US20190061538A1 - Vehicle - Google Patents
Vehicle Download PDFInfo
- Publication number
- US20190061538A1 US20190061538A1 US16/020,369 US201816020369A US2019061538A1 US 20190061538 A1 US20190061538 A1 US 20190061538A1 US 201816020369 A US201816020369 A US 201816020369A US 2019061538 A1 US2019061538 A1 US 2019061538A1
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- US
- United States
- Prior art keywords
- inlet
- charging
- state
- lock mechanism
- charging connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 81
- 238000001514 detection method Methods 0.000 description 14
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- 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
-
- B60L11/1818—
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/22—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using hooks or like elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
-
- 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
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
- H02G3/0616—Joints for connecting tubing to casing
- H02G3/0625—Joints for connecting tubing to casing with means for preventing disengagement of conductors
-
- B60L11/1838—
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
- F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
- F16B2/10—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using pivoting jaws
-
- 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
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
-
- 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 disclosure relates to a vehicle on which external charging is performed, the external charging being charging of an electric power storage device with electric power supplied by a charging cable.
- a vehicle that is externally charged is disclosed in Japanese Unexamined Patent. Application Publication No. 2015-72855 UP 2015-72855 A).
- a charging connector of a charging cable and an inlet are engaged with each other by a lock pin for preventing removal of the charging connector from the inlet.
- the vehicle allows external charging when the charging connector and the inlet are engaged with each other by the lock pin and prohibits external charging when the charging connector and the inlet are not engaged with each other by the lock pin. As a result, removal of the charging connector from the inlet during external charging is prevented.
- Vehicles on which external charging is performed include those provided with a cable lock mechanism so that the state where the charging connector and the inlet are engaged with each other (hereinafter, referred to as an “engagement state”) is not released for third-party mischief or the like.
- the cable lock mechanism is configured to switch between a lock state where removal of the charging connector from the inlet is restricted and an unlock state where removal of the charging connector from the inlet is allowed.
- the charging connector is removed from the inlet in a state where a current with a predetermined value or more (hereinafter, also referred to as a “large current”) flows (hereinafter, also referred to as “removal with the large current”) once external charging is allowed in a case where the cable lock mechanism is in the unlock state.
- a current with a predetermined value or more hereinafter, also referred to as a “large current”
- the area of contact between the charging connector and the inlet may be reduced during removal of the charging connector from the inlet, and this may result in a phenomenon in which the large current locally flows and an allowable temperature is exceeded.
- the present disclosure provides a vehicle that can be externally charged, with the removal with the large current suppressed, in a case where the cable lock mechanism is in the unlock state.
- An aspect of the present disclosure relates to a vehicle in which an electric power storage device is mounted and which is configured to execute external charging for charging the electric power storage device with electric power supplied by a charging cable.
- the vehicle includes an inlet, a cable lock mechanism, and a control device.
- the inlet is configured to be connected to a charging connector disposed at a tip of the charging cable.
- the cable lock mechanism is disposed near the inlet and is configured to switch between a lock state where removal of the charging connector from the inlet is restricted and an unlock state where removal of the charging connector from the inlet is allowed.
- the control device is configured to select a first mode in which the electric power storage device is allowed to be charged at a first current value in a case where the cable lock mechanism is in the lock state with the charging connector and the inlet connected to each other, and select a second mode in which the electric power storage device is allowed to be charged at a second current value less than the first current value in a case where the cable lock mechanism is in the unlock state with the chanting connector and the inlet connected to each other.
- charging of the electric power storage device is allowed even when the cable lock mechanism is in the unlock state.
- the charging is allowed at the second current value (current value equal to or less than a predetermined value: small current), which is less than the first current value (current value equal to or greater than the predetermined value: large current) allowed in a case where the cable lock mechanism is in the lock state. Therefore, charging of the electric power storage device is allowed, at the second current value, even in a case where the cable lock mechanism is in the unlock state and removal with the large current can be suppressed even in, a case where the charging connector is removed from the inlet.
- the inlet may be configured to be engaged with the charging connector.
- the control device may be configured to select the first mode in a case where the cable lock mechanism is in the lock state with the charging connector and the inlet engaged with each other.
- the control device may be configured to select the second mode in a case where the cable lock mechanism is in the unlock state with the charging connector and the inlet engaged with each other.
- the first mode and the second mode are selected in accordance with the states of the cable lock mechanism on the premise that the charging, connector and the inlet are engaged with each other.
- the charging connector and the inlet remain engaged with each other even in a case where the cable lock mechanism is in the unlock state. Accordingly, the charging connector is unlikely to be removed from the inlet, even in a case where external charging is performed with the cable lock mechanism in the unlock state, with the exception of a case where, for example, the engagement state is intentionally released. Therefore, removal of the charging, connector from the inlet during external charging with the small current can also be suppressed.
- the first current value may be a current value greater than 16 amperes and tie second current value may be a current value less than 16 amperes.
- flowing of a current greater than 16 amperes can be suppressed in the unlock state. Accordingly, removal with the large current does not occur even in a case where the charging connector is removed from the inlet during external charging.
- control device may be configured to execute the charging of the electric power storage device based on a selected charge mode.
- external charging can be executed, with removal with the large current suppressed, in the unlock state of the cable lock mechanism.
- FIG. 1 is an overall block diagram of a vehicle
- FIG. 2 is a diagram illustrating the structure of a charging cable, an inlet, and the vicinity thereof;
- FIG. 3 is a sectional view of the inlet and a charging connector in a lock state of a cable lock mechanism
- FIG. 4 is a sectional view of the inlet and the charging connector in an unlock state of the cable lock mechanism
- FIG. 5 is a flowchart with which an ECU determines the availability of charging from an external electric power supply device to an electric power storage device;
- FIG. 6 is another sectional view of the inlet and the charging connector in the lock state of the cable lock mechanism.
- FIG. 7 is another sectional view of the inlet and the charging connector in the unlock state of the cable lock mechanism.
- FIG. 1 is an overall block diagram of a vehicle 1 according to the present embodiment.
- the vehicle 1 travels by driving a traveling motor (not illustrated) by using electric power stored in an electric power storage device 100 .
- the vehicle 1 is provided with the electric power storage device 100 storing the direct current electric power for driving the traveling motor and an electronic control unit (ECU) 300 performing vehicle control.
- the ECU 300 is a computer including, for example, an internal central processing unit (CPU) and an internal memory.
- the vehicle 1 is configured such that the electric power storage device 100 can be charged with electric power (hereinafter, also referred to as “external electric power”) supplied via a charging cable 400 from an electric power supply device (hereinafter, also referred to as an “external electric power supply device”) 500 disposed outside the vehicle 1 .
- the external electric power is alternating current electric power.
- the vehicle 1 is provided with an inlet 220 configured to be connectable to a connecting portion 413 disposed at a tip of a charging connector 410 of the charging cable 400 and formed in a substantially cylindrical shape and a charger 200 disposed between the inlet 220 and the electric power storage device 100 .
- the inlet 220 is disposed in the rear side surface of the vehicle body.
- the charger 200 outputs the external electric power (alternating current electric power) received by the inlet 220 to the electric power storage device 100 after converting the external electric power into electric power (direct current electric power) with which the electric power storage device 100 can be charged.
- a cable lock switch 10 is disposed near (at a position adjacent to) the inlet 220 .
- the cable lock switch 10 outputs, to the ECU 300 and in response to user operation, a request for switching between fixing (lock) and unfixing (unlock) between the charging connector 410 and the inlet 220 .
- the inlet 220 and the cable lock switch 10 are normally covered with a charging lid 2 . Once the charging lid 2 is opened, a user can connect the charging connector 410 of the charging cable 400 to the inlet 220 and operate the cable lock switch 10 .
- an antenna 20 for performing communication between the ECU 300 and an electronic key 30 that can be carried around by a user 31 .
- the ECU 300 is capable of performing communication with the electronic key 30 by using the antenna 20 .
- the electronic key 30 is not present in the collation range, no communication can be performed between the ECU 300 and the electronic key 30 .
- the ECU 300 performs, based on information received by the antenna 20 , processing (hereinafter, also referred to as “collation processing”) for determining whether or not the collation condition that the electronic key 30 present in the collation range is a regular user's is satisfied.
- the ECU 300 determines “collatable” when the collation condition is satisfied and determines “uncountable” when the collation condition is not satisfied.
- FIG 2 is a diagram illustrating the structure of the charging cable 400 , the inlet 220 , and tire vicinity thereof.
- the vehicle 1 is also provided with a cable lock mechanism 50 and a pressing force detection sensor 24 .
- the cable lock mechanism 50 is disposed above the inlet 220 (near the inlet 220 ).
- the cable lock mechanism 50 is configured to switch between a lock state where removal of the charging cable 400 from the inlet 220 is restricted and an unlock state where removal of the charging cable 400 from the inlet 220 is allowed.
- the cable lock mechanism 50 is provided with a lock bar 52 sliding upward and downward and an electromagnetic actuator 51 causing the lock bar 52 to slide.
- the pressing force detection sensor 24 is disposed in the lower end portion of the lock bar 52 .
- the charging cable 400 is provided with the charging connector 410 , a plug 420 , and an alternating current electric power line 440 .
- the connecting portion 413 is disposed at the tip of the charging connector 410 and connected to the inlet 220 in an electrically conductible manner.
- the charging connector 410 has a link 411 .
- the link 411 is attached rotatable around a shaft 412 .
- a projecting portion engaged with a projection 221 of the inlet 220 is disposed at a first end of the link 411 , and a push button 415 is disposed at a second end of the link 411 .
- the link 411 is elastically biased with respect to the body of the charging connector 410 by a spring 414 (refer to FIGS. 3 and 4 ).
- the charging connector 410 is provided with a detection circuit (not illustrated) for detecting connection of the charging cable 400 .
- a connection signal (proximity detection signal) PISW that indicates the state where the charging cable 400 is electrically connected is transmitted to the ECU 300 via the inlet 220 .
- the ECU 300 determines that the charging connector 410 and the inlet 220 remain electrically connected to each other.
- the plug 420 is configured to be connectable to the external electric power supply device 500 .
- the alternating current electric power line 440 connects the charging connector 410 and the plug 420 to each other.
- FIGS. 3 and 4 are sectional views taken along line III-III of FIG. 2 .
- FIG. 3 is a sectional view of the inlet 220 and the charging connector 410 in the lock state of the cable lock mechanism 50 .
- FIG. 4 is a sectional view of the inlet 220 and the charging connector 410 in the unlock state of the cable lock mechanism 50 .
- a mechanism for engagement and fixing between the charging connector 410 and the inlet 220 will be described below with reference to FIGS. 3 and 4 .
- the lock bar 52 slides downward and is fixed at a position in contact with the upper surface of the link 411 .
- rotation of the link 411 is suppressed by the lock bar 52 even when the push button 415 is pushed, and the projecting portion of the link 411 does not rise and is not released from the projection 221 of the inlet 220 .
- the charging connector 410 cannot be removed from the inlet 220 even when a user pushes the push button 415 .
- the pressing force detection sensor 24 is moved with the lower end portion of the lock bar 52 to a position where disengagement of the projecting portion of the link 411 is blocked. In this case, the pressing force detection sensor 24 abuts and is pressed against the upper surface side of the link 411 .
- a pressing force applied to the pressing force detection sensor 24 is converted into an electric signal and the electric signal is sent to the ECU 300 .
- the ECU 300 determines that the lock state is in progress when the pressing force applied to the pressing force detection sensor 24 is equal to or greater than a predetermined value.
- the ECU 300 determines that the unlock state is in progress when the pressing force applied to the pressing force detection sensor 24 is less than the predetermined value.
- the lock bar 52 slides upward and is fixed at a position where rotation of the link 411 is not suppressed.
- rotation of the link 411 is not suppressed by the lock bar 52 , and thus the link 411 rotates around the shaft 412 and the projecting portion disposed in the opposite end portion rises once the push button 415 is pushed.
- the projecting portion of the link 411 is released from the projection 221 of the inlet 220 and the charging connector 410 can be removed from the inlet 220 .
- the charging cable 400 can be removed from the inlet 220 by a user pushing the push button 415 .
- the ECU 300 performs the collation processing described above and controls the cable lock mechanism 50 in accordance with the result of the collation processing. More specifically, in a case where “collatable” is determined by the collation processing, since the ECU 300 estimates that the regular user 31 operated the cable lock switch 10 in the collation range illustrated in FIG. 1 , and the ECU 300 accepts the operation of the cable lock switch 10 . In a case where the operation of the cable lock switch 10 is accepted, the ECU 300 outputs a lock command to the actuator 51 when the state of the cable lock mechanism 50 is the unlock state and outputs an unlock command to the actuator 51 when the state of the cable lock mechanism 50 is the lock state.
- the ECU 300 estimates that someone other than the regular user 31 operated the cable lock switch 10 and does not accept the operation of the cable lock switch 10 .
- the vehicle 1 configured as described above is externally charged with a current with a predetermined value or more (hereinafter; also referred to as a “large current”) flowing so that the external charging is completed early.
- a current with a predetermined value or more hereinafter; also referred to as a “large current”
- the engagement state of the charging connector 410 and the inlet 220 may be released due to third-party mischief or the like.
- the charging connector 410 is removed from the inlet 220 in a state where the large current flows (hereinafter, also referred to as “removal with the large current”) once external charging is allowed in a case where the cable lock mechanism 50 is in the unlock state.
- the area of contact between the charging connector 410 and the inlet 220 may be reduced during removal of the charging connector 410 from the inlet 220 , and this may result in a phenomenon in which the large current locally flows and air, allowable temperature is exceeded.
- the ECU 300 allows external charging with the large current in a case where the cable lock mechanism 50 is in the lock state. In a case where the cable lock mechanism 50 is in the unlock state, the ECU 300 allows external charging with a current with a value less than the predetermined value (hereinafter, also referred to as a “small current”) without prohibiting external charging.
- a current with a value less than the predetermined value hereinafter, also referred to as a “small current”
- FIG. 5 is a flowchart with which the ECU 300 determines the availability of charging from the external electric power supply device 500 to the electric power storage device 100 . This flowchart is repeatedly executed at a predetermined cycle when the charging lid 2 is opened.
- Step 10 the ECU 300 determines whether the charging connector 410 and the inlet 220 are engaged with each other. In a case where the ECU 300 determines that the charging connector 410 and the inlet 220 are not engaged with each other (NO in S 10 ), the ECU 300 prohibits charging of the electric power storage device 100 ( 550 ). As a result, in a case where the charging connector 410 and the inlet 220 are not in the engagement state, charging is prohibited and the removal with the large current is reliably suppressed.
- the ECU 300 determines the state of the cable lock mechanism 50 (S 20 ). Specifically, the ECU 300 determines whether the cable lock mechanism 50 is in the lock state or the unlock state by using information from the pressing force detection sensor 24 disposed in the lower end portion of the lock bar 52 , in a case where the ECU 300 determines that the cable lock mechanism 50 is in the lock state (YES in S 20 ), the ECU 300 selects a first mode (S 30 ). Charging of the electric power storage device 100 with the large current is allowed in the first mode.
- the large current is a charging current that is used in a case where charging of the electric power storage device 100 is performed from the external electric power supply device 500 and a current with a predetermined value or more at which the removal with the large current can occur when the charging connector 410 is removed from the inlet 220 during external charging.
- the large current is a current of 16 amperes or more.
- the large current can be regarded as the “first current value” according to the present disclosure.
- the ECU 300 determines that the cable lock mechanism 50 is in the unlock state (NO in S 20 )
- the ECU 300 selects a second mode (S 40 ). Charging of the electric power storage device 100 with the small current less than the large current is allowed in the second mode.
- the small current is a charging current that is used in a case where charging of the electric power storage device 100 is performed from the external electric power supply device 500 and a current with a value less than the predetermined value at which the removal with the large current cannot occur when the charging connector 410 is removed from the inlet 220 during external charging.
- the small current has a current value of less than 16 amperes.
- the small current can be regarded as the “second current value” according to the present disclosure.
- the ECU 300 terminates the processing after determining the availability of charging from the external electric power supply device 500 to the electric power storage device 100 or the charge mode selection
- the ECU 300 first determines the engagement state of the charging connector 410 and the inlet 220 . In a case where the charging connector 410 and the inlet 220 are not in the engagement state, the ECU 300 prohibits charging from the external electric power supply device 500 to the electric power storage device 100 As a result, the removal with the large current can be reliably suppressed.
- the ECU 300 determines the state of the cable lock mechanism 50 .
- the ECU 300 allows external charging with the large current when the cable lock mechanism 50 is in the lock state.
- the ECU 300 performs external charging with the small current when the cable lock mechanism 50 is in the unlock state. Therefore, the electric power storage device 100 is charged even in a case where a user forgets about operation for putting the cable lock mechanism 50 into the lock state or a case where the lock state is not achieved due to malfunction of the cable lock mechanism 50 or the like. Accordingly, external charging can be executed, with the removal with the large current suppressed, in the unlock state of the cable lock mechanism 50 .
- the ECU 300 determines the state of the cable lock mechanism 50 by using a signal from the pressing force detection sensor 24 disposed in the lower end portion of the lock bar 52 .
- the use of the signal from the pressing force detection sensor 24 is optional insofar as the cable lock mechanism 50 is capable of determining whether the cable lock mechanism 50 is in the lock state or the unlock state.
- a press switch may be used instead of the pressing force detection sensor 24 .
- the use of the pressing force detection sensor is optional.
- whether the cable lock mechanism 50 is in the lock state or the unlock state is determined from the operation position of the lock bar 52 operated by the actuator 51 in accordance with a state switching command that the ECU 300 issues to the cable lock mechanism 50 .
- the ECU 300 determines that the cable lock mechanism 50 is in the lock state when the lock bar 52 is at a position defined as the lock state and determines that the cable lock mechanism 50 is in the unlock state when the lock bar 52 is at a position defined as the unlock state.
- the charging connector 410 has the link 411 and, once the barging connector 410 is inserted into the inlet 220 , the projecting portion of the link 411 is engaged with the projection 221 of the inlet 220 .
- Vehicles on which external charging is performed include, those that are not provided with a mechanism for engagement between the charging connector 410 and the inlet 220 as described above. The present disclosure is also applicable to such vehicles, which will be described below.
- a second modification example is basically identical to the embodiment except the configuration of the inlet 220 and the charging connector 410 . Accordingly, description of configuration will not be repeated with the exception of the configuration of an inlet 220 A and a charging connector 410 A.
- FIG. 6 is a sectional view of the inlet 220 A and the charging connector 410 A in the lock state of the cable lock mechanism 50 .
- the inlet 220 A has a configuration in which the configuration of the projection 221 is excluded from the configuration of the inlet 220 .
- the charging connector 410 A has a configuration in winch the configuration of the link 411 and the push button 415 is excluded from the configuration of the charging connector 410 with the configuration of a lock portion 455 added.
- the lock portion 455 is disposed with a connecting portion 413 A at a tip of the charging connector 410 A.
- the lock portion 455 is formed in a substantially hollow cylindrical shape outside the outer peripheral surface of the connecting portion 413 A.
- a hole 456 is formed in the upper side of the connecting portion 413 A so that the lock bar 52 sliding downward is locked by being inserted.
- Whether the cable lock mechanism 50 is in the lock state or the unlock state is determined from the operation position of the lock bar 52 operated by the actuator 51 in accordance with a state switching command that the ECU 300 issues to the cable lock mechanism 50 .
- the ECU 300 determines whether or not the charging connector 410 A is connected to the inlet 220 A.
- the lock portion 455 is inserted into the inlet 220 A with the connecting portion 413 A and the hole 456 formed in the lock portion 455 is positioned below the lock bar 52 .
- FIG. 7 is a sectional view of the inlet 220 A and the charging connector 410 A in the unlock state of the cable lock mechanism 50 .
- the lock bar 52 slides upward and is fixed in a state where the lock bar 52 is not inserted into the hole 456 in the unlock state of the cable lock mechanism 50 .
- the charging connector 410 A can be removed from the inlet 220 A in this state.
- the present disclosure may be applied to a vehicle configured as described above with the ECU 300 controlling the charging current of external charging by determining the state of connection between the charging connector 410 .A and the inlet 220 A and the state of the cable lock mechanism 50 .
- the cable lock mechanism 50 and the lock portion 455 may be disposed below, for example, the inlet 220 A insofar as the charging connector 410 A and the inlet 220 A can he put into a lock state by the cable lock mechanism 50 and the lock portion 455 .
- switching between the lock state and the unlock state of the cable lock mechanism 50 is performed in accordance with user operation on the cable lock switch 10 .
- This is optional insofar as the switching between the lock state and the unlock state is possible.
- switching to the lock state may be automatically performed in a case where the ECU 300 determines that the charging connector 410 ( 410 A) and the inlet 220 ( 220 A) remain electrically connected to each other.
- Switching to the unlock state may be performed after the elapse of a predetermined period, upon external charging completion, and so on,
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Abstract
Description
- This application claims priority to Japanese Patent Application No. 2017-164720 filed on Aug. 29, 2017, which is incorporated herein by reference in its entirety including the specification, drawings and abstract.
- The present disclosure relates to a vehicle on which external charging is performed, the external charging being charging of an electric power storage device with electric power supplied by a charging cable.
- A vehicle that is externally charged is disclosed in Japanese Unexamined Patent. Application Publication No. 2015-72855 UP 2015-72855 A). In the vehicle, a charging connector of a charging cable and an inlet are engaged with each other by a lock pin for preventing removal of the charging connector from the inlet. The vehicle allows external charging when the charging connector and the inlet are engaged with each other by the lock pin and prohibits external charging when the charging connector and the inlet are not engaged with each other by the lock pin. As a result, removal of the charging connector from the inlet during external charging is prevented.
- Vehicles on which external charging is performed include those provided with a cable lock mechanism so that the state where the charging connector and the inlet are engaged with each other (hereinafter, referred to as an “engagement state”) is not released for third-party mischief or the like. The cable lock mechanism is configured to switch between a lock state where removal of the charging connector from the inlet is restricted and an unlock state where removal of the charging connector from the inlet is allowed.
- In a vehicle provided with the cable lock mechanism, it is assumed that the charging connector is removed from the inlet in a state where a current with a predetermined value or more (hereinafter, also referred to as a “large current”) flows (hereinafter, also referred to as “removal with the large current”) once external charging is allowed in a case where the cable lock mechanism is in the unlock state. In this case, the area of contact between the charging connector and the inlet may be reduced during removal of the charging connector from the inlet, and this may result in a phenomenon in which the large current locally flows and an allowable temperature is exceeded.
- Once external charging is prohibited in a case where the cable lock mechanism is in the unlock state, user convenience may be impaired although the removal with the large current can be prevented. Specifically, for example, no external charging is executed, against a user's will and despite the engagement state of the charging connector and the inlet, in a case where the user forgets about operation for putting the cable lock mechanism into the lock state or in a case where the lock state is not achieved due to malfunction of the cable lock mechanism or the like.
- The present disclosure provides a vehicle that can be externally charged, with the removal with the large current suppressed, in a case where the cable lock mechanism is in the unlock state.
- An aspect of the present disclosure relates to a vehicle in which an electric power storage device is mounted and which is configured to execute external charging for charging the electric power storage device with electric power supplied by a charging cable. The vehicle includes an inlet, a cable lock mechanism, and a control device. The inlet is configured to be connected to a charging connector disposed at a tip of the charging cable. The cable lock mechanism is disposed near the inlet and is configured to switch between a lock state where removal of the charging connector from the inlet is restricted and an unlock state where removal of the charging connector from the inlet is allowed. The control device is configured to select a first mode in which the electric power storage device is allowed to be charged at a first current value in a case where the cable lock mechanism is in the lock state with the charging connector and the inlet connected to each other, and select a second mode in which the electric power storage device is allowed to be charged at a second current value less than the first current value in a case where the cable lock mechanism is in the unlock state with the chanting connector and the inlet connected to each other.
- According to the aspect of the present disclosure, charging of the electric power storage device is allowed even when the cable lock mechanism is in the unlock state. The charging is allowed at the second current value (current value equal to or less than a predetermined value: small current), which is less than the first current value (current value equal to or greater than the predetermined value: large current) allowed in a case where the cable lock mechanism is in the lock state. Therefore, charging of the electric power storage device is allowed, at the second current value, even in a case where the cable lock mechanism is in the unlock state and removal with the large current can be suppressed even in, a case where the charging connector is removed from the inlet.
- In the vehicle according to the aspect of the present disclosure, the inlet may be configured to be engaged with the charging connector. The control device may be configured to select the first mode in a case where the cable lock mechanism is in the lock state with the charging connector and the inlet engaged with each other. The control device may be configured to select the second mode in a case where the cable lock mechanism is in the unlock state with the charging connector and the inlet engaged with each other.
- According to the aspect of the present disclosure, the first mode and the second mode are selected in accordance with the states of the cable lock mechanism on the premise that the charging, connector and the inlet are engaged with each other. The charging connector and the inlet remain engaged with each other even in a case where the cable lock mechanism is in the unlock state. Accordingly, the charging connector is unlikely to be removed from the inlet, even in a case where external charging is performed with the cable lock mechanism in the unlock state, with the exception of a case where, for example, the engagement state is intentionally released. Therefore, removal of the charging, connector from the inlet during external charging with the small current can also be suppressed.
- In the vehicle according to the aspect of the present disclosure, the first current value may be a current value greater than 16 amperes and tie second current value may be a current value less than 16 amperes.
- According to the aspect of the present disclosure, flowing of a current greater than 16 amperes can be suppressed in the unlock state. Accordingly, removal with the large current does not occur even in a case where the charging connector is removed from the inlet during external charging.
- In the vehicle according to the aspect of the present disclosure, the control device may be configured to execute the charging of the electric power storage device based on a selected charge mode.
- According to the aspect of the present disclosure, external charging can be executed, with removal with the large current suppressed, in the unlock state of the cable lock mechanism.
- Features, advantages, and technical and industrial significance of exemplary embodiments of the present disclosure will be described below with reference to the accompanying drawings, in which like numerals denote like elements, and wherein:
-
FIG. 1 is an overall block diagram of a vehicle; -
FIG. 2 is a diagram illustrating the structure of a charging cable, an inlet, and the vicinity thereof; -
FIG. 3 is a sectional view of the inlet and a charging connector in a lock state of a cable lock mechanism; -
FIG. 4 is a sectional view of the inlet and the charging connector in an unlock state of the cable lock mechanism; -
FIG. 5 is a flowchart with which an ECU determines the availability of charging from an external electric power supply device to an electric power storage device; -
FIG. 6 is another sectional view of the inlet and the charging connector in the lock state of the cable lock mechanism; and -
FIG. 7 is another sectional view of the inlet and the charging connector in the unlock state of the cable lock mechanism. - Hereinafter, the present embodiment will be described in detail with reference to accompanying drawings. In the drawings, the same reference numerals will be used to refer to the same or corresponding parts so that the same description is not repeated.
-
FIG. 1 is an overall block diagram of avehicle 1 according to the present embodiment. Thevehicle 1 travels by driving a traveling motor (not illustrated) by using electric power stored in an electricpower storage device 100. - The
vehicle 1 is provided with the electricpower storage device 100 storing the direct current electric power for driving the traveling motor and an electronic control unit (ECU) 300 performing vehicle control. The ECU 300 is a computer including, for example, an internal central processing unit (CPU) and an internal memory. - The
vehicle 1 is configured such that the electricpower storage device 100 can be charged with electric power (hereinafter, also referred to as “external electric power”) supplied via acharging cable 400 from an electric power supply device (hereinafter, also referred to as an “external electric power supply device”) 500 disposed outside thevehicle 1. In the present embodiment, a case will be described where the external electric power is alternating current electric power. - Specifically, the
vehicle 1 is provided with aninlet 220 configured to be connectable to a connectingportion 413 disposed at a tip of acharging connector 410 of thecharging cable 400 and formed in a substantially cylindrical shape and acharger 200 disposed between theinlet 220 and the electricpower storage device 100. In the present embodiment, theinlet 220 is disposed in the rear side surface of the vehicle body. Thecharger 200 outputs the external electric power (alternating current electric power) received by theinlet 220 to the electricpower storage device 100 after converting the external electric power into electric power (direct current electric power) with which the electricpower storage device 100 can be charged. - A
cable lock switch 10 is disposed near (at a position adjacent to) theinlet 220. The cable lock switch 10 outputs, to theECU 300 and in response to user operation, a request for switching between fixing (lock) and unfixing (unlock) between thecharging connector 410 and theinlet 220. - The
inlet 220 and thecable lock switch 10 are normally covered with acharging lid 2. Once thecharging lid 2 is opened, a user can connect thecharging connector 410 of thecharging cable 400 to theinlet 220 and operate thecable lock switch 10. - Also disposed near the
inlet 220 is anantenna 20 for performing communication between theECU 300 and an electronic key 30 that can be carried around by auser 31. In a case where theelectronic key 30 is present in the communication coverage (hereinafter, referred to as the “collation range”, refer toFIG. 1 ) of theantenna 20, theECU 300 is capable of performing communication with theelectronic key 30 by using theantenna 20. In a case where theelectronic key 30 is not present in the collation range, no communication can be performed between theECU 300 and theelectronic key 30. - The
ECU 300 performs, based on information received by theantenna 20, processing (hereinafter, also referred to as “collation processing”) for determining whether or not the collation condition that the electronic key 30 present in the collation range is a regular user's is satisfied. TheECU 300 determines “collatable” when the collation condition is satisfied and determines “uncountable” when the collation condition is not satisfied. -
FIG 2 is a diagram illustrating the structure of the chargingcable 400, theinlet 220, and tire vicinity thereof. Thevehicle 1 is also provided with acable lock mechanism 50 and a pressingforce detection sensor 24. - The
cable lock mechanism 50 is disposed above the inlet 220 (near the inlet 220). Thecable lock mechanism 50 is configured to switch between a lock state where removal of the chargingcable 400 from theinlet 220 is restricted and an unlock state where removal of the chargingcable 400 from theinlet 220 is allowed. - Specifically, the
cable lock mechanism 50 is provided with alock bar 52 sliding upward and downward and anelectromagnetic actuator 51 causing thelock bar 52 to slide. The pressingforce detection sensor 24 is disposed in the lower end portion of thelock bar 52. - The charging
cable 400 is provided with the chargingconnector 410, aplug 420, and an alternating currentelectric power line 440. The connectingportion 413 is disposed at the tip of the chargingconnector 410 and connected to theinlet 220 in an electrically conductible manner. The chargingconnector 410 has alink 411. Thelink 411 is attached rotatable around ashaft 412. A projecting portion engaged with aprojection 221 of theinlet 220 is disposed at a first end of thelink 411, and apush button 415 is disposed at a second end of thelink 411. Thelink 411 is elastically biased with respect to the body of the chargingconnector 410 by a spring 414 (refer toFIGS. 3 and 4 ). The chargingconnector 410 is provided with a detection circuit (not illustrated) for detecting connection of the chargingcable 400. Once the chargingconnector 410 and theinlet 220 are electrically connected to each other, a connection signal (proximity detection signal) PISW that indicates the state where the chargingcable 400 is electrically connected is transmitted to theECU 300 via theinlet 220. Upon receiving the PISW, theECU 300 determines that the chargingconnector 410 and theinlet 220 remain electrically connected to each other. - The
plug 420 is configured to be connectable to the external electricpower supply device 500. The alternating currentelectric power line 440 connects the chargingconnector 410 and theplug 420 to each other. -
FIGS. 3 and 4 are sectional views taken along line III-III ofFIG. 2 .FIG. 3 is a sectional view of theinlet 220 and the chargingconnector 410 in the lock state of thecable lock mechanism 50.FIG. 4 is a sectional view of theinlet 220 and the chargingconnector 410 in the unlock state of thecable lock mechanism 50. A mechanism for engagement and fixing between the chargingconnector 410 and theinlet 220 will be described below with reference toFIGS. 3 and 4 . - In
FIG. 3 , once the chargingconnector 410 is inserted into theinlet 220, the chargingconnector 410 and theinlet 220 are electrically connected to each other and the projecting portion of thelink 411 is engaged with theprojection 221 of the inlet 220 (hereinafter, also referred to as an “engagement state”). Accordingly, the chargingconnector 410 is not released from theinlet 220 in this state. - In the lock state of the
cable lock mechanism 50, thelock bar 52 slides downward and is fixed at a position in contact with the upper surface of thelink 411. As a result, rotation of thelink 411 is suppressed by thelock bar 52 even when thepush button 415 is pushed, and the projecting portion of thelink 411 does not rise and is not released from theprojection 221 of theinlet 220. In other words, in this state, the chargingconnector 410 cannot be removed from theinlet 220 even when a user pushes thepush button 415. - Once the lock state results from engagement between the charging
connector 410 and theinlet 220, the pressingforce detection sensor 24 is moved with the lower end portion of thelock bar 52 to a position where disengagement of the projecting portion of thelink 411 is blocked. In this case, the pressingforce detection sensor 24 abuts and is pressed against the upper surface side of thelink 411. A pressing force applied to the pressingforce detection sensor 24 is converted into an electric signal and the electric signal is sent to theECU 300. TheECU 300 determines that the lock state is in progress when the pressing force applied to the pressingforce detection sensor 24 is equal to or greater than a predetermined value. TheECU 300 determines that the unlock state is in progress when the pressing force applied to the pressingforce detection sensor 24 is less than the predetermined value. - In the unlock state illustrated in
FIG. 4 , thelock bar 52 slides upward and is fixed at a position where rotation of thelink 411 is not suppressed. As a result, rotation of thelink 411 is not suppressed by thelock bar 52, and thus thelink 411 rotates around theshaft 412 and the projecting portion disposed in the opposite end portion rises once thepush button 415 is pushed. As a result, the projecting portion of thelink 411 is released from theprojection 221 of theinlet 220 and the chargingconnector 410 can be removed from theinlet 220. In other words, in this state, the chargingcable 400 can be removed from theinlet 220 by a user pushing thepush button 415. - In a case where operation of the
cable lock switch 10 is detected, theECU 300 performs the collation processing described above and controls thecable lock mechanism 50 in accordance with the result of the collation processing. More specifically, in a case where “collatable” is determined by the collation processing, since theECU 300 estimates that theregular user 31 operated thecable lock switch 10 in the collation range illustrated inFIG. 1 , and theECU 300 accepts the operation of thecable lock switch 10. In a case where the operation of thecable lock switch 10 is accepted, theECU 300 outputs a lock command to theactuator 51 when the state of thecable lock mechanism 50 is the unlock state and outputs an unlock command to theactuator 51 when the state of thecable lock mechanism 50 is the lock state. - In a case where “uncollatable” is determined by the collation processing, the
ECU 300 estimates that someone other than theregular user 31 operated thecable lock switch 10 and does not accept the operation of thecable lock switch 10. - It is assumed that the
vehicle 1 configured as described above is externally charged with a current with a predetermined value or more (hereinafter; also referred to as a “large current”) flowing so that the external charging is completed early. In a case where thecable lock mechanism 50 is in the unlock state, however, the engagement state of the chargingconnector 410 and theinlet 220 may be released due to third-party mischief or the like. Accordingly, it is assumed that the chargingconnector 410 is removed from theinlet 220 in a state where the large current flows (hereinafter, also referred to as “removal with the large current”) once external charging is allowed in a case where thecable lock mechanism 50 is in the unlock state. In this case, the area of contact between the chargingconnector 410 and theinlet 220 may be reduced during removal of the chargingconnector 410 from theinlet 220, and this may result in a phenomenon in which the large current locally flows and air, allowable temperature is exceeded. - Once external charging is prohibited in a case where the
cable lock mechanism 50 is in the unlock state, user convenience may be impaired although the removal with the large current can be prevented. Specifically, for example, no external charging is executed, against a user's will and despite the engagement state of the chargingconnector 410 and theinlet 220, in a case where theuser 31 forgets about operation for putting thecable lock mechanism 50 into the lock state or in a case where the lock state is not achieved due to malfunction of thecable lock mechanism 50 or the like. - In the present embodiment, the
ECU 300 allows external charging with the large current in a case where thecable lock mechanism 50 is in the lock state. In a case where thecable lock mechanism 50 is in the unlock state, theECU 300 allows external charging with a current with a value less than the predetermined value (hereinafter, also referred to as a “small current”) without prohibiting external charging. - As a result, charging of the electric
power storage device 100 is still allowed, with the small current, even when thecable lock mechanism 50 is in the unlock state. By charging being performed with the small current, the removal with the large current described above does not occur even when the chargingconnector 410 is removed from theinlet 220. -
FIG. 5 is a flowchart with which theECU 300 determines the availability of charging from the external electricpower supply device 500 to the electricpower storage device 100. This flowchart is repeatedly executed at a predetermined cycle when the charginglid 2 is opened. - In Step (hereinafter, simply referred to as “S”) 10, the
ECU 300 determines whether the chargingconnector 410 and theinlet 220 are engaged with each other. In a case where theECU 300 determines that the chargingconnector 410 and theinlet 220 are not engaged with each other (NO in S10), theECU 300 prohibits charging of the electric power storage device 100 (550). As a result, in a case where the chargingconnector 410 and theinlet 220 are not in the engagement state, charging is prohibited and the removal with the large current is reliably suppressed. - In a case where the
ECU 300 determines that the chargingconnector 410 and theinlet 220 are in the engagement state (YES in S10), theECU 300 determines the state of the cable lock mechanism 50 (S20). Specifically, theECU 300 determines whether thecable lock mechanism 50 is in the lock state or the unlock state by using information from the pressingforce detection sensor 24 disposed in the lower end portion of thelock bar 52, in a case where theECU 300 determines that thecable lock mechanism 50 is in the lock state (YES in S20), theECU 300 selects a first mode (S30). Charging of the electricpower storage device 100 with the large current is allowed in the first mode. The large current is a charging current that is used in a case where charging of the electricpower storage device 100 is performed from the external electricpower supply device 500 and a current with a predetermined value or more at which the removal with the large current can occur when the chargingconnector 410 is removed from theinlet 220 during external charging. For example, the large current is a current of 16 amperes or more. The large current can be regarded as the “first current value” according to the present disclosure. - In a case where the
ECU 300 determines that thecable lock mechanism 50 is in the unlock state (NO in S20), theECU 300 selects a second mode (S40). Charging of the electricpower storage device 100 with the small current less than the large current is allowed in the second mode. The small current is a charging current that is used in a case where charging of the electricpower storage device 100 is performed from the external electricpower supply device 500 and a current with a value less than the predetermined value at which the removal with the large current cannot occur when the chargingconnector 410 is removed from theinlet 220 during external charging. For example, the small current has a current value of less than 16 amperes. The small current can be regarded as the “second current value” according to the present disclosure. - The
ECU 300 terminates the processing after determining the availability of charging from the external electricpower supply device 500 to the electricpower storage device 100 or the charge mode selection - As described above, in the present embodiment, the
ECU 300 first determines the engagement state of the chargingconnector 410 and theinlet 220. In a case where the chargingconnector 410 and theinlet 220 are not in the engagement state, theECU 300 prohibits charging from the external electricpower supply device 500 to the electricpower storage device 100 As a result, the removal with the large current can be reliably suppressed. - In a case where the
ECU 300 determines that the chargingconnector 410 and theinlet 220 are in the engagement state, theECU 300 determines the state of thecable lock mechanism 50. TheECU 300 allows external charging with the large current when thecable lock mechanism 50 is in the lock state. - The
ECU 300 performs external charging with the small current when thecable lock mechanism 50 is in the unlock state. Therefore, the electricpower storage device 100 is charged even in a case where a user forgets about operation for putting thecable lock mechanism 50 into the lock state or a case where the lock state is not achieved due to malfunction of thecable lock mechanism 50 or the like. Accordingly, external charging can be executed, with the removal with the large current suppressed, in the unlock state of thecable lock mechanism 50. - In the embodiment, the
ECU 300 determines the state of thecable lock mechanism 50 by using a signal from the pressingforce detection sensor 24 disposed in the lower end portion of thelock bar 52. However, the use of the signal from the pressingforce detection sensor 24 is optional insofar as thecable lock mechanism 50 is capable of determining whether thecable lock mechanism 50 is in the lock state or the unlock state. For example, a press switch may be used instead of the pressingforce detection sensor 24. - The use of the pressing force detection sensor is optional. For example, whether the
cable lock mechanism 50 is in the lock state or the unlock state is determined from the operation position of thelock bar 52 operated by theactuator 51 in accordance with a state switching command that theECU 300 issues to thecable lock mechanism 50. In this case, theECU 300 determines that thecable lock mechanism 50 is in the lock state when thelock bar 52 is at a position defined as the lock state and determines that thecable lock mechanism 50 is in the unlock state when thelock bar 52 is at a position defined as the unlock state. - In the embodiment, the charging
connector 410 has thelink 411 and, once the bargingconnector 410 is inserted into theinlet 220, the projecting portion of thelink 411 is engaged with theprojection 221 of theinlet 220. Vehicles on which external charging is performed include, those that are not provided with a mechanism for engagement between the chargingconnector 410 and theinlet 220 as described above. The present disclosure is also applicable to such vehicles, which will be described below. A second modification example is basically identical to the embodiment except the configuration of theinlet 220 and the chargingconnector 410. Accordingly, description of configuration will not be repeated with the exception of the configuration of aninlet 220A and a chargingconnector 410A. -
FIG. 6 is a sectional view of theinlet 220A and the chargingconnector 410A in the lock state of thecable lock mechanism 50. Theinlet 220A has a configuration in which the configuration of theprojection 221 is excluded from the configuration of theinlet 220. The chargingconnector 410A has a configuration in winch the configuration of thelink 411 and thepush button 415 is excluded from the configuration of the chargingconnector 410 with the configuration of alock portion 455 added. - In
FIG. 6 , thelock portion 455 is disposed with a connectingportion 413A at a tip of the chargingconnector 410A. Thelock portion 455 is formed in a substantially hollow cylindrical shape outside the outer peripheral surface of the connectingportion 413A. Ahole 456 is formed in the upper side of the connectingportion 413A so that thelock bar 52 sliding downward is locked by being inserted. - Whether the
cable lock mechanism 50 is in the lock state or the unlock state is determined from the operation position of thelock bar 52 operated by theactuator 51 in accordance with a state switching command that theECU 300 issues to thecable lock mechanism 50. - In
FIG. 6 once the chargingconnector 410A is inserted into theinlet 220A, theinlet 220 and the connectingportion 413A disposed at the tip of the chargingconnector 410A are connected to each other in an electrically conductible manner. In S10 of the flowchart that is illustrated inFIG. 5 , theECU 300 determines whether or not the chargingconnector 410A is connected to theinlet 220A. Thelock portion 455 is inserted into theinlet 220A with the connectingportion 413A and thehole 456 formed in thelock portion 455 is positioned below thelock bar 52. - In
FIG. 6 , thelock bar 52 slides downward and is fixed at a position where thelock bar 52 is inserted into thehole 456 in the lock state of thecable lock mechanism 50. As a result, the chargingconnector 410A cannot be removed from theinlet 220A in this state. -
FIG. 7 is a sectional view of theinlet 220A and the chargingconnector 410A in the unlock state of thecable lock mechanism 50. InFIG. 7 , thelock bar 52 slides upward and is fixed in a state where thelock bar 52 is not inserted into thehole 456 in the unlock state of thecable lock mechanism 50. As a result, the chargingconnector 410A can be removed from theinlet 220A in this state. - The present disclosure may be applied to a vehicle configured as described above with the
ECU 300 controlling the charging current of external charging by determining the state of connection between the charging connector 410.A and theinlet 220A and the state of thecable lock mechanism 50. - The
cable lock mechanism 50 and thelock portion 455 may be disposed below, for example, theinlet 220A insofar as the chargingconnector 410A and theinlet 220A can he put into a lock state by thecable lock mechanism 50 and thelock portion 455. - In the configuration of the embodiment and the second modification example, switching between the lock state and the unlock state of the
cable lock mechanism 50 is performed in accordance with user operation on thecable lock switch 10. This is optional insofar as the switching between the lock state and the unlock state is possible. For example, switching to the lock state may be automatically performed in a case where theECU 300 determines that the charging connector 410 (410A) and the inlet 220 (220A) remain electrically connected to each other. Switching to the unlock state may be performed after the elapse of a predetermined period, upon external charging completion, and so on, - It should be noted that the embodiment disclosed here is a non-restrictive example in all respects. The scope of the present disclosure is clarified by the scope of claims, not the description of the embodiment above, and includes every change within the meaning and scope equivalent to the claims.
Claims (4)
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JP2017164720A JP6819515B2 (en) | 2017-08-29 | 2017-08-29 | vehicle |
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Also Published As
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JP2019047544A (en) | 2019-03-22 |
CN113400967B (en) | 2023-06-06 |
CN109435726A (en) | 2019-03-08 |
CN113400967A (en) | 2021-09-17 |
US10232720B1 (en) | 2019-03-19 |
CN109435726B (en) | 2021-12-10 |
JP6819515B2 (en) | 2021-01-27 |
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