WO2012090261A1 - Recharging system, vehicle, and recharging method - Google Patents

Recharging system, vehicle, and recharging method Download PDF

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Publication number
WO2012090261A1
WO2012090261A1 PCT/JP2010/073522 JP2010073522W WO2012090261A1 WO 2012090261 A1 WO2012090261 A1 WO 2012090261A1 JP 2010073522 W JP2010073522 W JP 2010073522W WO 2012090261 A1 WO2012090261 A1 WO 2012090261A1
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WO
WIPO (PCT)
Prior art keywords
charging
storage device
cord
power
vehicle
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PCT/JP2010/073522
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French (fr)
Japanese (ja)
Inventor
真士 市川
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トヨタ自動車株式会社
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Priority to PCT/JP2010/073522 priority Critical patent/WO2012090261A1/en
Publication of WO2012090261A1 publication Critical patent/WO2012090261A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
    • H02G11/02—Arrangements of electric cables or lines between relatively-movable parts using take-up reel or drum
    • 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
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging 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
    • 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
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the present invention relates to a charging system, a vehicle, and a charging method, and more particularly to a technique for limiting charging according to the tension of a cord that supplies power to a power storage device.
  • a vehicle that is mounted with a power storage device for example, a secondary battery or a capacitor
  • a power storage device for example, a secondary battery or a capacitor
  • Such vehicles include, for example, electric vehicles, hybrid vehicles, fuel cell vehicles, and the like.
  • the technique which charges the electrical storage apparatus mounted in these vehicles with a commercial power source with high electric power generation efficiency is proposed.
  • a vehicle capable of charging an in-vehicle power storage device (hereinafter also referred to as “external charging”) from a power source outside the vehicle (hereinafter also simply referred to as “external power source”) as in the case of an electric vehicle.
  • external charging an in-vehicle power storage device
  • external power source a power source outside the vehicle
  • plug-in hybrid vehicle can charge a power storage device from a general household power source by connecting a power outlet provided in a house to a charging port provided in a vehicle with a power receiving cord. It has been. This can be expected to increase the fuel consumption efficiency of the hybrid vehicle.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2003-219511
  • the cord tension can increase.
  • the tension of the cord increases, the cord can be damaged.
  • the power storage device may not be charged properly. Therefore, it is not preferable to charge the power storage device.
  • An object of the present invention is to avoid charging the power storage device under an unfavorable situation.
  • the charging system includes a cord that supplies power to the power storage device and a charging device that limits charging of the power storage device when the tension of the cord exceeds a predetermined threshold.
  • the vehicle includes a storage device that stores a cord that supplies power to the power storage device, and a charging device that limits charging of the power storage device when the tension of the cord exceeds a predetermined threshold.
  • the charging method includes a step of estimating the tension of a cord that supplies power to the power storage device, and a step of restricting charging of the power storage device when the tension of the cord exceeds a predetermined threshold value.
  • FIG. 1 is an overall block diagram of a vehicle. It is the schematic of a cord storage apparatus. It is a figure which shows the presumed tension
  • FIG. 1 is an overall block diagram of a vehicle 100 on which a cord storage device 600 is mounted.
  • vehicle 100 includes a power storage device 110, a system main relay (SMR), a PCU (Power Control Unit) 120, a motor generator 130, a power transmission gear 140, and driving wheels. 150 and a vehicle ECU (Electronic Control Unit) 300.
  • SMR system main relay
  • PCU Power Control Unit
  • the power storage device 110 is a power storage element configured to be chargeable / dischargeable.
  • the power storage device 110 includes, for example, a secondary battery such as a lithium ion battery, a nickel hydride battery, or a lead storage battery, or a power storage element such as an electric double layer capacitor.
  • the power storage device 110 is connected to the PCU 120 via the power line PL1 and the ground line NL1. Then, power storage device 110 supplies power for generating driving force of vehicle 100 to PCU 120.
  • the power storage device 110 stores the electric power generated by the motor generator 130.
  • the output of power storage device 110 is, for example, about 200V.
  • the relays included in the SMR are respectively inserted in the power line PL1 and the ground line NL1 that connect the power storage device 110 and the PCU 120. Then, SMR switches between power supply and cutoff between power storage device 110 and PCU 120 based on control signal SE ⁇ b> 1 from vehicle ECU 300.
  • PCU 120 is not shown, but includes a converter for boosting the power supply voltage from power storage device 110, an inverter for converting DC power boosted by the converter into AC power for driving motor generator 130, and the like. It is comprised including.
  • the motor generator 130 is an AC rotating electric machine, for example, a permanent magnet type synchronous motor including a rotor in which a permanent magnet is embedded.
  • the output torque of the motor generator 130 is transmitted to the drive wheels 150 via the power transmission gear 140 configured to include a speed reducer and a power split mechanism, thereby causing the vehicle 100 to travel.
  • the motor generator 130 can generate electric power by the rotational force of the drive wheels 150 during the regenerative braking operation of the vehicle 100. Then, the generated power is converted into charging power for power storage device 110 by PCU 120.
  • FIG. 1 shows a configuration in which one motor generator is provided, the number of motor generators is not limited to this, and a configuration in which a plurality of motor generators are provided may be employed.
  • a necessary vehicle driving force is generated by operating the engine and the motor generator 130 in a coordinated manner.
  • vehicle 100 in the present embodiment indicates a vehicle equipped with an electric motor for generating vehicle driving force, and is a hybrid vehicle that generates vehicle driving force by an engine and an electric motor, or an electric vehicle and fuel not equipped with an engine. Includes battery cars.
  • the vehicle ECU 300 includes a CPU (Central Processing Unit), a storage device, and an input / output buffer (not shown in FIG. 1), and inputs signals from each sensor and outputs control signals to each device.
  • the vehicle 100 and each device are controlled. Note that these controls are not limited to processing by software, and can be processed by dedicated hardware (electronic circuit).
  • Vehicle ECU 300 generates and outputs a control signal for controlling PCU 120, SMR, and the like.
  • the vehicle ECU 300 is configured to have one control device.
  • the control unit for the PCU 120 or the control device for the power storage device 110 is individually provided for each function or for each control target device. It is good also as a structure which provides this control apparatus.
  • Vehicle 100 includes an inlet 270, a charging device 200, and a relay RY2 as a configuration for charging power storage device 110 with electric power from external power supply 500A.
  • the inlet 270 is provided in a power receiving port 280 provided on the outer surface of the vehicle 100.
  • the power receiving port 280 is coupled with an openable / closable lid 285 for covering the inlet 270 when external charging is not performed.
  • the charging connector 410 of the charging cable 400 is connected to the inlet 270. Then, electric power from external power source 500 ⁇ / b> A is transmitted to vehicle 100 through charging cable 400.
  • Charging cable 400 includes, in addition to charging connector 410, plug 420 for connecting to outlet 510 ⁇ / b> A of external power supply 500 ⁇ / b> A, and electric wire portion 430 for connecting charging connector 410 and plug 420.
  • the electric wire portion 430 may include a charging circuit interrupting device (not shown) for switching between supply and interruption of power from the external power source 500A.
  • the inlet 270 is connected to the charging device 200 via the power lines ACL1 and ACL2.
  • Vehicle 100 further includes a power receiving cord 250 and a cord storage device 600 as another path for charging power storage device 110 with electric power from external power supply 500B.
  • a plug 260 for connecting to the outlet 510B of the external power source 500B is connected to one end of the power receiving cord 250.
  • the other end of power reception cord 250 is connected to power lines ACL 3 and ACL 4 connected to charging device 200.
  • the power lines ACL3 and ACL4 are connected to the power lines ACL1 and ACL2 via the relay RY3.
  • Relay RY3 is controlled by a control signal SE3 from vehicle ECU 300. Relay RY3 is electrically connected when external charging using power receiving cord 250 is performed, and is not connected when external charging using power receiving cord 250 is not performed.
  • the power receiving cord 250 is wound and stored in the cord storage device 600 when external charging is not performed. Then, when external charging is performed using power receiving cord 250, the power is extracted from an outlet (not shown) of power receiving port 240 provided on the outer surface of vehicle 100. Then, when plug 260 is connected to outlet 510B, the electric power from external power supply 500B is transmitted to vehicle 100.
  • FIG. 1 shows a configuration in which the charging cable 400 and the power receiving cord 250 are used, which are connected to the outlet 510A of the external power supply 500A and the outlet 510B of the external power supply 500B, respectively.
  • the power supply voltage of 500B may be the same voltage or different voltages.
  • the charging cable 400 may be used when the voltage of the external power supply is 200V
  • the power receiving cord 250 may be used when the voltage of the external power supply is 100V.
  • the power receiving port 240 is coupled with an openable / closable lid 245 for covering the outlet when external charging is not performed.
  • the charging device 200 is connected to the inlet 270 via the power lines ACL1 and ACL2. Charging device 200 is connected to power storage device 110 through power line PL2 and ground line NL2 via relay RY2.
  • the charging device 200 converts AC power supplied from the inlet 270 or the power receiving cord 250 into charging power for the power storage device 110.
  • the cord storage device 600 includes a cord reel 610, an electric motor 620, and a control unit 650.
  • the cord reel 610 is provided with a cylindrical trunk portion, and the power receiving cord 250 is wound around the trunk portion.
  • the user pulls the power receiving cord 250, whereby the power receiving cord 250 wound around the cord reel 610 is pulled out.
  • the cord reel 610 winds and stores the power receiving cord 250.
  • a gear 621 is provided on the rotating shaft of the electric motor 620.
  • the gear 621 is disposed so as to be engageable with a gear 611 provided on the side surface of the cord reel 610.
  • the gear 621 is rotated by the electric motor 620 when the power receiving cord 250 is wound around the cord reel 610.
  • the cord reel 610 is rotated by the electric motor 620 in the direction in which the power receiving cord 250 is wound.
  • the power receiving cord 250 is stored in the cord storage device 600.
  • the voltage V of the electric motor 620 is detected by the voltage sensor 630.
  • a signal representing the detection result is input to the control unit 650.
  • the electric motor 620 is driven by electric power supplied from the battery 640. On the other hand, when the power receiving cord 250 is pulled out, the rotating shaft of the electric motor 620 is rotated with the rotation of the cord reel 610.
  • the induced voltage V of the electric motor 620 generated when the power receiving cord 250 is pulled out is expressed by the following formula 1.
  • Equation 1 “R” represents the resistance of the electric motor 620. “I” represents the current of the electric motor 620. “L” represents self-inductance. “ ⁇ ” represents the angular velocity of the rotating shaft of the electric motor 620. “K E ” represents an induced voltage constant.
  • Equation 1 when the output shaft rotational speed of the electric motor 620 is high, the first and second terms on the right side are negligibly small compared to the third term. Therefore, Equation 1 can be approximated as Equation 2 below.
  • Equation 3 “F” represents the force that rotates the rotating shaft of the electric motor 620, in other words, the tension of the power receiving cord 250. “D” represents a coefficient of friction. “J” represents the inertia of the electric motor 620. In Equation 3, the first term on the right side is negligibly small compared to the second term. Therefore, Equation 3 can be approximated as Equation 4 below.
  • the tension F of the power receiving cord 250 is estimated using Equation 5 as a value proportional to the rate of change of the induced voltage V of the electric motor 620.
  • the current i of the electric motor 620 may be used instead of or in addition to the voltage. That is, the tension F may be estimated without ignoring the first term on the right side of Equation 1.
  • the rotational speed ⁇ of the electric motor 620 may be detected, and the tension F may be estimated using Formula 3 or Formula 4 based on the detected rotational speed ⁇ .
  • the computer that estimates the tension F may be the control unit 650 or the vehicle ECU 300.
  • the control unit 650 estimates the tension F
  • a signal representing the estimated tension F is transmitted from the control unit 650 to the vehicle ECU 300.
  • vehicle ECU 300 estimates tension F
  • a signal representing voltage V of electric motor 620 is transmitted from control unit 650 to vehicle ECU 300.
  • Voltage V of electric motor 620 may be directly transmitted from voltage sensor 630 to vehicle ECU 300.
  • charging device 200 is configured by vehicle ECU 300 to limit charging of power storage device 110 when estimated tension F is equal to or greater than a first threshold value. Be controlled. Specifically, charging of power storage device 110 is prohibited, and charging is not started even if other conditions for executing charging are satisfied. Note that the method of limiting charging is not limited to this.
  • the tension F is determined whether the tension F is smaller than the first threshold value using the rate of change dV / dt of the voltage V of the electric motor 620.
  • change rate dV / dt of voltage V of electric motor 620 is smaller than the second threshold value, it is determined that tension F is smaller than the first threshold value.
  • change rate dV / dt of voltage V of electric motor 620 is equal to or greater than the second threshold value, it is determined that tension F is equal to or greater than the first threshold value.
  • the second threshold value is a change rate dV / dt when the tension F matches the first threshold value.
  • the value of the tension F may be calculated using Equation 5 described above, and the calculated tension F and the first threshold value may be directly compared.
  • the rate of change dV / dt of the voltage V of the electric motor 620 is greater than or equal to the second threshold value, that is, when the tension F is greater than or equal to the first threshold value and charging of the power storage device 110 is restricted, for example, as shown in FIG.
  • the lamp 652 is turned on or blinked. This notifies the user that charging of power storage device 110 is restricted. You may make it alert
  • step (hereinafter, step is abbreviated as S) 100 voltage V of electric motor 620 is detected.
  • step S 100 voltage V of electric motor 620 is detected.
  • rate of change dV / dt of voltage V of electric motor 620 becomes equal to or greater than the second threshold value at time t1 (YES in S102)
  • the power storage device in S104 shown in FIG. 110 charging is limited.
  • the lamp 652 is turned on or blinked to notify the user that charging of the power storage device 110 is restricted.
  • Conditions necessary for charging power storage device 110 include conditions appropriately determined by the developer, such as a condition that plug 260 is connected to outlet 510B of external power supply 500B.
  • power storage device 110 is charged in a state where tension F of power receiving cord 250 is smaller than the first threshold value.
  • the tension F of the power receiving cord 250 is equal to or higher than the first threshold value, charging of the power storage device 110 is restricted. Therefore, when there is a possibility that the power receiving cord 250 is damaged, charging is restricted. Thereby, charging of power storage device 110 under an unfavorable situation is avoided.
  • 100 vehicle 110 power storage device, 130 motor generator, 200 charging device, 240 power receiving port, 245 lid, 250 power receiving cord, 260 plug, 500B external power supply, 510B outlet, 600 cord storage device, 610 cord reel, 611 gear, 620 Electric motor, 621 gear, 630 voltage sensor, 640 battery, 650 control unit, 652 lamp.

Abstract

Provided is a vehicle comprising: a cord accommodation device that houses an electricity-receiving cord as another path for recharging an electricity storage device using power from an external power source; and a recharging device that limits recharging of the electricity storage device when the tension (F) in the electricity-receiving cord exceeds a first threshold value.

Description

充電システム、車両および充電方法Charging system, vehicle and charging method
　本発明は、充電システム、車両および充電方法に関し、特に、蓄電装置に電力を供給するコードの張力に応じて充電を制限する技術に関する。 The present invention relates to a charging system, a vehicle, and a charging method, and more particularly to a technique for limiting charging according to the tension of a cord that supplies power to a power storage device.
　環境に配慮した車両として、蓄電装置（たとえば二次電池やキャパシタなど）を搭載し、蓄電装置に蓄えられた電力から生じる駆動力を用いて走行する車両が注目されている。このような車両には、たとえば電気自動車、ハイブリッド自動車、燃料電池車などが含まれる。そして、これらの車両に搭載される蓄電装置を発電効率の高い商用電源により充電する技術が提案されている。 2. Description of the Related Art As an environmentally friendly vehicle, a vehicle that is mounted with a power storage device (for example, a secondary battery or a capacitor) and that uses a driving force generated from electric power stored in the power storage device has attracted attention. Such vehicles include, for example, electric vehicles, hybrid vehicles, fuel cell vehicles, and the like. And the technique which charges the electrical storage apparatus mounted in these vehicles with a commercial power source with high electric power generation efficiency is proposed.
　ハイブリッド車においても、電気自動車と同様に、車両外部の電源（以下、単に「外部電源」とも称する。）から車載の蓄電装置の充電（以下、「外部充電」とも称する。）が可能な車両が知られている。たとえば、家屋に設けられた電源コンセントと車両に設けられた充電口とを受電用コードで接続することにより、一般家庭の電源から蓄電装置の充電が可能ないわゆる「プラグイン・ハイブリッド車」が知られている。これにより、ハイブリッド自動車の燃料消費効率を高めることが期待できる。 Also in a hybrid vehicle, a vehicle capable of charging an in-vehicle power storage device (hereinafter also referred to as “external charging”) from a power source outside the vehicle (hereinafter also simply referred to as “external power source”) as in the case of an electric vehicle. Are known. For example, there is a so-called “plug-in hybrid vehicle” that can charge a power storage device from a general household power source by connecting a power outlet provided in a house to a charging port provided in a vehicle with a power receiving cord. It has been. This can be expected to increase the fuel consumption efficiency of the hybrid vehicle.
　充電が完了した後、受電用コードは、たとえば特開２００３－２１９５１１号公報（特許文献１）に開示されるように、車両に設けられたコード収納部に収納される。 After charging is completed, the power receiving cord is accommodated in a cord accommodating portion provided in the vehicle as disclosed in, for example, Japanese Patent Application Laid-Open No. 2003-219511 (Patent Document 1).
特開２００３－２１９５１１号公報JP 2003-219511 A
　充電のためにコードを車体から引き出す際、コードの張力が大きくなり得る。コードの張力が大きくなると、コードが損傷し得る。コードが損傷した状態では、蓄電装置を適切に充電できないこともあり得る。したがって、蓄電装置を充電するのは好ましくない。 When pulling the cord from the vehicle body for charging, the cord tension can increase. When the tension of the cord increases, the cord can be damaged. When the cord is damaged, the power storage device may not be charged properly. Therefore, it is not preferable to charge the power storage device.
　本発明の目的は、好ましくない状況下での蓄電装置の充電を回避することである。 An object of the present invention is to avoid charging the power storage device under an unfavorable situation.
　充電システムは、蓄電装置に電力を供給するコードと、コードの張力が予め定められたしきい値を超えると蓄電装置の充電を制限する充電装置とを備える。 The charging system includes a cord that supplies power to the power storage device and a charging device that limits charging of the power storage device when the tension of the cord exceeds a predetermined threshold.
　車両は、蓄電装置に電力を供給するコードを収納する収納装置と、コードの張力が予め定められたしきい値を超えると蓄電装置の充電を制限する充電装置とを備える。 The vehicle includes a storage device that stores a cord that supplies power to the power storage device, and a charging device that limits charging of the power storage device when the tension of the cord exceeds a predetermined threshold.
　充電方法は、蓄電装置に電力を供給するコードの張力を推定するステップと、コードの張力が予め定められたしきい値を超えると蓄電装置の充電を制限するステップとを備える。 The charging method includes a step of estimating the tension of a cord that supplies power to the power storage device, and a step of restricting charging of the power storage device when the tension of the cord exceeds a predetermined threshold value.
　コードの張力が大きくなることによってコードが損傷した可能性がある場合には、充電が制限される。これにより、好ましくない状況下での蓄電装置の充電が回避される。 ∙ Charging is restricted if there is a possibility that the cord is damaged due to an increase in the tension of the cord. This avoids charging of the power storage device under undesirable conditions.
車両の全体ブロック図である。1 is an overall block diagram of a vehicle. コード収納装置の概略図である。It is the schematic of a cord storage apparatus. 受電用コードの推定張力Ｆと電動モータの電圧の変化率とを示す図である。It is a figure which shows the presumed tension | tensile_strength F of the cord for electric power reception, and the change rate of the voltage of an electric motor. 車両ＥＣＵが実行する処理の制御構造を示すフローチャートである。It is a flowchart which shows the control structure of the process which vehicle ECU performs. 電動モータの電圧の変化率を示すタイムチャートである。It is a time chart which shows the change rate of the voltage of an electric motor.
　以下、本発明の実施の形態について、図面を参照しながら詳細に説明する。なお、図中同一または相当部分には同一符号を付してその説明は繰り返さない。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.
　図１は、コード収納装置６００が搭載された車両１００の全体ブロック図である。
　図１を参照して、車両１００は、蓄電装置１１０と、システムメインリレー（System　Main　Relay：ＳＭＲ）と、ＰＣＵ（Power　Control　Unit）１２０と、モータジェネレータ１３０と、動力伝達ギヤ１４０と、駆動輪１５０と、車両ＥＣＵ（Electronic　Control　Unit）３００とを備える。 FIG. 1 is an overall block diagram of a vehicle 100 on which a cord storage device 600 is mounted.
Referring to FIG. 1, vehicle 100 includes a power storage device 110, a system main relay (SMR), a PCU (Power Control Unit) 120, a motor generator 130, a power transmission gear 140, and driving wheels. 150 and a vehicle ECU (Electronic Control Unit) 300.
　蓄電装置１１０は、充放電可能に構成された電力貯蔵要素である。蓄電装置１１０は、たとえば、リチウムイオン電池、ニッケル水素電池または鉛蓄電池などの二次電池、あるいは電気二重層キャパシタなどの蓄電素子を含んで構成される。 The power storage device 110 is a power storage element configured to be chargeable / dischargeable. The power storage device 110 includes, for example, a secondary battery such as a lithium ion battery, a nickel hydride battery, or a lead storage battery, or a power storage element such as an electric double layer capacitor.
　蓄電装置１１０は、電力線ＰＬ１および接地線ＮＬ１を介してＰＣＵ１２０に接続される。そして、蓄電装置１１０は、車両１００の駆動力を発生させるための電力をＰＣＵ１２０に供給する。また、蓄電装置１１０は、モータジェネレータ１３０で発電された電力を蓄電する。蓄電装置１１０の出力はたとえば２００Ｖ程度である。 The power storage device 110 is connected to the PCU 120 via the power line PL1 and the ground line NL1. Then, power storage device 110 supplies power for generating driving force of vehicle 100 to PCU 120. The power storage device 110 stores the electric power generated by the motor generator 130. The output of power storage device 110 is, for example, about 200V.
　ＳＭＲに含まれるリレーは、蓄電装置１１０とＰＣＵ１２０とを結ぶ電力線ＰＬ１および接地線ＮＬ１にそれぞれ介挿される。そして、ＳＭＲは、車両ＥＣＵ３００からの制御信号ＳＥ１に基づいて、蓄電装置１１０とＰＣＵ１２０との間での電力の供給と遮断とを切替える。 The relays included in the SMR are respectively inserted in the power line PL1 and the ground line NL1 that connect the power storage device 110 and the PCU 120. Then, SMR switches between power supply and cutoff between power storage device 110 and PCU 120 based on control signal SE <b> 1 from vehicle ECU 300.
　ＰＣＵ１２０は、いずれも図示しないが、蓄電装置１１０からの電源電圧を昇圧するためのコンバータや、コンバータにより昇圧された直流電力を、モータジェネレータ１３０を駆動するための交流電力に変換するためのインバータなどを含んで構成される。 PCU 120 is not shown, but includes a converter for boosting the power supply voltage from power storage device 110, an inverter for converting DC power boosted by the converter into AC power for driving motor generator 130, and the like. It is comprised including.
　これらのコンバータおよびインバータは、車両ＥＣＵ３００からの制御信号ＰＷＣ，ＰＷＩによってそれぞれ制御される。 These converters and inverters are controlled by control signals PWC and PWI from the vehicle ECU 300, respectively.
　モータジェネレータ１３０は交流回転電機であり、たとえば、永久磁石が埋設されたロータを備える永久磁石型同期電動機である。 The motor generator 130 is an AC rotating electric machine, for example, a permanent magnet type synchronous motor including a rotor in which a permanent magnet is embedded.
　モータジェネレータ１３０の出力トルクは、減速機や動力分割機構を含んで構成される動力伝達ギヤ１４０を介して駆動輪１５０に伝達されて、車両１００を走行させる。モータジェネレータ１３０は、車両１００の回生制動動作時には、駆動輪１５０の回転力によって発電することができる。そして、その発電電力は、ＰＣＵ１２０によって蓄電装置１１０の充電電力に変換される。 The output torque of the motor generator 130 is transmitted to the drive wheels 150 via the power transmission gear 140 configured to include a speed reducer and a power split mechanism, thereby causing the vehicle 100 to travel. The motor generator 130 can generate electric power by the rotational force of the drive wheels 150 during the regenerative braking operation of the vehicle 100. Then, the generated power is converted into charging power for power storage device 110 by PCU 120.
　なお、図１においては、モータジェネレータが１つ設けられる構成が示されるが、モータジェネレータの数はこれに限定されず、モータジェネレータを複数設ける構成としてもよい。 1 shows a configuration in which one motor generator is provided, the number of motor generators is not limited to this, and a configuration in which a plurality of motor generators are provided may be employed.
　また、モータジェネレータ１３０の他にエンジン（図示せず）が搭載されたハイブリッド自動車では、このエンジンおよびモータジェネレータ１３０を協調的に動作させることによって、必要な車両駆動力が発生される。この場合、エンジンの回転による発電電力を用いて、蓄電装置１１０を充電することも可能である。 Further, in a hybrid vehicle equipped with an engine (not shown) in addition to the motor generator 130, a necessary vehicle driving force is generated by operating the engine and the motor generator 130 in a coordinated manner. In this case, it is also possible to charge the power storage device 110 using the power generated by the rotation of the engine.
　すなわち、本実施の形態における車両１００は、車両駆動力発生用の電動機を搭載する車両を示すものであり、エンジンおよび電動機により車両駆動力を発生するハイブリッド自動車、またはエンジンを搭載しない電気自動車および燃料電池自動車などを含む。 That is, vehicle 100 in the present embodiment indicates a vehicle equipped with an electric motor for generating vehicle driving force, and is a hybrid vehicle that generates vehicle driving force by an engine and an electric motor, or an electric vehicle and fuel not equipped with an engine. Includes battery cars.
　車両ＥＣＵ３００は、いずれも図１には図示しないがＣＰＵ（Central　Processing　Unit）、記憶装置および入出力バッファを含み、各センサ等からの信号の入力や各機器への制御信号の出力を行なうとともに、車両１００および各機器の制御を行なう。なお、これらの制御については、ソフトウェアによる処理に限られず、専用のハードウェア（電子回路）で処理することも可能である。 The vehicle ECU 300 includes a CPU (Central Processing Unit), a storage device, and an input / output buffer (not shown in FIG. 1), and inputs signals from each sensor and outputs control signals to each device. The vehicle 100 and each device are controlled. Note that these controls are not limited to processing by software, and can be processed by dedicated hardware (electronic circuit).
　車両ＥＣＵ３００は、ＰＣＵ１２０、ＳＭＲなどを制御するための制御信号を生成して出力する。なお、図１においては、車両ＥＣＵ３００を１つの制御装置を設ける構成としているが、たとえば、ＰＣＵ１２０用の制御装置や蓄電装置１１０用の制御装置などのように、機能ごとまたは制御対象機器ごとに個別の制御装置を設ける構成としてもよい。 Vehicle ECU 300 generates and outputs a control signal for controlling PCU 120, SMR, and the like. In FIG. 1, the vehicle ECU 300 is configured to have one control device. However, for example, the control unit for the PCU 120 or the control device for the power storage device 110 is individually provided for each function or for each control target device. It is good also as a structure which provides this control apparatus.
　車両１００は、外部電源５００Ａからの電力によって蓄電装置１１０を充電するための構成として、インレット２７０と、充電装置２００と、リレーＲＹ２とを含む。 Vehicle 100 includes an inlet 270, a charging device 200, and a relay RY2 as a configuration for charging power storage device 110 with electric power from external power supply 500A.
　インレット２７０は、車両１００の外表面に設けられた受電ポート２８０に設けられる。また、受電ポート２８０には、外部充電を行なわないときにインレット２７０を覆うための、開閉可能なリッド２８５が結合される。 The inlet 270 is provided in a power receiving port 280 provided on the outer surface of the vehicle 100. The power receiving port 280 is coupled with an openable / closable lid 285 for covering the inlet 270 when external charging is not performed.
　インレット２７０には、充電ケーブル４００の充電コネクタ４１０が接続される。そして、外部電源５００Ａからの電力が、充電ケーブル４００を介して車両１００に伝達される。 The charging connector 410 of the charging cable 400 is connected to the inlet 270. Then, electric power from external power source 500 </ b> A is transmitted to vehicle 100 through charging cable 400.
　充電ケーブル４００は、充電コネクタ４１０に加えて、外部電源５００Ａのコンセント５１０Ａに接続するためのプラグ４２０と、充電コネクタ４１０およびプラグ４２０とを接続する電線部４３０とを含む。なお、電線部４３０には、外部電源５００Ａからの電力の供給および遮断を切替えるための充電回路遮断装置（図示せず）が含まれるようにしてもよい。 Charging cable 400 includes, in addition to charging connector 410, plug 420 for connecting to outlet 510 </ b> A of external power supply 500 </ b> A, and electric wire portion 430 for connecting charging connector 410 and plug 420. Note that the electric wire portion 430 may include a charging circuit interrupting device (not shown) for switching between supply and interruption of power from the external power source 500A.
　インレット２７０は、電力線ＡＣＬ１，ＡＣＬ２を介して、充電装置２００に接続される。 The inlet 270 is connected to the charging device 200 via the power lines ACL1 and ACL2.
　また、車両１００は、外部電源５００Ｂからの電力によって蓄電装置１１０を充電するための他の経路として、受電用コード２５０と、コード収納装置６００とをさらに備える。 Vehicle 100 further includes a power receiving cord 250 and a cord storage device 600 as another path for charging power storage device 110 with electric power from external power supply 500B.
　受電用コード２５０の一方端には、外部電源５００Ｂのコンセント５１０Ｂに接続するためのプラグ２６０が接続される。また、受電用コード２５０の他方端は、充電装置２００に接続された電力線ＡＣＬ３，ＡＣＬ４に接続される。 A plug 260 for connecting to the outlet 510B of the external power source 500B is connected to one end of the power receiving cord 250. The other end of power reception cord 250 is connected to power lines ACL 3 and ACL 4 connected to charging device 200.
　また、電力線ＡＣＬ３，ＡＣＬ４は、リレーＲＹ３を介して、電力線ＡＣＬ１，ＡＣＬ２に接続される。リレーＲＹ３は、車両ＥＣＵ３００からの制御信号ＳＥ３により制御される。リレーＲＹ３は、受電用コード２５０を用いた外部充電が行なわれる場合に電気的に接続され、受電用コード２５０を用いた外部充電が行なわれない場合には非接続とされる。 The power lines ACL3 and ACL4 are connected to the power lines ACL1 and ACL2 via the relay RY3. Relay RY3 is controlled by a control signal SE3 from vehicle ECU 300. Relay RY3 is electrically connected when external charging using power receiving cord 250 is performed, and is not connected when external charging using power receiving cord 250 is not performed.
　受電用コード２５０は、外部充電が行なわれないときには、コード収納装置６００に巻き取られて収納される。そして、受電用コード２５０を用いて外部充電が行なわれる際には、車両１００の外表面に設けられた受電ポート２４０の引出口（図示せず）から引き出される。そして、プラグ２６０がコンセント５１０Ｂに接続されることによって、外部電源５００Ｂからの電力が車両１００に伝達される。 The power receiving cord 250 is wound and stored in the cord storage device 600 when external charging is not performed. Then, when external charging is performed using power receiving cord 250, the power is extracted from an outlet (not shown) of power receiving port 240 provided on the outer surface of vehicle 100. Then, when plug 260 is connected to outlet 510B, the electric power from external power supply 500B is transmitted to vehicle 100.
　なお、図１においては、充電ケーブル４００を用いる場合、および受電用コード２５０を用いる場合で、それぞれ外部電源５００Ａのコンセント５１０Ａおよび外部電源５００Ｂのコンセント５１０Ｂに接続される構成を示すが、外部電源５００Ａおよび５００Ｂの電源電圧は同じ電圧としてもよいし、異なる電圧としてもよい。異なる電圧とする場合には、たとえば、外部電源の電圧が２００Ｖの場合は充電ケーブル４００を用いるようにし、外部電源の電圧が１００Ｖの場合は受電用コード２５０を用いるようにしてもよい。 FIG. 1 shows a configuration in which the charging cable 400 and the power receiving cord 250 are used, which are connected to the outlet 510A of the external power supply 500A and the outlet 510B of the external power supply 500B, respectively. And the power supply voltage of 500B may be the same voltage or different voltages. When different voltages are used, for example, the charging cable 400 may be used when the voltage of the external power supply is 200V, and the power receiving cord 250 may be used when the voltage of the external power supply is 100V.
　また、受電ポート２４０には、外部充電を行なわないときに引出口を覆うための、開閉可能なリッド２４５が結合される。 Also, the power receiving port 240 is coupled with an openable / closable lid 245 for covering the outlet when external charging is not performed.
　充電装置２００は、電力線ＡＣＬ１，ＡＣＬ２を介して、インレット２７０に接続される。また、充電装置２００は、リレーＲＹ２を介して、電力線ＰＬ２および接地線ＮＬ２によって蓄電装置１１０に接続される。 The charging device 200 is connected to the inlet 270 via the power lines ACL1 and ACL2. Charging device 200 is connected to power storage device 110 through power line PL2 and ground line NL2 via relay RY2.
　充電装置２００は、インレット２７０または受電用コード２５０から供給される交流電力を、蓄電装置１１０の充電電力に変換する。 The charging device 200 converts AC power supplied from the inlet 270 or the power receiving cord 250 into charging power for the power storage device 110.
　図２を参照して、コード収納装置６００は、コードリール６１０と、電動モータ６２０と、制御ユニット６５０とを備える。 Referring to FIG. 2, the cord storage device 600 includes a cord reel 610, an electric motor 620, and a control unit 650.
　コードリール６１０には、円筒状の胴部が設けられ、その胴部に受電用コード２５０が巻き付けられる。そして、受電用コード２５０を用いて外部充電が行なわれるときには、利用者が受電用コード２５０を引っ張ることにより、コードリール６１０に巻き付けられた受電用コード２５０が引き出される。また、外部充電が行なわれないときには、コードリール６１０は、受電用コード２５０を巻き取って収納する。 The cord reel 610 is provided with a cylindrical trunk portion, and the power receiving cord 250 is wound around the trunk portion. When external charging is performed using the power receiving cord 250, the user pulls the power receiving cord 250, whereby the power receiving cord 250 wound around the cord reel 610 is pulled out. When the external charging is not performed, the cord reel 610 winds and stores the power receiving cord 250.
　電動モータ６２０の回転軸には、ギヤ６２１が設けられる。ギヤ６２１はコードリール６１０の側面に設けられたギヤ６１１と係合可能に配置される。 A gear 621 is provided on the rotating shaft of the electric motor 620. The gear 621 is disposed so as to be engageable with a gear 611 provided on the side surface of the cord reel 610.
　ギヤ６２１は、受電用コード２５０をコードリール６１０に巻き取る際に、電動モータ６２０により回転させられる。たとえば利用者がスイッチ等を押すと、電動モータ６２０により、受電用コード２５０を巻き取る方向にコードリール６１０が回転される。これにより、受電用コード２５０がコード収納装置６００に収納される。 The gear 621 is rotated by the electric motor 620 when the power receiving cord 250 is wound around the cord reel 610. For example, when the user presses a switch or the like, the cord reel 610 is rotated by the electric motor 620 in the direction in which the power receiving cord 250 is wound. As a result, the power receiving cord 250 is stored in the cord storage device 600.
　電動モータ６２０を制御するため、電動モータ６２０の電圧Ｖが、電圧センサ６３０により検出される。検出結果を表す信号は、制御ユニット６５０に入力される。 In order to control the electric motor 620, the voltage V of the electric motor 620 is detected by the voltage sensor 630. A signal representing the detection result is input to the control unit 650.
　電動モータ６２０は、バッテリ６４０から供給される電力によって駆動する。一方、受電用コード２５０が引き出される際、電動モータ６２０の回転軸は、コードリール６１０の回転に伴って回転せしめられる。 The electric motor 620 is driven by electric power supplied from the battery 640. On the other hand, when the power receiving cord 250 is pulled out, the rotating shaft of the electric motor 620 is rotated with the rotation of the cord reel 610.
　受電用コード２５０が引き出される際に発生する電動モータ６２０の誘起電圧Ｖは、下記の式１により表される。 The induced voltage V of the electric motor 620 generated when the power receiving cord 250 is pulled out is expressed by the following formula 1.
Figure JPOXMLDOC01-appb-M000001
Figure JPOXMLDOC01-appb-M000001
　式１において、「Ｒ」は電動モータ６２０の抵抗を表す。「ｉ」は電動モータ６２０の電流を表す。「Ｌ」は自己インダクタンスを表す。「ω」は電動モータ６２０の回転軸の角速度を表す。「ＫE」は誘起電圧定数を表す。式１において、電動モータ６２０の出力軸回転数が高い場合には、右辺の第１項および第２項は、第３項と比較して無視できるほど小さい。したがって、式１は、下記の式２のように近似することができる。 In Equation 1, “R” represents the resistance of the electric motor 620. “I” represents the current of the electric motor 620. “L” represents self-inductance. “Ω” represents the angular velocity of the rotating shaft of the electric motor 620. “K E ” represents an induced voltage constant. In Expression 1, when the output shaft rotational speed of the electric motor 620 is high, the first and second terms on the right side are negligibly small compared to the third term. Therefore, Equation 1 can be approximated as Equation 2 below.
Figure JPOXMLDOC01-appb-M000002
Figure JPOXMLDOC01-appb-M000002
　さらに、電動モータ６２０の運動方程式は、下記の式３により示される。 Furthermore, the equation of motion of the electric motor 620 is expressed by the following equation 3.
Figure JPOXMLDOC01-appb-M000003
Figure JPOXMLDOC01-appb-M000003
　式３において、「Ｆ」は電動モータ６２０の回転軸を回転させる力、言い換えると、受電用コード２５０の張力を表す。「Ｄ」は摩擦係数を表す。「Ｊ」は電動モータ６２０のイナーシャを表す。式３において、右辺の第１項は、第２項と比較して無視できるほど小さい。したがって、式３は、下記の式４のように近似することができる。 In Equation 3, “F” represents the force that rotates the rotating shaft of the electric motor 620, in other words, the tension of the power receiving cord 250. “D” represents a coefficient of friction. “J” represents the inertia of the electric motor 620. In Equation 3, the first term on the right side is negligibly small compared to the second term. Therefore, Equation 3 can be approximated as Equation 4 below.
Figure JPOXMLDOC01-appb-M000004
Figure JPOXMLDOC01-appb-M000004
　式２を時間ｔで微分して得られる式と、式４とから、下記の式５が得られる。 From the equation obtained by differentiating equation 2 with time t and equation 4, the following equation 5 is obtained.
Figure JPOXMLDOC01-appb-M000005
Figure JPOXMLDOC01-appb-M000005
　「Ｊ」および「ＫE」は定数であることから、受電用コード２５０の張力Ｆは、電動モータ６２０の誘起電圧Ｖの変化率に比例する値として式５を用いて推定される。なお、電圧の代わりにもしくは加えて電動モータ６２０の電流ｉを用いるようにしてもよい。すなわち、式１の右辺の第１項を無視せずに張力Ｆを推定するようにしてもよい。その他、電動モータ６２０の回転速度ωを検出し、検出した回転速度ωに基づいて式３または式４を用いて張力Ｆを推定するようにしてもよい。 Since “J” and “K E ” are constants, the tension F of the power receiving cord 250 is estimated using Equation 5 as a value proportional to the rate of change of the induced voltage V of the electric motor 620. Note that the current i of the electric motor 620 may be used instead of or in addition to the voltage. That is, the tension F may be estimated without ignoring the first term on the right side of Equation 1. In addition, the rotational speed ω of the electric motor 620 may be detected, and the tension F may be estimated using Formula 3 or Formula 4 based on the detected rotational speed ω.
　張力Ｆを推定するコンピュータは、制御ユニット６５０であってもよく、車両ＥＣＵ３００であってもよい。制御ユニット６５０が張力Ｆを推定する場合、推定された張力Ｆを表す信号が制御ユニット６５０から車両ＥＣＵ３００に送信される。車両ＥＣＵ３００がが張力Ｆを推定する場合、電動モータ６２０の電圧Ｖを表す信号が制御ユニット６５０から車両ＥＣＵ３００に送信される。電動モータ６２０の電圧Ｖが、電圧センサ６３０から車両ＥＣＵ３００に直接送信されてもよい。 The computer that estimates the tension F may be the control unit 650 or the vehicle ECU 300. When the control unit 650 estimates the tension F, a signal representing the estimated tension F is transmitted from the control unit 650 to the vehicle ECU 300. When vehicle ECU 300 estimates tension F, a signal representing voltage V of electric motor 620 is transmitted from control unit 650 to vehicle ECU 300. Voltage V of electric motor 620 may be directly transmitted from voltage sensor 630 to vehicle ECU 300.
　本実施の形態において、充電装置２００は、図３に示すように、推定された張力Ｆが第１しきい値以上になると、蓄電装置１１０の充電を制限するように充電装置２００が車両ＥＣＵ３００によって制御される。具体的には、蓄電装置１１０の充電が禁止され、充電を実行するためのその他の条件が満たされても、充電が開始されない。なお、充電を制限する方法はこれに限定されない。 In the present embodiment, as shown in FIG. 3, charging device 200 is configured by vehicle ECU 300 to limit charging of power storage device 110 when estimated tension F is equal to or greater than a first threshold value. Be controlled. Specifically, charging of power storage device 110 is prohibited, and charging is not started even if other conditions for executing charging are satisfied. Note that the method of limiting charging is not limited to this.
　本実施の形態においては、張力Ｆの値を算出する代わりに、電動モータ６２０の電圧Ｖの変化率ｄＶ／ｄｔを用いて、張力Ｆが第１しきい値よりも小さいか否かが判断される。具体的には、電動モータ６２０の電圧Ｖの変化率ｄＶ／ｄｔが第２しきい値よりも小さいと、張力Ｆが第１しきい値よりも小さいと判断される。電動モータ６２０の電圧Ｖの変化率ｄＶ／ｄｔが第２しきい値以上であると、張力Ｆが第１しきい値以上であると判断される。第２しきい値は、張力Ｆが第１しきい値と一致するときの変化率ｄＶ／ｄｔである。張力Ｆの値を前述した式５を用いて算出し、算出された張力Ｆと第１しきい値とを直接比較するようにしてもよい。 In this embodiment, instead of calculating the value of the tension F, it is determined whether the tension F is smaller than the first threshold value using the rate of change dV / dt of the voltage V of the electric motor 620. The Specifically, when change rate dV / dt of voltage V of electric motor 620 is smaller than the second threshold value, it is determined that tension F is smaller than the first threshold value. When change rate dV / dt of voltage V of electric motor 620 is equal to or greater than the second threshold value, it is determined that tension F is equal to or greater than the first threshold value. The second threshold value is a change rate dV / dt when the tension F matches the first threshold value. The value of the tension F may be calculated using Equation 5 described above, and the calculated tension F and the first threshold value may be directly compared.
　電動モータ６２０の電圧Ｖの変化率ｄＶ／ｄｔが第２しきい値以上となり、すなわち張力Ｆが第１しきい値以上となり、蓄電装置１１０の充電が制限される場合、たとえば、図１に示すランプ６５２が点灯または点滅される。これにより、蓄電装置１１０の充電が制限されることが利用者に報知される。スピーカから音を発することによって、蓄電装置１１０の充電が制限されることを利用者に報知するようにしてもよい。また、ディスプレイ等に蓄電装置１１０の充電が制限される旨を表示するようにしてもよい。その他、周知の種々の装置を利用して、蓄電装置１１０の充電が制限されることを利用者に報知するようにしてもよい。 When the rate of change dV / dt of the voltage V of the electric motor 620 is greater than or equal to the second threshold value, that is, when the tension F is greater than or equal to the first threshold value and charging of the power storage device 110 is restricted, for example, as shown in FIG. The lamp 652 is turned on or blinked. This notifies the user that charging of power storage device 110 is restricted. You may make it alert | report to a user that charge of the electrical storage apparatus 110 is restrict | limited by emitting a sound from a speaker. In addition, a message indicating that charging of power storage device 110 is restricted may be displayed on a display or the like. In addition, you may make it alert | report to a user that charge of the electrical storage apparatus 110 is restrict | limited using a well-known various apparatus.
　図４を参照して、車両ＥＣＵ３００が実行する処理について説明する。
　ステップ（以下、ステップをＳと略す）１００にて、電動モータ６２０の電圧Ｖが検出される。図５に示すように、時間ｔ１において、電動モータ６２０の電圧Ｖの変化率ｄＶ／ｄｔが第２しきい値以上になると（Ｓ１０２にてＹＥＳ）、図４に示されるＳ１０４にて、蓄電装置１１０の充電が制限される。この場合、Ｓ１０６にて、ランプ６５２が点灯または点滅されることによって、蓄電装置１１０の充電が制限されることが利用者に報知される。 With reference to FIG. 4, the process which vehicle ECU300 performs is demonstrated.
In step (hereinafter, step is abbreviated as S) 100, voltage V of electric motor 620 is detected. As shown in FIG. 5, when rate of change dV / dt of voltage V of electric motor 620 becomes equal to or greater than the second threshold value at time t1 (YES in S102), the power storage device in S104 shown in FIG. 110 charging is limited. In this case, in S106, the lamp 652 is turned on or blinked to notify the user that charging of the power storage device 110 is restricted.
　一方、電動モータ６２０の電圧Ｖの変化率ｄＶ／ｄｔが第２しきい値より小さいと（Ｓ１０２にてＮＯ）、Ｓ１０８にて、蓄電装置１１０を充電するために必要な条件が満たされたか否かが判断される。蓄電装置１１０を充電するために必要な条件は、たとえば、プラグ２６０が外部電源５００Ｂのコンセント５１０Ｂに接続されたという条件など、開発者によって適宜定められる条件を含む。 On the other hand, if rate of change dV / dt of voltage V of electric motor 620 is smaller than the second threshold value (NO in S102), whether or not a condition necessary for charging power storage device 110 is satisfied in S108. Is judged. Conditions necessary for charging power storage device 110 include conditions appropriately determined by the developer, such as a condition that plug 260 is connected to outlet 510B of external power supply 500B.
　蓄電装置１１０を充電するために必要な条件が満たされると（Ｓ１０８にてＹＥＳ）、すなわち、蓄電装置１１０を充電するための準備が完了すると、Ｓ１１０にて、蓄電装置１１０が充電される。 When conditions necessary for charging power storage device 110 are satisfied (YES in S108), that is, when preparation for charging power storage device 110 is completed, power storage device 110 is charged in S110.
　以上のように、本実施の形態において、受電用コード２５０の張力Ｆが第１しきい値より小さい状態において蓄電装置１１０が充電される。一方、受電用コード２５０の張力Ｆが第１しきい値以上になると、蓄電装置１１０の充電が制限される。したがって、受電用コード２５０が損傷した可能性がある場合には、充電が制限される。これにより、好ましくない状況下での蓄電装置１１０の充電が回避される。 As described above, in the present embodiment, power storage device 110 is charged in a state where tension F of power receiving cord 250 is smaller than the first threshold value. On the other hand, when the tension F of the power receiving cord 250 is equal to or higher than the first threshold value, charging of the power storage device 110 is restricted. Therefore, when there is a possibility that the power receiving cord 250 is damaged, charging is restricted. Thereby, charging of power storage device 110 under an unfavorable situation is avoided.
　今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は上記した説明ではなくて請求の範囲によって示され、請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
１００　車両、１１０　蓄電装置、１３０　モータジェネレータ、２００　充電装置、２４０　受電ポート、２４５　リッド、２５０　受電用コード、２６０　プラグ、５００Ｂ　外部電源、５１０Ｂ　コンセント、６００　コード収納装置、６１０　コードリール、６１１　ギヤ、６２０　電動モータ、６２１　ギヤ、６３０　電圧センサ、６４０　バッテリ、６５０　制御ユニット、６５２　ランプ。 100 vehicle, 110 power storage device, 130 motor generator, 200 charging device, 240 power receiving port, 245 lid, 250 power receiving cord, 260 plug, 500B external power supply, 510B outlet, 600 cord storage device, 610 cord reel, 611 gear, 620 Electric motor, 621 gear, 630 voltage sensor, 640 battery, 650 control unit, 652 lamp.

Claims (7)

  1. 　蓄電装置（１１０）に電力を供給するコード（２５０）と、
    　前記コード（２５０）の張力が予め定められたしきい値を超えると前記蓄電装置（１１０）の充電を制限する充電装置（２００）とを備える、充電システム。     A cord (250) for supplying power to the power storage device (110);
    A charging system comprising: a charging device (200) that limits charging of the power storage device (110) when a tension of the cord (250) exceeds a predetermined threshold value.
  2. 　前記充電システムは、
    　前記コード（２５０）が巻き付けられるリール（６１０）と、
    　前記リール（６１０）を回転させる電動モータ（６２０）とをさらに備え、
    　前記コード（２５０）の張力は、前記電動モータ（６２０）の電圧から推定される、請求項１に記載の充電システム。     The charging system includes:
    A reel (610) around which the cord (250) is wound;
    An electric motor (620) for rotating the reel (610),
    The charging system of claim 1, wherein the tension of the cord (250) is estimated from a voltage of the electric motor (620).
  3. 　前記蓄電装置（１１０）の充電が制限されたことを使用者に報知する報知装置（６５２）をさらに備える、請求項１に記載の充電システム。 The charging system according to claim 1, further comprising a notification device (652) for notifying a user that charging of the power storage device (110) is restricted.
  4. 　蓄電装置（１１０）に電力を供給するコード（２５０）を収納する収納装置（６００）と、
    　前記コード（２５０）の張力が予め定められたしきい値を超えると前記蓄電装置（１１０）の充電を制限する充電装置（２００）とを備える、車両。     A storage device (600) for storing a cord (250) for supplying power to the power storage device (110);
    A vehicle comprising: a charging device (200) that restricts charging of the power storage device (110) when a tension of the cord (250) exceeds a predetermined threshold value.
  5. 　前記収納装置（６００）は、
    　前記コード（２５０）が巻き付けられるリール（６１０）と、
    　前記リール（６１０）を回転させる電動モータ（６２０）とを含み、
    　前記コード（２５０）の張力は、前記電動モータ（６２０）の電圧から推定される、請求項４に記載の車両。     The storage device (600)
    A reel (610) around which the cord (250) is wound;
    An electric motor (620) for rotating the reel (610),
    The vehicle according to claim 4, wherein the tension of the cord (250) is estimated from the voltage of the electric motor (620).
  6. 　前記蓄電装置（１１０）の充電が制限されたことを使用者に報知する報知装置（６５２）をさらに備える、請求項４に記載の車両。 The vehicle according to claim 4, further comprising a notification device (652) for notifying a user that charging of the power storage device (110) is restricted.
  7. 　蓄電装置（１１０）に電力を供給するコード（２５０）の張力を推定するステップと、
    　前記コード（２５０）の張力が予め定められたしきい値を超えると前記蓄電装置（１１０）の充電を制限するステップとを備える、充電方法。     Estimating the tension of the cord (250) for supplying power to the power storage device (110);
    Charging the power storage device (110) when the tension of the cord (250) exceeds a predetermined threshold.
PCT/JP2010/073522 2010-12-27 2010-12-27 Recharging system, vehicle, and recharging method WO2012090261A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59172915A (en) * 1983-03-20 1984-09-29 昭和電線電纜株式会社 Method of controlling feeding/returning of cable for mobile device
JPH05276675A (en) * 1992-03-27 1993-10-22 Nissan Motor Co Ltd Charger
JP2002098179A (en) * 2000-09-21 2002-04-05 Toyota Motor Corp Remote-control device for electric actuator and parking brake system for vehicle
JP2003219511A (en) * 2002-01-17 2003-07-31 Mitsubishi Motors Corp Electric vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59172915A (en) * 1983-03-20 1984-09-29 昭和電線電纜株式会社 Method of controlling feeding/returning of cable for mobile device
JPH05276675A (en) * 1992-03-27 1993-10-22 Nissan Motor Co Ltd Charger
JP2002098179A (en) * 2000-09-21 2002-04-05 Toyota Motor Corp Remote-control device for electric actuator and parking brake system for vehicle
JP2003219511A (en) * 2002-01-17 2003-07-31 Mitsubishi Motors Corp Electric vehicle

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