CN102449875A - 电动车辆 - Google Patents

电动车辆 Download PDF

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CN102449875A
CN102449875A CN2010800241811A CN201080024181A CN102449875A CN 102449875 A CN102449875 A CN 102449875A CN 2010800241811 A CN2010800241811 A CN 2010800241811A CN 201080024181 A CN201080024181 A CN 201080024181A CN 102449875 A CN102449875 A CN 102449875A
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circuit
charging
electric power
motor vehicle
power supply
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中岛丰
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Toyota Industries Corp
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Toyoda Automatic Loom Works Ltd
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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
    • G07F15/003—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for electricity
    • G07F15/005—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for electricity dispensed for the electrical charging of vehicles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04—Regulation of charging current or voltage
    • 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
    • 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
    • B60L53/11—DC charging controlled by the charging station, e.g. mode 4
    • 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
    • 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
    • B60L53/65—Monitoring or controlling charging stations involving identification of vehicles or their battery types
    • 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
    • B60L53/66—Data transfer between charging stations and vehicles
    • B60L53/665—Methods related to measuring, billing or payment
    • 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
    • B60L53/68—Off-site monitoring or control, e.g. remote control
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
    • G07F17/0014—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for vending, access and use of specific services not covered anywhere else in G07F17/00
    • G07F17/0021—Access to services on a time-basis
    • 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
    • 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
    • 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
    • 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
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • 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
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
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    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

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  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

本发明的目的在于提供一种在进行定时充电时，能够抑制向控制充电处理的控制电路供给电力的辅助电池的放电的电动车辆。在由用户设定的充电开始时刻为规定时间经过后的情况下，直到从充电站(12)向电动车辆(13)的电力供给开始为止，使从内部电源电路(35)向CPU(36)等的电力供给停止，当电力供给开始时，再次开始从内部电源电路(35)向CPU(36)等的电力供给。

Description

电动车辆
技术领域
本发明涉及利用从充电站供给的电力对用于驱动车辆驱动用电动机的电池进行充电的电动车辆。
背景技术
考虑到环境问题，电动汽车、插电式混合动力汽车等安装有车辆驱动用电动机的电动车辆已经被关注。(例如，参照专利文献1或者专利文献2)。
在这样的电动车辆中，作为用于驱动电动机的电池的充电开始顺序例如，如下述那样。
1)用户将设置在从充电站延伸出的AC电缆端部的充电插头插入与电动车辆的充电器连接的插口(Inlet)。
2)经由付随AC电缆的通信线，从充电站向控制电动车辆的充电处理的ECU(以下称为控制电路)发送启动信号。
3)通过启动信号，电动车辆的控制电路被启动。
4)从充电站向电动车辆的充电器供给电力。
5)通过充电器开始电池的充电。
另外，在利用自家住宅等个人所有的充电站的情况下，将充电插头插入插口后只是接通充电开始开关来开始充电即可。但是，在利用设置于公共施设等的充电站的情况下，有时会对不确定的电动车辆进行充电，因此需要在充电开始前，在充电站与电动车辆的控制电路之间进行通信，来进行用于判断是否是被允许充电的电动车辆的认证处理。仅在被判断为是被允许充电的电动车辆的情况下，从充电站向电动车辆的充电器供给电力。
虽然，将充电插头插入插口后立即使充电开始的情况是不存在问题的，但在深夜等电价低的时间段使充电开始的情况是从将充电插头插入插口开始经过规定时间后开始充电的，所谓的进行定时充电。此时，电动车辆的控制电路为了等待充电开始而必须持续动作，这期间由于从辅助电池向控制电路持续供给电力，所以导致辅助电池不必要地放电。
专利文献1：日本特开平7-298502号公报
专利文献2：日本特开平10-80071号公报
发明内容
本发明的目的在于，提供一种能够在进行定时充电时抑制向控制充电处理的控制电路供给电力的辅助电池的放电的电动车辆。
本发明的电动车辆为基于由用户设定的充电开始时刻，利用从充电站供给的电力对用于驱动车辆驱动用电动机的电池进行充电的电动车辆，该电动车辆具有：控制电路，其控制对上述电池进行充电时的充电处理；内部电源电路，其将从辅助电池获得的电力供给给上述控制电路；以及检测电路，其对从上述充电站供给的电力进行检测，其中，在上述充电开始时刻为规定时间经过后的情况下，上述控制电路使从上述内部电源电路向上述控制电路的电力供给停止，当由上述检测电路检测出电力时，上述内部电源电路再次开始向上述控制电路的电力供给。
由此，能够抑制在规定时间经过后从充电站供给电力时，辅助电池的放电。
另外，上述电动车辆具有将从上述充电站供给的电力转换为直流的转换电路，当从上述充电站供给电力时，上述内部电源电路可以被构成为，将由上述转换电路转换成直流的电力供给给上述控制电路。
由此，能够进一步抑制辅助电池的放电。
根据本发明，能够在利用定时充电对用于驱动车辆驱动用电动机的电池进行充电时，抑制向控制该充电处理的控制电路供给电力的辅助电池的放电。
附图说明
图1是表示车辆充电系统的图。
图2是表示充电站的构成的图。
图3是表示本发明的实施方式的电动车辆中的ECU的构成的图。
图4是表示电压检测电路以及启动信号发生电路的一个例子的图。
图5是用于说明ECU内的各电路的动作的流程图。
图6是表示本发明的其他实施方式的电动车辆中的ECU的构成的图。
具体实施方式
图1是表示车辆充电系统的图。
图1所示的车辆充电系统11从充电站12向混合动力汽车、电动汽车等电动车辆13供给电力。
本实施方式的电动车辆13具有：ECU14，其控制利用从充电站12供给的电力对用于驱动车辆驱动用电动机的电池进行充电时的充电处理；充电器15，其利用从充电站12供给的电力对电池进行充电。
设定在从充电站12延伸出的AC电缆16的端部的充电插头17被用户插入与充电器15电连接的插口18，并且，当在充电站12中设定有充电开始时刻时，在该充电开始时刻从充电站12向电动车辆13供给电力。
图2是表示充电站12的构成的图。其中，对与图1所示的构成相同的构成赋予相同的符号。
图2所示的充电站12被构成为具有：AC电缆16；充电插头17；显示装置21；网络电路22；存储器23；内部电源电路24；商用电源25；PLC通信电路26；CPU27；以及开关28。
显示装置21显示充电站12的状态(停止中或者充电中等)、充电经过时间等。
网络电路22与用于对充电站12、其他的充电站进行管理的集中管理部进行通信。
存储器23存储认证完成的电动车辆的ID编号(电动车辆的识别信息)等。其中，ID编号可以从网络电路22被发送到集中管理部，在集中管理部中被管理。
内部电源电路24将从商用电源25获得的电力(AC100/200V)供给给显示装置21、网络电路22、PLC通信电路26以及CPU27等。
PLC通信电路26使信号重叠于AC电缆16中而与电动车辆13侧进行通信。即，在充电站12与电动车辆13的ECU14之间进行电力线通信。例如，PLC通信电路26接收从电动车辆13发送来的ID编号。CPU27基于PLC通信电路26中接收到的ID编号、和预先存储在存储器23中的ID编号，来进行是否是被允许充电的电动车辆13的认证处理，若认证成功，则使表示“认证成功”的认证结果通过PLC通信电路26发送给电动车辆13。另外，PLC通信电路26将表示由用户设定的充电开始时刻的充电开始时刻信号向已认证成功的电动车辆13发送。其中，充电开始时刻信号表示“定时充电”或者“即时充电”。若由用户以在夜间等商用电源25的电价低的时间段开始充电的方式设定充电开始时刻，则表示“定时充电”的充电开始时刻信号被向电动车辆13发送。另一方面，若由用户以立即开始充电的方式设定充电开始时刻，则表示“即时充电”的充电开始时刻信号被向电动车辆13发送。
CPU27通过进行充电站12内的各电路的动作控制，来进行充电处理的控制。例如，CPU27基于充电开始时刻信号、认证结果进行开关28的接通(on)及断开(off)的控制。在充电开始时刻信号表示“定时充电”，并且，认证结果表示“认证成功”的情况下，若CPU27利用计时器等判断为经过了规定时间，则接通开关28来将商用电源25与AC电缆16电连接，将从商用电源25获得的电力向电动车辆13供给。另一方面，充电开始时刻信号表示“即时充电”，并且，认证结果表示“认证成功”的情况下，CPU27立即接通开关28来将商用电源25与AC电缆16电连接，将从商用电源25获得的电力向电动车辆13供给。
图3是表示电动车辆13中的ECU14的构成的图。其中，对与图1所示的构成相同的构成赋予相同的符号。
图3所示的ECU14被构成为具有：插口检测电路31(控制电路)；PLC通信电路32(控制电路)；电压检测电路33；启动信号发生电路34；内部电源电路35；以及CPU36(控制电路)。其中，电压检测电路33、启动信号发生电路34、或者内部电源电路35还可以设置在ECU14的外部。另外，在权利要求书中的检测电路由电压检测电路33以及启动信号发生电路34构成。
插口检测电路31检测充电插头17对插口18的插入。
PLC通信电路32使信号在AC电缆16中重叠而与充电站12的PLC通信电路26进行通信。例如，PLC通信电路32将ID编号、充电开始时刻请求信号发送到充电站12，或接收从充电站12发送来的认证结果、充电开始时刻信号。
电压检测电路33对施加在充电器15(或者插口18)的交流电压进行检测。
启动信号发生电路34在通过电压检测电路33检测出交流电压时，将启动信号输出到内部电源电路35。
内部电源电路35将从辅助电池37(+12V)获得的电力向插口检测电路31、PLC通信电路32、启动信号发生电路34以及CPU36等供给。
CPU36通过进行ECU14内的各电路的动作控制，来进行充电处理的控制。
图4是表示电压检测电路33以及启动信号发生电路34的一个例子的图。其中，对与图1所示的构成相同的构成赋予相同的符号。
图4所示的电压检测电路33被构成为具有：由4个二极管41～44构成的、对施加在充电器15(或者插口18)的交流电压进行整流的整流电路；和由电阻45以及电容器46构成的，平滑上述整流电路的输出的平滑电路。
图4所示的启动信号发生电路34被构成为具有二极管47、48、光耦合器49、以及电阻50。
当从充电站12向电动车辆13供给电力时，施加在电容器46的电压上升，从而电流流过二极管47，光耦合器49导通。于是，电流经由电阻50和二极管48流向内部电源电路35。即，当从充电站12向电动车辆13供给电力时，作为启动信号的电流从启动信号发生电路34流向内部电源电路35。
图5是表示用于对ECU14内的各电路的动作进行说明的流程图的图。
首先，若插口检测电路31检测出充电插头17插入插口18(S1为是)，则将表示该意思的信号向CPU36输出而通过CPU36使ECU14启动(S2)。例如，若表示充电插头17插入插口18的信号从插口检测电路31输入到CPU36，则CPU36的休眠状态被解除，并由CPU36对PLC通信电路32进行动作控制。
接下来，PLC通信电路32将ID编号向充电站12发送(S3)。
接下来，若CPU36判断为在PLC通信电路32中接收到表示“认证成功”的认证结果(S4为是)，则判断在PLC通信电路32中接收到的充电开始时刻信号是否是“定时充电”(S5)。例如，在认证结果为“认证成功”的情况下，CPU36使PLC通信电路32发送充电开始时刻请求信号。若充电站12的CPU27在PLC通信电路26中接收到充电开始时刻请求信号，则使充电开始时刻信号向电动车辆13发送。
若判断为充电开始时刻信号不表示“定时充电”，即，判断为充电开始时刻信号表示“即时充电”(S5为否)，CPU36则开始充电处理的控制(例如，监视充电器15的充电状态等)(S11)。
另一方面，若判断为充电开始时刻信号表示“定时充电”(S5为是)，CPU36则使从内部电源电路35向ECU14内的各电路(主要是耗电大的CPU36)的电力供给停止(shutdown)(S6)。其中，启动信号发生电路34被供给电力并继续动作。
接下来，若内部电源电路35被输入启动信号(S7为是)，则再次开始向ECU14内的各电路的电力供给(再启动)(S8)。即，若在规定时间经过后，从充电站12向电动车辆12开始电力供给，则电压检测电路33对交流电压进行检测，并从启动信号发生电路34向内部电源电路35输出启动信号。于是，内部电源电路35再次开始向ECU14内的各电路的电力供给。
接下来，PLC通信电路32将ID编号向充电站12发送(S9)。
然后，若CPU36判断为在PLC通信电路32中接收到表示“认证成功”的认证结果(S10为是)，则开始充电处理的控制(S11)。
这样，在本实施方式的电动车辆13中，当充电开始时刻被用户设定在规定时间经过后时，直到来自充电站12的电力供给开始为止，使向ECU14内的各电路的电力供给停止，因此能够抑制辅助电池37的放电。
图6是表示本发明的其他实施方式的电动车辆13中的ECU的构成的图。其中，对与图3所示的构成相同的构成赋予相同的符号。
图6所示的ECU61被构成为具有：插口检测电路31；PLC通信电路32；电压检测电路33；启动信号发生电路34；内部电源电路35；CPU36；交流/直流转换电路62(转换电路)；设置在辅助电池37与内部电源电路35之间的逆电流防止用的二极管63；以及设置在交流/直流转换电路62与内部电源电路35之间的逆电流防止用的二极管64。其中，交流/直流转换电路62还可以设置在ECU61的外部。
交流/直流转换电路62将从充电站12向电动车辆13供给的电力转换为直流后向内部电源电路35供给。
内部电源电路35在被输入启动信号时，将由交流/直流转换电路62转换为直流的电力向ECU61内的各电路供给。即，当从充电站12向电动车辆13供给电力时，对ECU61内的各电路不供给从辅助电池37获得的电力，而供给由交流/直流转换电路62转换成直流的电力。
由此，当从充电站12向电动车辆13供给电力时，辅助电池37的电力不被消耗，因此能够进一步抑制辅助电池37的放电。
其中，图6所示的ECU61中的CPU36的动作与图5所示的流程图相同。
另外，在上述实施方式中，虽然为信号通过电力线通信在充电站12与电动车辆13的ECU14之间进行交互的构成，但充电站12与电动车辆13的ECU14之间的通信方式不被特别限定，可以是无线通信等。
另外，在上述实施方式中，虽然为在电力供给前，进行判断是否是被允许充电的电动车辆13的认证处理的构成，但在充电站12为个人所有的充电站的情况下等，也可不进行认证处理。该情况下，省略图5的S3、S4、S9以及S10。
附图标记说明：
11...车辆充电系统，12...充电站，13...电动车辆，14...ECU，15...充电器，16...AC电缆，17...充电插头，18...插口，21...显示装置，22...网络电路，23...存储器，24...内部电源电路，25...商用电源，26...PLC通信电路，27...CPU，28...开关，31...插口检测电路，32...PLC通信电路，33...电压检测电路，34...启动信号发生电路，35...内部电源电路，36...CPU，37...辅助电池，61...ECU，62...交流/直流转换电路，63、64...二极管。

Claims (2)

1.一种电动车辆，其基于由用户设定的充电开始时刻，利用从充电站供给的电力对用于驱动车辆驱动用电动机的电池进行充电，所述电动车辆的特征在于，具有：
控制电路，其控制对所述电池进行充电时的充电处理；
内部电源电路，其将从辅助电池获得的电力供给给所述控制电路；以及
检测电路，其对从所述充电站供给的电力进行检测，
在所述充电开始时刻为规定时间经过后的时刻的情况下，所述控制电路使从所述内部电源电路向所述控制电路的电力供给停止，
在由所述检测电路检测出电力时，所述内部电源电路再次开始向所述控制电路的电力供给。
2.根据权利要求1所述的电动车辆，其特征在于，
具有转换电路，其将从所述充电站供给的电力转换成直流，
在从所述充电站供给电力时，所述内部电源电路将由所述转换电路转换成直流的电力供给给所述控制电路。
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