CN201836357U - Automatic shift control device based on C51 single chip microcomputer - Google Patents
Automatic shift control device based on C51 single chip microcomputer Download PDFInfo
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- CN201836357U CN201836357U CN2010205332496U CN201020533249U CN201836357U CN 201836357 U CN201836357 U CN 201836357U CN 2010205332496 U CN2010205332496 U CN 2010205332496U CN 201020533249 U CN201020533249 U CN 201020533249U CN 201836357 U CN201836357 U CN 201836357U
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- state relay
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Abstract
The utility model provides an automatic shift control device based on a C51 single chip microcomputer, which comprises a detection part, a data processing part and an output part, wherein the detection part adopts speed measurement sensors, the speed measurement sensors are connected with a single chip microcomputer control circuit through a photoelectrically coupled isolation circuit, the output of the single chip microcomputer control circuit is connected with a photoelectric coupler isolation driving circuit and a solid state relay isolation protection circuit in sequence, and the solid state relay isolation protection circuit is connected with an electromagnetic clutch. The output of the single chip microcomputer control circuit is also connected with a decoding driving circuit and a rotation speed display circuit. The speed measurement sensors include an engine speed measurement sensor and a load speed measurement sensor. The photoelectric coupler isolation driving circuit comprises an optically coupled isolator V1, a triode V2, a resistor R1 and a resistor R2. The input terminal of the optically coupled isolator V1 is connected with the output terminal of the single chip microcomputer, and the output terminal of the optically coupled isolator V1 is connected with the base circuit of the triode V2.
Description
Technical field
The utility model relates to a kind of self shifter control gear based on the C51 single-chip microcomputer, belong to gearbox Electrical Control Technology field, be specifically related to the self shifter control of two retaining speed-changing gear boxs, be particularly useful for the rotating speed coupling control of vehicular high-power load and two retaining speed-changing gear boxs.
Background technique
In the middle of novel electrical-control and electric-actuating mechanism for vehicles automatic transmission case, replacing conventional mechanical type or hydraulic type clutch with magnetic clutch is the optimal selection and the development trend of current vehicle gear box as actuator.Yet, in most large vehicle gearboxes, because the electromagnetic clutch control circuit reliability is low, automation control mode degree is not high, stationarity is relatively poor when causing the magnetic clutch braking to separate, and has reduced the working life of magnetic clutch, the fluctuation that has increased engine speed.
Summary of the invention
The purpose of this utility model is exactly that a kind of self shifter control gear based on the C51 single-chip microcomputer will be provided, make that control circuit is reliable, shift quality is high, can drive the magnetic clutch transition status automatically when needing the change state, and can real-time display controlled object current state.
The technical solution of the utility model: the self shifter control gear based on the C51 single-chip microcomputer of the present utility model comprises test section, data processing section and output; tachogenerator is adopted in its test section; tachogenerator is connected with single chip machine controlling circuit by photoelectricity coupling buffer circuit; the output of single chip machine controlling circuit is connected with photoelectric coupler isolation drive circuit, solid state relay isolation protective circuit successively, and the solid state relay isolation protective circuit is connected with magnetic clutch.
The output of described single chip machine controlling circuit also is connected with the nixie tube display circuit with decoder driver circuit.
Described tachogenerator comprises motor tachogenerator and load tachogenerator.
Described photoelectric coupler isolation drive circuit comprises optical coupling isolator V1, triode V2 and resistance R 1, R2, and the input end of optical coupling isolator V1 is connected with the output terminal of single-chip microcomputer, and the output terminal of optical coupling isolator V1 is connected with the base circuit of triode V2.
The input negative pole of described solid state relay K1 is connected with the collector electrode of the triode V2 of photoelectric coupler isolation drive circuit, and the positive output end of solid state relay K1 is connected to the magnetic clutch coil; The positive output end of solid state relay K1 is connected to+the 24V power supply by diode V3; The negative output terminal of solid state relay K1 is connected to+the 24V power supply by diode V4.
Advantage of the present utility model mainly shows the following aspects: the input stage of drive circuit adopts photo coupler TLP521-1, realize the pulse signal one-way transmission, realized electrical isolation fully with driving stage, output signal does not have influence to input end, antijamming capability is strong, and working stability is contactless, long service life, the efficiency of transmission height.The output stage of drive circuit has then adopted solid state relay (SSR), realized the electrical isolation of drive circuit and load, load circuit does not exist because the electromagnetic interference that contact chatter, rebound and electric arc are cremated and caused, and switching speed is fast, has guaranteed being swift in motion of magnetic clutch, reliably.SCM program adopts the C language that transplantability is good, popularity is high to write, and uses ripe.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present utility model.
Fig. 2 is photoelectric coupler isolation drive circuit, solid state relay isolation protective circuit figure.
Embodiment
The utility model is made up of tachogenerator, optical coupling isolation circuit, C51 single chip machine controlling circuit, photoelectric coupler isolation drive circuit, solid state relay isolation protective circuit, decoder driver circuit and nixie tube display circuit etc.The C51 single chip machine controlling circuit is the core.When software designed, it was the counter mode that T0, T1 are set, and respectively motor, load speed signal is counted, and the T0 initial value is set makes its counting reach predetermined value to produce and to overflow interruption, and T0 is set interrupts interrupting for preferential.When T0 count down to predetermined value, timer T0 interrupted and external interrupt arrives simultaneously, because T0 interrupts being priority, program response T0 is earlier interrupted, and interrupt routine changes single-chip microcomputer output terminal P1.0 state can carry out self shifter.
Below in conjunction with accompanying drawing and particular hardware circuit the utility model is described in further detail:
As Fig. 1: provided self shifter control gear among the figure based on the C51 single-chip microcomputer; tachogenerator is adopted in the test section; tachogenerator is connected with single chip machine controlling circuit by photoelectricity coupling buffer circuit; the output of single chip machine controlling circuit is connected with photoelectric coupler isolation drive circuit, solid state relay isolation protective circuit successively, and the solid state relay isolation protective circuit is connected with magnetic clutch.
Further, the output of single chip machine controlling circuit also is connected with the rotating speed display circuit with decoder driver circuit.
Further, described tachogenerator comprises motor tachogenerator 1 and load tachogenerator 2.
The inner tachogenerator 1 of gearbox, tachogenerator 2 measured tach signals flow to the C51 single chip machine controlling circuit through optical coupling isolation circuit and handle; after single-chip microcomputer counting and judgement reach the self shifter condition, then export control signal and go control executing mechanism by optical couple isolation drive circuit and solid state relay isolation protective circuit.The C51 single chip machine controlling circuit flows to tach signal decoder driver circuit and nixie tube display circuit simultaneously to carry out rotating speed and shows in real time.
The utility model reset switch S1 can be restarted single-chip microcomputer, and button reset switch S2 can switch demonstration motor or load speed at any time.When the rotating speed of monitoring when single-chip microcomputer reaches self shifter and requires; Single-chip Controlling end output control signal reaches safe and reliable control magnetic clutch and carries out self-shifting purpose behind photoelectric coupler isolation drive circuit and solid state relay isolation protective circuit.
Fig. 2 is photoelectric coupler isolation drive circuit, solid state relay isolation protective circuit figure:
Single-chip microcomputer output terminal P1.0 links to each other with the input end of optical coupling isolator V1, and the output terminal of optical coupling isolator V1 is connected with the base stage of triode V2.Optical coupling isolator V1, triode V2 and resistance R 1, R2 form optical couple isolation drive circuit.The input negative pole of solid state relay K1 is connected with the collector electrode of triode, and the positive output end of solid state relay K1 is connected to the magnetic clutch coil; The positive output end of solid state relay K1 is connected to+24V by diode V3; The negative output terminal of solid state relay K1 is connected to+24V by diode V4.
When triode V2 saturation conduction, solid state relay K1 state output terminal then changes, and output terminal K1_4, K1_5 that closure communicates become off state.The negative pole of the positive pole of solid state relay K1_4, diode V3 and controlled device magnetic clutch links together, if solid state relay K1_4 and negative pole disconnect, then controlled device magnetic clutch coil can't constitute the loop and causes its action, the back-emf of magnetic clutch coil is suppressed by diode V3, V4, avoids burning the magnetic clutch coil.
Claims (5)
1. self shifter control gear based on the C51 single-chip microcomputer; comprise test section, data processing section and output; it is characterized in that: tachogenerator is adopted in the test section; tachogenerator is connected with single chip machine controlling circuit by photoelectricity coupling buffer circuit; the output of single chip machine controlling circuit is connected with photoelectric coupler isolation drive circuit, solid state relay isolation protective circuit successively, and the solid state relay isolation protective circuit is connected with magnetic clutch.
2. the self shifter control gear based on the C51 single-chip microcomputer according to claim 1 is characterized in that: the output of single chip machine controlling circuit also is connected with the nixie tube display circuit with decoder driver circuit.
3. the self shifter control gear based on the C51 single-chip microcomputer according to claim 1 is characterized in that: tachogenerator comprises motor tachogenerator (1) and load tachogenerator (2).
4. the self shifter control gear based on the C51 single-chip microcomputer according to claim 1 and 2, it is characterized in that: the photoelectric coupler isolation drive circuit comprises optical coupling isolator V1, triode V2 and resistance R 1, resistance R 2, the input end of optical coupling isolator V1 is connected with the output terminal of single-chip microcomputer, and the output terminal of optical coupling isolator V1 is connected with the base circuit of triode V2.
5. the self shifter control gear based on the C51 single-chip microcomputer according to claim 1 and 2, it is characterized in that: the input negative pole of solid state relay K1 is connected with the collector electrode of the triode V2 of photoelectric coupler isolation drive circuit, and the positive output end of solid state relay K1 is connected to the magnetic clutch coil; The positive output end of solid state relay K1 is connected to+the 24V power supply by diode V3; The negative output terminal of solid state relay K1 is connected to+the 24V power supply by diode V4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205332496U CN201836357U (en) | 2010-09-17 | 2010-09-17 | Automatic shift control device based on C51 single chip microcomputer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205332496U CN201836357U (en) | 2010-09-17 | 2010-09-17 | Automatic shift control device based on C51 single chip microcomputer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201836357U true CN201836357U (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205332496U Expired - Lifetime CN201836357U (en) | 2010-09-17 | 2010-09-17 | Automatic shift control device based on C51 single chip microcomputer |
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| Country | Link |
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| CN (1) | CN201836357U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392884A (en) * | 2011-08-20 | 2012-03-28 | 山东理工大学 | Variable-torque speed control driving system for electric automobiles |
| CN107882930A (en) * | 2017-11-06 | 2018-04-06 | 浙江中谷车桥有限公司 | No-clutch electric car electromechanical integration automatic gear-box |
-
2010
- 2010-09-17 CN CN2010205332496U patent/CN201836357U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392884A (en) * | 2011-08-20 | 2012-03-28 | 山东理工大学 | Variable-torque speed control driving system for electric automobiles |
| CN107882930A (en) * | 2017-11-06 | 2018-04-06 | 浙江中谷车桥有限公司 | No-clutch electric car electromechanical integration automatic gear-box |
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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: 20110518 |