JP2019188891A - Air-conditioning control device for vehicle - Google Patents

Abstract

To reduce the annoyance felt by a crewman for operation sound of a blower in an air conditioner for seat.SOLUTION: An air conditioner for passenger compartment which generates and feeds air-conditioning wind into the passenger compartment, and an air conditioner for seat which has a blower and circulates in-cabin air into a seat are controlled by a controller. For example, on the basis of a difference between an indoor temperature and a target temperature, air volumes of each air conditioner and the air conditioner for seat are set. When such condition that both of the air volume at the air conditioner for passenger compartment and the air volume at the air conditioner for seat are increased is established, the controller firstly performs increase of the air volume at the air conditioner for passenger compartment (t1 time point), and thereafter, performs delay control (T is a delay time) for increasing the air volume at the air conditioner for seat at a later time (t2 time point).SELECTED DRAWING: Figure 4

Description

  The present invention relates to a vehicle air conditioning control device.

  As an air conditioner mounted on a vehicle, an air conditioner for vehicle compartment that generates conditioned air and blows it into the passenger compartment is common. In the automatic mode, the passenger compartment air conditioner automatically controls the temperature of the conditioned air, the amount of air, and the outlet of the conditioned air based on the target temperature set by the passenger.

  On the other hand, recently, as shown in Patent Document 1 and Patent Document 2, it has been increasing that a seat air conditioner that circulates air in the passenger compartment is provided in the seat. Japanese Patent Application Laid-Open No. H10-228707 discloses a vehicle in which air in the passenger compartment is circulated in the seat using a blower provided in the seat.

JP 2012-158226 A JP 2016-16727 A

  By the way, in the seat air conditioner, when the blower is provided in the seat, the blower is present near the occupant seated on the seat, so the operation sound of the blower is given to the occupant compared to the passenger compartment air conditioner. The influence is great and the passengers are likely to feel annoying. In particular, when the operating sound of the blower is increased due to an increase in the air volume in the seat air conditioner, the passenger is likely to feel annoyance.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a vehicle air conditioning control device that can reduce the annoyance felt by the occupant with respect to the operation sound of the blower in the seat air conditioning device. There is to do.

In order to achieve the above object, the following solution is adopted in the present invention. That is, as described in claim 1,
An air conditioner for vehicle compartment that generates conditioned air and supplies it to the vehicle interior;
An air conditioner for the seat that has a blower disposed in the seat and circulates the air in the passenger compartment in the seat;
Control means for controlling the vehicle compartment air conditioner and the seat air conditioner;
With
When the control means is in a condition to increase both the air volume in the passenger compartment air conditioner and the air volume in the seat air conditioner, the controller first increases the air volume in the passenger compartment air conditioner first. , Delay control to increase the air volume in the seat air conditioner with a delay,
It is like that.

  According to the above-described solution technique, first, an increase in the air volume in the passenger compartment air conditioner is performed, so that the passenger predicts in advance an increase in the air volume in the seat air conditioner. Thereby, even if the air volume of the seat air conditioner is increased, the annoyance (or discomfort) felt by the occupant is reduced. Further, since the air volume of the air conditioner for the seat is increased in advance due to the increase of the air volume of the air conditioner for the passenger compartment, the air volume of the air conditioner for the seat is increased thereafter. It is difficult to feel the accompanying increase in operating sound (or to feel uncomfortable).

A preferred mode based on the above solution is as described in claim 2 and the following. That is,
When the control means is in a condition that only increases the air volume in the seat air conditioner, the air volume in the seat air conditioner is satisfied until a condition for increasing the air volume in the passenger compartment air conditioner is satisfied. The suppression control for suppressing the increase is performed (corresponding to claim 2). In this case, the increase in the air volume in the seat air conditioner is performed until the situation in which the air volume in the passenger compartment air conditioner is increased. Can reduce the annoyance (or discomfort) felt.

  The delay control and the suppression control by the control means are executed on the condition that the influence of the operating sound of the seat air conditioner on the occupant is large (corresponding to claim 3). . In this case, it is preferable to increase the air flow rate increase in the seat air conditioner as much as possible to enhance the air conditioning effectiveness.

  The predetermined state is set such that the degree of increase in air volume in the passenger compartment air conditioner and the degree of increase in air volume in the seat air conditioner are each equal to or less than a predetermined degree set in advance. Yes (corresponding to claim 4). In this case, when the degree of increase in the air volume is large, even if the operating noise increases, it is easy for the occupant to understand that the situation is unavoidable in order to ensure proper air conditioning. Is a preferable setting for the predetermined state.

  The predetermined state is set to be equal to or lower than a predetermined vehicle speed (corresponding to claim 5). In this case, when the vehicle speed is equal to or lower than the predetermined vehicle speed, since the traveling sound is small, the operating sound is likely to be anxious, so the predetermined state is preferably set.

  ADVANTAGE OF THE INVENTION According to this invention, the troublesomeness which a passenger | crew feels about the operation sound of the blower in a seat air conditioner can be reduced.

The figure which shows an example of an air-conditioning operation panel. The principal part disassembled perspective view of the sheet | seat which shows an example of the air conditioner for sheets. The figure which shows the example of a setting of the airflow level in a vehicle air conditioner, and the airflow level in a seat air conditioner. The time chart which shows the example of control of this invention. The figure which shows the example of a control system of this invention. The flowchart which shows the example of control of this invention.

  In FIG. 1, P is an air conditioning operation panel. The air conditioning operation panel P is provided, for example, at a substantially intermediate portion in the vehicle width direction of the instrument panel, and can be operated by a driver seat passenger and a passenger seat passenger.

  The air conditioning operation panel P is provided with various switches and display units, which will be described below. First, reference numeral 1 denotes a main switch. By operating a push-push type switch unit 1a at the center of the main switch, a passenger compartment air conditioner S11 (see FIG. 5) and a seat air conditioner 20 (see FIG. 2). Switch between on and off. In the state immediately after the main switch 1 is turned on, the passenger compartment air conditioner S11 and the seat air conditioner 20 are basically operated in the automatic mode. In FIG. 5, in order to distinguish the seat air conditioner 20 for the driver's seat and the passenger's seat, the seat air-conditioner 20 is identified using the symbols S12 and S13.

  The switch 1 is also used for air volume setting, and the air volume is manually set by rotating the rotary operation unit 1b set around the switch 1.

  In the air conditioner S11 for the passenger compartment, the air conditioning control can be individually performed for the driver seat and the passenger seat in the embodiment. That is, the switch 2 is for setting a target temperature for the driver's seat, and the set target temperature is displayed on the display unit 3. The switch 4 is for setting a target temperature for the passenger seat, and the set target temperature is displayed on the display unit 5.

  In the automatic mode, the vehicle interior air conditioner S11 adjusts the temperature and air volume of the conditioned air according to the difference between the actual temperature in the vehicle interior and the set target temperature, and adjusts the conditioned air flow. However, the air is blown out from the predetermined air outlet into the vehicle interior. When the air volume is manually set by the switch unit 1b, the control items other than the air volume are controlled in the automatic mode.

  The switch 6 is, for example, a push-push type, and is for turning on and off a seat air conditioner 20 (corresponding to reference sign S12 in FIG. 5) equipped for a driver's seat. When the switch 6 is turned on, the seat air conditioner 20 is forcibly operated even in the automatic mode. When the switch 6 is turned off, the operation of the seat air conditioner 20 is forcibly stopped even in the automatic mode. By rotating the switch 7, the air volume of the seat air conditioner 20 is manually set in preference to the air volume set in the automatic mode.

  The switch 8 is for turning on and off the seat air conditioner 20 (corresponding to S13 in FIG. 5) equipped for the passenger seat, and the switch 9 is for manually setting the air volume in the seat air conditioner 20. Since the switch 8 corresponds to the switch 6 and the switch 9 corresponds to the switch 7, the duplicate description thereof is omitted.

  The air conditioning operation panel P is further provided with a switch for switching between outside air intake and inside air circulation, a switch for operating the defroster, a switch for changing the outlet of the conditioned air, and the like. It is omitted because it is not directly related to.

  FIG. 2 shows an example of the seat air conditioner 20, which has substantially the same structure for the driver seat and the passenger seat. First, reference numeral 10 denotes a seat back frame. The frame 10 includes an upper frame 11 made of a pipe material and a lower frame 12 made of a press material. A lower portion of the lower frame 12 is swingably connected to the seat cushion frame.

  A pair of left and right pipe-shaped attachment portions 13 are fixed to the upper portion of the upper frame 11, and the attachment leg portions 14 a of the headrest 14 are inserted and held in the attachment portions 13.

  A vehicle compartment air conditioner 20 is attached to the upper frame 11 via a bracket 30. Specifically, the seat air conditioner 20 is formed at a blower 21 fixed to the bracket 30, a connecting cylinder part 22 extending downward from the blower 21, and a lower end part of the connecting cylinder part 22, and opening forward. The intake / exhaust port 23 is provided. In the embodiment, the vehicle interior air is sucked by the blower 21, and the sucked vehicle interior air is discharged from the intake / exhaust port 23.

  The seat air conditioner 20 is entirely covered with a cushion material for seat back, but at least a portion covering the suction port and the suction / exhaust port 23 of the blower 21 is set to have air permeability. . By operating the blower 21, seat air conditioning is performed in which the passenger compartment air is circulated in the seat. Note that the blower 21 may be a discharge type instead of suction.

  FIG. 3 shows an example of air volume setting for the air conditioner S11 for the passenger compartment and the air conditioner 20 for the seat. Each air volume is set using Δθ, which is a value obtained by subtracting the target temperature from the actual temperature in the passenger compartment, as the parameter, and the air volume increases as Δθ increases. Note that FIG. 3 is based on the assumption of cooling.

  The air volume in the cabin air conditioner S11 can be changed in a plurality of stages (12 stages in the embodiment). The air volume of the seat air conditioner 20 (in the blower 21) can be changed in a plurality of stages (in the embodiment, 5 stages), but the number of stages is smaller than the number of stages in the passenger compartment air conditioner S11. It is said that.

  When the air volume in the vehicle air conditioner S11 and the air volume in the seat air conditioner 20 are increased at the same time or only in the vehicle air conditioner S11 according to the increasing change in the temperature difference Δθ. And may be increased only by the air conditioner 20 for the passenger compartment.

  When the air volume in the passenger compartment air conditioner S11 and the air volume in the seat air conditioner 20 are increased simultaneously, the air volume increase control as shown in FIG. 4 is performed. That is, the time point t1 in FIG. 4 is a time when the condition for simultaneously increasing the air volume in the passenger compartment air conditioner S11 and the air volume in the seat air conditioner 20 is satisfied. At this time, the air volume is first increased in the passenger compartment air conditioner S11. At the time t2 delayed by a predetermined time T (for example, 3 to 5 seconds) from the increase in the air volume in the passenger compartment air conditioner S11, the air volume in the seat air conditioner 20 is increased.

  As described above, by first increasing the air volume in the passenger compartment air conditioner S11, the occupant predicts in advance an increase in the air volume in the seat air conditioner 20 in advance. Thereby, even if the air volume of the seat air conditioner 20 is increased, the annoyance felt by the passenger is reduced. Further, since the air volume of the air conditioner 20 is increased in advance by the increase of the air volume of the air conditioner S11 for the passenger compartment, the air volume of the air conditioner 20 for the seat is increased thereafter. It becomes difficult to feel the operation sound accompanying the increase in air volume.

  When the increase in the air volume of the passenger compartment air conditioner S11 and the increase in the air volume of the seat air conditioner 20 are performed at the same time, the increase in the air volume of both increases the operating noise at a stretch. It becomes. In addition, when the air volume increase in the seat air conditioner 20 is performed first and then the air volume increase in the seat air conditioner S11 is performed, the operation accompanying the increase in the air volume in the seat air conditioner 20 that is initially performed. The passenger is more likely to feel bothered by the increased sound.

  FIG. 5 shows an example of the control system of the present invention. In the figure, U is a controller (control unit) configured using a microcomputer. Signals from various switches or sensors S1 to S5 are input to the controller U. That is, the sensors S1 and S2 detect a set temperature (target indoor temperature) on the driver's seat side and the passenger seat side. In the embodiment, S1 detects an operation state of the switch 2, and S2 The operation status of the switch 4 is detected.

  Further, a signal from the temperature sensor S3 that detects the passenger compartment temperature on the driver's seat side and a signal from the temperature sensor S4 that detects the passenger compartment temperature on the passenger seat side are input. These temperature sensors S3 and S4 are appropriately provided, for example, on the left and right sides of the console box, or by detecting the temperature at the predetermined position on the driver's seat and the temperature at the predetermined position on the passenger's seat with an infrared sensor. You can choose. Further, at least a signal from the seat belt sensor S5 on the passenger seat side is input to the controller U (detection of whether there is an occupant in the passenger seat).

  Next, the control contents of the controller U will be described with reference to the flowchart of FIG. FIG. 6 shows an air conditioning control on the driver's seat side in an automatic mode during cooling (at least an air volume control in the passenger compartment air conditioner S11 and an air volume control in the seat air conditioner 20 are automatically controlled). The same applies to the passenger seat side. FIG. 6 shows an example of control particularly when the air volume is increased. In the following description, Q indicates a step.

  First, in Q1, signals from various sensors S1 to S5 are input. Thereafter, in Q2, it is determined whether or not the current vehicle interior temperature is greater than the set target temperature (determination of whether Δθ in FIG. 3 is greater than 0). If the determination in Q2 is NO, it is assumed that cooling (especially the operation of the seat air conditioner 20) is unnecessary, and the process returns as it is.

  When the determination in Q2 is YES, in Q3, Δθ, which is the difference between the room temperature and the target temperature, is checked against the map shown in FIG. 3, and the air volume in the passenger compartment air conditioner S11 and the seat air conditioner 20 are compared. The air volume at is set.

  After Q3, it is determined in Q4 whether or not only the air volume level in the passenger compartment air conditioner S11 is changed (increased). If the determination in Q4 is YES, the air volume in the passenger compartment air conditioner S11 is changed (increased) in Q5.

  When the determination in Q4 is NO, it is determined in Q6 whether or not the air volume is increased for both of the passenger compartment air conditioner S11 and the seat air conditioner 20. If YES in Q6, it is determined in Q7 whether a predetermined condition is satisfied. This predetermined condition specifies the state in which the operating sound of the floor 21 has a great influence on the occupant.

Specifically, in the embodiment, when all of the following three conditions (1) to (3) are satisfied, the predetermined condition is satisfied. It should be noted that when any one or any two of the following three conditions are satisfied, the predetermined condition may be satisfied.
(1) At a low vehicle speed of a predetermined vehicle speed (for example, 40 km / h) or less. At this time, since the running sound is small, the operating sound is likely to be anxious.
(2) When the increase degree of the air volume is small such that it is equal to or less than a predetermined degree (for example, when the air volume increases by one stage). When the degree of airflow increase is large, even if the operating noise increases, it is easy for the occupant to understand that the situation is unavoidable in order to reach the target temperature. Become.
(3) When a predetermined time (for example, 5 minutes to 10 minutes) or more has elapsed since the ignition switch was turned on. At this time, during the short period after the ignition switch is turned on, it is easy for the occupant to understand that it is unavoidable even if the operation noise is loud immediately after the air conditioning control is started, but the air conditioning control is almost stable. The operating sound (increased) in a state where it is performed is in a situation where the occupant tends to care.

  When the determination in Q7 is YES, the air volume is increased in the passenger compartment air conditioner S11 in Q8 (corresponding to time t1 in FIG. 4). Thereafter, in Q9, it is determined whether or not the predetermined time T has elapsed (confirmation as to whether or not the time point t2 in FIG. 4 has been reached). If the determination in Q9 is NO, the process returns to Q9.

  If YES in Q9, the air volume at the seat air conditioner 20 is increased in Q10 (corresponding to the increase in air volume at time t2 in FIG. 4).

  If the determination in Q7 is NO, the process returns as it is (no increase in air volume in the vehicle interior air conditioner S11 and the seat air conditioner 20). The process in the case of NO in the determination of Q7 is in a state of waiting for a situation in which the determination in Q7 is YES. However, when the determination in Q7 is NO, it is a situation in which the occupant does not care much about the operating noise, so the air volume increase in the passenger compartment air conditioner S11 and the air volume increase in the seat air conditioner 20 are performed simultaneously. It can also be.

  When the determination in Q6 is NO, the air volume at the seat air conditioner 20 is maintained at the current air volume. At this time, even when the increase in the air volume at the seat air conditioner 20 is requested, the increase in the air volume at the seat air conditioner 20 is waited until the increase in the air volume at the cabin air conditioner S11 is requested. .

Although the embodiment has been described above, the present invention is not limited to the embodiment, and can be appropriately changed within the scope described in the scope of claims. For example, the invention includes the following cases. .
(1) In the air conditioning operation panel P, the main switch 1 may be omitted, and the main switch may be turned on / off in accordance with, for example, a push / push operation at the center of the driver's seat switch 2. Further, according to, for example, a push-push operation at the center of the switch 4 for the passenger seat, switching between individual air-conditioning control independent of the driver's seat and air-conditioning control according to the setting for the driver's seat can be performed.
(2) The switches 6 and 7 (8 and 9) may be combined as a single switch, for example, switched on and off according to a push or push operation, and the air volume may be changed by the rotation operation.
(3) The seat air conditioner 20 can be provided only in the driver's seat or in all passenger seats.
(4) The air conditioning control based only on the setting for the driver seat can be performed without individually controlling the air conditioning for the driver seat and the passenger seat.
(5) The object of the present invention is not limited to what is explicitly stated, but also implicitly includes providing what is substantially preferred or expressed as an advantage.

  The present invention is suitable as a vehicle air conditioning control device.

P: Air-conditioning operation panel 1: Main switch 1a: Switch section (on / off)
1b: Switch part (for air volume change)
2: Switch (for driver's seat temperature setting)
3: Display (set temperature of driver's seat)
4: Switch (for passenger seat temperature setting)
5: Display (passenger seat set temperature)
6: Switch (for turning on / off the air conditioning unit for the driver's seat)
7: Switch (for changing the air volume of the air conditioner for the driver's seat)
8: Switch (for turning on / off the air conditioner for the passenger seat)
9: Switch (for changing the air volume of the passenger seat air conditioner)
20: Seat air conditioner 21: Blower 22: Connecting cylinder portion 23: Suction / exhaust port U: Controller S1: Sensor (target temperature for driver's seat)
S2: Sensor (target temperature for passenger seat)
S3: Sensor (room temperature at the driver's seat)
S4: Sensor (room temperature in the passenger seat)
S5: Sensor (passenger presence detection)
S11: Cab air conditioner S12: Driver seat air conditioner S13: Passenger seat air conditioner

Claims (5)

An air conditioner for vehicle compartment that generates conditioned air and supplies it to the vehicle interior;
An air conditioner for the seat that has a blower disposed in the seat and circulates the air in the passenger compartment in the seat;
Control means for controlling the vehicle compartment air conditioner and the seat air conditioner;
With
When the control means is in a condition to increase both the air volume in the passenger compartment air conditioner and the air volume in the seat air conditioner, the controller first increases the air volume in the passenger compartment air conditioner first. , Delay control to increase the air volume in the seat air conditioner with a delay,
A vehicle air-conditioning control device. In claim 1,
When the control means is in a condition that only increases the air volume in the seat air conditioner, the air volume in the seat air conditioner is satisfied until a condition for increasing the air volume in the passenger compartment air conditioner is satisfied. An air conditioning control device for a vehicle, characterized in that suppression control for suppressing an increase is performed. In claim 1 or claim 2,
The vehicle air conditioning control device, wherein the delay control and the suppression control by the control means are executed on condition that the influence of the operating sound of the seat air conditioning device on an occupant is large. . In claim 3,
The predetermined state is when the increase degree of the air volume in the passenger compartment air conditioner and the increase degree of the air volume in the seat air conditioner are each equal to or less than a predetermined degree set in advance. A vehicle air conditioning control device. In claim 3,
The vehicle air conditioning control device, wherein the predetermined state is set to be equal to or lower than a predetermined vehicle speed.

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