CN201035354Y - Automobile air conditioner control circuit based on single-chip - Google Patents
Automobile air conditioner control circuit based on single-chip Download PDFInfo
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- CN201035354Y CN201035354Y CNU2007200690981U CN200720069098U CN201035354Y CN 201035354 Y CN201035354 Y CN 201035354Y CN U2007200690981 U CNU2007200690981 U CN U2007200690981U CN 200720069098 U CN200720069098 U CN 200720069098U CN 201035354 Y CN201035354 Y CN 201035354Y
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Abstract
The utility model relates to a control circuit of the vehicle air conditioning basing on the singlechip. The utility model is characterized in that the control circuit of the vehicle air conditioning comprises a singlechip and a power chip which is connected with the singlechip, wherein, the input end of the singlechip is provided with the input end of a temperature knob, the input end of a cyclic module and an A/C button and the input end of an outer blower signal, a first output end of the singlechip is connected with the input end of the motor drive chip; a second output end of the singlechip is connected with the base of a first triode; a collector of the first triode is connected with the control switch of the motor drive chip; and a third output end of the singlechip is connected with the drive chip of a light-emitting diode; a fourth output end of the singlechip is connected with the base of a second triode, and the collector of the second triode is connected with the outer compressor. The utility model adopts the eight bit singlechip as a core, and adopts the external information and the switch information of the air conditioning to learn the information such as mode and temperature which the customer requires, and controls the outer blower and the motor to satisfy the requirements of comfortableness and security.
Description
Technical field:
The utility model relates to the air conditioning for automobiles control circuit, specifically a kind of SCM Based air conditioning for automobiles control circuit.
Background technology:
Traditional air conditioning for automobiles control circuit does not adopt the single-chip microcomputer design, main all kinds of triggers and the fixed gauge tap with lock of relying on carried out the control of air conditioning for automobiles duty, because the spike and the various instability of air conditioning for automobiles input signal, cause the maloperation of air conditioning for automobiles easily, thereby bring discomfort to the passenger.Simultaneously, output signal does not adopt the chip controls motor driven, at current state, causes the damage of air-conditioning output circuit easily.
Summary of the invention:
The purpose of this utility model is to provide a kind of SCM Based air conditioning for automobiles control circuit.
To achieve these goals, the technical solution of the utility model is as follows: SCM Based air conditioning for automobiles control circuit, it is characterized in that it comprises single-chip microcomputer, the power supply chip that is connected with this single-chip microcomputer, the input end of this single-chip microcomputer is provided with temperature knob input end, circulation pattern and A/C button input end and outside blower fan signal input part, first output terminal of this single-chip microcomputer is connected with the input end of motor driven chip, second output terminal of this single-chip microcomputer is connected with the base stage of first triode, the collector of this first triode is connected with the gauge tap of motor driven chip, the 3rd output terminal of this single-chip microcomputer is connected with the light-emitting diodes pipe driving chip, the 4th output terminal of this single-chip microcomputer is connected with the base stage of second triode, and the collector of this second triode is connected with outside condenser.
The utility model adopts 8 single-chip microcomputers as core, gather the external information of air conditioning for automobiles, such as external temperature, circulation pattern, blower fan position signals, after 8 single-chip microcomputers processing, output drives outside blower motor, temperature motor and mode motor etc., while 8 switching signals that single-chip microcomputer is also gathered air conditioning for automobiles, information such as pattern that the understanding passenger needs at this moment and temperature, thereby outside blower fan, motor etc. are controlled, satisfied the requirement of passenger comfort, security.
Description of drawings:
Fig. 1 is the circuit diagram of the utility model one embodiment
Embodiment:
Below in conjunction with drawings and Examples the utility model is elaborated.
There is shown a kind of air conditioning for automobiles control circuit based on 8 single-chip microcomputers, it is characterized in that it comprises single-chip microcomputer 1, the power supply chip 2 that is connected with this single-chip microcomputer 1, the input end of this single-chip microcomputer 1 is provided with temperature knob input end 3, circulation pattern and A/C button input end 5 and outside blower fan signal input part 7, first output terminal of this single-chip microcomputer is connected with the input end of motor driven chip 6, second output terminal of this single-chip microcomputer is connected with the base stage of first triode 8, the collector of this first triode 8 is connected with the gauge tap (not shown) of external motors chip for driving, the 3rd output terminal of this single-chip microcomputer 1 is connected with light-emitting diodes pipe driving chip 10, the 4th output terminal of this single-chip microcomputer is connected with the base stage of second triode 11, and the collector of this second triode 11 is connected with the outside condenser (not shown).
The utility model adopts 8 single-chip microcomputers to gather the signal that air-conditioning needs, storage, computing, processing, comparison through single-chip microcomputer, thereby export all kinds of control signals, control outside blower motor, temperature motor and mode motor etc., the air-conditioning work state that the passenger is present is told in the demonstration of Control of Automobile air-conditioning pilot lamp, backlight simultaneously.
As shown in Figure 1, the present invention comprises 8 single-chip microcomputers 1 as core, is made up of power supply chip 2, motor driven chip 6, light-emitting diodes pipe driving chip 10 and some light emitting diodes and switch etc.8 single-chip microcomputers 1 can received signal, processing signals and output signal, controls various external circuits.Motor driven chip 6 drives the external temperature motor, and light-emitting diodes pipe driving chip 10 drives various light emitting diode lamps, and power supply chip 2 provides required 5V power supply.
As Fig. 2 detailed circuit diagram of the present invention as seen: the present invention adopts 8 MC9S08AW16 single-chip microcomputers 1 of freescale company as core, and it comprises 16K Flash, the A/D conversion of 1K RAM and 8 passages.Program and information all are stored among the Flash, thereby do not need external storage chip.
Control circuit power supply of the present invention adopts the BA05 power supply chip 2 of ROHM company, and it is 8 needed 5V power supplys of single-chip microcomputer with 9～16V power source conversion that the igniting of instrument battery provides, and supply with the air-conditioner controller switch on draw power supply.
The control principle of the temperature motor of automotive air-conditioning controller is: a common I/O mouth of 8 single-chip microcomputers 1 is the A/D signal that temperature knob input end 3 is gathered passenger's rotary temperature knob, these signals enter the A/D mouth of 8 single-chip microcomputers, single-chip microcomputer carries out the A/D conversion, calculates and preserves, at common I/O mouth output two paths of signals, through RC filtering, control motor driven chip TLE4207, motor driven chip 6 is according to the signal that receives, carry out the amplification of electric current, output signal is directly controlled the temperature motor of air-conditioner controller outside.
The interior outer circulation of automotive air-conditioning controller and the control principle of pattern motor are: a common I/O mouth of 8 single-chip microcomputers is that circulation pattern and A/C button input end 5 collect the negative edge signal (becoming the ground level signal by original 5V) that the passenger presses gauge tap, pass through software filtering, eliminate the burr signal in maloperation and the button, the common I/O of 8 single-chip microcomputers of discriminatory analysis control subsequently sends signal, control the break-make of first triode 8, thereby reach control air-conditioner controller motor driven chip switching purposes.
The principle of the interior outer circulation of automotive air-conditioning controller and pattern indication is: a common I/O mouth of 8 single-chip microcomputers is that circulation pattern and A/C button input end 5 collect the negative edge signal (becoming the ground level signal by original 5V) that the passenger presses gauge tap, pass through software filtering, eliminate the burr signal in maloperation and the button, the common I/O of 8 single-chip microcomputers of discriminatory analysis control subsequently sends signal, driven for emitting lights diode chip for driving 10, thus corresponding light emitting diode is lighted.
The A/C control principle of automotive air-conditioning controller is: a common I/O mouth of 8 single-chip microcomputers is the signal that circulation pattern and A/C button input end 5 are gathered the A/C button, discern and judge, in another common I/O output control signal, drive second triode 11, thereby give air-conditioner controller an outside A/C signal, the control outside condenser of obtaining.
The control principle of outside blower fan indicator signal is: a common I/O mouth of 8 single-chip microcomputers is to draw on the resistance of outside blower fan signal through the internal point ignition source of outside blower fan signal input part 7 inputs, it carries out dividing potential drop with pull down resistor subsequently, partial pressure value enters the common I/O mouth of 8 single-chip microcomputers, single-chip microcomputer obtains this signal, after storing Treatment Analysis, recognize the state of outside blower fan.
Claims (1)
1. SCM Based air conditioning for automobiles control circuit, it is characterized in that it comprises single-chip microcomputer, the power supply chip that is connected with this single-chip microcomputer, the input end of this single-chip microcomputer is provided with temperature knob input end, circulation pattern and A/C button input end and outside blower fan signal input part, first output terminal of this single-chip microcomputer is connected with the input end of motor driven chip, second output terminal of this single-chip microcomputer is connected with the base stage of first triode, the collector of this first triode is connected with the gauge tap of motor driven chip, the 3rd output terminal of this single-chip microcomputer is connected with the light-emitting diodes pipe driving chip, the 4th output terminal of this single-chip microcomputer is connected with the base stage of second triode, and the collector of this second triode is connected with outside condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200690981U CN201035354Y (en) | 2007-04-19 | 2007-04-19 | Automobile air conditioner control circuit based on single-chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200690981U CN201035354Y (en) | 2007-04-19 | 2007-04-19 | Automobile air conditioner control circuit based on single-chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201035354Y true CN201035354Y (en) | 2008-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200690981U Expired - Lifetime CN201035354Y (en) | 2007-04-19 | 2007-04-19 | Automobile air conditioner control circuit based on single-chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201035354Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696817B (en) * | 2009-10-22 | 2011-06-08 | 浙江大明电子有限公司 | Intelligent controller of automobile air conditioner |
| CN102607135A (en) * | 2012-03-26 | 2012-07-25 | 柳州职业技术学院 | Automatic air conditioner controller of minicar |
| CN107065680A (en) * | 2017-05-16 | 2017-08-18 | 苏州伟仕多自动化设备有限公司 | A kind of horizontal tailgate power control system of automobile |
-
2007
- 2007-04-19 CN CNU2007200690981U patent/CN201035354Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696817B (en) * | 2009-10-22 | 2011-06-08 | 浙江大明电子有限公司 | Intelligent controller of automobile air conditioner |
| CN102607135A (en) * | 2012-03-26 | 2012-07-25 | 柳州职业技术学院 | Automatic air conditioner controller of minicar |
| CN107065680A (en) * | 2017-05-16 | 2017-08-18 | 苏州伟仕多自动化设备有限公司 | A kind of horizontal tailgate power control system of automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080312 |