CN102865175A - Energy balance ignition circuit of gasoline engine and balance control method - Google Patents
Energy balance ignition circuit of gasoline engine and balance control method Download PDFInfo
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- CN102865175A CN102865175A CN2012102313054A CN201210231305A CN102865175A CN 102865175 A CN102865175 A CN 102865175A CN 2012102313054 A CN2012102313054 A CN 2012102313054A CN 201210231305 A CN201210231305 A CN 201210231305A CN 102865175 A CN102865175 A CN 102865175A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P9/00—Electric spark ignition control, not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P9/00—Electric spark ignition control, not otherwise provided for
- F02P9/002—Control of spark intensity, intensifying, lengthening, suppression
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Abstract
The common-rail direct injection (CDI) ignition technology of an existing gasoline engine has the disadvantages that the supply and the demand of ignition energy are unbalanced and the energy output by an ignition circuit cannot be accurately provided according to the needs of an engine. Ignition is realized at constant pressure based on a basic balance technology, and for the balanced supply and demand of the ignition energy, a control circuit controls the operation state of a booster circuit through a driving circuit by measuring the voltage of an energy storage circuit and outputting a booster control signal accordingly, so that the ignition voltage is constant and meets the standard. Ignition energy demand factors, such as cylinder temperature, and the position of a throttle which are changed along with the working conditions of the engine are detected, and the corresponding energy storage voltage is calculated. Based on constant pressure control, booster parameters are measured, the ignition energy is quantitatively compensated cycle by cycle, so that the balance control over the working conditions is realized. Constant pressure and working condition balancing technologies are collectively called as energy balance control which is an energy qualitative ignition technology and is a new generation of mature ignition technology. An energy balancing technology is adopted for manufacturing a good direct current igniter, and within a certain battery voltage and rotating speed, the ignition voltage or the corresponding energy storage voltage are constant to be design values or values which are quantitatively provided according to the needs of the working conditions.
Description
Technical field
This programme belongs to the internal-combustion engine ignition technical field, relates in particular to petrol engine CDI DC ignition road.
Background technique
Igniter should be on appropriate opportunity with suitable energy to engine ignition.The three generations has been experienced in the development of CDI firing circuit, first generation AC charging adds machinery control advance angle, the second generation is handed over or DC charging adds circuit control advance angle, the third generation utilizes single-chip microcomputer to make the control of advance angle more accurate, can accurately control advance angle and namely light a fire opportunity, and it is harmonious to have improved ignition energy.Ignition energy is from accumulator, and accumulator mainly is an electric capacity, and accumulator voltage or tank voltage refer to the voltage of this electric capacity.Ignition voltage refers to tank voltage voltage to spark plug after high pressure packet.This paper or to ignition voltage and ignition energy and with it corresponding tank voltage or energy does not distinguish, narrate with convenient.
Existing CDI DC ignition road is by rotating speed at the ignition energy that each light-off period produces, and the working state of DC voltage booster circuit and battery status determine.When engine speed was high, the duration of charge shortened, and the igniting increase in density needs DC voltage booster circuit to improve output power to guarantee the providing electric energy of accumulator to reach the igniting requirement at every turn.And cell voltage is when descending, if do not add adjusting, the energy that the per cycle output of booster circuit provides namely for each igniting will descend.Therefore, for guaranteeing still to provide enough ignition energies under the adverse condition, it is larger that the output power of DC voltage booster circuit must be designed to be, to satisfy the ignition energy requirement under low voltage and the higher rotation speed adverse condition.And when battery and rotating speed were in the normal state or are conducive to boost, DC voltage booster circuit output energy just inevitable significantly higher rational ignition energy needed, so that needed to rely on the maximum voltage limit circuit prevent that voltage from further raising.In fact, such as motorcycle battery, from the use initial stage to the later stage, average voltage can have 3v to reduce, and dailyly has a 3v fluctuation.Also need add the impact of rotation speed change.This shows, must make on-line control according to car load equipment and running state to the working state of booster circuit, otherwise the energy that ignition voltage or firing circuit provide must not be inconsistent with the igniting demand.Prior art also can adopt the method for measuring cell voltage and rotating speed by control storage capacitor voltage adjusting point ignition voltage, but because not having take manostatic technique as the basis, the quantitative control device that also accumulator and booster circuit is not adopted, constant voltage igniting and not yet ripe by the technology of regulating working conditions ignition energy.
Summary of the invention
Up to now, no matter whether be combined with single-chip microcomputer, the changes in demand that per cycle of direct current CDI igniter output energy still can not be preferably causes according to engine speed or equipment state and other working conditions change of motor is made adjusting.The ignition energy that per cycle of direct-current ignitor produces and actual ignition institute energy requirement are normal inconsistent to be the energy unbalanced supply-demand.Tank voltage then can have up to the unexpected fluctuation more than the 70V because rotating speed and cell voltage change.Be unfavorable for burning and reduction of discharging, also cause the electronic circuit load large, reliability reduces.In view of this, firing circuit of new generation should realize that on the prior art basis it is the control of ignition energy balance that ignition energy accurately provides as required, and the change prior art is extensive to energy control.
This programme mainly solves the problem that the unbalanced and ignition energy of existing gasoline engine ignition voltage can not cause with the variable working condition coupling.By Real-Time Monitoring accumulator voltage, in time regulate the booster circuit working state, realize that ignition voltage is constant or provide ignition energy according to the engine operating condition demand on this basis, be generically and collectively referred to as the control of the energy equilibrium of supply and demand or energy balance.New technology is improved burning, raises the efficiency, and reduces discharging, reduces the device temperature rise.Improve the firing circuit reliability of operation.
The electric circuit constitute scheme is seen Fig. 1, comprises control circuit, firing circuit, accumulator, drive circuit, booster circuit, the control end of an output terminal tie point ignition circuit of control circuit, a power end of firing circuit connects accumulator, another power end ground connection of firing circuit.Discharge the accumulator electric energy and make external high pressure packet experience electric current, spark plug discharge through the power end when firing circuit is closed.Another output terminal of control circuit connects the input end of drive circuit, and the output terminal of this drive circuit connects the control end of booster circuit, and the high-voltage output end of booster circuit connects accumulator, charges to accumulator when booster circuit is worked.The feature of scheme is: also be provided with measuring circuit, its input end connects accumulator, and its analog signal output connects the data transfer input end of control circuit or the input end of the output of the logical signal after data transfer connection control circuit.
Control circuit is generally the set of single-chip microcomputer or single-chip microcomputer and other circuit, can accept one to multiple waypoint fire signal, the motion state of magnetogenerator on fire signal reflection motor or the motorcycle, prompting igniting opportunity.The signal that control circuit has dutycycle to drive circuit output, control booster circuit rate of pressure rise, or export simple switching signal, drive the start and stop of booster circuit.Booster circuit can have various ways, and commonly used have Duty ratio control formula booster circuit and a transformer oscillating type booster circuit.Booster circuit is as the local function circuit, and this case does not limit its structural form, but will obtain the highest control effect, needs to export enough ignition energies and be convenient to computer control to accumulator within the cycle.When booster circuit moved, tank voltage continued to raise in certain scope, and when booster circuit was out of service, tank voltage stopped to rise.
Measure in real time the size of tank voltage by measuring circuit, control circuit is controlled booster circuit according to metrical information, makes energy and the igniting demand of its forward direction accumulator output of lighting a fire or unify the value balance of setting according to demand within the cycle.Therefore actual to the control of ignition energy or ignition voltage is the control that accumulator is stored energy or voltage.Measuring circuit disposes sample circuit, and accumulator voltage is consisted of the dividing potential drop sampling, is converted to the backward single-chip microcomputer output of switching value through analog comparator.Analog comparator also can be integrated in the single-chip microcomputer.Booster circuit can be controlled its state by control circuit, is break-make control at least, is the adjustable booster circuit of output state.Through factor Unitings such as engine demand, determine the steady state value of ignition voltage or ignition energy, corresponding accumulator voltage claims tank voltage value up to standard or voltage up to standard.The dividing potential drop of definite sampling is the analog comparator reference value when, and analog comparator exporting change when tank voltage is up to standard makes control circuit obtain interrupt signal.Booster circuit should be able to provide institute's energy requirement for accumulator within the cycle.Control circuit once occur from the interruption of measuring circuit, namely from mouth line output control signal, stops DC voltage booster circuit work in the initial lasting detection of each charge cycle, namely stops the energy output of this circuit of this cycle, and tank voltage no longer rises.Adjustment process overcomes cell voltage, and rotation speed change and booster circuit self performance factor rise to voltage up to standard before the tank voltage igniting, realize the constant voltage igniting.Voltage up to standard is that the unified institute's energy requirement of having considered to light a fire is determined, therefore the control of the tank voltage constant voltage take voltage up to standard as desired value also is that a kind of important supply and demand of ignition energy is regulated, and is one of energy balance control mode.Solved the problem of prior art ignition voltage fluctuation fully.
Adopt A/D conversion or query method to measure tank voltage, only need to change detect interrupt signal as the A/D conversion value that detects tank voltage or its dividing potential drop into, or analog comparator conversion logic value.
The control signal dutycycle can the output of auxiliary adjustment booster circuit.Arrive that tank voltage not occur up to standard if boost to time of ignition, this energy output of DC voltage booster circuit is lower than the igniting demand.DC voltage booster circuit is utilized pressure rising time to greatest extent in the cycle, can increase unit of dutycycle of boosting rectifier control waveform.Energy output increases, and tends to balance with the igniting demand.If tank voltage reaches in charge cycle too early, as early to 1/4 of the cycle, illustrate that the available output of DC voltage booster circuit is more greater than the igniting demand, can reduce unit of dutycycle of boost conversion waveform, make voltage up converting circuit be operated in the center of rated power, keep its higher conversion efficiency.
Electronic switching element in the booster circuit can adopt bipolar transistor, field effect transistor, IGBT(insulated gate bipolar transistor) and combination, and be not limited to cited and should configure corresponding drive circuit.
Control circuit connects fire signal, obtains the motion state information of motor and magnetogenerator from ignition pulse signal.Fire signal can be Transistor-Transistor Logic level or other level, when adopting the signal level of non-control circuit compatibility, usually needs through signal transformation circuit, and control circuit self also can comprise such shaping circuit.
Fire signal comprises the motorcycle ignition trigger signal, automobile camshaft, and crank position and corner or tach signal etc. provide motor motion state information.Control circuit is to interrupt receiving one to multiple waypoint fire signal.After making best advance angle calculation process, igniting when time of ignition arrives through external high pressure packet and spark plug discharge, is finished a light-off period with the energy of accumulator.Existing advance angle correction technique or Optimum spark advance angle technology are adopted in this case, but this are not made improvements, and narration is simple.
As mentioned above, the constant pressure point ignition technique comprises a kind of tank voltage constant pressure control method: in the cycle, control circuit starts booster circuit, and continue to monitor accumulator voltage, after voltage is up to standard, stop the booster circuit operation, wait for after time of ignition arrives and implement igniting.
Control circuit can comprise other circuit, enlarges the scope of control circuit, then forms simpler constant pressure control point ignition circuit form.The new circuit arrangement that forms comprises control circuit, firing circuit, and accumulator, booster circuit, the control end of an output terminal tie point ignition circuit of control circuit, a power end of this firing circuit connects accumulator, its another power end ground connection.Another output terminal of control circuit connects the control end of booster circuit, and the high-voltage output end of booster circuit connects accumulator.Control circuit also connects accumulator, measures the value up to standard that accumulator voltage whether reaches design, i.e. monitoring internal comparator whether occurs interrupts.When accumulator voltage is up to standard, stop the booster circuit operation.According to this form, can also form the gasoline engine ignition constant voltage and control special-purpose single-chip microcomputer.
Drive circuit strengthens control circuit to the driving of booster circuit, and this circuit also can be included in control circuit or the booster circuit, and some booster circuit may directly be driven by control circuit.
The operating mode factor of motor makes motor to the demand of ignition energy larger variation be arranged.The burning quality, engine efficiency, temperature rise, the performances such as discharging can change with ignition energy demand and the balance that provides.The demand factor of ignition energy has a plurality of, namely can be multifactor compensation.Consideration operating mode factor is done energy balance control, is called for short energy balance or operating mode balance.Prior art also can have operating mode factor compensation point ignition voltage or tank voltage, but is on the basis of not obtaining the accumulator constant voltage or is not to carry out on the basis of the tank voltage of determining, the determinacy of compensation reduces.Also not to the quantitative control technique of booster circuit or tank voltage.Therefore the multifactor compensation of prior art is qualitative control, does not belong to the alleged energy balance control of this case.
The operating mode balance is to implement quantitative compensation by operating mode on the energy that accumulator has obtained to know is the basis of constant voltage control, and compensating action is determined, forms tank voltage quantitative accurately, and Cycle by Cycle provides corresponding ignition energy by engine operating condition.The control of operating mode balance is point of adjustment ignition voltage or ignition energy, considers engineering experience, and operating mode balance control technique only needs take tank voltage as the control target.
Constant voltage control all is the quantitative control technique of ignition energy with the control of operating mode balance, and the latter is the ignition energy optimal control, and the control of general name energy balance is full ripe gasoline engine ignition circuit of new generation and controlling method.
Design accumulator voltage substantially up to standard, this tank voltage can satisfy tool than the operating mode of low energy demand.The sample resistance dividing potential drop of designing measuring circuit or comparator reference etc., after tank voltage rose to voltage substantially up to standard, testing circuit sent signal substantially up to standard.And for the large engine operating condition of energy requirement, need behind signal substantially up to standard, to keep again the certain operation duration of booster circuit, just make tank voltage reach requirement.This is that energy balance control obtains the various influence factors space adaptive to the ignition energy demand, make ignition energy can from different operating mode demand balances.
The operating mode factor comprises acceleration, rotating speed, center housing temperature or coolant water temperature, throttle opening or gas flow etc.Increase one to multiple road correlative factor testing circuit, general designation auxiliary detection circuit connects control circuit separately, and transducing signal can be voltage, electric current or digital signal and signal of communication.Control circuit Test Cycle factor parameter value, correction-compensation amount (or directly determining required tank voltage), i.e. angle or the duration of booster circuit operation behind the correction signal substantially up to standard.The correction rule is followed by the correction curve of engineering experience acquisition or form etc.For example the auxiliary detection electric circuit inspection goes out center housing temperature when very high, the offset of ignition energy or ignition voltage can reduce, namely stop earlier the operation of booster circuit behind signal substantially up to standard, make accumulator voltage less rising or no longer rising behind signal up to standard, vice versa.Control circuit obtains voltage signal substantially up to standard before the compensation beginning, and tank voltage has reached certain certain value, provides definite compensation rate according to duty parameter and compensation model again subsequently, and its value equals that required ignition voltage deducts voltage up to standard under this operating mode value.Various compensation factors can certain rule superposition or the highest compensation of selection.The realization of compensation can be with reference to the known curve that boosts.As with straight line as ascend curve, can be simply according to voltage and the speed of required compensation, at voltage substantially up to standard after the corresponding moment substantially up to standard, continuity booster circuit working time, finish compensation.
After booster circuit provided enough energy and adopts the constant voltage control technique for accumulator within the cycle, rotating speed does not become affected the factor that energy provides, but rotating speed still can be used as a kind of operating mode factor, and tach signal obtains from fire signal.
The boost charge speed of booster circuit is relevant with cell voltage, and this effect in this case and constant voltage control is irrelevant, and the compensation needed time is that booster circuit is balance condition demand required working time after voltage substantially up to standard reaches in the operating mode balance but affect.The operating mode balance can be considered this influence factor.The time that tank voltage needs from initially rising to voltage substantially up to standard claims basic reaching standard time, in the situation that other factors is constant, this time is determined by cell voltage.Measure this time, this factor is joined in the aforesaid compensation operation, the quantitative control technique that can improve booster circuit is the control of operating mode balance.
Cycle starts booster circuit, namely begins to measure this basic reaching standard time, until voltage substantially up to standard is finished measurement after arriving.The basic reaching standard time that obtained by detection with voltage substantially up to standard and a upper cycle during this time calculates the actual rate of rise of tank voltage.Can the various impacts eliminations on the tank voltage rate of pressure rise of cell voltage will be comprised.Before tank voltage is substantially up to standard, Test Cycle parameter is also calculated corresponding tank voltage, again according to required compensation rate namely voltage substantially up to standard to the operating mode corresponding tank voltage of institute and boost slope, calculating is the operating mode compensation, and the time that the required continuation of booster circuit moves namely compensates needed time.Also the tank voltage measuring circuit can be set again, namely increase another and interrupt detecting, the slope that calibrates compensator section in service, then compensation is more accurate.Voltage difference between secondary interrupts is compensated slope over 10 divided by the time of correspondence.
Begin continuity compensation needed time behind tank voltage signal substantially up to standard, stop booster circuit after time-delay is finished, compensation is finished.
Produce thus a kind of method of utilizing voltage measurement up to standard to calculate the tank voltage climbing speed, step is to start booster circuit, and the beginning timing treats that tank voltage reaches voltage up to standard, draws the time of its experience, calculates rate of pressure rise.This measurement is calculated does not need each cycle to carry out.According to rate of pressure rise, can compensate the operating mode factor such as preceding method.Or directly control tank voltage, and final tank voltage can be higher or lower than voltage up to standard.
Adopting A/D converted measurement tank voltage, often is feasible.Make rising stable through filtering the output of measuring circuit.Measuring circuit analogue value output connection control circuit A/D conversion input end adopts the high-speed a/d conversion.After booster circuit starts, continue to monitor tank voltage, namely behind each EOC, judge and whether arrive voltage up to standard or ignition voltage corresponding to duty parameter value, whether finish with interruption or inquiry judging conversion.If do not finish, restart immediately conversion, behind required voltage, stop booster circuit, tank voltage can be controlled to desirable value.The operating mode balance is then controlled desired value with the required ignition voltage of operating mode as tank voltage.The measurement of curve of need not to consider to boost is calculated.
Adopt A/D converted measurement tank voltage, the interference that risen by tank voltage.Invent a kind of method of measuring the tank voltage climbing speed with the A/D transformation approach, interference-free.Cycle starts booster circuit, stops to boost behind certain hour such as 2ms.Start the A/D converted measurement tank voltage value of this moment.Can calculate the tank voltage climbing speed.After obtaining rate of pressure rise, utilize rate of pressure rise control tank voltage, its process is: start booster circuit, during the beginning boost gauge, while Test Cycle parameter, calculate corresponding tank voltage and utilize given rate calculating tank voltage to rise to operating mode respective value needed time, as controlling then with constant voltage value and rate calculations time for constant voltage.After arriving pressure rising time, stop booster circuit.
No matter whether adopt the energy balance technology, the power of booster circuit is rich or greatly rich often to the igniting demand, and energy balance control can make booster circuit out of service early, reduces booster circuit working time.This from time of ignition tend to reach half light-off period time or more than.Can postpone light-off period and begin rear booster circuit operation, be connected with time of ignition the finish time of boosting.This eliminates tank voltage and leaks through measuring circuit or other leakage paths, keeps tank voltage, also can greatly reduce accumulator and on average take advantage of and be subjected to voltage.The initial time that the control booster circuit boosts claims optimum Startup time control.
Cycle begins that rear booster circuit suitably postpones or delayed startup not, and continues to detect voltage up to standard and monitor time of ignition.If tank voltage is first up to standard, booster circuit is started in unit of time of next cycle delay.If time of ignition arrives first, then carry previous unit in next cycle and start.
The present invention is on the basis on existing petrol engine DC ignition road, and measuring circuit is set, and measures tank voltage, the control booster circuit, make tank voltage and igniting demand one by one the cycle average out, realize that constant voltage igniting and Cycle by Cycle light a fire by the operating mode demand.The various applicable circuit of prior art, and certain improvement variation are combined with this case circuit feature or method characteristic, all within the scope of the present invention.Follow-up limited example is only for wherein several preferred.
Beneficial effect: the constant voltage control technique has solved the petrol engine CDI unbalanced great technical barrier of long-standing ignition voltage of lighting a fire fully.At certain cell voltage such as more than the 8-10V, Revolution Per Minute 10,000 turns following, and holding point ignition voltage perseverance is design load, or fluctuation is less than 3%.Tank voltage and rotating speed and cell voltage are irrelevant and eliminate the discreteness of booster circuit performance.Depart from when larger in operating conditions, then greatly reduce the ignition voltage fluctuation.
The operating mode control balancing is followed engine operating condition and is changed on the basis of constant voltage control, the ignition energy Cycle by Cycle quantitatively provides by the operating mode demand, has solved gasoline engine ignition fully, and ignition energy can not accurately configure permanent technical barrier by operating mode.Tank voltage is by the operating mode demand, and fluctuation namely realizes quantitatively control less than 5%.
On the basis of existing optimum ignition advance angle technology, energy balance has realized constant voltage and the control of optimum ignition energy, perfect gasoline engine ignition circuit function.
Improve engine combustion, the motor efficiency improves more than 5%, is beneficial to energy-saving and emission-reduction, reduces disposal of pollutants more than 5%, makes gasoline exhaust be easy to reach new standard.Motor is easy to start at low temperatures, reduces temperature cylinder under the high temperature, and power strengthens, and accelerates to operate steadily effectively.
The firing circuit efficiency improves, and device heating and pressure-bearing reduce, Reliability Enhancement.
Description of drawings
Fig. 1 scheme sketch.
Fig. 2 example 1, duty cycle signals is controlled the motorcycle constant pressure point ignition circuit that boosts.
Fig. 3 example 2, the band current limliting drives duty cycle signals and controls the constant pressure point ignition circuit that boosts.
Fig. 4 example 3, firing circuit is repaid in transformer oscillation boosting motorcycle constant voltage and cylinder temperature compensation.
Fig. 5 example 4, Duty ratio control boost motorcycle constant voltage and multifactor compensation point ignition circuit.
Fig. 6 example 5, automobile or multicylinder engine energy balance firing circuit.
Fig. 7 example 6 special-purpose SCM type motorcycle energy balance firing circuits.
Under the different state of equilibrium of Fig. 8, change the operation duration and control each parameter or signal sequence schematic diagram as energy balance.
Under the different state of equilibrium of Fig. 9, the change duty likens energy balance to and controls each parameter or signal sequence schematic diagram.
The pulse shaping nework figure of Figure 10 doubleway output.
Figure 11 has or not the tank voltage curve comparison schematic diagram of the initial time control of boosting.
Figure 12 temperature factor compensation energy storage voltage schematic diagram.
Figure 13 tank voltage constant voltage control program flow chart.
Figure 14 comprises the tank voltage constant voltage control program flow chart that the control signal dutycycle is adjusted.
Figure 15 tank voltage operating mode control balancing processing procedure program flow diagram.
The optimum Startup time control program of Figure 16 booster circuit flow chart.
Figure 17 A/D converted measurement tank voltage constant voltage and operating mode control balancing processing procedure program flow diagram.
Embodiment
Example 1: see Fig. 2, duty cycle signals is controlled the motorcycle constant pressure point ignition circuit that boosts.Comprise control circuit, firing circuit, accumulator, drive circuit, booster circuit, measuring circuit.Firing circuit wherein, accumulator, control circuit all adopt standard or common circuit, and interlock circuit figure is conformed to the principle of simplicity, and narration is conformed to the principle of simplicity or is omitted.Control circuit is the set of single-chip microcomputer or single-chip microcomputer and other circuit, and control circuit also can be under the condition without single-chip microcomputer, with the close function of digital circuit imitation chip microcontroller.
This routine control circuit adopts 89C52, adopts Duty ratio control formula booster circuit.P1.0 connects drive circuit.Consider Under Different Work Condition of Engine, unified definite igniting required voltage or tank voltage corresponding to energy claim voltage up to standard and comparator circuit parameter.Control circuit sends the control signal with certain dutycycle, is resistance through drive circuit, and triode T2 arrives the control end of booster circuit, makes the electronic switch K1 break-make of booster circuit, makes intermittently the elementary turn-on current of the transformer B1 that connects battery.Transformer secondary output induces high pressure, and D1 charges to accumulator through diode, and tank voltage raises gradually, until voltage up to standard, comparator output switching activity, control circuit detect signal up to standard.This booster circuit should have enough large output power, makes accumulator obtain voltage up to standard in light-off period.Single-chip microcomputer is after receiving signal up to standard, and the boost conversion that stops booster circuit namely stopping to the accumulator charging, and tank voltage is controlled in the voltage up to standard of design.Single-chip microcomputer preferably receives signal up to standard with interrupt mode.
The effect of measuring circuit is the signal conversion, is simulation or the logical signal of control circuit compatibility with the high pressure conversion of accumulator.This routine measuring circuit connects the interrupting input mouth P3.3 of accumulator and control circuit, and carries analog comparator.The backward end of access analog comparator after having bleeder circuit to the tank voltage sampling, it is held in the same way and is provided with reference potential.Tank voltage when determining to reach igniting and require by designing, dividing potential drop is comparator reference when, so that when booster circuit begins to boost after, when tank voltage reaches designing requirement and is voltage up to standard, the comparator upset, control circuit produces interruption.As mentioned above, detect interrupt to occur after, control circuit stops the booster circuit operation through driving, tank voltage stops to rise, and until next cycle just restart.This adjustment process makes tank voltage rise to constant value up to standard before time of ignition.
The execution principle of the generation of time of ignition and igniting is inherited prior art, and its working principle is independent of the principle of energy balance control.P3.2 connects the igniting trigger signal of Transistor-Transistor Logic level, therefrom obtains motor or magnetogenerator motion state information, do the Optimum spark advance angle correction after, in good time through port P1.2, control point ignition circuit igniting, and to external high pressure packet output current, make the spark plug discharge of its connection.The TTL trigger signal is from the motorcycle ignition trigger, and through the pulse shaping circuit.But Fig. 3 of shaping circuit reference example 2.The habitual pulse shaping nework that makes of prior art produces doubleway output, and two road signals are taken from respectively the positive and negative half-wave of igniting trigger impulse.Two ports of control circuit connect trigger signal.The P3.4 of control circuit can connect this another road signal, and with reference to the accompanying drawings 10.The mode of fire signal accepted by control circuit and port number is also irrelevant with the balance control principle of this case, and various signals are processed and interconnection technique all can be applicable to the present invention.
Booster circuit, except start stop mode, also its output of the auxiliary adjustment of available control signal dutycycle.
Single-chip microcomputer P3.3 mouth is done to continue to detect to storage capacitor voltage through measuring circuit.Tank voltage reaches the voltage up to standard that design is determined, through the dividing potential drop sampling, comparator circuit produces single-chip microcomputer and interrupts.Single-chip microcomputer changes the output control signal immediately, stops the energy output that controlled boost conversion namely stops this circuit of this cycle, and tank voltage stops to rise.If at whole charge cycle or approach the end of term in week not detect tank voltage up to standard, illustrate that the output of booster circuit energy may be lower than the igniting demand, controlled booster circuit is because expiring the cycle or closely expiring cycling, control circuit is difficult to increase the cycle interior operation duration of this circuit, just can increase unit of dutycycle of boost conversion waveform, booster circuit output is increased, tend to balance with the igniting demand.And if comparator interrupts occuring too early in charge cycle, as early to 1/4 of the cycle, illustrate that the DC voltage booster circuit output power is more much larger than the igniting demand power, single-chip microcomputer can reduce unit of dutycycle of boost conversion waveform, the voltage up converting circuit output power is reduced, keep its higher conversion efficiency, tank voltage and ignition voltage keep constant simultaneously.
Fig. 8 is under the different state of equilibrium, and it is that constant voltage is controlled each parameter or signal sequence schematic diagram that energy balance control is done in change operation duration.Adjustable booster circuit is affected by cell voltage, and the charging pulse amplitude can change shown in its open circuit output namely, to accumulator charging rate also respective change.A arranged side by side, B, three little figure of C represent respectively under the different booster circuit states, in constant voltage control or the energy balance process, the sequential of each parameter or signal.Abscissa is cycle or magnetogenerator angle of rotation, represents with r, and y coordinate is voltage.Among each figure, after accumulator voltage is increased to 200V gradually, the also corresponding raising of each self-corresponding sampling voltage, respectively to Ka, Kb, Kc 3 points, the partial pressure value of sample circuit has all arrived the analog comparator upset threshold level 2.5V that sets, and corresponding magnetogenerator corner ra, rb, rc, different because of the booster circuit state, represent under the different charging rates, the work duration of adjustable booster circuit is different, but be namely out of service after 200V in this legend arrives in accumulator value up to standard all, tank voltage is constant.Arrow upwards represents, after accumulator voltage arrives scale value, make the process that self stops to rise through a series of feedback: raise at accumulator voltage, make sampling voltage to the 2.5V that sets, the boosting rectifier control signal of single-chip microcomputer stops, cause adjustable booster circuit and stop transport, charging pulse disappears, and accumulator voltage stops to rise.After single-chip microcomputer sent ignition control signal, the accumulator energy discharged, loss of voltage, and light-off period is finished tour, enters next light-off period.
Fig. 9 is under the different booster circuit states, changes the auxiliary constant voltage of dutycycle and controls each parameter or signal sequence schematic diagram.Under the different booster circuit states, it is A that accumulator voltage arrives desired value, B, and 200V position needed time or magnetogenerator angle of rotation are different among each figure of C, at A, B is respectively ra among each little figure of C, rb, rc.Little figure B, because charging pulse voltage is high, the dutycycle of its pulse reduces.Little figure C, its charging pulse voltage is low, than A, has improved dutycycle.The change of charge pulse duty cycle all makes possible the departing from of accumulator voltage be compensated from control circuit.
Can adopt the control of the optimum Startup time of booster circuit.
Delay value is accused the initial time lag that starts to booster circuit in cycle processed.Begin through certain time-delay or do not delay time in the cycle, start booster circuit, continue to monitor simultaneously analog comparator and interrupt, wait signal to be targeted, and wait for that simultaneously time of ignition arrives.If the waiting period receive and then enter interrupt routine by signal up to standard, delay value is added a unit backed off after random interrupts, wait for time of ignition, and the time-delay that will make in next cycle increases, booster circuit operation duration is shortened.Otherwise if until time of ignition is not still received the analog comparator interruption, the expression tank voltage does not rise to voltage up to standard before igniting, delay value should be subtracted a unit, and next cycle can shorten time-delay.Stop simultaneously the booster circuit operation, carry out igniting, this light-off period finishes.
Figure 11 is the tank voltage curve comparison schematic diagram that has or not the initial time control of boosting.Be divided into half range A, without the tank voltage curve of Startup time control.Second good fortune B, the tank voltage curve under the initial time control.A shows, boosts process respectively at M under the different voltages up to standard, and n-hour finishes, and with time of ignition distance is arranged.Cause the loss of tank voltage after charging is complete.Scheme B and then show, under the different voltages up to standard, initial time becomes respectively P, and Q all is connected the finish time with time of ignition.
The control of the optimum Startup time of booster circuit makes tank voltage avoid leakage loss after charging is complete, keeps the balance Control data, improves balance control technical order, can make the supplementary means of balance control.Also improve firing circuit efficient, greatly reduce the average voltage that device bears.
All the other explanations of this example see below continuous each example.
Example 2: with reference to figure 3, the band current limliting drives duty cycle signals and controls the constant pressure point ignition circuit that boosts.Comprise control circuit, firing circuit, accumulator, drive circuit, booster circuit, measuring circuit and pulse shaping nework.Control circuit adopts PIC12F615, adopts duty cycle signals control booster circuit.The INT end of single-chip microcomputer connects the output of pulse shaping nework, and GP5 connects the input of drive circuit, and its output connects the control end of the boosting rectifier control end TIP122 of booster circuit.Drive circuit comprises each one of resistance and diode, also has boosting transformer primary current limiting circuit, by R1 primary current is taken a sample, and triode T1 feeds back to driving side.
Measuring circuit is a pair of divider resistance, and its dividing potential drop output connects the CIN0-end of single-chip microcomputer, i.e. simulation is reverse input end relatively.Analog comparator in the single-chip microcomputer changes signal into logic value.Dividing potential drop is the setting and design tank voltage or claim that voltage up to standard is relevant of internal simulation comparator reference when.
Single-chip microcomputer can be measured ignition pulse signal and the output of internal simulation comparator with interrupt mode, and light-off period begins, and booster circuit starts, and tank voltage rises.Accumulator voltage arrives the required voltage up to standard of once lighting a fire within the cycle, and analog comparator output logic value changes, and comparator interrupts occuring.The GP5 end of control circuit keeps output low level, and booster circuit is out of service, and tank voltage stops to rise.After time of ignition arrives, GP4 end output high level, ignition switch closing of circuit, accumulator are released energy, and high pressure packet is through external spark plug discharge.This light-off period take time of ignition as the beginning and the end finishes, and is to be the constant pressure point ignition circuit.
Adopt other single chip circuits, only need to replace with the mouth line of identical function the mouth line of PIC12F615.The INT end replaces with the interrupting input mouth, the general delivery outlet of GP4, GP5, and CIN0-selects with simulation comparator input terminal in the sheet, forward and reverse single-chip microcomputer characteristic that occupies.
This figure firing circuit is connected between accumulator and the high pressure packet, and accumulator is the other end ground connection of storage capacitor.Electric current flows to the high pressure packet primary air from accumulator through firing circuit and enters ground during igniting, and the high pressure packet secondary high pressure is through plug ignition, and ignition principle is same as Example 1.But Fig. 2 is commonly used.
The CIN0-port is set to A/D conversion input, can insert simple eliminator in measuring circuit output.After starting, booster circuit continues to monitor tank voltage.Judge behind each EOC and whether arrive voltage up to standard, if do not arrive, restart immediately conversion, behind required voltage, stop booster circuit, tank voltage can be controlled to the constant voltage value.Or measure rate of pressure rise by this case method, press rate of pressure rise control tank voltage to desirable value.
Set up the auxiliary detection circuit, connect the AN0 end, Test Cycle parameter such as coolant water temperature, air fuel ratios etc. expand to operating mode equinoctial point ignition circuit, referring to subsequent instance.
Example 3: firing circuit is repaid in transformer oscillation boosting motorcycle constant voltage and cylinder temperature compensation.With reference to figure 4, control circuit is MC9S08JM60/32 series.Circuit comprises before described each local circuit of tool corresponding function and connects principle.Selected an interrupting input mouth KBIP7, two delivery outlet PTB4, PTB5, an AD conversion input end ADP2 and an analog comparator input end ACMP-.This single-chip microcomputer mouth line aboundresources, each port can need to adjust according to peripheral functionality.Adopt other single chip circuits, with the mouth line replacement of identical function.Adopt transformer oscillating type booster circuit, its output connects accumulator through diode D1.
The PTB5 of control circuit sends high-level control signal, be the control end that resistance arrives booster circuit through drive circuit, booster circuit is vibrated, transformer secondary output induces high pressure, D1 charges to accumulator through diode, and tank voltage raises gradually, until voltage up to standard, through measuring circuit, ACMP-detects signal up to standard.This booster circuit should have enough large output power, makes accumulator obtain voltage up to standard in light-off period.Single-chip microcomputer is after receiving signal up to standard, and the boost conversion that stops booster circuit namely stopping to the accumulator charging, and tank voltage is controlled in the voltage up to standard of design.Single-chip microcomputer connects fire signal with KBIP7, preferably receives compatible signal up to standard from the PBIP7 end with interrupt mode.
The KBIP7 end of single-chip microcomputer connects the TTL trigger signal, and this signal is from the output of fire signal flip flop equipment through the pulse shaping circuit.PTB5 connects the input end of drive circuit, and the output of drive circuit connects the boosting rectifier control end of booster circuit.The PTB5 high level starts booster circuit.Circuit oscillation makes the transistor break-make of connection transformer B1, and this transistor also can adopt Darlington transistor, to increase electric current.The B1 primary current goes out voltage and forms vibration at secondary induction.Secondary output is through diode D1, is storage capacitor charging in it to accumulator.Resistance R 1, diode D2 improves driving, and booster circuit output is strengthened.A kind of optional value is; R1 is 200 Ω, and R2 is 5K Ω, needs to determine after adjusting.
PTB4 tie point ignition circuit.Simulation relatively input end ACMP-connects measuring circuit.All the other connections and working principle are with reference to each example.Booster circuit only has two kinds of states of start and stop, and regulates tank voltage with this.Booster circuit can have more multi-form, and is equipped with corresponding drive circuit.
Adjust sample resistance intrinsic standoff ratio and analog comparator reference potential, the analogue value output of measuring circuit also can directly connect logic level inlet opening such as the interrupting input mouth of control circuit, such as the KBIP6 of this routine single-chip microcomputer.Utilize the digital circuit characteristic of single-chip microcomputer, drive digital circuit with analogue signal.This usage, sometimes feasible, belong to simple applications.This logic level inlet opening, having taken on the analog comparator input end is the function of signal conversion input end.
This example has increased auxiliary detection circuit that the ADP2 mouth connects namely from the coolant water temperature temperature measurement circuit of cylinder temperature.The temperature detecting resistance output voltage signal represents engine cooling water temperature.Control circuit is by the measuring voltage accounting temperature, and according to the required ignition voltage of temperature value correction, the correction rule is followed by the water temperature of engineering experience acquisition-tank voltage curve or form etc.
Meet tank voltage corresponding to the required ignition voltage of operating mode by two part superpositions, i.e. voltage substantially up to standard and offset voltage.Behind signal substantially up to standard, the operation duration that increases booster circuit produces offset voltage.Should set first accumulator voltage substantially up to standard, the ignition energy demand that its value is corresponding lower.The when design of control circuit internal comparator reference potential of measuring circuit sampling dividing potential drop, make accumulator voltage be higher than voltage substantially up to standard after, the comparator exporting change sends signal substantially up to standard, causes that comparator interrupts.After voltage substantially up to standard forms, produce again offset voltage.Its value is calculated according to engineering execution regularity.When temperature sensing circuit detects coolant water temperature when very high, the offset of ignition energy or ignition voltage can reduce, and namely behind signal substantially up to standard, stops earlier the operation of booster circuit, make tank voltage less rising or no longer rising behind signal substantially up to standard, vice versa.Because control circuit before the compensation beginning obtains voltage signal substantially up to standard, tank voltage has reached a certain determined value, provides definite compensation rate according to compensating parameter and compensation model again subsequently, and this compensation has accurately quantitatively meaning.The auxiliary detection circuit that detects compensation factor can have multichannel, and various compensation factors can superposition, and detection mode is not limit.
Substantially voltage swing up to standard is set, needn't consider cell voltage and rotating speed, but the tank voltage climbing speed is relevant with cell voltage, impact compensation degree of accuracy.Compensation also can be considered this influence factor.Tank voltage rises to voltage substantially up to standard needs the time, in the situation that other factors is constant, this time is determined by cell voltage.Measure this time, just the cell voltage compensation factor can be joined in the aforesaid compensation operation, can improve multifactor compensation effect.
Be compensated for as example with coolant water temperature.Enter a new cycle of igniting, start booster circuit and begin the accumulator charging and begin to measure this to reach voltage needed time substantially up to standard, until the moment substantially up to standard arrives, basic reaching standard time measurement is finished.Measure during this time current temperature value, and carry out following a plurality of calculating, purpose is to produce this compensation needed time.
Utilize measured temperature and table look-up or calculate the tank voltage value of required compensation on voltage substantially up to standard basis under the Current Temperatures with formula.Required tank voltage value deducts magnitude of voltage substantially up to standard under the Current Temperatures that its value equals to be determined by engineering experience.Then superposition other factors impact when multifactor compensation.
Utilize claim basic reaching standard time and voltage substantially up to standard to calculate the tank voltage rate of rise voltage duration of charge substantially up to standard the last time of storage, and calculate this compensation needed time with the tank voltage value of this slope and required compensation.
Concluding time cumulative calculation behind signal substantially up to standard produces this basic reaching standard time, for the lower cycle used, and begin the meter subtract this make-up time namely delay time this compensation needed time.
After time-delay is finished, close booster circuit and wait for time of ignition.After arriving, carries out time of ignition igniting.Finish this light-off period.If considering then only needs stop booster circuit after time of ignition arrives receiving fire signal and making advance angle and process the post-compensation time-delay and remain unfulfilled, carry out igniting.Finish this light-off period.
By measuring tank voltage climbing speed control tank voltage, be applicable to the operating mode balance control that tank voltage need to be higher or lower than voltage substantially up to standard.Because be not that the tank voltage of lighting a fire all can experience voltage substantially up to standard, so this control is comprised of two kinds of methods at every turn.
1. utilize voltage measurement up to standard to calculate the method for tank voltage climbing speed (slope): after the cycle begins, to start booster circuit, behind voltage up to standard, the time of measuring its experience, calculate rate of pressure rise in tank voltage.
2. utilize the method for known rate of pressure rise control tank voltage: the cycle begins, accumulate pressure rising time, the Test Cycle parameter, calculate corresponding tank voltage at new duty parameter point, calculate tank voltage from the zero operating mode respective value needed time that is raised to according to rate of pressure rise again, after the time arrives, stop to boost.
Figure 12 is the schematic diagram of temperature correction, with simplifying and illustrated method is explained the principle of operating mode factor compensation energy storage voltage, and further specifies this compensation technique and is different from prior art, has accurately quantitative meaning.
Abscissa is the time, and two y coordinates represent respectively tank voltage and coolant water temperature.Wherein temperature coordinate ascent direction down.When water temperature was 100 ℃, corresponding tank voltage only needed 120v among the figure.The rest may be inferred by analogy, and wherein corresponding ignition voltage is 200v or higher below 0 ℃.Tank voltage ascend curve, its slope are K, curvilinear equation v=kt.Among the figure the numerical value of marking only be used for signal, ascend curve also is reduced to straight line.Practicality should be simplified according to actual curve.
With tank voltage 120V for voltage substantially up to standard.When tank voltage rose to 120v, analog comparator interrupted occuring.If the coolant water temperature side must be 50 ℃, corresponding ignition voltage be 160v still need the compensation 40V, curve is extended down to the Q point from the P point.Point is straight line to curve from initial point to R among the figure.Only need to measure the slope that initial point is ordered to P, be used for calculating tank voltage and compensate to Q point needed time from the P point, this time value of this figure T0=N-M.N wherein, M is that tank voltage rises to 160v and the moment corresponding to 120v.Booster circuit continues this time value of operation, and compensation is finished, and compensation has quantitative performance.Determine slope K by measuring the rise time, also eliminated the device discreteness, the influence factors such as time environment.Than measuring cell voltage compensation slope more accurately and reliably, make ignition energy quantitatively provide more accurate by operating mode.
Constant voltage control and tank voltage are the operating mode balance by operating mode factor quantitative compensation, all belong to the control of ignition energy balance.
Tank voltage quantitative compensation technology comprises the utilization of engineering experience, but can not needing avoid by the actual compensation model that draws of concluding of engineering with described controlling method.
When tank voltage is non-rectilinear when rising, according to tank voltage rising rule compensation after up to standard section, but still be take the quantitative compensation of voltage up to standard as the basis.And still can be with reference to the rate of rise of leading portion, the advantage of performance energy balance technology.Also can design again a measuring circuit, on voltage up to standard or substantially up to standard, produce and interrupt.By aforementioned principles, measure the tank voltage rising parameter between itself and the voltage interruption substantially up to standard, can make compensation quantitatively more accurate.
With measuring the impact of cell voltage balancing battery voltage change on the make-up time, be still available method, method easy to understand, no longer explanation.
The output of measuring circuit is met A/D conversion input end ADP3, the conversion of employing high-speed a/d continues to monitor tank voltage after booster circuit starts, judge behind each EOC and whether arrive voltage up to standard or tank voltage corresponding to duty parameter value, if do not arrive, restart immediately conversion.Under the condition of supporting without working condition measuring, behind voltage up to standard, stop booster circuit, realize constant voltage control.The operating mode balance stops booster circuit after then tank voltage being controlled to voltage corresponding to operating mode, waits for that the rear time of ignition of fire signal and advance angle processing arrives, and implements igniting.
With A/D converted measurement tank voltage, high-speed sampling and conversion must be arranged, and make data smoothing by filtering.But measure the interference that risen by tank voltage.Therefore can use following methods, realize A/D transformation approach measurement control tank voltage.
Cycle starts booster circuit, stops to boost behind certain hour such as 2ms, writes down the corresponding time value of boosting.Start the A/D converted measurement tank voltage value of this moment.Can calculate the tank voltage climbing speed.After obtaining rate of pressure rise, utilize rate of pressure rise control tank voltage, its process is: start booster circuit, during the beginning boost gauge, while Test Cycle parameter is calculated corresponding tank voltage and is also calculated the required rise time of tank voltage, as controlling then with constant voltage value and rate calculations time for constant voltage.After arriving pressure rising time, stop booster circuit.
Example 4: Duty ratio control boost motorcycle constant voltage and multifactor compensation point ignition circuit, with reference to figure 5.Control circuit is MC9S08JM60/32.Adopting field effect transistor to make electronic switch K1 in this routine booster circuit, is duty cycle signals control formula booster circuit, consists of and is connected with reference to Ben Tu and each example of front and back, repeats no more.Drive circuit is mainly a resistance.Increased battery voltage detection, but the auxiliary compensation of State selective measurements cell voltage.
Single-chip microcomputer also may directly drive field effect transistor, can regard the function of drive circuit as and incorporate control circuit or switching circuit into, and circuit arrangement does not become yet.
Adopt the single channel start pulse signal, the interval calculation engine speed of available nearest two pulses.Making advance angle according to rotating speed after this cycle trigger impulse arrives processes.
Prior art is restriction tank voltage peak, from the transformer secondary output tap, and through diode, resistance, voltage-stabiliser tube and electric resistance partial pressure, the interrupting input of dividing point connection control circuit.When the tank voltage rising, the voltage-stabiliser tube change of state, intrinsic standoff ratio changes, and causes that control circuit interrupts, and stops booster circuit.Design each parameter, also can be as the measuring circuit of constant voltage control.The original application of this circuit is as Reliability Measures, is used for restriction accumulator ceiling voltage, and to normal tank voltage without control action.And as constant voltage control, be that the tank voltage with per cycle is controlled on the desirable voltage.This circuit can be used as simple applications, and is not preferred.
Example 5: with reference to figure 6, automobile or multicylinder engine energy balance firing circuit.Control circuit is MC9S08JM60/32.Booster circuit adopts the low voltage drive field effect transistor to make electronic switch or use IGBT, and duty cycle signals control formula is boosted.The auxiliary detection circuit comprises coolant water temperature, throttle opening or position, and diagram is simplified.
The KBIP7 of control circuit is connected other interrupting input mouth lines, and to connect respectively two kinds of fire signals be position signal and angular signal with KBIP6, and the Transistor-Transistor Logic level signal that sends for Hall transducer among the figure is used to indicate engine condition.Employing then can connect control circuit from non-Transistor-Transistor Logic level signal such as the electromagnetic pulse signal of electromagnetic device behind the pulse shaping circuit.Photosignals etc. can connect control circuit through related circuit.PTB5, PTB4F is contact ignition circuit and drive circuit respectively.ACMP-connects the simulation output of measuring circuit.It is coolant water temperature and throttle opening that ADP2, ADP3 connect respectively required duty parameter measuring circuit.
Angular signal, position signal comprise speed of crankshaft and bent axle special position.The two is generally called fire signal, maybe may be combined into one the tunnel.
As constant voltage control, the cycle, the duty cycle signals that PTB4 output is certain, and after the output indication tank voltage of measuring circuit reached the voltage up to standard of design, control circuit stopped the booster circuit operation, waits for time of ignition.
Make operating mode control balancing system, measure each road duty parameter coolant water temperature, throttle opening, the control tank voltage is waited for time of ignition to analog value.
Ignition advance angle is determined by fire signal and best advance angle correction.Control circuit is processed through advance angle after receiving fire signal, in good time igniting.The igniting action makes the firing circuit conducting then by the PTB5 outputs level signals, discharges the accumulator energy, makes the spark plug discharge that connects through distributor.
Each example after all the other explanations see above.
Example 6: with reference to figure 7, special-purpose SCM type motorcycle energy balance firing circuit.Control circuit is special-purpose single-chip microcomputer, has at least general interrupts inlet opening IN1, with the analog quantity input IN2 of analog comparator conversion function, can connect 300V or higher aanalogvoltage.Other has general delivery outlet OUT1, OUT2.
IN1 contact fire trigger signal detects motor motion state information, such as rotating speed, and igniting flag bit etc.OUT2 contact ignition circuit control end.OUT1 connects the booster circuit control end.IN2 connects accumulator, measures its voltage.All mouthfuls line all can be expanded quantity.
The internal structure scheme of control circuit is with reference to the existing circuit of this case.The PIC16F636 single-chip microcomputer is that core is in conjunction with the partial circuit composition control circuit of energy balance firing circuit.The interrupting input end RA2(INT of single-chip microcomputer) output terminal of connection pulse shaping nework, the input end of pulse shaping nework connects the external trigger pulse as IN1.Output terminal RC2 end is as the OUT2 end of control circuit, and RC3 connects the input end of former drive circuit, and former drive circuit output terminal connects the control end of booster circuit as an output terminal OUT1 of control circuit.Single-chip simulation comparator reverse input end C2IN-connects the analog output of original measuring circuit, and the input end of former measuring circuit connects accumulator as the analog input IN2 of control circuit.Increase Chip Microcomputer A/D conversion function and operating mode testing circuit, expand to operating mode equinoctial point ignition circuit.
This programme is simplified the hardware construction of motorcycle energy balance firing circuit, and reliability further improves.Control circuit can comprise application program, makes firing technique of new generation be easy to industrialization.
Each example before all the other explanations are seen.
Each routine local circuit of this case can be transplanted reference accordingly, to different choice or the change of device and local circuit in each example.The merging of local circuit function is shifted out, and the circuit that the interpolation of circuit produces afterwards all belongs to the variation in the scope of the invention.
Claims (9)
1. petrol engine constant pressure control point ignition circuit, comprise control circuit (2), firing circuit (3), accumulator (5), drive circuit (7), booster circuit (8), an output terminal of described control circuit connects the control end of described firing circuit, a power end of this firing circuit connects described accumulator, its another power end ground connection or connection external high pressure bag, another output terminal of described control circuit connects the input end of described drive circuit, the output terminal of this drive circuit connects the control end of described booster circuit, the high-voltage output end of this booster circuit connects the described accumulator that connects, it is characterized in that: also have measuring circuit (6), its input end connects the described accumulator that connects, and its analog signal output connects the signal conversion input end of described control circuit or the input end that the output after data transfer connects described control circuit.
2. a petrol engine constant voltage and operating mode equinoctial point ignition circuit, comprise control circuit (2), firing circuit (3), accumulator (5), drive circuit (7), booster circuit (8), an output terminal of described control circuit connects the control end of described firing circuit, this firing circuit connects described accumulator, another output terminal of described control circuit connects the input end of described drive circuit, the output terminal of this drive circuit connects the control end of described booster circuit, the high-voltage output end of this booster circuit connects the described accumulator that connects, it is characterized in that: also have measuring circuit (6), its input end connects the described accumulator that connects, its analog signal output connects the data transfer input end of described control circuit or the input end that the output of the logical signal after data transfer connects described control circuit, and other has auxiliary detection circuit (9), and its output connects described control circuit.
3. tank voltage constant pressure control method is characterized in that may further comprise the steps:
Start booster circuit, the test constantly tank voltage,
If tank voltage is up to standard, stop booster circuit.
4. the method for tank voltage operating mode balance control, its feature may further comprise the steps:
Start booster circuit, begin from the basic reaching standard time of zero accumulation;
The test constantly tank voltage;
Measure the current working parameter value;
Calculate the magnitude of voltage of the required compensation of tank voltage:
Calculate the tank voltage climbing speed;
Calculate this required make-up time;
If tank voltage reaches voltage substantially up to standard, basic reaching standard time accumulation stops;
Begin by this make-up time time-delay;
If compensation delay is finished, close booster circuit.
5. method that realizes the control of tank voltage operating mode balance according to climbing speed is characterized in that may further comprise the steps:
Starting booster circuit begins accumulator is charged;
The test constantly tank voltage;
Measure the current working parameter value;
Calculate the magnitude of voltage of the required compensation of tank voltage;
Calculate this make-up time;
If tank voltage reaches voltage substantially up to standard, the beginning compensation delay;
If compensation delay is finished, close booster circuit.
6. the controlling method of the optimum Startup time of a booster circuit is characterized in that further comprising the steps of:
Start booster circuit;
Cycle, carry out time-delay, wait for that time-delay finishes;
If time-delay finishes, start booster circuit;
Wait for the up to standard and time of ignition of tank voltage;
If tank voltage is first up to standard, close booster circuit, add unit of delay value;
If time of ignition arrives first, close booster circuit, subtract unit of delay value.
7. utilize voltage measurement up to standard to calculate the method for tank voltage climbing speed, it is characterized in that may further comprise the steps:
Start booster circuit, the beginning timing;
If tank voltage is to voltage up to standard, the time that draws its experience;
Calculate rate of pressure rise.
8. method of measuring the tank voltage climbing speed with the A/D transformation approach is characterized in that may further comprise the steps:
In the cycle, start booster circuit;
Behind certain hour such as 2ms, stop to boost;
Start A/D converted measurement tank voltage value;
Calculate the tank voltage climbing speed.
9. utilize the method for rate of pressure rise control tank voltage, it is characterized in that may further comprise the steps:
Start booster circuit, during the beginning boost gauge;
The Test Cycle parameter is calculated corresponding tank voltage;
Calculate the required rise time of tank voltage;
If the rise time arrives, stop booster circuit.
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| CN201610107883.5A CN105697213A (en) | 2011-07-07 | 2012-07-05 | Gasoline engine energy balance ignition circuit and energy control method |
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| CN201610107883.5A Division CN105697213A (en) | 2011-07-07 | 2012-07-05 | Gasoline engine energy balance ignition circuit and energy control method |
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| CN201610107929.3A Pending CN105673293A (en) | 2011-07-07 | 2012-07-05 | Ignition circuit with optimal advance angle and ignition energy of gasoline engine |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104571239A (en) * | 2013-10-25 | 2015-04-29 | 意法半导体研发(深圳)有限公司 | Device and method for generating DC (direct current) bias |
| CN105134445A (en) * | 2014-05-26 | 2015-12-09 | 曹杨庆 | Ignition energy temperature external compensation ignition circuit of gasoline engine |
| CN105179135A (en) * | 2015-08-18 | 2015-12-23 | 欧阳小录 | Closed loop control method for low-voltage DC CDI igniter |
| CN107291996A (en) * | 2017-05-27 | 2017-10-24 | 南京航空航天大学 | A kind of dynamic disturbances self-learning algorithm of kerosene engine ignition energy |
| CN107539246A (en) * | 2017-09-29 | 2018-01-05 | 重庆大及电子科技有限公司 | A kind of power supply voltage-stabilizing compensator |
| CN111779608A (en) * | 2020-06-30 | 2020-10-16 | 上海交通大学 | High-frequency high-energy spark discharge ignition device |
| CN114992030A (en) * | 2022-07-08 | 2022-09-02 | 广西玉柴机器股份有限公司 | Ignition energy control method for natural gas engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105697213A (en) * | 2011-07-07 | 2016-06-22 | 曹杨庆 | Gasoline engine energy balance ignition circuit and energy control method |
| CN111219281B (en) * | 2019-11-28 | 2021-08-13 | 四川泛华航空仪表电器有限公司 | Automatic discharge voltage detection device for ignition nozzle of engine |
| CN114962114B (en) * | 2022-06-28 | 2023-08-11 | 东风汽车集团股份有限公司 | Control method and control system for ignition energy of engine of vehicle |
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- 2012-07-05 CN CN201610107929.3A patent/CN105673293A/en active Pending
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| JP2010065606A (en) * | 2008-09-10 | 2010-03-25 | Shindengen Electric Mfg Co Ltd | Capacitor charge-discharge type igniter |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104571239A (en) * | 2013-10-25 | 2015-04-29 | 意法半导体研发(深圳)有限公司 | Device and method for generating DC (direct current) bias |
| CN105134445A (en) * | 2014-05-26 | 2015-12-09 | 曹杨庆 | Ignition energy temperature external compensation ignition circuit of gasoline engine |
| CN105179135A (en) * | 2015-08-18 | 2015-12-23 | 欧阳小录 | Closed loop control method for low-voltage DC CDI igniter |
| CN105179135B (en) * | 2015-08-18 | 2017-11-28 | 欧阳小录 | A kind of closed loop control method of low-voltage direct CDI igniters |
| CN107291996A (en) * | 2017-05-27 | 2017-10-24 | 南京航空航天大学 | A kind of dynamic disturbances self-learning algorithm of kerosene engine ignition energy |
| CN107539246A (en) * | 2017-09-29 | 2018-01-05 | 重庆大及电子科技有限公司 | A kind of power supply voltage-stabilizing compensator |
| CN111779608A (en) * | 2020-06-30 | 2020-10-16 | 上海交通大学 | High-frequency high-energy spark discharge ignition device |
| CN114992030A (en) * | 2022-07-08 | 2022-09-02 | 广西玉柴机器股份有限公司 | Ignition energy control method for natural gas engine |
| CN114992030B (en) * | 2022-07-08 | 2023-05-16 | 广西玉柴机器股份有限公司 | Ignition energy control method for natural gas engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102865175B (en) | 2018-06-19 |
| CN202673541U (en) | 2013-01-16 |
| CN105673293A (en) | 2016-06-15 |
| CN105697213A (en) | 2016-06-22 |
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