WO2005075817A1 - コンデンサ容量式点火装置 - Google Patents
コンデンサ容量式点火装置 Download PDFInfo
- Publication number
- WO2005075817A1 WO2005075817A1 PCT/JP2005/001677 JP2005001677W WO2005075817A1 WO 2005075817 A1 WO2005075817 A1 WO 2005075817A1 JP 2005001677 W JP2005001677 W JP 2005001677W WO 2005075817 A1 WO2005075817 A1 WO 2005075817A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- voltage
- ignition
- control circuit
- secondary winding
- timing control
- Prior art date
Links
Classifications
-
- 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
- F02P3/00—Other installations
- F02P3/06—Other installations having capacitive energy storage
- F02P3/08—Layout of circuits
- F02P3/0876—Layout of circuits the storage capacitor being charged by means of an energy converter (DC-DC converter) or of an intermediate storage inductance
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
Definitions
- the present invention relates to a capacitor-type ignition device.
- DCCDI DC-DC converter
- a power supply voltage is boosted by a DC-DC converter and supplied to a CDI-type ignition device.
- a battery is used as the power supply voltage.
- the DC-DC converter transformer is provided with a winding separate from the normal power supply winding (for charging the ignition capacitor) so that the voltage on the primary winding is low! (See, for example, Patent Document 1.) o According to this, it can be applied to kicking start when there is no battery (for example, when the battery is disconnected). It is possible.
- Patent Document 1 JP-A-3-124262 (Pages 7-8, Fig. 1)
- the present invention uses a primary winding connected to an output terminal of a generator linked to an engine and a control element.
- a transformer having a secondary winding connected to the ignition capacitor; and an ignition timing for controlling the control element so as to control the electric charge of the ignition capacitor to flow to the primary side of the ignition coil at a predetermined timing.
- the transformer has a second secondary winding, and the ignition device further includes a generator when the voltage generated by the generator is lower than a predetermined voltage or the generator.
- the ignition timing control circuit is controlled by the output voltage of the second secondary winding.
- the output of the second secondary winding is shut off by switch means, and wasteful consumption of power by the second secondary winding is reduced.
- the switching circuit includes a transistor that is turned on and off in accordance with a signal from a rotation sensor of the engine or an output voltage of the second secondary winding.
- the first diode connected from the output terminal of the generator to the power supply line of the ignition timing control circuit, and the second secondary winding to the power supply line of the ignition timing control circuit via the low voltage circuit. It may have a connected second diode.
- the ignition timing control circuit can be operated even when the engine rotation speed is low and the power generation voltage of the generator is low in a state such as when there is no notter, and the engine can be operated.
- the generated voltage can be used for ignition without waste.
- the secondary winding for supplying the voltage to the ignition capacitor is provided in the transformer of the booster circuit.
- a second secondary winding separate from the second secondary winding is provided. The power voltage can be supplied as an operating voltage to the ignition timing control circuit when the generated voltage is low.
- the supply voltage path from the second secondary winding is cut off by the switch means, so that all the energy of the booster circuit is supplied to the ignition capacitor.
- the power generation energy can be efficiently consumed, it is not necessary to use a large circuit or element, so that the apparatus can be downsized and the ignition capacitor voltage can be prevented from lowering during high rotation.
- FIG. 1 is a main part circuit diagram showing an example of an ignition device for a small two-wheeled vehicle to which the present invention is applied, and is a circuit configuration of a DCCDI type ignition device.
- a generator 1 which generates power by rotating with the rotation and kicking of the engine, and its output terminal is connected to a battery 3 and a power supply of a ignition control circuit 4 via a rectifier 2 with a rectifier. Connected to terminal 4a. Thereby, the battery 3 is charged by the power generated by the generator 1 and the power is supplied to the ignition device 4.
- a primary winding 5a of a transformer 5 forming a main part of a DC-DC converter as a booster circuit is connected to a power terminal 4a of the ignition device 4 via a thyristor SCR1! ⁇
- the transformer 5 has two secondary windings 5b '5c, and the first secondary winding 5b is connected to an output terminal 4b of the ignition device 4 via a forward diode D1 and an ignition capacitor C1. It is connected.
- the nodes of the diode D1 and the ignition capacitor C1 are grounded through a thyristor SCR2.
- the output terminal 4b is connected to an induction coil 6, which charges and discharges the ignition capacitor C1 in response to the thyristor SCR2 being turned off and on, and the high voltage boosted by the induction coil 6 at the time of discharge. Supplied to
- the other end of the primary winding 5a is selectively grounded via a transistor FET.
- a transistor FET When the voltage generated in the secondary winding 5b is equal to or higher than the upper limit, the transistor FET is turned off, and it is possible to prevent the secondary winding 5b from being excessively boosted.
- the upstream side of the primary winding 5a that is, the thyristor SCR1 and the node force of the primary winding 5a are connected to the input terminal of the three-terminal regulator 8 via the forward diode D3, and are connected to the three-terminal regulator.
- the output terminal of the motor 8 is connected to the power supply terminal of the ignition timing control circuit 9 which also has the same power as the CPU.
- the ignition timing control circuit 9 turns on / off the thyristor SCR2 at a predetermined timing based on the signals (Ne, a) of the engine rotation sensor and the ignition timing sensor (not shown) and discharges the ignition coil 7 to the ignition coil. Let it.
- the second secondary winding 5c is connected to the transistor circuit 11 via a forward diode D2.
- the transistor circuit 11 cooperates with the diode D3 to connect the power supply terminal of the ignition timing control circuit 9 from one of the second secondary winding 5c side and the primary winding 5a side, that is, the output terminal side of the generator.
- a switching circuit for selectively supplying power is configured.
- the transistor circuit 11 supplies the voltage from the second secondary winding 5c as an input voltage to the three-terminal regulator 8 in the ON state.
- the transistor circuit 11 shown in FIG. 1 is configured by combining three transistors Q1, Q2, and Q3 as shown in FIG.
- a switch element is provided between the output terminal of the second secondary winding 5c and the diode D3 and the node of the three-terminal regulator 8.
- the first transistor Q1 is connected.
- the first transistor Q1 is on / off controlled by the second transistor Q2.
- a third transistor Q3 for turning on and off the second transistor Q2 is provided, and the third transistor Q3 is provided with a high (high level) signal from the ignition timing control circuit 9. It is turned on by the output and turned off by the Lo (low level) output.
- the ignition timing control circuit 9 outputs a Hi signal based on an input (Ne) from the engine rotation sensor when the rotation speed is equal to or higher than a predetermined rotation speed (Nd), and outputs a Lo signal when the rotation speed is lower than the predetermined rotation speed (Nd).
- the capability of the DC-DC converter can be set lower than that of the conventional one, and therefore, it is possible to promote downsizing and low cost of the ignition device.
- the extra power consumed in the ignition control system is reduced, there is an effect that heat generation in the circuit can be suppressed.
- the detection of the no-notch state in the ignition timing control circuit 9 is not limited to the above-described high and low engine rotation speeds, but may be any other signal as long as it can detect the no-battery state.
- the ignition timing control circuit 9 detects the power supply voltage (for example, the voltage of the power supply terminal 4a)
- the power supply voltage may be used as a criterion, and the power supply voltage may be detected by a separate voltage detection circuit. If the voltage is detected, the voltage detection circuit may determine whether the power supply voltage is higher or lower than a predetermined voltage, and turn on / off the third transistor Q3.
- the transistor circuit 11 is configured by a combination of two transistors Q1 and Q2. Even in this case, similarly to the above, when the engine rotation speed is lower than the predetermined rotation speed Nd, the Lo signal is output from the ignition timing control circuit 9, and when the engine rotation speed is higher than the predetermined rotation speed Nd. Output a Hi signal from the ignition timing control circuit 9.
- a third example is shown with reference to FIG. Also in this case, the same reference numerals are given to the same parts as those in the illustrated example, and the detailed description thereof will be omitted.
- a Zener diode ZD is connected to the base of the second transistor Q2 in the circuit of the above second example, and the output voltage of the second secondary winding 5c is divided to perform the Zener diode. The voltage is applied to the base of the second transistor Q2 via the diode ZD.
- the divided voltage value of the output voltage from the second secondary winding 5c and the Zener voltage (predetermined voltage) of the Zener diode ZD become the same. Set to.
- the diode circuit 11 forming a switching circuit in cooperation with the diode D3 has a second three-terminal regulator 12 and a diode D4.
- the input terminal of the second three-terminal regulator 12 is connected to the output terminal of the second secondary winding 5c, and the output terminal of the second three-terminal regulator 12 is connected to the forward terminal.
- the three-terminal regulator 8 has an output characteristic matching the rated input voltage (for example, 5 V) of the ignition timing control circuit 9, while the second three-terminal regulator 12 has a rated output voltage ( (E.g. 12V) Use a material having properties.
- the output of the second three-terminal regulator 12 is always constant. If the engine speed is lower than the predetermined speed Nd, the voltage boosted by the second secondary winding 5c becomes equal to the rated output of the battery by the second three-terminal regulator 12. Supplied to terminal regulator 9. Normally, the generator 1 can output a voltage equal to or higher than the full charge voltage of the battery 3, and the generated voltage of the generator 1 when the engine speed is high is equal to the constant voltage output value of the second three-terminal regulator 12. As described above, in this case, no current flows from the second secondary winding 5c through the second three-terminal regulator 12, and the same effects as in the above-described examples can be obtained.
- the capacitor-type ignition device according to the present invention has an effect of efficiently using the generated voltage, and is useful as an ignition device for a small motorcycle.
- FIG. 1 is a main part circuit diagram showing an example of an ignition device for a small motorcycle, for example, to which the present invention is applied.
- FIG. 2 is a diagram corresponding to FIG. 1 showing a second example.
- FIG. 3 is a diagram corresponding to FIG. 1 showing a third example.
- FIG. 4 is a diagram corresponding to FIG. 1 showing a fourth example.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005517744A JPWO2005075817A1 (ja) | 2004-02-05 | 2005-02-04 | コンデンサ容量式点火装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-029399 | 2004-02-05 | ||
JP2004029399 | 2004-02-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005075817A1 true WO2005075817A1 (ja) | 2005-08-18 |
Family
ID=34835948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/001677 WO2005075817A1 (ja) | 2004-02-05 | 2005-02-04 | コンデンサ容量式点火装置 |
Country Status (2)
Country | Link |
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JP (1) | JPWO2005075817A1 (ja) |
WO (1) | WO2005075817A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104796124A (zh) * | 2015-04-17 | 2015-07-22 | 国家电网公司 | 封闭式小间隙多电极气体开关装置及方法 |
CN105673293A (zh) * | 2011-07-07 | 2016-06-15 | 曹杨庆 | 汽油机提前角和点火能量双最优点火电路 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03124262A (ja) * | 1989-10-03 | 1991-05-27 | Hanshin Electric Co Ltd | Dc―dcコンバータ及びこれを用いた内燃機関用容量放電式点火装置 |
JPH06159207A (ja) * | 1992-11-18 | 1994-06-07 | Mitsubishi Electric Corp | 内燃機関点火装置 |
JPH1089211A (ja) * | 1996-09-19 | 1998-04-07 | Mitsuba Corp | 点火制御装置 |
-
2005
- 2005-02-04 JP JP2005517744A patent/JPWO2005075817A1/ja not_active Abandoned
- 2005-02-04 WO PCT/JP2005/001677 patent/WO2005075817A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03124262A (ja) * | 1989-10-03 | 1991-05-27 | Hanshin Electric Co Ltd | Dc―dcコンバータ及びこれを用いた内燃機関用容量放電式点火装置 |
JPH06159207A (ja) * | 1992-11-18 | 1994-06-07 | Mitsubishi Electric Corp | 内燃機関点火装置 |
JPH1089211A (ja) * | 1996-09-19 | 1998-04-07 | Mitsuba Corp | 点火制御装置 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105673293A (zh) * | 2011-07-07 | 2016-06-15 | 曹杨庆 | 汽油机提前角和点火能量双最优点火电路 |
CN104796124A (zh) * | 2015-04-17 | 2015-07-22 | 国家电网公司 | 封闭式小间隙多电极气体开关装置及方法 |
CN104796124B (zh) * | 2015-04-17 | 2017-11-21 | 国家电网公司 | 封闭式小间隙多电极气体开关装置及方法 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2005075817A1 (ja) | 2007-10-11 |
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