KR102209212B1 - Air conditioning system for automotive vehicles - Google Patents

Abstract

The present invention relates to an air conditioner for a vehicle, and is configured to predict an actual "in-vehicle temperature" through a preset "calculation logic" at the initial start of the vehicle. Even though the indoor temperature cannot be detected, the actual "in-vehicle temperature" can be secured, and through this, the object of the present invention is to ensure the comfort of the vehicle interior at the initial start of the vehicle.
In order to achieve this object, the present invention provides an air conditioner for a vehicle including a control unit for controlling an air conditioner based on a temperature value input from an In-Car Sensor, wherein the control unit has an effect on the temperature inside the vehicle. Calculates the in-car sensor temperature compensation value of the temperature value input from the in-car sensor in consideration of the factors giving, and calculates the final correction value of the in-car sensor temperature by considering the in-car sensor temperature compensation value and the temperature value of the in-car sensor and the weight over time. ; The air conditioning system is controlled based on the calculated inca sensor temperature final correction value.

Description

Vehicle air conditioning system {AIR CONDITIONING SYSTEM FOR AUTOMOTIVE VEHICLES}

The present invention relates to an air conditioner for a vehicle, and more particularly, by configuring to predict the actual "in-vehicle temperature" through a preset "calculation logic" at the initial start of the vehicle, Even though the in-car sensor cannot detect the exact interior temperature, it is possible to secure the actual "in-vehicle temperature", and through this, it is possible to secure the comfort of the interior when the vehicle is initially started. It relates to the device.

In recent years, vehicle air conditioning systems have been improved with an automatic control method.

An automatic control type air conditioner (hereinafter abbreviated as an air conditioner) includes a control unit 10 as shown in FIG. 1.

The control unit 10 is equipped with a microprocessor, and when the temperature and the amount of solar radiation inside and outside the vehicle are input from the In-Car Sensor 20, the outdoor air sensor 22, and the solar radiation sensor 24, The evaporator 30, the heater 32, the blower 34, and various doors 36 are controlled according to the input data.

Accordingly, the air temperature, air volume, and discharge direction supplied into the vehicle interior are automatically adjusted according to the temperature conditions inside and outside the vehicle interior. Thereby, the temperature in the vehicle interior is comfortably and automatically controlled.

On the other hand, the in-car sensor 20 that senses the temperature inside the vehicle is installed inside the center facia (not shown) in the front of the driver's seat, and is provided by an aspirator (not shown). The "in-vehicle temperature" is sensed while being in contact with the inhaled "in-vehicle air", and the sensed "in-vehicle temperature" is input to the controller 10.

Therefore, the control unit 10 can control the evaporator 30, the heater 32, the blower 34, and various doors 36 based on the "in-car temperature" data input from the incar sensor 20. To be. This makes it possible to automatically control the temperature in the vehicle interior.

Here, the aspirator of the incar sensor 20 generates negative pressure by using the internal air of the air conditioning case 40 when the air conditioning device is operated. Through the generated negative pressure, "air in the vehicle Inhales ", and induces the inhaled "air in the car" to the incar sensor 20.

Thus, the induced "in-car air" is brought into contact with the in-car sensor 20, thereby allowing the in-car sensor 20 to sense the "in-car temperature".

By the way, such a conventional in-car sensor 20, at the initial start of the vehicle, until the aspirator of the air conditioning system inhales a sufficient amount of "in-car air", the in-car sensor 20 is inside the center fascia. There is a drawback of sensing the temperature as it is, and because of this drawback, there is a drawback in that it is not possible to accurately detect "in-vehicle temperature" at the initial start of the vehicle.

In particular, if there is a large deviation between the internal temperature of the center fascia and the "inner temperature", if the internal temperature of the center fascia with a large deviation is incorrectly detected as the "inner temperature", the air conditioner is controlled based on the incorrectly detected temperature data There is a problem that it becomes.

And because of this problem, the air conditioning system is based on the incorrectly sensed temperature data until the aspirator of the air conditioning system inhales a sufficient amount of "air in the car" and the incar sensor 20 normally senses the "in-vehicle temperature". There is a drawback of being controlled.

In addition, due to this drawback, there is a problem that it is difficult to accurately control the temperature inside the vehicle at the initial start of the vehicle, and as a result, a drawback has been pointed out that the comfort of the inside of the vehicle is markedly deteriorated at the initial start of the vehicle.

The present invention has been conceived to solve the conventional problems as described above, and its object is configured to accurately predict the actual “in-vehicle temperature” through a preset “calculation logic” at the initial start of the vehicle. , To provide an air conditioner for a vehicle capable of securing an actual "in-vehicle temperature value" at the initial start of the vehicle.

Another object of the present invention is to obtain an actual "in-vehicle temperature value" through a preset "calculation logic" at the initial start-up of the vehicle, thereby air conditioning based on the secured "in-vehicle temperature value" It is an object to provide an air conditioner for a vehicle that can control an apparatus and, through this, secure the comfort in a vehicle interior at the initial start of the vehicle.

In order to achieve this object, in the vehicle air conditioning apparatus according to the present invention, in the vehicle air conditioning apparatus including a controller for controlling the air conditioning apparatus based on a temperature value input from an in-car sensor, the controller , In consideration of factors affecting the temperature in the vehicle interior, calculate the in-car sensor temperature compensation value of the temperature value input from the in-car sensor, and the in-car sensor temperature compensation value, the temperature value of the in-car sensor, and weight over time after starting Considering the inca sensor temperature final correction value (T) is calculated; The air conditioner is controlled based on the calculated inca sensor temperature final correction value (T), and the inca sensor temperature final correction value (T) is calculated by [Equation 2] below.
[Equation 2]
Incar sensor temperature final correction value (T) = {Time weight for elapsed time after starting (E) × Inca sensor temperature (F) + [100-Time weight for elapsed time after starting (E)] × Inca sensor temperature compensation (A)/100

In addition, the factors affecting the interior temperature, which is the calculation factor of the in-car sensor temperature compensation value, are the user-set temperature, the outside temperature, and the amount of insolation, and the in-car sensor temperature compensation value is calculated by the following [Equation 1]. do.

[Equation 1]

In-car sensor temperature compensation value (A) = set temperature compensation value (B) × outside temperature compensation value (C) × insolation compensation value (D)

In addition, the control unit is characterized in that the control of the air conditioner through the final correction value of the in-car sensor temperature is limited and applied only for a preset time at the start of the vehicle.

In addition, the in-car sensor temperature compensation value (A) is characterized in that the set temperature compensation value is considered, and the higher the set temperature is, the lower the set temperature is in inverse proportion thereto.

And the inca sensor temperature compensation value (A) is characterized in that the outside temperature compensation value is considered, but the higher the outside temperature is, the higher is set in proportion thereto.

And the insolation compensation value of [Equation 1] is characterized in that it is set higher in proportion to the insolation amount is higher.

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According to the vehicle air conditioner according to the present invention, at the initial start of the vehicle, various factors affecting the interior temperature and these factors are calculated using a preset "calculation logic" to predict the actual "cabinet temperature". Therefore, it is possible to secure an actual "in-vehicle temperature" even though the in-car sensor cannot detect the correct interior temperature at the initial start of the vehicle.

In addition, even though the in-car sensor cannot detect the correct interior temperature at the initial start of the vehicle, it is a structure that can secure the actual “inside temperature”. Although it cannot be done, it has the effect of accurately controlling the air conditioning system.

In addition, since the air conditioning system can be accurately controlled even though it is not possible to detect the correct interior temperature at the initial start of the vehicle, it is possible to secure the comfort of the interior during the initial start of the vehicle. There is an effect that can improve the convenience of as much as possible.

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,
3 is a flow chart showing an example of the operation of the vehicle air conditioner according to the present invention.

Hereinafter, a preferred embodiment of a vehicle air conditioner according to the present invention will be described in detail with reference to the accompanying drawings (same components as in the prior art will be described using the same reference numerals).

First, before looking at the features of the vehicle air conditioner according to the present invention, a brief look at the automatic control type air conditioner with reference to FIG. 2.

The automatic control system air conditioner has a control unit 10.

The control unit 10, when input from the in-car sensor 20, the outdoor air sensor 22, the solar radiation sensor 24, etc., the evaporator 30 and the heater according to the input data It controls 32, the blower 34, and various doors 36. Therefore, the temperature inside the vehicle is automatically adjusted according to the temperature conditions inside and outside the vehicle.

On the other hand, the incar sensor 20 is installed inside the center fascia (not shown), and senses the temperature inside the car while in contact with the "air in the car" sucked by an aspirator (not shown), The sensed vehicle interior temperature is input to the control unit 10. Accordingly, the controller 10 can control the evaporator 30, the heater 32, the blower 34, and various doors 36 based on the temperature data in the vehicle interior of the incar sensor 20.

Here, the aspirator of the incar sensor 20 generates negative pressure using the internal air of the air conditioning case 40 when the air conditioning device is operated, and sucks "air in the vehicle" through the generated negative pressure, The inhaled "air in the car" is guided to the incar sensor 20.

Next, 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 conditioning apparatus of the present invention includes a control unit 10, wherein the control unit 10 includes a first memory unit 12, a second memory unit 14, and a third memory unit. (16) and a fourth memory unit (18) are provided.

The first memory unit 12 stores “set temperature compensation values” for each “user set temperature” input through a temperature control switch (not shown).

The second memory unit 14 stores “outdoor temperature compensation values” for each “outdoor sensor temperature” input from the outside sensor 22.

The third memory unit 16 stores "insolation compensation values" for each "insolation sensor insolation amount" input from the insolation sensor 24.

The fourth memory unit 18 variously stores "time weights" for each "elapsed time after starting" of the vehicle.

Here, the "set temperature compensation value" for each "user set temperature", the "outdoor temperature compensation value" for each "outdoor sensor temperature", the "insolation compensation value" for each "insolation sensor insolation", and the "elapsed time after start-up" The "time weights" are determined based on the results of several tests as test values.

On the other hand, when the "vehicle start signal S1" is input from the start switch 26 of the vehicle, the controller 10 enters the "start initial mode".

And the control unit 10, which has entered the "starting initial mode", is currently at the beginning of the start-up, so that the in-car sensor 20 cannot detect the correct interior temperature, the "current interior temperature" input from the in-car sensor 20 Based on ", it is judged that the air conditioning system cannot be controlled.

And when such a determination is made, the control unit 10 excludes the "in-vehicle temperature" input from the in-car sensor 20, and calculates the "in-car interior temperature" of the in-car sensor 20 through a pre-built "calculation logic". After correction, it is configured to control the air conditioner based on the corrected "in-vehicle temperature" value.

To explain this in detail, the control unit 10, after entering the "starting initial mode", the "set temperature compensation value" corresponding to the temperature set by the user, and the "outdoor air sensor temperature" input from the outdoor air sensor 22 The "outdoor temperature compensation value" corresponding to "and the "insolation amount compensation value" corresponding to the "insolation sensor insolation amount" input from the insolation sensor 24 are respectively in the first to third memory units 12, 14, 16 Detect in real time.

And when real-time detection of the "set temperature compensation value", the "outdoor temperature compensation value", and the "insolation amount compensation value" is completed, the control unit 10, the detected "set temperature compensation value" and the "outdoor temperature compensation value" And "Insolation compensation value" are processed by the following built-in [Equation 1] to calculate "Inca sensor temperature compensation value (A)" in real time.

[Equation 1]

In-car sensor temperature compensation value (A) = set temperature compensation value (B) × outside temperature compensation value (C) × insolation compensation value (D)

Here, it is preferable that the "set temperature compensation values" for each "user set temperature" stored in the first memory unit 12 are set lower in inverse proportion to the set temperature by the user. This is to send the temp door 36a to the warm side by lowering the temperature compensation value of the incar sensor 20 because the user wants a higher discharge temperature to increase the set temperature.

In addition, the "outdoor temperature compensation values" for each "outdoor sensor temperature" stored in the second memory unit 14 are preferably set higher in proportion to the higher outside temperature. This is to send the temp door 36a to the cool side by increasing the temperature compensation value of the inca sensor 20, as the higher the outside temperature, the lower the discharge temperature.

In addition, it is preferable that the "insolation compensation values" for each "insolation sensor insolation amount" stored in the third memory unit 16 be set higher in proportion to the higher insolation amount. This is to send the temp door 36a to the cool side by increasing the temperature compensation value of the incar sensor 20 as the amount of solar radiation increases.

On the other hand, when the "inca sensor temperature compensation value (A)" is calculated in real time, the control unit 10 will have the "inca sensor temperature compensation value (A)" calculated in real time and the "inca sensor temperature compensation value (A)" inputted from the inca sensor 20 Sensor temperature" and "time weight" corresponding to "elapsed time after start-up" detected by the fourth memory unit 18 are processed by the pre-built [Equation 2] below, and "Inca sensor temperature final correction value (T )" is calculated in real time.

[Equation 2]

Incar sensor temperature final correction value (T) = {Time weight for elapsed time after starting (E) × Inca sensor temperature (F) + [100-Time weight for elapsed time after starting (E)] × Inca sensor temperature compensation (A)} / 100

These [Calculation Equation 2] include the "Inca sensor temperature compensation value (A)" calculated through [Equation 1], the "In-Car sensor temperature" input from the In-Car sensor 20, and "Elapsed time after starting" As a value calculated by considering all the “time weights” for, and using this, the “incar sensor temperature final correction value (T)” can be calculated at the initial start of the vehicle, and through this, at the initial start of the vehicle, It is possible to accurately predict the actual "cabin temperature".

In particular, by considering the "time weight" according to the "elapsed time after starting" in real time, it is possible to accurately predict the "in-vehicle temperature" that changes from moment to moment according to the "elapsed time after starting".

Therefore, at the initial start of the vehicle, although the in-car sensor 20 cannot detect the correct interior temperature, the actual "in-vehicle temperature value" can be secured, and through this, the evaporator 30 of the air conditioner ), the heater 32, the blower 34, and various doors 36 can be accurately controlled.

As a result, at the initial start of the vehicle, even though the in-car sensor 20 cannot detect the correct interior temperature, it is possible to secure the comfort in the interior of the vehicle, and through this, the convenience of the passenger can be improved as much as possible. .

Again, referring to FIG. 2, the controller 10 is configured to be released from the "starting initial mode" when a preset "reference time" elapses after the vehicle is started on.

And the control unit 10 released from the "start-up initial mode" stops the calculation of the "inca sensor temperature final correction value (T)" through [Equation 1] and [Equation 2], and input from the inca sensor 20 It is configured to recognize the generated temperature data as the actual “in-vehicle temperature”.

Therefore, after the "reference time", it is configured to control the air conditioner based on the "in-vehicle temperature" input from the in-car sensor 20.

The reason for this configuration is that, after a certain period of time has elapsed after the vehicle is turned on, the in-car sensor 20 normally senses the "in-vehicle temperature". Here, it is preferable that the "reference time" built into the control unit 10 is "60 seconds".

Next, an example of the operation of the present invention having such a configuration will be described with reference to FIGS. 2 and 3.

First, it is determined whether the vehicle is turned on (S101). As a result of the determination, if the vehicle is turned on, the control unit 10 enters the "starting initial mode" (S103).

Then, the controller 10 that has entered the "start-up initial mode" determines that the in-car sensor 20 cannot accurately detect the "in-vehicle temperature" because it is currently in the beginning of the start-up.

And according to this determination, the controller 10 includes a "set temperature compensation value" corresponding to the temperature set by the user, and a "outdoor temperature compensation value" corresponding to the "outdoor sensor temperature" input from the outdoor sensor 22 , "Insolation compensation value" corresponding to the "insolation sensor insolation amount" input from the insolation sensor 24 is detected in real time by the first to third memory units 12, 14 and 16, respectively (S105).

And when real-time detection of the "set temperature compensation value", the "outdoor temperature compensation value", and the "insolation amount compensation value" is completed, the control unit 10, the detected "set temperature compensation value" and the "outdoor temperature compensation value" And "insolation compensation value" are computed and processed by the built-in [Equation 1] in advance to calculate "inca sensor temperature compensation value (A)" in real time (S107).

And when the real-time calculation of the "inca sensor temperature compensation value (A)" is completed, the control unit 10, the "inca sensor temperature compensation value (A)" calculated in real time, and the "inca sensor temperature compensation value (A)" inputted from the inca sensor 20 Sensor temperature" and "time weight" for "elapsed time after start-up" detected by the fourth memory unit 18 are calculated and processed by the built-in [Equation 2], and the "Inca sensor temperature final correction value (T)" Is calculated in real time (S109).

Then, the "in-car sensor temperature final correction value T" for the initial start of the vehicle can be obtained, and through this, the actual "in-vehicle temperature" for the initial start of the vehicle can be predicted in real time.

On the other hand, when the real-time calculation of the "in-car sensor temperature final correction value (T)" is completed, that is, when the real-time prediction of the "in-vehicle temperature" is completed, the controller 10 provides air conditioning based on the predicted "in-vehicle temperature". The device is controlled (S111).

Then, at the initial start-up of the vehicle, although the in-car sensor 20 cannot detect the correct interior temperature, the air conditioning device can be accurately controlled.

Therefore, at the initial start-up of the vehicle, although the in-car sensor 20 cannot detect the correct interior temperature, it is possible to secure the comfort of the interior of the vehicle.

On the other hand, the control unit 10 determines whether or not a preset "reference time" has elapsed while entering the "start-up initial mode" (S113). For example, after starting, it is determined whether "60 seconds" has elapsed.

As a result of the determination, if the "reference time" has elapsed, the controller 10 is released from the "start-up initial mode" (S115).

And the control unit 10 released from the "start-up initial mode" stops the calculation of the "inca sensor temperature final correction value (T)" through [Equation 1] and [Equation 2], and input from the inca sensor 20 The obtained temperature data is recognized as the actual "in-vehicle temperature" (S117).

Then, the air conditioner is automatically controlled based on the "current in-vehicle temperature" input from the in-car sensor 20.

In the above, preferred embodiments of the present invention have been exemplarily described, but the scope of the present invention is not limited to such specific embodiments, and can be appropriately changed within the scope described in the claims.

10: control unit 12: first memory unit
14: second memory unit 16: third memory unit
18: fourth memory unit 20: in-car sensor
22: outdoor sensor 24: solar sensor
26: start switch (Switch) 30: evaporator
32: heater 34: blower
36: door 40: air conditioning case
S1: vehicle start signal

Claims (7)

In the vehicle air conditioner comprising a control unit 10 for controlling the air conditioner based on the temperature (F) value input from the in-car sensor (20),
The control unit 10,
In consideration of factors affecting the temperature in the vehicle interior, the in-car sensor temperature compensation value (A) of the temperature value input from the in-car sensor 20 is calculated,
Calculating a final correction value (T) of the in-car sensor temperature in consideration of the in-car sensor temperature compensation value (A), the temperature (F) value of the in-car sensor 20, and the weight (E) over time after starting;
Controls the air conditioner based on the calculated inca sensor temperature final correction value (T),
The in-car sensor temperature final correction value (T) is a vehicle air conditioner, characterized in that calculated by the following [Equation 2].
[Equation 2]
Incar sensor temperature final correction value (T) = {Time weight for elapsed time after starting (E) × Inca sensor temperature (F) + [100-Time weight for elapsed time after starting (E)] × Inca sensor temperature compensation (A)/100 The method of claim 1,
Factors affecting the interior temperature, which is the calculation factor of the in-car sensor temperature compensation value (A), are the user-set temperature, the outside temperature, and the amount of insolation,
The in-car sensor temperature compensation value (A) is calculated by the following [Equation 1].
[Equation 1]
In-car sensor temperature compensation value (A) = set temperature compensation value (B) × outside temperature compensation value (C) × insolation compensation value (D) The method of claim 1,
The control unit 10,
A vehicle air conditioner, characterized in that the control of the air conditioner through the in-car sensor temperature final correction value (T) is limited and applied only for a preset time at the initial start of the vehicle. In the vehicle air conditioner comprising a control unit 10 for controlling the air conditioner based on the temperature (F) value input from the in-car sensor (20),
The control unit 10,
In consideration of factors affecting the temperature in the vehicle interior, the in-car sensor temperature compensation value (A) of the temperature value input from the in-car sensor 20 is calculated,
Calculating a final correction value (T) of the in-car sensor temperature in consideration of the in-car sensor temperature compensation value (A), the temperature (F) value of the in-car sensor 20, and the weight (E) over time after starting;
Controls the air conditioner based on the calculated inca sensor temperature final correction value (T),
The in-car sensor temperature compensation value (A) considers a set temperature compensation value, and is set lower in inverse proportion to the set temperature as the set temperature increases. In the vehicle air conditioner comprising a control unit 10 for controlling the air conditioner based on the temperature (F) value input from the in-car sensor (20),
The control unit 10,
In consideration of factors affecting the temperature in the vehicle interior, the in-car sensor temperature compensation value (A) of the temperature value input from the in-car sensor 20 is calculated,
Calculating a final correction value (T) of the in-car sensor temperature in consideration of the in-car sensor temperature compensation value (A), the temperature (F) value of the in-car sensor 20, and the weight (E) over time after starting;
Controls the air conditioner based on the calculated inca sensor temperature final correction value (T),
The in-car sensor temperature compensation value (A) considers an outside temperature compensation value, and is set higher in proportion to the higher outside temperature. The method of claim 2,
The insolation compensation value (D) of the [Equation 1] is set higher in proportion to the higher insolation. delete

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