KR100932213B1 - Vehicle heating system and its control method - Google Patents

Abstract

It is an object of the present invention to provide a heating system for a vehicle and a method of controlling the same, which enable rapid heating of a vehicle interior at the initial stage of starting a vehicle engine without using a separate combustor.

The present invention for achieving the above object, the cooling water discharged from the engine is configured to enter the engine again by the pumping of the water pump via the main heater or a radiator in accordance with the temperature of the cooling water in the thermostat in a vehicle heating system An auxiliary heater installed on a cooling water flow path between the radiator and the main heater, the auxiliary heater allowing the cooling water to be heated by microwaves; A control means for controlling the auxiliary heater, wherein the auxiliary heater comprises: an auxiliary heater case made of electromagnetic shielding material having a cooling water inlet and a cooling water outlet; Microwaves are generated inside the auxiliary heater case and heat the cooling water contained therein, and are composed of a magnetron having a waveguide for transmitting the microwaves to the cooling water. The auxiliary heater case includes vibration means for vibrating the cooling water. It is characterized by.

In addition, the control method of a vehicle heating system according to the present invention for achieving the above object comprises a first step of determining whether the rapid heating mode switch is turned on and the rapid heating mode after the power is turned on the engine; A second step of operating the magnetron in the rapid heating mode as a result of the determination of the first step; A third step of determining whether the temperature of the present cooling water sensed by the temperature sensing means is equal to or higher than a set temperature; A fourth step of operating the bypass means such that the cooling water discharged from the thermostat is bypassed to the main heater when the temperature of the cooling water is greater than or equal to the predetermined temperature as a result of the determination in the third step; And a fifth step of stopping the operation of the magnetron after the fourth step, and operating the vibration means for vibrating the coolant contained in the auxiliary heater case after the second step. Next, the third step is performed.

Description

A heating method and system for controlling the vehicle {A control method and system for heating of vehicles}

1 is a block diagram showing a vehicular heating system according to the prior art.

2 is a view showing the configuration of a vehicle heating system according to the present invention.

3 is a view showing the configuration of a vehicle heating system according to another embodiment of the present invention.

4 is a view showing the internal configuration of the auxiliary heater of the present invention.

5 is a view showing a position where the coolant inlet and the coolant outlet are formed in the auxiliary heater case of the present invention.

Figure 6 is a view of another embodiment showing the position where the coolant inlet and the coolant outlet are formed in the auxiliary heater case of the present invention.

7 is a control flowchart of the present invention.

8 is a control block diagram of the present invention.

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

10: engine

11: thermostat

20: main heater                 

30: radiator

40: water pump

50: auxiliary heater

51: auxiliary heater case

52: magnetron

The present invention relates to a vehicle heating system and a control method thereof, and more particularly, to a vehicle heating system capable of rapidly heating a vehicle interior at the initial stage of starting a vehicle engine using microwaves without using a separate combustor. It relates to a control method.

In general, the vehicle is equipped with a heating device for warming the interior of the vehicle. There are two types of heating apparatuses that use heat generated by the engine and heat sources other than the engine, and hot water using the cooling water of the engine, exhaust heat using the exhaust heat of the engine and engine heat according to the heat source. Instead, it is classified into a combustion type using an independent combustor.

A heating system having the combustion type among the three types described above will be described with reference to FIG. 1.

As shown, the coolant passing through the engine 1 flows along the pipeline to the heater 2, the combustor 3, and the thermostat 4.

Then, the coolant flowing to the thermostat (4), when the temperature is low, the valve of the thermostat (4) is closed is not drawn into the radiator (5) temperature is raised.

Here, when the temperature of the cooling water rises above a predetermined temperature (70 ° C. to 88 ° C.), the valve of the thermostat 4 is gradually closed and the engine 1 is again in a state where the temperature is lowered via the radiator 5. Flows into.

On the other hand, since the temperature of the coolant passing through the engine initial engine 1 during the winter is at a low temperature, the heater 2 alone is not able to heat the room.

Thus, when the combustor 3 is operated for a predetermined time, the temperature of the cooling water can be rapidly increased while the engine 1 is preheated to a predetermined temperature, thereby achieving rapid rapid heating of the room.

However, according to the related art, since the combustor 3 is configured to burn the fuel with electricity to the burner to rapidly raise the temperature of the cooling water, there is a problem in that the exhaust gas generated during combustion of the fuel is not environmentally friendly.

In addition, since the fuel tank for supplying fuel to the burner of the combustor 3 and the exhaust line through which the exhaust gas is exhausted must be separately installed in the vehicle, there is a problem in that the fuel tank is installed in the engine room interior space.

The present invention was devised to solve the above problems, and a vehicle heating system and a control method thereof capable of rapidly heating a vehicle interior at the beginning of a vehicle engine start using microwaves without using a separate combustor. The purpose is to provide.

The present invention for achieving the above object, the cooling water discharged from the engine is configured to enter the engine again by the pumping of the water pump via the main heater or a radiator in accordance with the temperature of the cooling water in the thermostat in a vehicle heating system An auxiliary heater installed on a cooling water flow path between the radiator and the main heater, the auxiliary heater allowing the cooling water to be heated by microwaves; A control means for controlling the auxiliary heater, wherein the auxiliary heater comprises: an auxiliary heater case made of electromagnetic shielding material having a cooling water inlet and a cooling water outlet; Microwaves are generated inside the auxiliary heater case and heat the cooling water contained therein, and are composed of a magnetron having a waveguide for transmitting the microwaves to the cooling water. The auxiliary heater case includes vibration means for vibrating the cooling water. It is characterized by.

The control method of a vehicle heating system according to the present invention for achieving the above object comprises a first step of determining whether the rapid heating mode switch is turned on after the power is turned on and the engine is turned on in the rapid heating mode; A second step of operating the magnetron in the rapid heating mode as a result of the determination of the first step; A third step of determining whether the temperature of the present cooling water sensed by the temperature sensing means is equal to or higher than a set temperature; A fourth step of operating the bypass means such that the cooling water discharged from the thermostat is bypassed to the main heater when the temperature of the cooling water is greater than or equal to the predetermined temperature as a result of the determination in the third step; And a fifth step of stopping the operation of the magnetron after the fourth step, and operating the vibration means for vibrating the coolant contained in the auxiliary heater case after the second step. Next, the third step is performed.

Hereinafter, a preferred embodiment of a vehicle heating system according to the present invention will be described with reference to the accompanying drawings.

2 is a view showing the configuration of a vehicle heating system according to the present invention, Figure 3 is a view showing the configuration of a vehicle heating system according to another embodiment of the present invention, Figure 4 is an internal configuration of the auxiliary heater of the present invention 5 is a view showing a position where the coolant inlet and the coolant outlet are formed in the auxiliary heater case of the present invention, Figure 6 is a view showing a position where the coolant inlet and the coolant outlet is formed in the auxiliary heater case of the present invention 7 is a control block diagram of the present invention, and FIG. 8 is a control flowchart of the present invention.

As shown, the coolant discharged from the engine 10 is again pumped by the water pump 40 via the main heater 20 or the radiator 30 according to the temperature of the coolant in the thermostat 11. Applied to a vehicle heating system configured to flow into the (10), it characterized in that the auxiliary heater 50 is provided on the cooling water flow passage 12 between the radiator 30 and the main heater 20.

The auxiliary heater 50 includes an auxiliary heater case 51, a magnetron 52, and a control means 60 for controlling the power supply to the magnetron 52.

The auxiliary heater case 51 is provided on the cooling water flow passage 12 between the radiator 30 and the main heater 20 and includes a cooling water inlet 51a and a cooling water outlet 51b.

In addition, the auxiliary heater case 51 is made of a shielding material so as not to emit electromagnetic waves to the outside.

The magnetron 52 is installed inside the auxiliary heater case 51 to generate microwaves for heating the cooling water accommodated therein, and has a waveguide 52a for transmitting the microwaves to the cooling water.

Here, the waveguide 52a is used as a transmission path of microwaves and is formed in a hollow metal tubular shape.

In addition, reference numeral 54 is a voltage regulator electrically connected between the power supply and the magnetron 52.

The auxiliary heater case 51 is provided with vibration means 70 for vibrating the coolant.

As described above, the vibration means 70 generates vibrations in the cooling water, so that microwaves generated from the magnetron 52 can be absorbed evenly in the cooling water, thereby improving heating efficiency.

The temperature sensing means 71 is installed on the cooling water flow path 12 between the cooling water inlet 51a of the auxiliary heater case 51 and the thermostat 11 to sense the temperature of the cooling water, and this temperature. Bypass means for allowing the cooling water discharged from the thermostat 11 to be bypassed to the main heater 20 when the temperature of the cooling water sensed by the sensing means 71 is above a predetermined value (at 75 ° C) ( 72).

The bypass means 72 may use a three-way direction switching valve that is normally opened and closed electronically.

Here, the reason for using the bypass means 72 is that when the engine cooling water is used as the heating heat source of the vehicle, the function of the auxiliary heater 50 becomes unnecessary when the temperature of the engine rises and the temperature of the cooling water rises.

Therefore, when the temperature of the cooling water sensed by the temperature sensing means 71 is 75 ° C. or more, the power supply to the magnetron 52 is cut off and the cooling water is bypassed to the main heater 20 to reduce unnecessary energy waste. I would have to.

The cooling water inlet 51a is provided at an upper side of the auxiliary heater case 51 and the cooling water outlet 51b is provided at a lower side of the auxiliary heater case 51 with a height difference therebetween.

As shown in FIG. 5, the cooling water inlet 51a and the cooling water outlet 51b are tangentially installed on the outer surface of the auxiliary heater case 51.

6, the cooling water inlet 51a and the cooling water outlet 51b may be installed in a direction in which the cooling water inlet 51a and the cooling water outlet 51b are aligned with each other on the outer surface of the auxiliary heater case 51.

On the other hand, the auxiliary heater case 51 is provided with a plurality of partition walls 51c staggered with each other such that the cooling water flow path is zigzag.

As described above, the installation of the cooling water inlet 51a and the cooling water outlet 51b in the tangential direction, the installation of them with a difference in height, and the reason for installing the partition wall 51c inside the auxiliary heater case 51. The cooling water is to increase the time that flows in the auxiliary heater case (51).

In other words, the inside of the auxiliary heater case 51 to stay for more time.

Referring to the control method of the vehicle heating system configured as described above are as follows.

In winter, the driver turns on the rapid heating mode switch 75 because the temperature of the coolant does not rise in a short time even when the engine is operated (S10).

When the rapid heating mode switch 75 is turned on by the driver's operation as described above, the control means 60 determines whether the current rapid heating mode is present (S20).

As a result of the determination in step S10, in the rapid heating mode, the magnetron 52 is operated.

After the step (S30), it is determined whether the temperature of the current coolant detected by the temperature sensing means 71 is more than the set temperature (S40).

As a result of the determination in step S40, when the current temperature of the cooling water is higher than or equal to the set temperature, the bypass means 72 is operated so that the cooling water discharged from the thermostat 11 is bypassed to the main heater 20. (S50)

When the bypass means 72 is operated as described above, the cooling water is bypassed to the cooling water inlet 51a of the auxiliary heater case 51 in the state where the cooling water is discharged to the thermostat 11, and is bypassed to the main heater 20. It will flow into.

After the operation S50 is performed, the operation of the magnetron 52 is stopped.

The description so far describes the basic control method of the present invention.

After the step S30 is performed, a step S35 of operating the vibration means 70 for vibrating the coolant contained in the auxiliary heater case 51 may be further performed.                     

Next, after the step S40, the step of determining whether the elapsed time after the temperature of the cooling water becomes higher than the set temperature is greater than or equal to the set time (S45) may be further added.

Then, after the step (S60) proceeds to stop the operation of the vibration means 70 may be further added. (S65)

As described above, according to the heating system for a vehicle and the control method thereof according to the present invention, it is possible to rapidly heat the interior of a vehicle at the initial stage of engine start-up using microwaves without using a separate combustor.

Claims (10)

The coolant discharged from the engine 10 flows back into the engine 10 by pumping the water pump 40 via the main heater 20 or the radiator 30 according to the temperature of the coolant in the thermostat 11. In a vehicle heating system configured to An auxiliary heater (50) installed on the coolant flow conduit (12) between the radiator (30) and the main heater (20) and allowing the coolant to be heated by microwaves; It includes a control means 60 for controlling the auxiliary heater 50, The auxiliary heater 50 includes an auxiliary heater case 51 made of electromagnetic shielding material having a cooling water inlet 51a and a cooling water outlet 51b; Microwave is generated inside the auxiliary heater case 51 to heat the cooling water accommodated therein and is composed of a magnetron 52 having a waveguide 52a for transmitting the microwave to the cooling water. The auxiliary heater case (51) is a heating system for a vehicle, characterized in that the vibrating means (70) for vibrating the coolant. delete delete The method of claim 1, A temperature sensing unit (71) installed on the cooling water flow path (12) between the cooling water inlet port (51a) of the auxiliary heater case (51) and the thermostat (11); Bypass means 72 for bypassing the cooling water discharged from the thermostat 11 to the main heater 20 when the temperature of the cooling water sensed by the temperature sensing means 71 is a predetermined value or more. Vehicle heating system characterized in that. The method of claim 4, wherein The cooling water inlet 51a is provided at an upper side of the auxiliary heater case 51, and the cooling water outlet 51b is installed at a lower side of the auxiliary heater case 51 with a height difference therebetween. system. The method of claim 5, wherein The interior of the auxiliary heater case 51 is a vehicle heating system, characterized in that a plurality of partition walls (51c) are provided to be staggered so that the cooling water flow path is zigzag. A first step of determining whether the rapid heating mode switch 75 is turned on and the rapid heating mode after the power is turned on and the engine is operated; A second step of operating the magnetron 52 in the rapid heating mode as a result of the determination of the first step; A third step of determining whether the temperature of the present cooling water sensed by the temperature sensing means 71 is equal to or higher than the set temperature; A fourth step of operating the bypass means such that the cooling water discharged from the thermostat 11 is bypassed to the main heater 20 when the temperature of the cooling water is equal to or higher than the set temperature as the determination result of the third step; A fifth step of stopping the operation of the magnetron 52 after the fourth step; After the second step of performing the step of operating the vibration means 70 for vibrating the coolant contained in the auxiliary heater case 51, the vehicle heating, characterized in that to perform the third step Control method of the system. delete The method of claim 7, wherein And determining whether the elapsed time after the temperature of the coolant is higher than the set temperature after the third step is greater than or equal to the set time. The method of claim 7, wherein And stopping the operation of the vibration means (70) after the fifth step.

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