WO2015040890A1 - 電源装置 - Google Patents
電源装置 Download PDFInfo
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- WO2015040890A1 WO2015040890A1 PCT/JP2014/063558 JP2014063558W WO2015040890A1 WO 2015040890 A1 WO2015040890 A1 WO 2015040890A1 JP 2014063558 W JP2014063558 W JP 2014063558W WO 2015040890 A1 WO2015040890 A1 WO 2015040890A1
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- Prior art keywords
- input
- bypass
- output potential
- potential difference
- difference
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/06—Two-wire systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2250/00—Problems related to engine starting or engine's starting apparatus
- F02N2250/02—Battery voltage drop at start, e.g. drops causing ECU reset
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/10—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to mechanical injury, e.g. rupture of line, breakage of earth connection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
-
- 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present invention relates to a power supply apparatus that keeps the voltage of a battery constant and outputs it to a load.
- An idle stop vehicle is a vehicle that automatically stops the engine (idle stop) when it detects a stop operation of the vehicle, such as waiting for a signal, and then automatically restarts the engine when it detects a start operation of the vehicle. .
- a power supply device is provided between the battery and the load so that the output of a necessary voltage to the load can be maintained even when the voltage of the battery temporarily decreases. Is prepared.
- the bypass switch when restarting the engine after an idle stop, the bypass switch is always turned off and the booster circuit is operated to boost the voltage of the battery and output it to the load.
- the battery voltage is output to the load via the bypass switch by always turning on the bypass switch and stopping the booster circuit.
- an object of the present invention is to provide a power supply device capable of continuously outputting a stable voltage to a load mounted on an idle stop vehicle.
- the power supply apparatus includes a booster circuit, a bypass circuit having first and second bypass switches connected in parallel to the booster circuit, and the first circuit at a normal time other than when the engine is restarted after an idle stop. And a control circuit for turning on the second bypass switch, stopping the booster circuit, turning off the first and second bypass switches and driving the booster circuit when the engine is restarted after an idle stop. .
- the control circuit sets a first input / output potential difference of the bypass circuit and the first bypass switch when the first and second bypass switches are turned on at a normal time other than when the engine is restarted after the idle stop.
- second input / output potential difference of the bypass circuit when the second bypass switch is turned off and third input / output of the bypass circuit when the first and second bypass switches are turned on again
- a potential difference is detected, and the difference between the first and second input / output potential differences is greater than or equal to a first threshold value and the first bypass switch is determined to be open, a difference between the first and third input / output potential differences is detected. Is less than or equal to a second threshold, and if it is determined that the difference between the first and third input / output potential differences is less than or equal to the second threshold, the first bypass switch is turned on.
- FIG. 1 is a diagram showing a power supply device of the present embodiment.
- the power supply device 1 shown in FIG. 1 outputs a voltage to a load Lo while keeping the voltage of a battery B mounted on an idle stop vehicle constant, and includes a booster circuit 2 and a bypass circuit 3.
- the booster circuit 2 boosts the voltage of the battery B and outputs it to the load Lo when the engine is restarted after the idle stop.
- the boost switch SW is, for example, a MOSFET (Metal Oxide Semiconductor Semiconductor Field Effect Transistor) or an IGBT (Insulated Gate Bipolar Transistor).
- MOSFET Metal Oxide Semiconductor Semiconductor Field Effect Transistor
- IGBT Insulated Gate Bipolar Transistor
- the coil L is provided between the battery B and the boost switch SW.
- the rectifying diode D is provided between the coil L and the load Lo.
- the capacitor C1 is provided in the input stage of the booster circuit 2, and the capacitor C2 is provided in the output stage of the booster circuit 2.
- the drive circuit 4 drives the boost switch SW by the control signal S1 output from the control circuit 6.
- the control circuit power supply 5 supplies control power to the control circuit 6.
- the bypass circuit 3 includes a bypass switch SW1 (first bypass switch), a bypass switch SW2 (second bypass switch), and drive circuits 7 and 8.
- the bypass switches SW1 and SW2 are, for example, semiconductor switches such as MOSFETs and bipolar transistors or mechanical switches such as relays, and are connected in parallel to the booster circuit 2.
- the drive circuit 7 drives the bypass switch SW1 based on the control signal S2 output from the control circuit 6, and the drive circuit 8 drives the bypass switch SW2 based on the control signal S3 output from the control circuit 6.
- the control circuit 6 outputs control signals S1 to S3 based on various notifications sent from the host control circuit 9 that controls the operation of the entire idle stop vehicle.
- the control circuit 6 is realized by software or hardware, for example.
- the control circuit 6 includes a CPU and a memory, and is realized by the CPU reading and executing a program stored in the memory. Further, the control circuit 6 may be provided outside the booster circuit 2.
- control circuit 6 outputs control signals S2 and S3 that always turn on the bypass switches SW1 and SW2, respectively, and controls that always turns off the booster switch SW at normal times other than when the engine is restarted after idling stop.
- the signal S1 is output.
- the battery B and the load Lo are electrically connected via the bypass switches SW1 and SW2, and the booster circuit 2 does not perform a boost operation on the voltage of the battery B.
- a current flows from the battery B to the load Lo via the circuit 3.
- bypass mode The control operation performed by the control circuit 6 at this time is hereinafter referred to as “bypass mode”.
- control circuit 6 outputs control signals S2 and S3 that always turn off the bypass switches SW1 and SW2 when the engine is restarted after idling is stopped. As a result, there is no electrical connection between the battery B and the load Lo via the bypass switches SW1 and SW2. Further, the control circuit 6 outputs a control signal S1 for repeatedly turning on and off the boost switch SW when the engine is restarted after idling is stopped. As a result, the voltage of the battery B is boosted and output to the load Lo. That is, when the engine is restarted after idling is stopped, the output of the necessary voltage to the load Lo can be maintained even if the voltage of the battery B is temporarily reduced by driving the starter motor.
- boost mode The control operation performed by the control circuit 6 at this time is hereinafter referred to as “boost mode”.
- control circuit 6 determines whether or not the bypass switch SW1 or the bypass switch SW2 has an open failure every certain time (for example, 5 [seconds]) in the “bypass mode”. When the control circuit 6 determines that the bypass switch SW1 or the bypass switch SW2 has an open failure, the control circuit 6 notifies the host control circuit 9 accordingly. When the host control circuit 9 receives the notification that the bypass switch SW1 or the bypass switch SW2 has an open failure, for example, the host control circuit 9 displays a message on the display 10 that the bypass switch SW1 or the bypass switch SW2 has an open failure. Or a sound indicating that the bypass switch SW1 or the bypass switch SW2 has an open failure is output from the speaker 11.
- FIG. 2 is a flowchart showing an operation example of the control circuit 6 at the time of determining an open failure of the bypass switch SW1 or the bypass switch SW2.
- the control circuit 6 determines the difference between the input terminal potential Vin of the bypass circuit 3 and the output terminal potential Vout of the bypass circuit 3 as the input / output potential difference V11 (first This is detected as an input / output potential difference (S101).
- control circuit 6 detects the difference between the potential Vin and the potential Vout as the input / output potential difference V12 (second input / output potential difference) when the bypass switch SW1 is always turned on and the bypass switch SW2 is always turned off. (S102).
- the control circuit 6 detects the difference between the potential Vin and the potential Vout as the input / output potential difference V13 (third input / output potential difference) (S103).
- control circuit 6 subtracts the input / output potential difference V11 that is the reference potential from the input / output potential difference V12, that is, the difference between the input / output potential difference V11 and the input / output potential difference V12 is equal to or greater than a threshold value Vth1 (first threshold value). It is determined whether or not there is (S104).
- the control circuit 6 determines that the difference between the input / output potential difference V11 and the input / output potential difference V12 is equal to or greater than the threshold value Vth1 (S104: YES)
- the control circuit 6 determines that the bypass switch SW1 has an open failure (S105).
- control circuit 6 determines that the difference between the input / output potential difference V11 and the input / output potential difference V12 is not equal to or greater than the threshold value Vth1 (S104: NO), the control circuit 6 determines that the bypass switch SW1 is not open and has a bypass switch described later. The operation proceeds to the SW2 open failure judgment operation (S109 to S114).
- the control circuit 6 determines that the difference between the input / output potential difference V11 and the input / output potential difference V13 is equal to or less than the threshold value Vth2 (S106: YES), the input / output potential difference V11 is not changed because the input / output potential difference V11 has not changed.
- the determination result of the open failure of the bypass switch SW1 in S105 is validated (S107).
- the control circuit 6 notifies the host control circuit 9 that, for example, the bypass switch SW1 has an open failure.
- the control circuit 6 determines that the difference between the input / output potential difference V11 and the input / output potential difference V13 is not less than or equal to the threshold value Vth2 (S106: NO), the input / output potential difference V11 has fluctuated, so the input / output potential difference V11 is erroneously detected. As a result, the determination result of the open failure of the bypass switch SW1 in S105 is invalidated (S108). For example, when the input / output potential difference V11 is reduced due to the voltage fluctuation of the battery B and the difference between the input / output potential difference V11 and the input / output potential difference V12 is equal to or greater than the threshold value Vth1, the bypass switch SW1 does not have an open failure.
- the control circuit 6 assumes that the input / output potential difference V11 is erroneously detected.
- the determination result of the open failure of the bypass switch SW1 is invalidated.
- the control circuit 6 may not perform the operation of determining an open failure of the bypass switch SW2 (S109 to S114) described later.
- control circuit 6 detects the difference between the potential Vin and the potential Vout when the bypass switch SW1 is always turned off and the bypass switch SW2 is always turned on as an input / output potential difference V14 (fourth input / output potential difference). (S109).
- the control circuit 6 subtracts the input / output potential difference V13, which is the reference potential, from the input / output potential difference V14, that is, the difference between the input / output potential difference V13 and the input / output potential difference V14 is greater than or equal to a threshold Vth3 (third threshold). It is determined whether or not there is (S110).
- the threshold value Vth3 may be the same value as or different from the threshold value Vth1.
- the control circuit 6 determines that the difference between the input / output potential difference V13 and the input / output potential difference V14 is equal to or greater than the threshold value Vth3 (S110: YES)
- the control circuit 6 determines that the bypass switch SW2 has an open failure, and the bypass switch A difference between the potential Vin and the potential Vout when the SW1 and SW2 are always turned on is detected as an input / output potential difference V15 (fifth input / output potential difference) (S111).
- the control circuit 6 determines whether the absolute value of the difference between the input / output potential difference V13 and the input / output potential difference V15, that is, the difference between the input / output potential difference V13 and the input / output potential difference V15 is less than or equal to a threshold Vth4 (fourth threshold). It is determined whether or not (S112).
- the threshold value Vth4 may be the same value as or different from the threshold value Vth2.
- the control circuit 6 determines that the difference between the input / output potential difference V13 and the input / output potential difference V15 is equal to or less than the threshold value Vth4 (S112: YES), the input / output potential difference V13 is not changed because the input / output potential difference V13 has not changed. As a result, the determination result of the open failure of the bypass switch SW2 is validated (S113). At this time, the control circuit 6 notifies the host control circuit 9 that, for example, the bypass switch SW2 has an open failure.
- the control circuit 6 determines that the difference between the input / output potential difference V13 and the input / output potential difference V15 is not less than or equal to the threshold value Vth4 (S112: NO), the input / output potential difference V13 has fluctuated, so the input / output potential difference V13 is erroneously detected. As a result, the determination result of the open failure of the bypass switch SW2 is invalidated (S114). For example, in the case where the input / output potential difference V13 is reduced due to the voltage fluctuation of the battery B and the difference between the input / output potential difference V13 and the input / output potential difference V14 is equal to or greater than the threshold value Vth3, the bypass switch SW2 does not have an open failure.
- the control circuit 6 assumes that the input / output potential difference V13 is erroneously detected.
- the judgment result of the open failure of the bypass switch SW2 is invalidated. As a result, it is possible to reduce the determination that the bypass switch SW2 has an open failure even though the bypass switch SW2 has not had an open failure.
- FIG. 3 is a flowchart showing another example of the operation of the control circuit 6 at the time of determining an open failure of the bypass switch SW1 or the bypass switch SW2.
- control circuit 6 detects the difference between the potential Vin and the potential Vout when the bypass switches SW1 and SW2 are always on as the input / output potential difference V21 (first input / output potential difference) (S201).
- control circuit 6 detects the difference between the potential Vin and the potential Vout when the bypass switch SW1 is always turned on and the bypass switch SW2 is always turned off as an input / output potential difference V22 (second input / output potential difference). (S202).
- control circuit 6 subtracts the input / output potential difference V21, which is the reference potential, from the input / output potential difference V22, that is, the difference between the input / output potential difference V21 and the input / output potential difference V22 is greater than or equal to a threshold value Vth1 (first threshold value). It is determined whether or not there is (S203).
- the control circuit 6 determines that the difference between the input / output potential difference V21 and the input / output potential difference V22 is equal to or greater than the threshold value Vth1 (S203: YES)
- the control circuit 6 determines that the bypass switch SW1 has an open failure, and the bypass switch A difference between the potential Vin and the potential Vout when the SW1 and SW2 are always turned on is detected as an input / output potential difference V23 (third input / output potential difference) (S204).
- control circuit 6 determines that the difference between the input / output potential difference V21 and the input / output potential difference V22 is not equal to or greater than the threshold value Vth1 (S203: NO), the control circuit 6 determines that the bypass switch SW1 is not open and has a bypass switch described later. The operation proceeds to the SW2 open failure judgment operation (S208 to S214).
- control circuit 6 determines whether the absolute value of the difference between the input / output potential difference V21 and the input / output potential difference V23, that is, the difference between the input / output potential difference V21 and the input / output potential difference V23 is equal to or less than a threshold value Vth2 (second threshold value). It is determined whether or not (S205).
- the control circuit 6 determines that the difference between the input / output potential difference V21 and the input / output potential difference V23 is equal to or less than the threshold value Vth2 (S205: YES), the input / output potential difference V21 is not changed, so the input / output potential difference V21 is not changed. As a result, the judgment result of the open failure of the bypass switch SW1 is validated (S206). At this time, the control circuit 6 notifies the host control circuit 9 that, for example, the bypass switch SW1 has an open failure.
- the control circuit 6 determines that the difference between the input / output potential difference V21 and the input / output potential difference V23 is not less than or equal to the threshold value Vth2 (S205: NO), the input / output potential difference V21 has fluctuated, so the input / output potential difference V21 is erroneously detected. As a result, the judgment result of the open failure of the bypass switch SW1 is invalidated (S207). For example, in the case where the input / output potential difference V21 becomes small due to voltage fluctuation of the battery B and the difference between the input / output potential difference V21 and the input / output potential difference V22 is equal to or greater than the threshold value Vth1, the bypass switch SW1 is not open-failed.
- the control circuit 6 assumes that the input / output potential difference V21 is erroneously detected.
- the determination result of the open failure of the bypass switch SW1 is invalidated.
- the control circuit 6 may not perform the operation of determining an open failure of the bypass switch SW2, which will be described later (S208 to S214).
- control circuit 6 detects the difference between the potential Vin and the potential Vout when the bypass switches SW1 and SW2 are always turned on as the input / output potential difference V24 (fourth input / output potential difference) (S208).
- control circuit 6 detects the difference between the potential Vin and the potential Vout when the bypass switch SW1 is always turned off and the bypass switch SW2 is always turned on as an input / output potential difference V25 (fifth input / output potential difference). (S209).
- the control circuit 6 subtracts the input / output potential difference V24, which is the reference potential, from the input / output potential difference V25, that is, the difference between the input / output potential difference V24 and the input / output potential difference V25 is greater than or equal to a threshold value Vth3 (third threshold value). It is determined whether or not there is (S210).
- the threshold value Vth3 may be the same value as or different from the threshold value Vth1.
- the control circuit 6 determines that the difference between the input / output potential difference V24 and the input / output potential difference V25 is equal to or greater than the threshold value Vth3 (S210: YES)
- the control circuit 6 determines that the bypass switch SW2 has an open failure, and the bypass switch A difference between the potential Vin and the potential Vout when the SW1 and SW2 are always turned on is detected as an input / output potential difference V26 (sixth input / output potential difference) (S211).
- the control circuit 6 determines whether the absolute value of the difference between the input / output potential difference V24 and the input / output potential difference V26, that is, the difference between the input / output potential difference V24 and the input / output potential difference V26 is less than or equal to a threshold value Vth4 (fourth threshold value). It is determined whether or not (S212).
- the threshold value Vth4 may be the same value as or different from the threshold value Vth2.
- the control circuit 6 determines that the difference between the input / output potential difference V24 and the input / output potential difference V26 is equal to or smaller than the threshold Vth4 (S212: YES), the input / output potential difference V24 is not changed because the input / output potential difference V24 has not changed. As a result, the determination result of the open failure of the bypass switch SW2 is validated (S213). At this time, the control circuit 6 notifies the host control circuit 9 that, for example, the bypass switch SW2 has an open failure.
- the control circuit 6 determines that the difference between the input / output potential difference V24 and the input / output potential difference V26 is not less than or equal to the threshold value Vth4 (S212: NO), the input / output potential difference V24 has fluctuated, so the input / output potential difference V24 is erroneously detected. As a result, the determination result of the open failure of the bypass switch SW2 is invalidated (S214). For example, in the case where the input / output potential difference V24 is reduced due to the voltage fluctuation of the battery B and the difference between the input / output potential difference V24 and the input / output potential difference V25 is equal to or greater than the threshold value Vth3, the bypass switch SW2 does not have an open failure.
- the control circuit 6 assumes that the input / output potential difference V24 has been erroneously detected.
- the judgment result of the open failure of the bypass switch SW2 is invalidated. As a result, it is possible to reduce the determination that the bypass switch SW2 has an open failure even though the bypass switch SW2 has not had an open failure.
- S101 to S108 shown in FIG. 2 and S201 to S207 shown in FIG. 3 correspond to the open failure determination operation of the bypass switch SW1, respectively.
- S109 to S114 shown in FIG. 2 and S208 to S214 shown in FIG. Each corresponds to an open failure determination operation of the bypass switch SW2, but S109 to S114 shown in FIG. 2 and S208 to S214 shown in FIG. 3 may be interchanged. That is, S208 to S214 shown in FIG. 3 may be performed after S101 to S108 shown in FIG. Further, after performing S201 to S207 shown in FIG. 3, S109 to S114 shown in FIG. 2 may be performed. In this case, the input / output potential difference V13 is replaced with the input / output potential difference V23 in S110 and S112.
- the power supply device 1 of the present embodiment includes the bypass switches SW1 and SW2, even if one bypass switch becomes unusable due to an open failure of the bypass switch SW1 or the bypass switch SW2, idling is performed.
- the voltage of the battery B can be continuously output to the load Lo using the other bypass switch. That is, it is possible to continuously output a stable voltage to the load Lo mounted on the idle stop vehicle.
- the voltage of the battery B can be continuously output to the load Lo using the other bypass switch, so that a current always flows from the battery B to the booster circuit 2. It is possible to prevent the coil L, the rectifying diode D, and the like of the booster circuit 2 from being damaged by their own heat generation.
- the load Lo to an electronic device that is desired to prevent the input voltage from falling outside the specified range, for example, an electronic device related to the basic performance of the vehicle such as running, turning, and stopping.
- an electronic device related to the basic performance of the vehicle such as running, turning, and stopping.
- the elements constituting the booster circuit 2 for example, the coil L, the rectifier diode D, etc. It is not necessary to use a large-capacity element, and an increase in cost can be suppressed.
- the power supply device 1 of the present embodiment it is possible to determine that the bypass switch SW1 or the bypass switch SW2 has an open failure and output the fact from the display 10 or the speaker 11, so that the bypass switch SW1 or The user can immediately recognize that the bypass switch SW2 has an open failure. Therefore, it is possible to prompt the user to replace the bypass switches SW1 and SW2 or the bypass circuit 3, and the power supply device 1 can be recovered early. Thereby, a stable voltage can be continuously output to the load Lo.
- the power supply device 1 of the present embodiment uses the reference potential (input / output potential differences V11, V13, V21, V24) used in open failure determination as the input potential Vin of the bypass circuit 3, that is, the voltage of the battery B.
- the open failure determination result is invalidated. Therefore, it is effective to be applied in an environment where the voltage of the battery B varies.
- the power supply device 1 of the present embodiment since it is determined whether or not the determination result of the open failure is valid, it is possible to reduce erroneous determination that the open failure has occurred even though the open failure has not occurred. And a more stable voltage can be continuously output to the load Lo.
- a rectifying switching element for example, a MOSFET or a diode
- the control circuit 6 always turns off the boost switch SW and the rectifying switching element in the “bypass mode”, and alternately switches the boost switch SW and the rectifying switching element in the “boost mode”. Turn on and off. Further, when configured in this manner, energy loss due to the rectifying element can be reduced as compared with the case where the rectifying diode D is employed as the rectifying element in the booster circuit 2.
- the two bypass switches SW1 and SW2 are each connected in parallel to the booster circuit 2, but three or more bypass switches are connected in parallel to the booster circuit 2, respectively.
- the control circuit 6 always turns on three or more bypass switches in the “bypass mode”, and always turns off three or more bypass switches in the “boost mode”. Further, the control circuit 6 performs open failure determination of three or more bypass switches in order as in the operation examples shown in FIGS.
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- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Dc-Dc Converters (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
2 昇圧回路
3 バイパス回路
4 ドライブ回路
5 制御回路用電源
6 制御回路
7 ドライブ回路
8 ドライブ回路
9 上位制御回路
10 ディスプレイ
11 スピーカ
Claims (5)
- 昇圧回路と、
前記昇圧回路にそれぞれ並列接続される第1及び第2バイパススイッチを有するバイパス回路と、
アイドルストップ後のエンジン再始動時以外の通常時、前記第1及び第2バイパススイッチをオンさせるとともに、前記昇圧回路を停止させ、アイドルストップ後のエンジン再始動時、前記第1及び第2バイパススイッチをオフさせるとともに、前記昇圧回路を駆動させる制御回路と、
を備え、
前記制御回路は、前記アイドルストップ後のエンジン再始動時以外の通常時、前記第1及び第2バイパススイッチをオンさせているときの前記バイパス回路の第1入出力電位差、前記第1バイパススイッチをオン、前記第2バイパススイッチをオフさせているときの前記バイパス回路の第2入出力電位差、及び、前記第1及び第2バイパススイッチを再度オンさせているときの前記バイパス回路の第3入出力電位差を検出し、前記第1及び第2入出力電位差の差が第1閾値以上になり、前記第1バイパススイッチがオープン故障していると判断すると、前記第1及び第3入出力電位差の差が第2閾値以下であるか否かを判断し、前記第1及び第3入出力電位差の差が前記第2閾値以下であると判断した場合、前記第1バイパススイッチのオープン故障の判断を有効とする
ことを特徴とする電源装置。 - 昇圧回路と、
前記昇圧回路にそれぞれ並列接続される第1及び第2バイパススイッチを有するバイパス回路と、
アイドルストップ後のエンジン再始動時以外の通常時、前記第1及び第2バイパススイッチをオンさせるとともに、前記昇圧回路を停止させ、アイドルストップ後のエンジン再始動時、前記第1及び第2バイパススイッチをオフさせるとともに、前記昇圧回路を駆動させる制御回路と、
を備え、
前記制御回路は、前記アイドルストップ後のエンジン再始動時以外の通常時、前記第1及び第2バイパススイッチをオンさせているときの前記バイパス回路の第1入出力電位差と、前記第1バイパススイッチをオン、前記第2バイパススイッチをオフさせているときの前記バイパス回路の第2入出力電位差との差が第1閾値以上になり、前記第1バイパススイッチがオープン故障していると判断すると、前記第1入出力電位差と、前記第1及び第2バイパススイッチを再度オンさせているときの前記バイパス回路の第3入出力電位差との差が第2閾値以下であるか否かを判断し、前記第1及び第3入出力電位差の差が前記第2閾値以下であると判断した場合、前記第1バイパススイッチのオープン故障の判断を有効とする
ことを特徴とする電源装置。 - 請求項1又は請求項2に記載の電源装置であって、
前記制御回路は、前記第1及び第3入出力電位差の差が前記第2閾値以下でないと判断した場合、前記第1バイパススイッチのオープン故障の判断を無効とする
ことを特徴とする電源装置。 - 請求項1~3の何れか1項に記載の電源装置であって、
前記制御回路は、前記アイドルストップ後のエンジン再始動時以外の通常時、前記第1バイパススイッチをオフ、前記第2バイパススイッチをオンさせているときの前記バイパス回路の第4入出力電位差と、前記第3入出力電位差との差が第3閾値以上になり、前記第2バイパススイッチがオープン故障していると判断すると、前記第3入出力電位差と、前記第1及び第2バイパススイッチを再度オンさせているときの前記バイパス回路の第5入出力電位差との差が第4閾値以下であるか否かを判断し、前記第3及び第5入出力電位差の差が前記第4閾値以下であると判断した場合、前記第2バイパススイッチのオープン故障の判断を有効とする
ことを特徴とする電源装置。 - 請求項1~3の何れか1項に記載の電源装置であって、
前記制御回路は、前記アイドルストップ後のエンジン再始動時以外の通常時、前記第1及び第2バイパススイッチを再度オンさせているときの前記バイパス回路の第4入出力電位差と、前記第1バイパススイッチをオフ、前記第2バイパススイッチをオンさせているときの前記バイパス回路の第5入出力電位差との差が第3閾値以上になり、前記第2バイパススイッチがオープン故障していると判断すると、前記第4入出力電位差と、前記第1及び第2バイパススイッチを再度オンさせているときの前記バイパス回路の第6入出力電位差との差が第4閾値以下であるか否かを判断し、前記第4及び第6入出力電位差の差が前記第4閾値以下であると判断した場合、前記第2バイパススイッチのオープン故障の判断を有効とする
ことを特徴とする電源装置。
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CN201480050419.6A CN105531156B (zh) | 2013-09-19 | 2014-05-22 | 电源装置 |
US14/916,252 US9931945B2 (en) | 2013-09-19 | 2014-05-22 | Power supply device |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016103721A1 (ja) * | 2014-12-24 | 2016-06-30 | 株式会社Gsユアサ | 電源保護装置、電源装置及びスイッチ故障診断方法 |
CN106627435A (zh) * | 2016-12-06 | 2017-05-10 | 上汽通用汽车有限公司 | 一种提供稳定电压的方法和装置 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6152241B2 (ja) * | 2014-04-23 | 2017-06-21 | レノボ・シンガポール・プライベート・リミテッド | 電力システム、携帯式電子機器および電力の供給方法 |
JP6891421B2 (ja) * | 2016-08-05 | 2021-06-18 | 株式会社Gsユアサ | エンジン始動用の蓄電装置、エンジン始動用の蓄電装置の制御方法、車両 |
JP7042425B2 (ja) * | 2018-12-11 | 2022-03-28 | 株式会社オートネットワーク技術研究所 | 制御装置及び故障判定方法 |
JP7342804B2 (ja) | 2020-06-19 | 2023-09-12 | 株式会社デンソー | 電子制御装置 |
WO2024058805A1 (en) * | 2022-09-13 | 2024-03-21 | Google Llc | Alternating-current power harmonic-based circuit state detection |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005112250A (ja) * | 2003-10-09 | 2005-04-28 | Toyota Motor Corp | 電源回路および車両 |
JP2008131007A (ja) * | 2006-11-24 | 2008-06-05 | Koha Co Ltd | 発光回路及びこれを備えた照明装置 |
JP2011199079A (ja) * | 2010-03-20 | 2011-10-06 | Fujikura Ltd | 励起光源装置 |
WO2012144432A1 (ja) * | 2011-04-19 | 2012-10-26 | 株式会社村田製作所 | アンチヒューズ回路および発光回路 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7938096B2 (en) * | 2005-05-18 | 2011-05-10 | Fujitsu Ten Limited | Engine start control device and method |
JP4930263B2 (ja) * | 2006-12-25 | 2012-05-16 | パナソニック株式会社 | 蓄電装置 |
PT2354532T (pt) * | 2010-01-27 | 2018-03-13 | Flex Automotive Gmbh | Disposição paralela de comutadores |
JP2011223755A (ja) * | 2010-04-09 | 2011-11-04 | Honda Motor Co Ltd | Dc−dcコンバータ |
US8390261B2 (en) * | 2010-05-21 | 2013-03-05 | Infineon Technologies Austria Ag | Maximum power point tracker bypass |
WO2012008124A1 (ja) * | 2010-07-15 | 2012-01-19 | パナソニック株式会社 | 車両用電源装置 |
JP5405555B2 (ja) * | 2011-12-27 | 2014-02-05 | オムロンオートモーティブエレクトロニクス株式会社 | 電源装置 |
JP2013209017A (ja) * | 2012-03-30 | 2013-10-10 | Toyota Industries Corp | 電源回路 |
-
2013
- 2013-09-19 JP JP2013194355A patent/JP6209917B2/ja active Active
-
2014
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005112250A (ja) * | 2003-10-09 | 2005-04-28 | Toyota Motor Corp | 電源回路および車両 |
JP2008131007A (ja) * | 2006-11-24 | 2008-06-05 | Koha Co Ltd | 発光回路及びこれを備えた照明装置 |
JP2011199079A (ja) * | 2010-03-20 | 2011-10-06 | Fujikura Ltd | 励起光源装置 |
WO2012144432A1 (ja) * | 2011-04-19 | 2012-10-26 | 株式会社村田製作所 | アンチヒューズ回路および発光回路 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016103721A1 (ja) * | 2014-12-24 | 2016-06-30 | 株式会社Gsユアサ | 電源保護装置、電源装置及びスイッチ故障診断方法 |
US10338141B2 (en) | 2014-12-24 | 2019-07-02 | Gs Yuasa International Ltd. | Power supply protective device, power supply device and switch failure diagnosing method |
US10690724B2 (en) | 2014-12-24 | 2020-06-23 | Gs Yuasa International Ltd. | Power supply protective device, power supply device and switch failure diagnosing method |
CN106627435A (zh) * | 2016-12-06 | 2017-05-10 | 上汽通用汽车有限公司 | 一种提供稳定电压的方法和装置 |
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US20160193929A1 (en) | 2016-07-07 |
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US9931945B2 (en) | 2018-04-03 |
CN105531156B (zh) | 2017-09-22 |
JP2015058826A (ja) | 2015-03-30 |
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