WO2010032320A1 - 車両の異常検出装置および車両 - Google Patents
車両の異常検出装置および車両 Download PDFInfo
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- WO2010032320A1 WO2010032320A1 PCT/JP2008/067063 JP2008067063W WO2010032320A1 WO 2010032320 A1 WO2010032320 A1 WO 2010032320A1 JP 2008067063 W JP2008067063 W JP 2008067063W WO 2010032320 A1 WO2010032320 A1 WO 2010032320A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
- B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/445—Differential gearing distribution type
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- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
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- 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
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
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- 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
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
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- 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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/40—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for controlling a combination of batteries and fuel cells
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/244—Charge state
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/24—Energy storage means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- 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
- Y02T10/64—Electric machine technologies in electromobility
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- 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
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- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
Definitions
- the present invention relates to an abnormality detection device for a vehicle and a vehicle, and more particularly to a technique for detecting an abnormality in a charging system that charges an electric storage device mounted on the vehicle by supplying electric power from a power source external to the vehicle. .
- a hybrid vehicle is a vehicle equipped with an internal combustion engine as a power source in addition to an electric motor
- a fuel cell vehicle is a vehicle equipped with a fuel cell as a DC power source for driving the vehicle.
- a vehicle that can charge a power storage device for driving a vehicle mounted on a vehicle from a power source of a general household is known. For example, by connecting a power outlet provided in a house and a charging inlet provided in a vehicle with a charging cable, electric power is supplied from the power supply of a general household to the power storage device.
- a vehicle capable of charging a power storage device mounted on the vehicle from a power source provided outside the vehicle is also referred to as a “plug-in vehicle”.
- Patent Document 1 discloses a charging device for charging a battery of an electric vehicle using an external power source.
- an earth leakage breaker is provided between an electric vehicle and an outlet of an external AC power source.
- the earth leakage breaker is provided with a hall sensor, a detection circuit, and an earth leakage relay for detecting the earth leakage.
- the earth leakage breaker is provided with an earth leakage test relay and an earth leakage resistance for forcibly short-circuiting the charging circuit prior to charging. Whether or not the leakage relay is cut off is confirmed by forcing a short circuit by closing the leakage test relay during charging. After confirming that the interruption relay has been interrupted, the charging relay is closed and charging of the battery is started.
- JP-A-11-205909 JP-A-11-205909
- Patent Document 1 describes a configuration in which a leakage breaker is provided in a coupler that connects a vehicle and a power source.
- the electric leakage generated in the charging circuit on the vehicle side cannot be detected accurately.
- the rated current of the coupler is larger than the rated current of the vehicle-side charging circuit (for example, the power line)
- the value of the current flowing through the coupler is the coupler even if the vehicle-side charging circuit is leaked. It may be less than the rated current value. In this case, the leakage may not be detected by the leakage breaker in the coupler.
- An object of the present invention is to provide a vehicle abnormality detection device capable of accurately detecting an abnormality in a charging circuit mounted on a vehicle for charging a power storage device for driving the vehicle.
- the present invention is a vehicle abnormality detection device.
- the vehicle includes a power storage device for driving the vehicle, a charging inlet for receiving power supplied from a power source provided outside the vehicle, a charging circuit for charging the power storage device with power from the power source, a charging inlet, And at least one power line connecting the charging circuit.
- the abnormality detection device includes a voltage application circuit for applying a test voltage to at least one power line, and a short-circuit detection unit.
- the short-circuit detecting unit is at least 1 when the voltage application circuit applies a test voltage to at least one power line, but the voltage value of at least one power line is out of a predetermined normal range including the value of the test voltage. Detects a short circuit between two power lines.
- the short circuit detection unit identifies a short circuit mode corresponding to a short circuit detected from a plurality of short circuit modes based on the voltage value.
- the voltage application circuit is connected to the first node to which the first voltage is applied, the second node to which the second voltage lower than the first voltage is applied, and the first and second nodes.
- a voltage source that generates an intermediate voltage between the first and second voltages as a test voltage.
- the plurality of short-circuit modes include a first mode corresponding to a state where at least one power line is short-circuited to the first node, and a second mode corresponding to a state where at least one power line is short-circuited to the second node. Including.
- the short-circuit detection unit sets the corresponding short-circuit mode to the first If the voltage value of at least one power line is lower than the lower limit value of the normal range and is within the second range including the value of the second voltage, the corresponding short-circuit mode is set to the second mode. Specify the mode.
- the at least one power line includes a first power line and a second power line.
- the voltage source applies first and second test voltages different from each other as test voltages to the first and second power lines, respectively.
- the plurality of short-circuit modes further include a third mode corresponding to a state in which the first power line is short-circuited to the second power line.
- the short-circuit detection unit The corresponding short-circuit mode is identified as the third mode.
- the voltage source includes a first resistance circuit, a second resistance circuit, a first connection portion, and a second connection portion.
- the first resistance circuit is electrically connected between the first node and at least one power line.
- the second resistance circuit is electrically connected between the second node and at least one power line.
- the first connection unit cuts off a state in which at least one power line is electrically connected to the first node via the first resistance circuit and an electrical connection between the at least one power line and the first node. The state can be switched.
- the second connection unit cuts off a state in which at least one power line is electrically connected to the second node via the second resistance circuit and an electrical connection between the at least one power line and the second node. The state can be switched.
- the short circuit detection unit acquires the voltage value of at least one power line by setting both the first and second connection units to the connected state.
- the charging inlet is connected to a power source by a coupler.
- the coupler includes a cutoff circuit for cutting off a power transmission path from the power source to the charging inlet.
- the short-circuit detection unit detects that the charging inlet is connected to the coupler, the short-circuit detection unit controls the cutoff circuit so that the transmission path is cut off, and sets both the first and second connection units to the connected state. To do.
- a vehicle abnormality detection device includes a power storage device for driving the vehicle, a charging inlet for receiving power supplied from a power source provided outside the vehicle, a charging circuit for charging the power storage device with power from the power source, a charging inlet, First and second power lines connecting the charging circuit.
- the abnormality detection device includes a first node to which a first voltage is applied, a second node to which a second voltage lower than the first voltage is applied, and between the first node and the first power line.
- the short-circuit detection unit includes a first voltage value of the first power line and a first voltage value of the second power line out of a plurality of ranges obtained by dividing the voltage range from the first voltage to the second voltage in advance. By identifying the range to which each of the two voltage values belongs, the presence / absence of a short circuit in each of the first and second power lines is detected.
- the first resistance voltage division ratio determined by the resistance values of the first and second resistance circuits is larger than the second resistance voltage division ratio determined by the resistance values of the third and fourth resistance circuits.
- the plurality of ranges include a first normal range, a second normal range, a first abnormal range, a second abnormal range, and a third abnormal range.
- the first normal range is set as a range including values determined by the first and second voltages and the first resistance voltage division ratio.
- the second normal range is set as a range including values determined by the first and second voltages and the second resistance voltage dividing ratio.
- the first abnormal range is set as a range from the upper limit value of the first normal range to the value of the first voltage, and at least one of the first and second power lines is short-circuited to the first node.
- the second abnormal range is set as a range from the value of the second voltage to the lower limit value of the second normal range, and at least one power line in a state where at least one power line is short-circuited to the second node. Contains the corresponding voltage value.
- the third abnormal range is set as a range between the first and second normal ranges, and the first and second voltage values in the case where the first power line is short-circuited to the second power line. Including.
- a vehicle includes a power storage device for driving the vehicle, a charging inlet for receiving power supplied from a power source provided outside the vehicle, and power from the power source.
- a charging circuit for charging the power storage device at least one power line connecting the charging inlet and the charging circuit, a voltage applying circuit for applying a test voltage to the at least one power line, and a short-circuit detecting unit.
- the short-circuit detecting unit is at least 1 when the voltage application circuit applies a test voltage to at least one power line, but the voltage value of at least one power line is out of a predetermined normal range including the value of the test voltage. Detects a short circuit between two power lines.
- the short circuit detection unit identifies a short circuit mode corresponding to a short circuit detected from a plurality of short circuit modes based on the voltage value.
- the voltage application circuit is connected to the first node to which the first voltage is applied, the second node to which the second voltage lower than the first voltage is applied, and the first and second nodes.
- a voltage source that generates an intermediate voltage between the first and second voltages as a test voltage.
- the plurality of short-circuit modes include a first mode corresponding to a state where at least one power line is short-circuited to the first node, and a second mode corresponding to a state where at least one power line is short-circuited to the second node. Including.
- the short-circuit detection unit sets the corresponding short-circuit mode to the first If the voltage value of at least one power line is lower than the lower limit value of the normal range and is within the second range including the value of the second voltage, the corresponding short-circuit mode is set to the second mode. Specify the mode.
- the at least one power line includes a first power line and a second power line.
- the voltage source applies first and second test voltages different from each other as test voltages to the first and second power lines, respectively.
- the plurality of short-circuit modes further include a third mode corresponding to a state in which the first power line is short-circuited to the second power line.
- the short-circuit detection unit The corresponding short-circuit mode is identified as the third mode.
- the voltage source includes a first resistance circuit, a second resistance circuit, a first connection portion, and a second connection portion.
- the first resistance circuit is electrically connected between the first node and at least one power line.
- the second resistance circuit is electrically connected between the second node and at least one power line.
- the first connection unit cuts off a state in which at least one power line is electrically connected to the first node via the first resistance circuit and an electrical connection between the at least one power line and the first node. The state can be switched.
- the second connection unit cuts off a state in which at least one power line is electrically connected to the second node via the second resistance circuit and an electrical connection between the at least one power line and the second node. The state can be switched.
- the short circuit detection unit acquires the voltage value of at least one power line by setting both the first and second connection units to the connected state.
- the charging inlet is connected to a power source by a coupler.
- the coupler includes a cutoff circuit for cutting off a power transmission path from the power source to the charging inlet.
- the short-circuit detection unit detects that the charging inlet is connected to the coupler, the short-circuit detection unit controls the cutoff circuit so that the transmission path is cut off, and sets both the first and second connection units to the connected state. To do.
- a vehicle includes a power storage device for driving the vehicle, a charging inlet for receiving power supplied from a power source provided outside the vehicle, and power from the power source.
- a charging circuit for charging the power storage device ; first and second power lines connecting the charging inlet and the charging circuit; a first node to which the first voltage is applied; and a second lower than the first voltage.
- the short-circuit detection unit includes a first voltage value of the first power line and a first voltage value of the second power line out of a plurality of ranges obtained by dividing the voltage range from the first voltage to the second voltage in advance. By identifying the range to which each of the two voltage values belongs, the presence / absence of a short circuit in each of the first and second power lines is detected.
- the first resistance voltage division ratio determined by the resistance values of the first and second resistance circuits is larger than the second resistance voltage division ratio determined by the resistance values of the third and fourth resistance circuits.
- the plurality of ranges include a first normal range, a second normal range, a first abnormal range, a second abnormal range, and a third abnormal range.
- the first normal range is set as a range including values determined by the first and second voltages and the first resistance voltage division ratio.
- the second normal range is set as a range including values determined by the first and second voltages and the second resistance voltage dividing ratio.
- the first abnormal range is set as a range from the upper limit value of the first normal range to the value of the first voltage, and at least one of the first and second power lines is short-circuited to the first node. A voltage value corresponding to at least one of the power lines in the current state.
- the second abnormal range is set as a range from the value of the second voltage to the lower limit value of the second normal range, and at least one power line in a state where at least one power line is short-circuited to the second node. Contains the corresponding voltage value.
- the third abnormal range is set as a range between the first and second normal ranges, and the first and second voltage values in the case where the first power line is short-circuited to the second power line. Including.
- the present invention it is possible to accurately detect an abnormality in a charging circuit mounted on a vehicle in order to charge a power storage device for driving the vehicle.
- FIG. 1 is an overall block diagram of a plug-in hybrid vehicle shown as an example of a vehicle to which a vehicle abnormality detection device according to an embodiment of the present invention is applied. It is a figure which shows the alignment chart of a power split device. It is a whole block diagram of the electrical system of the plug-in hybrid vehicle shown in FIG. It is the figure which demonstrated the part regarding the charging mechanism of the electric system shown in FIG. 3 in detail.
- FIG. 5 is a diagram showing a waveform of a pilot signal CPLT generated by a control pilot circuit 334 shown in FIG. It is a figure for demonstrating in detail the charging mechanism shown in FIG. 6 is a timing chart of pilot signals and switches at the start of charging.
- 3 is a circuit diagram showing an embodiment of a voltage application circuit 293.
- FIG. 15 is a diagram showing a zero-phase equivalent circuit of first and second inverters 210 and 220 and first and second MGs 110 and 120 shown in FIG. 14.
- FIG. 1 is an overall block diagram of a plug-in hybrid vehicle shown as an example of a vehicle to which a vehicle abnormality detection device according to an embodiment of the present invention is applied.
- this plug-in hybrid vehicle includes an engine 100, a first MG (Motor Generator) 110, a second MG 120, a power split mechanism 130, a speed reducer 140, a power storage device 150, and drive wheels 160. And an ECU (Electronic Control Unit) 170.
- Engine 100, first MG 110 and second MG 120 are coupled to power split mechanism 130.
- This plug-in hybrid vehicle travels by driving force from at least one of engine 100 and second MG 120.
- the power transmission path generated by engine 100 is divided into two paths by power split mechanism 130. That is, one of the paths divided into two is a path for transmitting power to the drive wheel 160 via the speed reducer 140, and the other is a path for transmitting power to the first MG 110.
- First MG 110 is an AC rotating electric machine, for example, a three-phase AC synchronous motor including a U-phase coil, a V-phase coil, and a W-phase coil.
- First MG 110 generates power using the power of engine 100 divided by power split device 130.
- SOC State Of Charge
- engine 100 is started and power is generated by first MG 110.
- the electric power generated by first MG 110 is converted from alternating current to direct current by an inverter (described later), and the voltage is adjusted by a converter (described later) and stored in power storage device 150.
- Second MG 120 is an AC rotating electric machine, for example, a three-phase AC synchronous motor including a U-phase coil, a V-phase coil, and a W-phase coil. Second MG 120 generates driving force using at least one of the electric power stored in power storage device 150 and the electric power generated by first MG 110. Then, the driving force generated by the second MG 120 is transmitted to the driving wheel 160 via the speed reducer 140. As a result, second MG 120 assists engine 100 or causes the vehicle to travel by the driving force generated by itself. In FIG. 1, the driving wheel 160 is shown as a front wheel, but the rear wheel may be driven by the second MG 120 instead of or together with the front wheel.
- second MG 120 When the vehicle is braked, the second MG 120 is driven by the drive wheels 160 via the speed reducer 140.
- second MG 120 not only operates as a generator but also operates as a regenerative brake that converts braking energy into electric power.
- the electric power generated by second MG 120 is stored in power storage device 150.
- the power split mechanism 130 includes a planetary gear including a sun gear, a pinion gear, a carrier, and a ring gear.
- the pinion gear engages with the sun gear and the ring gear.
- the carrier supports the pinion gear so as to be capable of rotating, and is connected to the crankshaft of engine 100.
- the sun gear is connected to the rotation shaft of first MG 110.
- the ring gear is connected to the rotation shaft of second MG 120 and speed reducer 140.
- Engine 100, first MG 110, and second MG 120 are connected via power split mechanism 130 formed of a planetary gear, so that the rotational speeds of engine 100, first MG 110, and second MG 120 are the same as shown in FIG. In the diagram, the relationship is a straight line.
- power storage device 150 is a chargeable / dischargeable DC power supply, and is composed of, for example, a secondary battery such as nickel metal hydride or lithium ion.
- the voltage of power storage device 150 is, for example, about 200V.
- power storage device 150 in addition to the power generated by first MG 110 and second MG 120, power supplied from a power source outside the vehicle is stored as will be described later.
- a large-capacity capacitor can also be used as power storage device 150, and the power generated by first MG 110 and second MG 120 and the power from the power source outside the vehicle can be temporarily stored, and the stored power can be supplied to second MG 120. Any power buffer may be used.
- ECU 170 Engine 100, first MG 110 and second MG 120 are controlled by ECU 170.
- ECU 170 may be constituted by a plurality of ECUs. The configuration of ECU 170 will be described later.
- FIG. 3 is an overall configuration diagram of the electrical system of the plug-in hybrid vehicle shown in FIG. Referring to FIG. 3, this electrical system includes power storage device 150, SMR (System Main Relay) 250, converter 200, first inverter 210, second inverter 220, first MG 110, second MG 120, Relay 260, charging inlet 270, power lines 281 and 282, and charger 290 are provided.
- SMR System Main Relay
- SMR 250 is provided between power storage device 150 and converter 200.
- SMR 250 is a relay for electrically connecting / disconnecting power storage device 150 and the electric system, and is controlled to be turned on / off by ECU 170. That is, SMR 250 is turned on when the vehicle is running and when power storage device 150 is charged by a power supply external to the vehicle, and power storage device 150 is electrically connected to the electrical system. On the other hand, when the vehicle system is stopped, SMR 250 is turned off and power storage device 150 is electrically disconnected from the electric system.
- Converter 200 includes a reactor, two npn transistors, and two diodes.
- Reactor has one end connected to the positive electrode side of power storage device 150 and the other end connected to a connection node of two npn transistors.
- Two npn transistors are connected in series, and a diode is connected in antiparallel to each npn transistor.
- an IGBT Insulated Gate Bipolar Transistor
- a power switching element such as a power MOSFET (Metal Oxide Semiconductor Field-Effect Transistor) may be used.
- converter 200 When power is supplied from power storage device 150 to first MG 110 or second MG 120, converter 200 boosts the power output from power storage device 150 based on a control signal from ECU 170 and supplies the boosted power to first MG 110 or second MG 120. .
- converter 200 is supplied from first MG 110 or second MG 120 based on a control signal from ECU 170 when power storage device 150 is charged by storing power generated by first MG 110 or second MG 120 in power storage device 150. The power is stepped down and output to the power storage device 150.
- First inverter 210 includes a U-phase arm, a V-phase arm, and a W-phase arm.
- the U-phase arm, V-phase arm, and W-phase arm are connected in parallel to each other.
- Each phase arm includes two npn-type transistors connected in series, and a diode is connected in antiparallel to each npn-type transistor.
- the connection point of the two npn-type transistors in each phase arm is connected to the corresponding coil end in the first MG 110 and an end different from the neutral point 112.
- the first inverter 210 converts the DC power supplied from the converter 200 into AC power and supplies the AC power to the first MG 110. In addition, first inverter 210 converts AC power generated by first MG 110 into DC power and supplies it to converter 200.
- the second inverter 220 has the same configuration as the first inverter 210.
- a connection point of two npn transistors in each phase arm of second inverter 220 is connected to a corresponding coil end in second MG 120 and an end different from neutral point 122.
- the second inverter 220 converts the DC power supplied from the converter 200 into AC power and supplies it to the second MG 120.
- Second inverter 220 converts AC power generated by second MG 120 into DC current and supplies it to converter 200.
- Relay 260 is provided between a power line pair connected to the positive electrode and the negative electrode of the power storage device via SMR 250 and charger 290.
- Relay 260 is a relay for electrically connecting / disconnecting the power line pair and charger 290, and is ON / OFF controlled by ECU 170. In other words, when charger 290 is stopped, relay 260 is turned off, so that the power line pair is electrically disconnected from charger 290. On the other hand, when the charger 290 is operated, the relay 260 is turned on, whereby the power line pair is electrically connected to the charger 290.
- the charging inlet 270 is a power interface for receiving charging power from a power source outside the vehicle, and is provided in the vehicle.
- power storage device 150 When power storage device 150 is charged by a power supply outside the vehicle, the power supply outside the vehicle and the vehicle are connected by a coupler. In this case, charging inlet 270 is connected to the connector of the coupler.
- Charger 290 is connected to charging inlet 270 by power lines 281 and 282.
- charger 290 converts charging power supplied from power supply 402 to power for charging power storage device 150 based on a control signal from ECU 170, and supplies power storage device 150. Output.
- ECU 170 generates control signals for driving SMR 250, converter 200, first inverter 210 and second inverter 220, and charger 290, and controls the operation of these devices.
- FIG. 4 is a diagram illustrating in more detail the portion related to the charging mechanism of the electrical system shown in FIG.
- coupler 300 that connects the plug-in hybrid vehicle and the power supply outside the vehicle includes a connector 310, a plug 320, and a CCID (Charging Circuit Interrupt Device) 330.
- CCID Charging Circuit Interrupt Device
- SAE Electric Vehicle Conductive Charge Coupler USA, SAE Standards, SAE International, November 2001
- a standard regarding a control pilot is defined.
- the control pilot sends a square wave signal (hereinafter also referred to as a pilot signal) from the oscillator to the control pilot line, thereby instructing the vehicle that EVSE (Electric Vehicle Supply Equipment) can supply energy (electric power).
- EVSE Electric Vehicle Supply Equipment
- has the function of EVSE is a device that connects an external power supply and a vehicle. For example, when the EVSE plug is connected to a power supply external to the vehicle and the EVSE connector is connected to a connector provided on the vehicle, a pilot signal is output.
- the plug-in vehicle is notified of the current capacity that can be supplied based on the pulse width of the pilot signal.
- the plug-in vehicle detects the pilot signal, it prepares to start charging (such as closing the relay).
- the coupler 300 corresponds to the above EVSE.
- the connector 310 is configured to be insertable into a charging inlet 270 provided in the vehicle.
- the connector 310 is provided with a limit switch 312. When connector 310 is inserted into charging inlet 270, limit switch 312 is turned on, and cable connection signal PISW indicating that connector 310 has been inserted into charging inlet 270 is input to ECU 170.
- the plug 320 is connected to a power outlet 400 provided in a house, for example.
- AC power is supplied to the power outlet 400 from a power source 402 (for example, a system power source).
- CCID 330 includes a relay 332 and a control pilot circuit 334.
- Relay 332 is provided on a pair of power lines for supplying charging power from power supply 402 to the plug-in hybrid vehicle. This power line pair is connected to a power line pair composed of power lines 281 and 282 when connector 310 is inserted into charging inlet 270.
- the relay 332 is on / off controlled by a control pilot circuit 334.
- relay 332 When relay 332 is off, the path for transmitting power from power supply 402 to the plug-in hybrid vehicle is blocked.
- relay 332 when relay 332 is turned on, power can be supplied from power supply 402 to the plug-in hybrid vehicle.
- the control pilot circuit 334 corresponds to a control device that controls the above-described EVSE.
- the control pilot circuit 334 operates with power supplied from the power source 402 when the plug 320 is connected to the power outlet 400. Then, the control pilot circuit 334 generates a pilot signal CPLT transmitted to the ECU 170 of the vehicle via the control pilot line.
- the pilot signal CPLT is oscillated at a specified duty cycle. Let Control pilot circuit 334 turns on relay 332 when the vehicle is ready for charging.
- the control pilot circuit 334 notifies the ECU 170 of the vehicle of the rated current that can be supplied to the vehicle from the power source 402 via the coupler 300 by the duty cycle of the pilot signal CPLT (ratio of the pulse width to the oscillation period).
- FIG. 5 is a diagram showing a waveform of pilot signal CPLT generated by control pilot circuit 334 shown in FIG.
- pilot signal CPLT oscillates at a prescribed period T.
- the pulse width Ton of the pilot signal CPLT is set based on the rated current that can be supplied from the power source 402 to the vehicle via the coupler 300. Then, the rated current is notified from the control pilot circuit 334 to the ECU 170 of the vehicle using the pilot signal CPLT by the duty indicated by the ratio of the pulse width Ton to the period T.
- the rated current is determined for each coupler, and the rated current varies with the type of coupler, so the duty of the pilot signal CPLT also varies. Then, the ECU 170 of the vehicle receives the pilot signal CPLT transmitted from the control pilot circuit 334 provided in the coupler via the control pilot line, and detects the duty of the received pilot signal CPLT, whereby the power supply 402 The rated current that can be supplied to the vehicle via the coupler 300 can be detected.
- charger 290 includes a voltage sensor 291, a current sensor 292, a voltage application circuit 293, and a charging circuit 294.
- Charging circuit 294 includes a rectifier circuit 295, a converter (CNV) 296, and an insulating transformer 297.
- the voltage sensor 291 detects the voltage (alternating voltage) VAC between the power lines 281 and 282 and outputs the detected value to the ECU 170.
- Current sensor 292 detects current IAC flowing through power line 281 and outputs the detected value to ECU 170.
- the current sensor 292 may be installed on the power line 282 in order to detect a current flowing through the power line 282.
- the power lines 281 and 282 are electrically connected to the hot side terminal and the cold side terminal of the power outlet 400, respectively. Therefore, in the following description, “AC (H) line” and “AC (C) line” refer to power lines 281 and 282, respectively. However, the power lines 281 and 282 may be connected to the cold side terminal and the hot side terminal of the power outlet 400, respectively.
- the voltage application circuit 293 applies different first and second test voltages to the power lines 281 and 282 in accordance with the control signal CTL from the ECU 170, respectively.
- ECU 170 detects voltage VH of power line 281 and voltage VC of power line 282 in a state where a test voltage is applied to each of power lines 281 and 282 by voltage application circuit 293.
- ECU 170 detects the presence or absence of a short circuit for each of power lines 281 and 282 based on voltages VH and VC. Further, when ECU 170 detects that a short circuit has occurred in at least one of power lines 281 and 282, it specifies a short circuit mode corresponding to the short circuit detected from among a plurality of short circuit modes. That is, ECU 170 corresponds to a “short-circuit detection unit” in the present invention.
- the rectifier circuit 295 converts AC power input via the power lines 281 and 282 into DC power.
- Converter 296 converts the voltage of the DC power output from rectifier circuit 295 into a predetermined voltage in accordance with a signal from ECU 170.
- ECU 170 calculates the ratio (conversion ratio) of the output voltage of converter 296 to the input voltage of converter 296 based on voltage VAC detected by voltage sensor 291 and controls the operation of converter 296 according to the conversion ratio.
- the AC voltage supplied to the charger 290 may be different (for example, AC 100 V or AC 200 V).
- the ECU 170 controls the conversion ratio of the converter 296, so that a predetermined DC voltage can be output from the converter 296 even when the AC voltage supplied to the charger 290 differs depending on the power source.
- the insulating transformer 297 converts the voltage from the converter 296 into a voltage suitable for charging the power storage device. Since the voltage ratio in the insulating transformer 297 is fixed, a voltage suitable for charging the power storage device can be obtained by outputting a predetermined DC voltage from the converter 296.
- FIG. 6 is a diagram for explaining the charging mechanism shown in FIG. 4 in more detail.
- CCID 330 includes an electromagnetic coil 606 and a leakage detector 608 in addition to relay 332 and control pilot circuit 334.
- Control pilot circuit 334 includes an oscillator 602, a resistance element R 1, and a voltage sensor 604.
- the oscillator 602 is operated by electric power supplied from the power source 402.
- the oscillator 602 outputs a non-oscillating signal when the potential of the pilot signal CPLT detected by the voltage sensor 604 is near a predetermined potential V1 (for example, 12V), and when the potential of the pilot signal CPLT decreases from V1, A signal that oscillates at a specified frequency (for example, 1 kHz) and a duty cycle is output.
- the potential of pilot signal CPLT is manipulated by switching the resistance value of resistance circuit 502 of ECU 170, as will be described later. Further, as described above, the duty cycle is set based on the rated current that can be supplied from the power source 402 via the coupler 300 to the vehicle.
- control pilot circuit 334 supplies a current to the electromagnetic coil 606 when the potential of the pilot signal CPLT is near a specified potential V3 (for example, 6V).
- V3 for example, 6V
- Leakage detector 608 is provided in a power line pair for supplying charging power from power supply 402 to the plug-in hybrid vehicle, and detects the presence or absence of leakage. Specifically, leakage detector 608 detects an equilibrium state of currents flowing in opposite directions to the power line pair, and detects the occurrence of leakage when the equilibrium state breaks down. Although not particularly illustrated, when leakage is detected by leakage detector 608, power supply to electromagnetic coil 606 is interrupted and relay 332 is turned off.
- ECU 170 includes a resistance circuit 502, a voltage generation circuit 506, input buffers 508 and 510, and CPUs (Control Processing Units) 512 and 514.
- the resistance circuit 502 includes pull-down resistors R2 and R3 and switches SW1 and SW2.
- Pull-down resistor R2 and switch SW1 are connected in series between control pilot line L1 through which pilot signal CPLT is communicated and vehicle ground 518.
- Pull-down resistor R3 and switch SW2 are connected in series between control pilot line L1 and vehicle ground 518, and are connected in parallel to the pull-down resistor R2 and switch SW1 connected in series.
- the switches SW1 and SW2 are turned on / off according to a control signal from the CPU 512.
- Vehicle ground 518 is connected to ground line L2.
- the resistance circuit 502 switches the potential of the pilot signal CPLT by turning on / off the switches SW1 and SW2 in accordance with a control signal from the CPU 512. That is, when the switch SW2 is turned on according to the control signal from the CPU 512, the potential of the pilot signal CPLT is lowered to a specified potential V2 (for example, 9V) by the pull-down resistor R3. Further, when the switch SW1 is further turned on according to the control signal from the CPU 512, the potential of the pilot signal CPLT is lowered to a specified potential V3 (for example, 6V) by the pull-down resistors R2 and R3.
- V2 for example, 9V
- the voltage generation circuit 506 includes a power supply node 516, pull-up resistors R4 to R6, and a diode D3. This voltage generation circuit 506 is determined by the voltage of power supply node 516 (for example, 12V), pull-up resistors R4 to R6, and pull-down resistor R7 connected to vehicle ground 518 when connector 310 is not connected to charging inlet 270. A voltage is generated on the control pilot line L1. A diode D2 is provided between the pull-up resistor R4 and the control pilot line L1.
- the input buffer 508 receives the pilot signal CPLT of the control pilot line L1 via the diode D1, and outputs the received pilot signal CPLT to the CPU 512.
- Input buffer 510 receives cable connection signal PISW from signal line L3 connected to limit switch 312 of connector 310, and outputs the received cable connection signal PISW to CPU 514.
- a voltage is applied to the signal line L3 from the ECU 170, and when the connector 310 is connected to the charging inlet 270, the limit switch 312 is turned on so that the potential of the signal line L3 becomes the ground level. That is, the cable connection signal PISW is a signal that is L (logic low) level when the connector 310 is connected to the charging inlet 270 and is H (logic high) level when not connected.
- the CPU 514 receives the cable connection signal PISW from the input buffer 510, and determines the connection between the connector 310 and the charging inlet 270 based on the received cable connection signal PISW. Then, CPU 514 outputs the determination result to CPU 512.
- the CPU 512 receives a pilot signal CPLT from the input buffer 508, and receives a connection determination result between the connector 310 and the charging inlet 270 from the CPU 514. When CPU 512 receives the determination result that connector 310 is connected to charging inlet 270, CPU 512 activates the control signal output to switch SW2.
- the CPU 512 outputs the control signal CTL to the voltage application circuit 293 (see FIG. 4) and receives the voltages VH and VC.
- CPU 512 detects the presence or absence of a short circuit for each of power lines 281 and 282 based on voltages VH and VC. Further, when the CPU 512 detects that a short circuit has occurred in at least one of the power lines 281 and 282, the CPU 512 specifies the short circuit mode corresponding to the short circuit detected from the plurality of short circuit modes, and stores the specified short circuit mode. To do.
- the CPU 512 When the CPU 512 detects that the power lines 281 and 282 are not short-circuited, it can be supplied from the power source 402 to the plug-in hybrid vehicle based on the pilot signal CPLT that starts oscillating in response to the switch SW2 being turned on. Detects a rated current. When the rated current is detected and preparation for charging power storage device 150 from power supply 402 is completed, CPU 512 further activates a control signal output to switch SW1, turns on relay 260 (not shown), and charger 290. Start the operation. Thereby, charging control of power storage device 150 is executed.
- FIG. 7 is a timing chart of pilot signal CPLT and switches SW1 and SW2 at the start of charging. 7 and 6, when plug 320 of coupler 300 is connected to power outlet 400 of power supply 402 at time t1, control pilot circuit 334 receives pilot signal CPLT and receives power from power supply 402. appear.
- pilot signal CPLT has a potential of V1 (for example, 12 V), and pilot signal CPLT is in a non-oscillating state.
- connection between connector 310 and charging inlet 270 is detected based on cable connection signal PISW, and switch SW2 is turned on accordingly. Then, the potential of pilot signal CPLT is lowered to V2 (for example, 9V) by pull-down resistor R3 of resistance circuit 502.
- control pilot circuit 334 oscillates pilot signal CPLT at time t3. Then, when the rated current is detected based on the duty of pilot signal CPLT in CPU 512 and preparation for charge control is completed, switch SW1 is turned on at time t4. Then, the potential of pilot signal CPLT is further lowered to V3 (for example, 6V) by pull-down resistor R2 of resistance circuit 502.
- voltage application circuit 293 and ECU 170 detect the presence or absence of a short circuit for each of power lines 281 and 282, and a short circuit has occurred in at least one of power lines 281 and 282. If detected, the short-circuit mode corresponding to the short-circuit detected from among the plurality of short-circuit modes is specified.
- FIG. 8 is a circuit diagram showing an embodiment of the voltage application circuit 293. As shown in FIG. Referring to FIG. 8, voltage application circuit 293 includes a power supply node 519 to which a predetermined voltage (+ B) is applied, a vehicle ground 518, resistors R11 to R14, and switches SW11 to SW16.
- the switch SW11 and the resistor R11 are connected in series between the power supply node 519 and the power line 281.
- Switch SW12 and resistor R12 are connected in series between power line 281 and vehicle ground 518.
- Switch SW13 and resistor R13 are connected in series between power supply node 519 and power line 282.
- Switch SW14 and resistor R14 are connected in series between power line 282 and vehicle ground 518.
- the resistors R11 to R14 correspond to “first to fourth resistor circuits” in the present invention, respectively.
- Power supply node 519 and vehicle ground 518 correspond to “first node” and “second node” in the present invention, respectively.
- the resistors R11 to R14 correspond to a voltage source that generates an intermediate voltage between the voltage (+ B) and the ground voltage (0 V) as a test voltage.
- the switch SW11 (SW13) is in a state where the power line 281 (282) is connected to the power supply node 519 via the resistor R11 (R13) in response to the control signal CTL from the ECU 170, and the power line 281 (282) and the power supply node 519. Is switched to a state in which the electrical connection to is interrupted.
- the switch SW12 (SW14) is in a state where the power line 281 (282) is connected to the vehicle ground 518 via the resistor R12 (R14) according to the control signal CTL from the ECU 170, and the power line 281 (282) and the vehicle ground 518. Is switched to a state in which the electrical connection to is interrupted.
- switch SW11 is arranged between the resistor R11 and the power supply node 519, but the arrangement of the switch SW11 and the resistor R11 may be switched. The same applies to the switches SW12 to SW14 and the resistors R12 to R14.
- the switches SW11 to SW16 are turned on / off all at once in response to a control signal CTL from the ECU 170 (more specifically, the CPU 512 shown in FIG. 6). That is, all the switches SW11 to SW16 are turned on or all turned off.
- the resistors R11 and R12 constitute a first resistance voltage dividing circuit
- the first resistance voltage division ratio and the second resistance voltage division ratio are different from each other.
- the first resistance voltage division ratio is larger than the second resistance voltage division ratio. If power lines 281 and 282 are normal, voltage VH is different from voltage VC (voltage VH is greater than voltage VC).
- the ECU 170 is connected to the power lines 281 and 282.
- the ECU 170 acquires the values of the voltages VH and VC by performing analog-digital conversion on the input voltages VH and VC. Thereby, ECU 170 detects voltages VH and VC.
- voltage VH (VC) becomes substantially equal to voltage (+ B) of power supply node 519.
- voltage VH (VC) is substantially equal to ground voltage (0 V).
- the voltage VH becomes equal to the voltage VC and the voltage VH (VC) is a normal voltage (a voltage determined by the power supply voltage and the resistance voltage dividing ratio), It is different from both the power supply voltage (+ B) and the ground voltage.
- ECU 170 stores a plurality of voltage ranges in advance. ECU 170 identifies a voltage range to which the acquired voltage value belongs from among the plurality of voltage ranges, and based on the identified voltage range, power line 281 (282) is normal or power line 281 (282). Determine if is shorted. Further, when power line 281 (282) is short-circuited, ECU 170 specifies the short-circuit mode based on the specified voltage range.
- the short-circuit mode includes a mode corresponding to a state where power line 281 (282) is short-circuited to vehicle ground 518, a mode corresponding to a state where power line 281 (282) is short-circuited to power supply node 519, and power line 281 A mode corresponding to a state where one of 282 is short-circuited to the other is included.
- FIG. 9 is a diagram showing a plurality of voltage ranges stored in the ECU 170.
- the voltage range from 0 (V) to + B (V) is “ground side short region”, “AC (C) line normal region”, “AC line short region”, “AC (H ) Line normal area “and” Power supply side short area ".
- Vth1 to Vth4 are threshold values for determining which of the plurality of regions the voltage VH (VC) belongs to, and correspond to the upper limit value (or lower limit value) of each region.
- Earth-side short region corresponds to a voltage range from 0 (V) to Vth1 (V) and includes 0 (V). When voltage VH (voltage VC) is within this region, it is determined that power line 281 (282) is short-circuited to vehicle ground 518.
- AC (C) line normal region corresponds to a voltage range from Vth1 (V) to Vth2 (V). When voltage VC is within this region, it is determined that power line 282 is normal.
- the AC line short region corresponds to a voltage range from Vth2 (V) to Vth3 (V). When voltages VH and VC are both within this region, it is determined that one of power lines 281 and 282 is short-circuited to the other.
- AC (H) line normal region corresponds to a voltage range from Vth3 (V) to Vth4 (V). When voltage VH is within this region, it is determined that power line 281 is normal.
- the power supply side short region corresponds to the voltage range from Vth4 (V) to + B (V) and includes + B (V).
- voltage VH voltage VC
- FIG. 10 is a first flowchart illustrating the charge control process and the short circuit detection process according to the present embodiment.
- step S1 a vehicle (charging inlet 270) and a power source 402 (power outlet 400) are connected via a coupler 300.
- coupler 300 When coupler 300 is connected to power outlet 400, the potential of pilot signal CPLT output from control pilot circuit 334 becomes V1 (step S1).
- the processing in step S1 corresponds to the operation of the control pilot circuit 334 at time t1 in FIG.
- ECU 170 is activated when connector 300 is connected to the vehicle (charging inlet 270) (step S2).
- the CPU 514 included in the ECU 170 detects the connection between the connector 310 and the charging inlet 270 based on the cable connection signal PISW.
- the CPU 512 turns on the switch SW2 based on the detection result of the CPU 514.
- the potential of pilot signal CPLT changes from V1 to V2 (step S3).
- the control pilot circuit 334 starts oscillation of the pilot signal CPLT (step S4).
- the processes in steps S2 and S3 correspond to the operation of ECU 170 and the operation of control pilot circuit 334 during the period from time t1 to time t3 in FIG.
- the relay 332 of the CCID 330 When the potential of the pilot signal CPLT is V2, the relay 332 of the CCID 330 is in an off state, so that the path for transmitting power from the power source 402 to the plug-in hybrid vehicle is blocked.
- ECU 170 detects that charging inlet 270 is connected to coupler 300, ECU 170 sets CCID relay 332 in the OFF state by setting the potential of pilot signal CPLT to V2. As a result, the path for transmitting power from the power source 402 to the plug-in hybrid vehicle is blocked.
- the ECU 170 (more specifically, the CPU 512) turns on the switches SW11 to SW16 included in the voltage application circuit 293 by turning on the control signal CTL (step S5).
- ECU 170 (CPU 512) detects voltage VH of power line 281 and voltage VC of power line 282 (step S6). Since the path for transmitting power from the power source 402 to the plug-in hybrid vehicle is cut off, if the power lines 281 and 282 are normal, the voltages VH and VC are “AC (H) line normal region” and “AC (C) line normal region”. Therefore, ECU 170 can detect short circuits of power lines 281 and 282 based on voltages VH and VC and a plurality of voltage ranges shown in FIG.
- ECU 170 determines whether both voltages VH and VC are within the normal range, or at least one of voltages VH and VC is outside the normal range (step S7).
- the normal range of voltage VH is the “AC (H) line normal region” shown in FIG. 9, and the normal range of voltage VC is the “AC (C) line normal region” shown in FIG.
- step S7 If each of the voltages VH and VC is within the corresponding normal range (YES in step S7), the subsequent processing proceeds according to the flowchart shown in FIG. When at least one of voltages VH and VC is outside the normal range corresponding thereto (NO in step S7), the subsequent processing proceeds according to the flowchart shown in FIG.
- FIG. 11 is a second flowchart illustrating the charge control process and the short circuit detection process according to the present embodiment.
- CPU 512 turns off control signal CTL (step S11).
- step S11 control signal
- all the switches SW11 to SW16 included in the voltage application circuit 293 are turned off.
- the short circuit detection process ends.
- the CPU 512 detects the rated current based on the duty of the pilot signal CPLT. Then, when the preparation for charge control is completed, the CPU 512 turns on the switch SW1 included in the resistance circuit 502. As a result, the potential of pilot signal CPLT changes from V2 to V3 (step S12).
- steps S6, S7, S11, and S12 corresponds to the operation of ECU 170 during the period from time t3 to t4 in FIG.
- step S13 When detecting that the potential of the pilot signal CPLT has changed from V2 to V3, the control pilot circuit 334 turns on the relay 332 in the CCID 330 by supplying a current to the electromagnetic coil 606 (step S13). ECU 170 turns on relay 260 and starts operation of charger 290. Thereby, charging control of power storage device 150 by ECU 170 is executed (step S14).
- the processes in steps S13 and S14 correspond to the processes executed after time t4 in FIG.
- FIG. 12 is a third flowchart illustrating the charge control process and the short circuit detection process according to the present embodiment.
- ECU 170 CPU 512
- the CPU 512 specifies a short-circuit mode corresponding to the detected short-circuit from the plurality of short-circuit modes based on the voltages VH and VC and the plurality of voltage ranges shown in FIG. 9 (step S21).
- the CPU 512 stores the specified short-circuit mode (step S22).
- the specified short-circuit mode information may be stored in the CPU 512, or may be stored in the storage device when the ECU 170 includes a storage device. Further, the specified short-circuit mode information may be stored in a storage medium (for example, a semiconductor memory) outside ECU 170.
- step S23 the CPU 512 turns off the control signal CTL (step S23).
- all the switches SW11 to SW16 included in the voltage application circuit 293 are turned off.
- the process for detecting the presence or absence of a short circuit and the process for specifying the short circuit mode are completed.
- step S24 the potential of pilot signal CPLT changes from V2 to V1 (step S24). Further, ECU 170 (CPU 512) stops its own operation (step S25). In this case, charging of power storage device 150 is not executed.
- the vehicle abnormality detection device includes voltage application circuit 293 that applies first and second test voltages to power lines 281 and 282, and ECU 170 that is a short-circuit detection unit. Is provided. ECU 170 is in a state in which voltage application circuit 293 applies a test voltage to power lines 281 and 282 (switches SW11 to SW14 are in an on state), but the voltage value of power line 281 (282) is equal to the test voltage. When the value is out of the normal range including the value, a short circuit of the power line 281 (282) is detected. Further, ECU 170 specifies a short-circuit mode corresponding to a short circuit detected from a plurality of short-circuit modes based on the voltage value.
- the leakage detector 608 is also included in the coupler 300. Therefore, a method of detecting a short circuit of the power lines 281 and 282 with the leakage detector 608 is also conceivable.
- the rated current can vary depending on the coupler. Therefore, there is a possibility that a coupler having a larger current capacity than that of power lines 281 and 282 is connected between the vehicle and the power outlet. When a current exceeding the rated current of the coupler flows due to a short circuit of one of the power lines 281 and 282, it is considered that the short circuit can be detected by a leakage detector provided in the coupler.
- the abnormality detection apparatus can directly detect a short circuit of the power line connected to the charging inlet and the charger by having the above configuration. Furthermore, the abnormality detection device according to the present embodiment can ensure the accuracy of short circuit detection by specifying a mode corresponding to a short circuit detected from among a plurality of short circuit modes.
- the short-circuit detection process is not limited to be performed when the coupler and the charging inlet are connected, and is periodically or constantly performed when the coupler is not connected to the charging inlet (for example, when the vehicle is running). May be.
- the configuration of the voltage application circuit 293 is not limited to the configuration shown in FIG.
- the configuration shown in FIG. 13 can be adopted.
- the configuration shown in FIG. 13 is different from the configuration shown in FIG. 8 in that the switches SW11 to SW14 are not provided. According to the configuration in FIG. 13, although an electric current flows through the resistors R11 to R14 when an AC voltage is applied to the power lines 281 and 282, the current is small because the impedance of each resistor is sufficiently high. Therefore, the influence on the electrical system of the vehicle according to the present embodiment is considered to be small.
- the CPU 512 may execute a process for notifying the user of detection of a short circuit.
- the notification method is not particularly limited.
- a lamp such as an LED (light emitting diode) may be turned on.
- AC power from the power source 402 is converted into DC power by the charger 290 to charge the power storage device 150 is shown.
- AC power from the power source 402 is applied to the neutral point 112 of the first MG and the neutral point 122 of the second MG, and the first and second inverters 210 and 220 and the first and second MGs 110 and 120 are applied. May be charged as a single-phase PWM converter.
- FIG. 15 is a diagram showing a zero-phase equivalent circuit of first and second inverters 210 and 220 and first and second MGs 110 and 120 shown in FIG.
- Each of the first inverter 210 and the second inverter 220 includes a three-phase bridge circuit as shown in FIG. 14, and there are eight patterns of ON / OFF combinations of the six switching elements in each inverter. Two of the eight switching patterns have zero interphase voltage, and such a voltage state is called a zero voltage vector.
- the switching elements included in the upper arm of each phase can be regarded as the same switching state (all on or off), and the switching elements included in the lower arm of each phase are also the same switching state. Can be considered.
- the zero voltage vector is controlled in at least one of first and second inverters 210 and 220 based on the zero phase voltage command.
- Zero-phase voltage command is generated by, for example, the voltage between power lines 281 and 282 detected by a voltage sensor and the rated current notified from coupler 300 by pilot signal CPLT.
- the three switching elements of the upper arm of the first inverter 210 are collectively shown as an upper arm 210A, and the three switching elements of the lower arm of the first inverter 210 are collectively shown as a lower arm 210B.
- the three switching elements of the upper arm of the second inverter 220 are collectively shown as an upper arm 220A, and the three switching elements of the lower arm of the second inverter 220 are collectively shown as a lower arm 220B.
- this zero-phase equivalent circuit is regarded as a single-phase PWM converter that receives single-phase AC power input from the power source 402 to the neutral point 112 of the first MG 110 and the neutral point 122 of the second MG 120. be able to. Therefore, the zero voltage vector is changed based on the zero phase voltage command in at least one of the first and second inverters 210 and 220 so that the first and second inverters 210 and 220 operate as the arms of the single phase PWM converter.
- AC power supplied from the power source 402 can be converted into DC power and the power storage device 150 can be charged. That is, when charging power storage device 150 according to the control shown in FIGS. 14 and 15, first and second MGs 110 and 120 and first and second inverters 210 and 220 constitute a “charging circuit” in the present invention. .
- the power line 281 connects the neutral point 112 and the charging inlet 270.
- a power line 282 connects the neutral point 122 and the charging inlet 270.
- voltage application circuit 293 applies different first and second test voltages to power lines 281 and 282 in accordance with control signal CTL from ECU 170, respectively.
- ECU 170 detects voltage VH of power line 281 and voltage VC of power line 282 in a state where a test voltage is applied to each of power lines 281 and 282 by voltage application circuit 293. Also in the configuration shown in FIG. 14, ECU 170 can determine the presence or absence of a short circuit for each of power lines 281 and 282 based on voltages VH and VC. Furthermore, when ECU 170 detects that a short circuit has occurred in at least one of power lines 281 and 282, it can specify the short circuit mode corresponding to the short circuit detected from the plurality of short circuit modes.
- the present invention is also applicable to a hybrid vehicle that does not include converter 200.
- the series / parallel type hybrid vehicle has been described in which the power splitting mechanism 130 divides the power of the engine 100 and can be transmitted to the drive wheels 160 and the first MG 110. It can also be applied to other types of hybrid vehicles. That is, for example, a so-called series-type hybrid vehicle that uses the engine 100 only to drive the first MG 110 and generates the driving force of the vehicle only by the second MG 120, or only regenerative energy out of the kinetic energy generated by the engine 100.
- the present invention can also be applied to a hybrid vehicle that is recovered as electric energy, a motor-assisted hybrid vehicle in which a motor assists the engine as the main power if necessary.
- the present invention can also be applied to an electric vehicle that does not include the engine 100 and travels only by electric power, or a fuel cell vehicle that further includes a fuel cell as a power source in addition to a power storage device.
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Abstract
Description
また、上記の実施の形態においては、動力分割機構130によりエンジン100の動力を分割して駆動輪160と第1MG110とに伝達可能なシリーズ/パラレル型のハイブリッド車について説明したが、この発明は、その他の形式のハイブリッド車にも適用可能である。すなわち、たとえば、第1MG110を駆動するためにのみエンジン100を用い、第2MG120でのみ車両の駆動力を発生する、いわゆるシリーズ型のハイブリッド車や、エンジン100が生成した運動エネルギーのうち回生エネルギーのみが電気エネルギーとして回収されるハイブリッド車、エンジンを主動力として必要に応じてモータがアシストするモータアシスト型のハイブリッド車などにもこの発明は適用可能である。
Claims (12)
- 車両の異常検出装置であって、前記車両は、前記車両の駆動用の蓄電装置(150)と、前記車両の外部に設けられた電源(402)より供給される電力を受けるための充電インレット(270)と、前記電源(402)からの前記電力により前記蓄電装置(150)を充電する充電回路(294)と、前記充電インレット(270)と前記充電回路(294)とを接続する少なくとも1つの電力線(281,282)とを備え、
前記異常検出装置は、
前記少なくとも1つの電力線(281,282)に試験電圧を印加するための電圧印加回路(293)と、
前記電圧印加回路(293)が前記少なくとも1つの電力線(281,282)に前記試験電圧を印加するにもかかわらず、前記少なくとも1つの電力線(281,282)の電圧値が前記試験電圧の値を含む所定の正常範囲から外れている場合に前記少なくとも1つの電力線(281,282)の短絡を検出するとともに、前記電圧値に基づいて、複数の短絡モードの中から検出された前記短絡に対応する短絡モードを特定する短絡検出部(170)とを備える、車両の異常検出装置。 - 前記電圧印加回路(293)は、
第1の電圧が与えられる第1のノード(519)と、
前記第1の電圧より低い第2の電圧が与えられる第2のノード(518)と、
前記第1および第2のノード(591,518)に接続されることにより、前記第1および第2の電圧の中間の電圧を前記試験電圧として発生させる電圧源(R11~R14)とを含み、
前記複数の短絡モードは、
前記少なくとも1つの電力線(281,282)が前記第1のノード(519)に短絡した状態に対応する第1のモードと、
前記少なくとも1つの電力線(281,282)が前記第2のノード(518)に短絡した状態に対応する第2のモードとを含み、
前記短絡検出部(170)は、前記少なくとも1つの電力線(281,282)の前記電圧値が、前記正常範囲の上限値より高く、かつ前記第1の電圧の値を含む第1の範囲内である場合には、前記対応する短絡モードを前記第1のモードと特定する一方、前記少なくとも1つの電力線(281,282)の前記電圧値が前記正常範囲の下限値より低く、かつ前記第2の電圧の値を含む第2の範囲内である場合には、前記対応する短絡モードを前記第2のモードと特定する、請求の範囲第1項に記載の車両の異常検出装置。 - 前記少なくとも1つの電力線(281,282)は、
第1の電力線(281)と、
第2の電力線(282)とを含み、
前記電圧源は、前記第1および第2の電力線(281,282)に、前記試験電圧として互いに異なる第1および第2の試験電圧をそれぞれ印加し、
前記複数の短絡モードは、
前記第1の電力線(281)が前記第2の電力線(282)に短絡した状態に対応する第3のモードをさらに含み、
前記短絡検出部(170)は、前記第1の電力線(281)の電圧値および前記第2の電力線(282)の電圧値の両方が、前記正常範囲、前記第1の範囲および前記第2の範囲のいずれとも異なる第3の範囲内である場合には、前記対応する短絡モードを前記第3のモードと特定する、請求の範囲第2項に記載の車両の異常検出装置。 - 前記電圧源は、
前記第1のノード(519)と前記少なくとも1つの電力線(281,282)との間に電気的に接続される第1の抵抗回路(R11)と、
前記第2のノード(518)と前記少なくとも1つの電力線(281,282)との間に電気的に接続される第2の抵抗回路(R12)と、
前記少なくとも1つの電力線(281,282)を前記第1の抵抗回路(R11)を介して前記第1のノード(519)に電気的に接続する状態と、前記少なくとも1つの電力線(281,282)と前記第1のノード(519)との電気的接続を遮断する状態とを切換可能に構成された第1の接続部(SW11)と、
前記少なくとも1つの電力線(281,282)を前記第2の抵抗回路(R12)を介して前記第2のノード(518)に電気的に接続する状態と、前記少なくとも1つの電力線(281,282)と前記第2のノード(518)との電気的接続を遮断する状態とを切換可能に構成された第2の接続部(SW12)とを含み、
前記短絡検出部(170)は、前記第1および第2の接続部(SW11,SW12)をともに接続状態に設定することによって、前記少なくとも1つの電力線(281,282)の前記電圧値を取得する、請求の範囲第3項に記載の車両の異常検出装置。 - 前記充電インレット(270)は、連結器(300)によって前記電源(402)に接続され、
前記連結器(300)は、前記電源(402)から前記充電インレット(270)への前記電力の伝達経路を遮断するための遮断回路(332)を含み、
前記短絡検出部(170)は、前記充電インレット(270)が前記連結器(300)に接続されたことを検出した場合には、前記伝達経路が遮断されるよう前記遮断回路(332)を制御するとともに、前記第1および第2の接続部(SW11,SW12)をともに接続状態に設定する、請求の範囲第4項に記載の車両の異常検出装置。 - 車両の異常検出装置であって、前記車両は、前記車両の駆動用の蓄電装置(150)と、前記車両の外部に設けられた電源(402)より供給される電力を受けるための充電インレット(270)と、前記電源(402)からの前記電力により前記蓄電装置(150)を充電する充電回路(294)と、前記充電インレット(270)と前記充電回路(294)とを接続する第1および第2の電力線(281,282)とを備え、
前記異常検出装置は、
第1の電圧が与えられる第1のノード(519)と、
前記第1の電圧よりも低い第2の電圧が与えられる第2のノード(518)と、
前記第1のノード(519)と前記第1の電力線(281)との間に電気的に接続される第1の抵抗回路(R11)と、
前記第2のノード(518)と前記第1の電力線(281)との間に電気的に接続される第2の抵抗回路(R12)と、
前記第1のノード(519)と前記第2の電力線(282)との間に電気的に接続される第3の抵抗回路(R13)と、
前記第2のノード(518)と前記第2の電力線(282)との間に電気的に接続される第4の抵抗回路(R14)と、
前記第1の電圧から前記第2の電圧までの電圧範囲を予め分割することにより得られる複数の範囲の中から、前記第1の電力線(281)の第1の電圧値(VH)および前記第2の電力線(282)の第2の電圧値(VC)の各々が属する範囲を特定することにより、前記第1および第2の電力線(281,282)の各々の短絡の有無を検出する短絡検出部(170)とを備え、
前記第1および第2の抵抗回路(R11,R12)の各々の抵抗値により定まる第1の抵抗分圧比は、前記第3および第4の抵抗回路(R13,R14)の各々の抵抗値により定まる第2の抵抗分圧比より大きく、
前記複数の範囲は、
前記第1および第2の電圧ならびに前記第1の抵抗分圧比により定まる値を含む範囲として設定された第1の正常範囲と、
前記第1および第2の電圧ならびに前記第2の抵抗分圧比により定まる値を含む範囲として設定された第2の正常範囲と、
前記第1の正常範囲の上限値から前記第1の電圧の値までの範囲として設定され、かつ前記第1および第2の電力線(281,282)の少なくとも一方の電力線が前記第1のノード(519)に短絡している状態における前記少なくとも一方の電力線に対応する電圧値を含む、第1の異常範囲と、
前記第2の電圧の値から前記第2の正常範囲の下限値までの範囲として設定され、前記少なくとも一方の電力線が前記第2のノード(518)に短絡している状態における前記少なくとも一方の電力線に対応する電圧値を含む、第2の異常範囲と、
前記第1および第2の正常範囲の間の範囲として設定され、かつ、前記第1の電力線(281)が前記第2の電力線(282)に短絡している場合における前記第1および第2の電圧値(VH,VC)を含む、第3の異常範囲とを含む、車両の異常検出装置。 - 車両であって、
前記車両の駆動用の蓄電装置(150)と、
前記車両の外部に設けられた電源(402)より供給される電力を受けるための充電インレット(270)と、
前記電源(402)からの前記電力により前記蓄電装置(150)を充電する充電回路(294)と、
前記充電インレット(270)と前記充電回路(294)とを接続する少なくとも1つの電力線(281,282)と、
前記少なくとも1つの電力線(281,282)に試験電圧を印加するための電圧印加回路(293)と、
前記電圧印加回路(293)が前記少なくとも1つの電力線(281,282)に前記試験電圧を印加するにもかかわらず、前記少なくとも1つの電力線(281,282)の電圧値が前記試験電圧の値を含む所定の正常範囲から外れている場合に前記少なくとも1つの電力線(281,282)の短絡を検出するとともに、前記電圧値に基づいて、複数の短絡モードの中から検出された前記短絡に対応する短絡モードを特定する短絡検出部(170)とを備える、車両。 - 前記電圧印加回路(293)は、
第1の電圧が与えられる第1のノード(519)と、
前記第1の電圧より低い第2の電圧が与えられる第2のノード(518)と、
前記第1および第2のノード(591,518)に接続されることにより、前記第1および第2の電圧の中間の電圧を前記試験電圧として発生させる電圧源(R11~R14)とを含み、
前記複数の短絡モードは、
前記少なくとも1つの電力線(281,282)が前記第1のノード(519)に短絡した状態に対応する第1のモードと、
前記少なくとも1つの電力線(281,282)が前記第2のノード(518)に短絡した状態に対応する第2のモードとを含み、
前記短絡検出部(170)は、前記少なくとも1つの電力線(281,282)の前記電圧値が、前記正常範囲の上限値より高く、かつ前記第1の電圧の値を含む第1の範囲内である場合には、前記対応する短絡モードを前記第1のモードと特定する一方、前記少なくとも1つの電力線(281,282)の前記電圧値が前記正常範囲の下限値より低く、かつ前記第2の電圧の値を含む第2の範囲内である場合には、前記対応する短絡モードを前記第2のモードと特定する、請求の範囲第7項に記載の車両。 - 前記少なくとも1つの電力線(281,282)は、
第1の電力線(281)と、
第2の電力線(282)とを含み、
前記電圧源は、前記第1および第2の電力線(281,282)に、前記試験電圧として互いに異なる第1および第2の試験電圧をそれぞれ印加し、
前記複数の短絡モードは、
前記第1の電力線(281)が前記第2の電力線(282)に短絡した状態に対応する第3のモードをさらに含み、
前記短絡検出部(170)は、前記第1の電力線(281)の電圧値および前記第2の電力線(282)の電圧値の両方が、前記正常範囲、前記第1の範囲および前記第2の範囲のいずれとも異なる第3の範囲内である場合には、前記対応する短絡モードを前記第3のモードと特定する、請求の範囲第8項に記載の車両。 - 前記電圧源は、
前記第1のノード(519)と前記少なくとも1つの電力線(281,282)との間に電気的に接続される第1の抵抗回路(R11)と、
前記第2のノード(518)と前記少なくとも1つの電力線(281,282)との間に電気的に接続される第2の抵抗回路(R12)と、
前記少なくとも1つの電力線(281,282)を前記第1の抵抗回路(R11)を介して前記第1のノード(519)に電気的に接続する状態と、前記少なくとも1つの電力線(281,282)と前記第1のノード(519)との電気的接続を遮断する状態とを切換可能に構成された第1の接続部(SW11)と、
前記少なくとも1つの電力線(281,282)を前記第2の抵抗回路(R12)を介して前記第2のノード(518)に電気的に接続する状態と、前記少なくとも1つの電力線(281,282)と前記第2のノード(518)との電気的接続を遮断する状態とを切換可能に構成された第2の接続部(SW12)とを含み、
前記短絡検出部(170)は、前記第1および第2の接続部(SW11,SW12)をともに接続状態に設定することによって、前記少なくとも1つの電力線(281,282)の前記電圧値を取得する、請求の範囲第9項に記載の車両。 - 前記充電インレット(270)は、連結器(300)によって前記電源(402)に接続され、
前記連結器(300)は、前記電源(402)から前記充電インレット(270)への前記電力の伝達経路を遮断するための遮断回路(332)を含み、
前記短絡検出部(170)は、前記充電インレット(270)が前記連結器(300)に接続されたことを検出した場合には、前記伝達経路が遮断されるよう前記遮断回路(332)を制御するとともに、前記第1および第2の接続部(SW11,SW12)をともに接続状態に設定する、請求の範囲第10項に記載の車両。 - 車両であって、
前記車両の駆動用の蓄電装置(150)と、
前記車両の外部に設けられた電源(402)より供給される電力を受けるための充電インレット(270)と、
前記電源(402)からの前記電力により前記蓄電装置(150)を充電する充電回路(294)と、
前記充電インレット(270)と前記充電回路(294)とを接続する第1および第2の電力線(281,282)と、
第1の電圧が与えられる第1のノード(519)と、
前記第1の電圧よりも低い第2の電圧が与えられる第2のノード(518)と、
前記第1のノード(519)と前記第1の電力線(281)との間に電気的に接続される第1の抵抗回路(R11)と、
前記第2のノード(518)と前記第1の電力線(281)との間に電気的に接続される第2の抵抗回路(R12)と、
前記第1のノード(519)と前記第2の電力線(282)との間に電気的に接続される第3の抵抗回路(R13)と、
前記第2のノード(518)と前記第2の電力線(282)との間に電気的に接続される第4の抵抗回路(R14)と、
前記第1の電圧から前記第2の電圧までの電圧範囲を予め分割することにより得られる複数の範囲の中から、前記第1の電力線(281)の第1の電圧値(VH)および前記第2の電力線(282)の第2の電圧値(VC)の各々が属する範囲を特定することにより、前記第1および第2の電力線(281,282)の各々の短絡の有無を検出する短絡検出部(170)とを備え、
前記第1および第2の抵抗回路(R11,R12)の各々の抵抗値により定まる第1の抵抗分圧比は、前記第3および第4の抵抗回路(R13,R14)の各々の抵抗値により定まる第2の抵抗分圧比より大きく、
前記複数の範囲は、
前記第1および第2の電圧ならびに前記第1の抵抗分圧比により定まる値を含む範囲として設定された第1の正常範囲と、
前記第1および第2の電圧ならびに前記第2の抵抗分圧比により定まる値を含む範囲として設定された第2の正常範囲と、
前記第1の正常範囲の上限値から前記第1の電圧の値までの範囲として設定され、かつ前記第1および第2の電力線(281,282)の少なくとも一方の電力線が前記第1のノード(519)に短絡している状態における前記少なくとも一方の電力線に対応する電圧値を含む、第1の異常範囲と、
前記第2の電圧の値から前記第2の正常範囲の下限値までの範囲として設定され、前記少なくとも一方の電力線が前記第2のノード(518)に短絡している状態における前記少なくとも一方の電力線に対応する電圧値を含む、第2の異常範囲と、
前記第1および第2の正常範囲の間の範囲として設定され、かつ、前記第1の電力線(281)が前記第2の電力線(282)に短絡している場合における前記第1および第2の電圧値(VH,VC)を含む、第3の異常範囲とを含む、車両。
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EP08811080.4A EP2332771A4 (en) | 2008-09-22 | 2008-09-22 | ANOMALY DETECTOR FOR VEHICLE AND VEHICLE |
PCT/JP2008/067063 WO2010032320A1 (ja) | 2008-09-22 | 2008-09-22 | 車両の異常検出装置および車両 |
US12/811,889 US8698346B2 (en) | 2008-09-22 | 2008-09-22 | Vehicle abnormality detection apparatus and vehicle |
JP2010529551A JP4743346B2 (ja) | 2008-09-22 | 2008-09-22 | 車両の異常検出装置および車両 |
CN200880131208XA CN102159421B (zh) | 2008-09-22 | 2008-09-22 | 车辆的异常检测装置和车辆 |
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EP (1) | EP2332771A4 (ja) |
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EP2332771A1 (en) | 2011-06-15 |
JPWO2010032320A1 (ja) | 2012-02-02 |
US20110181104A1 (en) | 2011-07-28 |
EP2332771A4 (en) | 2014-06-18 |
CN102159421A (zh) | 2011-08-17 |
US8698346B2 (en) | 2014-04-15 |
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CN102159421B (zh) | 2013-02-06 |
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