JP5341398B2 - Device for improving engine torque and power - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for increasing the torque and output of an engine while preventing a capacity reduction of a lead-acid battery. <P>SOLUTION: The device includes a series resonance circuit including one coil and one capacitor and connected in parallel to the lead-acid battery, and one or more circuits each including one capacitor and connected in parallel to the lead-acid battery and the series resonance circuit. The inductance of the coil and the capacitance of the capacitor in the series resonance circuit are adjusted so that a current whose frequency is approximately synchronous with the frequency of damped waves generated from a charging power supply to charge the lead-acid battery flows inside a circuit constituted by the series resonance circuit and the lead-acid battery. One or more circuits each have a series resonance frequency which is selected not to counteract resonance between the series resonance circuit and itself. The series resonance frequency which one or more circuits each have is selected not to counteract resonance between the mutual circuits. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to an apparatus for improving torque and output of an engine such as an automobile. In particular, the present invention prevents sulfation from being generated on the electrode of a lead-acid battery such as an automobile due to the action of a resonance current generated by the series-resonant circuit, prevents a decrease in the electric capacity of the lead-acid battery, and Relates to a device capable of increasing the torque and output of an engine by the action of a resonant current generated by another circuit.

  Lead-acid batteries, which are a type of secondary battery, are cheaper than other secondary batteries and can extract a relatively high voltage, so automobile and motorcycle batteries, commercial power backup power supplies, battery-driven forklifts It is widely used as a power source for electric vehicles such as batteries for small airplanes and power sources for uninterruptible power supplies. When a lead-acid battery is repeatedly charged and discharged or left unused, the electric capacity may be significantly reduced. The main factor is sulfation.

  In general, lead-acid batteries use lead (Pb) as the active material for the negative electrode, lead dioxide (PbO2) as the active material for the positive electrode, and dilute sulfuric acid (H2SO4) as the electrolyte. At the time of discharging, lead sulfate (PbSO4) is generated on the positive electrode and the negative electrode, but the generated lead sulfate returns to the negative electrode, the positive electrode, and the electrolytic solution as lead, lead dioxide, and sulfuric acid, respectively, at the time of charging. Therefore, if an ideal chemical reaction proceeds, the lead-acid battery can be used permanently. However, since lead storage batteries are rarely used in a method and environment where an ideal chemical reaction proceeds, in many cases, the lead sulfate produced on the electrode plate with use is often Gradually it will grow and a hard crystalline film will be produced. This is a phenomenon called sulfation.

  In general, an electrode plate of a lead storage battery is formed as a spongy electrode having a large number of pores on the surface in order to increase the surface area and increase the electric capacity of the lead storage battery. This pore is blocked by inert lead sulfate that does not contribute to the electrode reaction due to sulfation, and the surface area of the electrode plate is reduced, and the internal resistance of the lead storage battery is increased due to the presence of lead sulfate as an insulating material. The electric capacity of the battery will be greatly reduced.

  As conventional techniques for removing the lead sulfate film deposited by sulfation, for example, techniques as disclosed in Patent Documents 1 to 5 are disclosed. In order to solve the problems of these conventional techniques, the present inventors have already proposed the technique described in Patent Document 6, and according to this technique, it is possible to regenerate and maintain a lead storage battery as it is mounted on a vehicle. It is clear that there is.

Japanese Patent No. 3902212 Japanese Patent No. 3564458 Japanese Patent No. 3510895 Special table 2001-517419 specification Japanese Patent Application Laid-Open No. 2002-56897 Japanese Patent Application No. 2008-140316

  The technique disclosed in Patent Document 6 is sufficiently practical in that it has an action of regenerating or recovering a lead storage battery with degraded performance in a vehicle and preventing a decrease in the electric capacity of the regenerated or recovered lead storage battery. As a result of recovering the performance of the lead storage battery and maintaining its state by this technology, there is an advantage that an effect such as improvement in driving performance and improvement in fuel consumption can be expected. However, with this technology, it is difficult for the driver to experience effects such as improved driving performance and improved fuel efficiency immediately after the device is attached to the lead-acid battery.

  The inventors of the present invention have been diligently researching a method that can maintain the performance of the lead-acid battery in an ideal state and that allows the driver to experience the effects of the device even after the device is installed. . As a result, based on the technique described in Patent Document 6, in addition to the series resonance circuit, the resonance frequency does not cancel resonance with the series resonance circuit and does not cancel resonance between each other. It has been found that by connecting one or more additional circuits in parallel with a series resonant circuit, the engine torque and output can be improved even immediately after installation of the device.

  According to one aspect of the present invention, the present invention includes a series resonant circuit, which includes at least one coil and at least one capacitor, and is connected in parallel to the lead acid battery, and one capacitor, the lead acid battery, and An apparatus for preventing a reduction in electrical capacity of a lead-acid battery and increasing engine torque and output, comprising one or more circuits connected in parallel to a series resonant circuit. The inductance of the at least one coil of the series resonant circuit and the capacitance of the at least one capacitor are such that a current having a frequency substantially tuned to the frequency of the attenuation wave generated from the charging power source for charging the lead storage battery is It adjusts so that it may flow inside the circuit comprised with a storage battery. Each of the one or more circuits has a series resonant frequency selected so as not to cancel resonance with the series resonant circuit. The series resonant frequency possessed by each of the one or more circuits is selected such that the circuits do not cancel each other.

  According to the present invention, a series resonant circuit having a coil and a capacitor is connected in parallel with a series resonant circuit whose lead frequency is adjusted so that the resonant frequency is generally tuned to the frequency of the attenuation wave generated from the charging power supply (alternator). By connecting to a lead-acid battery so as to be connected, a circuit having a large-amplitude resonance current in which the amplitude of the attenuation wave is amplified is constituted by a series resonance circuit and a lead-acid battery (this circuit is composed of a series resonance circuit and a lead-acid battery). Considering the inductance component of the storage battery, it can be considered as a parallel resonant circuit). In the present invention, by appropriately selecting the parts to be used, particularly the coil and the capacitor, that is, by using the part in which the coil winding resistance and the capacitor ESR (equivalent series resistance) are appropriately selected, A series resonance circuit having a Q value in a predetermined range is configured. When a series resonance circuit having a Q value in a predetermined range is connected in parallel with a lead storage battery, a parallel resonance point of the parallel resonance circuit composed of the series resonance circuit and the inductance component of the lead storage battery, and a series resonance point of the series resonance circuit, (That is, since a narrow peak is obtained at the resonance point, the resonance frequency of the series resonance circuit and the resonance frequency of the parallel resonance circuit are close to each other). Therefore, by adjusting the resonance frequency of the series resonance circuit so as to be close to the frequency of the attenuation wave (that is, approximately tuned), the frequency of the attenuation wave and the resonance frequency of the parallel resonance circuit are approximately tuned. As a result, the resonance current generated by the series resonance circuit flows into the parallel resonance circuit, and the electrode of the lead storage battery vibrates by this resonance current, and sulfation is removed. Furthermore, a resonance current is maintained inside the parallel resonance circuit, and the electrode plate of the lead storage battery can constantly vibrate due to the sustained resonance current, thereby preventing the occurrence of sulfation.

  In the present invention, in addition to the series resonant circuit, one or more circuits (hereinafter also referred to as “one or more additional circuits”) are connected in parallel with the lead storage battery. The one or more additional circuits have a resonant frequency selected so as not to cancel resonance between the series resonant circuit and each other additional circuit, and connect these additional circuits in parallel with the lead acid battery. Thus, it is considered that the resonance current generated by the additional circuit decreases the internal impedance of the lead-acid battery, and as a result, the torque and output of the engine increase. The trigger that generates the resonance current in the one or more additional circuits is considered to be a wave that occurs immediately after the voltage drop of the applied voltage of the ignition coil that occurs with the ignition of the spark plug. As the engine torque and output increase due to the effect of the additional circuit, the throttle opening can be reduced under the same conditions as compared with the case where the device according to the present invention is not installed. Therefore, improvement in driving performance and fuel efficiency can be expected.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of an apparatus 3 according to an embodiment of the present invention. 1A shows a state in which the lid of the apparatus 3 is opened to expose the internal resin or heat insulating material, and FIG. 1B further shows the components inside the apparatus by removing the resin or the heat insulating material. It shows the state that can be seen. 2 and 3 are block diagrams showing a state in which the device 3 according to one embodiment of the present invention is connected to a lead storage battery (also referred to as a battery) 4 mounted on a vehicle such as an automobile. As shown in FIGS. 1 and 3, the device 3 includes a series resonance circuit 35 in which at least one resonance coil 31 and at least one resonance capacitor 32 are connected in series, and each of which has one capacitor. Circuit. In FIG. 1 and FIG. 3, two additional circuits are connected and denoted by reference numerals 37 and 38, respectively. The additional circuits 37 and 38 have one capacitors 51 and 52, respectively. The device 3 further includes a case (housing) 33 that accommodates the series resonance circuit 35 and the additional circuits 37 and 38, a wiring 34 for connecting the series resonance circuit 35 to the lead storage battery 4, and the additional circuits 37 and 38. The wiring 55 and 56 for connecting to the lead storage battery and the resin for holding the series resonance circuit 35 inside the case 33 and protecting the series resonance circuit 35 and the additional circuits 37 and 38 from impact and heat in the engine room And a heat insulating material 36. The material of the case 33 may be metal or plastic, but is not limited thereto, and the series resonance circuit 35 and the additional circuits 37 and 38 can be protected from impact and heat, and the engine room is used. Any material that can withstand the heat inside is acceptable.

  The length of the wiring 34 is preferably as short as possible so as to reduce the resistance of the device 3 and increase the Q value (described later), and more preferably within about 1 m. Similarly, the lengths of the arrangements 55 and 56 are preferably about 0.4 m to about 1 m from the condition based on the Q value, the relationship with the resonance frequency as described later, and practical restrictions. The material of the resin or the heat insulating material 36 is not particularly limited as long as it can protect the series resonance circuit 35 and the additional circuits 37 and 38 from impact and heat inside the engine room. In addition, it is preferable that these components which comprise the apparatus 3 satisfy | fill quality, such as that heat resistance is high, DC resistance is low, and Q value is large. The resonance coil 31, the resonance capacitor 32, and the capacitors 51 and 52 will be described later.

  2 and 3, the device 3 is connected to the lead storage battery 4 so that the series resonance circuit 35 and the additional circuits 37 and 38 and the lead storage battery 4 are connected in parallel. The connection between the device 3 and the lead storage battery 4 can be performed by a method well known to those skilled in the art. Lead acid batteries that can be used in the present invention are all types of lead acid batteries such as bent lead acid batteries and control valve type lead acid batteries. It should be noted that lead-acid batteries that are significantly deteriorated, such as those in which the electrode is damaged or deformed, or those that are physically damaged such as an internal short circuit between the positive electrode and the negative electrode of the electrode, are effective according to the present invention. Note that may not be available. A lead-acid battery in which an electrode is damaged and deformed is a battery that is deformed by preventing the precipitation of lead at the negative electrode during sulfation and preventing uniform growth of the electrode. The internal short circuit of the electrode is a short circuit between the positive and negative electrodes caused by the deposit of lead sulfate deposited on the internal components.

  The inductance L of the resonance coil 31 of the series resonance circuit 35 and the capacitance C of the resonance capacitor 32 indicate that the resonance frequency of the series resonance circuit 35 is an attenuation wave generated by the charging power source (also referred to as “alternator”) 1 (many In this case, the frequency is adjusted so as to be substantially synchronized with the frequency of the sine wave. The charging power source 1 is a device for converting mechanical energy transmitted along with the rotation of the engine into electric energy (AC power). The AC power generated by the charging power source 1 is converted into DC power by the rectifier 2. After the conversion, it is stored in the lead storage battery 4. The charging power source 1 and the rectifier 2 may be collectively referred to as a charging power source. In this case, the attenuation wave to be used is strictly generated by the rectifier 2. Details of the attenuation wave will be described later.

  Each of the additional circuits 37 and 38 forms a resonance circuit by the C of the capacitors 51 and 52 and the L component of the wirings 55 and 56 constituting the circuit. The capacitance C of the capacitors 51, 52 of the additional circuits 37, 38 is selected so that the resonance of the additional circuits 37, 38 does not cancel each other between the series resonant circuit 35 and each additional circuit 37, 38. The Therefore, the number of additional circuits that can be used in the present apparatus is determined by the relationship between the resonance frequencies.

  Although the performance of the lead storage battery is maintained by the present invention, that is, the reduction in electric capacity is prevented and the torque and output of the engine are improved, the mechanism of action has not been clarified in detail at this time. The inventors of the present invention generally presume as follows. In the apparatus according to the present invention, it is considered that the series resonance circuit contributes to maintaining the performance of the lead-acid battery, and one or more additional circuits contribute to improvement of engine torque and output. FIG. 4 is a schematic diagram of waveforms detected when the voltage between the positive electrode and the negative electrode of the lead storage battery 4 is measured with an oscilloscope in an automobile in which the engine is operating. Between the electrodes of the lead-acid battery 4, mainly (1) a wave generated by the operation of the charging power source 1 (A in FIG. 4), (2) a wave of a voltage drop accompanying plug ignition (B in FIG. 4) ), (3) Three types of waves, a wave having a large wavelength (C in FIG. 4) generated as the belt of the charging power source 1 rotates, are detected. Among them, the wave (1) (A in FIG. 4) is detected after a voltage drop (B in FIG. 4) accompanying plug ignition. As a precursor to the occurrence of the attenuation wave, the voltage between the electrodes of the lead storage battery decreases because a large amount of current is consumed for charging the ignition coil, which is one index for identifying the above-described attenuation wave. The wave of (1) looks like a pulse on the horizontal axis (time) scale (unit time 20 ms) in FIG. 4, but when the scale is enlarged, for example, the attenuation shown in the lower part of FIG. It turns out to be a wave. This wave is an attenuation wave used in the present invention, that is, an attenuation wave generated by the charging power source 1. As shown in FIG. 4, such a decaying wave is periodically generated from the charging power source 1 as the charging power source 1 operates, that is, generates power.

  FIG. 6 shows an example of a circuit diagram (a) of the series resonant circuit 35 and an impedance frequency characteristic (b) of the circuit 3 in the device 3 according to an embodiment of the present invention. According to the example of FIG. 6, it can be seen that a portion of | Z | indicating the series resonance point fs appears in the vicinity of 250 kHz. The series resonance point fs is given by the following equation (1), where L is the inductance of the resonance coil 31 and C is the capacitance of the resonance capacitor 32.

The device 3 including the series resonance circuit 35 having the circuit configuration shown in FIG. 6 is connected to the lead acid battery 4 of the automobile as shown in FIGS. 2 and 3 to operate the engine (that is, the charging power source 1 is operated). Current) is generated in the series resonant circuit 35 in which the inductance L and the capacitance C are set so that a current having a frequency substantially synchronized with the attenuation wave (wave A in FIG. 4) generated from the charging power source 1 flows. Occur. This current is called “resonance current”. The upper waveform of FIG. 5 is a waveform of the resonance current that resonates with the decay wave (lower wave of FIG. 5) generated from the charging power supply 1 and flows inside the series resonance circuit 35.

  On the other hand, FIG. 7 shows an example of an equivalent circuit diagram (a) of the lead storage battery 4 and an impedance frequency characteristic (b) of the circuit as viewed from the charging power source 1 side. As shown in FIG. 7B, the impedance of the lead storage battery 4 shows a constant low value in the low frequency region, but increases as the frequency increases in the high frequency region. Accordingly, the equivalent circuit of the lead storage battery 4 is formed as a circuit having a resistance component rb and an inductance component Lb as shown in FIG. Here, it is considered that the circuit formed by the inductance component of the lead storage battery 4 and the series resonance circuit 35 forms a parallel resonance circuit when viewed from the charging power source 1 side. FIG. 8 is an example of an equivalent parallel resonance circuit diagram (a) and an impedance frequency characteristic (b) viewed from the charging power source 1 side when the device 3 according to an embodiment of the present invention and the lead storage battery 4 are connected in parallel. It is. The parallel resonance circuit shown in FIG. 8A is a parallel resonance circuit 36 formed by C and L of the series resonance circuit 35 and Lb of the lead storage battery 4. If the resonance frequency fb of the parallel resonance circuit 36 is considered as rb << ωLb and rb is omitted,

It becomes.

  Here, looking at the relationship between the resonance frequency fs of the series resonance circuit 35 and the resonance frequency fb of the parallel resonance circuit 36 constituted by the inductance components of the series resonance circuit 35 and the lead storage battery 4, fb and fs are close to each other. (This is achieved by setting the Q value in a range as will be described later). A low portion of | Z | indicating a series resonance point appears in the vicinity of 250 kHz and | Z indicating a parallel resonance point. A high portion of | appears in the vicinity of 200 kHz. When the inductance L and the capacitance C of the series resonance circuit 35 are adjusted so that a current having a frequency approximately tuned to the frequency of the attenuation wave flows in the series resonance circuit 35, the resonance frequency fb close to the resonance frequency fs of the series resonance circuit 35 is obtained. A large resonance current flows in the parallel resonance circuit 36 having the same.

  In this way, every time a decay wave is generated from the charging power source 1, the resonance current generated in the series resonance circuit 35 of the device 4 flows into the lead storage battery 4. The amplitude of the resonance current is larger than the amplitude of the attenuation wave generated from the charging power source 1 and is about 1.5 times to about 20 times. Further, since a decay wave is periodically generated from the charging power source 1, the next resonance current is generated before the generated resonance current is attenuated and completely disappears. That is, the resonance current always flows through the lead storage battery 4. Therefore, since the vibration due to the resonance current is continuously applied to the electrode plate, a lead sulfate film is not generated on the electrode plate of the lead storage battery 4, and the electric capacity (ie, performance) of the lead storage battery 4 is maintained. Conceivable.

  On the other hand, the electrode of the lead storage battery is formed as a spongy electrode having a large number of pores of various sizes on the surface in order to increase the surface area and increase the electric capacity of the lead storage battery. When currents of various frequencies are given to the pores existing in the sponge-like electrode, it is considered that current lines extend to pores of various sizes, and the active surface of the electrode increases. The inventors of the present application can effectively generate sulfation in these pores immediately after use of the lead-acid battery by applying currents of various frequencies to pores of various sizes existing on the electrode surface. Therefore, the effective surface area of the electrode does not decrease, and the internal impedance of the lead-acid battery is maintained at a low state. As a result, the engine torque and output can be improved. We believe that it is effective to flow a resonance current of a frequency suitable for various natural frequencies of a pore having a large size through a lead-acid battery. In order to realize this, the present invention is characterized by using one or a plurality of additional circuits.

  Each of the one or more additional circuits forms a resonance circuit by the capacitor C and the L component of the wiring. By connecting these additional circuits, each functioning as a resonant circuit, having different series resonant frequencies that do not cancel each other's resonances, in parallel to the lead acid battery, the various frequencies generated by the one or more additional circuits. Resonant current flows into pores of various sizes, and this resonant current suppresses dendrite growth by the mechanism of action described above, and as a result, an effect of improving engine torque and output appears. It is done. The trigger for operating one or more additional circuits is a wave detected immediately after the voltage drop (wave B in FIG. 4) of the voltage applied to the ignition coil. This wave includes waves of various frequencies, and one or a plurality of additional circuits each having a different resonance frequency resonate with a wave of any one of the waves included in the wave, It is considered that the resonance current generated by the resonance suppresses the generation of sulfation in pores having various sizes.

  The attenuation wave generated from the charging power source 1 varies depending on the type of the charging power source 1 (depending on the manufacturer of the charging power source 1), the temperature environment, and the rotation speed, but the frequency is about 50 kHz to about 350 kHz, and the amplitude is about 30 mV. ~ 450 mV. The attenuation wave is generated immediately after the plug of the engine is ignited in accordance with the operation of the power supply 1 for charging, and the cycle is (engine speed × engine cylinder number ÷ 60) times / second. The attenuation wave generated from the charging power supply 1 is, for example, a wave having a waveform as shown in A of FIG. 4 and the lower part of FIG. The frequency of the attenuation wave may be considered to be substantially constant as shown in the embodiment, although it slightly changes depending on the engine speed in the same charging power source.

  The resonance coil 31 and the resonance capacitor 32 used in the series resonance circuit 35 according to one embodiment of the present invention are connected in series at the resonance frequency fs in order to generate a larger resonance current in the series resonance circuit 35 at the resonance frequency. The impedance | Z | of the resonance circuit 35 is preferably selected to be as low as possible, and specifically, the impedance | Z | is preferably selected to be about 0.1Ω or less. Therefore, it is preferable to use a coil 31 having a small winding resistance and a capacitor 32 having a small ESR. By selecting the coil 31 having a small winding resistance and the capacitor 32 having a low ESR, a series resonance circuit 35 having a high Q value, that is, a resonance peak (for example, an impedance frequency characteristic diagram shown in FIG. 6B) can be seen. A series resonance circuit 35 having a sharp peak can be configured. The Q value is a dimensionless number representing the sharpness of the resonance peak of the resonance circuit, and is expressed by the following equation (3), where R is the resistance of the resonance circuit, L is the inductance, and fs is the resonance frequency.

The Q value of the series resonant circuit 35 according to the present invention is preferably greater than about 10 and preferably less than about 450. By selecting the components of the device 3 so that the Q value of the series resonance circuit 35 is larger than about 10, a sharp peak can be obtained at the resonance point, and the series resonance point fs and the parallel resonance point fb are closer to each other. It becomes possible to make it. Therefore, if the coil 31 and the capacitor 32 are selected so that a current having a frequency substantially tuned to the frequency of the attenuation wave flows, a large resonance current stably flows in the parallel resonance circuit. However, if the Q value is about 450 or more, fs and fb are too close to each other and the usable frequency band is narrowed, so that the function does not function as the frequency of the attenuation wave varies (that is, the frequency of the attenuation wave resonates). Since the frequency fs or fb falls outside the range, the resonance current may not flow). Note that the series resonance circuit of the device 3 according to the present invention may be formed by connecting a plurality of series resonance circuits 35 in parallel. This is more effective because the impedance at the resonance frequency of the device 3 can be further reduced.

  The resonance coil 31 used in the series resonance circuit 35 of the device 3 according to the embodiment of the present invention has an inductance of about 3 μH to about 20 μH, depending on the type of the charging power source 1, that is, the frequency of the attenuation wave generated. The coil has about 5 to about 10 turns of wire. The winding resistance of the coil 31 is preferably smaller than about 10 mΩ and more preferably smaller than about 5 mΩ so that the Q value of the series resonant circuit 35 is increased. It is preferable that the resonance coil 31 has a small change in magnetic permeability due to heat so that the influence of heat received by mounting the reproducing apparatus on the vehicle is reduced. In addition, since the current flowing in the circuit constituted by the series resonance circuit 35 and the lead storage battery 4 varies greatly with time, the resonance coil 31 is not transparent by current so that the magnitude of inductance due to current does not change. It is preferable that the change in magnetic susceptibility is small. As the resonance coil 31, it is preferable to use an amorphous choke coil in which a change in physical property value due to temperature is small. In order to reduce the resistance component of the coil, the diameter of the winding is preferably larger than about 1 mm.

  The resonance capacitor 32 used in the series resonance circuit 35 of the device 3 according to the embodiment of the present invention is preferably a film capacitor and more preferably a metallized film capacitor from the viewpoint of reducing ESR as described above. The resonance capacitor 32 has a capacitance of 0.01 μF to 10 μF depending on the type of the charging power source 1, that is, the frequency of the generated attenuation wave. The ESR of the capacitor 32 is preferably smaller than about 50 mΩ, and more preferably smaller than about 15 mΩ so that the Q value of the series resonant circuit 35 is increased. Further, since a large resonance current flows in the circuit, it is preferable to use a capacitor 32 having a ripple current larger than about 1A.

  In one embodiment of the present invention, the series resonant circuit 35 is configured as follows. First, the frequency of the attenuation wave (A in FIG. 4) of the observed waveform is obtained by connecting an oscilloscope to the electrode of the lead storage battery 4 of the vehicle in which the engine is operating, for example, by a method well known to those skilled in the art. Measure. As described above, this attenuation wave is a wave generated by the charging power source 1 and varies depending on the type of the charging power source 1. Next, the inductance L of the resonance coil 31 of the series resonance circuit 35 and the capacitance C of the resonance capacitor 32 are set so that the series resonance circuit 35 resonates at a frequency fs that is substantially close to the frequency of the measured attenuation wave. In setting, first, the resonance coil 31 having the characteristics already described is selected. Here, if the resonance coil 31 having a large inductance L is selected, the Q value can be increased as can be seen from the equation (3). However, in order to increase the inductance L, it is necessary to increase the number of windings. There is. However, a coil having a large number of turns has a large resistance R, and as a result, a necessary Q value may not be obtained. Therefore, the range of the inductance L is preferably about 3 μH to about 20 μH as described above. Next, the capacitance C is determined by the equation (1) from the inductance L of the selected resonance coil 31 and the appropriate resonance frequency fs (that is, the series resonance circuit resonates with the generated damped wave). The resonance capacitor 32 having such C is selected.

  Note that the order of selecting the resonance coil 31 and the resonance capacitor 32 may be reversed. That is, the resonance capacitor 32 having the characteristics as described above is selected, then the inductance L is determined from the capacitance C of the resonance capacitor 32 and the resonance frequency fs, and the resonance coil 31 having such L is selected. You may make it select. By connecting the resonance coil 31 and the resonance capacitor 32 selected as described above in series, the series resonance circuit 35 in which the inductance L and the capacitance C are appropriately adjusted can be formed.

  The resonance current generated inside the series resonance circuit 35 constituted by the resonance coil 31 and the resonance capacitor 32 as described above and flowing inside the parallel resonance circuit constituted by the series resonance circuit and the lead storage battery is expressed as Is about 50 kHz to about 350 kHz which is substantially the same as the attenuation wave, and the amplitude is about 1.5 to about 20 times the attenuation wave. For example, the resonance current generated by the attenuation wave as shown in the lower part of FIG. 5 is a wave as shown in the upper part of FIG.

  The capacitors 51 and 52 used in the additional circuits 37 and 38 of the device 3 according to the embodiment of the present invention are preferably film capacitors and more preferably metallized film capacitors from the viewpoint of reducing ESR, as in the series resonant circuit 35. preferable. The capacitances of the capacitors 51 and 52 are set as follows.

The additional circuits 37 and 38 are each the series resonance point fs (frequency corresponding to the valley portion of the impedance in FIG. 8B), as described above for the series resonance circuit 35. fs ₁ , fs ₂ ,..., and a parallel resonance point fb (frequency corresponding to the peak of the impedance in FIG. 8B. Here, fb ₁ , fb ₂ ,.・) Since the series resonance circuit 35 resonates using the attenuation wave as described above, its fs is determined by the type of the power supply for charging. Therefore, fs ₁ and fs ₂ of the additional circuits 37 and 38 do not cancel resonance between fs and fs ₁ and fs ₂ of the series resonance circuit 35 determined by the vehicle to which the device 3 is attached, and fs ₁ and fs ₂ Are selected so that the peaks of the parallel resonance frequency fb and the valleys of the series resonance frequency fs of the series resonance circuit 35 and the additional circuits 37 and 38 do not overlap each other. The FIG. 9 is an example of a simulation performed to determine the frequency so that the resonances do not cancel each other. This simulation was performed using impedance analysis software “Zview” (manufactured by Solartron). FIG. 9A shows the relationship between the frequency and the impedance when the resonance does not cancel out, and FIG. 9B shows the relationship between the frequency when the resonance cancels out. In FIG. 9B, it can be seen that fs ₁ and fs ₂ are close to each other and the resonances cancel each other. Therefore, as shown in FIG. 9A, fs ₁ and fs ₂ are determined so that the crest and trough of the frequency of each circuit do not cancel each other. method for determining the fs ₁ and fs _2, such simulation software is not limited to be performed using, fs ₁ and fs as the peaks and valleys of the frequency is not not cancel each other respective circuit Any method may be used as long as ₂ can be determined.

From the results of experiments by the inventors, fs ₁ and fs ₂ of the additional circuits 37 and 38 according to the present invention are preferably set to any frequency in the range of about 50 kHz to about 1.5 MHz. Unlike the series resonance circuit 35 in which the resonance frequency to be adjusted is determined by the charging power source 1, the additional circuit in the present invention does not need to match the resonance frequency strictly, and therefore uses the L component of the wiring without using a coil. Therefore, it is preferable to configure as a resonance circuit. However, the additional circuit can also be configured using a coil. In the case where the additional circuit to be used in the apparatus according to the present invention is an additional circuit having a low resonance frequency, the resonance circuit can be configured by using a coil. However, the additional circuit to be used has a high frequency. In some cases, there may be no coil that satisfies the conditions required for the present invention. Further, if the additional circuit is configured without using the coil, there is an advantage that the resistance of the wiring is changed in accordance with the change in the temperature of the engine room to which the device is attached, and the resonance frequency can be changed accordingly. As described above, there are pores of various sizes in the electrode of the lead storage battery, and it is considered that a resonance current suitable for one of the pores flows by changing the resonance frequency. The L component of the wiring depends on factors such as the wiring diameter a, the wiring length l, and the shape of the wiring, and these factors are determined by practical restrictions for mounting the device on the vehicle. Is decided. Then, the addition circuits 37 and 38 which are set in this manner from the series resonance frequency fs ₁ and fs _2, (1) by equation of the capacitance C of the capacitor 51 and 52 to obtain the resonance frequency of fs ₁ and fs ₂ The value is determined. When the additional circuits 37 and 38 are configured using coils, the conditions of the coils to be used are the same as those of the resonance coil 31 of the series resonance circuit 35, and the coil L and the capacitor C are in series resonance. As with circuit 35, resonance frequencies fs ₁ and fs ₂ are selected to be obtained.

  As with the series resonant circuit 35, the Q values of the additional circuits 37 and 38 are preferably greater than about 10 and preferably less than about 450. By selecting components so that the Q values of the additional circuits 37 and 38 are larger than about 10, a sharp peak can be obtained at the resonance point, and the series resonance point fs and the parallel resonance point fb can be made closer to each other. Is possible. However, if the Q value is about 450 or more, fs and fb are too close to each other and the usable frequency band is narrowed, so that there is a possibility that the function may not function. By appropriately selecting the Q value in this way, the series resonance point fs and the parallel resonance point fb are appropriately close to each other so that resonance is not canceled between the series resonance circuit 35 and the additional circuits 37 and 38. It becomes easy to adjust the frequency. The number of additional circuits is two in FIGS. 1 and 3, but is not limited as long as the resonance frequency can be adjusted so as not to cancel resonance between the series resonance circuit and the plurality of additional circuits.

Example 1
One amorphous choke coil (manufactured by Nippon Chemi-Con Corporation, part number: LBBM0403R4X7-VoE) and one metallized polypropylene film capacitor (manufactured by Nippon Chemi-Con Corporation, part number: FTACD102V474 ELHZ0) are connected in series to form a series resonance circuit. did. The device in which this series resonant circuit is put in a case and sealed with resin is mounted on a lead-acid battery (G & Yu, 75D23L) with degraded performance mounted on a passenger car (Toyota Fun Cargo, 2000, model NCP-20). Connected in parallel. The passenger car engine was then started.

  The waveforms detected between the electrodes of the lead-acid battery of the passenger car when the engine is operating are shown in FIG. 10 (waveform at idling) and FIG. 11 (waveform at 3,000 engine revolutions). The attenuation wave used was generated at a cycle of about 40 ms when idling, and was generated at a cycle of about 10 ms at an engine speed of 3,000 rpm. Waves obtained by enlarging one of the attenuation waves (A wave) in FIGS. 10 and 11 are shown in the lower part of FIGS. 12 and 13, respectively. The attenuation wave (lower stage in FIG. 12) generated during idling from the charging power supply (alternator, product number: 27060-21030) mounted on the passenger car had a frequency of about 83 kH and a maximum amplitude of about 400 mV. In addition, the attenuation wave generated at 3,000 revolutions (the lower part of FIG. 13) also had a frequency of about 83 kHz and a maximum amplitude of about 400 mV. Resonant current that resonates with these damped waves and flows through the series resonant circuit and the lead-acid battery has a frequency as shown in the upper part of FIGS. 12 and 13 both at idling and at 3,000 engine revolutions. It was about 83 kHz and the maximum amplitude was about 800 mA. In FIGS. 10 and 11, the attenuation wave is only in the upper part of the drawing (for example, in the case of the attenuation wave in FIG. 10A) or lower part (for example, in the case of the second attenuation wave from the right in FIG. For example, the magnitude of the peak of the wave in FIG. 10 and FIG. 11A appears to be smaller than the amplitude of the corresponding attenuation wave in the lower part of FIG. 12 and FIG. In FIG. 10 and FIG. 11, as a result of widening the time axis in order to slowly measure the entire lead-acid battery terminal voltage, the sampling frequency of the oscilloscope is lowered, and the attenuation wave is completely eliminated on the screen. This is probably because it cannot be reproduced. Actually, the damped wave vibrates up and down as shown in the schematic diagram of FIG. 4. This is apparent from the lower waveform of FIGS. 12 and 13 corresponding to FIGS. is there.

  FIG. 14 is a result showing that the lead-acid battery has been recovered by connecting the device configured as described above to the deteriorated lead-acid battery and running the passenger car. The actual travel distance in the figure represents the distance (unit km) actually traveled from that time when the device was connected to the lead-acid battery as 0 km. The voltage is the voltage (unit V) between the terminals of the lead storage battery, and the specific gravity is the specific gravity of each electrolyte of the six cells of the lead storage battery. The specific gravity of the lead storage battery at the time of the actual travel distance of 0 km, that is, before regeneration, was 1.2 even at the highest cell and decreased to 1.12 at the lowest cell. After the installation of the device, the specific gravity of all the cells increased, and the specific gravity of the lead storage battery when traveling about 900 km was 1.26 for the highest cell, and 1.17 even for the cell that was 1.12 before regeneration. It became. Also, the voltage was 12.01 V, but increased to 12.50 V when traveling about 900 km.

(Example 2)
A new lead-acid battery (Furukawa Battery, 46B24R, SUPER NOVA) was mounted on a passenger car (Toyota Fun Cargo, 2000 model, model NCP-20), and the vehicle traveled 1,932 km. After running, the voltage of the lead storage battery was measured using a battery tester (MDX-P300, manufactured by MIDTRONICS), and at the same time, the specific gravity of the electrolyte and the internal impedance of the battery were measured by the AC impedance method. Next, the apparatus configured in the same manner as in Example 1 was run in parallel with a lead storage battery mounted on a passenger car, and at each time point of 1,200 km, 2652.7 km, and 3,220 km, the voltage and specific gravity of the lead storage battery , And the internal impedance was measured. The measurement was performed after the lead-acid battery was removed from the passenger car and kept in a resting state at room temperature of 20 to 25 ° C. for 8 to 24 hours.

  15-17 is a figure which shows the change of the voltage of a lead acid battery, specific gravity, and an internal impedance by driving | running | working distance. In these drawings, the time when the travel distance is 0 km indicates the time when the device is attached to the lead-acid battery, the travel distance before connection is shown as a negative distance, and the travel distance after connection is shown as a positive distance. . The values of the voltage, specific gravity, and internal impedance before the lead storage battery is mounted on a vehicle and used, that is, when the lead storage battery is new, are indicated by points where the travel distance is -1,932 km.

  FIG. 15 is a diagram illustrating a change in the voltage of the lead storage battery according to the travel distance. The horizontal axis indicates the travel distance, and the vertical axis indicates the voltage. Before the lead storage battery was mounted on a vehicle and used, the voltage of the lead storage battery was 12.84V. It can be seen that the voltage of the lead-acid battery maintains the original voltage even after traveling 3,220 km with the device attached to the lead-acid battery.

  FIG. 16 is a diagram showing a change in the specific gravity of the electrolyte of the lead storage battery according to the travel distance. The horizontal axis indicates the travel distance, and the vertical axis indicates the specific gravity. The cell numbers were Cell 1 to Cell 6 from the positive electrode side cell toward the negative electrode side cell. Before the lead storage battery was installed in a vehicle and used, the specific gravity of any cell showed a value of 1.27 to 1.28, and the variation in specific gravity among the cells was small. When a lead storage battery was mounted on a vehicle and the apparatus was run without being attached to the lead storage battery, the specific gravity decreased in any cell, and the variation in specific gravity among the cells increased. After that, when the vehicle was run with the device attached to the lead storage battery, the specific gravity of each cell increased again as the travel distance increased, and the variation in specific gravity among the cells was reduced.

  FIG. 17 is a diagram showing a change in the internal impedance frequency characteristics of the lead storage battery according to the travel distance. The horizontal axis represents frequency, and the vertical axis represents internal impedance. The internal impedance of the lead-acid battery showed a small value before the lead-acid battery was mounted on the vehicle and used, but when the device was run 1,932 km without being attached to the lead-acid battery (indicated by □ in FIG. 16) Data) showed a significant increase in all frequency bands. After that, when driving with 2652.7 km with the device attached to a lead-acid battery, the internal impedance decreases to the same level as before use, and a small value is almost maintained even when driving for 3,220 km. I understand.

(Example 3)
One amorphous choke coil (manufactured by Nippon Chemi-Con Corporation, product number: LBBM0403R4X7-VoE) and one metallized polypropylene film capacitor (manufactured by Nippon Chemi-Con Corporation, product number: FTACD102V274KELHZ0) were connected in series to form a series resonance circuit. . In addition, a first additional circuit is configured using one metallized polypropylene film capacitor (Nippon Chemi-Con Corporation, product number: FTACD102V564KFLEZ0) and wiring, and one metallized polypropylene film capacitor (Nippon Chemi-Con Corporation, product number: FTACD102V124KDLGZ0). And a second additional circuit using the wiring. A device in which these circuits were put in a case and sealed with resin was connected in parallel to a lead-acid battery (manufactured by Yuasa, 46B24) mounted on a passenger car (Toyota Raum 2003 model, model UA-NCZ25). The resonance frequency of the series resonance circuit was 111 kHz, the resonance frequency of the first additional circuit was 268 kHz, and the resonance frequency of the second additional circuit was 510 kHz. The output and torque of the passenger car when the apparatus constructed as described above was installed, and the output and torque of the passenger car when the apparatus was not installed were measured by a BOSCH FLA206 roller type power measurement system. The measured maximum power and maximum torque when the device was not installed were 76.3 kW (103.8 ps) and 144 N · m (14.6 kgf · m), respectively. The measured values of maximum output and maximum torque when the device is attached are the average values of the two measured values of 80.2 kW (109.1 ps) and 150.0 N · m (15.3 kgf · m), respectively. It can be seen that the output and torque are improved compared to the case where the device is not installed.

Example 4
One amorphous choke coil (manufactured by Nippon Chemi-Con Corporation, product number: LBBM0403R4X7-VoE) and one metallized polypropylene film capacitor (manufactured by Nippon Chemi-Con Corporation, product number: FTACD102V474KELHZ0) were connected in series to form a series resonance circuit. . Also, the first additional circuit is configured by using one metallized polypropylene film capacitor (manufactured by Nippon Chemi-Con Corporation, product number: FTACD102V564KFLEZ0) and wiring (manufactured by Hitachi Cable, Ltd., MLFCIII0.75 sq), and one metallized polypropylene film capacitor. (Nippon Chemicon Co., Ltd., product number: FTACD102V124KDLGZ0) and wiring (Hitachi Cable Co., Ltd., MLFCIII 0.75 sq) were used to configure the second additional circuit. A new lead-acid battery (Furukawa Battery Co., Ltd., 46B24R, Super Nova) mounted on a passenger car (Toyota Fun Cargo, 2000 model, model NCP-20) is a device in which these circuits are encased in resin. ) In parallel. The vehicle was driven at a constant speed on the highway with and without the device constructed as described above, and the time change of the throttle sensor voltage of the passenger car was examined. For the throttle sensor voltage, an independent battery completely disconnected from the car charging circuit is used as the power source for measuring machine operation. The data logger GL200 made by GRAPHTEC is connected to this, and it exists under the passenger compartment glove box in the passenger car. Wiring was taken out from the throttle voltage sensor of the engine control computer (TPYOTA 89661-52361 211000-7401 12V 2NZ-FE AT) and connected to a data logger for measurement. The level of the throttle sensor voltage corresponds to the magnitude of the throttle opening, and the fact that the throttle sensor voltage is low at the same place during constant speed traveling is an index indicating that the output and torque are large.

  FIG. 18 shows the throttle sensor voltage (V) when driving at constant speed at a speed of about 100 km / h for a distance of about 85.1 km to Iwaki Yumoto IC when the time of departure from Mito IC on the Joban Expressway is 0 second. Shows time change. In addition, in FIG. 19, when the departure from Shinkawa IC on the Sasaru Expressway is 0 second, the distance to the Fukagawa IC on the Doo Expressway is about 108.8km from about 80km / h to about 100km / h (depending on the section) Shows the time change of the throttle sensor voltage (V) when traveling at a constant speed. In the figure, the data “without BAC” is the result when the device is not attached, and the data “with BAC” is the result when the device is attached. In any of the figures, the positions at which the peak of the throttle sensor voltage appears are almost equal, so that it can be seen that the vehicle is traveling in the same place when the device is attached and when the device is not attached at substantially the same elapsed time. When the device is attached, the change in the throttle sensor voltage is smaller immediately after the attachment than when the device is not attached. This indicates that the constant speed can be maintained without greatly changing the amount of depression of the accelerator by attaching the device, and it is considered that the output and torque of the passenger car are improved.

It is a figure which shows the apparatus which concerns on one Embodiment of this invention, (a) The state which opened the lid | cover of the apparatus and exposed internal resin or heat insulating material, (b) Furthermore, resin or heat insulating material was removed and the apparatus inside This represents a state in which the parts are visible. It is a block diagram showing the state which connected the apparatus which concerns on one Embodiment of this invention to the lead acid battery mounted in the motor vehicle. It is a block diagram showing the state which connected the apparatus which concerns on one Embodiment of this invention to the lead acid battery mounted in the motor vehicle. It is a schematic diagram of the waveform detected when the voltage between the positive electrode and negative electrode of a lead storage battery is measured with an oscilloscope in an automobile in which an engine is operating. It is a schematic diagram of the damped wave (lower stage) and the resonance current (upper stage) used in the present invention. It is the circuit diagram (a) of the series resonance circuit in the apparatus which concerns on one Embodiment of this invention, and the impedance frequency characteristic figure (b) of the said circuit. It is the equivalent circuit figure (a) of the lead storage battery seen from the power supply side for charge, and the impedance frequency characteristic figure (b) of the said circuit. It is the equivalent parallel resonance circuit figure (a) and impedance frequency characteristic figure (b) seen from the power supply side for charge at the time of connecting the apparatus and lead acid battery which concern on one Embodiment of this invention in parallel. It is a figure which shows an example of the simulation for demonstrating the case where a resonance does not cancel and the case where a resonance cancels. It is a figure which shows the waveform detected between the electrodes of the lead acid battery of a passenger car at the time of engine operation (at the time of idling). It is a figure which shows the waveform detected between the electrodes of the lead acid battery of a passenger car at the time of engine operation (at the time of 3,000 rotation). It is a figure which shows the attenuation | damping wave (lower stage) which generate | occur | produced from the power supply for charge at the time of engine operation (at the time of idling), and the resonance current (upper stage) which flowed through the apparatus and lead acid battery. It is a figure which shows the attenuation | damping wave (lower stage) which generate | occur | produced from the power supply for charge at the time of engine operation (at the time of 3,000 rotation), and the resonance current (upper stage) which flowed to the apparatus and lead acid battery. It is a figure which shows the change of the voltage and specific gravity of a lead storage battery when a passenger car is drive | worked in the state which connected the lead storage battery reproduction | regeneration maintenance apparatus to the lead storage battery. It is a figure which shows the change of the voltage of a lead storage battery with a travel distance. It is a figure which shows the change of the specific gravity of the electrolyte solution of a lead storage battery with a travel distance. It is a figure which shows the change of the internal impedance of a lead storage battery by a travel distance. It is a figure which shows the time change of throttle sensor voltage (V). It is a figure which shows the time change of throttle sensor voltage (V).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Charging power supply 2 Rectifier 3 Lead storage battery regeneration maintenance device 31 Resonance coil 32 Resonance capacitor 33 Case 34 Wiring 35 Series resonance circuit 36 Resin or heat insulating material 37, 38 Additional circuit 4 Lead acid batteries 51, 52 Capacitors 55, 56 Wiring

Claims (9)

A device for preventing a decrease in the electric capacity of the lead storage battery and increasing the torque and output of the engine,
A series resonant circuit including at least one coil and at least one capacitor and connected in parallel to the lead acid battery by wiring;
One or more circuits including at least one capacitor and connected in parallel to the lead acid battery and the series resonant circuit by wiring;
With
The current having a frequency at which the inductance of the at least one coil of the series resonant circuit and the capacitance of the at least one capacitor are approximately synchronized with the frequency of the attenuation wave generated from the charging power source for charging the lead storage battery is It is adjusted to flow inside a circuit constituted by a series resonance circuit and the lead acid battery, and each of the one or more circuits is selected so as not to cancel resonance with the series resonance circuit. Characterized by having a series resonance frequency that is reduced.   The apparatus of claim 1, wherein the series resonant frequency of each of the one or more circuits is selected so as not to cancel resonances with each other.   The apparatus of claim 1, wherein the at least one capacitor of the series resonant circuit and the at least one capacitor of the one or more circuits are film capacitors or metallized film capacitors.   The apparatus of claim 1, wherein the one or more circuits further comprises at least one coil connected in series with the at least one capacitor.   The apparatus of claim 1, wherein the series resonant circuit and the one or more circuits have a Q value of 10-450.   The apparatus according to claim 1, wherein the frequency of the attenuation wave is 50 kH to 350 kH.   The apparatus of claim 2, wherein the lowest series resonant frequency of the series resonant frequency of the one or more circuits is greater than 50 kHz.   The apparatus of claim 2, wherein a highest series resonant frequency among the series resonant frequencies of the one or more circuits is less than 1.5 MHz.   The apparatus according to claim 1, wherein each of the one or more circuits resonates with a wave generated immediately after a voltage drop of an applied voltage of the ignition coil to generate a resonance current.