CN101782038B - Pulse separating circuit for motorcycle igniter - Google Patents
Pulse separating circuit for motorcycle igniter Download PDFInfo
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- CN101782038B CN101782038B CN2009101918128A CN200910191812A CN101782038B CN 101782038 B CN101782038 B CN 101782038B CN 2009101918128 A CN2009101918128 A CN 2009101918128A CN 200910191812 A CN200910191812 A CN 200910191812A CN 101782038 B CN101782038 B CN 101782038B
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Abstract
The invention discloses a pulse separating circuit for a motorcycle igniter and relates to a motorcycle ignition circuit. The pulse separating circuit mainly comprises a positive pulse processing circuit, a negative pulse processing circuit, two pulse comparison amplifiers, two Schmidt triggers and a discharge circuit. In the pulse separating circuit for the motorcycle igniter, the pulse separating circuit and a motorcycle automatic angle-advancing control circuit are integrated into the same chip, so that the problems of too many peripheral elements, inconvenient debugging, high cost and the like in the universal ignition circuit are solved. Furthermore, in the circuit, pulse separation is realized by adopting the two-stage amplifiers so that the minimum rotary speed (less than 50 r/min) of motorcycle ignition is greatly reduced.
Description
Technical field
The present invention relates to electronic technology field, relate in particular to a kind of motor cycle ignitor.
Background technique
Igniter is the critical component in the motorcycle, and the cruising of motorcycle and driver's personal safety are had important effect.Pulse-separating circuit is the circuit that the positive negative triggering pulse of igniter is separated into the two-way negative-going pulse, and the pulse signal after the separation can advance the angle control chip automatically for motorcycle to be used to realize that motorcycle advances the angle point fire automatically.Traditional motorcycle adopts triode to carry out pulse separation as shown in Figure 1 with pulse-separating circuit.But its pulse-separating circuit all adopts resolution element to realize, make that the application circuit peripheral cell of motor cycle ignitor is too much, be inconvenient to debug and cost also higher, and owing to adopt triode to carry out pulse separation, the conducting voltage of triode has been limited in the minimum radius of positive negative triggering pulse about 0.7V, has limited the minimum speed (greater than 100r/min) of motorcycle ignition.
Patent documentation 1 (patent No.: CN 101169093, patent name: a kind of motorcycle in-coming angle igniter dedicated integrated circuit and trigger input circuit) has also proposed a kind of pulse separation technique, as shown in Figure 1.Patent documentation 1 described pulse parallel circuit has realized aligning the separation of negative triggering pulse, and pulsed triggering circuit and motorcycle are advanced angle control circuit automatically to be integrated in in the chip piece, reduced the peripheral cell of motor cycle ignitor, but the shortcoming through it is: because this circuit adopts simple metal-oxide-semiconductor to realize pulse separation, the conducting voltage of metal-oxide-semiconductor has been limited to the minimum radius of positive negative triggering pulse about 0.8V, so limited the minimum speed (greater than 100r/min) of motorcycle ignition widely.
Summary of the invention
Technical problem to be solved by this invention is to invent a kind of pulse separating circuit for motorcycle igniter, by being advanced angle control circuit automatically, pulse-separating circuit and motorcycle be integrated in on the chip piece, solved well the peripheral cell that exists in the universe point ignition circuit too much, inconvenient debugging, cost be too high, and the problem that reduces the minimum speed of motorcycle ignition.
The present invention solves the problems of the technologies described above the technological scheme of being taked and is that a kind of pulse separating circuit for motorcycle igniter of the present invention comprises: direct impulse processing circuit, negative-going pulse processing circuit, pulse comparison amplifier Amp1, pulse comparison amplifier Amp2, scmitt trigger circuit SMIT1 and SMIT2, path Bypass releases
The input end of direct impulse processing circuit is IN1, and its output termination pulse ratio is than the negative input inn of amplifier Amp1; The input end of negative-going pulse processing circuit is IN2, and its output termination pulse ratio is than the positive input inp of amplifier Amp2; The positive input ground connection of pulse comparison amplifier Amp1, the input end of its output termination scmitt trigger circuit SMIT1; The negative input ground connection of pulse comparison amplifier Amp2, the input end of output termination scmitt trigger circuit SMIT2; Output terminal out1, the out2 of scmitt trigger circuit SMIT1 and SMIT2 advances two input ends of angle control circuit automatically as motorcycle; The path Bypass that releases, its positive input connects power Vcc, negative input ground connection.
Described direct impulse processing circuit comprises: the diode D1 that makes input protection circuit; diode D2; resistance R 1; resistance R 2 and an enhancement mode PMOS pipe MP1; wherein; D1; the forward end of D2 links to each other with the two ends of R1 respectively; D1; the negative sense termination power Vcc of D2; the forward end of D1 is as the input end IN1 of direct impulse processing circuit; the forward end of D2 links to each other with an end of resistance R 2; the other end of R2 is direct impulse processing circuit output terminal Out; the drain electrode of MP1 links to each other with input end In; the grounded-grid of MP1; the source ground of MP1, the substrate of MP1 connects power Vcc.
Described negative-going pulse processing circuit comprises: diode D3, diode D4, resistance R 3, resistance R 4 and a NMOS pipe MN1 of making input protection circuit; wherein; the forward end of D3, D4 links to each other with the two ends of resistance R 3 respectively; the negative end negative pole of D3, D4 connects power Vcc; the forward end of D4 links to each other with the end of R4; the other end of R4 links to each other with output Out; the forward end of D3 links to each other with input In; input end IN2 as the negative-going pulse processing circuit; the drain electrode of MN1 links to each other with input In; its grid, source electrode link to each other with ground, its substrate ground connection.
Described pulse comparison amplifier Amp1, Amp2 have identical structure, constitute by AB class cmos amplifier, comprising:
PMOS pipe MP6, PMOS pipe MP7, PMOS pipe MP8, PMOS pipe MP9, PMOS pipe MP10 and NMOS pipe MN6, NMOS pipe MN7, NMOS pipe MN8, NMOS pipe MN9, wherein the grid of MP6 is as the positive input inp of Amp2, the grid of MP7 is as the negative input inn of Amp1, the source electrode of MP6 and MP7 links to each other, and link to each other with the drain electrode of MP8, the grid of MP8 meets bias voltage V
Bias, the source electrode of MP8 meets power supply V
CC, the grid of MN6 links to each other with drain electrode, and joins with the drain electrode of MP6, the grid of MN7 links to each other with drain electrode, and joins the source ground of MN6 and MN7 with the drain electrode of MP7, the grid of MN8 links to each other with the grid of MN7, the grid of MN9 links to each other with the grid of MN6, the source ground of MN8 and MN9, and the grid of MP9 links to each other with drain electrode, and join with the drain electrode of MN8, the grid of MP10 links to each other with the grid of MP9, and the drain electrode of MP10 and the drain electrode of MN9 are joined, and the source electrode of MP9 and MP10 meets V
CC, the substrate of MP6, MP7, MP8, MP9, MP10 all meets power supply V
CC, the substrate ground connection of MN6, MN7, MN8, MN9, the drain electrode of MN9 is as the output terminal out of pulse comparison amplifier.
Described PMOS pipe MP6 and PMOS pipe MP7 are of different sizes, and the breadth length ratio of MP6 is 15/5, and the breadth length ratio of MP7 is 20/5.
Described scmitt trigger circuit SMIT1 has identical structure with SMIT2, and can adopt custom circuit.
The path Bypass that releases between described power supply and the ground is a custom circuit.
Pulse separating circuit for motorcycle igniter of the present invention advances angle control circuit automatically with pulse-separating circuit and motorcycle and is integrated in on the chip piece, solved effectively the peripheral cell that exists in the universe point ignition circuit too much, inconvenient debugging, cost cross problems such as height, and, reduced the minimum speed (less than 50r/min) of motorcycle ignition widely because circuit of the present invention adopts dual-stage amplifier to realize pulse separation.Pulse-separating circuit of the present invention has the following advantages:
1. integrated shaping pulse triode and amplitude limit Zener diode have been simplified the peripheral applications circuit, have made things convenient for the debugging of circuit, and the reliability of circuit is improved, and cost reduces.
2. in circuit of the present invention, the shaping of pulse is amplified by two stage comparator Amp1 and Amp2 realization, amplifies than traditional triode shaping, has faster speed, improves the igniting precision greatly.And, because the upset threshold level of comparator is low to moderate 0.3V, can be with the minimum igniting speed drop of igniter to 50r/min, this can not accomplish for general ignitor circuit.
3. the ESD protection diode that circuit of the present invention is incited somebody to action wherein release path Bypass and each pin integrates, and has guaranteed the whole circuit chip to any static, all possesses the complete path of releasing.Therefore, suppress the damage that magnetogenerator transient current and high voltage ignition etc. may cause internal circuit effectively, thereby improved the reliability of circuit widely.
Description of drawings
The pulse separating circuit for motorcycle igniter schematic diagram of Fig. 1 prior art;
Fig. 2 pulse separating circuit for motorcycle igniter electrical schematic diagram of the present invention;
The application drawing of Fig. 3 pulse separating circuit for motorcycle igniter of the present invention;
Fig. 4 pulse separating circuit for motorcycle igniter of the present invention oscillogram in actual applications;
Fig. 5 direct impulse processing circuit of the present invention electrical schematic diagram;
Fig. 6 negative-going pulse processing circuit of the present invention electrical schematic diagram;
The circuit diagram of Fig. 7 pulse comparison amplifier of the present invention Amp1/Amp2;
Embodiment
Below at accompanying drawing and instantiation enforcement of the present invention is described further.The specific embodiment of the present invention is not limited only to following description, is now further specified in conjunction with the accompanying drawings.
The circuit diagram of the concrete pulse-separating circuit of implementing of the present invention as shown in Figure 2.It is made up of a direct impulse processing circuit, negative-going pulse processing circuit, two pulse comparison amplifier Amp1 and Amp2, two scmitt trigger circuit SMIT1 and SMIT2, the path Bypass that releases.
The input end of direct impulse processing circuit is IN1, and its output termination pulse ratio is than the negative input inn of amplifier Amp1; The input end of negative-going pulse processing circuit is IN2, and its output termination pulse ratio is than the positive input inp of amplifier Amp2; The positive input ground connection of pulse comparison amplifier Amp1, the input end of its output termination scmitt trigger circuit SMIT1; The negative input ground connection of pulse comparison amplifier Amp2, the input end of output termination scmitt trigger circuit SMIT2; Output terminal out1, the out2 of scmitt trigger circuit SMIT1 and SMIT2 advances two input ends of angle control circuit automatically as motorcycle; Out1 and out2 enter motorcycle as trigger impulse and advance the final output in angle control circuit processing back firing pulse OUT automatically.The path Bypass that releases, its positive input connects power Vcc, negative input ground connection.
In the motorcycle cruising process, produce positive and negative two trigger impulses through IN1 and IN2 by inductance coil, direct impulse passes through pulse comparator Amp1 again through direct impulse processing circuit amplitude limit, produce trigger impulse, produce the pulse of a trailing edge at the output terminal of scmitt trigger circuit SMIT1.Negative-going pulse through pulse comparator Amp2, produces trigger impulse through negative-going pulse processing circuit amplitude limit, produces the pulse of a trailing edge at the output terminal of scmitt trigger circuit SMIT2.These two pulses are advanced angle control circuit automatically through motorcycle, further handle producing firing pulse OUT again.
Fig. 3 is the application drawing of pulse separating circuit for motorcycle igniter of the present invention.The PC pulse signal that magnetogenerator produces enters the input end IN1 and the IN2 of pulse-separating circuit through anti-interference RC network R3c in parallel, C3c and R4c, C4c respectively then through the low-pass filter circuit filtering part high-frequency signal of resistance R 1c and capacitor C 1c formation.Compare and enlarge through comparator Amp1 and Amp2 paired pulses again behind the pulse process direct impulse processing circuit of input IN1 and IN2 and the negative-going pulse processing circuit amplitude limit, advance angle control circuit automatically through scmitt trigger circuit input motorcycle again and handle the pulse of final generation control ignition.
Fig. 4 is a pulse separating circuit for motorcycle igniter of the present invention oscillogram in actual applications.Wherein the PC signal is the input pulse signal that changes with the motorcycle rotation speed change that is produced by magnetogenerator, comprise a direct impulse and a negative-going pulse, out1 is respectively the pulse signal that passes through after pulse-separating circuit is separated with out2, and OUT is the ignition pulse signal that motorcycle advances angle control circuit output automatically.The amplitude of PC signal raises with the raising of motorcycle rotating speed, its peak value was about 300mV when the motorcycle rotating speed was 50r/min, its amplitude was about 15V when the motorcycle rotating speed was 5000r/min, direct impulse signal out1 after separating through pulse-separating circuit and negative-going pulse signal out2 and output firing pulse OUT are digital logic level, along with the phase place of motorcycle change in rotational speed OUT can be between out1 and out2 linear change.
Direct impulse processing circuit of the present invention as shown in Figure 5, it is made of routine input electrostatic discharge protective circuit and metal-oxide-semiconductor MP1, MP1 has clamper function and antistatic protection function.Diode D1, D2 are as input protection circuit; the forward end of D1, D2 links to each other with the two ends of resistance R 1 respectively; the negative sense termination power Vcc of D1, D2, the forward end of D1 links to each other with input In, as the input end IN1 of direct impulse processing circuit; the forward end of D2 links to each other with an end of resistance R 2; the other end of R2 connects output terminal Out, and the drain electrode of MP1 links to each other with input end, the grounded-grid of MP1; the source ground of MP1, the substrate of MP1 connects power Vcc.
This circuit provides the function of static protection to internal circuit, simultaneously, also the input trigger impulse is carried out clamper, and the direct impulse of input is by the conducting voltage V of PMOS pipe MP1 clamper to MP1
TPAbout.
The negative-going pulse processing circuit as shown in Figure 6, it belongs to conventional input electrostatic discharge protective circuit.This circuit provides the function of static protection to internal circuit.Diode D3, D4 make input protection circuit; the forward end of D3, D4 links to each other with the two ends of resistance R 3 respectively; the negative end negative pole of D3, D4 connects power Vcc; the forward end of D4 links to each other with the end of R4; the other end of R4 links to each other with output Out, and the forward end of D3 links to each other with input In, and the drain electrode of MN1 links to each other with input In; its grid, source link to each other with ground, its substrate ground connection.
Pulse comparison amplifier Amp1 of the present invention and Amp2 are as shown in Figure 7.Amp1, Amp2 have identical structure, constitute by AB class cmos amplifier, comprise: PMOS pipe MP6, MP7, MP8, MP9, MP10, with NMOS pipe MN6, MN7, MN8, MN9, wherein the grid of MP6 is as positive input inp, and the grid of MP7 is as negative input inn, and the source electrode of MP6 and MP7 links to each other, and link to each other with the drain electrode of MP8, the grid of MP8 meets bias voltage V
Bias, the source electrode of MP8 meets power supply V
CC, the grid of MN6 links to each other with drain electrode, and joins with the drain electrode of MP6, the grid of MN7 links to each other with drain electrode, and joins the source ground of MN6 and MN7 with the drain electrode of MP7, the grid of MN8 links to each other with the grid of MN7, the grid of MN9 links to each other with the grid of MN6, the source ground of MN8 and MN9, and the grid of MP9 links to each other with drain electrode, and join with the drain electrode of MN8, the grid of MP10 links to each other with the grid of MP9, and the drain electrode of MP10 and the drain electrode of MN9 are joined, and the source electrode of MP9 and MP10 meets V
CC, the substrate of MP6, MP7, MP8, MP9, MP10 all meets power supply V
CC, the substrate ground connection of MN6, MN7, MN8, MN9, the drain electrode of MN9 is as the output terminal of pulse comparison amplifier.
Amp1 and Amp2 are on the basis of the dual-stage amplifier of routine, and input difference has been introduced imbalance to MP7 and MP6, and wherein to be of a size of breadth length ratio be W/L=20 μ m/5 μ m to metal-oxide-semiconductor MP7, and it is W/L=15 μ m/5 μ m that MP6 is of a size of breadth length ratio.Between input difference is to MP7 and MP6, introduce and lose partially, thereby the threshold level of amplifier upset is adjusted into 0.3V from about 10mV, also guaranteed at the motorcycle rotating speed lower, still can carry out IGNITION CONTROL when the amplitude of trigger impulse PC is less, thereby improve the minimum fire speed of motorcycle.The positive input ground connection of Amp1, the negative input ground connection of Amp2, direct impulse and negative-going pulse relatively amplify driving back level scmitt trigger circuit through amplifier.
Scmitt trigger circuit SMIT1 of the present invention and SMIT2 can adopt conventional scmitt trigger circuit, and entire circuit is worked to improve antijamming capability.
The path Bypass that releases of the present invention can adopt conventional ESD protection circuit, and Bypass guarantees the integrity of full chip to any electrostatic leakage path, thereby improves the reliability of circuit with the ESD protection diode of each pin.
The basic parameter of the PMOS in the circuit of the present invention, NMOS pipe is:
The threshold voltage V of enhancement mode NMOS pipe
T: 0.45～0.75V, source-drain voltage V
DS〉=18V; The threshold voltage V of enhancement mode PMOS pipe
T:-0.6～-0.8V, source-drain voltage V
DS〉=18V; The gate oxide thickness 45nm of enhancement mode NMOS pipe, PMOS pipe.Manufacturing process is high pressure 3 μ mCMOS technologies.
Claims (6)
1. pulse separating circuit for motorcycle igniter, it is characterized in that, this circuit comprises: direct impulse processing circuit, negative-going pulse processing circuit, pulse comparison amplifier Amp1, pulse comparison amplifier Amp2, scmitt trigger circuit SMIT1 and scmitt trigger circuit SMIT2, path Bypass releases, the input end of direct impulse processing circuit is IN1, and its output termination pulse ratio is than the negative input inn of amplifier Amp1; The input end of negative-going pulse processing circuit is IN2, and its output termination pulse ratio is than the positive input inp of amplifier Amp2; The positive input ground connection of pulse comparison amplifier Amp1, the input end of its output termination scmitt trigger circuit SMIT1; The negative input ground connection of pulse comparison amplifier Amp2, the input end of output termination scmitt trigger circuit SMIT2; The output terminal out1 of scmitt trigger circuit SMIT1 and the output terminal out2 of scmitt trigger circuit SMIT2 advance two input ends of angle control circuit automatically as motorcycle; The positive input of path Bypass of releasing connects power Vcc, negative input ground connection, positive and negative two trigger impulses input IN1 and IN2, the forward trigger impulse is through direct impulse processing circuit amplitude limit, produce trigger impulse through pulse comparison amplifier Amp1 again, the pulse that the output terminal of control scmitt trigger circuit SMIT1 produces a trailing edge; The negative sense trigger impulse is through negative-going pulse processing circuit amplitude limit, through pulse comparator Amp2, produce trigger impulse, the pulse that the output terminal of control scmitt trigger circuit SMIT2 produces a trailing edge, the pulse of two trailing edges is advanced angle control circuit automatically through motorcycle, produces firing pulse OUT.
2. pulse separating circuit for motorcycle igniter according to claim 1; it is characterized in that; described direct impulse processing circuit comprises: diode D1; diode D2 is as input protection circuit; diode D1; the forward end of diode D2 links to each other with the two ends of resistance R 1 respectively; diode D1; the negative sense termination power Vcc of diode D2; the forward end of diode D1 is as the input end IN1 of direct impulse processing circuit; the forward end of diode D2 links to each other with an end of resistance R 2; the other end of resistance R 2 connects output terminal Out; the drain electrode of PMOS pipe MP1 links to each other with input end; grid and the source grounding of PMOS pipe MP1, the substrate of PMOS pipe MP1 connects power Vcc.
3. pulse separating circuit for motorcycle igniter according to claim 1; it is characterized in that; described negative-going pulse processing circuit comprises; diode D3; diode D4 makes input protection circuit; diode D3; the forward end of diode D4 links to each other with the two ends of resistance R 3 respectively; diode D3; the negative sense termination power Vcc of diode D4; the forward end of diode D4 links to each other with an end of resistance R 4; the other end of resistance R 4 links to each other with output terminal Out; the forward end of diode D3 is as the input end IN2 of negative-going pulse processing circuit; the drain electrode of NMOS pipe MN1 links to each other its grid with input end; source electrode links to each other with ground, its substrate ground connection.
4. pulse separating circuit for motorcycle igniter according to claim 1, it is characterized in that, described pulse comparison amplifier Amp1, pulse comparison amplifier Amp2 has identical structure, constitute by AB class cmos amplifier, comprise: PMOS manages MP6, PMOS manages MP7, PMOS manages MP8, PMOS manages MP9, PMOS manages MP10, with NMOS pipe MN6, NMOS manages MN7, NMOS manages MN8, NMOS manages MN9, wherein the grid of PMOS pipe MP6 is as positive input inp, the grid of PMOS pipe MP7 is as negative input inn, PMOS pipe MP6 links to each other with the source electrode of PMOS pipe MP7, and link to each other with the drain electrode of PMOS pipe MP8, the grid that PMOS manages MP8 meets bias voltage V
Bias, the source electrode of PMOS pipe MP8 meets power supply V
CCThe grid of NMOS pipe MN6 links to each other with drain electrode, and join with the drain electrode of PMOS pipe MP6, the grid of NMOS pipe MN7 links to each other with drain electrode, and join with the drain electrode of PMOS pipe MP7, the source ground of NMOS pipe MN6 and NMOS pipe MN7, the grid of NMOS pipe MN8 links to each other with the grid of NMOS pipe MN7, the grid of NMOS pipe MN9 links to each other with the grid of NMOS pipe MN6, the source ground of NMOS pipe MN8 and NMOS pipe MN9, and the grid of PMOS pipe MP9 links to each other with drain electrode, and join with the drain electrode of NMOS pipe MN8, the grid of PMOS pipe MP10 links to each other with the grid of PMOS pipe MP9, and the drain electrode of the drain electrode of PMOS pipe MP10 and NMOS pipe MN9 is joined, and the source electrode of PMOS pipe MP9 and PMOS pipe MP10 meets V
CC, the substrate of PMOS pipe MP6, PMOS pipe MP7, PMOS pipe MP8, PMOS pipe MP9, PMOS pipe MP10 all meets power supply V
CC, the substrate ground connection of NMOS pipe MN6, NMOS pipe MN7, NMOS pipe MN8, NMOS pipe MN9, the drain electrode of NMOS pipe MN9 is as the output terminal of pulse comparison amplifier.
5. pulse separating circuit for motorcycle igniter according to claim 4, it is characterized in that, described PMOS pipe MP6 and PMOS pipe MP7 are of different sizes, the breadth length ratio of PMOS pipe MP6 is 15/5, the breadth length ratio of PMOS pipe MP7 is 20/5, between input difference is to PMOS pipe MP7 and PMOS pipe MP6, introduce and lose partially, the threshold level of amplifier upset is adjusted into 0.3V.
6. according to claim 2 or 3 described pulse separating circuit for motorcycle igniter, it is characterized in that, direct impulse signal out1 after the process pulse-separating circuit is separated and negative-going pulse signal out2 and output firing pulse OUT are digital logic level, along with phase place linear change between out1 and out2 of motorcycle change in rotational speed OUT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101918128A CN101782038B (en) | 2009-12-07 | 2009-12-07 | Pulse separating circuit for motorcycle igniter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101918128A CN101782038B (en) | 2009-12-07 | 2009-12-07 | Pulse separating circuit for motorcycle igniter |
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| Publication Number | Publication Date |
|---|---|
| CN101782038A CN101782038A (en) | 2010-07-21 |
| CN101782038B true CN101782038B (en) | 2011-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101918128A Expired - Fee Related CN101782038B (en) | 2009-12-07 | 2009-12-07 | Pulse separating circuit for motorcycle igniter |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6848097B2 (en) * | 2018-01-23 | 2021-03-24 | 日立Astemo株式会社 | Internal combustion engine ignition device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3673999A (en) * | 1970-08-24 | 1972-07-04 | Braun Anton | Electrical apparatus for initiating combustion in free piston engines |
| CN1637278A (en) * | 2003-12-24 | 2005-07-13 | 三菱电机株式会社 | Ignition control apparatus for internal combustion engine |
| CN1924345A (en) * | 2005-08-19 | 2007-03-07 | 樊荣群 | Intelligent entrance angle speed-limiting igniter |
| CN101021195A (en) * | 2007-03-09 | 2007-08-22 | 江南大学 | Intelligent motorcycle speed-limiting ignitor |
-
2009
- 2009-12-07 CN CN2009101918128A patent/CN101782038B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3673999A (en) * | 1970-08-24 | 1972-07-04 | Braun Anton | Electrical apparatus for initiating combustion in free piston engines |
| CN1637278A (en) * | 2003-12-24 | 2005-07-13 | 三菱电机株式会社 | Ignition control apparatus for internal combustion engine |
| CN1924345A (en) * | 2005-08-19 | 2007-03-07 | 樊荣群 | Intelligent entrance angle speed-limiting igniter |
| CN101021195A (en) * | 2007-03-09 | 2007-08-22 | 江南大学 | Intelligent motorcycle speed-limiting ignitor |
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| CN101782038A (en) | 2010-07-21 |
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Granted publication date: 20110824 Termination date: 20131207 |