior part. It is a block diagram which shows the control structure which concerns on a vehicle air conditioner. It is a flowchart which shows the air-conditioning control method which a control unit performs. It is a time chart which shows an example of the air-conditioning control method. (A) is a schematic side view which shows the state of the inside / outside air switching damper in the second intermediate mode according to Modification 1, and (b) is the inside / outside air switching damper in the second intermediate mode according to Modification 2. It is a model side view which shows the state.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The form described below is one embodiment of the present invention, and the present invention is not limited to the following form except for the essential configuration.

  In the drawings used in the following description, “front”, “rear”, “upper”, “lower”, “right”, and “left” are directions based on the occupant who has boarded the vehicle.

1. Configuration of Vehicle 1 The configuration of the vehicle 1 according to the present embodiment will be described with reference to FIG.

  As shown in FIG. 1, a vehicle 1 includes a vehicle front portion 1a on which a driving power source such as an engine is mounted, a vehicle compartment portion 1b on which an occupant rides, and a vehicle rear portion 1c at the rear of the vehicle compartment portion 1b. It consists of and. The vehicle compartment 1b of the vehicle 1 is provided with doors 2 (front door 2a, rear door 2b, rear gate 2c) for passengers to get on and off.

  In FIG. 1, only the left side surface of the vehicle 1 is illustrated, but the front door 2a and the rear door 2b are also provided on the right side surface on the opposite side.

  Each of the front door 2a and the rear door 2b is provided with a window 3 (a front window 3a and a rear window 3b) that is opened and closed by the operation of an occupant.

2. Inside / outside air switching damper 4
The configuration of the inside / outside air switching damper 4 provided in the vehicle 1 will be described with reference to FIGS. 2 and 3. FIG. 2 is a schematic side view showing the configuration of the inside / outside air switching damper 4 mounted in the A part of FIG. 1, and FIG. 3A is an inside / outside air switching damper when the outside air introduction mode is selected. 4B is a schematic side view showing the state of the inside / outside air switching damper 4 when the inside air circulation mode is selected, and FIG. 4C is a diagram showing the state when the intermediate mode is selected. It is a model side view which shows the state of the inside / outside air switching damper 4 in the case of being.

  As shown in FIG. 2, the inside / outside air switching damper 4 includes an outside air introduction port 4a for taking in air from the outside (front) of the vehicle 1, and an inside air introduction port 4b for taking in air from the inside of the vehicle compartment 1b. And comprising.

  The inside / outside air switching damper 4 includes a valve body 40 at a joining portion of a path continuing from the outside air introduction port 4a and a path continuing from the inside air introduction port 4b. As shown in FIGS. 3A to 3C, the valve body 40 includes a plate-like body 40a and a support arm 40b provided below the plate-like body 40a. The plate-like body 40a and the support arm 40b can be rotated together around a support shaft 40c that supports the lower portion of the support arm 40b.

  Returning to FIG. 2, a filter 5 and a blower fan 6 are attached below the inside / outside air switching damper 4. During the operation of the blower fan 6, the outside air Flow 1 or the inside air Flow 2 is introduced into the inside / outside air switching damper 4 according to the state of the valve body 40. The introduced outside air Flow1 or inside air Flow2 is jetted into the vehicle compartment 1b via the filter 5, an evaporator (not shown), or the like (Flow3).

  As shown in FIG. 3A, when the outside air introduction mode is selected, the plate-like body 40a of the valve body 40 is in a posture to close the inside air introduction port 4b. Thereby, when the outside air introduction mode is selected, only the outside air Flow1 is introduced into the inside / outside air switching damper 4 from the outside air introduction port 4a.

  Next, as shown in FIG. 3B, when the inside air circulation mode is selected, the plate-like body 40a of the valve body 40 is in a posture to block the outside air introduction port 4a. Thereby, when the inside air circulation mode is selected, only the inside air Flow2 is introduced into the inside / outside air switching damper 4 from the inside air introduction port 4b.

  Next, as shown in FIG. 3 (c), when the inside / outside air switching damper 4 is in the intermediate mode, the plate-like body 40a of the valve body 40 is in the outside air introduction mode and in the inside air circulation mode. The posture is an intermediate position from the posture. Thereby, the outside air introduction port 4a and the inside air introduction port 4b are in a communication state. Therefore, an air circulation path is formed between the space of the vehicle compartment portion 1b and the outside of the vehicle compartment.

  When the inside / outside air switching damper 4 is in the outside air introduction mode (when it is in the state of FIG. 3 (a)) and when it is in the inside air circulation mode (when it is in the state of FIG. 3 (b)), The air taken into the air switching damper 4 passes through the filter 5 and is returned to the vehicle interior 1b. Thereby, it is suppressed that garbage and insects are released into the passenger compartment 1b.

  Of the three modes that the inside / outside air switching damper 4 can take, switching between the outside air introduction mode and the inside air circulation mode is performed by an occupant's operation on the air conditioning control switch 8 provided in the passenger compartment 1b. This will be described later.

3. Opening and closing of the door in the vehicle 1 Opening and closing of the door 2 in the vehicle 1 will be described with reference to FIG. FIG. 4 is a schematic plan view showing the state of the vehicle 1 with the driver seat side door 2ar open.

  As shown in FIG. 4, in the vehicle 1, the doors 2ar, 2al, 2br, 2bl are opened and closed when the passenger gets on and off. Further, the rear gate 2c is opened / closed when loading / unloading the vehicle 1 with respect to / from the vehicle.

  Here, when a plurality of occupants get on and off the vehicle 1 or when the occupant takes in and out the luggage placed on the rear part of the passenger compartment 1b, the doors 2ar, 2al, 2br, 2bl and the rear gate 2c are Opening and closing is performed with a time shift.

  In the vehicle 1 according to the present embodiment, a door opening / closing sensor is provided at each support portion of the doors 2ar, 2al, 2br, 2bl and the rear gate 2c.

4). Configuration of Air Conditioning Control Switch 8 The configuration of the air conditioning control switch 8 provided on the dashboard in the passenger compartment 1b will be described with reference to FIG. FIG. 5 is a schematic diagram showing the configuration of the air conditioning control switch 8.

  As shown in FIG. 5, the air conditioning control switch 8 includes an A / C (air conditioner) switch 80, air volume switches 81 and 82, an outside air introduction switch 83, an inside air circulation switch 84, a set temperature switching dial 85, 86 and an air conditioning information display 87.

  The A / C switch 80 is a switch for selecting whether or not the occupant drives the A / C. When the switch is pressed once, the A / C is turned ON, and when the switch is pressed again, the A / C is turned OFF. It becomes a state.

  In the state where the A / C switch 80 is in the ON state, the auto mode is set as the initial state.

  The air volume switches 81 and 82 are switches for the passenger to adjust the air volume, and when the air volume switch 81 is pressed, the air volume increases in order according to the number of times. On the other hand, when the air volume switch 82 is pressed, the air volume decreases in accordance with the number of times.

  Note that when the occupant operates the air volume switches 81 and 82 after turning on the A / C switch 80, the auto mode is canceled.

  The outside air introduction switch 83 is a switch for selecting the outside air introduction mode when the occupant presses the switch. The inside air introduction switch 84 is a switch for selecting the inside air circulation mode when the occupant presses the switch. The outside air introduction switch 83 and the inside air introduction switch 84 are switches that allow the occupant to select one of them, and are switches that can selectively switch modes.

  Note that when the occupant operates the outside air introduction switch 83 or the inside air introduction switch 84 after turning on the A / C switch 80, the auto mode is canceled.

  The set temperature switching dial 85 is a dial for setting the temperature on the right side (in the case of a right-hand drive vehicle, the driver's seat side and in the case of a left-hand drive vehicle) in the passenger compartment 1b. The set temperature switching dial 85 is provided with a set temperature display portion 85a so that the current set temperature is displayed.

  Similarly, the set temperature switching dial 86 is a dial for setting the temperature on the left side (in the case of a right-hand drive vehicle, on the passenger seat side and in the case of a left-hand drive vehicle) in the passenger compartment 1b. . The set temperature switching dial 86 is also provided with a set temperature display portion 86a so that the current set temperature is displayed.

  The air conditioning information display 87 is disposed between the set temperature switching dial 85 and the set temperature switching dial 86, and whether the A / C is in the ON state, whether it is in the auto mode, and each detected temperature. And the air volume of the fan is displayed.

5. Control Configuration of Vehicle Air Conditioner 100 A control configuration of the vehicle air conditioner 100 will be described with reference to FIG. FIG. 6 is a block diagram showing a control configuration related to the vehicle air conditioner 100.

  As shown in FIG. 6, the vehicle air conditioner 100 according to the present embodiment includes a control unit 9, an air conditioning control switch 8, a door opening / closing sensor 11, and an inside / outside air switching damper 4 including a damper switching actuator 41. Prepare.

  The control unit 9 has a microprocessor composed of a CPU, ROM, RAM and the like. As shown in FIG. 6, the control unit 9 includes a first timer 9a, a second timer 9b, and a memory 9c.

  The first timer 9a is a timer in which the time from the start of timing to the time-up is preset at time Ta. The second timer 9b is a timer in which the time from the start of time measurement to the time up is preset at time Tb.

  Here, in the vehicle air conditioner 100 according to the present embodiment, the time Ta is 40 to 50 sec. (For example, 45 sec.) Is set, and the time Tb is 30 to 40 sec. (For example, 35 sec.) Is set.

  The time Ta and the time Tb are values defined experimentally and empirically.

  Returning to FIG. 6, information from the air conditioning control switch 8, ON / OFF information from the IG switch 10, information on opening / closing of the door 2 from the door opening / closing sensor 11, etc. are input to the control unit 9. It is like that.

  As described above, the door opening / closing sensor 11 is provided on each support portion of the doors 2ar, 2al, 2br, 2bl and the rear gate 2c.

  The control unit 9 executes drive control of the damper switching actuator 41 as necessary based on the various information input as described above.

  Although not shown in FIGS. 2 and 3, the damper switching actuator 41 is provided for driving the valve body 40. Then, based on a command from the control unit 9 to the damper switching actuator 41, the inside / outside air switching damper 4 is selectively switched between the outside air introduction mode, the inside air circulation mode, and the intermediate mode.

6). Air-conditioning control method The air-conditioning control method which the control unit 9 performs is demonstrated using FIG. 7 and FIG. FIG. 7 is a flowchart showing an air conditioning control method executed by the control unit 9, and FIG. 8 is a time chart showing an example of the air conditioning control method.

  As shown in FIG. 7, in the air conditioning control, the control unit 9 first determines whether or not the IG (ignition) switch 10 is OFF (step S1). The control unit 9 waits until the IG switch 10 is turned off (step S1: No).

  If the control unit 9 determines that the IG switch has been turned off (step S1: Yes), it next determines whether or not the door 2 is in an open state (step S2). Here, in the present embodiment, the door 2 to be determined in step S2 is any one of the doors 2ar, 2al, 2br, and 2bl. The control unit 9 waits until one of the doors 2 is opened (step S2: No), and continuously executes the determination in step S1 and the determination in step S2.

  On the other hand, when the control unit 9 determines that one door 2 has been opened (step S2: Yes), the control unit 9 issues a command to the damper switching actuator 41 to switch the inside / outside air switching damper 4 to the intermediate mode ( Step S3). At the same time, the time measurement by the first timer 9a is started (step S4).

  In FIG. 7, the magazine is omitted, but if the control unit 9 determines that one door 2 is open in step S <b> 2 (step S <b> 2: Yes), the inside / outside air at the time point Information on the mode of the switching damper 4 (the outside air introduction mode or the inside air circulation mode) is stored in the memory 9c.

  Next, the control unit 9 determines whether or not the door 2 has been closed (step S5). The control unit 9 continues closing the door 2 until the count time T1 in the first timer 9a reaches the time Ta (step S6: Yes).

  When the control unit 9 detects that the door 2 is closed (step S5: Yes) before the count time T1 in the first timer 9a reaches the time Ta (step S6: Yes), the first timer 9a Is reset (step S7). Then, the control unit 9 starts measuring time in the second timer 9b together with the resetting of the first timer 9a (step S8).

  The control unit 9 waits until the count time T2 in the second timer 9b reaches the time Tb (step S9: Yes), and when the count time T2 reaches the time Tb (step S9: No), the inside / outside air is switched. A command is issued to the damper switching actuator 41 to switch the damper 4 to the initial state (original state) (step S10). The control unit 9 resets the 2nd timer 9b with execution of step S10 (step S11), and complete | finishes air-conditioning control.

  Note that the “initial state (original state)” in the above is a mode setting state in a state before detecting that the door 2 is opened (a state before Step S2 becomes Yes). This is a mode input by the occupant to the air conditioning control switch 8. The control unit 9 reads out information on the mode of the inside / outside air switching damper 4 (outside air introduction mode or inside air circulation mode) stored in the memory 9c as described above, and sets it as the initial state (original state) in step S10.

  If the control unit 9 determines in step S6 that the count time T1 has reached the time Ta before the door 2 is closed (step S6: No), the control unit 9 resets the first timer 9a (step S12). ) A command is issued to the damper switching actuator 41 to switch the inside / outside air switching damper 4 to the outside air introduction mode (step S13). Then, the control unit 9 ends the air conditioning control.

  As described above, the air conditioning control executed by the control unit 9 ends.

  Here, when the air conditioning control by the control unit 9 is completed in the state where the inside / outside air switching damper 4 is set to the outside air introduction mode by the execution of the step S13, the IG switch 10 is thereafter turned on. Or until the door 2 is closed, the control by the control unit 9 is not executed, and power for control is not consumed.

  When the door 2 is closed after the inside / outside air switching damper 4 is set to the outside air introduction mode by the execution of step S13, the execution of steps S5 to S11 in the flowchart of FIG. 7 is performed. The mode of the inside / outside air switching damper 4 is switched to the initial state.

  Further, when the IG switch 10 is turned on after the inside / outside air switching damper 4 is set to the outside air introduction mode by the execution of step S13, the mode of the inside / outside air switching damper 4 is immediately returned to the initial state. Can be switched.

  Next, an example of the air conditioning control described with reference to the flowchart of FIG. 7 will be described with reference to FIG. The following example using FIG. 8 is an example in which steps S1 to S6, and steps S12 and S13 are executed.

  As shown in FIG. 8, in this example, the IG switch 10 is maintained in the OFF state from timing t1 to timing t3. At timing t1, any one of the doors 2 is opened. The control unit 9 that has detected the open state switches the inside / outside air switching damper 4 to the intermediate mode. The control unit 9 starts timing by the first timer 9a at the timing t1 (first timer ON).

  In the example shown in FIG. 8, the inside / outside air switching damper 4 is set to the inside air circulation mode at a time point before the timing t1.

  Next, when the state in which the inside / outside air switching damper 4 is set to the intermediate mode is maintained and the door 2 is not closed even when the timing t2 is reached, the inside / outside air switching damper 4 is switched to the outside air introduction mode. Then, the timing by the first timer 9a is terminated at the timing t2 (first timer OFF).

  Here, the period from the timing t1 to the timing t2 is a time Ta set in advance for the first timer 9a.

  And the control unit 9 complete | finishes air-conditioning control at the timing t2. Thereafter, when the IG switch 10 is turned on at timing t3, the inside / outside air switching damper 4 is switched to the inside air circulation mode. The inside-air circulation mode that is switched at timing t3 is a mode that was selected at a time before timing t1.

[Modification 1]
The air conditioning control according to Modification 1 will be described with reference to FIG.

  In the above embodiment, the inside / outside air switching damper 4 is switched to the outside air introduction mode in step S13 in the flowchart of FIG. 7, but in this modified example, instead of the outside air introduction mode in step S13, FIG. To the second intermediate mode shown in FIG.

  As shown in FIG. 9A, in the second intermediate mode according to this modification, the plate-like body 40a of the valve body 40 is oblique with an angle θ1 (an angle less than 90 °) with respect to the vertical axis Ax0. It is tilted in the direction. That is, in the second intermediate mode shown in FIG. 9A, the communication path that connects the outside air introduction port 4a and the inside air introduction port 4b as compared with the intermediate mode (first intermediate mode) described with reference to FIG. In this mode, the cross-sectional area of 4c is small.

  This modification is characterized in that the inside / outside air switching damper 4 is switched to the second intermediate mode instead of step S13 in the flowchart shown in FIG.

  In the present modification, the communication path between the outside of the vehicle compartment and the inside of the vehicle compartment portion 1b is not blocked by the execution of step S14 as in the above embodiment, but by reducing the cross-sectional area of the communication path 4c, It is possible to suppress the invasion of dust and insects from the outside into the vehicle interior 1b.

[Modification 2]
The air conditioning control according to Modification 2 will be described with reference to FIG.

  Also in this modified example, in step S13 in the flowchart of FIG. 7, the inside / outside air switching damper 4 is switched to the second intermediate mode shown in FIG. 9B instead of switching to the outside air introduction mode.

  As shown in FIG. 9B, in the second intermediate mode according to the present modification, the plate-like body 40a of the valve body 40 is inclined to the opposite side to the modification 1, and the vertical axis Ax0. With respect to the angle θ2 (an angle greater than 90 °), it is inclined obliquely. That is, also in the second intermediate mode shown in FIG. 9B, the communication path that connects the outside air introduction port 4a and the inside air introduction port 4b as compared with the intermediate mode (first intermediate mode) described with reference to FIG. In this mode, the cross-sectional area of 4c is small.

  In the present modified example, similarly to the modified example 1, in step S13 of the flowchart shown in FIG. 7, the cross-sectional area of the communication path 4c is reduced by switching to the second intermediate mode. Invasion of dust and insects into 1b can be suppressed.

[Other variations]
In the above embodiment and Modifications 1 and 2, as described with reference to FIG. 3C, the state in which the plate-like body 40a takes a substantially horizontal posture is taken as an example as the intermediate mode. You are not limited to this. The posture of the plate-like body 40a may be controlled so that the outside air introduction port 4a and the inside air introduction port 4b communicate with each other.

  Moreover, in the said embodiment and the modifications 1 and 2, although the inside / outside air switching damper 4 employ | adopted the structure by which mode switching is made by rotation of the plate-shaped body 40a, this invention receives a limitation to this. is not. A so-called rotary damper structure can also be employed.

  In the embodiment and the first and second modifications, the control unit 9 includes the two timers 9a and 9b. However, the present invention is not limited to this. For example, the control unit may be provided with only one timer, and a plurality of times in the flowchart of FIG. 7 may be executed by counting the one timer.

  Further, in the above embodiment and the first and second modifications, it is determined whether or not the IG switch is in the ON state or the OFF state in Step S1 of the flowchart of FIG. Although the subsequent steps are executed, the present invention is not limited to this. Even if the IG switch is not necessarily in the OFF state, the same effect as described above can be obtained by executing each step after step S2.

1 Vehicle 2 Door 4 Inside / outside air switching damper (inside / outside air switching section)
4a Outside air inlet 4b Inside air inlet 4c Communication path 8 Air conditioning control switch 9 Control unit (air conditioning controller)
9a 1st timer 9b 2nd timer 10 IG (ignition) switch 11 Door opening / closing sensor (door opening / closing detection part)
41 Damper switching actuator 100 Vehicle air conditioner

Claims (9)

An air conditioner for a vehicle,
An outside air introduction mode for introducing air from outside the vehicle compartment of the vehicle, an inside air circulation mode for circulating air inside the vehicle compartment of the vehicle, and an intermediate mode in which the outside of the vehicle compartment of the vehicle communicates with the vehicle compartment; An inside / outside air switching section capable of switching between,
A door opening / closing detection unit for detecting an opening / closing state of the door of the vehicle;
An air conditioning control unit that receives information related to the detection from the door opening / closing detection unit and issues a command for a mode to be executed to the inside / outside air switching unit;
With
The air conditioning controller
When the door opening / closing detection unit detects the open state of the door, the inside / outside air switching unit issues a command to switch to the intermediate mode,
After issuing a command to switch to the intermediate mode, when the detection state of the door open state by the door opening / closing detection unit is continued for a preset first time, to the inside / outside air switching unit Issue a command to switch to the outside air introduction mode,
Vehicle air conditioner. The vehicle air conditioner according to claim 1,
The air conditioning control unit is configured to receive information related to the ON / OFF state of the ignition switch,
The air conditioning control unit issues a command to switch to the intermediate mode, in addition to the condition that the door open / close detection unit detects the open state of the door, and the condition that the ignition switch is OFF If you meet
Vehicle air conditioner. In the vehicle air conditioner according to claim 2,
After the air conditioning control unit issues a command to switch to the outside air introduction mode, the door open / close detection unit opens the door with respect to the inside / outside air switching unit when the ignition switch is turned on. Issue a command to return to the mode just prior to detecting the condition,
Vehicle air conditioner. An air conditioner for a vehicle,
An outside air introduction mode for introducing air from outside the vehicle compartment of the vehicle, an inside air circulation mode for circulating air inside the vehicle compartment of the vehicle, and a first intermediate mode in which the outside of the vehicle compartment and the vehicle compartment are in communication with each other And an inside / outside air switching unit capable of switching between the outside of the passenger compartment of the vehicle and the passenger compartment, and a second intermediate mode having a smaller cross-sectional area of the communication path than the first intermediate mode,
A door opening / closing detection unit for detecting an opening / closing state of the door of the vehicle;
An air conditioning control unit that receives information related to the detection from the door opening / closing detection unit and issues a command for a mode to be executed to the inside / outside air switching unit;
With
The air conditioning controller
When the door opening / closing detection unit detects the open state of the door, the inside / outside air switching unit issues a command to switch to the first intermediate mode,
After issuing a command to switch to the intermediate mode, when the detection state of the door open state by the door opening / closing detection unit is continued for a preset first time, to the inside / outside air switching unit Issue a command to switch to the second intermediate mode,
Vehicle air conditioner. The vehicle air conditioner according to claim 4,
The air conditioning control unit is configured to receive information related to the ON / OFF state of the ignition switch,
The air conditioning control unit issues a command to switch to the first intermediate mode when the ignition switch is in an OFF state in addition to the condition that the door open / close detection unit detects the door open state. If the condition of
Vehicle air conditioner. In the vehicle air conditioner according to claim 5,
After the air conditioning control unit issues a command to switch to the second intermediate mode, when the ignition switch is turned on, the door open / close detection unit is connected to the inside / outside air switching unit. Send a command to return to the mode just before detecting the open state,
Vehicle air conditioner. The vehicle air conditioner according to any one of claims 1 to 6,
The air conditioning control unit waits for the elapse of a preset second time when the door open / close detection unit detects the door closed state after the door open / close detection unit detects the door open state. A command to return to the mode immediately before the door opening / closing detection unit detects the open state of the door, to the inside / outside air switching unit,
Vehicle air conditioner. A control method for an air conditioner for a vehicle,
The air conditioner
An outside air introduction mode for introducing air from outside the vehicle compartment of the vehicle, an inside air circulation mode for circulating air inside the vehicle compartment of the vehicle, and an intermediate mode in which the outside of the vehicle compartment of the vehicle communicates with the vehicle compartment; An inside / outside air switching section capable of switching between,
A door opening / closing detection unit for detecting an opening / closing state of the door of the vehicle;
With
An intermediate mode switching step of switching the inside / outside air switching unit to the intermediate mode when the ignition switch of the vehicle is in an OFF state and the door opening / closing detection unit detects an open state of the door;
After the execution of the intermediate mode switching mode, when the detection state of the door open state by the door opening / closing detection unit is continued for a preset first time, the inside / outside air switching unit is set to the outside air introduction mode. An outside air introduction mode switching step to be switched;
Comprising
Control method for vehicle air conditioner. A control method for an air conditioner for a vehicle,
The air conditioner
An outside air introduction mode for introducing air from outside the vehicle compartment of the vehicle, an inside air circulation mode for circulating air inside the vehicle compartment of the vehicle, and a first intermediate mode in which the outside of the vehicle compartment and the vehicle compartment are in communication with each other And an inside / outside air switching unit capable of switching between the outside of the passenger compartment of the vehicle and the passenger compartment, and a second intermediate mode having a smaller cross-sectional area of the communication path than the first intermediate mode,
A door opening / closing detection unit for detecting an opening / closing state of the door of the vehicle;
With
A first intermediate mode switching step of switching the inside / outside air switching unit to the first intermediate mode when the ignition switch of the vehicle is in an OFF state and the door opening / closing detection unit detects an open state of the door. When,
After the execution of the intermediate mode switching mode, when the detection state of the door open state by the door opening / closing detection unit is continued for a preset first time, the inside / outside air switching unit is moved to the second intermediate mode. A second intermediate mode switching step for switching to
Comprising
Control method for vehicle air conditioner.

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