JP6419285B1 - Engine starter - Google Patents

Engine starter Download PDF

Info

Publication number
JP6419285B1
JP6419285B1 JP2017193234A JP2017193234A JP6419285B1 JP 6419285 B1 JP6419285 B1 JP 6419285B1 JP 2017193234 A JP2017193234 A JP 2017193234A JP 2017193234 A JP2017193234 A JP 2017193234A JP 6419285 B1 JP6419285 B1 JP 6419285B1
Authority
JP
Japan
Prior art keywords
motor
starter
engine
generator motor
changeover switch
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
JP2017193234A
Other languages
Japanese (ja)
Other versions
JP2019065791A (en
Inventor
金田 直人
直人 金田
今村 直樹
直樹 今村
亀井 光一郎
光一郎 亀井
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2017193234A priority Critical patent/JP6419285B1/en
Application granted granted Critical
Publication of JP6419285B1 publication Critical patent/JP6419285B1/en
Publication of JP2019065791A publication Critical patent/JP2019065791A/en
Application status is Active legal-status Critical

Links

Images

Abstract

By sharing a battery and a power supply device between a starter motor and a generator motor, the battery and power supply device dedicated to the starter motor are not required, and the space in the vehicle is effectively used and the cost is reduced. Provided is an engine starter that can be downed. A power supply device (21) that supplies power from a common battery (4) by switching to a starting motor (3) or a generator motor (2) is provided, and the power supply device (21) has a starter start condition set in advance when the engine is started. The engine starter 10 supplies power to the starter motor 3 when the condition is satisfied, and supplies power to the generator motor 2 when the starter start condition is not satisfied. [Selection] Figure 2

Description

  The present invention relates to a starter motor for driving an engine and an engine starter including a generator motor.

  Conventionally, in a vehicle that performs automatic engine stop and restart control that automatically stops the engine when the engine stop condition is satisfied and then restarts the engine when the restart condition is satisfied, the engine is cranked when the engine is started. A motor equipped with a starter motor and a generator motor is known.

  In such a vehicle, in cranking when starting the engine, the generator motor and the starter are selectively used according to the situation, and the engine is started.

  Here, in the restart after the engine is automatically stopped, the engine is cranked by the first start system including the lithium ion battery and the motor generator (generator motor) connected to the lithium ion battery, and the first start system is abnormal. An engine starter that cranks and restarts the engine in a second starter system including a lead battery and a starter motor (starter) connected to the lead battery is known (for example, Patent Document 1).

  In addition, when the temperature of the engine is below a predetermined temperature, the engine is cranked by a low voltage starter motor (starter), and otherwise, the engine is cranked by a high voltage belt type integrated starter generator (generator motor). An engine starter that ranks and starts an engine is known (see, for example, Patent Document 2).

JP, 2006-194253, A Japanese Patent Laying-Open No. 2015-152011

  However, the prior art has the following problems. For example, in Patent Document 1, the generator motor uses the power of a lithium ion battery, and the starter cranks the engine using the power of a lead battery. In Patent Document 2, the generator motor uses the power of the high voltage battery, and the starter uses the power of the low voltage power supply to crank the engine.

  In a conventional engine starter, the starter cranks the engine when the generator motor system is abnormal or when the temperature is lower than a predetermined temperature. In general, a dedicated battery is attached to a few starters, and the arrangement of the battery presses the space in the vehicle and increases the cost.

  The present invention has been made in order to solve the above-described problems. By sharing a battery and a power supply device between the starting motor and the generator motor, the battery dedicated to the starting motor and An object is to eliminate the need for a power supply device, to effectively use the space in the vehicle, and to reduce the cost.

An engine starter according to the present invention is an engine starter provided with a starter motor and a generator motor that drive the engine, and supplies a common battery power to the starter motor or the generator motor. Power supply device
The generator motor is an AC machine having a three-phase winding,
The starting motor is a DC machine,
The power supply device
Three sets of series circuits in which a positive-side switching element connected to the positive electrode of the battery and a negative-side switching element connected to the negative electrode of the battery are connected in series are provided for each of the three phases. Inverter circuit,
The intermediate connection point of the series circuit for the first phase is switched to and connected to one end of a DC power supply terminal that supplies DC power to the first phase winding of the generator motor or the winding of the starting motor. A first changeover switch,
When the starter start condition set in advance is satisfied at the time of starting the engine, the first changeover switch is switched to the connection on the starter motor side, and each switching element of the series circuit for the first phase is changed. ON / OFF control to supply DC power to the starting motor,
When the starter start condition is not satisfied, the first changeover switch is switched to the generator motor side connection, each switching element of the inverter circuit is controlled to be turned on / off, and AC power is supplied to the generator motor. It is.

  According to the engine starter according to the present invention, the battery can be reduced to one by sharing the battery between the generator motor and the starter motor, and the battery dedicated to the starter motor is not required. Effective use of space and cost reduction.

1 is a schematic configuration diagram of a vehicle equipped with an engine starter according to Embodiment 1 of the present invention. 1 is a schematic circuit diagram of an engine starter according to Embodiment 1 of the present invention. It is a schematic block diagram of the vehicle carrying the engine starting device which concerns on Embodiment 2 of this invention. FIG. 5 is a schematic circuit diagram of an engine starter according to Embodiment 2 of the present invention. It is a schematic circuit diagram of the starting device of the engine which concerns on other embodiment of this invention.

Embodiment 1 FIG.
An engine starter 10 according to Embodiment 1 will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of a vehicle equipped with an engine starting device 10. FIG. 2 is a schematic circuit diagram of the engine starting device 10.

  As shown in FIG. 1, the engine starter 10 includes a starter motor 3 (so-called starter) and a generator motor 2 that drive the engine 1 (crankshaft 11). The engine starter 10 includes a power supply device 21 that supplies the power of the common battery 4 by switching to the starter motor 3 or the generator motor 2.

  The engine starter 10 rotationally drives the crankshaft 11 of the engine 1 to increase the rotational speed of the crankshaft 11 and start the engine 1. The engine 1 is controlled by the engine control device 5. The engine 1 has an automatic stop function and a restart function that automatically stops the engine 1 during idling and during electric running using the driving force of the electric motor, in addition to the function of starting the engine by turning on the ignition key. ing.

<Generator motor 2>
The generator motor 2 has both a generator function and a motor function. The generator motor 2 is an AC machine having three-phase windings 41, 42 and 43. In the present embodiment, the generator motor 2 is a winding field type synchronous machine, the rotor is provided with a field winding 44, and the stator is provided with three-phase windings 41, 42, 43. Is provided. The rotating shaft of the rotor is always connected to the crankshaft 11 by a belt and pulley mechanism 12. During power generation (regeneration), the generator motor 2 generates power using the rotational driving force of the engine 1 and charges the battery 4. At the time of power running, the generator motor 2 is powered using the power of the battery 4 to drive the engine 1 to rotate. When the engine 1 is started, the generator motor 2 is powered, and after the start is completed, the generator motor 2 generates power. Further, the generator motor 2 may be powered when assisting the torque of the engine 1 after the start is completed.

<Starting motor 3>
The starting motor 3 is an AC machine having three-phase windings 51, 52 and 53. In the present embodiment, the generator motor 2 is a permanent magnet field synchronous machine, the rotor is provided with a permanent magnet, and the stator is provided with three-phase windings 51, 52, and 53. ing. The starting electric motor 3 may be a three-phase induction machine. The starter motor 3 includes a pinion gear 31 that is connected to the rotating shaft of the rotor and is movable in the axial direction, and an electromagnetic solenoid 32 that pushes the pinion gear 31 toward the ring gear 13 of the engine 1 and meshes.

<Power supply device 21>
As shown in FIG. 2, the power supply device 21 includes an inverter circuit 60 that converts the DC power of the battery 4 into AC power and supplies the AC power to the three-phase winding. The inverter circuit 60 is a series circuit in which a positive switching element (upper arm) connected to the positive electrode of the battery 4 and a negative switching element (lower arm) connected to the negative electrode of the battery 4 are connected in series. Three sets of (legs) are provided corresponding to the windings of each of the three phases. A diode is connected in antiparallel to each switching element. In the present embodiment, the U phase is the first phase, the V phase is the second phase, and the W phase is the third phase. The U phase may be the second phase or the third phase, the V phase may be the first phase or the third phase, and the W phase may be the first phase or the second phase.

  The power supply device 21 also includes a field winding switching element 64 that turns on / off the power supply from the battery 4 to the field winding 44. As each switching element, a MOSFET (Metal Oxide Semiconductor Field Effect Transistor), an IGBT (Insulated Gate Bipolar Transistor), or the like is used.

  The power supply device 21 switches and connects the intermediate connection point of the first-phase series circuit 61 to the first-phase winding 41 of the generator motor 2 or the first-phase winding 51 of the starting motor 3. The intermediate connection point of the first changeover switch 71 and the second phase series circuit 62 is switched and connected to the second phase winding 42 of the generator motor 2 or the second phase winding 52 of the starting motor 3. The intermediate connection point of the second changeover switch 72 and the third phase series circuit 63 is switched to the third phase winding 43 of the generator motor 2 or the third phase winding 53 of the starting motor 3. And a third changeover switch 73 to be connected. In the present embodiment, the first, second, and third changeover switches 71, 72, and 73 are electromagnetic switches that change the contact by the driving force of the coil.

<Control device 22>
The power supply device 21 includes a control device 22 that controls each switching element, each changeover switch, and the like. The control device 22 includes an arithmetic processing device such as a CPU (Central Processing Unit), a storage device, an input circuit that inputs an external signal to the arithmetic processing device, an output circuit that outputs an external signal from the arithmetic processing device, and an engine control device And a communication device for performing data communication with an external device such as 5. The input circuit includes an A / D converter that inputs output signals of sensors such as a rotor rotation angle sensor, a current sensor, and a voltage sensor to an arithmetic processing unit. The output circuit includes a gate drive circuit that outputs an on / off drive signal for the gate terminal of each switching element, a coil of each changeover switch, a drive circuit that turns on and off the electromagnetic solenoid 32, and the like. The communication device performs data communication based on a CAN (Controller Area Network) or the like via a communication line. In each control of the control device 22, the arithmetic processing device executes software (program) stored in the storage device and cooperates with other hardware of the control device 22 such as the storage device, input circuit, output circuit, and communication device. Realized by working. In the present embodiment, the generator motor 2, the power supply device 21, and the control device 22 are integrally configured. In FIG. 2 (the same applies to FIGS. 4 and 5 to be described later), illustration of connection lines connecting the control device 22, each switching element, and each coil is omitted.

  When the starter start condition set in advance is satisfied when the engine 1 is started, the control device 22 supplies power to the starter motor 3, and when the starter start condition is not satisfied, the control motor 22 To supply power.

  In the present embodiment, the control device 22 switches the first, second, and third changeover switches 71, 72, and 73 to the connection on the starter motor 3 side when the starter start condition is satisfied, and the inverter circuit Each switching element 60 is turned on / off to supply AC power to the starting motor 3 to generate power running torque. Further, when the starter start condition is satisfied, the control device 22 supplies electric power to the electromagnetic solenoid 32 and meshes the pinion gear 31 with the ring gear 13. On the other hand, when the starter start condition is no longer satisfied, the control device 22 stops the power supply to the electromagnetic solenoid 32 and releases the meshing between the pinion gear 31 and the ring gear 13. The engine control device 5 may be configured to turn on and off the energization of the electromagnetic solenoid 32.

When the starter start condition is not satisfied, the control device 22 switches the first, second, and third changeover switches 71, 72, and 73 to the connection on the generator motor 2 side, and each switching element provided in the inverter circuit 60 Is turned on / off to supply AC power to the generator motor 2 to generate power running torque. Further, when the starter start condition is not satisfied, the control device 22 turns on and off the field winding switching element 64 by PWM (Pulse Width Modulation) control.

  Various variations are conceivable for the starter start conditions depending on the specifications of the generator motor 2 and the starter motor 3. For example, after starting the engine, the control device 22 determines that the starter start condition is satisfied, and supplies AC power to the starter motor 3 to generate power running torque. The control device 22 determines that the starter start condition is not satisfied when the rotational speed of the engine 1 is equal to or higher than a preset switching rotational speed, and supplies AC power to the generator motor 2. Generate power running torque. In this case, the starter motor 3 may have a high torque specification at a low rotational speed, and the generator motor 2 may have a high torque specification at a high rotational speed.

  Alternatively, the control device 22 determines that the starter start condition is satisfied at the first start due to the driver turning on the ignition key, and supplies AC power to the starter motor 3 to increase the power running torque. Is generated. The control device 22 determines that the starter start condition is not satisfied when the engine 1 is restarted after the engine is automatically stopped during idling and the engine is automatically stopped during electric driving after the initial start. AC power is supplied to the generator motor 2 to generate power running torque.

  Alternatively, when the temperature related to the engine 1 such as the water temperature at the start is equal to or lower than a preset determination temperature, the control device 22 determines that the starter start condition is satisfied, and sets the starter motor 3 to AC power may be supplied to generate power running torque. On the other hand, the control device 22 determines that the starter start condition is not satisfied when the temperature of the engine 1 at the start is higher than the determination temperature, and supplies AC power to the generator motor 2 to generate power running torque. You may let them.

  Alternatively, the control device 22 may determine that the starter start condition is satisfied when an abnormality occurs in the generator motor 2 and supply AC power to the starter motor 3 to generate power running torque. Good. Alternatively, the control device 22 may determine that the starter start condition is not satisfied when an abnormality occurs in the starter motor 3 and supply AC power to the generator motor 2 to generate power running torque. Good.

  The engine control device 5 may be configured to determine whether the starter start condition is satisfied and to transmit the determination result to the control device 22.

  After the start of the engine 1 is completed, the control device 22 switches the first, second, and third changeover switches 71, 72, 73 to the connection on the generator motor 2 side, and switches each switching element provided in the inverter circuit 60. On / off control is performed to generate regenerative torque or power running torque in the generator motor 2, and the field winding switching element 64 is turned on / off by PWM control.

  When power is supplied to the starter motor 3 for starting the engine 1, power is not normally supplied to the generator motor 2, so the power supply device 21 is shared by the generator motor 2 and the starter motor 3. There is no problem. Therefore, by providing the first, second, and third changeover switches 71, 72, and 73, the battery 4 and the power supply device 21 (inverter circuit 60) are shared by the generator motor 2 and the starter motor 3, thereby providing an inverter. The number of circuits and their control devices can be reduced to one, and the cost can be reduced. Even in a state where the regenerative torque is generated in the generator motor 2, it can be dealt with by switching so that power is supplied from the power supply device 21 to the starter motor 3 only during the period of starting the engine 1.

  When the rated voltage of the battery 4 is higher than the rated voltage of the starting motor 3, for example, when the rated voltage of the battery 4 is 48V and the rated voltage of the starting motor 3 is 12V, the control device 22 In the on / off control of each switching element of the inverter circuit 60, the on period is decreased, and the effective alternating voltage applied to the three-phase coil of the starter motor 3 is reduced to 12V.

  According to the engine starting device 10 described above, electric power can be supplied to the generator motor 2 and the starting motor 3 by one common battery 4 and one power supply device 21 (inverter circuit 60). Thus, it is possible to reduce the cost of the battery and the power supply device dedicated to the starter motor 3 and to reduce the arrangement space.

Embodiment 2. FIG.
Next, the engine starter 10 according to Embodiment 2 will be described. The description of the same components as those in the first embodiment is omitted. In the present embodiment, the generator motor 2 is an AC machine having the same three-phase winding as in the first embodiment, but the starter motor 3 is a DC machine unlike the first embodiment. Accordingly, the configuration of the power supply device 21 is different. FIG. 3 is a schematic configuration diagram of a vehicle equipped with the engine starting device 10 according to the present embodiment. FIG. 4 is a schematic circuit diagram of engine starter 10 according to the present embodiment.

  Also in the present embodiment, the power supply device 21 switches and supplies the power of the common battery 4 to the starter motor 3 or the generator motor 2. The generator motor 2 is an AC machine having three-phase windings 41, 42, and 43 as in the first embodiment.

<Starting motor 3>
Unlike the first embodiment, the starting motor 3 is a DC machine. In the present embodiment, the starting motor 3 is a DC commutator motor. The stator is provided with a permanent magnet, and the rotor is provided with a winding 34. The stator is provided with a pair of brushes that are supplied with DC power, and the rotor is provided with a commutator that supplies power to the winding 34 (not shown). The starting motor 3 is provided with a pair of DC power supply terminals 33 to which an external DC power supply is connected, and the DC power supply terminal 33 and the brush are connected. The starter motor 3 includes a pinion gear 31 that is connected to the rotating shaft of the rotor and is movable in the axial direction, and an electromagnetic solenoid 32 that pushes the pinion gear 31 toward the ring gear 13 of the engine 1 and meshes.

  The power supply device 21 includes an inverter circuit 60 and a field winding switching element 64 similar to those of the first embodiment.

  In the present embodiment, the power supply device 21 applies DC power to the intermediate connection point of the first phase series circuit 61 at the first phase winding 41 of the generator motor 2 or the winding of the starting motor 3. The first changeover switch 71 that is switched to and connected to one end of the DC power supply terminal 33 to be supplied (in this example, the positive terminal), the second phase winding 42 of the generator motor 2, or the winding of the starting motor 3 And a second changeover switch 72 that is connected to the other end of the DC power supply terminal 33 that supplies power (a negative terminal in this example). Further, the power supply device 21 switches the intermediate connection point of the series circuit 63 for the third phase to the third phase winding 43 of the generator motor 2 or one end of the electromagnetic solenoid 32 (in this example, the positive terminal). A third changeover switch 73 to be connected is provided. The other end (negative terminal in this example) of the electromagnetic solenoid 32 is connected to the ground (the negative electrode of the battery 4).

  Also in the present embodiment, when the starter start condition set in advance is satisfied when the engine 1 is started, the control device 22 supplies electric power to the starter motor 3 and the starter start condition is not satisfied. In this case, electric power is supplied to the generator motor 2.

  In the present embodiment, when the starter start condition is satisfied, the control device 22 switches the first and second changeover switches 71 and 72 to the connection on the starter motor 3 side, and the first phase series circuit 61 and the switching elements of the series circuit 62 for the second phase are on / off controlled to supply DC power to the starting motor 3. Specifically, the control device 22 turns on the positive-side switching element 61a, turns off the negative-side switching element 61b, and turns off the second-phase series circuit 62 for the first-phase series circuit 61. , The positive side switching element 62a is turned off and the negative side switching element 62b is turned on. As a result, the DC voltage of the battery 4 is applied to the DC power supply terminal 33 of the starting motor 3.

  In addition, when the starter start condition is satisfied, the control device 22 switches the third changeover switch 73 to the connection on the starter motor 3 side, and performs on / off control of each switching element of the third phase series circuit 63. Then, electric power is supplied to the electromagnetic solenoid 32. Specifically, the control device 22 turns on the switching element 63a on the positive electrode side and turns off the switching element 63b on the negative electrode side in the series circuit 63 for the third phase. As a result, the DC voltage of the battery 4 is applied to the electromagnetic solenoid 32, and the pinion gear 31 is engaged with the ring gear 13.

  When the rated voltage of the battery 4 is higher than the rated voltage of the starting motor 3, for example, when the rated voltage of the battery 4 is 48V and the rated voltage of the starting motor 3 is 12V, the control device 22 When the starter start condition is satisfied, the direct current power has an on-duty ratio (for example, 12/48 × 100% = 25%) corresponding to the voltage ratio of the rated voltage of the starting motor 3 to the rated voltage of the battery 4. On / off control of the switching element that supplies DC power to the supply terminal 33 is performed. Specifically, the control device 22 sets the switching element 61a on the positive side of the series circuit 61 for the first phase and the switching element 62b on the negative side of the series circuit 62 for the second phase to an on-duty corresponding to the voltage ratio. On / off control is synchronized with the ratio. Since the switching element of the inverter circuit 60 is used, high-speed PWM control can be performed, and even when the battery 4 having a high rated voltage is used, the starting motor 3 having a low rated voltage can be used.

  The control device 22 always turns off the negative-side switching element 61b of the first-phase series circuit 61 and the positive-side switching element 62a of the second-phase series circuit 62. When the rated voltage of the battery 4 is equal to the rated voltage of the starting motor 3, the switching element 61a on the positive side of the first phase series circuit 61 and the negative side of the second phase series circuit 62 are provided. The switching element 62b is always on (100% on-duty ratio).

When the starter start condition is not satisfied, the control device 22 switches the first, second, and third changeover switches 71, 72, and 73 to the connection on the generator motor 2 side, and each switching element provided in the inverter circuit 60 Is turned on / off to supply AC power to the generator motor 2 to generate power running torque. Further, when the starter start condition is not satisfied, the control device 22 turns on and off the field winding switching element 64 by PWM (Pulse Width Modulation) control.

[Other Embodiments]
Finally, other embodiments of the present invention will be described. Note that the configuration of each embodiment described below is not limited to being applied independently, and can be applied in combination with the configuration of other embodiments as long as no contradiction arises.

(1) In each of the above embodiments, the case where the generator motor 2 is a generator motor connected to the crankshaft 11 by the belt and pulley mechanism 12 has been described as an example. However, the embodiment of the present invention is not limited to this. That is, the generator motor 2 may be an arbitrary generator motor mounted on the vehicle. For example, the generator motor 2 may be a generator motor provided in a power transmission path between the engine 1 and the transmission, or may be a generator motor incorporated in the transmission.

(2) In each of the embodiments described above, the case where the generator motor 2 and the power supply device 21 (inverter circuit 60, control device 22) are integrally configured has been described as an example. However, the embodiment of the present invention is not limited to this. That is, the generator motor 2 and the power supply device 21 may be separate.

(3) The first, second, and third changeover switches 71, 72, and 73 may be provided inside the case of the power supply device 21, or may be provided outside the case of the power supply device 21.

(4) In each of the above embodiments, the case where the starting motor 3 has the electromagnetic solenoid 32 that pushes the pinion gear 31 toward the ring gear 13 of the engine 1 and meshes with the pinion gear 31 has been described as an example. However, the embodiment of the present invention is not limited to this. That is, the starting motor 3 is of a constantly meshing type in which the pinion gear 31 is always meshed with the ring gear 13 of the engine 1, and is provided with an electromagnetic solenoid 32 and a drive circuit for turning on and off the electromagnetic solenoid 32 or a third changeover switch 73. It does not have to be.

(5) In the above-described second embodiment, the power supply device 21 uses the intermediate connection point of the first phase series circuit 61 as the first phase winding 41 of the generator motor 2 or the starter motor 3. A first changeover switch 71 that is switched and connected to one end (a positive terminal in this example) of a DC power supply terminal 33 that supplies DC power to the winding, and a second phase winding 42 of the generator motor 2 or a starting motor. As an example, a case has been described in which the second changeover switch 72 that is switched and connected to the other end of the DC power supply terminal 33 that supplies DC power to the third winding (the negative electrode terminal in this example) is provided. However, the embodiment of the present invention is not limited to this. That is, as shown in FIG. 5, the power supply device 21 does not include the second changeover switch 72 of the second embodiment, and the intermediate connection point of the series circuit 61 for the first phase is connected to the first connection point of the generator motor 2. A first changeover switch 71 that is switched and connected to one end of the DC power supply terminal 33 that supplies DC power to the one-phase winding 41 or the winding of the starting motor 3 (in this example, the positive terminal); The other end (the negative terminal in this example) of the DC power supply terminal 33 may be connected to the ground (the negative electrode of the battery 4).

  In this case, when the starter start condition is satisfied, the control device 22 switches the first changeover switch 71 to the connection on the starter motor 3 side, and turns on / off each switching element of the first-phase series circuit 61. By controlling, DC power is supplied to the starting motor 3. Specifically, in the first-phase series circuit 61, the control device 22 turns on the positive-side switching element 61a and turns off the negative-side switching element 61b.

  It should be noted that the present invention can be freely combined with each other within the scope of the invention, and each embodiment can be appropriately modified or omitted.

1 engine, 2 generator motor, 3 starter motor, 4 battery, 5 engine control device, 10 engine start device, 12 belt and pulley mechanism, 13 ring gear, 21 power supply device, 31 pinion gear, 32 electromagnetic solenoid, 33 DC power Supply terminal, 41, 42, 43 Three-phase winding, 44 Field winding, 51, 52, 53 Three-phase winding, 60 Inverter circuit, 61, 62, 63 Series circuit, 71 First changeover switch, 72 Second Changeover switch, 73 Third changeover switch

Claims (9)

  1. An engine starter comprising a starter motor and a generator motor for driving an engine,
    A power supply device that switches and supplies the power of a common battery to the starter motor or the generator motor;
    The generator motor is an AC machine having a three-phase winding,
    The starting motor is a DC machine,
    The power supply device
    Three sets of series circuits in which a positive-side switching element connected to the positive electrode of the battery and a negative-side switching element connected to the negative electrode of the battery are connected in series are provided for each of the three phases. Inverter circuit,
    The intermediate connection point of the series circuit for the first phase is switched to and connected to one end of a DC power supply terminal that supplies DC power to the first phase winding of the generator motor or the winding of the starting motor. A first changeover switch,
    When the starter start condition set in advance is satisfied at the time of starting the engine, the first changeover switch is switched to the connection on the starter motor side, and each switching element of the series circuit for the first phase is changed. ON / OFF control to supply DC power to the starting motor,
    When the starter start condition is not satisfied, the engine that supplies the AC power to the generator motor by switching the first changeover switch to the connection on the generator motor side and controlling each switching element of the inverter circuit on and off Starting device.
  2. The power supply device
    A second changeover switch for switching and connecting the intermediate connection point of the series circuit for the second phase to the second phase winding of the generator motor or the other end of the DC power supply terminal;
    When the starter start condition is satisfied, the first changeover switch and the second changeover switch are switched to the connection on the starter motor side, and the first phase series circuit and the second phase series are switched. ON / OFF control of each switching element of the circuit to supply DC power to the starting motor,
    When the starter start condition is not satisfied, the first changeover switch and the second changeover switch are switched to the connection on the generator motor side, each switching element of the inverter circuit is controlled to be turned on and off, and the generator motor is The engine starting device according to claim 1, wherein AC power is supplied.
  3. The starting motor includes an electromagnetic solenoid that moves a pinion gear connected to a rotating shaft of a rotor to a ring gear side of the engine,
    The power supply device includes a third changeover switch for switching and connecting an intermediate connection point of the series circuit for the third phase to the third phase winding of the generator motor or the electromagnetic solenoid,
    When the starter start condition is satisfied, the third changeover switch is switched to the starter motor side connection, each switching element of the third phase series circuit is turned on / off, and the electromagnetic solenoid is turned on. The engine starting device according to claim 1 or 2, wherein electric power is supplied.
  4. The rated voltage of the battery is higher than the rated voltage of the starting motor,
    When the starter start condition is satisfied, the power supply device has a DC power supply terminal connected to the DC power supply terminal at an on-duty ratio corresponding to a voltage ratio of the rated voltage of the starting motor to the rated voltage of the battery. The engine starting device according to any one of claims 1 to 3, wherein the switching element that supplies power is on / off controlled.
  5. An engine starter comprising a starter motor and a generator motor for driving an engine,
    A power supply device that switches and supplies the power of a common battery to the starter motor or the generator motor;
    The generator motor is an AC machine having a three-phase winding,
    The starting motor is an AC machine having a three-phase winding,
    The power supply device
    Three sets of series circuits in which a positive-side switching element connected to the positive electrode of the battery and a negative-side switching element connected to the negative electrode of the battery are connected in series are provided for each of the three phases. Inverter circuit,
    A first changeover switch for switching and connecting the intermediate connection point of the series circuit for the first phase to the first phase winding of the generator motor or the first phase winding of the starting motor;
    A second changeover switch for switching and connecting the intermediate connection point of the series circuit for the second phase to the second phase winding of the generator motor or the second phase winding of the starting motor;
    A third changeover switch for switching and connecting the intermediate connection point of the series circuit for the third phase to the third phase winding of the generator motor or the third phase winding of the starting motor; ,
    When a predetermined starter start condition is satisfied at the time of starting the engine, the first changeover switch, the second changeover switch, and the third changeover switch are switched to the connection on the starter motor side, On / off control of each switching element of the inverter circuit to supply power to the starting motor,
    When the starter start condition is not satisfied, the first changeover switch, the second changeover switch, and the third changeover switch are switched to the connection on the generator motor side, and each switching element of the inverter circuit is controlled to be on / off. An engine starting device for supplying electric power to the generator motor.
  6. The starting motor includes an electromagnetic solenoid that moves a pinion gear connected to a rotating shaft of a rotor to a ring gear side of the engine,
    6. The engine starter according to claim 5, wherein the power supply device supplies power to the electromagnetic solenoid when the starter start condition is satisfied.
  7.   The power supply device determines that the starter start condition is satisfied after the start of the engine, supplies power to the starter motor, and the engine rotation speed is set to a preset rotation speed. The engine starter according to any one of claims 1 to 6, wherein when it becomes the above, it is determined that the starter start condition is not satisfied, and electric power is supplied to the generator motor.
  8.   The engine starting device according to any one of claims 1 to 7, wherein the generator motor is always connected to a crankshaft of the engine by a belt and pulley mechanism.
  9.   The engine starting device according to any one of claims 1 to 8, wherein the power supply device is integrated with the generator motor.
JP2017193234A 2017-10-03 2017-10-03 Engine starter Active JP6419285B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017193234A JP6419285B1 (en) 2017-10-03 2017-10-03 Engine starter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017193234A JP6419285B1 (en) 2017-10-03 2017-10-03 Engine starter

Publications (2)

Publication Number Publication Date
JP6419285B1 true JP6419285B1 (en) 2018-11-07
JP2019065791A JP2019065791A (en) 2019-04-25

Family

ID=64098798

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017193234A Active JP6419285B1 (en) 2017-10-03 2017-10-03 Engine starter

Country Status (1)

Country Link
JP (1) JP6419285B1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05111110A (en) * 1991-10-09 1993-04-30 Mitsubishi Electric Corp Power supply for electric vehicle
JPH11270445A (en) * 1998-03-20 1999-10-05 Mitsubishi Electric Corp Starter of engine with motor generator
JP2005009439A (en) * 2003-06-20 2005-01-13 Toyota Motor Corp Control device of vehicle and motor-generator unit
JP2013112149A (en) * 2011-11-29 2013-06-10 Denso Corp Engine auxiliary machine system for two-wheeler
JP2015086720A (en) * 2013-10-28 2015-05-07 株式会社デンソー System and system control device
JP2016098748A (en) * 2014-11-25 2016-05-30 三菱電機株式会社 Engine starting control device and engine starting control method
JP2017031905A (en) * 2015-08-04 2017-02-09 スズキ株式会社 Idling stop control device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05111110A (en) * 1991-10-09 1993-04-30 Mitsubishi Electric Corp Power supply for electric vehicle
JPH11270445A (en) * 1998-03-20 1999-10-05 Mitsubishi Electric Corp Starter of engine with motor generator
JP2005009439A (en) * 2003-06-20 2005-01-13 Toyota Motor Corp Control device of vehicle and motor-generator unit
JP2013112149A (en) * 2011-11-29 2013-06-10 Denso Corp Engine auxiliary machine system for two-wheeler
JP2015086720A (en) * 2013-10-28 2015-05-07 株式会社デンソー System and system control device
JP2016098748A (en) * 2014-11-25 2016-05-30 三菱電機株式会社 Engine starting control device and engine starting control method
JP2017031905A (en) * 2015-08-04 2017-02-09 スズキ株式会社 Idling stop control device

Also Published As

Publication number Publication date
JP2019065791A (en) 2019-04-25

Similar Documents

Publication Publication Date Title
US8228020B2 (en) Apparatus and method for controlling hybrid motor
DE60119419T2 (en) Device for controlling a permanent magnet motor, either as a starter or as a generator in a motor vehicle
EP0875089B1 (en) Power supply system
US7969104B2 (en) Rotary electric system designed to utilize zero-phase circuit
EP1632019B1 (en) Pulse width modulation control circuit for multi-mode electrical machine and multimode electrical machine provided with such a control circuit
DE102005034123B4 (en) Fast torque control of a belt alternator starter
US7294984B2 (en) Motor controller
US5495127A (en) Engine starting apparatus for vehicles
JP5165669B2 (en) Engine starter
US4459536A (en) Vehicle electrical system with combined alternator and starter motor
DE60212772T2 (en) Control device and control method for a vehicle-mounted dynamoelectric machine
EP0792769B1 (en) Automotive vehicle generator, operating as generator and as electric motor and control process for such a generator
US7119513B2 (en) Control system and controlling method for motor drive four wheel drive vehicle
JP2005151685A (en) Controller and controlling method of motor driven 4wd vehicle
JP6418252B2 (en) Rotating electrical machine control device
JP2004080931A (en) Starter generator for internal combustion engine
JP5499694B2 (en) Engine start control device
US8097975B2 (en) Drive system for a motor vehicle comprising an internal combustion engine and an electric motor
JP2007074868A (en) Voltage controller for vehicle
KR101831468B1 (en) Method for operating a drive assembly in a motor vehicle, comprising an at least three-phase electric machine, and control device for an inverter
DE102011086079A1 (en) Method and device for driving an electric machine
FR2947970A1 (en) Power converter for a rotary electric machine
KR20020087943A (en) Method for controlling a polyphase and reversible rotating electrical machine for heat-engine motor vehicle
KR100611178B1 (en) Control device for motor-driven 4wd vehicle and related control method
JP2011078216A (en) Device for controlling power converter for vehicle

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20180803

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20180821

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20180831

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20180911

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20181009

R151 Written notification of patent or utility model registration

Ref document number: 6419285

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151