Vehicle and vehicle control method

Abstract

The invention relates to a vehicle and a control method of the vehicle. The ECU executes a process including: a step for acquiring position information when it is determined that the gas concentration in the battery pack increases; obtaining the sunshine amount; and a step of performing a gas discharge process when it is determined that there is no obstruction above during travel, and it is determined that there is no discharge influence.

Description

Technical Field

[0001] The present disclosure relates to vehicles. Background Art

[0002] For example, Japanese Patent Application Laid-Open No. 2022-012308 discloses a technique for prohibiting driving of a cooling device to suppress discharge to the outside of the vehicle when the concentration of gas containing hydrogen sulfide in a battery pack exceeds a threshold value. Summary of the invention

[0003] However, since the battery pack is filled with gas while suppressing the discharge of gas to the outside of the vehicle, it is sometimes required to discharge the gas in the battery pack to the outside of the vehicle at an appropriate timing.

[0004] An object of the present disclosure is to provide a vehicle and a method for controlling the vehicle that can discharge gas in a battery pack at an appropriate timing.

[0005] One embodiment of the present disclosure provides a vehicle comprising: a battery pack having a secondary battery; a discharge device configured to discharge gas generated by the secondary battery in the battery pack to the outside of the vehicle; a detection device configured to detect at least one of a position of the vehicle and a driving state of the vehicle; and a control device configured to control the discharge device so as to discharge the gas to the outside of the vehicle when a detection result of the detection device is a predetermined detection result.

[0006] Thus, when the detection result of the vehicle's running state or position is a predetermined detection result, the discharge device is controlled so that the gas is discharged to the outside of the vehicle, so that the gas in the battery pack can be discharged at an appropriate timing.

[0007] In this embodiment, the detection device detects the vehicle speed. The control device controls the discharge device so that the gas is discharged to the outside of the vehicle when the vehicle speed is detected to be running, and the gas is not discharged to the outside of the vehicle when the vehicle speed is detected to be stationary.

[0008] Thus, the gas is discharged to the outside of the vehicle while the vehicle is running, and the discharged gas is not retained but diffused, so the amount of gas in the battery pack can be reduced without affecting the surroundings of the vehicle. In addition, the gas is suppressed from being discharged to the outside of the vehicle when the vehicle is stopped, so the gas is suppressed from being retained around the vehicle.

[0009] Furthermore, in the present embodiment, the control device controls the exhaust device in such a manner that the gas is exhausted to the outside of the vehicle when the position of the vehicle is detected to be within the first area, and the gas is not exhausted to the outside of the vehicle when the position of the vehicle is detected to be within the second area different from the first area. The first area is pre-set as an area with a lower degree of influence due to the exhaust gas than the second area.

[0010] Thus, when the vehicle is in the first area, the gas is discharged to the outside of the vehicle, thereby reducing the amount of gas in the battery pack without affecting the surroundings of the vehicle. On the other hand, when the vehicle is in the second area, the gas is not discharged to the outside of the vehicle, thereby suppressing the accumulation of gas around the vehicle in the second area.

[0011] Furthermore, in the present embodiment, the control device controls the exhaust device so that the gas is exhausted to the outside of the vehicle when the position of the vehicle is not blocked above the vehicle, and the gas is not exhausted to the outside of the vehicle when the position of the vehicle is blocked above the vehicle.

[0012] Thus, when the vehicle is in a position where the upper part of the vehicle is not blocked, the gas is discharged to the outside of the vehicle, so that the gas does not accumulate around the vehicle but is diffused, so that the amount of gas in the battery pack can be reduced without affecting the surroundings of the vehicle. On the other hand, when the vehicle is in a position where the upper part of the vehicle is blocked, the gas is not discharged to the outside of the vehicle, so the gas is suppressed from accumulating around the vehicle.

[0013] Furthermore, in this embodiment, the battery pack includes an all-solid-state battery. The gas includes hydrogen sulfide.

[0014] As a result, the gas generated in the all-solid-state batteries in the battery pack can be discharged to the outside of the vehicle at an appropriate timing using the detection results of the vehicle's running state and the vehicle's position.

[0015] Another aspect of the present disclosure provides a control method for a vehicle equipped with a battery pack having a secondary battery. The vehicle includes a discharge device configured to discharge gas generated by the secondary battery in the battery pack to the outside of the vehicle. The method includes: a step of detecting at least one of the position of the vehicle and the driving state of the vehicle; and a step of controlling the discharge device in a manner that the gas is discharged to the outside of the vehicle when the detection result is a predetermined detection result.

[0016] The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a diagram showing an example of the structure of a vehicle according to the present embodiment.

[0018] Figure 2 This is a flowchart showing an example of processing executed by the ECU.

[0019] Figure 3 It is a diagram for explaining the exhaust path of gas. DETAILED DESCRIPTION

[0020] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In addition, the same or corresponding parts are denoted by the same reference numerals in the drawings, and their description will not be repeated.

[0021] Hereinafter, a case where vehicle 200 according to the present embodiment is an electric car will be described as an example. Figure 1 2 is a diagram showing an example of the structure of a vehicle 200 according to the present embodiment. The vehicle 200 is not particularly limited as long as it is a vehicle equipped with a battery pack, and may be a hybrid vehicle, a plug-in hybrid vehicle, or a fuel cell vehicle.

[0022] like Figure 1 As shown, the vehicle 200 includes an ECU (Electronic Control Unit) 100, a sunlight sensor 102, a position detection device 104, a concentration sensor 106, a battery pack 214, a PCU (Power Control Unit) 216, an MG (Motor Generator) 218, drive wheels 222 and a discharge device 240.

[0023] MG218 is typically an AC rotating electric machine, for example, a three-phase AC synchronous motor with a permanent magnet embedded in the rotor. MG218 has a function as an electric motor (motor) and a function as a generator (generator). The output torque of MG218 is transmitted to the drive wheel 222 via a speed reducer and a differential device.

[0024] When the vehicle 200 is braked, the MG 218 is driven by the driving wheel 222, and the MG 218 operates as a generator. Thus, the MG 218 also functions as a braking device for regenerative braking, and performs electric power conversion on the kinetic energy of the vehicle 200 during regenerative braking. The regenerative power generated by the regenerative braking force in the MG 218 is stored in the battery pack 214.

[0025] PCU 216 is a power conversion device that converts electric power bidirectionally between MG 218 and battery pack 214. PCU 216 includes, for example, an inverter and a converter that operate in accordance with a control signal from ECU 100.

[0026] The converter boosts the voltage supplied from the battery pack 214 and supplies the boosted voltage to the inverter when the battery pack 214 is discharged. The inverter converts the DC power supplied from the converter into AC power to drive the MG 218.

[0027] On the other hand, the inverter converts AC power generated by MG 218 into DC power and supplies it to the converter when charging battery pack 214. The converter steps down the voltage supplied from the inverter to a voltage suitable for charging battery pack 214 and supplies it to battery pack 214.

[0028] Furthermore, PCU 216 stops the charging and discharging of battery pack 214 by stopping the operations of the inverter and the converter in accordance with a control signal from ECU 100. PCU 216 may also be configured to omit the converter.

[0029] The battery pack 214 is a power storage device for storing electric power for driving the MG 218. The battery pack 214 is a rechargeable DC power source, and includes, for example, a battery module 212 formed by connecting a plurality of battery cells in series. The battery cell is a secondary battery that uses a solid electrolyte for ion transfer between the positive electrode and the negative electrode, and its structural components are all solid. As a material constituting the battery cell, a material known as a material constituting an all-solid battery may be used, but as a solid electrolyte, for example, a sulfide-based material such as sulfide glass may be used. As a solid electrolyte, for example, it may include at least one selected from the group consisting of Li2S-P2S5, Li2S-SiS2, LiI-Li2S-SiS2, LiI-Si2S-P2S5, LiI-LiBr-Li2S-P2S5, LiI-Li2S-P2S5, LiI-Li2O-Li2S-P2S5, LiI-Li2S-P2O5, LiI-Li3PO4-P2S5 and Li2S-P2S5-GeS2.

[0030] The exhaust device 240 is configured to be able to exhaust the gas generated in the battery pack 214 to the outside of the vehicle. The exhaust device 240 includes a first exhaust duct 250 , a second exhaust duct 258 , and an opening and closing mechanism 260 .

[0031] The first exhaust duct 250 is provided inside the battery pack 214. An opening is formed at one end of the first exhaust duct 250. The opening is provided just above the battery module 212 and is provided toward the top of the battery pack 214. The other end of the first exhaust duct 250 is connected to the opening above the housing (frame) of the battery pack 214 and is connected to one end of the second exhaust duct 258. A first filter 252 is provided in the passage on the one end side of the first exhaust duct 250. A second filter 256 is provided in the passage on the other end side of the first exhaust duct 250. A desulfurizing agent for adsorbing sulfur components in the gas is provided in the passage between the first filter 252 and the second filter 256 in the first exhaust duct 250.

[0032] As described above, one end of the second exhaust duct 258 is connected to the other end of the first exhaust duct 250. The other end of the second exhaust duct 258 is connected to an opening (not shown) to the outside of the vehicle. An opening and closing mechanism 260 is provided between one end and the other end of the second exhaust duct 258. The opening and closing mechanism 260 is configured to be able to switch between a cut-off state in which the flow path in the second exhaust duct 258 is closed and the flow of gas is cut off, and a flowable state in which the flow path is opened and the gas can flow, for example, by using an actuator (not shown) driven according to a control signal from the ECU 100. In addition, a fan (not shown) for forcibly discharging the gas in the battery pack 214 to the outside of the vehicle is also provided in the second exhaust duct 258.

[0033] A sunlight sensor 102 , a position detection device 104 , and a concentration sensor 106 are connected to the ECU 100 .

[0034] The sunlight sensor 102 is, for example, arranged to receive sunlight from the front glass. The sunlight sensor 102 detects, for example, the amount of sunlight (heat or energy) received by the light-receiving surface per unit time. The sunlight sensor 102 may also be arranged, for example, on the roof of the vehicle 200. The sunlight sensor 102 outputs a signal indicating the detected sunlight amount to the ECU 100.

[0035] The position detection device 104 detects the position information of the vehicle 200, and outputs a signal indicating the detected position information to the ECU 100. In addition, the position detection device 104 may be, for example, a receiver that receives a signal indicating the position information from an artificial satellite for position detection such as a GPS (Global Positioning System), or a receiver that receives a signal indicating the position information from a base station around the vehicle 200 such as a wireless LAN (Local Area Network).

[0036] The concentration sensor 106 detects the gas concentration in the battery pack 214. More specifically, the concentration sensor 106 may detect, for example, the concentration of hydrogen sulfide contained in the gas as the gas concentration, and output a signal indicating the detected gas concentration to the ECU 100.

[0037] ECU 100 includes a CPU (Central Processing Unit) and a memory (ROM (Read Only Memory) and RAM (Random Access Memory)). ECU 100 controls each device (e.g., PCU 216, an opening and closing mechanism 260 of a discharge device 240 described later) so that the vehicle 200 is in a desired state based on signals received from each sensor and information such as a map and a program stored in the memory.

[0038] In the battery pack 214 mounted on such a vehicle 200, a battery module 212 is included which is a sulfide-based all-solid-state battery. Therefore, when a gas containing sulfur components flows out of any battery cell constituting the battery module 212 to the outside of the battery cell, the sulfur components react with water contained in the air in the battery pack 214, thereby possibly generating hydrogen sulfide.

[0039] Therefore, for example, although it is considered to suppress the discharge to the outside of the vehicle when the gas concentration in the battery pack 214 is higher than the threshold, if the discharge to the outside of the vehicle is suppressed, the battery pack 214 will be filled with gas, so it is sometimes required to discharge the gas in the battery pack 214 to the outside of the vehicle at an appropriate time.

[0040] Therefore, in the present embodiment, the ECU 100 controls the discharge device so as to discharge the gas to the outside of the vehicle when the detection result of at least one of the position of the vehicle 200 and the driving state of the vehicle 200 is a predetermined detection result.

[0041] For example, the ECU 100 controls the discharge device 240 so that the gas is discharged to the outside of the vehicle when the vehicle 200 is detected to be at a running vehicle speed, and so that the gas is not discharged to the outside of the vehicle when the vehicle 200 is detected to be at a stopped vehicle speed.

[0042] Thus, the gas is discharged to the outside of the vehicle while the vehicle 200 is running, and the discharged gas is diffused without being retained, so that the amount of gas in the battery pack 214 can be reduced without affecting the surroundings of the vehicle 200. In addition, the gas is suppressed from being discharged to the outside of the vehicle while the vehicle 200 is stopped, so that the gas is suppressed from being retained around the vehicle 200. In this way, the gas in the battery pack 214 can be discharged at an appropriate timing.

[0043] Below, refer to Figure 2 , an example of processing executed by ECU 100 is described. Figure 2 1 is a flowchart showing an example of processing executed by ECU 100. A series of processing shown in this flowchart is repeatedly executed in a predetermined cycle.

[0044] In step (hereinafter referred to as S) 100, the ECU 100 determines whether the gas concentration in the battery pack 214 has increased. For example, the ECU 100 may determine that the gas concentration in the battery pack 214 has increased when the gas concentration in the battery pack 214 detected by the concentration sensor 106 exceeds a threshold value, or may determine that the gas concentration in the battery pack 214 has increased when the amount of change per unit time of the gas concentration exceeds a threshold value. When it is determined that the gas concentration in the battery pack 214 has increased ("Yes" in S100), the process moves to S102.

[0045] In S102, ECU 100 acquires position information from position detection device 104. Thereafter, the process proceeds to S104.

[0046] In S104, ECU 100 acquires the amount of sunlight from sunlight sensor 102. Thereafter, the process proceeds to S106.

[0047] In S106, ECU100 determines whether vehicle 200 is traveling. ECU100 determines that vehicle 200 is traveling, for example, when the speed of vehicle 200 (vehicle speed) calculated using position information is above a threshold value. In addition, ECU100 determines that vehicle 200 is stopped (not traveling), for example, when the vehicle speed is lower than a threshold value. The threshold value is a value used to determine whether vehicle 200 is traveling or stopped, and is appropriately set through experiments or the like. When it is determined that vehicle 200 is traveling ("Yes" in S106), the process transfers to S108.

[0048] In S108, ECU100 determines whether there is no obstruction above vehicle 200. ECU100, for example, uses the position information of vehicle 200 to determine the position of vehicle 200 on the map, and determines whether the determined position of vehicle 200 on the map is a position where there is an obstruction above vehicle 200. ECU100 may also determine that the position of vehicle 200 is a position where there is an obstruction above vehicle 200, for example, when the position of vehicle 200 on the map is a position in a tunnel, a position in an indoor parking lot, or a position in an underground parking lot. Alternatively, ECU100 may also determine that the position of vehicle 200 is a position where there is an obstruction above vehicle 200 and the amount of sunlight is less than a threshold value. When it is determined that there is no obstruction above vehicle 200 ("Yes" in S108), the process is transferred to S110.

[0049] In S110, ECU100 determines whether the position of vehicle 200 is a position not affected by emissions. ECU100 may determine that the position of vehicle 200 is a position not affected by gas emissions, for example, when the position of vehicle 200 is a predetermined area and the current time is within a predetermined time period. The predetermined area (equivalent to the first area) includes, for example, areas other than residential areas (equivalent to the second area) where the impact caused by exhaust gas is low. The predetermined time period includes, for example, time periods such as nighttime and late night when there are few people. When it is determined that the position of vehicle 200 is a position not affected by emissions ("Yes" in S110), the process transfers to S112.

[0050] In S112, ECU 100 executes a gas discharge process. The gas discharge process includes a process of operating opening and closing mechanism 260 to enable gas to flow from one end of first discharge conduit 250 to the other end of second discharge conduit 258. The process then ends.

[0051] In addition, when it is determined that the gas concentration in the battery pack 214 has not increased ("No" in S100), when it is determined that the vehicle 200 is not moving (i.e., stopped) ("No" in S106), when it is determined that there is an obstruction above the vehicle 200 ("No" in S108), or when it is determined that the position of the vehicle 200 is a position affected by the discharge ("No" in S110), the processing ends.

[0052] An example of the operation of ECU 100 based on the above-described structure and flowchart will be described.

[0053] For example, it is assumed that gas is generated inside any battery cell of the battery module in the battery pack 214 due to deterioration or the like, and the generated gas flows out from the safety valve of the battery cell or the like. When the generated gas flowing out of the battery cell increases, the sulfur component contained in the gas also increases. As a result, the concentration of hydrogen sulfide generated by the sulfur component of the gas flowing out into the battery pack 124 and the moisture contained in the air in the battery pack 124 also increases.

[0054] Therefore, when the gas concentration exceeds the threshold value (YES in S100 ), the position information of the vehicle 200 is acquired using the position detection device 104 ( S102 ), and the amount of sunlight on the vehicle 200 is acquired using the sunlight sensor 102 ( S104 ).

[0055] When it is determined that vehicle 200 is traveling (YES in S106 ), there is no obstruction above vehicle 200 (YES in S108 ), and there is no influence of gas discharge (YES in S110 ), gas discharge processing is executed ( S112 ).

[0056] Figure 3 It is a diagram for explaining the exhaust path of gas. Figure 3 The structure of the vehicle 200 shown is similar to Figure 1 The structure of the vehicle 200 shown is the same, so the detailed description thereof will not be repeated.

[0057] When the gas exhaust process is executed, the opening and closing mechanism is in a flow-enabled state, so the outside of the vehicle and the inside of the battery pack 214 are in a communication state through the first exhaust duct 250 and the second exhaust duct 258. The pressure inside the battery pack 214 increases due to the gas generated in the battery pack 214, or the gas in the battery pack 214 is introduced into the first exhaust duct 250 due to the driving of a fan (not shown). The gas introduced into the first exhaust duct 250 is as follows: Figure 3 As shown by the dotted arrows, the gas flows to the outside of the vehicle through the first exhaust conduit 250 and the second exhaust conduit 258. When the gas passes through the first filter 252, the second filter 256 and the desulfurizing agent 254, the sulfur component contained in the gas is adsorbed, and the gas containing other components is discharged to the outside of the vehicle.

[0058] On the other hand, when the vehicle 200 is stopped (No in S106), or when the vehicle 200 is running (Yes in S106) and there is an obstruction above the vehicle 200 such as a tunnel (No in S108), or when it is determined that there is an influence caused by the exhaust gas (No in S110), the gas exhaust process is not performed. In this case, the gas in the battery pack 214 is not exhausted to the outside of the vehicle.

[0059] As described above, according to the vehicle 200 of this embodiment, it is possible to discharge gas to the outside of the vehicle or suppress discharge according to the driving state of the vehicle 200 and the position of the vehicle 200, so that it is possible to discharge gas generated in the battery module of the all-solid-state battery in the battery pack 214 at an appropriate time. Therefore, it is possible to provide a vehicle and a control method of the vehicle that can discharge gas in the battery pack at an appropriate time.

[0060] In particular, the exhaust gas is diffused during driving, so the amount of gas in the battery pack can be reduced by exhausting the gas outside the vehicle. In addition, the gas can be prevented from stagnating around the vehicle due to exhausting the gas outside the vehicle during stopping, and the stagnant gas can be prevented from intruding into the vehicle.

[0061] Furthermore, when it is determined that there is an obstruction above the vehicle 200, there is a high possibility that there is a wall or the like in any direction around the vehicle due to the side walls of a tunnel, an indoor parking lot, etc. Therefore, when there is an obstruction above the vehicle 200, the gas is not discharged to the outside of the vehicle, thereby suppressing the gas from stagnation around the vehicle. On the other hand, when there is no obstruction above the vehicle 200, there is a low possibility that there is a wall in any direction around the vehicle. Therefore, when there is no obstruction above the vehicle 200, the gas is discharged to the outside of the vehicle, thereby suppressing the impact caused by the exhaust gas even if the gas is discharged to the outside of the vehicle. As a result, the pressure rise in the battery pack 214 due to the gas can be suppressed.

[0062] Modifications are described below.

[0063] In the above embodiment, the case where the gas generated from any battery cell of the battery module 212 in the battery pack 214 is a gas containing hydrogen sulfide is described as an example, but the present invention is not particularly limited to a gas containing hydrogen sulfide.

[0064] Furthermore, in the above-described embodiment, the vehicle speed is calculated using the position detection device 104 , but the vehicle speed may be calculated by detecting the wheel speed, for example.

[0065] Furthermore, in the above-mentioned embodiment, when the gas discharge process is performed, one end of the first discharge conduit 250 and the other end of the second discharge conduit 258 are connected via the opening and closing mechanism 260, and the fan is driven to forcibly discharge the gas in the battery pack 214 to the outside of the vehicle. However, the opening and closing mechanism 260 may be omitted, and the connection state is set at normal times, and the fan is driven only when the gas discharge process is performed to forcibly discharge the gas in the battery pack 214 to the outside of the vehicle. Thus, when the connection state is set at normal times, air enters and exits between the battery pack 214 and the outside of the vehicle, and the pressure in the battery pack 214 can be kept constant. In addition, as the gas concentration increases, the fan is driven according to the position and driving state of the vehicle 200, so that the gas in the battery pack 214 can be discharged to the outside of the vehicle at an appropriate time. In addition, in this case, hydrogen sulfide contained in the gas is adsorbed by the desulfurizer 254 both at normal times and when the gas concentration increases.

[0066] Furthermore, in the above embodiment, an example is given in which the gas in the battery pack 214 is discharged to the outside of the vehicle by connecting one end of the first exhaust duct 250 and the other end of the second exhaust duct 258, but the flow rate of the gas discharged to the outside of the vehicle may be adjusted by using a fan or a regulating valve, for example.

[0067] ECU100 may adjust the flow rate of the gas discharged to the outside of the vehicle according to the vehicle speed, for example. ECU100 may control the fan or the regulating valve so that the flow rate increases as the vehicle speed increases and decreases as the vehicle speed decreases.

[0068] As a result, the faster the vehicle speed, the more widely the exhausted gas spreads, so a large amount of gas can be exhausted to the outside of the vehicle without affecting the surroundings, thereby reducing the pressure in the battery pack 214. In addition, the slower the vehicle speed, the less widely the gas can spread compared to a high vehicle speed, so by appropriately adjusting the flow rate, the gas in the battery pack 214 can be exhausted to the outside of the vehicle without affecting the surroundings.

[0069] Furthermore, in the above-mentioned embodiment, it is described that the gas exhaust process is executed when the execution conditions including the condition that the vehicle 200 is traveling, the condition that there is no obstruction above the vehicle 200, and the condition that there is no exhaust influence in the place are satisfied, but the execution condition is not particularly limited to such conditions. For example, instead of the condition that there is no obstruction above the vehicle 200, the condition that there is no obstacle such as a wall in the predetermined area centered on the vehicle 200 may be included as the execution condition. The ECU 100 may also use, for example, a camera that captures the surroundings of the vehicle 200, a distance measuring sensor disposed at multiple locations around the vehicle 200, etc., to determine whether there is an obstacle such as a wall in the predetermined area centered on the vehicle 200. For example, the ECU 100 may also use a camera, a distance measuring sensor, etc. to detect an obstacle such as a wall or another vehicle in at least any one direction of multiple directions including the front, rear, left, and right of the vehicle 200 within a predetermined distance corresponding to each direction from the vehicle 200, and determine that there is an obstacle in the predetermined area.

[0070] Furthermore, all or part of the above-mentioned modifications may be appropriately combined and implemented.

[0071] Although the embodiments of the present invention have been described, the embodiments disclosed this time are illustrative in all points and should not be construed as limiting the present invention. The scope of the present invention is indicated by the claims, and all modifications within the meaning and scope equivalent to the claims are intended to be included.

Claims

1. A vehicle comprising: A battery pack having a secondary battery; a discharge device configured to discharge gas generated by the secondary battery in the battery pack to the outside of the vehicle; A detection device for detecting at least any one of a position of a vehicle and a driving state of the vehicle; as well as The control device controls the discharge device so as to discharge the gas to the outside of the vehicle when the detection result of the detection device is a predetermined detection result.

2. The vehicle according to claim 1, wherein: The detection device detects the vehicle speed, The control device controls the discharge device so that the gas is discharged to the outside of the vehicle when the vehicle is detected to be at the vehicle speed during traveling, and the gas is not discharged to the outside of the vehicle when the vehicle is detected to be at the vehicle speed during stopping.

3. The vehicle according to claim 1, wherein: The control device controls the exhaust device in such a manner that the gas is exhausted to the outside of the vehicle when the position of the vehicle is detected to be within a first area, and the gas is not exhausted to the outside of the vehicle when the position of the vehicle is detected to be within a second area different from the first area. The first region is set in advance as a region where the influence of the exhaust of the gas is lower than that of the second region.

4. The vehicle according to claim 1, wherein: The control device controls the exhaust device in such a manner that the gas is exhausted to the outside of the vehicle when the position of the vehicle is a position where the upper part of the vehicle is not blocked, and the gas is not exhausted to the outside of the vehicle when the position of the vehicle is a position where the upper part of the vehicle is blocked.

5. The vehicle according to any one of claims 1 to 4, wherein: The battery pack includes an all-solid-state battery, The gas contains hydrogen sulfide.

6. A method for controlling a vehicle equipped with a battery pack having a secondary battery, wherein: The vehicle includes a discharge device configured to discharge gas generated by the secondary battery in the battery pack to the outside of the vehicle, The vehicle control method comprises: a step of detecting at least any one of the position of the vehicle and the driving state of the vehicle; and The step of controlling the discharge device so as to discharge the gas to the outside of the vehicle when the detection result is a predetermined detection result.

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