CN102563823A - Intelligent all fresh air conditioning control system for natural gas bus and control method - Google Patents
Intelligent all fresh air conditioning control system for natural gas bus and control method Download PDFInfo
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- CN102563823A CN102563823A CN2012100453021A CN201210045302A CN102563823A CN 102563823 A CN102563823 A CN 102563823A CN 2012100453021 A CN2012100453021 A CN 2012100453021A CN 201210045302 A CN201210045302 A CN 201210045302A CN 102563823 A CN102563823 A CN 102563823A
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Abstract
The invention discloses an intelligent all fresh air conditioning control system for a natural gas bus and a control method. The intelligent all fresh air conditioning control system comprises a controller, an actuating device, an internal bus temperature sensor and an external bus temperature sensor. The actuating device consists of a return air door electric actuator, an overflow air door electric actuator and a fresh air door electric actuator; the internal bus temperature sensor and the external bus temperature sensor are respectively connected with corresponding input ends of the controller, output ends of the controller are respectively connected with control ends of the three air door electric actuators, and a feedback end of the return air door electric actuator is connected with a corresponding input end of the controller; and output shafts of the fresh air electric actuator, the overflow air door electric actuator and the return air door electric actuator are respectively connected with rotary shafts of a fresh air door, an overflow air door and an air return door on the bus. The control method is completed by the aid of the control system. By the aid of the intelligent all fresh air conditioning control system and the control method, an air-refreshing function and an air conditioning function can be automatically started and stopped according to changes of difference between the internal bus temperature and the external bus temperature, intelligent control is realized, and a comfortable environment with fresh air can be provided.
Description
Technical field
The present invention relates to the brand-new wind control of a kind of bus using natural gas intelligence system and method, be applied to use natural gas (CNG), liquefied petroleum gas (LPG) to act as a fuel and air quality and the energy-conserving and environment-protective urban public traffic vehicles air-conditioning that has certain requirements.
Background technology
The raising that along with country vehicular discharge is required in recent years; Generally III progressively carries out the transition to Europe IV level to the public transit vehicle of use fuel oil from Europe; And the public transit vehicle that adopts natural gas to act as a fuel is compared the public transit vehicle that uses fuel oil; Lower nitrogen oxide and granular material discharged is arranged, and better advantage such as economy, the rich gas province is applied in enormous quantities in the Midwest.
But; Aircondition as one of bus using natural gas parts; The VMC that is adopted can only the new wind function of simple unidirectional introducing, can only through simple manually opened with close new air door, the new wind in the external world is introduced in the car; Not obvious to air quality improvement effect in the car, also be unfavorable for realizing energy-conserving and environment-protective; And can not realize Based Intelligent Control, promptly can not adjust the resh air requirement size in good time, realize that 0%～100% stepless new wind is regulated, can not realize purpose with fresh air and energy-conservation according to the variation of car internal and external temperature.
Summary of the invention
The technical problem that the present invention will solve provides and a kind ofly can realize Based Intelligent Control, can effectively improve the intelligent whole fresh wind air-condition control system and method for air quality in the car.
For solving the problems of the technologies described above, the technical scheme that the present invention taked is: a kind of bus using natural gas intelligence whole fresh wind air-condition is controlled system, and its key technology is: comprise controller, actuating unit and temperature sensor; Said actuating unit comprises return air door YE, overflow air door YE and new air door YE, and said temperature sensor comprises outer temperature sensor of car and vehicle interior temperature sensor; Outer temperature sensor of said car and vehicle interior temperature sensor connect the respective input of controller respectively; The output of said controller connects new air door YE respectively, the control end of overflow air door YE and return air door YE, the respective input of the feedback termination controller of said return air door YE; The output shaft of said new air door YE, overflow air door YE and return air door YE respectively with bus on new air door, the rotating shaft of overflow air door and return air door be connected.
Above-mentioned controller comprises single-chip microcomputer U1, digital to analog converter U2, operational amplifier U3, triode T1-T4 and resistance R 1-R8; Said single-chip microcomputer U1 model is TMP86FH46; The model of digital to analog converter U2 is DAC0832; The 9-12 pin of said single-chip microcomputer U1 connects the input 7-4 pin of digital to analog converter U2 respectively successively; The 13-16 pin of single-chip microcomputer U1 connects the input 16-13 pin of digital to analog converter U2 respectively successively, and 11 pin of digital to analog converter U2,12 pin connect inverting input, the in-phase input end of operational amplifier U3 respectively, the in-phase input end ground connection of operational amplifier U3; Input 9 pin of the output termination digital to analog converter U2 of operational amplifier U3; The output of operational amplifier U3 takes back the control end of air door YE, is connected between the feedback end and ground of return air door YE after said resistance R 1, the R4 series connection, and resistance R 1 and the node of resistance R 4 connect input 42 pin of single-chip microcomputer U1; 40 pin of single-chip microcomputer U1,41 pin meet VCC through resistance R 3 and resistance R 2 respectively; Output 30 pin of single-chip microcomputer U1,31 pin connect the base stage of triode T3, T1 respectively through resistance R 7, R5; The emitter stage of triode T3, T1 is ground connection respectively; The colelctor electrode of triode T3, T1 connects the base stage of triode T4, T2 respectively through resistance R 8, R6; The emitter stage of triode T4, T2 connects 24V voltage respectively, and the colelctor electrode of triode T4, T2 connects the control end of said excessive air door YE, new air door YE respectively.
Above-mentioned new air door YE and excessive air door YE model are LM24-F, and said return air door YE model is LMU24-SR.
The outer temperature sensor of above-mentioned vehicle interior temperature sensor and car is the NTC thermistor; The output of two NTC thermistors connects input 40 pin, 41 pin of single-chip microcomputer U1 respectively.
Above-mentioned bus using natural gas intelligence whole fresh wind air-condition is controlled the control method of system, and it may further comprise the steps:
1., before air-conditioning is opened; Single-chip microcomputer U1 is by the height of the outer temperature sensor of car and outer temperature of vehicle interior temperature sensor inspection trolley and vehicle interior temperature; When vehicle interior temperature than car outside temperature high more than 4 ℃ the time, through the control of single-chip microcomputer U1, open new air door and excessive air door; Close the return air door simultaneously, make car internal and external temperature balance;
2., then pass through the control of single-chip microcomputer U1, open the bus air conditioner refrigerating, open return air door (9), and close new air door, excessive air door; At this moment, outer temperature of outer temperature sensor of car and vehicle interior temperature sensor inspection in per 10 minutes one train and vehicle interior temperature, and calculate the difference between itself and the design temperature by single-chip microcomputer U1;
3., when vehicle interior temperature than car outside temperature high, and the outer temperature of car opens new air door, excessive air door when lower than design temperature, closes air conditioner refrigerating, closes the return air door;
4., along with the car entering of fresh cold air outward; Hot-air is constantly discharged from the air port of overflowing in the car, treats that vehicle interior temperature is reduced to when equating with design temperature, and single-chip microcomputer U1 adjustment return air door is opened certain angle; Make in the car a part of hot-air also participate in circulation, make vehicle interior temperature be not less than design temperature.
Adopt the beneficial effect that technique scheme produced to be: controller, temperature sensor and the return air door YE of the present invention through being provided with; Can change according to car internal and external temperature difference and open and close automatically new wind and air-conditioning; And the angle of adjusting return air door that can be real-time; Realize closed-loop control, regulate, realized Based Intelligent Control thereby can realize mixing accurately the wind ratio; Not only can also can farthest realize saving energy and reduce the cost for the bus using natural gas compartment provides comfortable pure and fresh air environment.
Description of drawings
Fig. 1 is a FB(flow block) of the present invention;
Fig. 2 is circuit theory diagrams of the present invention;
Wherein, 1, controller; 2, vehicle interior temperature sensor; 3, the outer temperature sensor of car; 4, new air door YE; 5, excessive air door YE; 6, return air door YE; 7, new air door; 8, excessive air door; 9, return air door.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation.
Referring to accompanying drawing 1, system of the present invention comprises controller 1, actuating unit and temperature sensor; Said actuating unit comprises return air door YE 6, overflow air door YE 5 and new air door YE 4, and said temperature sensor comprises outer temperature sensor 3 of car and vehicle interior temperature sensor 2; Outer temperature sensor 3 of said car and vehicle interior temperature sensor 2 connect the respective input of controller 1 respectively; The output of said controller 1 connects new air door YE 4 respectively, the control end of overflow air door YE 5 and return air door YE 6, the respective input of the feedback termination controller 1 of said return air door YE 6; The output shaft of said new air door YE 4, overflow air door YE 5 and return air door YE 6 respectively with bus on new air door 7, the rotating shaft of overflow air door 8 and return air door 9 be connected.
Referring to accompanying drawing 2, above-mentioned controller 1 comprises single-chip microcomputer U1, digital to analog converter U2, operational amplifier U3, triode T1-T4 and resistance R 1-R8; Said single-chip microcomputer U1 model is TMP86FH46; The model of digital to analog converter U2 is DAC0832; The 9-12 pin of said single-chip microcomputer U1 connects the input 7-4 pin of digital to analog converter U2 respectively successively; The 13-16 pin of single-chip microcomputer U1 connects the input 16-13 pin of digital to analog converter U2 respectively successively, and 11 pin of digital to analog converter U2,12 pin connect inverting input, the in-phase input end of operational amplifier U3 respectively, the in-phase input end ground connection of operational amplifier U3; Input 9 pin of the output termination digital to analog converter U2 of operational amplifier U3; The output of operational amplifier U3 takes back the control end of air door YE 6, is connected between the feedback end and ground of return air door YE 6 after said resistance R 1, the R4 series connection, and resistance R 1 and the node of resistance R 4 connect input 42 pin of single-chip microcomputer U1; 40 pin of single-chip microcomputer U1,41 pin meet VCC through resistance R 3 and resistance R 2 respectively;
The angle control signal of above-mentioned controller 1 output 2V～10V voltage is given return air door YE 6, and return air door YE 6 control return air doors 9 can rotate between 0 °～90 °, wherein, and 0 ° of 2V voltage corresponding angle, 90 ° of 10V voltage corresponding angles; The position feed back signal of return air door YE 6 output 2V～10V voltages is given controller 1 simultaneously; Corresponding return air door angle is at 0 ° during output 2V; Corresponding return air door angle is at 90 ° during output 10V voltage, thereby realizes closed-loop control accurately, realizes intelligent regulatory function.
Above-mentioned new air door YE 4 adopts Switzerland BELIMO brand with excessive air door YE 5, and specification is LM24-F, peak torque 2Nm.Return air door YE 6 adopts Switzerland BELIMO brand, and specification is LMU24-SR, peak torque 5Nm.Vehicle interior temperature sensor 2 is the NTC thermistor with the outer temperature sensor 3 of car, plays the outer action of temperature of induction vehicle interior temperature and car respectively, and the output of two NTC thermistors connects input 40 pin, 41 pin of single-chip microcomputer U1 respectively.
The control method step of the above control system is following:
1, open air-conditioning at every turn before, controller module utilizes the height of the outer temperature sensor 3 of car and outer temperature of vehicle interior temperature sensor 2 inspection trolleys and vehicle interior temperature;
2, when vehicle interior temperature than car outside temperature high more than 4 ℃ the time, through the control of controller 1, open new air door 7, close return air door 9, open the air door 8 that overflows, make car internal and external temperature balance;
3, afterwards,, open refrigeration, open return air door 9, close new air door 7, air door 8 overflows through the control of controller 1;
4, after air-conditioning is opened, utilize outer temperature sensor 3 of car and vehicle interior temperature sensor 2, per 10 minutes outer temperature of inspection one trains, vehicle interior temperature, and utilize controller 1 to calculate the difference between itself and the design temperature;
Process through step 1-4; Can the outer low temperature fresh air of car be introduced in the car; To in the compartment because the sun is exposed to the sun the high temperature that produces tentatively lower the temperature, and then open refrigeration, this process has very obvious effects in the high temperature sky; Can reduce thermic load in the car rapidly, to realizing the energy-conservation active influence that also has.
5, when vehicle interior temperature than car outside temperature high, and the outer temperature of car is when lower than design temperature, opens new air door 7, excessive air door 8, closes refrigeration, closes return air door 9;
6, in the process of opening brand-new wind, along with the entering of the outer fresh cold air of car, hot-air is constantly discharged from the air port of overflowing in the car; Make vehicle interior temperature descend; Be reduced to when equating with design temperature to vehicle interior temperature, the angle of controller 1 adjustment return air door 9 lets in the car a part of hot-air also participate in circulation; The cold air outer with car mixes, and makes vehicle interior temperature be unlikely to drop to below the design temperature.Its course of action is: brand-new wind operation vehicle interior temperature descends; This moment, return air door 9 angles were 90 °, and when dropping near design temperature, controller 1 is according to the angle of car internal and external temperature difference adjustment return air door 9; The angle of different return air door 9 adjustment of car internal and external temperature difference is also different; Vehicle interior temperature is stabilized near the design temperature, and when vehicle interior temperature had the design temperature of departing from the running, the controller 1 in time angle of adjustment return air door 9 remained vehicle interior temperature near design temperature.Here return air door 9 angles are whole open modes in the time of 0 °, and this moment, all the interior hot-air of car was participated in circulation; Return air door 9 angles more hour, the ratio of then mixing hot-air in the wind wind is big more, on the contrary then the ratio of cold air is big more; Return air door 9 Close Alls in the time of 90 ° do not have hot-air participation circulation in the car this moment, all are the outer cold air of car.
Process through step 5-6; Originally needed compressor operating to realize that the step of cooling replaces by introducing the outer fresh cold air of car; Originally need realize the process of constant temperature through the compressor start-stop; The ratio of mixing through outer new wind of adjustment car and Che Nei hot-air realizes constant temperature, uses the important effect of being provided with of this process of air-conditioning in season in spring and autumn, for realizing the energy-conservation active influence that also has.
Claims (5)
1. a bus using natural gas intelligence whole fresh wind air-condition control system is characterized in that: comprise controller (1), actuating unit and temperature sensor; Said actuating unit comprises return air door YE (6), overflow air door YE (5) and new air door YE (4), and said temperature sensor comprises outer temperature sensor (3) of car and vehicle interior temperature sensor (2); Outer temperature sensor (3) of said car and vehicle interior temperature sensor (2) connect the respective input of controller (1) respectively; The output of said controller (1) connects new air door YE (4) respectively, the control end of overflow air door YE (5) and return air door YE (6), the respective input of the feedback termination controller (1) of said return air door YE (6); The output shaft of said new air door YE (4), overflow air door YE (5) and return air door YE (6) respectively with bus on new air door (7), the rotating shaft of overflow air door (8) and return air door (9) be connected.
2. bus using natural gas intelligence whole fresh wind air-condition according to claim 1 is controlled system, and it is characterized in that: said controller (1) comprises single-chip microcomputer U1, digital to analog converter U2, operational amplifier U3, triode T1-T4 and resistance R 1-R8; Said single-chip microcomputer U1 model is TMP86FH46; The model of digital to analog converter U2 is DAC0832; The 9-12 pin of said single-chip microcomputer U1 connects the input 7-4 pin of digital to analog converter U2 respectively successively; The 13-16 pin of single-chip microcomputer U1 connects the input 16-13 pin of digital to analog converter U2 respectively successively, and 11 pin of digital to analog converter U2,12 pin connect inverting input, the in-phase input end of operational amplifier U3 respectively, the in-phase input end ground connection of operational amplifier U3; Input 9 pin of the output termination digital to analog converter U2 of operational amplifier U3; The output of operational amplifier U3 takes back the control end of air door YE (6), is connected between the feedback end and ground of return air door YE (6) after said resistance R 1, the R4 series connection, and resistance R 1 and the node of resistance R 4 connect input 42 pin of single-chip microcomputer U1; 40 pin of single-chip microcomputer U1,41 pin meet VCC through resistance R 3 and resistance R 2 respectively;
Output 30 pin of single-chip microcomputer U1,31 pin connect the base stage of triode T3, T1 respectively through resistance R 7, R5; The emitter stage of triode T3, T1 is ground connection respectively; The colelctor electrode of triode T3, T1 connects the base stage of triode T4, T2 respectively through resistance R 8, R6; The emitter stage of triode T4, T2 connects 24V voltage respectively, and the colelctor electrode of triode T4, T2 connects the control end of said excessive air door YE (5), new air door YE (4) respectively.
3. bus using natural gas intelligence whole fresh wind air-condition according to claim 2 is controlled system; It is characterized in that: said new air door YE (4) and excessive air door YE (5) model are LM24-F, and said return air door YE (6) model is LMU24-SR.
4. a kind of bus using natural gas intelligence whole fresh wind air-condition according to claim 2 is controlled system, and it is characterized in that: the outer temperature sensor (3) of said vehicle interior temperature sensor (2) and car is the NTC thermistor; The output of two NTC thermistors connects input 40 pin, 41 pin of single-chip microcomputer U1 respectively.
5. the described bus using natural gas intelligence of claim 1 whole fresh wind air-condition is controlled the control method of system, it is characterized in that: may further comprise the steps:
1., before air-conditioning is opened; Single-chip microcomputer U1 is by the height of the outer temperature sensor (3) of car and outer temperature of vehicle interior temperature sensor (2) inspection trolley and vehicle interior temperature; When vehicle interior temperature than car outside temperature high more than 4 ℃ the time, through the control of single-chip microcomputer U1, open new air door (7) and excessive air door (8); Close return air door (9) simultaneously, make car internal and external temperature balance;
2., then pass through the control of single-chip microcomputer U1, open the bus air conditioner refrigerating, open return air door (9), and close new air door (7), excessive air door (8); At this moment, outer temperature of outer temperature sensor (3) of car and vehicle interior temperature sensor (2) inspection in per 10 minutes one train and vehicle interior temperature, and calculate the difference between itself and the design temperature by single-chip microcomputer U1;
3., when vehicle interior temperature than car outside temperature high, and the outer temperature of car opens new air door (7), excessive air door (8) when lower than design temperature, closes air conditioner refrigerating, closes return air door (9);
4., along with the car entering of fresh cold air outward; Hot-air is constantly discharged from the air port of overflowing in the car; Treat that vehicle interior temperature is reduced to when equating with design temperature; Single-chip microcomputer U1 adjustment return air door (9) is opened certain angle, makes in the car a part of hot-air also participate in circulation, makes vehicle interior temperature be not less than design temperature.
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| CN201210045302.1A CN102563823B (en) | 2012-02-27 | 2012-02-27 | Intelligent all fresh air conditioning control system for natural gas bus and control method |
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| CN201210045302.1A CN102563823B (en) | 2012-02-27 | 2012-02-27 | Intelligent all fresh air conditioning control system for natural gas bus and control method |
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| CN102563823B CN102563823B (en) | 2014-03-26 |
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| US20020072322A1 (en) * | 2000-12-11 | 2002-06-13 | Phoenix Controls Corporation | Methods and apparatus for recirculating air in a controlled ventilated environment |
| CN2656185Y (en) * | 2003-11-10 | 2004-11-17 | 山东中通华盛强汽车空调有限公司 | Stepless mixed fresh air top-mounted air conditioner for bus |
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| CN201954671U (en) * | 2010-11-29 | 2011-08-31 | 劲达技术(河源)有限公司 | Stepless mixed new air clean type top-positioned air conditioner for vehicle |
| CN201964574U (en) * | 2011-03-17 | 2011-09-07 | 山东通盛制冷设备有限公司 | Energy-saving controller for vehicle air conditioner |
| CN102183073A (en) * | 2011-03-23 | 2011-09-14 | 聊城天海汽车电器有限公司 | Electronic control system for new energy vehicle air conditioner microcontroller |
| CN202470323U (en) * | 2012-02-27 | 2012-10-03 | 石家庄市公共交通总公司 | Intelligent full-fresh-air air-conditioning control system for natural gas bus |
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2012
- 2012-02-27 CN CN201210045302.1A patent/CN102563823B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07332737A (en) * | 1994-06-10 | 1995-12-22 | Kubota Corp | Air conditioning installation |
| US20020072322A1 (en) * | 2000-12-11 | 2002-06-13 | Phoenix Controls Corporation | Methods and apparatus for recirculating air in a controlled ventilated environment |
| CN2656185Y (en) * | 2003-11-10 | 2004-11-17 | 山东中通华盛强汽车空调有限公司 | Stepless mixed fresh air top-mounted air conditioner for bus |
| CN200949901Y (en) * | 2006-09-26 | 2007-09-19 | 上海加冷松芝汽车空调有限公司 | Vehicle air-conditioning device with model air door driving device |
| CN201954671U (en) * | 2010-11-29 | 2011-08-31 | 劲达技术(河源)有限公司 | Stepless mixed new air clean type top-positioned air conditioner for vehicle |
| CN201964574U (en) * | 2011-03-17 | 2011-09-07 | 山东通盛制冷设备有限公司 | Energy-saving controller for vehicle air conditioner |
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| CN202470323U (en) * | 2012-02-27 | 2012-10-03 | 石家庄市公共交通总公司 | Intelligent full-fresh-air air-conditioning control system for natural gas bus |
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Owner name: YU XINQUAN Free format text: FORMER OWNER: SHIJIAZHUANG PUBLIC TRANSPORTATION CORPORATION Effective date: 20121025 Free format text: FORMER OWNER: SONGZ AUTOMOBILE AIRCONDITIONING CO., LTD. Effective date: 20121025 |
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Effective date of registration: 20121025 Address after: 050021, No. 88 South Main Street, Hebei, Shijiazhuang Applicant after: Yu Xinquan Address before: 050021, No. 88 South Main Street, Hebei, Shijiazhuang Applicant before: Shijiazhuang Public Transport Co.,Ltd. Applicant before: Shanghai Songz Automobile Air Conditioning Co., Ltd. |
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Effective date of registration: 20170508 Address after: 050031 16-1-302, 191 Ling Ling Road, Yuhua District, Hebei, Shijiazhuang Patentee after: Zhao Li Address before: 050021, No. 88 South Main Street, Hebei, Shijiazhuang Patentee before: Yu Xinquan |
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Effective date of registration: 20171206 Address after: 201108 Shanghai Huaning Minhang District Industrial Zone Xhenzhuang Road No. 4999 Patentee after: Shanghai Songz Automobile Air Conditioning Co., Ltd. Address before: 050031 16-1-302, 191 Ling Ling Road, Yuhua District, Hebei, Shijiazhuang Patentee before: Zhao Li |