WO2018016090A1 - Vehicle driving apparatus, vehicle driving system, and method for controlling vehicle driving apparatus - Google Patents

Vehicle driving apparatus, vehicle driving system, and method for controlling vehicle driving apparatus Download PDF

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Publication number
WO2018016090A1
WO2018016090A1 PCT/JP2016/076718 JP2016076718W WO2018016090A1 WO 2018016090 A1 WO2018016090 A1 WO 2018016090A1 JP 2016076718 W JP2016076718 W JP 2016076718W WO 2018016090 A1 WO2018016090 A1 WO 2018016090A1
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WO
WIPO (PCT)
Prior art keywords
phase
switch
motor
power supply
supply terminal
Prior art date
Application number
PCT/JP2016/076718
Other languages
French (fr)
Japanese (ja)
Inventor
一由希 目黒
光宏 木村
和徳 本木
Original Assignee
新電元工業株式会社
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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 JP2017545764A priority Critical patent/JP6392464B2/en
Publication of WO2018016090A1 publication Critical patent/WO2018016090A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • 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
    • 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
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/02—Providing protection against overload without automatic interruption of supply
    • H02P29/032—Preventing damage to the motor, e.g. setting individual current limits for different drive conditions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

Definitions

  • the present invention relates to a vehicle drive device, a vehicle drive system, and a control method for the vehicle drive device.
  • the U-phase, V-phase, and W-phase high-side switches of the driver are turned on / off, respectively, and when the high-side switch is turned off, the U-phase, V-phase, and W-phase It is conceivable to perform PWM control on the low-side switches of the phases (FIGS. 6 and 7).
  • the low-side switch is simply PWM controlled when the high-side switch is turned off, the current flowing through the body diode of the high-side switch is large, so that the motor current is not sufficiently limited.
  • An overcurrent peak (surge) of value L2 or less occurs, and the current signal supplied to the motor does not become a sine wave (FIG. 6).
  • an object of the present invention is to provide a vehicle drive system, a vehicle drive device, and a vehicle drive device control method capable of improving the controllability when the motor is driven in reverse rotation.
  • a drive device is a vehicle drive device that drives an internal combustion engine, Connected between the first power supply terminal to which the first electrode of the battery that outputs the DC voltage is connected and the input / output terminal of the motor that drives the internal combustion engine to rotate in the forward direction by rotating forward.
  • a driver comprising: a first switch; and a second switch connected between the second power supply terminal to which the second electrode of the battery is connected and the input / output terminal of the motor;
  • a control unit for controlling the driver and the internal combustion engine, The controller is When the internal combustion engine that rotates in the forward direction is braked, the motor is rotated in the reverse direction.
  • a first control state in which the first switch is turned off and the second switch is PWM controlled is complementary to a second control state in which the first switch is PWM controlled and the second switch is turned off. The driver is controlled so as to switch automatically.
  • the motor is a three-phase motor;
  • the driver is A U-phase first switch connected between the first power supply terminal and a U-phase input / output terminal of the motor;
  • a U-phase second switch connected between the second power supply terminal and the U-phase input / output terminal;
  • a V-phase first switch connected between the first power supply terminal and a V-phase input / output terminal of the motor;
  • a V-phase second switch connected between the second power supply terminal and the V-phase input / output terminal;
  • a W-phase first switch connected between the first power supply terminal and a W-phase input / output terminal of the motor;
  • a W-phase second switch connected between the second power supply terminal and the W-phase input / output terminal;
  • the controller is The first switch of the U phase, the V phase, and the W phase, and the second switch of the U phase, the V phase, and the W phase are controlled.
  • the controller is When the motor is driven in reverse rotation, a period during which the U-phase, V-phase, and W-phase first switches and second switches are controlled to the first control state is set to the U-phase, V-phase, and W-phase. A period in which the phase of the electrical angle is controlled to be shifted by 120 ° in order, and the first switch and the second switch of the U phase, V phase, and W phase are controlled to the second control state, Control is performed so that the phase of the electrical angle is shifted by 120 ° in the order of the U phase, the V phase, and the W phase.
  • the controller is The on-duty during PWM control of the second switch is controlled to be the same as the on-duty during PWM control of the first switch.
  • the controller is The PWM control cycle of the second switch is controlled to be the same as the PWM control cycle of the first switch.
  • the vehicle drive device comprises: It is mounted on a hybrid motorcycle, the motor is connected to an internal combustion engine of the hybrid motorcycle, and the control unit drives and drives the internal combustion engine by driving the motor by the driver. .
  • the controller is The motor is driven in reverse rotation at the time of braking of the hybrid motorcycle.
  • the U-phase first switch is a first MOS transistor having a drain connected to the first power supply terminal and a source connected to the U-phase input terminal and having a first body diode.
  • the first body diode has a cathode connected to the first power supply terminal, an anode connected to the U-phase input terminal,
  • the U-phase second switch is a second MOS transistor having a source connected to the second power supply terminal and a drain connected to the U-phase input terminal and having a second body diode.
  • the second body diode has an anode connected to the second power supply terminal, a cathode connected to the U-phase input terminal
  • the V-phase first switch is a third MOS transistor having a drain connected to the first power supply terminal, a source connected to the V-phase input terminal, and a third body diode.
  • the third body diode has a cathode connected to the first power supply terminal, an anode connected to the V-phase input terminal
  • the V-phase second switch is a fourth MOS transistor having a source connected to the second power supply terminal and a drain connected to the V-phase input terminal and having a fourth body diode.
  • the fourth body diode has an anode connected to the second power supply terminal, a cathode connected to the V-phase input terminal
  • the W-phase first switch is a fifth MOS transistor having a drain connected to the first power supply terminal and a source connected to the W-phase input terminal and having a fifth body diode.
  • the fifth body diode has a cathode connected to the first power supply terminal, an anode connected to the W-phase input terminal
  • the W-phase second switch is a sixth MOS transistor having a drain connected to the second power supply terminal, a source connected to the W-phase input terminal, and a sixth body diode.
  • the sixth body diode has an anode connected to the second power supply terminal, a cathode connected to the W-phase input terminal,
  • the control unit controls the voltage between the gate and the source of the first to sixth MOS transistors constituting the driver by a gate control signal to turn on / off the first to sixth MOS transistors. It is characterized by control.
  • An overcurrent detection resistor connected between the second switch and the second power supply terminal;
  • the controller is When the detected current flowing through the overcurrent detection resistor exceeds a threshold current, the driver overcurrent is detected.
  • the current flowing through the overcurrent detection resistor exceeds the threshold current during reverse rotation driving of the motor, among the first switch and the second switch of the U phase, V phase, and W phase, Maintaining the first switch and the second switch in the first control state in the first control state, and forcing the first switch and the second switch in the second control state to Turning off the first switch and turning on the second switch;
  • the control unit When the voltage between the first power supply terminal and the second power supply terminal exceeds a preset overvoltage detection threshold voltage, the driver overvoltage is detected.
  • the first switch of the U phase, V phase, and W phase is forcibly turned off from the first and second control states.
  • the second switch of the U phase, the V phase, and the W phase is turned on.
  • the motor is It also functions as an AC generator that is driven by the internal combustion engine to generate electric power and output an AC voltage.
  • the first electrode of the battery is a positive electrode
  • the second electrode of the battery is a negative electrode
  • the first switch is a high-side switch
  • the second switch is a low-side switch. It is characterized by that.
  • the controller is At the time of forward rotation driving of the motor for normal rotation of the motor with respect to the rotation direction of the internal combustion engine, for each set of the first switch and the second switch of the U phase, V phase, and W phase A third control state in which the first switch is turned off and the second switch is PWM-controlled, and a fourth control state in which the first switch is PWM-controlled and the second switch is turned off.
  • the driver is controlled so as to be switched complementarily.
  • the controller is During normal rotation driving of the motor, the U phase, V phase, and W phase are periods during which the U phase, V phase, and W phase first switch and second switch are controlled to the third control state. A period in which the phase of the electrical angle is controlled to be shifted by 120 ° in the order of, and the first switch and the second switch of the U phase, the V phase, and the W phase are controlled to the fourth control state. The electrical angle is controlled to be shifted by 120 ° in the order of the U phase, the V phase, and the W phase.
  • a vehicle drive system includes: A vehicle drive system for driving an internal combustion engine, A motor that is connected to the internal combustion engine and rotates in the forward direction to rotate the internal combustion engine in a forward direction; A battery that outputs a DC voltage; A first switch connected between a first power supply terminal to which the first electrode of the battery is connected and an input / output terminal of the motor; and a second switch to which the second electrode of the battery is connected.
  • a driver including a second switch connected between a power supply terminal and the input / output terminal of the motor;
  • a control unit for controlling the driver and the internal combustion engine, The controller is When the internal combustion engine that rotates in the forward direction is braked, the motor is rotated in the reverse direction.
  • a first control state in which the first switch is turned off and the second switch is PWM controlled is complementary to a second control state in which the first switch is PWM controlled and the second switch is turned off. The driver is controlled so as to switch automatically.
  • a control method for a vehicle drive device includes: A vehicle drive device for driving an internal combustion engine, wherein the internal combustion engine is rotated in the forward direction by rotating forward with a first power supply terminal to which a first electrode of a battery that outputs a DC voltage is connected.
  • a first switch connected between the input and output terminals of the motor to be driven, and a connection between the second power supply terminal to which the second electrode of the battery is connected and the input and output terminals of the motor
  • a control method for a vehicle drive device comprising: a driver including a second switch, and a control unit that controls the driver and the internal combustion engine, When the internal combustion engine that rotates in the forward direction is braked, the motor is rotated in the reverse direction.
  • a first control state in which the first switch is turned off and the second switch is PWM-controlled by the control unit; and a second control in which the first switch is PWM-controlled and the second switch is turned off.
  • the driver is controlled to complementarily switch between states.
  • a vehicle drive system is a vehicle drive system that drives an internal combustion engine, and is connected to the internal combustion engine and rotates forward to drive the internal combustion engine in the forward direction.
  • first A driver H bridge circuit
  • second switch low-side switch
  • the control unit applies a first control state in which the high-side switch is turned off and the low-side switch is PWM-controlled during reverse rotation driving of the motor that reversely rotates the motor when braking the internal combustion engine that rotates in the forward direction.
  • the driver is controlled to complementarily switch between the second control state in which the side switch is PWM-controlled and the low-side switch is turned off.
  • the PWM signal supplied to the driver is controlled so that the motor current approaches a sine wave when the brake is applied by reverse rotation driving of the motor.
  • FIG. 1 is a diagram illustrating an example of a vehicle drive system 100 according to the present embodiment.
  • FIG. 2 is a diagram illustrating an example of a path of a phase current (motor current) flowing through the driver DR of the vehicle drive system 100 illustrated in FIG.
  • FIG. 3 shows an example of operation waveforms of the U-phase high-side switch and low-side switch of the driver DR and U-phase phase current (motor current) when the motor M is driven in reverse rotation in the vehicle drive system 100 shown in FIG.
  • FIG. 4 shows operation waveforms of the U-phase, V-phase, and W-phase high-side switches and low-side switches of the driver DR and the U-phase phase current when the motor M is reversely driven in the vehicle drive system 100 shown in FIG.
  • FIG. 5 shows operation waveforms and U-phase phases of the U-phase, V-phase, and W-phase high-side switches and low-side switches of the driver DR when the motor M is normally driven in the vehicle drive system 100 shown in FIG.
  • FIG. 6 is a diagram illustrating a conventional example of operation waveforms and phase currents (motor currents) of a high-side switch and a low-side switch of one phase of a driver at the time of reverse rotation driving of the motor.
  • FIG. 7 is a diagram showing a conventional example of operation waveforms and phase currents (motor currents) of the U-phase, V-phase, and W-phase high-side switches and low-side switches of the driver during reverse rotation driving of the motor.
  • FIG. 1 is a diagram illustrating an example of a vehicle drive system 100 according to the present embodiment.
  • FIG. 2 is a diagram illustrating an example of a path of a phase current (motor current) flowing through the driver DR of the vehicle drive system 100 illustrated in FIG.
  • the vehicle drive system 100 is configured to drive an internal combustion engine (engine) E (FIG. 1).
  • the vehicle drive system 100 is mounted on, for example, a hybrid motorcycle.
  • the internal combustion engine E is an internal combustion engine of a hybrid motorcycle.
  • the vehicle drive system 100 includes a battery B, a driver (H bridge circuit) DR, a control unit CON, a motor M, a capacitor C, an overcurrent detection resistor RS, Is provided.
  • the driver DR, the control unit CON, and the overcurrent detection resistor RS constitute a vehicle drive device.
  • the battery B has a positive electrode (first electrode) connected to the first power supply terminal BATP and a negative electrode (second electrode) connected to the second power supply terminal BATN.
  • the battery B can be charged by outputting a DC voltage between the first power supply terminal BATP and the second power supply terminal BATN.
  • the battery B is, for example, a lithium ion battery or a lead battery.
  • the capacitor C is connected between the first power supply terminal BATP and the second power supply terminal BATN for smoothing the voltage.
  • the motor M is connected to the internal combustion engine E and rotates the internal combustion engine E.
  • This motor M is, for example, a three-phase motor.
  • the motor M includes a U-phase coil UL connected between the U-phase input terminal TU and the midpoint TM, and a V-phase input terminal TV and the midpoint TM.
  • a stator including a V-phase coil VL connected between them, a W-phase coil WL connected between a W-phase input terminal TW and a midpoint TM, and a rotor (not shown).
  • the motor M is connected to the internal combustion engine E of the hybrid motorcycle.
  • the control unit CON drives and drives the internal combustion engine E by driving the motor M with electric power output from the battery B (assums rotation).
  • the motor M is driven to rotate the internal combustion engine E in the forward direction by rotating forward.
  • the controller CON is configured to drive the motor M in the reverse direction during braking of the above-described hybrid motorcycle.
  • this motor M can function as an alternator driven by the internal combustion engine E of the hybrid motorcycle, for example.
  • the motor M generates and outputs an AC voltage for charging the battery B and driving the load.
  • the control unit CON converts the AC voltage generated by the motor M into a DC voltage by the driver DR, and supplies the DC voltage to the battery B.
  • the motor M is driven by the internal combustion engine E to generate electric power, and also functions as an AC generator (ACG) that outputs an AC voltage.
  • ACG AC generator
  • the driver DR includes, for example, a high side switch (first switch) Q1, Q3, Q5 and a low side switch (second switch) Q2, Q4, Q6 as shown in FIG.
  • the high-side switches Q1, Q3, and Q5 are connected between the first power supply terminal BATP to which the positive electrode (first electrode) of the battery B is connected and the input terminals TU, TV, and TW of the motor M. Yes.
  • the low-side switches Q2, Q4, and Q6 are connected between the second power supply terminal BATN to which the negative electrode (second electrode) of the battery B is connected and the input terminals TU, TV, and TW of the motor M. .
  • the driver DR supplies the AC voltage obtained by converting the DC voltage output from the battery B to the input terminals TU, TV, and TW to drive the motor M.
  • the driver DR for example, as shown in FIG. 1, includes a U-phase high-side switch Q1, a U-phase low-side switch Q2, a V-phase high-side switch Q3, and a V-phase low-side switch Q4. And a W-phase high-side switch Q5 and a W-phase low-side switch Q6.
  • the U-phase high-side switch Q1 is connected between the first power supply terminal BATP and the U-phase input terminal TU of the motor M.
  • the high-side switch Q1 has a drain connected to the first power supply terminal BATP, a source connected to the U-phase input terminal TU, and a first MOS transistor (nMOS transistor) having a first body diode D1. Q1.
  • the first body diode D1 of the first MOS transistor Q1 has a cathode connected to the first power supply terminal BATP and an anode connected to the U-phase input terminal TU.
  • the U-phase low-side switch Q2 is connected between the second power supply terminal BATN and the U-phase input terminal TU.
  • the low-side switch Q2 has a source connected to the second power supply terminal BATN, a drain connected to the U-phase input terminal TU, and a second MOS transistor (nMOS transistor) Q2 having a second body diode D2. It is.
  • the second body diode D2 of the second MOS transistor Q2 has an anode connected to the second power supply terminal BATN and a cathode connected to the U-phase input terminal TU.
  • the V-phase high-side switch Q3 is connected between the first power supply terminal BATP and the V-phase input terminal TV of the motor M.
  • the high-side switch Q3 has a drain connected to the first power supply terminal BATP, a source connected to the V-phase input terminal TV, and a third body diode D3.
  • This is a third MOS transistor (nMOS transistor) Q3.
  • the third body diode D3 of the third MOS transistor Q3 has a cathode connected to the first power supply terminal BATP and an anode connected to the V-phase input terminal TV.
  • the V-phase low-side switch Q4 is connected between the second power supply terminal BATN and the V-phase input terminal TV.
  • the low-side switch Q4 includes a MOS transistor having a source connected to the second power supply terminal BATN, a drain connected to the V-phase input terminal TV, and a fourth body diode D4.
  • This is a transistor (nMOS transistor) Q4.
  • the fourth body diode D4 of the fourth MOS transistor Q4 has an anode connected to the second power supply terminal BATN and a cathode connected to the V-phase input terminal TV.
  • the W-phase high-side switch Q5 is connected between the first power supply terminal BATP and the W-phase input terminal TW of the motor M.
  • the high-side switch Q5 has a drain connected to the first power supply terminal BATP, a source connected to the W-phase input terminal TW, and a fifth body diode D5.
  • This is a fifth MOS transistor (nMOS transistor) Q5.
  • the fifth body diode D5 of the fifth MOS transistor Q5 has a cathode connected to the first power supply terminal BATP and an anode connected to the W-phase input terminal TW.
  • the W-phase low-side switch Q6 is connected between the second power supply terminal BATN and the W-phase input terminal TW.
  • the low-side switch Q6 includes a MOS transistor having a source connected to the second power supply terminal BATN and a drain connected to the W-phase input terminal TW, and a sixth body diode D6.
  • This is a transistor (nMOS transistor) Q6.
  • the sixth body diode D6 of the sixth MOS transistor Q6 has an anode connected to the second power supply terminal BATN and a cathode connected to the W-phase input terminal TW.
  • the overcurrent detection resistor RS is connected between the sources of the low-side switches Q2, Q4, and Q6 and the second power supply terminal BATN, for example, as shown in FIG.
  • control unit CON drives and / or drives the internal combustion engine E by driving the motor M by the driver DR.
  • the control unit CON drives the motor M in the reverse direction during braking of the above-described hybrid motorcycle.
  • control unit CON monitors the driver DR and the internal combustion engine E while monitoring the driver DR overvoltage and overcurrent.
  • control unit CON includes U-phase, V-phase, and W-phase high-side switches Q1, Q3, and Q5, and U-phase, V-phase, and W-phase low-side switches Q2, Q4, which constitute the driver DR. Q6 is controlled.
  • control unit CON controls the on / off of the MOS transistors by controlling the gate-source voltages of the MOS transistors Q1 to Q6 constituting the driver DR by the gate control signals SG1 to SG6. ing.
  • the control unit CON performs PWM control (or on) on the high side switch Q1 (Q3, Q5) and turns off the low side switch Q2 (Q4, Q6), and the high side switch Q1 (
  • the driver DR is controlled so as to complementarily switch between a control state in which Q3 and Q5) are turned off and the low-side switch Q2 (Q4 and Q6) is PWM-controlled (or turned on). That is, the control unit CON converts the DC voltage output from the battery B into an AC voltage under the control of the driver DR, and supplies the AC voltage (phase current)) to the motor M (see FIG. 2).
  • 3 shows the operation waveforms of the U-phase high-side switch and low-side switch of the driver DR and the U-phase phase current (motor current) when the motor M is driven in reverse rotation in the vehicle drive system 100 shown in FIG. It is a figure which shows an example.
  • 4 shows operation waveforms of the U-phase, V-phase, and W-phase high-side switches and low-side switches of the driver DR when the motor M is driven in reverse rotation in the vehicle drive system 100 shown in FIG. It is a figure which shows an example of a phase current (motor current).
  • the controller CON turns off the high-side switch and reverses the low-side switch during reverse rotation of the motor M that reverses the motor M when braking the internal combustion engine E that rotates in the forward direction.
  • the driver DR is controlled to complementarily switch between a first control state C1 in which the switch is PWM-controlled and a second control state C2 in which the high-side switch is PWM-controlled and the low-side switch is turned off.
  • FIG. 3 shows an example of operation waveforms of the U-phase high-side switch Q1 and low-side switch Q2 and U-phase phase current (motor current), but the V-phase and W-phase high-side switches Q3 and Q5 are shown. The same applies to the operation waveforms of the low-side switches Q4 and Q6 and the V-phase and W-phase currents (motor currents).
  • the controller CON controls the V-phase high during the period in which the U-phase high-side switch Q1 and the low-side switch Q2 are controlled to the first control state C1 when the motor M is driven in reverse rotation.
  • the period in which the W phase high side switch Q5 and the low side switch Q6 are controlled to the first control state C1 are the U phase, V phase, and W phase.
  • the phase of the electrical angle is controlled to be shifted by 120 °.
  • control unit CON controls the U-phase high-side switch Q1 and the low-side switch Q2 to the second control state C2, and controls the V-phase high-side switch Q3 and the low-side switch Q4 to the second control state C2.
  • W-phase high-side switch Q5 and low-side switch Q6 are controlled to be in the second control state C2, so that the electrical angle phase is shifted by 120 ° in the order of the U phase, the V phase, and the W phase. It has become.
  • the on-duty during PWM control of the U-phase, V-phase, and W-phase low-side switches Q2, Q4, Q6 is the same as the on-duty during PWM control of the high-side switches Q1, Q3, Q5. It is designed to be controlled.
  • the on-duty during PWM control of the U-phase, V-phase, and W-phase low-side switches Q2, Q4, and Q6 is different from the on-duty during PWM control of the high-side switches Q1, Q3, and Q5. You may control as follows.
  • control unit CON has a PWM control cycle of the U-phase, V-phase, and W-phase low-side switches Q2, Q4, and Q6, and the U-phase, V-phase, and W-phase high-side switches Q1, Q3, and Q5.
  • the control is performed so as to be the same as the cycle of the PWM control.
  • control unit CON is configured such that the PWM control cycle of the U-phase, V-phase, and W-phase low-side switches Q2, Q4, Q6 is the same as that of the U-phase, V-phase, and W-phase high-side switches Q1, Q3, Q5. You may control so that it may differ from the period of PWM control.
  • control unit CON controls each switch of the driver DR by switching the first control state C1 and the second control state C2 in a complementary manner, so that the motor current has an upper limit value centered on the center value LM. Since it is controlled within the range of less than L1 and lower limit L2, the motor current approaches a sine wave.
  • control unit CON detects the current (applied voltage) flowing through the above-described overcurrent detection resistor RS, and detects the overcurrent of the driver DR based on the detected current. .
  • control unit CON detects the overcurrent of the driver DR when the detected current flowing through the overcurrent detection resistor RS exceeds the threshold current (that is, determines that the overcurrent is flowing through the switch of the driver DR). )
  • the control unit CON When the current flowing through the overcurrent detection resistor exceeds the threshold current during reverse rotation driving of the motor M, the control unit CON performs high-side switches Q1, Q3, U-phase, V-phase, and W-phase, Among the Q5 and the low-side switches Q2, Q4, and Q6, the high-side switch and the low-side switch in the first control state C1 are maintained in the first control state C1, and the high-side switch and the low-side switch in the second control state C2 are maintained.
  • the high side switch is forcibly turned off and the low side switch is turned on.
  • control unit CON detects the overvoltage of the driver DR when the voltage between the first power supply terminal BATP and the second power supply terminal BATN exceeds a preset overvoltage detection threshold voltage (That is, it is determined that an overvoltage is applied to the switch of the driver DR).
  • the controller CON When the controller CON detects an overvoltage of the driver DR during the reverse rotation of the motor M, the controller CON forcibly starts from the first and second control states C1 and C2, and all the U-phase, V-phase, and The W-phase high-side switches Q1, Q3, and Q5 are turned off, and all the U-phase, V-phase, and W-phase low-side switches Q2, Q4, and Q6 are turned on.
  • FIG. 5 shows operation waveforms and U phases of the U-phase, V-phase, and W-phase high-side switches and low-side switches of the driver DR when the motor M is normally driven in the vehicle drive system 100 shown in FIG. It is a figure which shows an example of this phase current (motor current).
  • the control unit CON performs normal rotation driving of the motor M that rotates the motor M forward with respect to the rotation direction of the internal combustion engine E (when assisting the internal combustion engine E).
  • the control unit CON performs normal rotation driving of the motor M that rotates the motor M forward with respect to the rotation direction of the internal combustion engine E (when assisting the internal combustion engine E).
  • the high-side switch Q1 (Q3, Q5) is turned off and the low-side switch Q2
  • the third control state C3 in which (Q4, Q6) is PWM-controlled and the fourth control state C4 in which the high-side switch Q1 (Q3, Q5) is PWM-controlled and the low-side switch Q2 (Q4, Q6) is turned off are complementary.
  • the driver DR is controlled so as to switch to.
  • the controller CON controls the V-phase high during the period of controlling the U-phase high-side switch Q1 and the low-side switch Q2 to the third control state C3 when the motor is driven forward.
  • the period for controlling the side switch Q3 and the low side switch Q4 to the third control state C3 and the period for controlling the W side high side switch Q5 and the low side switch Q6 to the third control state C3 are the U phase, V phase, W phase.
  • the phase of the electrical angle is controlled to be shifted by 120 °.
  • control unit CON controls the U-phase high-side switch Q1 and the low-side switch Q2 to the fourth control state C4, and controls the V-phase high-side switch Q3 and the low-side switch Q4 to the fourth control state C4.
  • W-phase high-side switch Q5 and the low-side switch Q6 are controlled to be in the fourth control state C4 so that the electrical angle phase is shifted by 120 ° in the order of the U phase, the V phase, and the W phase. It has become.
  • control unit CON controls each switch of the driver DR by switching the third control state C3 and the fourth control state C4 in a complementary manner, so that the motor current has an upper limit value centered on the center value LMa. Since it is controlled to be less than L1a and in the range of the lower limit L2a, the motor current approaches a sine wave.
  • control unit CON of the vehicle drive system 100 converts the DC voltage output from the battery B into an AC voltage under the control of the driver DR, and supplies this AC voltage (phase current) to the motor M. Then, the motor M is driven.
  • the controller CON turns off the high-side switch during reverse rotation of the motor M that reverses the motor M when braking the internal combustion engine E that rotates in the forward direction.
  • the driver DR is controlled to complementarily switch between a first control state C1 in which the low-side switch is PWM-controlled and a second control state C2 in which the high-side switch is PWM-controlled and the low-side switch is turned off.
  • the control unit CON controls the U-phase high-side switch Q1 and the low-side switch Q2 to the first control state C1, and the V-phase high
  • the period in which the side switch Q3 and the low side switch Q4 are controlled to the first control state C1, and the period in which the W phase high side switch Q5 and the low side switch Q6 are controlled to the first control state C1 are the U phase, V phase, and W phase.
  • the phase of the electrical angle is controlled to be shifted by 120 °.
  • control unit CON controls the U-phase high-side switch Q1 and the low-side switch Q2 to the second control state C2, and controls the V-phase high-side switch Q3 and the low-side switch Q4 to the second control state C2.
  • W-phase high-side switch Q5 and low-side switch Q6 are controlled to be in the second control state C2, so that the electrical angle phase is shifted by 120 ° in the order of the U phase, the V phase, and the W phase. It has become.
  • control unit CON controls each switch of the driver DR by switching the first control state C1 and the second control state C2 in a complementary manner, so that the motor current has an upper limit value centered on the center value LM. Since the motor current is controlled within the range of less than L1 and the lower limit value L2, the motor current is controlled so as to approach a sine wave even when the motor M is reversely driven.
  • the PWM signal (gate control) supplied to the driver DR so that the motor current approaches a sine wave. Signal).
  • the control unit CON increases the U-phase, V-phase, and W-phase high levels.
  • the side switch and the low side switch are forced to turn off the high side switch and turn on the low side switch.
  • control part CON detects the overvoltage of driver DR at the time of reverse rotation drive of the motor M, it is forced from the 1st and 2nd control states C1 and C2, U phase, V phase, and W phase.
  • the high-side switches Q1, Q3, and Q5 are turned off, and the U-phase, V-phase, and W-phase low-side switches Q2, Q4, and Q6 are turned on.
  • the vehicle drive system is a vehicle drive system that drives an internal combustion engine, and is connected to the internal combustion engine and rotates in the forward direction by rotating forward.
  • a motor to be driven a battery connected between the first power supply terminal and the second power supply terminal, and a high side connected between the first power supply terminal and the input / output terminal of the motor
  • a driver H bridge circuit
  • a switch first switch
  • second switch low-side switch
  • a control unit for controlling the internal combustion engine.
  • the control unit applies a first control state in which the high-side switch is turned off and the low-side switch is PWM-controlled during reverse rotation driving of the motor that reversely rotates the motor when braking the internal combustion engine that rotates in the forward direction.
  • the driver is controlled to complementarily switch between the second control state in which the side switch is PWM-controlled and the low-side switch is turned off.
  • the PWM signal (gate control signal) supplied to the driver is controlled so that the motor current approaches a sine wave when the brake is applied by the reverse drive of the motor.

Abstract

A control unit of this vehicle driving apparatus controls a driver so as to complementarily switch the control state between a first control state where a first switch is turned off and a second switch is PWM-controlled and a second control state where the first switch is PWM-controlled and the second switch is turned off, during a motor reverse-driving period for reversely driving a motor when a brake is applied to an internal combustion engine rotated in a forward direction.

Description

車両用駆動装置、車両用駆動システム、および、車両用駆動装置の制御方法VEHICLE DRIVE DEVICE, VEHICLE DRIVE SYSTEM, AND CONTROL METHOD FOR VEHICLE DRIVE DEVICE
　本発明は、車両用駆動装置、車両用駆動システム、および、車両用駆動装置の制御方法に関する。 The present invention relates to a vehicle drive device, a vehicle drive system, and a control method for the vehicle drive device.
　ハイブリッド二輪車において、モータの逆転駆動でブレーキをする要求がある（例えば、特許文献１参照）。このように、モータの逆転駆動でブレーキをかける場合、モータに供給する電流も正転駆動時よりもモータ電流（相電流）が大きくなる。 In hybrid motorcycles, there is a demand for braking by reverse rotation driving of a motor (for example, see Patent Document 1). As described above, when the brake is applied by the reverse drive of the motor, the motor current (phase current) is larger than the current supplied to the motor.
特開２００４－２７４８１７号公報JP 2004-274817 A
　例えば、モータの逆転駆動でブレーキをかけるときに、ドライバのＵ相、Ｖ相、及びＷ相のハイサイドスイッチをそれぞれオン/オフし、このハイサイドスイッチのオフ時にＵ相、Ｖ相、及びＷ相のローサイドスイッチをそれぞれＰＷＭ制御することが考えられる（図６、図７）。 For example, when the brake is applied by reverse rotation driving of the motor, the U-phase, V-phase, and W-phase high-side switches of the driver are turned on / off, respectively, and when the high-side switch is turned off, the U-phase, V-phase, and W-phase It is conceivable to perform PWM control on the low-side switches of the phases (FIGS. 6 and 7).
　このハイサイドスイッチのオフ時にローサイドスイッチをＰＷＭ制御にするだけでは、ハイサイドスイッチのボディダイオードに流れる電流が大きいため、モータ電流が十分に制限されず、このモータ電流に、上限値Ｌ１以上又は下限値Ｌ２以下の過電流ピーク（サージ）が発生してしまい、モータに供給する電流信号が正弦波にならない（図６）。 If the low-side switch is simply PWM controlled when the high-side switch is turned off, the current flowing through the body diode of the high-side switch is large, so that the motor current is not sufficiently limited. An overcurrent peak (surge) of value L2 or less occurs, and the current signal supplied to the motor does not become a sine wave (FIG. 6).
　この過電流ピークは、モータの逆転駆動時はより大きくなるため、モータの逆転駆動時のモータの制御性を向上するためには無視できない問題がある。 Since this overcurrent peak becomes larger when the motor is driven in reverse rotation, there is a problem that cannot be ignored in order to improve the controllability of the motor during reverse rotation of the motor.
　そこで、本発明では、モータの逆転駆動時の制御性を向上することが可能な車両用駆動システム、車両用駆動装置、および、車両用駆動装置の制御方法を提供することを目的とする。 Therefore, an object of the present invention is to provide a vehicle drive system, a vehicle drive device, and a vehicle drive device control method capable of improving the controllability when the motor is driven in reverse rotation.
　本発明の一態様に係る実施形態に従った駆動装置は、内燃機関を駆動する車両用駆動装置であって、　　　　
　直流電圧を出力するバッテリの第１の電極が接続される第１の電源端子と正転することにより前記内燃機関を順方向に回転させるように駆動するモータの入出力端子との間に接続された第１のスイッチ、及び、前記バッテリの第２の電極が接続される第２の電源端子と前記モータの前記入出力端子との間に接続された第２のスイッチを含む、ドライバと、
　前記ドライバ及び前記内燃機関を制御する制御部と、を備え、
　前記制御部は、
　順方向に回転する前記内燃機関にブレーキをかける際に、前記モータを逆転させる前記モータの逆転駆動時には、
　前記第１のスイッチをオフし且つ前記第２のスイッチをＰＷＭ制御する第１制御状態と、前記第１のスイッチをＰＷＭ制御し且つ前記第２のスイッチをオフする第２制御状態とを、相補的に切り換えるように前記ドライバを制御する
　ことを特徴とする。 A drive device according to an embodiment of one aspect of the present invention is a vehicle drive device that drives an internal combustion engine,
Connected between the first power supply terminal to which the first electrode of the battery that outputs the DC voltage is connected and the input / output terminal of the motor that drives the internal combustion engine to rotate in the forward direction by rotating forward. A driver comprising: a first switch; and a second switch connected between the second power supply terminal to which the second electrode of the battery is connected and the input / output terminal of the motor;
A control unit for controlling the driver and the internal combustion engine,
The controller is
When the internal combustion engine that rotates in the forward direction is braked, the motor is rotated in the reverse direction.
A first control state in which the first switch is turned off and the second switch is PWM controlled is complementary to a second control state in which the first switch is PWM controlled and the second switch is turned off. The driver is controlled so as to switch automatically.
　前記駆動装置において、
　前記モータは、３相モータであり、
　前記ドライバは、
　前記第１の電源端子と前記モータのＵ相の入出力端子との間に接続されたＵ相の第１のスイッチと、
　前記第２の電源端子と前記Ｕ相の入出力端子との間に接続されたＵ相の第２のスイッチと、
　前記第１の電源端子と前記モータのＶ相の入出力端子との間に接続されたＶ相の第１のスイッチと、
　前記第２の電源端子と前記Ｖ相の入出力端子との間に接続されたＶ相の第２のスイッチと、
　前記第１の電源端子と前記モータのＷ相の入出力端子との間に接続されたＷ相の第１のスイッチと、
　前記第２の電源端子と前記Ｗ相の入出力端子との間に接続されたＷ相の第２のスイッチと、を備え、
　前記制御部は、
　前記Ｕ相、Ｖ相、及びＷ相の第１のスイッチ、及び、前記Ｕ相、Ｖ相、及びＷ相の第２のスイッチを制御する
　ことを特徴とする。 In the driving device,
The motor is a three-phase motor;
The driver is
A U-phase first switch connected between the first power supply terminal and a U-phase input / output terminal of the motor;
A U-phase second switch connected between the second power supply terminal and the U-phase input / output terminal;
A V-phase first switch connected between the first power supply terminal and a V-phase input / output terminal of the motor;
A V-phase second switch connected between the second power supply terminal and the V-phase input / output terminal;
A W-phase first switch connected between the first power supply terminal and a W-phase input / output terminal of the motor;
A W-phase second switch connected between the second power supply terminal and the W-phase input / output terminal;
The controller is
The first switch of the U phase, the V phase, and the W phase, and the second switch of the U phase, the V phase, and the W phase are controlled.
　前記駆動装置において、
　前記制御部は、
　前記モータの逆転駆動時において、前記Ｕ相、Ｖ相、及びＷ相の第１のスイッチ及び第２のスイッチを前記第１制御状態に制御する期間を、前記Ｕ相、Ｖ相、Ｗ相の順番にそれぞれ電気角の位相が１２０°ずれるように制御し、且つ、前記Ｕ相、Ｖ相、及びＷ相の第１のスイッチ及び第２のスイッチを前記第２制御状態に制御する期間を、前記Ｕ相、Ｖ相、Ｗ相の順番にそれぞれ電気角の位相が１２０°ずれるように制御する
　ことを特徴とする。 In the driving device,
The controller is
When the motor is driven in reverse rotation, a period during which the U-phase, V-phase, and W-phase first switches and second switches are controlled to the first control state is set to the U-phase, V-phase, and W-phase. A period in which the phase of the electrical angle is controlled to be shifted by 120 ° in order, and the first switch and the second switch of the U phase, V phase, and W phase are controlled to the second control state, Control is performed so that the phase of the electrical angle is shifted by 120 ° in the order of the U phase, the V phase, and the W phase.
　前記駆動装置において、
　前記制御部は、
　前記第２のスイッチのＰＷＭ制御時のオンデューティは、前記第１のスイッチのＰＷＭ制御時のオンデューティと同じになるように制御する
　ことを特徴とする。 In the driving device,
The controller is
The on-duty during PWM control of the second switch is controlled to be the same as the on-duty during PWM control of the first switch.
　前記駆動装置において、
　前記制御部は、
　前記第２のスイッチのＰＷＭ制御の周期が、前記第１のスイッチのＰＷＭ制御の周期と同じになるように制御する
　ことを特徴とする。 In the driving device,
The controller is
The PWM control cycle of the second switch is controlled to be the same as the PWM control cycle of the first switch.
　前記駆動装置において、
　前記車両用駆動装置は、
　ハイブリッド二輪車に積載され、前記モータは前記ハイブリッド二輪車の内燃機関に接続され、前記制御部は、前記ドライバにより前記モータを駆動することにより、前記内燃機関の起動及び／又は駆動する
　ことを特徴とする。 In the driving device,
The vehicle drive device comprises:
It is mounted on a hybrid motorcycle, the motor is connected to an internal combustion engine of the hybrid motorcycle, and the control unit drives and drives the internal combustion engine by driving the motor by the driver. .
　前記駆動装置において、
　前記制御部は、
　前記ハイブリッド二輪車のブレーキ時に、前記モータを逆転駆動させることを特徴とする。 In the driving device,
The controller is
The motor is driven in reverse rotation at the time of braking of the hybrid motorcycle.
　前記駆動装置において、
　前記Ｕ相の第１のスイッチは、ドレインが前記第１の電源端子に接続され且つソースが前記Ｕ相の入力端子に接続されるとともに、第１のボディダイオードを有する第１のＭＯＳトランジスタであり、
　前記第１のボディダイオードは、カソードが前記第１の電源端子に接続され、アノードが前記Ｕ相の入力端子に接続され、
　前記Ｕ相の第２のスイッチは、ソースが前記第２の電源端子に接続され且つドレインが前記Ｕ相の入力端子に接続されるとともに、第２のボディダイオードを有する第２のＭＯＳトランジスタであり、
　前記第２のボディダイオードは、アノードが前記第２の電源端子に接続され、カソードが前記Ｕ相の入力端子に接続され、
　前記Ｖ相の第１のスイッチは、ドレインが前記第１の電源端子に接続され且つソースが前記Ｖ相の入力端子に接続されるとともに、第３のボディダイオードを有する第３のＭＯＳトランジスタであり、
　前記第３のボディダイオードは、カソードが前記第１の電源端子に接続され、アノードが前記Ｖ相の入力端子に接続され、
　前記Ｖ相の第２のスイッチは、ソースが前記第２の電源端子に接続され且つドレインが前記Ｖ相の入力端子に接続されるとともに、第４のボディダイオードを有する第４のＭＯＳトランジスタであり、
　前記第４のボディダイオードは、アノードが前記第２の電源端子に接続され、カソードが前記Ｖ相の入力端子に接続され、
　前記Ｗ相の第１のスイッチは、ドレインが前記第１の電源端子に接続され且つソースが前記Ｗ相の入力端子に接続されるとともに、第５のボディダイオードを有する第５のＭＯＳトランジスタであり、
　前記第５のボディダイオードは、カソードが前記第１の電源端子に接続され、アノードが前記Ｗ相の入力端子に接続され、
　前記Ｗ相の第２のスイッチは、ドレインが前記第２の電源端子に接続され且つソースが前記Ｗ相の入力端子に接続されるとともに、第６のボディダイオードを有する第６のＭＯＳトランジスタであり、
　前記第６のボディダイオードは、アノードが前記第２の電源端子に接続され、カソードが前記Ｗ相の入力端子に接続され、
　前記制御部は、ゲート制御信号により、前記ドライバを構成する前記第１ないし第６のＭＯＳトランジスタのゲート・ソース間の電圧を制御して、前記第１ないし第６のＭＯＳトランジスタのオン／オフを制御する
　ことを特徴とする。 In the driving device,
The U-phase first switch is a first MOS transistor having a drain connected to the first power supply terminal and a source connected to the U-phase input terminal and having a first body diode. ,
The first body diode has a cathode connected to the first power supply terminal, an anode connected to the U-phase input terminal,
The U-phase second switch is a second MOS transistor having a source connected to the second power supply terminal and a drain connected to the U-phase input terminal and having a second body diode. ,
The second body diode has an anode connected to the second power supply terminal, a cathode connected to the U-phase input terminal,
The V-phase first switch is a third MOS transistor having a drain connected to the first power supply terminal, a source connected to the V-phase input terminal, and a third body diode. ,
The third body diode has a cathode connected to the first power supply terminal, an anode connected to the V-phase input terminal,
The V-phase second switch is a fourth MOS transistor having a source connected to the second power supply terminal and a drain connected to the V-phase input terminal and having a fourth body diode. ,
The fourth body diode has an anode connected to the second power supply terminal, a cathode connected to the V-phase input terminal,
The W-phase first switch is a fifth MOS transistor having a drain connected to the first power supply terminal and a source connected to the W-phase input terminal and having a fifth body diode. ,
The fifth body diode has a cathode connected to the first power supply terminal, an anode connected to the W-phase input terminal,
The W-phase second switch is a sixth MOS transistor having a drain connected to the second power supply terminal, a source connected to the W-phase input terminal, and a sixth body diode. ,
The sixth body diode has an anode connected to the second power supply terminal, a cathode connected to the W-phase input terminal,
The control unit controls the voltage between the gate and the source of the first to sixth MOS transistors constituting the driver by a gate control signal to turn on / off the first to sixth MOS transistors. It is characterized by control.
　前記駆動装置において、
　前記第２のスイッチと前記第２の電源端子との間に接続された過電流検出抵抗をさらに備え、
　前記制御部は、
　前記過電流検出抵抗に流れる検出電流が閾値電流を超えた場合に、前記ドライバの過電流を検出するものであり、
　前記モータの逆転駆動時に、前記過電流検出抵抗に流れる電流が、前記閾値電流を超えた場合には、前記Ｕ相、Ｖ相、及びＷ相の第１のスイッチ及び第２のスイッチのうち、前記第１制御状態にある第１のスイッチ及び第２のスイッチを前記第１制御状態に維持するとともに、前記第２制御状態にある第１のスイッチ及び第２のスイッチを、強制的に、前記第１のスイッチをオフし且つ前記第２のスイッチをオンする状態にし、　　　　
　また、前記制御部は、
　前記第１の電源端子と前記第２の電源端子との間の電圧が、予め設定された過電圧検出用閾値電圧を超えた場合に、前記ドライバの過電圧を検出するものであり、
　前記モータの逆転駆動時に、前記ドライバの過電圧を検出した場合には、前記第１及び第２制御状態から、強制的に、前記Ｕ相、Ｖ相、及びＷ相の第１のスイッチをオフし且つ前記Ｕ相、Ｖ相、及びＷ相の第２のスイッチをオンする
　ことを特徴とする。 In the driving device,
An overcurrent detection resistor connected between the second switch and the second power supply terminal;
The controller is
When the detected current flowing through the overcurrent detection resistor exceeds a threshold current, the driver overcurrent is detected.
When the current flowing through the overcurrent detection resistor exceeds the threshold current during reverse rotation driving of the motor, among the first switch and the second switch of the U phase, V phase, and W phase, Maintaining the first switch and the second switch in the first control state in the first control state, and forcing the first switch and the second switch in the second control state to Turning off the first switch and turning on the second switch;
In addition, the control unit
When the voltage between the first power supply terminal and the second power supply terminal exceeds a preset overvoltage detection threshold voltage, the driver overvoltage is detected.
When overvoltage of the driver is detected during reverse rotation driving of the motor, the first switch of the U phase, V phase, and W phase is forcibly turned off from the first and second control states. In addition, the second switch of the U phase, the V phase, and the W phase is turned on.
　前記駆動装置において、
　前記モータは、
　前記内燃機関により駆動されて発電し、交流電圧を出力する交流発電機としても機能することを特徴とする。 In the driving device,
The motor is
It also functions as an AC generator that is driven by the internal combustion engine to generate electric power and output an AC voltage.
　前記駆動装置において、
　前記バッテリの第１の電極は、正極であり、前記バッテリの第２の電極は、負極であり、前記第１のスイッチは、ハイサイドスイッチであり、前記第２のスイッチは、ローサイドスイッチである
　ことを特徴とする。 In the driving device,
The first electrode of the battery is a positive electrode, the second electrode of the battery is a negative electrode, the first switch is a high-side switch, and the second switch is a low-side switch. It is characterized by that.
　前記駆動装置において、
　前記制御部は、
　前記内燃機関の回転方向に対して前記モータを正転させる前記モータの正転駆動時には、前記Ｕ相、Ｖ相、及びＷ相の第１のスイッチ及び第２のスイッチのそれぞれの組に対して、前記第１のスイッチをオフし且つ前記第２のスイッチをＰＷＭ制御する第３制御状態と、前記第１のスイッチをＰＷＭ制御し且つ前記第２のスイッチをオフする第４制御状態とを、相補的に切り換えるように、前記ドライバを制御する
　ことを特徴とする。 In the driving device,
The controller is
At the time of forward rotation driving of the motor for normal rotation of the motor with respect to the rotation direction of the internal combustion engine, for each set of the first switch and the second switch of the U phase, V phase, and W phase A third control state in which the first switch is turned off and the second switch is PWM-controlled, and a fourth control state in which the first switch is PWM-controlled and the second switch is turned off. The driver is controlled so as to be switched complementarily.
　前記駆動装置において、
　前記制御部は、
　前記モータの正転駆動時において、前記Ｕ相、Ｖ相、及びＷ相の第１のスイッチ及び第２のスイッチを前記第３制御状態に制御する期間を、前記Ｕ相、Ｖ相、Ｗ相の順番にそれぞれ電気角の位相が１２０°ずれるように制御し、且つ、前記Ｕ相、Ｖ相、及びＷ相の第１のスイッチ及び第２のスイッチを前記第４制御状態に制御する期間を、前記Ｕ相、Ｖ相、Ｗ相の順番にそれぞれ電気角の位相が１２０°ずれるように制御する
　ことを特徴とする。 In the driving device,
The controller is
During normal rotation driving of the motor, the U phase, V phase, and W phase are periods during which the U phase, V phase, and W phase first switch and second switch are controlled to the third control state. A period in which the phase of the electrical angle is controlled to be shifted by 120 ° in the order of, and the first switch and the second switch of the U phase, the V phase, and the W phase are controlled to the fourth control state. The electrical angle is controlled to be shifted by 120 ° in the order of the U phase, the V phase, and the W phase.
　本発明の一態様に係る実施形態に従った車両用駆動システムは、
　内燃機関を駆動する車両用駆動システムであって、　　　
　前記内燃機関に接続され、正転することにより、前記内燃機関を順方向に回転させるように駆動するモータと、
　直流電圧を出力するバッテリと、
　前記バッテリの第１の電極が接続された第１の電源端子と前記モータの入出力端子との間に接続された第１のスイッチと、前記バッテリの第２の電極が接続された第２の電源端子と前記モータの前記入出力端子との間に接続された第２のスイッチとを含むドライバと、
　前記ドライバ及び前記内燃機関を制御する制御部と、を備え、
　前記制御部は、
　順方向に回転する前記内燃機関にブレーキをかける際に、前記モータを逆転させる前記モータの逆転駆動時には、
　前記第１のスイッチをオフし且つ前記第２のスイッチをＰＷＭ制御する第１制御状態と、前記第１のスイッチをＰＷＭ制御し且つ前記第２のスイッチをオフする第２制御状態とを、相補的に切り換えるように前記ドライバを制御する
　ことを特徴とする。 A vehicle drive system according to an embodiment of one aspect of the present invention includes:
A vehicle drive system for driving an internal combustion engine,
A motor that is connected to the internal combustion engine and rotates in the forward direction to rotate the internal combustion engine in a forward direction;
A battery that outputs a DC voltage;
A first switch connected between a first power supply terminal to which the first electrode of the battery is connected and an input / output terminal of the motor; and a second switch to which the second electrode of the battery is connected. A driver including a second switch connected between a power supply terminal and the input / output terminal of the motor;
A control unit for controlling the driver and the internal combustion engine,
The controller is
When the internal combustion engine that rotates in the forward direction is braked, the motor is rotated in the reverse direction.
A first control state in which the first switch is turned off and the second switch is PWM controlled is complementary to a second control state in which the first switch is PWM controlled and the second switch is turned off. The driver is controlled so as to switch automatically.
　本発明の一態様に係る実施形態に従った車両用駆動装置の制御方法は、
　内燃機関を駆動する車両用駆動装置であって、直流電圧を出力するバッテリの第１の電極が接続される第１の電源端子と正転することにより前記内燃機関を順方向に回転させるように駆動するモータの入出力端子との間に接続された第１のスイッチ、及び、前記バッテリの第２の電極が接続される第２の電源端子と前記モータの前記入出力端子との間に接続された第２のスイッチを含む、ドライバと、前記ドライバ及び前記内燃機関を制御する制御部と、を備えた車両用駆動装置の制御方法であって、
　順方向に回転する前記内燃機関にブレーキをかける際に、前記モータを逆転させる前記モータの逆転駆動時には、
　前記制御部により、前記第１のスイッチをオフし且つ前記第２のスイッチをＰＷＭ制御する第１制御状態と、前記第１のスイッチをＰＷＭ制御し且つ前記第２のスイッチをオフする第２制御状態とを、相補的に切り換えるように前記ドライバを制御する
　ことを特徴とする。 A control method for a vehicle drive device according to an embodiment of one aspect of the present invention includes:
A vehicle drive device for driving an internal combustion engine, wherein the internal combustion engine is rotated in the forward direction by rotating forward with a first power supply terminal to which a first electrode of a battery that outputs a DC voltage is connected. A first switch connected between the input and output terminals of the motor to be driven, and a connection between the second power supply terminal to which the second electrode of the battery is connected and the input and output terminals of the motor A control method for a vehicle drive device, comprising: a driver including a second switch, and a control unit that controls the driver and the internal combustion engine,
When the internal combustion engine that rotates in the forward direction is braked, the motor is rotated in the reverse direction.
A first control state in which the first switch is turned off and the second switch is PWM-controlled by the control unit; and a second control in which the first switch is PWM-controlled and the second switch is turned off. The driver is controlled to complementarily switch between states.
　本発明の一態様に係る車両用駆動システムは、内燃機関を駆動する車両用駆動システムであって、内燃機関に接続され、正転することにより、内燃機関を順方向に回転させるように駆動するモータと、第１の電源端子と第２の電源端子との間に接続されたバッテリと、第１の電源端子と前記モータの入出力端子との間に接続されたハイサイドスイッチ（第１のスイッチ）と、第２の電源端子と前記モータの入出力端子との間に接続されたローサイドスイッチ（第２のスイッチ）とを含むドライバ（Ｈブリッジ回路）と、ドライバ及び前記内燃機関を制御する制御部とを備える。 A vehicle drive system according to an aspect of the present invention is a vehicle drive system that drives an internal combustion engine, and is connected to the internal combustion engine and rotates forward to drive the internal combustion engine in the forward direction. A motor, a battery connected between the first power supply terminal and the second power supply terminal, and a high-side switch connected between the first power supply terminal and the input / output terminal of the motor (first A driver (H bridge circuit) including a switch), a low-side switch (second switch) connected between a second power supply terminal and the input / output terminal of the motor, and the driver and the internal combustion engine are controlled. And a control unit.
　そして、制御部は、順方向に回転する内燃機関にブレーキをかける際に、モータを逆転させるモータの逆転駆動時には、ハイサイドスイッチをオフし且つローサイドスイッチをＰＷＭ制御する第１制御状態と、ハイサイドスイッチをＰＷＭ制御し且つローサイドスイッチをオフする第２制御状態とを、相補的に切り換えるようにドライバを制御する。 The control unit applies a first control state in which the high-side switch is turned off and the low-side switch is PWM-controlled during reverse rotation driving of the motor that reversely rotates the motor when braking the internal combustion engine that rotates in the forward direction. The driver is controlled to complementarily switch between the second control state in which the side switch is PWM-controlled and the low-side switch is turned off.
　このように、本発明では、モータの逆転駆動でブレーキをかけるときに、モータ電流が正弦波に近づくように、ドライバに供給するＰＷＭ信号を制御する。 Thus, in the present invention, the PWM signal supplied to the driver is controlled so that the motor current approaches a sine wave when the brake is applied by reverse rotation driving of the motor.
　これにより、ドライバに供給するＰＷＭ波形を制御することで、簡易に、モータの逆転駆動でブレーキをかけるときの制御性を向上することができる。 Thus, by controlling the PWM waveform supplied to the driver, it is possible to easily improve the controllability when braking by reverse rotation driving of the motor.
図１は、本実施形態に係る車両用駆動システム１００の一例を示す図である。FIG. 1 is a diagram illustrating an example of a vehicle drive system 100 according to the present embodiment. 図２は、図１に示す車両用駆動システム１００のドライバＤＲに流れる相電流（モータ電流）の経路の一例を示す図である。FIG. 2 is a diagram illustrating an example of a path of a phase current (motor current) flowing through the driver DR of the vehicle drive system 100 illustrated in FIG. 図３は、図１に示す車両用駆動システム１００の、モータＭの逆転駆動時における、ドライバＤＲのＵ相のハイサイドスイッチとローサイドスイッチの動作波形とＵ相の相電流（モータ電流）の一例を示す図である。FIG. 3 shows an example of operation waveforms of the U-phase high-side switch and low-side switch of the driver DR and U-phase phase current (motor current) when the motor M is driven in reverse rotation in the vehicle drive system 100 shown in FIG. FIG. 図４は、図１に示す車両用駆動システム１００の、モータＭの逆転駆動時における、ドライバＤＲのＵ相、Ｖ相、Ｗ相のハイサイドスイッチとローサイドスイッチの動作波形とＵ相の相電流（モータ電流）の一例を示す図である。FIG. 4 shows operation waveforms of the U-phase, V-phase, and W-phase high-side switches and low-side switches of the driver DR and the U-phase phase current when the motor M is reversely driven in the vehicle drive system 100 shown in FIG. It is a figure which shows an example of (motor current). 図５は、図１に示す車両用駆動システム１００の、モータＭの正転駆動時における、ドライバＤＲのＵ相、Ｖ相、Ｗ相のハイサイドスイッチとローサイドスイッチの動作波形とＵ相の相電流（モータ電流）の一例を示す図である。FIG. 5 shows operation waveforms and U-phase phases of the U-phase, V-phase, and W-phase high-side switches and low-side switches of the driver DR when the motor M is normally driven in the vehicle drive system 100 shown in FIG. It is a figure which shows an example of an electric current (motor current). 図６は、モータの逆転駆動時における、ドライバの１つの相のハイサイドスイッチとローサイドスイッチの動作波形と相電流（モータ電流）の従来例を示す図である。FIG. 6 is a diagram illustrating a conventional example of operation waveforms and phase currents (motor currents) of a high-side switch and a low-side switch of one phase of a driver at the time of reverse rotation driving of the motor. 図７は、モータの逆転駆動時における、ドライバのＵ相、Ｖ相、Ｗ相のハイサイドスイッチとローサイドスイッチの動作波形と相電流（モータ電流）の従来例を示す図である。FIG. 7 is a diagram showing a conventional example of operation waveforms and phase currents (motor currents) of the U-phase, V-phase, and W-phase high-side switches and low-side switches of the driver during reverse rotation driving of the motor.
　以下、本発明に係る実施形態について図面に基づいて説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
第１の実施形態First embodiment
　図１は、本実施形態に係る車両用駆動システム１００の一例を示す図である。また、図２は、図１に示す車両用駆動システム１００のドライバＤＲに流れる相電流（モータ電流）の経路の一例を示す図である。 FIG. 1 is a diagram illustrating an example of a vehicle drive system 100 according to the present embodiment. FIG. 2 is a diagram illustrating an example of a path of a phase current (motor current) flowing through the driver DR of the vehicle drive system 100 illustrated in FIG.
　本実施形態に係る車両用駆動システム１００は、内燃機関（エンジン）Ｅを駆動するようになっている（図１）。 The vehicle drive system 100 according to the present embodiment is configured to drive an internal combustion engine (engine) E (FIG. 1).
　この車両用駆動システム１００は、例えば、ハイブリッド二輪車に積載されるようになっている。この場合、内燃機関Ｅは、ハイブリッド二輪車の内燃機関である。 The vehicle drive system 100 is mounted on, for example, a hybrid motorcycle. In this case, the internal combustion engine E is an internal combustion engine of a hybrid motorcycle.
　この車両用駆動システム１００は、例えば、図１に示すように、バッテリＢと、ドライバ（Ｈブリッジ回路）ＤＲと、制御部ＣＯＮと、モータＭと、キャパシタＣと、過電流検出抵抗ＲＳと、を備える。なお、ドライバＤＲ、制御部ＣＯＮ、および、過電流検出抵抗ＲＳは、車両用駆動装置を構成する。 For example, as shown in FIG. 1, the vehicle drive system 100 includes a battery B, a driver (H bridge circuit) DR, a control unit CON, a motor M, a capacitor C, an overcurrent detection resistor RS, Is provided. Note that the driver DR, the control unit CON, and the overcurrent detection resistor RS constitute a vehicle drive device.
　そして、バッテリＢは、正極（第１の電極）が第１の電源端子ＢＡＴＰに接続され、負極（第２の電極）が第２の電源端子ＢＡＴＮに接続されている。このバッテリＢは、第１の電源端子ＢＡＴＰと第２の電源端子ＢＡＴＮとの間に、直流電圧を出力し、充電可能になっている。 The battery B has a positive electrode (first electrode) connected to the first power supply terminal BATP and a negative electrode (second electrode) connected to the second power supply terminal BATN. The battery B can be charged by outputting a DC voltage between the first power supply terminal BATP and the second power supply terminal BATN.
　このバッテリＢは、例えば、リチウムイオンバッテリ、又は、鉛バッテリである。 The battery B is, for example, a lithium ion battery or a lead battery.
　また、キャパシタＣは、電圧の平滑化のために、第１の電源端子ＢＡＴＰと第２の電源端子ＢＡＴＮとの間に接続されている。 The capacitor C is connected between the first power supply terminal BATP and the second power supply terminal BATN for smoothing the voltage.
　また、モータＭは、内燃機関Ｅに接続され、内燃機関Ｅを回転させるようになっている。 The motor M is connected to the internal combustion engine E and rotates the internal combustion engine E.
　このモータＭは、例えば、３相モータである。この場合、このモータＭは、図１に示すように、Ｕ相の入力端子ＴＵと中点ＴＭとの間に接続されたＵ相コイルＵＬと、Ｖ相の入力端子ＴＶと中点ＴＭとの間に接続されたＶ相コイルＶＬと、Ｗ相の入力端子ＴＷと中点ＴＭとの間に接続されたＷ相コイルＷＬと、を含む固定子と、図示しない回転子とを備える。 This motor M is, for example, a three-phase motor. In this case, as shown in FIG. 1, the motor M includes a U-phase coil UL connected between the U-phase input terminal TU and the midpoint TM, and a V-phase input terminal TV and the midpoint TM. A stator including a V-phase coil VL connected between them, a W-phase coil WL connected between a W-phase input terminal TW and a midpoint TM, and a rotor (not shown).
　ここで、既述のように、モータＭは、該ハイブリッド二輪車の内燃機関Ｅに接続されている。そして、後述のように、制御部ＣＯＮは、バッテリＢが出力する電力で、モータＭを駆動することにより、内燃機関Ｅの起動及び／又は駆動する（回転をアシストする）ようになっている。 Here, as described above, the motor M is connected to the internal combustion engine E of the hybrid motorcycle. As will be described later, the control unit CON drives and drives the internal combustion engine E by driving the motor M with electric power output from the battery B (assums rotation).
　例えば、このモータＭは、正転することにより内燃機関Ｅを順方向に回転させるように駆動するようになっている。なお、制御部ＣＯＮは、既述のハイブリッド二輪車のブレーキ時に、モータＭを逆転駆動させるようになっている。 For example, the motor M is driven to rotate the internal combustion engine E in the forward direction by rotating forward. The controller CON is configured to drive the motor M in the reverse direction during braking of the above-described hybrid motorcycle.
　また、このモータＭは、例えば、該ハイブリッド二輪車の内燃機関Ｅにより駆動されるオルタネータとして機能することが可能になっている。この場合、このモータＭは、バッテリＢを充電するとともに負荷を駆動するための交流電圧を発生して出力する。そして、制御部ＣＯＮは、ドライバＤＲにより、モータＭが発電した当該交流電圧を直流電圧に変換し、この直流電圧を、バッテリＢに供給する。 Further, this motor M can function as an alternator driven by the internal combustion engine E of the hybrid motorcycle, for example. In this case, the motor M generates and outputs an AC voltage for charging the battery B and driving the load. Then, the control unit CON converts the AC voltage generated by the motor M into a DC voltage by the driver DR, and supplies the DC voltage to the battery B.
　このように、モータＭは、内燃機関Ｅにより駆動されて発電し、交流電圧を出力する交流発電機（ＡＣＧ）としても機能するようになっている。 Thus, the motor M is driven by the internal combustion engine E to generate electric power, and also functions as an AC generator (ACG) that outputs an AC voltage.
　また、ドライバＤＲは、例えば、図１に示すように、ハイサイドスイッチ（第１のスイッチ）Ｑ１、Ｑ３、Ｑ５と、ローサイドスイッチ（第２のスイッチ）Ｑ２、Ｑ４、Ｑ６と、を含む。 The driver DR includes, for example, a high side switch (first switch) Q1, Q3, Q5 and a low side switch (second switch) Q2, Q4, Q6 as shown in FIG.
　そして、ハイサイドスイッチＱ１、Ｑ３、Ｑ５は、バッテリＢの正極（第１の電極）が接続された第１の電源端子ＢＡＴＰとモータＭの入力端子ＴＵ、ＴＶ、ＴＷとの間に接続されている。 The high-side switches Q1, Q3, and Q5 are connected between the first power supply terminal BATP to which the positive electrode (first electrode) of the battery B is connected and the input terminals TU, TV, and TW of the motor M. Yes.
　また、ローサイドスイッチＱ２、Ｑ４、Ｑ６は、バッテリＢの負極（第２の電極）が接続された第２の電源端子ＢＡＴＮとモータＭの入力端子ＴＵ、ＴＶ、ＴＷとの間に接続されている。 The low-side switches Q2, Q4, and Q6 are connected between the second power supply terminal BATN to which the negative electrode (second electrode) of the battery B is connected and the input terminals TU, TV, and TW of the motor M. .
　このドライバＤＲは、バッテリＢが出力する直流電圧を電力変換した交流電圧を入力端子ＴＵ、ＴＶ、ＴＷに供給して、モータＭを駆動するようになっている。 The driver DR supplies the AC voltage obtained by converting the DC voltage output from the battery B to the input terminals TU, TV, and TW to drive the motor M.
　より詳細には、ドライバＤＲは、例えば、図１に示すように、Ｕ相のハイサイドスイッチＱ１と、Ｕ相のローサイドスイッチＱ２と、Ｖ相のハイサイドスイッチＱ３と、Ｖ相のローサイドスイッチＱ４と、Ｗ相のハイサイドスイッチＱ５と、Ｗ相のローサイドスイッチＱ６と、を備える。 More specifically, the driver DR, for example, as shown in FIG. 1, includes a U-phase high-side switch Q1, a U-phase low-side switch Q2, a V-phase high-side switch Q3, and a V-phase low-side switch Q4. And a W-phase high-side switch Q5 and a W-phase low-side switch Q6.
　そして、Ｕ相のハイサイドスイッチＱ１は、第１の電源端子ＢＡＴＰとモータＭのＵ相の入力端子ＴＵとの間に接続されている。 The U-phase high-side switch Q1 is connected between the first power supply terminal BATP and the U-phase input terminal TU of the motor M.
　このハイサイドスイッチＱ１は、ドレインが第１の電源端子ＢＡＴＰに接続され且つソースがＵ相の入力端子ＴＵに接続されるとともに、第１のボディダイオードＤ１を有する第１のＭＯＳトランジスタ（ｎＭＯＳトランジスタ）Ｑ１である。 The high-side switch Q1 has a drain connected to the first power supply terminal BATP, a source connected to the U-phase input terminal TU, and a first MOS transistor (nMOS transistor) having a first body diode D1. Q1.
　この第１のＭＯＳトランジスタＱ１の第１のボディダイオードＤ１は、カソードが第１の電源端子ＢＡＴＰに接続され、アノードがＵ相の入力端子ＴＵに接続されている。 The first body diode D1 of the first MOS transistor Q1 has a cathode connected to the first power supply terminal BATP and an anode connected to the U-phase input terminal TU.
　また、Ｕ相のローサイドスイッチＱ２は、第２の電源端子ＢＡＴＮとＵ相の入力端子ＴＵとの間に接続されている。 The U-phase low-side switch Q2 is connected between the second power supply terminal BATN and the U-phase input terminal TU.
　このローサイドスイッチＱ２は、ソースが第２の電源端子ＢＡＴＮに接続され且つドレインがＵ相の入力端子ＴＵに接続されるとともに、第２のボディダイオードＤ２を有する第２のＭＯＳトランジスタ（ｎＭＯＳトランジスタ）Ｑ２である。 The low-side switch Q2 has a source connected to the second power supply terminal BATN, a drain connected to the U-phase input terminal TU, and a second MOS transistor (nMOS transistor) Q2 having a second body diode D2. It is.
　この第２のＭＯＳトランジスタＱ２の第２のボディダイオードＤ２は、アノードが第２の電源端子ＢＡＴＮに接続され、カソードがＵ相の入力端子ＴＵに接続されている。 The second body diode D2 of the second MOS transistor Q2 has an anode connected to the second power supply terminal BATN and a cathode connected to the U-phase input terminal TU.
　そして、Ｖ相のハイサイドスイッチＱ３は、第１の電源端子ＢＡＴＰとモータＭのＶ相の入力端子ＴＶとの間に接続されている。 The V-phase high-side switch Q3 is connected between the first power supply terminal BATP and the V-phase input terminal TV of the motor M.
　このハイサイドスイッチＱ３は、例えば、図１に示すように、ドレインが第１の電源端子ＢＡＴＰに接続され且つソースがＶ相の入力端子ＴＶに接続されるとともに、第３のボディダイオードＤ３を有する第３のＭＯＳトランジスタ（ｎＭＯＳトランジスタ）Ｑ３である。 For example, as shown in FIG. 1, the high-side switch Q3 has a drain connected to the first power supply terminal BATP, a source connected to the V-phase input terminal TV, and a third body diode D3. This is a third MOS transistor (nMOS transistor) Q3.
　この第３のＭＯＳトランジスタＱ３の第３のボディダイオードＤ３は、カソードが第１の電源端子ＢＡＴＰに接続され、アノードがＶ相の入力端子ＴＶに接続されている。 The third body diode D3 of the third MOS transistor Q3 has a cathode connected to the first power supply terminal BATP and an anode connected to the V-phase input terminal TV.
　また、Ｖ相のローサイドスイッチＱ４は、第２の電源端子ＢＡＴＮとＶ相の入力端子ＴＶとの間に接続されている。 The V-phase low-side switch Q4 is connected between the second power supply terminal BATN and the V-phase input terminal TV.
　このローサイドスイッチＱ４は、例えば、図１に示すように、ソースが第２の電源端子ＢＡＴＮに接続され且つドレインがＶ相の入力端子ＴＶに接続されるとともに、第４のボディダイオードＤ４を有するＭＯＳトランジスタ（ｎＭＯＳトランジスタ）Ｑ４である。 For example, as shown in FIG. 1, the low-side switch Q4 includes a MOS transistor having a source connected to the second power supply terminal BATN, a drain connected to the V-phase input terminal TV, and a fourth body diode D4. This is a transistor (nMOS transistor) Q4.
　この第４のＭＯＳトランジスタＱ４の第４のボディダイオードＤ４は、アノードが第２の電源端子ＢＡＴＮに接続され、カソードがＶ相の入力端子ＴＶに接続されている。 The fourth body diode D4 of the fourth MOS transistor Q4 has an anode connected to the second power supply terminal BATN and a cathode connected to the V-phase input terminal TV.
　そして、Ｗ相のハイサイドスイッチＱ５は、第１の電源端子ＢＡＴＰとモータＭのＷ相の入力端子ＴＷとの間に接続されている。 The W-phase high-side switch Q5 is connected between the first power supply terminal BATP and the W-phase input terminal TW of the motor M.
　このハイサイドスイッチＱ５は、例えば、図１に示すように、ドレインが第１の電源端子ＢＡＴＰに接続され且つソースがＷ相の入力端子ＴＷに接続されるとともに、第５のボディダイオードＤ５を有する第５のＭＯＳトランジスタ（ｎＭＯＳトランジスタ）Ｑ５である。 For example, as shown in FIG. 1, the high-side switch Q5 has a drain connected to the first power supply terminal BATP, a source connected to the W-phase input terminal TW, and a fifth body diode D5. This is a fifth MOS transistor (nMOS transistor) Q5.
　この第５のＭＯＳトランジスタＱ５の第５のボディダイオードＤ５は、カソードが第１の電源端子ＢＡＴＰに接続され、アノードがＷ相の入力端子ＴＷに接続されている。 The fifth body diode D5 of the fifth MOS transistor Q5 has a cathode connected to the first power supply terminal BATP and an anode connected to the W-phase input terminal TW.
　また、Ｗ相のローサイドスイッチＱ６は、第２の電源端子ＢＡＴＮとＷ相の入力端子ＴＷとの間に接続されている。 The W-phase low-side switch Q6 is connected between the second power supply terminal BATN and the W-phase input terminal TW.
　このローサイドスイッチＱ６は、例えば、図１に示すように、ソースが第２の電源端子ＢＡＴＮに接続され且つドレインがＷ相の入力端子ＴＷに接続されるとともに、第６のボディダイオードＤ６を有するＭＯＳトランジスタ（ｎＭＯＳトランジスタ）Ｑ６である。 For example, as shown in FIG. 1, the low-side switch Q6 includes a MOS transistor having a source connected to the second power supply terminal BATN and a drain connected to the W-phase input terminal TW, and a sixth body diode D6. This is a transistor (nMOS transistor) Q6.
　この第６のＭＯＳトランジスタＱ６の第６のボディダイオードＤ６は、アノードが第２の電源端子ＢＡＴＮに接続され、カソードがＷ相の入力端子ＴＷに接続されている。 The sixth body diode D6 of the sixth MOS transistor Q6 has an anode connected to the second power supply terminal BATN and a cathode connected to the W-phase input terminal TW.
　また、過電流検出抵抗ＲＳは、例えば、図１に示すように、ローサイドスイッチＱ２、Ｑ４、Ｑ６のソースと第２の電源端子ＢＡＴＮとの間に接続されている。 The overcurrent detection resistor RS is connected between the sources of the low-side switches Q2, Q4, and Q6 and the second power supply terminal BATN, for example, as shown in FIG.
　また、制御部ＣＯＮは、ドライバＤＲによりモータＭを駆動することにより、内燃機関Ｅの起動及び／又は駆動するようになっている。そして、制御部ＣＯＮは、既述のハイブリッド二輪車のブレーキ時に、モータＭを逆転駆動させるようになっている。 In addition, the control unit CON drives and / or drives the internal combustion engine E by driving the motor M by the driver DR. The control unit CON drives the motor M in the reverse direction during braking of the above-described hybrid motorcycle.
　さらに、この制御部ＣＯＮは、ドライバＤＲの過電圧及び過電流を監視するとともに、ドライバＤＲ及び内燃機関Ｅを制御するようになっている。 Further, the control unit CON monitors the driver DR and the internal combustion engine E while monitoring the driver DR overvoltage and overcurrent.
　特に、制御部ＣＯＮは、ドライバＤＲを構成する、Ｕ相、Ｖ相、及びＷ相のハイサイドスイッチＱ１、Ｑ３、Ｑ５、及び、Ｕ相、Ｖ相、及びＷ相のローサイドスイッチＱ２、Ｑ４、Ｑ６を制御するようになっている。 In particular, the control unit CON includes U-phase, V-phase, and W-phase high-side switches Q1, Q3, and Q5, and U-phase, V-phase, and W-phase low-side switches Q2, Q4, which constitute the driver DR. Q6 is controlled.
　すなわち、制御部ＣＯＮは、ゲート制御信号ＳＧ１～ＳＧ６により、ドライバＤＲを構成する各ＭＯＳトランジスタＱ１～Ｑ６のゲート・ソース間の電圧を制御して、ＭＯＳトランジスタのオン／オフを制御するようになっている。 That is, the control unit CON controls the on / off of the MOS transistors by controlling the gate-source voltages of the MOS transistors Q1 to Q6 constituting the driver DR by the gate control signals SG1 to SG6. ing.
　具体的には、制御部ＣＯＮは、例えば、ハイサイドスイッチＱ１（Ｑ３、Ｑ５）をＰＷＭ制御（又はオン）し且つローサイドスイッチＱ２（Ｑ４、Ｑ６）をオフする制御状態と、ハイサイドスイッチＱ１（Ｑ３、Ｑ５）をオフし且つローサイドスイッチＱ２（Ｑ４、Ｑ６）をＰＷＭ制御（又はオン）する制御状態と、を相補的に切り換えるように、ドライバＤＲを制御するようになっている。すなわち、制御部ＣＯＮは、このドライバＤＲの制御により、バッテリＢが出力した直流電圧を交流電圧に電力変換し、この交流電圧（相電流））をモータＭに供給するようになっている（図２）。 Specifically, for example, the control unit CON performs PWM control (or on) on the high side switch Q1 (Q3, Q5) and turns off the low side switch Q2 (Q4, Q6), and the high side switch Q1 ( The driver DR is controlled so as to complementarily switch between a control state in which Q3 and Q5) are turned off and the low-side switch Q2 (Q4 and Q6) is PWM-controlled (or turned on). That is, the control unit CON converts the DC voltage output from the battery B into an AC voltage under the control of the driver DR, and supplies the AC voltage (phase current)) to the motor M (see FIG. 2).
　ここで、図３は、図１に示す車両用駆動システム１００の、モータＭの逆転駆動時における、ドライバＤＲのＵ相のハイサイドスイッチとローサイドスイッチの動作波形とＵ相の相電流（モータ電流）の一例を示す図である。また、図４は、図１に示す車両用駆動システム１００の、モータＭの逆転駆動時における、ドライバＤＲのＵ相、Ｖ相、Ｗ相のハイサイドスイッチとローサイドスイッチの動作波形とＵ相の相電流（モータ電流）の一例を示す図である。 3 shows the operation waveforms of the U-phase high-side switch and low-side switch of the driver DR and the U-phase phase current (motor current) when the motor M is driven in reverse rotation in the vehicle drive system 100 shown in FIG. It is a figure which shows an example. 4 shows operation waveforms of the U-phase, V-phase, and W-phase high-side switches and low-side switches of the driver DR when the motor M is driven in reverse rotation in the vehicle drive system 100 shown in FIG. It is a figure which shows an example of a phase current (motor current).
　例えば、図３に示すように、この制御部ＣＯＮは、順方向に回転する内燃機関Ｅにブレーキをかける際に、モータＭを逆転させるモータＭの逆転駆動時には、ハイサイドスイッチをオフし且つローサイドスイッチをＰＷＭ制御する第１制御状態Ｃ１と、ハイサイドスイッチをＰＷＭ制御し且つローサイドスイッチをオフする第２制御状態Ｃ２とを、相補的に切り換えるようにドライバＤＲを制御するようになっている。 For example, as shown in FIG. 3, the controller CON turns off the high-side switch and reverses the low-side switch during reverse rotation of the motor M that reverses the motor M when braking the internal combustion engine E that rotates in the forward direction. The driver DR is controlled to complementarily switch between a first control state C1 in which the switch is PWM-controlled and a second control state C2 in which the high-side switch is PWM-controlled and the low-side switch is turned off.
　なお、図３では、Ｕ相のハイサイドスイッチＱ１とローサイドスイッチＱ２の動作波形とＵ相の相電流（モータ電流）の一例を示しているが、Ｖ相及びＷ相のハイサイドスイッチＱ３、Ｑ５とローサイドスイッチＱ４、Ｑ６の動作波形とＶ相及びＷ相の相電流（モータ電流）も同様である。 FIG. 3 shows an example of operation waveforms of the U-phase high-side switch Q1 and low-side switch Q2 and U-phase phase current (motor current), but the V-phase and W-phase high-side switches Q3 and Q5 are shown. The same applies to the operation waveforms of the low-side switches Q4 and Q6 and the V-phase and W-phase currents (motor currents).
　すなわち、例えば、図４に示すように、制御部ＣＯＮは、モータＭの逆転駆動時において、Ｕ相のハイサイドスイッチＱ１及びローサイドスイッチＱ２を第１制御状態Ｃ１に制御する期間、Ｖ相のハイサイドスイッチＱ３及びローサイドスイッチＱ４を第１制御状態Ｃ１に制御する期間、及びＷ相のハイサイドスイッチＱ５及びローサイドスイッチＱ６を第１制御状態Ｃ１に制御する期間を、Ｕ相、Ｖ相、Ｗ相の順番にそれぞれ電気角の位相が１２０°ずれるように制御するようになっている。さらに、制御部ＣＯＮは、Ｕ相のハイサイドスイッチＱ１及びローサイドスイッチＱ２を第２制御状態Ｃ２に制御する期間、Ｖ相のハイサイドスイッチＱ３及びローサイドスイッチＱ４を第２制御状態Ｃ２に制御する期間、及びＷ相のハイサイドスイッチＱ５及びローサイドスイッチＱ６を第２制御状態Ｃ２に制御する期間を、Ｕ相、Ｖ相、Ｗ相の順番にそれぞれ電気角の位相が１２０°ずれるように制御するようになっている。 That is, for example, as shown in FIG. 4, the controller CON controls the V-phase high during the period in which the U-phase high-side switch Q1 and the low-side switch Q2 are controlled to the first control state C1 when the motor M is driven in reverse rotation. The period in which the side switch Q3 and the low side switch Q4 are controlled to the first control state C1, and the period in which the W phase high side switch Q5 and the low side switch Q6 are controlled to the first control state C1 are the U phase, V phase, and W phase. In this order, the phase of the electrical angle is controlled to be shifted by 120 °. Further, the control unit CON controls the U-phase high-side switch Q1 and the low-side switch Q2 to the second control state C2, and controls the V-phase high-side switch Q3 and the low-side switch Q4 to the second control state C2. , And the W-phase high-side switch Q5 and low-side switch Q6 are controlled to be in the second control state C2, so that the electrical angle phase is shifted by 120 ° in the order of the U phase, the V phase, and the W phase. It has become.
　特に、制御部ＣＯＮは、Ｕ相、Ｖ相、及びＷ相のローサイドスイッチＱ２、Ｑ４、Ｑ６のＰＷＭ制御時のオンデューティは、ハイサイドスイッチＱ１、Ｑ３、Ｑ５のＰＷＭ制御時のオンデューティと同じになるように制御するようになっている。 In particular, in the control unit CON, the on-duty during PWM control of the U-phase, V-phase, and W-phase low-side switches Q2, Q4, Q6 is the same as the on-duty during PWM control of the high-side switches Q1, Q3, Q5. It is designed to be controlled.
　これにより、制御部ＣＯＮによる各スイッチの制御を容易にすることができる。 Thereby, the control of each switch by the control unit CON can be facilitated.
　なお、制御部ＣＯＮは、Ｕ相、Ｖ相、及びＷ相のローサイドスイッチＱ２、Ｑ４、Ｑ６のＰＷＭ制御時のオンデューティは、ハイサイドスイッチＱ１、Ｑ３、Ｑ５のＰＷＭ制御時のオンデューティと異なるように制御してもよい。 In the control unit CON, the on-duty during PWM control of the U-phase, V-phase, and W-phase low-side switches Q2, Q4, and Q6 is different from the on-duty during PWM control of the high-side switches Q1, Q3, and Q5. You may control as follows.
　また、制御部ＣＯＮは、Ｕ相、Ｖ相、及びＷ相のローサイドスイッチＱ２、Ｑ４、Ｑ６のＰＷＭ制御の周期が、Ｕ相、Ｖ相、及びＷ相のハイサイドスイッチＱ１、Ｑ３、Ｑ５のＰＷＭ制御の周期と同じになるように制御するようになっている。 In addition, the control unit CON has a PWM control cycle of the U-phase, V-phase, and W-phase low-side switches Q2, Q4, and Q6, and the U-phase, V-phase, and W-phase high-side switches Q1, Q3, and Q5. The control is performed so as to be the same as the cycle of the PWM control.
　これにより、制御部ＣＯＮによる各スイッチの制御を容易にすることができる。 Thereby, the control of each switch by the control unit CON can be facilitated.
　なお、制御部ＣＯＮは、Ｕ相、Ｖ相、及びＷ相のローサイドスイッチＱ２、Ｑ４、Ｑ６のＰＷＭ制御の周期が、Ｕ相、Ｖ相、及びＷ相のハイサイドスイッチＱ１、Ｑ３、Ｑ５のＰＷＭ制御の周期と異なるように制御してもよい。 Note that the control unit CON is configured such that the PWM control cycle of the U-phase, V-phase, and W-phase low-side switches Q2, Q4, Q6 is the same as that of the U-phase, V-phase, and W-phase high-side switches Q1, Q3, Q5. You may control so that it may differ from the period of PWM control.
　このようにして、制御部ＣＯＮがドライバＤＲの各スイッチを第１制御状態Ｃ１と第２制御状態Ｃ２とを、相補的に切り換えて制御することにより、モータ電流が中心値ＬＭを中心として上限値Ｌ１未満且つ下限値Ｌ２の範囲に制御されるので、モータ電流が正弦波に近づくこととなる。 In this way, the control unit CON controls each switch of the driver DR by switching the first control state C1 and the second control state C2 in a complementary manner, so that the motor current has an upper limit value centered on the center value LM. Since it is controlled within the range of less than L1 and lower limit L2, the motor current approaches a sine wave.
　また、制御部ＣＯＮは、既述の過電流検出抵抗ＲＳに流れる電流（印加される電圧）を検出し、この検出した検出電流に基づいて、ドライバＤＲの過電流を検出するようになっている。 Further, the control unit CON detects the current (applied voltage) flowing through the above-described overcurrent detection resistor RS, and detects the overcurrent of the driver DR based on the detected current. .
　例えば、制御部ＣＯＮは、過電流検出抵抗ＲＳに流れる検出電流が閾値電流を超えた場合に、ドライバＤＲの過電流を検出する（すなわち、ドライバＤＲのスイッチに過電流が流れていると判断する）ようになっている。 For example, the control unit CON detects the overcurrent of the driver DR when the detected current flowing through the overcurrent detection resistor RS exceeds the threshold current (that is, determines that the overcurrent is flowing through the switch of the driver DR). )
　そして、制御部ＣＯＮは、モータＭの逆転駆動時に、過電流検出抵抗に流れる電流が、該閾値電流を超えた場合には、Ｕ相、Ｖ相、及びＷ相のハイサイドスイッチＱ１、Ｑ３、Ｑ５及びローサイドスイッチＱ２、Ｑ４、Ｑ６のうち、第１制御状態Ｃ１にあるハイサイドスイッチ及びローサイドスイッチを第１制御状態Ｃ１に維持するとともに、第２制御状態Ｃ２にあるハイサイドスイッチ及びローサイドスイッチを、強制的に、ハイサイドスイッチをオフし且つローサイドスイッチをオンする状態にするようになっている。 When the current flowing through the overcurrent detection resistor exceeds the threshold current during reverse rotation driving of the motor M, the control unit CON performs high-side switches Q1, Q3, U-phase, V-phase, and W-phase, Among the Q5 and the low-side switches Q2, Q4, and Q6, the high-side switch and the low-side switch in the first control state C1 are maintained in the first control state C1, and the high-side switch and the low-side switch in the second control state C2 are maintained. The high side switch is forcibly turned off and the low side switch is turned on.
　これにより、相電流が急激に変化しないようにして、過電流を低減することができる。 This makes it possible to reduce the overcurrent by preventing the phase current from changing suddenly.
　また、制御部ＣＯＮは、第１の電源端子ＢＡＴＰと第２の電源端子ＢＡＴＮとの間の電圧が、予め設定された過電圧検出用閾値電圧を超えた場合に、ドライバＤＲの過電圧を検出する（すなわち、ドライバＤＲのスイッチに過電圧が印加されていると判断する）ようになっている。 Further, the control unit CON detects the overvoltage of the driver DR when the voltage between the first power supply terminal BATP and the second power supply terminal BATN exceeds a preset overvoltage detection threshold voltage ( That is, it is determined that an overvoltage is applied to the switch of the driver DR).
　そして、制御部ＣＯＮは、モータＭの逆転駆動時に、ドライバＤＲの過電圧を検出した場合には、第１及び第２制御状態Ｃ１、Ｃ２から、強制的に、全てのＵ相、Ｖ相、及びＷ相のハイサイドスイッチＱ１、Ｑ３、Ｑ５をオフし且つ全てのＵ相、Ｖ相、及びＷ相のローサイドスイッチＱ２、Ｑ４、Ｑ６をオンするようになっている。 When the controller CON detects an overvoltage of the driver DR during the reverse rotation of the motor M, the controller CON forcibly starts from the first and second control states C1 and C2, and all the U-phase, V-phase, and The W-phase high-side switches Q1, Q3, and Q5 are turned off, and all the U-phase, V-phase, and W-phase low-side switches Q2, Q4, and Q6 are turned on.
　これにより、相電流が急激に変化しないようにして、過電圧を低減することができる。 This makes it possible to reduce the overvoltage by preventing the phase current from changing abruptly.
　また、図５は、図１に示す車両用駆動システム１００の、モータＭの正転駆動時における、ドライバＤＲのＵ相、Ｖ相、Ｗ相のハイサイドスイッチとローサイドスイッチの動作波形とＵ相の相電流（モータ電流）の一例を示す図である。 FIG. 5 shows operation waveforms and U phases of the U-phase, V-phase, and W-phase high-side switches and low-side switches of the driver DR when the motor M is normally driven in the vehicle drive system 100 shown in FIG. It is a figure which shows an example of this phase current (motor current).
　ここで、制御部ＣＯＮは、例えば、図５に示すように、内燃機関Ｅの回転方向に対してモータＭを正転させるモータＭの正転駆動時（内燃機関Ｅのアシスト時）には、Ｕ相、Ｖ相、及びＷ相のハイサイドスイッチＱ１、Ｑ３、Ｑ５及びローサイドスイッチＱ１、Ｑ３、Ｑ５のそれぞれの組に対して、ハイサイドスイッチＱ１（Ｑ３、Ｑ５）をオフし且つローサイドスイッチＱ２（Ｑ４、Ｑ６）をＰＷＭ制御する第３制御状態Ｃ３と、ハイサイドスイッチＱ１（Ｑ３、Ｑ５）をＰＷＭ制御し且つローサイドスイッチＱ２（Ｑ４、Ｑ６）をオフする第４制御状態Ｃ４とを相補的に切り換えるように、ドライバＤＲを制御するようになっている。 Here, for example, as shown in FIG. 5, the control unit CON performs normal rotation driving of the motor M that rotates the motor M forward with respect to the rotation direction of the internal combustion engine E (when assisting the internal combustion engine E). For each set of the U-phase, V-phase, and W-phase high-side switches Q1, Q3, Q5 and the low-side switches Q1, Q3, Q5, the high-side switch Q1 (Q3, Q5) is turned off and the low-side switch Q2 The third control state C3 in which (Q4, Q6) is PWM-controlled and the fourth control state C4 in which the high-side switch Q1 (Q3, Q5) is PWM-controlled and the low-side switch Q2 (Q4, Q6) is turned off are complementary. The driver DR is controlled so as to switch to.
　特に、制御部ＣＯＮは、例えば、図５に示すように、モータの正転駆動時において、Ｕ相のハイサイドスイッチＱ１及びローサイドスイッチＱ２を第３制御状態Ｃ３に制御する期間、Ｖ相のハイサイドスイッチＱ３及びローサイドスイッチＱ４を第３制御状態Ｃ３に制御する期間、及びＷ相のハイサイドスイッチＱ５及びローサイドスイッチＱ６を第３制御状態Ｃ３に制御する期間を、Ｕ相、Ｖ相、Ｗ相の順番にそれぞれ電気角の位相が１２０°ずれるように制御するようになっている。さらに、制御部ＣＯＮは、Ｕ相のハイサイドスイッチＱ１及びローサイドスイッチＱ２を第４制御状態Ｃ４に制御する期間、Ｖ相のハイサイドスイッチＱ３及びローサイドスイッチＱ４を第４制御状態Ｃ４に制御する期間、及びＷ相のハイサイドスイッチＱ５及びローサイドスイッチＱ６を第４制御状態Ｃ４に制御する期間を、Ｕ相、Ｖ相、Ｗ相の順番にそれぞれ電気角の位相が１２０°ずれるように制御するようになっている。 In particular, as shown in FIG. 5, for example, the controller CON controls the V-phase high during the period of controlling the U-phase high-side switch Q1 and the low-side switch Q2 to the third control state C3 when the motor is driven forward. The period for controlling the side switch Q3 and the low side switch Q4 to the third control state C3 and the period for controlling the W side high side switch Q5 and the low side switch Q6 to the third control state C3 are the U phase, V phase, W phase. In this order, the phase of the electrical angle is controlled to be shifted by 120 °. Further, the control unit CON controls the U-phase high-side switch Q1 and the low-side switch Q2 to the fourth control state C4, and controls the V-phase high-side switch Q3 and the low-side switch Q4 to the fourth control state C4. , And the W-phase high-side switch Q5 and the low-side switch Q6 are controlled to be in the fourth control state C4 so that the electrical angle phase is shifted by 120 ° in the order of the U phase, the V phase, and the W phase. It has become.
　このようにして、制御部ＣＯＮがドライバＤＲの各スイッチを第３制御状態Ｃ３と第４制御状態Ｃ４とを、相補的に切り換えて制御することにより、モータ電流が中心値ＬＭａを中心として上限値Ｌ１ａ未満且つ下限値Ｌ２ａの範囲に制御されるので、モータ電流が正弦波に近づくこととなる。 In this way, the control unit CON controls each switch of the driver DR by switching the third control state C3 and the fourth control state C4 in a complementary manner, so that the motor current has an upper limit value centered on the center value LMa. Since it is controlled to be less than L1a and in the range of the lower limit L2a, the motor current approaches a sine wave.
　次に、以上のような構成を有する車両用駆動システム１００の制御方法の一例について説明する。 Next, an example of a control method of the vehicle drive system 100 having the above configuration will be described.
　既述のように、車両用駆動システム１００の制御部ＣＯＮは、ドライバＤＲの制御により、バッテリＢが出力した直流電圧を交流電圧に電力変換し、この交流電圧（相電流）をモータＭに供給して、モータＭを駆動する。 As described above, the control unit CON of the vehicle drive system 100 converts the DC voltage output from the battery B into an AC voltage under the control of the driver DR, and supplies this AC voltage (phase current) to the motor M. Then, the motor M is driven.
　そして、制御部ＣＯＮは、例えば、図３に示すように、順方向に回転する内燃機関Ｅにブレーキをかける際に、モータＭを逆転させるモータＭの逆転駆動時には、ハイサイドスイッチをオフし且つローサイドスイッチをＰＷＭ制御する第１制御状態Ｃ１と、ハイサイドスイッチをＰＷＭ制御し且つローサイドスイッチをオフする第２制御状態Ｃ２とを、相補的に切り換えるようにドライバＤＲを制御する。 Then, for example, as shown in FIG. 3, the controller CON turns off the high-side switch during reverse rotation of the motor M that reverses the motor M when braking the internal combustion engine E that rotates in the forward direction. The driver DR is controlled to complementarily switch between a first control state C1 in which the low-side switch is PWM-controlled and a second control state C2 in which the high-side switch is PWM-controlled and the low-side switch is turned off.
　特に、例えば、図４に示すように、制御部ＣＯＮは、モータＭの逆転駆動時において、Ｕ相のハイサイドスイッチＱ１及びローサイドスイッチＱ２を第１制御状態Ｃ１に制御する期間、Ｖ相のハイサイドスイッチＱ３及びローサイドスイッチＱ４を第１制御状態Ｃ１に制御する期間、及びＷ相のハイサイドスイッチＱ５及びローサイドスイッチＱ６を第１制御状態Ｃ１に制御する期間を、Ｕ相、Ｖ相、Ｗ相の順番にそれぞれ電気角の位相が１２０°ずれるように制御するようになっている。さらに、制御部ＣＯＮは、Ｕ相のハイサイドスイッチＱ１及びローサイドスイッチＱ２を第２制御状態Ｃ２に制御する期間、Ｖ相のハイサイドスイッチＱ３及びローサイドスイッチＱ４を第２制御状態Ｃ２に制御する期間、及びＷ相のハイサイドスイッチＱ５及びローサイドスイッチＱ６を第２制御状態Ｃ２に制御する期間を、Ｕ相、Ｖ相、Ｗ相の順番にそれぞれ電気角の位相が１２０°ずれるように制御するようになっている。 In particular, for example, as shown in FIG. 4, during the reverse drive of the motor M, the control unit CON controls the U-phase high-side switch Q1 and the low-side switch Q2 to the first control state C1, and the V-phase high The period in which the side switch Q3 and the low side switch Q4 are controlled to the first control state C1, and the period in which the W phase high side switch Q5 and the low side switch Q6 are controlled to the first control state C1 are the U phase, V phase, and W phase. In this order, the phase of the electrical angle is controlled to be shifted by 120 °. Further, the control unit CON controls the U-phase high-side switch Q1 and the low-side switch Q2 to the second control state C2, and controls the V-phase high-side switch Q3 and the low-side switch Q4 to the second control state C2. , And the W-phase high-side switch Q5 and low-side switch Q6 are controlled to be in the second control state C2, so that the electrical angle phase is shifted by 120 ° in the order of the U phase, the V phase, and the W phase. It has become.
　このようにして、制御部ＣＯＮがドライバＤＲの各スイッチを第１制御状態Ｃ１と第２制御状態Ｃ２とを、相補的に切り換えて制御することにより、モータ電流が中心値ＬＭを中心として上限値Ｌ１未満且つ下限値Ｌ２の範囲に制御されるので、モータ電流はモータＭの逆転駆動時はより大きくなっても、モータ電流が正弦波に近づくように制御されることとなる。 In this way, the control unit CON controls each switch of the driver DR by switching the first control state C1 and the second control state C2 in a complementary manner, so that the motor current has an upper limit value centered on the center value LM. Since the motor current is controlled within the range of less than L1 and the lower limit value L2, the motor current is controlled so as to approach a sine wave even when the motor M is reversely driven.
　このように、車両用駆動システム１００の制御方法では、モータＭの逆転駆動で内燃機関Ｅにブレーキをかけるときに、モータ電流が正弦波に近づくように、ドライバＤＲに供給するＰＷＭ信号（ゲート制御信号）を制御する。 Thus, in the control method of the vehicle drive system 100, when the internal combustion engine E is braked by the reverse drive of the motor M, the PWM signal (gate control) supplied to the driver DR so that the motor current approaches a sine wave. Signal).
　これにより、ドライバＤＲに供給するＰＷＭ信号を制御することで、簡易に、モータＭの逆転駆動で内燃機関Ｅにブレーキをかけるときの制御性を向上することができる。 Thus, by controlling the PWM signal supplied to the driver DR, it is possible to easily improve the controllability when the internal combustion engine E is braked by the reverse drive of the motor M.
　なお、既述のように、制御部ＣＯＮは、モータＭの逆転駆動時に、過電流検出抵抗に流れる電流が、該閾値電流を超えた場合には、Ｕ相、Ｖ相、及びＷ相のハイサイドスイッチＱ１、Ｑ３、Ｑ５及びローサイドスイッチＱ２、Ｑ４、Ｑ６のうち、第１制御状態Ｃ１にあるハイサイドスイッチ及びローサイドスイッチを第１制御状態Ｃ１に維持するとともに、第２制御状態Ｃ２にあるハイサイドスイッチ及びローサイドスイッチを、強制的に、ハイサイドスイッチをオフし且つローサイドスイッチをオンする状態にする。 As described above, when the motor M rotates in the reverse direction and the current flowing through the overcurrent detection resistor exceeds the threshold current, the control unit CON increases the U-phase, V-phase, and W-phase high levels. Of the side switches Q1, Q3, Q5 and the low side switches Q2, Q4, Q6, the high side switch and the low side switch in the first control state C1 are maintained in the first control state C1, and the high in the second control state C2 The side switch and the low side switch are forced to turn off the high side switch and turn on the low side switch.
　これにより、相電流が急激に変化しないようにして、過電流を低減することができる。 This makes it possible to reduce the overcurrent by preventing the phase current from changing suddenly.
　そして、制御部ＣＯＮは、モータＭの逆転駆動時に、ドライバＤＲの過電圧を検出した場合には、第１及び第２制御状態Ｃ１、Ｃ２から、強制的に、Ｕ相、Ｖ相、及びＷ相のハイサイドスイッチＱ１、Ｑ３、Ｑ５をオフし且つＵ相、Ｖ相、及びＷ相のローサイドスイッチＱ２、Ｑ４、Ｑ６をオンする。 And when the control part CON detects the overvoltage of driver DR at the time of reverse rotation drive of the motor M, it is forced from the 1st and 2nd control states C1 and C2, U phase, V phase, and W phase. The high-side switches Q1, Q3, and Q5 are turned off, and the U-phase, V-phase, and W-phase low-side switches Q2, Q4, and Q6 are turned on.
　これにより、相電流が急激に変化しないようにして、過電圧を低減することができる。 This makes it possible to reduce the overvoltage by preventing the phase current from changing abruptly.
　以上のように、本発明の一態様に係る車両用駆動システムは、内燃機関を駆動する車両用駆動システムであって、内燃機関に接続され、正転することにより、内燃機関を順方向に回転させるように駆動するモータと、第１の電源端子と第２の電源端子との間に接続されたバッテリと、第１の電源端子と前記モータの入出力端子との間に接続されたハイサイドスイッチ（第１のスイッチ）と、第２の電源端子と前記モータの入出力端子との間に接続されたローサイドスイッチ（第２のスイッチ）とを含むドライバ（Ｈブリッジ回路）と、ドライバ及び前記内燃機関を制御する制御部と、を備える。 As described above, the vehicle drive system according to one aspect of the present invention is a vehicle drive system that drives an internal combustion engine, and is connected to the internal combustion engine and rotates in the forward direction by rotating forward. A motor to be driven, a battery connected between the first power supply terminal and the second power supply terminal, and a high side connected between the first power supply terminal and the input / output terminal of the motor A driver (H bridge circuit) including a switch (first switch), a low-side switch (second switch) connected between a second power supply terminal and an input / output terminal of the motor; A control unit for controlling the internal combustion engine.
　そして、制御部は、順方向に回転する内燃機関にブレーキをかける際に、モータを逆転させるモータの逆転駆動時には、ハイサイドスイッチをオフし且つローサイドスイッチをＰＷＭ制御する第１制御状態と、ハイサイドスイッチをＰＷＭ制御し且つローサイドスイッチをオフする第２制御状態とを、相補的に切り換えるようにドライバを制御する。 The control unit applies a first control state in which the high-side switch is turned off and the low-side switch is PWM-controlled during reverse rotation driving of the motor that reversely rotates the motor when braking the internal combustion engine that rotates in the forward direction. The driver is controlled to complementarily switch between the second control state in which the side switch is PWM-controlled and the low-side switch is turned off.
　このように、本発明では、モータの逆転駆動でブレーキをかけるときに、モータ電流が正弦波に近づくように、ドライバに供給するＰＷＭ信号（ゲート制御信号）を制御する。 As described above, in the present invention, the PWM signal (gate control signal) supplied to the driver is controlled so that the motor current approaches a sine wave when the brake is applied by the reverse drive of the motor.
　これにより、ドライバに供給するＰＷＭ信号を制御することで、簡易に、モータの逆転駆動でブレーキをかけるときの制御性を向上することができる。 Thus, by controlling the PWM signal supplied to the driver, it is possible to easily improve the controllability when braking by reverse rotation driving of the motor.
　本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれると同様に、特許請求の範囲に記載された発明とその均等の範囲に含まれるものである。 Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.
１００　車両用駆動システム
Ｂ　バッテリ
ＤＲ　ドライバ（Ｈブリッジ回路）
ＣＯＮ　制御部（駆動装置）
Ｍ　モータ
Ｃ　キャパシタ
ＲＳ　過電流検出抵抗
Ｑ１　Ｕ相のハイサイドスイッチ（第１のスイッチ）
Ｑ３　Ｖ相のハイサイドスイッチ（第１のスイッチ）
Ｑ５　Ｗ相のハイサイドスイッチ（第１のスイッチ）
Ｑ２　Ｕ相のローサイドスイッチ（第２のスイッチ）
Ｑ４　Ｖ相のローサイドスイッチ（第２のスイッチ）
Ｑ６　Ｗ相のローサイドスイッチ（第２のスイッチ）
ＢＡＴＰ　第１の電源端子
ＢＡＴＮ　第２の電源端子
Ｄ１　第１のボディダイオード　　　
Ｄ２　第２のボディダイオード
Ｄ３　第３のボディダイオード
Ｄ４　第４のボディダイオード
Ｄ５　第５のボディダイオード
Ｄ６　第６のボディダイオード
ＴＵ　Ｕ相の入力端子
ＵＬ　Ｕ相コイル
ＴＶ　Ｖ相の入力端子
ＶＬ　Ｖ相コイル
ＴＷ　Ｗ相の入力端子
ＷＬ　Ｗ相コイル
ＴＭ　中点 100 Vehicle drive system B Battery DR driver (H bridge circuit)
CON control unit (drive device)
M Motor C Capacitor RS Overcurrent detection resistor Q1 U-phase high-side switch (first switch)
Q3 V-phase high-side switch (first switch)
Q5 W-phase high-side switch (first switch)
Q2 U-phase low-side switch (second switch)
Q4 V-phase low-side switch (second switch)
Q6 W-phase low-side switch (second switch)
BATP first power terminal BATN second power terminal D1 first body diode
D2 2nd body diode D3 3rd body diode D4 4th body diode D5 5th body diode D6 6th body diode TU U-phase input terminal UL U-phase coil TV V-phase input terminal VL V-phase coil TW W-phase input terminal WL W-phase coil TM Midpoint

Claims (15)

  1. 　内燃機関を駆動する車両用駆動装置であって、　　
    　直流電圧を出力するバッテリの第１の電極が接続される第１の電源端子と正転することにより前記内燃機関を順方向に回転させるように駆動するモータの入出力端子との間に接続された第１のスイッチ、及び、前記バッテリの第２の電極が接続される第２の電源端子と前記モータの前記入出力端子との間に接続された第２のスイッチを含む、ドライバと、
    　前記ドライバ及び前記内燃機関を制御する制御部と、を備え、
    　前記制御部は、
    　順方向に回転する前記内燃機関にブレーキをかける際に、前記モータを逆転させる前記モータの逆転駆動時には、
    　前記第１のスイッチをオフし且つ前記第２のスイッチをＰＷＭ制御する第１制御状態と、前記第１のスイッチをＰＷＭ制御し且つ前記第２のスイッチをオフする第２制御状態とを、相補的に切り換えるように前記ドライバを制御する
    　ことを特徴とする車両用駆動装置。     A vehicle drive device for driving an internal combustion engine,
    Connected between the first power supply terminal to which the first electrode of the battery that outputs the DC voltage is connected and the input / output terminal of the motor that drives the internal combustion engine to rotate in the forward direction by rotating forward. A driver comprising: a first switch; and a second switch connected between the second power supply terminal to which the second electrode of the battery is connected and the input / output terminal of the motor;
    A control unit for controlling the driver and the internal combustion engine,
    The controller is
    When the internal combustion engine that rotates in the forward direction is braked, the motor is rotated in the reverse direction.
    A first control state in which the first switch is turned off and the second switch is PWM controlled is complementary to a second control state in which the first switch is PWM controlled and the second switch is turned off. The vehicle drive device, wherein the driver is controlled so as to be switched.
  2. 　前記モータは、３相モータであり、
    　前記ドライバは、
    　前記第１の電源端子と前記モータのＵ相の入出力端子との間に接続されたＵ相の第１のスイッチと、
    　前記第２の電源端子と前記Ｕ相の入出力端子との間に接続されたＵ相の第２のスイッチと、
    　前記第１の電源端子と前記モータのＶ相の入出力端子との間に接続されたＶ相の第１のスイッチと、
    　前記第２の電源端子と前記Ｖ相の入出力端子との間に接続されたＶ相の第２のスイッチと、
    　前記第１の電源端子と前記モータのＷ相の入出力端子との間に接続されたＷ相の第１のスイッチと、
    　前記第２の電源端子と前記Ｗ相の入出力端子との間に接続されたＷ相の第２のスイッチと、を備え、
    　前記制御部は、
    　前記Ｕ相、Ｖ相、及びＷ相の第１のスイッチ、及び、前記Ｕ相、Ｖ相、及びＷ相の第２のスイッチを制御する
    　ことを特徴とする請求項１に記載の車両用駆動装置。     The motor is a three-phase motor;
    The driver is
    A U-phase first switch connected between the first power supply terminal and a U-phase input / output terminal of the motor;
    A U-phase second switch connected between the second power supply terminal and the U-phase input / output terminal;
    A V-phase first switch connected between the first power supply terminal and a V-phase input / output terminal of the motor;
    A V-phase second switch connected between the second power supply terminal and the V-phase input / output terminal;
    A W-phase first switch connected between the first power supply terminal and a W-phase input / output terminal of the motor;
    A W-phase second switch connected between the second power supply terminal and the W-phase input / output terminal;
    The controller is
    2. The vehicle drive according to claim 1, wherein the first switch for the U phase, the V phase, and the W phase, and the second switch for the U phase, the V phase, and the W phase are controlled. apparatus.
  3. 　前記制御部は、
    　前記モータの逆転駆動時において、前記Ｕ相、Ｖ相、及びＷ相の第１のスイッチ及び第２のスイッチを前記第１制御状態に制御する期間を、前記Ｕ相、Ｖ相、Ｗ相の順番にそれぞれ電気角の位相が１２０°ずれるように制御し、且つ、前記Ｕ相、Ｖ相、及びＷ相の第１のスイッチ及び第２のスイッチを前記第２制御状態に制御する期間を、前記Ｕ相、Ｖ相、Ｗ相の順番にそれぞれ電気角の位相が１２０°ずれるように制御する
    　ことを特徴とする請求項２に記載の車両用駆動装置。     The controller is
    When the motor is driven in reverse rotation, a period during which the U-phase, V-phase, and W-phase first switches and second switches are controlled to the first control state is set to the U-phase, V-phase, and W-phase. A period in which the phase of the electrical angle is controlled to be shifted by 120 ° in order, and the first switch and the second switch of the U phase, V phase, and W phase are controlled to the second control state, 3. The vehicle drive device according to claim 2, wherein the electrical angle is controlled to be shifted by 120 ° in the order of the U phase, the V phase, and the W phase. 4.
  4. 　前記制御部は、
    　前記第２のスイッチのＰＷＭ制御時のオンデューティは、前記第１のスイッチのＰＷＭ制御時のオンデューティと同じになるように制御する
    　ことを特徴とする請求項３に記載の車両用駆動装置。     The controller is
    4. The vehicle drive device according to claim 3, wherein the on-duty during PWM control of the second switch is controlled to be the same as the on-duty during PWM control of the first switch. 5.
  5. 　前記制御部は、
    　前記第２のスイッチのＰＷＭ制御の周期が、前記第１のスイッチのＰＷＭ制御の周期と同じになるように制御する
    　ことを特徴とする請求項４に記載の車両用駆動装置。     The controller is
    The vehicle drive device according to claim 4, wherein the PWM control cycle of the second switch is controlled to be the same as the PWM control cycle of the first switch.
  6. 　前記車両用駆動装置は、
    　ハイブリッド二輪車に積載され、前記モータは前記ハイブリッド二輪車の内燃機関に接続され、前記制御部は、前記ドライバにより前記モータを駆動することにより、前記内燃機関の起動及び／又は駆動する
    　ことを特徴とする請求項３に記載の車両用駆動装置。     The vehicle drive device comprises:
    It is mounted on a hybrid motorcycle, the motor is connected to an internal combustion engine of the hybrid motorcycle, and the control unit drives and drives the internal combustion engine by driving the motor by the driver. The vehicle drive device according to claim 3.
  7. 　前記制御部は、
    　前記ハイブリッド二輪車のブレーキ時に、前記モータを逆転駆動させることを特徴とする請求項６に記載の車両用駆動装置。     The controller is
    The vehicle drive device according to claim 6, wherein the motor is reversely driven during braking of the hybrid motorcycle.
  8. 　前記Ｕ相の第１のスイッチは、ドレインが前記第１の電源端子に接続され且つソースが前記Ｕ相の入力端子に接続されるとともに、第１のボディダイオードを有する第１のＭＯＳトランジスタであり、
    　前記第１のボディダイオードは、カソードが前記第１の電源端子に接続され、アノードが前記Ｕ相の入力端子に接続され、
    　前記Ｕ相の第２のスイッチは、ソースが前記第２の電源端子に接続され且つドレインが前記Ｕ相の入力端子に接続されるとともに、第２のボディダイオードを有する第２のＭＯＳトランジスタであり、
    　前記第２のボディダイオードは、アノードが前記第２の電源端子に接続され、カソードが前記Ｕ相の入力端子に接続され、
    　前記Ｖ相の第１のスイッチは、ドレインが前記第１の電源端子に接続され且つソースが前記Ｖ相の入力端子に接続されるとともに、第３のボディダイオードを有する第３のＭＯＳトランジスタであり、
    　前記第３のボディダイオードは、カソードが前記第１の電源端子に接続され、アノードが前記Ｖ相の入力端子に接続され、
    　前記Ｖ相の第２のスイッチは、ソースが前記第２の電源端子に接続され且つドレインが前記Ｖ相の入力端子に接続されるとともに、第４のボディダイオードを有する第４のＭＯＳトランジスタであり、
    　前記第４のボディダイオードは、アノードが前記第２の電源端子に接続され、カソードが前記Ｖ相の入力端子に接続され、
    　前記Ｗ相の第１のスイッチは、ドレインが前記第１の電源端子に接続され且つソースが前記Ｗ相の入力端子に接続されるとともに、第５のボディダイオードを有する第５のＭＯＳトランジスタであり、
    　前記第５のボディダイオードは、カソードが前記第１の電源端子に接続され、アノードが前記Ｗ相の入力端子に接続され、
    　前記Ｗ相の第２のスイッチは、ドレインが前記第２の電源端子に接続され且つソースが前記Ｗ相の入力端子に接続されるとともに、第６のボディダイオードを有する第６のＭＯＳトランジスタであり、
    　前記第６のボディダイオードは、アノードが前記第２の電源端子に接続され、カソードが前記Ｗ相の入力端子に接続され、
    　前記制御部は、ゲート制御信号により、前記ドライバを構成する前記第１ないし第６のＭＯＳトランジスタのゲート・ソース間の電圧を制御して、前記第１ないし第６のＭＯＳトランジスタのオン／オフを制御する
    　ことを特徴とする請求項７に記載の車両用駆動装置。     The U-phase first switch is a first MOS transistor having a drain connected to the first power supply terminal and a source connected to the U-phase input terminal and having a first body diode. ,
    The first body diode has a cathode connected to the first power supply terminal, an anode connected to the U-phase input terminal,
    The U-phase second switch is a second MOS transistor having a source connected to the second power supply terminal and a drain connected to the U-phase input terminal and having a second body diode. ,
    The second body diode has an anode connected to the second power supply terminal, a cathode connected to the U-phase input terminal,
    The V-phase first switch is a third MOS transistor having a drain connected to the first power supply terminal, a source connected to the V-phase input terminal, and a third body diode. ,
    The third body diode has a cathode connected to the first power supply terminal, an anode connected to the V-phase input terminal,
    The V-phase second switch is a fourth MOS transistor having a source connected to the second power supply terminal and a drain connected to the V-phase input terminal and having a fourth body diode. ,
    The fourth body diode has an anode connected to the second power supply terminal, a cathode connected to the V-phase input terminal,
    The W-phase first switch is a fifth MOS transistor having a drain connected to the first power supply terminal and a source connected to the W-phase input terminal and having a fifth body diode. ,
    The fifth body diode has a cathode connected to the first power supply terminal, an anode connected to the W-phase input terminal,
    The W-phase second switch is a sixth MOS transistor having a drain connected to the second power supply terminal, a source connected to the W-phase input terminal, and a sixth body diode. ,
    The sixth body diode has an anode connected to the second power supply terminal, a cathode connected to the W-phase input terminal,
    The control unit controls the voltage between the gate and the source of the first to sixth MOS transistors constituting the driver by a gate control signal to turn on / off the first to sixth MOS transistors. It controls. The vehicle drive device of Claim 7 characterized by the above-mentioned.
  9. 　前記第２のスイッチと前記第２の電源端子との間に接続された過電流検出抵抗をさらに備え、
    　前記制御部は、
    　前記過電流検出抵抗に流れる検出電流が閾値電流を超えた場合に、前記ドライバの過電流を検出するものであり、
    　前記モータの逆転駆動時に、前記過電流検出抵抗に流れる電流が、前記閾値電流を超えた場合には、前記Ｕ相、Ｖ相、及びＷ相の第１のスイッチ及び第２のスイッチのうち、前記第１制御状態にある第１のスイッチ及び第２のスイッチを前記第１制御状態に維持するとともに、前記第２制御状態にある第１のスイッチ及び第２のスイッチを、強制的に、前記第１のスイッチをオフし且つ前記第２のスイッチをオンする状態にし、　　　　
    　また、前記制御部は、
    　前記第１の電源端子と前記第２の電源端子との間の電圧が、予め設定された過電圧検出用閾値電圧を超えた場合に、前記ドライバの過電圧を検出するものであり、
    　前記モータの逆転駆動時に、前記ドライバの過電圧を検出した場合には、前記第１及び第２制御状態から、強制的に、前記Ｕ相、Ｖ相、及びＷ相の第１のスイッチをオフし且つ前記Ｕ相、Ｖ相、及びＷ相の第２のスイッチをオンする
    　ことを特徴とする請求項８に記載の車両用駆動装置。     An overcurrent detection resistor connected between the second switch and the second power supply terminal;
    The controller is
    When the detected current flowing through the overcurrent detection resistor exceeds a threshold current, the driver overcurrent is detected.
    When the current flowing through the overcurrent detection resistor exceeds the threshold current during reverse rotation driving of the motor, among the first switch and the second switch of the U phase, V phase, and W phase, Maintaining the first switch and the second switch in the first control state in the first control state, and forcing the first switch and the second switch in the second control state to Turning off the first switch and turning on the second switch;
    In addition, the control unit
    When the voltage between the first power supply terminal and the second power supply terminal exceeds a preset overvoltage detection threshold voltage, the driver overvoltage is detected.
    When overvoltage of the driver is detected during reverse rotation driving of the motor, the first switch of the U phase, V phase, and W phase is forcibly turned off from the first and second control states. The vehicle drive device according to claim 8, wherein the second switch for the U phase, the V phase, and the W phase is turned on.
  10. 　前記モータは、
    　前記内燃機関により駆動されて発電し、交流電圧を出力する交流発電機としても機能することを特徴とする請求項４に記載の車両用駆動装置。     The motor is
    5. The vehicle drive device according to claim 4, wherein the vehicle drive device also functions as an AC generator that is driven by the internal combustion engine to generate electric power and output an AC voltage. 6.
  11. 　前記バッテリの第１の電極は、正極であり、前記バッテリの第２の電極は、負極であり、前記第１のスイッチは、ハイサイドスイッチであり、前記第２のスイッチは、ローサイドスイッチである
    　ことを特徴とする請求項４に記載の車両用駆動装置。     The first electrode of the battery is a positive electrode, the second electrode of the battery is a negative electrode, the first switch is a high-side switch, and the second switch is a low-side switch. The vehicle drive device according to claim 4.
  12. 　前記制御部は、
    　前記内燃機関の回転方向に対して前記モータを正転させる前記モータの正転駆動時には、前記Ｕ相、Ｖ相、及びＷ相の第１のスイッチ及び第２のスイッチのそれぞれの組に対して、前記第１のスイッチをオフし且つ前記第２のスイッチをＰＷＭ制御する第３制御状態と、前記第１のスイッチをＰＷＭ制御し且つ前記第２のスイッチをオフする第４制御状態とを、相補的に切り換えるように、前記ドライバを制御する
    　ことを特徴とする請求項１１に記載の車両用駆動装置。     The controller is
    At the time of forward rotation driving of the motor for normal rotation of the motor with respect to the rotation direction of the internal combustion engine, for each set of the first switch and the second switch of the U phase, V phase, and W phase A third control state in which the first switch is turned off and the second switch is PWM-controlled, and a fourth control state in which the first switch is PWM-controlled and the second switch is turned off. The vehicle drive device according to claim 11, wherein the driver is controlled so as to be switched complementarily.
  13. 　前記制御部は、
    　前記モータの正転駆動時において、前記Ｕ相、Ｖ相、及びＷ相の第１のスイッチ及び第２のスイッチを前記第３制御状態に制御する期間を、前記Ｕ相、Ｖ相、Ｗ相の順番にそれぞれ電気角の位相が１２０°ずれるように制御し、且つ、前記Ｕ相、Ｖ相、及びＷ相の第１のスイッチ及び第２のスイッチを前記第４制御状態に制御する期間を、前記Ｕ相、Ｖ相、Ｗ相の順番にそれぞれ電気角の位相が１２０°ずれるように制御する
    　ことを特徴とする請求項１２に記載の車両用駆動装置。     The controller is
    During normal rotation driving of the motor, the U phase, V phase, and W phase are periods during which the U phase, V phase, and W phase first switch and second switch are controlled to the third control state. A period in which the phase of the electrical angle is controlled to be shifted by 120 ° in the order of, and the first switch and the second switch of the U phase, the V phase, and the W phase are controlled to the fourth control state. The vehicle drive device according to claim 12, wherein the electrical angle is controlled to be shifted by 120 ° in the order of the U phase, the V phase, and the W phase.
  14. 　内燃機関を駆動する車両用駆動システムであって、　　　
    　前記内燃機関に接続され、正転することにより、前記内燃機関を順方向に回転させるように駆動するモータと、
    　直流電圧を出力するバッテリと、
    　前記バッテリの第１の電極が接続された第１の電源端子と前記モータの入出力端子との間に接続された第１のスイッチと、前記バッテリの第２の電極が接続された第２の電源端子と前記モータの前記入出力端子との間に接続された第２のスイッチとを含むドライバと、
    　前記ドライバ及び前記内燃機関を制御する制御部と、を備え、
    　前記制御部は、
    　順方向に回転する前記内燃機関にブレーキをかける際に、前記モータを逆転させる前記モータの逆転駆動時には、
    　前記第１のスイッチをオフし且つ前記第２のスイッチをＰＷＭ制御する第１制御状態と、前記第１のスイッチをＰＷＭ制御し且つ前記第２のスイッチをオフする第２制御状態とを、相補的に切り換えるように前記ドライバを制御する
    　ことを特徴とする車両用駆動システム。     A vehicle drive system for driving an internal combustion engine,
    A motor that is connected to the internal combustion engine and rotates in the forward direction to rotate the internal combustion engine in a forward direction;
    A battery that outputs a DC voltage;
    A first switch connected between a first power supply terminal to which the first electrode of the battery is connected and an input / output terminal of the motor; and a second switch to which the second electrode of the battery is connected. A driver including a second switch connected between a power supply terminal and the input / output terminal of the motor;
    A control unit for controlling the driver and the internal combustion engine,
    The controller is
    When the internal combustion engine that rotates in the forward direction is braked, the motor is rotated in the reverse direction.
    A first control state in which the first switch is turned off and the second switch is PWM controlled is complementary to a second control state in which the first switch is PWM controlled and the second switch is turned off. The vehicle drive system, wherein the driver is controlled so as to be switched.
  15. 　内燃機関を駆動する車両用駆動装置であって、直流電圧を出力するバッテリの第１の電極が接続される第１の電源端子と正転することにより前記内燃機関を順方向に回転させるように駆動するモータの入出力端子との間に接続された第１のスイッチ、及び、前記バッテリの第２の電極が接続される第２の電源端子と前記モータの前記入出力端子との間に接続された第２のスイッチを含む、ドライバと、前記ドライバ及び前記内燃機関を制御する制御部と、を備えた車両用駆動装置の制御方法であって、
    　順方向に回転する前記内燃機関にブレーキをかける際に、前記モータを逆転させる前記モータの逆転駆動時には、
    　前記制御部により、前記第１のスイッチをオフし且つ前記第２のスイッチをＰＷＭ制御する第１制御状態と、前記第１のスイッチをＰＷＭ制御し且つ前記第２のスイッチをオフする第２制御状態とを、相補的に切り換えるように前記ドライバを制御する
    　ことを特徴とする車両用駆動装置の制御方法。     A vehicle drive device for driving an internal combustion engine, wherein the internal combustion engine is rotated in the forward direction by rotating forward with a first power supply terminal to which a first electrode of a battery that outputs a DC voltage is connected. A first switch connected between the input and output terminals of the motor to be driven, and a connection between the second power supply terminal to which the second electrode of the battery is connected and the input and output terminals of the motor A control method for a vehicle drive device, comprising: a driver including a second switch, and a control unit that controls the driver and the internal combustion engine,
    When the internal combustion engine that rotates in the forward direction is braked, the motor is rotated in the reverse direction.
    A first control state in which the first switch is turned off and the second switch is PWM-controlled by the control unit; and a second control in which the first switch is PWM-controlled and the second switch is turned off. A control method for a vehicle drive device, characterized in that the driver is controlled to switch between states in a complementary manner.
PCT/JP2016/076718 2016-07-22 2016-09-09 Vehicle driving apparatus, vehicle driving system, and method for controlling vehicle driving apparatus WO2018016090A1 (en)

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