JPH0538932A - Ventilating device for vehicle - Google Patents

Abstract

PURPOSE:To quickly discharge cigarette smoke in a cabin to outside a vehicle by operating a discharger when smoking is detected, and also making an inside- outside air switching damper an outside air introduction mode until a fixed time elapses after the smoking is detected. CONSTITUTION:An outside air introduction mode and an inside air circulation mode are switched with an inside-outside air switching damper 9 in an air conditioning unit 1. Here, when smoking is detected with a smoking detection sensor detecting the use of a cigarette lighter and an ash tray, a discharger 10 is operated. The inside-outside air switching damper 9 is set into the outside air introduction mode until a fixed time set with a timer elapses after smoking is detected. This can quickly discharge cigarette smoke in the cabin 27 to outside a vehicle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a vehicle ventilation system.

[0002]

2. Description of the Related Art An example of a conventional vehicle ventilation device is shown in FIG. Reference numeral 1 is an air conditioning unit installed at the front of the vehicle, which is a blower 2, an evaporator 3, a heater 4, an air mix damper 5, a rear seat air distribution damper 6, and an inside / outside air switching mode for switching between an outside air introduction mode and an inside air circulation mode. The damper 9 etc. are provided.

When the air conditioning unit 1 is in operation, the blower 2 is driven and the outside air or the passenger compartment air selected by switching the inside / outside air switching damper 9 is urged by the blower 2 and then flows through the evaporator 3. Is cooled by passing. The air cooled by the evaporator 3 is diverted by the air mix damper 5, one of which is heated by exchanging heat with the engine cooling water circulating through the heater 4 in the process of passing through the heater 4 and then the heater. 4 is mixed with the other flow that bypassed 4 to become conditioned air having a predetermined temperature.
When the rear seat air distribution damper 6 is closed, this conditioned air is blown out from the front seat outlet 7 to the front part inside the passenger compartment 27 to mainly air-condition the front seat 30 side. When the rear seat air distribution damper 6 is opened, a part of the conditioned air is blown out to the rear part in the passenger compartment 27 through the duct 8.

An exhaust device 10 also functions as an air cleaning device installed at the rear part of the automobile, and is provided with a blower 12, an exhaust damper 13, an air filter 14 such as a deodorizing filter, an electrostatic filter and the like. When purifying the air, the exhaust damper 13 occupies the solid line position,
The air in the passenger compartment taken in by the blower 12 is an air filter.
The air is blown out from the rear air outlet 15 that is purified by flowing through the air to the rear of the vehicle interior 27. At the time of exhaust, the exhaust damper 13 is switched to the position shown by the broken line, and the air inside the vehicle is blower 12
Is sucked in and discharged from the exhaust port 16 to the outside of the vehicle through the trunk room.

The detection values of the outside air temperature sensor 32, the room temperature sensor 33, the solar radiation sensor 34, the humidity sensor 35, etc. are multiplexers and A / Ds.
Central processing unit CPU, read-only memory RO via converter etc.
It is input to a control device (not shown) including a microcomputer having M, random access memory RAM and the like. The control panel installed in front of the driver's seat has an operation switch for the air conditioning unit 1, an operation switch for the exhaust device 10, an inside / outside air switching damper 9, a rear seat air distribution damper 6, and an exhaust damper 13.
Open / close switch, cooling operation switch for setting cooling operation, air volume changeover switch for changing the number of revolutions of blowers 2 and 12, AUTO switch for automatic control of air conditioning control, room temperature setting device for arbitrarily setting the temperature inside the passenger compartment 27 Etc. are provided, and these outputs are also input to the control device. Then, the output of this control device is sent to the dampers 5, 6, 9, 13 and the blowers 2, 12 etc. via a driver (not shown) to control the operations thereof.

[0006]

In the above-mentioned conventional apparatus, when smoked in the passenger compartment 27, even if the exhaust device 10 is operated, the dirt in the passenger compartment air cannot be promptly purified. there were.

[0007]

The present invention has been invented to solve the above-mentioned problems, and its gist is to have an inside / outside air switching damper for switching between an outside air introduction mode and an inside air circulation mode. In a vehicle ventilation system including an air conditioning unit and an exhaust device for exhausting air inside a vehicle, smoking detection means for detecting the use of a cigarette lighter and / or an ash tray, and the exhaust gas when the smoking detection means detects smoking A means for operating the device and a switching means for setting the inside / outside air switching damper to the outside air introduction mode until a certain time set by a timer after the smoking detection means detects smoking are provided. Located in a vehicle ventilation system. It is also possible to attach an outside air dirt sensor for detecting dirt in the outside air and a means for outputting a command for prohibiting switching to the outside air introduction mode to the switching means when the detection value of the sensor is a set value or more.

[0008]

In the present invention, because of the above-described structure, the exhaust device is operated when smoking in the vehicle is detected, and the inside / outside air switching is performed until a certain time set by the timer has elapsed after detection of smoking. The damper is switched to the outside air introduction mode. If the outside air pollution sensor that detects the dirt in the outside air and the detection value of this sensor is more than the set value and the means for outputting a command to prohibit switching to the outside air introduction mode is attached to the switching means, the outside air pollution When is greater than or equal to a predetermined value, the inside / outside air switching damper is not switched to the outside air introduction mode.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT One embodiment of the present invention is shown in FIGS.
FIG. 1 is a control block diagram and FIG. 2 is a flowchart.
The configuration of the ventilation device is the same as the conventional one shown in FIG. As shown in FIG. 1, a smoking detection sensor 50 for detecting the use of a cigarette lighter and / or an ash tray.
Is output to the operation / stop means 36 of the exhaust device, and when the smoking detection sensor 50 detects smoking, the operation of the exhaust device 10 is determined. The result of this determination is output to the exhaust device 10, and the exhaust device 10 starts operation. At the same time, this determination result is transferred via the timer 37 to the switching means of the inside / outside air switching damper.
It is output to 38, and the inside / outside air switching damper 9 is switched to the outside air introduction mode based on the command from now on, and is kept in this state until the fixed time set in the timer 37 elapses. When the timer 37 times out, the switching means 38 of the inside / outside air switching damper determines to switch to the inside air circulation mode, and this determination is output to the inside / outside air switching damper 9.

As shown in FIG. 2, when the control starts in step 100, it is confirmed in step 101 whether the inside / outside air switching damper 9 is in the inside air circulation mode. If so, it is confirmed in step 102 whether smoking is detected,
In that case, in step 103, the exhaust device 10 starts operation. Next, at step 104, the inside / outside air switching damper 9 is switched to the outside air introduction mode. In step 105, it is confirmed whether or not a certain time has elapsed, and if so, the inside / outside air switching damper 9 is switched to the inside air circulation mode in step 106. If it is determined to be no in steps 101 and 102, the exhaust device 10 is stopped in step 107. Step 10
After 6 and 107, the routine proceeds from step 108 to the next control routine.

In the first embodiment, when the inside / outside air switching damper 9 is set to the inside air circulation mode, the exhaust device 10 is operated and the timer 37 sets when smoking is detected in the passenger compartment 27. Since the inside / outside air switching damper 9 is switched to the outside air introduction mode until the predetermined time elapses, the inside of the passenger compartment 27 can be quickly ventilated. Note that the timer
Desirably, 37 is set to a time sufficient to ventilate the interior of the passenger compartment 27, for example, 10 minutes or more.

A second embodiment of the present invention is shown in FIGS. 3 and 4, FIG. 3 is a control block diagram, and FIG. 4 is a flow chart. As shown in FIG. 3, the detection value of the dirt sensor 51 for detecting dirt in the outside air is input to the comparison means 39, and is compared with the set value input from the setting means 40 here. When the detected value is larger than the set value, the comparison means 39 commands the switching means 38 of the inside / outside air switching damper to prohibit switching to the outside air introduction mode.

As shown in FIG. 4, after the exhaust device 10 is operated in step 103, it is judged in step 110 whether the dirt in the outside air is equal to or more than a set value, and if not, the process proceeds to step 104. If yes, return to step 110. In the second embodiment, since the inside / outside air switching damper 9 is prohibited from being switched to the outside air introduction mode when the outside air is dirty, it is possible to prevent the dirty outside air from being introduced into the passenger compartment 27. .

[0014]

According to the present invention, the exhaust device is operated when smoking is detected in the passenger compartment, and the inside / outside air switching damper is set to the outside air introduction mode until a certain time set by the timer elapses after the smoking is detected. Since it is switched, it is possible to quickly discharge the smoke of the cigarette in the vehicle compartment to the outside of the vehicle. When the outside air pollution sensor for detecting dirt in the outside air and the detection value of this sensor is more than the set value and the switching means is provided with a means for outputting a command to prohibit switching to the outside air introduction mode, Can be prevented from being introduced into the passenger compartment.

[Brief description of drawings]

FIG. 1 is a control block diagram showing an embodiment of the present invention.

FIG. 2 is a flow chart of the first embodiment.

FIG. 3 is a control block diagram showing a second embodiment of the present invention.

FIG. 4 is a flowchart of a second embodiment.

FIG. 5 is a schematic configuration diagram of a conventional vehicle ventilation device.

[Explanation of symbols]

 9 Inside / outside air switching damper 10 Exhaust device 50 Smoking detection sensor 36 Exhaust device running / stopping means 37 Timer 38 Inside / outside air switching damper switching means 51 Contamination sensor 39 Switching means to outside air introduction mode 40 Setting means

Claims (2)

[Claims] 1. A vehicle ventilation system comprising an air conditioning unit having an inside / outside air switching damper for switching between an outside air introduction mode and an inside air circulation mode, and an exhaust system for discharging air in a vehicle compartment, comprising a cigarette lighter and / or an ash tray. Smoking detection means for detecting use, means for operating the exhaust device when the smoking detection means detects smoking,
A ventilation device for a vehicle, comprising: switching means for setting the inside / outside air switching damper to an outside air introduction mode until a predetermined time set by a timer elapses after the smoking detection means detects smoking. 2. An outside air dirt sensor for detecting dirt in the outside air, and means for outputting a command for prohibiting switching to the outside air introduction mode to the switching means when the detection value of the sensor is a set value or more. The vehicle ventilation device according to claim 1.