KR20030056408A - A temperature compensation system of car - Google Patents

Abstract

PURPOSE: An apparatus for compensating temperature in a vehicle is provided to set actual indoor temperature of the vehicle depending on intention of a user. CONSTITUTION: An apparatus comprises a control part(201), an air-conditioning system(203), an indoor temperature sensor(209), a memory(205) and an FATC(Full Automatic Temperature Controller:207). The FATC offers information on solar radiation(a), current time(b), state of lighting of tail-lights(c) and driving of wipers(d). The indoor temperature sensor measures indoor temperature of a vehicle. The air-conditioning system operates an air conditioner or a heater. The memory stores table map information for compensation of indoor temperature of the vehicle corresponding with information inputted by the FATC. The table map information is set to drop indoor temperature by re-setting measurement of the indoor temperature sensor when solar radiation is high, and compensates indoor temperature by setting measurement of the indoor temperature depending on time, lighting of the tail-lights and wiper driving signal. Alternatively, heating or cooling intensity is controlled by adjusting on/off switching range for controlling the air-conditioning system or by controlling power impressed to a fan.

Description

Temperature compensation device in vehicle {A TEMPERATURE COMPENSATION SYSTEM OF CAR}

The present invention relates to indoor temperature control of a vehicle, and more particularly, to a temperature compensation device in a vehicle for performing temperature control in a vehicle based on a plurality of table information corresponding to an output value and an output value of a full automatic temperature control (FATC). It is about.

In general, the vehicle air conditioning system includes an INCAR SENSOR provided in the vehicle to compensate for the control of the air conditioning system of the vehicle using the photosensor according to the measured temperature in the vehicle. The INCAR SENSOR is mounted on one side of the vehicle to measure the room temperature, and the optical sensor measures the illuminance of natural light flowing into the vehicle, operates the air conditioning system according to the illuminance of the natural light, and then measures the temperature of the vehicle. Feedback control of the air conditioning system.

As shown in FIG. 1, a control logic 101, an INCAR SENSOR 103, an air conditioning system 109, and a photo sensor 107 are configured. The in-car sensor 103 is mounted inside the vehicle to measure the temperature in the vehicle, and the photo sensor 107 measures the amount of insolation.

The user sets the room temperature, and based on this, the control logic 101 measures the room temperature through the in-car sensor 103. In addition, the solar radiation information is input from the photo sensor 107 to operate the air conditioning system 109. When the room temperature measured by the in-car sensor 103 is lower than the room temperature set by the user, the heater is operated through the air conditioning system 109. At this time, when the amount of solar radiation detected by the photo sensor 107 is large, the air conditioning system is operated by setting the room temperature higher than the measured value. On the other hand, when the amount of solar radiation is small, the air conditioning system is operated by setting the room temperature detected by the in-car sensor 103 to a predetermined value low.

However, the photo sensor 107 has a problem that the actual air conditioning system operation is meaningless as the incident amount detected according to the driving direction or the parking direction of the vehicle is measured differently. In addition, the in-car sensor is mounted on a specific part of the vehicle, so that the measurement of the temperature in the vehicle is detected only at a specific position, which makes the indoor temperature measurement unreasonable. Thus, a problem arises that there is an urgent need for a system implementation in which substantial room temperature compensation can be achieved.

The present invention was created to solve the above problems, and an object of the present invention is to exclude the sensing signal detected at a specific part of the vehicle, and to compensate the temperature according to the surrounding environment so that the actual in-vehicle temperature can be set according to the user's intention. The present invention provides a temperature compensation device in a vehicle.

A temperature compensation device in a vehicle according to an aspect of the present invention for achieving the above object is provided from a Full Automation Temperature Controller in an air conditioning system of a vehicle performing feedback air conditioning control through an INCAR SENSOR A memory having linear table correction coefficients for calibrating the indoor temperature of the vehicle based on the solar radiation information and the current time information; And a controller configured to receive the solar radiation information and the time information from different FTCs, receive the correction coefficients from the table map stored in the memory, correct the user set value information, and perform cooling and heating control of the air conditioning system. do.

1 is a block diagram showing the air conditioning control of a conventional vehicle,

2 is a block diagram showing the air conditioning control according to the present invention,

3 is a graph for explaining the information used in FIG.

4 is a diagram showing table information applied to the present invention.

<Explanation of symbols for the main parts of the drawings>

201: control unit 203: air conditioning system

205: memory 207: FATC

209: INCAR SENSOR

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. 2 is a configuration diagram according to the present invention, FIG. 3 is a graph for explaining input information used in the present invention, and FIG. 4 is a diagram showing table map information used in the present invention as an embodiment. As illustrated, the control unit 201 is configured of a control unit 201, an air conditioning system 203, an INCAR SENSOR 209, a memory 205, and a FATC (Full Automation Temperature Control) 207. In the present invention, the controller 201 and the memory 205 will be described as a single device, but the object of the present invention can be achieved by storing a corresponding logic or program in an internal memory provided in the FATC 207. .

The FATC 207 provides the amount of solar radiation information (a), current time information (b), taillight lighting state information (c), and wiper driving information (d) of natural light. The in-car sensor 209 measures the room temperature in the vehicle, and the air conditioning system 203 is an air conditioning system for operating an air conditioner or a heater. The memory 205 stores table map information for compensating an indoor temperature value of the vehicle in response to the information input from the FATC 207.

The table map information lowers the room temperature by resetting the measured value of the inca sensor 209 to be high when there is a large amount of insolation, and the inca sensor 209 according to whether the current time input from the time information b is am, noon, afternoon, or late afternoon. The room temperature can be compensated by setting the measured value from) low or high. Of course, the compensation value according to the measured values of the solar radiation information and the visual information depends on the experimental value, and holds different table map information according to cooling or heating.

In addition, according to the above-described taillight lighting state information (c) has a different result value, the wiper drive signal (d), that is to have a different result value even when it rains.

In the indoor temperature compensation of the vehicle, the temperature value measured by the inca sensor 209 is reset. However, the inca sensor 209 measures the actual temperature value and controls the on / off system for controlling the air conditioning system 203. The amount of heating or cooling can be controlled by adjusting the off switching section or by adjusting the power applied to the blower fan.

As shown in FIG. 3, a graph for in-vehicle temperature compensation according to the solar radiation amount (a) and time information (b) detected by the FATC 207 is presented. As a result, the correction amount is varied. When the amount of insolation is high, when the heater is operated, the heating amount is lowered through the air conditioning system 203, when the amount of insolation is low, the heating amount is increased, or as described above, the air conditioning is variable by varying the value measured from the in-car sensor 209. System 203 may be indirectly controlled.

On the other hand, if the amount of insolation when the air conditioner is operating, the cooling amount is increased through the air conditioning system 203, and when the amount of insolation is low, the cooling amount is lowered. The time information (b) may also be a factor in varying the air conditioning amount of the air conditioning system 203. When the current time information is close to noon during the operation of the heater, the heating amount of the air conditioning system 203 is reduced and the time is out of the noon. Increase the amount of heating proportionally. Of course, the air conditioner operation will perform the opposite operation.

In addition, the heating and cooling amount is adjusted according to the input of the taillight lighting state (c) and the wiper driving signal (d). Since the lighting of the taillight is late at night, the heating amount is increased or the cooling amount is lowered. To increase or decrease the cooling amount.

As described above, the memory 205 has respective table maps for linearly correcting the air conditioning amount according to the solar radiation information a, the time information b, the tail light lighting state information c, and the wiper drive signal d. The information is stored.

The table map information is shown in FIG. 4 as an example, (a) is insolation information (a), (b) is time information (b), and (c) is tail light lighting state information (c) and wiper. Drive signal d. On days with very small amounts of insolation, the correction value is set to -24, and days for which the amount of insolation is normal is set to +12. However, this is only an example. In practice, it is possible to increase the accuracy of the correction by taking the correction value or linearly by reflecting the linearity of the solar radiation amount.

The above (C) is divided by the operation of the air conditioner and the operation of the heater and set as positive signs of the same correction value, but may be set to different correction values.

On the other hand, when the driving state of the vehicle is solar radiation 20, the current time of noon, when there is no rain, that is, spring or autumn season, about 12 pm, the tail light is not turned on and the weather is sunny, the user operates the heater It is assumed that the correction value according to the solar radiation amount 20 is +4, the correction value according to the noon is +19, and since the rain does not rain in the daytime, the sum of the correction values is +23.

That is, the control unit 201 receives a table value from the memory 205 and operates the air conditioning system 203 according to the temperature set by the user, and increases the heating amount by 23% to correspond to the correction value 23. It is already described that the heating amount increase can be corrected by the reset value of the in-car sensor 209 or the output amount of the air conditioning system 203 can be corrected.

On the other hand, if it rains in the same weather, the solar radiation correction value +4 and the current time correction value +19 are linked to the wiper operation. It receives information on how many stages the wiper is operating from FATC 207. When the wiper is operated in three stages due to a large ratio, the correction value becomes +10. Therefore, the control unit 201 calculates 33 by adding the correction values, and increases the current heating amount by 33%. This is corrected in consideration of the temperature drop in the car because it rains.

Further, when operating in winter, for example, when the amount of insolation is 10, the current time is noon, and the weather is sunny, the respective correction values are +18 and +19, and the calculation result of the control unit 201 becomes -3. Therefore, when the user operates the heater, the heating amount of the air conditioning system 203 to the user set value is increased by 37%, on the day of the solar radiation amount 5 having a lower amount of solar radiation, the correction value becomes +21, and the lower the amount of solar radiation, the heating amount To increase. Of course, at night, the heating amount is increased further.

When the air conditioner is operated in the summer, the cooling amount of the air conditioning system 203 is increased or decreased based on the air conditioner correction value information of each table map. The cooling amount decreases when the amount of insolation is 20, the running time is noon, and when there is a little rain, each of the correction amounts is +13, -17, -7, and eventually -11% of the cooling amount is varied. In the case of a lot of rain, the cooling system 203 is controlled to further reduce the amount of cooling to appropriate the room temperature.

As described above, the temperature compensation device in the vehicle according to the present invention receives the solar radiation information, the time information, the tail light lighting state information and the wiper driving information from the FATC, the vehicle according to the amount of sunlight, current time and night or natural rain The indoor temperature control of the camera is calibrated, so that a comfortable correction of the indoor temperature is achieved by setting a correction coefficient suitable for a wide range of environments without measuring the incident degree of natural light through the conventional photo sensor.

In addition, since the photo sensor is not used, it is possible to reduce the system cost due to air conditioning control.

What has been described above is just one embodiment for implementing the temperature compensation device in the vehicle according to the present invention, the present invention is not limited to the above embodiment, as claimed in the following claims of the present invention Without departing from the gist of the present invention, one of ordinary skill in the art will have the technical spirit of the present invention to the extent that various modifications can be made.

Claims (2)

In an air conditioning system of a vehicle performing feedback air conditioning control through an INCAR SENSOR, A memory having linear table correction coefficients for calibrating the indoor temperature of the vehicle based on solar radiation information provided from a Full Automation Temperature Controller and current time information in each table map; And And a controller configured to receive the solar radiation information and the time information from the FTC to receive the correction coefficients from the table map stored in the memory to correct user set value information to perform air conditioning and heating control of the air conditioning system. Temperature compensation device in the vehicle. The temperature compensation device of claim 1, wherein the table map further includes table information in which correction coefficients are set based on input information based on a tail light lighting state and a wiper driving state input from the FTC.