JP2018098926A - Vehicle - Google Patents

Abstract

Deterioration of a power storage device provided in a vehicle interior is suppressed. When plug-in charging is in progress (YES in S100) and the vehicle interior temperature or solar battery temperature is equal to or higher than a threshold Ta (YES in S102 or YES in S104), A step of determining whether or not it is a time zone with surplus power (S106), and when it is a time zone with surplus power (YES in S106) and the surplus power is greater than or equal to a threshold value Pa (S108). YES at step S110, when there is an ON reply within a predetermined time (YES at S112), a step of operating the air conditioner and the cooling fan (S114), and within a predetermined time If there is no ON reply (NO in S112), or if the surplus power is lower than threshold Pa and equal to or greater than threshold Pn (S1) YES at 6), and a step (S118) to operate the outside air introduction switching damper and a cooling fan, executes the control process. [Selection] Figure 3

Description

  The present disclosure relates to air conditioning control in a vehicle interior equipped with a power storage device that can be charged using an external power source.

  Conventionally, a vehicle equipped with a power storage device capable of charging using an external power source (hereinafter also referred to as external charging) is known. In such a vehicle, the temperature in the vehicle interior can be adjusted before the user uses it by operating the vehicle-mounted air conditioner using the power from the external power source. For example, Japanese Unexamined Patent Application Publication No. 2012-210004 (Patent Document 1) discloses a technology for predicting a power supply / demand situation using a home energy management system (HEMS) and operating an in-vehicle air conditioner with an operation amount based on a prediction result. To do.

  On the other hand, a vehicle equipped with a solar cell that converts light energy into electric power at a predetermined position such as a roof of the vehicle is known. In such a vehicle, a power storage device that supplies power to an auxiliary machine or the like using power output from a solar battery is charged. For example, the power storage device may be mounted in a vehicle interior.

JP 2012-210004 A

  Since sunlight enters the vehicle room during the daytime, the temperature may be higher than the room temperature depending on the location. Therefore, for example, when a power storage device is mounted in a vehicle interior, even if the indoor temperature is adjusted, the temperature of the power storage device becomes higher than the indoor temperature, and deterioration may be promoted.

  The present disclosure has been made to solve the above-described problems, and an object thereof is to provide a vehicle that suppresses deterioration of a power storage device provided in a vehicle interior.

  A vehicle according to an aspect of the present disclosure includes a solar battery that converts light energy into electric power, a first power storage device that is provided in a vehicle interior and that is charged using electric power output from the solar battery, and first power storage A second power storage device that is charged using at least one of the power of the device and the power of the external power supply of the vehicle, the air conditioner that adjusts the temperature of the air in the vehicle interior, and the interior of the vehicle A cooling device for introducing outside air to cool equipment in the vehicle interior and a control device for controlling the air conditioning device and the cooling device are provided. When the temperature of the first power storage device is higher than the first value during charging of the second power storage device using the external power source, the control device supplies the second surplus power that can be additionally supplied from the external power source. When the air conditioner is higher than the value, the air conditioner is operated, and when the surplus power is lower than the second value and higher than the third value, the air conditioner is stopped and the cooling device is operated.

  If it does in this way, it can control that the temperature of the 1st electrical storage device maintains the high temperature state higher than the 1st value. Therefore, it is possible to suppress the deterioration of the first power storage device.

  According to the present disclosure, it is possible to provide a vehicle that suppresses deterioration of a power storage device provided in the vehicle interior.

1 is a diagram schematically showing an overall configuration of a vehicle according to an embodiment. It is a block diagram which shows the structure of the apparatus mounted in the vehicle which concerns on this Embodiment. It is a flowchart which shows the control processing performed with ECU mounted in the vehicle which concerns on this Embodiment.

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

  Further, in the embodiment described below, the vehicle will be described as an example of an electric vehicle equipped with a motor generator as a drive source. However, the vehicle is a hybrid further equipped with an engine as a drive source or a power source of a generator. It may be a vehicle, or may be a vehicle that uses only the engine as a drive source instead of the motor generator.

  FIG. 1 is a diagram schematically showing an overall configuration of a vehicle 1 according to the present embodiment. As shown in FIG. 1, the vehicle 1 according to the present embodiment includes a battery pack 20, a PCU (Power Control Unit) 30, a solar PCU 40, a solar panel 50, a solar battery 60, and an auxiliary battery 70. And an inlet 130.

  Battery pack 20 includes a power storage device that stores rechargeable DC power. Examples of the power storage device include secondary batteries such as nickel metal hydride batteries and lithium ion batteries. The battery pack 20 transmits and receives electric power to and from a motor generator 6 (see FIG. 2, hereinafter referred to as MG6) that is a drive source of the vehicle 1. The power of the battery pack 20 is supplied to the MG 6 via the PCU 30. Moreover, the battery pack 20 is charged using the electric power generated by the MG 6. Further, the battery pack 20 is charged using electric power supplied from a power source (see FIG. 2) outside the vehicle 1 via the inlet 130. The power storage device is not limited to a secondary battery, and may be a device that can exchange DC power with MG6, such as a capacitor. The battery pack 20 is provided at a position below the rear seat of the vehicle 1 and between the left and right rear wheel houses, for example.

  The PCU 30 converts the DC power of the battery pack 20 into AC power and supplies it to the MG 6, or converts the regenerative power (AC power) generated in the MG 6 into DC power and supplies it to the battery pack 20.

  PCU 30 includes, for example, a converter and an inverter (both not shown) having a plurality of switching elements. Converters and inverters operate by on / off control of switching elements. The converter boosts the voltage of the DC power received from the battery pack 20 and outputs it to the inverter. The inverter converts the DC power output from the converter into AC power and outputs it to MG6. Thereby, MG 6 is driven using the electric power stored in battery pack 20.

  Further, the inverter converts AC power generated by MG 6 into DC power and outputs it to the converter. The converter steps down the voltage of the DC power output from the inverter and outputs it to the battery pack 20. Thereby, the battery pack 20 is charged using the electric power generated by the MG 6. The converter may be omitted.

  PCU 30 further includes a DC / DC converter (not shown) that converts the voltage of battery pack 20 into a voltage suitable for charging auxiliary battery 70. The DC / DC converter charges the auxiliary battery 70 by supplying the converted electric power to the auxiliary battery 70.

  The solar panel 50 is a solar cell that converts light energy (for example, light energy of sunlight) into DC power. In the present embodiment, the solar panel 50 is installed on the surface of the roof of the vehicle 1 as shown in FIG. The electric power generated in the solar panel 50 is supplied to the solar battery 60 via the solar PCU 40. Note that the solar panel 50 may be disposed on the surface of a portion other than the roof of the vehicle 1 (for example, a hood or the like).

  The solar battery 60 is a power storage device that stores the electric power generated in the solar panel 50. Examples of the power storage device include secondary batteries such as nickel metal hydride batteries and lithium ion batteries. The solar battery 60 is configured by connecting a plurality of (for example, three) cells or a module including a plurality of cells connected in series. The solar battery 60 is provided at a predetermined position in the vehicle 1 (for example, at the bottom of the center console). In addition, the interior of the vehicle 1 includes a space (for example, a cabin) in the vehicle 1 on which an occupant is boarded and a space (for example, a luggage compartment) that communicates with the space.

  The solar PCU 40 converts the DC power output from the solar panel 50 into a voltage capable of charging the solar battery 60 in accordance with a control signal from the ECU (Electronic Control Unit) 100 (see FIG. 2), 60 direct current power is converted into a voltage capable of charging the battery pack 20. Specifically, the solar PCU 40 charges the battery pack 20 using the power of the solar battery 60 when, for example, the SOC (State Of Charge) of the solar battery 60 increases until reaching an upper limit value, or The auxiliary battery 70 is charged. Or solar PCU40 charges the solar battery 60 using the electric power output from the solar panel 50, for example, when SOC of the solar battery 60 reduces until it reaches a lower limit.

  The auxiliary battery 70 supplies power to the auxiliary load. Auxiliary equipment loads are, for example, electric equipment (for example, car navigation system, audio equipment, etc.) provided in the interior of the vehicle 1, an inside air circulation mode and an outside air introduction mode of an air conditioner (hereinafter referred to as an air conditioner) described later. An outside air introduction switching damper for switching between, a cooling device for supplying cooling air to the solar battery 60, various ECUs mounted on the vehicle 1, and the like.

  Hereinafter, each configuration mounted on the vehicle 1 will be described in detail with reference to FIG. FIG. 2 is a block diagram illustrating a configuration of the device mounted on the vehicle 1 according to the present embodiment. As shown in FIG. 2, vehicle 1 further includes drive wheels 2, power transmission gear 4, MG 6, communication device 92, ECU 100, air conditioner 140, outside air introduction switching damper 150, and cooling fan 160. Prepare.

  MG6 is, for example, a three-phase AC rotating electric machine. The output torque of the MG 6 is transmitted to the drive wheels 2 via the power transmission gear 4 constituted by a speed reducer or the like. The MG 6 can also generate power by the rotational force of the drive wheels 2 during the regenerative braking operation of the vehicle 1. 1 and FIG. 2 shows an example of a configuration in which only one motor generator is provided as a drive source. However, the number of motor generators is not limited to this, and a plurality of motor generators (for example, 2) It is good also as a structure provided.

  The battery pack 20 includes an assembled battery 22, a system main relay (hereinafter referred to as SMR) 24, a first charging relay (hereinafter referred to as CHRA) 26, and a second charging relay (hereinafter referred to as CHRB). ) 28 and the charging device 120.

  The assembled battery 22 is configured by connecting a plurality of modules including a plurality of cells in series. Alternatively, the assembled battery 22 may be configured by connecting a plurality of cells in series. In the assembled battery, the voltage of the assembled battery 22 is, for example, about 200V.

  The SMR 24 is provided in the middle of the power lines PL1 and NL1 that connect the PCU 30 and the assembled battery 22. Based on the control signal C1 from the ECU 100, the SMR 24 electrically connects the PCU 30 and the assembled battery 22 (on state) or disconnects them (off state).

  The CHRA 26 is provided in the middle of the power lines PL2 and NL2 branched from the power lines PL1 and NL1 connecting the assembled battery 22 and the SMR 24 and connected to the solar PCU 40. Based on the control signal C2 from the ECU 100, the CHRA 26 makes the power lines PL1, NL1 and the solar PCU 40 electrically connected (on state) or shuts off (off state).

  Solar PCU 40 includes a high voltage DC / DC converter 42, a solar DC / DC converter 44, an auxiliary DC / DC converter 46, and a monitoring circuit 48.

  The high voltage DC / DC converter 42 converts the DC power of the solar battery 60 into DC power that can charge the assembled battery 22 based on a control signal from the ECU 100. The high voltage DC / DC converter 42 supplies the converted power to the assembled battery 22.

  The solar DC / DC converter 44 converts the DC power supplied from the solar panel 50 into DC power that can charge the solar battery 60 based on a control signal from the ECU 100. The solar DC / DC converter 44 supplies the converted electric power to the solar battery 60.

  Auxiliary machine DC / DC converter 46 converts DC power of solar battery 60 into DC power that can charge auxiliary battery 70 based on a control signal from ECU 100. The auxiliary DC / DC converter 46 supplies the converted electric power to the auxiliary battery 70.

  The monitoring circuit 48 monitors the state of the solar battery 60. The solar battery 60 is provided with a temperature sensor 62, a voltage sensor 64, and a current sensor 66. The temperature sensor 62 detects the temperature (hereinafter referred to as battery temperature) TBs of the solar battery 60, and transmits a signal indicating the detected battery temperature TBs to the monitoring circuit 48. The voltage sensor 64 detects the voltage VBs of the entire solar battery 60 and transmits a signal indicating the detected voltage VBs to the monitoring circuit 48. The current sensor 66 detects the current IBs of the solar battery 60 and transmits a signal indicating the detected current IBs to the monitoring circuit 48.

  The monitoring circuit 48 outputs information about the state of the solar battery 60 to the ECU 100. For example, the monitoring circuit 48 outputs the detection results received from each sensor to the ECU 100, or executes predetermined arithmetic processing on the detection results received from each sensor, and outputs the execution results to the ECU 100. . Specifically, the monitoring circuit 48 calculates the SOC of the solar battery 60 based on the temperature TBs, the voltage VBs, and the current IBs of the solar battery 60, and outputs information indicating the calculated SOC to the ECU 100.

  The monitoring circuit 48 estimates, for example, an OCV (Open Circuit Voltage) based on the current IBs, voltage VBs, and battery temperature TBs of the solar battery 60, and solar battery based on the estimated OCV and a predetermined map. An SOC of 60 may be estimated. Alternatively, the monitoring circuit 48 may estimate the SOC of the solar battery 60 by, for example, integrating the charging current and discharging current of the solar battery 60.

  The positive output terminal and the negative output terminal of charging device 120 are connected to power lines PL3 and NL3 branched from power lines PL1 and NL1, respectively. The input terminal of the charging device 120 is connected to the inlet 130. Based on the control signal C4 from the ECU 100, the charging device 120 converts AC power supplied to the input terminal from the house 200, which will be described later, via the inlet 130 into DC power and supplies the DC power from the output terminal to the assembled battery 22. .

  A CHRB 28 is provided in the middle of the power lines PL3 and NL3. Based on the control signal C3 from the ECU 100, the CHRB 28 electrically connects the power lines PL1, NL1 and the charging device 120 (on state) or disconnects (off state).

  The communication device 92 is configured to transmit and receive data indicating predetermined information by exchanging signals with the portable terminal 110 carried by the user, for example. The communication device 92 transmits data from the mobile terminal 110 to the ECU 100 or transmits data from the ECU 100 to the mobile terminal 110. The communication device 92 enables communication based on a predetermined wireless communication standard with, for example, the mobile terminal 110 via a base station or without going through a base station. The predetermined wireless communication standard includes, for example, various mobile phone communication standards such as 3G, 4G, and 5G, or communication standards such as wireless LAN (Local Area Network) represented by IEEE802.11 and the like.

  Based on a control signal from ECU 100, air conditioner 140 adjusts the temperature of the interior of vehicle 1 to a temperature set by a user or a predetermined target temperature by performing either cooling or heating. The air conditioner 140 includes an air conditioner compressor (hereinafter referred to as an A / C compressor) (not shown). The A / C compressor operates using the battery pack 22 during cooling or the power supplied from the charging device 120 during external charging.

  Based on a control signal from ECU 100, outside air introduction switching damper 150 serves as an outside air introduction passage for introducing air from the outside of vehicle 1 as a passage for taking in air when air is blown into the room from the air outlet of air conditioner 140, and the vehicle. It is a switching device for selecting any one of the inside air circulation passages for introducing air from one room. For example, when the outside air introduction mode is selected, the ECU 100 controls the outside air introduction switching damper 150 so as to take in air outside the vehicle 1 from the outside air introduction passage. On the other hand, for example, when the inside air circulation mode is selected, the ECU 100 controls the outside air introduction switching damper 150 to take in indoor air from the inside air circulation passage.

  Cooling fan 160 introduces cooling air into the housing of solar battery 60 based on a control signal from ECU 100. The cooling fan 160 is provided on the downstream side of the outside air introduction switching damper 150. Therefore, when the outside air introduction mode is selected, the cooling fan 160 supplies air taken from the outside of the vehicle 1 to the solar battery 60 as cooling air. When the internal circulation mode is selected, the cooling fan 160 supplies air taken from the room of the vehicle 1 to the solar battery 60 as cooling air. The cooling fan 160 may be a blower fan used when air is blown into the room from the blower opening of the air conditioner 140, or may be a fan provided separately from the blower fan.

  The outside air introduction switching damper 150 and the cooling fan 160 constitute a cooling device that introduces outside air into the vehicle 1 to cool the equipment in the vehicle 1.

  Although not shown, the ECU 100 includes a CPU (Central Processing Unit), a memory that is a storage device, an input / output buffer, and the like. The ECU 100 controls various devices so that the vehicle 1 is in a desired operating state based on signals from each sensor and device, and a map and program stored in the memory. Various controls are not limited to processing by software, and can be processed by dedicated hardware (electronic circuit).

  The ECU 100 acquires the SOC of the solar battery 60 from the monitoring circuit 48. It should be noted that the process of calculating the SOC executed by the monitoring circuit 48 described above may be executed by the ECU 100. When the SOC of the solar battery 60 reaches the lower limit value, the ECU 100 operates the solar DC / DC converter 44 to charge the solar battery 60 using electric power output from the solar panel 50.

  When the SOC of solar battery 60 reaches the upper limit value, ECU 100 stops charging solar battery 60 and turns CHRA 26 on. The ECU 100 operates the high voltage DC / DC converter 42 to charge the assembled battery 22 using the power of the solar battery 60. Note that the ECU 100 may charge the assembled battery 22 by operating the solar DC / DC converter 44 in addition to the high-voltage DC / DC converter 42. The ECU 100 stops the operation of the high-voltage DC / DC converter 42 and turns off the CHRA 26 when the SOC of the solar battery 60 reaches the lower limit value or the SOC of the assembled battery 22 reaches the upper limit value. Then, charging of the assembled battery 22 is stopped.

  ECU 100 controls charging / discharging of solar battery 60 such that the SOC of solar battery 60 falls within the range between the upper limit value and the lower limit value by operating CHRA 26 and solar PCU 40 as described above.

  A contact sensor 132 and an indoor temperature sensor 170 are connected to the ECU 100. For example, when the plug 208 is connected to the inlet 130, the contact sensor 132 transmits a signal D1 indicating that the plug 208 is connected to the inlet 130 to the ECU 100. The indoor temperature sensor 170 detects the indoor temperature of the vehicle 1. The indoor temperature sensor 170 transmits a signal indicating the detected indoor temperature to the ECU 100.

  When it is detected by the contact sensor 132 that the plug 208 is connected to the inlet 130, the ECU 100 operates the charging device 120 while turning on each of the SMR 24 and the CHRB 28, so that the distribution power board 300 can be operated from the system power supply 300. The AC power supplied via 204 is converted to DC power, and plug-in charging for charging the assembled battery 22 is executed.

  For example, during plug-in charging, ECU 100 can execute pre-air conditioning control that operates air conditioner 140 to adjust the interior of vehicle 1 to an appropriate temperature. ECU 100 may execute pre-air conditioning control according to a user's request, or may execute pre-air conditioning control when the temperature in the room of vehicle 1 during plug-in charging exceeds a threshold value, The pre-air conditioning control may be executed from a time point that is a predetermined time before a time point at which plug-in charging is predicted to be completed.

  The plug 208 is supplied with AC power from the house 200. House 200 includes HEMS 202, switchboard 204, and home appliance 206. AC power is supplied to the switchboard 204 from the system power supply 300 outside the house 200. The switchboard 204 is configured to be able to supply AC power to the home appliance 206 and the vehicle 1.

  Home appliance 206 includes, for example, an electrical device such as a television, a refrigerator, and an air conditioner in house 200. The HEMS 202 is configured to monitor the power supplied from the switchboard 204 to each electrical device and adjust the amount of power supplied to each electrical device. For example, the HEMS 202 predicts the current power supply / demand situation from the current power usage history. The HEMS 202 has a built-in communication device, and is configured to be able to exchange (communicate) the signal C5 with the communication device 92 of the vehicle 1. Communication between the HEMS 202 and the communication device 92 is performed based on a predetermined communication standard. Since the predetermined communication standard is the same as the communication standard for communication performed between portable terminal 110 and communication device 92 described above, detailed description thereof will not be repeated.

  Based on the control signal from HEMS 202, switchboard 204 supplies a part or all of the power from system power supply 300 to home appliance 206 or vehicle 1 within a range that falls within the upper limit of power that can be supplied.

  During plug-in charging, the HEMS 202 can additionally supply power to the plug 208 from the switchboard 204 via the communication device 92 at predetermined time intervals or in response to a request from the ECU 100. Information related to (hereinafter referred to as surplus power) is transmitted to ECU 100. For example, the HEMS 202 calculates the difference between the upper limit value of power that can be supplied to the vehicle 1 and the home appliance 206 and the power supplied to the vehicle 1 and the home appliance 206 as surplus power.

  Since sunlight enters the room of the vehicle 1 having such a configuration in the daytime or the like, the temperature may be higher than the room temperature depending on the location. Therefore, for example, in the solar battery 60 provided in the room of the vehicle 1, even if the indoor temperature is adjusted using the air conditioner 140 or the like by the pre-air conditioning control, the temperature of the solar battery 60 becomes higher than the indoor temperature and deteriorates. May be promoted.

  Therefore, in the present embodiment, ECU 100 determines that air conditioner 140 and surplus power are higher than threshold value Pa when the temperature of solar battery 60 is higher than threshold value Ta during plug-in charging. The cooling fan 160 is operated. ECU 100 introduces outside air into the room of vehicle 1 to cool the equipment in the room of vehicle 1 when the surplus power is lower than threshold value Pa and higher than threshold value Pb (<Pa). The outside air introduction switching damper 150 and the cooling fan 160 are operated.

  If it does in this way, it can control that solar battery 60 maintains a high temperature state higher than threshold Ta. Therefore, it is possible to suppress the deterioration of the solar battery 60 from being promoted.

  Hereinafter, a control process executed by the ECU 100 will be described with reference to FIG. FIG. 3 is a flowchart showing a control process executed by ECU 100 mounted on vehicle 1 according to the present embodiment.

  In step (hereinafter, step is referred to as “S”) 100, ECU 100 determines whether or not plug-in charging is in progress. ECU 100 determines that plug-in charging is being performed, for example, when plug 208 is connected to inlet 130, SMR 24 and CHRB 28 are on, and charging device 120 is operating. Also good. If it is determined that plug-in charging is in progress (YES in S100), the process proceeds to S102.

  In S102, ECU 100 determines whether or not the temperature inside the vehicle 1 is equal to or higher than threshold value Ta. The threshold value Ta is, for example, a temperature that promotes deterioration of the solar battery 60 in the vehicle 1 and is a predetermined value. If it is determined that the temperature in the room of vehicle 1 is equal to or higher than threshold value Ta (YES in S102), the process proceeds to S106.

  If it is determined that the temperature inside the vehicle 1 is not equal to or higher than threshold value Ta (NO in S102), the process proceeds to S104. In S104, ECU 100 determines whether or not battery temperature TBs of solar battery 60 is equal to or higher than threshold value Ta. When it is determined that battery temperature TBs of solar battery 60 is equal to or higher than threshold value Ta (YES in S104), the process proceeds to S106.

  In S106, ECU 100 determines whether or not the current time zone is a time zone with surplus power. The time zone with surplus power is, for example, a predetermined time zone, and may be stored in the ECU 100 in advance in a memory or the like. Alternatively, when a time zone with surplus power is set in HEMS 202, ECU 100 receives information about the time zone with surplus power from HEMS 202, and the current time zone is based on the received information. You may determine whether it is a certain time slot | zone. The HEMS 202 may set a time zone with surplus power according to the season, or calculates an average value of the surplus power until immediately before every predetermined time, and becomes a time when the average value is equal to or greater than a predetermined value. The band may be set as a time slot with surplus power. If it is determined that the current time zone is a time zone with surplus power (YES in S106), the process proceeds to S108.

  In S108, ECU 100 determines whether or not the surplus power is greater than or equal to threshold value Pa. The threshold value Pa is, for example, electric power that can operate the air conditioner 140. If it is determined that surplus power is equal to or greater than threshold value Pa (YES in S108), the process proceeds to S110.

  In S110, ECU 100 executes an inquiry process. The inquiry process is a process of inquiring whether or not the air conditioner 140 is to be operated during plug-in charging (whether or not the air conditioner 140 is turned on) during the plug-in charging. More specifically, ECU 100 transmits a control signal for causing mobile terminal 110 to display a screen for inquiring whether or not to operate air conditioner 140 on mobile terminal 110 via communication device 92. When the portable terminal 110 receives the control signal, the portable terminal 110 displays a screen asking whether to operate the air conditioner 140 on the display. For example, the mobile terminal 110 displays options on the display and waits until a user operation is performed or a predetermined time elapses. When there is a user operation, information corresponding to the option selected by the user is transmitted to the vehicle 1. When the predetermined time has elapsed, information indicating that no operation has been performed until the predetermined time has elapsed is transmitted to the vehicle 1.

  In S112, ECU 100 determines whether or not there is a reply indicating that air conditioner 140 is to be turned on until a predetermined time elapses after the inquiry process is started (or after a signal is transmitted to portable terminal 110). Determine. For example, ECU 100 determines that there is a reply when data indicating a reply indicating that air conditioner 140 is to be turned on is received from portable terminal 110 via communication device 92 before a predetermined time elapses. If it is determined that there is a reply to turn on air conditioner 140 (YES in S112), the process proceeds to S114.

  In S114, ECU 100 operates air conditioner 140. ECU 100 further operates outside air introduction switching damper 150 so as to select the inside air circulation passage. ECU 100 further operates cooling fan 160. For example, ECU 100 continues the operation of air conditioner 140 and the operation of cooling fan 160 until a predetermined time elapses after the operation is started. ECU 100 stops air conditioner 140 and cooling fan 160 when a predetermined time has elapsed. At this time, the ECU 100 may select a mode selected immediately before the operation of the cooling fan 160 out of the outside air introduction mode and the inside air circulation mode.

  In S116, ECU 100 determines whether or not the surplus power is smaller than threshold value Pa and equal to or larger than threshold value Pb. As the threshold value Pb, a value smaller than the threshold value Pa and capable of operating the cooling fan 160 with at least surplus power is set. If it is determined that surplus power is smaller than threshold value Pa and greater than or equal to threshold value Pb (YES in S116), the process proceeds to S118. If it is determined that there is no reply to turn on air conditioner 140 until the predetermined time has elapsed (NO in S112), the process proceeds to S108.

  In S118, ECU 100 operates outside air introduction switching damper 150 and operates cooling fan 160 to select the outside air introduction passage. ECU 100 continues the operation of cooling fan 160 until a predetermined time elapses after the operation is started, for example. ECU 100 stops cooling fan 160 when a predetermined time has elapsed. At this time, the ECU 100 may select a mode selected immediately before the operation of the cooling fan 160 out of the outside air introduction mode and the inside air circulation mode.

  If it is determined that the plug-in charging is not in progress (NO in S100), if it is determined that it is not a time zone with surplus power (NO in S106), or the surplus power is smaller than threshold Pb. (NO in S116), this process is terminated.

  An operation of vehicle 1 according to the present embodiment based on the above-described structure and flowchart will be described.

  When plug 208 is connected to inlet 130 by the user, plug-in charging is started (YES in S100). If sunlight enters the room of the vehicle 1 during plug-in charging, the temperature in the room of the vehicle 1 rises.

  Even if the temperature in the room of vehicle 1 is lower than threshold value Ta (NO in S102), if battery temperature TBs of solar battery 60 is equal to or higher than threshold value Ta, it is a time zone with surplus power. It is determined whether or not (S106). If it is determined that it is a time zone with surplus power (YES in S106) and surplus power is equal to or greater than threshold Pa, an inquiry process is executed (S110).

  Therefore, a screen asking whether to operate the air conditioner 140 during plug-in charging is displayed on the display of the mobile terminal 110 carried by the user.

  If the user replies that the air conditioner 140 is operated by operating the portable terminal 110 before the predetermined time has elapsed (YES in S112), the air conditioner 140 is operated and the cooling fan 160 is operated (S114). ). Therefore, the temperature inside the vehicle 1 is lowered and the temperature of the solar battery 60 is lowered. When a predetermined time has elapsed, both air conditioner 140 and cooling fan 160 are stopped.

  On the other hand, when there is no reply to operate air conditioner 140 until the predetermined time has elapsed (NO in S112), or when surplus power is lower than threshold value Pa and higher than threshold value Pn (YES in S116), the outside air introduction switching damper 150 is operated so that the outside air introduction passage is selected, and the cooling fan 160 is operated (S118). Therefore, since the outside air is introduced from the outside air introduction passage by the operation of the cooling fan 160, the temperature of the room of the vehicle 1 is lowered and the solar battery 60 is changed more slowly than when the air conditioner 140 is operated. The temperature will decrease. When a predetermined time has elapsed, the cooling fan 160 is stopped.

  As described above, according to the present embodiment, when the temperature in the vehicle 1 or the temperature of the solar battery 60 is equal to or higher than the threshold value Ta during plug-in charging, the surplus power is equal to or higher than the threshold value Pa. Since the air conditioner 140 and the cooling fan 160 operate at a certain time, the solar battery 60 is prevented from being maintained at a high temperature higher than the threshold value Ta. Therefore, it is possible to suppress the deterioration of the solar battery 60 from being promoted. Therefore, it is possible to provide a vehicle that suppresses deterioration of a power storage device provided in the vehicle interior.

Hereinafter, modifications will be described.
In the above-described embodiment, when the surplus power is greater than or equal to the threshold value Pa, the inquiry process is executed, and the air conditioner 140 and the cooling fan 160 are operated only when there is a reply to operate the air conditioner. However, for example, when the surplus power is greater than or equal to the threshold value Pa, the air conditioner 140 and the cooling fan 160 may be operated without executing the inquiry process.

  In the above-described embodiment, when there is a reply that the air conditioner 140 is operated, the air conditioner 140 and the cooling fan 160 are operated until a predetermined time elapses. The air conditioner 140 and the cooling fan 160 may be operated until the temperature falls below the threshold value Tb that is smaller than the threshold value Ta, or until the surplus power becomes smaller than the threshold value Pa. 160 may be operated.

  In the above-described embodiment, when the surplus power is smaller than the threshold value Pa and greater than or equal to the threshold value Pb, or when there is no reply to operate the air conditioner 140, the outside air introduction switching damper is operated and the cooling is performed. Although it has been described that the fan 160 is operated until a predetermined time elapses, for example, the cooling fan 160 is operated until the temperature of the solar battery 60 becomes equal to or lower than the threshold value Tb lower than the threshold value Ta. Alternatively, the cooling fan 160 may be operated until the surplus power becomes smaller than the threshold value Pb.

  In the above-described embodiment, the HEMS 202 and the communication device 92 have been described as communicating by wireless communication. However, for example, communication may be performed by wired communication using a power line.

  In the above-described embodiment, when there is no reply to operate the air conditioner 140, or when the surplus power is lower than the threshold value Pa and equal to or higher than the threshold value Pb, the outside air introduction passage is selected. As described above, the outside air introduction switching damper is operated and the cooling fan 160 is operated. However, for example, a predetermined window is lowered by a predetermined amount so as to communicate with indoor outside air and the cooling fan 160 is operated. May be.

  In the above-described embodiment, the case where the temperature sensor 62 is provided in one place in the solar battery 60 has been described as an example, but a plurality of the temperature sensors 62 may be provided in the solar battery 60. The temperature sensor 62 may be provided in each cell of the solar battery 60, or may be provided in the solar battery 60 at a predetermined cell or at a predetermined distance. In this case, ECU 100 may detect the highest value among the detection results of the plurality of temperature sensors as battery temperature TBs, or may detect the average value of the detection results of the temperature sensor as battery temperature TBs. Good.

In addition, you may implement the above-mentioned modification combining all or one part suitably.
The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present disclosure 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.

  1 Vehicle, 2 Drive Wheel, 4 Power Transmission Gear, 6 Motor Generator, 20 Battery Pack, 22 Battery Assembly, 30 PCU, 42 High Voltage DC / DC Converter, 44 Solar DC / DC Converter, 46 Auxiliary DC / DC Converter, 48 Monitoring circuit, 50 solar panel, 60 solar battery, 62 temperature sensor, 64 voltage sensor, 66 current sensor, 70 auxiliary battery, 92 communication device, 100 ECU, 110 portable terminal, 120 charging device, 130 inlet, 132 contact sensor, 140 air conditioner, 150 outside air introduction switching damper, 160 cooling fan, 170 indoor temperature sensor, 200 house, 202 HEMS, 204 switchboard, 206 home appliance, 208 plug, 300 system power supply.

Claims (1)

A solar cell that converts light energy into electric power;
A first power storage device that is provided in a vehicle interior and is charged using electric power output from the solar cell;
A second power storage device that is charged using at least one of the power of the first power storage device and the power of the external power source of the vehicle;
An air conditioner for adjusting the temperature of air in the vehicle interior;
A cooling device for introducing outside air into the vehicle interior to cool equipment in the vehicle interior;
A control device for controlling the air conditioner and the cooling device;
When the temperature of the first power storage device is higher than the first value during charging of the second power storage device using the external power source,
When the surplus power that can be additionally supplied from the external power source is higher than a second value, the air conditioner is operated,
A vehicle that operates the cooling device in a state in which the air conditioner is stopped when the surplus power is lower than the second value and higher than a third value.

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