CN102742114B - Electrical power feeding system for electrical vehicle - Google Patents

Electrical power feeding system for electrical vehicle Download PDF

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Publication number
CN102742114B
CN102742114B CN201080062954.5A CN201080062954A CN102742114B CN 102742114 B CN102742114 B CN 102742114B CN 201080062954 A CN201080062954 A CN 201080062954A CN 102742114 B CN102742114 B CN 102742114B
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CN
China
Prior art keywords
power supply
vehicle
electric
current
motor vehicle
Prior art date
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Expired - Fee Related
Application number
CN201080062954.5A
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Chinese (zh)
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CN102742114A (en
Inventor
上野哲
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Publication of CN102742114A publication Critical patent/CN102742114A/en
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Expired - Fee Related legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/46—Accumulators structurally combined with charging apparatus
    • 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
    • B60L3/0069—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to the isolation, e.g. ground fault or leak current
    • 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
    • B60L3/0092—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption with use of redundant elements for safety purposes
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/18—Cables specially adapted for charging 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • 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
    • 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
    • B60L2260/00—Operating Modes
    • B60L2260/40—Control modes
    • B60L2260/50—Control modes by future state prediction
    • B60L2260/54—Energy consumption estimation
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using 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
    • Y02T10/70—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
    • 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
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • 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
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Abstract

An electrical power feeding system for vehicle comprises a distribution board, an electrical current measurement unit, and a control box. The distribution board comprises a breaker. The electrical current measurement unit is configured to measure electrical current value of the main electrical current applied to the breaker. The control box is configured to generate the electrical power feeding limitation signal when the measurement value of the main electrical current exceeds a first threshold. The electrical power feeding system for vehicle further comprises an electrical power feeding unit for vehicle. The electrical power feeding unit for vehicle is configured to supply the electrical power to the charging circuit of the electrical vehicle through the breaker. The electrical power feeding unit for vehicle is configured to limit the electrical current which is supplied to the electrical vehicle when the control box generates the electrical power feeding limitation signal.

Description

Electric vehicle power supply system
Technical field
The present invention relates to a kind of electric vehicle power supply system.
Background technology
In recent years, developed the motor vehicle such as plug-in hybrid vehicle (PHV:Plug-in Hyb rid Vehicle) and battery electric vehicle (BEV:Battery Electric Vehicle) etc.In addition, as the method for motor vehicle is charged, considered to this motor vehicle, to supply with commercial ac power (for example,, referring to patent documentation 1) via the supply socket of resident family.
patent documentation
Patent documentation 1: Japanese kokai publication hei 8-33121
Summary of the invention
the problem that invention will solve
The charging current of motor vehicle is contemplated to 20A ~ 30A in the situation that of 200V.This electric current shared percentage in the current sinking of general resident family is very large.In addition, in the situation that the behaviour in service of the electric equipment of supposition in general resident family, likely when motor vehicle is charged, use electric cooking equipment and heat, ventilation and the apparatus of air conditioning.The current consumption of electric cooking equipment is large.This heats, ventilation and the apparatus of air conditioning be take the equally very large air-conditioning of current consumption and described as example.Therefore,, in order to tackle above-mentioned behaviour in service, need to use introducing electric wire and the trunk circuit breaker that can adapt to the large magnitude of current.This means that reality is difficult to the electrically-charging equipment of motor vehicle to introduce existing resident family.In addition, exist motor vehicle in whole region, to obtain universal situation.In this case, in Ge resident family, likely, when motor vehicle is charged, use the large electric equipment of current consumption.This causes whole region that voltage drop and the power failure of source power supply occur.
The present invention realizes in order to address the above problem.The object of the present invention is to provide for solving the electric vehicle power supply system of following problem.One of them of these problems is the convenience while keeping making electrical installation and motor vehicle being charged.Another of these problems is that the peak value of current drain is limited.In addition, electric vehicle power supply system of the present invention can easily be introduced existing resident family.
for the scheme of dealing with problems
In order to address the above problem, the present invention discloses a kind of electric vehicle power supply system.This electric vehicle power supply system is for supplying with electric power to the motor vehicle with battery and charging circuit.Described battery is for generation of the electric power that described motor vehicle can be travelled.Described charging circuit, for described battery is charged, utilizes described charging circuit to charge to described battery thus.Described electric vehicle power supply system comprises circuit breaker components, current measuring unit, control assembly and vehicle power supply unit.Described current measuring unit is for measuring the current value of the trunk electric current that is applied to described circuit breaker components.Described control assembly, in the situation that the measurement current value of described trunk electric current surpasses first threshold, generates power supply restricting signal.Described power supply restricting signal comprises the indication for limiting being supplied to the electric power of described motor vehicle.Described vehicle is used for receiving electric power via described circuit breaker components with power supply unit, and this electric power is supplied to the described charging circuit of described motor vehicle.In the situation that described control assembly generates described power supply restricting signal, described vehicle limits being supplied to the electric current of described motor vehicle with power supply unit.
Preferably, described circuit breaker components is defined by trunk circuit breaker.
Preferably, described circuit breaker components comprises distribution panelboard, and wherein, described distribution panelboard comprises trunk circuit breaker and branch circuit breaker.Described current measuring unit measurement is applied to the current value of the described trunk electric current of described trunk circuit breaker.Described vehicle receives electric power with power supply unit via described branch circuit breaker.Described vehicle is supplied to this electric power with power supply unit the described charging circuit of described motor vehicle.In the situation that described control assembly generates described power supply restricting signal, described vehicle limits being supplied to the electric power of described motor vehicle with power supply unit.
Preferably, described vehicle comprises that with power supply unit the mode dismantling is mounted to the bonder terminal of the connector of described motor vehicle.Described vehicle receives electric power with power supply unit via described circuit breaker components.Described vehicle is supplied to this electric power via described bonder terminal the described charging circuit of described motor vehicle with power supply unit.
That is, a kind of electric vehicle power supply system, for supplying with electric power to the motor vehicle with battery and charging circuit.Described battery is for generation of the electric power that described motor vehicle can be travelled.In the situation that described charging circuit receives described electric power, described charging circuit charges to described battery.Described electric vehicle power supply system comprises distribution panelboard, current measuring device, control assembly and vehicle power supply unit.Described distribution panelboard comprises trunk circuit breaker and branch circuit breaker.Described current measuring device is for measuring the current value of the trunk electric current that is applied to described trunk circuit breaker.Described control device, in the situation that the value of described trunk electric current surpasses first threshold, generates power supply restricting signal, and wherein said power supply restricting signal comprises the indication for limiting being supplied to the electric power of described motor vehicle.Described vehicle comprises that with power supply unit the mode dismantling is mounted to the bonder terminal of the vehicle-side connector of described motor vehicle.Described vehicle receives electric power with power supply unit via described branch circuit breaker.Described vehicle is supplied to described charging circuit via described bonder terminal by this electric power with power supply unit.In the situation that described control device generates described power supply restricting signal, described vehicle limits being supplied to the electric current of described motor vehicle with power supply unit.
Preferably, described circuit breaker components has current rating.Described first threshold is set to higher than described current rating.
Preferably, described trunk circuit breaker has current rating.Described first threshold is set to higher than described current rating.
Preferably, described vehicle comprises disconnection member with power supply unit.Described disconnection member is for cutting off in order to supply with the supply path of electric power to described motor vehicle.In the situation that described control assembly generates described power supply restricting signal, described vehicle cuts off described supply path with power supply unit, and described vehicle limits being supplied to the electric power of described motor vehicle with power supply unit thus.
Preferably, described vehicle comprises leakage indicator with power supply unit.Described leakage indicator detects whether there is electric leakage for the electric current based on the described supply path of flowing through.In the situation that described leakage indicator detects electric leakage, described leakage indicator makes supply path described in described disconnection cutting of members.
Preferably, described vehicle comprises signal transmitting unit with power supply unit.Described signal transmitting unit is for the described charging circuit transmitted signal to described motor vehicle.In the situation that described control assembly generates described power supply restricting signal, described vehicle makes described signal transmitting unit send charging stop signal to described charging circuit with power supply unit.Described charging stop signal comprises for stopping the indication to described electric vehicle power supply.Thus, described vehicle limits being supplied to the electric power of described motor vehicle with power supply unit.
Preferably, described vehicle comprises signal transmitting unit with power supply unit.Described signal transmitting unit is for the described charging circuit transmitted signal to described motor vehicle via described bonder terminal.In the situation that described control assembly generates described power supply restricting signal, described vehicle makes described signal transmitting unit send charging stop signal to described charging circuit with power supply unit.Described charging stop signal comprises the indication for stopping charging.Thus, to being supplied to the electric current of described motor vehicle, limit.
Preferably, described vehicle comprises signal transmitting unit with power supply unit.Described signal transmitting unit is for the described charging circuit transmitted signal to described motor vehicle.In the situation that described control assembly generates described power supply restricting signal, described vehicle makes described signal transmitting unit send electric current dropping signal to described charging circuit with power supply unit.Described electric current dropping signal comprises the indication declining for making to be supplied to the electric current of described motor vehicle.Thus, to being supplied to the electric current of described motor vehicle, limit.
Preferably, described vehicle comprises signal transmitting unit with power supply unit.Described signal transmitting unit is for the described charging circuit transmitted signal to described motor vehicle via described bonder terminal.In the situation that described control assembly generates described power supply restricting signal, described vehicle makes described signal transmitting unit send electric current dropping signal to described charging circuit with power supply unit.Described electric current dropping signal comprises the indication declining for making to be supplied to the electric current of described motor vehicle.Thus, to being supplied to the electric current of described motor vehicle, limit.
Preferably, in the situation that the measurement current value of described trunk electric current surpass described first threshold state continuance very first time section, described control assembly limits being supplied to the electric power of described motor vehicle.
Preferably, in the situation that the measurement current value that described current measuring unit measures surpass Second Threshold state continuance predetermined amount of time, described control assembly is sent to described vehicle power supply unit by described power supply restricting signal.Described Second Threshold is set to lower than described first threshold.
Preferably, described predetermined amount of time is set to be longer than described very first time section.
Preferably, described Second Threshold is set to be equal to or greater than described current rating.
Preferably, in the situation that described vehicle with power supply unit make to be supplied under the state that the electric current of described motor vehicle declines, measure current value lower than the state continuance of the 3rd threshold value special time period, described control assembly generates power supply restriction cancellation signal, wherein, described the 3rd threshold value is lower than described first threshold.Described power supply restriction cancellation signal comprises for removing the indication to the power supply restriction of described motor vehicle.Described vehicle is removed the power supply restriction to described motor vehicle with power supply unit based on described power supply restriction cancellation signal.
Preferably, met first condition and second condition the two in the situation that, described control assembly is used for generating power supply restriction cancellation signal.This power supply restriction cancellation signal comprises for removing the indication to the power supply restriction of motor vehicle.To be vehicle make to be supplied to power supply unit the condition that the electric current of motor vehicle declines to this first condition.This second condition is to measure current value lower than the condition of predetermined the 3rd threshold value.By the 3rd threshold value setting, be lower than described first threshold.Vehicle is used for removing the power supply restriction to described motor vehicle based on power supply restriction cancellation signal with power supply unit.
Preferably, by described the 3rd threshold value setting, be lower than described current rating.
Preferably, in the situation that described vehicle with power supply unit stop under the state of described electric vehicle power supply, measure current value lower than the state continuance of the 3rd threshold value special time period, described control assembly generates power supply restriction cancellation signal, wherein, described the 3rd threshold value is lower than described first threshold.Described power supply restriction cancellation signal comprises for removing the indication to the power supply restriction of described motor vehicle.Described vehicle is removed the power supply restriction to described motor vehicle with power supply unit based on described power supply restriction cancellation signal.
In other words, preferably, in the situation that control unit is confirmed to meet first condition and second condition simultaneously, this control unit generates power supply restriction cancellation signal.This first condition is that vehicle stops the condition to electric vehicle power supply with power supply unit.This second condition is to measure electric current lower than the condition of the 3rd threshold value, and wherein the 3rd threshold value is lower than first threshold.Vehicle comes removing the power supply restriction of motor vehicle based on power supply restriction cancellation signal with power supply unit.
Preferably, in the situation that described control assembly generates described power supply restricting signal, described vehicle limits being supplied to the electric current of described motor vehicle with power supply unit, so that described trunk electric current is lower than described current rating.
Preferably, described control assembly is to be configured in the control unit in power supply unit for described vehicle.
Preferably, described control assembly is control device.
Preferably, described electric vehicle power supply system is for supplying with electric power to the motor vehicle with battery and charging circuit.
In addition, preferably, described electric vehicle power supply system is for supplying with electric power to the first electric equipment and the second electric equipment.Described control assembly is defined as the first priority by the priority of described the first electric equipment.Described control assembly is defined as the second priority by the priority of described the second electric equipment.Described control assembly is defined as the 3rd priority by the priority of described motor vehicle.Described the 3rd priority is lower than described the second priority.Described the second priority is lower than described the first priority.In the situation that described control assembly generates described power supply restricting signal, described vehicle limits being supplied to the electric current of the described motor vehicle with described the 3rd priority with power supply unit.In the situation that described vehicle limits being supplied to the electric current of described motor vehicle with power supply unit, described control assembly is confirmed the first restrictive condition.In the situation that described control assembly generates described power supply restricting signal under described the first restrictive condition, described vehicle limits being supplied to the electric power of described second electric equipment with described the second priority with power supply unit.
In addition, preferably, described electric vehicle power supply system is for supplying with electric power to a plurality of electric equipments.Described control assembly is determined described a plurality of electric equipment priority separately.Described control assembly is defined as the minimum priority in described motor vehicle and described a plurality of electric equipment by the priority of described motor vehicle.In the situation that described control assembly generates described power supply restricting signal, described vehicle limits being supplied to the electric power of the described motor vehicle with described minimum priority with power supply unit.In the situation that described vehicle limits being supplied to the electric power of the described motor vehicle with described minimum priority with power supply unit, described control assembly is confirmed the first restrictive condition.In the situation that described control assembly generates described power supply restricting signal under described the first restrictive condition, described vehicle with power supply unit according to limiting being supplied to the electric power of electric equipment to thering is the order of the electric equipment of high priority from thering is the electric equipment of described minimum priority in described a plurality of electric equipments.
the effect of invention
Following structure makes can be with respect to the charging of battery is preferentially used to the electric equipment in resident family: " in the situation that trunk electric current is greater than first threshold, control unit generates power supply restricting signal for power supply unit for vehicle " and " vehicle limits being supplied to the electric current of motor vehicle based on the restricting signal of powering with power supply unit ".For example, the impact that the Interim use of electric cooking equipment produces everyday life is large.As a comparison, to the charging of the battery of motor vehicle, continue to such an extent that the time is longer.Therefore, very little for the temporary limit impact that charging produces on battery of the power supply of battery.Therefore,, in the situation that trunk electric current surpasses first threshold, to being supplied to the electric power of motor vehicle, limit.Thereby the power supply of the electric equipment in Shi Dui resident family is able to preferentially.As a result, suppressed the peak value of trunk electric current, this structure makes to keep the convenience of daily life thus.In addition, due to the inhibition to the peak value of trunk electric current, even thereby motor vehicle in whole region, popularized, still can suppress the peak value of the current drain in whole region.Therefore, can stably supply with electric power.
In addition, vehicle makes to limit the electric current that is supplied to motor vehicle by this structure that power supply unit has the disconnection member that is arranged in supply path.Therefore, limit the situation of charging current compare with the charging circuit that utilizes motor vehicle, this structure makes this system without adopting the telecommunication circuit communicating for the charging circuit with motor vehicle.That is, this structure makes to reduce the cost of power supply unit for vehicle.
In addition, in the situation that adopt the leakage indicator for detection of electric leakage, when this leakage indicator detects electric leakage, this leakage indicator can be used disconnection member.
In addition, thereby make charging circuit stop the power supply unit for vehicle of charging in the situation that employing is used for that charging stop signal is sent to motor vehicle, can stop to electric vehicle power supply.
In addition, in the situation that adopt for electric current dropping signal being sent to the power supply unit for vehicle of the charging circuit of motor vehicle, can reduce the electric current that is supplied to charging circuit.Thereby, can limit being supplied to the electric power of motor vehicle.
In addition, " in the situation that supplied with the electric current that is greater than Second Threshold and is less than first threshold, to being supplied to the electric current of motor vehicle, limit " this structure adopting, even if trunk electric current, lower than first threshold, also can suppress the peak value of trunk electric current.
In addition, adopting " in the situation that make to be supplied to trunk electric current under the state that the electric current of motor vehicle declines lower than the state continuance of the 3rd threshold value special time period, remove current limit " this structure, can utilize and limit previous electric current battery is charged being supplied to the electric current of motor vehicle.
In addition, " in the situation that stopped to trunk electric current under the state of electric vehicle power supply lower than the state continuance of the 3rd threshold value special time period, remove current limit " this structure adopting, can utilize and limit previous electric current battery is charged being supplied to the electric current of motor vehicle.
Accompanying drawing explanation
Fig. 1 illustrates the system construction drawing of the first embodiment.
Fig. 2 A ~ 2E illustrates the oscillogram of each part mentioned above.
Fig. 3 illustrates the system construction drawing of the second embodiment.
Fig. 4 A ~ 4C illustrates the oscillogram of each part mentioned above.
Fig. 5 A ~ 5D illustrates the oscillogram of the each several part of the 3rd embodiment.
Fig. 6 A ~ 6D illustrates the oscillogram of the each several part of the 4th embodiment.
Fig. 7 illustrates the system construction drawing of the 5th embodiment.
Fig. 8 illustrates the system construction drawing of the 6th embodiment.
Fig. 9 A ~ 9F illustrates the oscillogram of each part mentioned above.
Embodiment
Below with reference to accompanying drawing, various embodiments of the present invention are described.
the first embodiment
With reference to figure 1 and Fig. 2 A ~ 2E, the first embodiment of the present invention is described.Fig. 1 illustrates the block diagram of the electric vehicle power supply system of the first embodiment.This electric vehicle power supply system comprises distribution panelboard 1, current measuring unit 2, control cabinet 3 and power supply unit 4 for vehicle.Distribution panelboard 1 is configured in the H of resident family.Distribution panelboard 1 comprises trunk circuit breaker 11 and branch circuit breaker 12.Current measuring unit 2 is realized by current transformer.Current measuring unit 2 is for measuring the trunk electric current I 1 that flows into trunk circuit breaker 11.Control cabinet (control unit) 3, in the situation that the current value that current measuring unit 2 measures surpasses predetermined first threshold, generates power supply restricting signal.This power supply restricting signal represents for limiting the indication to the power supply of motor vehicle 50.Vehicle with power supply unit 4 for receiving commercial ac power power.Vehicle is with power supply unit 4 for to electric vehicle power supply, and vehicle charges with 4 pairs of batteries of power supply unit thus.
Motor vehicle 50 be take battery electric vehicle and plug-in hybrid vehicle and is described as example.The body configurations of motor vehicle 50 has the connector 53 of vehicle side, and wherein connector 53 is removably mounted to the bonder terminal 5 of power supply unit 4 for vehicle.When charging circuit 51 receives commercial ac power power via the connector 53 of vehicle side and bonder terminal 5, charging circuit 51 converts this commercial ac power power to direct current power.51 pairs of batteries 52 of charging circuit charge.Battery 52 be take and described as example such as the battery of lithium ion battery etc.
Distribution panelboard 1 is arranged on the specific location in resident family.Distribution panelboard 1 comprises trunk circuit breaker 11 and a plurality of branch circuit breaker 12.Trunk circuit breaker 11 is connected with the trunk power line L1 that introduces the inside of the H of resident family.Branch circuit breaker 12 is connected with trunk circuit breaker via busbar 13, makes branch circuit breaker 12 be positioned at the downstream of trunk circuit breaker 11.
Control cabinet 3 compares for current value and the first threshold of trunk electric current that current measuring unit 2 is measured, and control cabinet 3 these current values of judgement are higher than first threshold or lower than first threshold thus.The current value measuring when current measuring unit 2 surpass first threshold state continuance during predetermined amount of time, control cabinet 3 exports power supply restricting signal to for vehicle power supply unit 4 via holding wire.This power supply restricting signal indication is stopped power supply.For example, the current rating of trunk circuit breaker 11 is 50A.The first threshold Th1 of control cabinet 3 is 55A.The first threshold Th1 of 55A is corresponding to 110% of current rating.When having met " current value that current measuring unit 2 measures be equal to or greater than 55A state continuance 1 second " time, control cabinet 3 exports power supply unit 4 for vehicle to by being used to indicate the power supply restricting signal stopping motor vehicle 50 power supplies.
Vehicle is for example arranged on the external wall of the resident family H adjacent with the parking stall of motor vehicle 50 with power supply unit 4.Vehicle receives commercial ac power power (for example, AC 200V) via branch line L2 from the branch circuit breaker 12 in distribution panelboard 1 with power supply unit 4.In addition, vehicle disposes charge cable CA with power supply unit 4.Charge cable CA comprises power line L3 and holding wire L4.One end of charge cable CA disposes bonder terminal 5.Bonder terminal 5 is removably mounted to the connector 53 of the vehicle side of motor vehicle 50.The length of cable of charge cable CA is enough to reach the motor vehicle 50 being parked in parking stall.Make the charge cable CA scalable drum (not shown) of reeling, take in thus charge cable CA.When using charge cable CA, from scalable drum, pull out this charge cable.
Vehicle comprises relay 41, zero-phase-sequence current transformer (ZCT) 42 and leakage indicator 43 with power supply unit 4.Relay 41 is configured in the middle part of the inner wire 40 that connects branch line L2 and power line L3.Relay 41 is for switching on and off the power supply to motor vehicle 50.Zero-phase-sequence current transformer 42 is for detection of the unsymmetrical current of the inner wire 40 of flowing through.Leakage indicator 43 detects electric leakage for the induced current that 42 inductions obtain based on zero-phase-sequence current transformer.When leakage indicator 43 detects electric leakage, leakage indicator 43 is disconnection by relay switch.In addition, vehicle comprises control unit 44, signal conversion unit 45, signal output unit 46 and power supply 47 with power supply unit 4.Control unit 44 generates charging control signal SA for the signal based on sending from control cabinet 3.Charging control signal SA is for controlling the charging of motor vehicle 50.Signal conversion unit 45 converts the signal of automobile industry standard to for the charging control signal SA that control unit 44 is generated.The signal of automobile industry standard is for example by Society of automotive engineers (SAE: registered trade mark) standardized signal.Signal output unit 46 is for being sent to motor vehicle by " having been changed the charging control signal SA of signal form by signal conversion unit 45 " via holding wire L4.Power supply 47 is for receiving commercial ac power power from distribution panelboard 1, and the power for operation of generation for making leakage indicator 43, control unit 44, signal conversion unit 45 and signal output unit 46 carry out work.The charging control signal SA sending from signal output unit 46 is the pulse signal of variable duty ratio.The charging circuit 51 of motor vehicle 50 is for determining the limits value of charging current value.The duty ratio of the limits value of this charging current value and charging control signal SA is proportional.
The operation of the electric power system in the present embodiment is described with reference to figure 2A ~ 2E.Fig. 2 A illustrates the measured value of the trunk electric current I 1 that current measuring unit 2 measures.Fig. 2 B illustrates the output signal of exporting from control cabinet 3.Fig. 2 C illustrates and from vehicle, with power supply unit 4, is sent to the duty ratio of the charging control signal SA of motor vehicle 50.Fig. 2 D illustrates charging current I2.In addition, the shadow region in Fig. 2 A represents to be included in the charging current I2 in trunk electric current I 1.Charging current I2 is for charging to motor vehicle 50.
Within the time period of t0 ~ moment in moment t1, vehicle is supplied with electric power with power supply unit 4 to motor vehicle 50, thus the battery of motor vehicle 50 is charged.In addition, within the time period of t0 ~ t1, in the H of resident family, also make electrical installation.The summation of " current drain of the electric equipment in the H of resident family " and " charging current I2 " is corresponding to the measured value of trunk electric current I 1.Trunk electric current I 1 is lower than first threshold Th1.Therefore, not output " power supply restricting signal " of control cabinet 3.In the present embodiment, first threshold Th1 is set as to 55A.The first threshold Th1 of 55A is corresponding to 110% of the current rating of trunk circuit breaker 11.That is, the current rating of trunk circuit breaker equals 50A.
At moment t1, in the H of resident family, bring into use the electric equipment that electric power consumption is large.As a result, the measured value of trunk electric current I 1 surpasses first threshold Th1 (55A).Control cabinet 3 is for successively comparing the measured value of trunk electric current I 1 and first threshold Th1, and the measured value of control cabinet 3 judgement trunk electric current I 1 is higher than first threshold Th1 or lower than first threshold Th1 thus.At moment t2, trunk electric current I 1 surpass first threshold Th1 state continuance predetermined amount of time Δ T1.Therefore,, at moment t2, control cabinet 3 is sent to power supply unit 4 for vehicle by " indication stops the power supply restricting signal S1 to motor vehicle 50 chargings ".
When vehicle with the control unit 44 of power supply unit 4 when moment t2 receives power supply restricting signal S1, control unit 44 generates to be used to indicate and makes charging current I2 drop to 0 charging control signal SA (in other words, be used to indicate make charging current I2 drop to 0 charging control signal SA be charging stop signal SA).The signal form of 45 couples of charging control signal SA of signal conversion unit is changed.Subsequently, signal output unit 46 is sent to motor vehicle 50 by charging control signal SA.
When the charging circuit 51 of motor vehicle 50 receives charging control signal SA from vehicle with power supply unit 4, the charging circuit 51 of motor vehicle 50 is recently controlled the current value of charging current I2 according to the duty of charging control signal SA.When the duty ratio of charging control signal SA is when the moment, t2 became 0%, vehicle makes charging current I2 be reduced to 0 with power supply unit 4.That is, the first threshold Th1 that (equals 55A's) is higher than the current rating of trunk circuit breaker 11.When applying to trunk circuit breaker 11 electric current that is equal to or greater than first threshold Th1, control cabinet 3 generates power supply restricting signal S1.Based on this power supply restricting signal S1, vehicle stops the battery of motor vehicle 50 to charge with power supply unit 4.Therefore,, after moment t2, trunk electric current I 1 is adjusted in current rating.As a result, can prevent that trunk circuit breaker 11 cuts off when applying overcurrent to trunk circuit breaker 11.
In addition, if the moment t3 of the electric equipment in the H of resident family after stopping the battery of motor vehicle 50 to charge rises in stopping, trunk electric current I 1 drops to the predetermined current value that is less than the 3rd threshold value Th3 (the 3rd threshold value Th3 is defined as restoring current value).When trunk electric current I 1 lower than the state continuance of the 3rd threshold value Th3 during special time period Δ T2, control cabinet 3 generates power supply restriction cancellation signal S2.The power supply restriction to motor vehicle 50 is removed in this power supply restriction cancellation signal S2 indication.
When vehicle with the control unit 44 of power supply unit 4 when moment t4 receives power supply restriction cancellation signal S2, control unit 44 generates charging control signal SA, and wherein this charging control signal SA is for being adjusted into the current value of charging current I2 the current value equating with current stops current value before.The signal form of 45 pairs of these charging control signals of signal conversion unit is changed.Subsequently, signal output unit 46 exports this charging control signal to motor vehicle 50.Result, at moment t4, the duty ratio of charging control signal SA change into the duty ratio that equates of duty ratio in time period before current stops (in other words, at moment t4, the duty ratio of charging control signal SA is changed into the duty ratio equating with the duty ratio of moment t2 in the time period before).As a result, the current value change of charging current I2 is the current value equating with the current value of current stops in the time period before.Like this, charging circuit 51 utilizes the current value equating with the current value of current stops in the time period before to charge to battery 52.In this case, the current drain of the electric equipment in the H of resident family declines.Therefore,, even if charging current I2 increases, the current value of trunk electric current I 1 is also lower than first threshold Th1.Therefore, continue motor vehicle 50 to power.
In the situation that " current rating of trunk circuit breaker is 50A " and " maximum of the charging current of motor vehicle 50 is 24A " can be set to 26A by the 3rd threshold value Th3.Yet, considering the additional margin of the 2A of current value, the 3rd threshold value Th3 is set to 24A.First threshold Th1 and the 3rd threshold value Th3 are that the specification of controller switching equipment and the specification of motor vehicle 50 that user considers resident family's side arranges arbitrarily.
As recognized by above-mentioned explanation, in the electric vehicle power supply system of the present embodiment, when the measured value of trunk electric current I 1 surpasses first threshold Th1, the control cabinet 3 that is defined as control device is sent to power supply unit 4 for vehicle by power supply restricting signal.Vehicle limits the power supply of motor vehicle 50 based on power supply restricting signal with power supply unit 4.Therefore,, with respect to the charging to motor vehicle, can preferentially use the electric equipment in the H of resident family.In other words, the electric equipment such as electric cooking equipment etc. is Interim use in life.Impact life being produced such as the electric equipment of electric cooking equipment etc. is remarkable.As a comparison, the charging for the battery of motor vehicle continues to such an extent that the time is longer.Therefore, on electric vehicle power supply to stop impact that the charging of this motor vehicle is produced very little temporarily.Therefore, when trunk electric current I 1 surpasses first threshold Th1, the power supply of restriction to motor vehicle 50.Thereby, preferential electric equipment power supply in the H of resident family.As a result, the peak value of trunk electric current can be suppressed, the convenience of life can be kept thus.In addition, even if suppress the peak value of trunk electric current I 1, motor vehicle is widely used in whole region, also can makes the peak value of the current drain in whole region decline.Therefore, this structure makes stably to supply with electric power.
As mentioned above, in the present invention, electric vehicle power supply system is for supplying with electric power to motor vehicle.This motor vehicle comprises battery and charging circuit.Charging circuit is for charging to battery.Electric vehicle power supply system of the present invention comprises distribution panelboard, current measuring unit, control unit and vehicle power supply unit.Distribution panelboard comprises the circuit breaker components with trunk circuit breaker and branch circuit breaker.Current measuring unit is for measuring the current value of the trunk electric current that is applied to trunk circuit breaker.Control unit is for determining first threshold.Control unit, in the situation that the current value measuring surpasses first threshold, generates power supply restricting signal.This power supply restricting signal comprises the indication for limiting being supplied to the electric power of motor vehicle.Vehicle comprises bonder terminal with power supply unit.This bonder terminal is removably mounted to the connector of motor vehicle.Vehicle is used for receiving alternating electromotive force from branch circuit breaker with power supply unit, and this alternating electromotive force is supplied to the charging circuit of motor vehicle via connector.In the situation that control unit generates power supply restricting signal, this control unit limits being supplied to the electric current of motor vehicle.
As a result, when trunk electric current surpasses first threshold, control unit is sent to vehicle power supply unit by power supply restricting signal.Based on this power supply restricting signal, vehicle limits being supplied to the electric current of motor vehicle with power supply unit.Therefore,, with respect to the charging to the battery of motor vehicle, can preferentially make electrical installation.In other words, can supply with the peak value that electric current suppresses trunk electric current by preferential electric equipment in resident family.The convenience that can keep as a result, daily life.In addition, even if motor vehicle is popularized in whole region, also can suppress the peak value of current drain.Therefore, can stably supply with electric power.
In addition, trunk circuit breaker has current rating.First threshold is set to higher than this current rating.Thereby, when trunk electric current surpasses first threshold, can think that trunk electric current surpasses the situation of current rating.Therefore,, when trunk electric current surpasses first threshold, can limit immediately the power supply to motor vehicle.In other words, can prevent that overcurrent is supplied to trunk circuit breaker continuously.As a result, can prevent that trunk circuit breaker from cutting off.
In the present embodiment, when trunk electric current I 1 surpass first threshold Th1 state continuance during special time period, stop motor vehicle 50 power supplies.Yet, also can in trunk electric current I 1, surpass the moment of first threshold Th1, stop immediately motor vehicle 50 power supplies.
As a comparison, preferably, control unit be configured to the current value measuring surpass first threshold state continuance generate power supply restricting signal during the time period (1sec) of 1 second.This is due to following reason.That is,, when starting electric equipment, likely there is overshoot.With this overshoot accordingly, trunk electric current is the instantaneous first threshold that surpasses likely.Stop immediately supplying with electric current to motor vehicle surpass first threshold in the situation that trunk electric current is instantaneous, this is also inadvisable.This is because charging circuit need to bear the load producing when electric current frequently changes.Therefore, preferably, in the situation that trunk electric current is not subject to the impact of the overshoot of this trunk electric current, control unit judges whether trunk electric current surpasses first threshold.
In the present embodiment, control unit in the situation that the current value measuring surpass first threshold state continuance very first time section, generate power supply restricting signal.This very first time section is set to the time period (1sec) of 1 second.Yet, be not limited to the time period that very first time section is set to 1 second.Can determine arbitrarily this very first time section.This is equally applicable to following examples.
the second embodiment
With reference to figure 3 and Fig. 4 A ~ 4C, the second embodiment of the present invention is described.Fig. 3 illustrates the system construction drawing of the present embodiment.Utilize identical Reference numeral to represent the assembly identical with the assembly of the first embodiment.Therefore, omitted the explanation for the identical assembly of the assembly with the first embodiment.
In the first embodiment, vehicle uses power supply unit 4 for receiving power supply restricting signals from control cabinet 3, and to motor vehicle 50, sends charging control signal SA based on this power supply restricting signal.Thereby vehicle can limit to charging current I2 charging circuit 51 with power supply unit 4.Yet in the present embodiment, vehicle also comprises relay 41 with power supply unit 4.Relay 41 is for making the power supply start/stop to motor vehicle 50.With the control unit 44 of power supply unit 4, the power supply restricting signal based on sending from control cabinet 3 disconnects relay 41 to vehicle.Thereby control unit 44 stops motor vehicle 50 power supplies.
The operation of the present embodiment is described with reference to figure 4A ~ 4C.Fig. 4 A illustrates the measured value of the trunk electric current that current measuring unit 2 measures.Fig. 4 B illustrates the output signal of exporting from control cabinet 3.Fig. 4 C illustrates the state that relay 41 connects or disconnects.The dash area of Fig. 4 A represents to be included in the charging current I2 in trunk electric current I 1.Charging current I2 is for charging to the battery of motor vehicle 50.
Within the time period of t0 ~ moment in moment t1, vehicle uses the relay 41 of power supply unit 4 in on-state.Therefore, vehicle is supplied with electric power with power supply unit 4 to motor vehicle 50, thus the battery of motor vehicle 50 is charged.In addition, within the time period of t0 ~ t1, in the H of resident family, also make electrical installation.The summation of " current drain of the electric equipment in the H of resident family " and " charging current I2 " is corresponding to the measured value of trunk electric current I 1.Trunk electric current I 1 is lower than first threshold Th1.Therefore, not output " power supply restricting signal " of control cabinet 3.In the present embodiment, first threshold Th1 is set as to 55A.The first threshold Th1 of 55A is corresponding to 110% of the current rating of trunk circuit breaker 11.That is, the current rating of trunk circuit breaker equals 50A.
At moment t1, in the H of resident family, bring into use the electric equipment that electric power consumption is large.As a result, the measured value of trunk electric current I 1 surpasses first threshold Th1 (55A).Control cabinet 3 is for successively comparing the measured value of trunk electric current I 1 and first threshold Th1, and the measured value of control cabinet 3 judgement trunk electric current I 1 is higher than first threshold Th1 or lower than first threshold Th1 thus.At moment t2, " trunk electric current I 1 surpasses the state of first threshold Th1 " continued predetermined amount of time Δ T1.Therefore,, at moment t2, control cabinet 3 is sent to power supply unit 4 for vehicle by " being used to indicate the power supply restricting signal S1 stopping motor vehicle 50 chargings ".At moment t2, vehicle receives power supply restricting signal S1 with the control unit 44 of power supply unit 4.Thereby control unit 44 disconnects relay 41, stop thus motor vehicle 50 power supplies.
Like this, when being applied to the electric current higher than first threshold Th1 (55A) of trunk circuit breaker 11 and having continued the time period of 1 second, with power supply unit 4, the power supply restricting signal S1 based on sending from control cabinet 3 stops to motor vehicle 50 supplying charging current I2 vehicle.Therefore, trunk electric current T1 is adjusted in current rating.Thereby, can prevent that trunk circuit breaker 11 cuts off when applying overcurrent to trunk circuit breaker 11.
In addition, if the moment t3 of the electric equipment in the H of resident family after stopping the battery of motor vehicle 50 to charge rises in stopping, trunk electric current I 1 drops to the predetermined current value that is less than the 3rd threshold value Th3 (the 3rd threshold value Th3 is defined as restoring current value).When trunk electric current I 1 lower than the state continuance of the 3rd threshold value Th3 during special time period Δ T2, control cabinet 3 generates power supply restriction cancellation signal S2.The power supply restriction to motor vehicle 50 is removed in this power supply restriction cancellation signal S2 indication.When vehicle receives power supply restriction cancellation signal S2 with the control unit 44 of power supply unit 4, control unit 44 is connected relay 41.Thereby vehicle is powered to motor vehicle 50 with power supply unit 4.Like this, the charging circuit 51 of this motor vehicle restarts battery 51 to charge.In this case, the current drain of the electric equipment in the H of resident family declines.Therefore,, even if charging current I2 increases, trunk electric current I 1 is also lower than first threshold Th1.Therefore, continue motor vehicle 50 to power.
In the situation that " current rating of trunk circuit breaker is 50A " and " maximum of the charging current of motor vehicle 50 is 24A " can be set to 26A by the 3rd threshold value Th3.Yet, consider the additional margin of the 2A of current value, therefore the 3rd threshold value Th3 is set to 24A.First threshold Th1 and the 3rd threshold value Th3 are that user considers that the specification of the controller switching equipment in resident family and the specification of motor vehicle 50 arrange arbitrarily.
As recognized by above explanation, in the electric vehicle power supply system of the present embodiment, when the measured value of trunk electric current I 1 surpasses first threshold Th1, the control cabinet 3 that is defined as control device sends power supply restricting signal to vehicle with power supply unit 4.Vehicle with power supply unit 4 for make relay 41 disconnect based on this power supply restricting signal.As a result, vehicle stops electric vehicle power supply with power supply unit 4.Therefore,, with respect to the charging to motor vehicle, can preferentially use the electric equipment in the H of resident family.In other words, the electric equipment such as electric cooking equipment etc. is Interim use in life.Therefore the impact, such as the electric equipment of electric cooking equipment etc., life being produced is remarkable.As a comparison, to the charging of the battery of motor vehicle, continue to such an extent that the time is longer.Therefore, on electric vehicle power supply to stop impact that the charging of this motor vehicle is produced very little temporarily.Therefore, when trunk electric current I 1 surpasses first threshold Th1, the power supply of restriction to motor vehicle 50.Thereby, preferential electric equipment power supply in the H of resident family.As a result, the peak value of trunk electric current can be suppressed, the convenience of life can be kept thus.In addition, even if suppress the peak value of trunk electric current I 1, motor vehicle is widely used in whole region, also can makes the peak value of the current drain in whole region decline.Therefore, this structure makes stably to supply with electric power.
That is, in the present embodiment, vehicle comprises disconnection member with power supply unit.This disconnection member is used for cutting off supply path.When control unit generates power supply restricting signal, this disconnects cutting of members supply path.Thereby, limited the electric current that is supplied to motor vehicle.
As a result, when trunk electric current surpasses the current rating of trunk circuit breaker, limit immediately the power supply to motor vehicle.That is, can prevent to trunk circuit breaker, applying overcurrent continuously.As a result, can prevent that trunk circuit breaker from cutting off.
In the present embodiment, when trunk electric current I 1 surpass first threshold Th1 state continuance during special time period, stop motor vehicle 50 power supplies.Yet, also can in trunk electric current I 1, surpass the moment of first threshold Th1, stop immediately motor vehicle 50 power supplies.
the 3rd embodiment
With reference to figure 5A ~ 5D, the third embodiment of the present invention is described.The assembly of the present embodiment is identical with the assembly of the first embodiment.Therefore, omitted explanation and the illustration for these assemblies.
In the first embodiment, when trunk electric current I 1 surpass first threshold Th1 state continuance during special time period, vehicle stops motor vehicle 5 to power with power supply unit 4.Yet, in the present embodiment, when trunk electric current I 1 surpass first threshold Th1 state continuance during special time period, vehicle reduces the current value of charging current I2 with power supply unit 4.
The operation of the present embodiment is described with reference to figure 5A ~ 5D.Fig. 5 A illustrates the measured value of the trunk electric current I 1 that current measuring unit 2 measures.Fig. 5 B illustrates the output signal of exporting from control cabinet 3.Fig. 5 C illustrates and from vehicle, with power supply unit 4, is sent to the duty ratio of the charging control signal SA of motor vehicle.Fig. 5 D illustrates charging current I2.
Within the time period of t0 ~ moment in moment t1, vehicle is supplied with electric power with power supply unit 4 to motor vehicle 50, thus the battery of motor vehicle 50 is charged.In addition, within the time period of t0 ~ t1, in the H of resident family, also make electrical installation.The summation of " current drain of the electric equipment in the H of resident family " and " charging current I2 " is corresponding to the measured value of trunk electric current I 1.Trunk electric current I 1 is lower than first threshold Th1.Therefore, not output " power supply restricting signal " of control cabinet 3.In the present embodiment, first threshold Th1 is set as to scheduled current (60A).The first threshold Th1 with predetermined current value is greater than and 110% of the current rating of trunk circuit breaker 11 corresponding current value.That is, the current rating of trunk circuit breaker for example equals 50A.
At moment t1, in the H of resident family, bring into use the electric equipment that electric power consumption is large.As a result, the measured value of trunk electric current I 1 surpasses first threshold Th1 (60A).Control cabinet 3 is for successively comparing the measured value of trunk electric current I 1 and first threshold Th1, and the measured value of control cabinet 3 judgement trunk electric current I 1 is higher than first threshold Th1 or lower than first threshold Th1 thus.At moment t2, " trunk electric current I 1 surpasses the state of first threshold Th1 " continued predetermined amount of time Δ T1.Therefore,, at moment t2, control cabinet 3 is sent to power supply unit 4 for vehicle by " comprising for making the power supply restricting signal S3 of the indication that charging current I2 declines ".
When vehicle with the control unit 44 of power supply unit 4 when moment t2 receives power supply restricting signal S3, control unit 44 generates and is used to indicate the charging control signal SA (in other words, be used to indicate make the charging control signal SA of charging current I2 decline dI1 be charging stop signal SA) that makes charging current decline dI1.First threshold Th1 exceeds 10A than the current rating of trunk circuit breaker 11.According to this, arrange, consider the surplus of 2A, the reduction dI1 of electric current is set to 12A.Until in the constantly time period of t1, in the situation that vehicle has sent for permitting 51 pairs of batteries of charging circuit to be not more than the signal of the charging of 30A with power supply unit, 51 pairs of batteries of charging circuit of motor vehicle 50 are not more than the charging of 30A.Vehicle comprises the current detector 48 of being realized by current transformer with power supply unit.Current detector 48 is for detection of the electric current of the inner wire 40 of flowing through.The testing result producing based on current detector 48, vehicle generates charging control signal SA with power supply unit 4, and wherein this charging control signal SA is used to indicate the current value of charging current I2 is adjusted into current charging current value and compares the current value that has reduced dI1.The signal form of 45 couples of charging control signal SA of signal conversion unit is changed, and from signal output unit 46, exports charging control signal SA to motor vehicle 50.
When the charging circuit 51 of motor vehicle 50 receives charging control signal SA from vehicle with power supply unit 4, the charging circuit 51 of motor vehicle 50 is recently controlled the current value of charging current I2 according to the duty of charging control signal SA.When the duty ratio of charging control signal SA is when moment t2 changes, vehicle recently makes charging current I2 reduce with power supply unit 4 according to the duty after changing.As a result, the charging current I2 dI1 that declined.That is, the first threshold Th1 that (equals 60A's) is higher than the current rating of trunk circuit breaker 11.When being applied to the electric current that is equal to or greater than first threshold Th1 of trunk circuit breaker 11 and having continued 1 second, control cabinet 3 generates power supply restricting signal S3.Based on this power supply restricting signal S3, vehicle makes " being supplied to the charging current I2 of motor vehicle 50 " with power supply unit 4, and dI1 has declined.Thereby, trunk electric current I 1 dI1 that declined, trunk electric current I 1 is equal to or less than 48A thus.Therefore, trunk electric current I 1 is adjusted in current rating.Thereby, can prevent that trunk circuit breaker 11 cuts off when applying overcurrent to trunk circuit breaker 11.In addition, although be supplied to the current value of motor vehicle 50, decline, can continue battery to charge, and can not stop battery charging.
In addition, if the moment t3 of the electric equipment in the H of resident family after stopping the battery of motor vehicle 50 to charge rises in stopping, trunk electric current I 1 drops to the predetermined current value that is less than the 3rd threshold value Th3 (the 3rd threshold value Th3 is defined as restoring current value).When trunk electric current I 1 lower than the state continuance of the 3rd threshold value Th3 during special time period Δ T2, control cabinet 3 generates power supply restriction cancellation signal S4.The power supply restriction to motor vehicle 50 is removed in this power supply restriction cancellation signal S4 indication.
When vehicle with the control unit 44 of power supply unit 4 when moment t4 receives power supply restriction cancellation signal S4, control unit 44 generates for making current charging current I2 increase the charging control signal SA of dI1.The signal form of 45 pairs of these charging control signals of signal conversion unit is changed.Subsequently, signal output unit 46 exports this charging control signal to motor vehicle 50.The charging circuit 51 of motor vehicle 50 is recently adjusted charging current for the duty of the charging control signal SA based on sending with power supply unit 4 from vehicle.Thereby, at moment t4, (in other words the duty ratio of charging control signal SA changes into the duty ratio that equates with duty ratio in time period before electric current declines, at moment t4, the duty ratio of charging control signal SA is changed into the duty ratio equating with the duty ratio of moment t2 in the time period before).As a result, the charging circuit 51 of motor vehicle 50 makes charging current increase dI1.Thereby charging circuit 51 utilizes with the current value that the current value of t2 in the time period before equates constantly battery 52 is charged.In this case, the current drain of the electric equipment in the H of resident family declines.Therefore,, even if charging current I2 increases, the current value of trunk electric current I 1 is also lower than first threshold Th1.Therefore, continue motor vehicle 50 to power.
As recognized by above-mentioned explanation, in the electric vehicle power supply system of the present embodiment, when the measured value of trunk electric current I 1 surpasses first threshold Th1, the control cabinet 3 that is defined as control device sends power supply restricting signal to vehicle with power supply unit 4.Vehicle reduces the power supply to motor vehicle 50 with power supply unit 4 based on this power supply restricting signal.Therefore,, with respect to the charging to motor vehicle, preferentially use the electric equipment in the H of resident family.In other words, the electric equipment such as electric cooking equipment etc. is Interim use in life.Therefore the impact, such as the electric equipment of electric cooking equipment etc., life being produced is remarkable.As a comparison, to the charging of the battery of motor vehicle, continue to such an extent that the time is longer.Therefore, on electric vehicle power supply to stop impact that the charging of this motor vehicle is produced very little temporarily.Therefore,, when trunk electric current I 1 surpasses first threshold Th1, the electric power of motor vehicle 50 is supplied with and declined.Thereby, preferential electric equipment power supply in the H of resident family.As a result, the peak value of trunk electric current can be suppressed, the convenience of life can be kept thus.In addition, even if suppress the peak value of trunk electric current I 1, motor vehicle is widely used in whole region, also can makes the peak value of the current drain in whole region decline.Therefore, this structure makes stably to supply with electric power.
In the present embodiment, when trunk electric current I 1 surpass first threshold Th1 state continuance during special time period, the electric power of motor vehicle 50 is supplied with and is declined.Yet, also can in trunk electric current I 1, surpass the moment of first threshold Th1, reduce immediately the charging current I2 that is supplied to motor vehicle 50.
the 4th embodiment
With reference to figure 6A ~ 6D, the fourth embodiment of the present invention is described.The assembly of the present embodiment is identical with the assembly of the first embodiment.Therefore, omitted explanation and the illustration for these assemblies.
In the 3rd embodiment, when trunk electric current I 1 surpass first threshold Th1 state continuance during special time period Δ T1, power supply unit 4 power supplies of restriction to motor vehicle 50 for vehicle.As a comparison, in the present embodiment, when trunk electric current I 1 surpass Second Threshold Th2 state continuance during predetermined amount of time Δ T3, power supply unit 4 power supplies of restriction to motor vehicle 50 for vehicle.Second Threshold Th2 is set to lower than first threshold Th1.Scheduled time Δ T3 is set to be longer than special time period Δ T1.
The operation of the present embodiment is described with reference to figure 6A ~ 6D.Fig. 6 A illustrates the measured value of the trunk electric current I 1 that current measuring unit 2 measures.Fig. 6 B illustrates the output signal of exporting from control cabinet 3.Fig. 6 C illustrates the duty ratio of " exporting the charging control signal SA of motor vehicle 50 from vehicle with power supply unit 4 to ".Fig. 6 D illustrates charging current I2.
Within the time period of t0 ~ moment in moment t1, vehicle is supplied with electric power with power supply unit 4 to motor vehicle 50, thus the battery of motor vehicle 50 is charged.In addition, within the time period of t0 ~ t1, in the H of resident family, also make electrical installation.Current measuring unit 2 is for providing the measured value of trunk electric current I 1.Control cabinet 3 is for comparing this measured value and first threshold Th1 and Second Threshold Th2 respectively.When trunk electric current I surpass first threshold Th1 state continuance during predetermined amount of time Δ T1, control cabinet 3 output power supply restricting signal S3.Or, when trunk electric current I 1 surpass Second Threshold Th2 state continuance during predetermined amount of time Δ T3, control cabinet 3 output power supply restricting signal S3 (predetermined amount of time Δ T3 is set to be longer than predetermined amount of time Δ T1).This power supply restricting signal S3 comprises the indication declining for making to be supplied to the charging current I2 of motor vehicle 50.This power supply restricting signal S3 is sent to power supply unit 4 for vehicle.Within the time period of t0 ~ moment in moment t1, the summation of " current drain of the electric equipment in the H of resident family " and " charging current I2 " is corresponding to the measured value of trunk electric current I 1.Trunk electric current I 1 is lower than first threshold Th1 and lower than Second Threshold Th2.Therefore, not output " power supply restricting signal " of control cabinet 3.In the present embodiment, first threshold Th1 is set as to scheduled current.In the present embodiment, first threshold Th1 is set to and 110% of the current rating of trunk circuit breaker 11 corresponding current value.That is, first threshold Th1 is set to and 110% of the current rating 50A of trunk circuit breaker 11 corresponding 55A.Second Threshold Th2 is set to the value equating with the current rating (50A) of trunk circuit breaker 11.
At moment t1, in the H of resident family, bring into use the electric equipment that electric power consumption is large.As a result, the measured value of trunk electric current I 1 surpasses Second Threshold Th2 (50A).Yet the measured value of trunk electric current I 1 is lower than first threshold (55A).When the current value of trunk electric current I 1 higher than Second Threshold Th2 and lower than the state continuance of first threshold Th1 during predetermined amount of time Δ T3, control cabinet 3 is sent to power supply unit 4 for vehicle by power supply restricting signal S3.(for example, predetermined amount of time Δ T3 is set to 5 minutes.Power supply restricting signal S3 comprises the indication for charging current I2 is declined.)
When vehicle with the control unit 44 of power supply unit 4 when moment t2 receives power supply restricting signal S3, control unit 44 generates charging control signal SA (in other words, charging control signal SA is electric current dropping signal).Charging control signal SA comprises for making the indication of current current value decline dI2.First threshold Th1 is set to exceed 5A (first threshold Th1 is set to the 55A higher than the current rating of trunk circuit breaker 11) than the current rating of trunk circuit breaker 11.Second Threshold Th2 is set to the value equating with the current rating (50A) of trunk circuit breaker 11.Therefore, consider the surplus of 2A, the electric current slippage dI2 that charging current I2 surpasses in the situation of Second Threshold Th2 is set to 7A.Until in the constantly time period of t1, in the situation that vehicle has sent the signal that battery is not more than to the charging of 30A for permitting with power supply unit 4,51 pairs of batteries of charging circuit of motor vehicle 50 are not more than the charging of 30A.The current detector 48 of being realized by current transformer is for detection of the electric current of the inner wire 40 of flowing through.Therefore,, based on the detected electric current of current detector 48, vehicle generates charging control signal SA with power supply unit 4.This charging control signal SA comprises that (for example,, if current charging current is 25A, the electric current of the dI2 that declined is 18A for the indication by current current value decline dI2 is adjusted charging current I2; 25A-7A=18A).The signal form of 45 couples of charging control signal SA of signal conversion unit is changed.Subsequently, signal output unit 46 is sent to motor vehicle 50 by charging control signal SA.
The charging circuit 51 of motor vehicle 50 is recently adjusted the current value of charging current according to the duty of the charging control signal SA sending with power supply unit 4 from vehicle.When the duty ratio of charging control signal SA is when moment t2 changes, charging current I2 causes according to the duty ratio after changing the dI2 that declined.As a result, charging current I2 is equal to or less than 18A.In addition, trunk electric current I 1 is equal to or less than 48A.Thereby, trunk electric current I 1 can be adjusted in current rating.
As mentioned above, when having continued 5 minutes higher than Second Threshold Th2 and lower than the electric current of first threshold Th1, control cabinet 3 generates power supply restricting signal S3 (particularly, when comparing with the current rating of trunk circuit breaker 11, the electric current that overcurrent surpasses is in 5A, and while having continued 5 minutes, control cabinet 3 generates power supply restricting signal S3).With power supply unit 4, the power supply restricting signal S3 based on sending from control cabinet 3 makes charging current I2 decline dI2 to vehicle.Therefore, trunk electric current I 1 dI2 that declined, the value of trunk electric current I 1 is equal to or less than 48A thus.In other words, trunk electric current I 1 is adjusted in current rating.As a result, can prevent that trunk circuit breaker 11 is because overcurrent is cut off.In addition, in motor vehicle 50, although charging current declines, but still can continue the battery of motor vehicle 50 to charge, and can not stop this battery to charge.
Subsequently, after moment t3, the state of the charging current I2 that is supplied to motor vehicle 50 after reducing.In this case, when the electric equipment in the H of resident family stops, trunk electric current I 1 is lower than predetermined the 3rd threshold value Th3 (in other words, being defined as restoring current by " lower than the trunk electric current of the 3rd threshold value Th3 ").When trunk electric current I 1 lower than the state continuance of the 3rd threshold value during special time period Δ T4, control cabinet 3 generates power supply restriction cancellation signal S4.This power supply restriction cancellation signal S4 comprises for removing the indication to the power supply restriction of motor vehicle 50.
When vehicle with the control unit 44 of power supply unit 4 when moment t4 receives power supply restriction cancellation signal S4, control unit 44 generates charging control signal SA.This charging control signal SA comprises for making current electric current increase the indication of dI2.The signal form of 45 couples of charging control signal SA of signal conversion unit is changed.Subsequently, signal output unit 46 is sent to motor vehicle 50 by this charging control signal.In the charging circuit 51 of motor vehicle 50, at moment t4, when duty ratio is changed into the duty ratio that the duty ratio in the time period before reducing equates with the duty ratio of charging control signal SA, charging circuit 51 makes charging current I2 increase dI2.Thereby charging circuit 51 utilizes with the current value that the current value of t2 in the time period before equates constantly battery 52 is charged.In this case, even if charging current I2 increases, the current drain of the electric equipment in the H of resident family also declines.Therefore, the current value of trunk electric current I 1 lower than first threshold Th1 and Second Threshold Th2 the two.Thereby, continue motor vehicle 50 to charge.
As being appreciated that by above-mentioned explanation, even if be applied to the trunk electric current I 1 of trunk circuit breaker 11 lower than first threshold Th1, in the situation that continued predetermined amount of time Δ T3 lower than first threshold Th1 and the electric current that is equal to or higher than Second Threshold Th2, still can limit the power supply to motor vehicle 50.Therefore, can reduce the peak value of trunk electric current I 1.
the 5th embodiment
With reference to figure 7, the fifth embodiment of the present invention is described.Except having omitted control cabinet 3, the assembly of the assembly of the present embodiment and the first embodiment is roughly the same.Therefore, utilize identical Reference numeral to represent the assembly identical with the assembly of the first embodiment.According to the above, omit the explanation for the identical assembly of the assembly with the first embodiment.
In the first embodiment, current measuring unit 2 is for measuring trunk electric current I 1, and current measuring unit 2 produces and measures electric current thus.Control cabinet 3 is for comparing the electric current measuring and first threshold Th1, and control cabinet 3 judgement trunk electric current I 1 are higher than first threshold Th1 or lower than first threshold Th1 thus.When the current value of trunk electric current I 1 higher than the state continuance of first threshold Th1 during special time period Δ T, control cabinet 3 is sent to power supply unit 4 for vehicle by power supplying control signal.This power supplying control signal comprises for limiting the indication to the power supply of motor vehicle 50.Thereby vehicle is supplied to the electric current of motor vehicle 50 with power supply unit 4 restrictions.As a comparison, in the present embodiment, vehicle has the function of control cabinet 3 with the control unit 44 of power supply unit 4.
In other words, current measuring unit 2 is measured the current value of trunk electric current I 1, and current measuring unit 2 produces the current value measuring thus.Vehicle successively compares the current value measuring and first threshold Th1 with the control unit 44 of power supply unit 4, and the current value that control unit 44 judgements measure is thus higher than first threshold Th1 or first threshold Th1.When the current value of trunk electric current I 1 higher than the state continuance of first threshold Th1 during special time period Δ T1, control unit 44 generates charging control signal SA.In other words, charging control signal SA is charging stop signal.Charging control signal SA comprises for stopping the indication to battery charging.The signal form of 45 pairs of these signals of signal conversion unit is changed.Then, signal output unit 46 is sent to motor vehicle 50 by this signal from signal output unit 46.In addition, when stopping motor vehicle 50 power supply, vehicle compares the current value measuring and the 3rd threshold value Th3 (this current value measuring is that current measuring unit 2 generates when the magnitude of current is measured) with the control unit 44 of power supply unit 4.Thereby control unit 44 judgement trunk electric current I 1 are higher than the 3rd threshold value Th3 or lower than the 3rd threshold value Th3.When the current value of trunk electric current I 1 lower than the state continuance of the 3rd threshold value Th3 during special time period Δ T2, control unit 44 generates charging control signal SA.This charging control signal SA comprises for restarting the indication to battery charging.The signal form of 45 couples of charging control signal SA of signal conversion unit is changed.Subsequently, signal output unit 46 is sent to motor vehicle 50 by this signal.As being appreciated that by above-mentioned explanation, the present embodiment discloses following content: vehicle comprises the control unit 44 of the function with control cabinet 3 with power supply unit 4.Therefore, without adopting control cabinet 3.As a result, can simplied system structure.
Without explanation, the second embodiment, the 3rd embodiment and the 4th embodiment can adopt vehicle with power supply unit 4, to comprise control unit 44 these structures of the function with control cabinet 3.This structure makes the second embodiment, the 3rd embodiment and the 4th embodiment can omit control cabinet 3 separately.
the 6th embodiment
With reference to figure 8 and Fig. 9 A ~ 9F, the sixth embodiment of the present invention is described.
Except air-conditioning 7a, 7b and these two features of interface unit (IFU) 6a, 6b, the electric vehicle power supply system of the electric vehicle power supply system of the present embodiment and the 3rd embodiment is roughly equal to.Air-conditioning 7a, 7b comprise JEM-A terminal separately.JEM-A terminal meets the standard of JEMA.Interface unit 6a, 6b be separately for the signal sending from control cabinet 3 being converted to the signal corresponding with JEM-A terminal, and this signal is sent to corresponding air-conditioning 7a, 7b.Utilize identical Reference numeral to represent the assembly identical with the assembly of the 3rd embodiment.Therefore, omitted the explanation for the identical assembly of the assembly with the 3rd embodiment.
Electric vehicle power supply system in the 3rd embodiment, when trunk electric current I 1 surpasses predetermined first threshold, limits the power supply to motor vehicle.Yet the electric vehicle power supply system in the present embodiment, when trunk electric current I 1 surpasses threshold value, arranges motor vehicle 50 and air-conditioning 7a, 7b as power supply restriction object.Motor vehicle 50 and air-conditioning 7a, 7b are provided with priority.According to the following relation (motor vehicle 50< air-conditioning 7a< air-conditioning 7b) of determining the priority of motor vehicle 50 and air-conditioning 7a, 7b.By priority, from minimum, to the highest order, stop power supply.That is,, when trunk electric current surpasses first threshold, stop the power supply to the minimum motor vehicle 50 of priority.Then, when trunk electric current I 1 surpasses predetermined threshold, stop the power supply to the higher leveled air-conditioning 7a of priority ratio motor vehicle 50.Subsequently, when trunk electric current I 1 surpasses predetermined threshold, stop the power supply to the higher leveled air-conditioning 7b of priority ratio air-conditioning 7a.
The operation of the present embodiment is described with reference to figure 9A ~ 9F.Fig. 9 A illustrates the measured value of the trunk electric current I 1 that current measuring unit 2 measures.Fig. 9 B illustrates the output signal of exporting from control cabinet 3.Fig. 9 C illustrates and from vehicle, with power supply unit 4, exports the duty ratio of the charging control signal SA of motor vehicle 50 to.Fig. 9 D illustrates charging current I2.Fig. 9 E illustrates the JEMA signal that is applied to air-conditioning 7a.Fig. 9 F illustrates on-state or the off-state of air-conditioning 7a.Dash area A in Fig. 9 A illustrates the charging current I2 being included in trunk electric current I 1.Charging current I2 is supplied to motor vehicle 50.Dash area B illustrates the current drain of air-conditioning 7a.
Within the time period of t0 ~ moment in moment t1, vehicle is supplied with electric power with power supply unit 4 to motor vehicle 50, thus the battery of motor vehicle 50 is charged.In addition, within the time period of t0 ~ t1, in the H of resident family, also make electrical installation.The summation of " current drain of the electric equipment in the H of resident family " and " charging current I2 " is corresponding to the measured value of trunk electric current I 1.Trunk electric current I 1 is lower than first threshold Th1.Therefore, not output " power supply restricting signal " of control cabinet 3.In the present embodiment, first threshold Th1 is set as to 55A.The first threshold Th1 of 55A is corresponding to 110% of the current rating of trunk circuit breaker 11.That is, the current rating of trunk circuit breaker equals 50A.
At moment t1, in the H of resident family, bring into use the electric equipment that electric power consumption is large.As a result, the measured value of trunk electric current I 1 surpasses first threshold Th1 (55A).Control cabinet 3 is for successively comparing the measured value of trunk electric current I 1 and first threshold Th1, and the measured value of control cabinet 3 judgement trunk electric current I 1 is higher than first threshold Th1 or lower than first threshold Th1 thus.At moment t2, " trunk electric current I 1 surpasses the state of first threshold Th1 " continued predetermined amount of time Δ T1.Therefore,, at moment t2, control cabinet 3 is sent to power supply unit 4 for vehicle by " comprising for making to be supplied to the power supply restricting signal S3 of the indication that the charging current I2 of motor vehicle 50 declines ".
When vehicle with the control unit 44 of power supply unit 4 when moment t2 receives power supply restricting signal S3, control unit 44 generates and is used to indicate the charging control signal SA (in other words, be used to indicate make the charging control signal SA of charging current I2 decline dI1 be charging dropping signal SA) that makes charging current I2 decline dI1.First threshold Th1 exceeds 5A than the current rating of trunk circuit breaker 11.According to this, arrange, consider the surplus of 2A, the slippage dI1 of electric current is set to 7A.Until in the constantly time period of t1, in the situation that vehicle has sent for permitting 51 pairs of batteries of charging circuit to be not more than the signal of the charging of 30A with power supply unit, 51 pairs of batteries of charging circuit of motor vehicle 50 are not more than the charging of 30A.Vehicle comprises the current detector 48 of being realized by current transformer with power supply unit.Current detector 48 is for detection of the electric current of the inner wire 40 of flowing through.The testing result producing based on current detector 48, vehicle generates charging control signal SA with power supply unit 4, wherein this charging control signal SA be used to indicate by the current value of charging current I2 be adjusted into compare with current charging current value reduced dI1 current value (for example, when current charging current value is 25A, the current value after adjustment is 18A (25A-7A=18A)).The signal form of 45 couples of charging control signal SA of signal conversion unit is changed, and from signal output unit 46, exports charging control signal SA to motor vehicle 50.
When the charging circuit 51 of motor vehicle 50 receives charging control signal SA from vehicle with power supply unit 4, the charging circuit 51 of motor vehicle 50 is recently controlled the current value of charging current I2 according to the duty of charging control signal SA.When the duty ratio of charging control signal SA is when moment t2 changes, the duty after vehicle changes according to moment t2 with power supply unit 4 recently makes charging current I2 decline dI1.That is, the first threshold Th1 that (equals 55A's) is higher than the current rating of trunk circuit breaker 11.When being applied to the electric current that is equal to or greater than first threshold Th1 of trunk circuit breaker 11 and having continued 1 second, control cabinet 3 generates power supply restricting signal S3.Based on this power supply restricting signal S3, vehicle makes " being supplied to the charging current I2 of motor vehicle 50 " with power supply unit 4, and dI1 has declined.Yet dI1 trunk electric current I 1 still surpasses the situation of current rating (50A) although existence trunk electric current I 1 has declined.In this case, at moment t3, the electric current that surpasses current rating has applied predetermined amount of time Δ T4 continuously.Therefore,, at moment t3, control cabinet 3 is sent to IFU 6a by " comprising for making the signal of the indication that priority stops than the higher leveled air-conditioning 7a of motor vehicle ".In response to this, IFU 6a stops indicating the JEMA signal of S5 to be sent to air-conditioning 7a by comprising.Now, air-conditioning 7a is because the JEMA signal sending from IFU 6a stops.As a result, trunk electric current I 1 is adjusted in current rating.Like this, can prevent from causing this trunk circuit breaker to cut off owing to being applied to the overcurrent of trunk circuit breaker 11.In addition, although the current value of the charging current of motor vehicle 50 declines, can continue battery to charge, and can not stop charging.
Subsequently, after moment t4, the state of the charging current I2 of motor vehicle 50 after reducing, and air-conditioning 7a is still in stopping.In this case, when the electric equipment in the H of resident family stops, trunk electric current I 1 is lower than predetermined the 3rd threshold value Th3 (the trunk electric current I 1 lower than the 3rd threshold value Th3 is defined as restoring current).When trunk electric current I 1 lower than the state continuance of the 3rd threshold value Th3 during special time period Δ T2, control cabinet 3 is sent to IFU 6a by " comprising for making the signal of the indication of air-conditioning 7a work ".In response to this, IFU 6a is sent to air-conditioning 7a by the JEMA signal that comprises work indication S6.As a result, air-conditioning 7a is because the JEMA signal sending from IFU 6a restarts.Thereby trunk electric current I 1 increases because of the current drain of air-conditioning 7a.Yet, if trunk electric current I 1 still lower than the 3rd threshold value Th3, control cabinet 3, having passed through the moment t6 of predetermined amount of time Δ T5, is sent to motor vehicle 50 by power supply restriction cancellation signal S4.Power supply restriction cancellation signal S4 comprises for removing the indication of power supply restriction.
When vehicle with the control unit 44 of power supply unit 4 when moment t6 receives power supply restriction cancellation signal S4, control unit 44 generates charging control signal SA, and wherein this charging control signal SA comprises for making the current current value of charging current I2 increase the indication of dI1.The signal form of 45 couples of charging control signal SA of signal conversion unit is changed.Signal output unit 46 is sent to motor vehicle 50 by charging control signal SA.The charging circuit 51 of motor vehicle 50 is for recently adjusting charging current according to the duty of the charging control signal sending with power supply unit 4 from vehicle.At moment t6, the duty ratio of charging control signal SA is changed into the duty ratio equating with the duty ratio of moment t2 in the time period before.As a result, the charging circuit 51 of motor vehicle 50 makes charging current increase dI1.Thereby charging circuit 51 utilizes with the current value that the current value of t2 in the time period before equates constantly battery 52 is charged.Now, even if charging current I2 increases, the current drain of the electric equipment in the H of resident family also declines.Therefore, trunk electric current I 1 is lower than first threshold Th1.Therefore, continue motor vehicle 50 to power.
In addition, described electric vehicle power supply system is for supplying with electric power to the first electric equipment and the second electric equipment.Described control assembly is defined as the first priority by the priority of described the first electric equipment.Described control assembly is defined as the second priority by the priority of described the second electric equipment.Described control assembly is defined as the 3rd priority by the priority of described motor vehicle.Described the 3rd priority is lower than described the second priority.Described the second priority is lower than described the first priority.In the situation that described control assembly generates described power supply restricting signal, described vehicle limits being supplied to the electric current of the described motor vehicle with described the 3rd priority with power supply unit.In the situation that described vehicle limits being supplied to the electric current of described motor vehicle with power supply unit, described control assembly is confirmed the first restrictive condition.In the situation that described control assembly generates described power supply restricting signal under described the first restrictive condition, described vehicle limits being supplied to the electric power of described second electric equipment with described the second priority with power supply unit.
In addition, described electric vehicle power supply system is for supplying with electric power to a plurality of electric equipments.Described control assembly is determined described a plurality of electric equipment priority separately.Described control assembly is defined as the minimum priority in described motor vehicle and described a plurality of electric equipment by the priority of described motor vehicle.In the situation that described control assembly generates described power supply restricting signal, described vehicle limits being supplied to the electric power of the described motor vehicle with described minimum priority with power supply unit.In the situation that described vehicle limits being supplied to the electric power of the described motor vehicle with described minimum priority with power supply unit, described control assembly is confirmed the first restrictive condition.In the situation that described control assembly generates described power supply restricting signal under described the first restrictive condition, described vehicle with power supply unit according to limiting being supplied to the electric power of electric equipment to thering is the order of the electric equipment of high priority from thering is the electric equipment of described minimum priority in described a plurality of electric equipments.
This structure makes in the situation that making electrical installation, to keep the convenience of life.The peak value that can suppress in addition, current drain.
In addition, in resident family, dispose a plurality of electric equipments.Thereby, can in the situation that making electrical installation, maintain indoor user's life convenience.
In addition, when described control assembly generates described power supply restricting signal under described first condition, described vehicle makes the electric power that is supplied to described the second electric equipment stop or reducing with power supply unit.
In addition, when described control assembly generates described power supply restricting signal under described first condition, described vehicle makes the electric power that is supplied to electric equipment stop or reducing with power supply unit according to the order from the minimum electric equipment of priority to the highest electric equipment of priority in electric equipment.
Without explanation, " for controlling the parts of power supply " can be applied to above-mentioned embodiment except the 3rd embodiment.Thereby, can control being supplied to " such as the electric equipment with JEM-A terminal of air-conditioning etc. " and the electric power of " motor vehicle ".Therefore, can obtain the effect identical with the present embodiment.In addition, use the electric equipment as air-conditioning 7a, 7b with JEM-A terminal that the present embodiment has been described.Yet, disclosed parts in the present embodiment can be applied to have the electric equipment such as floor heating system etc. of JEM-A terminal.
In addition, in above-mentioned each embodiment, distribution panelboard 1 is to motor vehicle 50 supplier's alternating electromotive forces.Yet, the in the situation that of " the applicable direct current power of motor vehicle 50 " and " battery 52 is configured to utilize direct current power to charge ", can adopt the distribution panelboard that distributes direct current power for the electric equipment in resident family, to motor vehicle 50, supply with direct current power thus.
That is the electric power of, supplying with from power supply via circuit breaker components can be direct current power or alternating electromotive force.
In the above-described embodiments, distribution panelboard comprises trunk circuit breaker and branch circuit breaker.Yet branch circuit breaker is not essential for distribution panelboard.That is, distribution panelboard only needs to have circuit breaker.
In addition, branch circuit breaker is configured in trunk circuit breaker and vehicle is used in the circuit between power supply unit.In addition, branch circuit breaker can be configured in the circuit between trunk circuit breaker and electric equipment.
In addition, in the above-described embodiments, first threshold is set to be equal to or higher than 110% of current rating.Yet, and nonessential first threshold is set to be equal to or higher than 110% value of current rating.That is, first threshold is to determine arbitrarily.
In addition, in the above-described embodiments, motor vehicle is connected with electric vehicle power supply system via connector.Yet in the present invention, the connection of setting up via connector is not essential.That is, can be by this system applies in wireless charging system.
description of reference numerals
1 distribution panelboard
2 current measuring units
3 control cabinets (control device)
4 vehicle power supply units
The connector of 5 vehicle side
11 trunk circuit breakers
12 branch circuit breakers
43 leakage indicators
44 control units
45 signal conversion units
46 signal output units
47 power supplys
50 motor vehicles
51 charging circuits
52 batteries
53 bonder terminals

Claims (19)

1. an electric vehicle power supply system, for supplying with electric power to the motor vehicle with battery and charging circuit, utilize thus described charging circuit to charge to described battery, wherein said battery is for generation of the electric power that described motor vehicle can be travelled, described charging circuit is for charging to described battery, and described electric vehicle power supply system comprises:
Circuit breaker components;
Current measuring unit, for measuring the current value of the trunk electric current that is applied to described circuit breaker components;
Control assembly, in the situation that the measurement current value of described trunk electric current surpasses first threshold, generates power supply restricting signal, and wherein, described power supply restricting signal comprises the indication for limiting being supplied to the electric power of described motor vehicle; And
Vehicle power supply unit, for receiving electric power via described circuit breaker components, and is supplied to this electric power the described charging circuit of described motor vehicle,
Wherein, in the situation that described control assembly generates described power supply restricting signal, described vehicle limits being supplied to the electric current of described motor vehicle with power supply unit,
In the situation that the measurement current value of described trunk electric current surpass described first threshold state continuance very first time section, described control assembly limits being supplied to the electric power of described motor vehicle,
In the situation that the measurement current value that described current measuring unit measures surpass Second Threshold state continuance predetermined amount of time, described control assembly is sent to described vehicle power supply unit by described power supply restricting signal, and
Described Second Threshold is set to lower than described first threshold,
Described predetermined amount of time is set to be longer than described very first time section,
Described Second Threshold is set to be equal to or greater than current rating,
In the situation that described vehicle with power supply unit make to be supplied under the state that the electric current of described motor vehicle declines, described measurement current value lower than the state continuance of the 3rd threshold value special time period, described control assembly generates power supply restriction cancellation signal, wherein, described the 3rd threshold value is lower than described Second Threshold, described power supply restriction cancellation signal comprises the indication power supply of described motor vehicle being limited for removing, and
Described vehicle is removed the power supply restriction to described motor vehicle with power supply unit based on described power supply restriction cancellation signal.
2. electric vehicle power supply system according to claim 1, is characterized in that,
Described circuit breaker components comprises distribution panelboard, and wherein, described distribution panelboard comprises trunk circuit breaker and branch circuit breaker,
Described current measuring unit measurement is applied to the current value of the described trunk electric current of described trunk circuit breaker,
Described vehicle receives electric power with power supply unit via described branch circuit breaker, and this electric power is supplied to the described charging circuit of described motor vehicle, and
In the situation that described control assembly generates described power supply restricting signal, described vehicle limits being supplied to the electric power of described motor vehicle with power supply unit.
3. electric vehicle power supply system according to claim 1, is characterized in that,
Described vehicle comprises that with power supply unit the mode dismantling is mounted to the bonder terminal of the connector of described motor vehicle, and
Described vehicle receives electric power with power supply unit via described circuit breaker components, and via described bonder terminal, this electric power is supplied to the described charging circuit of described motor vehicle.
4. electric vehicle power supply system according to claim 1, is characterized in that,
Described current rating is the current rating of described circuit breaker components.
5. electric vehicle power supply system according to claim 2, is characterized in that,
Described current rating is the current rating of described trunk circuit breaker.
6. electric vehicle power supply system according to claim 1, is characterized in that,
Described vehicle comprises disconnection member with power supply unit, and described disconnection member is used for cutting off in order to supply with the supply path of electric power to described motor vehicle, and
In the situation that described control assembly generates described power supply restricting signal, described vehicle cuts off described supply path with power supply unit, and described vehicle limits being supplied to the electric power of described motor vehicle with power supply unit thus.
7. electric vehicle power supply system according to claim 6, is characterized in that,
Described vehicle also comprises leakage indicator with power supply unit,
Described leakage indicator detects whether there is electric leakage for the electric current based on the described supply path of flowing through, and
In the situation that described leakage indicator detects electric leakage, described leakage indicator makes supply path described in described disconnection cutting of members.
8. electric vehicle power supply system according to claim 1, is characterized in that,
Described vehicle comprises signal transmitting unit with power supply unit, and described signal transmitting unit is used for the described charging circuit transmitted signal to described motor vehicle, and
In the situation that described control assembly generates described power supply restricting signal, described vehicle makes described signal transmitting unit send charging stop signal to described charging circuit with power supply unit, described vehicle limits being supplied to the electric power of described motor vehicle with power supply unit thus, wherein, described charging stop signal comprises for stopping the indication to described electric vehicle power supply.
9. electric vehicle power supply system according to claim 3, is characterized in that,
Described vehicle also comprises signal transmitting unit with power supply unit, and described signal transmitting unit is used for via described bonder terminal the described charging circuit transmitted signal to described motor vehicle, and
In the situation that described control assembly generates described power supply restricting signal, described vehicle makes described signal transmitting unit send charging stop signal to described charging circuit with power supply unit, to being supplied to the electric current of described motor vehicle, limit thus, wherein, described charging stop signal comprises the indication for stopping charging.
10. electric vehicle power supply system according to claim 1, is characterized in that,
Described vehicle also comprises signal transmitting unit with power supply unit, and described signal transmitting unit is used for the described charging circuit transmitted signal to described motor vehicle, and
In the situation that described control assembly generates described power supply restricting signal, described vehicle makes described signal transmitting unit send electric current dropping signal to described charging circuit with power supply unit, to being supplied to the electric current of described motor vehicle, limit thus, wherein, described electric current dropping signal comprises the indication declining for making to be supplied to the electric current of described motor vehicle.
11. electric vehicle power supply systems according to claim 3, is characterized in that,
Described vehicle also comprises signal transmitting unit with power supply unit, and described signal transmitting unit is used for via described bonder terminal the described charging circuit transmitted signal to described motor vehicle, and
In the situation that described control assembly generates described power supply restricting signal, described vehicle makes described signal transmitting unit send electric current dropping signal to described charging circuit with power supply unit, to being supplied to the electric current of described motor vehicle, limit thus, wherein, described electric current dropping signal comprises the indication declining for making to be supplied to the electric current of described motor vehicle.
12. electric vehicle power supply systems according to claim 1, is characterized in that,
Described the 3rd threshold value is set to lower than current rating.
13. electric vehicle power supply systems according to claim 1, is characterized in that,
In the situation that described vehicle with power supply unit stop under the state of described electric vehicle power supply, described measurement current value lower than the state continuance of the 3rd threshold value special time period, described control assembly generates power supply restriction cancellation signal.
14. electric vehicle power supply systems according to claim 13, is characterized in that,
Described the 3rd threshold value is set to lower than current rating.
15. electric vehicle power supply systems according to claim 1, is characterized in that,
In the situation that described control assembly generates described power supply restricting signal, described vehicle limits being supplied to the electric current of described motor vehicle with power supply unit, so that described trunk electric current is lower than current rating.
16. electric vehicle power supply systems according to claim 1, is characterized in that,
Described control assembly is to be configured in the control unit in power supply unit for described vehicle.
17. electric vehicle power supply systems according to claim 1, is characterized in that,
Described control assembly is control device.
18. electric vehicle power supply systems according to claim 1, is characterized in that,
Described electric vehicle power supply system is also supplied with electric power to the first electric equipment and the second electric equipment,
Described control assembly is defined as the first priority by the priority of described the first electric equipment,
Described control assembly is defined as the second priority by the priority of described the second electric equipment,
Described control assembly is defined as the 3rd priority by the priority of described motor vehicle,
Described the 3rd priority is lower than described the second priority,
Described the second priority is lower than described the first priority,
In the situation that described control assembly generates described power supply restricting signal, described vehicle limits being supplied to the electric current of the described motor vehicle with described the 3rd priority with power supply unit,
In the situation that described vehicle limits being supplied to the electric current of described motor vehicle with power supply unit, described control assembly is confirmed the first restrictive condition, and
In the situation that described control assembly generates described power supply restricting signal under described the first restrictive condition, described vehicle limits being supplied to the electric power of described second electric equipment with described the second priority with power supply unit.
19. electric vehicle power supply systems according to claim 1, is characterized in that,
Described electric vehicle power supply system is also for supplying with electric power to a plurality of electric equipments,
Described control assembly is determined described a plurality of electric equipment priority separately,
Described control assembly is defined as the minimum priority in described motor vehicle and described a plurality of electric equipment by the priority of described motor vehicle,
In the situation that described control assembly generates described power supply restricting signal, described vehicle limits being supplied to the electric power of the described motor vehicle with minimum priority with power supply unit,
In the situation that described vehicle limits being supplied to the electric power of the described motor vehicle with minimum priority with power supply unit, described control assembly is confirmed the first restrictive condition, and
In the situation that described control assembly generates described power supply restricting signal under described the first restrictive condition, described vehicle with power supply unit according to limiting being supplied to the electric power of electric equipment to thering is the order of the electric equipment of high priority from thering is the electric equipment of minimum priority in described a plurality of electric equipments.
CN201080062954.5A 2009-12-21 2010-12-20 Electrical power feeding system for electrical vehicle Expired - Fee Related CN102742114B (en)

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