WO2018139204A1 - Dispositif de commande pour machine électrique rotative - Google Patents

Dispositif de commande pour machine électrique rotative Download PDF

Info

Publication number
WO2018139204A1
WO2018139204A1 PCT/JP2018/000453 JP2018000453W WO2018139204A1 WO 2018139204 A1 WO2018139204 A1 WO 2018139204A1 JP 2018000453 W JP2018000453 W JP 2018000453W WO 2018139204 A1 WO2018139204 A1 WO 2018139204A1
Authority
WO
WIPO (PCT)
Prior art keywords
switching element
field
current
electrical machine
rotating electrical
Prior art date
Application number
PCT/JP2018/000453
Other languages
English (en)
Japanese (ja)
Inventor
猪熊　賢二
拓人 鈴木
Original Assignee
株式会社デンソー
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Publication of WO2018139204A1 publication Critical patent/WO2018139204A1/fr

Links

Images

Classifications

    • 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
    • H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
    • H02P29/0241—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the fault being an overvoltage
    • 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
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
    • H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
    • H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices

Definitions

  • This disclosure relates to a rotating electrical machine control device.
  • a wound field type rotating electrical machine in a field circuit, a pair of switching elements are provided in series between a power supply unit and a ground, and the field winding is obtained by alternately turning on and off the pair of switching elements. A field current flows through. In this case, if any abnormality occurs in the field circuit, the rotating electric machine cannot properly generate a magnetic field, and there is a concern that the driving of the rotating electric machine may be adversely affected.
  • Patent Document 1 as a technique for determining a wear state of a brush, a brush that determines a brush wear state based on a current value flowing through a field winding of a generator via a brush or an output voltage value of the generator.
  • a technique including a wear determination circuit is disclosed. According to the technology, it is not necessary to install a detection element for detecting the brush wear limit near the brush, and it is possible to provide an apparatus with excellent productivity and reliability.
  • the present disclosure has been made in view of the above problems, and a main object thereof is to provide a control device for a rotating electrical machine capable of properly grasping the abnormality of the rotating electrical machine and thereby appropriately driving the rotating electrical machine. It is in.
  • a rotating electrical machine unit including a rotating electrical machine having an armature winding and a field winding, and a field circuit that has a plurality of switching elements and energizes the field winding in accordance with on / off of the switching elements.
  • a rotating electrical machine control device The field circuit includes, as the plurality of switching elements, a first switching element and a second switching element that are connected in series between a power supply unit and a ground.
  • the field winding is provided in a parallel path portion connected to both ends of the second switching element and in parallel with the second switching element, and each of the switching elements is turned on in a contradictory period by a duty signal, respectively.
  • An acquisition unit that acquires a current detection value for an energization current flowing through the field circuit;
  • An abnormality diagnosis unit that performs abnormality diagnosis of the field circuit based on the duty signal and the current detection value;
  • a fail-safe processing unit that performs a predetermined fail-safe process when an abnormality occurrence is diagnosed by the abnormality diagnosis unit; Is provided.
  • the field circuit abnormality diagnosis is appropriately performed based on the duty signal and the current detection value, and the fail-safe process is appropriately performed based on the result of the abnormality diagnosis.
  • the abnormality diagnosis of the field circuit can be properly performed. As a result, it is possible to properly grasp the abnormality of the rotating electrical machine and thereby drive the rotating electrical machine appropriately.
  • the second means is a rotating electrical machine control device that calculates a duty ratio of the duty signal based on a target energization current and the detected current value, wherein the abnormality diagnosis unit corresponds to the duty ratio and the duty ratio.
  • the abnormality diagnosis unit corresponds to the duty ratio and the duty ratio.
  • the path resistance of the field circuit may increase unintentionally.
  • the field circuit abnormality diagnosis is preferably performed based on the correlation deviation. Can be implemented.
  • a third means is a rotating electrical machine control device that calculates a duty ratio of the duty signal based on a target energization current and the detected current value, wherein the abnormality diagnosis unit corresponds to the duty ratio and the duty ratio.
  • the abnormality diagnosis is performed.
  • a field circuit for example, when a short circuit occurs in an intermediate portion of a field winding (that is, when an intermediate short circuit occurs), it is considered that the path resistance of the field circuit is unintentionally reduced.
  • the actual duty ratio deviates from the predetermined normal range, so that the field circuit abnormality diagnosis is preferably performed based on the correlation deviation. Can be implemented.
  • the fail-safe processing unit adds a limit to the energization current flowing in the field winding as the fail-safe processing when the abnormality diagnosis unit determines that the correlation shift has occurred.
  • the path resistance of the field circuit may be unintentionally increased.
  • the amount of heat generated in the field circuit increases if the field winding is energized as usual.
  • heat generation in the field circuit can be suppressed by adding a limit to the energization current flowing through the field winding as fail-safe processing.
  • the path resistance of the field circuit may be unintentionally reduced.
  • the energization current of the field circuit may increase unintentionally.
  • the energization current of the field circuit can be appropriately controlled.
  • the abnormality diagnosis unit determines whether the detected current value remains zero or whether the detected current value decreases when the duty ratio of the duty signal increases. Thus, the abnormality diagnosis is performed.
  • the field circuit when an off failure (open failure) of the first switching element occurs, it is conceivable that the current does not flow or decreases even when the duty ratio of the duty signal increases. In this case, by monitoring the change in the current detection value when the duty ratio of the duty signal increases, the field circuit abnormality diagnosis can be suitably performed.
  • the field circuit includes, as the plurality of switching elements, in addition to the first switching element and the second switching element, a third switching element provided in parallel with the first switching element, And a fourth switching element provided in parallel with the second switching element.
  • Each of these switching elements is provided in an H-bridge form, and the third switching element is always off, and the fourth switching element is provided.
  • a rotating electrical machine control device for controlling an energization current of the field winding by alternately turning on and off the first switching element and the second switching element by the duty signal in a state where the element is always on.
  • the fail-safe processing unit is configured to reduce the duty signal duty by the abnormality diagnosis unit.
  • the first switching element When it is determined that the detected current value remains zero or the detected current value decreases when the ratio increases, the first switching element is always turned off as the fail-safe process, and the second switching is performed. With the element always on, the third switching element and the fourth switching element are alternately turned on and off by the duty signal to perform reverse excitation of the field winding.
  • the energization current of the field winding is controlled by performing reverse excitation by alternately turning on and off the third switching element and the fourth switching element while the switching element is always off and the second switching element is always on. .
  • field current control can be continuously implemented after the OFF failure of the 1st switching element arises.
  • a diode is connected in parallel to the second switching element in a direction allowing a current flow from the ground side to the power supply side.
  • the second switching element The electrical path on the ground side of the electrical paths at both ends of the is provided with a return current detection unit that detects a return current that flows in a state where the first switching element is off and the second switching element is on, The acquisition unit acquires a return current detection value detected by the return current detection unit, and the abnormality diagnosis unit is in a state where the first switching element is turned on and the second switching element is turned off by the duty signal. Then, it is determined whether or not the return current detection value in the direction from the ground side to the power supply side through the second switching element is equal to or greater than a predetermined value. Accordingly, carrying out the abnormality diagnosis.
  • an energization current flows from the power supply unit to the ground via the field winding, and then the first switching element.
  • the switch is turned off and the second switching element is turned on, the return current continuously flows through the field winding even when the connection with the power supply is cut off.
  • an off failure (open failure) of the first switching element occurs when a current is flowing through the field winding, the first switching element is on and the second switching element is off.
  • the return current (current flowing from the ground side to the power supply side through the second switching element) flows to the return current detection unit via the diode provided in antiparallel with the second switching element. Can be considered. Therefore, by monitoring the return current detection value in a state where the first switching element is turned on and the second switching element is turned off by the duty signal, the field circuit abnormality diagnosis can be suitably performed.
  • the field circuit includes, as the plurality of switching elements, in addition to the first switching element and the second switching element, a third switching element provided in parallel with the first switching element, And a fourth switching element provided in parallel with the second switching element.
  • Each of these switching elements is provided in an H-bridge form, and the third switching element is always off, and the fourth switching element is provided.
  • a rotating electrical machine control device for controlling an energization current of the field winding by alternately turning on and off the first switching element and the second switching element by the duty signal in a state where the element is always on.
  • the fail-safe processing unit is configured by the abnormality diagnosis unit and the duty signal according to the duty signal.
  • the third switching element and the fourth switching element are alternately turned on and off by the duty signal in a state where the first switching element is always off and the second switching element is always on. Thus, reverse excitation of the field winding is performed.
  • the return current flows.
  • the third switching element and the fourth switching element are alternately turned on and off in a state where the first switching element is always off and the second switching element is always on.
  • the energization current of the winding is controlled.
  • the parallel path portion includes a field current flowing through the field winding between the field winding and a ground-side end portion of the second switching element.
  • a field current detection unit for detecting current is provided, and among the electrical paths at both ends of the second switching element, the ground-side electrical path has the first switching element off and the second switching element on.
  • a return current detection unit for detecting a return current flowing in a state is provided, the acquisition unit acquires a field current detection value detected by the field current detection unit, and the return current detection unit The detected return current detection value is acquired, and the abnormality diagnosis unit does not decrease the field current detection value even when the duty ratio of the duty signal decreases, and the second switching Based on the return current detection value of the orientation from the ground side to the power supply unit side it remains below a predetermined value through the child, to implement the diagnosis.
  • the field circuit has a cutoff switch between the power supply unit and the first switching element, which connects or disconnects between the power supply unit and the first switching element.
  • the fail safe processing unit determines that the field current detection value does not decrease and the return current detection value is zero even when the duty ratio of the duty signal decreases by the abnormality diagnosis unit. In this case, as the fail-safe process, instead of alternately turning on and off the first switching element and the second switching element, the cutoff switch and the second switching element are alternately turned on and off.
  • the cut-off switch and the second switching element are alternately turned on and off instead of turning on and off the first switching element and the second switching element alternately.
  • an on-failure (closed failure) of the first switching element occurs, field current control equivalent to that before the failure occurs can be performed, and appropriate fail-safe processing can be performed.
  • the abnormality diagnosis unit determines whether or not the amount of fluctuation of the current detection value within a predetermined time is greater than or equal to a predetermined amount, or the amount of fluctuation of the duty ratio of the duty signal within a predetermined time is predetermined.
  • the abnormality diagnosis is performed by determining whether or not the above is true.
  • the abnormality diagnosis of the field circuit is suitably performed based on the fluctuation amount of the current detection value within a predetermined time being equal to or larger than the predetermined value or the fluctuation amount of the duty ratio within the predetermined time being equal to or larger than the predetermined value. be able to.
  • the abnormality diagnosis may be performed based on the fluctuation amount of the current detection value or the fluctuation amount of the duty ratio as described above.
  • the fail-safe processing unit determines that the abnormality diagnosis unit determines that the fluctuation amount of the current detection value within a predetermined time is greater than or equal to a predetermined value, or the duty ratio within the predetermined time.
  • a limit is added to the energization current flowing through the field winding as the fail-safe process.
  • a fail-safe process a limit is added to the energization current flowing in the field winding. As a result, an appropriate fail-safe process is performed when the fluctuation amount of the energizing current (current ripple) increases due to the OFF failure (open failure) of the second switching element or the fluctuation amount of the duty ratio increases. Can be implemented.
  • a diode for example, a parasitic diode
  • the second switching element in antiparallel
  • a diode for example, a parasitic diode
  • the first switching element is turned off and the second switching element is turned on in the ground-side electric path among the electric paths at both ends of the second switching element.
  • a return current detection unit that detects a return current flowing through the return current detection unit, wherein the acquisition unit acquires a return current detection value detected by the return current detection unit, and the abnormality diagnosis unit receives the duty signal based on the duty signal. Whether the return current detection value in the direction from the power supply unit side to the ground side through the second switching element is greater than or equal to a predetermined value with the first switching element turned on and the second switching element turned off Based on the determination, the abnormality diagnosis is performed.
  • the abnormality diagnosis of the field circuit can be suitably performed by monitoring the return current detection value in a state where the first switching element is turned on and the second switching element is turned off by the duty signal.
  • the field circuit includes, as the plurality of switching elements, in addition to the first switching element and the second switching element, a third switching element provided in parallel with the first switching element, And a fourth switching element provided in parallel with the second switching element.
  • Each of these switching elements is provided in an H-bridge form, and the third switching element is always off, and the fourth switching element is provided.
  • a rotating electrical machine control device for controlling an energization current of the field winding by alternately turning on and off the first switching element and the second switching element by the duty signal in a state where the element is always on.
  • the fail-safe processing unit uses the duty signal by the abnormality diagnosis unit.
  • the third switching element and the fourth switching element are alternately switched by the duty signal in a state where the first switching element is always off and the second switching element is always on.
  • the field winding is reversely excited by turning it on and off.
  • the third switching element is always turned off and the second switching element is always turned on as a fail-safe process at the time of abnormality diagnosis associated with the on failure (closed failure) of the second switching element.
  • the energizing current of the field winding is controlled by performing reverse excitation by alternately turning on and off the switching element and the fourth switching element. Thereby, field current control can be continuously implemented after the ON failure of the second switching element occurs.
  • the field circuit has a cutoff switch between the power source unit and the first switching element, which connects or disconnects between the power source unit and the first switching element.
  • the fail safe processing unit is configured such that the abnormality diagnosis unit causes the first switching element to be turned on and the second switching element to be turned off by the duty signal, and from the power supply unit side to the ground side through the second switching element.
  • the cutoff switch is set to a cutoff state as the fail-safe process.
  • the cutoff switch provided between the power supply unit and the first switching element is set to the cutoff state. Thereby, an appropriate fail-safe process can be performed when an ON failure (closed failure) of the second switching element occurs.
  • the field circuit includes, as the plurality of switching elements, a third switching element provided in parallel with the first switching element in addition to the first switching element and the second switching element, And a fourth switching element provided in parallel with the second switching element.
  • Each of these switching elements is provided in an H-bridge form, and the third switching element is always off, and the fourth switching element is provided.
  • a rotating electrical machine control device for controlling an energization current of the field winding by alternately turning on and off the first switching element and the second switching element by the duty signal in a state where the element is always on.
  • the abnormality diagnosis unit includes a series of the third switching element and the fourth switching element. By determining whether more than a predetermined current flows in the road, carrying out the abnormality diagnosis.
  • the field circuit abnormality diagnosis can be suitably performed by determining whether or not a predetermined current or more has flowed through the series path of the third switching element and the fourth switching element.
  • the field circuit has a cutoff switch between the power supply unit and the first switching element, which connects or disconnects between the power supply unit and the first switching element.
  • the fail-safe processing unit is configured as the first fail-safe process when the abnormality diagnosis unit determines that a predetermined current or more has flowed through a series path of the third switching element and the fourth switching element. In a state where the switching element is always off and the second switching element is always on, the cutoff switch and the fourth switching element are alternately turned on and off by the duty signal to perform reverse excitation of the field winding. .
  • the energization current of the field winding is controlled by performing reverse excitation by alternately turning on and off the cutoff switch and the fourth switching element in a state where one switching element is always off and the second switching element is always on.
  • field current control can be continuously performed after the on-failure of the third switching element occurs.
  • the rotating electrical machine unit includes an inverter circuit that causes an energization current to flow through the armature winding in accordance with a rotational phase of the rotating electrical machine
  • the fail safe processing unit includes the inverter circuit in the inverter circuit. The reverse excitation is performed in a state where the current phase of the armature winding is shifted by 180 degrees.
  • the field winding is reversely excited while the current phase of the armature winding in the inverter circuit is shifted by 180 degrees, so that the rotation state of the rotating electrical machine can be changed even after the fail-safe process. Can keep good.
  • a nineteenth means when the failure safe processing unit determines that the abnormality has occurred, at least after the elapse of a predetermined time having a time width in which the energization current flowing through the field winding is once zero, The reverse excitation is started.
  • reverse excitation of the field winding When reverse excitation of the field winding is performed, the direction of the energization current in the field winding is opposite to that of normal excitation. At this point, when it is determined that an abnormality has occurred, reverse excitation is started after a lapse of a predetermined time having a time width at which the energization current flowing through the field winding is once zero. To reverse excitation can be properly implemented.
  • the field circuit has a cutoff switch between the power supply unit and the first switching element, which connects or disconnects between the power supply unit and the first switching element.
  • the fail-safe processing unit is configured to use the cutoff switch as the fail-safe process. Is turned off.
  • the cutoff switch provided between the power supply unit and the first switching element is set to the cutoff state. Thereby, when an on-failure (closed failure) of the third switching element occurs, an appropriate fail-safe process can be performed.
  • the fail-safe processing unit turns off each of the switching elements after the energizing current flowing through the field winding becomes zero as the fail-safe processing by setting the shut-off switch to a shut-off state. To do.
  • the parallel path section includes a field current flowing through the field winding between the field winding and a ground-side end of the second switching element.
  • a field current detection unit for detecting current is provided, and among the electrical paths at both ends of the second switching element, the ground-side electrical path has the first switching element off and the second switching element on.
  • a return current detection unit for detecting a return current flowing in a state is provided, the acquisition unit acquires a field current detection value detected by the field current detection unit, and the return current detection unit The detected return current detection value is acquired, and the abnormality diagnosis unit detects that the field current detection value is zero even when the duty ratio of the duty signal increases, and the second switching The return current detection value of the orientation of the ground side through the child to the power supply unit side based on the predetermined or higher, carrying out the abnormality diagnosis.
  • the field circuit when a ground short occurs in the electrical path connected to the ground side terminal (low side terminal) of the second switching element among the electrical paths at both ends of the field winding, Although the field winding is energized and the energization current thereafter is recirculated (that is, energization in the direction from the ground side to the power supply unit through the second switching element), the current detection by the field current detection unit is possible. It may be impossible to do so. Therefore, even when the duty ratio increases, the field current detection value is zero, and the return current detection value is equal to or greater than a predetermined value, so that the field circuit abnormality diagnosis can be suitably performed.
  • the fail safe processing unit causes the abnormality diagnosing unit to detect the field current detected value is zero even when the duty ratio of the duty signal is increased, and to pass the ground side through the second switching element.
  • the first switching element is turned off as the fail-safe process when it is determined that the detected value of the return current in the direction from the power source to the power source is greater than or equal to a predetermined value.
  • the first switching element is turned off as fail-safe processing. This makes it possible to perform an appropriate fail-safe process when a ground short occurs on the low-side terminal side of the second switching element in the electrical path at both ends of the field winding.
  • the abnormality diagnosis unit performs the abnormality diagnosis based on the fact that the detected current value does not decrease and change even when the duty ratio of the duty signal decreases.
  • the fail-safe processing unit performs the fail-safe processing as the fail-safe processing when the abnormality diagnosis unit determines that the detected current value does not change even when the duty ratio of the duty signal decreases.
  • the second switching element is turned off.
  • the second switching element is turned off as a fail-safe process.
  • an appropriate fail-safe process can be performed when a power supply short circuit occurs on the high-side terminal side of the second switching element in the electrical path at both ends of the field winding.
  • the field circuit includes, as the plurality of switching elements, a third switching element provided in parallel with the first switching element in addition to the first switching element and the second switching element, And a fourth switching element provided in parallel with the second switching element.
  • Each of these switching elements is connected in an H-bridge shape, and the first switching element and the second switching element are turned on / off.
  • a reverse excitation control unit that performs reverse excitation of the field winding by turning on and off the third switching element and the fourth switching element, and the abnormality diagnosis unit performs the reverse excitation.
  • the abnormality diagnosis is performed based on a change in the current detection value in a state where the current is being performed.
  • FIG. 1 is an electric circuit diagram showing a vehicle system.
  • FIG. 2 is a circuit diagram showing an electrical configuration of the rotating electrical machine unit.
  • FIG. 3 is a circuit diagram showing energization paths in the field circuit,
  • FIG. 4 is a diagram showing the correlation between the duty ratio and the field current,
  • FIG. 5 is a flowchart showing an abnormality diagnosis and fail-safe processing procedure.
  • FIG. 6 is a diagram showing the relationship between the power supply voltage, the temperature of the rotating electrical machine, and the abnormality determination value.
  • FIG. 7 is a flowchart showing a processing procedure for abnormality diagnosis in another embodiment.
  • FIG. 8 is a circuit diagram showing a field circuit having a half-bridge configuration.
  • an abnormality diagnosis device that performs abnormality diagnosis of the system is embodied.
  • parts that are the same or equivalent to each other are given the same reference numerals in the drawings, and the description of the same reference numerals is used.
  • the vehicle system is a two-power supply system having a lead storage battery 11 and a lithium ion storage battery 12 as a power supply unit.
  • Each storage battery 11, 12 can supply power to the starter 13, various electric loads 14, 15, and the rotating electrical machine unit 16. Further, each of the storage batteries 11 and 12 can be charged by the rotating electrical machine unit 16.
  • a lead storage battery 11 and a lithium ion storage battery 12 are connected in parallel to the rotating electrical machine unit 16 and the electrical loads 14 and 15, respectively.
  • the lead storage battery 11 is a well-known general-purpose storage battery.
  • the lithium ion storage battery 12 is a high-density storage battery that has less power loss during charging / discharging and higher output density and energy density than the lead storage battery 11.
  • the lithium ion storage battery 12 is desirably a storage battery having higher energy efficiency during charging / discharging than the lead storage battery 11.
  • the lithium ion storage battery 12 is configured as an assembled battery having a plurality of single cells. These storage batteries 11 and 12 have the same rated voltage, for example, 12V.
  • the lithium ion storage battery 12 is housed in a housing case and configured as a battery unit U integrated with a substrate.
  • the battery unit U has output terminals P1, P2 and P3, of which the lead storage battery 11, the starter 13 and the electric load 14 are connected to the output terminals P1 and P3, and the electric load 15 and the rotation are connected to the output terminal P2.
  • the electric unit 16 is connected.
  • the electric loads 14 and 15 have different requirements for the voltage of power supplied from the storage batteries 11 and 12.
  • the electric load 14 includes a constant voltage required load that is required to be stable so that the voltage of the supplied power is constant or at least fluctuates within a predetermined range.
  • the electric load 15 is a general electric load other than the constant voltage required load.
  • the electric load 14 that is a constant voltage required load include various ECUs such as a navigation device, an audio device, a meter device, and an engine ECU. In this case, by suppressing the voltage fluctuation of the supplied power, it is possible to suppress the occurrence of unnecessary reset and the like in each of the above devices, and ensure stable operation.
  • the electric load 14 may include a travel system actuator such as an electric steering device or a brake device.
  • Specific examples of the electric load 15 include a seat heater, a heater for a defroster for a rear window, a headlight, a wiper for a front window, and a blower fan for an air conditioner.
  • the rotating electrical machine unit 16 includes a rotating electrical machine 21, an inverter 22, a field circuit 23, and a rotating electrical machine ECU 24 that controls the operation of the rotating electrical machine 21.
  • the rotating electrical machine unit 16 is a generator with a motor function, and is configured as an electromechanically integrated ISG (Integrated / Starter / Generator). Details of the rotating electrical machine unit 16 will be described later.
  • the battery unit U is provided with an electrical path L1 that connects the output terminals P1 and P2 and an electrical path L2 that connects the point N1 on the electrical path L1 and the lithium ion storage battery 12 as an in-unit electrical path.
  • the switch 31 is provided in the electrical path L1
  • the switch 32 is provided in the electrical path L2.
  • the battery unit U is provided with a bypass path L3 that bypasses the switch 31.
  • the bypass path L3 is provided so as to connect the output terminal P3 and the point N1 on the electrical path L1.
  • the output terminal P3 is connected to the lead storage battery 11 via the fuse 35.
  • a bypass switch 36 composed of a normally closed mechanical relay is provided in the bypass path L3, for example. By turning on (closing) the bypass switch 36, the lead storage battery 11, the electrical load 15, and the rotating electrical machine unit 16 are electrically connected even when the switch 31 is turned off (opened).
  • the battery unit U includes a battery ECU 37 that controls on / off (opening / closing) of the switches 31 and 32.
  • the battery ECU 37 is constituted by a microcomputer including a CPU, a ROM, a RAM, an input / output interface, and the like.
  • the battery ECU 37 controls the on / off of the switches 31 and 32 based on the storage state of each of the storage batteries 11 and 12 and the command value from the engine ECU 40 that is the host controller. Thereby, charging / discharging is implemented using the lead storage battery 11 and the lithium ion storage battery 12 selectively.
  • the battery ECU 37 calculates the SOC (State Of Charge) of the lithium ion storage battery 12 and controls the charge amount and discharge amount of the lithium ion storage battery 12 so that the SOC is maintained within a predetermined use range.
  • SOC State Of Charge
  • the rotating electrical machine ECU 24 of the rotating electrical machine unit 16 and the battery ECU 37 of the battery unit U are connected to an engine ECU 40 as a host controller that manages the ECUs 24 and 37 in an integrated manner.
  • the engine ECU 40 is composed of a microcomputer including a CPU, ROM, RAM, input / output interface, and the like, and controls the operation of the engine 42 based on the engine operating state and the vehicle traveling state each time.
  • Each of the ECUs 24, 37, 40 and other various in-vehicle ECUs (not shown) are connected to each other via a communication line 41 that constructs a communication network such as a CAN and can communicate with each other, and bidirectional communication is performed at a predetermined cycle. Is done. Thereby, the various data memorize
  • the rotating electrical machine 21 is a three-phase AC motor, and includes three-phase armature windings 25, U-phase, V-phase, and W-phase windings 25 U, 25 V, and 25 W, and a field winding 26. Each phase winding 25U, 25V, 25W is star-connected and connected to each other at a neutral point.
  • the rotating shaft of the rotating electrical machine 21 is drivingly connected to an engine output shaft (not shown) by a belt, and the rotating shaft of the rotating electrical machine 21 is rotated by the rotation of the engine output shaft, while the rotating shaft of the rotating electrical machine 21 is rotated.
  • the engine output shaft rotates.
  • the rotating electrical machine 21 has a power generation function that generates power (regenerative power generation) by rotating the engine output shaft and the axle, and a power running function that applies rotational force to the engine output shaft.
  • the rotating electrical machine 21 is driven by powering at the time of engine restart in idling stop control or power assist for vehicle acceleration.
  • the inverter 22 converts the AC voltage output from each phase winding 25U, 25V, 25W into a DC voltage and outputs it to the battery unit U.
  • the inverter 22 converts the DC voltage input from the battery unit U into an AC voltage and outputs the AC voltage to the phase windings 25U, 25V, and 25W.
  • the inverter 22 is a bridge circuit having the same number of upper and lower arms as the number of phases of the phase winding, and constitutes a three-phase full-wave rectifier circuit.
  • the inverter 22 constitutes a drive circuit that drives the rotating electrical machine 21 by adjusting the electric power supplied to the rotating electrical machine 21.
  • the inverter 22 includes an upper arm switch Sp and a lower arm switch Sn for each phase.
  • the switches Sp and Sn of each phase are alternately turned on and off, time-series energization is performed for each phase.
  • voltage controlled semiconductor switching elements are used as the switches Sp and Sn, and specifically, N-channel MOSFETs are used.
  • An upper arm diode Dp is connected in antiparallel to the upper arm switch Sp, and a lower arm diode Dn is connected in antiparallel to the lower arm switch Sn. That is, each of the diodes Dp and Dn is provided in such a direction that the cathode is the power supply side and the anode is the ground side.
  • parasitic diodes of the switches Sp and Sn are used as the diodes Dp and Dn.
  • the diodes Dp and Dn are not limited to parasitic diodes, and may be diodes that are separate from the switches Sp and Sn, for example.
  • An intermediate point of the series connection body of the switches Sp and Sn in each phase is connected to one end of each phase winding 25U, 25V, and 25W.
  • the inverter 22 is provided with a current detector 29 that detects the phase currents Iu, Iv, and Iw in the current path for each phase.
  • the current detection unit 29 has a configuration including, for example, a shunt resistor and a current transformer.
  • the field circuit 23 energizes the field winding 26 in accordance with on / off of a plurality of switching elements.
  • the field circuit 23 includes one cutoff switch 50 and four field switches 51, 52, 53, and 54, and the field switches 51 to 54 constitute an H-bridge rectifier circuit.
  • the basic configuration of each of the switches 50 to 54 is the same as that of each switch of the inverter 22, and a diode Di is connected to the semiconductor switching element in antiparallel.
  • field switches 51 and 52 serving as a first switching element and a second switching element are connected in series between a power supply unit (battery unit U in FIG. 2) and the ground, and a third switching element.
  • Field switches 53 and 54 as elements and fourth switching elements are connected in series between the power supply unit and the ground. Then, the high side of the field switches 51 and 53, the intermediate points of the field switches 51 and 52 and the field switches 53 and 54, and the low side of the field switches 52 and 54 are electrically connected to each other.
  • the field switches 51 to 54 are connected in an H bridge shape. In this case, the field switch 53 is provided in parallel with the field switch 51, and the field switch 54 is provided in parallel with the field switch 52.
  • the field switches 51 to 54 are also referred to as a first switch 51, a second switch 52, a third switch 53, and a fourth switch 54, respectively.
  • the field winding 26 is provided in a path portion connecting the intermediate point of the field switches 51 and 52 and the intermediate point of the field switches 53 and 54.
  • the field winding 26 is connected to both ends of the second switch 52 and is provided in a parallel path section that is in parallel with the second switch 52.
  • One of both ends of the field winding 26 is connected to an F + terminal that is an intermediate point between the field switches 51 and 52, and the other is connected to an F ⁇ terminal that is an intermediate point between the field switches 53 and 54.
  • the F + terminal is a power supply side terminal (high side terminal), and the F ⁇ terminal is a ground side terminal (low side terminal).
  • the field winding 26 is connected to the F + terminal and the F ⁇ terminal via a brush (not shown).
  • the cut-off switch 50 is provided between the power supply unit and the first switch 51, and more specifically, between the bus connected to the battery unit U and the branch point of the first switch 51 and the third switch 53.
  • the power supply to the field circuit 23 and the power cutoff are switched by turning on and off the cutoff switch 50.
  • FIG. 3 shows an energization path in the field circuit 23.
  • the cutoff switch 50 is always on (fixed on)
  • the third switch 53 is always off (fixed off)
  • the fourth switch 54 is always on ( On-fixed).
  • the first switch 51 and the second switch 52 are turned on and off in a conflicting period. In this case, when the first switch 51 is turned on and the second switch 52 is turned off, as shown by a broken line in FIG.
  • a field current detector 55 for detecting a field current If flowing in the field winding 26 is provided on the ground side of the electric path at both ends of the fourth switch 54.
  • a return current detection unit 56 that detects the return current Ir that flows while the first switch 51 is off and the second switch 52 is on is provided. ing. If the direction from the power supply side to the ground is positive, the field current If is detected as a positive current, and the return current Ir is detected as a negative current.
  • the current detection units 55 and 56 have a configuration including, for example, a shunt resistor and a current transformer.
  • a voltage sensor 45 that detects an input / output voltage (that is, a power supply voltage) of the inverter 22 is provided on the high-voltage side path of the inverter 22.
  • the rotary electric machine 21 is provided with a temperature sensor 46 that detects, for example, the temperature of the stator as the temperature of the rotary electric machine 21.
  • the temperature sensor 46 may detect the temperature of the semiconductor switching element. The detection signals of each sensor including these are appropriately input to the rotating electrical machine ECU 24.
  • Each switch constituting the inverter 22 and the field circuit 23 is independently switched on / off via a driver 27.
  • the rotating electrical machine ECU 24 is configured by a microcomputer including a CPU, a ROM, a RAM, an input / output interface, and the like.
  • the rotating electrical machine ECU 24 adjusts the excitation current flowing through the field winding 26 by an IC regulator (not shown) inside. Thereby, the power generation voltage (output voltage with respect to the battery unit U) of the rotating electrical machine unit 16 is controlled.
  • the rotating electrical machine ECU 24 controls on / off of the switches Sp and Sn of each phase according to the energization phase, and controls the energization current by adjusting the on / off ratio (for example, duty ratio) when energizing each phase.
  • the rotating electrical machine ECU 24 assists the driving force of the engine by controlling the inverter 22 to drive the rotating electrical machine 21 after the vehicle starts running.
  • the rotating electrical machine 21 can apply initial rotation to the crankshaft when starting the engine, and also has a function as an engine starting device.
  • the rotating electrical machine ECU 24 calculates a target field current based on the power running torque command value and the generated voltage command value from the engine ECU 40 which is the host controller, and the target field current and the actual field current (field current).
  • the duty ratio of the control duty signal is calculated based on the deviation from the detected current value of the detection unit 55. Then, the first switch 51 and the second switch 52 are turned on and off by the control duty signal. Thereby, the field current is feedback controlled.
  • the rotating electrical machine ECU 24 obtains a current detection value of the energization current flowing through the field circuit 23, and performs an abnormality diagnosis of the field circuit 23 based on the control duty signal and the current detection value. . Further, when it is diagnosed that an abnormality has occurred in the field circuit 23, a predetermined fail-safe process is performed.
  • the field circuit 23 diagnoses abnormalities of the following forms, which will be described.
  • FIG. 4 is a diagram showing the correlation between the duty ratio of the control duty signal and the field current corresponding to the duty ratio.
  • the duty ratio and the field current are basically in a relationship indicated by a solid line in FIG. 4, and the field current increases proportionally as the duty ratio increases. Further, when the field current is feedback-controlled, the duty ratio increases proportionally as the field current (actual current) increases. In such a case, when an abnormality occurs in which the path resistance of the field circuit 23 increases, the correlation between the duty ratio and the field current changes as indicated by a broken line A1. An abnormality diagnosis of the field circuit 23 is performed based on this correlation shift.
  • the off failure (open failure) of the first switch 51 In addition to the off failure (open failure) of the first switch 51, the off failure (open failure) of the fourth switch 54, the disconnection of the field winding 26, or the disconnection of the commutator of the field winding 26 occurs.
  • the field current does not flow or decreases when the duty ratio increases. Even in such a case, the abnormality of the field circuit 23 can be diagnosed by monitoring the change in the detected field current when the duty ratio increases.
  • abnormality diagnosis may be performed based on the fluctuation amount of the field current detection value and the fluctuation amount of the duty ratio as described above.
  • the abnormality diagnosis of the field circuit 23 is performed by monitoring the change of the field current detection value (If) when the duty ratio of the control duty signal becomes small.
  • the field winding 26 is energized as usual when the correlation deviation abnormality on the duty decreasing side is occurring, there is a concern that the energizing current of the field circuit 23 will increase unintentionally.
  • the field current is appropriately controlled by adding a limit to the field current as fail-safe processing.
  • the first switch 51 and the second switch 52 are used.
  • the field current is controlled by performing reverse excitation by switching the above control and the control of the third switch 53 and the fourth switch 54. As a result, the field current control is continuously performed after the first switch 51 is turned off.
  • fail-safe 2 reverse excitation may be performed with the current phase of the armature winding 25 in the inverter 22 shifted by 180 degrees. Thereby, the rotational state of the rotating electrical machine 21 is kept good even after the fail-safe process is performed.
  • reverse excitation may be started at least after a lapse of a predetermined time having a time width in which the field current flowing through the field winding 26 is once zero.
  • the direction of the energization current in the field winding 26 is opposite to that of normal excitation.
  • the transition from normal excitation to reverse excitation is started by starting reverse excitation after a lapse of a predetermined time having a time width at which the field current temporarily becomes zero. Can be implemented properly.
  • the fail-safe process (fail-safe 2) by reverse excitation of the field winding 26 is performed as described above. Good.
  • the diode Di is connected to the second switch 52 in antiparallel, it is considered that the return current flows through the diode Di even if the second switch 52 has an off failure.
  • the current flowing through the diode Di is limited, and the diode Di is protected.
  • the reverse excitation may be performed in a state where the current phase of the armature winding 25 in the inverter 22 is shifted by 180 degrees.
  • reverse excitation may be started at least after a lapse of a predetermined time having a time width in which the field current flowing through the field winding 26 is once zero.
  • the fail safe 6 can be implemented instead of the fail safe 5.
  • the cutoff switch 50 is set in a cutoff state.
  • all the field switches 51 to 54 are preferably turned off after the shut-off switch 50 is shut off and the return current flowing through the field winding 26 becomes zero.
  • all the field switches 51 to 54 are turned off after waiting for the return current detection value (Ir) to become zero.
  • Ir return current detection value
  • the on / off control of the cutoff switch 50 and the fourth switch 54 is performed instead of the on / off control of the first switch 51 and the second switch 52.
  • the field current control is continuously performed.
  • the reverse excitation may be performed in a state where the current phase of the armature winding 25 in the inverter 22 is shifted by 180 degrees.
  • reverse excitation may be started at least after a lapse of a predetermined time having a time width in which the field current flowing through the field winding 26 is once zero.
  • the fail safe 8 When it is determined that the abnormality 8 described above, that is, the on failure of the third switch 53 has occurred, the fail safe 8 can be implemented instead of the fail safe 7. In the fail-safe process, the cutoff switch 50 is set in a cutoff state.
  • step S ⁇ b> 11 it is determined as abnormality 1 whether a correlation deviation abnormality on the duty increase side has occurred. Further, in step S12, it is determined whether or not the abnormality of correlation deviation on the duty decreasing side has occurred as abnormality 2.
  • the normal range of the duty ratio is determined according to the field current in the correlation of FIG. 4, and the abnormality determination value including the boundary value (upper limit value and lower limit value) of the normal range is set as the current duty ratio. To determine whether or not there is a correlation error.
  • the abnormality determination value may be variably determined according to the power supply voltage and the temperature of the rotating electrical machine 21. For example, the abnormality determination value Dth is determined based on the relationship of FIG.
  • step S21 a restriction is applied to the field current flowing through the field winding 26.
  • the upper limit value of the field current may be a fixed value or may be variable according to the amount of correlation shift. For example, the upper limit value of the current limit is decreased (the limit is increased) as the correlation shift amount (duty ratio shift amount with respect to the normal range) increases.
  • the width of the current limit may be variable according to the target field current (for example, the upper limit value of the current limit is increased as the target current is increased).
  • step S13 it is determined whether or not the first switch 51 has an off failure as an abnormality 3. At this time, if the field current detection value (If) remains zero even if the duty ratio of the control duty signal becomes large, or if the field current detection value (If) changes to decrease, an abnormality occurs. Judgment is made.
  • step S14 it is determined whether or not an off failure of the first switch 51 has occurred as an abnormality 4.
  • the return current detection value is greater than or equal to a predetermined value ( ⁇ Ir ⁇ Ith1) in the direction from the ground side to the power supply unit side. If it is, it is determined that an abnormality has occurred. Note that “ ⁇ Ir” indicates that the return current flows in the direction from the ground side to the power supply unit side. Steps S13 and S14 both determine an off failure of the first switch 51, and may be configured to implement only one of them.
  • step S22 the third switch 53 and the fourth switch 54 are alternately turned on and off by the control duty signal in a state where the first switch 51 is always off and the second switch 52 is always on. Perform reverse excitation.
  • step S15 it is determined whether there is an on failure of the first switch 51 as an abnormality 5. At this time, even if the duty ratio of the control duty signal is reduced, the field current detection value (If) does not decrease and the return current detection value is less than or equal to a predetermined value ( ⁇ Ir ⁇ I) in the direction from the ground side to the power supply side. If it remains Ith2), it is determined that an abnormality has occurred.
  • step S15 when step S15 is affirmed, it will progress to step S23 and will implement the fail safe 3.
  • step S23 instead of alternately turning on and off the first switch 51 and the second switch 52, the cutoff switch 50 and the second switch 52 are alternately turned on and off.
  • step S ⁇ b> 16 it is determined whether or not an off failure of the second switch 52 has occurred as an abnormality 6. At this time, when the fluctuation amount of the field current detection value (If) within a predetermined time becomes equal to or greater than a predetermined value, or when the fluctuation amount of the duty ratio within a predetermined time becomes equal to or greater than a predetermined value, it is determined that an abnormality has occurred.
  • the predetermined time may be a time corresponding to the cycle of the control duty signal (for example, carrier cycle). Alternatively, the predetermined time may be a cycle correlated with the rotation of the rotating electrical machine 21.
  • step S16 when step S16 is affirmed, it will progress to step S24 and will implement the fail safe 4.
  • FIG. in step S23 the field current flowing through the field winding 26 is limited.
  • the upper limit value of the current limit may be a fixed value or may be variable according to the target field current (for example, the upper limit value of the current limit is increased as the target current is larger).
  • step S17 it is determined whether or not the second switch 52 has an ON failure as an abnormality 7.
  • the return current detection value becomes equal to or greater than a predetermined value (Ir ⁇ Ith3) in the direction from the power supply unit side to the ground side. If so, it is determined that an abnormality has occurred.
  • step S17 when step S17 is affirmed, it will progress to step S25 and will implement the fail safe 5.
  • step S25 the third switch 53 and the fourth switch 54 are alternately turned on and off by the control duty signal in a state where the first switch 51 is always off and the second switch 52 is always on. Perform reverse excitation.
  • step S25 fail safe 6 may be performed instead of fail safe 5.
  • the cut-off switch 50 is put into a cut-off state as fail-safe processing.
  • step S18 it is determined whether or not the third switch 53 has an ON failure as an abnormality 8. At this time, when a current greater than or equal to a predetermined value flows through the series path of the third switch 53 and the fourth switch 54, that is, when the field current detection value (If) exceeds a predetermined value, it is determined that an abnormality has occurred.
  • step S18 when step S18 is affirmed, it will progress to step S26 and will implement the fail safe 7.
  • step S26 in the state where the first switch 51 is always off and the second switch 52 is always on, the cutoff switch 50 and the fourth switch 54 are alternately turned on and off by the control duty signal to reverse the field winding 26. Perform excitation.
  • step S26 fail safe 8 may be implemented instead of fail safe 7.
  • the cut-off switch 50 is put into a cut-off state as fail-safe processing.
  • step S19 it is determined whether an abnormality 9 has caused a ground fault in the F-terminal.
  • the field current detection value (If) is zero even when the duty ratio increases, and the return current detection value is greater than or equal to a predetermined value ( ⁇ Ir ⁇ Ith1) in the direction from the ground side to the power supply side.
  • step S19 it is determined that an abnormality has occurred. And if step S19 is affirmed, it will progress to step S27 and will turn off the 1st switch 51 as the fail safe 9.
  • step S20 it is determined whether or not an F + terminal power fault has occurred as an abnormality 10. At this time, if the field current detection value (If) does not decrease and change even when the duty ratio of the control duty signal decreases, it is determined that an abnormality has occurred. When step S20 is affirmed, the process proceeds to step S28, and the second switch 52 is turned off as the fail safe 10. In steps S21 to S28, diagnostic information indicating the occurrence of abnormality for each form of abnormality may be stored in the memory.
  • the field circuit 23 is properly diagnosed for abnormality by the control duty signal and the current detection value, and fail-safe processing is performed based on the result of the abnormality diagnosis. Implemented properly.
  • the abnormality diagnosis of the field circuit 23 can be properly performed.
  • the abnormality of the rotating electrical machine 21 can be properly grasped, and consequently the rotating electrical machine 21 can be appropriately driven.
  • the following processing may be performed as abnormality diagnosis processing and fail safe processing.
  • the field circuit 23 having an H-bridge configuration even if an off failure of the second switch 52 or an off failure of the third switch 53 occurs, the energization of the field winding 26 is continued. That is, even if either of the second and third switches 52 and 53 is turned off, the field current is detected within the normal range. Therefore, it may be difficult to determine the off failure of the second and third switches 52 and 53. Therefore, the rotating electrical machine ECU 24 performs reverse excitation by turning on and off the third switch 53 and the fourth switch 54 instead of turning on and off the first switch 51 and the second switch 52, and performs the reverse excitation.
  • An abnormality diagnosis of the field circuit 23 is performed by monitoring a change in the current detection value in a state where the current is detected. The abnormality diagnosis process by the rotating electrical machine ECU 24 is shown in FIG.
  • step S31 it is determined whether or not the ignition switch is immediately after being turned on. If YES, the field winding 26 is reversely excited in step S32. At this time, the third switch 53 and the fourth switch 54 may be turned on / off with a predetermined duty ratio. Thereafter, in step S33, a current detection value (field current detection value, return current detection value) is acquired in a state where reverse excitation is being performed. In subsequent step S34, based on the current detection value, the second switch 52 is obtained. It is determined whether or not the third switch 53 is operating normally.
  • the second switch 52 corresponds to the fourth switch 54 in the case of normal excitation
  • the third switch 53 corresponds to the first switch 51 in the case of normal excitation. Therefore, among the above-described abnormality diagnosis methods, the abnormality diagnosis method related to abnormality 3 or the abnormality diagnosis method related to abnormality 4 can be used to determine whether the second switch 52 is off or the third switch 53 is off. . Note that when performing abnormality diagnosis relating to abnormality 3, it is preferable to intentionally increase the duty ratio of the control duty signal and acquire the current detection value at that time.
  • step S35 If no off failure has occurred in the second switch 52 or the third switch 53, it is determined in step S35 that it is normal. If an off failure has occurred in the second switch 52 or the third switch 53, a step is performed. In S36, it is determined that there is an abnormality.
  • the shut-off switch 50 When it is determined that the second switch 52 is off, the shut-off switch 50 is put into a shut-off state as a fail-safe process. If an off-failure is determined by the third switch 53, nothing is performed as the fail-safe process, and only the diagnosis information indicating the occurrence of abnormality is stored.
  • the abnormality diagnosis in FIG. 7 may be performed when the rotating electrical machine 21 is not in operation, and may be performed immediately after the ignition switch is turned off.
  • the field circuit 23 is configured with an H-bridge circuit, but the field circuit 23 may be configured with a half-bridge circuit instead.
  • FIG. 8 shows a field circuit 23 having a half-bridge circuit configuration.
  • the first switch 51 and the second switch 52 are connected in series between the power supply unit and the ground, and the field winding 26 is connected to the parallel path unit in parallel with the second switch 52. Is provided. Also in this configuration, the first switch 51 and the second switch 52 are on / off controlled in a conflicting period, and abnormality diagnosis using the above-described abnormality diagnosis method is appropriately performed.
  • the cutoff switch 50 is provided on the high side of the first switch 51.
  • the present invention is not limited to this, and the low side of the second switch 52 (more specifically, the bus connected to the ground and the second switch 52 and The cutoff switch 50 may be provided between the branch point of the fourth switch 54).
  • the rotating electrical machine that performs the power generation operation and the power running operation has been described, but the present invention can also be applied to a rotating electrical machine that performs only the power generation operation or the power running operation.
  • the power supply system to which the present disclosure is applied can also be used for uses other than vehicles, for example, for ships, aircraft, robots, and the like.
  • each said component is conceptual and is not limited to the said embodiment.
  • the functions of one component may be realized by being distributed to a plurality of components, or the functions of a plurality of components may be realized by one component.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

L'invention concerne une unité de machine électrique rotative (16) qui comprend : une machine électrique rotative (21) ayant un enroulement d'induit (25) et un enroulement de champ (26); et un circuit de champ (23) pour mettre sous tension l'enroulement de champ selon qu'une pluralité d'éléments de commutation (51-54) sont sous tension ou hors tension. Le circuit de champ comprend l'enroulement de champ dans une unité de trajet parallèle qui est connectée aux deux extrémités d'un second élément de commutation du côté terre parmi les éléments de commutation (51, 52), et est parallèle à ce second élément de commutation, et les éléments de commutation subissent respectivement une commande marche-arrêt par des signaux de service de manière à être sur des périodes de va-et-vient. Un dispositif de commande pour une machine électrique rotative (24) comporte : une unité d'acquisition pour acquérir la valeur de détection de courant pour un courant de mise sous tension qui s'écoule vers le circuit de champ; une unité de diagnostic d'anomalie pour mettre en oeuvre un diagnostic d'anomalie du circuit de champ sur la base du signal de service et de la valeur de détection de courant; et une unité de traitement à sécurité intégrée pour mettre en oeuvre un traitement à sécurité intégrée désigné lorsqu'il y a un diagnostic par l'unité de diagnostic d'anomalie dans le cas où une anomalie s'est produite.
PCT/JP2018/000453 2017-01-27 2018-01-11 Dispositif de commande pour machine électrique rotative WO2018139204A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-013093 2017-01-27
JP2017013093A JP6680231B2 (ja) 2017-01-27 2017-01-27 回転電機制御装置

Publications (1)

Publication Number Publication Date
WO2018139204A1 true WO2018139204A1 (fr) 2018-08-02

Family

ID=62978292

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/000453 WO2018139204A1 (fr) 2017-01-27 2018-01-11 Dispositif de commande pour machine électrique rotative

Country Status (2)

Country Link
JP (1) JP6680231B2 (fr)
WO (1) WO2018139204A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115088184A (zh) * 2021-01-14 2022-09-20 日产自动车株式会社 三相交流电动机的诊断方法及诊断装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7205388B2 (ja) * 2019-06-03 2023-01-17 株式会社デンソー 誘導性負荷制御装置
JP6877512B2 (ja) * 2019-11-12 2021-05-26 三菱電機株式会社 交流回転機の制御装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007028694A (ja) * 2005-07-12 2007-02-01 Hitachi Ltd 回転電機制御装置
US20080179945A1 (en) * 2005-05-11 2008-07-31 Mark Alan Linebach System and Method for Dealing With Ground Fault Conditions That Can Arise In An Electrical Propulsion System
JP2009118580A (ja) * 2007-11-02 2009-05-28 Mitsubishi Electric Corp 車両用回転電機装置
WO2016079800A1 (fr) * 2014-11-18 2016-05-26 三菱電機株式会社 Système de générateur électrique, dispositif de commande de générateur électrique, et procédé de régulation d'équilibre de génération électrique pour système de générateur électrique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080179945A1 (en) * 2005-05-11 2008-07-31 Mark Alan Linebach System and Method for Dealing With Ground Fault Conditions That Can Arise In An Electrical Propulsion System
JP2007028694A (ja) * 2005-07-12 2007-02-01 Hitachi Ltd 回転電機制御装置
JP2009118580A (ja) * 2007-11-02 2009-05-28 Mitsubishi Electric Corp 車両用回転電機装置
WO2016079800A1 (fr) * 2014-11-18 2016-05-26 三菱電機株式会社 Système de générateur électrique, dispositif de commande de générateur électrique, et procédé de régulation d'équilibre de génération électrique pour système de générateur électrique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115088184A (zh) * 2021-01-14 2022-09-20 日产自动车株式会社 三相交流电动机的诊断方法及诊断装置
CN115088184B (zh) * 2021-01-14 2023-08-22 日产自动车株式会社 三相交流电动机的诊断方法及诊断装置

Also Published As

Publication number Publication date
JP6680231B2 (ja) 2020-04-15
JP2018121495A (ja) 2018-08-02

Similar Documents

Publication Publication Date Title
JP5993616B2 (ja) 電動機の駆動制御装置
US10608575B2 (en) Abnormality diagnosis apparatus
JP6119475B2 (ja) 車載用モータ制御装置
CN109874350B (zh) 电源控制装置
WO2018139204A1 (fr) Dispositif de commande pour machine électrique rotative
JP5234050B2 (ja) 車両用電源装置
JP5968697B2 (ja) 車両用電源装置
WO2018143046A1 (fr) Unité de machine électrique tournante et véhicule
US10826425B2 (en) Drive device and control method for vehicle
JP6683167B2 (ja) 回転電機制御装置、及び電源システム
CN110574285B (zh) 旋转电机控制装置和控制系统
US10742156B2 (en) Control apparatus of rotating electrical machine
JP6620769B2 (ja) 制御システム
JP6708165B2 (ja) 回転電機装置の制御装置
JP6589803B2 (ja) 回転電機制御装置
JP6631296B2 (ja) 車載電源装置
JP6690567B2 (ja) スイッチ制御装置
JP6711305B2 (ja) 回転電機制御装置
WO2018047866A1 (fr) Dispositif de commande de machine électrique rotative
JP2020178522A (ja) 回転電機システム
JP2013070492A (ja) 電源装置
JP2011234472A (ja) 車両用電源装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18744518

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18744518

Country of ref document: EP

Kind code of ref document: A1