KR102040764B1 - Air conditioning system for automotive vehicles - Google Patents

Abstract

The present invention relates to a vehicle air conditioner, and even when the engine is turned off, the engine is configured to be turned on when it is determined that the user wants to cool or heat the vehicle. Regardless of the OFF (OFF), the interior of the vehicle can be cooled and heated, thereby improving the comfort of the interior.
In order to achieve the above object, the present invention provides a blower for sucking and blowing air into and out of a vehicle, an evaporator of an air conditioner for cooling air blown into a vehicle with refrigerant supplied from an electric compressor, and electric power applied thereto. A vehicle air conditioner comprising a heater for heating air blown into a vehicle while operating, and a blower, an electric compressor, and a battery for providing electricity to the heater, wherein the user of the vehicle is turned off when the vehicle is turned off. When the audio device is turned on, the blower, the electric compressor, and the heater are switched to an operational state while entering the cooling and heating preparation mode; In the cooling and heating preparation mode, the user enters the cooling and heating mode in the cooling and heating preparation mode as the user turns on the air conditioner to turn on at least one of the blower, the electric compressor, and the heater. It is provided with a control unit for cooling and heating the room.

Description

Air Conditioning System for Vehicles {AIR CONDITIONING SYSTEM FOR AUTOMOTIVE VEHICLES}

The present invention relates to a vehicle air conditioner, and more particularly, to be configured to be turned on (ON) when it is determined that the user wants to cool or heat the vehicle even when the engine is turned off. Accordingly, the present invention relates to a vehicle air conditioner capable of cooling and heating an interior of a vehicle regardless of engine start-off, thereby improving comfort in the vehicle interior.

The hybrid vehicle is provided with an air conditioner for cooling and heating the interior of the vehicle. As shown in FIG. 1, the air conditioner includes an air conditioner case 1, and the air conditioner case 1 includes a blower 3, an evaporator 5 of the air conditioner, and a heater 7.

The blower 3 sucks inside and outside air and blows the sucked inside and outside air into the inner passage 1a of the air conditioning case 1.

The evaporator 5 of the air conditioner heat-exchanges the refrigerant supplied from the electric compressor 5a and the air of the inner passage 1a of the air conditioning case 1. Therefore, the air blown into the interior of the vehicle is cooled to cool the interior of the vehicle.

The heater 7 is generally composed of an electric heater, for example, a PTC temperature (Positive Temperature Coefficient Heater), and is operated by electricity applied from the battery 7a, while the inner passage 1a of the air conditioning case 1 is operated. ) Heat the air. Therefore, the air blown into the vehicle interior is heated to heat the interior of the vehicle interior.

However, such a conventional air conditioner has a disadvantage in that the engine (not shown) does not operate when the engine is turned off (OFF). Due to this disadvantage, the user is in the vehicle interior while the engine is turned off. If you want cooling and heating, there is a problem that can not cope with this.

For example, if you watch a movie for a long time in a car theater or in a cabin while you are in a car, you have to turn off the engine to reduce fuel consumption and reduce emissions. In addition, even if the user wants to cool and heat the interior of the vehicle, there is a problem in that the interior of the engine cannot be cooled and heated because the engine is off.

In addition, due to these drawbacks, the comfort in the interior is lowered, and as a result, a drawback is pointed out that the satisfaction of the vehicle consumer is lowered.

The present invention has been made to solve the above-described conventional problems, the object of the present invention is to turn on when it is determined that the user wants the cooling and heating in the cabin even when the engine is off (OFF) state, (ON) To provide a vehicle air conditioner that can be operated.

Another object of the present invention, even if the engine is turned off (OFF), when the user determines that the situation desired to cool and heat in the cabin, it is configured to be turned on (ON), so that the start of the engine The present invention provides an air conditioner for a vehicle that can cool and heat an interior of a vehicle, even in an OFF state.

Another object of the present invention is to configure the vehicle to cool and heat the interior of the vehicle, if necessary, even when the engine is turned off. It is possible to improve, and through this, to provide a vehicle air conditioner that can improve the customer satisfaction.

In order to achieve this object, a vehicle air conditioner according to the present invention, a blower for sucking the internal and external air and blowing it into the cabin, and an evaporator of the air conditioner to cool the air blown into the cabin with the refrigerant supplied from the electric compressor A vehicle air conditioner, comprising: a heater for heating air blown into a vehicle while operating by applied electricity, and a battery for providing electricity to the blower, the electric compressor, and the heater, the starting of the vehicle being turned off. When the user turns on the audio device of the vehicle, the blower, the electric compressor, and the heater are switched to an operational state while entering a cooling / heating preparation mode; In the cooling and heating preparation mode, when the user turns on the air conditioner, the cooling and heating preparation mode is entered into the cooling and heating mode, and at least one of the blower, the electric compressor, and the heater is turned on. It characterized in that it comprises a control unit for cooling and heating the vehicle interior.

Preferably, when the controller enters the cooling and heating mode, the controller determines that the temperature inside the vehicle is a condition to be cooled when the internal temperature of the vehicle is greater than or equal to a user preset temperature. When the inside temperature of the vehicle is less than the user set temperature, it is determined that the temperature in the vehicle is a condition to be heated, and enters the heating mode.

The controller may be configured to turn on the electric compressor of the air conditioner when the outside air temperature outside the vehicle interior is greater than or equal to the user set temperature when entering the cooling mode. Turning on only the blowers without the motor-compressor; Upon entering the heating mode, the heater is turned on when the outside air temperature outside the vehicle interior is less than the user setting temperature. When the outside air temperature outside the vehicle room is above the user setting temperature, the heater is excluded and only the blower is turned on. ON).

The controller may be configured not to enter the cooling / heating preparation mode even when the audio device is turned on when the vehicle is turned off when the amount of charge of the battery is less than or equal to a predetermined reference charge. When the charge amount of the battery falls below the standard charging amount in the process of limiting the operation of the air conditioning apparatus and cooling and heating the interior of the vehicle after entering the cooling and heating mode, the air conditioner is released from the cooling and heating mode. It is characterized in that the air conditioning device forcibly turns off.

According to the air conditioner for a vehicle according to the present invention, even when the engine is off (OFF), if it is determined that the user wants to cool and heat the interior of the vehicle, it is a structure that can be turned on (ON), so starting the engine Even in this OFF state, the interior of the vehicle can be cooled and heated as needed.

In addition, since the interior of the vehicle can be cooled and heated as needed even when the engine is turned off, the comfort of the interior of the vehicle can be improved regardless of the engine's start-off. This has the effect of improving satisfaction.

In addition, while the engine is turned off, the cabin is cooled and heated as needed, but the cabin is cooled and heated while consuming minimal energy. There is an effect that can improve the comfort.

1 is a view showing a conventional vehicle air conditioner,
2 is a view showing the configuration of a vehicle air conditioner according to the present invention;
3A and 3B are flowcharts showing an example of the operation of the vehicle air conditioner according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a vehicle air conditioner according to the present invention will be described in detail with reference to the accompanying drawings (the same components will be described with the same reference numerals).

First, before looking at the features of the vehicle air conditioner according to the present invention, a brief description of the vehicle air conditioner with reference to FIG.

The air conditioning apparatus includes an air conditioning case 1, and the air conditioning case 1 is provided with a blower 3, an evaporator 5 of an air conditioner, and a heater 7.

The blower 3 sucks inside and outside air and blows the sucked inside and outside air into the inner passage 1a of the air conditioning case 1.

The evaporator 5 of the air conditioner heat-exchanges the refrigerant supplied from the electric compressor 5a and the air of the inner passage 1a of the air conditioning case 1. Therefore, the air blown into the interior of the vehicle is cooled to cool the interior of the vehicle.

The heater 7 is usually composed of a PTC heater, and heats the air of the inner passage 1a of the air conditioning case 1 while operating by electricity applied from the battery 7a. Therefore, the air blown into the vehicle interior is heated to heat the interior of the vehicle interior.

Next, the features of the vehicle air conditioner according to the present invention will be described in detail with reference to FIGS. 2 and 3.

First, referring to FIG. 2, the air conditioner of the present invention includes a start-off detecting means 10 that detects whether the vehicle is turned off.

The start-off detecting means 10 is constituted by a start switch (not shown) of the vehicle. The start switch configured in this way outputs a "start off signal S1" when the driver turns off the vehicle. To the control unit 30 to be described later.

In addition, the air conditioner of the present invention includes an audio operation detecting means 20 for detecting whether the audio device of the vehicle is in an ON state.

The audio operation detecting means 20 is composed of an audio on / off switch (not shown). When the user operates to turn on the audio device, the audio on / off switch is configured as “audio operation signal”. (S2) ", and inputs the output" audio operation signal S2 "to the control part 30 mentioned later.

Here, the audio device may be turned on even when the user wants to listen to a radio, CD, MP3, etc. in a car, but also listens to the sound of the movie when watching a movie in a car theater or when watching a movie through a display unit. It can also be turned on.

In particular, when watching a movie by wirelessly connecting an external device (mobile phone, external hard drive) and the display unit in a vehicle by Bluetooth, the audio device may be turned on to listen to the sound of the movie displayed on the display unit. do.

The air conditioner of the present invention includes a control unit 30.

The control unit 30 is equipped with a microprocessor. When the start-off signal S1 and the audio operation signal S2 are simultaneously input from the start-off detecting means 10 and the audio operation detecting means 20, At present, the vehicle is turned off, but a person in the cabin is driving the audio device. Thus, even though the engine is turned off, the passenger of the vehicle We believe that you may want to cool and heat the room.

When the determination is made, the control unit 30 enters the "cooling and heating preparation mode 32", and the control unit 30 entering the "cooling and heating preparation mode 32" operates the air conditioning apparatus ( ON) to prepare.

On the other hand, the control unit 30, when the passengers in the vehicle enters the "cooling, heating preparation mode 32," when the air conditioner on switch (On Switch) 40 (ON), the user It is determined that the indoor cooling and heating is desired, and enters the "cooling and heating mode 34".

And the control part 30 which entered into the "cooling and heating mode 34" turns ON an air conditioning apparatus. In particular, the blower 3, the motor-driven compressor 5a, and the PTC heater 7 are operated. Therefore, cold and hot air can be supplied to the vehicle interior.

As a result, the interior of the vehicle can be cooled and heated even though the engine is turned off. As a result, comfort in the vehicle interior is improved even though the engine is in an OFF state.

This allows passengers in the vehicle cabin to watch a movie on the car theater or in the vehicle display unit in a comfortable state regardless of the engine OFF.

Here, the air conditioner on switch 40 is preferably composed of a specific switch, for example, a blower switch, among the switches of the air conditioner control controller installed in the front of the driver's seat.

On the other hand, the control unit 30 operates the blower 3, the electric compressor 5a and the PTC heater 7 at the time of entering the "cooling and heating mode 34" through the temperature control switch 42. Considering the input " user set temperature ", " outer temperature " input from the outside air sensor 44, and " beting temperature " input from the inside air sensor 46, whether the interior of the cabin is to be cooled or heated. After the determination, it is configured to selectively control the blower 3, the motor-driven compressor 5a, and the PTC heater 7 based on this.

That is, the control unit 30, when entering the "cooling, heating mode 34", the "user temperature" in the vehicle interior input from the bet sensor 46, the "user" input from the temperature control switch 42 If the temperature is greater than or equal to the set temperature, it is determined that the vehicle interior is a condition to be cooled because the interior is hot.

When the determination is made, the controller 30 enters the "cooling mode", where the "outside air temperature" input from the outside air sensor 44 is input to the "user setting" input from the temperature control switch 42. Temperature "or more, it is determined that the air conditioner must be turned on because both the interior and the outside of the vehicle are very hot compared to the" user set temperature ".

In accordance with this determination, the electric compressor 5a of the air conditioner is turned ON. As a result, cold air is generated in the evaporator 5, and the generated cold air is supplied into the vehicle compartment, thereby allowing the interior of the vehicle compartment to be cooled.

On the contrary, when entering the "cooling mode", if the "outside air temperature" other than the cabin inputted by the outside air sensor 44 is less than the "user set temperature" inputted by the temperature control switch 42, the interior of the cabin may be It's hot, but the temperature outside the car is low, so I don't think I need to turn on the air conditioner. Then, only the blower 3 is turned on according to this judgment. As a result, the cool air outside the vehicle cabin is blown into the vehicle cabin through the blower 3 to cool the vehicle interior.

In addition, when the controller 30 enters the "cooling and heating mode 34", the control unit 30 inputs the "user temperature" in the vehicle interior input from the bet sensor 46 to the "user setting" input from the temperature control switch 42. Temperature ", it is determined that it is a condition to be heated because the interior of the vehicle is cold.

When the determination is made, the controller 30 enters the "heating mode", in which the "outside air temperature" input from the outside air sensor 44 is input to the "user setting" input from the temperature control switch 42. Temperature ", it is determined that the heater 7 must be turned on because both the inside and the outside of the vehicle are very cold compared to the" user set temperature ".

Then, the heater 7 is turned on according to this determination. As a result, heat is generated in the heater 7, and the generated heat is supplied to the vehicle compartment, thereby enabling heating of the vehicle compartment.

On the contrary, when the "heating mode" is entered, if the "outside air temperature" other than the cabin inputted from the outside air sensor 44 is equal to or greater than the "user set temperature" inputted from the temperature control switch 42, the interior of the cabin may be Although it is cold, it is judged that it is not necessary to turn ON the heater 7 because the temperature outside the vehicle interior is high.

Then, only the blower 3 is turned on according to this judgment. As a result, the outside air of a higher temperature than the air in the car is blown through the blower 3 to the inside of the car, thereby enabling heating of the car interior.

The reason for selectively controlling the blower 3, the motor compressor 5a, and the PTC heater 7 in consideration of the magnitudes of the "user set temperature", the "outer temperature" and the "bet temperature" is as follows. And to minimize the operation of the heater 7.

The reason for minimizing the operation of the air conditioner and the heater 7 is to minimize the consumption of the battery 7a as much as possible so as not to interfere with the energy consumption of the vehicle.

On the other hand, the control unit 30 is configured to display such a series of air conditioning device control process on the display unit 50 of the controller for air conditioning device control. Therefore, the user can determine the operating state of the air conditioning apparatus.

Referring back to FIG. 2, the controller 30 erases the "audio operation signal S2" input from the audio operation detecting means 20 while entering the "cooling and heating mode 34". (Iii) If it is determined that the passenger of the vehicle no longer desires cooling and heating in the cabin.

When the determination is made, the controller 30 turns off the air conditioner while being released in the "cooling and heating mode 34". Therefore, cooling and heating in the vehicle interior are stopped.

2, the air conditioner of the present invention further includes a battery charge sensor 60.

The battery charge sensor 60 detects the charge of the battery and inputs the detected “battery charge data” to the controller 30.

On the other hand, when the "battery charge amount data" is input from the battery charge amount sensor 60, the controller 30 determines whether the input "battery charge amount" is less than or equal to the preset "reference charge amount".

As a result of the determination, when the reference charge amount is less than or equal to, the controller 30 recognizes that the charge amount of the battery 7a is very small, and determines that the air conditioning apparatus needs to be limited.

And according to this judgment, the air conditioning apparatus is controlled. In particular, the "start-off signal S1" and the "audio operation signal S2" are simultaneously input from the start-off detection means 10 and the audio operation detection means 20, and the user turns on the air conditioner on switch 40. Even when the air conditioner is turned on, the operation of the air conditioner is completely blocked.

This prevents the discharge of the battery 7a due to the operation of the air conditioner, and as a result, prevents the "charge amount" of the battery 7a from being excessively lowered.

On the other hand, the control unit 30, after entering the "cooling, heating mode 34", in the process of operating (ON) the air conditioning device, when the charge amount of the battery 7a is lowered to "standard charge amount" or less It is configured to forcibly turn off the air conditioner while being released from the "cooling and heating mode 34." Therefore, the cooling and heating in the cabin are forcibly stopped.

This prevents the discharge of the battery 7a due to the operation of the air conditioner, and as a result, prevents the "charge amount" of the battery 7a from excessively lowering in advance.

On the other hand, the control unit 30 is configured to display such an air conditioner OFF state on the display unit 50 of the air conditioner control controller. Therefore, it is possible for the user to grasp the OFF state of the air conditioning apparatus.

Next, an operation example of the air conditioner having such a configuration will be described with reference to FIGS. 2, 3A, and 3B.

First, referring to FIGS. 3A and 3B, it is determined whether the vehicle is started (OFF) (S101).

As a result of the determination, if the vehicle is turned off, it is again determined whether the audio device of the vehicle is in an on state (S103).

As a result of the determination, if the audio device is in an ON state, it is again determined whether the charging amount of the battery 7a is equal to or less than the “standard charging amount” (S105).

As a result of the determination, if the reference charge amount or less, the operation (ON) of the air conditioning apparatus is restricted (S107). This interrupts the discharge of the battery 7a.

On the other hand, when the determination result, if the charge amount of the battery 7a is not less than the "standard charge amount" (S105-1), that is, exceeds the "reference charge amount", the control unit 30, the "cooling, heating preparation mode 32 "To enter (S109).

Then, the control unit 30 having entered the "cooling and heating preparation mode 32" determines again whether the user turned on the air conditioner (S111).

As a result of the determination, when the user turns on the air conditioner, the control unit 30 determines again whether the "betting temperature" in the vehicle room is equal to or more than the "user setting temperature" (S113).

As a result of the determination, if the "betting temperature" is equal to or greater than the "user set temperature", the controller 30 determines that the temperature in the vehicle room is a condition to cool down and enters the "cooling mode" (S115).

Then, the control unit 30 that has entered the "cooling mode" determines again whether the "outside air temperature" outside the vehicle interior is "user set temperature" or more (S117).

As a result of the determination, if the "outside air temperature" is equal to or greater than the "user set temperature", the controller 30 recognizes that the air conditioner should be turned on because the inside and outside of the vehicle are very hot, and the electric compressor 5a is turned on. (S119).

Then, cold air is generated in the evaporator 5, and the generated cold air is supplied to the interior of the vehicle to cool the interior of the vehicle (S121).

On the other hand, when the determination result indicates that the "outside temperature" is not more than the "user set temperature" (S117-1), that is, the "outside temperature" is less than the "user set temperature", the control unit 30 becomes hot inside the vehicle. Recognizing that it is not necessary to turn on the air conditioner since the temperature outside the vehicle interior is low, only the blower 3 is turned on according to this recognition (S123).

Then, while the cool air outside the vehicle is blown into the vehicle interior through the blower (3) to cool the vehicle interior (S121).

In operation S113, when the determination result indicates that the “betting temperature” is not greater than or equal to the “user set temperature” (S113-1), that is, if the “betting temperature” is less than the “user set temperature”, the control unit 30 may include: It is determined that the temperature in the vehicle is a condition to be heated to enter the "heating mode" (S125).

The controller 30 which has entered the "heating mode" again determines whether the "outside air temperature" outside the vehicle interior is less than the "user set temperature" (S127).

As a result of the determination, if the "outside temperature" is less than the "user set temperature", the controller 30 recognizes that the heater 7 needs to be turned on because the inside and the outside of the vehicle are very cold, and turns on the heater 7. (ON) (S129).

Then, heat is generated in the heater 7, and the generated heat is supplied to the interior of the vehicle to heat the interior of the vehicle (S131).

On the other hand, if it is determined that the "outside temperature" is not less than the "user set temperature" (S127-1), that is, if the "outside temperature" is more than the "user set temperature", the controller 30 is cold inside the vehicle. Recognizing that it is not necessary to turn on the heater 7 since the vehicle exterior temperature is high, only the blower 3 is turned on according to the recognition (S133).

Then, while the outside air of a higher temperature than the air in the vehicle is blown into the inside of the vehicle through the blower (3) (S131).

According to the air conditioner of the present invention having such a configuration, even when the engine is turned off (OFF), if it is determined that the user wants the cooling and heating in the cabin, it is a structure that can be operated (ON), Even when the engine is turned off, the interior of the vehicle can be cooled and heated as needed.

In addition, since the interior of the vehicle can be cooled and heated as needed even when the engine is turned off, the comfort of the interior of the vehicle can be improved regardless of the engine's start-off. Satisfaction can be improved.

In addition, while the engine is turned off, the cabin is cooled and heated as needed, but the cabin is cooled and heated while consuming minimal energy. Can improve the comfort.

Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope of the claims.

1: Air Conditioning Case (Case) 3: Blower
5: evaporator 5a; Motorized compressor
7: Heater 7a: Battery
10: start off detection means 20: audio operation detection means
30: control unit 32: cooling, heating preparation mode
34: cooling / heating mode 40: air conditioner On Switch
42: temperature control switch 44: air sensor
46: bet sensor
50: display unit of the air conditioner controller
60: battery charge sensor

Claims (6)

Blower (3) that sucks the inside and outside air and blows it into the cabin, the evaporator (5) of the air conditioner that cools the air blown into the cabin with the refrigerant supplied from the electric compressor (5a), and is operated by the applied electricity In the vehicle air conditioner comprising a heater (7) for heating the air blown into the vehicle, and a battery (7a) for providing electricity to the blower (3), the electric compressor (5a) and the heater (7),
When the user turns on the audio device of the vehicle while the vehicle is turned off, the blower 3, the electric compressor 5a, and the heater enter the cooling and heating preparation mode 32. Switch (7) to an operational state;
In the cooling and heating preparation mode 32, as the user turns on the air conditioner, the blower 3 enters the cooling and heating mode 34 from the cooling and heating preparation mode 32. A control unit 30 for cooling and heating the interior of the vehicle by turning on at least one of the electric compressor 5a and the heater 7;
The control unit 30,
When the user turns off the audio device in a state of cooling and heating the vehicle interior after entering the cooling and heating mode 34, the air conditioner is turned off while being released from the cooling and heating mode 34. (OFF) structure;
A structure for displaying the entering and releasing states of the cooling and heating preparation mode 32 and the cooling and heating mode 34 and the air conditioning apparatus off state with a specific symbol on the display unit 50 of the air conditioning controller. Vehicle air conditioner, characterized in that. The method of claim 1,
The control unit 30,
Upon entering the cooling / heating mode 34, if the indoor temperature of the vehicle is greater than or equal to a user-set temperature previously set by the user, it is determined that the temperature in the vehicle is a condition to be cooled and enters the cooling mode.
If the indoor temperature is less than the user set temperature, it is determined that the temperature in the interior is a condition to heat the vehicle air conditioner, characterized in that entering the heating mode. The method of claim 2,
The control unit 30,
Upon entering the cooling mode, the motor-driven compressor 5a of the air conditioner is turned on if the outside air temperature outside the vehicle interior is equal to or greater than the user set temperature, and the motor-driven compressor if the outside air temperature outside the vehicle interior is less than the user set temperature. Turning on only the blower 3, excluding 5a;
Upon entering the heating mode, the heater 7 is turned on when the outside air temperature outside the vehicle interior is less than the user set temperature, and the heater 7 when the outside air temperature outside the vehicle interior is above the user set temperature. Excluding and turning on only the blower (3). The method of claim 3, wherein
The control unit 30,
When the charge amount of the battery 7a is less than or equal to a preset reference charge amount, the vehicle is configured not to enter the cooling / heating preparation mode 32 even when the audio device is turned on while the vehicle is turned off. To limit the operation of the air conditioner,
When the charging amount of the battery 7a falls below the standard charging amount in the process of cooling and heating the interior of the vehicle after entering the cooling and heating mode 34, the cooling and heating mode 34 is released from the cooling and heating mode 34. A vehicle air conditioner, characterized in that the structure forcibly turning off the air conditioner. delete delete

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