JP2008184126A - Outside air temperature display device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outside air temperature display device for a vehicle capable of making the outside air temperature felt by an occupant and the outside air temperature displayed in the vehicle approximately correspond to each other. <P>SOLUTION: An air conditioner 10 is provided with: an outside air temperature sensor 74 for detecting outside air temperature of the vehicle; a roof opening/closing switch 102 for setting an opening/closing state of a roof part of a body of the vehicle; a display for displaying outside air temperature indicated by set outside air temperature data; and an air conditioning ECU 64 for setting the outside air temperature data so that the outside air temperature displayed on the display gradually approaches the outside air temperature detected by the outside air temperature sensor 74 when the roof part is closed and when the outside air temperature detected by the outside air temperature sensor 74 is higher than that indicated by the outside air temperature data, and for setting the outside air temperature data so that the outside air temperature detected by the outside air temperature detection sensor 74 is displayed without changing when the roof part is opened. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an outside temperature display device for a vehicle.

  Conventionally, in the air conditioning control in the vehicle interior of the vehicle, the air conditioning control is generally performed so that the vehicle interior becomes a set temperature based on the outside air temperature detected by the outside air temperature sensor or the like.

  The outside air temperature sensor is installed near the grille opening of the bumper in front of the vehicle, for example, and is affected by heat from the radiator in the engine compartment. It may become higher.

For this reason, Patent Document 1 discloses a technique in which, for example, when the outside air temperature rises, the rise is delayed by a delay time constant and this is used for air conditioning control or outside air temperature display.
Japanese Patent Laid-Open No. 10-16540

  However, for example, when a vehicle equipped with a roof travels as an open car with the roof open, changes in the outside air temperature are immediately felt by the passengers, so the rise in the outside air temperature detected as in the prior art is delayed. When used for displaying the outside air temperature, the outside air temperature actually felt by the occupant may be different from the outside air temperature displayed on the vehicle, which may cause a sense of incongruity.

  The present invention has been made in consideration of the above-described facts, and provides a vehicle outside temperature display device that can substantially match an outside temperature felt by an occupant and an outside temperature displayed on the vehicle. Objective.

  In order to achieve the above object, the invention according to claim 1 is an outside air temperature detecting means for detecting an outside air temperature of a vehicle, and an open / close state setting means for setting an open / close state of an opening / closing part for opening / closing a part of the body of the vehicle. Display means for displaying the outside air temperature represented by the set outside air temperature data, and the outside air temperature detected by the outside air temperature detecting means when the opening / closing part is in the closed state and the outside air temperature data. When the temperature is higher than the temperature, the outside air temperature data is set so that the outside air temperature displayed on the display means gradually approaches the outside air temperature detected by the outside air temperature detecting means, and the open / close unit is in an open state. In this case, it is characterized by comprising setting means for setting the outside air temperature data so that the outside air temperature detected by the outside air temperature detecting means is displayed on the display means.

  According to the present invention, the outside air temperature data that is used for display on the display means is the outside air temperature detected by the outside air temperature detecting means when the opening / closing part opening / closing part that opens and closes a part of the vehicle body is in the closed state. When the outside air temperature is higher than the indicated outside air temperature, the outside air temperature data is set so that the outside air temperature displayed on the display means gradually approaches the outside air temperature detected by the outside air temperature detecting means. The outside air temperature data is set so that the outside air temperature detected by the outside air temperature detecting means is displayed on the display means as it is. That is, when the opening / closing part is in an open state, the outside air temperature displayed on the display means is not gradually changed, but the outside air temperature detected by the outside air temperature detecting means is displayed as it is. Even when the outside temperature suddenly rises when traveling on the road, it is possible to make the outside temperature felt by the occupant substantially coincide with the outside temperature displayed on the vehicle.

  According to a second aspect of the present invention, the opening / closing part may include at least one of a roof part of the vehicle and a window of the vehicle. For example, the vehicle window may be a side window that can be opened and closed.

  According to a third aspect of the present invention, the setting means is configured when the open / close section is in a closed state and the outside air temperature detected by the outside air temperature detecting means is equal to or less than the outside air temperature represented by the outside air temperature data. Alternatively, the outside air temperature data may be set so that the outside air temperature detected by the outside air temperature detecting means is displayed on the display means.

  According to a fourth aspect of the present invention, vehicle speed detection means for detecting a vehicle speed is further provided, and the control means executes the setting process of the outside air temperature data when the vehicle speed is equal to or higher than a predetermined threshold value. It may be.

  As described above, according to the present invention, there is an effect that it is possible to substantially match the outside air temperature felt by the occupant and the outside air temperature displayed on the vehicle.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the present embodiment, a case will be described in which the present invention is applied to a vehicle having an openable and closable roof that enables traveling as an open car.

  1 and 2 show a schematic configuration of a vehicle air conditioner (hereinafter referred to as “air conditioner 10”) according to the present embodiment.

  As shown in FIG. 1, the air conditioner 10 applied to the present embodiment has a refrigerant circulation path (refrigeration cycle) including a compressor 26, a condenser 28, an expansion valve 30, and an evaporator 32. An engine 14 that drives the vehicle is connected to the compressor 26 via a belt or the like (not shown), and the compressor 26 is rotationally driven by the driving force of the engine 14.

  As a result, in the air conditioner 10, the compressor 26 is driven to rotate and the refrigerant is circulated while the engine 14 is being driven. In the air conditioner 10, when the refrigerant circulated through the refrigeration cycle by driving the compressor 26 passes through the evaporator 32, the conditioned air blown into the vehicle compartment is cooled.

  The air conditioner 10 includes, for example, an air conditioning duct 38 concealed in the instrument panel 36 (see FIG. 3A), and the evaporator 32 is disposed in the air conditioning duct 38.

  The air conditioning duct 38 has an air inlet 40 formed at one opening end. The air intake 40 is formed with an air intake 40A for introducing outside air and an air intake 40B for introducing internal air. The air conditioning duct 38 is provided with an inside / outside air switching damper 42 for opening and closing each of the air intake ports 40A and 40B. Thereby, the air conditioner 10 can be switched between an outside air introduction mode for introducing air outside the vehicle and an inside air circulation mode for circulating air inside the vehicle interior.

  In the air conditioning duct 38, a blower fan 44 is provided between the air intake 40 and the evaporator 32. The blower fan 44 is driven by a blower motor 46, whereby outside air or inside air is sucked from the air intake port 40 into the air conditioning duct 38 as conditioned air.

  The conditioned air sucked by the blower fan 44 is sent to the evaporator 32. An air mix damper 48 and a heater core 50 are provided in the air conditioning duct 38 on the downstream side of the evaporator 32. The air mix damper 48 separates the conditioned air sent into the heater core 50 and the conditioned air that bypasses the heater core 50. Further, when the air mix damper 48 is closed (indicated by a solid line in FIG. 1), the conditioned air that has passed through the evaporator 32 bypasses the heater core 50 and reaches the maximum opening (indicated by a broken line in FIG. 1). In addition, the conditioned air that has passed through the evaporator 32 is sent to the heater core 50.

  The heater core 50 is configured such that engine coolant is circulated between the heater core 50 and the engine 14 by a water pump 52. The engine coolant is heated when the engine 14 is started. Thereby, the engine cooling water is supplied to the heater core 50, whereby the conditioned air passing through the heater core 50 is heated by the engine cooling water.

  In the air conditioning duct 38, the conditioned air heated by the heater core 50 and the conditioned air that bypasses the heater core 50 (the conditioned air that has been cooled by the evaporator 32) are mixed. Thereby, in the air conditioner 10, the air-conditioning wind of predetermined temperature is produced | generated. Further, in the air conditioner 10, the opening degree SWDD of the air mix damper 48 is controlled so that the conditioned air at the predetermined target blowing temperature can be obtained with the temperature of the conditioned air at this time as the target blowing temperature.

  On the other hand, at the opening end of the other side of the air conditioning duct 38 (opposite to the air intake port 40), a plurality of air outlets each opened toward a predetermined position in the passenger compartment are formed. In this embodiment, as an example, the defroster outlet 56 (center defroster outlet 56A and side defroster outlet 56B), register outlet 58 (center register outlet 58A, side register outlet 58B), foot outlet 60 ( There are provided a foot outlet 60A on the front seat side and a rear seat foot outlet 60B) opened at the foot on the rear seat side.

  In addition, a mode switching damper 62 that opens and closes each of the outlets is provided in the air conditioning duct 38. In the air conditioner 10, the mode switching damper 62 is operated according to the setting of the blowing mode so that the conditioned air is blown out from the blowing port corresponding to the blowing mode.

  In the air conditioner 10, as the air-conditioning air blowing mode, the FACE mode in which the air-conditioning air is blown from the register air outlet 58 (center register air outlet 58A and side register air outlet 58B), the foot air outlet 60 (the foot air outlet 60A and the rear seat foot air outlet). In addition to the FOOT mode for blowing the conditioned air from the outlet 60B) and the DEF mode for blowing the conditioned air from the defroster outlet 56 (center defroster outlet 56A and side defroster outlet 56B), the conditioned air is supplied from the register outlet 58 and the foot outlet 60. The BI-LEVEL mode for blowing out and the FOOT / DEF mode for blowing the conditioned air from the defroster outlet 56 and the foot outlet 60 are set.

  On the other hand, as shown in FIG. 2, the air conditioner 10 includes an air conditioner ECU 64 that controls the operation of the air conditioner 10. The air conditioner ECU 64 is connected to a blower motor 46, a water pump 52, a servo motor 66 that drives the inside / outside air switching damper 42, a servo motor 68 that drives the air mix damper 48, and a servo motor 70 that drives the mode switching damper 62. Yes.

  The air conditioner ECU 64 includes a room temperature sensor 72 that detects the temperature inside the vehicle, an outside air temperature sensor 74 that detects the temperature outside the vehicle, a solar radiation sensor 76 that detects the amount of solar radiation, and a cooling water temperature sensor that detects the temperature of engine cooling water. 78, various sensors such as a post-evaporator temperature sensor 80 for detecting the temperature of the conditioned air that has passed through the evaporator 32 (post-evaporator temperature) are connected.

  Furthermore, an operation panel 82 for operating the air conditioner 10 and performing various setting operations is connected to the air conditioner ECU 64.

  As shown in FIG. 3A, the operation panel 82 is provided on the instrument panel 36 and can be operated by a passenger seated in the front seat. As shown in FIG. 3B, the operation panel 82 includes a display 84 for various displays, an operation switch (A / C switch) 86 for operating / stopping the air conditioner 10, and a temperature setting ( Temperature setting switch 88 for setting temperature up / down), inside air circulation switch 90 for selecting the inside air circulation mode (switching between the inside air circulation mode and the outside air introduction mode), setting the air volume of the conditioned air (up / down of the blower air volume) A blower switch 92 for performing the operation and a mode changeover switch 94 for selecting a blow-out port for blowing the conditioned air are provided.

  As a result, the air conditioner 10 can set the blow-out mode as well as the operation / stop of the air-conditioning operation, the switching between the inside air circulation mode and the outside air introduction mode, the temperature setting, and the air volume setting while watching the display on the display 84 and the like. The air conditioner ECU 64 can perform an air conditioning operation based on the setting on the operation panel 82.

  The operation panel 82 is provided with an auto switch 96. When the auto switch 96 is turned on, the air conditioner ECU 64 sets the temperature of the blown air (target blow temperature) so that the vehicle interior becomes the set temperature based on the set temperature, the room temperature, the outside air temperature, the amount of solar radiation, and the like. Settings such as air volume and blowing mode are performed, and air conditioning control based on the settings is performed.

  That is, the air conditioner ECU 64 sets a target blow temperature based on the set temperature, environmental conditions, and the like, and the rotation speed of the compressor 26 (rotation speed of the engine 14) and the air mix damper 48 so that the set target blow temperature is obtained. In addition to setting the opening, etc., selecting the outlet and setting the blowout air volume (blower air volume), and performing the air conditioning operation based on these settings, the vehicle interior is set to the set temperature and the vehicle interior is set The temperature is maintained.

  The operation panel 82 is provided with an outside air temperature display switch 98. In the air conditioner ECU 64 (see FIG. 2), when the outside air temperature display switch 98 is turned on, the outside air temperature detected by the outside air temperature sensor 74 (see FIG. 2) is turned off on the display 84 for a predetermined time or the outside air temperature display switch 98 is turned off. To display.

  Although details will be described later in the present embodiment, when the vehicle is traveling as an open car with the roof portion opened, the outside temperature detected by the outside temperature sensor 74 is displayed on the display 84 as it is, and the roof portion is displayed. The outside air temperature detected by the outside air temperature sensor 74 is less than the outside air temperature displayed on the display 84, such as when the vehicle is traveling with traffic jams or when stopping, or when entering the tunnel. When it becomes high, it controls so that the outside temperature displayed on the display 84 gradually approaches the outside temperature detected by the outside temperature sensor 74. As a result, the sensible temperature of the occupant and the outside air temperature displayed on the display 84 can be substantially matched.

  As shown in FIG. 2, a roof opening / closing switch 102 (see also FIG. 3A) is connected to the air conditioner ECU 64. By turning on the roof opening / closing switch 102, a roof portion of a vehicle (not shown) is opened. Thus, the vehicle can run as an open car, and the roof opening / closing switch 102 is turned off to close the roof portion.

  In the air conditioner ECU 64, the display control of the outside air temperature is performed as described above according to the on / off state of the roof opening / closing switch 102.

  In addition, the air conditioner ECU 64 is connected to a memory 104, and stores outside temperature display variables such as TAMold and TAMdisp described later, various parameters, and the like. The memory 104 may be composed of, for example, a non-volatile memory or a volatile memory connected to a power source at all times so that the stored contents are maintained even when an ignition switch (not shown) is turned off. May be.

  In addition, a timer 106 is connected to the air conditioner ECU 64, and for example, time information including date and time information can be acquired.

  As shown in FIG. 2, the air conditioner ECU 64 is connected to the engine ECU 22. An engine ECU and an alternator (generator) 15 that can be connected to the engine 14 and generate electric power are connected to the engine ECU. The AC power generated by being connected to the engine 14 while the engine 14 is being driven is converted into DC power by the inverter 17 and the battery 19 is charged.

  In the present embodiment, in order to save energy even in air conditioning control, the air conditioner 10 is set with an economy mode that prevents the energy saving effect from being impaired. For this reason, in the air conditioner 10, it is possible to select an economy mode that prioritizes energy saving effects (hereinafter referred to as an eco mode) and a comfort priority mode that prioritizes comfort in the passenger compartment.

  As shown in FIG. 2, the air conditioner ECU 64 is connected to an eco mode switch 100 for switching whether or not to select the eco mode. As shown in FIG. 3A, the eco-mode switch 100 is provided at a predetermined position of the instrument panel 36 that can be operated mainly by the driver. FIG. 3C shows an outline of the eco-mode switch 100. The eco-mode switch 100 is turned on / off by a pressing operation (touch operation), whereby the eco-mode and the comfort priority mode are switched. Switching takes place.

  In the air conditioner ECU 64 shown in FIG. 2, when the eco mode switch 100 is operated and the eco mode is selected, the setting is switched to the setting based on the eco mode. The air conditioner ECU 64 cancels the eco mode when the eco mode switch 100 is operated again or when a predetermined manual operation is performed on the operation panel 82 during the air conditioning operation in the eco mode. Thus, the air conditioning operation is performed in the comfort priority mode (normal mode).

The air-conditioner ECU 64, when starting the air conditioning operation, set the set temperature, cabin temperature, outside air temperature, based on the environmental conditions of solar radiation and the like, the target outlet air temperature T _AO for the passenger compartment and the set temperature, set The compressor 26 is driven, the engine coolant is circulated, and the air mix damper 48 is opened / closed (servo motor 68 is driven) so that the target blowout temperature T _AO is obtained.

The target blowing temperature T _{AO at} this time can be set using the following general arithmetic expression when the set temperature T _SET , the room temperature TR, the outside air temperature TAM, and the solar radiation amount TS are used.

T _AO = K _SET × T _SET −KR × TR−KAM × TAM−KS × TS + C

(K _SET , KR, KAM, and KS are gains, and C is a correction constant)

  Next, as an operation of the present embodiment, an outside air temperature setting process displayed on the display 84 in the control executed by the air conditioner ECU 64 will be described with reference to a flowchart shown in FIG.

  Note that the control shown in FIG. 4 is executed when the air conditioner 10 is in an operable state, for example, when an ignition switch of a vehicle (not shown) is turned on.

  In step 200, it is determined whether or not a sufficient time has elapsed since the last time the ignition switch was turned off from the previous time, that is, whether or not a predetermined time has elapsed since the operation was stopped. To do. Specifically, the previous ignition switch is turned on based on the current time information obtained from the timer 106 and the time information obtained from the timer 106 in step 224, which will be described later when this routine is executed last time. The elapsed time from the time when it was turned off is calculated, and it is determined whether or not this calculation time is a predetermined time or more. When the elapsed time is less than the predetermined time, it is highly possible that the outside air temperature detected from the outside air temperature sensor 74 is higher than the actual outside air temperature due to the heat radiation from the engine compartment. It is set to a value that can be determined.

  Then, if a predetermined time or more has passed since the time when the ignition switch was turned off from the previous time, the process proceeds to step 202, and if not, the process proceeds to step 206.

  In step 202, the current outside air temperature TAMnow is obtained from the outside air temperature sensor 74, and in step 204, the current outside air temperature TAMnow is substituted for TAMold, which is a variable for setting the outside air temperature. Note that TAMold when this routine was executed last time is stored in the memory 104, and this TAMold is updated to TAMnow.

  In step 206, TAMold stored in the memory 104 is read and substituted into TAMdisp which is a variable for displaying the outside air temperature. The TAMdisp is stored in the memory 104. When the outside air temperature display switch 98 is turned on, the air conditioner ECU 64 reads the TAMdisp from the memory 104 and displays it on the display 84 for a predetermined time or until the outside air temperature display switch 98 is turned off. In the state in which the outside air temperature is displayed on the display 84, the air conditioner ECU 64 reads the TAMdisp from the memory 104 at a predetermined time interval and displays the TAMdisp on the display 84.

  Thus, when the predetermined time or more has not passed since the time when the ignition switch was turned off from the previous time, the outside air temperature detected from the outside air temperature sensor 74 due to the heat radiation from the engine compartment is the actual outside air temperature. Since it is highly likely that the temperature is higher, TAMold, which is the outside temperature when the ignition switch was turned off from the previous time, is read from the memory 104 and used as the outside temperature TAMdisp for display as it is, and since the previous time the ignition switch was turned on When a predetermined time or more has elapsed since the engine was turned off, it is unlikely that the outside air temperature detected by the outside air temperature sensor 74 is higher than the actual outside air temperature due to the heat radiation from the engine compartment. It is possible to update TAMold to the current outside temperature TAMnow. And the outside air temperature TAMdisp for display.

  In step 208, the outside air temperature TAMnow is acquired from the outside air temperature sensor 74. In step 210, the current vehicle speed is acquired from the vehicle speed sensor 81, and it is determined whether or not the acquired vehicle speed is equal to or greater than a predetermined threshold value. When the vehicle speed is less than this value, the predetermined threshold is the actual outside air temperature detected by the outside air temperature sensor 74 due to the heat from the engine compartment or the heat from the road surface during traffic jams or when the vehicle is stopped. It is set to a value that can be determined to be highly likely to be higher.

  If the vehicle speed is equal to or higher than the predetermined threshold, the process proceeds to step 212. If the vehicle speed is less than the predetermined threshold, the process proceeds to step 216.

  In step 216, the outside air temperature detected by the outside air temperature sensor 74 is higher than the actual outside air temperature due to the influence of the heat from the engine compartment and the heat from the road surface, for example, when the vehicle speed is less than a predetermined threshold, for example, when the vehicle is congested or stopped. Therefore, the lower value of the current outside air temperature TAMnow and TAMold is substituted for TAMold. Therefore, when the current outside temperature TAMnow is higher than TAMold, TAMold before the outside temperature rises is set as a new TAMold.

  On the other hand, if the vehicle speed is equal to or higher than the predetermined threshold value, it is determined in step 212 whether or not the roof portion of the vehicle is in an open state by determining whether or not the roof opening / closing switch 102 is turned on.

  When the roof portion of the vehicle is in the open state, the process proceeds to step 214, and when it is in the closed state, the process proceeds to step 218.

  In step 214, the current outside air temperature TAMnow is substituted for TAMold. That is, the current outside air temperature TAMnow is used as it is for display. This is because, for example, when entering a tunnel while driving in an environment where the outside air temperature is low, such as in winter, the outside air temperature may rise suddenly, but when the roof part is open, the passenger feels the temperature change. This is because it is easy.

  On the other hand, when the roof portion of the vehicle is in the closed state, it is determined in step 218 whether or not the current outside air temperature TAMnow is higher than TAMold. If the current outside air temperature TAMnow is higher than TAMold, the process proceeds to step 220. If the current outside air temperature TAMnow is equal to or lower than TAMold, the process proceeds to step 214.

  In step 220, TAMold + k × t is substituted for TAMold. Here, k × t is a time constant. That is, k is a coefficient for determining the degree of increase in time constant, and t is time. t is initialized, for example, when this routine is executed or after execution of steps 214 and 216, and is counted by the timer 106.

  Accordingly, when the vehicle speed is equal to or higher than the predetermined threshold and the roof portion of the vehicle is in the closed state, if the current outside air temperature TAMnow is higher than TAMold, TAMold is set so that TAMold gradually approaches the outside air temperature TAMnow. . This is because when the outside temperature suddenly rises when the vehicle roof is in a closed state, the outside temperature displayed on the display 84 fluctuates while the outside temperature hardly changes, while the outside temperature changes. This is to prevent a difference between the sense and the displayed outside air temperature.

  In step 222, it is determined whether or not the ignition switch is turned off. If it is not turned off, the process returns to step 206 and the same processing is repeated. If the ignition switch is turned off, the process proceeds to step 224. .

  In step 224, the current time information is acquired from the timer 106 and stored in the memory 104 for the next time this routine is executed and the elapsed time is calculated in step 200.

  As described above, in the present embodiment, when the vehicle speed is equal to or higher than the predetermined threshold and the roof portion of the vehicle is in the open state, control is performed so that the current outside air temperature TAMnow is displayed on the display 84. It becomes possible to make the temperature and the outside temperature displayed on the vehicle substantially coincide with each other, and it is possible to prevent the passenger from feeling uncomfortable.

  In FIG. 4, the case where the outside air temperature TAMdisp for display is set has been described. However, as the process for setting the TAMcont for air conditioning control, the process shown in the flowchart shown in FIG. 5 is executed. May be. In addition, the same code | symbol is attached | subjected to the same part as FIG. 4, and the description is abbreviate | omitted.

  4 is different from FIG. 4 in that TAMold is substituted for the outside air temperature TAMcont for air conditioning control in step 206A, there is no processing in step 212 in FIG. 4, and whether or not the roof portion of the vehicle is in an open state. When the vehicle speed is equal to or higher than a predetermined threshold and the current outside air temperature TAMnow is higher than TAMold, TAMold is set so that TAMold gradually approaches the outside air temperature TAMnow. If the current outside air temperature TAMnow is set to the TAMcont for air conditioning control when the vehicle roof is in an open state by the same processing as in FIG. This is because, when the outside air temperature suddenly rises, such as when entering a tunnel, air conditioning control is performed so as to cool the passenger compartment, causing a sense of incongruity to the passengers.

  In the present embodiment, the case where control is performed so that the current outside air temperature TAMnow is displayed as it is on the display 84 when the roof portion of the vehicle is in an open state is described. However, the vehicle is not equipped with a roof portion. Alternatively, for example, the outside air temperature TAMdisp displayed on the display 84 may be set according to the state of an openable / closable window such as a side window of the vehicle. In this case, instead of determining whether or not the roof portion is in the open state in step 212 in FIG. 4, the roof portion is opened, for example, whether or not at least a part of the side window of the vehicle is fully open. It may be determined whether the state is the same as the state.

It is a figure which shows schematic structure of an air conditioner. It is a block diagram which shows schematic structure of the control system of an air conditioner. (A) is the schematic which shows the instrument panel in which an operation panel is provided, (B) is the schematic which shows an example of an operation panel, (C) is the schematic which shows an example of an eco mode switch. It is a flowchart which shows the control routine for setting the external temperature for a display performed with air-conditioner ECU. It is a flowchart which shows the control routine for setting the external temperature for the air-conditioning control performed by air-conditioner ECU.

Explanation of symbols

10 Air conditioner (vehicle outside temperature display device)
14 Engine 64 Air-conditioner ECU (setting means)
74 Outside air temperature sensor (outside air temperature detecting means)
81 Vehicle speed sensor (vehicle speed detection means)
82 Operation panel 84 Display (display means)
98 Outside air temperature display switch 102 Roof open / close switch (open / close state setting means)
104 memory 106 timer

Claims (4)

An outside air temperature detecting means for detecting the outside air temperature of the vehicle,
An opening / closing state setting means for setting an opening / closing state of an opening / closing part for opening / closing a part of the vehicle body;
Display means for displaying the outside air temperature represented by the set outside air temperature data;
When the open / close section is in a closed state and the outside air temperature detected by the outside air temperature detecting unit is higher than the outside air temperature represented by the outside air temperature data, the outside air temperature displayed on the display unit gradually increases. When the outside air temperature data is set so as to approach the outside air temperature detected by the outside air temperature detecting means, and the opening / closing part is in an open state, the outside air temperature detected by the outside air temperature detecting means is displayed on the display means. Setting means for setting the outside air temperature data to be displayed;
The outside temperature display device for vehicles provided with.   The vehicle outside temperature display device according to claim 1, wherein the opening / closing portion includes at least one of a roof portion of the vehicle and a window of the vehicle.   The setting means is detected by the outside air temperature detecting means when the opening / closing portion is in a closed state and the outside air temperature detected by the outside air temperature detecting means is equal to or lower than the outside air temperature represented by the outside air temperature data. The vehicle outside air temperature display device according to claim 1 or 2, wherein the outside air temperature data is set so that the outside air temperature is displayed on the display means. It further comprises vehicle speed detecting means for detecting the vehicle speed,
4. The vehicle exterior according to claim 1, wherein the control unit executes the setting process of the outside air temperature data when the vehicle speed is equal to or higher than a predetermined threshold value. 5. Temperature display device.

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