CN201698206U - Multifunctional automobile voltage regulator based on SCM control - Google Patents
Multifunctional automobile voltage regulator based on SCM control Download PDFInfo
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- CN201698206U CN201698206U CN2010202178133U CN201020217813U CN201698206U CN 201698206 U CN201698206 U CN 201698206U CN 2010202178133 U CN2010202178133 U CN 2010202178133U CN 201020217813 U CN201020217813 U CN 201020217813U CN 201698206 U CN201698206 U CN 201698206U
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Abstract
The utility model discloses a multifunctional automobile voltage regulator based on SCM control. The compiled program is recorded in a SCM memory; the SCM monitors the voltage of a storage battery and the output voltage of a generator, compares through an internal comparator and combines a system clock, a counter and a D/A converter all arranged in the SCM; and then the program transmits pulse control signals to control a first crystal triode to be conducted or cut off, thereby the function of voltage regulation is realized; the multifunctional automobile voltage regulator also has the functions of short-circuit protection and fault alarm, informing the driver of the fault in the power supply system of an automobile to prevent accidents from further worsening in time; in addition, according to the performance indexes of the automobile voltage regulator, the program is amended for a little to increase or remove the corresponding auxiliary function or the functional parameters are amended to meet the requirements of all types of clients.
Description
Technical field
The utility model relates to a kind of voltage regulator, is a kind of SCM Based multi-purpose vehicle(MPV) voltage regulator specifically, has effectively improved car electrics or driver's security performance.
Background technology
At present, the domestic automobile voltage regulator can be divided into transistor type voltage regulator, integrated circuit control voltage regulator and buy the voltage regulator for automobile that external formed chip cooperates auxiliary peripheral components to assemble.The one, the transistor type voltage regulator is mainly cooperated devices such as some resistance capacitances to form by several transistors and stabilivolt, only have the voltage-regulation function, and poor, no every short-circuit protection of degree of regulation and alarm function.The 2nd, the voltage regulator function singleness of integrated circuit control, and can't realize load response control, excitation signal feedback, computer signal input end function and pilot lamp flicker alarm function.The 3rd, the voltage regulator of the special-purpose regulator chip of employing, general from Taiwan or the finished chip bought of import, the cost height, peripheral auxiliary circuits must be according to the pin arrangement of special chip, in actual applications, because of being subjected to the restriction of installing space and position, it is inconvenient that it is adjusted, disadvantage is that various parameters are fixing non-adjustable, can't satisfy growing all types of users' demand.
Summary of the invention
In view of above-mentioned present situation, the utility model provides a kind of SCM Based multi-purpose vehicle(MPV) voltage regulator, make it solve existing transistor type regulator and poor, the function singleness of ic-type regulator degree of regulation, and adopt the high and nonadjustable problem of parameter of special chip regulator cost.
The technical solution of the utility model is: the monolithic processor controlled multi-purpose vehicle(MPV) voltage regulator of a kind of usefulness, and as the master control device, 14 pins by single-chip microcomputer U1 connect corresponding external terminal respectively by the single-chip microcomputer of 14 pins; Described ignition switch link IG leads up to that to connect the pin one that is connected to single-chip microcomputer U1 behind the mu balanced circuit that resistance R 17, diode D3, capacitor C 5 form be power supply VCC; Be connected to the pin one 2 of single-chip microcomputer U1 behind the filter circuit of pressure-stabilizing of another road of ignition switch link IG by connection resistance R 8, diode D2, capacitor C 7, resistance R 6 compositions; The pin two of single-chip microcomputer U1 is by connecting the base stage that resistance R 15 is connected to triode T3, the collector of this triode T3 is connected to excitation signal feedback end FR after connecting resistance R 18, the emitter of triode T3 connects the pin one 4 of single-chip microcomputer U1 and connects the pin one 1 of single-chip microcomputer U1 by connection diode D1; The pin 3 of single-chip microcomputer U1 is connected to generator output end B+ by dividing potential drop, the filtering circuit that connects resistance R 5, R2, capacitor C 2 compositions; The pin 7 of single-chip microcomputer U1 is connected to battery tension test side S by dividing potential drop, the filtering circuit that connects resistance R 4, R1, capacitor C 1 composition; The pin 4 of single-chip microcomputer U1 is connected to the IG end by connection diode D5, resistance R 22, R10 one road, and another road connects optional computer signal input end C by connecting resistance R 3 again; The pin 5 of single-chip microcomputer U1 is connected with generator excitation winding F by connecting the resistance R 11 back connection first switch triode T1; The pin 6 of single-chip microcomputer U1 is connected with charging indicator light link L by being connected to second switch triode T2 after the connection resistance R 14; Be connected to power supply VCC behind the bleeder circuit of the pin 8,9 of single-chip microcomputer U1 by connection divider resistance R23, R24 composition; The pin one 0 of single-chip microcomputer U1, the connection resistance R 12 of leading up to is connected to power supply VCC, and another road is connected in generator output end B+ by connecting diode D8, D4; The pin one 3 of single-chip microcomputer U1, the connection resistance R 19 of leading up to is connected to power supply VCC, and another road is connected to charging indicator light link L by connecting diode D9; Generator unit stator input end P is leaded up to and is connected pin one 1 that resistance R 7, diode D1, capacitor C 4 be connected to single-chip microcomputer U1, another road and be the earth terminal E of single-chip microcomputer U1 by the pin one 4 that connects R13 and be connected to single-chip microcomputer U1.
Be provided with bleeder circuit, mu balanced circuit, filtering circuit according to demand separately between 14 pins of single-chip microcomputer and each external terminal.The good control program of burning in the single-chip microcomputer storer realizes that by single-chip microcomputer function and correspondent peripheral circuit voltage-regulation, load response control (LoadResponse Control is called for short LRC), magnetic field (field coil) short-circuit protection, pilot lamp short-circuit protection, low pressure warning, high voltage alarm, the battery tension test side S of voltage regulator the come off alarm, generator unit stator blackout of alarm, generator output end B+ to the stube cable between accumulator that come off alarm (be equivalent to generator driving-belt come off or disconnect alarm) function.The further deterioration of in time informing the driver to avoid automobile power supply system to break down and causing the accident; And can be according to every performance index of voltage regulator for automobile, can increase or delete corresponding subsidiary function or each functional parameter is made amendment the program slightly modified, easily adapt to all types of customer requirements.
According to the technical solution of the utility model, the first related switch triode, second switch triode, in addition, also available field effect transistor substitutes; Wherein S, FR, C end can keep or deletion according to customer demand.
Further, related single-chip microcomputer is the PIC16F616 type single-chip microcomputer of Micro Chip.
Further, computer signal input end C is optional end, directly the pin 4 of single-chip microcomputer U1 is held to the pin one of single-chip microcomputer U1 by resistance R 22, R10 connection IG when no C holds functional requirement.
The good effect that the utlity model has is:
1. abandon the common voltage regulator and adopt the integrated circuit comparer as control module, and adopt single-chip microcomputer as kernel control module, the inner digital signal processing mode that adopts has increased the stability that generator is exported, and more reliable than analog device.
2. parameter setting is flexible, highly versatile.Can only need change subprogram according to user's needs and can set relevant parameter.
3. overturn the vehicle charging pilot lamp and had only the history of light on and off two states, this has unusual meaning, AC generator for vehicle for electric power system, the consequence that high voltage brings is higher than the situation that generating voltage is low or do not generate electricity far away, thereby can effectively avoid electrical apparatus for vehicle use to burn, even the person and the property loss that cause because of the blast of electrical short or accumulator super-charge.
4. have short-circuit protection and various faults alarm function, and the trouble shooting self recovery.Specific as follows: 1. have generator output end B+ overvoltage detecting and alarm function, the charging indicator light flash for prompting is unusual.2. generator output end cable (generator B+ is to the line between accumulator) accident disconnects alarm function, and the charging indicator light flash for prompting is unusual.3. have the unexpected alarm function that disconnects of far-end sampling end S, the charging indicator light flash for prompting is unusual.4. it is unusual that field coil F terminal shortcircuit defencive function, charging indicator light are lighted prompting.5. have the generator phase detecting function, alarm when generator unit stator phase signal open circuit or dynamo belt disconnect, it is unusual that charging indicator light is lighted prompting.6. charging indicator light short-circuit protection function.
Particularly increased the third state on the basis of control to charging indicator light: the flicker alarm by two kinds of show states of traditional on and off.AC generator for vehicle is for the electrical apparatus for vehicle use power supply and is the power-supply unit of charge in batteries.Its running status directly affects the duty and the serviceable life of electrical apparatus for vehicle use and accumulator.Low excessively as generating voltage, will cause accumulator to fill insatiable hunger, as this moment the electrical apparatus for vehicle use power consumption excessive will the battery consumption electric weight, may cause automotive safety to cast anchor.Too high as generating voltage, to cause accumulator super-charge, because the violent waste gas of chemical reaction can't in time discharge, long-duration driving will cause accumulator bulge or blast, even burn electrical apparatus for vehicle use or automotive wire bundle because of the overcurrent heating causes electrical short sparking or spontaneous combustion, the driver is caused economic loss and personal safety.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
The PIC16F616 single-chip microcomputer U1 of the MicroChip that adopts in Fig. 1 is as the master control device.Ignition switch link IG is leaded up to and is connected the pin one that is connected to single-chip microcomputer U1 behind the mu balanced circuit that resistance R 17, diode D3, capacitor C 5 form, and is defined as power supply VCC in circuit, power supply is provided for single-chip microcomputer U1; Be connected to the pin one 2 of single-chip microcomputer U1 behind the filter circuit of pressure-stabilizing of another road of ignition switch link IG by connection resistance R 8, diode D2, capacitor C 7, resistance R 6 compositions; The pin two of single-chip microcomputer U1 is by connecting the base stage that resistance R 15 is connected to triode T3, the collector of this triode T3 is connected to excitation signal feedback end FR after connecting resistance R 18, with open-collector way of output output excitation signal feedback end FR waveform, the emitter of triode T3 connects the pin one 4 of single-chip microcomputer U1 and connects the pin one 1 of single-chip microcomputer U1 by connection diode D1; The pin 3 of single-chip microcomputer U1 is connected to generator output end B+ by dividing potential drop, the filtering circuit that connects resistance R 5, R2, capacitor C 2 compositions, by B+ end detecting generator output end voltage; The pin 7 of single-chip microcomputer U1 is connected to battery tension test side S by dividing potential drop, the filtering circuit that connects resistance R 4, R1, capacitor C 1 composition, is used to detect battery tension; The pin 4 of single-chip microcomputer U1, be connected to the IG end by connection diode D5, resistance R 22, R10 one road, realize the single-chip microcomputer reset function, another road connects computer signal input end C by connecting resistance R 3 again, by the high-low level signal controlling regulation voltage of response C end; Because computer signal input end C is optional function, get final product so can be when no C end functional requirement directly the pin 4 of single-chip microcomputer U1 be held to the pin one of single-chip microcomputer U1 by resistance R 22, R10 connection IG.The pin 5 of single-chip microcomputer U1 is connected with generator excitation winding F by connecting the resistance R 11 back connection first switch triode T1, realizes that the control function of exciting current is the voltage-regulation performance; The pin 6 of single-chip microcomputer U1 is connected the running status of expression generator with charging indicator light link L by being connected to second switch triode T2 after the connection resistance R 14; Be connected to power supply VCC behind the bleeder circuit of the pin 8,9 of single-chip microcomputer U1 by connection divider resistance R23, R24 composition; The pin one 0 of single-chip microcomputer U1, the connection resistance R 12 of leading up to is connected to power supply VCC, and another road is connected in generator output end B+ by connecting diode D8, D4; The pin one 3 of single-chip microcomputer U1, the connection resistance R 19 of leading up to is connected to power supply VCC, another road is connected to charging indicator light link L by connecting diode D9, adjust magnitude of voltage that the pin 8,9 of single-chip microcomputer U1 collects as reference voltage by adjusting divider resistance, and determine with the pin one 0 of single-chip microcomputer U1 and 13 voltage ratios whether the generator excitation winding is connected normally with charging indicator light, and, realize the short-circuit protection function of generator excitation winding and charging indicator light by the pin 5 of programmed control single-chip microcomputer U1 and 6 output; Generator unit stator input end P is leaded up to and is connected pin one 1 that resistance R 7, diode D1, capacitor C 4 be connected to single-chip microcomputer U1, another road and be the earth terminal E of single-chip microcomputer U1 by the pin one 4 that connects R13 and be connected to single-chip microcomputer U1.Present embodiment, the pin one 1 by single-chip microcomputer U1 connects a phase stator winding of generator, determines generator speed by the frequency signal of gathering stator, again in conjunction with the exciting current of programmed control voltage regulator and the state of pilot lamp.The voltage regulator of present embodiment is by being provided with bleeder circuit, mu balanced circuit, filtering circuit according to demand separately between 14 pins of single-chip microcomputer U1 and each external terminal; The good control program of burning in the single-chip microcomputer storer realizes that by single-chip microcomputer function and correspondent peripheral circuit voltage-regulation, load response control (Load Response Control is called for short LRC), magnetic field (field coil) short-circuit protection, pilot lamp short-circuit protection, low pressure warning, high voltage alarm, the battery tension test side S of voltage regulator the come off alarm, generator unit stator blackout of alarm, generator output end B+ to the stube cable between accumulator that come off alarm (be equivalent to generator driving-belt come off or disconnect alarm) function.
In the present embodiment, shown in circuit be to adopt first and second switch triodes, in addition, also optional with alternative first and second switch triodes of field effect transistor, the cut-in voltage VGS (th) of used field effect transistor must be less than the pin 5 of single-chip microcomputer U1 and 6 output voltage, function that the control program of single-chip microcomputer storer can be realized as required and the establishment of the parameter of every function repeat no more.
In the present embodiment, have 9 function terminals, comprise battery tension test side S, ignition switch link IG, charging indicator light link L, excitation signal feedback end FR, computer signal input end C, generator output end B+, generator unit stator input end P, generator excitation winding F and earth terminal E.
Principle of work of the present utility model: be set as follows parameter before the narration: U1-single-chip microcomputer, the voltage breakdown of VCC-D3; The output voltage values of VOUT-generator; The voltage breakdown of VREF-D2; Ignition switch IG end is the regulator power control terminal, and when IG opens, voltage is during greater than VCC, and single-chip microcomputer U1 starts working.
When the frequency signal that collects when the pin one 1 of single-chip microcomputer U1 was turned off the light frequency configuration point less than pilot lamp, single-chip microcomputer pin6 output high level made the T2 conducting, and charging indicator light L lights; The frequency signal that collects when the pin one 1 of single-chip microcomputer U1 reaches the pilot lamp frequency configuration of turning off the light to be put when above, pin 6 output low levels of single-chip microcomputer U1 make T2 by, charging indicator light L extinguishes the expression normal power generation.
The frequency signal that collects when the pin one 1 of single-chip microcomputer U1 is during less than excitation incision frequency configuration point, and the PWM that the pin 5 of single-chip microcomputer U1 is exported fixed duty cycles controls the size of pre-exciting curent to T1, and the PWM dutycycle can be according to the program setting adjustment; The frequency signal that collects when the pin one 1 of single-chip microcomputer U1 reaches excitation incision frequency configuration and puts when above, programmed control PWM withdraws from pre-excitatory process, in the voltage adjustment process, ADC gathers vref signal and produces sawtooth wave in the single-chip microcomputer, the sawtooth wave frequency is the PWM frequency, can set arbitrarily according to customer requirement by program, and compare with pin 3 voltages of single-chip microcomputer U1, pin 5 output low levels of single-chip microcomputer U1 are closed first switch triode and are begun up to the next clock period when both are equal, promptly export the PWM waveforms, to reach the purpose of regulating and controlling voltage with the pin 5 of programmed control single-chip microcomputer U1.The regulation voltage set-point can be by the partial pressure value decision of the pin 3,7 of program or single-chip microcomputer U1.
During computer signal input end C input high level, the pin 4 of single-chip microcomputer U1 collects noble potential, and the pin 5 of programmed control single-chip microcomputer U1 is normally exported; When C end input low level, the pin 4 of single-chip microcomputer U1 is an electronegative potential, and the pin 5 of programmed control this moment single-chip microcomputer U1 is output as the part of normal value, and this ratio can be set arbitrarily according to the C end regulation voltage level of customer requirement by program.The pin two of single-chip microcomputer U1 is formed open-collector output terminal FR by R15, R18 and T3, by program pin 5 homophases of the pin two of single-chip microcomputer U1 and single-chip microcomputer U1 or anti-phase can be set.
When pin one 0 voltage of single-chip microcomputer U1 is higher than pin 8 voltages of single-chip microcomputer U1, show that the F end is noble potential, pin 5 output low levels of programmed control single-chip microcomputer U1 are closed exciting current, and the pin 6 output high level of single-chip microcomputer U1 are lighted charging indicator light simultaneously.When pin one 3 voltages of single-chip microcomputer U1 are higher than pin 8 voltages of single-chip microcomputer U1, show that the L end is noble potential, pin 6 output low levels of programmed control single-chip microcomputer U1 are closed the second switch power tube.Short-circuit protection is an additional function, can increase or deletion according to customer requirement.
S comes off when the battery tension test side, generator output end B+ comes off to the stube cable between accumulator, when generator output end B+ electric voltage exception raises, realizes alarm function by the detecting B+ end and the voltage of S end.When | V (B+)-VS|＞2V, the square wave of programmed control single-chip microcomputer pin6 output fixed frequency, the conducting of just controlling T2 with control T2 grid potential with cut, make charging indicator light be in blink states.Catastrophic failure appears in prompting driver automobile power supply system, must on-call maintenance.
Claims (4)
1. one kind based on monolithic processor controlled multi-purpose vehicle(MPV) voltage regulator, it is characterized in that: as the master control device, 14 pins by single-chip microcomputer U1 connect corresponding external terminal respectively by the single-chip microcomputer of 14 pins; Described ignition switch link IG leads up to that to connect the pin (1) that is connected to single-chip microcomputer U1 behind the mu balanced circuit that resistance R 17, diode D3, capacitor C 5 form be power supply VCC; Be connected to the pin (12) of single-chip microcomputer U1 behind the filter circuit of pressure-stabilizing of another road of ignition switch link IG by connection resistance R 8, diode D2, capacitor C 7, resistance R 6 compositions; The pin of single-chip microcomputer U1 (2) is by connecting the base stage that resistance R 15 is connected to triode T3, the collector of this triode T3 is connected to excitation signal feedback end FR after connecting resistance R 18, the emitter of triode T3 connects the pin (14) of single-chip microcomputer U1 and connects the pin (11) of single-chip microcomputer U1 by connection diode D1; The pin of single-chip microcomputer U1 (3) is connected to generator output end B+ by dividing potential drop, the filtering circuit that connects resistance R 5, R2, capacitor C 2 compositions; The pin of single-chip microcomputer U1 (7) is connected to battery tension test side S by dividing potential drop, the filtering circuit that connects resistance R 4, R1, capacitor C 1 composition; The pin of single-chip microcomputer U1 (4) is connected to the IG end by connection diode D5, resistance R 22, R10 one road, and another road connects optional computer signal input end C by connecting resistance R 3 again; The pin of single-chip microcomputer U1 (5) is connected with generator excitation winding F by connecting the resistance R 11 back connection first switch triode T1; The pin of single-chip microcomputer U1 (6) is connected with charging indicator light link L by being connected to second switch triode T2 after the connection resistance R 14; Be connected to power supply VCC behind the pin of single-chip microcomputer U1 (8), (9) bleeder circuit by connection divider resistance R23, R24 composition; The pin of single-chip microcomputer U1 (10), the connection resistance R 12 of leading up to is connected to power supply VCC, and another road is connected in generator output end B+ by connecting diode D8, D4; The pin of single-chip microcomputer U1 (13), the connection resistance R 19 of leading up to is connected to power supply VCC, and another road is connected to charging indicator light link L by connecting diode D9; Generator unit stator input end P is leaded up to and is connected pin (11) that resistance R 7, diode D1, capacitor C 4 be connected to single-chip microcomputer U1, another road and be the earth terminal E of single-chip microcomputer U1 by the pin (14) that connects R13 and be connected to single-chip microcomputer U1.
2. according to claim 1 based on monolithic processor controlled multi-purpose vehicle(MPV) voltage regulator, it is characterized in that: first switch, second switch are triode T1, triode T2 or the field effect transistor of selecting for use.
3. according to claim 1 based on monolithic processor controlled multi-purpose vehicle(MPV) voltage regulator, it is characterized in that: described single-chip microcomputer is the PIC16F616 type single-chip microcomputer of Micro Chip.
4. according to claim 1 based on monolithic processor controlled multi-purpose vehicle(MPV) voltage regulator, it is characterized in that: computer signal input end C is optional end, directly the pin (4) of single-chip microcomputer U1 is held the pin (1) to single-chip microcomputer U1 by resistance R 22, R10 connection IG when no C holds functional requirement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010202178133U CN201698206U (en) | 2010-06-04 | 2010-06-04 | Multifunctional automobile voltage regulator based on SCM control |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010202178133U CN201698206U (en) | 2010-06-04 | 2010-06-04 | Multifunctional automobile voltage regulator based on SCM control |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819227A (en) * | 2012-09-17 | 2012-12-12 | 贵州大学 | Automobile voltage regulating circuit |
| CN103777142A (en) * | 2012-10-18 | 2014-05-07 | 奕微科半导体科技股份有限公司 | Signal detection circuit for automobile generator |
| CN104821768A (en) * | 2015-04-23 | 2015-08-05 | 江苏云意电气股份有限公司 | Single-chip microcomputer C-terminal voltage regulator |
-
2010
- 2010-06-04 CN CN2010202178133U patent/CN201698206U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819227A (en) * | 2012-09-17 | 2012-12-12 | 贵州大学 | Automobile voltage regulating circuit |
| CN102819227B (en) * | 2012-09-17 | 2014-12-10 | 贵州大学 | Automobile voltage regulating circuit |
| CN103777142A (en) * | 2012-10-18 | 2014-05-07 | 奕微科半导体科技股份有限公司 | Signal detection circuit for automobile generator |
| CN103777142B (en) * | 2012-10-18 | 2016-09-28 | 奕微科半导体科技股份有限公司 | Signal detection circuit for automobile generator |
| CN104821768A (en) * | 2015-04-23 | 2015-08-05 | 江苏云意电气股份有限公司 | Single-chip microcomputer C-terminal voltage regulator |
| CN104821768B (en) * | 2015-04-23 | 2018-10-02 | 江苏云意电气股份有限公司 | A kind of microcontroller C terminal voltage regulator |
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Granted publication date: 20110105 Termination date: 20110604 |