KR19980062786U - In-vehicle air circulation - Google Patents

Abstract

The present invention relates to an in-vehicle automatic circulation device, in particular, the driver detection unit for generating a first detection signal according to the absence of the driver; A temperature sensing unit configured to sense a temperature in the vehicle interior and generate a second sensing signal at a predetermined temperature; A battery for supplying power; A battery monitoring unit for monitoring a voltage level of the battery; An air circulation unit for introducing outside air into the cabin or discharging the outside of the cabin; A switching unit coupled between the battery and the air circulation unit and switched to supply power to the air circulation unit; A battery charger for generating a charging current for charging the battery; A starting switching unit coupled between the battery and the battery charger and switched to supply a battery voltage to the battery charger; And operating the air circulation unit to circulate air in the vehicle interior by controlling the switching unit in response to the first and second sensing signals, and responding to the monitoring signal generated from the battery voltage monitoring unit at a predetermined voltage level according to the battery discharge. And controlling the starting switching unit to start the battery charging unit.

Description

In-vehicle air circulation

The present invention relates to an in-vehicle air circulation system, and more particularly, to an in-vehicle air circulation system capable of automatically circulating the air in the car according to the presence of the driver and the temperature level in the car.

In general, a vehicle is provided with an air circulation device for circulating the air in the room, this air circulation device is typically a ventilation device for ventilating the inside of the vehicle with the air flowing from the outside, and the incoming air is heated by a heat exchanger Thereby, there is a heating device that provides warm air. These two devices operate a blower as needed to force the inflow of air, and depending on the season, the air control valve is switched to a specific position to enable the use of an optional air circulation system. In addition, a cooling device is also included in the air circulation device.

The conventional air circulation system can perform the above-described functions automatically or in response to the driver's operation at the time of driving, but when the driver parks the vehicle, the air circulation system does not perform its function. In particular, when parked in the summer for a long time, the vehicle is in a sealed state, the air and interior of the interior is heated by the heat applied from the outside. Therefore, such a change in indoor condition causes damage to the heat sensitive article stored therein, and also causes the driver to be uncomfortable.

An object of the present invention is to provide an in-vehicle air circulation system that can automatically circulate the air in the vehicle in accordance with the presence or absence of the driver and the temperature level in the vehicle to solve the above problems.

In order to achieve the above object, the device of the present invention comprises a driver detecting unit for generating a first detection signal according to the absence of the driver; A temperature sensing unit configured to sense a temperature in the vehicle interior and generate a second sensing signal at a predetermined temperature; A battery for supplying power; A battery monitoring unit for monitoring a voltage level of the battery; An air circulation unit for introducing outside air into the cabin or discharging the outside of the cabin; A switching unit coupled between the battery and the air circulation unit and switched to supply power to the air circulation unit; A battery charger for generating a charging current for charging the battery; A starting switching unit coupled between the battery and the battery charger and switched to supply a battery voltage to the battery charger; And operating the air circulation unit to circulate air in the vehicle interior by controlling the switching unit in response to the first and second sensing signals, and responding to the monitoring signal generated from the battery voltage monitoring unit at a predetermined voltage level according to the battery discharge. And controlling the starting switching unit to start the battery charging unit.

1 is a block diagram illustrating an in-vehicle air circulation system according to the present invention.

Figure 2 is a flow chart for explaining the in-vehicle air circulation system according to the present invention.

* Explanation of symbols for the main parts of the drawings.

10; A driver detecting unit 20; A temperature sensing unit 40; battery

60; A battery monitoring unit 80; Air circulation unit 100; Switching unit

120; A battery charger 140; Starting switching unit 160; Control

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a block diagram illustrating a differential indoor air circulation system according to the present invention, as shown, the driver detection unit 10 for generating a first detection signal according to the absence of the driver, and the temperature in the vehicle interior And a temperature monitoring unit 20 for generating a second detection signal at a predetermined level of temperature, a battery 40 for supplying power, and a battery monitoring for monitoring a voltage level of the battery 40. The unit 60 and the air circulation unit 80 for introducing the outside air into the cabin or discharge the bet to the outside of the vehicle, and is coupled between the battery 40 and the air circulation unit 80 air circulation unit 80 A switching unit 100 switched to supply power to the battery unit, a battery charger 120 generating a charging current to charge the battery 40, and coupled between the battery 40 and the battery charger 120, Switching start switching to power the battery charger 140 and the air circulation unit 80 to circulate air in the vehicle interior by controlling the switching unit 100 in response to the first and second detection signals, and according to the discharge of the battery 40. The control unit is configured to start the battery charging unit 140 by controlling the start switching unit 140 in response to the monitoring signal generated from the battery voltage monitoring unit 60 at the voltage level.

The battery charging unit 120 is coupled to the starting switching unit 140, the on-start of the start switch: the starting motor 121 to operate by the battery voltage, and the engine operating in conjunction with the automatic operation of the starting motor 121 ( 122 and a generator 124 coupled to the engine 122 and generating a charging current according to the operation of the engine 122.

Referring to Figure 2 with reference to the overall operation of the present invention having an embodiment as described above are as follows.

2, a first reference room temperature Tic1 of a higher level, a second reference room temperature Tic2 of a lower level, a first reference battery voltage VBR1 of a lower level, and a second reference battery voltage of a higher level with reference to FIG. 2. The VBR2 is set in advance in the control unit 160, that is, the ECU.

Referring to FIG. 1, the driver detecting unit 10 is for monitoring a member's absence and generates a first detection signal when the driver is parked and is away. The driver detecting unit 10 may use a weight sensor using, for example, a pressure sensor or a piezoelectric sensor.

The temperature detector 20 generates a second detection signal when the temperature in the vehicle rises above the first reference room temperature Tic1 which is a predetermined level.

When the vehicle is parked for a long time, air inside the vehicle is heated by external heat, that is, solar heat, or decorations such as a seat are heated. This naturally increases the temperature inside the closed vehicle.

In this state, if the above-described conditions of the driver and the indoor temperature are satisfied, the driver detecting unit 10 and the temperature detecting unit 20 operate to generate first and second detection signals, and to generate the first and second detection signals. In response, the controller 160 controls the switching unit 80.

Then, the switching unit 80 is switched to form an electric passage between the battery 40 and the air circulation unit 80, so that the power of the battery 40 is supplied to the air circulation unit 80. The air circulation unit 80, which is supplied with power, operates its own blower to introduce outside air into the vehicle interior, and discharges hot air from the outside to the outside, thereby exchanging indoor air.

In the above air circulation operation process, if the indoor temperature drops below the second reference indoor temperature Tic2, which is a predetermined level, the control unit 100 turns off the switch of the switching unit 100 to operate the air circulation unit 80. Stop.

However, frequent operation of the air circulation unit 80 may result in full discharge of the battery 40. Therefore, the present invention provides a battery monitoring unit 40 to monitor the voltage level of the battery 40 to secure this, the battery monitoring unit 40 is the first battery 40 is a predetermined level due to the discharge When the voltage falls below the reference battery voltage VBR1, a monitoring signal is generated and provided to the controller 120.

Here, assuming that the voltage level of the battery falls below the first reference battery voltage VBR1, in response to a monitoring signal by the battery monitoring unit 40, the controller 160 controls the start switch of the start switching unit 140. By turning on, an electric passage is formed between the battery 100 and the starting motor 121 of the battery charger 120. As a result, the starter motor 121 supplied with power from the battery 100 operates to drive the engine 122, and then the generator 122 connected to the engine 122 and the fan belt operates to charge the battery 40. To generate a charging current.

In this charging process, the voltage level of the battery is maintained at the second reference battery voltage VBR2 level, and the battery voltage monitoring unit 60 monitoring the battery voltage level is higher than the second reference battery voltage VBR2 level. Will occur. Then, the control unit 160 turns off the start switch of the start switching unit 140 in response to the monitoring signal, thereby terminating the charging operation of the battery.

Therefore, as described above, the present invention has an effect of preventing the damage of temperature-sensitive articles stored in the cabin by increasing the room temperature of the sealed vehicle in the absence of the driver, in particular, the vehicle after a long parking Opening the door has another effect that eliminates the discomfort caused by the warm air and internal organs.

Claims (2)

A driver detection unit generating a first detection signal according to the absence of the driver; A temperature sensing unit configured to sense a temperature in the vehicle interior and generate a second sensing signal at a predetermined temperature; A battery for supplying power; A battery monitoring unit for monitoring a voltage level of the battery; An air circulation unit for introducing outside air into the cabin or discharging the outside of the cabin; A switching unit coupled between the battery and the air circulation unit and switched to supply power to the air circulation unit; A battery charger for generating a charging current for charging the battery; A starting switching unit coupled between the battery and the battery charger and switched to supply a battery voltage to the battery charger; And operating the air circulation unit to circulate air in the vehicle interior by controlling the switching unit in response to the first and second sensing signals, and responding to the monitoring signal generated from the battery voltage monitoring unit at a predetermined voltage level according to the battery discharge. And a control unit for starting the battery charging unit by controlling the starting switching unit. The engine of claim 1, wherein the battery charging unit is coupled to the starting switching unit and is activated by the battery voltage when the starting switch is turned on, the engine operates in conjunction with the operation of the airway motor, and the engine. And an alternator coupled to the generator to generate a charging current according to the operation of the engine.