JP5217749B2 - Vehicle battery cooling system - Google Patents

Description

  The present invention relates to a vehicle battery cooling system including an air conditioner.

  Regarding cooling of a battery mounted on a vehicle, a technique for cooling the battery using air in an air-conditioned vehicle interior space has been proposed. When this technology is adopted, an air flow is formed by driving the battery fan, so that air in the vehicle interior space is discharged outside the vehicle through the battery housing portion, thereby allowing the battery to be cooled and gas from the battery to be discharged. If generated, the gas can be discharged outside the vehicle.

  However, outside air cannot be introduced through the air conditioner when the air conditioner is set to the inside air circulation mode. Therefore, there is a problem that the amount of outside air equivalent to the amount of exhaust from the battery fan enters the vehicle interior space from the gap of the vehicle body and the like without passing through the air conditioner, thereby reducing the air conditioning efficiency.

  In view of such a problem, the technique of Patent Document 1 forcibly sets the air conditioner when the battery needs to be cooled, such as when the battery is over a predetermined temperature or when gas is generated from the battery. By switching to the outside air introduction mode and controlling to maximize the amount of outside air introduced into the air conditioner by the blower, the outside air is actively introduced through the air conditioner.

Japanese Patent Laid-Open No. 10-284136

  However, even when the technique of Patent Document 1 is used, if the exhaust amount by the battery fan exceeds the outside air introduction amount by the blower of the air conditioner, the outside air enters the vehicle interior space without passing through the air conditioner. It may cause a decrease in efficiency.

  Therefore, a basic object of the present invention is to provide a vehicle battery cooling system capable of efficiently cooling a battery while maintaining good air conditioning efficiency.

In order to solve the above-mentioned problem, a battery cooling system for a vehicle according to a first invention of the present application includes:
Battery,
A battery housing section for housing the battery;
An air introduction part for communicating the space in the battery housing part and the vehicle interior space;
An air discharge portion that communicates the space inside the battery housing portion and the space outside the vehicle;
A battery fan that introduces air from the vehicle interior space into the battery housing portion through the air introduction portion, and exhausts air from the battery housing portion to the outside of the vehicle through the air discharge portion;
Battery temperature detecting means for detecting the temperature of the battery;
An air conditioner for air conditioning the vehicle interior space;
A blower provided in the air conditioner for introducing air into the air conditioner;
Air that is provided in the air conditioner and switches the setting of the air conditioner between an outside air introduction mode that introduces air in the outside space into the air conditioner and an inside air circulation mode that introduces air in the vehicle interior space into the air conditioner. Introduction mode switching means;
Control means for controlling the operation of the air conditioner and the operation of the battery fan;
A battery cooling system for a vehicle , comprising: gas detection means for detecting the presence or absence of gas generation from the battery ,
The control means includes
When operating the battery fan in a state where the air conditioner is operating, performing a predetermined battery cooling control while controlling the air introduction mode switching means so that the outside air introduction mode is selected,
The battery cooling control is
When it is detected that the temperature detected by the battery temperature detecting means is equal to or lower than a predetermined temperature and no gas is generated by the gas detecting means, the exhaust amount by the battery fan is set in the air conditioner. Controlling the operation of the battery fan so as to be equal to or less than a reference amount consisting of an amount equal to an air amount or an amount obtained by calculating the set air amount;
When the temperature detected by the battery temperature detection means is higher than a predetermined temperature and / or when it is detected that gas is generated by the gas detection means, the exhaust amount by the battery fan is larger than the reference amount. The operation of the battery fan is controlled so as to increase.

A battery cooling system for a vehicle according to a second invention of the present application is:
Battery,
A battery housing section for housing the battery;
An air introduction part for communicating the space in the battery housing part and the vehicle interior space;
An air discharge portion that communicates the space inside the battery housing portion and the space outside the vehicle;
A battery fan that introduces air from the vehicle interior space into the battery housing portion through the air introduction portion, and exhausts air from the battery housing portion to the outside of the vehicle through the air discharge portion;
Battery temperature detecting means for detecting the temperature of the battery;
An air conditioner for air conditioning the vehicle interior space;
A blower provided in the air conditioner for introducing air into the air conditioner;
Air that is provided in the air conditioner and switches the setting of the air conditioner between an outside air introduction mode that introduces air in the outside space into the air conditioner and an inside air circulation mode that introduces air in the vehicle interior space into the air conditioner. Introduction mode switching means;
Control means for controlling the operation of the air conditioner and the operation of the battery fan,
The control means controls the operation of the battery fan so that the amount of exhaust by the battery fan becomes an amount corresponding to the temperature of the battery when the temperature detected by the battery temperature detection means is higher than a predetermined temperature. A vehicle battery cooling system,
The vehicle includes a blowout port that blows conditioned air toward the passenger, and a blowout port that is different from the blowout port,
The control means includes
When the battery fan is operated in a state where the air conditioner is operated, the air introduction mode switching unit is controlled so that the outside air introduction mode is selected, and an exhaust amount by the battery fan is a set air volume of the air conditioner. The amount of outside air introduced by the blower is increased to a larger amount than the set amount of air, and the amount of outside air introduced by the blower is increased. The air conditioner is controlled such that an increased amount of conditioned air is blown out from the other outlet .

A vehicle battery cooling system according to a third invention of the present application is :
Battery,
A battery housing section for housing the battery;
An air introduction part for communicating the space in the battery housing part and the vehicle interior space;
An air discharge portion that communicates the space inside the battery housing portion and the space outside the vehicle;
A battery fan that introduces air from the vehicle interior space into the battery housing portion through the air introduction portion, and exhausts air from the battery housing portion to the outside of the vehicle through the air discharge portion;
Battery temperature detecting means for detecting the temperature of the battery;
An air conditioner for air conditioning the vehicle interior space;
A blower provided in the air conditioner for introducing air into the air conditioner;
Air that is provided in the air conditioner and switches the setting of the air conditioner between an outside air introduction mode that introduces air in the outside space into the air conditioner and an inside air circulation mode that introduces air in the vehicle interior space into the air conditioner. Introduction mode switching means;
Control means for controlling the operation of the air conditioner and the operation of the battery fan,
The control means controls the operation of the battery fan so that the amount of exhaust by the battery fan becomes an amount corresponding to the temperature of the battery when the temperature detected by the battery temperature detection means is higher than a predetermined temperature. A vehicle battery cooling system,
The vehicle includes a driver's seat side outlet provided on the driver's seat side in the passenger compartment, a passenger's side outlet provided on the passenger's seat side in the passenger compartment, and an assistant for detecting the presence or absence of a passenger in the passenger seat. Seat occupant detection means,
The control means includes
When the battery fan is operated in a state where the air conditioner is operated, the air introduction mode switching unit is controlled so that the outside air introduction mode is selected, and an exhaust amount by the battery fan is a set air volume of the air conditioner. The amount of outside air introduced by the blower is increased to an amount larger than the set air volume, and the passenger seat occupant detecting means detects the passenger seat. When it is detected that there is no occupant, the air conditioner is controlled such that the increased amount of the outside air introduction amount by the blower is blown out from the front passenger side outlet.

A battery cooling system for a vehicle according to a fourth invention of the present application is :
Battery,
A battery housing section for housing the battery;
An air introduction part for communicating the space in the battery housing part and the vehicle interior space;
An air discharge portion that communicates the space inside the battery housing portion and the space outside the vehicle;
A battery fan that introduces air from the vehicle interior space into the battery housing portion through the air introduction portion, and exhausts air from the battery housing portion to the outside of the vehicle through the air discharge portion;
Battery temperature detecting means for detecting the temperature of the battery;
An air conditioner for air conditioning the vehicle interior space;
A blower provided in the air conditioner for introducing air into the air conditioner;
Air that is provided in the air conditioner and switches the setting of the air conditioner between an outside air introduction mode that introduces air in the outside space into the air conditioner and an inside air circulation mode that introduces air in the vehicle interior space into the air conditioner. Introduction mode switching means;
Control means for controlling the operation of the air conditioner and the operation of the battery fan,
The control means controls the operation of the battery fan so that the amount of exhaust by the battery fan becomes an amount corresponding to the temperature of the battery when the temperature detected by the battery temperature detection means is higher than a predetermined temperature. A vehicle battery cooling system,
The vehicle detects a front seat outlet provided on the front seat side of the passenger compartment, a rear outlet outlet provided on the rear seat side of the passenger compartment, and the presence or absence of a passenger in the rear seat. Seat occupant detection means,
The control means includes
When the battery fan is operated in a state where the air conditioner is operated, the air introduction mode switching unit is controlled so that the outside air introduction mode is selected, and an exhaust amount by the battery fan is a set air volume of the air conditioner. The air volume introduced by the blower is increased to an amount larger than the set air volume, and the rear seat occupant detection means When it is detected that no occupant is present, the air conditioner is controlled so that the increased amount of the conditioned air by the blower is blown from the rear seat outlet.

A vehicle battery cooling system according to a fifth invention of the present application is :
Battery,
A battery housing section for housing the battery;
An air introduction part for communicating the space in the battery housing part and the vehicle interior space;
An air discharge portion that communicates the space inside the battery housing portion and the space outside the vehicle;
A battery fan that introduces air from the vehicle interior space into the battery housing portion through the air introduction portion, and exhausts air from the battery housing portion to the outside of the vehicle through the air discharge portion;
Battery temperature detecting means for detecting the temperature of the battery;
An air conditioner for air conditioning the vehicle interior space;
A blower provided in the air conditioner for introducing air into the air conditioner;
Air that is provided in the air conditioner and switches the setting of the air conditioner between an outside air introduction mode that introduces air in the outside space into the air conditioner and an inside air circulation mode that introduces air in the vehicle interior space into the air conditioner. Introduction mode switching means;
A battery cooling system for a vehicle, comprising: control means for controlling the operation of the air conditioner and the operation of the battery fan;
The vehicle has an outside air introduction part that communicates a space inside the battery housing part and a space outside the vehicle in order to introduce outside air directly into the battery accommodation part without passing through a vehicle interior space, and the outside through the outside air introduction part. An introduction amount adjusting means for adjusting an introduction amount of outside air introduced from the space into the battery housing portion;
The control means includes
When operating the battery fan in a state where the air conditioner is operating, performing a predetermined battery cooling control while controlling the air introduction mode switching means so that the outside air introduction mode is selected,
The battery cooling control is
When the temperature detected by the battery temperature detection means is equal to or lower than a predetermined temperature, the reference air amount is the same as the set air volume of the air conditioner or the amount obtained by calculating the set air volume. Control the operation of the battery fan so that
When the temperature detected by the battery temperature detection means is higher than a predetermined temperature, the operation of the battery fan is controlled so that the exhaust amount by the battery fan is larger than the reference amount,
In the battery cooling control, when the battery fan is driven so that an exhaust amount by the battery fan is larger than the reference amount in the battery cooling control, the same amount of outside air as the difference between the exhaust amount and the reference amount is generated. The introduction amount adjusting means is controlled so as to be introduced into the battery housing part through the outside air introduction part.

A vehicle battery cooling system according to a sixth invention of the present application is:
Battery,
A battery housing section for housing the battery;
An air introduction part for communicating the space in the battery housing part and the vehicle interior space;
An air discharge portion that communicates the space inside the battery housing portion and the space outside the vehicle;
A battery fan that introduces air from the vehicle interior space into the battery housing portion through the air introduction portion, and exhausts air from the battery housing portion to the outside of the vehicle through the air discharge portion;
Battery temperature detecting means for detecting the temperature of the battery;
An air conditioner for air conditioning the vehicle interior space;
A blower provided in the air conditioner for introducing air into the air conditioner;
Air that is provided in the air conditioner and switches the setting of the air conditioner between an outside air introduction mode that introduces air in the outside space into the air conditioner and an inside air circulation mode that introduces air in the vehicle interior space into the air conditioner. Introduction mode switching means;
Control means for controlling the operation of the air conditioner and the operation of the battery fan,
The control means controls the operation of the battery fan so that the amount of exhaust by the battery fan becomes an amount corresponding to the temperature of the battery when the temperature detected by the battery temperature detection means is higher than a predetermined temperature. A vehicle battery cooling system,
The vehicle has an outside air introduction part that communicates a space inside the battery housing part and a space outside the vehicle in order to introduce outside air directly into the battery accommodation part without passing through a vehicle interior space, and the outside through the outside air introduction part. An introduction amount adjusting means for adjusting an introduction amount of outside air introduced from the space into the battery housing portion;
The control means includes
When operating the battery fan in a state where the air conditioner is operating, the air introduction mode switching means is controlled so that the outside air introduction mode is selected, and the amount of exhaust by the battery fan is the same amount as the set air volume Alternatively, when the air volume becomes larger than a reference amount that is obtained by calculating the set air volume, the same amount of outside air as the difference between the exhaust amount and the reference amount is introduced into the battery housing portion through the outside air introducing portion. In addition, the introduction amount adjusting means is controlled.

According to the first invention of the present application, when the battery temperature is higher than a predetermined temperature or when toxic gas such as carbon monoxide (CO) is generated from the battery, the battery fan is operated with a large air flow, The battery can be reliably and quickly cooled, and the gas generated from the battery can be reliably and quickly discharged. On the other hand, when the battery temperature is lower than the predetermined temperature and no gas is generated from the battery, the battery fan is operated with the air volume below the reference amount so that the exhaust amount by the battery fan is greater than the outside air introduction amount of the air conditioner. Can be prevented, and the battery can be efficiently cooled using the air-conditioned air while preventing a decrease in air-conditioning efficiency due to the intrusion of outside air that does not pass through the air-conditioning apparatus .

According to the second invention of the present application, when the battery fan is operated with the air volume corresponding to the battery temperature when the battery temperature is higher than the predetermined temperature, the air conditioning is performed when the exhaust amount by the battery fan becomes larger than the reference value. By increasing the outside air introduction amount of the apparatus to a larger amount than the set air amount, the air conditioning efficiency can be maintained satisfactorily.

In addition, according to the second aspect of the invention, when increasing the outside air introduction amount of air conditioning apparatus, the amount of increase in the conditioned air of the outside air introduction amount is different from the outlet blowing out conditioned air toward the passenger Since the air is blown out from the outlet, the air-conditioning airflow hitting the occupant does not increase, and it is possible to prevent the occupant from feeling uncomfortable or uncomfortable.

According to a third aspect of the present invention, when increasing the outside air introduction amount of air conditioning apparatus, when the passenger seat there are no passengers, the outside air introduction amount of the amount of increase in the conditioned air is blown out from the passenger's seat side outlet Therefore, the amount of air-conditioning wind that strikes the occupant does not increase, and it is possible to prevent the occupant from feeling uncomfortable or uncomfortable.

According to a fourth aspect of the present invention, when increasing the outside air introduction amount of air conditioning apparatus, when the rear seat there are no passengers, the outside air introduction amount of the amount of increase in the conditioned air is blown from the rear seat outlet Therefore, the amount of air-conditioning wind that strikes the occupant does not increase, and it is possible to prevent the occupant from feeling uncomfortable or uncomfortable.

According to a fifth aspect of the present invention, when the exhaust amount of the first invention and the same battery-cooling control by the battery fan is larger than the reference amount, the same amount as the difference between their emissions and the reference amount Because the outside air is directly introduced into the battery compartment without going through the vehicle interior space, it is possible to prevent the outside air from entering the vehicle interior space without going through the air conditioner, thereby maintaining good air conditioning efficiency. it can. In addition, since it is not necessary to increase the amount of outside air introduced into the air conditioner, air conditioning can be performed with an air volume that matches the set air volume.

According to the sixth invention of the present application, when the battery fan is operated with the air volume according to the battery temperature when the battery temperature is higher than the predetermined temperature, when the exhaust amount of the battery fan becomes larger than the reference amount, Since the same amount of outside air as the difference between the exhaust amount and the reference amount is directly introduced into the battery housing portion without passing through the vehicle interior space, the air conditioning efficiency can be maintained well as in the fifth aspect of the invention. . In addition, as in the fifth aspect , air conditioning can be performed with an air volume that matches the set air volume.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, the same reference numerals are used for the same or similar components.

[First Embodiment]
FIG. 1 schematically shows an automobile 2 equipped with a battery cooling system according to the present invention. The automobile 2 is a so-called hybrid electric vehicle (HEV) that includes an engine and an electric motor (not shown) as drive sources, and uses the engine and the electric motor by switching or running together. However, the present invention is equally applicable to vehicles other than hybrid vehicles.

  As shown in FIG. 1, in the present embodiment, the battery 40 is accommodated in a battery case 42 disposed below the rear seat 12 in the vehicle interior space 6 surrounded by the body panel 4. The battery 40 is used as a drive source for the above-described electric motor, for example. An internal air introduction duct 44 as an air introduction portion is connected to or integrated with the front portion of the battery case 42, and the space inside the battery case 42 and the vehicle interior space 6 are connected via the internal air introduction duct 44. And communicate with each other. An exhaust duct 46 serving as an air discharge unit is connected to or integrated with a rear portion of the battery case 42. The exhaust duct 46 is provided so as to penetrate the body panel 4, and the space inside the battery case 42 and the outside space 8 outside the body panel 4 communicate with each other via the exhaust duct 46. For example, a battery fan 48 is provided at an intermediate portion of the exhaust duct 46. When the battery fan 48 is activated, an air flow is formed from the vehicle interior space 6 through the space in the battery case 42 to the vehicle exterior space 8. Thereby, since the air in the vehicle interior space 6 is introduced into the battery case 42 through the internal air introduction duct 44, the battery 40 can be cooled using the air in the air conditioned vehicle interior space 6. The air in the battery case 42 used for cooling the battery 40 and / or the gas in the battery case 42 generated from the battery 40 can be discharged to the vehicle exterior space 8 through the exhaust duct 46. For example, a gas sensor 50 that detects the presence or absence of gas generation from the battery 40 and a battery temperature sensor 52 that detects the temperature of the battery are attached to, for example, a side surface of the battery 40.

  In the present invention, the arrangement of the battery 40 is not particularly limited, and the battery 40 can be installed at any position where the air in the vehicle interior space 6 can be introduced into the battery case 42.

  An indoor temperature sensor 32 that detects the temperature of the air in the vehicle interior space 6 is provided at a predetermined location in the vehicle interior space 6. In addition, an outside air temperature sensor 34 that detects the temperature of the air in the outside space 8 is provided at a predetermined location in the outside space 8.

  An air conditioner 20 that air-conditions the vehicle interior space 6 is provided, for example, at the front of the automobile 2. The air conditioner 20 can be switched between an outside air introduction mode for introducing the air in the outside space 8 into the air conditioner 20 and an inside air circulation mode for introducing the air in the vehicle interior space 6 into the air conditioner 20.

  The air conditioner 20 includes an outside air introduction port 22 for introducing outside air during the outside air introduction mode, and an inside air introduction port 24 for introducing the air in the vehicle interior space 6 during the inside air circulation mode. In addition to the outside air inlet 22 and the inside air inlet 24 illustrated in FIG. 1, the air conditioner 20 includes an outside air inlet 120 and an inside air inlet 124 for rear air conditioning described later.

  The air conditioner 20 includes a plurality of outlets 26, 28, and 30 for blowing out air that has been cooled or heated in the air conditioner 20. Specifically, the air conditioner 20 is a vent for blowing air from, for example, an unillustrated instrument panel toward the upper body of the occupant of the front seat 10 as a front seat side outlet provided on the front seat side in the passenger compartment. A blowout port 26, a heat blowout port 28 for blowing out air toward the feet of the passenger in the front seat 10, and a defroster blowout port 30 for blowing out air along the glass surface from the lower side of the front glass upward. And. In addition to the air outlets 26, 28, and 30 shown in FIG. 1, the air conditioner 20 includes a rear vent air outlet 62 (see FIG. 3) for blowing air toward the upper body of the passenger in the rear seat 12. A rear heat outlet 64 (see FIG. 2) for blowing out air toward the feet of the passengers in the rear seat 12 is provided.

  A more specific configuration of the air conditioner 20 will be described with reference to FIGS. 2 and 3. 2 shows components of front air conditioning of the air conditioner 20 (air conditioning that blows conditioned air from a blowout port other than a rear vent outlet 62 described later), and FIG. 3 shows rear air conditioning (rear vent vent outlet described later) of the air conditioner 20. The component of the air conditioning which blows an air-conditioning wind from 62) is shown.

  As shown in FIG. 2, the air conditioner 20 includes a main duct portion 70 in which an outside air introduction port 22 and an inside air introduction port 24 are formed. From the main duct portion 70, a vent duct portion 72, a heat duct portion 74, and a defroster The duct portion 76 is branched.

  The outside air introduction port 22 and the inside air introduction port 24 are provided adjacent to each other at one end (the left end in the drawing) of the main duct portion 70 and are selectively blocked by the inside / outside air switching damper 80. In a state where the outside air introduction port 22 is blocked by the inside / outside air switching damper 80, air is introduced from the inside air introduction port 24 into the main duct portion 70, and in a state where the inside / outside air switching damper 80 blocks the inside air introduction port 24. Air is introduced from the outside air inlet 22 into the main duct portion 70. That is, the inside / outside air switching damper 80 functions as an air introduction mode switching unit that switches the setting of the air conditioner 20 between the outside air introduction mode and the inside air circulation mode.

  Inside the main duct portion 70, a front blower 90 that introduces air into the main duct portion 70 is provided in the vicinity of the outside air introduction port 22 and the inside air introduction port 24. When the front blower 90 is activated, air is introduced into the main duct portion 70 from the outside air introduction port 22 or the inside air introduction port 24 and flows from one end (left end in the drawing) to the other end (right end in the drawing). Air-conditioned wind is generated.

  An evaporator 92 that cools the conditioned air is provided downstream of the front blower 90 in the flow direction of the conditioned air, and a heater core 94 that heats the conditioned air is provided in the mixing chamber 100 downstream of the evaporator 92. Yes. A mixing damper 96 that opens and closes the front surface (heating surface) of the heater core 94 is provided in front of the heater core 94. When the front surface of the heater core 94 is blocked by the mixing damper 96 as shown by the solid line in the drawing, the conditioned air in the main duct portion 70 passes through the mixing chamber 100 without being heated by the heater core 94. On the other hand, when the mixing damper 96 is opened as shown by a chain line in the drawing, that is, when the front surface of the heater core 94 is opened, the conditioned air in the main duct portion 70 is heated by the heater core 94 to cause the mixing chamber 100 to enter the mixing chamber 100. pass.

  The vent duct portion 72 has a first vent duct portion 72a led to the driver seat side outlet disposed on the driver seat side and a second vent duct portion 72a led to the passenger seat side outlet disposed on the passenger seat side. It branches off to the vent duct portion 72b. Specifically, a vent outlet 26a on the driver's seat side is provided at an intermediate portion and a front end of the first vent duct portion 72a, and a vent blow on the passenger seat side is provided at an intermediate portion and a front end of the second vent duct portion 78b. A mouth 26b is provided. At the base ends of the first and second vent duct portions 72a and 72b, vent dampers 82a and 82b capable of opening and closing the vent duct portions 72a and 72b are provided, respectively, and depending on the opening degree of the vent dampers 82a and 82b, The flow rate of the conditioned air flowing from the mixing chamber 100 into the vent duct portions 72a and 72b, that is, the amount of air blown out from the vent outlets 26a and 26b is adjusted.

  Similarly, the heat duct portion 74 is branched into a first heat duct portion 74a guided to the driver seat side outlet and a second heat duct portion 74b guided to the passenger seat side outlet. Specifically, a driver's seat side heat outlet 28a is provided in the middle of the first heat duct portion 74a. Furthermore, a rear heat outlet 64a for the rear seat of the driver seat is provided at the tip of the first heat duct portion 74b. Similarly, a passenger seat side heat outlet 28b is provided in the middle of the second heat duct portion 74b, and a rear heat outlet 64b in the rear seat of the passenger seat is provided at the tip of the second heat duct 74b. ing. At the base ends of the first and second heat duct portions 74a and 74b, heat dampers 84a and 84b capable of opening and closing the heat duct portions 74a and 74b are provided, respectively, and depending on the opening degree of the heat dampers 84a and 84b, The flow rate of the conditioned air flowing from the mixing chamber 100 into the heat duct portions 74a and 74b, that is, the amount of air blown from the heat blowout ports 28a and 28b and the rear heat blowout ports 64a and 64b is adjusted.

  Further, the defroster duct portion 76 is also branched into a first defroster duct portion 76a led to the driver seat side outlet and a second defroster duct portion 76b led to the passenger seat side outlet. Specifically, a driver seat side defroster outlet 26a is provided at an intermediate portion and a tip of the first defroster duct portion 76a, and a passenger seat side defroster outlet 26b is provided at an intermediate portion and a tip of the second defroster duct portion 76b. Is provided. Defroster dampers 86a and 86b capable of opening and closing the defroster duct portions 76a and 76b are provided at the base ends of the first and second defroster duct portions 76a and 76b, respectively, and depending on the opening degree of the defroster dampers 86a and 86b. The flow rate of the conditioned air flowing from the mixing chamber 100 into the defroster ducts 76a and 76b, that is, the amount of air blown from the defroster outlets 26a and 26b is adjusted.

  As shown in FIG. 3, the air conditioner 20 has a rear vent duct portion 178. An outside air introduction port 120 and an inside air introduction port 124 are provided adjacent to each other at one end (the left end in the figure) of the rear vent duct portion 178, and are selectively selected by an inside / outside air switching damper 180 as air introduction mode switching means. It is supposed to be blocked. When the outside air introduction port 120 is blocked by the inside / outside air switching damper 180, air is introduced from the inside air introduction port 124 to the rear vent duct portion 178, and the inside / outside air switching damper 180 blocks the inside air introduction port 124. , Air is introduced from the outside air inlet 120 into the rear vent duct portion 178. On the other hand, a rear vent outlet 62 is provided at the other end (the lower right end in the figure) of the rear vent duct portion 178.

  A rear blower 98 for introducing air into the rear vent duct portion 178 is provided in the vicinity of the outside air inlet 120 and the inside air inlet 124 inside the rear vent duct portion 178. When the rear blower 98 is actuated, air is introduced into the rear vent duct portion 178 from the outside air introduction port 120 or the inside air introduction port 124, and from one end (left end in the drawing) to the other end (right end in the drawing) of the rear vent duct portion 178. Flowing conditioned air is generated. An evaporator 192 for cooling the conditioned air is provided on the downstream side of the rear blower 98 in the flow direction of the conditioned air. The flow rate of the conditioned air flowing through the rear vent duct portion 178, that is, the amount of air blown from the rear vent outlet 62 can be adjusted by the rotational speed of the rear blower 98.

  FIG. 4 is a block diagram showing a configuration for controlling the operations of the air conditioner 20 and the battery fan 48. As shown in FIG. 4, the control means for controlling the operation of the air conditioner 20 and the battery fan 48 includes an air conditioning control unit 102 that controls the operation of the air conditioner 20, and a battery fan control unit 104 that controls the operation of the battery fan 48. And have.

  The air conditioning control unit 102 includes an outside air temperature sensor 34, an indoor temperature sensor 32, a temperature setting operation unit 106 operated by the occupant to set the vehicle interior temperature, an air conditioning switch 108 for the occupant to operate the air conditioner 20, an assistant A passenger seat occupant detection sensor 110 that detects the presence or absence of a seat occupant and a rear seat occupant detection sensor 112 that detects the presence or absence of a rear seat occupant are electrically connected. These sensors 32, 34, 106, etc. Signals sent from 108, 110, and 112 are received by the air conditioning control unit 102.

  The air conditioning controller 102 also drives a motor 81 for driving the inside / outside air switching damper 80, a motor 97 for driving the mixing damper 96, a motor 83 for driving the vent damper 82, a motor 85 for driving the heat damper 84, and a defroster damper 86. And a motor 89 for driving the rear vent damper 88 are electrically connected, and each of the motors 81, 83, 85, 87, 89, 91, 97 is controlled by a control signal sent from the air conditioning control unit 102. In other words, the operation of the dampers 80, 82, 84, 86, 88, 90, 96 driven by these motors is controlled.

  Further, a blower motor 91 that drives the front blower 90 and a blower motor 99 that drives the rear blower 98 are electrically connected to the air conditioning control unit 102, and the blower motor 91, 99, that is, the operations of the blowers 90 and 98 driven by these motors 91 and 99 are controlled. Except when battery cooling control described later is performed, the front blower 90 is driven so as to introduce the same amount of air as the set air volume Vfset of the front air conditioning, and the rear blower 98 is the same amount of air as the set air volume Vrset of the rear air conditioning. Driven to introduce. In the following description, an air volume obtained by adding a set air volume Vrset for rear air conditioning to a set air volume Vfset for front air conditioning is referred to as a set air volume Vset for the air conditioner 20.

A battery temperature sensor 52 and a gas sensor 50 are electrically connected to the battery fan control unit 104, and signals sent from these sensors 50 and 52 are received by the battery fan control unit 104. In addition, a motor 49 for driving the battery fan 48 is electrically connected to the battery fan control unit 104, and the driving of the motor 49, that is, the operation of the battery fan 48 is controlled by a control signal sent from the battery fan control unit 104. Is controlled. The operation of the battery fan 48 is controlled according to the battery temperature T _BAT . The air volume of the battery fan 48 can be controlled within a predetermined range, the minimum air volume of the battery fan 48 is V _BAT2 , and the maximum air volume is V _BAT1 . The maximum air volume V _BAT1 of the battery fan 48 is an air volume that can sufficiently cool, for example, the battery 40 that has risen to 40 ° C., and is larger than the maximum air volume Vset that is set by the air conditioner 20. The battery fan 48 is controlled so as to be driven with a predetermined air volume according to the battery temperature T _BAT in principle, but is controlled in a different manner under a predetermined condition as will be described later.

In the battery fan control unit 104, for example, a predetermined map related to the relationship between the battery temperature T _BAT and the air volume V _BAT of the battery fan 48 as shown in FIG. When the driving battery fan 48 is controlled in accordance with the map shown in FIG. 8, the battery temperature _{T BAT} is when higher than the first temperature _{T BAT1} a battery fan 48 is driven at the maximum air volume _{V BAT1,} battery temperature When T _BAT is in a range higher than the second temperature T _{BAT2 and} lower than the first temperature T _BAT1 , the air volume V _BAT increases as the battery temperature increases (minimum air volume V _BAT2 to maximum air volume V _BAT1 ). When the battery fan 48 is driven and the battery temperature T _BAT is _{equal to} or lower than the second temperature T _BAT2 , the battery fan 48 is not driven.

  The air conditioning control unit 102 and the battery fan control unit 104 are electrically connected, and signals can be transmitted and received between the air conditioning control unit 102 and the battery fan control unit 104.

  A specific example of control using such a control system will be described with reference to FIGS.

<Battery fan control>
First, the flow of processing for controlling the battery fan 48 performed by the battery fan control unit 104 will be described with reference to FIG.

As shown in FIG. 5, first, in step S11 to step S13, the temperature T _BAT detected by the battery temperature sensor 52, the presence or absence of gas generation detected by the gas sensor 50, and the air conditioner transmitted from the air conditioning control unit 102 Information on the set air volume Vset of 20 is read.

In a succeeding step S14, it is determined whether or not gas is generated from the battery 40 based on the information read in the step S12. If it is determined in step S14 that no gas is generated, the process proceeds to step S15. If it is determined that gas is generated, the process proceeds to step S19, and the battery fan 48 is driven at the maximum air volume V _BAT1 as described later. Is done.

  However, in the present invention, the processing relating to gas generation detection (the processing in step S12 and step S14) can be omitted.

In step S15, it is determined whether or not the battery temperature T _BAT read in step S11 is higher than a preset first temperature T _BAT1 . The first temperature T _BAT1 is a lower limit value of the temperature of the battery 40 that needs to drive the battery fan 48 with the maximum air volume V _BAT1 in order to cool the battery 40, and is specifically set to 40 ° C., for example. .

If it is determined in step S15 that the battery temperature T _BAT is _{equal to} or lower than the first temperature T _BAT1 , the process proceeds to step S16, and if it is determined that the battery temperature T _BAT is higher than the first temperature T _{BAT1, the process} proceeds to step S19. _Then , as will be described later, the battery fan 48 is driven with the maximum air volume V _BAT1 .

In step S16, it is determined whether or not the battery temperature T _BAT read in step S11 is higher than a preset second temperature T _BAT2 . The second temperature T _BAT2 is an upper limit value of the temperature of the battery 40 that does not require cooling, and is specifically set to 35 ° C., for example.

If it is determined in step S16 that the battery temperature T _BAT is _{equal to} or lower than the second temperature T _BAT2, it is not necessary to cool the battery 40, so the process proceeds to step S20 and the battery fan 48 is stopped. On the other hand, if it is determined in step S16 that the battery temperature T _BAT is higher than the second temperature T _BAT2 , the process proceeds to step S17.

In step S17, based on the signal sent from the air conditioning control unit 102, it is determined whether or not the air conditioner 20 is turned on. If it is determined in step S17 that the air conditioner 20 is turned on, the process proceeds to step S18. If it is determined that the air conditioner 20 is turned off, the process proceeds to step S21, for example, on the map shown in FIG. Based on this, the battery fan 48 is driven with an air volume corresponding to the battery temperature T _BAT .

  In step S18, the battery fan 48 is driven with a reference amount Vtar that is the same amount as the set air volume Vset of the air conditioner 20. That is, the exhaust amount by the battery fan 48 is the same as the set air volume Vset. By the way, when the process of step S18 is performed, since the battery fan 48 operates in a state where the air conditioner 20 is on, the air introduction mode of the air conditioner 20 is set to the outside air introduction mode by the control of the air conditioner 20 described later. Is done. In the outside air introduction mode, the same amount of outside air as the set air volume Vset is introduced into the vehicle interior space 6 through the air conditioner 20, so that the amount of outside air introduced by the air conditioner 20 and the amount of exhaust by the battery fan 48 become equal. Therefore, it is possible to prevent outside air from entering the vehicle interior space 6 from the gap of the vehicle body and the like without passing through the air conditioner 20, and air conditioning efficiency can be improved.

  In the present invention, the reference amount Vtar of the battery fan 48 is not necessarily the same amount as the set air volume Vset of the air conditioner 20, and when the air conditioner 20 is operating at the set air volume Vset, the outside air is air conditioner. What is necessary is just to set to the displacement which can prevent entering the vehicle interior space 6 without passing through 20. Specifically, the reference amount Vtar may be an amount obtained by performing a predetermined calculation on the set air volume Vset, such as an amount obtained by adding a predetermined value to the set air volume Vset. Further, in step S18, instead of the above processing (processing for setting the air volume of the battery fan 48 to the reference amount Vtar), processing for setting the air volume of the battery fan 48 to an amount smaller than the reference amount Vtar is performed. Also good.

In step S19, the battery fan 48 is driven with the maximum air volume _VBAT1 . As a result, the battery 40 can be reliably and quickly cooled, and when gas is generated from the battery 40, the gas can be reliably and quickly discharged to the outside of the vehicle. As described above, since the maximum air volume V _BAT1 of the battery fan 48 is larger than the maximum air volume Vset of the air conditioner 20, the exhaust amount of the battery fan 48 is set to the air volume of the air conditioner 20 by the process of step S19. It becomes larger than Vset. However, at this time, the blowers 90 and 98 are exceptionally controlled as will be described later (see FIG. 7), so that the outside air introduction amount Vc by the blowers 90 and 98 (the outside air introduction amount Vfc by the front blower 90 is added to the rear blower 98. Therefore, the outside air can be prevented from entering the vehicle interior space 6 without passing through the air conditioner 20 because the outside air introduction amount Vrc) is increased to be larger than the set air amount Vset.

<Control of air conditioner>
Next, a flow of control processing of the air conditioner 20 performed by the air conditioning control unit 102 will be described with reference to FIG. The control shown in FIG. 6 is executed when it is determined that the air conditioner 20 is turned on.

As shown in FIG. 6, first, in steps S31 to S36, various information is read. Specifically, the temperature Ta detected by the outside air temperature sensor 34 (step S31), the temperature Tr detected by the indoor temperature sensor 32 (step S32), and the temperature Tset set by the operation of the temperature setting operation unit 106 (step S33), the set air volume Vset calculated based on the outside air temperature Ta, the room temperature Tr, and the set temperature Tset or set by the occupant's operation (step S34), the passenger seat occupant detection sensor 110 and / or the rear seat occupant detection sensor The presence / absence of passengers in the front passenger seat and / or rear seat detected by step 112 (step S35) and the air volume V _BAT of the battery fan 48 controlled as described above (step S36) are read. However, in the first embodiment, the process of step S35 can be omitted.

  Subsequently, in steps S37 to S40, various calculations are performed. Specifically, the blowout temperature is calculated based on the set temperature Tset and the set air volume Vset (step S37), and the blower voltage applied to the blower motors 91 and 99 that drive the blowers 90 and 98 is controlled later (see FIG. 7). (Step S38), and the blowing mode (bent mode, heat mode, defroster mode, etc.) is calculated (step S39) by the control described later (see FIG. 9), and the information read by the passenger operation or step S36 The air introduction mode is calculated based on (whether the battery fan 48 is activated) (step S40).

  In step S40, when the battery fan 48 is operating, the outside air introduction mode is selected. Thereby, when the air conditioner 20 is operating, the above-described battery cooling control (the control in steps S18 and S19 in FIG. 5) is performed in a state where the air conditioner 20 is set to the outside air introduction mode. is there.

  In subsequent steps S41 to S45, various outputs are performed based on the results of the calculations in steps S37 to S40. Specifically, the driving of the evaporator 92 is controlled (step S41), the opening degree of the mixing damper 96 is adjusted (step S42), the driving of the blowers 90 and 98 is controlled (step S43), and the blowout amount is adjusted. The opening degree of each damper 82, 84, 86, 88 is adjusted (step S44), and the inside / outside air switching dampers 80, 180 are driven as necessary (step S45).

  When the outside air introduction mode is selected based on the operation information of the battery fan 48 in step S40, in step S45, the driving of the inside / outside air switching dampers 80 and 180 is controlled so as to be in the outside air introduction mode.

<Blower control>
Next, the flow of processing for controlling the blowers 90 and 98 of the air conditioner 20 (control in step S38 in FIG. 6) performed by the air conditioning control unit 102 will be described with reference to FIG.

As shown in FIG. 7, first, in step S51, the exhaust amount V _BAT by the battery fan 48 controlled as described above is converted into the reference amount Vtar (in this embodiment, the air conditioning read in step S34 in FIG. 6). It is determined whether or not it is larger than the set air volume Vset of the apparatus 20.

In step S51, the exhaust amount _{V BAT} by the battery fan 48 is determined to be greater than the reference amount Vtar, the process proceeds to step S52.

In step S52, the blower voltage is calculated so that the outside air introduction amount Vc by the blowers 90, 98 increases to a larger amount than the set air amount Vset, and the control flow returns to the control flow of the air conditioner 20 shown in FIG. Specifically, in step S52, the blower voltage is calculated so that the outside air introduction amount Vc becomes the same amount as the exhaust amount V _BAT by the battery fan 48. Thus, by controlling the outside air introduction amount Vc by the blowers 90 and 98 and the exhaust amount V _BAT by the battery fan 48 to be the same amount, the battery cooling control of step S19 in FIG. Even when the air volume V _BAT increases, it is possible to prevent outside air from entering the vehicle interior space 6 without passing through the air conditioner 20, and to maintain good air conditioning efficiency.

However, the process of step S52, the outside air introduction amount Vc, it is not always necessary to increase to be the same amount as the displacement volume V _BAT, so that the amount obtained by performing a predetermined operation on the exhaust amount V _BAT You may make it increase.

On the other hand, in step S51, if the exhaust amount _{V BAT} by the battery fan 48 is determined to be equal to or less than the reference amount Vtar, it is not necessary to perform correction to increase the outside air introduction amount Vc by the blower 90, 98. Therefore, the process proceeds to step S53, the blower voltage is calculated so that the outside air introduction amount Vc becomes the set air amount Vset, and the control returns to the control flow of the air conditioner 20 shown in FIG.

[Second Embodiment]
A second embodiment of the present invention will be described with reference to FIG. In the second embodiment, the air blower mode of the air conditioner 20 is controlled by the air conditioning controller 102 as will be described later, so that the conditioned air of the increase in the blower air volume Vc (Vc−Vset) accompanying the battery cooling control is occupant. You can avoid hitting directly. This will be specifically described below.

  In the control of the blowers 90 and 98 shown in FIG. 7 (the control of step S38 in FIG. 6), when the process of step S52 is performed, the outside air introduction amount (blower air amount) Vc by the blowers 90 and 98 increases as described above. However, at this time, in the second embodiment, control is performed so that only the outside air introduction amount (front blower air volume Vfc) by the front blower 90 increases.

  When the amount of air-conditioning air blown from each outlet 26, 28, 30, and 64 increases uniformly with the increase in the amount of outside air introduced Vc, the air-conditioning air with the increased amount of air blowing hits the occupant, causing the passenger to feel uncomfortable or uncomfortable. There are concerns to give. From this point of view, in the present embodiment, the blowout mode control is performed as follows so that the conditioned air of the increase in the blower air volume Vc (Vc−Vset) accompanying the battery cooling control does not directly hit the passenger. .

<Control of balloon mode>
With reference to FIG. 9, the flow of processing of the air blower mode control of the air conditioner 20 (control in step S <b> 39 in FIG. 6) will be described.

As shown in FIG. 9, first, in step S61, the set temperature Tset read in step S33 in FIG. 6, whether or not high is determined than the temperature T _C1, which is set in advance.

In step S61, the set temperature Tset is determined to be higher than the temperature T _C1, the process proceeds to step S65, heat mode (mode for blown from the air-conditioned air only heat outlet 28) is selected, in FIG. 6 Return to control flow.

On the other hand, when it is determined in step S61 that the set temperature Tset is equal to or lower than the temperature T _C1 , the process proceeds to step S62, and it is determined whether or not the set temperature Tset is higher than the preset temperature T _C2. . In step S62, the process proceeds to the the Step S66 determines that higher than the temperature _{T C2} set temperature Tset, the set temperature Tset is determined to be less than the temperature _{T C2} proceeds to step S63.

  In step S63, it is determined whether or not the blower air volume Vc is controlled to increase by the control of FIG. 7 (the process of step S38 of FIG. 6).

  If it is determined in step S63 that the blower air volume Vc does not increase, the process proceeds to step S69, where a normal vent mode (a mode in which the conditioned air is blown out only from the vent outlet 26) is selected, and the control flow of FIG. Return.

  On the other hand, if it is determined in step S63 that the blower air volume Vc increases, the process proceeds to step S64, the special vent mode is selected, and the process returns to the control flow of FIG. Here, the “special vent mode” means that the same amount of conditioned air as in the normal vent mode is blown out from the vent outlet 26 and the increased amount of blower air volume (Vc−Vset) is blown out from the defroster outlet 30. Refers to the mode to be activated. In step S64, since the special ventilation mode is selected, the conditioned air corresponding to the increase in the blower air volume (Vc−Vset) blows out from the defroster outlet 30, so the air volume of the conditioned air that hits the upper body of the occupant does not increase. This can prevent the user from feeling uncomfortable or uncomfortable.

However, in the special vent mode in step S64, the conditioned air corresponding to the increase in the blower air volume (Vc-Vset) is blown out from the defroster outlet 30, but a part of the increase in the blower air volume (Vc-Vset) or All the conditioned air may be blown out from the heat outlet 28.

  In step S66, as in step S63, it is determined whether or not the blower air volume Vc is controlled to increase by the control in FIG. 7 (the process in step S38 in FIG. 6).

  If it is determined in step S66 that the blower air volume Vc does not increase, the process proceeds to step S68, where the normal bi-level mode (mode in which the conditioned air is blown out from the vent outlet 26 and the heat outlet 28) is selected. Return to control flow 6.

  On the other hand, if it is determined in step S66 that the blower air volume Vc increases, the process proceeds to step S67, the special bi-level mode is selected, and the control flow returns to FIG. Here, the “special bi-level mode” means that the same amount of air-conditioning air as in the normal bi-level mode is blown out from the vent outlet 26 and the heat outlet 28, and the air-conditioning for the increase in the blower air volume (Vc−Vset). This refers to a mode in which wind is blown out from the defroster outlet 30. In step S67, when the special bi-level mode is selected, the conditioned air corresponding to the increase in the blower air volume (Vc-Vset) blows out from the defroster outlet 30. Therefore, the air conditioned air volume that hits the upper body and feet of the passenger increases. Therefore, it is possible to prevent the passenger from feeling uncomfortable or uncomfortable.

  However, in the special bi-level mode in step S67, the conditioned air corresponding to the increase in the blower air volume (Vc-Vset) is blown out from the defroster outlet 30, but a part of the increase in the blower air volume (Vc-Vset). Alternatively, all the conditioned air may be added to the conditioned air blown from the heat blow-out port 28. Even in this case, the air-conditioning wind that hits the upper body of the occupant does not increase, so that the discomfort and discomfort given to the occupant can be suppressed.

  Note that various modes other than the above-described modes (such as a mode in which the conditioned air is blown out only from the defroster outlet 30) can be considered as the blowing mode. Therefore, the control flow shown in FIG. You may make it add the process for selecting a mode suitably. In the second embodiment, other configurations are the same as those in the first embodiment.

[Third Embodiment]
A third embodiment of the present invention will be described with reference to FIG. In the third embodiment, when the blower air volume Vc increases with the battery cooling control, the configuration for preventing the conditioned air of the increased amount (Vc−Vset) of the blower air volume Vc from directly hitting the occupant is the second configuration. This is different from the embodiment.

  In the third embodiment, basically the same control as in the first and second embodiments is performed, but the process of calculating the blowing mode of the air conditioner 20 (the process in step S39 of the control in FIG. 6). The configuration is different from the first and second embodiments. In the third embodiment, when the blowing mode is selected based on the outside air temperature Ta, the room temperature Tr, and the set temperature Tset, and the vent mode is selected, the vent mode correction control shown in FIG. 10 is subsequently performed. .

<Bent mode correction control>
The flow of the vent mode correction control process will be described with reference to FIG.

  As shown in FIG. 10, first, in step S71, it is determined whether or not a blowing amount difference is set between the vent outlet 26a on the driver's seat side and the vent outlet 26b on the passenger seat side.

  If it is determined in step S71 that a difference in the amount of blowout is set between the vent blowout port 26a on the driver's seat and the vent blowout port 26b on the passenger seat side, the process proceeds to step S76 and the set blowout amount is set. The vent mode is corrected so that the opening degree of the vent dampers 82a and 82b is adjusted so as to be the difference, and the process returns to the control flow of FIG.

  If it is determined in step S71 that a difference in the amount of air blow is not set between the vent air outlet 26a on the driver's seat side and the vent air outlet 26b on the passenger seat side, the process proceeds to step S72, and the control of FIG. It is determined whether or not the blower air volume Vc is controlled to increase by the process of step S38 of the control in FIG.

  If it is determined in step S72 that the blower air volume Vc does not increase, the process proceeds to step S75, and the normal vent mode (the conditioned air of the set air volume Vfset is evenly distributed without correction and the vent air outlet on the driver's seat side is corrected. 26a and the vent outlet 26b on the passenger seat side) are selected, and if it is determined in step S72 that the blower air volume Vc increases, the process proceeds to step S73.

  In step S73, the presence or absence of a passenger in the passenger seat is determined based on the information read in step S35 of FIG.

  If it is determined in step S73 that there is an occupant in the passenger seat, the process proceeds to step S75, the normal vent mode is selected without correction, and if it is determined in step S73 that there is no occupant in the passenger seat, step Proceed to S74.

  In step S74, the vent mode is corrected so that the conditioned air corresponding to the increase in the blower air volume (Vc−Vset) is added to the conditioned air blown out from the vent outlet 26b on the passenger seat side, and the control flow of FIG. Return. In this way, by correcting the vent mode so that the conditioned air increases only on the passenger seat side where there is no passenger, it is possible to prevent the passenger from feeling uncomfortable or uncomfortable due to the increase in the blower air volume Vc.

[Fourth Embodiment]
A fourth embodiment of the present invention will be described with reference to FIGS. In the fourth embodiment, the configuration for increasing the blower air volume Vc in accordance with the battery cooling control and the configuration for preventing the conditioned air of the increased amount of the blower air volume Vc (Vc−Vset) from directly hitting the occupant are the first. This is different from the first and second embodiments.

  In the fourth embodiment, the control of the battery fan 48 (see FIG. 5) and the control of the air conditioner 20 (see FIG. 6) are basically performed in the same manner as in the first embodiment. The configuration of the process of calculating the blower voltage (the process of step S38 of the control in FIG. 6) is different from that of the first embodiment. Specifically, in the first embodiment, the blower voltage is calculated according to the flow shown in the flowchart of FIG. 7, but in the fourth embodiment, the blower voltage of the front blower 90 is as shown in the flowchart of FIG. The blower voltage of the rear blower 98 is calculated according to the flow shown in the flowchart of FIG.

<Rear blower control>
First, the flow of processing for calculating the blower voltage of the rear blower 98 will be described with reference to FIG.

  As shown in FIG. 11, first, in step S81, it is determined whether or not rear air conditioning (air conditioning for blowing conditioned air from the rear vent outlet 62) is set to ON. If it is determined in step S81 that the rear air conditioning is set to ON, the process proceeds to step S86, and if it is determined that the rear air conditioning is set to OFF, the process proceeds to step S82.

  In step S82, it is determined whether or not front air conditioning (air conditioning that blows conditioned air from an air outlet other than the rear vent outlet 62) is set to ON. If it is determined in step S82 that the front air conditioning is set to ON, the process proceeds to step S83, and if it is determined that the front air conditioning is set to OFF, the process returns to the control flow in FIG.

  In step S83, the presence or absence of a passenger in the rear seat is determined based on the information read in step S35 of FIG. In step S83, if it is determined that there is no occupant in the rear seat, the process proceeds to step S84, and if it is determined that there is an occupant in the rear seat, the process returns to the control flow in FIG.

At step S84, the in air volume _{V BAT} reference amount Vtar (present embodiment described above the battery fan 48 read in step S36 in FIG. 6, the same as the set air volume level Vset of the air conditioner 20 read in step S34 in FIG. 6 It is determined whether it is greater than (amount). If it is determined in step S84 that the battery air volume V _BAT is larger than the reference amount Vtar, the process proceeds to step S85, and if it is determined that the battery air volume V _BAT is equal to or less than the reference amount Vtar, the process proceeds to step S87.

In step S85, the blower voltage of the rear blower 98 is calculated so that the conditioned air corresponding to the increase in the outside air introduction amount (V _BAT −Vtar) necessary for the battery cooling control is blown out from the rear vent outlet 62. Return to control flow 6. As a result, even though the rear air conditioning is set to off, the increased conditioned air is blown out to the rear seat side where no occupants are present, preventing discomfort and discomfort to the front seat occupants it can.

In step S86, similarly to step S84, the whether the air volume _{V BAT} of the battery fan 48 read in step S36 in FIG. 6 is larger than the reference amount Vtar is determined. If it is determined in step S86 that the battery air volume V _BAT is larger than the reference amount Vtar, the process proceeds to step S88, and if it is determined that the battery air volume V _BAT is equal to or less than the reference amount Vtar, the process proceeds to step S87.

  In step S87, since it is not necessary to increase the amount of outside air introduced by the air conditioner 20, the blower voltage of the rear blower 98 is calculated so that the required amount of conditioned air is blown from the rear vent outlet 62, and FIG. Return to the control flow.

  In step S88, it is determined whether front air conditioning is set to ON. If it is determined in step S88 that the front air conditioning is set to ON, the process proceeds to step S90, and if it is determined that the front air conditioning is set to OFF, the process proceeds to step S89.

In step S89, the rear air blower 62 blows out the air conditioned air having the amount of increase in the amount of outside air necessary for battery cooling control (V _BAT -Vtar) added to the required air amount from the rear vent outlet 62. 98 blower voltages are calculated, and control returns to the control flow of FIG.

In step S90, the blower voltage of the rear blower 98 is calculated so that the conditioned air having an air volume in which half of the increase in the outside air introduction amount (V _BAT −Vtar) is added to the required air volume is blown out from the rear vent outlet 62. Then, the process returns to the control flow of FIG. The remaining half of the increase in the outside air introduction amount (V _BAT −Vtar) is added to the required air volume of the front air conditioning as will be described later, and the amount of the conditioned air obtained thereby is used for the front air conditioning.

<Control of front blower>
Next, the flow of processing for calculating the blower voltage of the front blower 90 will be described with reference to FIG.

As shown in FIG. 12, first, in step S91, the whether the air volume _{V BAT} of the battery fan 48 read in step S36 in FIG. 6 is larger than the reference amount Vtar is determined. If it is determined in step S91 that the battery air volume V _BAT is larger than the reference amount Vtar, the process proceeds to step S92, and if it is determined that the battery air volume V _BAT is equal to or less than the reference amount Vtar, the process proceeds to step S94.

  In step S92, it is determined whether or not the rear air conditioning is set to ON. In step S92, if it is determined that the rear air conditioning is set to ON, the process proceeds to step S96, and if it is determined that the rear air conditioning is set to OFF, the process proceeds to step S93.

  In step S93, the presence or absence of a passenger in the rear seat is determined based on the information read in step S35 of FIG. If it is determined in step S93 that there is no passenger in the rear seat, the process proceeds to step S94, and if it is determined that there is a passenger in the rear seat, the process proceeds to step S95.

In step S94, the blower voltage of the front blower 90 is calculated so that the requested amount of conditioned air is blown from the front air-conditioning outlet, and the flow returns to the control flow of FIG. At this time, when it is necessary to increase the outside air introduction amount in accordance with the battery cooling control, the conditioned air corresponding to the increase in the outside air introduction amount (V _BAT −Vtar) is blown out from the rear vent outlet 62.

In step S95, the amount of conditioned air obtained by adding an increase in the amount of outside air necessary for battery cooling control (V _BAT -Vtar) to the required amount of air is blown out from the front air conditioning outlet. The blower voltage of the front blower 90 is calculated, and the process returns to the control flow of FIG.

In step S96, the blower voltage of the front blower 90 is blown so that the air-conditioning air having an air volume obtained by adding half of the increase in the outside air introduction amount (V _BAT -Vtar) to the required air volume is blown out from the air outlet of the front air-conditioning. Is returned to the control flow of FIG. The other half of the increase in the outside air introduction amount (V _BAT −Vtar) is added to the required air volume of the rear air conditioning as described above, and the amount of the conditioned air obtained thereby is used for the rear air conditioning.

In addition, when both the front air conditioning and the rear air conditioning are set to ON, in the fourth embodiment, the air conditioning wind of the front air conditioning and the air conditioning air of the rear air conditioning are introduced into the outside air regardless of the presence or absence of a passenger in the rear seat. The amount of increase in the amount (V _BAT -Vtar) is increased by half, but when there is no occupant in the rear seat, the amount of increase in the outside air introduction amount (V _BAT -Vtar) is entirely out of the rear air-conditioning outlet You may make it blow out.

[Fifth Embodiment]
A fifth embodiment of the present invention will be described with reference to FIG. In the fifth embodiment, unlike the first to fourth embodiments, the battery fan 48 is controlled regardless of the air volume of the air conditioner 20.

<Battery fan control>
A flow of processing for controlling the battery fan 48 according to the fifth embodiment will be described. As in the first to fourth embodiments, the battery fan 48 is controlled by the battery fan control unit 104.

As shown in FIG. 13, first, in step S101, the temperature T _BAT detected by the battery temperature sensor 52 is read, and in the next step S102, the presence / absence of gas generation detected by the gas sensor 50 is read. In the fifth embodiment, since the battery fan 48 is controlled regardless of the air volume of the air conditioner 20, the process of reading the set air volume Vset of the air conditioner 20 can be omitted.

In a succeeding step S103, it is determined whether or not gas is generated from the battery 40 based on the information read in the step S102. If it is determined in step S103 that no gas is generated, the process proceeds to step S104. If it is determined that gas is generated, the process proceeds to step S107, and the battery fan 48 is driven with the maximum air volume _VBAT1 .

  However, in the present invention, the processing relating to gas generation detection (the processing in steps S102 and S103) can be omitted.

In step S104, it is determined whether or not the battery temperature T _BAT read in step S101 is higher than the above-described first temperature T _BAT1 (for example, 40 ° C.).

If it is determined in step S104 that the battery temperature T _BAT is _{equal to} or lower than the first temperature T _BAT1 , the process proceeds to step S105, and if it is determined that the battery temperature T _BAT is higher than the first temperature T _BAT1 , the process proceeds to step S107. The battery fan 48 is driven at the maximum air volume _VBAT1 .

In step S105, it is determined whether or not the battery temperature T _BAT read in step S101 is higher than the above-described second temperature T _BAT2 (for example, 35 ° C.).

If it is determined in step S105 that the battery temperature T _BAT is _{equal to} or lower than the second temperature T _BAT2 , the battery 40 does not need to be cooled, the process proceeds to step S108, and the battery fan 48 is stopped.

On the other hand, if it is determined in step S105 that the battery temperature T _BAT is higher than the second temperature T _BAT2 , the process proceeds to step S106 without determining whether or not the air conditioner 20 is on. On the basis of the map shown in FIG. 8, the battery fan 48 is driven with an air volume corresponding to the battery temperature T _BAT .

As described above, in the fifth embodiment, when the temperature of the battery 40 is higher than the second temperature T _BAT2 (for example, 35 ° C.), the battery fan 48 determines whether or not the air conditioner 20 is on. The operation of the battery fan 48 is controlled so that the exhaust amount becomes an amount corresponding to the temperature of the battery 40 (step S106), and this point is different from the first to fourth embodiments.

Therefore, if the air conditioner 20 is always operated with the set air volume Vset, the exhaust amount V _BAT by the battery fan 48 may be larger than the outside air introduction amount Vc of the air conditioner 20 by performing the process of step S106. The same applies to the case where the battery fan 48 is driven at the maximum air volume V _BAT1 in step S107. If the exhaust amount V _BAT by the battery fan 48 is larger than the outside air introduction amount Vc of the air conditioner 20, there is a concern that the air conditioning efficiency is lowered. Therefore, also in the fifth embodiment, as in the first to fourth embodiments, when the battery fan 48 operates in a state where the air conditioner 20 is activated, the air introduction mode of the air conditioner 20 is selected as the outside air introduction mode. by the exhaust amount V _BAT by the battery fan becomes larger than the reference amount Vtar above, the outside air introduction amount Vc of the air conditioner 20 is controlled to increase in an amount greater than the set air volume Vset. Further, in this case, the air conditioner 20 is controlled so that the increased amount of the outside air introduction amount (Vc−Vset) does not directly hit the passenger, thereby preventing the passenger from feeling uncomfortable or uncomfortable.

  In the fifth embodiment, the specific configuration for increasing the outside air introduction amount Vc of the air conditioner 20 and the conditioned air of the increase amount (Vc−Vset) of the outside air introduction amount do not directly hit the passenger. As the specific configuration, various configurations can be adopted. For example, as in the second embodiment, by controlling the blowing mode with the flow shown in FIG. 9, the conditioned air corresponding to the increase in the outside air introduction amount (Vc−Vset) is blown from a predetermined blowing port, As in the embodiment, the vent mode correction control is performed according to the flow shown in FIG. 10, so that when there is no passenger in the passenger seat, the increased amount of the outside air introduction amount (Vc−Vset) is blown to the passenger seat side. As with the fourth embodiment, the blowers 90 and 98 are controlled according to the flow shown in FIGS. 11 and 12, so that the increase in the outside air introduction amount can be achieved when there is no passenger in the rear seat. The conditioned air can be blown out from the outlet on the rear seat side.

[Sixth Embodiment]
A sixth embodiment of the present invention will be described with reference to FIGS. 14 and 15. When the exhaust amount V _BAT by the battery fan 48 becomes larger than the outside air introduction amount Vc of the air conditioner 20 in accordance with the battery cooling control, the outside air introduction amount Vc of the air conditioner 20 is increased in the first to fifth embodiments. This prevents the air conditioning efficiency from decreasing, but the sixth embodiment has a configuration in which the air conditioning efficiency can be satisfactorily maintained without increasing the outside air introduction amount Vc of the air conditioner 20. The sixth embodiment will be specifically described below.

  As shown in FIG. 14, in the sixth embodiment, an outside air introduction duct 220 is provided as an outside air introduction portion for directly introducing outside air into the battery case 42 without passing through the vehicle interior space 6. Yes. Specifically, the outside air introduction duct 220 is branched from an inside air introduction duct 44 that communicates the space inside the battery case 42 and the vehicle interior space 6. The outside air introduction duct 220 is provided so as to penetrate the body panel 4, and the front end of the outside air introduction duct 220 is disposed in the vehicle exterior space 8. Thereby, the vehicle exterior space 8 and the space in the battery case 42 communicate with each other via the outside air introduction duct 220. An adjustment damper 222 as an introduction amount adjusting means is provided at a junction between the inside air introduction duct 44 and the outside air introduction duct 220.

  A motor (not shown) that drives the adjustment damper 222 is electrically connected to the battery fan control unit 104, and the opening degree of the adjustment damper 222 is controlled by the battery fan control unit 104. Thus, the battery fan control unit 104 can adjust the amount of outside air introduced into the space in the battery case 42 via the outside air introduction duct 220 by controlling the opening of the adjustment damper 222.

<Battery fan control>
In the sixth embodiment, the battery fan 48 may be controlled to be driven with an air volume corresponding to the set air volume (air-conditioning air volume) Vc of the air conditioner 20 as in the first embodiment (FIG. 5). Reference may be made so that the air-conditioning air volume Vc is driven as in the fifth embodiment (see FIG. 13).

<Control of adjustment damper>
Next, the flow of control processing of the adjustment damper 222 will be described with reference to FIG.

As shown in FIG. 15, first, in steps S <b> 121 to S <b> 124, the temperature Ta detected by the outside air temperature sensor 34, the temperature Tr detected by the indoor temperature sensor 32, and the setting of the air conditioner 20 transmitted from the air conditioning controller 102. The information on the air volume Vset and the air volume V _{BAT of the} battery fan 48 are read.

  In subsequent step S125, it is determined whether or not the room temperature Tr read in step S122 is lower than the outside air temperature Ta read in step S121. If it is determined in step S125 that the room temperature Tr is equal to or higher than the outside air temperature Ta, the process proceeds to step S129. If it is determined that the room temperature Tr is lower than the outside air temperature Ta, the process proceeds to step S126.

  In step S129, the opening degree of the adjustment damper 222 is adjusted so that only the outside air in the vehicle exterior space 8 is introduced into the space in the battery case 42. Thereby, the battery 40 can be efficiently cooled using outside air having a temperature lower than that of the air in the vehicle interior space.

In step S126, the air volume V _BAT of the battery fan, whether (in this embodiment the same amount as the conditioned air quantity Vc) loaded above the reference amount Vtar calculated on the basis of the conditioned air volume Vc greater than in step S123 is To be judged. If it is determined in step S126 that the air volume V _BAT of the battery fan is equal to or less than the air conditioning air volume Vc, the process proceeds to step S128, and if it is determined that the air volume V _{BAT of the} battery fan is greater than the air conditioning air volume Vc, the process proceeds to step S127.

In step S128, the exhaust amount V _BAT by the battery fan 48 or less is the reference amount Vtar, there is no need to increase the external air introduction amount of the battery casing 42, only the air in the vehicle interior space 6 of the battery case 42 The opening degree of the adjustment damper 222 is adjusted so as to be introduced into the space.

In step S127, the opening degree of the adjustment damper 222 is adjusted so that the same amount of outside air as the difference (V _BAT −Vtar) between the exhaust amount V _BAT and the reference amount Vtar is introduced into the battery case 42 through the outside air introduction duct 220. Adjusted. Thus, the amount of outside air introduced into the battery case 42 can be increased according to the exhaust amount V _BAT without increasing the air conditioning air amount Vc. Therefore, it is possible to prevent outside air from entering the vehicle interior space 6 from the gap of the vehicle body and the like without passing through the air conditioner 20, and air conditioning efficiency can be maintained well.

  However, in the present invention, the outside air introduction section and the introduction amount adjusting means are not limited to the above configuration. For example, in the sixth embodiment, the outside air introduction part 220 is provided to be branched from the inside air introduction duct 44, but the outside air introduction part may be provided so as to extend directly from the battery case 42.

  While the present invention has been described with reference to the above-described embodiments, the present invention is not limited to the above-described embodiments.

It is the schematic which shows the motor vehicle carrying the battery cooling system which concerns on this invention. It is sectional drawing which shows the structure of the front air-conditioning part of an air conditioner. It is sectional drawing which shows the structure of the rear air-conditioning part of an air conditioner. It is a block diagram which shows the structure for controlling an air conditioner and a battery fan. It is a flowchart which shows the flow of a process of control of the battery fan which concerns on 1st Embodiment. It is a flowchart which shows the flow of a process of control of an air conditioner. It is a flowchart which shows the flow of a process of control of the blower of an air conditioner. It is the specific example of the map for setting the air volume of a battery fan according to battery temperature. It is a flowchart which shows the flow of a control process of the blowing mode which concerns on 2nd Embodiment. It is a flowchart which shows the flow of the process of the vent mode correction control which concerns on 3rd Embodiment. It is a flowchart which shows the flow of the process of the control of the rear blower which concerns on 4th Embodiment. It is a flowchart which shows the flow of a process of control of the front blower which concerns on 4th Embodiment. It is a flowchart which shows the flow of a process of control of the battery fan which concerns on 5th Embodiment. It is the schematic which shows the structure of the motor vehicle which concerns on 6th Embodiment. It is a flowchart which shows the flow of a process of control of the adjustment damper which concerns on 6th Embodiment.

Explanation of symbols

2: automobile, 4: body panel, 6: interior space, 8: exterior space, 10: front seat, 12: rear seat, 20: air conditioner, 22: outside air inlet, 24: inside air inlet, 26: vent Outlet, 28: Heat outlet, 30: Defroster outlet, 32: Indoor temperature sensor, 34: Outside temperature sensor, 40: Battery, 42: Battery case, 44. Inside air introduction duct, 46: exhaust duct, 48: battery fan, 50: gas sensor, 52: battery temperature sensor, 62: rear vent outlet, 64: rear heat outlet, 80: inside / outside air switching damper, 90: front blower, 98: Rear blower 102: Air conditioning control unit 104: Battery fan control unit 110: Passenger seat occupant detection sensor 112: Rear seat occupant detection sensor

Claims (6)

Battery,
A battery housing section for housing the battery;
An air introduction part for communicating the space in the battery housing part and the vehicle interior space;
An air discharge portion that communicates the space inside the battery housing portion and the space outside the vehicle;
A battery fan that introduces air from the vehicle interior space into the battery housing portion through the air introduction portion, and exhausts air from the battery housing portion to the outside of the vehicle through the air discharge portion;
Battery temperature detecting means for detecting the temperature of the battery;
An air conditioner for air conditioning the vehicle interior space;
A blower provided in the air conditioner for introducing air into the air conditioner;
Air that is provided in the air conditioner and switches the setting of the air conditioner between an outside air introduction mode that introduces air in the outside space into the air conditioner and an inside air circulation mode that introduces air in the vehicle interior space into the air conditioner. Introduction mode switching means;
Control means for controlling the operation of the air conditioner and the operation of the battery fan;
A battery cooling system for a vehicle , comprising: gas detection means for detecting the presence or absence of gas generation from the battery ,
The control means includes
When operating the battery fan in a state where the air conditioner is operating, performing a predetermined battery cooling control while controlling the air introduction mode switching means so that the outside air introduction mode is selected,
The battery cooling control is
When it is detected that the temperature detected by the battery temperature detecting means is equal to or lower than a predetermined temperature and no gas is generated by the gas detecting means, the exhaust amount by the battery fan is set in the air conditioner. Controlling the operation of the battery fan so as to be equal to or less than a reference amount consisting of an amount equal to an air amount or an amount obtained by calculating the set air amount;
When the temperature detected by the battery temperature detection means is higher than a predetermined temperature and / or when it is detected that gas is generated by the gas detection means, the exhaust amount by the battery fan is larger than the reference amount. A vehicle battery cooling system for controlling the operation of the battery fan so as to be large. Battery,
A battery housing section for housing the battery;
An air introduction part for communicating the space in the battery housing part and the vehicle interior space;
An air discharge portion that communicates the space inside the battery housing portion and the space outside the vehicle;
A battery fan that introduces air from the vehicle interior space into the battery housing portion through the air introduction portion, and exhausts air from the battery housing portion to the outside of the vehicle through the air discharge portion;
Battery temperature detecting means for detecting the temperature of the battery;
An air conditioner for air conditioning the vehicle interior space;
A blower provided in the air conditioner for introducing air into the air conditioner;
Air that is provided in the air conditioner and switches the setting of the air conditioner between an outside air introduction mode that introduces air in the outside space into the air conditioner and an inside air circulation mode that introduces air in the vehicle interior space into the air conditioner. Introduction mode switching means;
Control means for controlling the operation of the air conditioner and the operation of the battery fan,
The control means controls the operation of the battery fan so that the amount of exhaust by the battery fan becomes an amount corresponding to the temperature of the battery when the temperature detected by the battery temperature detection means is higher than a predetermined temperature. A vehicle battery cooling system,
The vehicle includes a blowout port that blows conditioned air toward the passenger, and a blowout port that is different from the blowout port,
The control means includes
When the battery fan is operated in a state where the air conditioner is operated, the air introduction mode switching unit is controlled so that the outside air introduction mode is selected, and an exhaust amount by the battery fan is a set air volume of the air conditioner. The amount of outside air introduced by the blower is increased to a larger amount than the set amount of air, and the amount of outside air introduced by the blower is increased. A vehicle battery cooling system for controlling a vehicle , wherein the air conditioner is controlled so that an increased amount of conditioned air is blown out from the other outlet . Battery,
A battery housing section for housing the battery;
An air introduction part for communicating the space in the battery housing part and the vehicle interior space;
An air discharge portion that communicates the space inside the battery housing portion and the space outside the vehicle;
A battery fan that introduces air from the vehicle interior space into the battery housing portion through the air introduction portion, and exhausts air from the battery housing portion to the outside of the vehicle through the air discharge portion;
Battery temperature detecting means for detecting the temperature of the battery;
An air conditioner for air conditioning the vehicle interior space;
A blower provided in the air conditioner for introducing air into the air conditioner;
Air that is provided in the air conditioner and switches the setting of the air conditioner between an outside air introduction mode that introduces air in the outside space into the air conditioner and an inside air circulation mode that introduces air in the vehicle interior space into the air conditioner. Introduction mode switching means;
Control means for controlling the operation of the air conditioner and the operation of the battery fan,
The control means controls the operation of the battery fan so that the amount of exhaust by the battery fan becomes an amount corresponding to the temperature of the battery when the temperature detected by the battery temperature detection means is higher than a predetermined temperature. A vehicle battery cooling system,
The vehicle includes a driver's seat side outlet provided on the driver's seat side in the passenger compartment, a passenger's side outlet provided on the passenger's seat side in the passenger compartment, and an assistant for detecting the presence or absence of a passenger in the passenger seat. Seat occupant detection means,
The control means includes
When the battery fan is operated in a state where the air conditioner is operated, the air introduction mode switching unit is controlled so that the outside air introduction mode is selected, and an exhaust amount by the battery fan is a set air volume of the air conditioner. The amount of outside air introduced by the blower is increased to an amount larger than the set air volume , and the passenger seat occupant detection means The air conditioner is controlled so that the increased amount of the outside air introduction amount by the blower is blown out from the front passenger side outlet when it is detected that there is no occupant in the seat. Battery cooling system. Battery,
A battery housing section for housing the battery;
An air introduction part for communicating the space in the battery housing part and the vehicle interior space;
An air discharge portion that communicates the space inside the battery housing portion and the space outside the vehicle;
A battery fan that introduces air from the vehicle interior space into the battery housing portion through the air introduction portion, and exhausts air from the battery housing portion to the outside of the vehicle through the air discharge portion;
Battery temperature detecting means for detecting the temperature of the battery;
An air conditioner for air conditioning the vehicle interior space;
A blower provided in the air conditioner for introducing air into the air conditioner;
Air that is provided in the air conditioner and switches the setting of the air conditioner between an outside air introduction mode that introduces air in the outside space into the air conditioner and an inside air circulation mode that introduces air in the vehicle interior space into the air conditioner. Introduction mode switching means;
Control means for controlling the operation of the air conditioner and the operation of the battery fan,
The control means controls the operation of the battery fan so that the amount of exhaust by the battery fan becomes an amount corresponding to the temperature of the battery when the temperature detected by the battery temperature detection means is higher than a predetermined temperature. A vehicle battery cooling system,
The vehicle detects a front seat outlet provided on the front seat side of the passenger compartment, a rear outlet outlet provided on the rear seat side of the passenger compartment, and the presence or absence of a passenger in the rear seat. Seat occupant detection means,
The control means includes
When the battery fan is operated in a state where the air conditioner is operated, the air introduction mode switching unit is controlled so that the outside air introduction mode is selected, and an exhaust amount by the battery fan is a set air volume of the air conditioner. The air volume introduced by the blower is increased to an amount larger than the set air volume , and the rear seat occupant detection means The air conditioner is controlled so that the conditioned air for the increased amount of outside air introduced by the blower is blown out from the rear seat side outlet when it is detected that there is no passenger in the seat. Battery cooling system. Battery,
A battery housing section for housing the battery;
An air introduction part for communicating the space in the battery housing part and the vehicle interior space;
An air discharge portion that communicates the space inside the battery housing portion and the space outside the vehicle;
A battery fan that introduces air from the vehicle interior space into the battery housing portion through the air introduction portion, and exhausts air from the battery housing portion to the outside of the vehicle through the air discharge portion;
Battery temperature detecting means for detecting the temperature of the battery;
An air conditioner for air conditioning the vehicle interior space;
A blower provided in the air conditioner for introducing air into the air conditioner;
Air that is provided in the air conditioner and switches the setting of the air conditioner between an outside air introduction mode that introduces air in the outside space into the air conditioner and an inside air circulation mode that introduces air in the vehicle interior space into the air conditioner. Introduction mode switching means;
A battery cooling system for a vehicle, comprising: control means for controlling the operation of the air conditioner and the operation of the battery fan;
The vehicle has an outside air introduction part that communicates a space inside the battery housing part and a space outside the vehicle in order to introduce outside air directly into the battery accommodation part without passing through a vehicle interior space, and the outside through the outside air introduction part. An introduction amount adjusting means for adjusting an introduction amount of outside air introduced from the space into the battery housing portion;
The control means includes
When operating the battery fan in a state where the air conditioner is operating, performing a predetermined battery cooling control while controlling the air introduction mode switching means so that the outside air introduction mode is selected,
The battery cooling control is
When the temperature detected by the battery temperature detection means is equal to or lower than a predetermined temperature, the reference air amount is the same as the set air volume of the air conditioner or the amount obtained by calculating the set air volume. Control the operation of the battery fan so that
When the temperature detected by the battery temperature detection means is higher than a predetermined temperature, the operation of the battery fan is controlled so that the exhaust amount by the battery fan is larger than the reference amount ,
In the battery cooling control, when the battery fan is driven so that an exhaust amount by the battery fan is larger than the reference amount in the battery cooling control, the same amount of outside air as the difference between the exhaust amount and the reference amount is generated. The vehicle battery cooling system according to claim 1, wherein the introduction amount adjusting means is controlled so as to be introduced into the battery housing portion through the outside air introduction portion . Battery,
A battery housing section for housing the battery;
An air introduction part for communicating the space in the battery housing part and the vehicle interior space;
An air discharge portion that communicates the space inside the battery housing portion and the space outside the vehicle;
A battery fan that introduces air from the vehicle interior space into the battery housing portion through the air introduction portion, and exhausts air from the battery housing portion to the outside of the vehicle through the air discharge portion;
Battery temperature detecting means for detecting the temperature of the battery;
An air conditioner for air conditioning the vehicle interior space;
A blower provided in the air conditioner for introducing air into the air conditioner;
Air that is provided in the air conditioner and switches the setting of the air conditioner between an outside air introduction mode that introduces air in the outside space into the air conditioner and an inside air circulation mode that introduces air in the vehicle interior space into the air conditioner. Introduction mode switching means;
Control means for controlling the operation of the air conditioner and the operation of the battery fan,
The control means controls the operation of the battery fan so that the amount of exhaust by the battery fan becomes an amount corresponding to the temperature of the battery when the temperature detected by the battery temperature detection means is higher than a predetermined temperature. A vehicle battery cooling system,
The vehicle has an outside air introduction part that communicates a space inside the battery housing part and a space outside the vehicle in order to introduce outside air directly into the battery accommodation part without passing through a vehicle interior space, and the outside through the outside air introduction part. An introduction amount adjusting means for adjusting an introduction amount of outside air introduced from the space into the battery housing portion;
The control means includes
When operating the battery fan in a state where the air conditioner is operating, the air introduction mode switching means is controlled so that the outside air introduction mode is selected, and the amount of exhaust by the battery fan is the same amount as the set air volume Alternatively, when the air volume becomes larger than a reference amount that is obtained by calculating the set air volume, the same amount of outside air as the difference between the exhaust amount and the reference amount is introduced into the battery housing portion through the outside air introducing portion. And a battery cooling system for a vehicle, wherein the introduction amount adjusting means is controlled.

Images