WO2022138412A1 - Protection control device for engine starting battery - Google Patents

Protection control device for engine starting battery Download PDF

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Publication number
WO2022138412A1
WO2022138412A1 PCT/JP2021/046406 JP2021046406W WO2022138412A1 WO 2022138412 A1 WO2022138412 A1 WO 2022138412A1 JP 2021046406 W JP2021046406 W JP 2021046406W WO 2022138412 A1 WO2022138412 A1 WO 2022138412A1
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WO
WIPO (PCT)
Prior art keywords
battery
engine
control ecu
predetermined value
control device
Prior art date
Application number
PCT/JP2021/046406
Other languages
French (fr)
Japanese (ja)
Inventor
明洋 石山
紘之 成田
健太朗 牧田
Original Assignee
三菱重工メイキエンジン株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱重工メイキエンジン株式会社 filed Critical 三菱重工メイキエンジン株式会社
Priority to KR1020237004746A priority Critical patent/KR20230035644A/en
Publication of WO2022138412A1 publication Critical patent/WO2022138412A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04—Regulation of charging current or voltage

Definitions

  • the present disclosure relates to a protective control device for a battery for starting an engine.
  • This application claims priority based on Japanese Patent Application No. 2020-216418 filed with the Japan Patent Office on December 25, 2020, the contents of which are incorporated herein by reference.
  • Patent Document 1 discloses a power supply monitoring device.
  • a power supply monitoring device includes a remaining amount detecting means for detecting the remaining amount of the storage battery as a power source when starting the engine of the vehicle, and a plurality of residuals preset for each of a plurality of in-vehicle devices using the storage battery as a power source. It is provided with a storage means for storing the quantity determination value. Each time the remaining amount of the storage battery falls below each remaining amount determination value, such a power supply monitoring device limits the operation of the in-vehicle device corresponding to the remaining amount determination value.
  • the power supply monitoring device (protection control device for the engine starting battery) disclosed in Patent Document 1 is intended to suitably suppress over-discharging of the storage battery (engine starting battery), and is a storage battery. It does not properly protect (engine starting battery) from over-discharging.
  • the present disclosure has been made in view of the above-mentioned problems, and an object of the present disclosure is to provide a protection control device for an engine starting battery that can appropriately protect the engine starting battery from over-discharging.
  • the protection control device for the engine starting battery is It is a protection control device for the battery for starting the engine, which is the power source for the starter motor that cranks the engine.
  • a control ECU that controls charging / discharging of one or more battery cells constituting the engine starting battery, and A protection circuit that protects the one or more battery cells from overcharging and overdischarging the one or more battery cells. Equipped with The control ECU limits the supply of electricity to the starter motor when the battery voltage when the engine switch is turned on is lower than a predetermined first predetermined value.
  • the control ECU limits the supply of electricity to the starter motor when the battery voltage when the engine switch is turned on falls below a predetermined first predetermined value. Therefore, the battery for starting the engine can be appropriately protected from over-discharging.
  • FIG. 3 is a circuit diagram schematically showing a control configuration of the engine shown in FIG. 1. It is a front view of the battery unit mounted on the engine shown in FIG. 1. It is a left side view of the battery unit shown in FIG. It is a right side view of the battery unit shown in FIG.
  • FIG. 3 is a circuit diagram schematically showing a control configuration of the battery unit shown in FIG.
  • It is a perspective view schematically showing the mounting structure of the battery unit which concerns on embodiment of this disclosure, and is the figure which shows the state which removed the cover.
  • It is a flowchart which shows the control content of the protection device of the engine start battery which concerns on embodiment of this disclosure.
  • FIG. 1 is a perspective view showing an engine 1 in which the engine starting battery protection device according to the embodiment of the present disclosure is adopted, and FIG. 2 schematically shows a control configuration of the engine 1 shown in FIG. It is a figure.
  • the engine starting battery protection device is mounted on the engine 1 or a work machine (not shown) on which the engine 1 is mounted.
  • the protective device for the engine starting battery mounted on the engine 1 will be described as an example, but the scope of the present invention is not limited to this, and the engine 1 is included in the scope of the present invention. It also includes a protective device for the engine starting battery mounted on the mounted work machine.
  • the engine 1 is a single-cylinder or two-cylinder air-cooled gasoline engine having a displacement of 80 cc to 800 cc, and is, for example, a rice planting machine, a management machine, a tiller, a pump, a generator, or the like. It is mounted on the work machine.
  • the engine 1 includes a starter 3 (see FIG. 2) in addition to the recoil starter 12.
  • the recoil starter 12 is a device in which a person who intends to start the engine 1 grips the starter grip 121 and pulls a rope wound around a pulley to rotate the crankshaft of the engine 1 and start the engine 1.
  • the starter motor 3 is a motor that gives rotation to the crankshaft of the engine 1 instead of the recoil starter 12, and in the engine 1 according to the embodiment of the present disclosure, the battery unit 6 (see FIG. 2) is an electric motor of accessories including the starter motor 3. It is a source.
  • the engine 1 includes an engine switch 21 and an engine start operation switch 22.
  • the engine switch 21 is a switch for turning on / off the power supply, and is arranged on the side surface of the engine 1 in the engine 1 according to the embodiment of the present disclosure.
  • the engine switch 21 is composed of, for example, a rocker switch (also referred to as a seesaw switch), is turned on when the engine 1 is started, and is turned off when the operation of the engine 1 is stopped.
  • the engine start operation switch 22 is a switch for starting the engine 1, and is installed alongside the engine switch 21 on the side surface of the engine 1 in the engine 1 according to the embodiment of the present disclosure.
  • the engine start operation switch 22 is composed of, for example, a momentary push switch, and is pressed when the engine 1 is started by the starter motor 3.
  • the engine 1 according to the embodiment of the present disclosure further includes a switch 23 for an external device.
  • the switch 23 for an external device is, for example, a choke changeover switch 231 and is arranged on the side surface of the engine 1 in the engine 1 according to the embodiment of the present disclosure.
  • the choke changeover switch 231 is composed of, for example, a rocker switch, and can switch between auto choke and manual choke.
  • the engine 1 further includes a charge coil 13 and an ignition coil 15 in addition to the starter relay 4.
  • the starter motor relay 4 is a relay (magnetic relay switch) that opens and closes a contact 41 provided between the battery unit 6 and the starter motor 3, and when the contact 41 is closed, electricity is supplied from the battery unit 6 to the starter motor 3. Be supplied.
  • the charge coil 13 is provided inside the flywheel and is a coil for power generation generated by the rotation of the flywheel. The electricity generated by the charge coil 13 is supplied to the battery unit 6 via the regulator 14 to be charged. To.
  • the charge coil 13 Since the charge coil 13 always generates power when the engine 1 is rotating, it may have a function of grasping the operating state of the engine 1 by, for example, monitoring the presence or absence of power generation in the battery unit 6. This function makes it possible to safely start the engine 1.
  • the ignition coil 15 is provided on the outside of the fly wheel and is a generator / transformer integrated device that converts the electricity generated inside the ignition coil 15 into high-voltage electricity due to the rotation of the fly wheel, and is converted by the ignition coil 15. The generated high voltage electricity is discharged by the ignition plug 16.
  • the battery unit 6 is an electric supply source for auxiliary machinery including the starter motor 3, and supplies electricity to the starter motor 3 when the engine 1 is started, while the engine 1 (charge coil). The electricity generated in 13) is charged.
  • FIG. 3 is a front view of the battery unit 6 mounted on the engine 1 shown in FIG. 4 is a left side view of the battery unit 6 shown in FIG. 3, and FIG. 5 is a right side view of the battery unit 6 shown in FIG. Further, FIG. 6 is a circuit diagram showing a control configuration of the battery unit 6 shown in FIG.
  • the battery unit 6 has a horizontally long substantially rectangular parallelepiped shape and has a protrusion 6a protruding upward.
  • the battery unit 6 has a substantially rectangular parallelepiped shape having a length of 220 mm, a height of 75 mm, and a width of 45 mm, excluding the protrusion 6a, and its weight is suppressed to 800 g or less, and is excellent in portability.
  • the battery unit 6 includes a battery pack 61 and a start control device 7 for the engine 1 (see FIG. 6), which have a horizontally long substantially rectangular parallelepiped shape and a protrusion 62a projecting upward. It is housed in the housing 62 having the above.
  • the battery pack 61 is composed of, for example, a lithium ion battery. As shown in FIG. 6, in the battery unit 6 according to the embodiment of the present disclosure, the battery pack 61 is composed of one or more battery cells 611.
  • the unit voltage of the battery cell 611 is 3.0 to 4.2 V, and the total capacity is 6000 to 20000 mAH, which ensures portability as the battery unit 6, and in the battery unit 6 according to the embodiment of the present disclosure, for example, It is composed of four battery cells 611.
  • the start control device 7 of the engine 1 is composed of a control ECU 71 (Electronic Control Unit) that controls charging / discharging of the battery pack 61.
  • the control ECU 71 is composed of, for example, a processor including a control device and an arithmetic unit, and a control board on which a memory such as a ROM (Read Only Memory) or a RAM (Random Access Memory) is mounted.
  • a memory such as a ROM (Read Only Memory) or a RAM (Random Access Memory) is mounted.
  • the temperature of the battery pack 61 battery temperature
  • the voltage of the battery pack 61 overall voltage
  • the voltage of each battery cell (cell voltage) are set. Be managed.
  • the control ECU 71 protects the battery cell 611 from over-discharging of the battery cell 611 by a protection circuit 711 for each battery cell 611.
  • the protection circuit 711 is configured by, for example, a protection IC (integrated circuit).
  • the wiring coupler 63 is connected to the battery unit 6.
  • a pair of wiring couplers 24 can be attached to and detached from the wiring coupler 63, and an input / output device provided outside the battery unit 6 and the battery unit 6 by attaching the paired wiring coupler 24. And are connected.
  • the input / output devices provided outside the battery unit 6 are, for example, the engine switch 21, the engine start operation switch 22, the cell motor relay 4, and the like described above, and are described above via two or more wire harnesses included in the control harness 25. It is connected to the paired wiring coupler 24.
  • the battery unit includes an engine charge input terminal 712, a power supply detection terminal 713, an engine start operation detection terminal 714, a starter motor relay control terminal 715, an external device output terminal 716, and a constant voltage output terminal 717. 6 is provided.
  • the engine charge input terminal 712, power supply detection terminal 713, engine start operation detection terminal 714, starter motor relay control terminal 715 and external device output terminal 716 are connected to the control ECU 71, and the charge / discharge current from these terminals is managed by the control ECU 71. ..
  • the constant voltage output terminal 717 is directly connected to the battery pack 61, and the battery voltage (overall voltage) of the battery pack 61 is applied to the constant voltage output terminal 717.
  • the wiring coupler 63 to which these terminals are connected is installed on the protrusion 62a (see FIG. 3) in which the waterproof / dustproof structure of the housing 62 is adopted.
  • the input / output devices connected to the battery unit 6 include a regulator 14 connected to the charge coil 13, an engine switch 21, an engine start operation switch 22, a cell motor relay 4, a valve control unit 51, and a choke valve.
  • External devices 5 such as 52 and engine switch 21 (battery voltage is always applied), which are engine charge input line 251 and engine switch operation detection line 252, engine start operation detection line 253, cell motor relay control line 254, and valve. It is connected to the paired wiring coupler 24 via the device output line 255 and the battery voltage constant application line 256.
  • electricity is supplied from the regulator 14 connected to the charge coil 13 to the control ECU 71 through the engine charge input line 251.
  • the control ECU 71 determines the temperature and voltage of the battery pack 61.
  • the battery cell 611 is evenly charged with electricity while managing the voltage of each battery cell 611.
  • the cell motor power supply terminal 64 is provided in the housing 62 of the battery unit 6.
  • the cell motor power supply terminal 64 is a terminal to which the power line (first power line) 641 for supplying electricity from the battery pack 61 to the cell motor 3 (cell motor relay 4) can be attached and detached.
  • the housing 62 of the battery unit 6 It is installed on the left side of the (see Fig. 5) and is waterproof / dustproof with a rubber cover.
  • a fuse 642 is provided in the power line 641 connecting the cell motor power supply terminal 64 and the cell motor relay 4.
  • the fuse 642 protects the starter relay 4 and the starter motor 3 by blowing the fuse when an overcurrent exceeding the rating flows through the power line 641 due to the overdischarge of the battery pack 61. As a result, even if the fuse 642 is blown due to an overcurrent, the starter relay 4 and the starter motor 3 can be easily restored by replacing the power line 641.
  • a battery protection relay 65 is provided between the cell motor power supply terminal 64 and the battery pack 61.
  • the battery protection relay 65 is provided with a contact between the battery pack 61 and the starter motor feeding terminal 64, and the contact provided between the battery pack 61 and the starter motor feeding terminal 64 is closed and operated by a command from the control ECU 71.
  • the external charging input terminal 66 is provided in the housing 62 of the battery unit 6.
  • the external charging input terminal 66 is a terminal to which a power line (second power line) (not shown) for supplying electricity for charging from an external power source to the battery unit 6 can be attached and detached. It is installed on the right side of the housing 62 (see FIG. 4) and is waterproof / dustproof with a rubber cover.
  • the external power source is, for example, a household power source or a car battery.
  • the external power supply is a household power supply
  • the power line of the dedicated charger is attached to the external charging input terminal 66, so that the household power supply supplies electricity for charging to the external charging input terminal 66.
  • the control ECU 71 is activated from the standby state, and the battery cell 611 is evenly charged with electricity while managing the temperature and voltage of the battery pack 61 and the voltage of each battery cell 611.
  • the external power source is a car battery
  • the power line connected to the car cigar socket is attached to the external charging input terminal 66, so that electricity for charging from the car battery to the external charging input terminal 66 can be obtained. Is supplied.
  • the control ECU 71 is activated from the standby state, and the battery cell 611 is evenly charged with electricity while managing the temperature and voltage of the battery pack 61 and the voltage of each battery cell 611.
  • the external charging input terminal 66 is connected to the control ECU 71, and the charging electricity supplied to the external charging input terminal 66 is charged and controlled by the control ECU 71 to form the battery pack 61.
  • One or more battery cells 611 are evenly charged.
  • the charge output terminal 67 is connected to the control ECU 71.
  • the charge output terminal 67 is a terminal on which the charge input terminal provided on the mobile device can be attached and detached, and the control ECU 71 provided inside the battery unit 6 by attaching the charge input terminal provided on the mobile device.
  • the mobile device is, for example, a mobile phone such as a smartphone
  • the charging output terminal 67 is, for example, a USB output terminal 671 and is a female terminal of either Type A, B or C, and an output of up to 2A can be obtained. Is used.
  • the charge output terminal 67 is provided so as to extend from the protrusion 62a provided on the housing 62 of the battery unit 6 to the outside of the battery unit 6, and is provided with waterproof / dustproof measures. It has been subjected.
  • the battery unit 6 is provided with one or more indicators 68 and a charge remaining amount confirmation button 69 on the front surface of the housing of the battery unit 6.
  • One or more indicators 68 and the remaining charge confirmation button 69 are connected to the control ECU 71.
  • One or more indicators 68 constitute, for example, a remaining charge amount indicator lamp and a status indicator lamp of the control ECU 71.
  • the remaining charge amount indicator lamp is composed of, for example, 3 to 5 LED lamps.
  • 3 to 5 LED lamps are composed of 2 to 4 same color LED lamps and 1 different color LED lamp, and the same color LED as the remaining charge amount of the battery pack 61 decreases.
  • the LED lamps of different colors are controlled to be lit at the end, and the charge remaining amount confirmation button 69 is pressed when the control ECU 71 is in the stopped state, the control ECU 71 is released from the standby state. It is activated and controlled so that one or more indicators 68 display the remaining charge of the battery pack 61 at that time.
  • the status indicator lamp of the control ECU 71 is composed of one to three LED lamps of different colors, and is controlled to light any LED lamp based on the status of the control ECU 71. For example, when the engine switch 21 is turned on and the engine 1 can be started, the LED lamp for notifying the start operation is lit, and after the engine 1 is started, the engine 1 is in operation. The LED lamp lights up.
  • FIG. 7 is a perspective view schematically showing the mounting structure of the battery unit 6 according to the embodiment of the present disclosure, and is a diagram showing a state in which the cover 9 is removed.
  • the battery unit 6 is mounted on the side surface of the engine 1, but the scope of the present invention is not limited thereto. , Which is mounted at an arbitrary position of the work machine on which the engine 1 is mounted.
  • the mounting structure of the battery unit 6 mounted on the engine 1 in which the start control device 7 of the engine 1 according to the embodiment of the present disclosure is adopted includes a case 8 and a cover 9 in addition to the battery unit 6 described above. ..
  • the case 8 is attached to the engine 1 or the work machine on which the engine 1 is mounted.
  • the case 8 is attached to the front surface of the engine 1, for example.
  • the case 8 has a box shape with an open front surface, and houses the battery unit 6.
  • the case 8 has, for example, a horizontally long rectangular parallelepiped box shape with an open front surface, a storage area for accommodating the battery unit 6 is provided in a lower area thereof, and wiring couplers 24 and 63 are connected in an upper area thereof. There is a space.
  • the accommodating area has a volume slightly larger than the volume of the battery unit 6, and the battery unit 6 is accommodated so as to be fitted in the accommodating area.
  • connection space has a sufficient volume for connecting the wiring coupler 63 and the wiring coupler 24 paired with the wiring coupler 63, and the engine switch 21 and the engine start operation switch 22 described above are on the right side of the connection space.
  • the switch 23 for the above-mentioned external device, for example, the choke changeover switch 231 is installed on the left side of the connection space.
  • the cover 9 is attached to the case 8 and closes the opening of the case 8 in which the battery unit 6 is housed.
  • the cover 9 has, for example, a box shape with an open rear surface, and is combined with the case 8 containing the battery unit 6 to close the front opening of the case 8.
  • the cover 9 is, for example, one size larger in the longitudinal direction of the case 8 than the case 8, and the power line 641 (see FIG. 2) connecting the battery unit 6 (starter motor feeding terminal 64) and the starter relay 4 to the right side region of the case 8. Wiring space is secured.
  • the cover 9 is cut out from the area corresponding to the engine switch 21 and the engine start operation switch 22 described above, and the engine switch 21 and the engine start operation switch 22 are provided with the cover 9 attached to the case 8. It is exposed to the outside of the cover 9. Further, for example, the cover 9 is provided with a rectangular window 9a in the area corresponding to the switch 23 for the external device, and the switch 23 for the external device is outside the cover 9 with the cover 9 attached to the case 8. Be exposed to.
  • the cover 9 is provided with a rectangular window 9b in the area corresponding to, for example, one or more indicators 68 and the remaining charge confirmation button 69, and one or more covers 9 are attached to the case 8. Two or more indicators 68 and a remaining charge confirmation button 69 are exposed outside the cover 9.
  • the cover 9 is provided with through holes at one end and the other end in the longitudinal direction, respectively, and the bolt 91 through which the through holes are inserted is fitted into the screw holes provided in the case 8, so that the case 8 is provided.
  • the cover 9 is attached to.
  • a bolt or a wing bolt provided with a split groove into which a coin is fitted is adopted as the bolt 91 through which the through hole is inserted.
  • the above-mentioned battery unit 6 has a cushioning material 6b attached to the front surface facing the cover 9. As a result, vibration transmitted from the engine 1 or the work machine to the battery unit 6 can be suppressed, and the battery unit 6 can be protected.
  • the engine starting battery protection device is an engine starting battery protection device that serves as a power source for the starter motor 3 that cranks the engine 1.
  • the engine starting battery according to the embodiment of the present disclosure is a battery pack 61 included in the battery unit 6, and the engine starting battery protection device is composed of a control ECU 71 and a protection circuit 711.
  • the control ECU 71 controls the charging / discharging of one or more battery cells 611 constituting the battery pack 61, and the protection circuit 711 according to the embodiment of the present disclosure is one. Or protect one or more battery cells 611 from overcharging and overdischarging two or more battery cells 611. Then, the control ECU 71 according to the embodiment of the present disclosure cuts off the supply of electricity to the starter motor 3 when the battery voltage when the engine switch 21 is turned on falls below a predetermined first predetermined value.
  • the first predetermined value is, for example, a value at which the remaining charge amount of the battery pack 61 is 30%, and can be changed depending on the temperature of the battery pack 61 (battery temperature).
  • the first predetermined temperature is, for example, 12.9 V, and is changed to 12.7 V, for example, when the temperature is 0 ° C. or lower.
  • control ECU 71 passes through the control ECU 71 when the battery voltage when the engine switch 21 is turned on falls below a predetermined second predetermined value smaller than the first predetermined value. Limit the discharge from the input / output terminals.
  • the second predetermined value is, for example, a value at which the remaining charge amount of the battery pack 61 is 5%, and is, for example, 12V.
  • the control ECU 71 indicates the lower limit state of the remaining charge amount indicator lamp (indicator 68) when the state in which the battery voltage falls below the second predetermined value is continuously detected for a predetermined predetermined time (first predetermined time). Blink the LED lamp. Then, the control ECU 71 turns off the power of the control ECU 71 when a predetermined predetermined time (second predetermined time) elapses from the blinking of the LED lamp.
  • the electricity generated by the engine 1 (charge coil 13) is the control ECU 71.
  • the control ECU 71 is activated and starts charging the battery pack 61.
  • control ECU 71 controls the battery pack 61 when the battery voltage when the engine switch 21 is turned on is lower than a predetermined third predetermined value smaller than the second predetermined value.
  • the ECU 71 is electrically shut off.
  • the third predetermined value is, for example, a value in which the power consumption of the control ECU 71 becomes a problem, and is, for example, 10V.
  • the electricity generated by the engine 1 (charge coil 13) is supplied to the control ECU 71.
  • the electrical disconnection between the battery pack 61 and the control ECU 71 is canceled, and charging of the battery pack 61 is started. Then, if the supply of electricity is interrupted before the battery voltage recovers to the second predetermined value, the battery pack 61 and the control ECU 71 are electrically cut off again.
  • control ECU 71 controls the battery pack 61 when at least one voltage (cell voltage) of one or more battery cells 611 falls below a predetermined fourth predetermined value.
  • the ECU 71 is electrically shut off.
  • the fourth predetermined value is, for example, the voltage at the time of over-discharging of the battery cell 611, which is cut off from the input / output terminals other than the power supply detection terminal 713 and is generated from the electricity generated by the engine 1 (charge coil 13) or from an external power source. The electricity cannot be supplied (the protection circuit 711 is activated).
  • control ECU 71 limits input / output via the control ECU 71 when the temperature rise rate of the battery cell 611 exceeds a predetermined temperature rise rate.
  • the predetermined temperature rise rate is for determining the abnormal heat generation of the battery cell 611, and is set based on, for example, the temperature rise rate when heat is generated due to over-discharge.
  • the predetermined temperature rise rate is a rise rate at which the temperature of the battery cell 611 rises by 3 ° C in 3 seconds, and when the temperature of the battery cell 611 rises by 3 ° C in 3 seconds, the temperature rises via the control ECU 71. Block all inputs and outputs.
  • FIG. 8 is a flowchart schematically showing the control contents of the protection device for the engine starting battery according to the embodiment of the present disclosure.
  • step S21: Yes when the engine switch 21 is turned on (step S21: Yes), the power is turned on and the control ECU 71 is started from the standby state. It switches to the state (step S22).
  • control ECU 71 compares the battery voltage of the battery pack 61 with the first predetermined value (step S23). When the battery voltage of the battery pack 61 is lower than the first predetermined value (step S23: Yes), the control ECU 71 cuts off the supply of electricity to the starter motor 3 (step S24). As a result, electricity is not supplied to the starter motor 3 even if the engine start operation switch 22 is started, and the starter motor 3 does not crank the engine 1.
  • step S23 When the battery voltage of the battery pack 61 is lower than the first predetermined value (step S23: Yes), the control ECU 71 compares the battery voltage of the battery pack 61 with the second predetermined value (step S25). When the battery voltage of the battery pack 61 is lower than the second predetermined value (step S25: Yes), the control ECU 71 limits the discharge from the input / output terminals via the control ECU 71 (step S26). Then, when the state where the battery voltage is lower than the second predetermined value is continuously detected for a predetermined predetermined time (first predetermined time), the control ECU 71 indicates the lower limit state of the remaining charge amount indicator lamp (indicator 68). The lamp is blinked (step S27). Then, when a predetermined predetermined time (second predetermined time) elapses from the blinking of the LED lamp, the control ECU 71 turns off the power of the control ECU 71 (step S28).
  • step S25 When the battery voltage of the battery pack 61 is lower than the second predetermined value (step S25: Yes), the control ECU 71 compares the battery voltage of the battery pack 61 with the third predetermined value (step S29). When the battery voltage of the battery pack 61 is lower than the third predetermined value (step S29: Yes), the control ECU 71 electrically shuts off the battery pack 61 and the control ECU 71 (step S30).
  • step S30 When the battery voltage of the battery pack 61 does not fall below the third predetermined value (step S29: No), the voltage (cell voltage) of the battery cell 611 is compared with the fourth predetermined value (step S31). When at least one voltage (cell voltage) of one or more battery cells 611 falls below a predetermined fourth predetermined value (step S31: Yes), the battery pack 61 and the control ECU 71 are electrically cut off. (Step S30).
  • the control ECU 71 is a cell motor when the battery voltage when the engine switch 21 is turned on is lower than a predetermined first predetermined value.
  • the control ECU 71 can suppress the deterioration of the battery pack 61 (battery cell 611) and can suppress the operation of the protection circuit 711.
  • the control ECU 71 has a second predetermined value in which the battery voltage when the engine switch 21 is turned on is smaller than the first predetermined value.
  • the battery pack 61 battery cell 611
  • the control ECU 71 can be appropriately protected from over-discharging by limiting the discharge from the input / output terminals via the control ECU 71.
  • the battery voltage when the engine switch 21 is turned on is smaller than the second predetermined value.
  • the battery pack 61 can be appropriately protected from over-discharging.
  • the control ECU 71 passes through the control ECU 71 when the temperature rise rate of the battery cell 611 exceeds a predetermined temperature rise rate.
  • the control ECU 71 passes through the control ECU 71 when the temperature rise rate of the battery cell 611 exceeds a predetermined temperature rise rate.
  • the present invention is not limited to the above-mentioned embodiment, and includes a form in which the above-mentioned embodiment is modified and a form in which these forms are appropriately combined.
  • the protection control device for the engine starting battery (battery pack) is It is a protection control device for an engine starting battery (battery pack 61) that is a power source for a starter motor (3) that cranks the engine (1).
  • a control ECU (71) that controls charging / discharging of one or more battery cells (611) constituting the engine starting battery (battery pack 61).
  • a protection circuit (711) that protects the one or more battery cells (611) from overcharging and overdischarging the one or more battery cells (611). Equipped with The control ECU (71) limits the supply of electricity to the starter motor (3) when the battery voltage when the engine switch (21) is turned on is lower than a predetermined first predetermined value.
  • the control ECU (71) sets the battery voltage when the engine switch (21) is on to a predetermined first predetermined value. When the voltage falls below the limit, the engine starting battery (battery pack) can be appropriately protected from over-discharging by limiting the supply of electricity to the cell motor (3).
  • the protection control device for the engine starting battery (battery pack 61) is the protection control device for the engine starting battery (battery pack 61) according to [1].
  • the control ECU (71) is the control ECU (71) when the battery voltage when the engine switch (21) is turned on is lower than the first predetermined value and is lower than the predetermined second predetermined value. Limit the discharge from the input / output terminals via.
  • control ECU (71) controls when the battery voltage when the engine switch (21) is turned on falls below a predetermined second predetermined value smaller than the first predetermined value.
  • the protection control device for the engine starting battery (battery pack 61) is the protection control device for the engine starting battery (battery pack 61) according to [2].
  • the control ECU (71) has one or more of the above when the battery voltage when the engine switch (21) is turned on is lower than the second predetermined value and is lower than the predetermined third predetermined value.
  • the battery cell (611) and the control ECU (71) are electrically cut off.
  • the control ECU (71) determines that the battery voltage when the engine switch (21) is turned on is lower than the second predetermined value and falls below a predetermined third predetermined value.
  • the control ECU (71) determines that the battery voltage when the engine switch (21) is turned on is lower than the second predetermined value and falls below a predetermined third predetermined value.
  • one or more battery cells (611) can be appropriately protected from over-discharging.
  • the protection control device for the engine starting battery (battery pack 61) is the protection of the engine starting battery (battery pack 61) according to any one of [1] to [3]. It ’s a control device,
  • the control ECU (71) limits input / output via the control ECU (71) when the temperature rise rate of the battery cell (611) exceeds a predetermined temperature rise rate.
  • the control ECU (71) limits the input / output via the control ECU (71) when the temperature rise rate of the battery cell (611) exceeds a predetermined temperature rise rate. This makes it possible to suppress accidents such as ignition due to abnormal heat generation of the battery cell (611).

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Abstract

This protection control device for an engine starting battery is a protection control device for an engine starting battery which is a power source of a starter motor that cranks an engine, the protection control device comprising: a control ECU which controls the charging/discharging of one or more battery cells constituting the engine starting battery; and a protection circuit which protects the one or more battery cells from overcharging and overdischarging, wherein the control ECU limits the supply of electricity to the starter motor, if the battery voltage when the engine switch is turned on is lower than a first predetermined value.

Description

エンジン始動用バッテリーの保護制御装置Battery protection control device for starting the engine
　本開示は、エンジン始動用バッテリーの保護制御装置に関する。
　本願は、２０２０年１２月２５日に日本国特許庁に出願された特願２０２０－２１６４１８号に基づき優先権を主張し、その内容をここに援用する。 The present disclosure relates to a protective control device for a battery for starting an engine.
This application claims priority based on Japanese Patent Application No. 2020-216418 filed with the Japan Patent Office on December 25, 2020, the contents of which are incorporated herein by reference.
　特許文献１には、電源監視装置が開示されている。かかる電源監視装置は、車両のエンジンを始動する際の動力源となる蓄電池の残量を検出する残量検出手段と、蓄電池を動力源とする複数の車載機器毎に予め設定された複数の残量判定値を記憶する記憶手段とを備える。かかる電源監視装置は、蓄電池の残量が各残量判定値を下回る毎に、該残量判定値に対応する前記車載機器の動作を制限する。 Patent Document 1 discloses a power supply monitoring device. Such a power supply monitoring device includes a remaining amount detecting means for detecting the remaining amount of the storage battery as a power source when starting the engine of the vehicle, and a plurality of residuals preset for each of a plurality of in-vehicle devices using the storage battery as a power source. It is provided with a storage means for storing the quantity determination value. Each time the remaining amount of the storage battery falls below each remaining amount determination value, such a power supply monitoring device limits the operation of the in-vehicle device corresponding to the remaining amount determination value.
特開２０１０－７６５０９号公報Japanese Unexamined Patent Publication No. 2010-76509
　しかしながら、特許文献１に開示された電源監視装置（エンジン始動用バッテリーの保護制御装置）は、蓄電池（エンジン始動用バッテリー）の過放電を好適に抑制することを目的とするものであって、蓄電池（エンジン始動用バッテリー）を過放電から適切に保護するものではない。 However, the power supply monitoring device (protection control device for the engine starting battery) disclosed in Patent Document 1 is intended to suitably suppress over-discharging of the storage battery (engine starting battery), and is a storage battery. It does not properly protect (engine starting battery) from over-discharging.
　本開示は、上述する問題点に鑑みてなされたもので、エンジン始動用バッテリーを過放電から適切に保護できるエンジン始動用バッテリーの保護制御装置を提供することを目的とする。 The present disclosure has been made in view of the above-mentioned problems, and an object of the present disclosure is to provide a protection control device for an engine starting battery that can appropriately protect the engine starting battery from over-discharging.
　上記目的を達成するため、本開示に係るエンジン始動用バッテリーの保護制御装置は、
　エンジンをクランキングさせるセルモータの電源となるエンジン始動用バッテリーの保護制御装置であって、
　前記エンジン始動用バッテリーを構成する一又は二以上のバッテリーセルの充放電を制御する制御ＥＣＵと、
　前記一又は二以上のバッテリーセルの過充電及び過放電から前記一又は二以上のバッテリーセルを保護する保護回路と、
　を備え、
　前記制御ＥＣＵは、エンジンスイッチのオン時のバッテリー電圧が予め定められた第１の所定値を下回る場合に、前記セルモータへの電気の供給を制限する。 In order to achieve the above object, the protection control device for the engine starting battery according to the present disclosure is
It is a protection control device for the battery for starting the engine, which is the power source for the starter motor that cranks the engine.
A control ECU that controls charging / discharging of one or more battery cells constituting the engine starting battery, and
A protection circuit that protects the one or more battery cells from overcharging and overdischarging the one or more battery cells.
Equipped with
The control ECU limits the supply of electricity to the starter motor when the battery voltage when the engine switch is turned on is lower than a predetermined first predetermined value.
　本開示のエンジン始動用バッテリーの保護制御装置によれば、制御ＥＣＵは、エンジンスイッチのオン時のバッテリー電圧が予め定められた第１の所定値を下回る場合に、セルモータへの電気の供給を制限するので、エンジン始動用バッテリーを過放電から適切に保護できる。 According to the protection control device for the engine starting battery of the present disclosure, the control ECU limits the supply of electricity to the starter motor when the battery voltage when the engine switch is turned on falls below a predetermined first predetermined value. Therefore, the battery for starting the engine can be appropriately protected from over-discharging.
本開示の実施形態に係るエンジン始動用バッテリーの保護装置が採用されたエンジンを示す斜視図である。It is a perspective view which shows the engine which adopted the protection device of the battery for engine start which concerns on embodiment of this disclosure. 図１に示したエンジンの制御構成を概略的に示す回路図である。FIG. 3 is a circuit diagram schematically showing a control configuration of the engine shown in FIG. 1. 図１に示したエンジンに搭載されるバッテリーユニットの正面図である。It is a front view of the battery unit mounted on the engine shown in FIG. 1. 図３に示したバッテリーユニットの左側面図である。It is a left side view of the battery unit shown in FIG. 図３に示したバッテリーユニットの右側面図である。It is a right side view of the battery unit shown in FIG. 図３に示したバッテリーユニットの制御構成を概略的に示す回路図である。FIG. 3 is a circuit diagram schematically showing a control configuration of the battery unit shown in FIG. 本開示の実施形態に係るバッテリーユニットの搭載構造を概略的に示す斜視図であって、カバーを取り外した状態を示す図である。It is a perspective view schematically showing the mounting structure of the battery unit which concerns on embodiment of this disclosure, and is the figure which shows the state which removed the cover. 本開示の実施形態に係るエンジン始動用バッテリーの保護装置の制御内容を概略的に示すフローチャートである。It is a flowchart which shows the control content of the protection device of the engine start battery which concerns on embodiment of this disclosure.
　以下、添付図面を参照して本開示の実施形態に係るエンジン始動用バッテリーの保護装置について説明する。ただし、実施形態として記載されている又は図面に示されている構成部品の寸法、材質、形状、その相対的配置等は、本発明の範囲をこれに限定する趣旨ではなく、単なる説明例にすぎない。 Hereinafter, the engine starting battery protection device according to the embodiment of the present disclosure will be described with reference to the attached drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the components described as embodiments or shown in the drawings are not intended to limit the scope of the present invention to this, but are merely explanatory examples. do not have.
　図１は、本開示の実施形態に係るエンジン始動用バッテリーの保護装置が採用されたエンジン１を示す斜視図であり、図２は、図１に示したエンジン１の制御構成を概略的に示す図である。 FIG. 1 is a perspective view showing an engine 1 in which the engine starting battery protection device according to the embodiment of the present disclosure is adopted, and FIG. 2 schematically shows a control configuration of the engine 1 shown in FIG. It is a figure.
　本開示の実施形態に係るエンジン始動用バッテリーの保護装置は、エンジン１又はエンジン１が搭載された作業機械（図示せず）に搭載される。本開示の実施形態では、エンジン１に搭載されたエンジン始動用バッテリーの保護装置を例に説明するが、本発明の範囲はこれに限定されるものではなく、本発明の範囲にはエンジン１が搭載された作業機械に搭載されたエンジン始動用バッテリーの保護装置も含まれる。 The engine starting battery protection device according to the embodiment of the present disclosure is mounted on the engine 1 or a work machine (not shown) on which the engine 1 is mounted. In the embodiment of the present disclosure, the protective device for the engine starting battery mounted on the engine 1 will be described as an example, but the scope of the present invention is not limited to this, and the engine 1 is included in the scope of the present invention. It also includes a protective device for the engine starting battery mounted on the mounted work machine.
　本開示の実施形態に係るエンジン１は、単気筒又は２気筒で排気量が８０ｃｃから８００ｃｃクラスの空冷のガソリンエンジンであって、例えば、田植機、管理機、耕耘機、ポンプ、発電機等の作業機械に搭載される。 The engine 1 according to the embodiment of the present disclosure is a single-cylinder or two-cylinder air-cooled gasoline engine having a displacement of 80 cc to 800 cc, and is, for example, a rice planting machine, a management machine, a tiller, a pump, a generator, or the like. It is mounted on the work machine.
　図１に示すように、本開示の実施形態に係るエンジン１はリコイルスタータ１２のほかにセルモータ３（図２参照）を備える。リコイルスタータ１２は、エンジン１を始動しようとする者がスターターグリップ１２１を握りプーリに巻き掛けられたロープを引くことでエンジン１のクランクシャフトに回転を与えエンジン１を始動する装置である。セルモータ３は、リコイルスタータ１２に代わりエンジン１のクランクシャフトに回転を与えるモータであり、本開示の実施形態に係るエンジン１ではバッテリーユニット６（図２参照）がセルモータ３を含む補機類の電気供給源である。 As shown in FIG. 1, the engine 1 according to the embodiment of the present disclosure includes a starter 3 (see FIG. 2) in addition to the recoil starter 12. The recoil starter 12 is a device in which a person who intends to start the engine 1 grips the starter grip 121 and pulls a rope wound around a pulley to rotate the crankshaft of the engine 1 and start the engine 1. The starter motor 3 is a motor that gives rotation to the crankshaft of the engine 1 instead of the recoil starter 12, and in the engine 1 according to the embodiment of the present disclosure, the battery unit 6 (see FIG. 2) is an electric motor of accessories including the starter motor 3. It is a source.
　また、本開示の実施形態に係るエンジン１は、エンジンスイッチ２１及びエンジン始動操作スイッチ２２を備える。エンジンスイッチ２１は電源をオン／オフするためのスイッチであり、本開示の実施形態に係るエンジン１ではエンジン１の側面に配置されている。エンジンスイッチ２１は、例えば、ロッカースイッチ（シーソースイッチともいう）で構成され、エンジン１を始動する際にオンされ、エンジン１の運転を停止する際にオフされる。エンジン始動操作スイッチ２２はエンジン１を始動するためのスイッチであり、本開示の実施形態に係るエンジン１ではエンジン１の側面にエンジンスイッチ２１と並んで設置されている。エンジン始動操作スイッチ２２は、例えば、モメンタリプッシュスイッチで構成され、セルモータ３によりエンジン１を始動する際に押下操作される。 Further, the engine 1 according to the embodiment of the present disclosure includes an engine switch 21 and an engine start operation switch 22. The engine switch 21 is a switch for turning on / off the power supply, and is arranged on the side surface of the engine 1 in the engine 1 according to the embodiment of the present disclosure. The engine switch 21 is composed of, for example, a rocker switch (also referred to as a seesaw switch), is turned on when the engine 1 is started, and is turned off when the operation of the engine 1 is stopped. The engine start operation switch 22 is a switch for starting the engine 1, and is installed alongside the engine switch 21 on the side surface of the engine 1 in the engine 1 according to the embodiment of the present disclosure. The engine start operation switch 22 is composed of, for example, a momentary push switch, and is pressed when the engine 1 is started by the starter motor 3.
　また、本開示の実施形態に係るエンジン１は、さらに外部機器用のスイッチ２３を備える。外部機器用のスイッチ２３は、例えば、チョーク切換スイッチ２３１であり、本開示の実施形態に係るエンジン１ではエンジン１の側面に配置されている。チョーク切換スイッチ２３１は、例えば、ロッカースイッチで構成され、オートチョーク／マニュアルチョークの切り換えが可能である。 Further, the engine 1 according to the embodiment of the present disclosure further includes a switch 23 for an external device. The switch 23 for an external device is, for example, a choke changeover switch 231 and is arranged on the side surface of the engine 1 in the engine 1 according to the embodiment of the present disclosure. The choke changeover switch 231 is composed of, for example, a rocker switch, and can switch between auto choke and manual choke.
　図２に示すように、本開示の実施形態に係るエンジン１は、さらにセルモータリレー４のほかチャージコイル１３及び点火コイル１５を備える。セルモータリレー４は、バッテリーユニット６とセルモータ３との間に設けられた接点４１を開閉するリレー（マグネチックリレースイッチ）であり、接点４１が閉じられた場合にバッテリーユニット６からセルモータ３に電気が供給される。チャージコイル１３は、フライホイールの内側に設けられ、フライホイールの回転によって発電する発電用のコイルであり、チャージコイル１３で発電された電気はレギュレータ１４を介してバッテリーユニット６に供給されて充電される。チャージコイル１３は、エンジン１が回転しているときに必ず発電するため、例えばバッテリーユニット６において発電の有無を監視することで、エンジン１の運転状態を把握する機能を持たせてもよい。この機能により、エンジン１の始動を安全に行う等が可能となる。点火コイル１５は、フライホイールの外側に設けられ、フライホイールの回転によって点火コイル１５の内部で発生する電気を高電圧の電気に変換する発電機・変圧器一体装置であり、点火コイル１５で変換された高電圧の電気は点火プラグ１６で放電される。 As shown in FIG. 2, the engine 1 according to the embodiment of the present disclosure further includes a charge coil 13 and an ignition coil 15 in addition to the starter relay 4. The starter motor relay 4 is a relay (magnetic relay switch) that opens and closes a contact 41 provided between the battery unit 6 and the starter motor 3, and when the contact 41 is closed, electricity is supplied from the battery unit 6 to the starter motor 3. Be supplied. The charge coil 13 is provided inside the flywheel and is a coil for power generation generated by the rotation of the flywheel. The electricity generated by the charge coil 13 is supplied to the battery unit 6 via the regulator 14 to be charged. To. Since the charge coil 13 always generates power when the engine 1 is rotating, it may have a function of grasping the operating state of the engine 1 by, for example, monitoring the presence or absence of power generation in the battery unit 6. This function makes it possible to safely start the engine 1. The ignition coil 15 is provided on the outside of the fly wheel and is a generator / transformer integrated device that converts the electricity generated inside the ignition coil 15 into high-voltage electricity due to the rotation of the fly wheel, and is converted by the ignition coil 15. The generated high voltage electricity is discharged by the ignition plug 16.
　本開示の実施形態に係るバッテリーユニット６は、上述したようにセルモータ３を含む補機類の電気供給源であって、エンジン１の始動時にセルモータ３に電気を供給する一方、エンジン１（チャージコイル１３）で発電された電気を充電する。 As described above, the battery unit 6 according to the embodiment of the present disclosure is an electric supply source for auxiliary machinery including the starter motor 3, and supplies electricity to the starter motor 3 when the engine 1 is started, while the engine 1 (charge coil). The electricity generated in 13) is charged.
　図３は、図１に示したエンジン１に搭載されるバッテリーユニット６の正面図である。図４は、図３に示したバッテリーユニット６の左側面図であり、図５は、図３に示したバッテリーユニット６の右側側面図である。また、図６は、図３に示したバッテリーユニット６の制御構成を示す回路図である。 FIG. 3 is a front view of the battery unit 6 mounted on the engine 1 shown in FIG. 4 is a left side view of the battery unit 6 shown in FIG. 3, and FIG. 5 is a right side view of the battery unit 6 shown in FIG. Further, FIG. 6 is a circuit diagram showing a control configuration of the battery unit 6 shown in FIG.
　図３に示すように、本開示の実施形態に係るバッテリーユニット６は、横長の略直方体形状であって、上方に突出する突起部６ａを有する。バッテリーユニット６は、例えば、突起部６ａを除くと、長さ２２０ｍｍ、高さ７５ｍｍ、幅４５ｍｍの略直方体形状であって、その重量は８００ｇ以下に抑えられ、携帯性に優れている。 As shown in FIG. 3, the battery unit 6 according to the embodiment of the present disclosure has a horizontally long substantially rectangular parallelepiped shape and has a protrusion 6a protruding upward. The battery unit 6 has a substantially rectangular parallelepiped shape having a length of 220 mm, a height of 75 mm, and a width of 45 mm, excluding the protrusion 6a, and its weight is suppressed to 800 g or less, and is excellent in portability.
　本開示の実施形態に係るバッテリーユニット６は、バッテリーパック６１及びエンジン１の始動制御装置７（図６参照）を備え、これらは、横長の略直方体形状であって、上方に突出する突起部６２ａを有する筐体６２に収容されている。 The battery unit 6 according to the embodiment of the present disclosure includes a battery pack 61 and a start control device 7 for the engine 1 (see FIG. 6), which have a horizontally long substantially rectangular parallelepiped shape and a protrusion 62a projecting upward. It is housed in the housing 62 having the above.
　バッテリーパック６１は、例えば、リチウムイオンバッテリーで構成される。図６に示すように、本開示の実施形態に係るバッテリーユニット６では、バッテリーパック６１は、一又は二以上のバッテリーセル６１１で構成される。バッテリーセル６１１の単体電圧は３．０から４．２Ｖであり、総容量はバッテリーユニット６として携帯性が確保される６０００から２００００ｍＡＨであり、本開示の実施形態に係るバッテリーユニット６では、例えば、四つのバッテリーセル６１１で構成される。 The battery pack 61 is composed of, for example, a lithium ion battery. As shown in FIG. 6, in the battery unit 6 according to the embodiment of the present disclosure, the battery pack 61 is composed of one or more battery cells 611. The unit voltage of the battery cell 611 is 3.0 to 4.2 V, and the total capacity is 6000 to 20000 mAH, which ensures portability as the battery unit 6, and in the battery unit 6 according to the embodiment of the present disclosure, for example, It is composed of four battery cells 611.
　エンジン１の始動制御装置７は、バッテリーパック６１の充放電を制御する制御ＥＣＵ７１（Ｅｌｅｃｔｒｏｎｉｃ　Ｃｏｎｔｒｏｌ　Ｕｎｉｔ）で構成される。制御ＥＣＵ７１は、例えば、制御装置及び演算装置を含むプロセッサ、ＲＯＭ（Ｒｅａｄ　Ｏｎｌｙ　Ｍｅｍｏｒｙ）やＲＡＭ（Ｒａｎｄｏｍ　Ａｃｓｅｓｓ　Ｍｅｍｏｒｙ）等のメモリが搭載された制御基板で構成される。本開示の実施形態に係るエンジン１の始動制御装置７では、制御ＥＣＵ７１において、バッテリーパック６１の温度（バッテリー温度）、バッテリーパック６１の電圧（全体電圧）及びバッテリーセルごとの電圧（セル電圧）が管理される。また、制御ＥＣＵ７１には、バッテリーセル６１１ごとに保護回路７１１によって、バッテリーセル６１１の過放電からバッテリーセル６１１を保護している。保護回路７１１は、例えば、保護ＩＣ（集積回路）によって構成される。 The start control device 7 of the engine 1 is composed of a control ECU 71 (Electronic Control Unit) that controls charging / discharging of the battery pack 61. The control ECU 71 is composed of, for example, a processor including a control device and an arithmetic unit, and a control board on which a memory such as a ROM (Read Only Memory) or a RAM (Random Access Memory) is mounted. In the start control device 7 of the engine 1 according to the embodiment of the present disclosure, in the control ECU 71, the temperature of the battery pack 61 (battery temperature), the voltage of the battery pack 61 (overall voltage), and the voltage of each battery cell (cell voltage) are set. Be managed. Further, the control ECU 71 protects the battery cell 611 from over-discharging of the battery cell 611 by a protection circuit 711 for each battery cell 611. The protection circuit 711 is configured by, for example, a protection IC (integrated circuit).
　また、本開示の実施形態に係るバッテリーユニット６では、バッテリーユニット６に配線カプラ６３が接続される。配線カプラ６３には、対となる配線カプラ２４（図２参照）が着脱可能であり、対となる配線カプラ２４を装着することでバッテリーユニット６とバッテリーユニット６の外部に設けられた入出力機器とが接続される。バッテリーユニット６の外部に設けられた入出力機器は、例えば、上述したエンジンスイッチ２１やエンジン始動操作スイッチ２２、セルモータリレー４等であり、コントロールハーネス２５に含まれる二以上のワイヤーハーネスを介して上述した対となる配線カプラ２４に接続される。そして、上述した配線カプラ６３に該配線カプラ６３と対となる配線カプラ２４を装着することで、エンジンスイッチ２１やエンジン始動操作スイッチ２２、セルモータリレー４等の複数の入出力機器がバッテリーユニット６に一度に接続される。 Further, in the battery unit 6 according to the embodiment of the present disclosure, the wiring coupler 63 is connected to the battery unit 6. A pair of wiring couplers 24 (see FIG. 2) can be attached to and detached from the wiring coupler 63, and an input / output device provided outside the battery unit 6 and the battery unit 6 by attaching the paired wiring coupler 24. And are connected. The input / output devices provided outside the battery unit 6 are, for example, the engine switch 21, the engine start operation switch 22, the cell motor relay 4, and the like described above, and are described above via two or more wire harnesses included in the control harness 25. It is connected to the paired wiring coupler 24. Then, by attaching the wiring coupler 24 paired with the wiring coupler 63 to the wiring coupler 63 described above, a plurality of input / output devices such as the engine switch 21, the engine start operation switch 22, and the cell motor relay 4 are attached to the battery unit 6. Connected at once.
　本開示の実施形態に係るバッテリーユニット６では、エンジン充電入力端子７１２、電源検知端子７１３、エンジン始動操作検知端子７１４、セルモータリレー制御端子７１５、外部機器出力端子７１６及び常時電圧出力端子７１７がバッテリーユニット６に設けられる。エンジン充電入力端子７１２、電源検知端子７１３、エンジン始動操作検知端子７１４、セルモータリレー制御端子７１５及び外部機器出力端子７１６は制御ＥＣＵ７１に接続され、これら端子からの充放電電流は制御ＥＣＵ７１において管理される。常時電圧出力端子７１７はバッテリーパック６１に直接接続され、常時電圧出力端子７１７にはバッテリーパック６１のバッテリー電圧（全体電圧）が印加される。そして、これら端子がそれぞれ接続された配線カプラ６３が筐体６２の防水／防塵構造が採用された突起部６２ａ（図３参照）に設置される。 In the battery unit 6 according to the embodiment of the present disclosure, the battery unit includes an engine charge input terminal 712, a power supply detection terminal 713, an engine start operation detection terminal 714, a starter motor relay control terminal 715, an external device output terminal 716, and a constant voltage output terminal 717. 6 is provided. The engine charge input terminal 712, power supply detection terminal 713, engine start operation detection terminal 714, starter motor relay control terminal 715 and external device output terminal 716 are connected to the control ECU 71, and the charge / discharge current from these terminals is managed by the control ECU 71. .. The constant voltage output terminal 717 is directly connected to the battery pack 61, and the battery voltage (overall voltage) of the battery pack 61 is applied to the constant voltage output terminal 717. Then, the wiring coupler 63 to which these terminals are connected is installed on the protrusion 62a (see FIG. 3) in which the waterproof / dustproof structure of the housing 62 is adopted.
　図２に示すように、バッテリーユニット６に接続される入出力機器は、チャージコイル１３に接続されたレギュレータ１４、エンジンスイッチ２１、エンジン始動操作スイッチ２２、セルモータリレー４、バルブコントロールユニット５１及びチョークバルブ５２等の外部機器５、及び、エンジンスイッチ２１（バッテリー電圧常時印加）であり、これらはエンジン充電入力線２５１、エンジンスイッチ操作検知線２５２、エンジン始動操作検知線２５３、セルモータリレー制御線２５４、バルブ機器出力線２５５及びバッテリー電圧常時印加線２５６を介してそれぞれ対となる配線カプラ２４に接続される。 As shown in FIG. 2, the input / output devices connected to the battery unit 6 include a regulator 14 connected to the charge coil 13, an engine switch 21, an engine start operation switch 22, a cell motor relay 4, a valve control unit 51, and a choke valve. External devices 5 such as 52 and engine switch 21 (battery voltage is always applied), which are engine charge input line 251 and engine switch operation detection line 252, engine start operation detection line 253, cell motor relay control line 254, and valve. It is connected to the paired wiring coupler 24 via the device output line 255 and the battery voltage constant application line 256.
　そして、本開示の実施形態に係るバッテリーユニット６では、チャージコイル１３に接続されたレギュレータ１４からエンジン充電入力線２５１を通り制御ＥＣＵ７１に電気が供給され、制御ＥＣＵ７１は、バッテリーパック６１の温度及び電圧、並びに、バッテリーセル６１１ごとの電圧を管理しながらバッテリーセル６１１に均等に電気が充電される。 In the battery unit 6 according to the embodiment of the present disclosure, electricity is supplied from the regulator 14 connected to the charge coil 13 to the control ECU 71 through the engine charge input line 251. The control ECU 71 determines the temperature and voltage of the battery pack 61. , And the battery cell 611 is evenly charged with electricity while managing the voltage of each battery cell 611.
　本開示の実施形態に係るバッテリーユニット６では、バッテリーユニット６の筐体６２にセルモータ給電端子６４が設けられている。セルモータ給電端子６４は、バッテリーパック６１からセルモータ３（セルモータリレー４）に電気を供給するための電力線（第１の電力線）６４１の着脱が可能な端子であり、例えば、バッテリーユニット６の筐体６２の左側面に設置され（図５参照）、ゴム製のカバーによって防水／防塵対策が施されている。 In the battery unit 6 according to the embodiment of the present disclosure, the cell motor power supply terminal 64 is provided in the housing 62 of the battery unit 6. The cell motor power supply terminal 64 is a terminal to which the power line (first power line) 641 for supplying electricity from the battery pack 61 to the cell motor 3 (cell motor relay 4) can be attached and detached. For example, the housing 62 of the battery unit 6 It is installed on the left side of the (see Fig. 5) and is waterproof / dustproof with a rubber cover.
　セルモータ給電端子６４とセルモータリレー４とを繋ぐ電力線６４１にはヒューズ６４２が設けられている。ヒューズ６４２は、バッテリーパック６１の過放電により電力線６４１に定格以上の過電流が流れた場合に、溶断することによりセルモータリレー４及びセルモータ３を保護する。これにより、ヒューズ６４２が過電流により溶断しても電力線６４１を交換することにより、セルモータリレー４及びセルモータ３が簡単に復旧できる。 A fuse 642 is provided in the power line 641 connecting the cell motor power supply terminal 64 and the cell motor relay 4. The fuse 642 protects the starter relay 4 and the starter motor 3 by blowing the fuse when an overcurrent exceeding the rating flows through the power line 641 due to the overdischarge of the battery pack 61. As a result, even if the fuse 642 is blown due to an overcurrent, the starter relay 4 and the starter motor 3 can be easily restored by replacing the power line 641.
　図６に示すように、セルモータ給電端子６４とバッテリーパック６１との間にはバッテリー保護リレー６５が設けられている。バッテリー保護リレー６５は、バッテリーパック６１とセルモータ給電端子６４との間に接点が設けられ、制御ＥＣＵ７１からの指令により、バッテリーパック６１とセルモータ給電端子６４との間に設けられた接点が閉作動される。 As shown in FIG. 6, a battery protection relay 65 is provided between the cell motor power supply terminal 64 and the battery pack 61. The battery protection relay 65 is provided with a contact between the battery pack 61 and the starter motor feeding terminal 64, and the contact provided between the battery pack 61 and the starter motor feeding terminal 64 is closed and operated by a command from the control ECU 71. To.
　本開示の実施形態に係るバッテリーユニット６では、バッテリーユニット６の筐体６２に外部充電入力端子６６が設けられる。外部充電入力端子６６は、外部電源からバッテリーユニット６に充電用の電気を供給するための電力線（第２の電力線）（図示せず）の着脱が可能な端子であり、例えば、バッテリーユニット６の筐体６２の右側面に設置され（図４参照）、ゴム製のカバーによって防水／防塵対策が施されている。 In the battery unit 6 according to the embodiment of the present disclosure, the external charging input terminal 66 is provided in the housing 62 of the battery unit 6. The external charging input terminal 66 is a terminal to which a power line (second power line) (not shown) for supplying electricity for charging from an external power source to the battery unit 6 can be attached and detached. It is installed on the right side of the housing 62 (see FIG. 4) and is waterproof / dustproof with a rubber cover.
　外部電源は、例えば、家庭用電源や自動車のバッテリーである。例えば、外部電源が家庭用電源の場合には専用の充電器の電力線が外部充電入力端子６６に装着されることで、家庭用電源から外部充電入力端子６６に充電用の電気が供給される。これにより、制御ＥＣＵ７１が待機状態から起動し、バッテリーパック６１の温度及び電圧、並びにバッテリーセル６１１ごとの電圧を管理しながらバッテリーセル６１１に均等に電気が充電される。また、例えば、外部電源が自動車のバッテリーの場合には自動車のシガーソケットに接続された電力線が外部充電入力端子６６に装着されることで、自動車のバッテリーから外部充電入力端子６６に充電用の電気が供給される。これにより、制御ＥＣＵ７１が待機状態から起動し、バッテリーパック６１の温度及び電圧、並びにバッテリーセル６１１ごとの電圧を管理しながらバッテリーセル６１１に均等に電気が充電される。 The external power source is, for example, a household power source or a car battery. For example, when the external power supply is a household power supply, the power line of the dedicated charger is attached to the external charging input terminal 66, so that the household power supply supplies electricity for charging to the external charging input terminal 66. As a result, the control ECU 71 is activated from the standby state, and the battery cell 611 is evenly charged with electricity while managing the temperature and voltage of the battery pack 61 and the voltage of each battery cell 611. Further, for example, when the external power source is a car battery, the power line connected to the car cigar socket is attached to the external charging input terminal 66, so that electricity for charging from the car battery to the external charging input terminal 66 can be obtained. Is supplied. As a result, the control ECU 71 is activated from the standby state, and the battery cell 611 is evenly charged with electricity while managing the temperature and voltage of the battery pack 61 and the voltage of each battery cell 611.
　本開示の実施形態に係るバッテリーユニット６では、外部充電入力端子６６は制御ＥＣＵ７１に接続され、外部充電入力端子６６に供給された充電用の電気は制御ＥＣＵ７１で充電制御され、バッテリーパック６１を構成する一又は二以上のバッテリーセル６１１が均等に充電される。 In the battery unit 6 according to the embodiment of the present disclosure, the external charging input terminal 66 is connected to the control ECU 71, and the charging electricity supplied to the external charging input terminal 66 is charged and controlled by the control ECU 71 to form the battery pack 61. One or more battery cells 611 are evenly charged.
　本開示の実施形態に係るバッテリーユニット６では、制御ＥＣＵ７１に充電出力端子６７が接続される。充電出力端子６７は、携帯機器に設けられた充電入力端子の着脱が可能な端子であり、携帯機器に設けられた充電入力端子を装着することで、バッテリーユニット６の内部に設けられた制御ＥＣＵ７１と筐体外部に設けられた携帯機器とが接続され、制御ＥＣＵ７１を介してバッテリーパック６１から携帯機器に電気が供給される。携帯機器は、例えば、スマートフォン等の携帯電話であり、充電出力端子６７は、例えば、ＵＳＢ出力端子６７１であり、ＴｙｐｅＡ，Ｂ又はＣのいずれかのメス端子であって、最大２Ａの出力が得られるものが用いられる。 In the battery unit 6 according to the embodiment of the present disclosure, the charge output terminal 67 is connected to the control ECU 71. The charge output terminal 67 is a terminal on which the charge input terminal provided on the mobile device can be attached and detached, and the control ECU 71 provided inside the battery unit 6 by attaching the charge input terminal provided on the mobile device. Is connected to a mobile device provided outside the housing, and electricity is supplied from the battery pack 61 to the mobile device via the control ECU 71. The mobile device is, for example, a mobile phone such as a smartphone, and the charging output terminal 67 is, for example, a USB output terminal 671 and is a female terminal of either Type A, B or C, and an output of up to 2A can be obtained. Is used.
　本開示の実施形態に係るバッテリーユニット６では、充電出力端子６７は、バッテリーユニット６の筐体６２に設けられた突起部６２ａからバッテリーユニット６の外部に延びるように設けられ、防水／防塵対策が施されている。 In the battery unit 6 according to the embodiment of the present disclosure, the charge output terminal 67 is provided so as to extend from the protrusion 62a provided on the housing 62 of the battery unit 6 to the outside of the battery unit 6, and is provided with waterproof / dustproof measures. It has been subjected.
　図３に示すように、本開示の実施形態に係るバッテリーユニット６では、バッテリーユニット６の筐体前面に、一又は二以上のインジケータ６８と、充電残量確認ボタン６９とを備えている。一又は二以上のインジケータ６８と充電残量確認ボタン６９は制御ＥＣＵ７１に接続されている。一又は二以上のインジケータ６８は、例えば、残充電量表示灯及び制御ＥＣＵ７１の状態表示灯を構成する。 As shown in FIG. 3, the battery unit 6 according to the embodiment of the present disclosure is provided with one or more indicators 68 and a charge remaining amount confirmation button 69 on the front surface of the housing of the battery unit 6. One or more indicators 68 and the remaining charge confirmation button 69 are connected to the control ECU 71. One or more indicators 68 constitute, for example, a remaining charge amount indicator lamp and a status indicator lamp of the control ECU 71.
　残充電量表示灯は、例えば、３個から５個のＬＥＤランプで構成される。例えば、３個から５個のＬＥＤランプは、２個から４個の同色系のＬＥＤランプと１個の異なる色のＬＥＤランプで構成され、バッテリーパック６１の残充電量が減るに従い同色系のＬＥＤランプの点灯数が減り、最後に異なる色のＬＥＤランプが点灯するように制御され、制御ＥＣＵ７１が停止状態にある場合において充電残量確認ボタン６９が押下された場合に、制御ＥＣＵ７１が待機状態から起動され、一又は二以上のインジケータ６８にその時のバッテリーパック６１の充電残量を表示するように制御される。 The remaining charge amount indicator lamp is composed of, for example, 3 to 5 LED lamps. For example, 3 to 5 LED lamps are composed of 2 to 4 same color LED lamps and 1 different color LED lamp, and the same color LED as the remaining charge amount of the battery pack 61 decreases. When the number of lamps lit is reduced, the LED lamps of different colors are controlled to be lit at the end, and the charge remaining amount confirmation button 69 is pressed when the control ECU 71 is in the stopped state, the control ECU 71 is released from the standby state. It is activated and controlled so that one or more indicators 68 display the remaining charge of the battery pack 61 at that time.
　また、制御ＥＣＵ７１の状態表示灯は、１個から３個の異なる色のＬＥＤランプで構成され、制御ＥＣＵ７１の状態に基づいて任意のＬＥＤランプを点灯するように制御される。例えば、エンジンスイッチ２１がオンされ、エンジン１の始動操作が可能な状態の場合には始動操作可能を通知するＬＥＤランプが点灯し、エンジン１の始動後はエンジン１が運転中であることを通知するＬＥＤランプが点灯する。 Further, the status indicator lamp of the control ECU 71 is composed of one to three LED lamps of different colors, and is controlled to light any LED lamp based on the status of the control ECU 71. For example, when the engine switch 21 is turned on and the engine 1 can be started, the LED lamp for notifying the start operation is lit, and after the engine 1 is started, the engine 1 is in operation. The LED lamp lights up.
　図７は、本開示の実施形態に係るバッテリーユニット６の搭載構造を概略的に示す斜視図であって、カバー９を取り外した状態を示す図である。 FIG. 7 is a perspective view schematically showing the mounting structure of the battery unit 6 according to the embodiment of the present disclosure, and is a diagram showing a state in which the cover 9 is removed.
　図７に示すように、本開示の実施形態に係るバッテリーユニット６の搭載構造では、バッテリーユニット６は、エンジン１の側面に搭載されるが、本発明の範囲はこれに限定されるものではなく、エンジン１が搭載された作業機械の任意の位置に搭載されるもの含まれる。 As shown in FIG. 7, in the mounting structure of the battery unit 6 according to the embodiment of the present disclosure, the battery unit 6 is mounted on the side surface of the engine 1, but the scope of the present invention is not limited thereto. , Which is mounted at an arbitrary position of the work machine on which the engine 1 is mounted.
　本開示の実施形態に係るエンジン１の始動制御装置７が採用されるエンジン１に搭載されるバッテリーユニット６の搭載構造は、上述したバッテリーユニット６のほかに、ケース８及びカバー９を備えている。 The mounting structure of the battery unit 6 mounted on the engine 1 in which the start control device 7 of the engine 1 according to the embodiment of the present disclosure is adopted includes a case 8 and a cover 9 in addition to the battery unit 6 described above. ..
　ケース８は、エンジン１又はエンジン１が搭載された作業機械に取り付けられる。ケース８は、例えば、エンジン１の前面に取り付けられる。ケース８は、前面が開口した箱状であって、バッテリーユニット６が収容される。ケース８は、例えば、前面が開口した横長の略直方体形状の箱状であって、その下方域にバッテリーユニット６が収容される収容領域が設けられ、その上方域に配線カプラ２４，６３の接続空間が設けられている。収容領域はバッテリーユニット６の体積よりも僅かに大きな容積を有し、バッテリーユニット６は収容領域に嵌め込まれるように収容される。接続空間は、配線カプラ６３と該配線カプラ６３と対になる配線カプラ２４とを接続するのに十分な容積を有し、接続空間の右側には上述したエンジンスイッチ２１及びエンジン始動操作スイッチ２２が設置され、接続空間の左側には上述した外部機器用のスイッチ２３、例えば、チョーク切換スイッチ２３１が設置されている。 The case 8 is attached to the engine 1 or the work machine on which the engine 1 is mounted. The case 8 is attached to the front surface of the engine 1, for example. The case 8 has a box shape with an open front surface, and houses the battery unit 6. The case 8 has, for example, a horizontally long rectangular parallelepiped box shape with an open front surface, a storage area for accommodating the battery unit 6 is provided in a lower area thereof, and wiring couplers 24 and 63 are connected in an upper area thereof. There is a space. The accommodating area has a volume slightly larger than the volume of the battery unit 6, and the battery unit 6 is accommodated so as to be fitted in the accommodating area. The connection space has a sufficient volume for connecting the wiring coupler 63 and the wiring coupler 24 paired with the wiring coupler 63, and the engine switch 21 and the engine start operation switch 22 described above are on the right side of the connection space. The switch 23 for the above-mentioned external device, for example, the choke changeover switch 231 is installed on the left side of the connection space.
　カバー９は、ケース８に取り付けられてバッテリーユニット６が収容されたケース８の開口を塞ぐ。カバー９は、例えば、後面が開口した箱状であって、バッテリーユニット６が収容されたケース８と組み合わされてケース８の前面開口を塞ぐ。カバー９は、例えば、ケース８よりもケース８の長手方向にひとまわり大きく、ケース８の右側領域にバッテリーユニット６（セルモータ給電端子６４）とセルモータリレー４を接続する電力線６４１（図２参照）の配線空間が確保されている。 The cover 9 is attached to the case 8 and closes the opening of the case 8 in which the battery unit 6 is housed. The cover 9 has, for example, a box shape with an open rear surface, and is combined with the case 8 containing the battery unit 6 to close the front opening of the case 8. The cover 9 is, for example, one size larger in the longitudinal direction of the case 8 than the case 8, and the power line 641 (see FIG. 2) connecting the battery unit 6 (starter motor feeding terminal 64) and the starter relay 4 to the right side region of the case 8. Wiring space is secured.
　また、カバー９は、例えば、上述したエンジンスイッチ２１及びエンジン始動操作スイッチ２２に対応する領域が切り欠かれており、カバー９をケース８に取り付けた状態でエンジンスイッチ２１及びエンジン始動操作スイッチ２２がカバー９の外に露出する。また、カバー９は、例えば、外部機器用のスイッチ２３に対応する領域に矩形の窓９ａが設けられており、カバー９をケース８に取り付けた状態で外部機器用のスイッチ２３がカバー９の外に露出する。 Further, for example, the cover 9 is cut out from the area corresponding to the engine switch 21 and the engine start operation switch 22 described above, and the engine switch 21 and the engine start operation switch 22 are provided with the cover 9 attached to the case 8. It is exposed to the outside of the cover 9. Further, for example, the cover 9 is provided with a rectangular window 9a in the area corresponding to the switch 23 for the external device, and the switch 23 for the external device is outside the cover 9 with the cover 9 attached to the case 8. Be exposed to.
　また、カバー９は、例えば、一又は二以上のインジケータ６８と充電残量確認ボタン６９とに対応する領域に矩形の窓９ｂが設けられており、カバー９をケース８に取り付けた状態で一又は二以上のインジケータ６８と充電残量確認ボタン６９がカバー９の外に露出する。 Further, the cover 9 is provided with a rectangular window 9b in the area corresponding to, for example, one or more indicators 68 and the remaining charge confirmation button 69, and one or more covers 9 are attached to the case 8. Two or more indicators 68 and a remaining charge confirmation button 69 are exposed outside the cover 9.
　また、カバー９は、長手方向一端部と他端部とにそれぞれ貫通穴が設けられており、該貫通穴を挿通したボルト９１がケース８に設けられたネジ穴に嵌め込まれることで、ケース８にカバー９が取り付けられる。貫通穴を挿通したボルト９１は、例えば、コインが嵌まるスリ割り溝が設けられたボルト又は蝶ボルトが採用されている。 Further, the cover 9 is provided with through holes at one end and the other end in the longitudinal direction, respectively, and the bolt 91 through which the through holes are inserted is fitted into the screw holes provided in the case 8, so that the case 8 is provided. The cover 9 is attached to. As the bolt 91 through which the through hole is inserted, for example, a bolt or a wing bolt provided with a split groove into which a coin is fitted is adopted.
　尚、本開示の実施形態に係るバッテリーユニット６の搭載構造では、上述したバッテリーユニット６は、カバー９に対向する前面に緩衝材６ｂが貼り付けられている。これにより、エンジン１や作業機械からバッテリーユニット６に伝達される振動を抑制し、バッテリーユニット６を保護できる。 In the mounting structure of the battery unit 6 according to the embodiment of the present disclosure, the above-mentioned battery unit 6 has a cushioning material 6b attached to the front surface facing the cover 9. As a result, vibration transmitted from the engine 1 or the work machine to the battery unit 6 can be suppressed, and the battery unit 6 can be protected.
　本開示の実施形態に係るエンジン始動用バッテリーの保護装置は、エンジン１をクランキングさせるセルモータ３の電源となるエンジン始動用バッテリーの保護装置である。本開示の実施形態にかかるエンジン始動用バッテリーは、バッテリーユニット６が備えるバッテリーパック６１であり、エンジン始動用バッテリーの保護装置は、制御ＥＣＵ７１と保護回路７１１により構成される。 The engine starting battery protection device according to the embodiment of the present disclosure is an engine starting battery protection device that serves as a power source for the starter motor 3 that cranks the engine 1. The engine starting battery according to the embodiment of the present disclosure is a battery pack 61 included in the battery unit 6, and the engine starting battery protection device is composed of a control ECU 71 and a protection circuit 711.
　本開示の実施形態に係る制御ＥＣＵ７１は、上述したように、バッテリーパック６１を構成する一又は二以上のバッテリーセル６１１の充放電を制御し、本開示の実施形態に係る保護回路７１１は、一又は二以上のバッテリーセル６１１の過充電及び過放電から一又は二以上のバッテリーセル６１１を保護する。そして、本開示の実施形態に係る制御ＥＣＵ７１は、エンジンスイッチ２１のオン時のバッテリー電圧が予め定められた第１の所定値を下回る場合に、セルモータ３への電気の供給を遮断する。第１の所定値は、例えば、バッテリーパック６１の残充電量が３０％となる値であり、バッテリーパック６１の温度（バッテリー温度）によって変更可能である。第１の所定温度は、例えば、１２．９Ｖであり、例えば、０°Ｃ以下の場合に１２．７Ｖに変更される。 As described above, the control ECU 71 according to the embodiment of the present disclosure controls the charging / discharging of one or more battery cells 611 constituting the battery pack 61, and the protection circuit 711 according to the embodiment of the present disclosure is one. Or protect one or more battery cells 611 from overcharging and overdischarging two or more battery cells 611. Then, the control ECU 71 according to the embodiment of the present disclosure cuts off the supply of electricity to the starter motor 3 when the battery voltage when the engine switch 21 is turned on falls below a predetermined first predetermined value. The first predetermined value is, for example, a value at which the remaining charge amount of the battery pack 61 is 30%, and can be changed depending on the temperature of the battery pack 61 (battery temperature). The first predetermined temperature is, for example, 12.9 V, and is changed to 12.7 V, for example, when the temperature is 0 ° C. or lower.
　また、本開示の実施形態に係る制御ＥＣＵ７１は、エンジンスイッチ２１のオン時のバッテリー電圧が第１の所定値よりも小さい予め定められた第２の所定値を下回る場合に、制御ＥＣＵ７１を経由する入出力端子からの放電を制限する。第２の所定値は、例えば、バッテリーパック６１の残充電量が５％となる値であり、例えば、１２Ｖである。また、制御ＥＣＵ７１は、バッテリー電圧が第２の所定値を下回る状態を予め定めた所定時間（第１の所定時間）継続検知した場合に、残充電量表示灯（インジケータ６８）の下限状態を示すＬＥＤランプを点滅させる。そして、制御ＥＣＵ７１は、ＬＥＤランプの点滅から予め定めた所定時間（第２の所定時間）が経過すると、制御ＥＣＵ７１の電源をオフにする。 Further, the control ECU 71 according to the embodiment of the present disclosure passes through the control ECU 71 when the battery voltage when the engine switch 21 is turned on falls below a predetermined second predetermined value smaller than the first predetermined value. Limit the discharge from the input / output terminals. The second predetermined value is, for example, a value at which the remaining charge amount of the battery pack 61 is 5%, and is, for example, 12V. Further, the control ECU 71 indicates the lower limit state of the remaining charge amount indicator lamp (indicator 68) when the state in which the battery voltage falls below the second predetermined value is continuously detected for a predetermined predetermined time (first predetermined time). Blink the LED lamp. Then, the control ECU 71 turns off the power of the control ECU 71 when a predetermined predetermined time (second predetermined time) elapses from the blinking of the LED lamp.
　尚、バッテリー電圧が第２の所定値を下回り、制御ＥＣＵ７１を経由する入出力端子からの放電を制限している場合であっても、エンジン１（チャージコイル１３）で発電された電気が制御ＥＣＵ７１に供給され、又は、外部電源から制御ＥＣＵ７１に電気が供給されると、制御ＥＣＵ７１が起動し、バッテリーパック６１への充電を開始する。 Even when the battery voltage falls below the second predetermined value and the discharge from the input / output terminals via the control ECU 71 is restricted, the electricity generated by the engine 1 (charge coil 13) is the control ECU 71. When electricity is supplied to the control ECU 71 from an external power source, the control ECU 71 is activated and starts charging the battery pack 61.
　また、本開示の実施形態に係る制御ＥＣＵ７１は、エンジンスイッチ２１のオン時のバッテリー電圧が第２の所定値よりも小さい予め定められた第３の所定値を下回る場合に、バッテリーパック６１と制御ＥＣＵ７１を電気的に遮断する。第３の所定値は、例えば、制御ＥＣＵ７１の消費電力が問題となる値であり、例えば、１０Ｖである。 Further, the control ECU 71 according to the embodiment of the present disclosure controls the battery pack 61 when the battery voltage when the engine switch 21 is turned on is lower than a predetermined third predetermined value smaller than the second predetermined value. The ECU 71 is electrically shut off. The third predetermined value is, for example, a value in which the power consumption of the control ECU 71 becomes a problem, and is, for example, 10V.
　尚、バッテリー電圧が第２の所定値を下回り、バッテリーパック６１と制御ＥＣＵ７１を電気的に遮断している場合であっても、エンジン１（チャージコイル１３）で発電された電気が制御ＥＣＵ７１に供給され、又は、外部電源から制御ＥＣＵ７１に電気が供給されると、バッテリーパック６１と制御ＥＣＵ７１の電気的な遮断を解消し、バッテリーパック６１への充電を開始する。そして、バッテリー電圧が第２の所定値まで回復する前に電気の供給が中断されると、再度、バッテリーパック６１と制御ＥＣＵ７１を電気的に遮断する。 Even when the battery voltage falls below the second predetermined value and the battery pack 61 and the control ECU 71 are electrically cut off, the electricity generated by the engine 1 (charge coil 13) is supplied to the control ECU 71. Or, when electricity is supplied to the control ECU 71 from an external power source, the electrical disconnection between the battery pack 61 and the control ECU 71 is canceled, and charging of the battery pack 61 is started. Then, if the supply of electricity is interrupted before the battery voltage recovers to the second predetermined value, the battery pack 61 and the control ECU 71 are electrically cut off again.
　また、本開示の実施形態に係る制御ＥＣＵ７１は、一又は二以上のバッテリーセル６１１の少なくとも一つの電圧（セル電圧）が予め定められた第４の所定値を下回る場合に、バッテリーパック６１と制御ＥＣＵ７１を電気的に遮断する。第４の所定値は、例えば、バッテリーセル６１１の過放電時における電圧であり、電源検知端子７１３を除く入出力端子と遮断され、エンジン１（チャージコイル１３）で発電された電気、外部電源からの電気の供給ができなくなる（保護回路７１１の作動）。 Further, the control ECU 71 according to the embodiment of the present disclosure controls the battery pack 61 when at least one voltage (cell voltage) of one or more battery cells 611 falls below a predetermined fourth predetermined value. The ECU 71 is electrically shut off. The fourth predetermined value is, for example, the voltage at the time of over-discharging of the battery cell 611, which is cut off from the input / output terminals other than the power supply detection terminal 713 and is generated from the electricity generated by the engine 1 (charge coil 13) or from an external power source. The electricity cannot be supplied (the protection circuit 711 is activated).
　また、本開示の実施形態に係る制御ＥＣＵ７１は、バッテリーセル６１１の温度上昇率が予め定められた温度上昇率を超える場合に、制御ＥＣＵ７１を経由する入出力を制限する。予め定められた温度上昇率は、バッテリーセル６１１の異常発熱を判定するためのものであり、例えば、過放電により発熱した時の温度上昇率を基に設定される。例えば、予め定められた温度上昇率は、３秒間でバッテリーセル６１１の温度３°Ｃ上昇する上昇率であり、３秒間でバッテリーセル６１１の温度が３°Ｃ上昇した場合に、制御ＥＣＵ７１を経由する入出力を全て遮断する。 Further, the control ECU 71 according to the embodiment of the present disclosure limits input / output via the control ECU 71 when the temperature rise rate of the battery cell 611 exceeds a predetermined temperature rise rate. The predetermined temperature rise rate is for determining the abnormal heat generation of the battery cell 611, and is set based on, for example, the temperature rise rate when heat is generated due to over-discharge. For example, the predetermined temperature rise rate is a rise rate at which the temperature of the battery cell 611 rises by 3 ° C in 3 seconds, and when the temperature of the battery cell 611 rises by 3 ° C in 3 seconds, the temperature rises via the control ECU 71. Block all inputs and outputs.
　図８は、本開示の実施形態に係るエンジン始動用バッテリーの保護装置の制御内容を概略的に示すフローチャートである。 FIG. 8 is a flowchart schematically showing the control contents of the protection device for the engine starting battery according to the embodiment of the present disclosure.
　図８に示すように、本開示の実施形態に係るエンジン始動用バッテリーの保護装置では、エンジンスイッチ２１がオンされると（ステップＳ２１：Ｙｅｓ）、電源がオンされ、制御ＥＣＵ７１が待機状態から起動状態に切り替わる（ステップＳ２２）。 As shown in FIG. 8, in the engine starting battery protection device according to the embodiment of the present disclosure, when the engine switch 21 is turned on (step S21: Yes), the power is turned on and the control ECU 71 is started from the standby state. It switches to the state (step S22).
　次に、制御ＥＣＵ７１は、バッテリーパック６１のバッテリー電圧と第１の所定値とを比較する（ステップＳ２３）。バッテリーパック６１のバッテリー電圧が第１の所定値を下回る場合（ステップＳ２３：Ｙｅｓ）に、制御ＥＣＵ７１はセルモータ３への電気の供給を遮断する（ステップＳ２４）。これにより、エンジン始動操作スイッチ２２を始動操作してもセルモータ３に電気が供給されることはなく、セルモータ３がエンジン１のクランキングをすることもない。 Next, the control ECU 71 compares the battery voltage of the battery pack 61 with the first predetermined value (step S23). When the battery voltage of the battery pack 61 is lower than the first predetermined value (step S23: Yes), the control ECU 71 cuts off the supply of electricity to the starter motor 3 (step S24). As a result, electricity is not supplied to the starter motor 3 even if the engine start operation switch 22 is started, and the starter motor 3 does not crank the engine 1.
　バッテリーパック６１のバッテリー電圧が第１の所定値を下回る場合（ステップＳ２３：Ｙｅｓ）には、制御ＥＣＵ７１がバッテリーパック６１のバッテリー電圧と第２の所定値とを比較する（ステップＳ２５）。バッテリーパック６１のバッテリー電圧が第２の所定値を下回る場合（ステップＳ２５：Ｙｅｓ）に、制御ＥＣＵ７１は制御ＥＣＵ７１を経由する入出力端子からの放電を制限する（ステップＳ２６）。そして、バッテリー電圧が第２の所定値を下回る状態を予め定めた所定時間（第１の所定時間）継続検知した場合に、制御ＥＣＵ７１が残充電量表示灯（インジケータ６８）の下限状態を示すＬＥＤランプを点滅させる（ステップＳ２７）。そして、ＬＥＤランプの点滅から予め定めた所定時間（第２の所定時間）が経過すると、制御ＥＣＵ７１は制御ＥＣＵ７１の電源をオフにする（ステップＳ２８）。 When the battery voltage of the battery pack 61 is lower than the first predetermined value (step S23: Yes), the control ECU 71 compares the battery voltage of the battery pack 61 with the second predetermined value (step S25). When the battery voltage of the battery pack 61 is lower than the second predetermined value (step S25: Yes), the control ECU 71 limits the discharge from the input / output terminals via the control ECU 71 (step S26). Then, when the state where the battery voltage is lower than the second predetermined value is continuously detected for a predetermined predetermined time (first predetermined time), the control ECU 71 indicates the lower limit state of the remaining charge amount indicator lamp (indicator 68). The lamp is blinked (step S27). Then, when a predetermined predetermined time (second predetermined time) elapses from the blinking of the LED lamp, the control ECU 71 turns off the power of the control ECU 71 (step S28).
　バッテリーパック６１のバッテリー電圧が第２の所定値を下回る場合（ステップＳ２５：Ｙｅｓ）には、制御ＥＣＵ７１がバッテリーパック６１のバッテリー電圧と第３の所定値とを比較する（ステップＳ２９）。バッテリーパック６１のバッテリー電圧が第３の所定値を下回る場合（ステップＳ２９：Ｙｅｓ）に、制御ＥＣＵ７１はバッテリーパック６１と制御ＥＣＵ７１を電気的に遮断する（ステップＳ３０）。 When the battery voltage of the battery pack 61 is lower than the second predetermined value (step S25: Yes), the control ECU 71 compares the battery voltage of the battery pack 61 with the third predetermined value (step S29). When the battery voltage of the battery pack 61 is lower than the third predetermined value (step S29: Yes), the control ECU 71 electrically shuts off the battery pack 61 and the control ECU 71 (step S30).
　バッテリーパック６１のバッテリー電圧が第３の所定値を下回らない場合（ステップＳ２９：Ｎｏ）には、バッテリーセル６１１の電圧（セル電圧）と第４の所定値とを比較する（ステップＳ３１）。一又は二以上のバッテリーセル６１１の少なくとも一つの電圧（セル電圧）が予め定められた第４の所定値を下回る場合（ステップＳ３１：Ｙｅｓ）に、バッテリーパック６１と制御ＥＣＵ７１を電気的に遮断する（ステップＳ３０）。 When the battery voltage of the battery pack 61 does not fall below the third predetermined value (step S29: No), the voltage (cell voltage) of the battery cell 611 is compared with the fourth predetermined value (step S31). When at least one voltage (cell voltage) of one or more battery cells 611 falls below a predetermined fourth predetermined value (step S31: Yes), the battery pack 61 and the control ECU 71 are electrically cut off. (Step S30).
　上述した本開示の実施形態に係るエンジン始動用バッテリーの保護制御装置によれば、制御ＥＣＵ７１は、エンジンスイッチ２１のオン時のバッテリー電圧が予め定められた第１の所定値を下回る場合に、セルモータ３への電気の供給を制限することで、エンジン始動用バッテリーを過放電から適切に保護できる。これにより、制御ＥＣＵ７１は、バッテリーパック６１（バッテリーセル６１１）の劣化を抑制でき、また、保護回路７１１の作動を抑制できる。 According to the protection control device for the engine starting battery according to the embodiment of the present disclosure described above, the control ECU 71 is a cell motor when the battery voltage when the engine switch 21 is turned on is lower than a predetermined first predetermined value. By limiting the supply of electricity to 3, the battery for starting the engine can be appropriately protected from over-discharging. As a result, the control ECU 71 can suppress the deterioration of the battery pack 61 (battery cell 611) and can suppress the operation of the protection circuit 711.
　また、本開示の実施形態に係るエンジン始動用バッテリーの保護制御装置によれば、制御ＥＣＵ７１は、エンジンスイッチ２１のオン時のバッテリー電圧が第１の所定値よりも小さい予め定められた第２の所定値を下回る場合に、制御ＥＣＵ７１を経由する入出力端子からの放電を制限することで、バッテリーパック６１（バッテリーセル６１１）を過放電から適切に保護できる。 Further, according to the protection control device for the engine starting battery according to the embodiment of the present disclosure, the control ECU 71 has a second predetermined value in which the battery voltage when the engine switch 21 is turned on is smaller than the first predetermined value. When the value falls below a predetermined value, the battery pack 61 (battery cell 611) can be appropriately protected from over-discharging by limiting the discharge from the input / output terminals via the control ECU 71.
　また、本開示の実施形態に係るエンジン始動用バッテリーの保護制御装置によれば、制御ＥＣＵ７１は、エンジンスイッチ２１のオン時のバッテリー電圧が第２の所定値よりも小さい予め定められた第３の所定値を下回る場合に、バッテリーパック６１と制御ＥＣＵ７１を電気的に遮断することで、バッテリーパック６１を過放電から適切に保護できる。 Further, according to the protection control device for the engine starting battery according to the embodiment of the present disclosure, in the control ECU 71, the battery voltage when the engine switch 21 is turned on is smaller than the second predetermined value. By electrically shutting off the battery pack 61 and the control ECU 71 when the value falls below a predetermined value, the battery pack 61 can be appropriately protected from over-discharging.
　また、本開示の実施形態に係るエンジン始動用バッテリーの保護制御装置によれば、制御ＥＣＵ７１は、バッテリーセル６１１の温度上昇率が予め定められた温度上昇率を超える場合に、制御ＥＣＵ７１を経由する入出力を制限することで、バッテリーセル６１１の異常発熱による発火等の事故を抑制できる。 Further, according to the protection control device for the engine starting battery according to the embodiment of the present disclosure, the control ECU 71 passes through the control ECU 71 when the temperature rise rate of the battery cell 611 exceeds a predetermined temperature rise rate. By limiting the input / output, it is possible to suppress an accident such as ignition due to abnormal heat generation of the battery cell 611.
　本発明は上述した実施形態に限定されることはなく、上述した実施形態に変形を加えた形態や、これらの形態を適宜組み合わせた形態も含む。 The present invention is not limited to the above-mentioned embodiment, and includes a form in which the above-mentioned embodiment is modified and a form in which these forms are appropriately combined.
　上記各実施形態に記載の内容は、例えば、以下のように把握される。 The contents described in each of the above embodiments are grasped as follows, for example.
［１］の態様に係るエンジン始動用バッテリー（バッテリーパック）の保護制御装置は、
　エンジン（１）をクランキングさせるセルモータ（３）の電源となるエンジン始動用バッテリー（バッテリーパック６１）の保護制御装置であって、
　前記エンジン始動用バッテリー（バッテリーパック６１）を構成する一又は二以上のバッテリーセル（６１１）の充放電を制御する制御ＥＣＵ（７１）と、
　前記一又は二以上のバッテリーセル（６１１）の過充電及び過放電から前記一又は二以上のバッテリーセル（６１１）を保護する保護回路（７１１）と、
　を備え、
　前記制御ＥＣＵ（７１）は、エンジンスイッチ（２１）のオン時のバッテリー電圧が予め定められた第１の所定値を下回る場合に、前記セルモータ（３）への電気の供給を制限する。 The protection control device for the engine starting battery (battery pack) according to the aspect of [1] is
It is a protection control device for an engine starting battery (battery pack 61) that is a power source for a starter motor (3) that cranks the engine (1).
A control ECU (71) that controls charging / discharging of one or more battery cells (611) constituting the engine starting battery (battery pack 61).
A protection circuit (711) that protects the one or more battery cells (611) from overcharging and overdischarging the one or more battery cells (611).
Equipped with
The control ECU (71) limits the supply of electricity to the starter motor (3) when the battery voltage when the engine switch (21) is turned on is lower than a predetermined first predetermined value.
　本開示に係るエンジン始動用バッテリー（バッテリーパック６１）の保護制御装置によれば、制御ＥＣＵ（７１）は、エンジンスイッチ（２１）のオン時のバッテリー電圧が予め定められた第１の所定値を下回る場合に、セルモータ（３）への電気の供給を制限することで、エンジン始動用バッテリー（バッテリーパック）を過放電から適切に保護できる。 According to the protection control device for the engine starting battery (battery pack 61) according to the present disclosure, the control ECU (71) sets the battery voltage when the engine switch (21) is on to a predetermined first predetermined value. When the voltage falls below the limit, the engine starting battery (battery pack) can be appropriately protected from over-discharging by limiting the supply of electricity to the cell motor (3).
［２］別の態様に係るエンジン始動用バッテリー（バッテリーパック６１）の保護制御装置は、［１］に記載のエンジン始動用バッテリー（バッテリーパック６１）の保護制御装置であって、
　前記制御ＥＣＵ（７１）は、前記エンジンスイッチ（２１）のオン時のバッテリー電圧が前記第１の所定値よりも小さい予め定められた第２の所定値を下回る場合に、前記制御ＥＣＵ（７１）を経由する入出力端子からの放電を制限する。 [2] The protection control device for the engine starting battery (battery pack 61) according to another aspect is the protection control device for the engine starting battery (battery pack 61) according to [1].
The control ECU (71) is the control ECU (71) when the battery voltage when the engine switch (21) is turned on is lower than the first predetermined value and is lower than the predetermined second predetermined value. Limit the discharge from the input / output terminals via.
　このような構成によれば、制御ＥＣＵ（７１）は、エンジンスイッチ（２１）のオン時のバッテリー電圧が第１の所定値よりも小さい予め定められた第２の所定値を下回る場合に、制御ＥＣＵ（７１）を経由する入出力端子からの放電を制限することで、エンジン始動用バッテリー（バッテリーパック６１）を過放電から適切に保護できる。 According to such a configuration, the control ECU (71) controls when the battery voltage when the engine switch (21) is turned on falls below a predetermined second predetermined value smaller than the first predetermined value. By limiting the discharge from the input / output terminals via the ECU (71), the engine starting battery (battery pack 61) can be appropriately protected from over-discharge.
［３］さらに別の態様に係るエンジン始動用バッテリー（バッテリーパック６１）の保護制御装置は、［２］に記載のエンジン始動用バッテリー（バッテリーパック６１）の保護制御装置であって、
　前記制御ＥＣＵ（７１）は、前記エンジンスイッチ（２１）のオン時のバッテリー電圧が前記第２の所定値よりも小さい予め定められた第３の所定値を下回る場合に、前記一又は二以上のバッテリーセル（６１１）と前記制御ＥＣＵ（７１）を電気的に遮断する。 [3] The protection control device for the engine starting battery (battery pack 61) according to still another aspect is the protection control device for the engine starting battery (battery pack 61) according to [2].
The control ECU (71) has one or more of the above when the battery voltage when the engine switch (21) is turned on is lower than the second predetermined value and is lower than the predetermined third predetermined value. The battery cell (611) and the control ECU (71) are electrically cut off.
　このような構成によれば、制御ＥＣＵ（７１）は、エンジンスイッチ（２１）のオン時のバッテリー電圧が第２の所定値よりも小さい予め定められた第３の所定値を下回る場合に、一又は二以上のバッテリーセル（６１１）と制御ＥＣＵ（７１）を電気的に遮断することで、一又は二以上のバッテリーセル（６１１）を過放電から適切に保護できる。 According to such a configuration, the control ECU (71) determines that the battery voltage when the engine switch (21) is turned on is lower than the second predetermined value and falls below a predetermined third predetermined value. Alternatively, by electrically shutting off the two or more battery cells (611) and the control ECU (71), one or more battery cells (611) can be appropriately protected from over-discharging.
［４］さらに別の態様に係るエンジン始動用バッテリー（バッテリーパック６１）の保護制御装置は、［１］から［３］のいずれか一つに記載のエンジン始動用バッテリー（バッテリーパック６１）の保護制御装置であって、
　前記制御ＥＣＵ（７１）は、前記バッテリーセル（６１１）の温度上昇率が予め定められた温度上昇率を超える場合に、前記制御ＥＣＵ（７１）を経由する入出力を制限する。 [4] The protection control device for the engine starting battery (battery pack 61) according to still another aspect is the protection of the engine starting battery (battery pack 61) according to any one of [1] to [3]. It ’s a control device,
The control ECU (71) limits input / output via the control ECU (71) when the temperature rise rate of the battery cell (611) exceeds a predetermined temperature rise rate.
　このような構成によれば、制御ＥＣＵ（７１）は、バッテリーセル（６１１）の温度上昇率が予め定められた温度上昇率を超える場合に、制御ＥＣＵ（７１）を経由する入出力を制限することで、バッテリーセル（６１１）の異常発熱による発火等の事故を抑制できる。 According to such a configuration, the control ECU (71) limits the input / output via the control ECU (71) when the temperature rise rate of the battery cell (611) exceeds a predetermined temperature rise rate. This makes it possible to suppress accidents such as ignition due to abnormal heat generation of the battery cell (611).
１　　エンジン
１２　　リコイルスタータ
１２１　　スターターグリップ
１３　　チャージコイル
１４　　レギュレータ
１５　　点火コイル
１６　　点火プラグ
２１　　エンジンスイッチ
２２　　エンジン始動操作スイッチ
２３　　外部機器用のスイッチ
２３１　　チョーク切換スイッチ
２４　　配線カプラ
２５　　コントロールハーネス
２５１　　エンジン充電入力線
２５２　　エンジンスイッチ操作検知線
２５３　　エンジン始動操作検知線
２５４　　セルモータリレー制御線
２５５　　バルブ機器出力線
２５６　　バッテリー電圧常時印加線
３　　セルモータ
４　　セルモータリレー
４１　　接点
５　　外部機器
５１　　バルブコントロールユニット
５２　　チョークバルブ
６　　バッテリーユニット
６ａ　　突起部
６ｂ　　緩衝材
６１　　バッテリーパック
６１１　　バッテリーセル
６２　　筐体
６２ａ　　突起部
６３　　配線カプラ
６４　　セルモータ給電端子
６４１　　電力線（第１の電力線）
６４２　　ヒューズ
６５　　バッテリー保護リレー
６６　　外部充電入力端子
６７　充電出力端子
６７１　　ＵＳＢ出力端子
６８　　インジケータ
６９　　充電残量確認ボタン
７　　始動制御装置
７１　　制御ＥＣＵ
７１１　　保護回路
７１２　　エンジン充電入力端子
７１３　　電源検知端子
７１４　　エンジン始動操作検知端子
７１５　　セルモータリレー制御端子
７１６　　外部機器出力端子
７１７　　常時電圧出力端子
８　　ケース
９　　カバー
９ａ，９ｂ　　窓
９１　　ボルト 1 Engine 12 Recoil Starter 121 Starter Grip 13 Charge Coil 14 Regulator 15 Ignition Coil 16 Ignition Plug 21 Engine Switch 22 Engine Start Operation Switch 23 Switch for External Equipment 231 Choke Changeover Switch 24 Wiring Coupler 25 Control Harness 251 Engine Charging Input Line 252 Engine Switch operation detection line 253 Engine start operation detection line 254 Cell motor relay control line 255 Valve device output line 256 Battery voltage constant application line 3 Starter motor 4 Starter motor relay 41 Contact 5 External device 51 Valve control unit 52 Chalk valve 6 Battery unit 6a Protrusion 6b Buffer material 61 Battery pack 611 Battery cell 62 Housing 62a Protrusion 63 Wiring coupler 64 Starter power supply terminal 641 Power line (first power line)
642 Fuse 65 Battery protection relay 66 External charge input terminal 67 Charge output terminal 671 USB output terminal 68 Indicator 69 Charge remaining amount confirmation button 7 Start control device 71 Control ECU
711 Protection circuit 712 Engine charge input terminal 713 Power supply detection terminal 714 Engine start operation detection terminal 715 Cell motor relay control terminal 716 External device output terminal 717 Constant voltage output terminal 8 Case 9 Cover 9a, 9b Window 91 Bolt

Claims (4)

  1. 　エンジンをクランキングさせるセルモータの電源となるエンジン始動用バッテリーの保護制御装置であって、
    　前記エンジン始動用バッテリーを構成する一又は二以上のバッテリーセルの充放電を制御する制御ＥＣＵと、
    　前記一又は二以上のバッテリーセルの過充電及び過放電から前記一又は二以上のバッテリーセルを保護する保護回路と、
    　を備え、
    　前記制御ＥＣＵは、エンジンスイッチのオン時のバッテリー電圧が予め定められた第１の所定値を下回る場合に、前記セルモータへの電気の供給を制限する、
    エンジン始動用バッテリーの保護制御装置。     It is a protection control device for the battery for starting the engine, which is the power source for the starter motor that cranks the engine.
    A control ECU that controls charging / discharging of one or more battery cells constituting the engine starting battery, and
    A protection circuit that protects the one or more battery cells from overcharging and overdischarging the one or more battery cells.
    Equipped with
    The control ECU limits the supply of electricity to the starter motor when the battery voltage when the engine switch is turned on falls below a predetermined first predetermined value.
    Battery protection control device for starting the engine.
  2. 　前記制御ＥＣＵは、前記エンジンスイッチのオン時のバッテリー電圧が前記第１の所定値よりも小さい予め定められた第２の所定値を下回る場合に、前記制御ＥＣＵを経由する入出力端子からの放電を制限する、
    請求項１に記載のエンジン始動用バッテリーの保護制御装置。     The control ECU discharges from the input / output terminal via the control ECU when the battery voltage when the engine switch is turned on is lower than the first predetermined value and falls below a predetermined second predetermined value. To limit,
    The protection control device for an engine starting battery according to claim 1.
  3. 　前記制御ＥＣＵは、前記エンジンスイッチのオン時のバッテリー電圧が前記第２の所定値よりも小さい予め定められた第３の所定値を下回る場合に、前記一又は二以上のバッテリーセルと前記制御ＥＣＵを電気的に遮断する、
    　請求項２に記載のエンジン始動用バッテリーの保護制御装置。     The control ECU includes the one or more battery cells and the control ECU when the battery voltage when the engine switch is turned on is lower than a predetermined third predetermined value smaller than the second predetermined value. Electrically shut off,
    The protection control device for an engine starting battery according to claim 2.
  4. 　前記制御ＥＣＵは、前記バッテリーセルの温度上昇率が予め定められた温度上昇率を超える場合に、前記制御ＥＣＵを経由する入出力を制限する、
    　請求項１から３のいずれか一項に記載のエンジン始動用バッテリーの保護制御装置。     The control ECU limits input / output via the control ECU when the temperature rise rate of the battery cell exceeds a predetermined temperature rise rate.
    The protection control device for an engine starting battery according to any one of claims 1 to 3.
PCT/JP2021/046406 2020-12-25 2021-12-16 Protection control device for engine starting battery WO2022138412A1 (en)

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Publication number Priority date Publication date Assignee Title
JPH0966880A (en) * 1995-08-31 1997-03-11 Suzuki Motor Corp Power supply device of power assisted bicycle
JP2010273412A (en) * 2009-05-20 2010-12-02 Nissan Motor Co Ltd Charge control unit for secondary battery
JP2016162492A (en) * 2015-02-26 2016-09-05 Ｃｏｎｎｅｘｘ Ｓｙｓｔｅｍｓ株式会社 Composite battery
WO2016152516A1 (en) * 2015-03-25 2016-09-29 株式会社Ｇｓユアサ Electricity storage element monitoring device, electricity storage device, and electricity storage element monitoring method

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