CN102094740B - Digital direct-current igniter for motorcycle - Google Patents
Digital direct-current igniter for motorcycle Download PDFInfo
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- CN102094740B CN102094740B CN201110009043A CN201110009043A CN102094740B CN 102094740 B CN102094740 B CN 102094740B CN 201110009043 A CN201110009043 A CN 201110009043A CN 201110009043 A CN201110009043 A CN 201110009043A CN 102094740 B CN102094740 B CN 102094740B
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Abstract
The invention relates to an igniter for a motor vehicle, in particular to a digital direct-current igniter for a motorcycle. The digital direct-current igniter comprises a trigger pulse shaping circuit, a negative pulse separation circuit, a positive pulse separation circuit, an ignition advance angle control circuit, a boosting circuit taking a boosting transformer and a switch power tube as cores, and an ignition discharging circuit, and is characterized in that: the ignition advance angle control circuit takes a singlechip processor as a core; and the singlechip processor controls the boosting circuit in a pulse width modulation (PWM) mode. The ignition advance angle control circuit takes a singlechip as a control core, and the ignition advance angle of an engine is subjected to accurate curve control through the quick operation and control functions of the singlechip, so that the engine works in an optimal state; and the PWM control mode is adopted, so that constant high power is output when the boosting transformer is started, and the rise rate of charging voltage of an ignition capacitor is improved.
Description
Technical field
The present invention relates to a kind of Motor Vehicle igniter, be specifically related to a kind of motorcycle digital dc point firearm.
Background technique
The principle of motor cycle ignitor and effect are to receive and store the ignition energy that magnetogenerator or power supply provide; And according to the igniting trigger signal confirm ignition advance angle; At suitable time of ignition, the pulse of abrupt release ignition energy offers the elementary of spark coil; Go out high-tension electricity at the spark coil secondary induction, make spark plug produce discharge spark.The firing mode of motorcycle is varied, and commonly used has three kinds: inductive discharge formula battery ignition mode, capacitor discharge type battery ignition mode, capacitor discharge type magneto ignition mode.Three kinds of firing mode structures are different, can not exchange during use.Inductive discharge formula firing mode is to rely on the primary circuit of cut-off point fire coil to produce the ignition energy pulse, goes out high pressure at the spark coil secondary induction, makes spark plug produce discharge spark.This firing mode is because of adopting triode as switching element, so be also referred to as solid-state ignition system.The maximum operating currenbt of general this ignition system is about 2～2.5 times of common capacitor discharge type battery ignition mode igniter maximum operating currenbt, and ignition energy is all more stable from low speed to high speed.But the spark coil that this firing mode is used is bigger than general point fire coil volume, cost is high, loss is big, heating value is big, the turn ratio is different, not general, and maintenance is inconvenient; Spoilage is higher relatively, thereby not liked by Market Consumer, and use amount relatively seldom.Modern motorcycle major part all is to adopt the capacitor discharge type ignition, is commonly referred to CDI.Capacitive discharge ignition is to rely on capacitor discharge to produce the ignition energy pulse, offers the elementary of spark coil, goes out high-tension electricity at the spark coil secondary induction, makes spark plug produce discharge spark.CD ignition system is different by its power supply, can be divided into capacitor discharge type magneto ignition system and capacitor discharge type battery ignition system.The capacitor discharge type magneto ignition system is simple in structure, cheap, easy to use.But owing to be that magnetogenerator is directly supplied power, it is bigger that the capacitor terminal voltage is influenced by engine speed, and capacitor rechargeable energy under low speed and fast state is not enough, causes ignition energy on the weak side, causes the starting a cold engine difficulty easily, degradation under the high speed performance.For solving electric capacity not enough problem of rechargeable energy when low speed and the high speed, many medium-to-high grade motorcycles adopt the capacitor discharge type battery ignition system (DC-CDI) of direct current supplys.Usually common integrated DC-CDI igniter mainly by trigger impulse shaping circuit, igniting advance angle control circuit, boost, vibrator circuit, discharge ignition circuit four parts form; As shown in Figure 1: behind the pulse shaping nework of trigger impulse through resistance R 3, R4 and capacitor C 5 compositions; The negative impulse split circuit of the positive pulse split circuit of process detector diode D4 and speed-up capacitor C4, resistance R 5 compositions and process detector diode D9 and speed-up capacitor C6, resistance R 14, amplifying tube Q2 composition is delivered to pin 2 and the pin 7 of integrated IC1 respectively again; Positive pulse by pin 2 inputs is opened the IC1 internal switch; Make the CSET quick charge of IC1 pin 11 and pin 12, pin 12 voltage waveform forward position amplitudes are 1/2 of pin 11 voltage waveform forward position amplitudes.After treating that positive pulse finishes, pin 11 slowly to the C9 discharge, makes pin 12 current potentials continue to raise through R16.Under the lower situation of engine speed, pin 13 integral voltages are greater than pin 12 integral voltages, and the inner F3 of IC1 this moment is output as " 0 ".When the PC negative impulse occurs, realize once igniting.When engine speed is higher; The charging time constant of pin 13 is bigger; Integral voltage is less than the integral voltage of pin 12, and at this moment internal comparator BJ2, F3 are output as " 1 ", the effect of process or door; Produce one and the identical triggering pulse of tick-over time at pin 10, but the phase place of this pulse is ahead of the trailing edge Δ θ of PC negative impulse.The size of phase advance angle degree Δ θ is relevant with engine speed, has so promptly realized the tracking engine speed change, adjusts the function of ignition advance angle automatically.Under the effect of pin 7 input negative impulses, pin 13 integrators are discharged rapidly, after the PC negative impulse finished, pin 13 restarted charging, gets into the next circulating sampling cycle, had more than formed igniting and had advanced angle control circuit.Through diode D3 igniting capacitor C 2 is charged simultaneously by boosting of forming of starting resistance R12, feedback resistance R13, capacitor C 12, clamper protection diode D7, D11 and power tube Q7 and boosting transformer T1, vibrator circuit.By igniting capacitor C 2 and clamp diode D8, discharging thyristor Q5; And the discharge ignition circuit of forming with the external spark coil of igniter is when having igniting output control signal (IC1 pin 10 output high level), and in the moment of discharging thyristor Q5 triggering and conducting, capacitor C2 discharges rapidly to the spark coil primary air through controllable silicon anode and negative electrode; Discharge current changes the magnetic flux of spark coil rapidly; On spark coil is secondary, induce high-tension electricity, make spark plug produce spark, the compressed mixed gas explosive burning in the cylinder; Externally do work, realized the ignition function of igniter.Because what adopt is that the analog IC thereby the angular curve control of lighting a fire are not too accurate.In addition; Commonly boost, the vibrator circuit power tube uses is electric current scale-up version triode; Make boost, the output energy was ascending when vibrator circuit started, and made that the output energy of boosting transformer T1 is also ascending, to the charging voltage climbing of igniting capacitor C 2 on average about 24V/ms.Along with engine speed raises; The also corresponding shortening of time effective period of boosting transformer T1 output energy; Starting under the 12000r/min fast state; Charging voltage to igniting capacitor C 2 is also dropped to about 140V by maximum value 240V, and the high speed ignition energy obviously descends, and directly has influence on the fuel economy and the power character of motorcycle.For this reason; General general point firearm strengthens the output power of transformer T1 through the parameter of adjustment boosting transformer T1; But when strengthening transformer T1 output power, causing the moment maximum operating currenbt of power tube Q7 also to increase, is triode owing to what adopt, maximum collector current I
CGenerally little, receive its restriction, promote transformer T1 output power and be and limitedly (generally adopt TIP41C, its collector current I
C=6A).In addition, be that the common integrated IC thereby the angular curve control of lighting a fire are not too accurate owing to what adopt.Ignition advance angle is one of important parameter that influences engine performance, each given engine operation condition all corresponding an optimum igniting advance angle, too early or cross lag ignition, all can directly have influence on the fuel economy and the power character of motorcycle.For this reason, common simulation IC advances the raising that the angle control circuit core has hindered the igniter performance as igniting.Along with development of science and technology, also increasingly high to the motor cycle ignitor performance demands, the conventional dc igniter can't satisfy the requirement of luxury car's high speed performances such as sport car.
Summary of the invention
The object of the invention be to provide for the deficiency that overcomes existing technology a kind of can be with rotating speed March line traffic control, obtain that optimum igniting point, applicability are wide, the motorcycle digital dc point firearm of reliable performance.
In order to address the above problem; The technological scheme that the present invention adopts is: a kind of motorcycle digital dc point firearm; Comprise that trigger impulse shaping circuit, negative impulse split circuit and positive pulse split circuit, igniting advance angle control circuit, be booster circuit and the discharge ignition circuit that core constitutes with boosting transformer and switching power tube; It is characterized in that: it is core with the processor of single chip computer that angle control circuit is advanced in said igniting; The output of negative impulse split circuit and positive pulse split circuit is connected respectively to first and second input ends of processor of single chip computer; The first output terminal control ignition controllable silicon of processor of single chip computer; Said igniting controllable silicon is connected in the discharge loop of discharge ignition circuit, and second output terminal of processor of single chip computer is controlled said switching power tube, and said processor of single chip computer is controlled booster circuit with the PWM mode; Said switching power tube is a low-voltage driving switching mode field effect transistor; It is that said igniting is advanced angle control circuit dc supply and high tension protection circuit are provided that said igniter also is provided with filter circuit of pressure-stabilizing, and voltage sample circuit that the series arm that said high tension protection circuit is in series by resistance, voltage-stabiliser tube constitutes and switch triode and biasing resistor constitute, and said voltage sample circuit is connected across between secondary high-voltage output end of boosting transformer and the power supply ground; The sampling output point of voltage sample circuit is connected with the switch triode base stage; The switch triode emitter is connected with power supply ground, and biasing resistor is connected between the collector electrode and dc power anode of switch triode, and the collector electrode of switch triode is connected with the 3rd input end of processor of single chip computer as the output of high tension protection circuit.
Because it is the control core with the single-chip microcomputer that angle control circuit is advanced in igniting of the present invention, utilize the quick computing and control function of single-chip microcomputer, realize accurate curve controlled to advance angle of engine ignition; Thereby make engine operation in the optimum state, changed that can not can not obtain the optimum igniting point, can not make motor under any speed conditions, can both bring into play the shortcoming of good behaviour firing time with rotating speed March line traffic control in traditional firing mode; And adopt the control mode of PWM, with constant high-power output, improved charging voltage climbing when making the boosting transformer startup igniting electric capacity; Utilize metal-oxide-semiconductor to replace triode as the boost power pipe; Its heating value is low, and has improved the charging voltage climbing to igniting capacitor C 3, on average about 45V/ms; Under motor 12000r/min fast state; The charging voltage of igniting capacitor C 3 also about 200V, has been guaranteed ignition energy, satisfied the requirement of motor the igniter high speed performance; Motorcycle power performance and Economy are significantly improved, and economic speed per hour range expansion is more than 30%; Fuel-economizing 10%-20%; Highest speed improves 10%-25%; Exhaust pollution reduces 10%-30%.
Below in conjunction with accompanying drawing and specific embodiment the present invention is further specified.
Description of drawings
Fig. 1 is existing common simulation dc point firearm circuit theory diagrams.
Fig. 2 is a specific embodiment of the invention circuit theory block diagram.
Fig. 3 is a specific embodiment of the invention circuit theory diagrams.
Embodiment
As shown in Figure 2, motorcycle digital dc point firearm comprises that trigger impulse shaping circuit, negative impulse split circuit and positive pulse split circuit, igniting advance angle control circuit, be booster circuit and the discharge ignition circuit that core constitutes with boosting transformer and switching power tube.As shown in Figure 3; The dc supply that angle control circuit is advanced in igniting is provided by filter circuit of pressure-stabilizing; Filter circuit of pressure-stabilizing is made up of resistance R 3, R6 and capacitor C 5, C7, C9, C10 and diode D4, inductance L 1 and three terminal regulator Q2, has improved the stability of igniter control system power supply and the anti-interference of system.It is core with processor of single chip computer IC2 that angle control circuit is advanced in igniting; The negative impulse split circuit is made up of detector diode D9 and speed-up capacitor C13, resistance R 17, filter capacitor C15, amplifying triode Q4, biasing resistor R7, filter capacitor C16, clamp diode D10; Amplifying triode Q4 selects the NPN type for use; Biasing resistor R7 is connected between the collector electrode and dc power anode of amplifying triode Q4; Amplifying triode Q4 base earth; Filter capacitor C16 and clamp diode D10 are connected in parallel between base stage and the collector electrode, and filter capacitor C15 is connected in parallel between base stage and the emitter, detector diode D9 be connected on the emitter of amplifying triode Q4 after the parallel branch of speed-up capacitor C13 and resistance R 17 is connected; The positive pulse split circuit is made up of detector diode D5 and speed-up capacitor C6, resistance R 5, filter capacitor C14, amplifying triode Q3, biasing resistor R8, filter capacitor C8; Amplifying triode Q3 selects the NPN type for use; Biasing resistor R8 is connected between the collector electrode and dc power anode of amplifying triode Q3; Amplifying triode Q3 grounded-emitter connection; Filter capacitor C8 is connected in parallel between the collector and emitter of amplifying triode Q3, and filter capacitor C14 is connected in parallel between the base stage and emitter of amplifying triode Q3, detector diode D5 be connected on the base stage of amplifying triode Q3 after the parallel branch of speed-up capacitor C6 and resistance R 5 is connected; The trigger impulse shaping circuit that resistance R 15 and resistance R 16 parallel connection backs and capacitor C 12 connect to form; Capacitor C 12 1 ends are connected with power supply ground; The other end PC of trigger impulse shaping circuit constitutes input end, the detector diode D5 anode in said positive pulse split circuit and the negative impulse split circuit be connected on jointly on the other end of capacitor C 12 after detector diode D9 negative electrode is connected.The collector electrode of amplifying triode Q3 is connected with the data input end (as second input end) of processor of single chip computer IC2, and the collector electrode of amplifying triode Q4 is connected with another data input pin (as first input end) of processor of single chip computer IC2.The igniting controllable silicon is connected the discharge loop of the end formation discharge ignition circuit of power supply ground and igniting capacitor C 3; The data output terminal (as first output terminal) of processor of single chip computer IC2 is connected the control ignition controllable silicon with igniting controllable silicon trigger electrode; Said igniting controllable silicon is connected in the discharge loop of discharge ignition circuit; Switching power tube Q7 is connected between the elementary winding and power supply ground of boosting transformer, another data output end of processor of single chip computer IC2 (as second output terminal) control switch power tube Q7, and processor of single chip computer IC2 controls booster circuit with the PWM mode; Switching power tube Q7 selects low-voltage driving switching mode field effect transistor for use, and I
DThe high-current low-voltage driving switch type field effect transistor of>=30A is good.For guarantee point firearm reliably working; Prevent that high pressure output from exceeding setting value; Can also be provided with high tension protection circuit in the utility model; Voltage sample circuit that the series arm that said high tension protection circuit is in series by resistance R 11, voltage-stabiliser tube D6 and resistance R 20 successively constitutes and switch triode Q6 and biasing resistor R10 constitute; Said voltage sample circuit is connected across between the power supply ground of the secondary high-voltage output end of boosting transformer; The tie point of voltage-stabiliser tube D6 anode and resistance R 20 is connected with switch triode Q6 base stage as the sampling output point of voltage sample circuit; Switch triode Q6 emitter is connected with power supply ground, and biasing resistor R10 is connected between the collector electrode and dc power anode of switch triode Q6, and the collector electrode of switch triode Q6 is connected with another data input pin of processor of single chip computer IC2 (as the 3rd input end) as the output of high tension protection circuit.Like this, after exceeding setting value at voltage, the overvoltage signal is delivered to the data input pin of processor of single chip computer IC2 through high tension protection circuit, and processor of single chip computer IC2 closes the PWM output of boosting after to the overvoltage signal response, prevents that high pressure from continuing rising spot failure firearm.
Claims (1)
1. motorcycle digital dc point firearm; Comprise that trigger impulse shaping circuit, negative impulse split circuit and positive pulse split circuit, igniting advance angle control circuit, be booster circuit and the discharge ignition circuit that core constitutes with boosting transformer and switching power tube; It is characterized in that: it is core with the processor of single chip computer that angle control circuit is advanced in said igniting; The output of negative impulse split circuit and positive pulse split circuit is connected respectively to first and second input ends of processor of single chip computer; The first output terminal control ignition controllable silicon of processor of single chip computer; Said igniting controllable silicon is connected in the discharge loop of discharge ignition circuit; Second output terminal of processor of single chip computer is controlled said switching power tube; Said processor of single chip computer is controlled booster circuit with the PWM mode, and said switching power tube is a low-voltage driving switching mode field effect transistor, and it is that said igniting is advanced angle control circuit dc supply and high tension protection circuit are provided that said igniter also is provided with filter circuit of pressure-stabilizing; Voltage sample circuit that the series arm that said high tension protection circuit is in series by resistance, voltage-stabiliser tube constitutes and switch triode and biasing resistor constitute; Said voltage sample circuit is connected across between secondary high-voltage output end of boosting transformer and the power supply ground, and the sampling output point of voltage sample circuit is connected with the switch triode base stage, and the switch triode emitter is connected with power supply ground; Biasing resistor is connected between the collector electrode and dc power anode of switch triode, and the collector electrode of switch triode is connected with the 3rd input end of processor of single chip computer as the output of high tension protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110009043A CN102094740B (en) | 2011-01-17 | 2011-01-17 | Digital direct-current igniter for motorcycle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110009043A CN102094740B (en) | 2011-01-17 | 2011-01-17 | Digital direct-current igniter for motorcycle |
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| CN102094740A CN102094740A (en) | 2011-06-15 |
| CN102094740B true CN102094740B (en) | 2012-08-29 |
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| CN201110009043A Expired - Fee Related CN102094740B (en) | 2011-01-17 | 2011-01-17 | Digital direct-current igniter for motorcycle |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736209A (en) * | 2011-07-07 | 2016-07-06 | 曹杨庆 | Energy battery and working condition factor compensation ignition circuit for gasoline engine |
| CN102979656A (en) * | 2012-12-10 | 2013-03-20 | 南京航空航天大学 | Self-adaptive high energy ignition system |
| CN103670871B (en) * | 2013-12-03 | 2015-10-28 | 天津航空机电有限公司 | A kind of pulse boostering circuit and step-up method |
| CN104269015B (en) * | 2014-09-17 | 2017-01-18 | 杭州普安科技有限公司 | Device for detecting whether power measurement device is attacked or not |
| CN104329201A (en) * | 2014-11-07 | 2015-02-04 | 成都市幻多奇软件有限公司 | Electronic igniter used for automobile |
| CN106321325B (en) * | 2016-08-31 | 2021-08-10 | 浙江锋龙电气股份有限公司 | Ignition method and device capable of adjusting ignition time according to temperature |
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| US4185603A (en) * | 1977-01-08 | 1980-01-29 | Robert Bosch Gmbh | Supply voltage variation compensated ignition system for an internal combustion engine |
| CN2471961Y (en) * | 2001-02-27 | 2002-01-16 | 高世伦 | Microprocessor controlled electric ignitor |
| JP2003049757A (en) * | 2001-08-07 | 2003-02-21 | Kokusan Denki Co Ltd | Capacitor discharge type ignition device for internal combustion engine |
| CN1627618A (en) * | 2003-12-11 | 2005-06-15 | 株式会社电装 | Voltage booster device having voltage-suppressing circuit |
| CN101201037A (en) * | 2007-12-19 | 2008-06-18 | 江南大学 | Motorcycle DC speed-governing igniter |
| CN202001168U (en) * | 2011-01-17 | 2011-10-05 | 吴映波 | Motorcycle digital direct current igniter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2934638Y (en) * | 2006-07-21 | 2007-08-15 | 重庆先锋渝州电器有限公司 | Double core ignitor for motorcycle |
-
2011
- 2011-01-17 CN CN201110009043A patent/CN102094740B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4185603A (en) * | 1977-01-08 | 1980-01-29 | Robert Bosch Gmbh | Supply voltage variation compensated ignition system for an internal combustion engine |
| CN2471961Y (en) * | 2001-02-27 | 2002-01-16 | 高世伦 | Microprocessor controlled electric ignitor |
| JP2003049757A (en) * | 2001-08-07 | 2003-02-21 | Kokusan Denki Co Ltd | Capacitor discharge type ignition device for internal combustion engine |
| CN1627618A (en) * | 2003-12-11 | 2005-06-15 | 株式会社电装 | Voltage booster device having voltage-suppressing circuit |
| CN101201037A (en) * | 2007-12-19 | 2008-06-18 | 江南大学 | Motorcycle DC speed-governing igniter |
| CN202001168U (en) * | 2011-01-17 | 2011-10-05 | 吴映波 | Motorcycle digital direct current igniter |
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| CN102094740A (en) | 2011-06-15 |
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Owner name: CHONGQING UNIVERSITY Free format text: FORMER OWNER: WU YINGBO Effective date: 20141121 Free format text: FORMER OWNER: LAN JILUN Effective date: 20141121 |
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Effective date of registration: 20141121 Address after: 400044 Chongqing street, Shapingba District, No. 174 Patentee after: Chongqing University Address before: 400044 No. 174 Sha Jie street, Shapingba District, Chongqing (Chongqing University Software Institute) Patentee before: Wu Yingbo Patentee before: Lan Jilun |
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