KR100859128B1 - Method for warm control by car body cooling - Google Patents

Abstract

The present invention relates to a heating control method according to the body cooling, the purpose of the discharge temperature in consideration of the deterioration of the indoor heating performance according to the cooling of the vehicle body due to the outside temperature, running duration, vehicle speed, wind speed, etc. The air conditioning system, such as the discharge air volume and the wind direction is corrected and controlled, so that the occupant can keep the interior atmosphere of the vehicle warm and comfortable.

An object of the present invention is to automatically control the air conditioning system so that the indoor temperature is set to maintain the set target temperature, as the automatic indoor temperature of the vehicle is set, in the case of the outside temperature of the vehicle running when the temperature outside the set temperature The first step of detecting the body cooling degree according to the time and the traveling speed, the discharge wind direction mode to compensate for the indoor heat loss due to the cooling of the body when the indoor temperature reaches the target temperature when the running time of the vehicle and the vehicle speed is more than the set value And a second step of automatically converting to a predetermined interval.

Vehicle, car, body cooling, heating, cold weather, automatic temperature control, ATC, vehicle speed, wind speed, outside temperature, driving duration, wind direction, blower, correction

Description

Heating control method by car body cooling {Method for warm control by car body cooling}

1 is a block diagram of a thermostat for a vehicle according to the prior art,

2 is a block diagram of a heating control apparatus according to the vehicle body cooling for implementing the present invention,

3 is a flowchart of a heating control process according to vehicle body cooling according to an embodiment of the present invention;

4 is a flowchart of a heating control process according to vehicle body cooling according to another embodiment of the present invention;

5A to 5D are graph display diagrams for setting a correction amount for vehicle body cooling according to the present invention.

<Description of Symbols for Major Parts of Drawings>

201: automatic temperature control unit 211: temperature setting unit

212: room temperature sensor 213: outside temperature sensor

214: timer 215: vehicle speed sensor

216: wind speed sensor 221: intake door

222: mod door 223: temp door                 

224: blower motor

The present invention relates to an air conditioning system of a vehicle, and more particularly, discharge temperature and discharge in consideration of a decrease in indoor heating performance due to cooling of the vehicle body due to outside temperature, running duration, vehicle speed, and wind speed during heating of the vehicle in a cold winter season. The present invention relates to a heating control method according to cooling of a vehicle body for correcting and controlling an air conditioning system such as air volume and wind direction, so that an occupant can keep a vehicle's interior atmosphere warm and comfortable.

In general, the air conditioning system of a vehicle prevents the formation of frost in the air conditioner and glass window for controlling the air temperature of the vehicle, the dehumidification and humidification apparatus for controlling the indoor humidity, the ventilation system for the indoor air circulation of the vehicle, and the like. It consists of a defroster device.

Here, the heating system for raising the indoor temperature in winter is usually composed of a heater, a blower, a duct, the air outside the vehicle is introduced into the interior while passing through the pipe of the heater, the heater is the cooling water used for engine cooling The hot water is discharged while heat exchanged, and the hot water is cooled while circulating to the cooler to cool the discharged hot water. At this time, the blower fan rotates the heat generated while passing through the cooler to be supplied into the vehicle through the air conditioning duct.

The heating device of such a vehicle requires a considerable preheating time until the coolant of the engine reaches a predetermined temperature, and the air heated by the preheated engine coolant flows into the room to warm the room temperature.

As shown in FIG. 1, the temperature control apparatus for a vehicle according to the related art is automatically turned on in a state in which the on / cooling driving means 135 is operated by turning on the air conditioner (A / C) switch 151. When the automatic mode is selected through the mode key 140, the control module detects the indoor temperature of the vehicle detected by the indoor temperature sensor 121, the outdoor temperature of the vehicle detected by the outdoor temperature sensor 122, and the solar radiation sensor 123. The control value is calculated based on the amount of solar radiation detected by the vehicle and the coolant temperature of the engine detected by the coolant temperature sensor 124, and the temporal motor 131 and the intake door motor 132 are calculated according to the calculated control value. And the mode door motor 133 and the blower motor 134 are controlled.

Accordingly, the indoor temperature and the indoor blowing environment are adjusted by the control value calculated through the information detected from each sensor in the automatic mode.

That is, according to the control value, the control module controls the air volume passing through the heater core of the heater unit and the evaporator of the cooling unit to control the temperature of the air drawn out into the room, and the air to be blown into the vehicle. Intake door motor 132 for selecting whether to make the air inside or outside the air, a mode door motor 133 for adjusting the air blowing direction, and a circulation duct provided with a heater core and an evaporator for inside or outside air By controlling the driving of the blower motor 134 and the warm / cooling driving means 135 forcibly blowing into the room through the air, it is possible to control the room temperature and the air blowing environment that passengers want in the interior of the vehicle. .                         

Such a conventional technology calculates a set temperature, an outside temperature sensor, and a sensed temperature of an indoor temperature sensor to maintain a set target temperature for heating, thereby automatically adjusting the air intake mode or the discharge mode to heat the room, which is effective for heating performance. There is.

However, such a prior art in the winter, especially in cold weather, the running time is long, when the outside air temperature is strong, the body is cooled to lower the sense of temperature, the room temperature may feel cold, even at this time heating performance is irrelevant There was a problem that only keep the temperature set so that it operates in a cold indoor atmosphere.

The present invention is to solve the above-mentioned problems of the prior art, the object of the present invention in consideration of the deterioration of the indoor heating performance according to the cooling of the vehicle body by the outside temperature, running duration, vehicle speed, wind speed, etc. Since the air conditioning system such as the discharge temperature, the discharge air volume and the wind direction is corrected and controlled, to provide a heating control method according to the vehicle body cooling to allow the occupant to keep the interior atmosphere of the vehicle warm and comfortable.

In the heating control process according to the vehicle body cooling to achieve the object of the present invention in the automatic control of the air conditioning system to automatically control the air conditioning system to maintain the set target temperature, as the indoor temperature automatic mode of the vehicle is set, A first step of detecting a vehicle cooling degree according to a driving time and a traveling speed when the outside temperature of the vehicle is lower than a set temperature; and when the indoor temperature reaches a target temperature when the driving time and the vehicle speed of the vehicle are higher than a set value. And a second step of automatically converting the discharge wind direction mode to a predetermined interval to compensate for indoor heat loss due to cooling.

The present invention made as described above will be described in detail with reference to the accompanying drawings.

2 is a block diagram of a heating control apparatus according to the vehicle body cooling for implementing the present invention, the temperature setting unit 211 for setting the target temperature for the passenger to automatically adjust the room temperature of the vehicle, and the interior of the vehicle An indoor temperature sensor 212 for detecting a temperature, an outside temperature sensor 213 for detecting an external temperature of the vehicle, a timer 214 for providing a cumulative time for air conditioning control, and a vehicle speed for detecting a traveling speed of the vehicle A sensor 215, a wind speed sensor 216 for detecting an external wind speed of the vehicle, an automatic temperature control unit 201 for controlling heating with reference to data provided from the respective units, and the automatic An intake door 221 for selecting whether the air to be blown indoors by the control of the temperature controller 201 is to be the inside air of the vehicle or the outside air, and the air is controlled by the automatic temperature controller 201. To take out the direction of The mode door 222, the temporal door 223 for adjusting the air temperature to be blown out of the room by controlling the amount of air under the control of the automatic temperature control unit 201, and the control of the automatic temperature control unit 201. It consists of a blower motor 224 for forcibly blowing the inside or outside air into the room through a circulation duct provided with a heater core and an evaporator.

The operation according to the embodiment of the present invention configured as described above will be described in more detail with reference to FIG. 2.

First, the present invention is a tempored door to compensate for the indoor temperature decrease according to the vehicle cooling by the vehicle's running speed and driving duration and vehicle speed, wind speed as well as indoor and outdoor temperature to maintain the heating set temperature in the automatic temperature control mode. Blower motor control and discharge wind direction are controlled.

Figure 2 is a block diagram of a heating control device according to the vehicle body cooling for implementing the present invention, when the passenger sets the indoor target temperature through the temperature setting unit 211 in the automatic temperature mode for controlling the indoor temperature of the winter vehicle The temperature control unit 201 controls driving of the intake door 221, the mode door 222, the temp door 223, and the blower motor 224 in order to maintain the set room temperature.

Here, in order to compensate for the vehicle body cooling of the vehicle during the cold weather, the automatic temperature controller 201 not only detects the temperature detected by the indoor temperature sensor 212 and the outside air temperature sensor 213 but also the vehicle speed sensor 215 and the wind speed sensor 216. Input the value detected in).

The automatic temperature controller 201 calculates the detected value and automatically adjusts the direction, temperature, and wind speed of the warm air discharged into the room according to the result, and the intake door 211, the mode door 222, and the temp door 223. And the blower motor 224.

The process of automatically adjusting the room temperature in consideration of the values detected by each sensor by the automatic temperature control unit 201 will be described with reference to FIG. 3.

3 is a flowchart of a heating control process according to vehicle body cooling according to a preferred embodiment of the present invention, and initializes each sensor and each air conditioning system as the ignition switch IGN of the vehicle is turned on (S102).

In the initial mode, when the occupant selects the automatic temperature control mode to automatically adjust the indoor temperature of the vehicle (S104), and sets the target temperature through the temperature setting unit 211 (S106), the automatic temperature control unit 201 determines the outside temperature. The sensor 213, the indoor temperature sensor 212, the timer 214, and the vehicle speed sensor 215 receive the respective detection values and operate the mode door 222 to adjust the wind direction.

The automatic temperature controller 201 drives each air conditioning system to maintain the set target temperature. At this time, the wind direction is to maintain the wind direction in the floor mode.

That is, if the outside temperature is within 0 ° C, the running time is 30 minutes or more, the running speed of the vehicle is higher than 40KPH (km / hour), and the room temperature reaches the target temperature (within ± 2 ° C), The correction is performed accordingly. (S108 to S114)

Correction of indoor heat loss according to the cooling of the vehicle sets the number of swings and the cycle and the holding time of each wind direction mode according to the outside temperature.

Herein, the swing controls the mode door 222 under the control of the automatic temperature control unit 201 to change the discharge wind direction. It means to repeat the wind direction conversion cycle of bilevel-> floor mode.

The holding time of the bi-level and face mode is set by dividing each quarter of the cycle according to the swing frequency.

5A shows the maximum swing frequency set (6 times, adjustable) when the outside temperature is set below -30 ° C (adjustable), and the swing frequency is maximum when the outside temperature is between -30 ° C and 0 ° C. It is decided within six times).

The swing function and the mode door operation are performed according to the set swing number, cycle, and discharge direction maintaining time.

If the outside temperature, the vehicle's continuous driving time, the vehicle speed, or the room temperature is outside the set value during the swing operation, it switches to the normal automatic temperature control mode. At this time, the mode door returns to the floor mode to adjust the wind direction. (S107)

4 is a flowchart of a heating control process according to the vehicle body cooling according to another embodiment of the present invention, the same parts as in the preferred embodiment are given the same reference numerals and detailed description thereof will be omitted.

When the occupant sets the target temperature in the automatic temperature control mode, the automatic temperature controller 201 controls each air conditioning system to maintain the set target temperature. (S102 to S107)

On the other hand, from the respective sensors 212 to 216, the indoor temperature, the outside temperature, the vehicle traveling speed, and the wind speed during the vehicle driving are respectively detected, and heating control according to the vehicle body cooling is performed according to the result.

That is, the outside temperature is less than 0 ℃ (S108), the running time is longer than 30 minutes (S110), the room temperature reaches the target temperature (within ± 2 ℃) (S114), the deviation of the vehicle speed and wind speed is set value In the case of the above, the automatic temperature control unit 201 proceeds to the heating control mode to compensate for the heat loss in the room due to the cooling of the vehicle body.

The heating control mode sets the swing frequency and cycle according to the deviation of the outside temperature, the vehicle speed, and the wind speed, sets the bi-level and face mode holding time, and sets the discharge temperature correction amount (S124).

Here, the swing frequency and cycle, the bi-level and face mode holding time setting, and the discharge temperature correction amount setting will be described with reference to FIGS. 5A to 5D.

Since the setting for the swing count is the same as that of the preferred embodiment, as shown in FIG. 5A, the description thereof is omitted.

Figure 5b is a graphical display for setting the swing frequency in accordance with the difference between the vehicle speed and the wind speed, the swing frequency is not necessary to compensate for the indoor temperature according to the cooling of the vehicle while the vehicle is stopped, the highest when the difference between the vehicle speed and wind speed is more than 50KPH Set to swing the set value (4 times), and if the difference is within 50 KPH, set it within the maximum set value. Here, the maximum set value and the threshold set value of the vehicle speed and wind speed may be varied in the automatic temperature control unit 201 for arbitrarily comfortable operation of the occupant.

FIG. 5C is a control graph display diagram of the temp door for correcting the discharge temperature. FIG. 5C is a discharge mode when the discharge direction is in the bi-level or face mode than when the discharge direction is in the floor mode. Adjust the position of the tempdoor 223 to make the temperature higher (TD1-> TD2).

FIG. 5D is a control graph display diagram of the blower motor for correcting the discharge temperature, and adjusts the discharge air volume of the blower so that the discharge temperature is higher in the bi-level or face mode than in the discharge mode in the floor mode.

That is, in the floor mode, the blower motor 224 is rotated so that the blower switch corresponds to the low stage BS1 to discharge the low air volume, and gradually increases the air volume when moving to the bi-level or face mode to set the air volume BS2. Rotate the blower motor 224 to hold until.

Although a preferred embodiment according to the present invention has been described above, the reference values and factors such as the outside temperature, the driving duration, the vehicle speed, or the difference between the vehicle speed and the wind speed for the correction of the vehicle cooling can be variously changed. It will be understood by those skilled in the art that various modifications and variations can be made without departing from the scope of the claims of the invention.

As described above, the heating control method according to the body cooling according to the present invention is discharged to compensate for the indoor heat loss due to the body cooling due to the vehicle's outside temperature, running time, vehicle speed, wind speed, etc. By adjusting and controlling the air conditioning system such as the temperature, the discharge air volume and the wind direction, it is possible to prevent the upper body of the occupant and the shoulder stiffness of the occupant due to the cooling of the vehicle body, thereby keeping the interior atmosphere of the vehicle warm and comfortable.

Claims (7)

In the indoor temperature automatic control method of the vehicle, the automatic control of the air conditioning system to control the air conditioning system so that the indoor temperature maintains the set target temperature, A first step of detecting a vehicle cooling degree according to a driving time and a driving speed when the outside temperature of the vehicle is lower than a set temperature; And And a second step of automatically converting the discharge wind direction mode to a predetermined interval when the indoor temperature reaches a target temperature when the driving time and the vehicle speed of the vehicle are equal to or greater than a set value. Heating control method according to the cooling of the vehicle body. The vehicle body according to claim 1, wherein when the outside air temperature detected in the first step is equal to or higher than the set temperature, when the driving time is within the set time or when the vehicle speed is within the set driving speed, the vehicle body is characterized in that the vehicle body is maintained in the automatic mode. Heating control method by cooling. The method of claim 1, wherein when the indoor temperature reaches the target temperature in addition to the second step, after detecting the driving speed and the wind speed of the vehicle, if the deviation is equal to or greater than the set value, the indoor heat loss due to the vehicle body cooling is compensated And automatically converting the wind direction and the discharge temperature to be discharged to a predetermined interval so as to control the heating according to the vehicle body cooling. The method of claim 1 or 3, wherein the wind direction discharge mode in the second step is to switch the floor, the bi-level, the face, the bi-level, the floor mode to a predetermined interval and repeat the control. Heating control method according to the body cooling. The heating control method according to claim 4, wherein the repetition frequency of the wind direction discharge mode is determined according to the outside air temperature or the difference between the vehicle speed and the wind speed. 4. The heating control method according to claim 3, wherein the discharge temperature conversion in the second step further opens the temporal door in the bi-level mode or the face mode than when the wind direction mode is the floor discharge mode. . 4. The heating control method according to claim 3, wherein the discharge temperature conversion in the second step increases the air volume when the discharge wind direction is in the bi-level or face discharge mode than in the floor discharge mode.

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