WO2017183062A1 - 内燃機関用点火装置 - Google Patents
内燃機関用点火装置 Download PDFInfo
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- WO2017183062A1 WO2017183062A1 PCT/JP2016/002154 JP2016002154W WO2017183062A1 WO 2017183062 A1 WO2017183062 A1 WO 2017183062A1 JP 2016002154 W JP2016002154 W JP 2016002154W WO 2017183062 A1 WO2017183062 A1 WO 2017183062A1
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- primary coil
- ignition
- sub
- energization
- coil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P3/00—Other installations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P15/00—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
- F02P15/10—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits having continuous electric sparks
Definitions
- the present invention relates to an ignition device for an internal combustion engine mounted on a motor vehicle, and obtains good discharge characteristics by increasing the discharge energy generated on the secondary side of the ignition coil in a superimposed manner.
- Direct-injection engines and high-EGR engines are adopted as internal combustion engines mounted on vehicles to improve fuel efficiency.
- these engines are not very ignitable, so a high-energy ignition system is required.
- a phase discharge ignition device has been proposed in which the output of another ignition coil is additionally superimposed on the secondary output of the ignition coil generated by the classic current interruption principle (for example, Patent Document 1). See).
- the ignition device described in Patent Document 1 by interrupting the primary current of the main ignition coil, the high voltage of several kV generated on the secondary side thereof causes dielectric breakdown in the discharge gap of the spark plug, thereby igniting.
- the primary current of the auxiliary ignition coil connected in parallel with the main ignition coil is cut off, and a DC voltage of several kV generated on the secondary side is additionally superimposed.
- the energization time to the primary coil can be increased without increasing the energization time of the secondary coil.
- a method for increasing the discharge energy is also conceivable.
- the power supply voltage since the power supply voltage must be boosted to several kV, the boosting circuit to be mounted must have a high withstand voltage and high voltage connection resistance, resulting in a considerable increase in cost.
- the present invention can ensure a stable high current period without increasing the energization time of the main primary coil, maintain suitable combustion, and increase the size of the ignition coil and significantly increase the cost.
- An object of the present invention is to provide an ignition device for an internal combustion engine that can suppress this.
- the invention according to claim 1 is directed to a main primary coil in which a positive direction magnetic flux is increased by energization and a positive direction magnetic flux is reduced by interrupting the current, and a reverse direction by energization.
- An ignition coil having a secondary primary coil that generates additional magnetic flux, a secondary coil that is connected to a spark plug at one end, and generates a discharge energy by the magnetic flux of the primary primary coil and the secondary primary coil, and the ignition coil Main switch means for switching energization / cutoff to the main primary coil of the main coil, sub-primary coil energization permission switch means for switching energization permission / rejection to the sub-primary coil of the ignition coil, and energization to the sub-primary coil of the ignition coil Sub-primary coil energization switch means for switching off, the main switch means, sub-primary coil energization permission switch means, and sub-primary coil energization switch hand Ignition control means for generating a discharge spark in the spark plug at a predetermined timing of the combustion cycle by controlling the switching operation of the secondary primary coil energization permission switch means and the secondary primary coil By controlling the switching operation of the energization switch means, the discharge energy generated in the
- the ignition control means turns off the main switch means to cut off the energization to the main primary coil.
- the sub primary coil energization permission switch means is turned on to permit energization of the sub primary coil.
- the ignition control means turns off the main switch means and cuts off the energization to the main primary coil. Thereafter, the sub primary coil energization permission switch means is turned on to permit energization of the sub primary coil.
- the ignition control means includes a sub-ignition coil based on a driving situation of the vehicle.
- the energization start timing is determined, and the switching operation control of the sub primary coil energization switch means is performed.
- the invention according to claim 5 is the internal combustion engine ignition device according to any one of claims 1 to 4, wherein the ignition control means is configured to control the auxiliary ignition coil based on a driving state of the vehicle.
- the energization time is determined, and the switching operation control of the sub primary coil energization switch means is performed.
- the invention according to claim 6 is the ignition device for an internal combustion engine according to any one of claims 1 to 3, wherein the auxiliary primary coil energization switch means sufficiently follows an input short pulse.
- the ignition control means performs PWM control of the sub-primary coil energization switch means with a pulse signal having a duty ratio determined based on a driving situation of the vehicle.
- the invention according to claim 7 is the ignition device for an internal combustion engine according to any one of claims 4 to 6, wherein the secondary current that detects the secondary current that flows to the secondary side of the ignition coil is detected. It has a current detection means, and the ignition control means determines the driving situation of the vehicle based on the secondary current detected by the secondary current detection means.
- the invention according to claim 8 is the ignition device for an internal combustion engine according to any one of claims 1 to 3, wherein the secondary current that detects the secondary current flowing to the secondary side of the ignition coil is detected.
- the secondary primary coil energizing switch means has a high-speed switching characteristic capable of sufficiently following an input short pulse, and the ignition control means includes a secondary current detected by the secondary current detection means. However, the switching operation control of the auxiliary primary coil energization switch means is performed so as to hold a predetermined current value.
- the invention according to claim 9 is the ignition device for an internal combustion engine according to any one of claims 1 to 3, wherein the secondary current that detects the secondary current flowing to the secondary side of the ignition coil is detected.
- the secondary primary coil energizing switch means has a high-speed switching characteristic capable of sufficiently following an input short pulse, and the ignition control means includes a secondary current detected by the secondary current detection means. However, the switching operation control of the sub primary coil energization switch means is performed so as to be in a predetermined change state.
- the invention according to claim 10 is the sub-primary current detection for detecting the current flowing through the sub-primary coil of the ignition coil in the ignition device for an internal combustion engine according to any one of claims 1 to 9. And the ignition control means detects an ignition coil abnormality based on the sub primary current value detected by the sub primary current detection means.
- the invention according to claim 11 is the ignition device for an internal combustion engine according to any one of claims 1 to 10, wherein the primary primary coil is changed by a change in magnetic flux when the power supply to the main primary coil is cut off.
- the number of turns of the sub primary coil is set so that the voltage generated in the coil is smaller than the supply voltage to the sub primary coil.
- the invention according to claim 12 is the ignition device for an internal combustion engine according to any one of claims 1 to 11, wherein the main switch means is connected between the main ignition coil and a grounding point. And a bypass line connected in parallel with a rectifier that is forward in the direction from the grounding point toward the ignition coil.
- the invention according to claim 13 is the ignition device for an internal combustion engine according to any one of claims 1 to 12, wherein at least the sub primary coil energization permission switch means and the sub primary coil energization switch The means is housed in one case and unitized.
- the invention according to claim 14 is the ignition device for an internal combustion engine according to any one of claims 1 to 12, wherein the ignition coil, the main switch means, and the auxiliary primary coil energization permission.
- the switch means and the auxiliary primary coil energization switch means are housed in a single housing case to form a unit.
- the invention according to claim 15 is the ignition device for an internal combustion engine according to any one of claims 1 to 14, wherein a plurality of ignition coils, main switch means corresponding to each ignition coil, Primary coil energization permission switch means and sub-primary coil energization switch means, respectively, and secondary coils in all ignition coils are connected in parallel to the ignition plugs, and the primary primary in all ignition coils by the ignition control means It is characterized in that energization / cutoff to the coil and the sub primary coil is controlled.
- the invention according to claim 16 is the ignition device for an internal combustion engine according to any one of claims 1 to 14, wherein a plurality of ignition coils, main switch means corresponding to each ignition coil, Primary coil energization permission switch means and sub-primary coil energization switch means, respectively, and secondary coils in all ignition coils are connected in series to the spark plugs, and the primary control in all ignition coils by the ignition control means It is characterized in that energization / cutoff to the coil and the sub primary coil is controlled.
- the invention according to claim 17 is the internal combustion engine ignition device according to claim 15 or claim 16, wherein at least the auxiliary primary coil energization permission switch means and the auxiliary primary coil corresponding to all the ignition coils.
- the energization switch means is housed in one case and is unitized.
- the invention according to claim 18 is the ignition device for an internal combustion engine according to any one of claims 1 to 17, wherein the ignition control means is provided for each cylinder so as to control the internal combustion engine. On the basis of an ignition instruction from an internal combustion engine drive control device that performs drive control, the ignition control means performs ignition control of the corresponding cylinder.
- the invention according to claim 19 is the ignition device for an internal combustion engine according to any one of claims 1 to 17, wherein the sub-primary coil energization permission switch means and the sub-primary coil energization switch of all cylinders are provided.
- the means and the ignition control means are provided in an internal combustion engine drive control device that performs overall drive control of the internal combustion engine, and the ignition control of all cylinders is performed by the internal combustion engine drive control device.
- the discharge energy can be superimposed from the secondary primary coil to the secondary coil by switching operation control of the secondary primary coil energization permission switch means and the secondary primary coil energization switch means.
- a stable high current period can be ensured without prolonging the energization time to the coil, and suitable combustion can be maintained.
- 1 is a schematic configuration diagram showing a first embodiment of an ignition device for an internal combustion engine according to the present invention. It is explanatory drawing which shows the magnetic flux change of the primary side in the ignition coil of the ignition device for internal combustion engines which concerns on this invention. It is the wave form diagram which showed typically each part waveform in the combustion timing of the ignition device for internal combustion engines which concerns on 1st Embodiment.
- 1 is a schematic configuration diagram showing a first embodiment of an ignition device for an internal combustion engine according to the present invention. It is a schematic block diagram which shows the structural example in the case of performing ignition control of the 4-cylinder internal combustion engine by the ignition device for internal combustion engines which concerns on this invention.
- FIG. 1 shows an internal combustion engine ignition device 1 according to a first embodiment of the present invention.
- An ignition coil unit 10 that generates a discharge spark in one ignition plug 2 provided for each cylinder of the internal combustion engine,
- An internal combustion engine drive control device 3 having an ignition control means 31 for outputting a main primary coil ignition signal Sa or the like for instructing an operation timing of the ignition coil unit 10 at an appropriate timing, a DC power source 4 such as a vehicle battery, a sub primary coil It is composed of a switch unit 5 and the like.
- the ignition control means 31 is included in the internal combustion engine drive control apparatus 3 that comprehensively controls the internal combustion engine of the automobile, but is not limited thereto. It is not something.
- an ignition control that receives an ignition signal generated by an ignition signal generation function of a normal internal combustion engine drive control device 3 and outputs an appropriate control signal to the ignition coil unit 10 and the sub primary coil switch unit 5 A means may be provided separately.
- the ignition coil unit 10 includes, for example, an ignition coil 11, a main switch 12, a bypass line 13 provided in parallel with the main switch 12, a rectifying means 14 provided on the bypass line 13, and a secondary current detection means 15 in a case 16 having a required shape.
- the unit is housed in a unitary structure.
- a high voltage terminal 161 and a connector 162 are provided at appropriate positions of the case 16, and the spark plug 2 is connected via the high voltage terminal 161, and a direct current such as the internal combustion engine drive control device 3 and the vehicle battery is connected via the connector 162.
- the power source 4 and the sub primary coil switch unit 5 are connected.
- the ignition coil 11 includes a primary primary coil 111a (for example, 90 turns), a secondary primary coil 111b (for example, 60 turns), and a secondary coil 112 (for example, 9000 turns).
- the main switch 12 is main switch means for energizing / cutting off the main primary coil 111a, and is configured using, for example, an IGBT (Insulated Gate Bipolar Transistor). That is, the ignition coil unit 10 has a unit structure in which an ignition coil and an igniter are sealed in the case 16.
- the sub primary coil switch unit 5 provided separately from the ignition coil unit 10 is a unitized switch function for controlling energization / cutoff to the sub primary coil 111b.
- the sub primary coil energization permission switch 51 as a sub primary coil energization permission switch means for switching energization permission / rejection to the sub primary coil 111b, and the sub primary coil energization for switching energization / cutoff of 111b to the sub primary coil.
- a sub primary coil energizing switch 52 as a switch means is provided in the same case.
- the sub primary coil energization permission switch 51 opens and closes the line from the minus side of the sub primary coil 111b to the ground point based on the sub primary coil energization permission signal Sb1 from the ignition control means 31.
- the sub primary coil energization switch 52 opens and closes the line from the DC power source 4 to the plus side of the sub primary coil 111b based on the sub primary coil energization signal Sb2 from the ignition control means 31.
- the sub primary coil energization permission switch 51 and the sub primary coil energization switch 52 can be configured using power MOS-FETs having high-speed switching characteristics. Further, a boosting power supply circuit 53 (indicated by a two-dot chain line in FIG.
- the sub primary coil switch unit 5 may be provided in the sub primary coil switch unit 5 so that VB + from the DC power source 4 can be boosted and supplied to the sub primary coil 111b. . In this way, it is possible to increase the voltage supplied to the sub primary coil 111b and to superimpose larger energy from the sub primary coil 111b to the secondary coil 112.
- the secondary current detection means 15 includes, for example, a current detection resistor 151 inserted in a ground line extending from the secondary coil 112 to GND, and a secondary side voltage detection line for detecting a voltage change caused by the current detection resistor 151.
- the secondary current detection signal obtained by the secondary current detection means 15 is supplied to the internal combustion engine drive control device 3.
- the ignition coil unit 10 is provided with sub primary current detection means 17 (comprising a sub primary current detection resistor 171 and a sub primary voltage detection line 172) for detecting a sub primary current flowing in the sub primary coil.
- the sub primary current detection signal obtained from the sub primary current detection means 17 is also supplied to the internal combustion engine drive control device 3.
- the ignition coil 11 causes the magnetic flux generated in the main primary coil 111a and the sub primary coil 111b to act on the secondary coil 112.
- the main primary coil 111a and the sub primary coil 111b are arranged so as to surround the center core 113.
- the secondary coil 112 is arranged outside thereof.
- main primary coil 111a One end of the main primary coil 111a is connected to the DC power supply 4, and a power supply voltage VB + (for example, 12V) is applied.
- the other end of the main primary coil is connected to the ground point GND via the main switch 12.
- a semiconductor element capable of high-speed and high-speed switching can be used.
- IGBT semiconductor element
- the main primary coil ignition signal Sa output from the ignition control means 31 of the internal combustion engine drive control device 3 is input to the gate of the main switch 12 (the signal level of the main primary coil ignition signal Sa changes from L to H.
- the main switch 12 is switched from OFF to ON, and the main primary current I1a flows to the main primary coil 111a.
- One end of the sub primary coil 111b is connected to the DC power source 4 via the sub primary coil energization switch 52 of the sub primary coil switch unit 5, and is output from the ignition control means 31 of the internal combustion engine drive control device 3, for example.
- the primary coil energization signal Sb2 is input to the gate of the sub primary coil energization switch 52 (when the signal level of the sub primary coil energization signal Sb2 changes from L to H), the sub primary coil energization switch 52 switches from OFF to ON.
- the power supply voltage VB + (12V) is applied.
- the other end of the sub primary coil 111b is connected to the ground point GND via the sub primary coil energization permission switch 51 of the sub primary coil switch unit 5, and is output from the ignition control means 31 of the internal combustion engine drive control device 3, for example.
- the sub primary coil energization permission signal Sb1 is input to the gate of the sub primary coil energization permission switch 51 (when the signal level of the sub primary coil energization permission signal Sb1 changes from L to H)
- the sub primary coil energization permission switch 51 The circuit that is switched from OFF to ON and reaches the ground point GND is closed.
- the sub primary coil 111b is energized only when the sub primary coil energization permission switch 51 and the sub primary coil energization switch 52 are simultaneously turned on. If one of the primary coil energization permission switch 51 or the sub primary coil energization switch 52 remains off, the energization to the sub primary coil 111b can be invalidated.
- the ignition control means 31 of the internal combustion engine drive control device 3 outputs the sub primary coil energization permission signal Sb1 at a predetermined timing to the cylinder to be subjected to ignition control, the sub control in the ignition coil unit 10 of the corresponding cylinder.
- the circuit from the primary coil 111b to the grounding point GND is closed, when the power supply voltage from the DC power supply 4 is applied to the sub primary coil 111b, the sub primary current can be put into a standby state, and the energization is actually performed. Only when the auxiliary primary coil energization switch 52 is turned on, the energization control to the auxiliary primary coil 111b can be performed.
- the main primary coil 111a and the sub primary coil 111b are wound around a bobbin inserted into the outer periphery of the center core 113, and are wound so that the direction of the magnetic flux generated when the DC power supply 4 is energized is reversed. Make the turning direction or feeding position different. For example, as shown in FIG. 2, when power is supplied from the same side (lower part in FIG. 2), the winding direction of the main primary coil 111a and the winding direction of the sub-primary coil 111b are reversed.
- the sub primary coil energization permission switch 51 is turned on, and the sub primary coil energization switch 52 is turned on after the shut-off timing at which the energization to the main primary coil 111a is interrupted, so that the superimposed current I1b flows through the sub primary coil 111b.
- a superimposed magnetic flux in the opposite direction to the energizing magnetic flux (the same direction as the interrupting magnetic flux) is generated (see FIG. 2C). That is, the superimposed magnetic flux generated by energizing the sub-primary coil 111b acts to accelerate the decrease rate of the energized magnetic flux increased by energizing the main primary coil 111a.
- the number of turns of the sub primary coil 111b is set so that the voltage generated in the sub primary coil 111b due to the magnetic flux change when the energization to the main primary coil 111a is cut off becomes smaller than the power supply voltage (for example, + 12V). It is necessary to keep. For example, when the voltage generated in the sub primary coil 111b when the energization to the main primary coil 111a is cut off is larger than the voltage of the DC power supply 4, even if the sub primary coil energization switch 52 is turned on, the superimposed magnetic flux is generated. This is because the superimposed current I1b that can be generated cannot flow.
- the power supply voltage for example, + 12V
- a bypass line 13 is provided in parallel with the main switch 12, and a rectifying means 14 (for example, a cathode is provided on the collector side of the main switch 12) that is forward from the ground point side of the bypass line 13 toward the ignition coil 11 side. , Diodes each having an anode connected to the emitter side of the main switch 12).
- the internal combustion engine drive control device 3 determines in accordance with the driving situation of the vehicle and determines whether the sub primary coil switch unit 5 and the normal discharge control without using the sub primary coil 111b or the superposed discharge control using the sub primary coil 111b and Instructs the ignition coil unit 10. That is, when the ignition control means 31 of the internal combustion engine drive control device 3 outputs only the main primary coil ignition signal Sa, normal discharge control is performed by the ignition coil unit 10, and the ignition control means 31 adds to the main ignition signal Sa. When the sub primary coil energization permission signal Sb1 and the sub primary coil energization signal Sb2 are output, the superimposed discharge control is performed by the sub primary coil switch unit 5 and the ignition coil unit 10.
- the internal combustion engine drive control device 3 performs normal discharge control.
- the main primary coil ignition signal Sa is output from the ignition coil unit 10.
- the signal level of the main primary coil ignition signal Sa is changed from L to H, the main switch 12 is turned on, and the primary current I1a starts to flow.
- the primary current energization time Ta elapses, the signal level of the main primary coil ignition signal Sa is changed from H to L, the main switch 12 is turned off, and the primary current I1a is cut off. A current I2 flows.
- the superimposed current I1b does not flow through the sub primary coil 111b. Therefore, since the magnetic flux reduction rate of the main primary coil 111a due to the current interruption is normal, the secondary current I2 becomes the highest immediately after the primary current interruption, and then exhibits a triangular wave shape that gradually decreases.
- the internal combustion engine drive control device 3 performs main discharge of the primary coil from the ignition control means 31 in order to perform superimposed discharge control.
- the signal Sa, the sub primary coil energization permission signal Sb1 and the sub primary coil energization signal Sb2 are output and input to the sub primary coil switch unit 5 and the ignition coil unit 10.
- the information used by the internal combustion engine drive control device 3 to determine the driving situation includes the engine speed, the secondary current value (detection information from the secondary current detection means 15 in the ignition coil unit 10), and the sub primary current value. Any information may be used as long as it is information related to combustion of the cylinder, such as (detection information from the sub primary current detection means 17 in the ignition coil unit 10) and the temperature of the ignition coil 11. Further, how to determine the energization start timing and energization period of the sub-primary coil 111b from the determination result of the driving situation and generate the sub-primary coil energization signal Sb2 belongs to know-how according to engine characteristics and the like. Yes, it is not uniquely determined from information related to the determination of the driving situation.
- the ignition coil unit 10 to which the main primary coil ignition signal Sa is input from the internal combustion engine drive control device 3 starts to flow the primary current I1a in the same manner as the normal discharge control described above, and then when the primary current energization time Ta elapses. By turning off the switch 12 and cutting off the primary current I1a, the secondary current I2 flows on the secondary coil 112 side.
- the sub primary coil switch unit 5 to which the sub primary coil energization permission signal Sb1 is input from the internal combustion engine drive control device 3 is earlier than the energization cutoff timing (elapsed timing of the primary current energization time Ta) by the pre-interruption grace period Tpre.
- the sub primary coil energization permission switch 51 is turned on at the timing, and thereafter, when the sub primary coil energization permission time Tb1 elapses, the sub primary coil energization permission switch 51 is turned off.
- the sub primary coil energization permission signal Sb1 is only required to enable energization control to the sub primary coil 111b at least after the energization cut-off timing. Therefore, the pre-cut-off grace period Tpre is not provided, and the main primary coil ignition signal Sa is set. It may be turned on when the primary current energization time Ta has elapsed.
- the sub primary coil switch unit 5 to which the sub primary coil energization signal Sb2 is input from the internal combustion engine drive control device 3 turns on / off the sub primary coil energization switch 52 in accordance with the on / off of the sub primary coil energization signal Sb2.
- the sub primary coil energization control time Tb2 indicated by the sub primary coil energization signal Sb2 is set to a time shorter than the above-described sub primary coil energization permission time Tb1.
- the secondary current I2 can be prevented from decreasing in a triangular wave shape, and a high current value can be maintained for a relatively long time. That is, the energy generated in the sub-primary coil 111b by the energization control is supplied to the secondary coil 112 (indicated by the shaded area in FIG. 3), and the secondary current I2 is increased, and a high voltage is applied to the spark plug 2. It is possible to apply over a long time.
- the applied voltage becomes constant (VB +).
- the sub primary coil energization signal Sb2 supplied from the ignition control means 31 to the sub primary coil energization switch 52 may be a short pulse train.
- the secondary primary coil energization switch 52 has a high-speed switching characteristic that can sufficiently follow the input short pulse, so that the ignition control means 31 outputs a pulse signal having a duty ratio determined based on the driving state of the vehicle. If the sub primary coil energization signal Sb2 is used, the sub primary coil energization switch 52 can be PWM-controlled, and the discharge energy applied to the secondary coil 112 can be appropriately adjusted.
- the method for finely adjusting the discharge energy applied from the sub primary coil 111b to the secondary coil 112 is not limited to the PWM control for the sub primary coil energization switch 52, and a transformer means for increasing / decreasing the voltage applied to the sub primary coil 111b is provided.
- the voltage applied to the sub primary coil 111b may be finely adjusted.
- PWM control is performed on the sub primary coil energization switch 52 so that the secondary current detected by the secondary current detection means 15 maintains a predetermined current value.
- the present invention is not limited to this.
- an ideal change state of the secondary current I2 in which the discharge characteristic by the spark plug 2 is good is set in advance, and the secondary current I2 detected by the secondary current detection means 15 is this ideal change state.
- the PWM control may be performed on the sub primary coil energization switch 52.
- an ideal change state of the superimposed current I1b that can obtain an ideal change state of the secondary current I2 is set in advance, and the sub primary current I1b detected by the sub primary current detection means 17 is ideal.
- the secondary primary coil energization switch 52 may be subjected to PWM control so that a change state is achieved.
- the discharge energy from the secondary primary coil 111b is transferred from the secondary primary coil 111b by the switching operation control of the secondary primary coil energization permission switch 51 and the secondary primary coil energization switch 52. Therefore, it is possible to maintain a stable high current period without increasing the energization time of the main primary coil 111a, and to maintain suitable combustion.
- the sub primary coil energization permission signal Sb1 and the sub primary coil energization signal Sb2 are always at appropriate timings, respectively, with the sub primary coil energization permission switch 51 and the sub primary coil energization switch 52. If the signal is not input to, the superimposed discharge control is not executed. Therefore, it is possible to suppress a dangerous sub primary current I1b from flowing due to external noise, aging deterioration of the device, and the like, and it is possible to improve the safety of the device.
- the ignition control unit 31 can detect an ignition coil abnormality based on the sub primary current value detected by the sub primary current detection unit 17, the safety of the apparatus can be further improved.
- the discharge energy is applied to the spark plug 2 from one ignition coil 10.
- the present invention is not limited to this, and a plurality of ignition coil units 10 are provided.
- the secondary primary coil switch unit 5 may be used to give suitable discharge energy to the spark plug 2.
- the secondary coil 112 in each ignition coil 11 may be connected in parallel to the ignition plug 2, or the secondary coil 112 in each ignition coil 11 may be connected in series to the ignition plug 2. .
- the ignition control means 31 controls the energization / interruption of each ignition coil unit 10 and the sub primary coil switch unit 5.
- the sub primary coil switch unit 5 since the sub primary coil switch unit 5 is provided separately from the ignition coil unit 10, a sub primary coil switch unit is provided for each ignition coil unit 10. Space for mounting 5 is required. Therefore, the sub primary coil energization permission switch 51 and the sub primary coil energization switch 52 for each cylinder may be housed in one case to be unitized. Alternatively, the sub primary coil energization permission switch 51 and the sub primary coil energization switch 52 of all the cylinders may be housed in one case and unitized.
- the function of the sub-primary coil switch unit 5 can be provided integrally with the ignition coil unit 10.
- the auxiliary primary coil energization permission switch 18 and the auxiliary primary coil energization switch 19 using discrete parts having high heat resistance and noise resistance are connected to the ignition coil unit. 10 '.
- the connection wiring between the internal combustion engine drive control device 3 including the ignition control means 31 and the DC power supply 4 and the ignition coil unit 10 ' can be simplified. Further, there is an advantage that it is not necessary to secure a storage space for the sub primary coil switch unit 5.
- the internal combustion engine drive control device 3 includes the ignition control means 31, and the internal combustion engine drive control device 3 controls the ignition of all the cylinders.
- the present invention is not limited to this, and an ignition control means may be separately provided for each cylinder.
- FIG. 5 shows a configuration in which an internal combustion engine (4-cylinder engine) including a first cylinder 100a, a second cylinder 100b, a third cylinder 100c, and a fourth cylinder 100d is driven and controlled by the internal combustion engine drive control device 3.
- the first cylinder 100a applies discharge energy from the first ignition coil unit 10a to the first spark plug 2a.
- the drive control for the first ignition coil unit 10a is performed by the first sub-primary coil switch unit 5a (first ignition coil unit 10a).
- the sub primary coil energization permission switch means and the sub primary coil energization switch means corresponding to the sub primary coil 111b of the ignition coil 11 in the coil unit 10a are unitized) and the first ignition control means 6a.
- the first ignition control means 6a that receives the first ignition instruction signal S01 from the internal combustion engine drive control device 3 performs the main primary coil ignition signal Sa and the sub-according to the on / off timing of the first ignition instruction signal S01.
- the primary coil energization permission signal Sb1 and the sub primary coil energization signal Sb2 are appropriately generated, the main primary coil ignition signal Sa is supplied to the first ignition coil unit 10a, and the sub primary coil energization permission signal Sb1 and the sub primary coil energization signal Sb2 are supplied. Is supplied to the first sub-primary coil switch unit 5a.
- the control for the ignition coil 11 in the first ignition coil unit 10a that is, the energization / shut-off to the main primary coil 111a and the energization / shut-off to the sub-primary coil 111b are performed, depending on the normal discharge control or the superimposed discharge control.
- the discharged energy is given to the first spark plug 2a.
- the second cylinder 100b gives discharge energy from the second ignition coil unit 10b to the second ignition plug 2b.
- the drive control for the second ignition coil unit 10b is performed by the second sub-primary coil switch unit 5b ( This is performed by the second ignition control means 6b and the sub primary coil energization permission switch means and the sub primary coil energization switch means corresponding to the sub primary coil 111b of the ignition coil 11 in the second ignition coil unit 10b. .
- the second ignition control means 6b that receives the second ignition instruction signal S02 from the internal combustion engine drive control device 3 performs the main primary coil ignition signal Sa, the sub-according to the on / off timing of the second ignition instruction signal S02.
- the primary coil energization permission signal Sb1 and the sub primary coil energization signal Sb2 are appropriately generated, the main primary coil ignition signal Sb is supplied to the second ignition coil unit 10b, the sub primary coil energization permission signal Sb1 and the sub primary coil energization signal Sb2 Is supplied to the second sub-primary coil switch unit 5b.
- the control for the ignition coil 11 in the second ignition coil unit 10b that is, the energization / interruption of the main primary coil 111b and the energization / interruption of the sub-primary coil 111b are performed, depending on the normal discharge control or the superimposed discharge control.
- the discharged energy is given to the second spark plug 2b.
- the third cylinder 100c applies discharge energy from the third ignition coil unit 10c to the third spark plug 2c, and drive control for the third ignition coil unit 10c is performed by the third sub-primary coil switch unit 5c ( This is performed by the third ignition control means 6c and the sub primary coil energization permission switch means and the sub primary coil energization switch means corresponding to the sub primary coil 111b of the ignition coil 11 in the third ignition coil unit 10c). .
- the third ignition control means 6c that receives the third ignition instruction signal S03 from the internal combustion engine drive control device 3 adjusts the main primary coil ignition signal Sa and the sub-ignition timing in accordance with the on / off timing of the third ignition instruction signal S03.
- the primary coil energization permission signal Sb1 and the sub primary coil energization signal Sb2 are appropriately generated, the main primary coil ignition signal Sb is supplied to the third ignition coil unit 10c, the sub primary coil energization permission signal Sb1 and the sub primary coil energization signal Sb2 Is supplied to the third sub-primary coil switch unit 5c.
- the control of the ignition coil 11 in the third ignition coil unit 10c that is, the energization / interruption of the main primary coil 111b and the energization / interruption of the sub-primary coil 111b are performed.
- the discharged energy is applied to the third spark plug 2c.
- the fourth cylinder 100d gives discharge energy from the fourth ignition coil unit 10d to the fourth spark plug 2d.
- the drive control for the fourth ignition coil unit 10d is performed by a fourth sub-primary coil switch unit 5d ( This is performed by the sub-primary coil energization permission switch means and the sub-primary coil energization switch means corresponding to the sub-primary coil 111b of the ignition coil 11 in the fourth ignition coil unit 10d) and the fourth ignition control means 6d. .
- the fourth ignition control means 6d that receives the fourth ignition instruction signal S04 from the internal combustion engine drive control device 3 performs the main primary coil ignition signal Sa and the sub-according to the on / off timing of the fourth ignition instruction signal S04.
- the primary coil energization permission signal Sb1 and the sub primary coil energization signal Sb2 are appropriately generated, the main primary coil ignition signal Sb is supplied to the fourth ignition coil unit 10d, and the sub primary coil energization permission signal Sb1 and the sub primary coil energization signal Sb2 are supplied. Is supplied to the fourth sub-primary coil switch unit 5d.
- the control of the ignition coil 11 in the fourth ignition coil unit 10d that is, the energization / interruption of the main primary coil 111b and the energization / interruption of the sub-primary coil 111b are performed, and according to normal discharge control or superimposed discharge control.
- the discharged energy is given to the fourth spark plug 2d.
- the first to fourth ignition coil units 10a to 10a You may comprise so that each detection signal (For example, a secondary current detection signal, a sub primary current detection signal, the temperature detection signal of the ignition coil 11, etc.) may be received from 10d.
- each detection signal For example, a secondary current detection signal, a sub primary current detection signal, the temperature detection signal of the ignition coil 11, etc.
- the respective ignition control means 6a to 6d are provided corresponding to the respective cylinders 100a to 100d, the ignition signals output from the conventional internal combustion engine drive control device 3 to the respective cylinders are sent to the respective ignition control means 6a to 6d. Since it can be used as an ignition instruction signal to 6d, compatibility with the conventional internal combustion engine drive control device 3 can be realized.
- the sub primary coil energization permission switch means, the sub primary coil energization switch means, and the ignition control means of all cylinders are provided in the internal combustion engine drive control device 3, and all the cylinders are operated by the internal combustion engine drive control device 3.
- the ignition control may be performed directly.
- the auxiliary primary coil switch unit 5 and the ignition control means 6 are not interposed between the ignition coil unit 10 of each cylinder and the internal combustion engine drive control device 3, ignition of the internal combustion engine drive control device 3 and each cylinder is performed.
- the coil unit 10 can be directly connected by a wire harness, and there is an advantage that the wiring structure can be simplified.
- Ignition device for internal combustion engines 10 Ignition coil unit 11 Ignition coil 111a Main primary coil 111b Sub primary coil 112 Secondary coil 113 Center core 12 Main switch 16 Case 2 Spark plug 3 Engine control unit 31 Ignition control means 4 DC power source 5 Sub primary Coil switch unit 51 Sub primary coil energization permission switch 52 Sub primary coil energization switch
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
Description
10 点火コイルユニット
11 点火コイル
111a 主一次コイル
111b 副一次コイル
112 二次コイル
113 センターコア
12 主スイッチ
16 ケース
2 点火プラグ
3 エンジンコントロールユニット
31 点火制御手段
4 直流電源
5 副一次コイルスイッチユニット
51 副一次コイル通電許可スイッチ
52 副一次コイル通電スイッチ
Claims (19)
- 通電により正方向の磁束が増加し、電流を遮断することにより正方向の磁束が減ぜられる主一次コイルと、通電により逆方向の追加磁束が生じる副一次コイルと、一端側が点火プラグと接続され、前記主一次コイルと副一次コイルの磁束が作用して放電エネルギが発生する二次コイルと、を有する点火コイルと、
前記点火コイルの主一次コイルへの通電・遮断を切り替える主スイッチ手段と、
前記点火コイルの副一次コイルへの通電許可・拒否を切り替える副一次コイル通電許可スイッチ手段と、
前記点火コイルの副一次コイルへの通電・遮断を切り替える副一次コイル通電スイッチ手段と、
前記主スイッチ手段、副一次コイル通電許可スイッチ手段および副一次コイル通電スイッチ手段の切り替え動作を制御することで、燃焼サイクルの所定のタイミングで点火プラグに放電火花を発生させる点火制御手段と、
を備え、
前記点火制御手段は、前記副一次コイル通電許可スイッチ手段および副一次コイル通電スイッチ手段の切り替え動作制御により、主一次コイルへの通電を遮断した遮断タイミング以降に所定の重畳時間だけ副一次コイルに通電することで、二次コイルに発生する放電エネルギを重畳的に増加させるようにしたことを特徴とする内燃機関用点火装置。 - 前記点火制御手段は、主スイッチ手段をオフにして主一次コイルへの通電を遮断する一次電流遮断タイミングよりも前に、副一次コイル通電許可スイッチ手段をオンにして副一次コイルへの通電を許可するようにしたことを特徴とする請求項1に記載の内燃機関用点火装置。
- 前記点火制御手段は、主スイッチ手段をオフにして主一次コイルへの通電を遮断する一次電流遮断タイミング以降に、副一次コイル通電許可スイッチ手段をオンにして副一次コイルへの通電を許可するようにしたことを特徴とする請求項1に記載の内燃機関用点火装置。
- 前記点火制御手段は、車両の運転状況に基づいて副点火コイルの通電開始タイミングを決定し、副一次コイル通電スイッチ手段の切り替え動作制御を行うようにしたことを特徴とする請求項1~請求項3の何れか1項に記載の内燃機関用点火装置。
- 前記点火制御手段は、車両の運転状況に基づいて副点火コイルの通電時間を決定し、副一次コイル通電スイッチ手段の切り替え動作制御を行うようにしたことを特徴とする請求項1~請求項4の何れか1項に記載の内燃機関用点火装置。
- 前記副一次コイル通電スイッチ手段は、入力される短パルスに十分追随できる高速スイッチング特性を有し、
前記点火制御手段は、車両の運転状況に基づいて定めたデューティー比のパルス信号で前記副一次コイル通電スイッチ手段をPWM制御することを特徴とする請求項1~請求項3の何れか1項に記載の内燃機関用点火装置。 - 前記点火コイルの二次側に流れる二次電流を検出する二次電流検出手段を有し、
前記点火制御手段は、前記二次電流検出手段によって検出された二次電流に基づいて、車両の運転状況を判定することを特徴とする請求項4~請求項6の何れか1項に記載の内燃機関用点火装置。 - 前記点火コイルの二次側に流れる二次電流を検出する二次電流検出手段を有し、
前記副一次コイル通電スイッチ手段は、入力される短パルスに十分追随できる高速スイッチング特性を備え、
前記点火制御手段は、前記二次電流検出手段によって検出された二次電流が、予め定めた電流値を保持するように、副一次コイル通電スイッチ手段の切り替え動作制御を行うようにしたことを特徴とする請求項1~請求項3の何れか1項に記載の内燃機関用点火装置。 - 前記点火コイルの二次側に流れる二次電流を検出する二次電流検出手段を有し、
前記副一次コイル通電スイッチ手段は、入力される短パルスに十分追随できる高速スイッチング特性を備え、
前記点火制御手段は、前記二次電流検出手段によって検出された二次電流が、予め定めた変化状態となるように、副一次コイル通電スイッチ手段の切り替え動作制御を行うようにしたことを特徴とする請求項1~請求項3の何れか1項に記載の内燃機関用点火装置。 - 前記点火コイルの副一次コイルに流れる電流を検出する副一次電流検出手段を有し、
前記点火制御手段は、前記副一次電流検出手段によって検出された副一次電流値に基づいて、点火コイル異常を検出するようにしたことを特徴とする請求項1~請求項9の何れか1項に記載の内燃機関用点火装置。 - 前記主一次コイルへの通電を遮断したときの磁束変化によって副一次コイルに発生する電圧が、該副一次コイルへの供給電圧よりも小さくなるように、前記副一次コイルの巻数を設定するようにしたことを特徴とする請求項1~請求項10の何れか1項に記載の内燃機関用点火装置。
- 前記主点火コイルと接地点との間に接続される主スイッチ手段と並列に接続したバイパス線路に、接地点側から点火コイル側に向かって順方向となる整流手段を有することを特徴とする請求項1~請求項11の何れか1項に記載の内燃機関用点火装置。
- 少なくとも、前記副一次コイル通電許可スイッチ手段と前記副一次コイル通電スイッチ手段を1つのケースに収納して、ユニット化するようにしたことを特徴とする請求項1~請求項12の何れか1項に記載の内燃機関用点火装置。
- 前記点火コイルと、前記主スイッチ手段と、前記副一次コイル通電許可スイッチ手段と、前記副一次コイル通電スイッチ手段を、1つの収納ケースに収納して、ユニット化するようにしたことを特徴とする請求項1~請求項12の何れか1項に記載の内燃機関用点火装置。
- 複数の点火コイルと、各点火コイルに対応する主スイッチ手段、副一次コイル通電許可スイッチ手段および副一次コイル通電スイッチ手段をそれぞれ備え、
全ての点火コイルにおける二次コイルを前記点火プラグに対して並列に接続し、
前記点火制御手段によって、全ての点火コイルにおける主一次コイルおよび副一次コイルへの通電・遮断を制御するようにしたことを特徴とする請求項1~請求項14の何れか1項に記載の内燃機関用点火装置。 - 複数の点火コイルと、各点火コイルに対応する主スイッチ手段、副一次コイル通電許可スイッチ手段および副一次コイル通電スイッチ手段をそれぞれ備え、
全ての点火コイルにおける二次コイルを前記点火プラグに対して直列に接続し、
前記点火制御手段によって、全ての点火コイルにおける主一次コイルおよび副一次コイルへの通電・遮断を制御するようにしたことを特徴とする請求項1~請求項14の何れか1項に記載の内燃機関用点火装置。 - 少なくとも、全ての点火コイルに対応する前記副一次コイル通電許可スイッチ手段と前記副一次コイル通電スイッチ手段を1つのケースに収納して、ユニット化するようにしたことを特徴とする請求項15又は請求項16に記載の内燃機関用点火装置。
- 前記点火制御手段は、気筒毎に設けられ、
内燃機関を統括的に駆動制御する内燃機関駆動制御装置からの点火指示に基づいて、前記点火制御手段は、対応する気筒の点火制御を行うようにしたことを特徴とする請求項1~請求項17の何れか1項に記載の内燃機関用点火装置。 - 全ての気筒の副一次コイル通電許可スイッチ手段と副一次コイル通電スイッチ手段と点火制御手段を、内燃機関を統括的に駆動制御する内燃機関駆動制御装置内に設け、
前記内燃機関駆動制御装置によって、全ての気筒の点火制御を行うようにしたことを特徴とする請求項1~請求項17の何れか1項に記載の内燃機関用点火装置。
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019102976A1 (ja) * | 2017-11-27 | 2019-05-31 | 日立オートモティブシステムズ株式会社 | 内燃機関用点火装置および内燃機関用制御装置 |
WO2019198119A1 (ja) * | 2018-04-09 | 2019-10-17 | 日立オートモティブシステムズ阪神株式会社 | 内燃機関用点火装置 |
WO2019211885A1 (ja) * | 2018-05-01 | 2019-11-07 | 日立オートモティブシステムズ阪神株式会社 | 内燃機関用点火装置 |
WO2019225018A1 (ja) * | 2018-05-25 | 2019-11-28 | 日立オートモティブシステムズ阪神株式会社 | 内燃機関用点火装置 |
WO2020121515A1 (ja) * | 2018-12-14 | 2020-06-18 | 三菱電機株式会社 | 点火装置 |
US11125201B2 (en) | 2018-06-19 | 2021-09-21 | Denso Corporation | Ignition control system for internal combustion engine |
US11408389B2 (en) * | 2018-05-25 | 2022-08-09 | Denso Corporation | Ignition apparatus for internal combustion engine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6245973A (ja) * | 1985-08-23 | 1987-02-27 | Nippon Denso Co Ltd | 内燃機関用点火装置 |
US20150034059A1 (en) * | 2012-03-16 | 2015-02-05 | Delphi Technologies, Inc. | Ignition system |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6318708B2 (ja) * | 2013-04-11 | 2018-05-09 | 株式会社デンソー | 点火制御装置 |
-
2016
- 2016-04-22 WO PCT/JP2016/002154 patent/WO2017183062A1/ja active Application Filing
- 2016-04-22 JP JP2018512510A patent/JP6570737B2/ja not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6245973A (ja) * | 1985-08-23 | 1987-02-27 | Nippon Denso Co Ltd | 内燃機関用点火装置 |
US20150034059A1 (en) * | 2012-03-16 | 2015-02-05 | Delphi Technologies, Inc. | Ignition system |
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