JP2005349854A - Vehicle ventilation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently ventilate a passenger compartment before boarding.
SOLUTION: A cooling fan 5 that discharges air inside the vehicle compartment to the outside of the vehicle compartment via a battery chamber 3 in which a battery 2 for driving an electric motor is disposed, and a ride intention detection means 33 that detects a passenger's intention to get on the vehicle, In-vehicle temperature detecting means 31 for detecting the in-vehicle temperature T1, outside air temperature detecting means 32 for detecting the outside air temperature T2, and whether or not the cooling fan 5 needs to be operated is determined according to the detected in-vehicle temperature T2 and the outside air temperature T1. When the boarding intention detection means 33 detects the boarding intention and it is determined that the cooling fan 5 needs to be operated, the control means 30 that operates the cooling fan 5 is provided.
[Selection] Figure 3

Description

  The present invention relates to a vehicle ventilation device having a cooling fan for a battery mounted on an electric vehicle, a hybrid vehicle, or the like.

  Conventionally, in a vehicle including an electric motor such as an electric vehicle or a hybrid vehicle, a battery as a drive source of the electric motor is cooled to prevent a decrease in battery performance. As this type of battery cooling device, there is one in which air whose temperature is adjusted by an air conditioner is led to a battery chamber to cool the battery (see, for example, Patent Document 1). According to this, the battery chamber and the vehicle interior are connected via the duct, the cooling fan is disposed in this duct, and the air in the vehicle interior is guided to the battery chamber by driving the cooling fan. The air led to the battery compartment is discharged out of the passenger compartment or returned to the passenger compartment.

JP-A-10-306722

  In the apparatus described in the above publication, since the air conditioner is operated and the cooling fan is operated during vehicle operation, the interior of the vehicle is not ventilated with the vehicle left unattended. Therefore, for example, if a vehicle is left for a long time in hot weather, the temperature in the passenger compartment rises due to the effects of solar radiation, causing discomfort to the passenger when the passenger gets on.

  A vehicle ventilation device according to the present invention includes a cooling fan that discharges air inside the vehicle compartment to the outside of the vehicle compartment via a battery compartment in which a battery for driving the electric motor is disposed, and a ride intention detection unit that detects the ride intention of the occupant, And a control means for operating the cooling fan when the boarding intention is detected by the boarding intention detection means.

  According to the present invention, when the occupant's intention to get on is detected, the cooling fan for cooling the battery is operated and the air in the passenger compartment is discharged outside the passenger compartment. Will be ventilated to improve comfort when riding.

-First embodiment-
A first embodiment of a vehicle ventilation device according to the present invention will be described below with reference to FIGS.
FIG. 1 is a side view showing a main configuration of a vehicle to which the present invention is applied. This vehicle is, for example, a hybrid vehicle that travels by a combination of an engine and an electric motor (both not shown), and a battery 2 as a drive source of the electric motor is mounted at the rear of the vehicle. In addition, this invention is applicable not only to a hybrid vehicle but to an electric vehicle.

  An air conditioner 10 for air conditioning the vehicle interior is mounted on the front of the vehicle. The air conditioner 10 adjusts the inside air or outside air sucked through the air conditioning duct 11 by driving the blower fan to a desired temperature by the heater cooling unit, and then blows it out into the passenger compartment. An inside / outside air switching door 12 for switching between the intake of inside air and outside air is provided. This type of air conditioner 10 is well known and will not be described in detail.

  A cooling device 1 for cooling the battery 2 is mounted at the rear of the vehicle, that is, between the trunk and the rear seat. The configuration of the cooling device 1 is shown in FIG. The battery 2 is accommodated in the battery chamber 3, and the battery chamber 3 communicates with the vehicle interior behind the headrest of the rear seat via the intake duct 4. A cooling fan 5 is disposed in the intake duct 4. When the cooling fan 5 is driven during normal vehicle operation, air in the vehicle compartment is blown into the battery chamber 3 through the intake duct 4 to cool the battery. The air that has passed through the battery chamber 3 is discharged to the outside of the vehicle compartment via the exhaust duct 7 or returned to the vehicle compartment via the circulation duct 8 according to the switching of the switching door 6.

  By the way, for example, if a vehicle is left for a long time in hot weather, the temperature in the passenger compartment rises due to the effects of solar radiation, causing discomfort when a passenger gets on the vehicle. In order to suppress this, in this Embodiment, the cooling device 1 is functioned as a ventilator as follows.

  FIG. 3 is a block diagram showing the configuration of the ventilator according to the present embodiment. The controller 30 includes an inside air temperature sensor 31 that detects the inside temperature T1, an outside air temperature sensor 32 that detects the outside air temperature T2, a lock release sensor 33 that detects the unlocking of the door, and an open / close detection sensor that detects the opening and closing of the door. 34 and an ignition switch 35 are connected. The controller 30 executes the following processing in accordance with the signals from these, and outputs control signals to the driving motor 36 of the cooling fan 5 and the driving actuator 37 of the inside / outside air switching door 12.

  4 and 5 are flowcharts illustrating an example of ventilation processing executed by the controller 30. FIG. This flowchart starts when the ignition switch 35 is turned off and the door lock is released. That is, it starts when the occupant's intention to board is detected by the unlock sensor 33. Note that the circulation duct 8 is always closed by the switching door 6 during the ventilation process.

  The controller 30 is preset with a lower limit value P and an upper limit value Q as a comfortable temperature region in the vehicle. These lower limit value P and upper limit value Q are set to different values depending on the region, race, climate, and the like. The controller 30 first reads the in-vehicle temperature T1 detected by the inside air temperature sensor 31 in step S1 of FIG. Next, in step S2, it is determined whether the in-vehicle temperature T1 is lower than a predetermined lower limit value P. If step S2 is negative, the process proceeds to step S3, where it is determined whether or not the vehicle interior temperature T1 is not less than the lower limit value P and not more than the upper limit value Q, that is, whether or not the interior of the vehicle is in a comfortable temperature range. If step S3 is affirmed, the process proceeds to step S4. In this case, it is not necessary to ventilate the interior of the vehicle, and the cooling fan 5 is turned off (operation stopped) and the process is terminated.

  If step S2 is affirmed, the process proceeds to step S5, and the outside air temperature T2 detected by the outside air temperature sensor 32 is read. Next, in step S6, it is determined whether the vehicle interior temperature T1 is equal to or higher than the outside air temperature T2. When step S6 is affirmed, it progresses to step S4 and the cooling fan 5 is turned off. In this case, ventilation is not performed because the temperature inside the vehicle is lowered when ventilation is performed.

  If step S6 is negative, the process proceeds to step S7, where it is determined whether the vehicle interior temperature T1 is lower than the outside air temperature T2. If step S7 is negative, it is determined that an outside temperature reading error has occurred, and the process proceeds to step S4. If step S7 is affirmed, that is, if the vehicle interior temperature T1 is lower than the lower limit value P and lower than the outside air temperature T2, it is determined that ventilation in the vehicle is necessary, and the process proceeds to step S21 in FIG.

  On the other hand, if step S3 is negative, the process proceeds to step S8, where it is determined whether the in-vehicle temperature T1 is higher than the upper limit value Q. If step S8 is negative, it is determined that an internal temperature reading error has occurred, and the process proceeds to step S4. If step S4 is affirmed, the process proceeds to step S9, and the outside air temperature T2 detected by the outside air temperature sensor 32 is read. Next, in step S10, it is determined whether the vehicle interior temperature T1 is equal to or lower than the outside air temperature T2. When step S10 is affirmed, it progresses to step S4 and the cooling fan 5 is turned off. In this case, ventilation is not performed because the temperature inside the vehicle becomes higher when ventilation is performed.

  When step S10 is denied, it will progress to step S11 and it will be determined whether vehicle interior temperature T1 is higher than outside temperature T2. If step S11 is negative, it is determined that there is an outside temperature reading error, and the process proceeds to step S4. If the determination in step S11 is affirmative, that is, if the vehicle interior temperature T1 is higher than the upper limit value Q and higher than the outside air temperature T2, it is determined that ventilation in the vehicle is necessary, and the process proceeds to step S21 in FIG.

  In step S22, a control signal is output to the motor 36 to turn on (operate) the cooling fan 5, and a control signal is output to the actuator 37 to switch the inside / outside air switching door 12 to the inside air circulation side (inside air circulation mode). Thereby, the air in the vehicle interior is discharged outside the vehicle, and the vehicle interior temperature T1 approaches the outside air temperature T2. Next, in step S23, it is determined whether the vehicle interior temperature T1 is equal to the outside air temperature T2. If step S22 is positive, the process proceeds to step S23. In this case, the cooling fan 5 is turned off because there is no need for further ventilation.

  If step S22 is negative, the process proceeds to step S24, and it is determined whether or not the door is opened based on a signal from the open / close detection sensor 34. If step S24 is negative, the process proceeds to step S27, and it is determined whether or not the door unlocking is canceled by the signal from the unlocking sensor 33, that is, whether or not the passenger is willing to board. If step S27 is affirmed, the process proceeds to step S23, and if not, the process returns to step S22.

  On the other hand, if step S24 is affirmed, the process proceeds to step S25, and it is determined whether or not the door is closed by a signal from the open / close detection sensor 34. When step S25 is affirmed, it determines with the passenger | crew's boarding operation having been complete | finished, and progresses to step S23. If step S25 is negative, the process proceeds to step S26, and it is determined whether or not the ignition switch 35 is turned on. When step S26 is affirmed, it determines with the passenger | crew's boarding operation having been complete | finished, and progresses to step S23. If step S26 is negative, the process returns to step S22.

  An operation map of the cooling fan 5 by the above control is shown in FIG. The hatched region in the figure, that is, the region where the vehicle interior temperature T1 is higher than the upper limit value Q and higher than the outside air temperature T2 (region A1), and the region where the vehicle interior temperature T1 is lower than the lower limit value P and lower than the outside air temperature T1 (region A2). ), The cooling fan 5 is operated to ventilate the interior of the vehicle. Outside the areas A1 and A2, the operation of the cooling fan 5 is stopped and the ventilation is finished.

Next, operation | movement of the vehicle ventilation apparatus which concerns on 1st Embodiment is demonstrated more concretely.
(1) T <P
If the vehicle is left for a long time in winter or the like, the vehicle interior temperature T1 may become lower than the lower limit value P. In this case, when the vehicle interior temperature T1 is lower than the outside air temperature T2 when the passenger releases the door lock outside the vehicle, the cooling fan 5 is turned on and the inside / outside air switching door 12 is switched to the inside air circulation side (step S7 → Step S21). As a result, as shown in FIGS. 7 and 9, low-temperature air inside the vehicle is sucked into the intake duct 4 by the cooling fan 5, and is discharged outside the vehicle through the exhaust duct 7 (start of ventilation operation). As a result, the vehicle interior temperature T1 rises and approaches the outside air temperature T2.

  When the vehicle interior temperature T1 becomes equal to the outside air temperature T2, the ventilation operation ends (step S22 → step S23). In this case, since the vehicle interior temperature T1 has increased to the outside air temperature T2, it is possible to reduce discomfort when the passenger gets on the vehicle. On the other hand, if the door is locked before the interior temperature T1 becomes equal to the outside air temperature T2, it is estimated that the intention to get on is lost, and the ventilation operation is terminated (step S27 → step S23). This prevents wasteful ventilation operation and saves power consumption.

  When the inside / outside air switching door 12 is switched to the inside air circulation side, that is, when the ventilation operation is performed in the inside air circulation mode, the inside of the vehicle becomes negative pressure. At this time, when the occupant opens the door 15 to get on, outside air flows into the vehicle in a negative pressure as shown in FIGS. In this case, the ventilation operation is performed in the inside air circulation mode until the occupant sits on the seat after opening the door 15 and closes the door 15, in other words, until the riding operation is completed. As a result, the vehicle interior temperature T1, particularly the temperature in the vicinity of the door 15 in the vehicle, approaches the outside air temperature T2 in a short time, and the passenger's discomfort can be efficiently reduced.

  When the door 15 is closed and the riding operation is completed, the cooling fan 5 is turned off (step S25 → step 23). As a result, the occupant does not feel negative pressure, and the uncomfortable feeling can be resolved. Even when the ignition switch 35 is turned on before closing the door 51, the cooling fan 5 is turned off (step S26 → step S23). In this case, it is expected that the occupant will continue to start the air conditioning operation or automatically start the air conditioning operation, so the ventilation operation is unnecessary.

(2) T> Q
If the vehicle is left for a long time in summer or the like, the in-vehicle temperature T1 may become higher than the upper limit value Q due to the influence of solar radiation. In this case, when the vehicle interior temperature T1 is higher than the outside air temperature T2 when the passenger releases the door lock, the cooling fan 5 is driven and the inside / outside air switching door 12 is switched to the inside air circulation side (step S11 → step S21). ). As a result, the high-temperature air in the vehicle is sucked into the intake duct 4 by the cooling fan 5 and discharged outside the vehicle through the exhaust duct 7 (start of ventilation operation). As a result, the vehicle interior temperature T1 decreases and approaches the outside air temperature T2.

  When the vehicle interior temperature T1 becomes equal to the outside air temperature T2 by the ventilation operation, the ventilation operation ends (step S22 → step S23). In this case, since the in-vehicle temperature T1 has decreased to the outside air temperature T2, it is possible to reduce discomfort when the passenger gets on the vehicle. The operation after the start of the ventilation operation is the same as in the case of T <P described above. That is, once the door lock is released, the ventilation operation ends when the door is locked again. Further, when the door is closed after the door is opened during the ventilation operation, the cooling fan 5 is turned off. Even when the ignition switch 35 is turned on before the door 51 is closed, the cooling fan 5 is turned off.

  When the room temperature T1 is not less than the lower limit value P and not more than the upper limit value Q (P ≦ T1 ≦ Q), the occupant rarely feels uncomfortable, and therefore the ventilation by the cooling fan 5 is not performed. When the indoor temperature T1 is lower than the lower limit value P and is equal to or higher than the outside air temperature T2, when the ventilation operation is performed, the indoor temperature T1 is further reduced, and the passengers feel uncomfortable. Further, when the indoor temperature T1 is higher than the upper limit value Q and is equal to or lower than the outside air temperature T1, if the ventilation operation is performed, the indoor temperature T1 is further increased and passenger discomfort increases. Therefore, in these cases, ventilation operation is not performed, and an increase in passenger discomfort is suppressed.

According to the vehicle ventilation apparatus which concerns on 1st Embodiment, there can exist the following effects.
(1) When release of the door lock is detected, it is determined whether or not ventilation in the vehicle interior is necessary according to the vehicle interior temperature T1 and the outside air temperature T2, and if it is determined that ventilation is necessary, the cooling fan 5 for cooling the battery is turned on. I started to work. As a result, when the interior of the vehicle is at a high temperature or a low temperature, the interior temperature T1 can be lowered or increased to the same level as the outside air temperature T2, and uncomfortable feelings when riding can be suppressed. Further, since the ventilation operation is performed immediately before the riding operation by detecting the door lock release, it is efficient.
(2) Since ventilation is performed using the cooling fan 5 for cooling the battery, the interior of the vehicle can be ventilated without adding a dedicated fan for ventilation. For this reason, the increase in cost can be suppressed. That is, since the fan used in the vehicle air conditioner is a sirocco fan, even if the sirocco fan is rotated in the reverse direction, the air in the vehicle interior cannot be discharged outside the vehicle interior. It can be easily discharged out of the passenger compartment. Further, the vehicle interior can be ventilated even when the vehicle air conditioner is set to the inside air circulation mode.
(3) Since the ventilation operation is performed on the condition that the vehicle interior temperature T1 is lower than the lower limit value P of the comfortable temperature region or higher than the upper limit value Q, unnecessary ventilation operation can be prevented and power consumption can be saved. .

(4) Even when the vehicle interior temperature T1 is lower than the lower limit value P, when the vehicle interior temperature T1 is lower than the upper limit value Q even when the vehicle interior temperature T1 is higher than the upper limit value Q, the ventilation operation is performed. Since this is not done, discomfort does not increase due to the ventilation operation, and the interior of the vehicle can be effectively ventilated. In other words, for example, if the vehicle is left for a short time and the air conditioning operation in the vehicle has not ended so long, the vehicle interior temperature T1 is higher than the upper limit value Q but lower than the outside air temperature T2, or the vehicle interior temperature T1 is the lower limit value. There are cases where it is lower than P but higher than the outside air temperature T2. If the ventilation operation is performed in these cases, the conditioned air in the vehicle is discharged outside the vehicle, and the comfort is deteriorated. In this respect, if the necessity of the ventilation operation is determined according to the vehicle interior temperature T1 and the outside air temperature T2 as in the present embodiment, the air-conditioned air is not discharged outside the vehicle, and efficient ventilation inside the vehicle is achieved. Is possible.

(5) Since the ventilation operation is performed in the inside / outside circulation mode until the door 15 is closed after the door 15 is opened, the outside air flows into the vehicle through the door 15, and the temperature near the door close to the passenger is efficiently removed from the outside air. The temperature can be brought close to T2.
(6) Since the cooling fan 5 is turned off after the door 15 is closed, the occupant does not feel negative pressure in the vehicle, and the uncomfortable feeling can be resolved.
(7) Since the cooling fan 5 is turned off when the door lock is canceled after the door lock is released, the cooling fan 5 can be easily turned off by an operation from the outside of the vehicle when the passenger stops riding.

-Second Embodiment-
A second embodiment of the vehicle ventilation device according to the present invention will be described with reference to FIG.
In the first embodiment, the ventilation operation is ended when the door 15 is closed after the door 15 is opened and when the ignition switch 35 is turned on after the door 15 is opened (step S25 → step S23, step S26 → Step S23). On the other hand, in the second embodiment, the following processing is added between step S25 and step S23 in FIG. 5 and between step S26 and step S23, respectively.

  FIG. 11 is a flowchart showing an example of processing in the controller 30 constituting the vehicle ventilation device according to the second embodiment. 11 mainly shows the differences from FIG. 5, and the same reference numerals are given to the same portions as FIG. If the door 15 is detected to be closed in step S25 after the door 15 is opened, the process proceeds to step S31. In step S31, a control signal is output to the actuator 37 to switch the inside / outside air switching door 12 to the outside air introduction side (outside air introduction mode). Next, in step S32, it is determined whether or not the ignition switch 35 is on. If step S32 is positive, the process proceeds to step S33, and if negative, the process returns to step S22.

  In step S33, it is determined whether or not the air conditioner 10 is turned on by an occupant's operation. If step S33 is affirmed, the interior of the vehicle can be ventilated by the air conditioner 10, so the process proceeds to step S23, and the cooling fan 5 is turned off. When step S33 is denied, it will progress to step S34 and it will be determined whether vehicle interior temperature T1 and outside temperature T2 are equal. If the determination in step S34 is affirmative, the interior of the vehicle does not require ventilation, so the process proceeds to step S23. If the determination is negative, the process proceeds to step S35. In step S35, it is determined whether or not the engine is turned on. If step S35 is affirmed, it is determined that the occupant has started the vehicle operation by turning on the engine, and the process proceeds to step S23 to turn off the cooling fan 5. If step S35 is negative, the process returns to step S33.

  On the other hand, if it is determined in step S25 that the door 15 is not closed and it is determined in step S26 that the ignition switch 35 is on, the process proceeds to step S36. If it is determined in step S26 that the ignition switch 35 is off, the process proceeds to step S22. In step S36, it is determined whether or not the air conditioner 10 is turned on by an occupant's operation. If the determination is affirmative, the process proceeds to step S23, and if the determination is negative, the process proceeds to step S37. In step S37, it is determined whether the vehicle interior temperature T1 and the outside air temperature T2 are equal. If the determination is affirmative, the process proceeds to step S23, and if the determination is negative, the process proceeds to step S38. In step S38, it is determined whether or not the engine is turned on. If the determination is affirmative, the process proceeds to step S23, and if the determination is negative, the process returns to step S25.

A characteristic operation of the vehicle ventilation device according to the second embodiment will be described.
Also in the second embodiment, as in the first embodiment, when the vehicle interior temperature T1 is lower than the lower limit value P and lower than the outdoor air temperature T2, or when the vehicle interior temperature T1 is higher than the upper limit value Q and higher than the outdoor air temperature T2. The cooling fan 5 is turned on and the ventilation operation is started. In this state, when the occupant opens the door 15 and gets on and closes the door 15, the inside / outside air switching door 12 is switched to the outside air introduction side while the cooling fan 5 is on (step S31). Thus, the ventilation operation can be continued in the outside air introduction mode without negative pressure inside the vehicle. In addition, when the vehicle interior temperature T1 becomes equal to the outside air temperature T2, the cooling fan 5 is turned off because it is not necessary to perform further ventilation operation (step S32 → step S22 → step S23).

  If the ignition switch 35 is turned on during the ventilation operation in the outside air introduction mode, the cooling fan 5 is operated in accordance with the air conditioner 10 being turned on and the engine being turned on. That is, if the passenger turns on the air conditioner 10 before the vehicle interior temperature T1 becomes equal to the outside air temperature T2, the interior of the vehicle can be ventilated by the air conditioner 10 without operating the cooling fan 5, so that the operation of the cooling fan 5 stops. (Step S33 → Step S23). Even when the engine is turned on to start the vehicle operation, the cooling fan 5 stops operating (step S35 → step S23).

  On the other hand, when the ventilation operation is performed in the inside air circulation mode, even when the ignition switch 35 is turned on with the door 15 opened, the cooling fan 5 is operated in accordance with the on state of the air conditioner 10 and the on state of the engine. The That is, when the passenger turns on the air conditioner 10 before the vehicle interior temperature T1 becomes equal to the outside air temperature T2, the operation of the cooling fan 5 stops (step S36 → step S23). Even when the engine is turned on to start the vehicle operation, the cooling fan 5 stops operating (step S38 → step S23).

  According to the second embodiment described above, since the inside / outside air switching door 12 is switched to the outside air introduction side when the door 15 is closed, the ventilation operation by the cooling fan 5 can be performed without any sense of incongruity even after the passenger gets on. Can continue. Further, since the ventilation operation is continued until the air conditioner 10 is turned on or the engine is turned on after the ignition switch 35 is turned on, passenger comfort can be further enhanced.

  In the above embodiment, the boarding intention is detected by detecting the unlocking of the door by the unlocking sensor 33, but other boarding intention detecting means may be used. Although the cooling fan 5 is arranged at the rear of the vehicle, the arrangement of the cooling fan 5 is not limited to this. If the cooling fan 5 is activated when a boarding intention is detected, the configuration of the controller 30 as the control means is not limited to that described above. That is, the cooling fan 5 may not be operated according to the vehicle interior temperature T1 and the outside air temperature T2. In the above embodiment, it is determined whether or not the cooling fan 5 needs to be operated according to the vehicle interior temperature T1 and the outside air temperature T2. When the vehicle interior temperature T1 is higher than the upper limit value Q and higher than the outside air temperature T2, the vehicle interior temperature T1 is lower than the lower limit. The cooling fan 5 is operated when it is lower than the value P and lower than the outside air temperature T2. However, the present invention is not limited to this, and the cooling fan 5 may be operated when other conditions are satisfied (for example, when the difference between the vehicle interior temperature T1 and the outside air temperature T2 is equal to or greater than a predetermined value).

  Although the inside temperature sensor 31 detects the inside temperature T1 and the outside temperature sensor 32 detects the outside temperature T2, the configurations of the inside temperature detecting means and the outside temperature detecting means are not limited to this. The inside / outside air switching door 12 may be any switching means. The operation start of the cooling fan 5 and the switching of the inside / outside air switching door 12 may not be performed at the same time as long as the cooling fan 5 is switched to the inside air circulation mode at the time of operation. Although the opening / closing detection sensor 34 detects the opening / closing of the door 15, the configuration of the opening / closing detection means is not limited to this. That is, as long as the features and functions of the present invention can be realized, the present invention is not limited to the vehicle ventilation device of the embodiment.

The side view which shows the principal part structure of the vehicle with which this invention is applied. The figure which shows the structure of the cooling device used for the ventilation apparatus which concerns on this Embodiment. The block diagram which shows the structure of the ventilation apparatus which concerns on this Embodiment. The flowchart (the 1) which shows an example of the process in the controller which concerns on 1st Embodiment. The flowchart (the 2) which shows an example of the process in the controller which concerns on 1st Embodiment. The figure which shows the operation map of the cooling fan of FIG. The vehicle side view which shows the ventilation state before the opening of a door after the start of ventilation driving | operation. The vehicle side view which shows the ventilation state after the opening of a door after the start of ventilation driving | operation. The vehicle top view which shows the ventilation state before the opening of a door after the start of ventilation driving | operation. The vehicle top view which shows the ventilation state after the opening of a door after the start of ventilation driving | operation. The flowchart which shows an example of the process in the controller which concerns on 2nd Embodiment.

Explanation of symbols

2 Battery 3 Battery chamber 5 Cooling fan 12 Inside / outside air switching door 30 Controller 31 Inside temperature sensor 32 Outside temperature sensor 33 Lock release sensor 34 Opening / closing detection sensor 36 Cooling drive motor 37 Inside / outside air switching door drive actuator

Claims (5)

A cooling fan for discharging the air in the vehicle compartment to the outside of the vehicle compartment through a battery chamber in which a battery for driving the electric motor is disposed;
Boarding intention detection means for detecting a passenger's boarding intention,
A vehicle ventilation apparatus comprising: control means for operating the cooling fan when a boarding intention is detected by the boarding intention detection means. The vehicle ventilation device according to claim 1,
Vehicle temperature detection means for detecting the vehicle temperature;
An outside air temperature detecting means for detecting the outside air temperature;
The control means determines whether or not the cooling fan needs to be operated according to the detected vehicle interior temperature and outside air temperature, and determines that the boarding intention detection means detects a boarding intention and the cooling fan needs to be operated. If it does, the said vehicle will operate the cooling fan. The vehicle ventilation device according to claim 1 or 2,
An air conditioner for air-conditioning a vehicle interior, comprising an air conditioner having switching means that can be switched between an inside air circulation mode for circulating inside air and an outside air introduction mode for introducing outside air,
The vehicle ventilator characterized in that the control means switches the switching means to an inside air circulation mode at least when the cooling fan is in operation. The vehicle ventilation device according to claim 3,
It further comprises an opening / closing detection means for detecting opening / closing of the door,
The vehicle ventilator characterized in that the control means detects the opening of the door by the open / close detection means during operation of the cooling fan, and then stops the operation of the cooling fan when the closing of the door is detected. The vehicle ventilation device according to claim 3,
It further comprises an opening / closing detection means for detecting opening / closing of the door,
The vehicle ventilator characterized in that the control means switches the switching means to an outside air introduction mode when the opening / closing detection means detects the opening of the door when the cooling fan is in operation, and then detects the closing of the door. .

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