Vehicle and control method of the vehicle

The vehicle system discharges hydrogen sulfide gas based on vehicle speed and position to prevent accumulation and diffusion, addressing the issue of gas buildup in battery packs.

JP2024175839AInactive Publication Date: 2024-12-19TOYOTA JIDOSHA KK
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Patent Information

Application Number
JP2023093881
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-06-07
Publication Date
2024-12-19
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing technologies suppress the discharge of hydrogen sulfide gas from battery packs to the outside of vehicles, leading to accumulation within the vehicle, which necessitates controlled discharge at appropriate timings.

Method used

A vehicle equipped with a battery pack, discharge device, detection devices for vehicle state and position, and a control device to manage gas discharge based on vehicle speed, position, and environmental conditions to prevent accumulation and diffusion of hydrogen sulfide.

Benefits of technology

The solution allows for controlled discharge of hydrogen sulfide gas outside the vehicle at appropriate times, reducing its amount within the battery pack without affecting the surroundings and preventing accumulation, especially while the vehicle is running.

✦ Generated by Eureka AI based on patent content.

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Abstract

To allow gas inside a battery pack to be exhausted at an appropriate timing.SOLUTION: An ECU executes processing that includes: a step (S102) for acquiring positional information when a gas concentration in a battery pack is determined to be increasing (YES in S100); a step (S104) for acquiring an amount of solar radiation; and a step (S112) for implementing gas exhaust processing if a vehicle is determined to be traveling (YES in S106), a shield is determined to be non-existing at an upper part (NO in S108), and a place is determined to lack exhaustion impact (YES in S110).SELECTED DRAWING: Figure 2
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Description

[Technical field]

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

[0002] For example, JP 2022-012308 A (Patent Document 1) discloses a technology that inhibits the operation of a cooling device when the concentration of gas containing hydrogen sulfide in a battery pack is higher than a threshold value, thereby suppressing emissions outside the vehicle. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2022-012308 Summary of the Invention [Problem to be solved by the invention]

[0004] However, if the gas discharge to the outside of the vehicle is restricted, the battery pack will become filled with gas, and therefore there are cases where it is necessary to discharge the gas in the battery pack to the outside of the vehicle at an appropriate time.

[0005] The present disclosure has been made to solve the above-mentioned problems, and its purpose is to provide a vehicle and a vehicle control method capable of releasing gas from within a battery pack at an appropriate timing. [Means for solving the problem]

[0006] A vehicle according to one aspect of the present disclosure includes a battery pack having a secondary battery, an exhaust device configured to exhaust gas generated from the secondary battery in the battery pack outside the vehicle, a detection device that detects at least one of the position of the vehicle and the driving condition of the vehicle, and a control device that controls the exhaust device so that the gas is exhausted outside the vehicle when the detection result of the detection device is a predetermined detection result.

[0007] In this way, when the detection results of the vehicle's driving condition and the vehicle's position are predetermined detection results, the exhaust device is controlled so that the gas is exhausted outside the vehicle, so that the gas in the battery pack can be exhausted at the appropriate time.

[0008] In this embodiment, the detection device detects the vehicle speed. The control device controls the exhaust device so that the gas is exhausted outside the vehicle when the vehicle speed at which the vehicle is moving is detected, and the gas is not exhausted outside the vehicle when the vehicle speed at which the vehicle is stopped is detected.

[0009] In this way, the gas is discharged outside the vehicle while the vehicle is running, and the discharged gas is dispersed without accumulating, so the amount of gas in the battery pack can be reduced without affecting the surroundings of the vehicle. In addition, the gas is prevented from being discharged outside the vehicle while the vehicle is stopped, so that the gas is prevented from accumulating around the vehicle.

[0010] Furthermore, in this embodiment, the control device controls the exhaust device so that gas is exhausted outside the vehicle when it is detected that the vehicle is located within a first area, and so that gas is not exhausted outside the vehicle when it is detected that the vehicle is located within a second area different from the first area. The first area is set in advance as an area in which the influence of gas exhaust is lower than that of the second area.

[0011] In this way, when the vehicle is located within the first region, the gas is discharged outside 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 located within the second region, the gas is not discharged outside the vehicle, thereby preventing the gas from accumulating around the vehicle in the second region.

[0012] Furthermore, in this embodiment, the control device controls the exhaust device so that gas is exhausted outside the vehicle when the vehicle is positioned in a position where the top of the vehicle is not shielded, and so that gas is not exhausted outside the vehicle when the vehicle is positioned in a position where the top of the vehicle is shielded.

[0013] In this way, when the vehicle is located in a position where the top of the vehicle is not shielded, the gas is discharged outside the vehicle, and the gas is diffused without accumulating around the vehicle, 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 located in a position where the top of the vehicle is shielded, the gas is not discharged outside the vehicle, and therefore accumulation of gas around the vehicle is suppressed.

[0014] In the present embodiment, the battery pack further includes an all-solid-state battery, and the gas includes hydrogen sulfide.

[0015] In this way, gas generated in the all-solid-state battery in the battery pack can be discharged outside the vehicle at an appropriate timing using the detection results of the vehicle's running state and vehicle position.

[0016] A vehicle control method according to another aspect of the present disclosure is a method for controlling a vehicle equipped with a battery pack having a secondary battery. The vehicle includes an exhaust device configured to exhaust gas generated from the secondary battery in the battery pack to the outside of the vehicle. The method includes the steps of detecting at least one of a position of the vehicle and a running state of the vehicle, and controlling the exhaust device to exhaust the gas to the outside of the vehicle when the detection result is a predetermined detection result. Effect of the Invention

[0017] According to the present disclosure, it is possible to provide a vehicle and a vehicle control method capable of releasing gas within a battery pack at an appropriate timing. [Brief description of the drawings]

[0018] [Figure 1] 1 is a diagram showing an example of a configuration of a vehicle according to an embodiment of the present invention; [Diagram 2] 4 is a flowchart showing an example of a process executed by an ECU. [Diagram 3] FIG. 4 is a diagram for explaining a gas discharge path. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] 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 characters and their description will not be repeated.

[0020] In the following, a case where vehicle 200 according to the present embodiment is an electric vehicle will be described as an example. Fig. 1 is a diagram showing an example of the configuration of vehicle 200 according to the present embodiment. Note that 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.

[0021] As shown in FIG. 1, a vehicle 200 includes an ECU (Electronic Control Unit) 100, a solar radiation sensor 102, a position detection device 104, a concentration sensor 106, a battery pack 214, a PCU (Power Control Unit) 216, a MG (Motor Generator) 218, drive wheels 222, and an exhaust device 240.

[0022] The MG 218 is typically an AC rotating electric machine, for example, a three-phase AC synchronous motor with a permanent magnet embedded in the rotor. The MG 218 has a function as an electric motor (motor) and a function as a generator. The output torque of the MG 218 is transmitted to the drive wheels 222 via a reduction gear, a differential gear, etc.

[0023] When braking the vehicle 200, the MG 218 is driven by the drive wheels 222 and operates as a generator. This allows the MG 218 to function as a braking device that performs regenerative braking to convert the kinetic energy of the vehicle 200 into electric power. Regenerative electric power generated by the regenerative braking force of the MG 218 is stored in the battery pack 214.

[0024] The PCU 216 is a power conversion device that converts power bidirectionally between the MG 218 and the battery pack 214. The PCU 216 includes, for example, an inverter and a converter that operate based on a control signal from the ECU 100.

[0025] 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 discharging. The inverter converts the DC power supplied from the converter into AC power to drive the MG 218.

[0026] On the other hand, when charging the battery pack 214, the inverter converts the AC power generated by the MG 218 into DC power and supplies it to the converter. The converter steps down the voltage supplied from the inverter to a voltage suitable for charging the battery pack 214 and supplies it to the battery pack 214.

[0027] Furthermore, the PCU 216 suspends charging and discharging of the battery pack 214 by stopping the operation of the inverter and the converter based on a control signal from the ECU 100. Note that the PCU 216 may be configured without including the converter.

[0028] The battery pack 214 is a power storage device that stores power for driving the MG 218. The battery pack 214 is a rechargeable DC power source, and includes, for example, a battery module 212 configured by connecting a plurality of cells in series. The cell is a secondary battery in which a solid electrolyte is used for ion transfer between a positive electrode and a negative electrode, and is an all-solid-state battery whose constituent members are all solidified. As a material for forming the cell, any material known as a material for forming an all-solid-state battery may be used, and as the solid electrolyte, for example, a sulfide-based material such as sulfide glass may be used. The solid electrolyte may include, for example, 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.

[0029] The exhaust device 240 is configured to be able to exhaust gas generated within 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 a shutter mechanism 260.

[0030] 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 directly above the battery module 212 and faces upward of the battery pack 214. The other end of the first exhaust duct 250 is connected to an upper opening of a case (housing) of the battery pack 214 and is connected to one end of the second exhaust duct 258. A first filter 252 is provided in a passage on one end side of the first exhaust duct 250. A second filter 256 is provided in a 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 a passage between the first filter 252 and the second filter 256 in the first exhaust duct 250.

[0031] One end of the second exhaust duct 258 is connected to the other end of the first exhaust duct 250 as described above. The other end of the second exhaust duct 258 is connected to an opening (not shown) to the outside of the vehicle. A shutter mechanism 260 is provided between one end and the other end of the second exhaust duct 258. The shutter mechanism 260 is configured to be switchable between a blocking state in which the flow path in the second exhaust duct 258 is closed to block the flow of gas and a flow enabling state in which the flow path is opened to allow the flow of gas by an actuator (not shown) driven in response to a control signal from the ECU 100, for example. The second exhaust duct 258 is further provided with a fan (not shown) for forcibly discharging gas in the battery pack 214 to the outside of the vehicle.

[0032] The ECU 100 is connected to a solar radiation sensor 102, a position detection device 104, and a concentration sensor 106.

[0033] The solar radiation sensor 102 is provided so as to be able to receive solar radiation, for example, from a windshield. The solar radiation sensor 102 detects, for example, the amount of solar radiation (amount of heat or energy) received by a light receiving surface per unit time. The solar radiation sensor 102 may be provided, for example, on the roof of the vehicle 200. The solar radiation sensor 102 outputs a signal indicating the detected amount of solar radiation to the ECU 100.

[0034] The position detection device 104 detects position information of the vehicle 200 and outputs a signal indicating the detected position information to the ECU 100. The position detection device 104 may be, for example, a receiver that receives a signal indicating position information from an artificial satellite for position detection such as a Global Positioning System (GPS), or may be a receiver that receives a signal indicating position information from a base station around the vehicle 200 such as a wireless Local Area Network (LAN).

[0035] 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.

[0036] The ECU 100 includes a CPU (Central Processing Unit) and memories (ROM (Read Only Memory) and RAM (Random Access Memory)). The ECU 100 controls each device (for example, the PCU 216 and a shutter mechanism 260 of the exhaust device 240 described later) based on signals received from each sensor and information such as maps and programs stored in the memory so that the vehicle 200 is in a desired state.

[0037] The battery pack 214 mounted on such a vehicle 200 includes a battery module 212 that is a sulfide-based all-solid-state battery. If gas containing sulfur components leaks out of any of the cells constituting the battery module 212, the sulfur components may react with moisture contained in the air inside the battery pack 214 to generate hydrogen sulfide.

[0038] Therefore, for example, if the gas concentration inside the battery pack 214 is higher than a threshold value, it may be possible to suppress emissions outside the vehicle. However, if emissions outside the vehicle are suppressed, the battery pack 214 will become filled with gas, and therefore it may be necessary to release the gas inside the battery pack 214 outside the vehicle at an appropriate time.

[0039] Therefore, in this embodiment, ECU 100 controls the exhaust device so that gas is exhausted outside the vehicle when at least one of the detection results of the position of vehicle 200 and the driving state of vehicle 200 is a predetermined detection result.

[0040] For example, ECU 100 controls exhaust device 240 so that gas is discharged outside the vehicle when a vehicle speed at which vehicle 200 is moving is detected, and so that gas is not discharged outside the vehicle when a vehicle speed at which vehicle 200 is stopped is detected.

[0041] In this manner, gas is discharged outside the vehicle while the vehicle 200 is running, and the discharged gas is diffused without accumulating, so that the amount of gas in the battery pack 214 can be reduced without affecting the surroundings of the vehicle 200. In addition, because the discharge of gas outside the vehicle is suppressed while the vehicle 200 is stopped, the accumulation of gas around the vehicle 200 is suppressed. In this manner, the gas in the battery pack 214 can be discharged at an appropriate timing.

[0042] An example of the process executed by the ECU 100 will be described below with reference to Fig. 2. Fig. 2 is a flowchart showing an example of the process executed by the ECU 100. A series of processes shown in this flowchart is repeatedly executed at predetermined intervals.

[0043] In step (hereinafter, step will be abbreviated as S) 100, ECU 100 determines whether or not the gas concentration in battery pack 214 is increasing. ECU 100 may determine that the gas concentration in battery pack 214 is increasing when the gas concentration in battery pack 214 detected by concentration sensor 106 exceeds a threshold value, for example, or may determine that the gas concentration in battery pack 214 is increasing when the amount of change in gas concentration per unit time exceeds a threshold value. When it is determined that the gas concentration in battery pack 214 is increasing (YES in S100), the process proceeds to S102.

[0044] In S102, ECU 100 acquires position information from position detection device 104. Thereafter, the process proceeds to S104.

[0045] In S104, the ECU 100 acquires the amount of solar radiation from the solar radiation sensor 102. Thereafter, the process proceeds to S106.

[0046] In S106, ECU 100 determines whether vehicle 200 is moving. ECU 100 determines that vehicle 200 is moving, for example, when the speed of vehicle 200 (vehicle speed) calculated using the position information is equal to or greater than a threshold value. ECU 100 also determines that vehicle 200 is stopped (not moving), for example, when the vehicle speed is lower than the threshold value. The threshold value is a value for determining whether vehicle 200 is moving or stopped, and is adapted through experiments or the like. If it is determined that vehicle 200 is moving (YES in S106), the process proceeds to S108.

[0047] In S108, ECU 100 determines whether there is an obstruction above vehicle 200. For example, ECU 100 identifies the position of vehicle 200 on a map using the position information of vehicle 200, and determines whether the identified position of vehicle 200 on the map is a position where there is an obstruction above vehicle 200. ECU 100 may determine that the position of vehicle 200 is a position where there is an obstruction above vehicle 200 when the position of vehicle 200 on the map is a position inside a tunnel, or a position inside an indoor parking lot, or a position inside an underground parking lot. Alternatively, ECU 100 may determine that the position of vehicle 200 is a position where there is an obstruction above vehicle 200 when the position is a position where there is an obstruction above vehicle 200 and the amount of solar radiation is smaller than a threshold value. When it is determined that there is no obstruction above vehicle 200 (YES in S108), the process proceeds to S110.

[0048] In S110, ECU 100 determines whether or not the position of vehicle 200 is a position that is not affected by emissions. ECU 100 may determine that the position of vehicle 200 is a position that is not affected by gas emissions, for example, when vehicle 200 is in a predetermined area and the current time is within a predetermined time period. The predetermined area (corresponding to a first area) includes, for example, areas other than residential areas (corresponding to a second area) that are less affected by gas emissions. The predetermined time period includes, for example, time periods such as nighttime and late night hours with few people on the road. If it is determined that vehicle 200 is a position that is not affected by emissions (YES in S110), the process proceeds to S112.

[0049] In S112, ECU 100 executes a gas discharge process. The gas discharge process includes a process of operating shutter mechanism 260 to allow gas to flow from one end of first exhaust duct 250 to the other end of second exhaust duct 258. Then, the process ends.

[0050] Furthermore, if it is determined that the gas concentration in battery pack 214 is not increasing (NO at S100), if it is determined that vehicle 200 is not moving (i.e., stopped) (NO at S106), if it is determined that there is an obstruction above vehicle 200 (NO at S108), or if it is determined that vehicle 200 is located in a position where emissions are affected (NO at S110), this process is terminated.

[0051] An example of the operation of the ECU 100 based on the above-described structure and flowchart will now be described.

[0052] For example, assume that gas is generated inside any cell of a battery module in battery pack 214 due to deterioration or the like, and the generated gas flows out from a safety valve or the like of the cell. If the amount of gas flowing out of the generated 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 into battery pack 124 and the moisture contained in the air in battery pack 124 also increases.

[0053] Therefore, when the gas concentration exceeds the threshold value (YES in S100), position information of vehicle 200 is obtained using position detection device 104 (S102), and the amount of solar radiation on vehicle 200 is obtained using solar radiation sensor 102 (S104).

[0054] If vehicle 200 is traveling (YES in S106), there is no obstruction above vehicle 200 (YES in S108), and it is determined that there is no effect of gas emission (YES in S110), gas emission processing is executed (S112).

[0055] Fig. 3 is a diagram for explaining the gas exhaust path. The configuration of vehicle 200 shown in Fig. 3 is similar to the configuration of vehicle 200 shown in Fig. 1. Therefore, detailed description thereof will not be repeated.

[0056] When the gas exhaust process is performed, the shutter mechanism is set in a state in which gas can flow, and the outside of the vehicle and the inside of the battery pack 214 are in communication with each other via the first exhaust duct 250 and the second exhaust duct 258. When the pressure in the battery pack 214 increases due to gas generated in the battery pack 214, or when a fan (not shown) is driven, the gas in the battery pack 214 is introduced into the first exhaust duct 250. The gas introduced into the first exhaust duct 250 is circulated to the outside of the vehicle via the first exhaust duct 250 and the second exhaust duct 258, as shown by the dashed arrows in FIG. 3. When the gas passes through the first filter 252, the second filter 256, and the desulfurizing agent 254, sulfur components and the like contained in the gas are adsorbed, and the gas containing other components is exhausted to the outside of the vehicle.

[0057] On the other hand, if vehicle 200 is stopped (NO in S106), or if vehicle 200 is traveling (YES in S106) and there is an obstruction above vehicle 200, such as a tunnel (NO in S108), or if it is determined that there is an effect due to gas emission (NO in S110), the gas emission process is not executed. In this case, gas in battery pack 214 is not emitted to the outside of the vehicle.

[0058] As described above, according to the vehicle 200 according to the present embodiment, gas can be discharged outside the vehicle or the discharge can be suppressed depending on the running state of the vehicle 200 and the position of the vehicle 200, so that gas generated in the battery module of the all-solid-state battery in the battery pack 214 can be discharged at an appropriate timing. Therefore, it is possible to provide a vehicle and a vehicle control method capable of discharging gas in the battery pack at an appropriate timing.

[0059] In particular, when the vehicle is moving, the discharged gas diffuses, so the amount of gas in the battery pack can be reduced by discharging the gas outside the vehicle. Also, when the vehicle is stopped, the gas is prevented from accumulating around the vehicle by suppressing the gas from being discharged outside the vehicle, and the accumulated gas can be prevented from entering the vehicle.

[0060] Furthermore, when it is determined that there is an obstruction above the vehicle 200, it is highly likely that the location is one in which there is a wall in any direction around the vehicle, such as a side wall of a tunnel or a side wall of an indoor parking lot. Therefore, by preventing the gas from being discharged to the outside of the vehicle when there is an obstruction above the vehicle 200, it is possible to suppress the gas from accumulating around the vehicle. On the other hand, when there is no obstruction above the vehicle 200, it is low likely that the location is one in which there is a wall in any direction around the vehicle. Therefore, by allowing the gas to be discharged to the outside of the vehicle when there is no obstruction above the vehicle 200, it is possible to suppress the occurrence of an effect due to the discharge of the gas even if the gas is discharged to the outside of the vehicle. This makes it possible to suppress the increase in pressure due to the gas in the battery pack 214.

[0061] Modifications will be described below. In the above-described embodiment, the gas generated from any cell of the battery module 212 in the battery pack 214 is described as a gas containing hydrogen sulfide as an example, but is not limited to a gas containing hydrogen sulfide.

[0062] Furthermore, in the above embodiment, the vehicle speed is calculated using the position detection device 104. However, for example, the vehicle speed may be calculated by detecting the wheel speed or the like.

[0063] Furthermore, in the above embodiment, when the gas discharge process is performed, the shutter mechanism 260 is connected between one end of the first exhaust duct 250 and the other end of the second exhaust duct 258, and the fan is driven to forcibly discharge the gas in the battery pack 214 to the outside of the vehicle. However, the shutter mechanism 260 may be omitted, and the gas in the battery pack 214 may be connected to the outside of the vehicle only when the gas discharge process is performed. In this way, air flows in and out between the inside of the battery pack 214 and the outside of the vehicle due to the communication state during normal times, and the pressure in the battery pack 214 can be kept constant. In addition, the gas in the battery pack 214 can be discharged to the outside of the vehicle at an appropriate timing by driving the fan according to the position and running state of the vehicle 200 due to an increase in the gas concentration. In this case, the hydrogen sulfide contained in the gas is adsorbed by the desulfurizing agent 254 both during normal times and when the gas concentration is increased.

[0064] Furthermore, in the above-described embodiment, an example has been described in which gas within battery pack 214 is exhausted to the outside of the vehicle by connecting one end of first exhaust duct 250 to the other end of second exhaust duct 258. However, the amount of gas circulating exhausted to the outside of the vehicle may also be adjusted using, for example, a fan or an adjusting valve.

[0065] The ECU 100 may adjust the amount of gas discharged outside the vehicle based on the vehicle speed, for example. The ECU 100 may control a fan or an adjustment valve so that the amount of gas discharged outside the vehicle increases as the vehicle speed increases and decreases as the vehicle speed decreases.

[0066] In this way, the faster the vehicle speed, the more widely the exhausted gas diffuses, so that a large amount of gas can be exhausted outside the vehicle without affecting the surroundings, thereby reducing the pressure inside the battery pack 214. Also, the slower the vehicle speed, the less widely the gas diffuses compared to when the vehicle speed is fast, so by appropriately adjusting the amount of gas flowing, the gas inside the battery pack 214 can be exhausted outside the vehicle without affecting the surroundings.

[0067] Further, in the above embodiment, the gas emission 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 the location is not affected by emission are satisfied. However, the execution conditions are not limited to such conditions. For example, instead of the condition that there is no obstruction above the vehicle 200, the execution condition may include a condition that there is no obstacle such as a wall within a predetermined area centered on the vehicle 200. The ECU 100 may determine whether or not there is an obstacle such as a wall within a predetermined area centered on the vehicle 200, for example, using a camera that captures the surroundings of the vehicle 200 or a distance measuring sensor provided at multiple locations around the vehicle 200. The ECU 100 may determine that there is an obstacle within the predetermined area, for example, when it is detected by a camera, a distance measuring sensor, or the like that there is an obstacle such as a wall or another vehicle within at least one of multiple directions including the forward direction, backward direction, left direction, and right direction of the vehicle 200 and within a predetermined distance corresponding to each direction from the vehicle 200 using a camera, a distance measuring sensor, or the like.

[0068] The above-described modified examples may be implemented in whole or in part in appropriate combination. The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present invention is defined by the claims, not the above description, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0069] 100 ECU, 102 solar radiation sensor, 104 position detection device, 106 concentration sensor, 200 vehicle, 212 battery module, 214 battery pack, 222 drive wheel, 240 exhaust device, 250 first exhaust duct, 252 first filter, 254 desulfurization agent, 256 second filter, 258 second exhaust duct, 260 shutter mechanism.

Claims

1. a battery pack having a secondary battery; an exhaust device configured to exhaust gas generated from the secondary battery in the battery pack to the outside of the vehicle; A detection device that detects at least one of a position of a vehicle and a running state of the vehicle; A vehicle comprising: a control device that controls the exhaust device so that the gas is exhausted outside the vehicle when a detection result of the detection device is a predetermined detection result.

2. The detection device detects a vehicle speed, The control device includes: The gas is discharged to the outside of the vehicle when the vehicle speed is detected to be such that the vehicle is moving; The vehicle according to claim 1 , wherein the exhaust device is controlled so that the gas is not exhausted outside the vehicle when the vehicle speed at which the vehicle is stopped is detected.

3. The control device includes: When the position of the vehicle is detected to be within a first region, the gas is discharged outside the vehicle; controlling the exhaust device so that the gas is not exhausted to the outside of the vehicle when it is detected that the position of the vehicle is within a second area different from the first area; The vehicle according to claim 1 , wherein the first area is preset as an area in which the degree of influence of the emission of the gas is lower than that of the second area.

4. The control device includes: When the vehicle is positioned such that the upper portion of the vehicle is not shielded, the gas is discharged to the outside of the vehicle. The vehicle according to claim 1 , wherein the exhaust device is controlled so that the gas is not exhausted to the outside of the vehicle when the vehicle is positioned in a position where an upper portion of the vehicle is shielded.

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

6. A method for controlling a vehicle equipped with a battery pack having a secondary battery, the vehicle including an exhaust device configured to exhaust gas generated from the secondary battery in the battery pack to an outside of the vehicle, Detecting at least one of a position of the vehicle and a running state of the vehicle; and controlling the exhaust device so that the gas is exhausted outside the vehicle when the detection result is a predetermined detection result.

Citation Information

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