vehicle

Abstract

A vehicle 1 is provided with: a battery 11; an air conditioning device 26 that operates using the power of the battery 11; and a CTU 20 for executing timer charging to charge the battery 11 using the power from an external power supply 30 during a scheduled charging time Δt1 preset by a user. If the air conditioning device 26 operates during the timer charging, the CTU 20 charges the battery 11 until a charging rate S thereof reaches an expected charging rate St, which is the charging rate S expected by charging during the scheduled charging time Δt1 under the assumption that the air conditioning device 26 did not operate, regardless of a charging end time te1 of the scheduled charging time Δt1. If the air conditioning device 26 operates before the start of execution of the timer charging, the CTU 20 expands the scheduled charging time Δt1 on the basis of the expected charging rate St to set a new scheduled charging time Δt2.

Description

[Technical Field]

[0001] The present invention relates to a vehicle that performs timer charging, in which an electricity storage device is charged for a scheduled charging time set by a user. [Background technology]

[0002] Conventionally, there is known technology relating to vehicles that perform timer charging, in which an electricity storage device is charged during a scheduled charging time set by a user. For example, Patent Document 1 describes a vehicle that, if an electrical load device such as an air conditioner starts operating before the start time of timer charging, charges the electricity storage device so that the charge state at that time is maintained. In this vehicle, if timer charging overlaps with the operation of the load device, the electricity stored in the electricity storage device is excluding the amount of electricity consumed by the air conditioner. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-208639 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the vehicle described in Patent Document 1, if the load device is activated during timer charging, charging will only occur as the situation demands, and it may not be possible to increase the charging rate of the power storage device to the target value. Also, if the load device is activated before timer charging, charging to the power storage device will occur during the load device's operating time, which may result in charging occurring during a time period that the user does not want, such as a time period outside of the time periods when electricity rates are low.

[0005] The present invention has been made in consideration of these problems, and its purpose is to provide a vehicle that can perform timer charging of the storage device so as to more appropriately meet the charging rate and charging time period desired by the user. [Means for solving the problem]

[0006] In order to achieve the above object, the vehicle of the present invention comprises a storage device, a load device operated by power from the storage device, and a control device that performs timer charging to charge the storage device with power from an external power source during a planned charging time that is defined as the time between a charging start time and a charging end time that is preset by a user, and if the load device operates during the timer charging, the control device charges the storage device until the charging rate of the storage device becomes equal to or higher than the assumed charging rate that would be expected by charging over the planned charging time if the load device had not operated, regardless of the charging end time of the planned charging time, and if the load device operates before the timer charging begins, the control device sets a new planned charging time that extends the planned charging time based on the assumed charging rate. [Effects of the Invention]

[0007] According to the vehicle of the present invention, it is possible to execute timer charging of the power storage device so as to more appropriately satisfy the charging rate and charging time period desired by the user. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic diagram showing a vehicle according to an embodiment; [Figure 2] FIG. 10 is an explanatory diagram showing an example of the behavior of the charging rate of the battery when timer charging is executed. [Figure 3] FIG. 10 is an explanatory diagram showing an example of the behavior of the battery charging rate when the air conditioner operates and performs battery temperature control during timer charging. [Figure 4] FIG. 10 is an explanatory diagram showing an example of the behavior of the charging rate of the battery when battery temperature control is performed before timer charging is started. [Figure 5] FIG. 10 is an explanatory diagram showing an example of the behavior of the charging rate of the battery when it is predicted that battery temperature control will be performed during timer charging. [Figure 6] 10 is a flowchart illustrating an example of timer charging control. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a schematic diagram showing a vehicle according to the embodiment. The vehicle 1 according to the embodiment is an electric vehicle having front wheels 3 and rear wheels 4, and equipped with an electric motor 5 that drives the front wheels 3 with power supplied from a battery 11 (power storage device). Note that, although the embodiment will be described taking an electric vehicle as an example, the vehicle may also be a plug-in hybrid vehicle that uses external charging, in which power is supplied from an external power source to the battery 11 mounted on the vehicle for charging, or external power feeding, in which power is supplied from the battery 11 to electrical appliances outside the vehicle.

[0010] The motor 5 is driven by a supply of high-voltage power from a battery 11 mounted on the vehicle 1, and drives a drive shaft 8 of the front wheels 3 via a front transaxle 7 that includes a reduction gear, a differential, etc. The battery 11 is connected to the motor 5 via an inverter 10, and the direct current of the battery 11 is converted into alternating current by the inverter 10 and supplied to the motor 5. Furthermore, three-phase alternating current regenerated by the motor 5 while the vehicle 1 is traveling is converted into direct current by the inverter 10 and charged to the battery 11. The battery 11 is formed from a secondary battery such as a lithium-ion battery, and is provided with a charging rate detector 11a that detects its charging rate (SOC: State Of Charge). The battery 11 is also provided with a temperature detector 11b that detects its temperature.

[0011] The vehicle 1 is equipped with a power receiving unit 24 that is connected to an external power source 30, such as a household power source, via a charging connector 32. The power receiving unit 24 includes an inlet into which the charging connector 32 is inserted, a power supply circuit for supplying power from the external power source 30 to the battery 11, and the like. The vehicle 1 is also equipped with a load device that receives power from the battery 11. The load device is, for example, an air conditioner 26 that conditions the air in the vehicle cabin and regulates the temperature of the battery 11 (hereinafter referred to as "battery temperature regulation"). The vehicle 1 is also equipped with an outside air temperature sensor 27 that acquires the outside air temperature, which is the temperature outside the vehicle.

[0012] The vehicle 1 includes a control unit 20 (hereinafter referred to as "CTU 20") as a control device. The CTU 20 includes input / output devices, storage devices (ROM, RAM, non-volatile RAM, etc.), a central processing unit (CPU), a timer, and the like. The CTU 20 acquires information such as the accelerator position and vehicle speed of the vehicle 1 from sensors (not shown), and controls the inverter 10 to control the output of the motor 5 based on the acquired information. When the charging connector 32 is connected to the power receiving unit 24, the CTU 20 controls a power supply circuit (not shown) of the power receiving unit 24 to supply power from the external power source 30 to the battery 11 and charge the battery 11. The CTU 20 acquires the outside air temperature detected by the outside air temperature sensor 27 and the temperature of the battery 11 detected by the temperature detection unit 11b, and operates the air conditioner 26 to prevent the temperature of the battery 11 from exceeding a predetermined temperature based on the acquired outside air temperature and temperature of the battery 11. The CTU 20 stores a history of battery temperature adjustment by the air conditioner 26.

[0013] Next, timer charging of the battery 11 will be described. FIG. 2 is an explanatory diagram showing an example of the behavior of the charging rate S of the battery 11 when timer charging is performed. Here, it is assumed that the charging connector 32 is connected to the power receiving unit 24 at time t0 while the vehicle 1 is stopped. When a planned charging time Δt1 is set by the user, the CTU 20 performs timer charging to charge the battery 11 with power from the external power source 30 during the planned charging time Δt1. The planned charging time Δt1 is defined as the time between a charging start time ts1 and a charging end time te1 set by the user. The charging start time ts1 and the charging end time te1 are input by the user via a predetermined input device, such as an information terminal mounted on the vehicle 1. As a result, the power from the external power source 30 is charged into the battery 11 between the charging start time ts1 and the charging end time te1, as shown by the solid line in the diagram. Therefore, charging can be performed during a time period desired by the user (for example, the low electricity rate time period Δtb described later), and charging can be terminated by approaching the charging rate S of the battery 11 desired by the user (for example, the estimated charging rate St described later).

[0014] Next, Fig. 3 is an explanatory diagram showing an example of the behavior of the charging rate S of the battery 11 when the air conditioner 26 operates to perform battery temperature control during timer charging. As shown by the solid line in the figure, if the air conditioner 26 operates during timer charging, for example, between time ta1 and time ta2, the charging rate S of the battery 11 decreases by the amount of power consumed by the air conditioner 26. As a result, the charging rate S at the charging end time te1 becomes a charging rate S2, which is lower than the example shown in Fig. 2, and is thereafter maintained at this charging rate S2, as shown by the dashed-dotted line. Therefore, when battery temperature control is performed during timer charging, the CTU 20 of this embodiment continues charging until the charging rate S of the battery 11 becomes equal to or higher than the assumed charging rate St, regardless of the charging end time te1.

[0015] The assumed charging rate St is the final charging rate S of the battery 11 when timer charging is performed for the scheduled charging time Δt1 without battery temperature control, and is calculated by the CTU 20. Specifically, the CTU 20 calculates the charging power (W) to the battery 11 as the smaller of the power (W) supplied from the external power source 30 and the current inputtable power (W) of the battery 11. The inputtable power of the battery 11 is obtained based on the specifications of the battery 11, the current temperature, the charging rate S, etc. The magnitude of the power supplied from the external power source 30 is obtained when the charging connector 32 is connected to the power receiving unit 24. The CTU 20 multiplies the charging power by the scheduled charging time Δt1 to obtain a value (Wh) by the capacity (Wh) of the battery 11, and then multiplies the result by 100 to calculate the increased charging rate ΔS (%). The increased charging rate ΔS is the increase in the charging rate S when timer charging is performed for the scheduled charging time Δt1 without battery temperature control. The CTU 20 calculates the estimated charging rate St by adding the increased charging rate ΔS to the charging rate S1 of the battery 11 detected by the charging rate detection unit 11a when the charging connector 32 is connected to the power receiving unit 24. Note that the charging rate S1 here may be the charging rate S of the battery 11 at the charging start time ts1. As a result, as shown by the solid line in the figure, the charging rate S continues to increase after the charging end time te1, and charging ends when the final charging rate S becomes equal to or higher than the estimated charging rate St.

[0016] Next, FIG. 4 is an explanatory diagram showing an example of the behavior of the charging rate S of the battery 11 when battery temperature control is performed before timer charging begins. Assume that battery temperature control is performed between time ta3 and time ta4, which is before the charging start time ts1. As a result, as shown by the charging rate S3 in the figure, the charging rate S before timer charging begins decreases by the amount of power consumed by the air conditioner 26. Therefore, if timer charging is performed during the scheduled charging time Δt1, the final charging rate S of the battery 11 will be lower than the assumed charging rate St, as shown by the dashed-dotted line in the figure. Therefore, if there is a history of battery temperature control performed before timer charging begins, the CTU 20 of this embodiment sets a new scheduled charging time Δt2 by extending the scheduled charging time Δt1 based on the assumed charging rate St.

[0017] The new planned charging time Δt2 is the charging time required to increase the battery 11's charging rate S from the charging rate S3, which is reduced by the amount of power consumed by the air conditioner 26, to the assumed charging rate St. It is defined as the time between the new charging start time ts2 and the new charging end time te2. The CTU 20 calculates the planned charging time Δt2 based on the battery 11's charging rate S3 and the assumed charging rate St. Note that the charging rate S3 may be the value detected by the charging rate detection unit 11a at the time battery temperature adjustment is completed. The CTU 20 sets the planned charging time Δt2 by adjusting at least one of the charging start time ts1 and the charging end time te1. FIG. 4 shows an example in which the new charging start time ts2 is earlier than the original charging start time ts1. In this way, by adjusting the charging start time ts2 with priority over the charging end time te2 to set the planned charging time Δt2, the new charging end time te2 is as close to the original charging end time te1 as possible, thereby ensuring the user's desired timer charging end time.

[0018] Additionally, the CTU 20 takes into account the low-energy-rate time slot Δtb when setting the new planned charging time Δt2. The low-energy-rate time slot Δtb is a time slot (e.g., late night) during which electricity rates are lower than other times of the day. The CTU 20 may acquire information about the low-energy-rate time slot Δtb entered in advance by the user, or may acquire the information by communicating with an external server that stores the information. While FIG. 4 illustrates an example in which the new planned charging time Δt2 is entirely within the low-energy-rate time slot Δtb, it is also possible that the new planned charging time Δt2 will be longer than the low-energy-rate time slot Δtb. In this case, the CTU 20 sets the charging start time ts2 and charging end time te2 for the planned charging time Δt2 so that the planned charging time Δt2 falls within the acquired low-energy-rate time slot Δtb as long as possible. This allows timer charging to be performed within the low-energy-rate time slot Δtb as much as possible. It is preferable that the user be able to select whether to prioritize adjusting the charging start time ts2 over the charging end time te2, or making the planned charging time Δt2 included within the low electricity rate time period Δtb the longest.

[0019] By setting the planned charging time Δt2 as described above, the battery 11 is charged between the charging start time ts2 and the charging end time te2 during the planned charging time Δt2, as shown by the solid line in the figure. This allows the charging rate S of the battery 11 to approach the assumed charging rate St as closely as possible. However, it is possible that the charging rate S of the battery 11 will not reach or exceed the assumed charging rate St during charging during the planned charging time Δt2. Therefore, as shown by the two-dot chain line in the figure, the CTU 20 of this embodiment charges the battery 11 until the charging rate S of the battery 11 reaches or exceeds the assumed charging rate St, regardless of the charging end time te2. This ensures that the battery 11 is charged to the assumed charging rate St. Furthermore, because the planned charging time Δt2 is set based on the assumed charging rate St, even if charging is extended beyond the charging end time te2, the extended time can be kept relatively short.

[0020] Next, FIG. 5 is an explanatory diagram showing an example of the behavior of the charging rate S of the battery 11 when battery temperature control is predicted to be performed during timer charging. As described above, if the air conditioner 26 operates during timer charging, for example, between time ta1 and time ta2, the charging rate S of the battery 11 decreases by the amount of power consumed by the air conditioner 26 (see the dashed-dotted line in the figure). Therefore, in this embodiment, the CTU 20 predicts whether battery temperature control by the air conditioner 26 will be performed during timer charging before timer charging begins. Specifically, the CTU 20 acquires the current outside air temperature from the outside air temperature sensor 27 and the current temperature of the battery 11 from the temperature detection unit 11b, and predicts the execution of battery temperature control based on the acquired outside air temperature and battery 11 temperature. The execution of battery temperature control may be predicted, for example, by experimentation, analysis, or machine learning based on empirical values ​​accumulated using an actual device. Furthermore, the accuracy of the prediction of battery temperature control can be improved by performing the prediction multiple times up until the charging start time ts1. Furthermore, when predicting the execution of battery temperature control, the CTU 20 also predicts the duration of battery temperature control, and calculates (predicts) the power consumption due to battery temperature control based on the duration.

[0021] If the CTU 20 predicts, before the timer-controlled charging starts, that battery temperature control will be performed during the timer-controlled charging, it sets a new planned charging time Δt3 by extending the planned charging time Δt1. The new planned charging time Δt3 is calculated based on the power consumption due to the battery temperature control, the current (prediction time) battery 11 charging rate S1, and the assumed charging rate St, as the charging time required to increase the battery 11 charging rate S to the assumed charging rate St after the charging rate S1 has decreased by the amount of power consumed by the air conditioner 26. The method for setting the charging start time ts3 and charging end time te3 for the new planned charging time Δt3 is the same as the charging start time ts2 and charging end time te2 for the new planned charging time Δt2 described above, and therefore will not be described here. The CTU 20 charges the battery 11 between the charging start time ts3 and charging end time te3 for the set new planned charging time Δt3. However, if the charging rate S of the battery 11 is less than the assumed charging rate St at the charging end time te3, the CTU 20 charges the battery 11 until the charging rate S of the battery 11 becomes equal to or greater than the assumed charging rate St, regardless of the charging end time te2. This provides the same effect as the example shown in Fig. 4. If the case in which battery temperature control is performed before the start of timer charging as shown in Fig. 4 and the case in which battery temperature control is predicted during timer charging as shown in Fig. 5 overlap, a new planned charging time can be set taking into account the decrease in charging rate S in both cases.

[0022] Next, Fig. 6 is a flowchart showing an example of timer-based charging control. The timer-based charging control shown in Fig. 6 is executed by CTU 20 when charging connector 32 is connected to power receiving unit 24. During execution of the timer-based charging control shown in Fig. 6, charging of battery 11 is started when the current time reaches charging start times ts1, ts2, and ts3 of the scheduled charging times Δt1, Δt2, and Δt3.

[0023] The CTU 20 acquires information on the infrastructure power, information on the charging rate S and available input power of the battery 11, and information on the planned charging time Δt1 set in advance by the user (step ST1). The information on the infrastructure power is information on the power supplied from the above-mentioned external power source 30. Next, the CTU 20 calculates the above-mentioned estimated charging rate St of the battery 11 based on the input information on the infrastructure power, the charging rate S of the battery 11, the available input power, and the planned charging time Δt1 (step ST2).

[0024] Next, the CTU 20 inputs the current outside air temperature and the current temperature of the battery 11, and predicts whether or not battery temperature control will be performed by the air conditioner 26 during the planned charging time Δt1 based on the input current outside air temperature and current temperature of the battery 11 (step ST3). Then, the CTU 20 determines whether or not there is a history of battery temperature control being performed (step ST4). The temperature control performance history in step ST4 includes a history of battery temperature control actually being performed, a history of battery temperature control currently being performed, and a history of battery temperature control performance prediction made in step ST3.

[0025] If the CTU 20 determines that there is no history of battery temperature adjustment (Yes in step ST4), it determines whether the current time has reached the charging end time te1 (step ST5). If the CTU 20 determines that the current time has not reached the charging end time te1 (No in step ST5), it repeats the processing from step ST3 onwards. On the other hand, if the CTU 20 determines that the current time has reached the charging end time te1 (Yes in step ST5), it ends this routine because charging for the planned charging time Δt1 has ended. As a result, charging of the battery 11 for the preset planned charging time Δt1 is completed, as shown in FIG. 2.

[0026] Furthermore, if the CTU 20 determines that battery temperature adjustment has been performed (No in step ST4), it determines whether the current time has passed the charging start time ts1 for the scheduled charging time Δt1 and whether timer charging has already started (step ST6). If the CTU 20 determines that timer charging has already started (Yes in step ST6), that is, if temperature adjustment has been performed during timer charging as shown in FIG. 3, the CTU 20 determines whether the charging rate S of the battery 11 has reached or exceeded the assumed charging rate St (step ST7). If the CTU 20 determines that the charging rate S of the battery 11 has not reached or exceeded the assumed charging rate St (No in step ST7), it waits until the charging rate S reaches or exceeded the assumed charging rate St. On the other hand, if the CTU 20 determines that the charging rate of the battery 11 has reached or exceeded the assumed charging rate St (Yes in step ST7), it ends this routine. As a result, as shown by the solid line in FIG. 3, the battery 11 can be charged to the assumed charging rate St even if temperature adjustment has been performed during timer charging.

[0027] Furthermore, if the CTU 20 determines that timer charging has not yet started (No in step ST6), it extends the planned charging time Δt1 (step ST8). That is, if there is a history of battery temperature control and timer charging has not yet started, either the case where battery temperature control was performed before timer charging started as shown in FIG. 4 or the case where battery temperature control is predicted to be performed during timer charging as shown in FIG. 5 occurs. Therefore, the CTU 20 sets new planned charging times Δt2 and Δt3 by extending the planned charging time Δt1 based on the assumed charging rate St, and executes the processing from step ST3 onwards. As a result, the processing in steps ST3, ST4, and ST6 is repeatedly executed until the current time reaches the new charging start times ts2 and ts3. Then, when the current time reaches the newly set charging start times ts2 and ts3, it is determined in step ST6 that timer charging has already started, and the processing then proceeds to step ST7. As a result, the battery 11 is charged to the assumed charging rate St whether battery temperature control was performed before timer charging started or battery temperature control is predicted to be performed during timer charging.

[0028] As described above, in the vehicle 1 of the embodiment, if the air conditioner 26 is operated during timer charging, the CTU 20 charges the battery 11 until the charging rate S of the battery 11 becomes equal to or greater than the estimated charging rate St that would be expected by charging during the scheduled charging time Δt1 if the air conditioner 26 had not been operated, regardless of the charging end time te1 of the scheduled charging time Δt1, and if the air conditioner 26 is operated before the timer charging starts (if battery temperature adjustment is performed), the CTU 20 extends the scheduled charging time Δt1 based on the estimated charging rate St and sets a new scheduled charging time Δt2.

[0029] With this configuration, if the air conditioner 26 operates during timer-activated charging, the battery 11's charging rate S can be set to the assumed charging rate St that was previously set by the timer-activated charging. Furthermore, if the air conditioner 26 operates before timer-activated charging is performed, timer-activated charging is performed for a new planned charging time Δt2 that is extended based on the assumed charging rate St. This allows the battery 11's charging rate S to be brought as close as possible to the assumed charging rate St. Furthermore, since the new planned charging time Δt2 is set by extending the original planned charging time Δt1, the new planned charging time Δt2 does not deviate significantly from the charging time slot previously desired by the user. Therefore, with the vehicle 1 of this embodiment, timer-activated charging of the battery 11 can be performed to more appropriately satisfy the user's desired charging rate S and charging time slot. The configuration of this embodiment is particularly suitable for electric vehicles, in which the battery 11 is charged more frequently than in plug-in hybrid vehicles and a sufficient charging rate S is desired.

[0030] Furthermore, before timer-activated charging begins, CTU 20 predicts whether the air conditioner 26 will operate during timer-activated charging based on the outside air temperature and the temperature of the battery 11. If operation of the air conditioner 26 is predicted during timer-activated charging, CTU 20 sets a new planned charging time Δt3 based on the assumed state of charge St. With this configuration, by setting a new planned charging time Δt3 when operation of the air conditioner 26 is predicted during timer-activated charging, timer-activated charging can be started at a charging start time ts2 that is earlier than the charging start time ts1 of the original planned charging time Δt1. This makes it easier to maintain the timer-activated charging end time te1 desired by the user.

[0031] The CTU 20 also acquires information about low electricity rate time periods Δtb, when electricity rates are lower than other time periods, and sets new scheduled charging times Δt2 and Δt3 so that the new scheduled charging times Δt2 and Δt3 are as long as possible within the acquired low electricity rate time periods Δtb. This configuration enables timer charging to be performed as long as possible within the low electricity rate time periods Δtb.

[0032] Furthermore, the CTU 20 sets new planned charging times Δt2 and Δt3 by adjusting the charging start times ts2 and ts3 to take priority over the charging end times te2 and te3. This configuration makes it possible to more appropriately maintain the original charging end time te1 desired by the user.

[0033] Furthermore, the CTU 20 charges the battery 11 until the charging rate S becomes equal to or higher than the assumed charging rate St, regardless of the charging end times te2 and te3 of the new scheduled charging times Δt2 and Δt3. This configuration makes it possible to more reliably make the charging rate S of the battery 11 equal to or higher than the assumed charging rate St.

[0034] Although the description of the embodiment has been completed above, the aspects of the present invention are not limited to this embodiment. For example, in this embodiment, the air conditioner 26 is used as an example of the load device, but the load device may be any device that operates on the power of the battery 11 during timer charging.

[0035] Furthermore, in this embodiment, in principle, charging of the battery 11 continues until the charging rate S reaches the assumed charging rate St, regardless of the charging end times te2 and te3 of the new planned charging times Δt2 and Δt3. However, the CTU 20 may also end charging of the battery 11 at the charging end times te2 and te3 of the new planned charging times Δt2 and Δt3, even if the charging rate S has not reached the assumed charging rate St. For example, as shown in FIG. 1 , the vehicle 1 is provided with a mode selection switch 28 that allows the user to select a time slot priority mode that prioritizes a charging time slot over the charging rate S of the battery 11. Then, when the CTU 20 determines, based on a signal from the mode selection switch 28, that the user has selected the time slot priority mode, it may also end charging of the battery 11 at the charging end times te2 and te3 of the new planned charging times Δt2 and Δt3, even if the charging rate S has not reached the assumed charging rate St.

[0036] With this configuration, by adhering to the new planned charging times Δt2 and Δt3, which are extensions of the original planned charging time Δt1, charging can be performed as close as possible to the user's desired charging time period (especially the low electricity rate time period Δtb). Furthermore, because the new planned charging times Δt2 and Δt3 are set based on the assumed charging rate St, even if the charging rate S has not reached the assumed charging rate St, it is possible to bring the final charging rate S as close as possible to the assumed charging rate St.

[0037] Furthermore, when the CTU 20 terminates charging of the battery 11 at the charging end times te2 and te3, for example, when the time slot priority mode is selected, the CTU 20 may set the new scheduled charging times Δt2 and Δt3 so that they all fall within the low electricity rate time slot Δtb. This allows timer charging to be performed only within the low electricity rate time slot Δtb. [Explanation of symbols]

[0038] 1 vehicle 11 Battery 20 Control unit (control device) 26 Air conditioner (load device) 28 Mode selection switch 30 External power supply S, S1, S2, S3 charging rate St Estimated charging rate te1, te2, te3 Charging end time ts1, ts2, ts3 Charging start time Δt1, Δt2, Δt3 Expected charging time Δtb Low electricity price period

Claims

1. a power storage device; a load device that operates using the power of the power storage device; a control device that executes timer charging to charge the power storage device with power from an external power supply during a planned charging time that is defined as the time between a charging start time and a charging end time that are preset by a user; Equipped with The control device If the load device is activated during the timer charging, regardless of the charging end time of the scheduled charging time, the power storage device is charged until the charging rate of the power storage device becomes equal to or higher than the assumed charging rate that would be expected by charging during the scheduled charging time if the load device had not been activated, When the load device is activated before the timer-controlled charging starts, a new planned charging time is set by extending the planned charging time based on the assumed charging rate.

2. the load device is an air conditioning device that performs temperature control of the power storage device, 2. The vehicle according to claim 1, wherein the control device predicts whether the air conditioning device will operate during the timer-controlled charging based on the outside air temperature and the temperature of the power storage device before the timer-controlled charging starts, and if the air conditioning device is predicted to operate during the timer-controlled charging, sets the new planned charging time based on the assumed charging rate.

3. 2. The vehicle according to claim 1, wherein the control device acquires information about low electricity rate time periods when electricity rates are lower than other time periods, and sets the new planned charging time so that the new planned charging time falls within the acquired low electricity rate time periods as long as possible.

4. The vehicle according to claim 1 , wherein the control device sets the new planned charging time by adjusting the charging start time with priority over the charging end time.

5. 5. The vehicle according to claim 1, wherein the control device charges the power storage device until the charging rate becomes equal to or greater than the assumed charging rate, regardless of the charging end time of the new planned charging time.

6. a mode selection switch that allows a user to select a time period priority mode in which a charging time period takes priority over the charging rate; 5. The vehicle according to claim 1, wherein when the time zone priority mode is selected, the control device terminates charging of the power storage device at the charging end time of the new planned charging time even if the charging rate has not reached the assumed charging rate.

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