KR19990000949A - Oxygen amount control system of car interior and its control method - Google Patents

Abstract

The present invention relates to an oxygen amount control system for a vehicle interior and a control method thereof. More particularly, the present invention relates to an oxygen amount control system for a vehicle interior and a method of controlling the same, which allow a driver to travel comfortably by easily controlling the oxygen amount in a vehicle interior. It is about.

The present invention provides an automatic switch that the operator operates to automatically control the amount of oxygen in the room, a carbon oxide sensor installed at the inlet of the duct communicating with the outside air and the room to detect carbon monoxide mill carbon dioxide, and a filter installed at the inlet of the duct. Filter sensor installed at the rear to detect filter replacement time, oxygen sensor installed at the room to detect the amount of oxygen, operated by the operation of this auto switch, and compared with the output values of carbon dioxide sensor, filter sensor and oxygen sensor A control means for judging and outputting an electrical signal, a switching motor driven by an electrical signal output from the control means and driving a diaphragm closing the passage of the duct; Is forcibly moved and operated by the signal output from this control means And a blow assembly in which the intensity of the light is adjusted and an alarm activated by the control means and emitting an alarm when the driver replaces the filter with one or more of light or sound.

Furthermore, the present invention provides an input step of inputting output values of an oxygen sensor, a carbon oxide sensor, and a filter sensor, a judgment step of receiving an input value from the input step and comparing the amount of oxygen with the amount of carbon oxide, and switching the result of the decision step. Control of the oxygen amount control system in the vehicle interior comprising a control step of controlling the operation of the motor and the blow motor, and a filter change notification step of receiving an input value from the input step and determining a filter replacement time to recognize a driver as necessary. Provide a method.

Description

Oxygen amount control system of car interior and its control method

The present invention relates to an oxygen amount control system for a vehicle interior and a control method thereof. More particularly, the present invention relates to an oxygen amount control system for a vehicle interior and a method of controlling the same, which allow a driver to travel comfortably by easily controlling the oxygen amount in a vehicle interior. It is about.

In general, air conditioning and heating devices provide a comfortable environment for people who ride in a car in all climates and driving conditions, and prevent a frost that blurs a window, thereby securing a driver's watch so that safe and comfortable driving is possible.

Thus, a car is provided with a diaphragm that allows the inside and the outside to circulate inside and outside selectively by installing a duct from inside to outside and inside to inside.

A blow assembly is installed inside the duct to force the air in the duct to flow.

The duct is installed in the duct to reduce the temperature by allowing the air inside to pass through the evaporator, and a heater is installed to raise the temperature by allowing the air inside to pass through this heater, and the air is applied to the heater. A device is installed to allow passage or bypass.

However, in the related art, the air in the duct is circulated by the operation of the control switch assembly installed in front of the driver's seat or fresh air of the outside air is introduced into the vehicle. Therefore, the amount of oxygen in the vehicle or the amount of carbon oxide in the outside air is not adjusted automatically. There is a problem.

Therefore, the present invention is to solve such a conventional problem, an object of the present invention is to easily control the amount of oxygen in the car interior and control the carbon oxides from the outside air to control the amount of oxygen in the car interior that the driver can run comfortably And a control method thereof.

In order to achieve the object as described above, the present invention is a carbon oxide sensor that detects carbon monoxide mill carbon dioxide is installed at the inlet of the auto switch, the outside air and the duct communicates with the driver to automatically control the amount of oxygen in the room A filter sensor installed at the rear of the filter installed at the inlet of the duct to detect the time of replacement of the filter, an oxygen sensor installed in the room to detect the amount of oxygen, and operated by the operation of the auto switch. A control means for receiving the output values of the sensor and the oxygen sensor and comparing them, and outputting an electrical signal; a switching motor driven by an electrical signal output from the control means and driving a diaphragm closing the passage of the duct, the duct Is installed inside the center of the duct to force the movement of air in this duct The amount of oxygen in the cabin of the vehicle, which consists of a blow assembly whose intensity of operation is adjusted by a signal output from the air means, and an alarm which is actuated by this control means and emits when the driver changes the filter to one or more of light or sound. Provide a control system.

Furthermore, the present invention provides an input step of inputting output values of an oxygen sensor, a carbon oxide sensor, and a filter sensor, a judgment step of receiving an input value from the input step and comparing the amount of oxygen with the amount of carbon oxide, and switching the result of the decision step. Control of the oxygen amount control system in the vehicle interior comprising a control step of controlling the operation of the motor and the blow motor, and a filter change notification step of receiving an input value from the input step and determining a filter replacement time to recognize a driver as necessary. Provide a method.

1 is a block diagram showing a system for controlling the amount of oxygen in an automobile interior according to the present invention.

2 is a flowchart illustrating a control method of an oxygen amount control system in a vehicle interior according to the present invention.

Explanation of symbols for the main parts of the drawings

1: auto switch 3: carbon oxide sensor

5: filter sensor 7: oxygen sensor

9: telephone motor 11: blow assembly

13: warning unit 15: electronic controller

17: motor controller 19: duct

Exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

Fig. 1 is a configuration diagram showing the system of the present embodiment, in which the control means compares the output values from the carbonization sensor 3, the filter sensor 5, and the oxygen sensor 7 by the driver's auto switch 1 operation. By judging, the switching motor 9, the blow assembly 11, and the alarm 13 are controlled to adjust the amount of oxygen in the vehicle interior or the amount of carbon monoxide and carbon dioxide in the outside air to a comfortable environment.

The control means is operated by the operation of the auto switch 1, and receives the output values of the carbon oxide sensor 3, the filter sensor 5, the oxygen sensor 7 and the like to compare and determine the electrical By outputting a signal, the amount of carbon monoxide and carbon dioxide from the carbon oxide sensor 3, the amount of oxygen from the oxygen sensor 7, and the output values of the filter sensor 5 are received and compared with these values, It is determined whether the oxygen amount belongs to a reference set value, whether carbon monoxide and carbon dioxide flows from the outside of the reference set value or more, and whether the filter needs to be replaced, and the electronic controller 15 which outputs the result of the determination as a signal. It consists of a motor controller 17 which receives a signal from the electronic controller 15 and controls the motor of the blow assembly 11 and the switching motor 9 described above.

The carbon oxide sensor 3 is installed at the inlet of the duct 19 that communicates with the outside air and the room has a structure for detecting carbon monoxide mill carbon dioxide.

The filter sensor 5 is installed at the rear of the filter 21 installed at the inlet of the duct 19 to detect the replacement time of the filter 21, the oxygen sensor 7 is a vehicle Installed in the room to detect the amount of oxygen in the room.

The switching motor 9 is connected to the motor controller 17 and operated by an electrical signal output therefrom, thereby driving the diaphragm 23 closing the passage of the duct 19.

The blow assembly 11 is installed in the inner central portion of the duct 19 to forcibly move the air in the duct 19, and operates the motor operated by the signal output from the motor controller 17. It has a structure in which the strength is adjusted by this signal.

The alarm 13 is operated by the electronic controller 15 and causes the driver to divert the filter to one or more of light or sound.

Such a device is operated when the driver operates the auto switch 1, and operates as shown in the flowchart shown in FIG.

The apparatus of the present embodiment includes an input step in which output values of an oxygen sensor, a carbon oxide sensor, and a filter sensor are input, a judgment step of receiving an input value from the input step and comparing the amount of oxygen with the amount of carbon oxide, by the judgment of this decision step The control step of controlling the operation of the switching motor and the blow motor, and the filter replacement notification step of determining the time to replace the filter by receiving the input value from the input step to recognize the driver as necessary.

Herein, when the driver operates the auto switch 1, it is determined (S10).

If the auto switch 1 is on, it is determined whether the amount of oxygen from the oxygen sensor 7 is greater than the first set value (S20).

If the amount of oxygen is less than the first set value, it is determined whether the amount of oxygen is greater than the second set value, and if the amount of oxygen is greater than the second set value, the flow proceeds to the control step (S30).

And the above control step has a step (S31) to operate the switching motor 9 to control the outside air to pass through the duct 23, and to operate the blow motor in one stage.

If the amount of oxygen is less than the second set value, it is determined whether the amount of oxygen is greater than the third set value, and if the amount of oxygen is greater than the third set value, the control proceeds to step S40.

And the above control step includes the step (S41) for operating the switching motor 9 to control the outside air to pass through the duct 23, and to operate the blow motor in two stages.

If the amount of oxygen is less than the third set value, it is determined whether the amount of oxygen is greater than the fourth set value, and if the amount of oxygen is greater than the fourth set value, the process proceeds to the control step (S50).

And the control step further comprises the step (S51) for operating the switching motor 9 to control the outside air to pass through the duct 23, and to operate the blow motor in three stages.

If the amount of oxygen is smaller than the fourth set value, it is determined whether the amount of oxygen is smaller than the fifth set value, and if the amount of oxygen is smaller than the fifth set value, the flow proceeds to the control step (S60).

And the control step further comprises the step (S61) of operating the switching motor 9 to control the outside air to pass through the duct 23, the blow motor is operated in four stages.

The first set point is larger than the second set point, the second set point is larger than the third set point, the third set point is larger than the fourth set point, and the fourth set point is larger than the fifth set point.

In addition, when the oxygen amount is greater than the first set value or passes through the control step, it is determined whether the amounts of carbon monoxide and carbon dioxide are larger than the sixth set value, and if the amount is larger than the sixth set value, the control proceeds to the control step again (S70). ).

In the controlling step, when the amount of carbon monoxide and carbon dioxide contained in the air introduced into the outside from the outside is greater than the sixth set value, the switching motor 9 is operated to block the outside air from entering the vehicle interior. It further includes a step (S71) of closing the passage of the duct 23 to be blocked from the outside air.

On the other hand, it is determined whether or not to replace the filter 21 by receiving the output value from the filter sensor 5 and making a comparison judgment (S80).

If it is determined in step S80 that the filter 21 is to be replaced, the electronic controller 15 outputs an electrical signal to the alarm 13, which is one of light or sound. Or diverges more than to recognize the driver (S90).

And if it is determined in the step (S80) that it is not the replacement time of the filter 21, the alarm 13 is not activated (S91).

As described above, the system of the present invention and its control method are supplemented by introducing the outside air in multiple stages by insufficient amount of oxygen in the interior of the vehicle by the driver's auto switch operation, and prevents a large amount of carbon oxide from the outside air. By doing so, there is an advantage that the driver can easily drive safely by improving the environment of the interior of the vehicle.

It is apparent to those skilled in the art that the present invention is not limited to the described embodiments, and that various modifications and changes can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to belong to the claims of the present invention.

Claims (6)

Auto switch operated by the driver to automatically control the amount of oxygen in the room, A carbon oxide sensor installed at the inlet of the duct that communicates with the outside air to detect carbon monoxide mill carbon dioxide, A filter sensor installed at the rear of the filter installed at the inlet of the duct and detecting a filter replacement time, Oxygen sensor installed in the room to detect the amount of oxygen, Control means which is operated by operation of the auto switch and receives the output values of the carbon oxide sensor, the filter sensor and the oxygen sensor and compares them and outputs an electrical signal; A switching motor operated by an electrical signal output from the control means and driving a diaphragm closing the passage of the duct, A blow assembly installed in the inner center of the duct forcibly moving air in the duct and adjusting the strength of operation by a signal output from the control means; And an alarm actuated by the control means and configured as an alarm for discharging the filter replacement time from the driver to one or more of lights or sounds. The control means according to claim 1, wherein the control means receives the carbon monoxide and carbon dioxide amount from the carbon oxide sensor, the oxygen amount from the oxygen sensor, and the output value of the filter sensor, and compares these values so that the oxygen amount in the vehicle interior is set to a certain reference set value. Electronic controller to determine whether it belongs to the outside, whether carbon monoxide and carbon dioxide flows out of the reference set value from the outside air, and whether the filter needs to be replaced. And a motor controller for receiving a signal from the electronic controller and controlling the motor of the blow assembly and the switching motor. An input stage in which the output values of the oxygen sensor, carbon oxide sensor and filter sensor are inputted, A judgment step of taking an input value from this input step and comparing the amount of oxygen with the amount of carbon oxides, A control step of controlling the operation of the switching motor and the blow motor in accordance with the judgment of this judgment step, And a filter replacement notification step of receiving an input value from the input step to determine a filter replacement time and recognizing the driver as necessary. The method of claim 3, wherein the determining step comprises: determining whether the auto switch is on; Determining whether the amount of oxygen from the oxygen sensor is greater than the first set value when the auto switch is on; If the oxygen amount is less than the first set value, determining whether the oxygen amount is more than the second set value, and if the oxygen amount is more than the second set value, proceeding to the above control step; If the oxygen amount is less than the second set value, it is determined whether the oxygen amount is more than the third set value, and if the oxygen amount is more than the third set value, the process proceeds to this control step; If the oxygen amount is less than the third set value, determining whether the oxygen amount is more than the fourth set value; and if the oxygen amount is more than the fourth set value, proceeding to this control step, If the oxygen amount is less than the fourth set value, determining whether the oxygen amount is less than the fifth set value; and if the oxygen amount is less than the fifth set value, proceeding to this control step, And when the amount of oxygen is greater than or equal to the first set point or passes through the control step, it is determined whether the amounts of carbon monoxide and carbon dioxide are greater than or equal to the sixth set point. Control Method of Oxygen Volume Control System in Automobile Interior 5. The method of claim 4, wherein the controlling step comprises the steps of: operating the switching motor to open the passage of the duct with the outside air and operating the blow motor in one stage if the oxygen amount is greater than the second set value; Operating the switching motor to open the passage of the duct to the outside air and operating the blow motor in two stages when the oxygen amount is greater than the third set value; If the oxygen amount is more than the fourth set value by operating the switching motor to open the passage of the duct to the outside air and to operate the blow motor in three stages, When the oxygen amount is less than the fifth set value, operating the switching motor to open the passage of the duct to the outside air and operating the blow motor in five stages, And controlling the oxygen amount control system in the vehicle interior, wherein the amount of carbon dioxide and carbon monoxide is greater than or equal to the sixth set value, by operating a switching motor to close the passage of the duct with outside air. The method of claim 3, wherein the notification of replacing the filter comprises: comparing the output value from the filter sensor to determine whether to replace the filter; If it is determined that the filter is to be replaced, outputting an electrical signal to the alarm to activate the alarm; The control method of the oxygen amount control system of a vehicle interior which consists of a step which makes an alarm not to operate when it is determined that it is not this filter replacement time.