WO2020059111A1 - 車両用モータ駆動制御装置、及び、車両用モータ駆動制御装置の制御方法 - Google Patents

車両用モータ駆動制御装置、及び、車両用モータ駆動制御装置の制御方法 Download PDF

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Publication number
WO2020059111A1
WO2020059111A1 PCT/JP2018/035020 JP2018035020W WO2020059111A1 WO 2020059111 A1 WO2020059111 A1 WO 2020059111A1 JP 2018035020 W JP2018035020 W JP 2018035020W WO 2020059111 A1 WO2020059111 A1 WO 2020059111A1
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WIPO (PCT)
Prior art keywords
side switch
motor
low
control device
vehicle
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PCT/JP2018/035020
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English (en)
French (fr)
Japanese (ja)
Inventor
章弘 亨
Original Assignee
新電元工業株式会社
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Publication date
Application filed by 新電元工業株式会社 filed Critical 新電元工業株式会社
Priority to CN201880096949.2A priority Critical patent/CN112640295B/zh
Priority to PCT/JP2018/035020 priority patent/WO2020059111A1/ja
Priority to JP2019508274A priority patent/JP6657472B1/ja
Publication of WO2020059111A1 publication Critical patent/WO2020059111A1/ja

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
    • H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation

Definitions

  • the present invention relates to a motor drive control device for a vehicle and a control method of the motor drive control device for a vehicle.
  • FIGS. 13A and 14A show a state where a switch under PWM control is on.
  • FIGS. 13B and 14B show a state in which the switch under PWM control is off.
  • an unacceptable negative current may occur depending on the combination of the battery and the motor.
  • an object of the present invention is to provide a motor drive control device for a vehicle that can suppress generation of a negative current flowing to a battery without increasing the cost of the device or complicating the control.
  • the vehicle motor drive control device includes: A vehicle motor drive control device for converting a DC output from a battery into a three-phase AC, and supplying the three-phase AC to a three-phase motor of the vehicle to drive the vehicle.
  • a high-side switch and a low-side switch are connected in series between the power terminal and the ground terminal, and a connection point between the high-side switch and the low-side switch is the first to third motors.
  • a control unit that controls the first to third half bridges to drive the motor M includes: In accordance with the phase of the motor, while switching between the control to turn off the high-side switch and the PWM control, switching between the control to turn on the low-side switch and the PWM control, Further, during PWM control of the high-side switch, the low-side switch is PWM-controlled so that the high-side switch and the low-side switch are turned on / off complementarily.
  • the first to third half bridges are controlled so as to be energized.
  • the first half bridge includes: A first high-side switch having one end connected to the power terminal and the other end connected to the first motor terminal; A first high-side diode having a cathode connected to one end of the first high-side switch and an anode connected to the other end of the first high-side switch; A first low-side switch having one end connected to the first motor terminal and the other end connected to the ground terminal; A first low-side diode having a cathode connected to one end of the first low-side switch and an anode connected to the other end of the first low-side switch;
  • the second half bridge includes: A second high-side switch having one end connected to the power terminal and the other end connected to the second motor terminal; A second high-side diode having a cathode connected to one end of the second high-side switch and an anode connected to the other end of the second high-side switch; A second low-side switch having one end connected to the second motor terminal MT2 and the other end connected to the ground terminal;
  • the control unit includes: When energizing the motor at 120 degrees, In the first stage, the first high-side switch and the first low-side switch are PWM-controlled, the second high-side switch is turned off, the second low-side switch is PWM-controlled, and the third high-side switch is turned off.
  • the third low-side switch In a second stage following the first stage, the first high-side switch is turned off, the first low-side switch is PWM-controlled, the second high-side switch and the second low-side switch are PWM-controlled, and 3 Turn off the high-side switch and turn on the third low-side switch, In a third stage subsequent to the second stage, the first high-side switch is turned off and the first low-side switch is turned on, the second high-side switch and the second low-side switch are PWM-controlled, and the third The high side switch is turned off and the third low side switch is PWM controlled.
  • the control unit includes: When the motor is energized by 180 degrees, In a fourth stage, the first high-side switch and the first low-side switch are subjected to PWM control, the second high-side switch is turned off, the second low-side switch is turned on, and the third high-side switch and the third high-side switch are turned on. PWM control the low side switch, In a fifth stage following the fourth stage, the first high-side switch and the first low-side switch are subjected to PWM control, the second high-side switch is turned off, the second low-side switch is turned on, and the third stage is turned on.
  • the first high-side switch and the first low-side switch are subjected to PWM control
  • the second high-side switch and the second low-side switch are subjected to PWM control
  • the third high-side switch is controlled. The switch is turned off and the third low-side switch is turned on.
  • the control unit includes: The first to third half bridges are controlled based on the phase of the motor detected by the detection unit.
  • the control unit includes: The rotation speed of the motor is obtained based on the detection signal.
  • the control unit includes: When the rotation speed of the motor is lower than a preset threshold rotation speed, the first to third half bridges are controlled such that the motor is energized at 120 degrees.
  • the control unit includes: If the rotation speed of the motor is equal to or higher than the threshold rotation speed, the first to third half bridges are controlled such that the motor is energized by 180 degrees. It is characterized by the following.
  • the control unit includes: A frequency at which the high-side switch is turned on / off by PWM control is made equal to a frequency at which the low-side switch is turned on / off by PWM control.
  • the vehicle is an electric motorcycle
  • the vehicle motor drive control device is mounted on an electric motorcycle
  • the motor is connected to wheels of the electric motorcycle.
  • the battery When the battery is loaded on the electric motorcycle, the battery is not charged by regeneration, When the battery is not loaded on the electric motorcycle, the battery is charged by an external charging device.
  • the detection unit It is a Hall sensor that outputs a detection signal corresponding to the phase of the motor to the control unit.
  • the first to third high-side switches and the first to third low-side switches are MOS transistors each having one end serving as a drain and the other end serving as a source.
  • the control method of the vehicle motor drive control device includes: A motor drive control device for a vehicle for converting a direct current output from a battery into a three-phase alternating current, and supplying the three-phase alternating current to a three-phase motor of the vehicle to drive the vehicle.
  • First to third half-bridges connected to the first to third motor terminals at respective connection points of the motor M and the low-side switch;
  • the control unit includes: In accordance with the phase of the motor, while switching between the control to turn off the high-side switch and the PWM control, switching between the control to turn on the low-side switch and the PWM control, Further, during PWM control of the high-side switch, the low-side switch is PWM-controlled so that the high-side switch and the low-side switch are turned on / off complementarily.
  • a vehicle motor drive control device converts a direct current output from a battery into a three-phase alternating current, and supplies the three-phase alternating current to a three-phase motor of the vehicle to drive the vehicle.
  • Motor drive control device comprising: a power supply terminal connected to a positive electrode of a battery; a ground terminal connected to a negative electrode of the battery; a first motor terminal connected to a first coil of the motor; A high-side switch and a low-side switch are connected in series between a second motor terminal connected to the coil, a third motor terminal connected to the third coil of the motor M, and a power supply terminal and a ground terminal.
  • a first to a third half-bridge wherein connection points of the high-side switch and the low-side switch are respectively connected to the first to third motor terminals and connected in parallel with each other; And a control unit for controlling the first through third half-bridge to drive over motor M.
  • the control unit switches between the control for turning off the high-side switch and the PWM control in accordance with the phase of the motor, and switches between the control for turning on the low-side switch and the PWM control. Controlling the first to third half-bridges so that the low-side switch is PWM-controlled so that the high-side switch and the low-side switch are turned on / off complementarily, and the motor is energized 120 degrees or 180 degrees. I do.
  • the generation of a negative current flowing to the battery can be suppressed without increasing the cost of the device and complicating the control.
  • FIG. 1 is a diagram illustrating an example of the configuration of the vehicle motor drive control device 100 according to the first embodiment.
  • FIG. 2 shows the first to third half bridges (Q1, Q2), (Q3, Q4), (Q5, Q6) when the motor M is energized at 120 degrees in the control method of the vehicle motor drive control device 100.
  • FIG. 5 is a diagram showing an example of the operation sequence of FIG.
  • FIG. 3A is a diagram illustrating an example of a current path of the vehicle motor drive control device in stage 2 of the operation sequence illustrated in FIG. 2.
  • FIG. 3B is a diagram illustrating an example of a current path of the vehicle motor drive control device in stage 2 of the operation sequence illustrated in FIG. 2.
  • FIG. 1 is a diagram illustrating an example of the configuration of the vehicle motor drive control device 100 according to the first embodiment.
  • FIG. 2 shows the first to third half bridges (Q1, Q2), (Q3, Q4), (Q5, Q6) when the motor M is energized at 120 degrees in the control method of the
  • FIG. 4A is a diagram showing an example of a current path of the vehicle motor drive control device when switching from the stage 2 to the stage 3 in the operation sequence shown in FIG.
  • FIG. 4B is a diagram showing an example of a current path of the vehicle motor drive control device when switching from the stage 2 to the stage 3 in the operation sequence shown in FIG.
  • FIG. 5A is a diagram showing an example of a current path of the vehicle motor drive control device in stage 3 of the operation sequence shown in FIG.
  • FIG. 5B is a diagram illustrating an example of a current path of the vehicle motor drive control device in stage 3 of the operation sequence illustrated in FIG. 2.
  • FIG. 6A is a diagram showing an example of a current path of the vehicle motor drive control device when switching from the stage 3 to the stage 4 in the operation sequence shown in FIG.
  • FIG. 6B is a diagram showing an example of a current path of the vehicle motor drive control device when switching from the stage 3 to the stage 4 in the operation sequence shown in FIG.
  • FIG. 7 shows the first to third half bridges (Q1, Q2), (Q3, Q4), (Q5, Q3) when the motor M is energized by 180 degrees in the control method of the vehicle motor drive control device 100. It is a figure showing an example of operation sequence of Q6).
  • FIG. 8A is a diagram illustrating an example of a current path of the vehicle motor drive control device in stage 1 of the operation sequence illustrated in FIG. 7.
  • FIG. 8B is a diagram showing an example of a current path of the vehicle motor drive control device in stage 1 of the operation sequence shown in FIG. FIG.
  • FIG. 9A is a diagram showing an example of a current path of the vehicle motor drive control device when switching from the stage 1 to the stage 2 in the operation sequence shown in FIG.
  • FIG. 9B is a diagram illustrating an example of a current path of the vehicle motor drive control device when switching from the stage 1 to the stage 2 in the operation sequence illustrated in FIG. 7.
  • FIG. 10A is a diagram illustrating an example of a current path of the vehicle motor drive control device in stage 2 of the operation sequence illustrated in FIG. 7.
  • FIG. 10B is a diagram showing an example of a current path of the vehicle motor drive control device in stage 2 of the operation sequence shown in FIG. FIG.
  • 11A is a diagram illustrating an example of a current path of the vehicle motor drive control device when switching from the stage 2 to the stage 3 in the operation sequence illustrated in FIG. 7.
  • 11B is a diagram illustrating an example of a current path of the vehicle motor drive control device when switching from the stage 2 to the stage 3 in the operation sequence illustrated in FIG. 7.
  • FIG. 12 is a diagram showing an example of a conventional operation sequence of the first to third half bridges when the motor M is energized by 120 degrees in the control method of the conventional vehicle motor drive control device.
  • FIG. 13A is a diagram showing an example of a current path of the vehicle motor drive control device in stage 2 of the conventional operation sequence shown in FIG. FIG.
  • FIG. 13B is a diagram showing an example of a current path of the vehicle motor drive control device in stage 2 of the conventional operation sequence shown in FIG.
  • FIG. 14A is a diagram showing an example of a current path of the vehicle motor drive control device in stage 2 of the conventional operation sequence shown in FIG.
  • FIG. 14B is a diagram showing an example of a current path of the vehicle motor drive control device when switching from stage 2 to stage 3 in the conventional operation sequence shown in FIG.
  • the vehicle motor drive control device 100 converts, for example, a DC output from the battery B into a three-phase AC, and converts the three-phase AC into a three-phase AC of the vehicle, as illustrated in FIG.
  • the motor M is supplied and driven.
  • the vehicle is, for example, an electric motorcycle.
  • the vehicle motor drive control device 100 is mounted on an electric motorcycle.
  • the motor M is connected to the wheels of the electric motorcycle so that torque can be transferred.
  • the motor M has a star connection configuration, but may have a delta connection configuration.
  • the battery B when the battery B is not loaded on the electric motorcycle, the battery B is charged by, for example, an external charging device (not shown).
  • Such a vehicle motor drive control device 100 includes, for example, as shown in FIG. 1, a power terminal BT1, a ground terminal BT2, a first motor terminal MT1, a second motor terminal MT2, and a third motor terminal MT3. , A first half bridge (Q1, Q2), a second half bridge (Q3, Q4), a third half bridge (Q5, Q6), a detection unit RD, and a control unit CPU.
  • the first half bridge (Q1, Q2), the second half bridge (Q3, Q4), and the third half bridge (Q5, Q6) form a driver circuit X.
  • the power supply terminal BT1 is connected to the positive electrode of the battery B, for example, as shown in FIG.
  • the ground terminal BT2 is connected to the negative electrode of the battery B, for example, as shown in FIG.
  • the first motor terminal MT1 is connected to one end of a first coil L1 of the motor M, for example, as shown in FIG.
  • the other end of the first coil L1 is connected to the center terminal ML.
  • the second motor terminal MT2 is connected to one end of a second coil L2 of the motor M, for example, as shown in FIG.
  • the other end of the second coil L2 is connected to the center terminal ML.
  • the third motor terminal MT3 is connected to one end of a third coil L3 of the motor M, for example, as shown in FIG.
  • the other end of the third coil L3 is connected to the center terminal ML.
  • the first half bridge (Q1, Q2) includes a high-side switch Q1 and a low-side switch Q2 connected in series between a power supply terminal BT1 and a ground terminal BT2.
  • the first half bridge (Q1, Q2) includes, for example, as shown in FIG. 1, a first high-side switch Q1, a first high-side diode D1, a first low-side switch Q2, and a first low-side diode D2.
  • the first high-side switch Q1 has one end connected to the power supply terminal BT1 and the other end connected to the first motor terminal MT1.
  • the first high-side switch Q1 is, for example, a MOS transistor having one end as a drain and the other end as a source, as shown in FIG.
  • the first high-side diode D1 has a cathode connected to one end of the first high-side switch Q1 and an anode connected to the other end of the first high-side switch Q1.
  • the first low-side switch Q2 has one end connected to the first motor terminal MT1 and the other end connected to the ground terminal BT2.
  • the first low-side switch Q2 is, for example, a MOS transistor having one end as a drain and the other end as a source, as shown in FIG.
  • the first low-side diode D2 has a cathode connected to one end of the first low-side switch Q2 and an anode connected to the other end of the first low-side switch Q2.
  • the second half bridge (Q3, Q4) includes a high-side switch Q3 and a low-side switch Q4 connected in series between a power supply terminal BT1 and a ground terminal BT2.
  • the second half bridge includes, for example, as shown in FIG. 1, a second high-side switch Q3, a second high-side diode D3, a second low-side switch Q4, and a second low-side diode D4.
  • the second high-side switch Q3 has one end connected to the power supply terminal BT1 and the other end connected to the second motor terminal MT2.
  • the second high-side switch Q3 is, for example, a MOS transistor having one end as a drain and the other end as a source, as shown in FIG.
  • the second high-side diode D3 has a cathode connected to one end of the second high-side switch Q3 and an anode connected to the other end of the second high-side switch Q3.
  • the second low-side switch Q4 has one end connected to the second motor terminal MT2 and the other end connected to the ground terminal BT2.
  • the second low-side switch Q4 is, for example, a MOS transistor having one end as a drain and the other end as a source, as shown in FIG.
  • the second low-side diode D4 has a cathode connected to one end of the second low-side switch Q4 and an anode connected to the other end of the second low-side switch Q4.
  • the third half bridge (Q5, Q6) is configured by connecting a high-side switch Q5 and a low-side switch Q6 in series between a power terminal BT1 and a ground terminal BT2.
  • the third half bridge (Q5, Q6) includes, for example, as shown in FIG. 1, a third high-side switch Q5, a third high-side diode D5, a third low-side switch Q6, and a third low-side diode D6.
  • the third high-side switch Q5 has one end connected to the power supply terminal BT1 and the other end connected to the third motor terminal MT3.
  • the third high-side switch Q5 is, for example, a MOS transistor having one end as a drain and the other end as a source, as shown in FIG.
  • the third high-side diode D5 has a cathode connected to one end of the third high-side switch Q5 and an anode connected to the other end of the third high-side switch Q5.
  • the third low-side switch Q6 has one end connected to the third motor terminal MT3 and the other end connected to the ground terminal BT2.
  • the third low-side switch Q6 is, for example, a MOS transistor having one end as a drain and the other end as a source, as shown in FIG.
  • the third low-side diode D6 has a cathode connected to one end of the third low-side switch Q6 and an anode connected to the other end of the third low-side switch Q6.
  • the first to third half bridges (Q1, Q2), (Q3, Q4), (Q5, Q6) are connected in parallel to each other, for example, as shown in FIG.
  • the detection unit RD detects the phase of the motor M and outputs a detection signal SRD according to the detected phase of the motor M, for example, as shown in FIG.
  • the detection unit RD is, for example, a Hall sensor that outputs a detection signal SDR corresponding to the phase of the motor M to the control unit.
  • control unit CPU controls the first to third half bridges (Q1, Q2), (Q3, Q4), (Q5, Q6) to drive the motor M, for example, as shown in FIG. It has become.
  • the control unit CPU switches between the control for turning off the high-side switch and the PWM control and the control for turning on the low-side switch and the PWM control in accordance with the phase of the motor M, for example (described later). 2 and 7).
  • control unit CPU performs PWM control of the low-side switch so that the high-side switch and the low-side switch are turned on / off complementarily.
  • the first to third half bridges are controlled so as to be energized each time.
  • control unit CPU determines the first to third half bridges (Q1, Q2), (Q3, Q4), (Q5) based on the phase of the motor M detected by the detection unit RD (information of the detection signal SRD). , Q6).
  • the control unit CPU acquires information on the rotation speed (number of rotations) of the motor M based on the detection signal SRD output from the detection unit RD.
  • control unit CPU controls the first to third half bridges (Q1, Q2), ( Q3, Q4) and (Q5, Q6).
  • control unit CPU controls the first to third half bridges (Q1, Q2), (Q3, Q4) and (Q5, Q6) are controlled.
  • the control unit CPU sets the frequency at which each high-side switch is turned on / off by PWM control to be the same as the frequency at which each low-side switch is turned on / off by PWM control.
  • FIG. 2 shows the first to third half bridges (Q1, Q2), (Q3, Q4), (Q5) when the motor M is energized by 120 degrees in the control method of the vehicle motor drive control device 100.
  • Q6 are diagrams showing an example of the operation sequence.
  • 3A and 3B are diagrams illustrating an example of a current path of the vehicle motor drive control device in stage 2 of the operation sequence illustrated in FIG. 4A and 4B are diagrams illustrating an example of a current path of the vehicle motor drive control device when switching from the stage 2 to the stage 3 in the operation sequence illustrated in FIG. 5A and 5B are diagrams illustrating an example of a current path of the vehicle motor drive control device in stage 3 of the operation sequence illustrated in FIG. 6A and 6B are diagrams illustrating an example of a current path of the vehicle motor drive control device when switching from the stage 3 to the stage 4 in the operation sequence illustrated in FIG.
  • FIG. 3A, FIG. 4A, FIG. 5A, and FIG. 6A show a state in which a switch under PWM control is on.
  • FIG. 3B, FIG. 4B, FIG. 5B, and FIG. 6B show a state where the switch under PWM control is off.
  • control unit CPU obtains information on the rotation speed (number of rotations) of the motor M based on the detection signal SRD output from the detection unit RD.
  • control unit CPU controls the first to third half bridges (Q1, Q2), ( Q3, Q4) and (Q5, Q6).
  • the control unit CPU when energizing the motor M by 120 degrees, performs PWM control on the first high-side switch Q1 and the first low-side switch Q2 in the first stage (stage 2 in FIG. 2).
  • the third high-side switch Q3 is turned off and the second low-side switch Q4 is subjected to PWM control, and the third high-side switch Q5 is turned off and the third low-side switch Q6 is turned on (FIGS. 3A and 3B).
  • the control unit CPU turns off the first high-side switch Q1 and turns off the first low-side switch Q2 in the second stage (stage 3 in FIG. 2) following the first stage. Is PWM-controlled, the second high-side switch Q3 and the second low-side switch Q4 are PWM-controlled, and the third high-side switch Q5 is turned off and the third low-side switch Q6 is turned on (FIGS. 4A and 4B).
  • the control unit CPU turns off the first high-side switch Q1 and turns off the first low-side switch Q2 in the third stage (stage 4 in FIG. 2) following the second stage. Is turned on, the second high-side switch Q3 and the second low-side switch Q4 are subjected to PWM control, the third high-side switch Q5 is turned off, and the third low-side switch Q6 is subjected to PWM control (FIGS. 6A and 6B).
  • FIG. 7 shows the first to third half bridges (Q1, Q2), (Q3, Q4), (Q5) when the motor M is energized by 180 degrees in the control method of the vehicle motor drive control device 100.
  • Q6 are diagrams showing an example of the operation sequence.
  • FIGS. 8A, 9A, 10A, and 11A show a state in which a switch under PWM control is on.
  • FIG. 8B, FIG. 9B, FIG. 10B, and FIG. 11B show a state where the switch under PWM control is off.
  • control unit CPU obtains information on the rotation speed (number of rotations) of the motor M based on the detection signal SRD output from the detection unit RD.
  • the control unit CPU causes the first to third half bridges ( Q1, Q2), (Q3, Q4), and (Q5, Q6).
  • the control unit CPU performs PWM control on the first high-side switch Q1 and the first low-side switch Q2 in the fourth stage (stage 1 in FIG. 7),
  • the third high-side switch Q3 is turned off, the second low-side switch Q4 is turned on, and the third high-side switch Q5 and the third low-side switch Q6 are PWM-controlled (FIGS. 8A and 8B).
  • the control unit CPU performs PWM control on the first high-side switch Q1 and the first low-side switch Q2 in the fifth stage (stage 2 in FIG. 7) following the fourth stage. Then, the third high-side switch Q3 is turned off and the second low-side switch Q4 is turned on, and the third high-side switch Q5 is turned off and the third low-side switch Q6 is turned on (FIGS. 9A and 9B).
  • the control unit CPU performs PWM control on the first high-side switch Q1 and the first low-side switch Q2 in the sixth stage (stage 3 in FIG. 7) following the fifth stage. Then, the third high-side switch Q3 and the second low-side switch Q4 are PWM-controlled, and the third high-side switch Q5 is turned off and the third low-side switch Q6 is turned on (FIGS. 11A and 11B).
  • the control unit CPU of the vehicle motor drive control device 100 switches between the control to turn off the high side switch and the PWM control according to the phase of the motor M, the control to turn on the low side switch, and the PWM control. Further, at the time of PWM control of the high-side switch, the low-side switch is PWM-controlled so that the high-side switch and the low-side switch are turned on / off complementarily, so that the motor is energized 120 degrees or 180 degrees.
  • the first to third half bridges Q1, Q2), (Q3, Q4), (Q5, Q6).
  • the generation of the negative current flowing to the battery B can be suppressed without increasing the cost of the device and complicating the control.
  • one end of each of the first to third high-side switches Q1, Q3, Q5 and the first to third low-side switches Q2, Q4, Q6 is a drain, and the other end is a source.
  • the MOS transistor is used has been described, another semiconductor element may be applied.
  • the first to third high-side switches Q1, Q3, Q5 and the first to third low-side switches Q2, Q4, Q6 are bipolar transistors or other semiconductor elements so that the same function can be performed. May be substituted.
  • the configuration of the other vehicle motor drive control device according to the second embodiment is the same as that of the first embodiment.
  • the motor drive control device for a vehicle converts the DC output from the battery B into three-phase AC and supplies the three-phase AC to the three-phase motor M of the vehicle. And a ground terminal BT2 to which a positive electrode of the battery B is connected, a ground terminal BT2 to which a negative electrode of the battery B is connected, and a first coil of the motor M. , A first motor terminal MT1 connected to the second coil of the motor M, a third motor terminal MT3 connected to the third coil of the motor M, a power terminal BT1 and the ground.
  • a high-side switch and a low-side switch are connected in series with the terminal BT2, and the connection points between the high-side switch and the low-side switch are first to third modules, respectively.
  • the first to third half bridges (Q1, Q2), (Q3, Q4), (Q5, Q6) connected to the data terminals MT1, MT2, MT3 and connected in parallel with each other, and drive the motor M.
  • a control unit CPU for controlling the first to third half bridges.
  • the control unit CPU switches between the control for turning off the high-side switch and the PWM control in accordance with the phase of the motor, the control for turning on the low-side switch and the PWM control, and further performs the PWM control for the high-side switch.
  • the low-side switch is PWM-controlled so that the high-side switch and the low-side switch are turned on / off complementarily, and the first to third half-bridges are energized by 120 degrees or 180 degrees to energize the motor. Control.
  • the generation of a negative current flowing to the battery can be suppressed without increasing the cost of the device and complicating the control.
  • the motor M may have the configuration of the delta connection equivalent to the circuit of the star connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)
  • Inverter Devices (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
PCT/JP2018/035020 2018-09-21 2018-09-21 車両用モータ駆動制御装置、及び、車両用モータ駆動制御装置の制御方法 WO2020059111A1 (ja)

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PCT/JP2018/035020 WO2020059111A1 (ja) 2018-09-21 2018-09-21 車両用モータ駆動制御装置、及び、車両用モータ駆動制御装置の制御方法
JP2019508274A JP6657472B1 (ja) 2018-09-21 2018-09-21 車両用モータ駆動制御装置、及び、車両用モータ駆動制御装置の制御方法

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012253991A (ja) * 2011-06-07 2012-12-20 Satoshi Hoshi モータの駆動制御プログラム、駆動制御方法及び駆動制御装置
JP2014090596A (ja) * 2012-10-30 2014-05-15 Yaskawa Electric Corp 電力変換装置
JP2016064833A (ja) * 2010-12-22 2016-04-28 マイクロスペース株式会社 モータ駆動制御装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010246210A (ja) * 2009-04-02 2010-10-28 Daikin Ind Ltd モータの駆動方法、及びモータ駆動システム、ヒートポンプシステム、ファンモータシステム
JP6545064B2 (ja) * 2015-09-30 2019-07-17 株式会社マキタ モータの制御装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016064833A (ja) * 2010-12-22 2016-04-28 マイクロスペース株式会社 モータ駆動制御装置
JP2012253991A (ja) * 2011-06-07 2012-12-20 Satoshi Hoshi モータの駆動制御プログラム、駆動制御方法及び駆動制御装置
JP2014090596A (ja) * 2012-10-30 2014-05-15 Yaskawa Electric Corp 電力変換装置

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