JP2008081072A - Vehicular air conditioning system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular air conditioning system having high cost performance on the whole by effectively functioning in normal use as a vehicular air conditioning system and exhibiting usefulness even in emergency. <P>SOLUTION: This vehicular air conditioning system comprises a first oxygen sensor 10 and a second oxygen sensor 11 as an oxygen concentration detecting means for detecting oxygen concentration inside a vehicle, a control section 20 as a control means for determining in response to the oxygen concentration based on information from the first oxygen sensor 10 and the second oxygen sensor 11, and an alarm means 30 and an air conditioning means 40 to be operated based on the control section 20. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle air conditioning system, and more particularly, to a vehicle air conditioning system that controls the air conditioning system according to the oxygen concentration and conveys the state of the passenger compartment to the passenger.

  As a system for detecting an abnormality of a vehicle and performing a danger notification treatment, a system for determining a danger by using various abnormal state detection means and performing a notification and a treatment is considered.

For example, a temperature sensor or smoke sensor is used as an anomaly detection means, and the control unit determines danger from these information, and controls occupant notification means, notification means, notification means to surroundings, treatment means, A device that controls the same means as described above using a sensor, or a device that controls the same means as described above using a biological detection means or a life crisis state detection means is considered.
JP 2006-23862

  However, the above-mentioned system is used to judge and control the crisis situation of the occupant, and is not used in normal use. For general users, it is expensive but not a useful system. .

  The present invention has been made to solve the conventional problems as described above, and an object of the present invention is to provide a vehicle air-conditioning system that functions effectively even during normal vehicle use, and even in a critical state. The object is to provide a vehicle air conditioning system with high cost performance as a whole by being able to demonstrate its usefulness.

  In order to achieve the above object, an invention according to claim 1 of the present invention includes an oxygen concentration detection means for detecting an oxygen concentration inside a vehicle, and a control means for making a determination based on oxygen concentration information from the oxygen concentration detection means. And a warning means that operates based on the control means and an air conditioning means.

  According to a second aspect of the present invention, in the vehicle air conditioning system according to the first aspect, the warning means is a warning buzzer or a warning message for an occupant.

  A third aspect of the present invention is the vehicle air conditioning system according to the first or second aspect, wherein the air conditioning means is a blower motor and an inside / outside air switching damper.

  A fourth aspect of the present invention is the vehicle air conditioning system according to any one of the first to third aspects, further comprising reporting means for reporting the state of the vehicle to the outside.

  According to a fifth aspect of the present invention, in the vehicle air conditioning system according to the fourth aspect, the reporting means is an in-vehicle telephone device or a communication device.

  A sixth aspect of the present invention is the air conditioning system for a vehicle according to the fourth aspect, wherein the reporting means flashes the hazard lamp to notify the surroundings of the vehicle.

  According to the present invention, the oxygen concentration detection means for detecting the oxygen concentration inside the vehicle, the control means for making a determination based on the oxygen concentration information from the oxygen concentration detection means, the warning means that operates based on the control means, The vehicle air-conditioning system that functions effectively even during normal vehicle use by providing air-conditioning means, and can also demonstrate its usefulness even in critical situations, so that it has a high cost performance as a whole. You can get a system.

  Hereinafter, the best mode for carrying out the present invention will be described.

  As a warning means of the present invention, only a warning buzzer may be used as a warning sound for an occupant, and a warning message such as “Oxygen concentration is low” or “please ventilate” may be used. Further, by performing both warnings at the same time, it is possible to reliably convey the content of the warning to the occupant.

  The air-conditioning means to be operated based on the judgment of the control means is to at least turn on the blower motor and open the outside air side of the inside / outside air switching damper to guide outside air into the vehicle interior, and the oxygen concentration in the vehicle interior decreases In addition, the oxygen concentration can be reliably increased. At this time, in order to increase the oxygen concentration of the outside air, a configuration in which oxygen concentration is increased by an oxygen-enriched film may be introduced.

  Further, depending on the state of oxygen concentration, a reporting means for reporting the state of the vehicle to the outside may be provided. As this reporting means, an in-vehicle telephone device or other external devices such as wireless, infrared, visible light, etc. It is good also as a structure which transmits the state of a vehicle with the communication apparatus which can transmit information. Further, the reporting means may be configured to blink a hazard lamp simply as a means for indicating a vehicle abnormality around the vehicle, and the headlamp and the brake lamp are turned on or blinked alone or in conjunction with each other. It is good also as a structure.

  Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the vehicle air conditioning system of the present embodiment, and FIG. 2 is a flowchart showing the operation of the vehicle air conditioning system of the present embodiment.

  The vehicle air conditioning system of the present embodiment in FIG. 1 includes a first oxygen sensor 10 as an oxygen concentration detection means provided in an air conditioning duct, and a first air sensor provided in an inside air inlet provided at the foot of the front seat. A two oxygen sensor 11 is provided. Outputs of the first oxygen sensor 10 and the second oxygen sensor 11 are input to the control unit 20. When it is determined that the oxygen concentration is decreasing based on the data of these oxygen sensors, various devices are operated based on the determination criteria of the control unit.

  First, if the oxygen concentration is determined to be about 18% to 16% (first stage) as a result of determination by the control unit 20 based on the outputs of the first oxygen sensor 10 and the second oxygen sensor 11, warning means is provided. The warning buzzer 31 and the warning message 32 are output as 30, and a warning sound (buzzer sound) set in advance and a message such as “Oxygen concentration is low” or “please ventilate”. Is set to emit.

  Next, as a result of determination by the control unit 20, when it is determined that the oxygen concentration is about 16% to 12% (second stage), an output is made to the warning buzzer 31 and the warning message 32 as the warning means 30, and oxygen Unlike the concentration range of 18% to 16% (1st stage), it is set to repeat a short message such as “Low oxygen concentration” or “Ventilation caution” while increasing the degree of urgency and generating a short or interval buzzer sound. Has been. Further, an output is made to the air-conditioning means 40, and when the inside / outside air switching damper 42 is opened to the outside air side and the blower motor 41 is turned off, it is switched to ON. As a result, outside air is actively taken in, and a decrease in the cabin oxygen concentration can be prevented. At this time, as means for positively increasing the oxygen concentration, a configuration in which the oxygen concentration is increased by an oxygen-enriched film may be provided. Moreover, it is good also as a structure which attaches the portable oxygen supplier marketed and supplies oxygen.

  Further, when the control unit 20 determines that the oxygen concentration is 12% or less (third stage), an output is made to the warning buzzer 31 and the warning message 32 as the warning means 30, and the oxygen concentration is from 16% to In order to increase the degree of urgency further than about 12% (second stage), a buzzer is emitted at shorter intervals or at intervals, and a shorter message such as “decrease in oxygen concentration” or “evacuation” is set to repeat. At the same time, the telephone device 51 as the reporting means 50 for reporting to the outside is notified to the emergency. At this time, the current position information of the vehicle is simultaneously transmitted based on GPS data provided in the telephone device 51 or GPS data of the car navigation system. Further, by flashing a hazard lamp 52 as the reporting means 50, an abnormal state of the vehicle is reported to the surroundings of the vehicle. Further, the power window 60 is opened so that emergency treatment can be easily performed.

  Next, the determination flow will be described with reference to the flowchart of FIG. 2 showing the operation of the vehicle air conditioning system of this embodiment.

  First, when it is determined in step S201 that the oxygen concentration is 18% or less, the process proceeds to step S202, and it is determined whether or not the oxygen concentration is 16% or less. When it is determined that the oxygen concentration is higher than 16% (first stage), a warning sound (buzzer sound) and a warning message of the first stage are issued in step S208, the passenger is warned, and the process is terminated.

  Next, when it is determined that the oxygen concentration is 16% or less, the process proceeds to step S203, and it is determined whether or not the oxygen concentration is 12% or less. When it is determined that the oxygen concentration is higher than 12% (second stage), a warning sound (buzzer sound) and a warning message shorter than the first stage are issued in step S209 to warn the passenger, and in step S210 The air switching damper 42 is switched to the outside air side. Furthermore, if the blower motor is turned off in step S211, the blower motor is turned on and the process is terminated.

  Further, when it is determined that the oxygen concentration is 12% or less, it is determined that the vehicle is in a dangerous state (third stage), and a warning sound (buzzer sound) and a warning message that are shorter than the second stage are issued in step S204. In addition to warning the occupant, the telephone device 51 serving as the reporting means 50 notifies the emergency together with the vehicle position information in step S205. Next, the hazard lamp 52 as the reporting means 50 is blinked at step S206, and the power window 60 is opened at step S207.

The block diagram which shows the structure of the vehicle air conditioning system of this embodiment. The flowchart which shows operation | movement of the vehicle air conditioning system of this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... 1st oxygen sensor 11 ... 2nd oxygen sensor 20 ... Control part 30 ... Warning means 31 ... Warning buzzer 32 ... Warning message 40 ... Air-conditioning means 41 ... Blower motor 42 ... Inside / outside air switching damper 50 ... Notification means 51 ... Telephone apparatus 52 ... Hazard lamp 60 ... Power window

Claims (6)

Oxygen concentration detection means for detecting the oxygen concentration inside the vehicle;
Control means for making a determination based on oxygen concentration information from the oxygen concentration detection means;
A vehicular air conditioning system comprising warning means and air conditioning means that operate based on the control means. The vehicle air conditioning system according to claim 1, wherein the warning means is a warning buzzer or a warning message for an occupant. The vehicle air conditioning system according to claim 1 or 2, wherein the air conditioning means is a blower motor and an inside / outside air switching damper. The vehicle air conditioning system according to any one of claims 1 to 3, further comprising reporting means for reporting the state of the vehicle to the outside. The vehicle air conditioning system according to claim 4, wherein the reporting unit is an in-vehicle telephone device or a communication device. The vehicle air conditioning system according to claim 4, wherein the reporting unit notifies a vehicle condition to the surroundings of the vehicle by blinking a hazard lamp.

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