Battery temperature adjustment system and battery temperature adjustment method

Abstract

To communicate a plurality of settings for battery temperature adjustment in an easy-to-understand manner, thereby suppressing a deterioration in usability.SOLUTION: A battery temperature adjustment system includes: a cooling / heating device for adjusting a temperature of a battery; a processor; and a display device. Setting modes of the cooling / heating device include: a navigation-triggered temperature adjustment mode, as a setting in which, with a fact, as a trigger, that a travel route of an electric vehicle includes a charging facility, the temperature of the battery is adjusted to be within a first temperature range suitable for charging upon arrival at the facility; and an operation-triggered temperature adjustment mode, as a setting in which, when there is received predetermined operation by a user of the electric vehicle for adjusting the temperature of the battery within a second temperature range suitable for charging / traveling, the temperature of the battery is adjusted within the second temperature range. The display device includes a common element in display in each of the navigation / operation-triggered temperature adjustment modes, and adds a specific element to the common element in one of the navigation / operation-triggered temperature adjustment modes. The processor controls the display device such that: the common element is displayed in each of the navigation / operation-triggered temperature adjustment modes; and the specific element is displayed in the one thereof.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to a battery temperature control system and a battery temperature control method, and more particularly to a battery temperature control system that adjusts the temperature of an electric storage device mounted on a vehicle, and a battery temperature control method in the battery temperature control system. [Background technology]

[0002] Conventionally, when a charging facility is set as the vehicle's destination, there has been a technology that pre-adjusts the temperature (hereinafter referred to as "temperature control") of the onboard battery so that it reaches a temperature suitable for charging before arriving at the destination (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-044887 Summary of the Invention [Problem to be solved by the invention]

[0004] In the technology of Patent Document 1, the temperature of the vehicle battery is controlled in accordance with the destination setting made through the operation of the car navigation system. On the other hand, the temperature of the vehicle battery may also be controlled in response to the user's operation of an on-board switch or the like when desired. In this way, both types of temperature control are for controlling the temperature of the vehicle battery. There is room for improvement in how to properly use these two types of temperature control.

[0005] This disclosure has been made to solve the above-mentioned problems, and its purpose is to provide a battery temperature control system and a battery temperature control method that can suppress a decrease in usability by clearly communicating to the user multiple settings for adjusting the temperature of the storage device. [Means for solving the problem]

[0006] A battery temperature control system according to the present disclosure adjusts the temperature of a power storage device mounted on a vehicle, and includes a temperature control device that adjusts the temperature of the power storage device, a processor that controls the temperature control device, and a display device that displays setting modes of the temperature control device. The setting modes of the temperature control device include a first mode in which, when the vehicle's travel route includes a facility where the power storage device can be charged, the temperature control device adjusts the power storage device to a first temperature range suitable for charging upon arrival at the facility, and a second mode in which the temperature control device adjusts the power storage device to a second temperature range suitable for charging or traveling when a predetermined operation is received from a user of the vehicle to adjust the power storage device to a second temperature range suitable for charging or traveling. The display device includes common elements in displays in the first mode and the second mode, and adds specific elements to the common elements in either the first mode or the second mode. The processor controls the display device to display the common elements when the setting mode is the first mode or the second mode, and to display the specific element when the setting mode is either the first mode or the second mode.

[0007] With this configuration, when the vehicle is in a first mode in which the temperature of the power storage device is adjusted when the driving route includes a facility where the power storage device can be charged, and a second mode in which the temperature of the power storage device is adjusted in response to a predetermined operation by the user, a common element is displayed on the display device in both modes, and a specific element is displayed when the vehicle is in either of the two modes.As a result, a battery temperature control system can be provided that can suppress a decrease in usability by clearly communicating to the user multiple settings for adjusting the temperature of the power storage device.

[0008] The processor may control the temperature adjustment device to adjust the temperature of the power storage device in accordance with the set mode, and may give priority to the second mode when a predetermined operation is accepted when the set mode is the first mode.

[0009] According to this configuration, when the first mode is in which the temperature of the power storage device is adjusted because the driving route includes a facility where the power storage device can be charged, and a predetermined operation by the user to adjust the temperature of the power storage device is received, priority is given to the second mode in which the temperature of the power storage device is adjusted in accordance with the predetermined operation by the user. As a result, the temperature of the power storage device can be quickly adjusted in accordance with the user's operation to adjust the temperature of the power storage device.

[0010] The processor may control the temperature adjustment device to adjust the temperature of the power storage device according to the set mode, and if a specified operation is accepted when the set mode is the first mode, the processor may reject the specified operation and maintain the first mode.

[0011] According to this configuration, when the vehicle is in the first mode in which the temperature of the power storage device is adjusted in response to a travel route including a facility where the power storage device can be charged, if a predetermined operation by the user to adjust the temperature of the power storage device is accepted, the predetermined operation is rejected, and the first mode is maintained without switching to the second mode in which the temperature of the power storage device is adjusted in accordance with the predetermined operation by the user. As a result, the power storage device can be brought into a temperature range suitable for charging when the vehicle arrives at a facility where the power storage device can be charged, and additional power consumption due to adjustment of the temperature of the power storage device in accordance with a user operation to adjust the temperature of the power storage device can be suppressed.

[0012] The processor may control the temperature adjustment device to adjust the temperature of the power storage device according to the set mode, and may maintain the second mode if the travel route includes a facility when the set mode is the second mode.

[0013] According to this configuration, when the vehicle is in the second mode in which the temperature of the power storage device is adjusted in response to a predetermined user operation and the driving route includes a facility where the power storage device can be charged, the vehicle is maintained in the second mode without switching to the first mode in which the temperature of the power storage device is adjusted in response to the driving route including the facility where the power storage device can be charged. As a result, the temperature of the power storage device can be quickly adjusted in response to a user operation for adjusting the temperature of the power storage device.

[0014] The processor may control the temperature adjustment device to adjust the temperature of the power storage device according to the set mode, and when the set mode is the second mode and the travel route includes a facility, prioritize the first mode.

[0015] According to this configuration, when the vehicle is in the second mode in which the temperature of the power storage device is adjusted in response to a predetermined user operation and the driving route includes a facility where the power storage device can be charged, the first mode in which the temperature of the power storage device is adjusted in response to the driving route including the facility where the power storage device can be charged takes priority over the second mode. As a result, the power storage device can be brought into a temperature range suitable for charging when the vehicle arrives at the facility where the power storage device can be charged, and additional power consumption due to adjustment of the temperature of the power storage device in response to a user operation to adjust the temperature of the power storage device can be suppressed.

[0016] According to another aspect of the present disclosure, a battery temperature control method is a method for adjusting the temperature of a battery in a battery temperature control system that adjusts the temperature of a power storage device mounted on a vehicle. The battery temperature control system includes a temperature control device that adjusts the temperature of the power storage device, a processor that controls the temperature control device, and a display device that displays setting modes of the temperature control device. The setting modes of the temperature control device include a first mode in which, when a vehicle's travel route includes a facility where the power storage device can be charged, the temperature control device adjusts the power storage device to be within a first temperature range suitable for charging upon arrival at the facility, and a second mode in which the temperature control device adjusts the power storage device to be within a second temperature range suitable for charging or traveling when a predetermined operation of a user of the vehicle is received. The display device includes common elements in displays in the first mode and the second mode, and adds a specific element to the common elements in either the first mode or the second mode. The battery temperature control method includes a step in which a processor controls a display device to display common elements when the set mode is a first mode or a second mode, and a step in which a processor controls the display device to display specific elements when the set mode is one of the first and second modes.

[0017] According to this configuration, it is possible to provide a battery temperature adjustment method that can suppress a decrease in usability by informing the user of a plurality of settings for adjusting the temperature of the power storage device in an easy-to-understand manner. [Effects of the Invention]

[0018] According to this disclosure, it is possible to provide a battery temperature control system and a battery temperature control method that can suppress a decrease in usability by clearly communicating to the user a plurality of settings for adjusting the temperature of the power storage device. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a diagram showing the overall configuration of an electric vehicle according to this embodiment; [Figure 2] 5 is a flowchart showing the flow of a battery temperature adjustment setting process in the first embodiment. [Figure 3] FIG. 10 illustrates an indicator for a preconditioning switch in this embodiment. [Figure 4] 4 is a flowchart showing the flow of a battery temperature adjustment execution process in this embodiment. [Figure 5] 10 is a flowchart showing the flow of a battery temperature adjustment setting process in a second embodiment. [Figure 6] 10 is a flowchart showing the flow of a battery temperature adjustment setting process in a third embodiment. [Figure 7] 10 is a flowchart showing the flow of a battery temperature adjustment setting process in a fourth embodiment. [Figure 8] 13 is a flowchart showing the flow of a battery temperature adjustment setting process in a fifth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0020] 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 designated by the same reference numerals, and description thereof will not be repeated.

[0021] 1 is an overall configuration diagram of an electrically powered vehicle 1 according to this embodiment. In this embodiment, the electrically powered vehicle 1 is, for example, an electric vehicle (BEV: Battery Electric Vehicle). The electrically powered vehicle 1 includes a motor generator (MG) 10, which is a rotating electric machine, a power transmission gear 20, drive wheels 30, a power control unit (PCU) 40, a system main relay (SMR) 50, a battery 100, a monitoring unit 200, and an electronic control unit (ECU) 300.

[0022] The MG 10 is, for example, an interior permanent magnet synchronous motor (IPM motor) that functions as both an electric motor (motor) and a generator. The output torque of the MG 10 is transmitted to drive wheels 30 via a power transmission gear 20 that includes a reducer, a differential gear, and the like.

[0023] When braking the electric vehicle 1, the MG 10 is driven by the drive wheels 30 and operates as a generator. As a result, the MG 10 also functions as a braking device that performs regenerative braking to convert the kinetic energy of the electric vehicle 1 into electric power. The regenerative power generated by the regenerative braking force of the MG 10 is stored in the battery 100.

[0024] PCU 40 is a power conversion device that converts power bidirectionally between MG 10 and battery 100. PCU 40 includes, for example, an inverter and a converter that operate based on a control signal from ECU 300. PCU 40 may be configured without the converter.

[0025] SMR 50 is electrically connected to a power line connecting battery 100 and PCU 40. When SMR 50 is closed (ON) (conductive) in response to a control signal from ECU 300, power can be exchanged between battery 100 and PCU 40. On the other hand, when SMR 50 is opened (OFF) (disconnected) in response to a control signal from ECU 300, the electrical connection between battery 100 and PCU 40 is interrupted.

[0026] The battery 100 stores power for driving the MG 10. The battery 100 is a rechargeable DC power supply (secondary battery) and is configured by stacking a plurality of unit cells (battery cells) and electrically connecting them in series, for example. The battery 100 corresponds to a storage battery. The unit cells are configured, for example, by lithium-ion batteries. The unit cells may be nickel-metal hydride batteries or all-solid-state batteries.

[0027] The monitoring unit 200 includes a voltage detection unit, a current sensor, and a temperature detection unit. The voltage detection unit detects the voltage VB of the battery. The current sensor detects the current IB input to and output from the battery 100. The temperature detection unit 230 detects the temperature TB of the battery 100. Each detection unit outputs the detection result to the ECU 300.

[0028] Electrically powered vehicle 1 is equipped with DC inlet 60 and AC inlet 80, and is capable of charging (external charging) battery 100 from EVSE (charging equipment) 2, which includes an external DC power supply 400 or an external AC power supply 500. DC inlet 60 is configured to be connectable to a connector 420 provided at the tip of a charging cable 410 of external DC power supply (EVSE) 400. Charging relay 70 is electrically connected to a power line connecting DC inlet 60 and battery 100. Charging relay 70 switches between supplying and cutting off power between DC inlet 60 and battery 100 in response to a control signal from ECU 300. When charging relay 70 is closed, external charging (fast charging) of battery 100 is performed.

[0029] The AC inlet 80 is configured to allow connection to a connector 520 provided at the tip of a charging cable 510 of an external AC power source (EVSE) 500. An on-board charger 130 is provided on the power line between the AC inlet 80 and the battery 100, and converts AC power supplied from the external AC power source into DC power and also converts the power into a voltage that can charge the battery 100. A charging relay 90 is electrically connected to the power line connecting the on-board charger 130 and the battery 100. The charging relay 90 switches between supplying and cutting off power between the on-board charger 130 and the battery 100 in response to a control signal from the ECU 300. Closing the charging relay 90 performs external charging (normal charging) of the battery 100. When charging the electric vehicle 1 (battery 100), external charging is performed using either an external DC power source 400 or an external AC power source 500.

[0030] The ECU 300 includes a CPU (Central Processing Unit) 301, a memory (including, for example, a ROM (Read Only Memory) and a RAM (Random Access Memory)) 302, and a communication unit 303. The ECU 300 controls each device so that the electric vehicle 1 is in a desired state, based on information such as signals received from the monitoring unit 200, signals from various sensors (not shown) (for example, an accelerator position signal, a vehicle speed signal, etc.), and maps and programs stored in the memory 302. The communication unit 303 includes a communication I / F (interface) for wireless communication with the network 900 and the user terminal 3. The communication unit 303 may include a TCU (Telematics Control Unit) and / or a DCM (Data Communication Module) for wireless communication. The ECU 300 also controls a cooling / heating device 800, which will be described later.

[0031] Navigation device 600 calculates the current position (vehicle position) based on map data including information such as the position and output of EVSE (for example, DC power supply 400, AC power supply 500) and GPS (Global Positioning System) information. Navigation device 600 is configured to include a CPU 601, memory 602, and communication unit 603 similar to ECU 300, as well as a GPS 604, and is realized by executing a program stored in the memory. Navigation device 600 provides route guidance to a destination set by the user. It is also possible to set intermediate points on the route to the destination. Note that the map data may be configured to be acquired by communication via external server 5 and network 900.

[0032] The HMI (Human Machine Interface) device 700 includes an input device and a display device. In addition to a CPU 701, a memory 702, and a communication unit 703 similar to those of the ECU 300, the HMI device 700 also includes a touch panel display 704 that functions as an input device and a display device, and the touch panel display 704 also serves as an input device and a display device of the navigation device 600.

[0033] The user terminal 3 is configured to be portable by the user. The user terminal 3 is a mobile terminal carried and operated by the user (vehicle manager) of the electric vehicle 1. In this embodiment, a smartphone equipped with a touch panel display is used as the user terminal 3. Any terminal that can be carried by the user of the electric vehicle 1 can be used as the user terminal 3. For example, a laptop, a tablet terminal, a portable game console, or a wearable device (such as a smart watch, smart glasses, or smart gloves) can also be used as the user terminal 3. The user terminal 3 can communicate with the communication unit 303, for example, by short-range wireless communication, and can also communicate with the external server 5 via the network 900.

[0034] The electric vehicle 1 is equipped with a cooling / heating device 800. The cooling / heating device 800 adjusts the temperature of the battery 100. The cooling / heating device 800 is composed of a battery cooling section (battery cooling system) 801 and a battery heating section (battery heating system) 802. The cooling / heating device 800 may be configured to be able to cool / heat the battery 100, and may be air-cooled (heat exchange using a gas as a medium) or liquid-cooled (heat exchange using a liquid as a medium), and may utilize exhaust heat from the MG 10 or the PCU 40, or may utilize heat generated by charging and discharging the battery 100.

[0035] The battery 100 has an appropriate charging power (charging current) depending on the temperature TB of the battery 100, and there is a concern that charging with a current exceeding the appropriate charging power may accelerate deterioration of the battery 100. Furthermore, charging with a current exceeding the power that the battery 100 can accept (allowable power) may result in a decrease in charging efficiency and a decrease in power consumption during charging. If the charging power (charging current) is limited when the temperature TB is high or low in order to suppress deterioration of the battery 100, the charging time may become longer depending on the state of the temperature TB. For this reason, when external charging of the battery 100 is expected, it is preferable to adjust the temperature of the battery 100 to an appropriate temperature range beforehand before starting charging.

[0036] Conventionally, there has been a technology in which, when a charging facility where charging equipment such as an EVSE 2 is installed is set as the destination of an electrically powered vehicle 1, the temperature of the battery 100 is adjusted in advance to be within a temperature range suitable for charging before the destination is reached. In such a technology, the temperature of the battery 100 is controlled in accordance with the setting of the destination by operating the navigation device 600. On the other hand, the temperature of the battery 100 may be controlled in response to the user operating an in-vehicle switch or the like if desired. In this way, both types of temperature control are controls for controlling the temperature of the battery 100. There is room for improvement in how to properly use these two types of temperature control.

[0037] [First embodiment] The setting modes of the cooling / warming device 800 include a navigation-triggered temperature control mode, which is a setting that adjusts the temperature of the battery 100 to a first temperature range suitable for charging when the electric vehicle 1 arrives at a facility where the battery 100 can be charged, when the driving route of the electric vehicle 1 includes the facility, and an operation-triggered temperature control mode, which is a setting that adjusts the battery 100 to a second temperature range when a predetermined operation is received from the user of the electric vehicle 1 to adjust the battery 100 to a second temperature range suitable for charging or driving. The CPU 301 of the ECU 300 controls the cooling / warming device 800 to adjust the temperature of the battery 100 according to the setting mode, and prioritizes the operation-triggered temperature control mode when a predetermined operation is received when the setting mode is the navigation-triggered temperature control mode.

[0038] As a result, when the navigation-triggered temperature control mode, which adjusts the temperature of battery 100 when the driving route includes a facility where battery 100 can be charged, is in effect, if a predetermined user operation for adjusting the temperature of battery 100 is accepted, priority is given to the operation-triggered temperature control mode, which adjusts the temperature of battery 100 in response to the predetermined user operation. As a result, the temperature of battery 100 can be quickly adjusted in response to the user operation for adjusting the temperature of battery 100.

[0039] As shown in FIG. 1, the electric vehicle 1 further includes a preconditioning switch 304 that displays the setting mode of the cooling / heating device 800. The preconditioning switch 304 is, for example, a push button switch having an indicator on its operation surface. As shown in FIG. 3, which will be described later, the preconditioning switch 304 includes common elements in the display for the navigation-triggered temperature control mode and the operation-triggered temperature control mode, and adds specific elements to the common elements for either the navigation-triggered temperature control mode or the operation-triggered temperature control mode. The CPU 301 of the ECU 300 controls the preconditioning switch 304 to display the common elements when the setting mode is the navigation-triggered temperature control mode or the operation-triggered temperature control mode, and to display the specific elements when the setting mode is either the navigation-triggered temperature control mode or the operation-triggered temperature control mode.

[0040] As a result, when the vehicle is in a navigation-triggered temperature control mode, which adjusts the temperature of the battery 100 when the driving route includes a facility where the battery 100 can be charged, and an operation-triggered temperature control mode, which adjusts the temperature of the battery 100 in response to a predetermined operation by the user, a common element is displayed on the preconditioning switch 304 in both modes, and a specific element is displayed when the vehicle is in either of the two modes. As a result, a decrease in usability can be suppressed by clearly conveying the multiple settings for adjusting the temperature of the battery 100 to the user.

[0041] 2 is a flowchart showing the flow of the battery temperature adjustment setting process in the first embodiment. Referring to Fig. 2, the battery temperature adjustment setting process is called from a higher-level process by CPU 301 of ECU 300 at predetermined intervals and executed.

[0042] First, CPU 301 of ECU 300 determines whether the setting mode of cooling / heating device 800 is currently set to the navigation-triggered temperature control mode (step S111). If it is determined that the setting mode is currently set to the navigation-triggered temperature control mode (YES in step S111), CPU 301 determines whether preconditioning switch 304 has been turned on (step S112).

[0043] If it is determined that the preconditioning switch 304 has been turned on (YES in step S112), the CPU 301 switches the setting mode of the cooling / heating device 800 from a navigation-triggered temperature control mode to an operation-triggered temperature control mode (step S113), and controls the preconditioning switch 304 so that the indicator of the preconditioning switch 304 is switched from an automatic temperature control indication to an on temperature control indication (step S114).

[0044] FIG. 3 is a diagram showing an indicator of the preconditioning switch 304 in this embodiment. Referring to FIG. 3, FIG. 3(A) shows a temperature control on display. The temperature control on display indicates that the set mode of the cooling / heating device 800 is an operation-triggered temperature control mode. FIG. 3(B) shows an automatic temperature control display. The automatic temperature control display indicates that the set mode of the cooling / heating device 800 is a navigation-triggered temperature control mode. FIG. 3(C) shows a temperature control off display. The temperature control off display indicates that the set mode of the cooling / heating device 800 is a temperature control off mode, in which temperature control by the cooling / heating device 800 is not performed.

[0045] The temperature control on display, the automatic temperature control display, and the temperature control off display, which indicate the set mode of the cooling / heating device 800, include a first common element. In this embodiment, the first common element is an image representing the battery 100, such as a picture of a dry cell, but is not limited to this and may be other images. The temperature control on display and the automatic temperature control display, which indicate a set mode in which temperature control can be performed, also include a second common element. In this embodiment, the second common element is an image representing that the temperature of the battery 100 is being controlled, such as three vertical wavy lines, but is not limited to this and may be other images. A specific element is added to the common element of either the temperature control on display or the automatic temperature control display (in this embodiment, the automatic temperature control display). In this embodiment, the specific element is an image representing the navigation-triggered temperature control mode, such as the word "Auto," but is not limited to this and may be other images. When the temperature control is on or automatic, the operation panel is illuminated from the back with an LED lamp, while when the temperature control is off, the LED lamp is turned off.

[0046] 2, if it is determined that the mode is not the navigation-triggered temperature adjustment mode (NO in step S111), CPU 301 determines whether the setting mode of cooling / heating device 800 is set to the temperature adjustment off mode (step S121).If it is determined that the setting mode is set to the temperature adjustment off mode (YES in step S121), CPU 301 determines whether preconditioning switch 304 has been turned on (step S122).

[0047] If it is determined that the preconditioning switch 304 has been turned on (YES in step S122), the CPU 301 switches the setting mode of the cooling / heating device 800 from the temperature control off mode to the operation-triggered temperature control mode (step S123), and controls the preconditioning switch 304 so that the indicator of the preconditioning switch 304 is switched from the temperature control off display shown in Figure 3(C) to the temperature control on display shown in Figure 3(A) (step S124).

[0048] If it is determined in step S112 that the preconditioning switch 304 has not been turned on (NO in step S112), if it is determined after step S114 that the temperature control off mode is not being set (NO in step S121), if it is determined in step S122 that the preconditioning switch 304 has not been turned on (NO in step S122), or after step S124, the CPU 301 returns the processing to be executed to the higher-level processing that called this battery temperature control setting processing.

[0049] 4 is a flowchart showing the flow of the battery temperature adjustment execution process in this embodiment. Referring to FIG. 4, the battery temperature adjustment execution process is called by CPU 301 of ECU 300 from a higher-level process at predetermined intervals and executed.

[0050] First, CPU 301 of ECU 300 determines whether the setting mode of cooling / heating device 800 is set to navigation-triggered temperature control mode (step S161). If it is determined that navigation-triggered temperature control mode is set (YES in step S161), CPU 301 determines whether the current time is the timing to start temperature control (step S162). In navigation-triggered temperature control mode, the timing to start temperature control is the timing to start temperature control so that battery 100 falls within a temperature range suitable for charging when electric vehicle 1 arrives at a facility that is included in the travel route of electric vehicle 1 and that can charge battery 100. For example, the time to start temperature control = estimated arrival time at the facility - time required for temperature control, and the time required for temperature control is (target temperature within a temperature range suitable for charging battery 100 - current temperature of battery 100) / rate of change in temperature of battery 100 per unit time. If the current time is before the time when temperature control is to begin, the cooling or heating may be started from the current time, and the rate of change may be slowed down so that the battery 100 reaches the target temperature at the scheduled time of arrival at the facility.

[0051] If it is determined that it is time to start temperature control (YES in step S162), CPU 301 controls cooling / heating device 800 to start temperature control at a rate that will bring battery 100 to a target temperature suitable for charging at a facility that can charge battery 100, which is the destination / waypoint on the driving route (step S163).

[0052] If it is determined that it is not time to start temperature control (NO in step S162), or after step S163, CPU 301 determines whether temperature control is in progress (step S164). If it is determined that temperature control is in progress (YES in step S164), CPU 301 determines whether charging of battery 100 has started (step S166).

[0053] If it is determined that charging of battery 100 has started (YES in step S166), CPU 301 terminates the temperature adjustment control by cooling / heating device 800 (step S167), switches the setting mode of cooling / heating device 800 from navigation-triggered temperature adjustment mode to temperature adjustment off mode (step S168), and controls preconditioning switch 304 to switch the indicator of preconditioning switch 304 from the temperature adjustment automatic display shown in Figure 3(B) to the temperature adjustment off display shown in Figure 3(C) (step S169).

[0054] If it is determined that temperature control is not in progress (NO in step S164), if it is determined that charging of battery 100 has not started (NO in step S166), or after step S169, CPU 301 returns the processing to be executed to the higher-level processing that called this battery temperature control execution processing.

[0055] If it is determined that the navigation-triggered temperature adjustment mode is not being set (NO in step S161), CPU 301 determines whether the setting mode of cooling / heating device 800 is set to operation-triggered temperature adjustment mode (step S171). If it is determined that the operation-triggered temperature adjustment mode is being set (YES in step S171), CPU 301 determines whether temperature adjustment control is being performed (step S172). If it is determined that temperature adjustment control is not being performed (NO in step S172), CPU 301 controls cooling / heating device 800 to start temperature adjustment control at the upper limit speed of cooling / heating device 800 (step S173).

[0056] If it is determined that temperature adjustment control is in progress (YES in step S172), or after step S173, CPU 301 determines whether the temperature of battery 100 has reached a target temperature within a temperature range suitable for charging or driving, that is, an appropriate temperature (step S174). If it is determined that the appropriate temperature has been reached (YES in step S174), CPU 301 controls cooling / heating device 800 to start control to maintain the appropriate temperature of battery 100 (step S175).

[0057] If it is determined that the appropriate temperature has not been reached (NO in step S174), or after step S175, CPU 301 determines whether charging of battery 100 has started (step S176).

[0058] If it is determined that charging of battery 100 has started (YES in step S176), CPU 301 terminates the temperature adjustment control by cooling / heating device 800 (step S177), switches the setting mode of cooling / heating device 800 from operation-triggered temperature adjustment mode to temperature adjustment off mode (step S178), and controls preconditioning switch 304 to switch the indicator of preconditioning switch 304 from the temperature adjustment on display shown in Figure 3(A) to the temperature adjustment off display shown in Figure 3(C) (step S179).

[0059] If it is determined that the operation-triggered temperature adjustment mode is not being set (NO in step S171), if it is determined that charging of battery 100 has not started (NO in step S176), or after step S179, CPU 301 returns the processing to be executed to the higher-level processing that called this battery temperature adjustment execution processing.

[0060] [Second embodiment] In the first embodiment, as shown in step S113 of FIG. 2, when the CPU 301 of the ECU 300 is in the navigation-triggered temperature control mode, which adjusts the temperature of the battery 100 when the driving route includes a facility where the battery 100 can be charged, and a predetermined operation for adjusting the temperature of the battery 100 is received, the CPU 301 of the ECU 300 prioritizes the operation-triggered temperature control mode, which adjusts the temperature of the battery 100 in accordance with the predetermined operation.

[0061] In the second embodiment, when the set mode is the navigation-triggered temperature control mode and a predetermined user operation for adjusting the temperature of the battery 100 is accepted, the CPU 301 of the ECU 300 rejects the predetermined operation and maintains the navigation-triggered temperature control mode.

[0062] As a result, if a predetermined operation is accepted while the navigation-triggered temperature control mode is in effect, the predetermined operation is rejected, the mode is not switched to the operation-triggered temperature control mode, and the navigation-triggered temperature control mode is maintained. As a result, when the vehicle arrives at a facility where the battery 100 can be charged, the temperature of the battery 100 can be set within a temperature range suitable for charging, and additional power consumption due to adjustment of the temperature of the battery 100 in response to a user operation to adjust the temperature of the battery 100 can be reduced.

[0063] 1, 3, and 4 of the first embodiment are also common to the second embodiment. Fig. 5 is a flowchart showing the flow of the battery temperature control setting process in the second embodiment. Referring to Fig. 5, the battery temperature control setting process is called from a higher-level process by CPU 301 of ECU 300 at predetermined intervals and executed. Among the steps in Fig. 5, steps with the same numbers as those in Fig. 2 are the same processes as those in Fig. 2, and therefore redundant description will not be repeated.

[0064] If it is determined that the preconditioning switch 304 has been turned on (YES in step S112), the CPU 301 rejects the trigger that the preconditioning switch 304 has been turned on, and maintains the setting mode of the cooling / heating device 800 in the navigation-triggered temperature adjustment mode (step S115), while maintaining the indicator of the preconditioning switch 304 in the automatic temperature adjustment display shown in Fig. 3(B) (step S116). After step S116, the CPU 301 returns the processing to be executed to the higher-level processing that called this battery temperature adjustment setting processing.

[0065] [Third embodiment] In the second embodiment, as shown in step S115 of FIG. 5, when the navigation-triggered temperature control mode is in effect, in which the temperature of the battery 100 is adjusted when the driving route includes a facility where the battery 100 can be charged, if a predetermined user operation for adjusting the temperature of the battery 100 is accepted, the CPU 301 of the ECU 300 rejects the predetermined operation and maintains the navigation-triggered temperature control mode.

[0066] In the third embodiment, when the set mode is an operation-triggered temperature control mode in which the temperature of the battery 100 is adjusted in response to a predetermined operation by the user, if the driving route of the electric vehicle 1 comes to include a facility where the battery 100 can be charged, the CPU 301 of the ECU 300 maintains the operation-triggered temperature control mode.

[0067] As a result, when the driving route includes a facility where the battery 100 can be charged while in the operation-triggered temperature control mode, the operation-triggered temperature control mode is maintained without switching to the navigation-triggered temperature control mode. As a result, the temperature of the battery 100 can be quickly adjusted in response to a user operation to adjust the temperature of the battery 100.

[0068] 1, 3, and 4 of the first embodiment are also common to the third embodiment. Fig. 6 is a flowchart showing the flow of the battery temperature control setting process in the third embodiment. Referring to Fig. 6, the battery temperature control setting process is called from a higher-level process by CPU 301 of ECU 300 at predetermined intervals and executed.

[0069] First, CPU 301 of ECU 300 determines whether the setting mode of cooling / heating device 800 is set to the operation-triggered temperature adjustment mode (step S131). If it is determined that the setting mode is set to the operation-triggered temperature adjustment mode (YES in step S131), CPU 301 determines whether navigation settings that specify a charging facility such as EVSE 2 as a destination or a stopover point have been accepted in navigation device 600 (step S132).

[0070] When it is determined that the navigation setting with the charging facility as the destination / waypoint has been accepted (YES in step S132), CPU 301 rejects the trigger that the navigation setting with the charging facility as the destination / waypoint has been accepted, and maintains the setting mode of cooling / heating device 800 in the operation-triggered temperature adjustment mode (step S135), and also maintains the indicator of preconditioning switch 304 displaying the temperature adjustment on state as shown in FIG. 3(A) (step S136).

[0071] If it is determined that the operation-triggered temperature control mode is not in effect (NO in step S131), CPU 301 determines whether the setting mode of cooling / heating device 800 is currently set to the temperature control off mode (step S141).If it is determined that the setting mode is currently set to the temperature control off mode (YES in step S141), CPU 301 determines whether a navigation setting that sets a charging facility such as EVSE 2 as a destination or a waypoint has been accepted by navigation device 600 (step S142).

[0072] If it is determined that the navigation setting with the charging facility as the destination / waypoint has been accepted (YES in step S142), CPU 301 switches the setting mode of cooling / heating device 800 from temperature control off mode to navigation-triggered temperature control mode (step S143), and controls preconditioning switch 304 to switch the indicator of preconditioning switch 304 from the temperature control off display shown in Figure 3(C) to the temperature control automatic display shown in Figure 3(B) (step S144).

[0073] If it is determined in step S132 that the navigation setting with the charging facility as the destination / waypoint has not been accepted (NO in step S132), if it is determined after step S136 that the temperature control off mode is not being set (NO in step S141), if it is determined in step S142 that the navigation setting with the charging facility as the destination / waypoint has not been accepted (NO in step S142), or after step S144, CPU 301 returns the processing to be executed to the higher-level processing that called this battery temperature control setting processing.

[0074] [Fourth embodiment] In the third embodiment, as shown in step S135 of FIG. 6, when the set mode is an operation-triggered temperature control mode in which the temperature of the battery 100 is adjusted in response to a predetermined operation by the user, if the travel route of the electric vehicle 1 comes to include a facility where the battery 100 can be charged, the CPU 301 of the ECU 300 maintains the operation-triggered temperature control mode.

[0075] In the fourth embodiment, when the set mode is the operation-triggered temperature control mode and the driving route of the electric vehicle 1 includes a facility where the battery 100 can be charged, the CPU 301 of the ECU 300 prioritizes the navigation-triggered temperature control mode, which adjusts the temperature of the battery 100 when the driving route includes a facility where the battery 100 can be charged.

[0076] Thus, when the operation-triggered temperature control mode is in operation, the navigation-triggered temperature control mode takes priority over the operation-triggered temperature control mode. As a result, when the vehicle arrives at a facility where the battery 100 can be charged, the battery 100 can be brought into a temperature range suitable for charging, and additional power consumption due to adjustment of the temperature of the battery 100 in response to a user operation to adjust the temperature of the battery 100 can be suppressed.

[0077] 1, 3, and 4 of the first embodiment are also common to the fourth embodiment. Fig. 7 is a flowchart showing the flow of the battery temperature control setting process in the fourth embodiment. Referring to Fig. 7, the battery temperature control setting process is called from a higher-level process by CPU 301 of ECU 300 at predetermined intervals and executed. Among the steps in Fig. 7, steps having the same numbers as those in Fig. 6 are the same processes as those in Fig. 6, and therefore redundant description will not be repeated.

[0078] If it is determined that the navigation setting with the charging facility as the destination / waypoint has been accepted (YES in step S132), CPU 301 controls HMI device 700 via communication unit 303 to output a visual (or audio) message for confirming with the user whether or not it is OK to switch the setting mode from the operation-triggered temperature control mode to the navigation-triggered temperature control mode (step S153). CPU 701 of HMI device 700 controls touch panel display 704 to output a message for confirming with the user whether or not it is OK to switch the setting mode from the operation-triggered temperature control mode to the navigation-triggered temperature control mode, in response to the control signal received by communication unit 703 from CPU 301 of ECU 300.

[0079] Next, CPU 301 determines whether the response to the confirmation in step S153 indicates that the transition is possible (step S154). If it is determined that the response indicates that the transition is possible (YES in step S154), CPU 301 switches the setting mode of cooling / heating device 800 from the operation-triggered temperature adjustment mode to the navigation-triggered temperature adjustment mode (step S155), and also switches the indicator of preconditioning switch 304 from the temperature adjustment on display shown in Fig. 3(A) to the temperature adjustment automatic display shown in Fig. 3(B) (step S156).

[0080] On the other hand, if it is determined that the answer is not possible to transition (NO in step S154), CPU 301 rejects the trigger that the navigation setting with the charging facility as the destination / waypoint has been accepted, and maintains the setting mode of cooling / heating device 800 in the operation-triggered temperature adjustment mode (step S157), and also maintains the indicator of preconditioning switch 304 displaying temperature adjustment on as shown in FIG. 3(A) (step S158).

[0081] If it is determined in step S132 that the navigation setting with the charging facility as the destination / waypoint has not been accepted (NO in step S132), after step S156 and after step S158, CPU 301 returns the processing to be executed to the higher-level processing that called this battery temperature adjustment setting processing.

[0082] [Fifth embodiment] In the fourth embodiment, as shown in steps S153 to S155 of FIG. 7 , when the CPU 301 of the ECU 300 is in the operation-triggered temperature control mode, which adjusts the temperature of the battery 100 in response to a predetermined user operation, if the driving route of the electric vehicle 1 comes to include a facility where the battery 100 can be charged, the CPU 301 of the ECU 300 confirms with the user whether or not it is OK to switch to the navigation-triggered temperature control mode, which adjusts the temperature of the battery 100 in response to the fact that the driving route includes a facility where the battery 100 can be charged, thereby giving priority to the navigation-triggered temperature control mode.

[0083] In the fifth embodiment, when the set mode is the operation-triggered temperature control mode and the driving route of the electric vehicle 1 includes a facility where the battery 100 can be charged, the CPU 301 of the ECU 300 switches from the operation-triggered temperature control mode to the navigation-triggered temperature control mode, thereby giving priority to the navigation-triggered temperature control mode.

[0084] As a result, when the operation-triggered temperature control mode is in operation, if the driving route includes a facility where the battery 100 can be charged, the navigation-triggered temperature control mode takes priority over the operation-triggered temperature control mode. As a result, the temperature of the battery 100 can be set to a temperature range suitable for charging when the battery 100 arrives at a facility where the battery 100 can be charged, and additional power consumption due to adjustment of the temperature of the battery 100 in response to a user operation to adjust the temperature of the battery 100 can be suppressed.

[0085] 1, 3, and 4 of the first embodiment are also common to the fifth embodiment. Fig. 8 is a flowchart showing the flow of the battery temperature control setting process in the fifth embodiment. Referring to Fig. 8, the battery temperature control setting process is called from a higher-level process by CPU 301 of ECU 300 at predetermined intervals and executed. Among the steps in Fig. 8, steps having the same numbers as those in Figs. 6 and 7 are the same processes as those in Figs. 6 and 7, and therefore overlapping descriptions will not be repeated.

[0086] If it is determined that the navigation setting with the charging facility as the destination / waypoint has been accepted (YES in step S132), CPU 301 switches the setting mode of cooling / heating device 800 from operation-triggered temperature adjustment mode to navigation-triggered temperature adjustment mode (step S133), and also switches the indicator of preconditioning switch 304 from the temperature adjustment on display shown in Fig. 3(A) to the temperature adjustment automatic display shown in Fig. 3(B) (step S134). Thereafter, CPU 301 returns the processing to be executed to the higher-level processing that called this battery temperature adjustment setting processing.

[0087] [Variations] (1) In the above-described embodiment, as shown in Figures 1 and 3, the preconditioning switch 304 is a push button switch having an indicator on the operation surface. However, this is not limited to this, and the preconditioning switch 304 may be a button displayed on the screen of the touch panel display 704 of the HMI device 700. In this case, the setting mode of the cooling / heating device 800 may be displayed on a button displayed on the screen, or may be displayed in another part of the screen.

[0088] (2) In the above-described embodiment, when the temperature of battery 100 reaches an appropriate temperature in the operation-triggered temperature adjustment mode, control is executed to maintain the appropriate temperature, as shown in steps S174 and S175 of Fig. 4. However, the present invention is not limited to this, and the temperature adjustment control may be terminated when the temperature of battery 100 reaches an appropriate temperature.

[0089] (3) In the second embodiment described above, as shown in step S115 of FIG. 5, when the set mode is the navigation-triggered temperature control mode, the navigation-triggered temperature control mode is given priority over the operation-triggered temperature control mode by rejecting the trigger for performing a predetermined operation such as turning on the preconditioning switch 304.

[0090] However, the present invention is not limited to this, and other methods for prioritizing the navigation-triggered temperature control mode may be used. For example, when the set mode is the navigation-triggered temperature control mode, a predetermined operation may be disabled. Furthermore, when a predetermined operation is performed while the set mode is the navigation-triggered temperature control mode, the user may be prompted to confirm whether or not to switch from the navigation-triggered temperature control mode to the operation-triggered temperature control mode.

[0091] (4) In the third embodiment described above, as shown in step S135 of FIG. 6, when the set mode is the operation-triggered temperature control mode, if the driving route includes a facility where the battery 100 can be charged, the operation-triggered temperature control mode is given priority by rejecting the opportunity to switch to the navigation-triggered temperature control mode, which adjusts the temperature of the battery 100, when the driving route includes a facility where the battery 100 can be charged.

[0092] Furthermore, in the fourth embodiment described above, as shown in steps S153, S154, and S157 of FIG. 7, when the set mode is the operation-triggered temperature control mode, if the driving route includes a facility where the battery 100 can be charged, the operation-triggered temperature control mode is given priority by confirming with the user whether or not it is OK to switch to the operation-triggered temperature control mode.

[0093] However, the present invention is not limited to this, and other methods may be used to prioritize the operation-triggered temperature control mode. For example, when the set mode is the operation-triggered temperature control mode, it may be possible not to determine whether to switch to the navigation-triggered temperature control mode.

[0094] (5) In the fourth embodiment described above, as shown in step S153 of Figure 7, a message for confirming with the user whether or not to switch the setting mode from the operation-triggered temperature control mode to the navigation-triggered temperature control mode is output on the touch panel display 704 of the HMI device 700. However, this is not limited thereto, and such a confirmation message may be output on the touch panel display of the user terminal 3.

[0095] (6) The above-described embodiments may be combined in any manner possible. For example, the first embodiment may be combined with any of the third to fifth embodiments, or the second embodiment may be combined with any of the third to fifth embodiments.

[0096] (7) The above-described embodiment can be understood as a disclosure of a battery temperature control system including the cooling / heating device 800 and the ECU 300, a disclosure of a vehicle such as the electric vehicle 1 including this battery temperature control system, or a disclosure of a battery temperature control method or a battery temperature control program for adjusting the temperature of the battery 100 in the battery temperature control system or vehicle.

[0097] [summary] (1) As shown in Fig. 1, the battery temperature control system adjusts the temperature of the battery 100 mounted on the electric vehicle 1, and includes a cooling / heating device 800 that adjusts the temperature of the battery 100 and a processor (e.g., CPU 301 of ECU 300) that controls the cooling / heating device 800. As shown in Fig. 2 and other figures, the setting modes of the cooling / heating device 800 include a navigation-triggered temperature control mode in which, when the traveling route of the electric vehicle 1 includes a facility (e.g., EVSE 2) capable of charging the battery 100, the cooling / heating device 800 adjusts the battery 100 to be within a first temperature range suitable for charging when the electric vehicle 1 arrives at the facility, and an operation-triggered temperature control mode in which the battery 100 is adjusted to be within the second temperature range when a predetermined operation (e.g., an operation to turn on preconditioning switch 304) of the user of the electric vehicle 1 is received for adjusting the battery 100 to be within a second temperature range suitable for charging or traveling.

[0098] (2) In the above (1), as shown in Fig. 4, the processor controls the cooling / heating device 800 to adjust the temperature of the battery 100 according to the set mode. As shown in Fig. 2 of the first embodiment, if a predetermined operation is accepted when the set mode is the navigation-triggered temperature adjustment mode, the processor prioritizes the operation-triggered temperature adjustment mode (for example, step S113).

[0099] As a result, when the navigation-triggered temperature control mode, which adjusts the temperature of battery 100 when the driving route includes a facility where battery 100 can be charged, is in effect, if a predetermined user operation for adjusting the temperature of battery 100 is accepted, priority is given to the operation-triggered temperature control mode, which adjusts the temperature of battery 100 in response to the predetermined user operation. As a result, the temperature of battery 100 can be quickly adjusted in response to the user operation for adjusting the temperature of battery 100.

[0100] (3) In the above (1), as shown in Fig. 4, the processor controls the cooling / heating device 800 to adjust the temperature of the battery 100 according to the set mode. As shown in Fig. 5 of the second embodiment, if a predetermined operation is accepted when the set mode is the navigation-triggered temperature control mode, the processor rejects the predetermined operation and maintains the navigation-triggered temperature control mode (for example, step S115).

[0101] As a result, when the navigation-triggered temperature control mode is in which the temperature of battery 100 is adjusted when the driving route includes a facility where battery 100 can be charged, if a predetermined user operation to adjust the temperature of battery 100 is accepted, the predetermined operation is rejected, and the navigation-triggered temperature control mode is maintained without switching to the operation-triggered temperature control mode that adjusts the temperature of battery 100 in accordance with the user's predetermined operation. As a result, when battery 100 arrives at a facility where battery 100 can be charged, battery 100 can be brought into a temperature range suitable for charging, and additional power consumption due to adjustment of the temperature of battery 100 in accordance with a user operation to adjust the temperature of battery 100 can be suppressed.

[0102] (4) In the above (1), as shown in Fig. 4, the processor controls the cooling / heating device 800 to adjust the temperature of the battery 100 according to the set mode. As shown in Fig. 6 of the third embodiment, when the set mode is the operation-triggered temperature adjustment mode and the travel route includes a facility, the processor maintains the operation-triggered temperature adjustment mode (for example, step S135).

[0103] As a result, when the driving route includes a facility where battery 100 can be charged while the driving mode is in the operation-triggered temperature control mode, which adjusts the temperature of battery 100 in response to a predetermined user operation, the operation-triggered temperature control mode is maintained without switching to the navigation-triggered temperature control mode, which adjusts the temperature of battery 100 in response to the driving route including a facility where battery 100 can be charged. As a result, the temperature of battery 100 can be quickly adjusted in response to a user operation for adjusting the temperature of battery 100. For example, when it is desired to ensure driving force in the current driving situation, the operation-triggered temperature control mode, which adjusts battery 100 to a temperature range suitable for driving, is maintained, thereby shortening the time it takes for battery 100 to reach a temperature range suitable for driving.

[0104] (5) In the above (1), as shown in Fig. 4, the processor controls the cooling / heating device 800 to adjust the temperature of the battery 100 according to the set mode. As shown in Fig. 7 of the fourth embodiment and Fig. 8 of the fifth embodiment, when the set mode is the operation-triggered temperature control mode and the driving route includes a facility, the processor prioritizes the navigation-triggered temperature control mode (for example, steps S153 to S155 in Fig. 7 and step S143 in Fig. 8).

[0105] As a result, when the operation-triggered temperature control mode is in which the temperature of battery 100 is adjusted in response to a predetermined user operation and the driving route comes to include a facility where battery 100 can be charged, the navigation-triggered temperature control mode, which adjusts the temperature of battery 100 in response to the fact that the driving route includes a facility where battery 100 can be charged, takes priority over the operation-triggered temperature control mode. As a result, when battery 100 arrives at a facility where battery 100 can be charged, battery 100 can be brought into a temperature range suitable for charging, and additional power consumption due to adjustment of the temperature of battery 100 in response to a user operation to adjust the temperature of battery 100 can be suppressed.

[0106] (6) In (1) above, as shown in Fig. 1, the battery temperature control system further includes a display device (e.g., the touch panel display 704 of the HMI device 700) that displays the setting mode of the cooling / heating device 800. As shown in Fig. 3, the display device includes common elements (e.g., the pictures of the dry cell batteries in Figs. 3(A) and 3(B) and the three vertical wavy lines in Figs. 3(A) and 3(B)) in the display in the navigation-triggered temperature control mode and the operation-triggered temperature control mode, and adds a specific element (e.g., the word "Auto" in Fig. 3(B)) to the common elements in either the navigation-triggered temperature control mode or the operation-triggered temperature control mode (e.g., the navigation-triggered temperature control mode). As shown in Figure 2 of the first embodiment, Figure 5 of the second embodiment, Figure 6 of the third embodiment, Figure 7 of the fourth embodiment, and Figure 8 of the fifth embodiment, the processor controls the display device to display common elements when the setting mode is the navigation-triggered temperature control mode and the operation-triggered temperature control mode, and to display specific elements when the setting mode is either one of the modes (for example, step S114 of Figure 2, step S116 of Figure 5, step S124 of Figures 2 and 5, step S131 of Figure 6, step S156 and step S158 of Figure 7, step S134 of Figure 8, and step S144 of Figures 6 to 8).

[0107] As a result, when the navigation-triggered temperature control mode, which adjusts the temperature of battery 100 when the driving route includes a facility where battery 100 can be charged, and the operation-triggered temperature control mode, which adjusts the temperature of battery 100 in response to a predetermined operation by the user, are in effect, elements common to both modes are displayed on the display device, and specific elements are displayed when either of the two modes is in effect. As a result, by clearly conveying to the user the multiple settings for adjusting the temperature of battery 100, it is possible to prevent a decrease in usability.

[0108] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present disclosure is defined by the claims, not by the description of the above embodiments, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0109] 1 Electric vehicle, 2 EVSE, 3 User terminal, 5 External server, 10 MG, 20 Power transmission gear, 30 Drive wheel, 40 PCU, 50 SMR, 60 DC inlet, 70, 90 Charging relay, 80 AC inlet, 100 Battery, 130 On-board charger, 200 Monitoring unit, 230 Temperature detection unit, 300 ECU, 301, 601, 701 CPU, 302, 602, 702 Memory, 303, 603, 703 Communication unit, 304 Preconditioning switch, 400 DC power supply, 410, 510 Charging cable, 420, 520 Connector, 500 AC power supply, 600 Navigation device, 700 HMI device, 704 Touch panel display, 800 Cooling / heating device, 900 Network.

Claims

1. A battery temperature control system that adjusts the temperature of a power storage device mounted on a vehicle, a temperature adjusting device that adjusts the temperature of the power storage device; a processor for controlling the temperature adjustment device; a display device that displays a setting mode of the temperature adjustment device, The setting mode of the temperature adjusting device is a first mode in which, when a travel route of the vehicle includes a facility capable of charging the power storage device, the power storage device is adjusted to be within a first temperature range suitable for charging when the vehicle arrives at the facility; a second mode in which, when a predetermined operation of a user of the vehicle for adjusting the power storage device to a second temperature range suitable for charging or traveling is received, the power storage device is set to be adjusted to the second temperature range; the display device includes a common element in the display in the first mode and the second mode, and adds a specific element to the common element in either the first mode or the second mode; The processor: A battery temperature control system that controls the display device to display the common element when the setting mode is the first mode and the second mode, and to display the specific element when the setting mode is one of the first and second modes.

2. The processor: controlling the temperature adjustment device to adjust the temperature of the power storage device in accordance with the set mode; The battery temperature regulation system according to claim 1 , wherein when the predetermined operation is accepted while the setting mode is the first mode, the second mode is prioritized.

3. The processor: controlling the temperature adjustment device to adjust the temperature of the power storage device in accordance with the set mode; The battery temperature regulation system according to claim 1 , wherein, when the predetermined operation is accepted while the set mode is the first mode, the predetermined operation is rejected and the first mode is maintained.

4. The processor: controlling the temperature adjustment device to adjust the temperature of the power storage device in accordance with the set mode; The battery temperature control system according to claim 1 , wherein when the set mode is the second mode and the travel route includes the facility, the second mode is maintained.

5. The processor: controlling the temperature adjustment device to adjust the temperature of the power storage device in accordance with the set mode; The battery temperature control system according to claim 1 , wherein when the set mode is the second mode and the travel route includes the facility, the first mode is prioritized.

6. A battery temperature control method in a battery temperature control system that adjusts the temperature of a power storage device mounted on a vehicle, comprising: The battery temperature control system includes: a temperature adjusting device that adjusts the temperature of the power storage device; a processor for controlling the temperature adjustment device; a display device that displays a setting mode of the temperature adjustment device, The setting mode of the temperature adjusting device is a first mode in which, when a travel route of the vehicle includes a facility capable of charging the power storage device, the power storage device is adjusted to be within a first temperature range suitable for charging when the vehicle arrives at the facility; a second mode in which, when a predetermined operation of a user of the vehicle for adjusting the power storage device to a second temperature range suitable for charging or traveling is received, the power storage device is set to be adjusted to the second temperature range; the display device includes a common element in the display in the first mode and the second mode, and adds a specific element to the common element in either the first mode or the second mode; The battery temperature control method includes: controlling the display device to display the common element when the setting mode is the first mode and the second mode; and controlling the display device to display the specific element when the state is one of the two.

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