CN202250550U

CN202250550U - Energy balance type charging igniting circuit of igniter of motorcycle

Info

Publication number: CN202250550U
Application number: CN2011202381866U
Authority: CN
Inventors: 曹杨庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-07
Filing date: 2011-07-07
Publication date: 2012-05-30
Anticipated expiration: 2021-07-07

Abstract

The utility model provides an energy balance type charging igniting circuit of an igniter of a motorcycle. The energy balance type charging igniting circuit comprises a pulse input circuit (2), an igniting circuit (3), an energy storing circuit (4) and a control circuit (6), wherein the control circuit can receive the signal of the pulse input circuit, and start the igniting circuit to make the energy storing circuit discharge at proper time. The energy balance type charging igniting circuit is characterized by further comprising a sampling circuit (5), a driving circuit (7) and an adjustable pressurizing circuit (8), wherein the voltage signal of the energy storing circuit is transmitted to the control circuit through the sampling circuit; the control circuit takes an reference on the voltage of the sampling circuit to transmit the control signal to the adjustable pressurizing circuit by the driving circuit; and the adjustable pressurizing circuit outputs the power to the energy storing circuit. In the utility model, the supply and consumption of the balance igniting energy are detected and controlled; energy balancing technique is adopted to the direct-current igniter with good structure; as a result, the igniting voltage can be generally stabled to vary in range of 30 v, and the energy can be saved up to 40%.

Description

Motor cycle ignitor energy balance formula charge point ignition circuit

Technical field

This programme belongs to the internal-combustion engine ignition technical field, relates in particular to the motorcycle DC firing circuit.

Background technique

Igniter has important control action to motorcycle engine, from power to motorcycle, and the pursuit of efficient and emission performance, traditional interchange igniter is substituted by the dc point firearm more and more.

The multiple dc point firearm that is constituted or be combined with single-chip microcomputer by the conditional electronic circuit has appearred at present.The dc point firearm need raise the DC low-voltage of battery through DC voltage booster circuit and be dc high voltage, and to accumulator energy is provided.The size of ignition energy is reflected on the voltage of accumulator, needs before igniting, to make it reach the required value of once lighting a fire.Too high or too lowly all can influence ignition performance, make the vehicle performance variation, waste energy simultaneously, lose battery.The influence of the state of engine speed or equipment (battery) is to the demand and the providing capability of ignition energy, the output power of energy supplier DC voltage booster circuit or weekly phase output energy should regulate according to demand.This programme is referred to as the energy balance technology or claims energy balance, and promptly the phase rechargeable energy balances each other with the required target energy of igniting weekly.But up to now; Disclose or practical dc point firearm; No matter whether be combined with single-chip microcomputer, the igniter DC voltage booster circuit, its output power or weekly the ignition energy imbalance that all do not cause of phase output energy according to engine speed or equipment (battery) change of state make adjusting.As: document CN200620109862.9, CN200820081415.6, practical device see each motorcycle enterprise product.This ignition energy and actual ignition institute energy requirement that phase weekly of existing dc point firearm is produced is often located the uneven energy dissipation that also generally causes, and ignition voltage has up to the fluctuation more than the 60V simultaneously.

Summary of the invention

To specific making part, the ignition energy of DC ignition road single production is by rotating speed, the working state of DC voltage booster circuit and battery status decision.When engine speed was high, the igniting density needed 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 booster circuit phase output energy of providing promptly for each igniting weekly will descend.General dc point firearm all is nominally at cell voltage 9-16v and 800-8, in the time of 000 rev/min or bigger excursion can normal ignition.Therefore, for guaranteeing still enough ignition energies to be provided under the adverse condition, it is bigger that the output power of DC voltage booster circuit must be designed to be, to satisfy the ignition energy requirement under the high rotating speed adverse condition of low voltage.And when motorcycle battery be in 12V (normality) or more than, rotating speed is in 4,000 rev/mins (normalities) or when lower, the just inevitable significantly higher rational ignition energy of DC voltage booster circuit output energy needs.This shows, as not doing online adjusting according to car load equipment and running state, under non-exceedingly difficult condition the running parameter of booster circuit; Its output power is bigger than normal, and the energy of output can obviously need empty power consumption pond energy more than igniting; Often cause power shortage, this is that existing technology is inevitable.Simultaneously, the supply and demand of energy can not be mated under variable working condition, and harmonious this important indicator of ignition voltage is descended, and has also influenced dc point firearm performance.This state of the art has seriously restricted the application of dc point firearm, also is unfavorable for the raising of motorcycle overall technology.

This programme mainly solves existing motorcycle ignition energy and does not match and make the power consumption of dc point firearm big, possibly cause motorcycle storage battery power shortage and ignition voltage unbalanced two than key technical problem, reduce unnecessary energy consumption and keep ignition voltage constant.As previously mentioned, this programme belongs to the internal-combustion engine ignition technical field, only is that background is introduced with the motorcycle, just in order to narrate conveniently, and is not intended to limit its related scope.

With the magnetogenerator period of rotation is that light-off period is the cycle, one by one providing with demand of ignition energy is made Balance Control, claims energy balance.The circuit composition proposal is seen Fig. 1, comprises pulse input circuit, firing circuit; Accumulator, sample circuit, control circuit; Drive circuit, functional circuits such as adjustable booster circuit, wherein control circuit obtains the motion state information of motor and magnetogenerator from pulse input circuit; The control ignition circuit makes the accumulator discharge, to high pressure packet contact output current, implements igniting.Ignition energy is measured the control signal of boosting that accumulator voltage and output according to this have dutycycle by control circuit through sample circuit, controls the running state of adjustable booster circuit through drive circuit, exports to accumulator.Accumulator voltage can detect and be used for control effectively; This based on: 1. accumulator voltage accessible peak in the cycle has all reflected output of DC voltage booster circuit energy and ignition energy demand matching status not only on the whole but also in each charge cycle exactly.Be lower than requirement like this magnitude of voltage, just show that the output of DC voltage booster circuit energy is lower than the ignition energy demand, vice versa.2. the accumulator voltage high speed changes, but can after dividing potential drop, enough accurately and reliably detected by computer.These 2 have been found that checking in this case forming process, and become the basis of Partial Feature.As previously mentioned; The ignition energy of dc point firearm is controlledly provided by DC voltage booster circuit; For realizing output of DC voltage booster circuit energy and ignition energy demand coupling; The all in check DC voltage booster circuit of parameter of being furnished with a kind of start and stop and each converted-wave, promptly alleged adjustable booster circuit.Dispose sample circuit in addition, accumulator voltage is constituted the dividing potential drop sampling, after analog comparator converts switching value into, export to single-chip microcomputer by two resistance.Adjustable booster circuit energy output with the flow process of ignition energy demand balance coupling is: single-chip microcomputer detects accumulator voltage initial the continuing of each charge cycle through sample circuit; Once sampled value reaches the threshold value of setting or the logic level of setting; One-chip computer stops the energy output of DC boosting conversion promptly stopping this circuit of this cycle promptly from mouth line output control signal.And reach the thresholding of setting or the logic level of setting if finish sampled value not occur at whole charge cycle or near charge cycle, explain that this energy output of DC voltage booster circuit possibly be lower than the igniting demand.DC voltage booster circuit is because of expire cycle or approaching full cycling; Control circuit is difficult increase should move duration in the circuit period; Just increase unit of dutycycle of boost conversion waveform, the output of DC voltage booster circuit periodical energy is increased, tend to balance with the igniting demand.And if the threshold value of setting or the logic level of setting reach in charge cycle too early; As early to the cycle 1/4 (with design and produce relevant); Explain that the available output of DC voltage booster circuit periodical energy is more greater than the igniting demand, single-chip microcomputer can reduce unit of dutycycle of boost conversion waveform, and purpose is to make voltage up converting circuit be operated in the center of rated power as far as possible; Keep its high conversion rate; This process reaches energy-conservation purpose except keeping energy balance, has realized that also another important goal is that ignition voltage is balanced.

Analyze for simplifying, the institute's energy requirement of at every turn lighting a fire can be thought necessarily, all from accumulator.If can make the two coupling, be energy-conservation, the state of equilibrium of constant voltage.The output of decision DC voltage booster circuit periodical energy mainly is that duty is when exported duration except that the factor of inconvenience control.This programme has reached Expected Results through detecting and output of control balance and consumption.Adopt the energy balance technology to making good dc point firearm, at cell voltage 9-16v, rotating speed 800-8; Ignition voltage keeps setting value in 000 rev/min of scope; Deviation+/-15V in, to 12V, 4; 000 rev/min normality, 40% cycle ends the output of DC voltage booster circuit energy in advance when accumulator voltage is up to standard.Rotating speed descends then cut-off time in advance, and rotating speed improves that then cut-off time is delayed.Make ignition voltage be stabilized in the wave range of 30v generally, maximum economize on electricity 40% has changed the more particularly unbalanced significant drawback of ignition voltage of existing dc point firearm energy consumption, makes the motorcycle ignition technology that important substantial progress arranged.This programme be igniter more complicated adjusting prepared key means, the ignition voltage regulation technology required like multifactor adjusting.The dc point firearm of different designs production technique, These parameters can be variant.

Description of drawings

Fig. 1 is the scheme sketch

Fig. 2 is the circuit diagram of instance 1

Fig. 3 is the circuit diagram of instance 2

Fig. 4 is the circuit diagram of instance 3

Fig. 5 is pulse input circuit figure

Fig. 6 is under the different state of equilibrium, changes the operation duration and makes energy balance each parameter of control or signal sequence schematic representation

Fig. 7 is under the different state of equilibrium, changes duty and likens energy balance each parameter of control or signal sequence schematic representation to.

Embodiment

Instance 1: see Fig. 2; Pulse input circuit (2) is accepted the trigger impulse of external connection end, and this signal is from magnetogenerator, and single-chip microcomputer is accepted the start pulse signal through the shaping processing of pulse input circuit (2) output as control circuit (6); After doing the advance angle processing; Control ignition circuit (3) makes accumulator (4) discharge in good time, and to external high pressure packet output current, implements igniting.Single-chip microcomputer is done to measure to the sample circuit (5) of reflection accumulator (4) voltage and is controlled the boost conversion of adjustable booster circuit (8) and to the accumulator charging, form the tank voltage closed loop control through drive circuit (7) according to measured value.Pulse input circuit (2) wherein, firing circuit (3), accumulator (4), control circuit (6) they are that single-chip microcomputer all adopts 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.Accumulator mainly is an electric capacity, and described accumulator voltage or tank voltage also are interpreted as the voltage of this electric capacity.Single-chip microcomputer adopts PIC12F615.GP4 drive ignition circuit.GP5 controls boost conversion, and available its universaling I/O port function output control waveform makes an adjustable road of boosting produce rechargeable electrical energy.Sample circuit needs an analog comparator, single-chip microcomputer much commonly used all in set inside analog comparator, and have the internal programmable reference voltage, this routine PIC12F615 is exactly this type.It is GP1 that the partial pressure value of the prime bleeder circuit of sample circuit is outputed to the analog comparator negative terminal, suitably can realize comparator function after the programming to this comparator, has comparator reference voltage to use in the single-chip microcomputer.Among Fig. 2, the frame line of sample circuit is that analog comparator puts under in it with single-chip microcomputer GP1 mouth, and it is PIC12F615 that this analog comparator is integrated in control circuit (6), but by this case logic, belongs to sample circuit (5) again, takes on analog comparator circuit (52).Fig. 5 is the structure of pulse input circuit, is applicable to each example, has marked the figure number and the corresponding single-chip microcomputer mouth wire size that connect each figure among the figure.This routine circuit passes to a pair of inlet opening line GP0 of single-chip microcomputer, GP2 with the positive and negative half-wave of magneto ignition pulse after shaping.In addition, the partial pressure value of the prime bleeder circuit of sample circuit also is output to analog comparator anode GP0, is about to GP0 and the GP1 exchange of Fig. 2, and in fact, the output logic of comparator is programmable.

The pulse input circuit principle is simple, and various form can be arranged, and single-chip microcomputer can be accepted its signal with interruption or inquiry or hybrid mode.This circuit plays a part to transmit motorcycle engine and magnetogenerator motion state information in this programme, and the analysis and judgement of information is accomplished by single-chip microcomputer, even so possible increase and decrease of variation development connection mouth line of the compatible pulse input circuit of present technique scheme.Be provided with the 5V power circuit and give each circuitry needed power supply (omission).

The control signal of boosting that single-chip microcomputer sends is control end or the base stage that resistance R 2 arrives electronic switch TIP122 through drive circuit; Make TIP122 that battery current is intermittently connected the elementary of transformer B1; Electric current is flowed into by power input end or the title collector electrode of TIP122, flows to the elementary of transformer B1 from its power take-off or title emitter.The secondary induction of transformer B1 goes out high-tension electricity and outputs to accumulator through diode D1, sets up ignition voltage above that.

Single-chip microcomputer needs before each charge cycle sampled value reaches the setting thresholding or sets logic level, to continue to carry out through the detection of sample circuit to storage capacitor voltage, and regulates and control DC voltage booster circuit output immediately according to sampled value.Therefore, this example adopts the monitoring of comparator interrupt mode, also can adopt inquiry mode, but needs certain art of programming, so that response in time.Single-chip microcomputer should be selected the fast single-chip microcomputer of execution speed.As adopt the AD conversion mouth of single-chip microcomputer to detect sampling voltage, and the speed of AD conversion should be enough high, makes adjustment timely, when adopting analog amount to detect to sample circuit, and the analog comparator of sample circuit optional (instance 4).

Once sampled value reaches the required level threshold values that design is confirmed, one-chip computer promptly changes the output control signal from the mouth line that connects drive circuit, stops the energy output that controlled boost conversion promptly stops this circuit of this cycle.And as if the threshold value that does not occur sampled value high level or setting at whole charge cycle or near the end of term in week; Explain that this energy output of controlled booster circuit possibly be lower than the igniting demand; Controlled booster circuit is because of expire the cycle or closely expire cycling, and control circuit is difficult to increase the cycle interior operation duration of this circuit, just increases least unit of dutycycle of boost conversion waveform; Controlled booster circuit periodical energy output is increased, tend to balance with the igniting demand.And if the threshold value of sampled value high level or setting reaches in charge cycle too early; As early to the cycle 1/4 (with design and produce relevant); It is more to explain that the available output of DC voltage booster circuit periodical energy rises greater than the igniting demand, and single-chip microcomputer can reduce least unit of dutycycle of boost conversion waveform, and purpose is to make voltage up converting circuit be operated in the center of rated power as far as possible; Keep its high conversion rate; This process reaches energy-conservation purpose except keeping energy balance, has realized that also ignition voltage is balanced.Fig. 6 is under the different state of equilibrium, changes the operation duration and makes energy balance each parameter of control or signal sequence schematic representation.The operating mode of adjustable booster circuit is influenced by rotating speed or battery, and the charging pulse amplitude can change shown in its open circuit output promptly, to accumulator charging rate also respective change.A arranged side by side, B, the little figure of C three width of cloth representes respectively under the different-energy state of equilibrium, in the energy balance process, the sequential of each parameter or signal.Abscissa is the magnetogenerator angle of rotation, representes with r, and y coordinate is a 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 setting threshold level 2.5V, and corresponding magnetogenerator corner ra, rb; Rc because of state of equilibrium is different, representes under the different charging rates; The work duration of adjustable booster circuit is different, and all promptly out of service after the accumulator target voltage values is the 200V arrival in this legend, realizes energy-conservation constant with ignition voltage.Arrow is upwards represented; Accumulator voltage makes the process that self stops to rise through a series of feedback after setting value: raise at accumulator voltage, make sampling voltage to the threshold values of setting promptly scheme in behind the target 2.5V of institute; The control signal of boosting of single-chip microcomputer becomes zero; Cause adjustable booster circuit and stop transport, charging pulse disappears, and accumulator voltage stops to rise.After treating that single-chip microcomputer sends ignition control signal, the accumulator energy discharges, and loss of voltage gets into next light-off period.Fig. 7 is under the different state of equilibrium, changes duty and likens energy balance each parameter of control or signal sequence schematic representation to.Under the different state of equilibrium, 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, C reduces or has improved dutycycle than A, makes possible the departing from of accumulator voltage be able to compensation.All the other explain roughly the same Fig. 6.Fig. 6, numerical value that Fig. 7 marks only are used for illustrating, and non-quantitation.

Instance 2: with reference to figure 3, compare with instance 1, the built-in comparator circuit principle of single-chip microcomputer EM78P458 is different.This example is CIN-configuration comparator reference voltage 2.5V at P55, and P56 is the dividing potential drop of CIN+ input sampling circuit to accumulator.When sampled value greater than reference voltage, can cause the inner comparator of single-chip microcomputer to interrupt.Carry out the control identical with routine 1 later on, other principles are indiscriminately imitated instance 1.The frame line of sample circuit is with single-chip microcomputer P55, and the P56 mouth is that analog comparator puts under in it, and this analog comparator adheres to control circuit (6) and sample circuit (5) simultaneously separately, and physically this comparator is positioned at single-chip microcomputer EM78P458, belongs to sample circuit in logic again.P67 control ignition, P52 controlling and driving circuit and adjustable booster circuit.The pulse input is by P50, and P51 receives, referring to Fig. 5.

Instance 3: see Fig. 4, compare with instance 1 that drive circuit has increased resistance R 1, NPN triode T1 to the sampling of the primary current of transformer B1 and feed back to driving, is restricted the maximum current of primary.

The also integrated analog comparator in AT89C2051 inside; But this example is as the application example of external simulation comparator; Other puts analog comparator and accepts the interior dividing potential drop output to accumulator voltage of sample circuit, compares with reference edge 2.5V, and the variation of its output logic value causes the single-chip microcomputer internal interrupt.The control procedure that causes is with identical at preceding instance.Fig. 5 is its pulse input circuit.Fig. 4 (P3.2) is pointed in two tunnel outputs among the figure, (P3.3).

Instance 4: this joint is introduced two special sample circuits and monitoring: utilize the AD conversion function of single-chip microcomputer to detect sample circuit and not only do not had analog comparator but also do not had the circuit under the situation of AD conversion function at single-chip microcomputer.

Some single-chip microcomputer possibly only have the AD conversion function and not have analog comparator.Use Fig. 2, the GP1 of PIC12F615 be changed to AD conversion mouthful, in the sample circuit to direct this mouthful line of the dividing potential drop output of accumulator voltage; When the AD conversion is interrupted taking place, read, from the angle of energy balance detection; Belong to inquiry mode, need in the cycle, tank voltage constantly repeat before reaching requirement, until reaching setting value; Closed loop control is implemented in the output of adjustment GP5.

Claims

1. OnePlant motor cycle ignitor energy balance formula charge point ignition circuit, comprise pulse input circuit (2), firing circuit (3); Accumulator (4); Control circuit (6), said control circuit are accepted the signal of said pulse input circuit and start said firing circuit in good time to make said accumulator discharge, it is characterized in that: also have sample circuit (5); Drive circuit (7); Adjustable booster circuit (8), the information of voltage of said accumulator arrives said control circuit through said sample circuit, and this control circuit is with reference to the voltage of said sample circuit; Control signal is sent to said adjustable booster circuit through said drive circuit, and this is adjustable, and booster circuit output electric energy arrives said accumulator.

2. motor cycle ignitor energy balance formula charge point ignition circuit according to claim 1 is characterized in that, said sample circuit (5) comprises bleeder circuit (51) that is used to sample and the analog comparator circuit (52) that is used to export conversion.

3. motor cycle ignitor energy balance formula charge point ignition circuit according to claim 2 is characterized in that, said sample circuit (5), and its said bleeder circuit (51) adopts electric resistance partial pressure.

4. motor cycle ignitor energy balance formula charge point ignition circuit according to claim 2 is characterized in that, said sample circuit (5), and its said analog comparator circuit (52) comprises a single supply operational amplifier.