CN201396890Y - Vehicular air exchange control system - Google Patents
Vehicular air exchange control system Download PDFInfo
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- CN201396890Y CN201396890Y CN2009201717459U CN200920171745U CN201396890Y CN 201396890 Y CN201396890 Y CN 201396890Y CN 2009201717459 U CN2009201717459 U CN 2009201717459U CN 200920171745 U CN200920171745 U CN 200920171745U CN 201396890 Y CN201396890 Y CN 201396890Y
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- temperature sensor
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Abstract
The utility model discloses a vehicular air exchange control system, the data of a carbon dioxide concentration sensor, a water temperature sensor and a temperature sensor is collected in real time bya single-chip, the collected data is compared with the values stored in the single-chip, and an air supply system can be turned on or off in timing based on the compared result. The utility model solves the problem that the present vehicular ventilating system is manually operated, according to the vehicular air exchange control system, the carbon dioxide concentration in the vehicle can be automatically detected, and an air blowing system can be automatically turned on or off. The air quality in the vehicle can be automatically controlled to conform to the international requirement always, the energy of the vehicle can be greatly saved due to the automatic control of refresh air, at the same time, the driver can no turn on or off the air blowing system in timing.
Description
Technical field
The utility model relates to a kind of Vehicular ventilation control system.
Background technology
Air-conditioned passenger train causes air quality severe contamination in the car easily because of circulation in its good sealing property and long-time the use, and people's health is caused great threat.Carbon dioxide is one of normal composition of human body breath, and its toxicity is also little, but the carbon dioxide of high concentration can cause people's dizziness, feels sick, expiratory dyspnea, vomiting etc.; Now the R-134a cold-producing medium that uses of air-conditioning has certain pollution to environment, just replaced by carbon dioxide coolant planned, so air-conditioning system also may produce carbon dioxide leakage, influences the healthy of driver and crew.The carbon dioxide composition can not surpass 0.15% (1500PPM) in GB/T17729-1999 " air quality requires in the coach car " the regulation coach, and the need of work driver hand switch control of the interior supply air system of car at present, can not determine whether the needs unlatching or close air exchange system according to gas concentration lwevel in the car exactly, can only feel to judge whether to open or close air exchange system according to driver's individual, be difficult to like this guarantee that the air quality in the car complies with the national standard requirements.Close supply air system for a long time and cause interior anoxic of car and gas concentration lwevel to increase easily, cause automobile fuel consumption to increase easily and open supply air system for a long time.
The utility model content
Technical problem to be solved in the utility model provides the interior gas concentration lwevel of a kind of automatic inspection vehicle and opens and closes the Vehicular ventilation control system of supply air system in view of the above.
The technical scheme that the utility model adopted is:
Vehicular ventilation control system, comprise single-chip microcomputer, gas concentration lwevel acquisition module, cooling-water temperature sensor, LCD display module, sinciput ventilation control motor, after take one's place gas control system motor, driver control motor, Air conditioner air exchange control motor, after take one's place gas control system blower fan, the water pump that draws water, hot water way solenoid valve, temperature sensor.
The output of gas concentration lwevel acquisition module, cooling-water temperature sensor, temperature sensor is connected with single-chip microcomputer, the demonstration output signal of single-chip microcomputer is connected with the LCD display module, single-chip microcomputer export 7 tunnel control signals respectively with sinciput ventilation control motor, after take one's place gas control system motor, driver control motor, Air conditioner air exchange control motor, after take one's place gas control system blower fan, the water pump that draws water is connected with the hot water way solenoid valve.
Described single-chip microcomputer adopts PIC16F887,
Described cooling-water temperature sensor adopts thermistor,
Described LCD display module adopts 12864 Chinese fonts lcd modules, and the driving chip is ST7920,
Described temperature sensor adopts a line system temperature sensor DS18B20.
Good effect of the present utility model is: the utility model uses interior circulation to cause air quality pollution in the car at present air-conditioned passenger train is long-time because of its good sealing property reaches, thereby to people's health threaten and car in many disadvantages such as the inconvenient and control effect of the use that exists of the manual air interchanger that uses is relatively poor, a kind of automatic air exchange control system of designing.Automatically gas concentration lwevel and open and close the Vehicular ventilation control system of supply air system according to the concentration height automatically in the inspection vehicle.Can control automatically that air quality meets the GB requirement all the time in the car, the automatic control of the Yin Cheneixin wind energy consumption of having saved automobile greatly makes the driver can remove the trouble of time switch supply air system from simultaneously again.
Description of drawings
Fig. 1 is the utility model structure principle chart.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Vehicular ventilation control system is a kind of vehicle-mounted new wind control system of developing at the ventilatory defect that the manual air interchanger of existing passenger vehicle exists.Its basic principle is to adopt single-chip microcomputer that gas concentration lwevel sensor, cooling-water temperature sensor and temperature sensor are gathered in real time, and the value of collection value and single-chip microcomputer storage inside is compared, and according to comparison result, removes to open in good time or close plenum system.
This system is installed in passenger car inside, in the vehicle driving process, control system can be monitored air quality in the car in real time, and gas concentration lwevel surpasses going up in limited time of setting threshold in finding car, control system can be opened the automobile plenum system automatically, and new wind is provided in car; When safety value that gas concentration lwevel in the car reaches setting just behind the lower limit, control system can be closed supply air system automatically.Can control automatically that air quality meets the GB requirement all the time in the car, the automatic control of the Yin Cheneixin wind energy consumption of having saved automobile greatly makes the driver can remove the trouble of time switch supply air system from simultaneously again! It is first choice of the luxurious configuration of modern bus energy-conserving and environment-protective that automobile-used carbon dioxide detects control module.
As shown in Figure 1, this control system adopts single-chip microcomputer 1 to control, comprise gas concentration lwevel acquisition module 2, cooling-water temperature sensor 3, LCD display module 4, sinciput ventilation control motor 5, after take one's place gas control system motor 6, driver control motor 7, Air conditioner air exchange control motor 8, after take one's place gas control system blower fan 9, parts such as the water pump 10 that draws water, hot water way solenoid valve 11 and temperature sensor 12.
The output of gas concentration lwevel acquisition module 2, cooling-water temperature sensor 3 and temperature sensor 12 is connected with single-chip microcomputer 1, the demonstration output signal of single-chip microcomputer 1 is connected with LCD display module 4, single-chip microcomputer 1 output 7 tunnel control signals respectively with sinciput ventilation control motor 5, after take one's place gas control system motor 6, driver control motor 7, Air conditioner air exchange control motor 8, after take one's place gas control system blower fan 9, the water pump 10 that draws water is connected with hot water way solenoid valve 11.
The effect of each several part is as follows:
Sinciput ventilation control motor 5: open under the warming and aeration state, air in the car is discharged outside the car.
After take one's place gas control system motor 6: open under the warming and aeration state, the outer fresh air of car be introduced in the car.
The driver controls motor 7: all open under natural ventilation and the warming and aeration two states, air in the car is discharged outside the car.
Air conditioner air exchange control motor 8: open under the natural ventilation state, the outer fresh air of car is introduced in the car.
After take one's place gas blower fan 9: strengthen the flow velocity of fresh air into the car, increase air inflow.
Water pump 10 draws water: after under the warming and aeration function hot water in the engine loop being evacuated to car in the jacking air flue, fresh air heating into the car.
Hot water way solenoid valve 11: after the warming and aeration function is opened, this magnetic valve path, hot engine water can enter in the roof air intake duct.
This control system adopts gas concentration lwevel in NDIR principle (NDIR) the self calibration technology for detection car, simultaneously engine water tank water temperature and vehicle interior temperature are monitored in real time, shown, and a gas concentration lwevel safety threshold values and the Che Nei gas concentration lwevel measured result set compared, whether reach setting according to the water tank water temperature again and open or close plenum system automatically; Have two kinds of ventilatories of natural ventilation and warming and aeration.Also allow the user that the upper lower limit value size of ventilation is provided with, thus more humane gas concentration lwevel in the car is controlled.
Hardware design:
Single-chip microcomputer 1 adopts 8 single-chip microcomputer PIC16F887 of MICROCHIP, and PIC16F887 has abundant peripheral hardware and very high cost performance, is native system ideal control MCU; 12864 Chinese fonts lcd modules are adopted in liquid crystal display, adopt the parallel port to control.Output driving circuit adopts ULN2003A to drive chip and drives relay, the control external motor.
Gas concentration lwevel acquisition module 2: adopt the detection of NDIR principle (NDIR) self calibration technology realization to gas concentration lwevel in the car.
Cooling-water temperature sensor 3: adopt the thermistor of negative temperature system to detect the water tank water temperature.
LCD display module 4: adopt the parallel port to be connected with single-chip microcomputer, data transmission bauds is fast.
Temperature sensor 12: adopt 1-WIRE temperature sensor DS18B20.
Main electrical parameters
1, measurement category: 0～2000ppm;
Precision: 3% of 25 ℃ of time ± 40ppm or reading;
Temperature effect: 0.2% of full scale/℃;
Pressure influence: the error that every mmhg pressure produces is 0.13% of a current input value;
2, the reaction time:＜2min;
Interval of calibration: do not have;
Preheating time: to uptime＜2min;
To the about 10min of maximum accurately output;
3, condition of work: 0～50 ℃; 0～95%RH relative humidity, no condensation;
4, storage temperature :-40～70 ℃;
5, supply voltage: DC24V;
The concise and to the point course of work is as follows:
After the native system power-up initializing, LCD shows water temperature, temperature, the gas concentration lwevel of gathering in real time, but output control terminal is in closed condition, if press " natural ventilation " button, then system enters the natural ventilation state, if press " warming and aeration " button, then enters the warming and aeration state.
When being in the natural ventilation state,, then close the ventilation blower fan if press " natural ventilation " button once more; If what press is " warming and aeration " button, then be directly switch to the warming and aeration state.
When being in the warming and aeration state,, then also close the ventilation blower fan if press " warming and aeration " button; If what press is " natural ventilation " button, then switch to the natural ventilation state.
Natural ventilation: during the natural ventilation state, system can judge according to gas concentration lwevel in the car and bound threshold values, the control of taking a breath automatically.
Warming and aeration: during the warming and aeration state, the automatic control of taking a breath then can comprehensively be judged simultaneously by system according to water temperature and gas concentration lwevel value.
Claims (2)
1, Vehicular ventilation control system, comprise single-chip microcomputer (1), gas concentration lwevel acquisition module (2), cooling-water temperature sensor (3), LCD display module (4), sinciput ventilation control motor (5), after take one's place gas control system motor (6), driver control motor (7), Air conditioner air exchange control motor (8), after take one's place gas control system blower fan (9), the water pump that draws water (10), hot water way solenoid valve (11), temperature sensor (12), it is characterized in that:
The output of gas concentration lwevel acquisition module (2), cooling-water temperature sensor (3), temperature sensor (12) is connected with single-chip microcomputer (1), the demonstration output signal of single-chip microcomputer (1) is connected with LCD display module (4), single-chip microcomputer (1) output 7 tunnel control signals respectively with sinciput ventilation control motor (5), after take one's place gas control system motor (6), driver control motor (7), Air conditioner air exchange control motor (8), after take one's place gas control system blower fan (9), the water pump that draws water (10) and hot water way solenoid valve (11) and be connected.
2, Vehicular ventilation control system as claimed in claim 1 is characterized in that:
Described single-chip microcomputer (1) adopts PIC16F887,
Described cooling-water temperature sensor (3) adopts thermistor,
Described LCD display module (4) adopts 12864 Chinese fonts lcd modules, and the driving chip is ST7920,
Described temperature sensor (12) adopts a line system temperature sensor DS18B20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201717459U CN201396890Y (en) | 2009-04-27 | 2009-04-27 | Vehicular air exchange control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201717459U CN201396890Y (en) | 2009-04-27 | 2009-04-27 | Vehicular air exchange control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201396890Y true CN201396890Y (en) | 2010-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201717459U Expired - Fee Related CN201396890Y (en) | 2009-04-27 | 2009-04-27 | Vehicular air exchange control system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650463A (en) * | 2012-04-27 | 2012-08-29 | 浙江吉利汽车研究院有限公司杭州分公司 | Air exchange system and air exchange method of automotive interior air |
| CN103017301A (en) * | 2011-09-20 | 2013-04-03 | 王峰 | Automatic air renewal system and automatic air renewal method of automobile air conditioner |
| CN103029549A (en) * | 2012-09-26 | 2013-04-10 | 浙江吉利汽车研究院有限公司杭州分公司 | In-car air conditioning system |
| CN103673224A (en) * | 2013-12-06 | 2014-03-26 | 中铁建设集团有限公司 | Fresh air purifying control system based on air quality forecasting |
| CN105466860A (en) * | 2014-09-30 | 2016-04-06 | 帕拉贡股份公司 | Co2-concentration sensor for interior use |
| WO2021146783A1 (en) * | 2020-01-22 | 2021-07-29 | Nabhan Jose Marcos | Gas sensing device designed for environmental decontamination with simultaneous alert emission |
-
2009
- 2009-04-27 CN CN2009201717459U patent/CN201396890Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017301A (en) * | 2011-09-20 | 2013-04-03 | 王峰 | Automatic air renewal system and automatic air renewal method of automobile air conditioner |
| CN103017301B (en) * | 2011-09-20 | 2016-01-20 | 北斗卫星应用科技(上海)有限公司 | A kind of automatic ventilation system for automotive air conditioner and automatic air-exchanging method |
| CN102650463A (en) * | 2012-04-27 | 2012-08-29 | 浙江吉利汽车研究院有限公司杭州分公司 | Air exchange system and air exchange method of automotive interior air |
| CN103029549A (en) * | 2012-09-26 | 2013-04-10 | 浙江吉利汽车研究院有限公司杭州分公司 | In-car air conditioning system |
| CN103029549B (en) * | 2012-09-26 | 2015-03-25 | 浙江吉利汽车研究院有限公司杭州分公司 | In-car air conditioning system |
| CN103673224A (en) * | 2013-12-06 | 2014-03-26 | 中铁建设集团有限公司 | Fresh air purifying control system based on air quality forecasting |
| CN103673224B (en) * | 2013-12-06 | 2017-01-11 | 中铁建设集团有限公司 | Fresh air purifying control system based on air quality forecasting |
| CN105466860A (en) * | 2014-09-30 | 2016-04-06 | 帕拉贡股份公司 | Co2-concentration sensor for interior use |
| WO2021146783A1 (en) * | 2020-01-22 | 2021-07-29 | Nabhan Jose Marcos | Gas sensing device designed for environmental decontamination with simultaneous alert emission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HEFEI BANGLI ELECTRONIC CO., LTD. Free format text: FORMER OWNER: BANGLI ELECTRONIC CO., LTD., HEFEI Effective date: 20110506 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 231200 JUNCTION OF XIANGPU ROAD AND YINGHUA ROAD, BOYAN SCIENCE AND TECHNOLOGY PARK, HIGH-TECH. ZONE, HEFEI CITY, ANHUI PROVINCE TO: 231202 NO. 3, XIANGPU ROAD, BOYAN SCIENCE AND TECHNOLOGY PARK, HIGH-TECH. DEVELOPMENT AREA, HEFEI CITY, ANHUI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110506 Address after: 231202, No. 3 Pu Pu Road, Bai Yan Science Park, hi tech Development Zone, Anhui, Hefei Patentee after: Hefei Bangli Electronic Co., Ltd. Address before: 231200, Anhui hi tech Zone, Hefei province weir science and Technology Park, Shannon road and cherry Road intersection Patentee before: Hefei Bangli Electronic Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100203 Termination date: 20170427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |