KR20160097832A - Inside and outside air mode switching method and apparatus of HVAC for vehicle - Google Patents

Inside and outside air mode switching method and apparatus of HVAC for vehicle Download PDF

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Publication number
KR20160097832A
KR20160097832A KR1020150020187A KR20150020187A KR20160097832A KR 20160097832 A KR20160097832 A KR 20160097832A KR 1020150020187 A KR1020150020187 A KR 1020150020187A KR 20150020187 A KR20150020187 A KR 20150020187A KR 20160097832 A KR20160097832 A KR 20160097832A
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KR
South Korea
Prior art keywords
mode
rate
vehicle
hvac module
vehicle speed
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Application number
KR1020150020187A
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Korean (ko)
Inventor
이성호
변종영
박상훈
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이래오토모티브시스템 주식회사
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Priority to KR1020150020187A priority Critical patent/KR20160097832A/en
Publication of KR20160097832A publication Critical patent/KR20160097832A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B60H1/00764—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being a vehicle driving condition, e.g. speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
    • B60H1/00835—Damper doors, e.g. position control
    • B60H1/00849—Damper doors, e.g. position control for selectively commanding the induction of outside or inside air

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

An object of the present invention is to provide an internal and external mode switching method of an HVAC module for an automobile which can change a value which is a criterion for internal and external mode switching according to environment change. To this end, an in-vehicle / outdoor mode switching method of an HVAC module for an automotive vehicle according to the present invention is a method for switching an in-vehicle / outdoor mode of an automotive HVAC module considering a bet rate representing a time ratio of an ad- Receiving the sensed gas concentration in real time; Determining whether the absolute value of the difference between the current gas concentration and the previous gas concentration received in real time exceeds a reference value; Switching to the bet mode when the absolute value exceeds the reference value; If the vehicle speed is high according to the vehicle speed, weighting the endurance ratio relatively, and if the vehicle speed is low, adjusting the endurance percentage by relatively decreasing the endurance rate during the admission mode; And raising the reference value relatively if the rate of betting is high according to the adjusted betting rate, and lowering the benchmark value relatively if the betting rate is low.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an internal and external air mode switching method and apparatus for an HVAC module for an automobile,

The present invention relates to an automotive HVAC module.

Generally, a cooling and heating apparatus of a vehicle is used to provide a comfortable environment for a passenger by appropriately maintaining an air environment such as temperature and humidity in accordance with a change in ambient temperature.

A heating, ventilating and air conditioning (HVAC) module, which is an air conditioning unit used as a cooling / heating unit of a vehicle, includes a fan for flowing air, an evaporator for cooling air, and a heater for heating air. And the air is supplied to the room of the vehicle through the vent portion forming the ventilation hole by flowing the air through the evaporator or the heater.

In particular, in the case of a vehicle equipped with a gas sensor, it is determined whether to select an outdoor mode or an adventure mode in the HVAC module by using the gas concentration of the outside air detected by the gas sensor. The outside air mode is to introduce air outside the vehicle into the room, and the air condition mode is to shut off air inflow outside the vehicle and circulate air in the room.

However, in the conventional internal / external mode switching method, when the gas concentration of the outside air is larger than the reference value, the simple mode is switched to the inside mode, and when the gas concentration of the outside air is smaller than the reference value, There is a problem that it is not possible to reflect the difference felt by the occupant in the rural and urban environments.

For example, even if a small concentration of exhaust gas enters a room in a city, a passenger does not recognize it. In the case of a small concentration of exhaust gas entering the room, a passenger feels sensitive. However, Can not reflect this.

An object of the present invention is to provide an in-vehicle / outdoor mode switching method and a switching device of an HVAC module for an automobile which can vary a value which is a criterion for internal / external mode switching according to an environment change.

In order to achieve the above object, an in-vehicle / outdoor mode switching method of an HVAC module for an automobile according to an embodiment of the present invention is a method for switching between an inside / outside mode of an HVAC module for an automobile in consideration of a bet rate representing a time ratio of an ad- A mode switching method comprising: receiving a gas concentration sensed by a gas sensor in real time; Determining whether the absolute value of the difference between the current gas concentration and the previous gas concentration received in real time exceeds a reference value; Switching to the bet mode when the absolute value exceeds the reference value; If the vehicle speed is high according to the vehicle speed, weighting the endurance ratio relatively, and if the vehicle speed is low, adjusting the endurance percentage by relatively decreasing the endurance rate during the admission mode; And raising the reference value relatively if the rate of betting is high according to the adjusted betting rate, and lowering the benchmark value relatively if the betting rate is low.

The method for switching the in-vehicle / outdoor mode of an HVAC module for an automobile according to an embodiment of the present invention may further include setting the HVAC module to an initial value prior to the step of receiving the gas concentration between actual flights .

The method for switching the inside / outside mode of an HVAC module for a vehicle according to an embodiment of the present invention includes: determining whether a starting key position of the automobile is turned off; And storing the adjusted eardratio in the memory such that the adjusted eardratio is reflected in the initial value when the starting key position of the automobile is turned off; And reflecting the stored bet rate to the initial value when the starting key position of the automobile is turned on.

Meanwhile, the indoor / outdoor mode switching device of the HVAC module for an automobile according to the embodiment of the present invention is an indoor / outdoor mode switching device of an HVAC module for an automobile, taking into consideration an interest rate indicating a time ratio of an admission mode for a predetermined total time, A gas sensor for sensing in real time the gas concentration of the outside air; A vehicle speed sensor for detecting the vehicle speed of the automobile; An switching unit switching the inside / outside mode; And a controller that is operated by a program set to switch the inside / outside mode in consideration of the rate of eclipse, the gas concentration, and the vehicle speed, wherein the set program is a program for operating the automotive HVAC module And a series of commands for performing the inner / outer mode switching method.

As described above, the internal / external mode switching method and switching device of the HVAC module for an automobile according to the embodiment of the present invention can have the following effects.

According to the embodiment of the present invention, when the vehicle speed is high according to the vehicle speed during the betting mode, a weight is given to the betting rate (the ratio of the betting mode to the predetermined total time) relatively, The reference value is varied in such a manner as to adjust the betting rate by giving a reduction value to the betting rate and raise the benchmark value relatively if the betting rate is high according to the adjusted betting rate and relatively lower the benchmark value if the betting rate is low , It may be possible to switch the inside and outside of the vehicle to suit the environment change. That is, it is possible to consider the change of the environment by using the vehicle speed of the vehicle. For example, when the vehicle speed is high, the change of the environment can be considered to be large, In the case where the indoor air temperature is low, it is considered that the environmental change is small, so that the indoor air rate can be reduced to the outdoor air mode. In addition, It is possible to induce to the outside air mode by raising the reference value relative to the reference value, and the rate of betting is low due to high cleanliness in the rural environment. However, the occupant may be more sensitive to the exhaust gas than the urban environment. It can be guided to the bet mode.

1 is a block diagram schematically showing an internal and external mode switching device of an automotive HVAC module according to an embodiment of the present invention.
FIG. 2 is a flowchart schematically illustrating a method for switching an in-vehicle / outdoor mode of an automotive HVAC module according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

1 is a block diagram schematically showing an internal and external mode switching device of an automotive HVAC module according to an embodiment of the present invention.

The indoor / outdoor mode switching device of the HVAC module for an automobile according to an embodiment of the present invention is an indoor / outdoor mode switching device of an HVAC module for an automobile, taking into consideration the rate of betting (time ratio of bet mode with respect to a predetermined total time) Includes a gas sensor 110, a vehicle speed sensor 120, a switching portion 130, and a controller 140, as shown in Fig.

The gas sensor 110 serves to detect the gas concentration of the outside air in real time. For example, the real time may have a period of about 0.5 seconds, 1 second, 10 seconds, 20 seconds, and so on. The vehicle speed sensor 120 detects the vehicle speed of the vehicle.

The switching unit 130 switches the inside / outside mode, and can be realized by a damper (not shown) or the like placed on a duct (not shown).

The controller 140 may be embodied as one or more microprocessors, memories, etc., operated by a program configured to switch the indoor / outdoor mode in consideration of the rate of eclipse, gas concentration, and vehicle speed. And a series of instructions for carrying out the method of an embodiment of the invention.

Hereinafter, a method of switching between an in-vehicle mode and an in-out mode of an automotive HVAC module according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2. FIG.

FIG. 2 is a flowchart schematically illustrating a method for switching an in-vehicle / outdoor mode of an automotive HVAC module according to an embodiment of the present invention.

The in-vehicle / outdoor mode switching method for an automotive HVAC module according to an embodiment of the present invention is a method for switching an in-vehicle / outdoor mode of an automotive HVAC module taking into account the bet rate (time ratio of the bet mode with respect to the predetermined total time) The HVAC module (not shown) is set as an initial value (S105). Specifically, when the ignition key position of the automobile is turned on, power is applied to the controller 140 and an initialization routine is performed by the controller 140.

In step S160, it is determined whether or not the starting key position of the automobile is turned off (S160). If the starting key position is turned off, the adjusted rate is stored in the memory 141 (S170) In the initialization routine, the stored betting rate may be reflected to the initial value (S105). The reason is that even if the starting key of the vehicle is turned off and then turned on again, the position of the car is not changed, so the same environment can be maintained. In particular, if the previous value is reflected as it is, the load on the controller 140 and the like can be minimized in the process of initializing the controller 140.

Thereafter, the controller 140 receives the gas concentration sensed by the gas sensor 110 in real time. The sampling time of the signal may be any one of a number of sampling periods, such as approximately 0.5 second, 1 second, 10 seconds, 20 seconds, or a combination thereof.

Then, the controller 140 determines whether the absolute value of the difference between the current gas concentration [V (t)] and the previous gas concentration [V (t-1)] received in real time exceeds the reference value? V ).

If the absolute value exceeds the reference value? V, the controller 140 determines that the outside air is contaminated and switches to the bet mode using the switching unit 130 (S130).

If the vehicle speed is high according to the vehicle speed sensed by the vehicle speed sensor 120 during the switching to the intermittent mode, a weight is given relatively to the betting rate. If the vehicle speed is low, a relatively low betting rate is given to the betting rate, (S140). Here, "weighting" means increasing the reflection ratio, and "giving a reduction value" means lowering the reflection ratio. Therefore, it is possible to consider the change of the environment by using the vehicle speed of the vehicle. For example, when the vehicle speed is high, the change of the environment can be considered to be large, If the speed is low, the change in the environment can be considered to be small, and the rate of betting can be reduced to induce the outdoor mode, thereby enabling the switching between the inside and the outside according to the environment change.

At the same time, the reference value is varied (S150) in such a manner that the reference value? V is relatively increased when the rate of betting is higher according to the adjusted betting rate, and is lowered relatively when the bet rate is lower. Therefore, in the urban environment with relatively high pollution level compared to the rural area, indoor air can be turbid due to high rate of betting, so that it is possible to induce outdoor mode by increasing the reference value (ΔV). In the case of rural environment, The passenger can be more sensitive to the external exhaust gas than the urban environment, so that the reference value (? V) can be lowered to the exhaust mode relative to the city center. In addition to the case in which the above vehicle speed is taken into consideration, Can be switched.

As described above, the indoor / outdoor mode switching method and the switching device of the HVAC module for an automobile according to the embodiment of the present invention can have the following effects.

According to an embodiment of the present invention, during the course of the betting mode, when the vehicle speed is high according to the vehicle speed, a weight is given to the betting rate (the ratio of the betting mode to the predetermined total time) A technique is proposed in which the reference value is varied in such a manner that the reference value is relatively increased when the betting rate is high and the reference value is relatively low when the betting rate is low according to the adjusted betting rate Therefore, it is possible to switch between inside and outside in accordance with the environment change. That is, it is possible to consider the change of the environment by using the vehicle speed of the vehicle. For example, when the vehicle speed is high, the change of the environment can be considered to be large, In the case where the indoor air temperature is low, it is considered that the environmental change is small, so that the indoor air rate can be reduced to the outdoor air mode. In addition, It is possible to induce to ambient mode by raising reference value relatively, and it is low in rate of vacancy due to high cleanliness in rural environment. However, passenger can be sensitive to external exhaust gas compared to urban environment, It can be guided to the bet mode.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

110: gas sensor line 120: vehicle speed sensor
130: switching section 140: controller

Claims (4)

The method for switching an in-vehicle / outdoor mode of an HVAC module for an automobile, which takes into account the betting rate indicating a time ratio of the bet mode with respect to a predetermined total time,
Receiving the gas concentration sensed by the gas sensor in real time;
Determining whether the absolute value of the difference between the current gas concentration and the previous gas concentration received in real time exceeds a reference value;
Switching to the bet mode when the absolute value exceeds the reference value;
If the vehicle speed is high according to the vehicle speed, weighting the endurance ratio relatively, and if the vehicle speed is low, adjusting the endurance percentage by relatively decreasing the endurance rate during the admission mode; And
Increasing the reference value relatively if the rate of the bet rate is high according to the adjusted bet rate, and lowering the benchmark value relatively if the bet rate is low
Wherein the HVAC module is mounted on a vehicle. The method of claim 1,
The indoor / outdoor mode switching method of the automotive HVAC module includes:
Prior to the step of receiving the gas concentration between the actual measurements, setting the HVAC module to an initial value
Further comprising the steps of: determining whether the HVAC module is in operation; 3. The method of claim 2,
The indoor / outdoor mode switching method of the automotive HVAC module includes:
Determining whether the starting key position of the vehicle is turned off; And
Storing the adjusted betting rate in the memory so that the adjusted betting rate is reflected in the initial value when the starting key position of the automobile is turned off
Further comprising the steps of: determining whether the HVAC module is in operation; An internal / external mode switching device of an HVAC module for an automobile, which takes into account an odds ratio indicating a time ratio of an admission mode to a predetermined total time,
A gas sensor for sensing in real time the gas concentration of the outside air;
A vehicle speed sensor for detecting the vehicle speed of the automobile;
An switching unit switching the inside / outside mode; And
And a controller operated by a program configured to switch the inside / outside mode in consideration of the rate of eclipse, the gas concentration, and the vehicle speed,
The set program comprises a series of instructions for carrying out the method according to any one of claims 1 to 3.
KR1020150020187A 2015-02-10 2015-02-10 Inside and outside air mode switching method and apparatus of HVAC for vehicle KR20160097832A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150020187A KR20160097832A (en) 2015-02-10 2015-02-10 Inside and outside air mode switching method and apparatus of HVAC for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150020187A KR20160097832A (en) 2015-02-10 2015-02-10 Inside and outside air mode switching method and apparatus of HVAC for vehicle

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