CN102922970A - Automobile air-conditioner control method - Google Patents
Automobile air-conditioner control method Download PDFInfo
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- CN102922970A CN102922970A CN2012105018144A CN201210501814A CN102922970A CN 102922970 A CN102922970 A CN 102922970A CN 2012105018144 A CN2012105018144 A CN 2012105018144A CN 201210501814 A CN201210501814 A CN 201210501814A CN 102922970 A CN102922970 A CN 102922970A
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Abstract
The invention provides an automobile air-conditioner control method, comprising the following steps that: firstly, a main control chip sends an instruction and transmits the instruction to an external application apparatus via a circuit; secondly, the external application apparatus acts and feeds an actual state back to the controller main chip after receiving the instruction; and finally, the main controller chip compares the received feedback signal with a standard, corrects a control signal, and sends a new instruction to the external application apparatus. In the method provided by the invention, the defect of the prior art is overcome; and the control signal is dynamically corrected through feedback, read and calculation of the external application apparatus to form a closed control system, so that the control result is more accurate and is not affected by the outside.
Description
Technical field
The present invention relates to a kind of air conditioning for automobiles control method, belong to air conditioning for automobiles control technology field.
Background technology
Traditional air conditioning for automobiles control method as shown in Figure 1, air-conditioner controller sends command adapted thereto, applications equipment moves by instruction and gets final product.Control system is not adjusted by feedback signal, does not form a closed loop, makes whole system control result accurate not.
Summary of the invention
The technical problem to be solved in the present invention provides accurately closed loop air conditioning for automobiles control method of a kind of control result.
In order to solve the problems of the technologies described above, technical scheme of the present invention provides a kind of air conditioning for automobiles control method, it is characterized in that: be comprised of following 3 steps:
Step 1: the controller master chip sends instruction and passes to applications equipment by circuit;
Step 2: applications equipment receive that the laggard action of instruction is done and with the feedback of status of reality to the controller master chip;
Step 3: the controller master chip calculates the feedback signal received and standard and compares, and control signal is revised, and sends new instruction to applications equipment;
When feedback signal during less than standard, controller can improve control command, makes feedback signal equal standard, reaches balance;
When feedback signal during greater than standard, controller can reduce control command, makes feedback signal equal standard, reaches balance;
When feedback signal equaled standard, controller can keep current control command, keeps balance.
A kind of air conditioning for automobiles control method provided by the invention is by comparing the feedback signal of applications equipment and standard are calculated, whether the instruction that master chip can be judged output is correct, whether the application apparatus current state reaches requirement, and the concurrent instruction that makes new advances allows external device reach requirement.By the control system of such closed loop, the result is more accurate in control.
Method provided by the invention has overcome the deficiencies in the prior art, reads and calculates by the feedback to outside application apparatus, dynamic Correction and Control signal, and the control system of a closed loop of formation makes the control result more accurate, more is not subjected to externalities.
Description of drawings
Fig. 1 is orthodox car air conditioning control method block diagram;
Fig. 2 is a kind of air conditioning for automobiles control method block diagram provided by the invention.
The specific embodiment
For the present invention is become apparent, hereby with a preferred embodiment, and cooperate accompanying drawing to be described in detail below.
Fig. 2 is a kind of air conditioning for automobiles control method block diagram provided by the invention.Automobile air conditioner control system comprises the control part of controller inside and receives feedback fraction, in house software calculating section and outside application feedback fraction.
A kind of air conditioning for automobiles control method is comprised of following 3 steps:
Step 1: the controller master chip sends instruction and passes to applications equipment by circuit;
Step 2: applications equipment receive that the laggard action of instruction is done and with the feedback of status of reality to the controller master chip;
Step 3: the controller master chip is compared feedback signal and the standard received, and control signal is revised, and sends new instruction to applications equipment;
When feedback signal during less than standard, controller can improve control command, makes feedback signal equal standard, reaches balance;
When feedback signal during greater than standard, controller can reduce control command, makes feedback signal equal standard, reaches balance;
When feedback signal equaled standard, controller can keep current control command, keeps balance.
Control circuit such as air conditioner blower, the air quantity that shows when controller is 3 grades, and this Time Controller output control voltage V1 is to the speed adjusting module of blowing engine, and this moment, speed adjusting module was started working, blowing engine is started working, and the terminal voltage V2 that feeds back a blower fan is to controller, and controller is compared the normal voltage VA3 of V2 and 3 grades, when V2＜VA3, controller can improve V1, change the terminal voltage that improves the blowing engine speed adjusting module, make V2=VA3, reach balance; When V2＞VA3, controller can reduce V1, changes the terminal voltage that reduces the blowing engine speed adjusting module, makes V2=VA3, reaches balance; When V2=VA3, controller can keep V1, keeps the terminal voltage of blowing engine speed adjusting module, makes V2=VA3, reaches balance.
Set forth the advantage that closed loop control method provided by the invention is compared with traditional open loop control below in conjunction with the example of blowing engine:
In traditional open-loop control method:
The internal resistance of blowing engine is 0.85 Europe, the blowing engine input voltage is 13.5V, when controller output voltage V 1=1.2V to the electronic speed regulation module, the internal resistance of electronic speed regulation module is 2.17 Europe, electric current on the circuit is A1=13.5/ (2.17+0.85)=4.47A, the pressure drop that speed adjusting module produces is 4.47A*2.17=9.7V, and this moment, the blowing engine set end voltage was V2=13.5V-9.7V=3.8V, and be normal condition this moment.
But when outside current consumer power consumption increase blowing engine input voltage fluctuation appears, when dropping to 12.5V, controller or output voltage V 1=1.2V are to the electronic speed regulation module, the internal resistance of electronic speed regulation module is 2.17 Europe, electric current on the circuit is A1=12.5/ (2.17+0.85)=4.13A, the pressure drop that speed adjusting module produces is 4.13A*2.17=8.98V, this moment, the blowing engine set end voltage was V2=12.5V-8.98V=3.51V, the terminal voltage of blowing engine will differ 3.8V-3.51V=0.29V under this moment and the normal condition, and rousing accordingly machine machine rotating speed, discharge quantity of fans etc. also can create a difference.
And in closed loop control method provided by the invention:
The internal resistance of blowing engine is 0.85 Europe, the blowing engine input voltage is 13.5V, when controller output voltage V 1=1.2V to the electronic speed regulation module, the internal resistance of electronic speed regulation module is 2.17 Europe, electric current on the circuit is A1=13.5/ (2.17+0.85)=4.47A, the pressure drop that speed adjusting module produces is 4.47A*2.17=9.7V, this moment, the blowing engine set end voltage was V2=13.5V-9.7V=3.8V, and the value of V2 will be fed to controller, controller reads V2=VA1=3.8V, reach balance, be normal condition this moment.
But when outside current consumer power consumption increase blowing engine input voltage fluctuation appears, when dropping to 12.5V, controller or output voltage V 1=1.2V are to the electronic speed regulation module, the internal resistance of electronic speed regulation module is 2.17 Europe, electric current on the circuit is A1=12.5/ (2.17+0.85)=4.13A, the pressure drop that speed adjusting module produces is 4.13A*2.17=8.98V, this moment, the blowing engine set end voltage was V2=12.5V-8.98V=3.51V, and the value of V2 will be fed to controller, controller reads V2=3.51V＜VA1=3.8V, this Time Controller just can be made calculating at once and be adjusted, improve V1=1.25 to the electronic speed regulation module, this moment, the internal resistance of electronic speed regulation module can become 1.946 Europe under corresponding control voltage, electric current on the circuit is A1=12.5/ (1.946+0.85)=4.47A, the pressure drop that speed adjusting module produces is 4.13A*1.946=8.69V, this moment, the blowing engine set end voltage was V2=12.5V-8.69V=3.8V, and the value of V2 will be fed to controller, controller reads V2=VA1=3.8V, reaches balance.
A kind of air conditioning for automobiles control method provided by the invention is by feedback signal and the standard of applications equipment are being calculated contrast conting, whether the instruction that master chip can be judged output is correct, whether the application apparatus current state reaches requirement, and the concurrent instruction that makes new advances allows external device reach requirement.By the control system of such closed loop, the control result is more accurate.
Claims (1)
1. air conditioning for automobiles control method is characterized in that: be comprised of following 3 steps:
Step 1: the controller master chip sends instruction and passes to applications equipment by circuit;
Step 2: applications equipment receive that the laggard action of instruction is done and with the feedback of status of reality to the controller master chip;
Step 3: the controller master chip calculates the feedback signal received and standard and compares, and control signal is revised, and sends new instruction to applications equipment;
When feedback signal during less than standard, controller can improve control command, makes feedback signal equal standard, reaches balance;
When feedback signal during greater than standard, controller can reduce control command, makes feedback signal equal standard, reaches balance;
When feedback signal equaled standard, controller can keep current control command, keeps balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105018144A CN102922970A (en) | 2012-11-29 | 2012-11-29 | Automobile air-conditioner control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105018144A CN102922970A (en) | 2012-11-29 | 2012-11-29 | Automobile air-conditioner control method |
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| CN102922970A true CN102922970A (en) | 2013-02-13 |
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| CN2012105018144A Pending CN102922970A (en) | 2012-11-29 | 2012-11-29 | Automobile air-conditioner control method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003191741A (en) * | 2001-12-27 | 2003-07-09 | Sanden Corp | Controller |
| CN200955835Y (en) * | 2006-06-23 | 2007-10-03 | 一汽海马汽车有限公司 | Automobile air conditioning control system |
| EP2261068A2 (en) * | 2005-05-24 | 2010-12-15 | Borgwarner Inc. | Self-learning control system and method for controlling fan speed |
| CN102175058A (en) * | 2011-03-03 | 2011-09-07 | 广州瑞凯安电子科技有限公司 | Convective circulation constant temperature and humidity purification air interchange system |
| CN102310740A (en) * | 2011-08-29 | 2012-01-11 | 烟台首钢东星集团有限公司 | Variable-frequency air conditioner control system for electric automobile |
-
2012
- 2012-11-29 CN CN2012105018144A patent/CN102922970A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003191741A (en) * | 2001-12-27 | 2003-07-09 | Sanden Corp | Controller |
| EP2261068A2 (en) * | 2005-05-24 | 2010-12-15 | Borgwarner Inc. | Self-learning control system and method for controlling fan speed |
| CN200955835Y (en) * | 2006-06-23 | 2007-10-03 | 一汽海马汽车有限公司 | Automobile air conditioning control system |
| CN102175058A (en) * | 2011-03-03 | 2011-09-07 | 广州瑞凯安电子科技有限公司 | Convective circulation constant temperature and humidity purification air interchange system |
| CN102310740A (en) * | 2011-08-29 | 2012-01-11 | 烟台首钢东星集团有限公司 | Variable-frequency air conditioner control system for electric automobile |
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Application publication date: 20130213 |