vehicle

Abstract

The present invention provides a vehicle capable of reducing the discomfort caused to a user in connection with the use of a power supply function unit when charging a battery from an external power source. The vehicle comprises: a battery that stores power for traveling; a power acquisition unit that acquires power for charging from the outside; a power supply function unit that can supply power from the battery to a device other than a traveling motor; a first relay that connects or disconnects the battery to a power line; a second relay that connects or disconnects the power acquisition unit to the power line; and a first notification processing unit that, in the event of a request to charge the battery, notifies the user that the power supply function unit will be temporarily stopped if the charging of the battery is started.

Description

Technical Field

[0001] The present invention relates to a vehicle including a battery for storing electric power for traveling and a power acquisition unit for acquiring electric power for charging the battery from the outside. Background Art

[0002] Vehicles such as EV (Electric Vehicle) and PHEV (Plug-in Hybrid Electric Vehicle) are equipped with large-capacity high-voltage batteries that store power for driving. High-voltage batteries are sometimes used as power sources for vehicle-mounted equipment such as air conditioners and navigation systems. In recent years, the convenience function of supplying AC power from sockets installed inside and outside the vehicle body has become practical, and high-voltage batteries can also be used as power sources for convenience functions.

[0003] Such a vehicle can charge the high voltage battery by receiving power from an external power source. There are two types of charging: non-contact charging, which receives power from a power transmission coil of ground equipment, and wired charging, which receives power through a charging port.

[0004] Generally, in a vehicle equipped with a high-voltage battery, the power line can be disconnected from the high-voltage battery via a system main relay so that the voltage of the high-voltage battery is not excessively output to the power line of the system. In addition, in a vehicle capable of charging the high-voltage battery from an external power source, the voltage acquisition unit can be disconnected from the power line via a charging relay so that the voltage of the high-voltage battery is not unnecessarily output to the power acquisition unit.

[0005] As a technology related to the present invention, Patent Document 1 discloses a technology for allowing a passenger to select whether to limit the output of a load using a touch screen when charging a battery of a vehicle.

[0006] Prior art literature

[0007] Patent Literature

[0008] Patent Document 1: Japanese Patent Application Laid-Open No. 2006-088865 Summary of the invention

[0009] Technical issues

[0010] In a vehicle with a high-voltage battery, the switching control of the relay is performed in a manner that prevents excessive current such as inrush current from flowing through the relay. For example, when the charging relay is switched to the connected state to start charging, the system main relay is temporarily switched to the disconnected state to disconnect the high-voltage battery from the power line, and then the charging relay is switched to the connected state. Then, the system main relay is switched to the connected state again. Since a protection mechanism that slowly changes the voltage between its two ends is attached to the system main relay, according to the above sequence, the high-voltage battery can be connected to the power acquisition unit via the power line without excessive current flowing through both the charging relay and the system main relay.

[0011] However, when the high voltage battery is charged while the electrical equipment connected to the in-vehicle equipment or the convenience function socket is operating, if the relay switching control is performed as described above, the power supply of the equipment may be temporarily cut off. The power cut is an unexpected situation for the user, and if the equipment in use stops, it will cause discomfort to the user.

[0012] An object of the present invention is to provide a vehicle capable of reducing the discomfort felt by a user in connection with the use of a power supply function unit when a battery is charged from an external power supply.

[0013] Technical Solution

[0014] The invention described in a first aspect provides a vehicle, characterized by comprising:

[0015] A battery that stores electricity for driving;

[0016] A power acquisition unit that acquires power for charging from the outside;

[0017] A power supply function unit capable of supplying power from the battery to devices other than the driving motor;

[0018] a first relay, which connects or disconnects the battery to a power line;

[0019] a second relay for connecting or disconnecting the power acquisition unit and the power line;

[0020] a charging control unit that switches the first relay to a disconnected state, sets the second relay to a connected state, and then switches the first relay to a connected state to start charging the battery when a request to charge the battery is received while the first relay is in a connected state; and

[0021] A first notification processing unit is configured to notify a user that the power supply function unit will be temporarily stopped if charging of the battery is started, when there is a request to charge the battery.

[0022] The invention described in the second aspect is characterized in that, according to the vehicle described in the first aspect,

[0023] The vehicle further comprises a determination unit for determining a usage status of the power supply function unit before charging the battery.

[0024] The first notification processing unit switches between execution and non-execution of notification based on a determination result of the determination unit.

[0025] The invention described in a third aspect is characterized in that, according to the vehicle described in the first aspect or the second aspect,

[0026] The first notification processing unit obtains information from the user whether the power supply function unit can be temporarily stopped.

[0027] The charging control unit switches between execution and non-execution of the charging process of the battery based on the information on whether or not the temporary stop is possible acquired by the first notification processing unit.

[0028] The invention according to a fourth aspect is characterized in that, according to the vehicle according to the third aspect,

[0029] The first notification processing unit transmits notification information to the mobile terminal when the information on whether or not the temporary suspension is permitted is not obtained.

[0030] The invention according to a fifth aspect is characterized in that, according to the vehicle described in any one of the first to fourth aspects,

[0031] The first notification processing unit outputs an image indicating switching of the power supply in parallel with the notification.

[0032] The invention according to a sixth aspect is characterized in that, according to the vehicle according to any one of the first to third aspects, the vehicle further comprises:

[0033] A charge transfer switch that sends a charge request in a manner operable by a user;

[0034] an output unit that outputs display and / or sound; and

[0035] a wireless communication unit capable of communicating with a portable terminal,

[0036] When a charging request is received from the charging transfer switch, the first notification processing unit performs notification via the output unit, and when a charging request is received from the portable terminal, the first notification processing unit performs notification via the portable terminal.

[0037] The invention according to a seventh aspect provides a vehicle, characterized in that it includes:

[0038] A battery that stores electricity for driving;

[0039] a power acquisition unit that acquires power for charging in a contactless manner via a power receiving coil;

[0040] A power supply function unit capable of supplying power from the battery to devices other than the driving motor;

[0041] a first relay, which connects or disconnects the battery to a power line;

[0042] a second relay that connects or disconnects the power acquisition unit and the power line; and

[0043] A second notification processing unit notifies a user that the power supply function unit will be temporarily stopped if charging of the battery is started, when the power receiving coil is in a position where it can receive power from the power transmitting coil of the ground equipment and there is an instruction to start the power supply function unit.

[0044] Technical Effects

[0045] According to the present invention, when there is a high possibility that the power supply function unit is temporarily stopped, the user is notified of this situation by the first notification processing unit or the second notification processing unit. Therefore, since the user can foresee the interruption of power supply in advance, even if the device in use stops, the discomfort caused to the user can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a block diagram showing a vehicle according to an embodiment of the present invention.

[0047] Figure 2 : is a flowchart showing the procedure of the non-contact charging transfer process executed by the charging control unit.

[0048] Figure 3 1 is a flowchart showing the procedure of the user docking process executed by the vehicle control unit.

[0049] Figure 4 This is a diagram showing an example of a screen of a power temporary stop notification output to the touch panel.

[0050] Explanation of symbols

[0051] 1 Vehicle

[0052] 11. Battery

[0053] 12 Inverter

[0054] 13 Travel motor

[0055] 15 Vehicle control unit (first notification processing unit, determination unit, second notification processing unit)

[0056] 21 Inverter for air conditioner

[0057] 23 Car Inverter

[0058] 25 Power supply function unit

[0059] 26 Contactless charging transfer switch

[0060] 28 AC power start switch

[0061] 31 Power receiving coil (power acquisition unit)

[0062] 32 Rectifier (power acquisition unit)

[0063] 34 Charging control unit

[0064] 41 Touch screen

[0065] 42 Wireless Communications Department

[0066] 51 Portable Terminal

[0067] 52 Touch screen

[0068] B1, B2 operation buttons

[0069] F1 Energy Flow Diagram

[0070] M1 message display

[0071] Lb power cord

[0072] Lc communication line

[0073] R1 System main relay (first relay)

[0074] R2 Charging relay (second relay)

[0075] PC pre-charge unit DETAILED DESCRIPTION

[0076] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Figure 1 It is a block diagram showing a vehicle according to an embodiment of the present invention.

[0077] The vehicle 1 according to the embodiment of the present invention is an EV or HEV (Hybrid Electric Vehicle), etc., and includes a battery 11 for storing power for traveling, a travel motor 13 for driving drive wheels, an inverter 12 for converting power between the battery 11 and the travel motor 13, and a BCU (Battery Control Unit) 14 for managing the state of the battery 11. The battery 11 outputs a high voltage for driving the travel motor 13, and may also be called a high-voltage battery. The battery 11 is a secondary battery such as a lithium-ion battery or a nickel-metal hydride battery.

[0078] The vehicle 1 also includes a system main relay R1, a pre-charge unit PC and a power line Lb. The battery 11 is connected to the power line Lb via the system main relay R1 and the pre-charge unit PC. The pre-charge unit PC has a function of slowly approaching the voltage between the two ends of the system main relay R1 when the system main relay R1 is in a cut-off state. When the battery 11 is connected to the power line Lb, first, the pre-charge unit PC is switched to a connected state, thereby reducing the potential difference between the two ends of the system main relay R1. Then, the system main relay R1 is switched to a connected state, and the pre-charge unit PC is switched to a cut-off state, thereby enabling the system main relay R1 to be switched from a cut-off state to a connected state without causing a large current to flow through the system main relay R1. Below, when explaining switching the system main relay R1 to a connected state, the above-mentioned switching action of the pre-charge unit PC is included. The system main relay R1 is equivalent to an example of the first relay of the present invention.

[0079] The vehicle 1 also includes a vehicle control unit 15 for controlling the driving and various parts. The vehicle control unit 15 is an ECU having a CPU (Central Processing Unit), a storage unit storing control programs and control data executed by the CPU, and a RAM (Random Access Memory) for CPU expansion data. The vehicle control unit 15 can be composed of one ECU (Electronic Control Unit) or a plurality of ECUs that operate in cooperation with each other. The vehicle control unit 15 is equivalent to an example of the first notification processing unit, the determination unit, and the second notification processing unit of the present invention.

[0080] The vehicle control unit 15 drives the inverter 12 according to the operation of the driving operation unit (pedals, shift levers, etc. not shown in the figure), so as to make the driving motor 13 run in power or regenerative operation. In this way, the vehicle 1 is driven in accordance with the driving operation. In addition, the vehicle control unit 15 performs the start-up control of the power supply function unit 25, the switching control of the system main relay R1 and the pre-charging unit PC, the display and operation input processing of the touch screen 41, and the communication processing with the portable terminal 51 via the wireless communication unit 42.

[0081] The vehicle 1 also includes a non-contact charging transfer switch 26 and an AC power supply start switch 28 provided on the instrument panel or the like. When the passenger of the vehicle 1 operates these switches, an operation signal (charging transfer instruction, vehicle inverter start instruction) is sent to the vehicle control unit 15. A touch screen 41 is provided on the instrument panel, and the vehicle control unit 15 can output images via the touch screen 41 and can receive operation signals from the touch screen 41. The non-contact charging transfer switch 26 is equivalent to an example of a charging transfer switch of the present invention. The touch screen 41 is equivalent to an example of an output unit of the present invention. The charging transfer instruction is equivalent to an example of a charging request of the present invention.

[0082] The vehicle 1 also includes a wireless communication unit 42. The vehicle control unit 15 can send specific information to a portable terminal 51 held by a user and can receive user operation information from the portable terminal 51 through communication via the wireless communication unit 42. The user can operate the touch screen 52 of the portable terminal 51 to select a display button displayed on the touch screen 52. In addition, the portable terminal 51 has a function of outputting an operation screen for transferring to contactless charging, and the user can send a charging transfer instruction to the vehicle control unit 15 by operating the operation screen. The communication of the wireless communication unit 42 can be a wireless LAN (Local Area Network), short-range wireless communication, or communication via a mobile phone base station.

[0083] The vehicle 1 has a power supply function unit 25 that uses the power of the battery 11 to supply power supply voltage to electrical equipment other than the driving motor 13. The power supply function unit 25 includes an air conditioning inverter 21, a vehicle-mounted inverter 23, and a heater switch (not shown). The air conditioning inverter 21 converts the power of the battery 11 and transmits a driving current to the air conditioner 22 (compressor, etc.). The vehicle-mounted inverter 23 converts the power of the battery 11 into an AC power supply voltage and outputs it to an in-vehicle socket (not shown). Passengers of the vehicle 1 can connect household appliances, for example, to the socket for use by driving the vehicle-mounted inverter 23. A PTC (Positive Temperature Coefficient) heater that heats the refrigerant for the air conditioner or the battery 11 is connected to the heater switch as a load, and power is supplied to the PTC heater by turning it on.

[0084] It should be noted that, in place of the in-vehicle socket or in addition to the in-vehicle socket, an out-vehicle socket or indoor socket that can use electrical appliances near the vehicle 1 (outside the vehicle compartment) can be connected to the in-vehicle inverter 23. Alternatively, the power supply function unit 25 can have an interface and a relay that can connect an external inverter instead of the in-vehicle inverter 23. Moreover, it can also be configured so that by connecting an external inverter to the interface and turning on the relay, power is supplied from the power line Lb to the inverter under the control of the vehicle control unit 15, and the AC power supply voltage is output from the external inverter to the out-vehicle socket. In addition, it can also be configured so that the AC power supply voltage is output from the external inverter to the home socket. The configuration of supplying AC power supply voltage from the vehicle 1 to the outside of the vehicle is V2L (Vehicle to Load), and the configuration of supplying AC power supply voltage from the vehicle 1 to the interior is V2H (Vehicle to Home). With such a configuration, the user of the vehicle 1 can use electrical appliances near the vehicle 1 or at home using the power supplied from the vehicle 1.

[0085] The vehicle 1 also includes a contactless charging mechanism 30 that obtains power from the ground equipment 100 in a contactless manner. The contactless charging mechanism 30 includes a power receiving coil 31, a rectifier 32, a communication unit 33 for wireless communication, a charging control unit 34, and a charging relay R2. The power receiving coil 31 can receive power from the power transmitting coil 103 of the ground equipment 100 through electromagnetic coupling or electromagnetic resonance when facing the power transmitting coil 103. The rectifier 32 rectifies the AC current output from the power receiving coil 31 and transmits it to the power line Lb side. The charging relay R2 switches the rectifier 32 and the power line Lb between a connected state and a disconnected state. The charging relay R2 is equivalent to an example of the second relay of the present invention. The power receiving coil 31 and the rectifier 32 represent an example of the power acquisition unit of the present invention.

[0086] The charging control unit 34 is one or more ECUs, and wirelessly communicates with the ground equipment 100 via the communication unit 33, receives voltage information from the rectifier 32, and controls non-contact charging. The control of non-contact charging includes switching control of the charging relay R2.

[0087] The charging control unit 34 communicates via the communication line Lc and cooperates with the vehicle control unit 15 and the BCU 14. It should be noted that since the vehicle control unit 15 cooperates with the charging control unit 34, the charging control unit 34 can also communicate with the vehicle control unit 15 and the BCU 14. Figure 1 The vehicle control unit 15 may also perform a portion of the processing of the vehicle control unit 15 shown in the example (such as switching control of the system main relay R1, input of operation signals of the contactless charging transfer switch 26 and the AC power supply start switch 28, control of the touch screen 41, and communication with the portable terminal 51 via the wireless communication unit 42). Figure 1 The vehicle control unit 15 and the charging control unit 34 may be integrated into a set of control units instead of being configured separately.

[0088] The ground equipment 100 includes a power transmission coil 103 for contactlessly transmitting electric power, an inverter 102 for converting electric power from an external power source and outputting the electric power to the power transmission coil 103, a communication unit 106 capable of communicating with the charging control unit 34 of the vehicle 1, and a ground equipment control unit 105 for driving and controlling the inverter 102. The charging control unit 34 of the vehicle 1 can send an excitation request for the power transmission coil 103 to the ground equipment control unit 105 via wireless communication using the communication units 33 and 106.

[0089] <Non-contact charging process>

[0090] Next, the non-contact charging transfer process performed by the charging control unit will be described. When the vehicle 1 is near the ground equipment 100, the non-contact charging transfer switch 26 or the portable terminal 51 is operated to send a non-contact charging transfer instruction to the charging control unit 34 to start the non-contact charging transfer process. Figure 2 : is a flowchart showing the procedure of the non-contact charging transfer process.

[0091] When the non-contact charging transfer process is started by sending a command, first, the charging control unit 34 requests the ground equipment 100 to perform excitation for position alignment via wireless communication performed by the communication unit 33 (step S21). This excitation is an excitation for aligning the power receiving coil 31 with the power transmitting coil 103, and has a strength much smaller than that of the excitation during charging. Next, the charging control unit 34 guides the driver to move the vehicle 1 or sends a command to the automatic driving function while monitoring the induced electromotive force generated in the rectifier 32, so that the power receiving coil 31 is aligned to a position opposite to the power transmitting coil 103 (step S22). Under the guidance of the charging control unit 34, if the vehicle 1 stops in a state where the power receiving coil 31 generates an induced electromotive force of a predetermined magnitude, the position alignment process of step S22 is completed. If the position alignment process is completed, the charging control unit 34 requests the ground equipment 100 to end the excitation via wireless communication performed by the communication unit 33 (step S23). As a result, the excitation for aligning the power transmitting coil 103 is stopped. When the positioning process is completed, the charging control unit 34 stores the completion information as history information.

[0092] The positioning process of step S22 is performed when the system main relay R1 is in the connected state and the charging relay R2 is in the disconnected state.

[0093] Next, in order to connect the battery 11 to the rectifier 32 via the power line Lb, the charging control unit 34 switches the system main relay R1 to the disconnected state (step S24), switches the charging relay R2 to the connected state (step S25), and switches the system main relay R1 to the connected state again (step S26). The switching of the system main relay R1 is achieved by sending a request from the charging control unit 34 to the vehicle control unit 15, so that the vehicle control unit 15 performs relay switching control. Through the relay switching procedure of steps S24 to S26, it is possible to avoid excessive current such as inrush current flowing through the charging relay R2 when switching the charging relay R2 to the connected state, and connect the battery 11 to the rectifier 32 via the power line Lb.

[0094] In steps S24 to S26, since the system main relay R1 is temporarily in the off state, if the power supply function unit 25 is used during the non-contact charging transfer process, the power supply function unit 25 and the battery 11 are temporarily disconnected, and the power supply by the power supply function unit 25 is interrupted.

[0095] When the switching control of the relays in steps S24 to S26 is completed, the charging control unit 34 requests the ground equipment 100 for excitation for charging via wireless communication performed by the communication unit 33 (step S27). According to the request of step S27, if strong excitation for charging is performed from the power transmission coil 103, a large induced electromotive force is generated in the power receiving coil 31 by the excitation, and a charging current is transmitted to the battery 11 via the rectifier 32. Then, the charging control unit 34 causes the process to enter the charging process, and performs charging of the battery 11 while monitoring the charging rate, etc. until the conditions for the end of charging are met.

[0096] <User connection processing>

[0097] Next, the user docking process for exchanging information between the vehicle control unit 15 and the user is described. During the operation of the system of the vehicle 1, the user docking process is continuously executed by the vehicle control unit 15. During the operation of the system of the vehicle 1, it refers to a standby state in which the vehicle 1 can travel, or an auxiliary on state in which an auxiliary power is being supplied. Figure 3 2 is a flowchart showing the procedure of the user docking process executed by the vehicle control unit 15 .

[0098] In the user docking process, the vehicle control unit 15 repeatedly executes the following loop process, which includes: judging whether there is a charge transfer instruction (step S1) and judging whether there is a start instruction from the AC power start switch 28 (step S10). Then, if the user of the vehicle 1 operates the non-contact charge transfer switch 26 or the portable terminal 51 to input the charge transfer instruction, the vehicle control unit 15 judges it through the judgment process of step S1 and transfers the process to step S2. In addition, if the user of the vehicle 1 operates the AC power start switch 28 to input the start instruction of the vehicle inverter 23, the vehicle control unit 15 judges it through the judgment process of step S10 and transfers the process to step S11.

[0099] If the process is transferred to step S2 according to the charge transfer instruction, the vehicle control unit 15 determines whether the power supply function unit 25 is in use (step S2). If the result is that it is not in use, the vehicle control unit 15 jumps to step S9 and sends a non-contact charge transfer instruction to the vehicle control unit 15 (step S9). Thus, the above-mentioned non-contact charge transfer process is started ( Figure 2 ).

[0100] On the other hand, if the result of step S2 is that the vehicle is in use, the vehicle control unit 15 determines whether the charge transfer instruction is an instruction sent from the portable terminal 51 (step S3). If it is "no", the touch screen 41 in the vehicle compartment performs a temporary power stop notification (step S4). Then, wait for the user's response to the temporary power stop notification (step S5). On the other hand, if the result of step S3 is "yes", or when the waiting time in step S5 is over, the vehicle control unit 15 outputs a temporary power stop notification from the portable terminal 51 via the communication of the wireless communication unit 42 (step S6), and waits for a response from the user (step S7).

[0101] Figure 4 1 is a diagram showing an example of a screen of a power temporary stop notification output to a touch screen. In the processing of the power temporary stop notification in step S4 or step S6, the vehicle control unit 15 sequentially switches and repeatedly outputs Figure 4 (A)~ Figure 4 The power temporary stop notification includes: a message display M1 notifying the user that the power of the vehicle socket is temporarily cut off when the non-contact charging starts, an energy flow diagram F1 that graphically represents the conversion of power when the non-contact charging starts, and operation buttons B1 and B2 that can select whether to allow the interruption of the power supply of the power supply function unit 25. The interruption of the power supply can also be called the cutting off of the power supply.

[0102] As described above, when contactless charging starts, the system main relay R1 is temporarily switched to the cut-off state, so when the power supply function unit 25 is in use, the power supply from the power supply function unit 25 is interrupted. The user can recognize this situation from the power supply temporary stop notification, and in the case of a malfunction caused by the power supply interruption, the user can respond to the intention of not allowing the interruption by selecting the operation buttons B1 and B2.

[0103] If there is a response during the waiting period of step S5 or step S7, the vehicle control unit 15 determines whether the response result is a selection to allow temporary suspension of power supply (step S8). Then, if the response result is permission, or the waiting time of step S7 is over, the vehicle control unit 15 sends a non-contact charging transfer instruction to the charging control unit 34 (step S9). Thus, the above-mentioned non-contact charging transfer process is started by the charging control unit 34 ( Figure 2 ). Then, the vehicle control unit 15 returns the process to the loop of steps S1 and S10 again.

[0104] On the other hand, if the determination result of step S8 is not permitted, the vehicle control unit 15 does not output the non-contact charge transfer instruction and returns the process to the loop of steps S1 and S10. Thus, the charging control unit 34 does not start the non-contact charge transfer process and the system main relay R1 is not temporarily disconnected.

[0105] If the process is transferred to step S11 according to the start-up instruction of the vehicle-mounted inverter 23, the vehicle control unit 15 first starts the vehicle-mounted inverter 23 (step S11). Then, the vehicle control unit 15 accesses the charging control unit 34 to determine whether the position alignment of the power receiving coil 31 for contactless charging is completed (step S12). In step S12, based on the historical information of the position alignment stored in the charging control unit 34 and the driving history information of the vehicle 1 stored in the vehicle control unit 15, the vehicle control unit 15 can determine whether the position alignment of the power receiving coil 31 is completed.

[0106] If the result of step S12 is that the alignment process has not yet been completed, the process is directly returned to the loop of steps S1 and S10. However, if the result of step S12 is that the alignment process has been completed, a temporary power stop notification is performed (step S13).

[0107] The power temporary stop notification in step S13 is, for example, Figure 4 In the power temporary stop notification shown, in addition to the output of the images of the operation buttons B1 and B2, the touch screen 41 or the portable terminal 51 is output. When the position alignment of the power receiving coil 31 is completed, there is a possibility that the vehicle 1 does not move and the switching control of the relay is performed to start the non-contact charging. In this case, the power supply from the vehicle inverter 23 started in step S11 will be interrupted. However, according to the power temporary stop notification of step S13, the user can foresee such interruption of power supply, and even if the non-contact charging is scheduled, it is possible to take appropriate countermeasures such as canceling the non-contact charging according to the electrical equipment used, or starting the non-contact charging before driving the electrical equipment.

[0108] When the power temporary notification in step S13 is performed, the vehicle control unit 15 returns the process to step S1 and repeats the loop process of steps S1 and S10.

[0109] As described above, according to the vehicle 1 of this embodiment, when there is a charge transfer instruction for the battery 11, the vehicle control unit 15 performs a power temporary stop notification, and notifies the user that the power supply function unit 25 is temporarily stopped due to the start of non-contact charging. Based on this notification, the user can foresee the interruption of power supply to the device being used, and even if the device is stopped due to the interruption of power supply, the user's discomfort can be reduced.

[0110] Furthermore, according to the vehicle 1 of the present embodiment, before performing contactless charging of the battery 11, the vehicle control unit 15 determines the usage status ( Figure 3 Step S2), according to the determination result, in the notification ( Figure 3 Thus, in the case where the user does not use the power supply function unit 25, etc., the temporary stop of the power supply function unit 25 does not cause discomfort to the user, and unnecessary notification can be omitted.

[0111] Furthermore, according to the vehicle 1 of the present embodiment, the user is prompted to select whether to allow the power interruption in the power supply temporary stop notification, and the vehicle control unit 15 determines whether to send a non-contact charging transfer instruction to the charging control unit 34 based on the result of the selection ( Figure 3 Then, according to the decision, the non-contact charging process (including the non-contact charging transfer process of switching the system main relay R1 and the charging relay R2) performed by the charging control unit 34 is switched between execution and non-execution. Thus, in a case where the interruption of power supply is not allowed, such as when a device is being used that would fail if the power supply is interrupted, the user can cancel the execution of the non-contact charging and continue to supply power to the device.

[0112] Furthermore, according to the vehicle 1 of the present embodiment, after the touch screen 41 in the vehicle compartment is notified of the temporary power stop, if there is no response whether to allow, the vehicle control unit 15 notifies the portable terminal 51 of the temporary power stop ( Figure 3 By such processing, the user's intention can be fully confirmed, and it is possible to prevent unnecessary notification from being sent to the portable terminal 51, thereby increasing the trouble for the user.

[0113] Furthermore, according to the vehicle 1 of the present embodiment, the power temporary stop notification includes the energy flow diagram F1 that graphically represents the conversion of power. This allows the user to intuitively recognize that the start of non-contact charging is associated with the interruption of power supply from the power supply function unit 25 .

[0114] Furthermore, according to the vehicle 1 of the present embodiment, the user can send a charge transfer instruction from the contactless charge transfer switch 26 and the portable terminal 51 in the vehicle compartment to the vehicle control unit 15. Furthermore, when an instruction is input from the contactless charge transfer switch 26, the vehicle control unit 15 notifies the touch screen 41 in the vehicle compartment of a temporary power stop, and when an instruction is input from the portable terminal 51, the vehicle control unit 15 notifies the portable terminal 51 of a temporary power stop. Thus, notifications can be made in accordance with the user's seat.

[0115] Furthermore, according to the vehicle 1 of the present embodiment, when there is a start command for the power supply function unit 25 in a state where the alignment of the power receiving coil 31 is completed, the vehicle control unit 15 notifies the user of information indicating that the power supply of the power supply function unit 25 will be interrupted if charging is started. When the alignment of the power receiving coil 31 is completed, there are cases where the non-contact charging is started by the user's subsequent operation, and there are cases where the non-contact charging is started without the user's operation. Therefore, by notifying when the power supply function unit 25 is started as described above, it is possible to prevent the power supply of the power supply function unit 25 from being interrupted unpredictably by the user when non-contact charging is started.

[0116] The above describes the embodiments of the present invention. However, the present invention is not limited to the above embodiments. For example, sometimes a vehicle includes a power function unit such as an air-conditioning inverter and a heater switch that allow interruption of the power supply, and a power function unit to which a device such as a vehicle-mounted inverter that does not allow interruption of the power supply may be connected. In the above embodiments, all air-conditioning inverters, vehicle-mounted inverters, and heater switches are regarded as power function units of the present invention, and the configuration of performing a temporary power stop notification related thereto is described. However, only a specific part of such a power function unit, for example, where a situation where interruption of the power supply is not allowed, may be regarded as the power function unit of the present invention. Moreover, a temporary power stop notification may be performed only for a specific part of the power function unit.

[0117] In addition, in the above-mentioned embodiment, as the power acquisition unit of the present invention, a configuration for contactlessly transmitting power is shown as an example. However, as the power acquisition unit of the present invention, a configuration for transmitting power from an external power source through a wired connection may also be adopted. For example, in a vehicle that charges a battery by acquiring a DC power supply voltage from the outside, as a power acquisition unit to which the DC power supply voltage is input, a configuration is adopted in which the power receiving coil and rectifier in the contactless charging mechanism are changed to a wired electric wire and the communication unit is changed to a wired method, and the other components are substantially the same as the contactless charging mechanism. Therefore, even in a vehicle that charges a battery from a DC power supply through a wired connection, the present invention can be applied according to the same configuration and control method as the embodiment.

[0118] In addition, in the above-mentioned embodiment, an example of notifying the temporary stop of the power function unit by display output of the touch screen 41 is shown, but the notification can also be performed by sound or both sound and display. In addition, the details shown in the embodiment can be appropriately changed within the scope of the invention.

Claims

1. A vehicle, characterized in that: have: A battery that stores electricity for driving; A power acquisition unit that acquires power for charging from the outside; a power supply function unit capable of supplying power from the battery to devices other than the travel motor; a first relay that connects or disconnects the battery from a power line; a second relay that connects or disconnects the power acquisition unit from the power line; a charging control unit that switches the first relay to a disconnected state, sets the second relay to a connected state, and then switches the first relay to a connected state to start charging the battery when a request to charge the battery is received while the first relay is in a connected state; as well as A first notification processing unit is configured to notify a user that the power supply function unit will be temporarily stopped if charging of the battery is started, when there is a request to charge the battery.

2. The vehicle according to claim 1, characterized in that The vehicle further includes a determination unit for determining a usage status of the power source function unit before charging the battery. The first notification processing unit switches between execution and non-execution of notification based on a determination result of the determination unit.

3. The vehicle according to claim 1, characterized in that The first notification processing unit obtains information from the user whether the power supply function unit can be temporarily stopped, The charging control unit switches between execution and non-execution of the charging process of the battery based on the information on whether the temporary stop is possible or not acquired by the first notification processing unit.

4. The vehicle according to claim 2, characterized in that The first notification processing unit obtains information from the user whether the power supply function unit can be temporarily stopped, The charging control unit switches between execution and non-execution of the charging process of the battery according to the information on whether the temporary stop is possible or not acquired by the first notification processing unit.

5. The vehicle according to claim 3 or 4, characterized in that: The first notification processing unit transmits notification information to the mobile terminal when the information on whether or not to temporarily stop is not obtained.

6. The vehicle according to any one of claims 1 to 4, characterized in that: The first notification processing unit outputs an image indicating switching of power supply in parallel with the notification.

7. The vehicle according to claim 5, characterized in that The first notification processing unit outputs an image indicating switching of power supply in parallel with the notification.

8. The vehicle according to any one of claims 1 to 4, characterized in that: The vehicle also has: A charge transfer switch that sends a charge request in a manner operable by a user; an output unit that outputs display and / or sound; and a wireless communication unit capable of communicating with a portable terminal, When a charge request is received from the charge transfer switch, the first notification processing unit performs notification via the output unit, and when a charge request is received from the portable terminal, the first notification processing unit performs notification via the portable terminal.

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