CN104052355B - A kind of automobile intelligent generator management system - Google Patents
A kind of automobile intelligent generator management system Download PDFInfo
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- CN104052355B CN104052355B CN201410291236.5A CN201410291236A CN104052355B CN 104052355 B CN104052355 B CN 104052355B CN 201410291236 A CN201410291236 A CN 201410291236A CN 104052355 B CN104052355 B CN 104052355B
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Abstract
The invention discloses a kind of automobile intelligent generator management system, including voltage regulator and ECU, described voltage regulator includes MCU, power module, voltage sampling circuit, excitation control circuit, indicating lamp control circuit, rotating speed sample circuit and ECU communication control circuit；MCU draws B+ end by voltage sampling circuit and is connected with the generating outfan of electromotor；MCU draws P end by rotating speed sample circuit and is connected with the phase output of electromotor；MCU draws excitation con-trol F end by excitation control circuit and is connected with dynamo field coil one end；MCU draws L end by indicating lamp control circuit, and L end is attempted by battery positive voltage with B+ end after being sequentially connected in series charging indicator light and ignition switch；MCU is bi-directionally connected with ECU by ECU communication control circuit.This management system is capable of ECU and dynamically controls electromotor output according to real time load situation, it is possible to increase alternating current generator stability under engine idle conditions, thus improving Fuel consumption.
Description
Technical field
The present invention relates to a kind of automobile generating machine management system, particularly to a kind of automobile intelligent generator management system.
Background technology
In AC generator for vehicle system, voltage regulator is by the control to exciter current of generator, it is achieved being automatically adjusted generator output voltage.Existing voltage regulator has single function and multi-functional two kinds of actuators.The conventional terminal of single function voltage regulator has: B+ end connects the voltage output end of electromotor, F end connects magnetizing coil, E end earth terminal, S end is connected to the positive pole of storage battery, for detecting the voltage of storage battery, C end alleviates engine load, L end storage battery display lamp for the output reducing electromotor, IG end is connected to the ignition switch on automobile, and FR end is connected to the computer control on car.This single function voltage regulator does not have rotating speed sampling end, it is impossible to enough rotating speeds to automobile current generator are acquired, thus voltage is regulated in real time.
Multifunctional electric actuator, except the terminal of single functional regulator, also has P end rotating speed sampling end, it is possible to the state of detecting electromotor phase signals, it is also possible to realize the functions such as short-circuit protection, soft start, load response control (LRC).
Disclosed in Chinese utility model patent CN2909694, a kind of car generator voltage controller with microprocessor controller is exactly a kind of multifunctional electric actuator.This car generator voltage controller includes microprocessor, sensor, sample circuit, ECU Instantaneous Control interface, voltage source of stable pressure and a power output unit, wherein sensor, sample circuit, ECU Instantaneous Control interface are connected with the input port of microprocessor respectively, and voltage source of stable pressure is connected with the power port of this microprocessor, and power output unit is connected with the PWM output port of this processor.
This multifunctional electric actuator can realize two-way instantaneous communication by microprocessor and electromotor by digital information.Actuator can provide current alternator charging systems loading information, engine controller can judge according to multiple situations such as battery temp, engine speed, load, moment of torsion, temperature, engine controller (ECU) transmits information to actuator, to control the calm voltage of best electromotor, this circulates in, and automobile ignition switch signal sampling is instantaneous constantly to carry out, so that automobile charging system actual voltage reaches optimum state.But above circuit all be feedback realize, can not realize ECU control electromotor whether generate electricity, therefore such system be have circumscribed.
Generally, when the output of alternating current generator quickly changes time, the idling causing electromotor is quickly changed.The exporting change of this alternating current generator in traditional system, can not make a response too soon for ECU.Owing to the time constant of electromotor is bigger than alternating current generator, so Throttle Opening Control can not adjust in time, thus affecting the idle speed of electromotor.
Summary of the invention
The invention aims to provide a kind of automobile intelligent generator management system, this management system is capable of ECU and dynamically controls electromotor output according to real time load situation, alternating current generator stability under engine idle conditions can be improved, thus improving Fuel consumption.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of automobile intelligent generator management system, including a voltage regulator and ECU, described voltage regulator includes MCU, power module, voltage sampling circuit, excitation control circuit, indicating lamp control circuit, rotating speed sample circuit and ECU communication control circuit；Wherein voltage sampling circuit, rotating speed sample circuit are connected with the input port of MCU respectively, and power module is connected with the power port of MCU, and excitation control circuit is connected with the output port of MCU respectively with indicating lamp control circuit；Described MCU draws B+ end by voltage sampling circuit and is connected with the generating outfan of electromotor, for gathering the output voltage of electromotor；Described MCU draws P end by rotating speed sample circuit and is connected with the phase output of electromotor, is used for gathering generator speed；Described MCU draws excitation con-trol F end by excitation control circuit and is connected with dynamo field coil one end；Described MCU draws L end by indicating lamp control circuit, and L end is attempted by battery positive voltage with B+ end after being sequentially connected in series charging indicator light and ignition switch；Described MCU is bi-directionally connected for realizing two-way communication with ECU by ECU communication control circuit.
Preferably, described ECU communication control circuit includes an input circuit and an output circuit, described input circuit is drawn IG end and is connected with the control output end mouth of ECU, described output circuit is drawn FM end and is connected with an input port of ECU, is capable of ECU by IG end and controls the duty of electromotor in real time.
Preferably, described voltage regulator also has an earth terminal.
Preferably, described voltage sampling circuit includes resistance R2, electric capacity C1 parallel with one another and Zener diode ZD1, one end ground connection after described resistance R2, electric capacity C1 and Zener diode ZD1 parallel connection, the other end draws described B+ end after being sequentially connected in series resistance R1 and diode D1.
Preferably, described excitation control circuit includes a metal-oxide-semiconductor M1 and M1 drive circuit and a diode D2, described M1 drive circuit is connected between grid and the MCU of metal-oxide-semiconductor M1, the source electrode of metal-oxide-semiconductor M1 connects described B+ end, ground connection after the negative pole of the drain electrode connection diode D2 of metal-oxide-semiconductor M1, described F end is drawn by between drain electrode and the negative pole of diode D2 of metal-oxide-semiconductor M1.
Preferably, described indicating lamp control circuit includes a metal-oxide-semiconductor M2 and M2 drive circuit and a diode D3, described M2 drive circuit is connected between grid and the MCU of metal-oxide-semiconductor M2, the negative pole of diode D3 connects the drain electrode of metal-oxide-semiconductor M2, the positive pole of diode D3 connects an input port of MCU by M2 drive circuit, the source ground of metal-oxide-semiconductor M2, described L end is drawn by the positive pole of diode D3.
Preferably, described rotating speed sample circuit includes an audion T1 and two resistance R3, R4, the colelctor electrode of described audion T1 connects MCU, the grounded emitter of audion T1, drawing described P end after described two resistance R3, R4 one end parallel connections, the other end of resistance R3, R4 distinguishes base stage and the emitter stage of connecting triode T1.
Preferably, described input circuit includes a diode D4 and resistance R5, the positive pole of described diode D4 connects an input port of MCU, and described resistance R5 one end connects the positive pole of described diode D4, the other end connects described B+ end, and described IG end is drawn by the negative pole of diode D4.
Preferably, described output circuit includes an audion T2 and resistance R6, and described resistance R6 one end connects an output port of MCU, the base stage of resistance R6 other end connecting triode T2, the grounded emitter of audion T2, described FM end is drawn by the colelctor electrode of audion T2.
The invention has the beneficial effects as follows:
1, this system is capable of ECU and detects generator loading state in real time by voltage regulator, and switch on and off energized circuit according to real time load situation, dynamically control electromotor output, the lag time that electromotor is automatically adjusted can be saved, improve alternating current generator in electromotor stability in the idling state, thus improving Fuel consumption.
2, this system can realize ECU by be slowly increased rotating speed per minute solve alternating current generator idle running time export inadequate problem, ultimately form stable system voltage, it is prevented that running down of battery, improve accumulator service life.
3, engine performance when this system can help to improve high rotating speed.When throttle is fully open, ECU preferentially reduces the mechanical load of alternating current generator thus to the maximum power of electromotor, now, the setting value of voltage regulator is reduced by ECU.Otherwise, reduce the output of alternating current generator, also just decrease the mechanical load of electromotor.When the engine starts, this system can also be improved the acceleration time, reduces running down of battery.
4, this system can feed back electrically and mechanically fault-signal to ECU by voltage regulator, can make suitable correction after identifying these signals by ECU, or by the driver that these failure conditions are conveyed to vehicle that reports to the police.
Accompanying drawing explanation
Fig. 1 is the system connection diagram of the present invention.
Fig. 2 is the circuit block diagram of voltage regulator of the present invention.
Fig. 3 is the circuit theory diagrams of voltage regulator of the present invention.
In figure: voltage regulator 1, ECU2, accumulator 3, magnet exciting coil 4, electromotor 5, MCU6, excitation control circuit 7, rotating speed sample circuit 8, ECU communication control circuit 9, input circuit 901, output circuit 902, indicating lamp control circuit 10, voltage sampling circuit 11, power module 12.
Detailed description of the invention
As depicted in figs. 1 and 2, automobile intelligent generator management system involved in the present invention includes voltage regulator 1 and an ECU2, wherein ECU2 and vehicle electronic control unit.Described voltage regulator 1 includes MCU6, power module 12, voltage sampling circuit 11, excitation control circuit 7, indicating lamp control circuit 10, rotating speed sample circuit 8 and ECU communication control circuit 9.Wherein MCU6 and micro-control unit, voltage sampling circuit 11, rotating speed sample circuit 8 are connected with the data-in port of MCU6 respectively, power module 12 is connected with the power port of MCU6, and excitation control circuit 7 is connected with the control output end mouth of MCU6 respectively with indicating lamp control circuit 10.Described MCU6 is bi-directionally connected for realizing two-way communication with ECU2 by ECU communication control circuit 9.
Described MCU6 is drawn B+ end by voltage sampling circuit 11 and is connected with the generating outfan of electromotor 5, for gathering the output voltage of electromotor 5.Described MCU6 draws P end by rotating speed sample circuit 8 and the phase output with electromotor 5 is connected, and is used for gathering generator speed.Described MCU6 is drawn excitation con-trol F end by excitation control circuit 7 and is connected with dynamo field coil 4 one end, for realizing the control of exciting current.Described MCU6 draws L end by indicating lamp control circuit 10, is attempted by between the generating outfan of accumulator 3 positive pole and electromotor 5 with B+ end after L end is sequentially connected in series charging indicator light LAMP and ignition switch S/W.Described voltage regulator 1 also has an earth terminal G end.
As shown in Figure 3, described voltage sampling circuit 11 includes resistance R2, electric capacity C1 parallel with one another and Zener diode ZD1, one end ground connection after described resistance R2, electric capacity C1 and Zener diode ZD1 parallel connection, the other end draws described B+ end after connecting the data-in port of MCU6 and being sequentially connected in series resistance R1 and diode D1.The input of described power module 12 connects described B+ end by filter capacitor C2, and the outfan of power module 12 connects the power port of MCU6.
Described rotating speed sample circuit 8 includes an audion T1 and two resistance R3, R4, the colelctor electrode of described audion T1 connects the data-in port of MCU6, the grounded emitter of audion T1, drawing described P end after described two resistance R3, R4 one end parallel connections, the other end of resistance R3, R4 distinguishes base stage and the emitter stage of connecting triode T1.
As shown in Figure 3, described excitation control circuit 7 includes a metal-oxide-semiconductor M1 and M1 drive circuit and a diode D2, described M1 drive circuit is connected between grid and the MCU6 of metal-oxide-semiconductor M1, the source electrode of metal-oxide-semiconductor M1 connects described B+ end, ground connection after the negative pole of the drain electrode connection diode D2 of metal-oxide-semiconductor M1, described F end is drawn by between drain electrode and the negative pole of diode D2 of metal-oxide-semiconductor M1.
Described indicating lamp control circuit 10 includes a metal-oxide-semiconductor M2 and M2 drive circuit and a diode D3, described M2 drive circuit is connected between grid and the MCU6 of metal-oxide-semiconductor M2, the negative pole of diode D3 connects the drain electrode of metal-oxide-semiconductor M2, the positive pole of diode D3 connects an input port of MCU6 by M2 drive circuit, the source ground of metal-oxide-semiconductor M2, described L end is drawn by the positive pole of diode D3.
As shown in Figure 3, described ECU communication control circuit 9 includes input circuit 901 and an output circuit 902, described input circuit 901 is drawn IG end and is connected with the control output end mouth of ECU2, and described output circuit 902 is drawn FM end and is connected with an input port of ECU2.Described input circuit 901 includes a diode D4 and resistance R5, the positive pole of described diode D4 connects an input port of MCU6, described resistance R5 one end connects the positive pole of described diode D4, the other end connects described B+ end, and described IG end is drawn by the negative pole of diode D4.Described output circuit 902 includes an audion T2 and resistance R6, and described resistance R6 one end connects an output port of MCU6, and the base stage of resistance R6 other end connecting triode T2, the grounded emitter of audion T2, described FM end is drawn by the colelctor electrode of audion T2.
Before dispatching from the factory, in MCU6, set the adjustment upper limit of generator output voltage in advance, regulate lower limit and alarm for high voltage threshold value and low pressure alarming threshold value.During work,
(1) when ignition switch S/W connects, by generator speed < the incision rotating speed that P end is measured, the generator voltage measured by B+ end is < during battery tension, battery discharging, MCU6 exports the PWM waveform of fixed frequency, fixed duty cycle, metal-oxide-semiconductor M1 is connected, thus controlling generator excitation circuit by M1 drive circuit.Direct battery power is to generator field winding, and generator voltage raises with rotating speed and raises, and electromotor does not generate electricity.
(2) although generator voltage raise, when the generator speed that P end is measured>cut rotating speed, if but battery tension<generator output voltage<regulate the upper limit time, electromotor start generating, electromotor encourage oneself and starts supplying power for outside, accumulator charging.At this moment, the charging indicator light LAMP controlled extinguishes MCU6, and generator voltage raises with rotating speed and continues to raise.
(3), when the generator voltage measured when B+ end is increased to the adjustment upper limit equal to actuator, actuator is started working.Being controlled generator excitation circuit by MCU6 to cut off, generator output voltage declines rapidly；When generator voltage drops to the adjustment lower limit equal to actuator, energized circuit is switched on again, and generator voltage rises.When generator output voltage is raised to again the adjustment upper limit, energized circuit is cut off again, and output voltage declines；Dropping to equal to when regulating lower limit, energized circuit is switched on again, and generator voltage rises, and goes round and begins again, makes generator output voltage be controlled in all the time in certain limit.
(4) when being controlled to IG end low level by ECU2, electromotor does not generate electricity, and charging indicator light LAMP is bright；When ECU2 control IG end to high level or unsettled time, electromotor start generating, charging indicator light extinguish.
(5) voltage regulator 1 utilizes voltage sampling circuit 11, detects generator output voltage, it is determined that whether it exceedes alarm for high voltage threshold value, or lower than low pressure alarming threshold value.When generator output voltage is down to below low pressure alarming threshold value and continues to the setting time, MCU6, by output alarm signal, makes L end bonding, and charging indicator light LAMP is bright.When generator voltage is increased to more than alarm for high voltage threshold value and continues to the setting time, MCU6, also by output alarm signal, makes L end bonding, and charging indicator light LAMP is bright.
In vehicle traveling process, this system can help to improve engine performance during high rotating speed.Such as, when throttle fully opens time, ECU2 preferentially reduces the mechanical load of alternating current generator thus to the maximum power of electromotor.Now, the setting value of voltage regulator 1 is reduced by ECU2.In turn, reduce the output of alternating current generator, also just decrease the mechanical load of electromotor.When engine start, this system can also be improved the acceleration time, and this can reduce running down of battery.
It addition, except the load condition of reporting alternator, this voltage regulator 1 can feed back electrically and mechanically fault-signal to ECU2.These faults include rotor or stator coil open circuit and short circuit, the system overvoltage encouraging MOS short circuit to cause, activator open circuit and rectifier diodes fault.In this case, ECU2 can recognize that these information and makes suitable correction behavior, or by the driver that these failure conditions are conveyed to vehicle that reports to the police.
Although embodiment of the present invention are disclosed as above, but listed utilization that it is not restricted in description and embodiment, it can be applied to various applicable the field of the invention completely, for those skilled in the art, it is easily achieved other amendment, therefore, under the general concept limited without departing substantially from claim and equivalency range, the present invention is not limited to specific details and shown here as the legend with description.
Claims (9)
1. an automobile intelligent generator management system, including a voltage regulator and ECU, it is characterized in that: described voltage regulator includes MCU, power module, voltage sampling circuit, excitation control circuit, indicating lamp control circuit, rotating speed sample circuit and ECU communication control circuit；Wherein voltage sampling circuit, rotating speed sample circuit are connected with the input port of MCU respectively, and power module is connected with the power port of MCU, and excitation control circuit is connected with the output port of MCU respectively with indicating lamp control circuit；Described MCU draws B+ end by voltage sampling circuit and is connected with the generating outfan of electromotor, for gathering the output voltage of electromotor；Described MCU draws P end by rotating speed sample circuit and is connected with the phase output of electromotor, is used for gathering generator speed；Described MCU draws excitation con-trol F end by excitation control circuit and is connected with dynamo field coil one end；Described MCU draws L end by indicating lamp control circuit, and L end is attempted by battery positive voltage with B+ end after being sequentially connected in series charging indicator light and ignition switch；Described MCU is bi-directionally connected for realizing two-way communication with ECU by ECU communication control circuit；
Wherein, MCU sets the adjustment upper limit of generator output voltage and regulates lower limit:
When generator speed less than incision rotating speed, and generator voltage less than battery tension time, battery discharging, generator voltage with rotating speed raise and raise, electromotor does not generate electricity；
When generator speed is more than incision rotating speed, and battery tension is less than generator output voltage, and generator output voltage is less than when regulating the upper limit simultaneously, and electromotor starts generating, and generator voltage raises with rotating speed and continues to raise；
When generator voltage is increased to the adjustment upper limit equal to actuator, generator excitation circuit cuts off, and generator output voltage declines rapidly；When generator voltage drops to the adjustment lower limit equal to actuator, energized circuit is switched on again, and generator voltage rises.
2. automobile intelligent generator management system according to claim 1, it is characterized in that: described ECU communication control circuit includes an input circuit and an output circuit, described input circuit is drawn IG end and is connected with the control output end mouth of ECU, described output circuit is drawn FM end and is connected with an input port of ECU, is capable of ECU by IG end and controls the duty of electromotor in real time.
3. automobile intelligent generator management system according to claim 1, is characterized in that: described voltage regulator also has an earth terminal.
4. automobile intelligent generator management system according to claim 1, it is characterized in that: described voltage sampling circuit includes resistance R2, electric capacity C1 parallel with one another and Zener diode ZD1, one end ground connection after described resistance R2, electric capacity C1 and Zener diode ZD1 parallel connection, the other end draws described B+ end after being sequentially connected in series resistance R1 and diode D1.
5. automobile intelligent generator management system according to claim 1, it is characterized in that: described excitation control circuit includes a metal-oxide-semiconductor M1 and M1 drive circuit and a diode D2, described M1 drive circuit is connected between grid and the MCU of metal-oxide-semiconductor M1, the source electrode of metal-oxide-semiconductor M1 connects described B+ end, ground connection after the negative pole of the drain electrode connection diode D2 of metal-oxide-semiconductor M1, described F end is drawn by between drain electrode and the negative pole of diode D2 of metal-oxide-semiconductor M1.
6. automobile intelligent generator management system according to claim 1, it is characterized in that: described indicating lamp control circuit includes a metal-oxide-semiconductor M2 and M2 drive circuit and a diode D3, described M2 drive circuit is connected between grid and the MCU of metal-oxide-semiconductor M2, the negative pole of diode D3 connects the drain electrode of metal-oxide-semiconductor M2, the positive pole of diode D3 connects an input port of MCU by M2 drive circuit, the source ground of metal-oxide-semiconductor M2, described L end is drawn by the positive pole of diode D3.
7. automobile intelligent generator management system according to claim 1, it is characterized in that: described rotating speed sample circuit includes an audion T1 and two resistance R3, R4, the colelctor electrode of described audion T1 connects MCU, the grounded emitter of audion T1, drawing described P end after described two resistance R3, R4 one end parallel connections, the other end of resistance R3, R4 distinguishes base stage and the emitter stage of connecting triode T1.
8. automobile intelligent generator management system according to claim 2, it is characterized in that: described input circuit includes a diode D4 and resistance R5, the positive pole of described diode D4 connects an input port of MCU, described resistance R5 one end connects the positive pole of described diode D4, the other end connects described B+ end, and described IG end is drawn by the negative pole of diode D4.
9. the automobile intelligent generator management system according to claim 2 or 8, it is characterized in that: described output circuit includes an audion T2 and resistance R6, described resistance R6 one end connects an output port of MCU, the base stage of resistance R6 other end connecting triode T2, the grounded emitter of audion T2, described FM end is drawn by the colelctor electrode of audion T2.
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| CN201410291236.5A CN104052355B (en) | 2014-06-26 | 2014-06-26 | A kind of automobile intelligent generator management system |
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| CN104052355B true CN104052355B (en) | 2016-07-06 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104597793A (en) * | 2015-01-28 | 2015-05-06 | 天津博顿电子有限公司 | Automobile generator intelligent control method and device |
| FR3040569B1 (en) * | 2015-09-01 | 2017-08-25 | Valeo Equip Electr Moteur | USE OF A CONTROL SYSTEM FOR A POLYPHASE ROTARY ELECTRIC MACHINE HAVING PHASE SHORT CIRCUITS, AND USE OF THE CORRESPONDING ROTATING ELECTRIC MACHINE. |
| CN105897095A (en) * | 2015-12-17 | 2016-08-24 | 荆州炬擎科技有限公司 | Voltage regulator capable of enabling generator to generate power stably when automobile drives at low idle speed |
| CN106877478B (en) * | 2017-04-28 | 2020-03-27 | 重庆三信电子股份有限公司 | Vehicle power supply system, active hybrid rectifier and control method |
| CN109995282B (en) * | 2017-12-29 | 2024-01-26 | 北京佩特来电器有限公司 | Voltage regulator and motor vehicle alternator equipped with the same |
| CN108322114A (en) * | 2018-02-28 | 2018-07-24 | 广西玉柴机器股份有限公司 | A kind of automobile current generator system and start method |
| CN108312989A (en) * | 2018-04-09 | 2018-07-24 | 芜湖杰诺瑞汽车电器系统有限公司 | Vehicle electricity system and its alarm method |
| CN110789473A (en) * | 2018-08-02 | 2020-02-14 | 北京佩特来电器有限公司 | Motor vehicle and motor vehicle control method |
| CN112448628B (en) * | 2019-09-04 | 2022-07-26 | 广州汽车集团股份有限公司 | Generator control method and system |
| CN112152526B (en) * | 2020-09-27 | 2022-11-29 | 浙江德宏汽车电子电器股份有限公司 | Pre-excitation current rotating speed response energy-saving control method for intelligent automobile generator |
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| JPS5537881A (en) * | 1978-09-08 | 1980-03-17 | Nippon Denso Co | Automotive generator voltage controller |
| CN2807606Y (en) * | 2005-06-03 | 2006-08-16 | 夏烈 | Time-lapse start-up voltage regulator for automobile |
| CN2909694Y (en) * | 2006-02-17 | 2007-06-06 | 陈佳宁 | Vehicle generator voltage regulator with microprocess controller |
| CN201142664Y (en) * | 2008-01-14 | 2008-10-29 | 徐俊亚 | Generator voltage regulator for multifunctional vehicle |
| CN201797477U (en) * | 2010-08-17 | 2011-04-13 | 江苏云意电气股份有限公司 | Exciting single-functional automobile voltage regulator |
| CN102647140B (en) * | 2012-04-24 | 2014-08-27 | 锦州万得汽车电器电子科技有限公司 | PCM (pulse-code modulation) control based automotive generator voltage regulation method and PCM control based automotive generator voltage regulator |
| CN103792978B (en) * | 2012-11-02 | 2015-12-02 | 环旭电子股份有限公司 | Soft start voltage regulator |
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