Patent Publication Number: US-2023146968-A1

Title: System and method for controlling internal temperature of vehicle when engine is turned off

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     The present application claims priority to Korean Patent Application No. 10-2021-0153821, filed on Nov. 10, 2021, the entire contents of which is incorporated herein for all purposes by this reference. 
     BACKGROUND OF THE PRESENT DISCLOSURE 
     Field of the Present Disclosure 
     The present disclosure relates to a system and a method for controlling an internal temperature of a vehicle when an engine of the vehicle is turned off, which can detect an internal temperature even in a state where an engine is turned off for parking a vehicle to maintain the internal temperature at a proper temperature while suppressing an increase in the internal temperature. 
     Description of Related Art 
     A vehicle that mainly travels outdoors is exposed to solar radiation, increasing an internal temperature of the vehicle. An air conditioner provided in the vehicle is operated in a state where an engine is driven due to traveling or idling of the vehicle to reduce a temperature of the vehicle to a proper temperature. 
     However, because the air conditioner cannot be operated in the state where the engine is turned off, the internal temperature of the vehicle exposed to solar radiation in summer rapidly rises. If a driver parks the vehicle in a state of placing an infant or a pet in the vehicle, and then the driver leaves the vehicle for a while, there is a risk of the safety accident. When the driver leaves the vehicle in the state of maintaining the starting of the engine of the vehicle, the infant or the pet can operate a vehicle operation means such as a shift lever or a parking brake, and such operating moves the vehicle, causing the accident. To prevent such a problem, when the driver leaves the vehicle in a state where the engine of the vehicle is turned off, the infant or the pet may be exposed to a high temperature due to a rapid increase in the internal temperature, being injured. 
     To solve the problem, the air conditioner may be operated with the starting of the vehicle using a remote starting function of the vehicle, but this has a problem of increasing a fuel cost and causing an engine noise due to an unnecessary engine idling. 
     The information included in this Background of the present disclosure section is only for enhancement of understanding of the general background of the present disclosure and may not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art. 
     BRIEF SUMMARY 
     Various aspects of the present disclosure are directed to providing a system and a method for controlling an internal temperature of a vehicle when an engine of the vehicle is turned off, which sense an internal temperature of a vehicle to introduce outside air and discharges the high temperature internal air to the outside while cooling the air in the vehicle, when set to be operated in advance even in a state where an engine is turned off. 
     A system for controlling an internal temperature of a vehicle when an engine is turned off according to an exemplary embodiment of the present disclosure for achieving the object includes a temperature sensor configured to measure the internal temperature of the vehicle; a first blower configured to discharge cooled air when an electric power is supplied to the first blower; a battery; and a control unit electrically connected to the temperature sensor and the first blower and configured to receive a signal of the internal temperature from the temperature sensor and to operate the first blower, in which the control unit electrically connected to the battery is configured to control an electric power of the battery to be applied to the first blower when the controller concludes that the internal temperature of the vehicle is equal to or greater than a predetermined reference temperature in a state where an engine of the vehicle is turned off. 
     The first blower is provided with a Peltier element configured to cool and heat first and second surfaces of the Peltier element, respectively, by a Peltier effect, the air cooled by the Peltier element is supplied to an interior of the vehicle, and air heated by the Peltier element is discharged to the outside of the vehicle. 
     The first blower is provided on a seatback of a seat in the vehicle, a vent through which the cooled air is discharged is formed on a headrest of the seat, and the system further includes a headrest duct connecting the first blower to the vent so that the air cooled by the Peltier element is supplied to an interior of the vehicle through the vent. 
     The system for controlling the internal temperature of the vehicle when the engine is turned off further includes a front vent through which the air flows into the interior of the vehicle from the outside; a vent grill configured to discharge the air in the vehicle to the outside; and an exhaust duct including a rear end portion connected to the vent grill to discharge the air in the interior of the vehicle and the air heated by the Peltier element to the outside of the vehicle. 
     The system for controlling the internal temperature of the vehicle when the engine is turned off further includes a second blower provided on a front end portion of the exhaust duct so that the air heated by the Peltier element and the air in the vehicle are discharged through the exhaust duct. 
     The exhaust duct has a plurality of ducts telescopically connected each other so that a length of the exhaust duct is adjusted depending upon movement of the seat. 
     The system for controlling the internal temperature of the vehicle when the engine is turned off further includes a connection duct connecting the first blower to the second blower to supply the air heated by the Peltier element from the first blower to the second blower. 
     An operation switch configured to set whether the first blower is operated is provided on one side of the interior of the vehicle. 
     The control unit is configured to operate the first blower depending upon the internal temperature of the vehicle when the operation switch is set as ON. 
     The control unit is configured to operate the first blower depending upon the internal temperature of the vehicle when an operation request signal is input thereto by a telematics service. 
     Meanwhile, a method for controlling an internal temperature of a vehicle when an engine is turned off according to an exemplary embodiment of the present disclosure includes turning off an engine that turns off the engine of a vehicle and inputs a state where the engine of the vehicle is turned off to a control unit; detecting, by the control unit, an operation switch that detects whether the operation switch is set as ON; waiting for, by the control unit, an electric power that allows a battery to be in a state of supplying an electric power when the operation switch is ON; comparing, by the control unit, temperatures that compares whether the internal temperature of the vehicle measured by a temperature sensor is equal to or greater than a predetermined reference temperature so that a first blower provided in the vehicle is operated; and operating, by the control unit, a blower that operates the first blower by supplying the electric power of the battery to the first blower so that the first blower blows cooled air when the internal temperature is equal to or greater than the predetermined reference temperature. 
     The operating of the blower also supplies the electric power to a Peltier element so that the air is cooled by the Peltier element provided on the first blower in addition to blowing the air by operating the first blower. 
     The operating of the blower operates a second blower configured to discharge the air heated by the Peltier element and discharged from the first blower and the internal air of the vehicle to the outside together with the first blower. 
     In the comparing of the temperatures, when the internal temperature is not the reference temperature or higher, the method returns to the waiting for the electric power. 
     The method further includes prior to the turning off the engine, turning on an USM that turns on the user setting mode (USM) of the vehicle; determining whether the engine is turned on that determines whether the engine of the vehicle has been turned on; and determining whether a control unit is operated that determines whether the control unit is normally operated, in which when the determining of whether the engine is turned on and the determining of whether the control unit is normally operated are all satisfied, the turning off the engine is performed. 
     Furthermore, a method for controlling an internal temperature of a vehicle when an engine is turned off according to an exemplary embodiment of the present disclosure includes turning off an engine that turns off the engine of a vehicle and inputs a state where the engine of the vehicle is turned off to a control unit; determining, by the control unit, whether a remote control is requested that determines whether a control of the internal temperature of the vehicle is remotely requested through a telematics service; waiting for, by the control unit, an electric power that allows a battery to be in a state of supplying the electric power when the control of the internal temperature of the vehicle is requested; comparing, by the control unit, temperatures that compares whether the internal temperature of the vehicle measured by a temperature sensor is equal to or greater than a predetermined reference temperature so that a first blower provided in the vehicle is operated; and operating, by the control unit, a blower that operates the first blower by supplying the electric power of the battery to the first blower so that the first blower blows cooled air when the internal temperature is equal to or greater than the predetermined reference temperature. 
     The operating of the blower also supplies the electric power to a Peltier element so that the air is cooled by the Peltier element provided on the first blower in addition to blowing the air by operating the first blower. 
     The operating of the blower operates a second blower configured to discharge the air heated by the Peltier element and discharged from the first blower and the internal air of the vehicle to the outside together with the first blower. 
     In the comparing of the temperatures, when the internal temperature is not the reference temperature or higher, the method returns to the waiting for the electric power. 
     The method further includes prior to the turning off the engine, turning on an USM that turns on the user setting mode (USM) of the vehicle; determining whether the engine is turned on that determines whether the engine of the vehicle has been turned on; and determining whether a control unit is operated that determines whether the control unit is normally operated, in which when the determining of whether the engine is turned on and the determining of whether the control unit is normally operated are all satisfied, the turning off the engine is performed. 
     According to the system and method for controlling the internal temperature of the vehicle when the engine is turned off according to an exemplary embodiment of the present disclosure having the above configuration, when set to be operated in advance, it is possible to cool the air in the vehicle while introducing the outside air when the internal temperature of the vehicle rises, and discharge the predetermined temperature air to the outside, maintaining the internal temperature of the vehicle at the proper temperature. 
     Therefore, it is possible to prevent the infant or the pet from being exposed to the predetermined temperature (when the engine is turned off) or the safety accident caused by operating the vehicle operation means (when the engine is operated) even when the driver leaves the vehicle for a while in a state of placing the infant or the pet in the vehicle. 
     Furthermore, it is possible to reduce the internal temperature of the vehicle in advance in case of getting on the vehicle after parking the vehicle for a long time in the state where nobody is in the vehicle. 
     The methods and apparatuses of the present disclosure have other features and advantages which will be apparent from or are set forth in more detail in the accompanying drawings, which are incorporated herein, and the following Detailed Description, which together serve to explain certain principles of the present disclosure. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a schematic diagram showing a system for controlling an internal temperature of a vehicle when an engine is turned off according to an exemplary embodiment of the present disclosure. 
         FIG.  2    is a rear perspective diagram showing a cap of the vehicle mounted with the system for controlling the internal temperature of the vehicle when the engine is turned off according to an exemplary embodiment of the present disclosure. 
         FIG.  3 A  and  FIG.  3 B  are schematic diagrams showing the airflow by the system for controlling the internal temperature of the vehicle when the engine is turned off according to an exemplary embodiment of the present disclosure. 
         FIG.  4 A  and  FIG.  4 B  are schematic diagrams showing an operation structure of a first blower in system for controlling the internal temperature of the vehicle when the engine is turned off according to an exemplary embodiment of the present disclosure. 
         FIG.  5    is a schematic diagram showing a side surface of a seat in the system for controlling the internal temperature of the vehicle when the engine is turned off according to an exemplary embodiment of the present disclosure. 
         FIG.  6    is a perspective diagram showing an exhaust duct in the system controlling the internal temperature of the vehicle when the engine is turned off according to an exemplary embodiment of the present disclosure. 
         FIG.  7 A  and  FIG.  7 B  are cross-sectional diagrams showing a state where a length of the exhaust duct is adjusted in the system for controlling the internal temperature of the vehicle when the engine is turned off according to an exemplary embodiment of the present disclosure. 
         FIG.  8    is a flowchart showing a method for controlling the internal temperature of the vehicle when the engine is turned off according to an exemplary embodiment of the present disclosure. 
         FIG.  9    is a flowchart showing a method for controlling an internal temperature of a vehicle when an engine is turned off according to another exemplary embodiment of the present disclosure. 
     
    
    
     It may be understood that the appended drawings are not necessarily to scale, presenting a somewhat simplified representation of various features illustrative of the basic principles of the present disclosure. The specific design features of the present disclosure as disclosed herein, including, for example, specific dimensions, orientations, locations, and shapes will be determined in part by the particularly intended application and use environment. 
     In the figures, reference numbers refer to the same or equivalent parts of the present disclosure throughout the several figures of the drawing. 
     DETAILED DESCRIPTION 
     Reference will now be made in detail to various embodiments of the present disclosure(s), examples of which are illustrated in the accompanying drawings and described below. While the present disclosure(s) will be described in conjunction with exemplary embodiments of the present disclosure, it will be understood that the present description is not intended to limit the present disclosure(s) to those exemplary embodiments of the present disclosure. On the other hand, the present disclosure(s) is/are intended to cover not only the exemplary embodiments of the present disclosure, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the present disclosure as defined by the appended claims. 
     Hereinafter, a system and a method for controlling an internal temperature of a vehicle when an engine is turned off according to an exemplary embodiment of the present disclosure will be described in detail with reference to the accompanying drawings. 
     A system for controlling an internal temperature of a vehicle when an engine is turned off according to an exemplary embodiment of the present disclosure includes a temperature sensor  43  configured to measure an internal temperature (Ti) of a vehicle, a first blower  31  configured to discharge cooled air when an electric power is supplied, a battery  44 , and a control unit  50  configured to receive the internal temperature (Ti) of the vehicle from the temperature sensor  43 , and to operate the first blower  31 , in which the control unit  50  controls an electric power of the battery  44  to be applied to the first blower  31  when the internal temperature (Ti) of the vehicle is equal to or greater than a predetermined reference temperature (Tr) in a state where the engine of the vehicle is turned off. 
     According to an exemplary embodiment of the present disclosure, the cooled air is supplied into the interior of the vehicle when the internal temperature (Ti) of the vehicle is equal to or greater than the predetermined reference temperature (Tr) by measuring the internal temperature (Ti) of the interior of the vehicle parked after the engine is turned off, so that the interior of the vehicle may be maintained at a proper temperature. 
     According to the exemplary embodiment of the present disclosure, an example of the vehicle may be a truck. Therefore, an example in which an internal temperature of a cap  10  of the truck is controlled in the truck which is parked in a state where an engine is turned off will be described. 
     The cap  10  is formed with a front vent  11  allowing outside air to flow into the inside of the cap  10 , that is, the interior of the vehicle and a vent grill 2 configured to discharge the air in the vehicle to the outside of the vehicle. When the vehicle is exposed to solar radiation, the temperature in the cap  10  is higher than that of the outside air, so that the outside air flows into the cap  10  through the front vent  11 . Furthermore, the air heated by the high temperature air in the cap  10  and a Peltier element  31   a  to be described later is discharged to the outside through the vent grill  12 . 
     A seat  20  includes a seat cushion  21  configured to support a passenger’s hips, a seatback  22  configured to support the passenger’s back, and a headrest  23  configured to support the passenger’s head. The seat cushion  21  is provided to be slidable in the cap  10 , and the seatback  22  is provided so that its angle is adjusted with respect to the seat cushion  21 . 
     According to an exemplary embodiment of the present disclosure, the first blower  31  configured to supply the cooled air into the cap  10  and the second blower  32  configured to discharge the air in the cap  10  to the outside are provided on a rear surface of the seatback  22 . 
     When the electric power is applied, the first blower  31  is configured to blow the air like a general blower. According to an exemplary embodiment of the present disclosure, to supply the cooled air into the cap  10 , an element to cool the air is provided in the first blower  31 .  FIG.  4 A  and  FIG.  4 B  show examples in which the Peltier element  31   a  is provided in the first blower  31 . Because the Peltier element  31   a  is integrally provided in the first blower  31 , the electric power is also supplied to the Peltier element  31   a  for blowing when the electric power is supplied to the first blower  31  for blowing. The Peltier element  31   a  is an element that has one side surface heated by a Peltier effect and the other side surface cooled when the electric power is applied thereto. While being blown to both side surfaces of the Peltier element  31   a , the air passing through a cooling surface  31   a  of the Peltier element  31   a  is supplied into the cap  10 , and the air passing through a heating surface  31   ab  of the Peltier element  31   a  is discharged to the outside of the cap  10 , so that the interior of the vehicle maintains a proper temperature. 
     The second blower  32  discharges the internal air of the vehicle and the air passing through the heating surface  31   ab  of the Peltier element  31   a  to the outside of the vehicle. The second blower  32  is formed to have a structure of a general blower to discharge the air in the cap  10  highly heated by solar radiation and the air heated by passing through the heating surface  31   ab  to the outside of the cap  10  together. 
     Meanwhile, as shown in  FIG.  5   , a duct is provided the air discharged from the first blower  31  and the second blower  32  to flows in an intended direction. 
     A headrest duct  33  is formed to connect the first blower  31  to a vent  23   a  formed on the headrest  23 . The headrest duct  33  allows the air passing through the cooling surface  31   a  to be supplied from the first blower  31  to the vent  23   a , so that the air cooled in the vent  23   a  may be blown into the cap  10 . 
     A connection duct  34  connects the first blower  31  to the second blower  32 . The connection duct  34  is a passage through which the air passing through the heating surface  31   ab  flows to the second blower  32  without distributing the air. 
     An exhaust duct  35  is provided to connect the second blower  32  to the vent grill  12 . Because the second blower  32  is provided on a front end portion of the exhaust duct  35 , the second blower  32  discharges the air heated by the heating surface  31   ab  and the air in the cap  10  to the exhaust duct  35  together. 
     The exhaust duct  35  has a structure in which a length thereof is changed to correspond to the adjustment of a location of the seat  20 . For example, as shown in  FIG.  6    to 7B, a plurality of ducts  35   a ,  35   b  are configured to be connected in a telescopic manner, so that the seat  20  is reduced in length when moving backward and the seat  20  is increased in length when moving forward thereof.  FIG.  6    to 7B show an example in which the exhaust duct  35  includes a front duct  35   a  and a rear duct  35   b . As described above, the length of the exhaust duct  35  is changed, so that the air heated by solar radiation or the heating surface  31   ab  is discharged to the outside through the exhaust duct  35  and the vent grill  12  without being circulated into the cap  10 . Therefore, the internal temperature of the cap  10  is rapidly reduced by the air passing through the cooling surface  31   aa . 
     A control panel  41  can allow the passenger to set whether the system according to an exemplary embodiment of the present disclosure is used. A cluster, a navigation, an Audio, Video, and Navigation (AVN), etc. of the vehicle may be the control panel  41 . The control panel  42 , may be set, whether various devices of the vehicle including an air conditioner are used, the predetermined settings, etc., by the user setting mode (USM). The passenger sets whether to use the system according to an exemplary embodiment of the present disclosure through the control panel  41 . 
     An operation switch  42  sets whether the first blower  31  and the second blower  32  are operated when the driver leaves the vehicle after the vehicle is parked and the engine is turned off. The operation switch  42  is provided on one side of the cap  10 , and can also select blowing amounts of the first blower  31  and the second blower  32 . 
     A temperature sensor  43  is provided on one side of the cap  10  to measure the temperature in the cap  10 , that is, the internal temperature (Ti) of the vehicle. 
     A battery  44  supplies an electric power required for operating the first blower  31  and the second blower  32 . The battery  44  is configured to supply the electric power required for electric parts of the vehicle in a state where the engine is turned on or the key is ON, and according to an exemplary embodiment of the present disclosure, also supplies the electric power required for operating the first blower  31  and the second blower  32  even in the state where the engine is turned off. 
     The control unit  50  receives signals from the control panel  41 , the operation switch  42 , and the temperature sensor  43 , and determines whether the first blower  31  and the second blower  32  are operated. Furthermore, the control unit  50  controls the electric power to be supplied to the first blower  31  and the second blower  32  from the battery  44  if the operations of the first blower  31  and the second blower  32  are required. The control unit  50  is also connected to a telematics system and therefore, can control the first blower  31  and the second blower  32  to be operated when the operations thereof are remotely requested. 
     The control unit  50  stores, as a logic, a method for controlling the internal temperature of the vehicle when the engine is turned off to be described later, and therefore, performs the method for controlling the internal temperature of the vehicle when the engine is turned off. 
     Furthermore, because the control unit  50  should be operated even in the state where the engine of the vehicle is turned off, the electric power is always supplied to the control unit  50 , regardless of engine turning on. 
     Meanwhile,  FIG.  8    shows an exemplary embodiment of the method for controlling the internal temperature of the vehicle when the engine is turned off according to an exemplary embodiment of the present disclosure. 
     The method for controlling the internal temperature of the vehicle when the engine is turned off according to an exemplary embodiment of the present disclosure is performed by the system for controlling the internal temperature of the vehicle when the engine is turned off as described above. 
     Turning on an USM (S 100 ) turns on the user setting mode (USM) of the vehicle. When the key is in an ON state (state where the key operation of the vehicle is located at ON through the ACC) by the driver of the vehicle, the electric power is supplied to the vehicle. 
     Determining whether an engine is turned on (S 110 ) determines whether the engine of the vehicle has been turned on. Because the control devices may be activated and operated when the engine is turned on (state where the vehicle’s key is located at ON and the engine is turned on), the system for controlling the internal temperature of the vehicle when the engine is turned off may be used, later. Therefore, the determining of whether the engine is turned on (S 110 ) determines whether the engine is turned on. 
     Determining whether the control unit is operated (S 120 ) determines whether the control unit  50  is normally operated. When the control unit  50  is not normally operated, each of the subsequent steps cannot be normally performed, and therefore, the determining whether the control unit is operated (S 120 ) determines whether the control unit  50  is normally operated. 
     The turning on of the USM (S 100 ) to the determining of whether the control unit is operated (S 120 ) determines whether the vehicle and the system for controlling the internal temperature of the vehicle when the engine is turned off according to an exemplary embodiment of the present disclosure are operated normally so that the method for controlling the internal temperature of the vehicle when the engine is turned off is performed. 
     When the determining of whether the engine is turned on (S 110 ) and the determining of whether the control unit is operated (S 120 ) are all satisfied, each of the subsequent steps is performed, and when any one thereof is not satisfied, the method returns to the step prior to the determining of whether the engine is turned on (S 110 ). 
     Turning off the engine (S 130 ) turns off the engine of the vehicle. For the driver to park and then leave the vehicle, the engine of the vehicle is turned off. When the engine is turned off, the state where the engine is turned off may be input from an engine management system (EMS), etc. to the control unit  50 . 
     Meanwhile, the turning on of the USM (S 100 ) to the determining of whether the control unit is operated (S 120 ) are performed prior to the state where the engine is turned off, that is, the state where the engine is turned on, and therefore, the performed result is stored in the control unit  50 . 
     Detecting an operation switch (S 140 ) detects whether the operation switch  42  is set as ON. The control unit  50  detects a state of the operation switch  42  to perform each step to be described later. If the operation switch  42  is set as ON, the first blower  31  and the second blower  32  are operated when the internal temperature (Ti) is high. 
     Otherwise, when the operation switch  42  is set as OFF, the driver does not want to operate the first blower  31  and the second blower  32  even if the internal temperature (Ti) rises in the state where the vehicle is parked and then the engine is turned off, and therefore, each step after the detecting of the operation switch (S 140 ) is not performed, and releasing a control of the temperature (S 190 ) is immediately performed to finish the logic. 
     Waiting for an electric power (S 150 ) allows the battery  44  to be in a state where the electric power may be supplied when the operation switch  42  is set as ON. When the state of the operation switch  42  is detected as ON, the control unit  50  controls the battery  44  to be in a state of being able to supply the electric power so that the first blower  31  and the second blower  32  are immediately operated depending upon the internal temperature (Ti). 
     Comparing temperatures (S 160 ) compares whether the internal temperature (Ti) of the interior of the vehicle is equal to or greater than a reference temperature (Tr) which is set so that the first blower  31  is operated. The control unit  50  compares the internal temperature (Ti) measured by the temperature sensor  43  with the reference temperature (Tr) set to operate the first blower  31  to determine whether the first blower  31  and the second blower  32  are operated. 
     Operating a blower (S 170 ) operates the first blower  31  by supplying the electric power of the battery  44  to the first blower  31  when the internal temperature (Ti) is equal to or greater than the reference temperature (Tr). When the internal temperature (Ti) is equal to or greater than the reference temperature (Tr), the control unit  50  operates the first blower  31  by supplying the electric power of the battery  44  to the first blower  31 . When the first blower  31  is operated, the electric power is also supplied to the Peltier element  31   a  provided on the first blower  31  in addition to being blown through the first blower  31 , so that a part of the air discharged from the first blower  31  is cooled and the rest is heated. 
     Meanwhile, in the operating of the blower (S 170 ), when the control unit  50  operates the first blower  31 , the electric power is also applied to the second blower  32  so that the second blower  32  is also operated together. 
     When the first blower  31  and the second blower  32  are operated, cooling the indoor and discharging air (S 180 ) is performed. When the first blower  31  and the second blower  32  are operated, as shown in  FIGS.  3 A and  3 B , the air flows into the cap  10  to reduce the temperature in the cap  10 , that is, the internal temperature (Ti) of the vehicle. The outside air flows in the cap  10  when flowing into the cap  10  through the front vent  11 . Thereafter, the outside air flows into the first blower  31 , and a part thereof coming from the first blower  31  is discharged toward the headrest  23  (C) and the rest is discharged to the connection duct  34  (D). The air discharged to the headrest  23  is supplied into the cap  10  through the vent  23   a  formed on the headrest  23 , and this is the air cooled by the Peltier element  31   a , reducing the internal temperature (Ti). Meanwhile, the air discharged from the first blower  31  to the connection duct  34  flows into the second blower  32 . Furthermore, the air in the cap  10  also flows into the second blower  32  (E). The air flowing into the second blower  32  is the air heated by solar radiation or heated by the Peltier element  31   a , and exhausted from the second blower  32  to the exhaust duct  35  (F). Thereafter, the high-temperature air is discharged to the outside through the vent grill  12  (G). 
     As described above, when the first blower  31  and the second blower  32  are operated, the internal temperature (Ti) of the vehicle is reduced by the air passing through the cooling surface  31   a  of the Peltier element  31   a  as the outside air is introduced from the outside of the vehicle. Furthermore, the high-temperature internal air and the air passing through the heating surface  31   ab  of the Peltier element  31   a  are not distributed, not mixed with the internal air through the connection duct  34  and the exhaust duct  35 , and discharged to the outside, efficiently reducing the internal temperature of the vehicle. 
     Thereafter, the releasing of the control of the temperature (S 190 ) that interrupts the operations of the first blower  31  and the second blower  32  is performed. 
     Meanwhile, after the cooling the indoor and discharging the air (S 180 ), the releasing of the control of the temperature (S 190 ) may be performed, but the first blower  31  and the second blower  32  may be continuously operated until the internal temperature (Ti) is equal to or greater than the reference temperature (Tr) by returning to the comparing of the temperatures (S 160 ). 
     A method for controlling the internal temperature of the vehicle when the engine is turned off according to another exemplary embodiment of the present disclosure will be described as follows with reference to  FIG.  9   . 
     The method for controlling the internal temperature of the vehicle when the engine is turned off according to the exemplary embodiment of the present disclosure is also performed by the system for controlling the internal temperature of the vehicle when the engine is turned off as described above. 
     Furthermore, the method for controlling the internal temperature of the vehicle when the engine is turned off according to the exemplary embodiment of the present disclosure is similar to the method for controlling the internal temperature of the vehicle when the engine is turned off according to the aforementioned exemplary embodiment of the present disclosure, and the driver does not set in advance whether to operate the system using the operation switch  42  before leaving the vehicle, but remotely asks the operation. 
     Turning on the USM (S 200 ), determining whether the engine is turned on (S 210 ), determining whether the control unit is operated (S 220 ), and turning off the engine (S 230 ) according to the exemplary embodiment of the present disclosure are the same as the turning on of the USM (S 100 ) to the turning off the engine (S 130 ) according to the aforementioned exemplary embodiment of the present disclosure. 
     Determining whether a remote control is requested (S 240 ) performed later determines whether the control of the internal temperature (Ti) of the vehicle has been remotely requested through a telematics service. Because the control unit  50  is connected to the telematics system, the control unit  50  determines whether the operations of the first blower  31  and the second blower  32  have been requested at a remote location by the driver who is away therefrom using a terminal such as a smart phone. 
     When the driver requests the operations of the first blower  31  and the second blower  32  at the remote location, waiting for an electric power (S 250 ) is performed. 
     If the driver does not request the operations of the first blower  31  and the second blower  32 , releasing a control of the temperature (S 290 ) is immediately performed to finish a logic. Alternatively, even if the driver does not request the operations of the first blower  31  and the second blower  32 , there may be the request after that, and therefore, the determining of whether the remote control is requested (S 240 ) can also be repetitively performed. 
     In the determining of whether the remote control is requested (S 240 ), when the driver requests the operations of the first blower  31  and the second blower  32 , the waiting for the electric power (S 250 ), comparing temperatures (S 260 ), operating a blower (S 270 ), and cooling the indoor and discharging air (S 280 ) are performed. Because the waiting for the electric power (S 250 ) to the cooling the indoor and discharging the air (S 280 ) according to the exemplary embodiment of the present disclosure are the same as the waiting for the electric power (S 150 ) to the cooling the indoor and discharging the air (S 180 ) according to the aforementioned exemplary embodiment of the present disclosure, a detailed description thereof will be omitted. 
     After the cooling the indoor and discharging the air (S 280 ), the releasing of the control of the temperature (S 290 ) that interrupts the operations of the first blower  31  and the second blower  32  is performed. 
     Meanwhile, by also returning to the cooling the indoor and discharging the air (S 280 ) in the exemplary embodiment of the present disclosure, the first blower  31  and the second blower  32  may be continuously operated when the internal temperature (Ti) is equal to or greater than the reference temperature (Tr). 
     Furthermore, the term related to a control device such as “controller”, “control apparatus”, “control unit”, “control device”, “control module”, or “server”, etc refers to a hardware device including a memory and a processor configured to execute one or more steps interpreted as an algorithm structure. The memory stores algorithm steps, and the processor executes the algorithm steps to perform one or more processes of a method in accordance with various exemplary embodiments of the present disclosure. The control device according to exemplary embodiments of the present disclosure may be implemented through a nonvolatile memory configured to store algorithms for controlling operation of various components of a vehicle or data about software commands for executing the algorithms, and a processor configured to perform operation to be described above using the data stored in the memory. The memory and the processor may be individual chips. Alternatively, the memory and the processor may be integrated in a single chip. The processor may be implemented as one or more processors. The processor may include various logic circuits and operation circuits, may process data according to a program provided from the memory, and may generate a control signal according to the processing result. 
     The aforementioned invention can also be embodied as computer readable codes on a computer readable recording medium. The computer readable recording medium is any data storage device that can store data which may be thereafter read by a computer system and store and execute program instructions which may be thereafter read by a computer system. Examples of the computer readable recording medium include Hard Disk Drive (HDD), solid state disk (SSD), silicon disk drive (SDD), read-only memory (ROM), random-access memory (RAM), CD-ROMs, magnetic tapes, floppy discs, optical data storage devices, etc and implementation as carrier waves (e.g., transmission over the Internet). Examples of the program instruction include machine language code such as those generated by a compiler, as well as high-level language code which may be executed by a computer using an interpreter or the like. 
     In various exemplary embodiments of the present disclosure, each operation described above may be performed by a control device, and the control device may be configured by a plurality of control devices, or an integrated single control device. 
     In various exemplary embodiments of the present disclosure, the control device may be implemented in a form of hardware or software, or may be implemented in a combination of hardware and software. 
     The scope of the present disclosure includes software or machine-executable commands (e.g., an operating system, an application, firmware, a program, etc.) for facilitating operations according to the methods of various embodiments to be executed on an apparatus or a computer, a non-transitory computer-readable medium including such software or commands stored thereon and executable on the apparatus or the computer. 
     Furthermore, the terms such as “unit”, “module”, etc. Included in the specification mean units for processing at least one function or operation, which may be implemented by hardware, software, or a combination thereof. 
     For convenience in explanation and accurate definition in the appended claims, the terms “upper”, “lower”, “inner”, “outer”, “up”, “down”, “upwards”, “downwards”, “front”, “rear”, “back”, “inside”, “outside”, “inwardly”, “outwardly”, “interior”, “exterior”, “internal”, “external”, “forwards”, and “backwards” are used to describe features of the exemplary embodiments with reference to the positions of such features as displayed in the figures. It will be further understood that the term “connect” or its derivatives refer both to direct and indirect connection. 
     The foregoing descriptions of predetermined exemplary embodiments of the present disclosure have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present disclosure to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teachings. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and their practical application, to enable others skilled in the art to make and utilize various exemplary embodiments of the present disclosure, as well as various alternatives and modifications thereof. It is intended that the scope of the present disclosure be defined by the Claims appended hereto and their equivalents.