JP6394558B2 - vehicle - Google Patents

Description

  The present invention relates to a vehicle, and more particularly, to a vehicle capable of charging a power storage device mounted on the vehicle by a power source external to the vehicle.

  Japanese Patent Laying-Open No. 2013-186519 (Patent Document 1) discloses a vehicle including a power storage device. In this vehicle, the power storage device is charged by a power source external to the vehicle (hereinafter also referred to as “external charging”). In this vehicle, a message notifying the timing of completion of external charging is transmitted to the user's portable terminal. Thereby, even if the user has left the vehicle at the time of external charging, the user can return to the vehicle by the completion of external charging.

  Japanese Unexamined Patent Publication No. 2009-89473 (Patent Document 2) discloses a vehicle including an air conditioner. In this vehicle, control (hereinafter also referred to as “pre-air conditioning”) for operating the air conditioner before the user gets on is executed.

JP 2013-186519 A JP 2009-89473 A

  In the vehicle described in Patent Document 1, the user is notified of the completion of external charging, which is convenient. User convenience can be further improved by performing pre-air conditioning before the departure after completion of external charging. In pre-air conditioning after the completion of external charging and before departure, in order to maintain the state of charge of the power storage device (hereinafter also referred to as “SOC (State Of Charge)”), pre-air conditioning is performed while external charging is performed. It is conceivable that external charging is completed by the end of air conditioning. However, if the user is notified of the completion of charging even at the end of pre-air conditioning, the user may feel discomfort with respect to the plurality of charging completion notifications.

  The present invention has been made to solve such a problem, and an object thereof is to reduce a user's uncomfortable feeling with respect to a notification of completion of external charging in a vehicle capable of external charging.

  A vehicle according to an aspect of the present invention includes a power storage device, a charging device, a notification unit, an air conditioner, and a control device. The charging device is configured to perform external charging for receiving power from a power source outside the vehicle and charging the power storage device. The notifying means outputs a completion notice to the user when the external charging is completed. The air conditioner is configured to receive electric power from the power storage device and perform air conditioning of the passenger compartment. The control device executes pre-air conditioning that activates the air conditioning device before the user gets on. When the pre-air conditioning is performed while operating the charging device after the external charging is completed, the control device outputs a completion notification to the user by the notification means when the external charging is completed upon completion of the pre-air conditioning. Not executed.

  In this vehicle, the user is notified of the completion of charging only when the external charging is completed before the pre-air conditioning is performed, and the completion notification is not performed when the external charging is completed when the pre-air conditioning is completed. Therefore, according to this vehicle, the completion notification is not output a plurality of times, and the user's discomfort with respect to the completion notification can be reduced.

  According to the present invention, in a vehicle capable of external charging, it is possible to reduce the user's uncomfortable feeling with respect to the notification of completion of external charging.

1 is an overall block diagram of an electric vehicle according to Embodiment 1. FIG. 6 is a diagram for describing an example of transmission timing of an external charging completion notification in the first embodiment. FIG. 3 is a flowchart showing a processing procedure for external charging completion notification in the first embodiment. FIG. 11 is a diagram for describing an example of transmission timing of an external charging completion notification in the second embodiment. 12 is a flowchart showing a processing procedure for external charging completion notification in the second embodiment. FIG. 11 is a diagram for describing an example of transmission timing of an external charging completion notification in the third embodiment. 14 is a flowchart showing a processing procedure for external charging completion notification in the third embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals and description thereof will not be repeated.

[Embodiment 1]
(Configuration of electric vehicle)
1 is an overall block diagram of an electric vehicle shown as an example of a vehicle according to Embodiment 1 of the present invention. The electric vehicle is, for example, an electric vehicle or a hybrid vehicle.

  Referring to FIG. 1, an electric vehicle 100 includes an inlet 110, a power storage device 120, a charging device 130, a PCU (Power Control Unit) 140, an air conditioner 150, a DCM (Data Communication Module) 160, and an ECU (Electronic Control Unit). 170.

  A charging connector 210 of the charging cable 200 is connected to the inlet 110. Then, power from the external power source 300 is transmitted to the electric vehicle 100 through the charging connector 210 and the inlet 110.

  The power storage device 120 is a power storage element configured to be chargeable / dischargeable. The power storage device 120 includes, for example, a secondary battery such as a lithium ion battery, a nickel metal hydride battery, or a lead storage battery, and a power storage element such as an electric double layer capacitor.

  Charging device 130 is connected between inlet 110 and power storage device 120. Charging device 130 converts AC power supplied from external power supply 300 through inlet 110 into charging power for power storage device 120 and charges power storage device 120.

  PCU 140 includes an inverter, a motor connected to the inverter, and the like, and generates a traveling driving force of electric vehicle 100 using electric power supplied from power storage device 120.

  The air conditioner (A / C) 150 performs air conditioning (air conditioning) in the passenger compartment. The air conditioner 150 can decrease or increase the temperature in the passenger compartment.

  The DCM 160 is a communication device capable of wireless communication with the outside. The DCM 160 is, for example, a communication module compliant with a communication standard such as W-CDMA (Wideband Code Division Multiple Access), LTE (Long Term Evolution), or a wireless LAN standard such as IEEE (Institute of Electrical and Electronic Engineers) 802.11. including.

  ECU 170 incorporates a CPU (Central Processing Unit) and a memory (not shown), and each device (charging device 130, PCU 140, and so on) of electric vehicle 100 based on information stored in the memory and information from each sensor (not shown). The air conditioner 150 and DCM 160) are controlled. ECU 170 performs timer charging and pre-air conditioning as main functions. Next, timer charging and pre-air conditioning will be described.

  The timer charging is a function that automatically completes external charging of the power storage device 120 by the scheduled departure time preset by the user. For example, the user sets the next scheduled departure time through a navigation device (not shown). ECU 170 calculates the charging start time so that the external charging of power storage device 120 is completed by the scheduled departure time in consideration of the electricity bill for each time zone. When the calculated charging start time arrives, ECU 170 controls charging device 130 to start external charging of power storage device 120. Thereby, in electrically powered vehicle 100, external charging of power storage device 120 can be completed by the scheduled departure time. Note that the scheduled departure time is not necessarily set by the user. For example, the ECU 170 may predict the next scheduled departure time from the usage status of the user's electric vehicle 100. Further, the scheduled departure time does not necessarily have to be set through the navigation device, and may be set, for example, by receiving the user input content to the mobile terminal such as a smartphone through the DCM 160.

  When the timer charging is completed, ECU 170 transmits a message indicating that the charging is completed (hereinafter also referred to as “external charging completion notification”) to the user's mobile terminal through DCM 160. By receiving this message, the user can know that external charging has been completed.

  The pre-air conditioning is a function of performing air conditioning of the electric vehicle 100 before the user gets on. For example, the user can instruct electric vehicle 100 to perform pre-air conditioning before the next departure through the portable terminal. When the user instructs the pre-air conditioning, the portable terminal transmits the pre-air conditioning instruction to the ECU 170 through the DCM 160. When a pre-air conditioning instruction is transmitted from the portable terminal, ECU 170 controls air conditioner 150 to perform pre-air conditioning according to the instruction content (for example, set temperature, scheduled departure time). Specifically, ECU 170 calculates the air conditioning start time from the scheduled departure time, the set temperature, and the like, and operates air conditioner 150 with the arrival of the air conditioning start time. Thereby, in the electric vehicle 100, air conditioning can be performed before the user gets on.

  Note that the pre-air conditioning instruction is not necessarily performed from the portable terminal, and may be performed, for example, from a home HEMS (Home Energy Management System) terminal. Further, the pre-air conditioning is not necessarily performed near the next scheduled departure time, and may be performed immediately, for example, in accordance with a user's start instruction for pre-air conditioning.

  The pre-air conditioning is performed by operating the air conditioner 150 with the electric power of the power storage device 120. On the other hand, it is desirable to fully charge power storage device 120 when the vehicle departs. Therefore, in electrically powered vehicle 100 according to the first embodiment, external charging is performed together with pre-air conditioning. Thus, even if power is consumed by pre-air conditioning, the power is supplemented by external charging, so that power storage device 120 can be brought close to full charge when the vehicle departs.

(Explanation of external charging completion notification)
When external charging before pre-air conditioning is completed, an external charging completion notification is transmitted to the user. Therefore, if external charging accompanying pre-air-conditioning is completed and an external charging completion notification is transmitted at this time as well, multiple external charging completion notifications are transmitted to the user's portable terminal.

  Therefore, in electric powered vehicle 100 according to the first embodiment, when ECU 170 performs pre-air conditioning while operating charging device 130 after completion of external charging, ECU 170 completes external charging accompanying completion of pre-air conditioning. Transmission of the external charging completion notification to the user by the DCM 160 is not executed.

  FIG. 2 is a diagram for explaining an example of the transmission timing of the external charging completion notification in the first embodiment. Referring to FIG. 2, the horizontal axis indicates time, and the events represented on the horizontal axis indicate examples of events that occur in electrically powered vehicle 100 at each time. In this example, timer charging setting and pre-air conditioning setting are performed. Time t4 is set as the scheduled departure time, and ECU 170 calculates time t1 as the charging start time from scheduled departure time t4, and calculates time t3 as the pre-air conditioning start time.

  At time t0, the user connects the charging cable to electric vehicle 100. At time t1, external charging is started. When power storage device 120 becomes fully charged (for example, SOC 80%) at time t2, external charging is completed and an external charging completion notification is transmitted to the user's mobile terminal.

  When pre-air conditioning is started at time t3 and external charging is started again along with the pre-air conditioning, a charging completion notification prohibition period is started. During the charging completion notification prohibition period, ECU 170 does not execute the transmission of the external charging completion notification. The prohibition period is set to a time that is not necessary in normal pre-air conditioning. Therefore, it can be determined that the external charging completed after the prohibition period is not charging for supplementing the power consumed by the pre-air conditioning. When the user does not actually depart at time t4 and the pre-air conditioning is completed at time t5, the external charging is also completed. Since the charging completion notification prohibition period (time t3 to t6) is at time t5, the external charging completion notification according to the end of the pre-air conditioning is not transmitted. In this example, the pre-air conditioning is finished after the scheduled departure time (time t4) has elapsed (time t5), but the pre-air conditioning finish timing is not necessarily limited to such an example. For example, pre-air conditioning may end at the scheduled departure time, or pre-air conditioning may end before the scheduled departure time.

  As described above, in the electric vehicle 100, when the pre-air conditioning is executed while the charging device 130 is operated after the completion of the external charging, the ECU 170 performs the user operation by the DCM 160 upon completion of the external charging accompanying the completion of the pre-air conditioning. Sending external charging completion notification to is not executed. Therefore, in this electric vehicle 100, the external charging completion notification is transmitted only when the external charging is completed before the pre-air conditioning is performed, so that the external charging completion notification does not reach the user a plurality of times. Therefore, according to this electric vehicle 100, the user's uncomfortable feeling with respect to the external charging completion notification can be reduced. Next, a specific processing procedure for external charge completion notification will be described.

(Description of processing procedure for external charging completion notification)
FIG. 3 is a flowchart showing a processing procedure for notification of completion of external charging. The processing shown in this flowchart is repeatedly executed during external charging. Referring to FIG. 3, ECU 170 determines whether or not external charging is completed (step S100). For example, it is determined that the external charging is completed when the charging device 130 is stopped when the SOC of the power storage device 120 reaches 80%. In step S100, it is determined that the external charging is completed only when the external charging is completed.

  If it is determined that the external charging is not completed (NO in step S100), the process proceeds to step S140. If it is determined that the external charging is completed (YES in step S100), ECU 170 determines whether it is within a predetermined time from the start of pre-air conditioning (during the external charging completion notification prohibition period). Note that, when external charging is completed before the start of pre-air conditioning (time t2 in FIG. 2), it is not within a predetermined time from the start of pre-air conditioning, so NO is determined in step S110. On the other hand, when external charging performed together with pre-air conditioning is completed (time t5 in FIG. 2), if it is within a predetermined time from the start of pre-air conditioning, YES is determined in step S110.

  If it is determined that it is not within a predetermined time from the start of pre-air conditioning (during the prohibition period of external charging completion notification) (NO in step S110), the completed external charging may be external charging accompanying pre-air conditioning. Since it is low and there is a high possibility that the external charging completion notification has not yet been transmitted, the ECU 170 transmits the external charging completion notification by the DCM 160 (step S120). If it is determined that it is within a predetermined time from the start of pre-air conditioning (during the prohibition period of external charging completion notification) (YES in step S110), there is a possibility that the completed external charging is external charging accompanying pre-air conditioning. The ECU 170 masks the transmission of the external charging completion notification by the DCM 160 because it is highly likely that the external charging completion notification has already been transmitted before the pre-air conditioning is performed (step S130). That is, the external charging completion notification is not transmitted. Thereafter, the process proceeds to step S140.

  Thus, in electrically powered vehicle 100 according to the first embodiment, when ECU 170 executes pre-air conditioning while operating charging device 130 after the completion of external charging, external charging accompanying the end of pre-air conditioning. The transmission (output) of the external charging completion notification to the user by the DCM 160 is not executed at the completion of the process. According to this electric vehicle 100, since the external charging completion notification is not transmitted a plurality of times, the user's uncomfortable feeling with respect to the charging completion notification can be reduced.

[Embodiment 2]
The electric vehicle according to the second embodiment differs from the first embodiment in the processing procedure of the external charging completion notification. The electric vehicle according to the second embodiment includes ECU 170A instead of ECU 170 in the first embodiment. ECU 170A turns on the charging completion notification flag when transmitting the external charging completion notification, and maintains the charging completion notification flag on until charging cable 200 is disconnected from electric vehicle 100. Then, when the charging completion notification flag is on, ECU 170A does not execute the external charging completion notification even if external charging is completed.

  FIG. 4 is a diagram for explaining an example of the transmission timing of the external charging completion notification in the second embodiment. Referring to FIG. 4, the times t0 to t1 are the same as those in FIG.

  When external charging is completed at time t2, ECU 170A transmits an external charging completion notification and turns on a charging completion notification flag stored in an internal memory (not shown). The on state of the charging completion notification flag is maintained until the charging cable 200 is disconnected from the electric vehicle 100. If pre-air conditioning and external charging are started at time t3 and the user does not actually depart at time t4, pre-air conditioning and external charging are completed at time t5. At this time, since the charging cable 200 has not been disconnected from the electric vehicle 100, the on-state of the charging completion notification flag is maintained. Therefore, transmission of the external charging completion notification is not executed.

  As described above, when the external charging completion notification is transmitted together with the completion of the external charging, the ECU 170A turns on the charging completion notified flag, and when the charging completion notified flag is on, the external charging completion notification by the DCM 160 is sent. Is not executed. Therefore, in the second embodiment, when executing pre-air conditioning while operating charging device 130 after completion of external charging, ECU 170A notifies completion of charging when external charging accompanying completion of pre-air conditioning is completed. Since the completed flag is in the on state, transmission of the external charging completion notification to the user by the DCM 160 is not executed. Thereby, according to electrically powered vehicle 100 in the second embodiment, since the external charging completion notification is not transmitted a plurality of times, the user's discomfort with respect to the charging completion notification can be reduced. Next, a processing procedure for notification of completion of external charging will be described.

(Description of processing procedure for external charging completion notification)
FIG. 5 is a flowchart showing the processing procedure of the external charging completion notification in the second embodiment. The processing shown in this flowchart is repeatedly executed during external charging. Referring to FIG. 5, ECU 170A determines whether or not external charging has been completed (step S200). In step S200, as in step S100 of FIG. 3, it is determined that charging is completed only when external charging is completed.

  If it is determined that the external charging is not completed (NO in step S200), the process proceeds to step S250. If it is determined that the external charging is completed (YES in step S200), ECU 170A has the charging completion notification flag on to determine whether external charging completion notification has already been performed. Is determined (step S210).

  If it is determined that the charging completion notification flag is not in the on state (NO in step S210), ECU 170A issues an external charging completion notification (step S220) because charging of external charging has not yet been performed (step S220). The notified flag is switched from the off state to the on state (step S230).

  If it is determined that the charging completion notification flag is on (YES in step S210), ECU 170A masks transmission of external charging completion notification by DCM 160 because external charging completion notification has already been performed (step S210). S240). That is, the external charging completion notification is not transmitted.

  After step S230 or S240, or when it is determined in step S200 that the external charging is not completed (NO in step S200), ECU 170A determines whether or not charging connector 210 is disconnected from inlet 110 (step S250). ).

  If it is determined that charging connector 210 is not disconnected from inlet 110 (NO in step S250), the process proceeds to step S270. If it is determined that charging connector 210 is disconnected from inlet 110 (YES in step S250), ECU 170A resets (turns off) a charging completion notification flag stored in an internal memory (not shown) (step). S260). Thereafter, the process proceeds to step S270.

  As described above, in the second embodiment, when the pre-air conditioning is performed while operating the charging device 130 after the completion of the external charging, the ECU 170A completes the charging upon completion of the external charging accompanying the end of the pre-air conditioning. Since the notification completion flag is in the ON state, transmission of the external charging completion notification to the user by the DCM 160 is not executed. Thereby, according to electrically powered vehicle 100 in the second embodiment, since the external charging completion notification is not transmitted a plurality of times, the user's discomfort with respect to the external charging completion notification can be reduced.

[Embodiment 3]
The electric vehicle according to the third embodiment is different from the first embodiment in the processing procedure of the external charging completion notification. The electric vehicle according to the third embodiment includes ECU 170B instead of ECU 170 in the first embodiment. ECU 170B estimates the SOC of power storage device 120 at the start of pre-air conditioning. When the SOC is equal to or greater than a predetermined value (for example, 75%), ECU 170B has a high possibility that pre-air conditioning has been executed after completion of external charging, and that there is a high possibility that an external charging completion notification has already been transmitted. For this reason, the transmission of the external charging completion notification is not executed when the external charging is completed upon completion of the pre-air conditioning. When the SOC is less than the predetermined value, the ECU 170B has a high possibility that the pre-air conditioning has been executed before the completion of the external charging, and it is highly likely that the external charging completion notification has not yet been transmitted. Send external charge completion notification upon completion. The predetermined value does not necessarily need to be 80%, and may be a value that can determine whether or not the pre-air conditioning is performed after the completion of the external charging.

  FIG. 6 is a diagram for explaining an example of the transmission timing of the external charging completion notification in the third embodiment. Referring to FIG. 6, time t0 to t2 is the same as that in FIG.

  At time t3, pre-air conditioning and external charging are started, and at the same time, the SOC of power storage device 120 when pre-air conditioning is started is estimated. For example, ECU 170B estimates the SOC at the start of pre-air conditioning from the voltage of power storage device 120 or the like. Since external charging is completed at time t2, the SOC at time t3 is in a fully charged state (for example, 80%). When pre-air conditioning and external charging are completed at time t5, since the SOC at time t3 is equal to or greater than a predetermined value, it is determined that pre-air conditioning has been executed after completion of external charging, and transmission of external charging completion notification is not executed. It is said. Thereby, since the external charging completion notification is not transmitted a plurality of times, the user's uncomfortable feeling with respect to the external charging completion notification can be reduced.

  When pre-air conditioning is performed during external charging (time t1 to t2), the SOC of power storage device 120 at the start of pre-air conditioning has not reached a predetermined value. Therefore, in this case, since the SOC at the start of pre-air conditioning is less than a predetermined value, it is determined that pre-air conditioning has been executed before completion of external charging, and an external charging completion notification is transmitted when external charging is completed. Next, a processing procedure for notification of completion of external charging will be described.

(Description of processing procedure for external charging completion notification)
FIG. 7 is a flowchart showing a processing procedure of external charge completion notification in the third embodiment. The processing shown in this flowchart is repeatedly executed during external charging. In addition, the process which estimates SOC of the electrical storage apparatus 120 at the time of the start of pre air conditioning is performed separately from the process shown by this flowchart.

  Referring to FIG. 7, ECU 170B determines whether or not external charging is completed (step S300). In step S300, as in step S100 of FIG. 3, it is determined that charging is completed only when external charging is completed.

  If it is determined that the external charging is not completed (NO in step S300), the process proceeds to step S340. If it is determined that the external charging is completed (YES in step S300), ECU 170B determines whether or not pre-air conditioning has been performed after completion of external charging. It is determined whether or not the SOC of power storage device 120 is equal to or greater than a predetermined value (step S310).

  When it is determined that the SOC is less than the predetermined value (NO in step S310), ECU 170B determines that pre-air conditioning has been performed during external charging, and executes transmission of external charging completion notification by DCM 160. (Step S320). Thereafter, the process proceeds to step S340.

  If it is determined that the SOC is equal to or greater than the predetermined value (YES in step S310), ECU 170B determines that pre-air conditioning has been executed after completion of external charging, and masks transmission of external charging completion notification by DCM 160. (Step S330). That is, the external charging completion notification is not transmitted. Thereafter, the process proceeds to step S340.

  As described above, in Embodiment 3, when pre-air conditioning is performed, if the SOC of power storage device 120 at the start of pre-air conditioning is equal to or greater than a predetermined value, external control performed in conjunction with pre-air conditioning is performed. When the charging is completed, the transmission of the external charging completion notification by the DCM 160 is not executed. Thereby, according to electrically powered vehicle 100 in the third embodiment, even when pre-air conditioning performed after completion of external charging is completed, external charging completion notification is not transmitted, and external charging completion notification is not transmitted a plurality of times. It is possible to reduce the user's uncomfortable feeling with respect to the external charging completion notification.

  In Embodiments 1 to 3 described above, external charging is timer charging, but external charging is not necessarily timer charging. For example, the present invention can be applied even to external charging in which charging is started immediately when charging cable 200 is connected to electrically powered vehicle 100.

  In the first to third embodiments, the external charging completion notification is performed through the DCM 160, but the external charging completion notification notifying unit is not necessarily limited thereto. For example, the user may be notified of the completion of the external charging by sounding a vehicle horn when the external charging is completed, or the user may be notified of the completion of the external charging by lighting a light.

  In the first to third embodiments, the example in which the present invention is applied to an electric vehicle has been described. However, the scope of application of the present invention is not limited to this, and the present invention is applicable to all vehicles that can perform external charging. can do.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  100 electric vehicle, 110 inlet, 120 power storage device, 130 charging device, 140 PCU, 150 air conditioner, 160 DCM, 170 ECU, 200 charging cable, 210 charging connector, 300 external power source.

Claims (1)

A power storage device;
A charging device configured to receive power from a power source external to the vehicle and charge the power storage device; and
A notification means for outputting a completion notification to the user when the external charging is completed;
An air conditioner configured to receive electric power from the power storage device and perform air conditioning in the vehicle interior;
A control device that performs pre-air conditioning that activates the air conditioning device before the user gets on board,
In the case where the controller performs the pre-air conditioning while operating the charging device after the completion of the external charging, when the external charging is completed upon completion of the pre-air conditioning, the control unit notifies the user by the notification means. A vehicle that does not execute the output of the completion notification.

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