KR100339913B1 - Aparatus for controlling temperature in passenger compartment of vehicle and method therefor - Google Patents

Abstract

The present invention relates to a vehicle interior temperature control apparatus and a method thereof, and more particularly, to a thermostat device and a method for preventing the indoor temperature of a vehicle from rising above a predetermined temperature. To this end, the present invention detects the starting key state detection unit for detecting the state that the ignition key is locked to the vehicle start lock, the temperature detection unit for detecting the vehicle interior temperature, and the opening and closing state of the ventilation openings communicating with the inside and outside of the vehicle. A ventilation opening state detection unit, a power supply unit supplying power to an electronic device installed in a vehicle, a power supply state detection unit detecting a power level of the power supply unit, the starting key state detection unit, a temperature detection unit, the ventilation hole state detection unit, and the power supply state detection unit It is composed of a microcomputer receiving the signals output from the output of a predetermined control signal, a driving unit for receiving the control signal and outputting a predetermined drive signal, and a heat dissipation unit for receiving the driving signal to operate, the indoor temperature of the vehicle Can keep going up and down when the driver enters the car interior I can not feel a sense.

Description

Indoor temperature control device and its method {APARATUS FOR CONTROLLING TEMPERATURE IN PASSENGER COMPARTMENT OF VEHICLE AND METHOD THEREFOR}

The present invention relates to an apparatus and a method for controlling an indoor temperature of an automobile, and more particularly, to an apparatus and an apparatus for controlling an indoor temperature of a vehicle for preventing an indoor temperature of a vehicle parked outdoors from rising to high temperature due to solar heat.

In general, if a car is parked outdoors for a long time with the sun's windows and doors closed, the sun's heat will cause the car's interior temperature to be much higher than the outside temperature, for example about 60 degrees Celsius or more. Keep going up. If the car's room temperature continues to rise, the decorations in the room may deform, explosive substances stored in the car, such as gas lighters or other chemicals, may explode and cause vehicle fire, and also pets such as dogs. If trapped inside a car, it can choke the animal and threaten life.

Conventionally, in order to lower the vehicle interior temperature, a mode is provided in which a ignition key is inserted into a vehicle to supply power to an electronic device from a power supply unit, or the vehicle is started. Then, the air conditioner is operated to supply cool air to the vehicle interior.

Therefore, the vehicle interior temperature control apparatus according to the prior art requires the driver to operate the air conditioner for a predetermined time in order to lower the room temperature after the driver inserts the ignition key into the lock of the vehicle, so that the driver has to lower the room temperature. Not only does it feel unpleasant until then, it wastes wasted time. In addition, there is a problem of consuming fuel because the car must be started, and thus exhaust gas of the car is discharged to cause air pollution.

In order to solve the above problems, the present invention has devised a device that can automatically adjust the indoor temperature so that the room temperature of the car parked in the open air exposed to the sunlight does not continue to rise to a high temperature.

The main purpose of the present invention is to open the air vents, and when the power supply of the power supply unit is at a predetermined level or more, when the indoor temperature of the car becomes a predetermined temperature or more, by operating the heat radiating unit installed in the vents to lower the indoor temperature by discharging the indoor air of the car In addition, the present invention provides a vehicle interior temperature control device and a method for maintaining a room temperature of a vehicle at a predetermined temperature or less and preventing a start using battery power.

To this end, the thermostat according to the present invention, the temperature detection unit for detecting the vehicle interior temperature, the determination unit for determining whether the indoor temperature of the vehicle rises above a predetermined temperature, and controlled by the determination unit, the It can be achieved by including a heat radiation to lower the temperature.

The automatic temperature control method according to the present invention includes a first step of detecting a state in which a car key is in an OFF state or removed from a car lock, a second step of detecting whether an indoor temperature of a car is above a predetermined temperature, and an opening of a ventilation opening Repeating the third step of detecting the state, the fourth step of detecting whether the power supply of the power supply unit is higher than or equal to a predetermined level, and operating the heat radiating member for a predetermined time when all of the conditions of the first to fourth steps are satisfied. Can be accomplished by performing.

1 is a block diagram of a thermostat according to the present invention.

2 is a waveform diagram showing a discharge state of a storage battery over time.

3 is a waveform diagram showing charging and discharging of a power supply unit.

Figure 4 is a flow chart illustrating a thermostatic control method according to the invention.

*** Explanation of symbols for the main parts of the drawing ***

1: Starting key state detection unit 16: Temperature setting unit

5: Temperature detection part 7: Ventilation state detection part

9: power supply unit 11: solar energy storage battery

13: power setting unit 15: power state detection unit

17: microcomputer 19: drive unit

21: heat dissipation unit

Referring to the configuration and operation of the vehicle interior thermostat according to the present invention in detail with the drawings as follows.

1 is a configuration diagram of a thermostat according to the present invention, a start key state detection unit 1 for detecting a state in which a car start key is inserted into a car start lock, and a temperature detection unit 5 for detecting a vehicle interior temperature. A ventilation opening state detection section 7 for detecting an opening and closing state of the ventilation openings communicating with the vehicle interior and exterior, a power supply section 9 for supplying electric power to an electronic device installed in the automobile, and a power supply of the power supply section 9 A power supply state detection unit 15 for detecting a level of the power supply, a temperature setting unit 16 for setting an operating temperature of the apparatus, the start key state detection unit 1, the temperature detection unit 5, and the ventilation opening state detection unit 7 ), A microcomputer 17 that receives signals output from the power state detector 15 and the temperature setting unit 16 and outputs a control signal, and a driver 19 that receives the control signal and outputs a predetermined drive signal. ) And the drive unit 19 It consists of a standing heat output section 21 that operates receiving the drive signal.

Here, the power state detection unit 15 may be connected to a solar energy storage battery 11 that accumulates solar energy in addition to the power supply unit 9, and a power setting unit 13 to which a driver may set a power level to be detected. Can be.

On the other hand, the heat radiating portion 21 may be a fan for forcibly performing the suction and discharge of air.

Referring to the operation of the thermostat according to the present invention configured as described above are as follows.

When the driver parks the car in the open-air parking lot where the sun is shining down, the start key state detection unit 1 of the thermostat according to the present invention is positioned in the OFF mode in the car key lock portion (not shown). Detect if is in or removed from the lock. In other words, if the start key state detection unit 1 sends a predetermined current to the circuit connected to the lock unit and no current flows, the microcomputer 17 determines that the car key is in the OFF mode or removed from the lock.

On the other hand, when the temperature detector 5 detects the vehicle interior temperature and outputs it to the microcomputer 17, the microcomputer 17 determines whether the automatic temperature control device according to the present invention is operated.

In addition, in order to detect whether the ventilation opening state detection unit 7 is open or closed in the vehicle interior and outdoors, a predetermined current flows to the electronic switch section for switching the opening and closing of the ventilation opening. At this time, when a current flows in a circuit of one of the electronic switches, for example, a mode indicating a state in which the vent is opened, it is detected that the vent is opened. Therefore, when the ventilation opening state detection unit 7 detects that the ventilation opening is open, a predetermined signal is output to the microcomputer 17, and the microcomputer 17 determines that the ventilation opening is open.

On the other hand, as shown in Figure 2, the power supply state detection unit 15, the power supply level of the power supply unit 9 is less than the maximum current (Imax) of the power supply unit, the minimum current (Imax) and the minimum for starting the car When it detects that the current is greater than the proper current Ix between the currents Imin and outputs a predetermined signal to the microcomputer 17, the microcomputer 17 is suitable for operating the thermostat from the signal. Determine the power supply.

Thus, the microcomputer 17 is located in the OFF mode or removed from the lock, the vehicle interior temperature is above a predetermined temperature (for example, 60 degrees Celsius or more), the ventilation opening is open, the power supply unit When the power supply satisfies all of the conditions above the operating limit current Ix, a predetermined control signal is output to the drive unit 19. Then, the driving unit 19 receiving the control signal outputs a driving signal for operating the heat dissipating unit 21 for a predetermined time, and rotates the fan to discharge hot air in the vehicle interior to the outside. . In other words, when the microcomputer 17 outputs the control signal to the driving unit 19, the direction of the supply power supplied from the power supply unit 9 to the heat dissipation unit 21 is reversed, whereby the heat dissipation unit 21 is provided. When in normal mode, the motor rotates in the opposite direction to the turning direction. When the heat radiating portion 21 rotates in the opposite direction to discharge hot air from the inside of the room, the inside of the car has a lower air pressure than the outside, and in order to compensate for the difference in air pressure, the outside of the inside of the car has a small gap between the inside of the car and the outside. Air enters the room.

Therefore, the temperature inside the vehicle interior does not continuously rise to a high temperature, and is kept constant below a predetermined temperature.

In the thermostat according to the present invention, as shown in FIG. Repeated ON / OFF operation during t). Since the thermostat according to the present invention does not operate after the power supply level of the power supply unit 9 reaches the appropriate current Ix, a solar energy storage battery using solar energy or another method, that is, For example, when the remote vehicle starting device is operated to charge power to the power supply unit 9, the thermostat may be operated again. This will be described in more detail as follows.

3 is a waveform diagram showing charging and discharging of the power supply unit of the present invention, wherein the thermostat is operated for a predetermined time t1 at which the power supply level of the power supply unit 9 becomes a proper current Ix at the maximum current Imax. do. After that, the circuit device is set in a state for charging the power supply unit 9 for a predetermined time t2-t1, and the predetermined time t3-t2 until the maximum current Imax is reached in the power supply unit 9. While charging. After that, the thermostat of the present invention again stops charging, and as described above, the operation of lowering the temperature of the vehicle interior is performed.

In the above description, the charging operation and the discharge are divided into the power supply unit 9, but the charging operation may be performed even during the operation of the thermostat according to the present invention.

4 is a flowchart illustrating a method for adjusting the temperature according to the present invention. The microcomputer 17 determines whether the car key is in the OFF mode state or is removed from the vehicle lock through the start key state detection unit 1 (ST 1). If the key is in the OFF mode or removed, it is determined via the temperature detector 5 whether the vehicle interior temperature is higher than a predetermined temperature (for example, 50 degrees Celsius) (ST 2), and the vehicle interior temperature is the predetermined temperature. If it is higher, it is determined through the vent state detection unit 7 whether the vent is open (ST 3). The microcomputer 17 determines that the ventilation opening is open to allow air to flow between the inside and the outside of the vehicle, and determines whether the power level of the power supply unit 9 is higher than the preset power level through the power state detection unit 15 ( ST 4), if the power level of the power supply unit 9 is higher than the preset power level, the control unit 19 outputs a control signal to operate the fan for a predetermined time (ST 5).

After a predetermined time has elapsed after the fan is operated (ST 6), the temperature detecting unit 5 again determines whether the vehicle interior temperature is greater than the preset temperature (ST 2). After that, by repeating the step 6 (ST 6) from the step 3 (ST 3), the vehicle room temperature is kept constant.

In the embodiment according to the present invention, the driver operates only when the ventilator is manually opened, and is described as operating while the ventilator is open. However, even when the ventilator is closed, a person skilled in the art can easily operate the ventilator. You will be able to.

The vehicle indoor temperature control apparatus and the method according to the present invention described so far can maintain the indoor temperature of a parked vehicle at least as close as the ambient temperature, regardless of the ambient temperature, and also have no influence on the parts of the vehicle in the past. Easy to install without giving In addition, it is possible to prevent the driver from entering the interior of the parked car, feeling uncomfortable, and to reduce the time required to lower the indoor temperature. It also reduces fuel consumption and prevents air pollution from automobile exhaust.

Claims (5)

A start key state detection unit for detecting a state in which the car start key is not inserted into the car start lock, A ventilation opening state detection unit detecting an opening state of a ventilation opening leading to the inside and outside of the vehicle; A power supply state detection section for detecting whether a level of the power supply is higher than or equal to a predetermined level; A temperature detector for detecting a vehicle interior temperature; A determination unit which determines whether the detected indoor temperature of the vehicle rises above a predetermined temperature and receives detection signals of the starting key state detection unit, the ventilation opening state detection unit, and the power state detection unit, and outputs a heat radiation control signal; And a fan driven by the heat dissipation control signal of the determination unit to lower the temperature of the indoor air of the vehicle. delete delete delete A first step of detecting that the car key is in the OFF state or removed from the car start lock, A second step of detecting whether the indoor temperature of the vehicle is equal to or higher than a predetermined temperature when detecting the condition of the first step; A third step of detecting an open state of the vent when the condition of the second step is detected; A fourth step of detecting whether the power supply of the power supply unit is higher than or equal to a predetermined level when detecting the condition of the third step; And a fifth step of operating the heat dissipation part when detecting the condition of the fourth step.