WO2010128550A1 - 電源システムおよびそれを備える車両 - Google Patents
電源システムおよびそれを備える車両 Download PDFInfo
- Publication number
- WO2010128550A1 WO2010128550A1 PCT/JP2009/058662 JP2009058662W WO2010128550A1 WO 2010128550 A1 WO2010128550 A1 WO 2010128550A1 JP 2009058662 W JP2009058662 W JP 2009058662W WO 2010128550 A1 WO2010128550 A1 WO 2010128550A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- power storage
- power
- storage device
- voltage
- converter
- Prior art date
Links
Images
Classifications
-
- 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
- H02M3/1584—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 with a plurality of power processing stages connected in parallel
-
- 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
-
- 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
-
- 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
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
-
- 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
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/22—Balancing the charge of battery modules
-
- 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
- H02J1/10—Parallel operation of dc sources
- H02J1/102—Parallel operation of dc sources being switching converters
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0018—Circuits for equalisation of charge between batteries using separate charge circuits
-
- 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
- B60L2210/00—Converter types
- B60L2210/10—DC to DC converters
-
- 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
- B60L2210/00—Converter types
- B60L2210/40—DC to AC converters
-
- 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
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/40—Electrical machine applications
- B60L2220/42—Electrical machine applications with use of more than one motor
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
-
- 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
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
- Y02T10/72—Electric energy management in electromobility
Definitions
- the present invention relates to a power supply system having a plurality of power storage devices and a vehicle including the same, and more particularly to a technique for reducing power conversion loss of the power supply system.
- electric vehicles using an electric motor as a driving force source such as electric vehicles, hybrid vehicles, and fuel cell vehicles, have attracted attention.
- a power storage device such as a secondary battery or an electric double layer capacitor to supply electric power to the motor or to store kinetic energy converted into electric energy during regenerative braking.
- Patent Document 1 Japanese Patent Laid-Open No. 6-276609
- Patent Document 1 an electric device provided with a plurality of (for example, three) storage batteries each having a DC-DC converter interface between the storage battery and the inverter. A drive system is disclosed.
- Patent Document 2 discloses an electric motor power management system that provides a desired DC high voltage level to a high voltage vehicle traction system.
- the electric motor power management system includes a plurality of power supply stages each having a battery and a boost / buck DC / DC converter and connected in parallel to supply DC power to at least one inverter, and a plurality of power supply stages And a controller for controlling the plurality of power supply stages so that the plurality of power supply stages maintain the battery voltage to at least one inverter.
- the driving force required for the vehicle varies greatly depending on the driving situation. For example, when traveling at low speed or traveling downhill, the required power is smaller than the total charge / discharge allowable power in the plurality of power storage devices. Therefore, in such a case, the voltage conversion operation of the voltage conversion unit (corresponding to the above-described DC-DC converter interface, boost / buck DC / DC converter) corresponding to the predetermined power storage device is stopped, and the voltage conversion is performed. It is desirable to reduce the power conversion loss in the part.
- the voltage conversion unit corresponding to the above-described DC-DC converter interface, boost / buck DC / DC converter
- Patent Document 1 Japanese Patent Application Laid-Open No. 6-276609
- a hardware failure for example, short circuit or open circuit
- the drive system is operated at 2/3 capacity.
- the other two storage batteries are kept at the same voltage using an external control device.
- the load on the deteriorated storage battery is reduced, and a method for controlling the DC-DC converter interface for reducing power conversion loss has not been particularly studied.
- Patent Document 2 Japanese Patent Application Laid-Open No. 2003-209969
- the present invention has been made to solve such a problem, and an object thereof is to stably execute control for reducing power conversion loss in a power supply system having a plurality of power storage devices. And a vehicle including the same power supply system.
- a power supply system is a power supply system having a plurality of power storage devices each configured to be chargeable / dischargeable.
- the power supply system is provided between a power line pair electrically connected to the load device and between the plurality of power storage devices and the power line pair, and each performs a voltage conversion operation between the power line pair and the corresponding power storage device.
- a control device that controls the plurality of voltage conversion units.
- one power storage device is configured such that the power supply voltage is higher than the other power storage device by a first predetermined value.
- the first predetermined value is determined according to an error that can be included in the detection values of the plurality of voltage detection units.
- the control device includes the first included in the plurality of voltage conversion units based on the output voltages of the plurality of power storage devices detected by the plurality of voltage detection units when the required power from the load device is equal to or less than the threshold value.
- the second voltage conversion unit is configured to execute the voltage conversion operation of the voltage conversion unit having the larger output voltage of the power storage device corresponding to each of the second voltage conversion units and stop the voltage conversion operation of the other voltage conversion unit. The first and second voltage converters are controlled.
- the first predetermined value is determined to be higher than a total value of errors that can be included in the detection value of the voltage detection unit corresponding to each of the first and second power storage devices.
- each of the plurality of voltage conversion units is connected in series with the inductor, and is arranged between one power line of the power line pair and one pole of the corresponding power storage device, and the other of the power line pair Wiring for electrically connecting the other power line and the other electrode of the corresponding power storage device.
- the control device maintains the switching element in the on state for the voltage conversion unit that is executing the voltage conversion operation.
- a power supply system is a power supply system having a plurality of power storage devices each configured to be chargeable / dischargeable.
- the power supply system is provided between a power line pair electrically connected to the load device and between the plurality of power storage devices and the power line pair, and each performs a voltage conversion operation between the power line pair and the corresponding power storage device.
- a plurality of voltage conversion units configured as described above, a plurality of current detection units that are associated with the plurality of power storage devices, and detect the current of the corresponding power storage device, and according to the required power from the load device And a control device that controls the plurality of voltage conversion units.
- one power storage device is configured such that the power supply voltage is higher than the other power storage device by a second predetermined value.
- the second predetermined value is determined according to an error that can be included in the detection values of the plurality of current detection units.
- the control device electrically connects the power line pair and the corresponding power storage device for a predetermined period for each of the plurality of voltage conversion units, Of the first and second voltage conversion units included in the plurality of voltage conversion units based on the current of the corresponding power storage device detected by the first current detection unit included in the plurality of current detection units in the period
- the first and second voltage conversion units are configured to execute the voltage conversion operation of the voltage conversion unit having the higher output voltage of the power storage device corresponding to each and stop the voltage conversion operation of the other voltage conversion unit. Control.
- the control device selects a voltage conversion unit having a higher output voltage of the corresponding power storage device based on the polarity of the current of the corresponding power storage device detected by the first current detection unit during the predetermined period.
- the second predetermined value is a value obtained by converting an error that can be included in the detection value of the first current detection unit into a voltage difference between the output voltage of the first power storage device and the output voltage of the second power storage device. It is determined to be higher.
- each of the plurality of voltage conversion units is connected in series with the inductor, and is arranged between one power line of the power line pair and one pole of the corresponding power storage device, and the other of the power line pair Wiring for electrically connecting the other power line and the other electrode of the corresponding power storage device.
- the control device maintains the switching element in the on state for the voltage conversion unit that is executing the voltage conversion operation.
- a vehicle includes any one of the power supply systems described above, and a driving force generation unit that receives electric power from the power supply system and generates a driving force of the vehicle as a load device.
- the present invention in a power supply system having a plurality of power storage devices, it is possible to stably perform control for reducing power conversion loss in the voltage conversion unit.
- FIG. 1 is a schematic configuration diagram showing a main part of a vehicle 100 equipped with a power supply system 1 according to Embodiment 1 of the present invention.
- vehicle 100 includes a power supply system 1, a first inverter 8-1, a second inverter 8-2, a motor generator MG1, a motor generator MG2, and a drive ECU 40.
- a power supply system 1 including two power storage devices 4-1 and 4-2 will be described as an example of a power supply system including a plurality of power storage devices.
- the inverters 8-1 and 8-2, the motor generators MG 1 and MG 2, and the drive ECU 40 constitute a drive force generator 2 for generating a drive force for driving the vehicle 100.
- the driving force generation unit 2 is a “load device” is illustrated. That is, vehicle 100 travels by transmitting a driving force generated by electric power supplied from power supply system 1 to driving force generation unit 2 to wheels (not shown).
- Inverters 8-1 and 8-2 are connected in parallel to main positive bus MPL and main negative bus MNL, which are a pair of power lines, respectively, and exchange power with power supply system 1. That is, inverters 8-1 and 8-2 convert electric power (DC power) supplied via main positive bus MPL and main negative bus MNL into AC power and supply it to motor generators MG1 and MG2, respectively. AC power generated by motor generators MG1 and MG2 is converted to DC power and returned to power supply system 1 as regenerative power.
- inverters 8-1 and 8-2 are each configured by a bridge circuit including an arm circuit for three phases, and each power conversion operation is controlled by switching commands PWM 1 and PWM 2 from drive ECU 40.
- Motor generator MG1 acts as a generator (generator) that can generate electric power by receiving power generated by the operation of an engine (not shown), and generates electric power by receiving a rotational driving force transmitted through power split mechanism 42.
- motor generator MG2 acts as an electric motor (motor) that generates a driving force by the power generated by motor generator MG1 and the power from at least one of power storage devices 4-1, 4-2.
- the rotational driving force generated by motor generator MG2 is combined with the rotational driving force of the engine by power split mechanism 42 and applied to the wheels (not shown).
- Motor generator MG2 also acts as a generator (generator) during vehicle braking, such as a driver's braking operation, and regenerates kinetic energy of vehicle 100 as power energy to power storage devices 4-1, 4-2. You can also.
- Motor generators MG1 and MG2 include, for example, a permanent magnet type three-phase AC rotating machine including a rotor in which a permanent magnet is embedded.
- the stators of motor generators MG1 and MG2 each include three-phase stator coils that are Y-connected.
- Arithmetic processing is executed in the drive ECU 40 so that the driving forces generated by the engine and the motor generators MG1, MG2 respectively have an optimal ratio.
- the drive ECU 40 executes a program stored in advance, and based on signals transmitted from respective sensors (not shown), travel conditions, rate of change in accelerator opening, a stored map, etc. 3 calculates driving power (hereinafter also referred to as required power) Ps required by the power supply system 1, and based on the calculated required power Ps, the torque target value and the rotational speed target value of the motor generators MG1 and MG2 are calculated. calculate.
- drive ECU 40 generates switching commands PWM1 and PMW2 to cause inverters 8-1 and 8-2 so that generated torque and rotational speed of motor generators MG1 and MG2 become a torque target value and a rotational speed target value, respectively. Control.
- the drive ECU 40 outputs the calculated required power Ps to the power supply system 1.
- the power supply system 1 includes a smoothing capacitor C, an input / output voltage detection unit 14, a first converter 6-1, a second converter 6-2, output current detection units 10-1 and 10-2, and an output voltage detection.
- Units 12-1, 12-2, temperature detection units 11-1, 11-2, converter ECU 30, and battery ECU 20 are provided.
- Smoothing capacitor C is connected between main positive bus MPL and main negative bus MNL, and is included in the driving power output from converters 6-1 and 6-2 and the regenerative power supplied from driving force generator 2. Reduce fluctuation components.
- the input / output voltage detection unit 14 is connected between the main positive bus MPL and the main negative bus MNL, detects the input / output voltage Vh of driving power and regenerative power exchanged with the driving force generating unit 2, The detected value is output to converter ECU 30.
- the first converter 6-1 and the second converter 6-2 are connected in parallel to the main positive bus MPL and the main negative bus MNL.
- First converter 6-1 is provided between main positive bus MPL and main negative bus MNL and first power storage device 4-1, and based on switching command PWC1 from converter ECU 30, first power storage device 4-1. Power conversion operation is performed between main positive bus MPL and main negative bus MNL.
- first converter 6-1 boosts the discharge power from first power storage device 4-1 to a predetermined voltage and supplies it as drive power, while regenerative power supplied from drive power generation unit 2 Is stepped down to a predetermined voltage and output to the first power storage device 4-1.
- Second converter 6-2 is provided between main positive bus MPL and main negative bus MNL and second power storage device 4-2 based on switching command PWC2 from converter ECU 30, and includes switching command PWC2 from converter ECU 30. Based on the above, a power conversion operation is performed between second power storage device 4-2 and main positive bus MPL and main negative bus MNL. Specifically, second converter 6-2 boosts the discharge power from second power storage device 4-2 to a predetermined voltage and supplies it as drive power, while regenerative power supplied from drive force generation unit 2 Is stepped down to a predetermined voltage and output to the second power storage device 4-2.
- the first power storage device 4-1 and the second power storage device 4-2 are DC power sources that can be charged and discharged, and include, for example, secondary batteries such as nickel metal hydride and lithium ions, or electric double layer capacitors.
- the power supply voltage of power storage devices 4-1 and 4-2 is configured such that the power supply voltage of one power storage device is higher than the power supply voltage of the other power storage device by a predetermined value. Such a configuration is realized, for example, by adjusting the number of battery cells provided in each power storage device.
- the power storage devices 4-1 and 4-2 can be charged by receiving power generated by the operation of the engine when the system of the vehicle 100 is activated, and via a charging cable (not shown) when the system of the vehicle 100 is stopped.
- the battery may be configured to be rechargeable by being electrically connected to an external power source.
- the output voltage detection unit 12-1 is connected between the positive line PL1 and the negative line NL1 that connect the first power storage device 4-1 and the first converter 6-1 to the first power storage device 4-1. Output voltage Vb1 related to the output is detected, and the detection result is output to battery ECU 20 and converter ECU 30.
- the output voltage detection unit 12-2 is connected between the positive line PL2 and the negative line NL2 connecting the first power storage device 4-2 and the second converter 6-2, and is connected to the second power storage device 4-2. Output voltage Vb2 related to the output is detected, and the detection result is output to battery ECU 20 and converter ECU 30.
- Output current detection units 10-1 and 10-2 are respectively inserted into positive lines PL1 and PL2 that connect power storage devices 4-1 and 4-2 to converters 6-1 and 6-2, respectively. Output currents Ib1 and Ib2 relating to the inputs and outputs of devices 4-1 and 4-2 are detected, and the detection results are output to battery ECU 20 and converter ECU 30.
- the temperature detectors 11-1 and 11-2 are arranged close to battery cells and the like constituting the power storage devices 4-1 and 4-2, respectively, and the temperatures Tb1 and Tb2 of the power storage devices 4-1 and 4-2 are detected.
- the detection result is output to the battery ECU 20.
- the temperature detection units 11-1 and 11-2 are based on the detection results of the plurality of detection elements arranged in association with the plurality of battery cells constituting the power storage devices 4-1 and 4-2, respectively.
- the representative value may be output by a conversion process or the like.
- Converter ECU 30 is linked with battery ECU 20 and drive ECU 40, which are connected via control lines, respectively, and power storage devices 4-1 and 4-2 determine the power value (required power) Ps required by drive force generation unit 2 as predetermined.
- the voltage conversion operations in converters 6-1 and 6-2 are controlled so that they can be shared by the ratios.
- converter ECU 30 generates switching commands PWC1 and PWC2 for each of converters 6-1 and 6-2 in accordance with a control mode selected in advance among control modes described later.
- FIG. 2 is a schematic configuration diagram of converters 6-1 and 6-2 according to the first embodiment of the present invention.
- the first converter 6-1 includes a chopper circuit 40-1 and a smoothing capacitor C1.
- Chopper circuit 40-1 boosts DC power (driving power) received from first power storage device 4-1 during discharging in response to switching command PWC1 from converter ECU 30 (FIG. 1), while main positive bus is charged during charging.
- the DC power (regenerative power) received from the MPL and the main negative bus MNL is stepped down.
- Chopper circuit 40-1 includes positive bus LN1A, negative bus LN1C, wiring LN1B, transistors Q1A and Q1B serving as switching elements, diodes D1A and D1B, and inductor L1.
- Positive bus LN1A has one end connected to the collector of transistor Q1B and the other end connected to main positive bus MPL.
- Negative bus LN1C has one end connected to negative line NL1 and the other end connected to main negative bus MNL.
- Transistors Q1A and Q1B are connected in series between negative bus LN1C and positive bus LN1A.
- Transistor Q1A has an emitter connected to negative bus LN1C
- transistor Q1B has a collector connected to positive bus LN1A.
- diodes D1A and D1B that flow current from the emitter side to the collector side are connected between the collector and emitter of the transistors Q1A and Q1B, respectively.
- inductor L1 is connected to a connection point between transistor Q1A and transistor Q1B.
- Wiring LN1B has one end connected to positive line PL1 and the other end connected to inductor L1.
- the smoothing capacitor C1 is connected between the wiring LN1B and the negative bus LN1C, and reduces the AC component included in the DC voltage between the wiring LN1B and the negative bus LN1C.
- converter ECU 30 maintains transistor Q1B in the off state, and turns on / off transistor Q1A at a predetermined duty ratio.
- the discharge current flows from first power storage device 4-1 to main positive bus MPL through wiring LN1B, inductor L1, diode D1B, and positive bus LN1A in this order.
- a pump current flows from first power storage device 4-1 through wiring LN 1 B, inductor L 1, transistor Q 1 A, and negative bus LN 1 C in this order.
- the inductor L1 accumulates electromagnetic energy by this pump current.
- converter ECU 30 turns on / off transistor Q1B at a predetermined duty ratio and maintains transistor Q1A in the off state.
- a charging current flows from first positive power line MPL to first power storage device 4-1, via positive bus LN1A, transistor Q1B, inductor L1, and wiring LN1B in this order.
- the transistor Q1B transitions from the on state to the off state, a magnetic flux is generated so that the inductor L1 prevents a change in current. Therefore, the charging current continues to flow through the diode D1A, the inductor L1, and the wiring LN1B in order.
- the charging current is kept constant. (Assuming that the inductance of the inductor L1 is sufficiently large), the average voltage of the DC power supplied from the first converter 6-1 to the first power storage device 4-1 is the DC between the main positive bus MPL and the main negative bus MNL. It is a value obtained by multiplying the voltage by the duty ratio.
- converter ECU 30 includes switching command PWC1A for controlling on / off of transistor Q1A and switching command PWC1B for controlling on / off of transistor Q1B.
- a switching command PWC1 is generated.
- second converter 6-2 has the same configuration and operation as first converter 6-1 described above, detailed description thereof will not be repeated.
- Converter ECU 30 controls the voltage conversion operations of converters 6-1 and 6-2 in accordance with the concept described in FIG. 3.
- FIG. 3 is a diagram showing an outline of power supply to the driving force generator 2 according to the first embodiment of the present invention.
- FIG. 3A shows a case where the power value (required power) Ps required by the driving force generator 2 is relatively high
- FIG. 3B shows a case where the required power Ps is relatively low.
- the first converter 6-1 operates as a “master” and the second converter 6-2 operates as a “slave”. Then, the first converter 6-1 operating as the “master” has a voltage value of power supplied from the power supply system 1 to the driving force generator 2 (input / output voltage between the main positive bus MPL and the main negative bus MNL). The control is performed according to the “voltage control mode (boost)” for setting the value Vh) to a predetermined voltage target value.
- second converter 6-2 that operates as a “slave” has electric power (second electric power storage) shared by corresponding second electric power storage device 4-2 among electric power supplied from power supply system 1 to driving force generation unit 2.
- Control is performed in accordance with a “power control mode” for setting a predetermined power target value to the power supplied and received between device 4-2 and main positive bus MPL and main negative bus MNL.
- a “power control mode” for setting a predetermined power target value to the power supplied and received between device 4-2 and main positive bus MPL and main negative bus MNL.
- the voltage conversion operation of one of the converters 6-1 and 6-1 is executed, and the other The control modes in converters 6-1 and 6-2 are switched so as to stop the voltage conversion operation of the converters.
- the threshold value Pth is set according to the charge / discharge allowable power of the first power storage device 4-1 and the second power storage device 4-2. That is, if required power Ps from driving force generation unit 2 is smaller than the charge / discharge allowable power of power storage device 4-1 or 4-2, converter ECU 30 stops the voltage conversion operation of one converter, and converts power conversion loss. Reduce.
- converter ECU 30 outputs the output of power storage devices 4-1, 4-2 based on output voltages Vb1, Vb2 provided from output voltage detectors 12-1, 12-1 (FIG. 1).
- a converter corresponding to the power storage device with the higher voltage is selected, and the voltage conversion operation is executed. This is to suppress the occurrence of short-circuit current between the power storage devices and to avoid abnormal deterioration and unnecessary loss of the power storage devices. That is, if the output voltage of the power storage device connected to the converter that has stopped the voltage conversion operation becomes larger than the output voltage of the other power storage device, the converter that has stopped the voltage conversion operation will flow backward, causing a short circuit current. It is.
- first converter 6-1 is switched to the conduction mode, and the second converter 6-2 is switched to the stop mode. That is, first converter 6-1 maintains an electrical continuity between first power storage device 4-1, main positive bus MPL, and main negative bus MNL.
- the transistor Q1B (FIG. 2) connected to the main positive bus MPL is maintained in the ON state. That is, switching command PWC1B having a duty ratio of 100% is given from converter ECU 30 to transistor Q1B.
- transistor Q1A connected to main negative bus MNL is maintained in the off state. That is, switching command PWC1A with a duty ratio of 0% is given from converter ECU 30 to transistor Q1A.
- positive line PL1 is electrically connected to main positive bus MPL via inductor L1 and transistor Q1B, and negative line NL1 is directly connected to main negative bus MNL.
- second converter 6-2 transistor Q2B (FIG. 2) connected to main positive bus MPL and transistor Q2A connected to main negative bus MNL are both kept off.
- switching commands PWC2B and PWC2A having a duty ratio of 0% are supplied from converter ECU 30 to transistors Q2B and Q2A, respectively.
- FIG. 4 is a flowchart showing a control structure of converter ECU 30 according to the first embodiment of the present invention. Note that the flowchart shown in FIG. 4 can be realized by executing a program stored in advance in converter ECU 30.
- converter ECU 30 determines whether required power Ps exceeds threshold value Pth (step S02). That is, it is determined whether the required power is a high load.
- step S02 When required power Ps exceeds threshold value Pth (YES in step S02), that is, when required power Ps is a high load, converter ECU 30 operates first converter 6-1 as a “master”. Therefore, the first converter 6-1 is set to the voltage control mode (boost), and the second converter 6-2 is set to the power control mode in order to operate the second converter 6-2 as a “slave”. (Step S03).
- step S02 when the required power Ps is less than or equal to the threshold value Pth (NO in step S02), that is, when the required power Ps is a low load, the output voltage detectors 12-1 and 12-2 (FIG. 1), output voltages Vb1 and Vb2 of power storage devices 4-1 and 4-2 are acquired (step S04). Then, converter ECU 30 determines whether or not output voltage Vb1 of first power storage device 4-1 is higher than output voltage Vb2 of second power storage device 4-2 (step S05).
- converter ECU 30 When output voltage Vb1 of first power storage device 4-1 is higher than output voltage Vb2 of second power storage device 4-2 (YES in step S05), converter ECU 30 conducts first converter 6-1. While switching to the mode, the second converter 6-2 is switched to the stop mode (step S06).
- converter ECU 30 causes first converter While switching 6-1 to the stop mode, the second converter 6-2 is switched to the conduction mode (step S07).
- the converter corresponding to the power storage device with the higher output voltage is switched to the conduction mode and the other power storage device The corresponding converter is switched to the stop mode.
- one of converters 6-1 and 6-2 stops the voltage conversion operation while continuing to supply power to driving force generation unit 2, so that the main positive bus MPL and main negative bus MNL from the corresponding power storage device.
- the switching loss (power conversion loss) related to the power supply to can be reduced. Therefore, even if the current value flowing through the corresponding converter becomes relatively large due to the power supply from only a single power storage device, it is possible to suppress the occurrence of unnecessary loss. As a result, the energy efficiency of the power supply system 1 can be improved, so that the overall fuel consumption efficiency in the vehicle 100 equipped with the power supply system 1 can be further increased.
- step S05 in the processing flow of FIG. 4 is the detection values (output voltage) of the output voltage detection units 12-1 and 12-2 respectively associated with the power storage devices 4-1, 4-2. This is done by comparing Vb1, Vb2) with each other.
- FIG. 5 is an operational state diagram of the first converter 6-1 and the second converter 6-2 in the control mode shown in FIG. 3 (b).
- converter ECU 30 causes first power storage device 4-1 detected by output voltage detection unit 12-1 (FIG. 1). Based on the comparison result that the output voltage Vb1 is higher than the output voltage Vb2 of the second power storage device 4-2 detected by the output voltage detector 12-2 (FIG. 1), the control mode of the first converter 6-1 Is switched to the conduction mode, and the control mode of the second converter 6-2 is switched to the stop mode.
- the transistor Q1B is maintained in the on state, while the transistor Q1A is maintained in the off state.
- positive line PL1 is electrically connected to main positive bus MPL via inductor L1 and transistor Q1B.
- transistors Q2B and Q2A are both kept off.
- Such a situation occurs when, for example, the detection values of the output voltage detection units 12-1 and 12-2 include maximum errors on the positive side and the negative side, respectively, and the output voltage detection unit 12-1 This may occur when the positive-side maximum error is superimposed on the detected value and the negative-side maximum error is superimposed on the detected value of the output voltage detector 12-2.
- first converter 6-1 corresponding to first power storage device 4-1 having a lower output voltage is controlled according to the conduction mode
- second converter 4-2 corresponding to the second power storage device 4-2 having a higher output voltage is controlled.
- the second converter 6-2 is controlled according to the stop mode
- the second power storage device 4-2 passes through the diode D2B of the second converter 6-2, the main positive bus MPL, and the transistor Q1B of the first converter 6-1.
- a current path that flows into one power storage device 4-1 is formed.
- the short circuit current Is flows through this current path, the first power storage device 4-1 is deteriorated and unnecessary loss is caused. Therefore, in order to suppress the occurrence of the short-circuit current Is between the power storage devices, the output voltage comparison operation between the power storage devices is accurate without being affected by errors that may be included in the detection values of the output voltage detection units. Need to be done.
- the output voltage detector 12-1 includes the maximum error ⁇ V1 on the positive side and the negative side, respectively
- the output voltage detector 12-2 includes the maximum error ⁇ V2 on the positive side and the negative side, respectively
- the output The positive maximum error (+ ⁇ V1) is superimposed on the detection value Vb1 of the voltage detection unit 12-1
- the negative maximum error ( ⁇ V2) is superimposed on the detection value Vb2 of the output voltage detection unit 12-2.
- the sign (positive / negative) of the voltage difference based on the detection values Vb1 and Vb2 is inverted with respect to the true voltage difference. That is, since the magnitude relationship between the detection values Vb1 and Vb2 is reversed from the magnitude relationship between the true output voltages, an error occurs in the output voltage comparison result between the power storage devices.
- the error in the comparison result described above occurs when the true voltage difference between the power storage devices belongs to the voltage range surrounded by the two total values ⁇ and ⁇ . In other words, when the true voltage difference between the power storage devices exceeds the total value ⁇ (corresponding to the region RGN1 in the drawing), or when the true voltage difference falls below the total value ⁇ (corresponding to the region RGN2 in the drawing). Then, the comparison result of the voltage value between the power storage devices can be accurately performed without being affected by the maximum error of each output voltage detection unit.
- power supply system 1 is configured such that the power supply voltage of one power storage device is higher than the power supply voltage of the other power storage device by a predetermined value with respect to power storage devices 4-1 and 4-2.
- the voltage difference is provided in advance.
- This configuration can be realized, for example, by adjusting the number of battery cells provided in each power storage device.
- the predetermined value in this configuration is determined according to an error that can be included in the detection value of each output voltage detection unit described above. Specifically, the predetermined value is determined so that the difference in power supply voltage between the power storage devices belongs to one of regions RGN1 and RGN2 that can be discriminated by the detection value of the output voltage detection unit shown in FIG. That is, the predetermined value is higher than the total value ⁇ of the maximum error of the output voltage detector 12-1 and the maximum error of the output voltage detector 12-1.
- the magnitude relationship between the detection values Vb1 and Vb2 of the output voltage detection units 12-1 and 12-2 is true regardless of errors that can be included in the detection values of the output voltage detection units. It always matches the output voltage magnitude relationship. Thereby, since it is suppressed that an error arises in the comparison result of the output voltage between electrical storage devices, generation
- converter ECU 30 switches the control mode of the converter corresponding to the power storage device having the higher output voltage among power storage devices 4-1 and 4-2 to the conduction mode. At the same time, the control mode of the converter corresponding to the other power storage device is switched to the stop mode.
- converter ECU 30 uses output voltage detection units 12-1 and 12-2 (FIG. 1), respectively.
- the detected output voltages Vb1 and Vb2 are compared with each other.
- either of the output current detection units 10-1 and 10-2 (FIG. 1) is used. It is also possible to carry out based on the detected output current Ib1 or Ib2.
- FIG. 7 is a flowchart showing a control structure of converter ECU 30 according to the second embodiment of the present invention. Note that the flowchart shown in FIG. 7 can be realized by executing a program stored in advance in converter ECU 30.
- converter ECU 30 determines whether or not required power Ps exceeds threshold value Pth (step S02). That is, it is determined whether the required power is a high load.
- step S02 When required power Ps exceeds threshold value Pth (YES in step S02), that is, when required power Ps is a high load, converter ECU 30 operates first converter 6-1 as a “master”. Therefore, the first converter 6-1 is set to the voltage control mode (boost), and the second converter 6-2 is set to the power control mode in order to operate the second converter 6-2 as a “slave”. (Step S03).
- step S02 when required power Ps is equal to or less than threshold value Pth (NO in step S02), that is, when required power Ps is a low load, converter ECU 30 has first converter 6-1 for a predetermined period.
- the transistor Q1B and the transistor Q2B of the second converter 6-2 are simultaneously controlled to be turned on (step S14).
- FIG. 8 shows an operational state diagram of the first converter 6-1 and the second converter 6-2 during the predetermined period.
- transistors Q1B and Q2B connected to main positive bus MPL are both kept in the on state. That is, switching command with a duty ratio of 100% is given from converter ECU 30 to transistors Q1B and Q2B.
- transistors Q1A and Q2A connected to main negative bus MNL are both kept off. That is, a switching command with a duty ratio of 0% is given from converter ECU 30 to transistors Q1A and Q2A.
- both the first converter 6-1 and the second converter 6-2 are switched to the conduction mode.
- positive line PL1 is electrically connected to main positive bus MPL via inductor L1 and transistor Q1B, and negative line NL1 is directly connected to main negative bus MNL.
- Positive line PL2 is electrically connected to main positive bus MPL through inductor L2 and transistor Q2B, and negative line NL1 is directly connected to main negative bus MNL. Therefore, a current path is formed between first power storage device 4-1 and second power storage device 4-2. A short-circuit current Is corresponding to the voltage difference between the power storage devices flows through this current path.
- FIG. 9 is a diagram simply showing a current path formed between the first power storage device 4-1 and the second power storage device 4-2.
- output voltage Vb1 of first power storage device 4-1 can be expressed by equation (1) by electromotive voltage Vb1o, internal resistance R1 and current value Ib1 of first power storage device 4-1. .
- Vb1 Vb1o ⁇ R1 ⁇ Ib1 (1)
- output voltage Vb2 of second power storage device 4-2 can be expressed by equation (2) by electromotive voltage Vb2o, internal resistance R2 and current value Ib2 of second power storage device 4-2.
- Vb2 Vb2o ⁇ R2 ⁇ Ib2 (2)
- the control mode of converters 6-1 and 6-2 is switched to the conduction mode as shown in FIG. 8, between the positive electrode of first power storage device 4-1 and the positive electrode of second power storage device 4-2.
- the short circuit current Is which flows through this electric current path can be shown by following Formula (3) from said Formula (1), (2).
- the direction (polarity) of the short-circuit current Is changes according to the magnitude relationship of the electromotive voltage between the power storage devices. That is, when the electromotive voltage Vb1o is larger than the electromotive voltage Vb2o, the direction of the short circuit current Is is the direction from the first power storage device 4-1 to the second power storage device 4-2. On the other hand, when electromotive voltage Vb2o is larger than electromotive voltage Vb1o, the direction of short-circuit current Is is the direction from second power storage device 4-2 to first power storage device 4-1.
- the current sensors shown in FIG. 9 are associated with power storage devices 4-1 and 4-2, respectively, and output current detection units 10-1 and 10-2 for detecting the output current of the corresponding power storage device. Either of them can be used.
- the magnitude relationship of the output voltage between the power storage devices is determined based on the direction (polarity) of the output current Ib1 detected by the output current detection unit 10-1.
- the direction of output current Ib1 flowing from first power storage device 4-1 to positive line PL1 is positive
- the direction of output current flowing from positive line PL1 to first power storage device 4-1 is negative.
- step S15 when converter ECU 30 obtains output current Ib1 from output current detection unit 10-1 in the predetermined period of step S14 (step S15), the obtained output current Ib1 is positive. It is determined whether or not there is (step S16).
- converter ECU 30 determines that output voltage Vb1 of first power storage device 4-1 is higher than output voltage Vb2 of second power storage device 4-2. to decide. Then, converter ECU 30 switches first converter 6-1 to the conduction mode and switches second converter 6-2 to the stop mode (step S17).
- converter ECU 30 determines that output voltage Vb1 of second power storage device 4-2 is the output of first power storage device 4-1. It is determined that the voltage is equal to or higher than the voltage Vb2. In this case, converter ECU 30 switches first converter 6-1 to the stop mode and switches second converter 6-2 to the conduction mode (step S18).
- the output voltage of the power storage devices 4-1 and 4-2 is high.
- the converter corresponding to the other power storage device is switched to the conduction mode, and the converter corresponding to the other power storage device is switched to the stop mode.
- one of converters 6-1 and 6-2 stops the voltage conversion operation while continuing to supply power to driving force generation unit 2, so that the main positive bus MPL and main negative bus MNL from the corresponding power storage device.
- the switching loss related to the power supply to can be reduced.
- the power supply voltage of power storage devices 4-1 and 4-2 is determined according to the error that can be included in the detection value of output current detection unit 10-1.
- a predetermined voltage difference is provided. That is, power storage devices 4-1 and 4-2 are configured such that the power supply voltage of one power storage device is higher than the power supply voltage of the other power storage device by a predetermined value.
- the predetermined value in this configuration is determined such that the difference in power supply voltage between the power storage devices belongs to one of regions RGN3 and RGN4 shown in FIG.
- the output current detection unit 10-1 includes the maximum error ⁇ I on the positive side and the negative side, respectively, the range in which the detection value Ib1 of the output current detection unit 10-1 is greater than or equal to ⁇ I and less than or equal to + ⁇ I. If the value is within the range, the direction (polarity) of the detection value Ib1 may not match the direction (polarity) of the true output current. Therefore, if the output voltage comparison operation between the power storage devices is performed based on the detection value Ib1, an error occurs in the comparison result.
- the error in the comparison result described above occurs when the true voltage difference between the power storage devices belongs to the voltage range surrounded by the two voltage differences ⁇ and ⁇ . In other words, when the true voltage difference between the power storage devices exceeds the voltage difference ⁇ (corresponding to the region RGN3 in the drawing), or when the true voltage difference falls below the voltage difference ⁇ (corresponding to the region RGN4 in the drawing). ), It is possible to accurately perform the output voltage comparison operation between the power storage devices without being affected by the maximum error of the output current detection unit 10-1.
- the predetermined value is set to a value that exceeds the value ⁇ obtained by converting the maximum error ⁇ I of the output current detection unit 10-1 into a voltage difference between the power storage devices.
- FIG. 11 is a schematic configuration diagram showing a main part of vehicle 100 equipped with power supply system 1A according to the third embodiment of the present invention.
- power supply system 1A according to the third embodiment has three power storage devices 4-1 to 4-3 instead of two power storage devices 4-1 and 4-2. It differs in that it is equipped with.
- power supply system 1A includes smoothing capacitor C, input / output voltage detection unit 14, first converter 6-1, second converter 6-2, third converter 6-3, and output.
- Current detectors 10-1 to 10-3, output voltage detectors 12-1 to 12-3, temperature detectors 11-1 to 11-3, converter ECU 30A, and battery ECU 20A are provided.
- the first converter 6-1, the second converter 6-2, and the third converter 6-3 are connected in parallel to the main positive bus MPL and the main negative bus MNL.
- First converter 6-1 is provided between main positive bus MPL and main negative bus MNL and first power storage device 4-1, and based on switching command PWC1 from converter ECU 30A, first power storage device 4- 1 performs a power conversion operation between main positive bus MPL and main negative bus MNL.
- Second converter 6-2 is provided between main positive bus MPL and main negative bus MNL and second power storage device 4-2, and based on switching command PWC2 from converter ECU 30A, second power storage device 4- 2 performs power conversion operation between main positive bus MPL and main negative bus MNL.
- Third converter 6-3 is provided between main positive bus MPL and main negative bus MNL and third power storage device 4-3, and based on switching command PWC3 from converter ECU 30A, third power storage device 4- 3 performs power conversion operation between main positive bus MPL and main negative bus MNL.
- Switching device 16 is provided between main positive bus MPL and main negative bus MNL and converters 6-1 to 6-3, and any one of converters 6-1 to 6-3 according to switching command SW from converter ECU 30A.
- One is configured to be electrically disconnected from the main positive bus MPL and the main negative bus MNL.
- the switching device 16 includes system relays RY1 to RY3.
- System relay RY1 is arranged between first power storage device 4-1 and first converter 6-1.
- System relay RY2 is arranged between second power storage device 4-2 and second converter 6-2.
- System relay RY3 is arranged between third power storage device 4-3 and third converter 6-3.
- System relays RY1-RY3 are cut off in response to switching command SW from converter ECU 30A.
- the third power storage device 4-3 is a DC power source that can be charged and discharged, like the first power storage device 4-1 and the second power storage device 4-2.
- Output current detection unit 10-3 inserted in positive line PL3 detects output current Ib3 related to the input / output of third power storage device 4-2, and is connected between the positive line PL3 and the negative line NL3.
- the output voltage detector 12-3 detects the output voltage Vb3 related to the input / output of the third power storage device 4-3.
- the temperature detection unit 11-3 disposed in the vicinity of the battery cell constituting the third power storage device 4-3 detects the temperature Tb3 of the third power storage device 4-3.
- the battery ECU 20A includes temperatures Tb1 to Tb3 detected by the temperature detection units 11-1 to 11-3, output currents Ib1 to Ib3 detected by the output current detection units 10-1 to 10-3, and an output voltage detection unit 12. Based on the output voltages Vb1 to Vb3 detected at -1 to 12-3, the SOC of each power storage device is calculated.
- Converter ECU 30A is linked to battery ECU 20A and drive ECU 40, which are connected via control lines, respectively, so that power storage devices 4-1 to 4-3 can share the required power Ps at a predetermined ratio, respectively.
- the voltage conversion operation in 1 to 6-3 is controlled. Specifically, converter ECU 30A determines the detected values from output current detection units 10-1 to 10-3, output voltage detection units 12-1 to 12-3 and input / output voltage detection unit 14, and required power Ps. Based on this, switching commands PWC1 to PWC3 for driving converters 6-1 to 6-3 are generated. Then, converter ECU 30A outputs generated switching commands PWC1 to PWC3 to converters 6-1 to 6-3, respectively, and controls converters 6-1 to 6-3.
- converter ECU 30A provides a switching command SW for electrically disconnecting any one of converters 6-1 to 6-3 from main positive bus MPL and main negative bus MNL when required power Ps is a low load. Is output to the switching device 16. Then, among the remaining two converters, the voltage conversion operation of one converter is executed, and the control mode of each converter is switched so as to stop the voltage conversion operation of the other converter.
- FIG. 12 is a flowchart showing a control structure of converter ECU 30A according to the third embodiment of the present invention.
- the flowchart shown in FIG. 12 can be realized by executing a program stored in advance in converter ECU 30A.
- converter ECU 30A determines whether required power Ps exceeds threshold value Pth (step S02). That is, it is determined whether the required power is a high load.
- step S02 When required power Ps exceeds threshold value Pth (YES in step S02), that is, when required power Ps is a high load, converter ECU 30A operates first converter 6-1 as “master”. Therefore, in order to set the first converter 6-1 to the voltage control mode (boost) and operate the second converter 6-2 and the third converter 6-3 as “slave”, the second converter 6-2 The third converter 6-3 is set to the power control mode (step S03).
- converter ECU 30A causes converters 6-1 to 6 for a predetermined period.
- the transistors constituting the upper arms of each of ⁇ 3 are simultaneously controlled to be turned on (step S21).
- converters 6-1 to 6-3 are all controlled to be in a conduction mode during a predetermined period.
- Converter ECU 30A obtains output currents Ib1 to Ib3 during the predetermined period from output current detection units 10-1 to 10-3, respectively (step S22).
- converter ECU 30A selects a converter corresponding to the power storage device in which the direction (polarity) of the output current is negative based on the acquired output currents Ib1 to Ib3, converter ECU 30A selects the converter as main positive bus MPL and main negative bus MNL.
- a switching command SW for electrically disconnecting from the switch is generated and output to the switching device 16.
- the system relay disposed between the converter and main positive bus MPL and main negative bus MNL is cut off (step S23).
- step S23 the power storage device with the lowest output voltage is selected from among the power storage devices 4-1 to 4-3 based on the polarity of the output current of each power storage device in a predetermined period. This is because a current path is formed between the power storage devices 4-1 to 4-3 through the main positive bus MPL and the main negative bus MNL in a predetermined period, and the output voltage is the lowest in the current path. This is based on the short-circuit current flowing from the remaining two power storage devices toward the power storage device.
- converter ECU 30A selects the converter corresponding to the power storage device with the higher output voltage from the remaining two converters by performing the processes shown in steps S24 to S27 below, and performs the voltage conversion operation. Let it run. Note that the processing in steps S24 to S27 is substantially the same as the processing shown in steps S14 to S18 in the flowchart of FIG.
- converter ECU 30A first controls the transistors constituting the upper arms of the remaining two converters corresponding to the remaining two power storage devices to the on state simultaneously for a predetermined period (step S24).
- converter ECU 30A acquires the output current Ib of one of the remaining two power storage devices from the corresponding output current detection unit during the predetermined period (step S25), based on the polarity of the acquired output current Ib Then, the magnitude relationship of the output voltage between the remaining two power storage devices is determined (step S26).
- converter ECU 30A switches the converter corresponding to the power storage device with the higher output voltage to the conduction mode, and switches the converter corresponding to the other power storage device to the stop mode (step S27).
- the converter corresponding to the power storage device with the highest output voltage is turned on.
- converters corresponding to the remaining two power storage devices are switched to the stop mode.
- the converter corresponding to the remaining power storage device stops the voltage conversion operation while continuing to supply power to the driving force generating unit 2, and therefore, the remaining power storage device connects to the main positive bus MPL and the main negative bus MNL. Switching loss related to power supply can be reduced. Therefore, even if the current value flowing through the corresponding converter becomes relatively large due to the power supply from only a single power storage device, it is possible to suppress the occurrence of unnecessary loss.
- power supply voltages of power storage devices 4-1 to 4-3 are provided with a predetermined voltage difference determined according to an error that can be included in the detection value of the output current detection unit.
- the second power storage device 4-2 is configured such that the power supply voltage is higher than the third power storage device 4-3 by a predetermined value.
- the first power storage device 4-1 is configured such that the power supply voltage is higher than the second power storage device 4-2 by a predetermined value.
- the predetermined value at this time is set to a value higher than the value ⁇ obtained by converting the maximum error ⁇ I of the output current detection unit into the voltage difference between the power storage devices, as described in FIG.
- the magnitude relationship of the output voltage between the power storage devices obtained from the detection value always matches the magnitude relationship of the true output voltage.
- the power supply system includes three or more power storage devices and converters, the same as in the first and second embodiments described above.
- the effect can be demonstrated.
- the number of converters and power storage devices can be designed relatively relatively according to the required power from the load device. Therefore, it is possible to realize a power supply system capable of supplying power to load devices of various sizes and types and a vehicle including the power supply system.
- the configuration using the driving force generation unit including two motor generators as an example of the load device has been described, but the number of motor generators is not limited.
- the load device is not limited to the driving force generator that generates the driving force of the vehicle, and can be applied to both a device that only consumes power and a device that can both consume power and generate power.
- a power split mechanism 42 is used to distribute engine power to motor generator MG1 and wheels, so-called series / parallel type.
- the hybrid vehicle has been described, the present invention can also be applied to a so-called series-type hybrid vehicle in which the engine power is used only for power generation by the motor generator MG1 and the driving force of the vehicle is generated using only the motor generator MG2. is there.
- the present invention can be applied to a power supply system having a plurality of power storage devices and a vehicle including the same.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Dc-Dc Converters (AREA)
- Secondary Cells (AREA)
Abstract
Description
(車両の概略構成)
図1は、この発明の実施の形態1に従う電源システム1を搭載した車両100の要部を示す概略構成図である。
インバータ8-1および8-2は、それぞれ電力線対である主正母線MPLおよび主負母線MNLに対して並列接続され、それぞれ電源システム1との間で電力の授受を行なう。すなわち、インバータ8-1,8-2は、主正母線MPLおよび主負母線MNLを介して供給される電力(直流電力)をそれぞれ交流電力に変換してモータジェネレータMG1およびMG2へ供給する一方、モータジェネレータMG1,MG2がそれぞれ発生する交流電力を直流電力に変換して回生電力として電源システム1へ返還する。一例として、インバータ8-1および8-2は、それぞれ三相分のアーム回路を含むブリッジ回路で構成され、それぞれの電力変換動作は、駆動ECU40からのスイッチング指令PWM1,PWM2により制御される。
電源システム1は、平滑コンデンサCと、入出力電圧検出部14と、第1コンバータ6-1と、第2コンバータ6-2と、出力電流検出部10-1,10-2と、出力電圧検出部12-1,12-2と、温度検出部11-1,11-2と、コンバータECU30と、電池ECU20とを備える。
図2は、本発明の実施の形態1に従うコンバータ6-1,6-2の概略構成図である。
以下、コンバータECU30における制御構造についてより詳細に説明を行なう。コンバータECU30は、図3に説明する考え方に従って、コンバータ6-1,6-2の電圧変換動作を制御する。
放電電力Pb1+放電電力Pb2=供給電力Pc
の関係が成立する。
放電電力Pb1=供給電力Pc
の関係が成立する。
(処理フロー)
以上のような制御モードの切替えを実現するための制御構造について以下に説明する。
ここで、図4の処理フローのうちステップS05に示される処理は、蓄電装置4-1,4-2にそれぞれ対応付けられた出力電圧検出部12-1,12-2の検出値(出力電圧Vb1,Vb2)を互いに比較することによって行なわれる。
上述したように、要求電力Psが低負荷のときには、コンバータECU30は、蓄電装置4-1,4-2のうち、出力電圧が高い方の蓄電装置に対応するコンバータの制御モードを導通モードに切替えるとともに、他方の蓄電装置に対応するコンバータの制御モードを停止モードに切替える。
同様に、第2蓄電装置4-2の出力電圧Vb2は、第2蓄電装置4-2の起電圧Vb2o、内部抵抗R2および電流値Ib2により、式(2)で示すことができる。
ここで、図8に示すようにコンバータ6-1,6-2の制御モードを導通モードに切替えると、第1蓄電装置4-1の正極と第2蓄電装置4-2の正極との間には、正線PL1、主正母線MPLおよび正線PL2により構成される電流経路が形成される。そして、この電流経路を流れる短絡電流Isは、上記の式(1),(2)から次式(3)で示すことができる。
式(3)からも明らかなように、短絡電流Isの方向(極性)は、蓄電装置間の起電圧の大小関係に応じて変化する。すなわち、起電圧Vb1oが起電圧Vb2oよりも大きいときには、短絡電流Isの方向は、第1蓄電装置4-1から第2蓄電装置4-2に向かう向きとなる。一方、起電圧Vb2oが起電圧Vb1oよりも大きいときには、短絡電流Isの方向は、第2蓄電装置4-2から第1蓄電装置4-1に向かう向きとなる。したがって、図9に示すように電流経路上に短絡電流Isの方向を検出するための電流センサを設ける構成とすれば、当該電流センサの検出値に基づいて起電圧Vb1o,Vb2oの大小関係を判別することができる。
図11は、この発明の実施の形態3に従う電源システム1Aを搭載した車両100の要部を示す概略構成図である。本実施の形態3に従う電源システム1Aは、図1に示した電源システム1と比較して、2つの蓄電装置4-1,4-2に代えて、3つの蓄電装置4-1~4-3を備える点で異なる。
Claims (9)
- 各々が充放電可能に構成された複数の蓄電装置(4-1,4-2)を有する電源システムであって、
負荷装置と電気的に接続された電力線対(MPL,MNL)と、
前記複数の蓄電装置(4-1,4-2)と前記電力線対(MPL,MNL)との間にそれぞれ設けられ、各々が前記電力線対(MPL,MNL)と対応の前記蓄電装置との間で電圧変換動作を行なうように構成された複数の電圧変換部(6-1,6-2)と、
前記複数の蓄電装置(4-1,4-2)にそれぞれ対応付けられ、対応の前記蓄電装置の出力電圧を検出するための複数の電圧検出部(12-1,12-2)と、
前記負荷装置からの要求電力に応じて前記複数の電圧変換部(6-1,6-2)を制御する制御装置(30)とを備え、
前記複数の蓄電装置(4-1,4-2)に含まれる第1および第2の蓄電装置のうち、一方の蓄電装置は他方の蓄電装置よりも電源電圧が第1の所定値だけ高くなるように構成され、
前記第1の所定値は、前記複数の電圧検出部(12-1,12-2)の検出値に含まれ得る誤差に応じて定められる、電源システム。 - 前記制御装置(30)は、前記負荷装置からの要求電力が閾値以下となるときには、前記複数の電圧検出部(12-1,12-2)により検出される前記複数の蓄電装置(4-1,4-2)の出力電圧に基づいて、前記複数の電圧変換部(6-1,6-2)に含まれる第1および第2の電圧変換部のうち、各々に対応する前記蓄電装置の出力電圧が大きい方の前記電圧変換部の電圧変換動作を実行させるとともに、他方の前記電圧変換部の電圧変換動作を停止させるように前記第1および第2の電圧変換部を制御する、請求の範囲第1項に記載の電源システム。
- 前記第1の所定値は、前記第1および第2の蓄電装置の各々に対応する前記電圧検出部の検出値に含まれ得る誤差の合計値よりも高くなるように定められる、請求の範囲第2項に記載の電源システム。
- 前記複数の電圧変換部(6-1,6-2)の各々は、
インダクタと直列接続された上で、前記電力線対(MPL,MNL)の一方の電力線と対応の前記蓄電装置の一方極との間に配置されたスイッチング素子と、
前記電力線対(MPL,MNL)の他方の電力線と対応の前記蓄電装置の他方極とを電気的に接続するための配線を含み、
前記制御装置(30)は、電圧変換動作を実行中の前記電圧変換部について、前記スイッチング素子をオン状態に維持する、請求の範囲第2項に記載の電源システム。 - 各々が充放電可能に構成された複数の蓄電装置(4-1,4-2)を有する電源システムであって、
負荷装置と電気的に接続された電力線対(MPL,MNL)と、
前記複数の蓄電装置(4-1,4-2)と前記電力線対(MPL,MNL)との間にそれぞれ設けられ、各々が前記電力線対(MPL,MNL)と対応の前記蓄電装置との間で電圧変換動作を行なうように構成された複数の電圧変換部(6-1,6-2)と、
前記複数の蓄電装置(4-1,4-2)にそれぞれ対応付けられ、対応の前記蓄電装置の電流を検出するための複数の電流検出部(10-1,10-2)と、
前記負荷装置からの要求電力に応じて前記複数の電圧変換部(6-1,6-2)を制御する制御装置(30)とを備え、
前記複数の蓄電装置(4-1,4-2)に含まれる第1および第2の蓄電装置のうち、一方の蓄電装置は他方の蓄電装置よりも電源電圧が第2の所定値だけ高くなるように構成され、
前記第2の所定値は、前記複数の電流検出部(10-1,10-2)の検出値に含まれ得る誤差に応じて定められる、電源システム。 - 前記制御装置(30)は、前記負荷装置からの要求電力が閾値以下となるときには、前記複数の電圧変換部(6-1,6-2)の各々について、所定期間前記電力線対(MPL,MNL)と対応の前記蓄電装置とを電気的に導通状態とするとともに、前記所定期間において前記複数の電流検出部(10-1,10-2)に含まれる第1の電流検出部により検出される、対応の前記蓄電装置の電流に基づいて、前記複数の電圧変換部(6-1,6-2)に含まれる第1および第2の電圧変換部のうち、各々に対応する前記蓄電装置の出力電圧が高い方の前記電圧変換部の電圧変換動作を実行させるとともに、他方の前記電圧変換部の電圧変換動作を停止させるように前記第1および第2の電圧変換部を制御する、請求の範囲第5項に記載の電源システム。
- 前記制御装置(30)は、前記所定期間において前記第1の電流検出部により検出される対応の前記蓄電装置の電流の極性に基づいて、各々に対応する前記蓄電装置の出力電圧が高い方の前記電圧変換部を選択し、
前記第2の所定値は、前記第1の電流検出部の検出値に含まれ得る誤差を、前記第1の蓄電装置の出力電圧と前記第2の蓄電装置の出力電圧との電圧差に換算した値よりも高くなるように定められる、請求の範囲第6項に記載の電源システム。 - 前記複数の電圧変換部(6-1,6-2)の各々は、
インダクタと直列接続された上で、前記電力線対(MPL,MNL)の一方の電力線と対応の前記蓄電装置の一方極との間に配置されたスイッチング素子と、
前記電力線対(MPL,MNL)の他方の電力線と対応の前記蓄電装置の他方極とを電気的に接続するための配線を含み、
前記制御装置(30)は、電圧変換動作を実行中の前記電圧変換部について、前記スイッチング素子をオン状態に維持する、請求の範囲第6項に記載の電源システム。 - 請求の範囲第1項から請求の範囲第8項のいずれかに記載の電源システムと、
前記負荷装置として、前記電源システムから電力を受けて車両(100)の駆動力を発生する駆動力発生部(2)とを備える車両。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2009/058662 WO2010128550A1 (ja) | 2009-05-08 | 2009-05-08 | 電源システムおよびそれを備える車両 |
EP09844337.7A EP2428388A4 (en) | 2009-05-08 | 2009-05-08 | POWER SUPPLY SYSTEM AND VEHICLE EQUIPPED WITH THE POWER SUPPLY SYSTEM |
US13/259,416 US8598734B2 (en) | 2009-05-08 | 2009-05-08 | Power supply system and vehicle equipped with the same |
CN200980159164.6A CN102421630B (zh) | 2009-05-08 | 2009-05-08 | 电源***及具备该电源***的车辆 |
JP2011512282A JP5287983B2 (ja) | 2009-05-08 | 2009-05-08 | 電源システムおよびそれを備える車両 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2009/058662 WO2010128550A1 (ja) | 2009-05-08 | 2009-05-08 | 電源システムおよびそれを備える車両 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010128550A1 true WO2010128550A1 (ja) | 2010-11-11 |
Family
ID=43050063
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/058662 WO2010128550A1 (ja) | 2009-05-08 | 2009-05-08 | 電源システムおよびそれを備える車両 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8598734B2 (ja) |
EP (1) | EP2428388A4 (ja) |
JP (1) | JP5287983B2 (ja) |
CN (1) | CN102421630B (ja) |
WO (1) | WO2010128550A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013223349A (ja) * | 2012-04-17 | 2013-10-28 | Sony Corp | 充電装置、充電装置の制御方法、電動車両、蓄電装置および電力システム |
JP2014207831A (ja) * | 2013-04-16 | 2014-10-30 | 株式会社東芝 | 電気機関車制御装置 |
JP2015177740A (ja) * | 2014-03-17 | 2015-10-05 | 株式会社デンソー | 電力変換装置 |
JP2017077057A (ja) * | 2015-10-13 | 2017-04-20 | 本田技研工業株式会社 | 駆動装置及びその制御方法、並びに、輸送機器 |
CN109196761A (zh) * | 2016-06-02 | 2019-01-11 | 株式会社村田制作所 | 电源*** |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2774797B1 (en) * | 2011-11-04 | 2019-05-15 | Toyota Jidosha Kabushiki Kaisha | Power source system and vehicle provided therewith, and method of controlling power source system |
KR101957340B1 (ko) * | 2012-11-14 | 2019-03-12 | 삼성전자주식회사 | 전력 전달 장치. |
JP5652622B2 (ja) * | 2013-01-08 | 2015-01-14 | 三菱自動車工業株式会社 | 車両の異常診断装置 |
US8996227B2 (en) | 2013-01-11 | 2015-03-31 | Johnson Controls Technology Company | System and method for controlling voltage on a power network |
JP5729401B2 (ja) * | 2013-02-01 | 2015-06-03 | トヨタ自動車株式会社 | 電動車両 |
DE102013204894A1 (de) * | 2013-03-20 | 2014-09-25 | Robert Bosch Gmbh | Kraftfahrzeugbordnetz mit wenigstens zwei Energiespeichern, Verfahren zum Betreiben eines Kraftfahrzeugbordnetzes und Mittel zu dessen Implementierung |
US9391455B2 (en) * | 2013-08-29 | 2016-07-12 | Harmonic, Inc. | System for switching between power supply units |
CN103612571B (zh) * | 2013-11-29 | 2016-01-20 | 东风小康汽车有限公司重庆分公司 | 电动汽车蓄电池故障紧急控制*** |
KR20150091651A (ko) * | 2014-02-03 | 2015-08-12 | 삼성전자주식회사 | 전력장치 및 전력장치의 전력제공방법 |
JP2015217920A (ja) * | 2014-05-21 | 2015-12-07 | オムロンオートモーティブエレクトロニクス株式会社 | 車両用電源装置、車両用回生システム |
JP2015217919A (ja) * | 2014-05-21 | 2015-12-07 | オムロンオートモーティブエレクトロニクス株式会社 | 車両用電源装置、車両用回生システム |
US10427626B2 (en) * | 2015-02-05 | 2019-10-01 | Hitachi Automotive Systems, Ltd. | Vehicle control device |
CN105990896A (zh) * | 2015-02-13 | 2016-10-05 | 深圳市华思旭科技有限公司 | 电源控制电路、移动电源以及电连接装置 |
JP2017022872A (ja) * | 2015-07-10 | 2017-01-26 | トヨタ自動車株式会社 | 電源システム |
CN108025365B (zh) * | 2015-07-17 | 2022-06-03 | Ap&C高端粉末涂料公司 | 等离子体雾化金属粉末制造工艺及其*** |
JP6551089B2 (ja) * | 2015-09-11 | 2019-07-31 | 株式会社オートネットワーク技術研究所 | 車載用電源装置 |
US10833518B2 (en) * | 2015-09-22 | 2020-11-10 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Charge control method and device, and electronic device |
KR102280433B1 (ko) * | 2015-09-23 | 2021-07-22 | 삼성전자주식회사 | 전력 공급 회로 및 이를 포함하는 저장 장치 |
JP6614452B2 (ja) * | 2016-06-17 | 2019-12-04 | 株式会社オートネットワーク技術研究所 | リレー装置 |
JP6694592B2 (ja) * | 2016-07-07 | 2020-05-20 | 株式会社オートネットワーク技術研究所 | リレー装置 |
JP6705357B2 (ja) * | 2016-10-14 | 2020-06-03 | 株式会社オートネットワーク技術研究所 | 車載用のバックアップ装置 |
TWI624132B (zh) * | 2016-12-27 | 2018-05-11 | 飛宏科技股份有限公司 | 用於充電樁之智慧功率分配系統 |
JP6554151B2 (ja) * | 2017-08-31 | 2019-07-31 | 本田技研工業株式会社 | 車両の電源システム |
JP6545230B2 (ja) * | 2017-08-31 | 2019-07-17 | 本田技研工業株式会社 | 車両の電源システム |
CN107554344B (zh) * | 2017-09-18 | 2018-05-08 | 爱驰汽车有限公司 | 双源电池包的充放电管理方法和*** |
CN111149275B (zh) * | 2017-09-22 | 2023-09-12 | 株式会社村田制作所 | 蓄电装置 |
US11594895B2 (en) * | 2018-09-13 | 2023-02-28 | Honda Motor Co., Ltd. | Power supply system |
JP7010191B2 (ja) * | 2018-10-23 | 2022-02-10 | トヨタ自動車株式会社 | 二次電池システムおよび二次電池の充電制御方法 |
JP6935437B2 (ja) * | 2019-01-23 | 2021-09-15 | 矢崎総業株式会社 | 電源装置 |
JP7069075B2 (ja) * | 2019-03-26 | 2022-05-17 | 本田技研工業株式会社 | 電源システム |
EP4064517B1 (en) * | 2019-11-20 | 2024-07-03 | Honda Motor Co., Ltd. | Power supply system and method for controlling same |
JPWO2022024508A1 (ja) * | 2020-07-31 | 2022-02-03 | ||
KR20220153401A (ko) * | 2021-05-11 | 2022-11-18 | 현대자동차주식회사 | 전기구동 모빌리티의 전력 변환 시스템 및 그 제어 방법 |
US11837984B2 (en) * | 2021-05-14 | 2023-12-05 | Delphi Technologies Ip Limited | Dual supply dual control architecture |
CN115037011A (zh) * | 2022-04-19 | 2022-09-09 | 伏达半导体(合肥)有限公司 | 双电池充电装置、方法及其控制器 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06276609A (ja) | 1992-12-23 | 1994-09-30 | General Electric Co <Ge> | 電気駆動システム |
JP2003209969A (ja) | 2001-12-06 | 2003-07-25 | General Motors Corp <Gm> | 電動モータ電源管理システム |
JP2004116296A (ja) * | 2002-09-24 | 2004-04-15 | Honda Motor Co Ltd | 車両用電源装置 |
JP2007295720A (ja) * | 2006-04-25 | 2007-11-08 | Denso Corp | 車両用モータ装置 |
JP2008017661A (ja) * | 2006-07-07 | 2008-01-24 | Toyota Motor Corp | 電源システムおよびそれを備えた車両、電源システムの制御方法、ならびに電源システムの制御をコンピュータに実行させるためのプログラムを記録したコンピュータ読取可能な記録媒体 |
JP2008253064A (ja) * | 2007-03-30 | 2008-10-16 | Toyota Motor Corp | 電源回路の制御装置および制御方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07115704A (ja) * | 1993-10-14 | 1995-05-02 | Toyota Motor Corp | リターダ装置 |
CA2459696A1 (en) * | 2004-03-04 | 2005-09-04 | Tm4 Inc. | System and method for starting a combustion engine of a hybrid vehicle |
JP2006252445A (ja) * | 2005-03-14 | 2006-09-21 | Fujitsu Ltd | データ記憶装置及びデータ記憶装置のライト処理方法。 |
JP2006304390A (ja) * | 2005-04-15 | 2006-11-02 | Favess Co Ltd | ハイブリッド車両用電源装置 |
WO2007006121A1 (en) * | 2005-04-20 | 2007-01-18 | Mountain Power Inc. | Detecting the state-of-charge of a lithium ion battery in a hybrid electric vehicle |
JP2008017559A (ja) * | 2006-07-03 | 2008-01-24 | Toyota Motor Corp | 電圧変換装置およびそれを備えた車両 |
JP4466620B2 (ja) * | 2006-07-10 | 2010-05-26 | トヨタ自動車株式会社 | 電源システムおよびそれを備える車両 |
JP4842885B2 (ja) * | 2007-05-23 | 2011-12-21 | トヨタ自動車株式会社 | 車載機器制御システムおよび車両 |
US20090033253A1 (en) * | 2007-07-30 | 2009-02-05 | Gm Global Technology Operations, Inc. | Electric traction system for a vehicle having a dual winding ac traction motor |
-
2009
- 2009-05-08 US US13/259,416 patent/US8598734B2/en active Active
- 2009-05-08 JP JP2011512282A patent/JP5287983B2/ja not_active Expired - Fee Related
- 2009-05-08 WO PCT/JP2009/058662 patent/WO2010128550A1/ja active Application Filing
- 2009-05-08 EP EP09844337.7A patent/EP2428388A4/en not_active Withdrawn
- 2009-05-08 CN CN200980159164.6A patent/CN102421630B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06276609A (ja) | 1992-12-23 | 1994-09-30 | General Electric Co <Ge> | 電気駆動システム |
JP2003209969A (ja) | 2001-12-06 | 2003-07-25 | General Motors Corp <Gm> | 電動モータ電源管理システム |
JP2004116296A (ja) * | 2002-09-24 | 2004-04-15 | Honda Motor Co Ltd | 車両用電源装置 |
JP2007295720A (ja) * | 2006-04-25 | 2007-11-08 | Denso Corp | 車両用モータ装置 |
JP2008017661A (ja) * | 2006-07-07 | 2008-01-24 | Toyota Motor Corp | 電源システムおよびそれを備えた車両、電源システムの制御方法、ならびに電源システムの制御をコンピュータに実行させるためのプログラムを記録したコンピュータ読取可能な記録媒体 |
JP2008253064A (ja) * | 2007-03-30 | 2008-10-16 | Toyota Motor Corp | 電源回路の制御装置および制御方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2428388A4 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013223349A (ja) * | 2012-04-17 | 2013-10-28 | Sony Corp | 充電装置、充電装置の制御方法、電動車両、蓄電装置および電力システム |
JP2014207831A (ja) * | 2013-04-16 | 2014-10-30 | 株式会社東芝 | 電気機関車制御装置 |
JP2015177740A (ja) * | 2014-03-17 | 2015-10-05 | 株式会社デンソー | 電力変換装置 |
JP2017077057A (ja) * | 2015-10-13 | 2017-04-20 | 本田技研工業株式会社 | 駆動装置及びその制御方法、並びに、輸送機器 |
CN109196761A (zh) * | 2016-06-02 | 2019-01-11 | 株式会社村田制作所 | 电源*** |
Also Published As
Publication number | Publication date |
---|---|
US8598734B2 (en) | 2013-12-03 |
EP2428388A4 (en) | 2014-07-16 |
EP2428388A1 (en) | 2012-03-14 |
JP5287983B2 (ja) | 2013-09-11 |
US20120032505A1 (en) | 2012-02-09 |
CN102421630A (zh) | 2012-04-18 |
JPWO2010128550A1 (ja) | 2012-11-01 |
CN102421630B (zh) | 2014-05-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5287983B2 (ja) | 電源システムおよびそれを備える車両 | |
US11697352B2 (en) | Method and apparatus for charging multiple energy storage devices | |
JP6130634B2 (ja) | 電気車両を充電するための装置および方法 | |
JP4469000B2 (ja) | 電源システムおよびそれを備えた車両、ならびに電源システムの制御方法 | |
JP4501893B2 (ja) | 電源システムおよび車両 | |
JP4380772B2 (ja) | 電源装置およびそれを備えた車両、電源装置の制御方法、ならびにその制御方法をコンピュータに実行させるためのプログラムを記録したコンピュータ読取可能な記録媒体 | |
EP3614524B1 (en) | Power supply system and electric powered vehicle including power supply system, and method for controlling power supply system | |
CN109639137B (zh) | 电源装置 | |
WO2010140213A1 (ja) | 電動車両の電源システムおよびその制御方法 | |
WO2010089843A1 (ja) | 車両の充電システムおよび充電システムの制御方法 | |
JP5228824B2 (ja) | 車両の電源システムおよび車両 | |
CN103221246A (zh) | 车辆的充电装置 | |
WO2009011322A1 (ja) | 車両 | |
JP5109958B2 (ja) | 電源システムおよびそれを備えた車両、ならびに電源システムの制御方法 | |
WO2011155014A1 (ja) | 車両の電力制御装置および車両の電力制御方法 | |
JP2009284668A (ja) | 電源システムおよびそれを備えた車両 | |
JP5267092B2 (ja) | 電源システムおよびそれを備えた車両、ならびに電源システムの制御方法 | |
JP5910526B2 (ja) | 電源システムおよびそれを搭載した車両 | |
JP2010119170A (ja) | 車両の充電システム、電動車両および車両の充電制御方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980159164.6 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09844337 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011512282 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13259416 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
REEP | Request for entry into the european phase |
Ref document number: 2009844337 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009844337 Country of ref document: EP |