JP3709850B2 - Air conditioning system for vehicles, air conditioning system with voice recognition device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle air conditioner that easily recognizes a voice command and an air conditioning system with a voice recognition device.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is known a device that operates in-vehicle devices such as navigation and audio in response to a voice command from an occupant (for example, Japanese Patent Application Laid-Open No. 57-118299). In the device described in this publication, the operation of the air-conditioning fan, which is a noise source, is stopped along with the voice command input operation. As a result, the voice command is accurately input without being disturbed by the fan noise, and the in-vehicle device can be operated normally according to the voice command. In addition, there are some which reduce the driving speed of the air conditioning fan by a certain amount in accordance with the voice command input operation.
[0003]
[Problems to be solved by the invention]
However, in the above apparatus, the fan is stopped or reduced by a certain amount at the time of a voice command, so that air conditioning comfort is greatly impaired.
[0004]
An object of the present invention is to provide a vehicle air conditioner and an air conditioning system with a voice recognition device that can easily recognize a voice command while maintaining good air conditioning comfort.
[0005]
[Means for Solving the Problems]
  (1) The invention of claim 1 is a vehicle air conditioner that blows out the inside air or outside air sucked by driving of a blower fan from a predetermined outlet according to an air conditioning mode, and is a target according to a set temperature or a manual command Fan control means for controlling the driving speed of the blower fan to the fan speed, recognition of the passenger's voice command, driving means for driving the electronic device based on the voice command, and detection of input start of the voice command from the passenger An input start detecting means; and a fan reducing means for reducing the drive speed of the blower fan at least from the target fan speed according to the air conditioning mode when the input start of the voice command is detected by the input start means detection. , Having at least a vent outlet and another outlet, and a fan reducing means,Air conditioning mode other than differential modeWhen an air conditioning mode that includes a vent outlet is selected, the drive speed of the blower fan is greatly reduced compared to when an air conditioning mode that does not include a vent outlet is selected.However, when the differential mode is selected, the drive speed of the blower fan is not reduced.This achieves the above-mentioned purpose.
  (2) The invention of claim 2 is a vehicle air conditioner that blows out the inside air or outside air sucked by the drive of the blower fan from a predetermined outlet according to the air conditioning mode, and is a target according to the set temperature or the manual command Fan control means for controlling the driving speed of the blower fan to the fan speed, recognition of the passenger's voice command, driving means for driving the electronic device based on the voice command, and detection of input start of the voice command from the passenger When the start of voice command input is detected by the input start detection means and the input start means, the drive speed of the blower fan is reduced below the target fan speed, and the drive speed of the blower fan is increased when the inside air is sucked than when the outside air is sucked The object mentioned above is achieved by providing a fan reducing means for reducing.
  (3) The invention of claim 3This is a vehicle air conditioner that blows out the inside or outside air sucked in by the blower fan drive from a predetermined air outlet according to the air conditioning mode, and controls the drive speed of the blower fan to the target fan speed according to the set temperature or manual command Fan control means for recognizing the voice command of the occupant, driving means for driving the electronic device based on the voice command, input start detection means for detecting the start of voice command input from the occupant, and input start detection means When the start of voice command input is detected, fan reduction means for reducing the drive speed of the blower fan at least from the target fan speed according to the air conditioning mode is provided, and the blower outlet includes at least the vent blower outlet and the other blower outlets. When the air conditioning mode including the vent outlet is selected and the fan reducing means is selected to select the air conditioning mode not including the vent outlet. With greatly reducing the driving speed of the blower fan, to achieve the object described above by reducing the driving speed of the blower fan than the target fan speed according to the target air temperature.
  (4) The invention of claim 4This is a vehicle air conditioner that blows out the inside or outside air sucked in by the blower fan drive from a predetermined air outlet according to the air conditioning mode, and controls the drive speed of the blower fan to the target fan speed according to the set temperature or manual command Fan control means for recognizing the voice command of the occupant, driving means for driving the electronic device based on the voice command, input start detection means for detecting the start of voice command input from the occupant, and input start detection means When the start of voice command input is detected, the blower fan drive speed is reduced from the target fan speed, and the blower fan drive speed is greatly reduced when the inside air is sucked than when the outside air is sucked. The fan reduction means reduces the drive speed of the blower fan from the target fan speed according to the target blowing temperature, thereby achieving the above-described purpose. It is formed.
  (5) The air conditioning system with a voice recognition device according to the invention of claim 5 is the vehicle air conditioning device according to any one of claims 1 to 4, wherein voice input means for inputting a voice command from the occupant, and voice input The above-mentioned object is achieved by providing a recognition means for recognizing the voice command input by the means.
[0006]
【The invention's effect】
As described above in detail, according to the present invention, when the start of voice command input is detected, the blower fan drive speed is reduced at least from the target fan speed in accordance with the air conditioning mode or the suction mode. The noise level in the passenger compartment can be effectively reduced. As a result, it is possible to easily recognize the voice command while maintaining good air conditioning comfort.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
-First embodiment-
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a diagram showing a schematic configuration of a vehicle air conditioner according to an embodiment of the present invention. When the blower fan 2 is rotated by driving the blower motor 1, the inside air or the outside air is sucked into the duct 4 through the inside / outside air switching door 3, and is cooled by passing through the evaporator 5. This cooling air passes through the heater core 7 according to the opening of the air mix door 6, bypasses the heater core 7 while being heated or cooled, and is mixed downstream of the heater core 7. It is blown out from the outlet, defrost outlet, etc. The vehicle air conditioner according to the present embodiment is applied to an auto air conditioner that automatically adjusts the vehicle interior temperature by controlling the blown air volume of the blower fan 2, the opening of the air mix door 6, the air conditioning mode, etc. according to the set temperature. To do. Hereinafter, the air volume control of the automatic air conditioner will be mainly described.
[0008]
FIG. 2 is a block diagram showing a configuration of an air conditioning system with a voice recognition device according to the present embodiment. The motor control circuit 10 includes an air conditioner switch 11 for instructing start of the air conditioner operation, an auto switch 12 for instructing start of the auto air conditioner operation, a fan switch 13 for manually setting the blown air amount, and the inside / outside air switching door 3. REC switch 14 for instructing introduction of inside air, DEF switch 15 for instructing removal of window fogging (DEF mode), outside air sensor 16 for detecting outside air temperature, inside air sensor 17 for detecting room temperature, and detection of solar radiation An insolation sensor 18, a suction temperature sensor 19 for detecting the air temperature downstream of the evaporator 5, a temperature switch 20 for inputting a set temperature, an off switch 21 for stopping the air conditioner operation, and an input for instructing the start of voice command input. A start switch 22 is connected. The motor control circuit 10 executes processing as described later based on the input signals from these, applies a predetermined voltage to the blower motor 1, and controls driving of the blower fan 2.
[0009]
An input start switch 22 and a microphone 23 are connected to the voice recognition circuit 30. The input start switch 22 is provided, for example, in the steering, and the microphone 23 is provided inside the instrument panel in front of the driver seat. A voice pattern corresponding to a plurality of voice commands is stored in advance in the memory of the voice recognition circuit 30. When the input start switch 22 is turned on, the voice recognition circuit 30 starts voice recognition processing. That is, the voice signal pattern captured from the microphone 23 is compared with the voice pattern stored in the memory, the voice command is recognized, and the voice recognition signal is output to a driving circuit such as navigation. When the input start switch 22 is turned off, the voice recognition process is terminated. Such processing in the speech recognition circuit 30 is well known, and detailed description thereof is omitted. Note that the voice recognition process may be automatically terminated after a predetermined time from the turning on of the input start switch 22.
[0010]
FIG. 3 is a flowchart showing an example of processing in the motor control circuit 10. This flowchart is started by turning on an engine key switch, for example. First, in step S1, the start of air conditioning operation is determined. That is, it is determined whether or not the motor 1 has started to be driven by any one of the air conditioner switch 11, the auto switch 12, the DEF switch 15, and the fan switch 13. In step S2, startup air volume control is performed. This gradually increases the voltage applied to the motor 1 when the air volume is automatically set, thereby preventing a strong wind from blowing out suddenly. Note that, in step S2, so-called low water temperature air volume control is performed at the same time, which restricts blowing into the passenger compartment when a heating operation is commanded when the engine cooling water temperature is low.
[0011]
Next, in step S3, it is determined whether voice recognition processing is being performed. When the input start switch 22 is on, it is determined that the voice recognition process is being performed, and the process proceeds to step S4. When the input start switch 22 is off, it is determined that the voice recognition process is not being performed, and the process proceeds to step S5. In step S4, an air volume restriction process as described later is performed, and a predetermined voltage VF is applied to the motor 1. In step S5, it is determined whether the fan speed is set manually, that is, whether the fan switch 13 is on. If step S5 is affirmed, the process proceeds to step S6, where a motor voltage corresponding to the operation of the fan switch 13 is applied to perform manual air volume control. The fan speed can be switched to, for example, the fourth speed according to the operation of the fan switch 13.
[0012]
If step S5 is negative, the process proceeds to step S7, and automatic air volume control is performed according to the target blowing temperature XM. The target blowing temperature XM is obtained by a well-known arithmetic expression based on input signals from the sensors 16 to 19, the switch 20, and the like. The motor applied voltage VF at the time of automatic air volume control is calculated based on the characteristics shown in FIG. 4, for example, and this motor voltage VF is applied to the motor 1 to control the motor speed. The characteristic a in FIG. 4 is a characteristic when the amount of solar radiation is small in the VENT mode or the B / L mode, and the characteristic b is a characteristic at normal time.
[0013]
In step S8, it is determined whether or not the off switch 21 is operated. If negative, the process returns to step S3. If step S8 is affirmed, the process proceeds to step S9, the motor applied voltage is set to 0, the drive of the fan 2 is stopped, and the flowchart is ended.
[0014]
Next, the air volume restriction process in step S4 will be described. FIG. 5 is a flowchart illustrating an example of the air volume restriction process. First, in step S11, it is determined whether or not the fan switch 13 is on. If step S11 is affirmed, the process proceeds to step S12, and manual air volume control corresponding to the operation of the fan switch 13 is performed as in step S6 described above. When step S11 is denied, it progresses to step S13 and it is determined whether the DEF switch 15 is ON. If step S13 is affirmed, the process proceeds to step S14, and automatic air volume control is performed in accordance with the target blowing temperature XM as in step S7 described above.
[0015]
When the fan switch 13 is on and the DEF switch 15 is off, step S13 is denied and the process proceeds to step S15. In step S15, it is determined whether or not the air conditioning mode is the VENT mode. The VENT mode is a mode in which cold air is blown out from the vent outlet toward the upper body of the occupant. In the automatic air conditioner of the present embodiment, the air conditioning mode is automatically controlled according to the target blowing temperature XM. In other words, the air conditioning mode is changed in the order of the VENT mode, the B / L mode, and the FOOT mode with the increase in the target outlet temperature XM. Further, when the outside air temperature is equal to or lower than a predetermined value in the FOOT mode, the air conditioning mode is changed to the D / F mode.
[0016]
If it is determined in step S15 that the mode is the VENT mode, the process proceeds to step S16 to determine whether or not the REC switch 14 is on. If step S16 is affirmed, the routine proceeds to step S17, where it is determined whether or not the motor applied voltage VF by automatic air flow control, that is, the motor applied voltage VF obtained from the characteristics of FIG. . If step S17 is affirmed, the process proceeds to step S18, and if not, the process proceeds to step S14. In step S18, a predetermined voltage A is applied to the motor 1.
[0017]
If it is determined in step S16 that the REC switch 14 is off, the process proceeds to step S19, and it is determined whether or not the motor applied voltage VF by the automatic air flow control is greater than a predetermined voltage B set in advance. The predetermined voltage B is set to a value larger than the predetermined voltage A, for example (see FIG. 4). If step S19 is positive, the process proceeds to step S20, and if negative, the process proceeds to step S20. In step S20, a predetermined voltage B is applied to the motor 1.
[0018]
On the other hand, if it is determined in step S15 that the mode is not the VENT mode, the process proceeds to step S21 to determine whether or not the B / L mode is set. The B / L mode is a mode in which cool air is blown out from the vent outlet toward the upper body of the occupant and warm air is blown out from the foot outlet toward the occupant's feet. If step S21 is affirmed, the process proceeds to step S22, and it is determined whether or not the motor applied voltage VF by the automatic air flow control is larger than a predetermined voltage C set in advance. The predetermined voltage C is set to a value larger than the predetermined voltages A and B, for example (see FIG. 4). If step S22 is affirmed, the process proceeds to step S23, and if not, the process proceeds to step S14. In step S23, a predetermined voltage C is applied to the motor 1.
[0019]
If it is determined in step S21 that the mode is not the B / L mode, that is, the FOOT mode or the D / F mode, the process proceeds to step S24, and it is determined whether or not the motor applied voltage VF by the automatic air flow control is larger than a predetermined voltage D set in advance. To do. The predetermined voltage D is set to a value larger than the predetermined voltages A, B, C, for example (see FIG. 4). The FOOT mode is a mode in which hot air is blown out from the foot outlet, and the D / F mode is a mode in which hot air is blown out from the foot outlet and the defrost outlet. If step S24 is positive, the process proceeds to step S25, and if negative, the process proceeds to step S14. In step S23, a predetermined voltage D is applied to the motor 1. The predetermined voltages A to D are set to satisfy A <B <C <D, but may be set to satisfy A = B <C = D.
[0020]
The operation of the vehicle air conditioner according to the first embodiment will be described more specifically.
When the input start switch 22 is off, normal air volume control is performed. That is, when the fan switch 13 is operated, the air volume is adjusted according to the operation (step S6), and when the automatic air volume adjustment is performed when the fan switch 13 is not operated, the blown air volume is automatically controlled according to the characteristics of FIG. S7).
[0021]
When the input of the voice command is started by turning on the input start switch 22, the air volume restriction process is started (step S4). In this case, when the fan switch 13 is operated, the operation is prioritized, and the air volume is adjusted according to the operation of the fan switch 13 as in the normal air volume control (step S12). As a result, it is possible to always blow out the air volume desired by the passenger. If the DEF switch 15 is operated during automatic air volume control without operating the fan switch 13, the air volume is not restricted, and the air volume corresponding to the temperature set value XM is blown out from the differential outlet (step S14). Thereby, window fogging can be removed immediately.
[0022]
When the automatic air flow control is controlled to the VENT mode and the internal air circulation is selected by turning on the REC switch 14, the maximum value of the motor applied voltage VF is limited to a predetermined value A (step S18), and the REC switch 14 is turned off. When the introduction of outside air is selected, the value is limited to a predetermined value B (step S20). Thereby, for example, the motor applied voltage VF1 at the target blowing temperature XM1 shown in FIG. 4 is controlled to the predetermined value A or B, the amount of air blown from the vent outlet is reduced, and the noise level in the passenger compartment is reduced. As a result, an audio signal can be accurately input via the microphone 23, and an audio pattern can be accurately recognized by the audio recognition circuit 30. Further, since the predetermined value A <B is set, the air volume restriction amount at the time of inside air circulation becomes larger, and the noise at the time of inside air circulation can be reduced to a level substantially equal to the noise at the time of introducing outside air. It should be noted that when the suction mode for sucking the inside air and the outside air at a predetermined ratio is set, the maximum value of the motor applied voltage VF may be set to a value larger than A and smaller than B.
[0023]
If the B / L mode is controlled during automatic air volume control, the maximum value of the motor applied voltage VF is limited to a predetermined value C (step S23), and if controlled to the FOOT mode or the D / F mode, the maximum value is set to the predetermined value D. Restricted (step S25). As a result, the motor voltage VF1 at the target blowout temperature XM1 is controlled to the predetermined value C or D, the amount of air blown from the foot blowout port and the defrost blowout port is reduced, and the noise level in the passenger compartment can be reduced. In this case, since the predetermined values C and D are set larger than the predetermined values A and B, the air volume restriction amount is smaller than that in the VENT mode, and good air conditioning comfort can be obtained. That is, in general, the noise level in the passenger compartment increases greatly due to the blowout from the vent outlet, but the maximum air volume in the VENT mode is greatly limited compared to other modes, so the noise level in the passenger compartment is constant. While maintaining the following, it is possible to minimize the decrease in the amount of blown air. In addition, since the predetermined values A, B, and C are set smaller than the predetermined value D, the air volume restriction amount in the air conditioning mode including the vent outlet (VENT mode, B / L mode) does not include the vent outlet. It becomes larger than the air volume restriction amount in the mode (FOOT mode, D / F mode), and the noise level in the passenger compartment can be effectively reduced. When the input of the voice command is finished, the operation returns to the automatic air volume control operation (step S7).
[0024]
As described above, in the first embodiment, when the input of the voice command is started by turning on the input start switch 22, the maximum fan blowout amount is controlled according to the air conditioning mode. That is, paying attention to the fact that blowing from the vent outlet becomes the largest noise source even with the same fan air volume, the motor applied voltage in the VENT mode and B / L mode is significantly limited compared to other modes. (A, B, C <D). As a result, it is possible to minimize a reduction in the amount of air blown into the passenger compartment while keeping the noise level below a certain value. As a result, it is possible to easily recognize the voice command while maintaining good air conditioning comfort. Also, the maximum fan blowout amount is controlled according to the suction mode. In other words, since the motor applied voltage during the circulation of the inside air is significantly limited as compared with the motor applied voltage during the introduction of the outside air (A <B), it is possible to effectively suppress an increase in noise level caused by the air suction mode. it can. Further, since the air volume restriction process is invalidated when the fan switch 13 is operated, the air-conditioning comfort is maintained without reducing the air volume when the occupant is setting the air volume as desired.
[0025]
-Second Embodiment-
A second embodiment of the present invention will be described with reference to FIGS.
The second embodiment differs from the first embodiment in the contents of the air volume restriction process. That is, in the first embodiment, the maximum blown air volume is controlled according to the air conditioning mode and the suction mode when the voice command is input. In the second embodiment, in addition to this, the air mix door 6 is controlled. Is controlled in accordance with the opening degree (target blowing temperature XM). 6 to 8 are flowcharts showing an example of the air volume restriction process according to the second embodiment. In addition, the same code | symbol is attached | subjected to the location same as FIG. 5, and the difference is mainly demonstrated below.
[0026]
As shown in FIG. 6, it is determined in step S15 that the VENT mode is selected. If it is determined in step S16 that the REC switch 14 is turned on, the process proceeds to step S31, and if it is determined that the REC switch 14 is turned off, the process proceeds to step S32. In step S31 and step S32, it is determined whether or not the air mix door 6 is in the full cool position (solid line in FIG. 1). If step S31 is positive, the process proceeds to step S33, and if negative, the process proceeds to step S34. If step S32 is positive, the process proceeds to step S35, and if negative, the process proceeds to step S36. In steps S33 to S36, it is determined whether or not the motor applied voltage VF by the automatic air flow control is larger than predetermined voltages E, F, G, and H set in advance. When step S33 to step S36 are affirmed, the process proceeds to step S37 to step S40, respectively, and when negative, the process proceeds to step S14. In steps S37 to S40, predetermined voltages E, F, G, and H are applied to the motor 1, respectively. Here, for example, the predetermined voltages E and G at the time of full cool are set larger than the predetermined voltages F and H other than full cool (E> F, G> H). Thereby, the reduction | decrease of the blowing air quantity at the time of a full cool is suppressed. Further, E <G and F <H are set. Thereby, the noise level at the time of inside air circulation can be reduced significantly.
[0027]
If it is determined in step S15 that the mode is not the VENT mode, the process proceeds to step S41 in FIG. 7, and it is determined whether or not the mode is the B / L mode. If step S41 is affirmed, the process proceeds to step S42 to determine whether or not the REC switch 14 is on. If step S42 is affirmed, the process proceeds to step S43, and if not, the process proceeds to step S44. In steps S43 and S44, it is determined whether or not the air mix door 6 is at the full hot position (dotted line in FIG. 1). If step S43 is positive, the process proceeds to step S45, and if negative, the process proceeds to step S46. If step S44 is affirmed, the process proceeds to step S47, and if not, the process proceeds to step S48. In steps S45 to S48, it is determined whether or not the motor applied voltage VF by the automatic air flow control is greater than predetermined voltages I, J, K, and L set in advance. When step S45 to step S48 are affirmed, the process proceeds to step S49 to step S52, respectively, and when negative, the process proceeds to step S14. In steps S49 to S52, predetermined voltages I, J, K, and L are applied to the motor 1, respectively. Here, for example, the predetermined voltages I and K at full hot are set higher than the predetermined voltages J and L other than full hot (I> J, K> L). Thereby, the reduction | decrease of the blowing air quantity at the time of a full hot is suppressed. Further, I <K, E and J <L, F are set. As a result, the noise level during the circulation of the inside air can be significantly reduced, and the decrease in the blown-out air volume can be suppressed as compared to the VENT mode.
[0028]
If it is determined in step S41 that the mode is not the B / L mode, the process proceeds to step S53 in FIG. 8 to determine whether or not the REC switch 14 is on. If step S53 is positive, the process proceeds to step S54, and if negative, the process proceeds to step S55. In steps S54 and S55, it is determined whether or not the air mix door 6 is at the full hot position (dotted line in FIG. 1). If step S54 is positive, the process proceeds to step S56, and if negative, the process proceeds to step S57. If step S55 is affirmed, the process proceeds to step S58, and if not, the process proceeds to step S59. In steps S56 to S59, it is determined whether or not the motor applied voltage VF by the automatic air flow control is larger than predetermined voltages M, N, O, and P set in advance. When step S56 to step S59 are affirmed, the process proceeds to step S60 to step S63, respectively, and when negative, the process proceeds to step S14. In steps S60 to S63, predetermined voltages M, N, O, and P are applied to the motor 1, respectively. Here, for example, the predetermined voltages M and O at full hot are set larger than the predetermined voltages N and P other than full hot (M> N, O> P). Thereby, the reduction | decrease of the blowing air quantity at the time of a full hot is suppressed. Further, M <O, K, E, N <P, L, F are set. As a result, the noise level during the circulation of the inside air can be greatly reduced, and a decrease in the amount of blown air can be suppressed in the VENT mode and in the B / L mode.
[0029]
  As described above, in the second embodiment, the maximum blown air volume is controlled according to the opening degree of the air mix door 6 when the voice command is input. In other words, the maximum value of the motor applied voltage VF at full cool and full hot is set to a value other than full cool and full hot.bigI tried to do it. Thereby, while reducing the noise level in a vehicle interior, the fall of the blowing air quantity at the time of a full cool and a full hot is suppressed, and it can prevent as much as possible impairing air-conditioning comfort.
[0030]
As described above, the present invention is characterized in that the blown air volume is reduced according to the air conditioning mode or the suction mode when a voice command is input, and the relationship between the constants A to P is limited to the above embodiment. It is not something. In the above embodiment, the air conditioning mode is automatically set. However, the air conditioning mode may be manually set by operating a mode selection switch. Moreover, although the said embodiment was applied to the auto air conditioner, you may apply to a manual air conditioner. Although the motor applied voltage VF is decreased when the motor applied voltage VF at the time of automatic air flow control reaches the maximum value A to P, the air conditioning mode, the suction mode, and the target blowing temperature are not reached even if the maximum value A to P is reached. The motor applied voltage vF may be decreased according to XM.
[0031]
In correspondence with the above embodiment and claims, the processes (step S6, step S7, etc.) in the blower motor 1 and the motor control circuit 10 are the fan control means, the input start switch 22 is the input start detection means, and the motor control circuit 10 (Step S4) constitutes a fan reduction means, the microphone 23 constitutes a voice input means, and the voice recognition circuit 30 constitutes a recognition means. Note that the components and steps for realizing each means are not limited to those described above.
[Brief description of the drawings]
FIG. 1 is a diagram showing a schematic configuration of a vehicle air conditioner according to an embodiment of the present invention.
FIG. 2 is a block diagram showing a configuration of an air conditioning system with a voice recognition device according to an embodiment of the present invention.
FIG. 3 is a flowchart showing an example of processing in the motor control circuit according to the embodiment of the present invention.
FIG. 4 is a graph showing one characteristic of a motor applied voltage.
FIG. 5 is a flowchart showing an example of air volume control processing in the motor control circuit according to the first embodiment.
FIG. 6 is a flowchart (part 1) illustrating an example of an air volume control process in the motor control circuit according to the second embodiment;
FIG. 7 is a flowchart (part 2) illustrating an example of an air volume control process in the motor control circuit according to the second embodiment;
FIG. 8 is a flowchart (part 3) illustrating an example of an air volume control process in the motor control circuit according to the second embodiment;
[Explanation of symbols]
1 Blower motor 2 Blower fan
10 Motor control circuit 13 Fan switch
14 REC switch 15 DEF switch
22 Input start switch 23 Microphone
30 Speech recognition circuit

Claims (5)

A vehicle air conditioner that blows out the inside air or outside air sucked in by driving of a blower fan from a predetermined outlet according to an air conditioning mode,
Fan control means for controlling the drive speed of the blower fan to a target fan speed according to a set temperature or a manual command;
Driving means for recognizing a voice command of an occupant and driving an electronic device based on the voice command;
Input start detection means for detecting the input start of the voice command from the occupant;
A fan reduction means for reducing the drive speed of the blower fan from at least the target fan speed according to the air conditioning mode when the input start of the voice command is detected by the input start detection means;
The air outlet has at least a vent air outlet and another air outlet,
The fan reduction means increases the drive speed of the blower fan when an air conditioning mode other than the differential mode and an air conditioning mode including the vent outlet is selected than when an air conditioning mode not including the vent outlet is selected. The vehicle air conditioner is characterized in that when the differential mode is selected, the drive speed of the blower fan is not reduced . A vehicle air conditioner that blows out the inside air or outside air sucked in by driving of a blower fan from a predetermined outlet according to an air conditioning mode,
Fan control means for controlling the drive speed of the blower fan to a target fan speed according to a set temperature or a manual command;
Driving means for recognizing a voice command of an occupant and driving an electronic device based on the voice command;
Input start detection means for detecting the input start of the voice command from the occupant;
When the input start of the voice command is detected by the input start detection means, the drive speed of the blower fan is reduced from the target fan speed, and the drive speed of the blower fan is greatly reduced at the time of intake of the inside air than at the time of intake of the outside air A vehicle air conditioner. A vehicle air conditioner that blows out the inside air or outside air sucked in by driving of a blower fan from a predetermined outlet according to an air conditioning mode,
Fan control means for controlling the drive speed of the blower fan to a target fan speed according to a set temperature or a manual command;
Driving means for recognizing a voice command of an occupant and driving an electronic device based on the voice command;
Input start detection means for detecting the input start of the voice command from the occupant;
A fan reduction means for reducing the drive speed of the blower fan from at least the target fan speed according to the air conditioning mode when the input start of the voice command is detected by the input start detection means;
The air outlet has at least a vent air outlet and another air outlet,
When the air conditioning mode including the vent outlet is selected, the fan reducing means greatly reduces the drive speed of the blower fan than when the air conditioning mode not including the vent outlet is selected, and sets the target outlet temperature. Accordingly , the vehicle air conditioner reduces the drive speed of the blower fan below the target fan speed . A vehicle air conditioner that blows out the inside air or outside air sucked in by driving of a blower fan from a predetermined outlet according to an air conditioning mode,
Fan control means for controlling the drive speed of the blower fan to a target fan speed according to a set temperature or a manual command;
Driving means for recognizing a voice command of an occupant and driving an electronic device based on the voice command;
Input start detection means for detecting the input start of the voice command from the occupant;
When the input start of the voice command is detected by the input start detection means, the drive speed of the blower fan is reduced below the target fan speed, and the drive speed of the blower fan is greatly reduced when the inside air is sucked than when the outside air is sucked and a fan reduction means that,
The vehicle air conditioner characterized in that the fan reduction means reduces the drive speed of the blower fan from the target fan speed in accordance with a target blowing temperature . The vehicle air conditioner according to any one of claims 1 to 4,
Voice input means for inputting voice commands from the occupant;
An air conditioning system with a voice recognition device, comprising: recognition means for recognizing a voice command input by the voice input means.

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