Vehicle battery replacement method and battery replacement station

Abstract

The present application relates to the technical field of vehicle charging and battery swapping, and in particular to a vehicle battery swapping method and a battery swapping station. The method comprises: obtaining vehicle arrival information of a battery swapping position based on the battery swapping station being in a working state; based on the battery swapping position being in a vehicle arrival state, disassembling a battery box on a vehicle at the battery swapping position and loading the battery box onto an empty charging seat, and switching the vehicle to a battery unloading state; based on the vehicle being in the battery unloading state, obtaining the state of charge of all battery boxes in a first region and the state of charge of battery boxes in a lower layer of a second region; based on the number of fully charged battery boxes in the first region being 0 and the number of fully charged battery boxes in the lower layer of the second region being greater than 0, moving the fully charged battery boxes in a horizontal direction towards the battery swapping position; based on the fully charged battery boxes moving in the horizontal direction to be close to the battery swapping position, controlling the battery boxes to rise; and based on the fully charged battery boxes being at the same height as a battery loading position of the vehicle, loading the fully charged battery boxes onto the vehicle. Thus, the problem of how to improve the safety of vehicle battery swapping is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle charging and battery swapping, in particular to a vehicle battery swapping method and a battery swapping station. BACKGROUND

[0002] At present, the main ways for new energy vehicles to supplement energy are charging piles and battery swapping stations. Directly replacing battery boxes in a battery swapping station can greatly shorten the energy supplement time of vehicles, and vehicle owners do not need to wait for a long time, can quickly replace batteries and continue driving, effectively alleviating the problem of insufficient charging piles for pure electric vehicles and range anxiety.

[0003] However, due to the need for fire-fighting equipment and the like for horizontally arranged battery boxes in the battery swapping station, the spacing between adjacent battery boxes is large, and the battery boxes need to be moved a long distance along the horizontal direction to the battery swapping position, which consumes a long time for battery swapping. In a multi-story type battery swapping station, if there is long-distance high-altitude movement, the danger of high-altitude falling is higher than that of low-altitude falling, which may cause a great safety hazard. SUMMARY

[0004] To solve the problem of how to improve the safety of vehicle battery swapping, the present application provides a vehicle battery swapping method and a battery swapping station.

[0005] In a first aspect, the present application provides a vehicle battery swapping method, which comprises:

[0006] Step S10: based on the battery swapping station being in a working state, acquiring vehicle arrival information of a battery swapping position at a preset frequency; the vehicle arrival information comprises a vehicle arrival state and a waiting state; the battery swapping station comprises a battery swapping base station, a plurality of charging seats and a plurality of battery boxes; the battery swapping base station charges the battery boxes through the charging seats; the charging seats are distributed in a first area and a second area; the horizontal distance from the first area to the battery swapping position is less than the horizontal distance from the second area to the battery swapping position; the charging seats are distributed in two layers along the vertical direction; before each battery swapping starts, the number of charging seats is greater than the number of battery boxes in the battery swapping station;

[0007] Step S20: based on the battery swapping position being switched from the waiting state to the vehicle arrival state, disassembling the battery boxes on the vehicle at the battery swapping position and loading them onto empty charging seats, and switching the vehicle to a battery discharging state;

[0008] Step S30: based on the vehicle being in the battery discharging state, acquiring the state of charge of all battery boxes in the first area and the state of charge of battery boxes in the lower layer of the second area;

[0009] Step S40, based on the first region full of the battery box quantity is 0, and the second region lower full of the battery box quantity is greater than 0, the full battery box is grabbed and moved along the horizontal direction towards the battery replacement position;

[0010] Step S50, based on the full battery box moving along the horizontal direction to be close to the battery replacement position, the battery box is controlled to rise;

[0011] Step S60, based on the full battery box and the vehicle charging position being at the same height, the full battery box is loaded to the charging position on the vehicle, and the vehicle is switched to the charging state.

[0012] In some embodiments, the step S20 includes:

[0013] Step S21, based on the battery replacement position being switched from the waiting state to the vehicle arrival state, the loading state of the charging seat in the first region is obtained; the loading state includes full load and empty load;

[0014] Step S22, based on the number of empty charging seats in the first region being greater than 0, the battery box on the vehicle at the battery replacement position is disassembled and loaded on the empty charging seat, and the vehicle is switched to the discharging state.

[0015] In some embodiments, the step S30 includes:

[0016] Step S31, based on the vehicle being in the discharging state, the state of charge of all battery boxes in the first region is obtained;

[0017] Step S32, based on the number of full battery boxes in the first region being greater than 0, the full battery box is grabbed and loaded on the charging position on the vehicle, and the vehicle is switched to the charging state;

[0018] Step S33, based on the number of full battery boxes in the first region being 0, the state of charge of the battery box in the lower layer of the second region is obtained.

[0019] In some embodiments, the vehicle battery replacement method further includes:

[0020] Step S70, based on the vehicle being in the charging state or the battery replacement position being switched from the vehicle arrival state to the waiting state, the loading state of the charging seat in the first region is obtained; when the battery replacement position is in the waiting state, the number of charging seats is equal to the number of battery boxes plus 1;

[0021] Step S80, based on the charging bases in the first region being in full load state, adjusting the battery box with the lowest state of charge in the first region to the charging base in the second region in empty load state.

[0022] In some embodiments, the step S80 comprises:

[0023] Step S81, based on the charging bases in the first region being in full load state, obtaining the state of charge of the battery box in the first region and the position of the charging base in the second region in empty load state.

[0024] Step S82, based on the charging base in the second region in empty load state being in the upper layer, adjusting the battery box with the lowest state of charge in the first region to the charging base in the second region in empty load state.

[0025] In some embodiments, the step S82 comprises:

[0026] Step S821, based on the charging base in the second region in empty load state being in the lower layer, adjusting the position of the charging base until the charging base in empty load state is in the upper layer.

[0027] Step S822, based on the charging base in the second region in empty load state being in the upper layer, adjusting the battery box with the lowest state of charge in the first region to the charging base in the second region in empty load state.

[0028] In some embodiments, the vehicle battery swapping method further comprises:

[0029] Step S90, based on the number of charging bases in the first region in empty load state being greater than 0 and the battery swapping position being in waiting state, adjusting the charging base in the first region in empty load state to be in the upper layer position of the first region.

[0030] In some embodiments, the step S90 comprises:

[0031] Step S91, based on the number of charging bases in the first region in empty load state being greater than 0, obtaining the position information of the charging base in the first region in empty load state.

[0032] Step S92, based on the charging base in the first region in empty load state being in the upper layer, controlling the battery swapping station to be in standby state.

[0033] Step S93, based on the charging base in the first region in empty load state being in the lower layer and the battery swapping position being in waiting state, adjusting the charging base in empty load state to the upper layer of the first region.

[0034] In a second aspect, the present application provides a battery swap station for use in the vehicle battery swap method of any of the above embodiments, the battery swap station comprising:

[0035] a battery swap base station, one side of the battery swap base station being a battery swap position for a vehicle;

[0036] a plurality of charging bays, the plurality of charging bays being distributed in a first area and a second area of the battery swap station, the first area being closer to the battery swap position than the second area, the charging bays being vertically distributed in two layers;

[0037] a plurality of fire-fighting devices, the fire-fighting devices being staggered with the charging bays, the fire-fighting devices corresponding to the charging bays one by one, the fire-fighting devices being detachably connected to the charging bays;

[0038] a plurality of battery boxes, the battery swap base station charging the battery boxes through the charging bays, the number of charging bays being greater than the number of battery boxes in the battery swap station before each battery swap starts.

[0039] In some embodiments, the charging bays are arranged in multiple rows along a first horizontal direction, the charging bays are arranged in two columns along a second horizontal direction, the first horizontal direction is perpendicular to the second horizontal direction, the two columns of charging bays have a transfer channel therebetween, the charging bays in the lower layer are slidably connected to the battery swap base station along the second horizontal direction, and the number of charging bays is equal to the number of battery boxes in the battery swap station plus one before each battery swap starts.

[0040] To solve the problem of how to improve the safety of vehicle battery swap, the present application has the following advantages:

[0041] When the vehicle information at the battery swap position obtained by the battery swap station is a coming vehicle state, the battery box on the vehicle can be detached and loaded to the empty charging bay for charging. Then, the state of charge of the battery boxes in the first area and the lower layer of the second area is obtained, so as to select the fully charged battery box to be loaded to the vehicle. When there is no fully charged battery box in the first area but there is a fully charged battery box in the lower layer of the second area, the fully charged battery box in the lower layer of the second area can be preferentially grabbed, moved to the vicinity of the battery swap position along the horizontal direction, and then lifted to be finally loaded to the charging position of the vehicle. Thus, the battery box can be moved as low as possible, avoiding long-distance movement of the battery box at a high altitude, reducing the risk of falling from a high altitude, and ensuring the safety of battery swap. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 FIG. 1 shows a flowchart of a vehicle battery swap method according to an embodiment;

[0043] Figure 2 FIG. 2 shows a schematic diagram of a battery swap station according to an embodiment;

[0044] Figure 3 A front view schematic diagram of the battery swap station in an embodiment is shown. Figure 2 A front view schematic diagram of the battery swap station in an embodiment is shown.

[0045] Figure 4 A front view schematic diagram of the battery swap station in an embodiment is shown. Figure 3 A front view schematic diagram of the battery swap station in an embodiment is shown.

[0046] Figure 5 A front view schematic diagram of the battery swap station in an embodiment is shown. Figure 2 A front view schematic diagram of the battery swap station in an embodiment is shown.

[0047] Figure 6 A front view schematic diagram of the battery swap station in an embodiment is shown. Figure 2 A front view schematic diagram of the battery swap station in an embodiment is shown.

[0048] Reference signs: 10 battery swap base station; 20 charging seat; 30 fire-fighting equipment; 40 battery box; 50 battery swap position; 60 first area; 70 second area; 80 transfer channel. DETAILED DESCRIPTION

[0049] The present disclosure will now be discussed with reference to several example embodiments. It should be appreciated that these embodiments are discussed only to better illustrate the present disclosure and are not intended to limit the scope of the present disclosure in any way.

[0050] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0051] In this embodiment, in a battery swapping station of the multi-layer battery box type 40, because the horizontally arranged battery boxes 40 need to be equipped with fire-fighting equipment 30, the spacing between horizontally adjacent battery boxes 40 is relatively large, and transferring the battery boxes 40 horizontally towards the swapping location 50 requires moving a long distance. If the battery boxes 40 involve long-distance high-altitude movement, the movement speed is slow, and the risk of a battery box 40 falling from a height is higher than that of a low-altitude fall, which will affect the battery swapping efficiency and pose a significant safety hazard. Therefore, this embodiment discloses a vehicle battery swapping method. Figure 1 As shown, the vehicle battery swapping method includes steps S10 to S60, which are described in detail below:

[0052] Step S10, based on the battery swap station being in a working state, obtaining vehicle arrival information of the battery swap position 50 at a preset frequency. The vehicle arrival information can include a vehicle arrival state and a waiting state. In the vehicle arrival state, the vehicle is ready to replace the battery box 40. The battery swap station includes a battery swap base station 10, a plurality of charging seats 20, and a plurality of battery boxes 40. The battery swap base station 10 charges the battery box 40 through the charging seat 20. The charging seats 20 are distributed in a first area 60 and a second area 70. The horizontal distance from the first area 60 to the battery swap position 50 is less than the horizontal distance from the second area 70 to the battery swap position 50. The charging seats 20 are distributed in two layers along the vertical direction. Before each battery swap starts, the number of charging seats 20 is greater than the number of battery boxes 40 in the battery swap station, ensuring that there is a spare charging seat 20 for the battery box 40 removed from the vehicle to be charged.

[0053] Step S20, based on the battery swap position 50 switching from the waiting state to the vehicle arrival state, removing the battery box 40 on the vehicle at the battery swap position 50 and loading it onto the empty charging seat 20, and the vehicle switching to the battery removal state.

[0054] Step S30, based on the vehicle being in the battery removal state, obtaining the state of charge of all battery boxes 40 in the first area 60 and the state of charge of the battery boxes 40 in the lower layer of the second area 70. That is, it is determined whether the power of the battery boxes 40 in the first area 60 and the lower layer of the second area 70 meets the vehicle battery replacement requirement. Since the upper layer of the second area 70 is far away and the battery box 40 is high, in order to avoid long-distance movement of the battery box 40 at a high altitude, the state of charge of the battery boxes 40 in the lower layer of the second area 70 is preferentially obtained. The charging seats 20 in the upper layer of the second area 70 are kept in the state of charging the battery box 40 that is not fully charged for as long as possible, so the charging seats 20 in the upper and lower layers of the second area 70 have clear functional division.

[0055] Step S40, based on the number of fully charged battery boxes 40 in the first area 60 being 0 and the number of fully charged battery boxes 40 in the lower layer of the second area 70 being greater than 0, the fully charged battery box 40 is moved along the horizontal direction towards the battery swap position 50. At this time, the fully charged battery box 40 in the lower layer of the second area 70 is pushed out and grabbed, and the battery box 40 can quickly move towards the battery swap position 50 along the horizontal direction at a low altitude, saving battery swap time while avoiding the battery box 40 falling from a high altitude.

[0056] Step S50, based on the fully charged battery box 40 moving along the horizontal direction to be close to the battery swap position 50, controlling the battery box 40 to rise. At this time, the battery box 40 moves a short distance at a high altitude, with low risk of falling from a high altitude.

[0057] Step S60, based on the fully charged battery box 40 being at the same height as the battery loading position of the vehicle, loading the fully charged battery box 40 to the battery loading position on the vehicle, and the vehicle switching to the battery loading state.

[0058] Through the above method, when the vehicle replaces the battery box 40, the battery swap station can preferentially grasp the full battery box 40 at a long distance, so that the battery box 40 moves as far as possible in a low altitude along a horizontal direction, thereby ensuring the battery swap efficiency and safety.

[0059] In the embodiment, the step S20 can include:

[0060] In step S21, based on the battery swap position 50 switching from the waiting state to the vehicle arrival state, the loading state of the charging seat 20 in the first area 60 is obtained. The loading state includes full load and empty load. Full load means that the battery box 40 is charging in the charging seat 20.

[0061] In step S22, based on the number of empty charging seats 20 in the first area 60 being greater than 0, the battery box 40 on the vehicle of the battery swap position 50 is disassembled and loaded on the empty charging seat 20, and the vehicle switches to the battery disassembly state.

[0062] Through the above method, after the battery box 40 on the vehicle is disassembled, it can be preferentially loaded on the charging seat 20 in the first area 60, thereby reducing the moving distance of the disassembled battery box 40 and achieving the purpose of rapid disassembly. Then, the full battery box 40 in the first area 60 or the second area 70 can be grasped and loaded on the battery loading position of the vehicle. Since the disassembly process is fast, it will not affect the overall battery swap time, so that the overall battery swap time depends only on the time of grasping the full battery box 40, thereby facilitating the improvement of the battery swap efficiency.

[0063] In the embodiment, the step S30 can include:

[0064] In step S31, based on the vehicle being in the battery disassembly state, the state of charge of all battery boxes 40 in the first area 60 is obtained.

[0065] In step S32, based on the number of full battery boxes 40 in the first area 60 being greater than 0, the full battery box 40 is grasped and loaded on the battery loading position of the vehicle, and the vehicle switches to the battery loading state.

[0066] In step S33, based on the number of full battery boxes 40 in the first area 60 being 0, the state of charge of the battery box 40 in the lower layer of the second area 70 is obtained.

[0067] Through the above method, the battery swap station can preferentially grasp the full battery box 40 in the first area 60, so that the disassembled battery box 40 and the installed battery box 40 on the vehicle are preferentially selected from the first area 60, thereby reducing the moving path of the battery box 40 during replacement and improving the battery swap efficiency. Only when there is no battery box 40 in the first area 60 that meets the battery swap requirements of the vehicle, the battery box 40 in the lower layer of the second area 70 is considered to be grasped for replacement, thereby reducing the time length of the high-altitude movement of the battery box 40.

[0068] In the embodiment, the vehicle battery replacement method can further include:

[0069] In step S70, based on the vehicle being in the battery loading state or the battery replacement position 50, the state of the vehicle is switched to the waiting state, and the loading state of the charging seat 20 in the first area 60 is obtained. When the battery replacement position 50 is in the waiting state, the number of charging seats 20 is equal to the number of battery boxes 40 plus one, so that there is always only one empty charging seat 20 reserved before the battery replacement, thereby improving the utilization rate of the charging seat 20 of the battery replacement station.

[0070] In step S80, based on the charging seat 20 in the first area 60 being in the full load state, the battery box 40 with the lowest state of charge in the first area 60 is adjusted to the empty charging seat 20 in the second area 70.

[0071] Through the above method, the battery box 40 with the lowest state of charge (the least amount of electricity) in the first area 60 can be moved to the empty charging seat 20 in the second area 70 during the gap when the last vehicle completes the battery replacement preparation and the next vehicle has not arrived, so that the disassembled battery box 40 can be quickly loaded in the first area 60 during the subsequent vehicle battery replacement, thereby improving the efficiency of disassembling the battery box 40 from the vehicle.

[0072] In the embodiment, step S80 can include:

[0073] In step S81, based on the charging seat 20 in the first area 60 being in the full load state, the state of charge of the battery box 40 in the first area 60 and the position of the empty charging seat 20 in the second area 70 are obtained.

[0074] In step S82, based on the empty charging seat 20 in the second area 70 being located on the upper layer, the battery box 40 with the lowest state of charge in the first area 60 is adjusted to the empty charging seat 20 in the second area 70.

[0075] Through the above method, during the adjustment of the charging position of the battery box 40, the battery box 40 with the least amount of electricity in the first area 60 is preferentially loaded to the empty charging seat 20 on the upper layer of the second area 70, so that the charging seat 20 on the upper layer of the second area 70 is kept in the full load state as much as possible, and the battery box 40 on the upper layer of the second area 70 is the battery box 40 with the least amount of electricity that has just arrived at the battery replacement station 10, thereby keeping the charging seat 20 on the upper layer of the second area 70 in the charging state for a long time, reducing the number of times of grabbing the battery box 40 from the upper layer of the second area 70, and enabling the battery box 40 to be grabbed from the lower layer of the second area 70 and quickly moved along the horizontal direction, thereby avoiding the long path of first descending, then moving, and finally ascending to load the battery box 40 to the vehicle from the upper layer of the second area 70, and further improving the battery replacement efficiency and avoiding the safety hazard of long-distance movement of the battery box 40 in the high altitude.

[0076] In the embodiment, the step S82 can include:

[0077] In the step S821, based on the idle charging base 20 of the second area 70 being located at the lower layer, the position of the charging base 20 is adjusted until the idle charging base 20 of the second area 70 is located at the upper layer. At this time, the battery box 40 with the highest state of charge in the upper layer of the second area 70 can be loaded onto the charging base 20 at the lower layer.

[0078] In the step S822, based on the idle charging base 20 of the second area 70 being located at the upper layer, the battery box 40 with the lowest state of charge in the first area 60 is adjusted to the idle charging base 20 of the second area 70. Thus, the idle state of the charging base 20 in the first area 60 is ensured, and the battery box 40 to be disassembled from the vehicle is quickly loaded to the charging base 20 in the first area 60 for charging, thereby improving the battery replacement efficiency.

[0079] Through the above method, the charging base 20 at the upper layer of the second area 70 is always in a full load state, and the number of times of being grabbed during the battery replacement process is reduced. The state of charge of the battery box 40 in the first area 60 and the battery box 40 at the lower layer of the second area 70 is relatively good, which can ensure that the battery box 40 moves along the horizontal direction at a low altitude, and avoid the safety hazard of long-distance movement of the battery box 40 at a high altitude.

[0080] In the embodiment, the vehicle battery replacement method can further include:

[0081] In the step S90, based on the number of idle charging bases 20 in the first area 60 being greater than 0 and the battery replacement position 50 being in a waiting state, the idle charging base 20 in the first area 60 is adjusted to be located at the upper layer position of the first area 60.

[0082] As Figure 4As shown, the charging bases 20 are arranged in multiple rows along a first horizontal direction. The charging bases 20 are arranged in two columns along a second horizontal direction. The first horizontal direction is perpendicular to the second horizontal direction. The two columns of charging bases 20 have a transfer channel 80 therebetween. In order to save the floor space of the battery swap station, the charging bases 20 in the lower layer of the two columns can share the same transfer channel 80. Since the battery boxes 40 in the lower layer need to be moved to the transfer channel 80 by the charging bases 20 before being gripped, when the charging bases 20 in one column of the lower layer extend to the transfer channel 80, the battery boxes 40 in the other column of the lower layer arranged oppositely will be blocked. By the above method, the battery boxes 40 in the first area 60 can be scheduled so that the charging bases 20 in the first area 60 that are empty are located in the upper layer of the first area 60. For the case that the charging bases 20 in the first area 60 that are empty are located in the lower layer of the first area 60, when the battery boxes 40 removed from the vehicle are loaded to the lower layer of the first area 60, the battery boxes 40 in the lower layer on the opposite side will be blocked, so that when the battery boxes 40 full of electricity are gripped, it is not convenient to grip the battery boxes 40 full of electricity even if the battery boxes 40 full of electricity are blocked, which results in that there is one less choice for gripping the battery boxes 40 full of electricity, and further affects the gripping efficiency. After the charging bases 20 that are empty are adjusted to the upper layer of the first area 60 in the embodiment, the problem is effectively avoided, and the battery swap efficiency is improved.

[0083] In the embodiment, step S90 can include:

[0084] Step S91, based on the number of charging bases 20 in the first area 60 that are empty being greater than 0, obtaining the position information of the charging bases 20 in the first area 60 that are empty.

[0085] Step S92, based on the charging bases 20 in the first area 60 that are empty being located in the upper layer, controlling the battery swap station to be in a standby state.

[0086] Step S93, based on the charging bases 20 in the first area 60 that are empty being located in the lower layer and the battery swap position 50 being in a waiting state, adjusting the charging bases 20 that are empty to the upper layer of the first area 60.

[0087] By the above method, any battery box 40 in the upper layer of the first area 60 can be adjusted to the lower layer of the first area 60, so that the charging bases 20 in the first area 60 that are empty are located in the upper layer of the first area 60, thereby avoiding affecting the gripping and loading of the battery boxes 40 full of electricity in the lower layer of the first area 60 when the battery boxes 40 removed from the vehicle are loaded to the charging bases 20 for charging, and improving the battery swap efficiency.

[0088] In the embodiment, as shown in Figure 2 , Figure 3 , Figure 5 , Figure 6 The embodiment discloses a battery swap station, which is applied to the vehicle battery swap method in any of the above embodiments. As shown in Figure 4As shown, the battery swap station can include a battery swap base station 10, a plurality of charging seats 20, a plurality of fire-fighting devices 30, and a plurality of battery boxes 40. One side of the battery swap base station 10 is a battery swap position 50 for a vehicle. The plurality of charging seats 20 are distributed in a first area 60 and a second area 70 of the battery swap station. The horizontal distance from the first area 60 to the battery swap position 50 is less than the horizontal distance from the second area 70 to the battery swap position 50. The charging seats 20 are vertically distributed in two layers, so that a larger number of battery boxes 40 can be stored. The fire-fighting devices 30 are staggered with the charging seats 20. The fire-fighting devices 30 correspond one-to-one to the charging seats 20. The fire-fighting devices 30 are detachably connected to the charging seats 20. The battery swap base station 10 charges the battery boxes 40 through the charging seats 20. Before each battery swap starts, the number of charging seats 20 is greater than the number of battery boxes 40 in the battery swap station, ensuring that the battery boxes 40 removed by the vehicle can be charged on the empty charging seats 20.

[0089] In other embodiments, the charging seats 20 in the lower layer can drive the battery boxes 40 to slide horizontally, so that the battery swap station avoids the battery boxes 40 in the upper layer when grabbing the battery boxes 40 in the lower layer, improving the battery swap efficiency.

[0090] In the present embodiment, as shown, Figure 4 The charging seats 20 are arranged in multiple rows along a first horizontal direction. The charging seats 20 are arranged in two columns along a second horizontal direction. The first horizontal direction is perpendicular to the second horizontal direction. The two columns of charging seats 20 have a transfer channel 80 therebetween. Through the above arrangement, the battery boxes 40 loaded on the two columns of charging seats 20 share one transfer channel 80, which can further store more battery boxes 40 and improve the space utilization.

[0091] The charging seats 20 in the lower layer are slidably connected to the battery swap base station 10 along the second horizontal direction, facilitating the battery swap station to grab the battery boxes 40 in the lower layer or load the battery boxes 40 to the charging seats 20 in the lower layer. Before each battery swap starts, the number of charging seats 20 is equal to the number of battery boxes 40 in the battery swap station plus one, ensuring that the battery boxes 40 removed by the vehicle can be charged on the empty charging seats 20, and improving the utilization of the charging seats 20.

[0092] Those skilled in the art can understand that the above embodiments are specific cases for implementing the present disclosure, and in actual applications, various changes can be made in form and details without departing from the scope of the present disclosure.

Claims

1. A vehicle battery swapping method, characterized in that, Vehicle battery swapping methods include: Step S10: Based on the battery swapping station being in operation, acquire vehicle arrival information at the battery swapping location at a preset frequency; the vehicle arrival information includes the vehicle arrival status and waiting status; the battery swapping station includes a battery swapping base station, multiple charging stations, and multiple battery boxes; the battery swapping base station charges the battery boxes through the charging stations; the charging stations are distributed in a first area and a second area; the horizontal distance from the first area to the battery swapping location is less than the horizontal distance from the second area to the battery swapping location; the charging stations are distributed in two layers vertically; before each battery swap begins, the number of charging stations is greater than the number of battery boxes in the battery swapping station; the charging stations are arranged in multiple rows along a first horizontal direction; the charging stations are arranged in two columns along a second horizontal direction; the first horizontal direction and the second horizontal direction are perpendicular to each other; there is a transfer channel between the two columns of charging stations; the charging station located on the lower layer is slidably connected to the battery swapping base station along the second horizontal direction; the first area and the second area are arranged along the first horizontal direction; the first horizontal direction is the horizontal direction from the battery swapping location to the first area; Step S20: Based on the battery swapping location changing from a waiting state to an arriving vehicle state, the battery box on the vehicle at the battery swapping location is removed and loaded onto an empty charging dock in the upper part of the first area, and the vehicle is switched to a de-energized state. Step S30: Based on the vehicle being in a de-energized state, obtain the state of charge of all battery boxes in the first area and the state of charge of the battery boxes in the lower layer of the second area. Step S40: Based on the fact that the number of fully charged battery boxes in the first area is 0 and the number of fully charged battery boxes in the lower layer of the second area is greater than 0, grab the fully charged battery box in the lower layer of the second area and move it horizontally toward the battery swapping position. Step S50: Based on the fully charged battery box moving horizontally to the battery swapping position, control the battery box to rise so that the fully charged battery box is at the same height as the battery swapping position of the vehicle. Step S60: Based on the fact that the fully charged battery box and the charging position of the vehicle are at the same height, the fully charged battery box is loaded onto the charging position of the vehicle, and the vehicle is switched to charging state. Step S20 includes: Step S21: Based on the battery swapping location switching from waiting state to vehicle arrival state, obtain the loading status of the charging station in the upper position of the first area; the loading status includes fully loaded and empty. Step S22: Based on the fact that the number of unloaded charging stations in the upper position of the first area is greater than 0, the battery box on the vehicle at the battery swapping position is removed and loaded onto the unloaded charging station, and the vehicle is switched to the unloaded state. Vehicle battery swapping methods also include: Step S70: Based on the vehicle being in a charging state or the battery swapping location switching from an approaching state to a waiting state, obtain the loading status of the charging station in the first area. Step S80: Based on the fact that all the charging docks in the first area are fully loaded, the battery box with the lowest state of charge in the first area is moved to the unloaded charging dock on the upper layer of the second area. Step S90: Based on the fact that the number of unloaded charging docks in the first area is greater than 0 and the battery swapping position is in a waiting state, adjust the unloaded charging docks in the first area to be located in the upper layer of the first area.

2. A vehicle battery swapping method according to claim 1, characterized in that, Step S30 includes: Step S31: Based on the vehicle being in a de-energized state, obtain the state of charge of all battery packs in the first region. Step S32: Based on the fact that the number of fully charged battery boxes in the first area is greater than 0, grab the fully charged battery box and load it onto the charging position on the vehicle, and switch the vehicle to charging state. Step S33: Based on the fact that the number of fully charged battery boxes in the first region is 0, obtain the state of charge of the battery boxes in the lower layer of the second region.

3. A vehicle battery swapping method according to claim 1, characterized in that, Step S80 includes: Step S81: Based on the fact that all charging docks in the first area are in a fully loaded state, obtain the state of charge of the battery box in the first area and the location of the unloaded charging dock in the second area. Step S82: Based on the fact that the unloaded charging dock in the second region is located on the upper layer, the battery box with the lowest state of charge in the first region is adjusted to the unloaded charging dock on the upper layer of the second region.

4. A vehicle battery swapping method according to claim 3, characterized in that, Step S82 includes: Step S821: Based on the fact that the unloaded charging dock in the second area is located on the lower layer, adjust the position of the charging dock until the unloaded charging dock is located on the upper layer of the second area. Step S822: Based on the fact that the unloaded charging dock in the second region is located on the upper layer, the battery box with the lowest state of charge in the first region is adjusted to the unloaded charging dock on the upper layer of the second region.

5. A vehicle battery swapping method according to claim 1, characterized in that, Step S90 includes: Step S91: Based on the fact that the number of empty charging docks in the first area is greater than 0, obtain the location information of the empty charging docks in the first area. Step S92: Based on the fact that the unloaded charging station in the first area is located on the upper layer, the battery swapping station is controlled to be in standby mode; Step S93: Based on the fact that the unloaded charging dock in the first area is located on the lower layer and the battery swapping position is in a waiting state, the unloaded charging dock is moved to the upper layer of the first area.

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