A control method, device, equipment and medium for battery pack replacement

Abstract

The present invention discloses a control method, device, equipment and medium for battery pack replacement. The method comprises: when receiving a confirmation instruction that the target vehicle has reached a preset battery replacement position, sending an unlocking instruction to the battery pack mechanical locking device in the target vehicle; when the battery pack mechanical locking device is successfully unlocked and a start-up battery replacement instruction is received, sending a disconnection instruction to the BMS normal power contactor; when the BMS normal power contactor is disconnected, determining the connection between the battery pack in the target vehicle and the battery replacement connector according to the detected quick-change interlocking signal; when the connection is disconnected and reconnected, sending a locking instruction to the battery pack mechanical locking device and a closing instruction to the BMS normal power contactor in sequence to complete the battery pack replacement operation, solve the problem of long waiting time for the vehicle to be charged, improve the working efficiency of the mine car, and ensure smooth and safe completion of the battery replacement operation and the personal safety of the driver during the battery replacement process.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of vehicle technology, and in particular, to a control method, device, equipment and medium for battery pack replacement. Background Art

[0002] With the global energy shortage, environmental pollution is becoming more and more serious. Under the general trend of environmental protection and clean energy concepts, pure electric mining cars have become a new highlight in the development of engineering machinery due to their advantages of saving energy and reducing environmental pollution. Power is the core of pure electric mining cars. Compared with traditional oil trucks, more than 70% of domestic working conditions are mainly heavy-load climbing, which causes the power battery to consume power quickly and takes a long time to charge, reducing the service life of the power battery. At the same time, it also reduces the effective working time of pure electric mining cars, affecting the working efficiency and operational safety of mining cars. Summary of the invention

[0003] In view of this, the present invention provides a control method, device, equipment and medium for replacing a battery pack to solve the problem of long waiting time for vehicles to be charged and improve the working efficiency of mining vehicles.

[0004] In a first aspect, an embodiment of the present invention provides a method for controlling battery pack replacement, the method comprising:

[0005] Upon receiving a confirmation instruction that the target vehicle has reached a preset battery replacement position, sending an unlocking instruction to a battery pack mechanical locking device in the target vehicle;

[0006] When the battery pack mechanical locking device is successfully unlocked and a battery replacement start instruction is received, a disconnection instruction is sent to the battery management system BMS normal power contactor;

[0007] When the BMS normal power contactor is disconnected, determining the connection status between the battery pack in the target vehicle and the battery swap connector according to the detected quick-change interlock signal;

[0008] When the connection condition is disconnected and then reconnected, a locking command is sent to the battery pack mechanical locking device and a closing command is sent to the BMS normal power contactor in sequence to complete the battery pack replacement operation.

[0009] In a second aspect, an embodiment of the present invention further provides a control device for replacing a battery pack, the device comprising:

[0010] A first sending module, configured to send an unlocking instruction to a battery pack mechanical locking device in the target vehicle upon receiving a confirmation instruction that the target vehicle has reached a preset battery replacement position;

[0011] A second sending module is used to send a disconnection instruction to the BMS normal power contactor when the battery pack mechanical locking device is successfully unlocked and a start battery replacement instruction is received;

[0012] A determination module, used to determine the connection status between the battery pack and the battery replacement connector in the target vehicle according to the detected quick-change interlock signal when the BMS normal power contactor is disconnected;

[0013] The third sending module is used to send a locking instruction to the battery pack mechanical locking device and a closing instruction to the BMS normal power contactor in sequence when the connection condition is disconnected and reconnected, so as to complete the battery pack replacement operation.

[0014] In a third aspect, an embodiment of the present invention further provides a control device for replacing a battery pack, the device comprising: a memory, and one or more processors;

[0015] A memory for storing one or more programs;

[0016] When the one or more programs are executed by the one or more processors, the one or more processors implement the control method for battery pack replacement as described in any of the above embodiments.

[0017] In a fourth aspect, a computer-readable storage medium stores a computer program, which, when executed by a processor, implements the control method for battery pack replacement as described in any of the above embodiments.

[0018] In an embodiment of the present invention, upon receiving a confirmation instruction that the target vehicle has reached a preset battery replacement position, an unlocking instruction is sent to a mechanical locking device of a battery pack in a target vehicle; when the mechanical locking device of the battery pack is successfully unlocked and a battery replacement start instruction is received, a disconnection instruction is sent to a normal power contactor of a battery management system (BMS); when the BMS normal power contactor is disconnected, the connection status between the battery pack in the target vehicle and the battery replacement connector is determined based on a detected quick-change interlocking signal; when the connection status is disconnected and reconnected, a locking instruction is sequentially sent to the mechanical locking device of the battery pack and a closing instruction is sent to the BMS normal power contactor to complete the battery pack replacement operation. The embodiment of the present invention determines the connection status of the battery pack and the battery replacement connector in the target vehicle according to the detected quick-change interlock signal when the BMS normal power contactor is disconnected; when the connection status is disconnected and then reconnected, a locking command is sent to the battery pack mechanical locking device and a closing command is sent to the BMS normal power contactor in sequence to complete the battery pack replacement operation, thereby solving the problem of long waiting time for vehicles to be charged, improving the working efficiency of mining cars, extending the service life of power batteries, and at the same time ensuring smooth and safe completion of battery replacement operations and the personal safety of drivers during the battery replacement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a flow chart of a control method for battery pack replacement provided by an embodiment of the present invention;

[0020] Figure 2 is a flow chart of another battery pack replacement control method provided by an embodiment of the present invention;

[0021] Figure 3 is a flow chart of another method for controlling battery pack replacement provided by an embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of charging a target vehicle battery pack provided by an embodiment of the present invention;

[0023] Figure 5 is a structural block diagram of a control device for battery pack replacement provided by an embodiment of the present invention;

[0024] Figure 6 It is a schematic diagram of the hardware structure of a battery pack replacement control device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0026] It should be mentioned before discussing exemplary embodiments in more detail that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow charts describe various operations (or steps) as sequential processes, many operations therein can be implemented in parallel, concurrently or simultaneously. In addition, the order of various operations can be rearranged. The process can be terminated when its operation is completed, but can also have additional steps not included in the accompanying drawings. The process can correspond to methods, functions, procedures, subroutines, subprograms, etc. In addition, the embodiments in the present invention and the features in the embodiments can be combined with each other without conflict.

[0027] The term “including” and its variations used in the present invention are open inclusions, that is, “including but not limited to.” The term “based on” means “based at least in part on.” The term “one embodiment” means “at least one embodiment.”

[0028] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] In one embodiment, Figure 1 This is a flow chart of a control method for battery pack replacement provided by an embodiment of the present invention. This embodiment is applicable to the case where the battery pack of a mining vehicle is replaced. This embodiment can be executed by a control device for battery pack replacement. The control device for battery pack replacement can be a computer. Figure 1 As shown, this embodiment may include the following steps:

[0030] S110. Upon receiving a confirmation instruction that the target vehicle has reached a preset battery replacement position, an unlocking instruction is sent to a battery pack mechanical locking device in the target vehicle.

[0031] The target vehicle can be understood as the vehicle whose battery pack is to be replaced. The battery pack mechanical locking device can be understood as a fixing device of the battery system, which is located inside the target vehicle. When receiving a confirmation instruction that the target vehicle has reached the preset battery replacement position, the battery pack mechanical locking device can receive a corresponding unlocking instruction to unlock. The preset battery replacement position can be understood as a pre-set relevant position of the target vehicle's battery pack for replacement.

[0032] In this embodiment, an infrared sensor can be used to detect whether the target vehicle has reached the preset battery replacement position. Upon receiving a confirmation instruction that the target vehicle has reached the preset battery replacement position, a corresponding unlocking instruction is sent to the battery pack mechanical locking device in the target vehicle to successfully unlock the battery pack mechanical locking device in the target vehicle.

[0033] Specifically, the vehicle enters the battery swap channel, presses the flip switch in the cab, and flips the protective plate on the cargo box to a fixed position first. Then the battery swap station confirms that the target vehicle has reached the battery swap position, and the T-BOX forwards the command message of the battery swap station to the vehicle control unit (VCU) and the battery management system (BMS). The VCU receives the command message forwarded by the T-BOX to detect that the target vehicle has reached the battery swap position. At the same time, the BMS determines whether the battery swap button is pressed and whether the confirmation of the vehicle reaching the battery swap position is received from the battery swap station. If so, the BMS sends the relevant message to the VCU confirming that the vehicle has reached the battery swap position. Among them, the T-BOX can be understood as an intelligent vehicle-mounted terminal in the Internet of Vehicles system, which can be used to communicate with the background server of the battery swap station. Among them, the battery management system can be used to monitor the status of the battery.

[0034] In one embodiment, a visual camera is used to detect whether the target vehicle has reached a preset battery replacement position.

[0035] In this embodiment, a visual camera can be used to detect whether the target vehicle has reached the preset battery replacement position, so that when the target vehicle is detected to have reached the preset battery replacement position, the battery pack mechanical locking device in the target vehicle can be unlocked. The visual camera can transmit the image projected onto the sensor through the lens to a machine device that can store, analyze and / or display it.

[0036] S120. When the mechanical locking device of the battery pack is successfully unlocked and a command to start battery replacement is received, a disconnect command is sent to the normal power contactor of the battery management system BMS.

[0037] Among them, the start-up power swap command can be understood as the start-up power swap command sent by the power swap station. The normal power contactor can be understood as a switch. During the power swap process, there is high voltage and low voltage. The high voltage can be used to provide power for the target vehicle, and the low voltage can be used for related data communication. When the BMS normal power contactor is disconnected, there is no low voltage, and there is no corresponding data communication.

[0038] In this embodiment, when the mechanical locking device of the battery pack is successfully unlocked, the VCU can send a battery swap readiness instruction to the battery swap station. When the battery swap station receives that the target vehicle is ready, it will feedback the corresponding battery swap start instruction of the target vehicle. After the target vehicle receives the battery swap start instruction sent by the battery swap station, it sends a disconnection instruction to the BMS normal power contactor, and the VCU can control the BMS normal power contactor to disconnect. Among them, the VCU can be understood as the core of the entire control system in the target vehicle.

[0039] S130. When the BMS normal power contactor is disconnected, determine the connection status between the battery pack and the battery replacement connector in the target vehicle based on the detected quick-change interlock signal.

[0040] The quick-change interlock signal can be understood as a signal related to whether the battery pack in the target vehicle has been installed. The quick-change interlock signal can be used to determine the connection between the battery pack in the target vehicle and the battery swap connector. The battery swap connector can be understood as a high- and low-voltage related connection plug-in.

[0041] In this embodiment, when the BMS normal power contactor is disconnected, the quick-change interlock signal of the target vehicle can be continuously detected through the induction resistor to determine the connection status between the battery pack and the battery swap connector in the target vehicle based on the detected quick-change interlock signal. It should be noted that since the connection status between the battery pack and the battery swap connector in the target vehicle can be determined by the quick-change interlock signal of the target vehicle, when the quick-change interlock signal of the target vehicle is not detected, the battery pack in the target vehicle and the battery swap connector are in a disconnected state; when the quick-change interlock signal of the target vehicle is detected, the battery pack in the target vehicle and the battery swap connector are in an established connection state.

[0042] S140. When the connection is disconnected and then reconnected, a locking command is sent to the battery pack mechanical locking device and a closing command is sent to the BMS normal power contactor in sequence to complete the battery pack replacement operation.

[0043] The locking instruction can be understood as a locking instruction sent to the battery pack mechanical locking device, which can be used to control the battery pack mechanical locking device to lock. The closing instruction can be understood as a closing instruction sent to the BMS normal power contactor, which can be used to control the BMS normal power contactor to close.

[0044] It should be noted that the VCU is powered by batteries with relevant voltage values ​​to ensure that the VCU is in a low-voltage state during the battery pack replacement process.

[0045] In this embodiment, when the battery pack in the target vehicle is disconnected and then reconnected to the battery pack replacement connector, a locking command is first sent to the battery pack mechanical locking device to control the battery pack mechanical locking device to lock. Then, after confirming that the battery pack mechanical locking device is successfully locked, a closing command is sent to the BMS normal power contactor to control the BMS normal power contactor to be in a closed state. When the BMS normal power contactor is in a closed state, the BMS low-voltage communication will be energized to implement relevant battery pack replacement operations.

[0046] In one embodiment, a battery with a preset voltage value is configured to supply power to the vehicle controller VCU to ensure that the VCU is in a low-voltage state during the battery pack replacement process.

[0047] The battery with a preset voltage value can be understood as a battery with a preset voltage value. It should be noted that the battery with a preset voltage value needs to be a low voltage value. For example, the preset voltage value of the configured battery can be 24V.

[0048] In this embodiment, the VCU needs to be in a low-voltage state during the battery pack replacement process. The VCU can be powered by batteries with pre-set relevant voltage values. The VCU controls the BMS normal power relay to close. After the BMS normal power relay is closed, the target vehicle can be powered and related communications can be carried out normally, thus completing the battery replacement operation.

[0049] In an embodiment of the present invention, upon receiving a confirmation instruction that the target vehicle has reached a preset battery replacement position, an unlocking instruction is sent to a mechanical locking device of a battery pack in a target vehicle; when the mechanical locking device of the battery pack is successfully unlocked and a battery replacement start instruction is received, a disconnection instruction is sent to a normal power contactor of a battery management system (BMS); when the BMS normal power contactor is disconnected, the connection status between the battery pack in the target vehicle and the battery replacement connector is determined based on a detected quick-change interlocking signal; when the connection status is disconnected and reconnected, a locking instruction is sequentially sent to the mechanical locking device of the battery pack and a closing instruction is sent to the BMS normal power contactor to complete the battery pack replacement operation. The embodiment of the present invention determines the connection status of the battery pack and the battery replacement connector in the target vehicle according to the detected quick-change interlock signal when the BMS normal power contactor is disconnected; when the connection status is disconnected and then reconnected, a locking command is sent to the battery pack mechanical locking device and a closing command is sent to the BMS normal power contactor in sequence to complete the battery pack replacement operation, thereby solving the problem of long waiting time for vehicles to be charged, improving the working efficiency of mining cars, extending the service life of power batteries, and at the same time ensuring smooth and safe completion of battery replacement operations and the personal safety of drivers during the battery replacement process.

[0050] In one embodiment, the control method for replacing a battery pack further includes:

[0051] When the battery pack mechanical locking device is successfully unlocked, a vehicle battery swap readiness instruction is sent to the backend server of the battery swap station associated with the target vehicle;

[0052] Receive the start battery swap instruction corresponding to the vehicle battery swap readiness instruction fed back by the battery swap station backend server.

[0053] The vehicle battery swap readiness instruction can be understood as the readiness instruction sent by the target vehicle to the associated battery swap station backend server when the battery pack mechanical locking device is successfully unlocked. The battery swap start instruction can be understood as the battery swap start instruction fed back to the target vehicle by the battery swap station backend server after receiving the vehicle battery swap readiness instruction.

[0054] In this embodiment, when the mechanical locking device of the battery pack is successfully unlocked, the target vehicle sends a vehicle battery swap readiness instruction to the associated battery swap station backend server. After the battery swap station backend server receives the vehicle battery swap readiness instruction, the battery swap station backend server feeds back the corresponding battery swap start instruction to the target vehicle.

[0055] In one embodiment, after the BMS normal power contactor is closed, the method further includes:

[0056] Send a battery pack replacement completion instruction to the BMS;

[0057] Receive the vehicle operating mode fed back by the BMS so that the target vehicle operates according to the vehicle operating mode.

[0058] The vehicle operating mode can be understood as the operating mode fed back by the BMS after the battery pack is replaced. For example, the vehicle operating mode can be that the target vehicle can move.

[0059] In this embodiment, after the BMS normal power contactor is closed, a battery pack replacement completion instruction can be sent to the BMS, indicating that the battery pack has been replaced, and then the BMS feeds back the relevant vehicle operating mode to operate according to the relevant vehicle operating mode of the target vehicle.

[0060] In one embodiment, Figure 2 It is a flow chart of another control method for battery pack replacement provided by an embodiment of the present invention. Based on the above embodiments, this embodiment further refines the method for determining the connection status between the battery pack and the battery replacement connector in the target vehicle according to the detected quick-change interlock signal, and sequentially sending a locking command to the battery pack mechanical locking device and a closing command to the BMS normal power contactor. It should be noted that the following steps S210 to S220 are the process of confirming the battery replacement position of the target vehicle and disassembling the battery pack, and the following steps S230 to S270 are the steps for installing the battery pack on the target vehicle. Figure 2 As shown, the control method for replacing the battery pack in this embodiment may specifically include the following steps:

[0061] S210: Upon receiving a confirmation instruction that the target vehicle has reached a preset battery replacement position, sending an unlocking instruction to a battery pack mechanical locking device in the target vehicle.

[0062] S220. When the mechanical locking device of the battery pack is successfully unlocked and a command to start battery replacement is received, a disconnect command is sent to the normal power contactor of the battery management system BMS.

[0063] S230: When the BMS normal power contactor is disconnected, the quick-change interlock signal of the target vehicle is continuously detected through the induction resistor.

[0064] In this embodiment, when the BMS normal power contactor is disconnected, the quick-change interlock signal of the target vehicle can be continuously detected through the inductive resistor, so as to judge whether the battery pack and the battery replacement connector in the target vehicle are in a disconnected state or a connected state according to the quick-change interlock signal of the target vehicle. Among them, the inductive resistor can be used to continuously detect the quick-change interlock signal of the target vehicle.

[0065] S240: When the BMS normal power contactor is disconnected and the quick-change interlock signal is not detected, the battery pack in the target vehicle is disconnected from the battery replacement connector.

[0066] In this embodiment, the quick-change interlock signal of the target vehicle can be continuously detected through an inductive resistor. If the BMS normal power contactor is disconnected and the quick-change interlock signal is not detected, the battery pack and the battery replacement connector in the target vehicle are disconnected.

[0067] S250: When the BMS normal power contactor is disconnected and the quick-change interlock signal is detected, a connection is established between the battery pack in the target vehicle and the battery swap connector.

[0068] In this embodiment, the quick-change interlock signal of the target vehicle can be continuously detected through the induction resistor. If the BMS normal power contactor is disconnected at this time and the quick-change interlock signal is detected, the battery pack in the target vehicle and the battery replacement connector are in a connection establishment state.

[0069] S260: When the connection is disconnected and then reconnected, a locking command is sent to the mechanical locking device of the battery pack.

[0070] In this embodiment, when the connection between the battery pack in the target vehicle and the battery exchange connector is disconnected and then reconnected, a locking command is sent to the battery pack mechanical locking device to control the battery pack mechanical locking device to lock.

[0071] S270. When the connection is disconnected and reconnected and the battery pack mechanical locking device is successfully locked, a closing command is sent to the BMS normal power contactor to control the BMS normal power contactor to close, so as to complete the battery pack replacement operation.

[0072] In this embodiment, when the connection between the battery pack in the target vehicle and the battery replacement connector is disconnected and reconnected, and the battery pack mechanical locking device is successfully locked, a closing command is sent to the BMS normal power contactor to control the closing of the BMS normal power contactor to complete the battery pack replacement operation.

[0073] In this embodiment, when the battery replacement position of the target vehicle is confirmed and the battery pack is removed through steps S210 to S220, and the battery pack is installed on the target vehicle through steps S230 to S270, related operations of the target battery pack installation performed by the battery swap station may also be included. It should be noted that the target battery pack installation performed by the battery swap station is similar to the battery pack installation performed by the target vehicle. After the battery pack is placed in the corresponding position of the target vehicle, the BMS is awakened. This requires judging whether the BMS has received a battery swap station mode message. If the battery swap station mode message is received, the battery swap station control mode is entered, and charging and discharging are performed according to the battery swap station instructions. If the battery swap station mode message is not received, it is necessary to judge whether there is a wake-up source. If so, the working mode is selected according to the wake-up source. If not, it is necessary to re-judge whether the BMS has received the battery swap station mode message, and then restart the cycle.

[0074] In the embodiment of the present invention, when the BMS normal power contactor is disconnected, the quick-change interlock signal of the target vehicle is continuously detected through the induction resistor, and then when the BMS normal power contactor is disconnected and the quick-change interlock signal is not detected, the battery pack in the target vehicle is disconnected from the battery replacement connector; when the BMS normal power contactor is disconnected and the quick-change interlock signal is detected, a connection is established between the battery pack in the target vehicle and the battery replacement connector; when the connection is disconnected and reconnected, a locking command is sent to the battery pack mechanical locking device; when the connection is disconnected and reconnected and the battery pack mechanical locking device is successfully locked, a closing command is sent to the BMS normal power contactor to control the BMS normal power contactor to close, so as to complete the battery pack replacement operation, further improving the working efficiency of the mine car, shortening the vehicle waiting time for charging, and ensuring that the electric mine car, power battery and battery replacement station can complete the battery replacement operation smoothly and safely during the battery replacement process.

[0075] In one embodiment, Figure 3 This is a flow chart of another method for controlling battery pack replacement provided by an embodiment of the present invention. This embodiment is based on the above embodiment and can be used as a preferred embodiment to illustrate the process of the method for controlling battery pack replacement. Figure 3 As shown, the main steps of the control method for battery pack replacement are:

[0076] S301. Wake up the VCU.

[0077] S302: The vehicle enters the passage of the battery swap station.

[0078] S303. Press the cab flip switch to flip the protective plate on the cargo box to a fixed position first.

[0079] S304: Receive the message forwarded by T-BOX indicating that the battery swap station has detected that the vehicle has arrived at the battery swap station.

[0080] S305: Whether the battery swap button is pressed and the battery swap station confirms that the vehicle has reached the battery swap location. If so, execute S306; if not, continue to execute S305.

[0081] It should be noted that after the vehicle reaches the battery replacement position, the battery replacement button is pressed and the BMS makes relevant judgments.

[0082] S306. Send a message to the BMS to confirm that the vehicle has arrived at the battery swap station.

[0083] S307: Whether the unknown instruction message of the BMS confirming the arrival of the vehicle at the battery swap station is received, if so, execute S308; if not, execute S304.

[0084] S308. The battery pack is mechanically unlocked.

[0085] S309: Is the mechanical unlocking completed? If so, execute S310; if not, execute S308.

[0086] S310, sending a vehicle battery swap station readiness instruction.

[0087] S311: Whether the battery swap start instruction sent by the battery swap station is received, if so, execute S312; if not, execute S310.

[0088] S312, VCU controls the BMS normal power contactor to disconnect.

[0089] S313, BMS controls the disconnection of the normal power contactor.

[0090] S314: The quick-change interlock signal is detected.

[0091] S315: Whether the quick-change interlock signal is detected, if so, execute S314; if not, execute S316.

[0092] S316, quick-change interlock detection.

[0093] S317: Whether the quick-change interlock signal is detected, if so, execute S318; if not, execute S316.

[0094] S318, the battery pack is mechanically locked.

[0095] S319, close the BMS normal power contactor.

[0096] S320. VCU sends a battery pack replacement completion instruction.

[0097] S321, BMS sends the working mode that the vehicle can move.

[0098] It should be noted that the above steps S301 to S307 are specific processes for confirming the battery replacement position of the target vehicle executed by the target vehicle; the above steps S308 to S316 are specific processes for disassembling the battery pack executed by the target vehicle; and the above steps S317 to S322 are specific processes for installing the battery pack executed by the target vehicle.

[0099] In one embodiment, Figure 4 FIG. 1 is a schematic diagram of charging a target vehicle battery pack provided by an embodiment of the present invention. Figure 4 As shown, steps S401 to S405 can be understood as the process of charging the target vehicle battery pack, which can be understood as the process of loading the target vehicle battery pack executed by the battery swap station, and its main steps are:

[0100] S401, BMS is awakened.

[0101] S402: Whether the BMS receives the battery swap station mode message, if so, execute S326; if not, execute S325.

[0102] S403: Is there a wake-up source? If yes, execute S405; if no, execute S401.

[0103] S404, entering the battery swap station mode.

[0104] S405: Select a working mode according to the wake-up source.

[0105] In one embodiment, Figure 5 : is a structural block diagram of a control device for replacing a battery pack provided by an embodiment of the present invention. The device is suitable for replacing a battery pack of a mining vehicle. The device can be implemented by hardware / software. Figure 5 As shown, the device includes: a first sending module 510, a second sending module 520, a determination module 530 and a third sending module 540.

[0106] The first sending module 510 is used to send an unlocking instruction to the battery pack mechanical locking device in the target vehicle when receiving a confirmation instruction that the target vehicle has reached the preset battery replacement position;

[0107] The second sending module 520 is used to send a disconnection instruction to the BMS normal power contactor when the battery pack mechanical locking device is successfully unlocked and a start battery replacement instruction is received;

[0108] A determination module 530 is used to determine the connection status between the battery pack in the target vehicle and the battery replacement connector according to the detected quick-change interlock signal when the BMS normal power contactor is disconnected;

[0109] The third sending module 540 is used to send a locking instruction to the battery pack mechanical locking device and a closing instruction to the BMS normal power contactor in sequence when the connection condition is disconnected and reconnected, so as to complete the battery pack replacement operation.

[0110] In the embodiment of the present invention, through the determination module 530, when the BMS normal power contactor is disconnected, the connection status of the battery pack and the battery replacement connector in the target vehicle is determined according to the detected quick-change interlock signal; the third sending module 540, when the connection status is disconnected and reconnected, sequentially sends a locking command to the battery pack mechanical locking device and a closing command to the BMS normal power contactor to complete the battery pack replacement operation, which solves the problem of long waiting time for vehicles to charge, improves the working efficiency of mining cars, and extends the service life of power batteries. At the same time, it ensures the smooth and safe completion of the battery replacement operation and the personal safety of the driver during the battery replacement process.

[0111] In one embodiment, a visual camera is used to detect whether the target vehicle has reached a preset battery replacement position.

[0112] In one embodiment, a battery with a preset voltage value is configured to supply power to the vehicle controller VCU to ensure that the VCU is in a low-voltage state during battery pack replacement.

[0113] In one embodiment, the control device for replacing the battery pack further includes:

[0114] The battery replacement instruction preparation module is used to send a vehicle battery replacement preparation instruction to the backend server of the battery replacement station associated with the target vehicle when the battery pack mechanical locking device is successfully unlocked.

[0115] The battery swap instruction start module is used to receive the battery swap start instruction corresponding to the vehicle battery swap readiness instruction fed back by the backend server of the battery swap station.

[0116] In one embodiment, the determination module 530 includes:

[0117] A signal detection unit, used for continuously detecting a quick-change interlock signal of the target vehicle through an inductive resistor;

[0118] A connection and disconnection unit, used to disconnect the battery pack in the target vehicle from the battery replacement connector when the quick-change interlock signal is not detected;

[0119] A connection establishing unit is used to establish a connection between the battery pack in the target vehicle and the battery replacement connector when the quick-change interlock signal is detected.

[0120] In one embodiment, the third sending module 540 includes:

[0121] A locking instruction sending unit, used to send a locking instruction to the battery pack mechanical locking device;

[0122] The contactor closing unit is used to send a closing instruction to the BMS normal power contactor to control the closing of the BMS normal power contactor when the battery pack mechanical locking device is successfully locked.

[0123] In one embodiment, the control device for replacing the battery pack further includes:

[0124] An instruction sending module, used for sending a battery pack replacement completion instruction to the BMS after the BMS normal power contactor is closed;

[0125] The vehicle operation module is used to receive the vehicle operation mode fed back by the BMS so that the target vehicle operates according to the vehicle operation mode.

[0126] The above-mentioned control device for battery pack replacement can execute the control method for battery pack replacement provided by any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the control method for battery pack replacement.

[0127] In one embodiment, Figure 6 1 is a schematic diagram of the hardware structure of a battery pack replacement control device provided in an embodiment of the present invention. The device in the embodiment of the present invention is described by taking a computer as an example. Figure 6 As shown, the battery pack replacement control device provided in the embodiment of the present invention includes: a processor 610, a memory 620, an input device 630 and an output device 640. The processor 610 in the battery pack replacement control device can be one or more, Figure 6 Taking a processor 610 as an example, the processor 610, the memory 620, the input device 630 and the output device 640 in the battery pack replacement control device can be connected via a bus or other means. Figure 6 The example of connecting through bus is taken in the following.

[0128] The memory 620 in the battery pack replacement control device is a computer-readable storage medium that can be used to store one or more programs, which can be software programs, computer executable programs, and modules, such as program instructions / modules corresponding to the embodiments of the present invention or the provided battery pack replacement control method (for example, Figure 5 The modules in the control device for battery pack replacement shown include: a first sending module 510, a second sending module 520, a determination module 530 and a third sending module 540). The processor 610 executes various functional applications and data processing of the cloud server by running the software programs, instructions and modules stored in the memory 620, that is, the control method for battery pack replacement in the above method embodiment is implemented.

[0129] The memory 620 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the device, etc. In addition, the memory 620 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 620 may further include a memory remotely arranged relative to the processor 610, and these remote memories may be connected to the device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0130] The input device 630 may be used to receive digital or character information input by a user to generate key signal input related to user settings and function control of the terminal device. The output device 640 may include a display device such as a display screen.

[0131] Furthermore, when one or more programs included in the above-mentioned battery pack replacement control device are executed by one or more processors 610, the program performs the following operations: when receiving a confirmation instruction that the target vehicle has reached a preset battery replacement position, sending an unlocking instruction to the battery pack mechanical locking device in the target vehicle; when the battery pack mechanical locking device is successfully unlocked and receives a start battery replacement instruction, sending a disconnection instruction to the battery management system BMS normal power contactor; when the BMS normal power contactor is disconnected, determining the connection status between the battery pack in the target vehicle and the battery replacement connector based on the detected quick-change interlocking signal; when the connection status is disconnected and reconnected, sending a locking instruction to the battery pack mechanical locking device and a closing instruction to the BMS normal power contactor in sequence to complete the battery pack replacement operation.

[0132] An embodiment of the present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the control method for battery pack replacement provided by an embodiment of the present invention, the method comprising: upon receiving a confirmation instruction that a target vehicle has reached a preset battery replacement position, sending an unlocking instruction to a battery pack mechanical locking device in the target vehicle; upon successfully unlocking the battery pack mechanical locking device and receiving a start battery replacement instruction, sending a disconnecting instruction to a battery management system BMS normal power contactor; upon disconnecting the BMS normal power contactor, determining the connection status between the battery pack in the target vehicle and the battery replacement connector based on a detected quick-change interlocking signal; and upon disconnecting and reconnecting the connection status, sending a locking instruction to the battery pack mechanical locking device and a closing instruction to the BMS normal power contactor in sequence to complete the battery pack replacement operation.

[0133] The computer storage medium of the embodiment of the present invention can adopt any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium can be, for example, but not limited to, a system, device or device of electricity, magnetism, light, electromagnetic, infrared, or semiconductor, or any combination of the above. More specific examples (non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (Random Access Memory, RAM), a read-only memory (Read-Only Memory, ROM), an erasable programmable read-only memory (ErasableProgrammable ROM, EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (Compact Disc Read-Only Memory, CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this document, a computer-readable storage medium can be any tangible medium containing or storing a program, which can be used by an instruction execution system, device or device or used in combination with it.

[0134] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, which carry computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0135] The program code embodied on the computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0136] Computer program code for performing the operations of the present invention may be written in one or more programming languages ​​or combinations thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0137] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A control method for replacing a battery pack, characterized in that: include: Upon receiving a confirmation instruction that the target vehicle has reached a preset battery replacement position, sending an unlocking instruction to a battery pack mechanical locking device in the target vehicle; When the battery pack mechanical locking device is successfully unlocked and a battery replacement start instruction is received, a disconnection instruction is sent to the battery management system BMS normal power contactor; When the BMS normal power contactor is disconnected, determining the connection status between the battery pack in the target vehicle and the battery swap connector according to the detected quick-change interlock signal; When the connection condition is disconnected and then reconnected, a locking command is sequentially sent to the battery pack mechanical locking device and a closing command is sent to the BMS normal power contactor to complete the battery pack replacement operation; The method further includes: detecting, by a visual camera, whether the target vehicle has reached a preset battery replacement position; After the BMS normal power contactor is closed, a battery pack replacement completion instruction is sent to the BMS; Receiving the vehicle operating mode fed back by the BMS, so that the target vehicle operates according to the vehicle operating mode; The method further comprises: When the battery pack mechanical locking device is successfully unlocked, a vehicle battery swap readiness instruction is sent to a backend server of a battery swap station associated with the target vehicle; Receiving a battery swap start instruction corresponding to the vehicle battery swap readiness instruction fed back by the battery swap station backend server; Wherein, determining the connection status between the battery pack and the battery swap connector in the target vehicle according to the detected quick-change interlock signal includes: Continuously detecting a quick-change interlock signal of the target vehicle through an inductive resistor; When the quick-change interlock signal is not detected, the battery pack in the target vehicle is disconnected from the battery-changing connector; When the quick-change interlock signal is detected, a connection is established between the battery pack in the target vehicle and the battery replacement connector.

2. The method according to claim 1, characterized in that: The vehicle controller VCU is powered by a battery with a preset voltage value to ensure that the VCU is in a low-voltage state during the battery pack replacement process.

3. The method according to claim 1, characterized in that The sequentially sending a locking instruction to the battery pack mechanical locking device and a closing instruction to the BMS normal power contactor includes: Sending a locking instruction to the battery pack mechanical locking device; When the battery pack mechanical locking device is successfully locked, a closing instruction is sent to the BMS normal power contactor to control the BMS normal power contactor to close.

4. A control device for replacing a battery pack, characterized in that: include: A first sending module, configured to send an unlocking instruction to a battery pack mechanical locking device in the target vehicle upon receiving a confirmation instruction that the target vehicle has reached a preset battery replacement position; A second sending module is used to send a disconnection instruction to the BMS normal power contactor when the battery pack mechanical locking device is successfully unlocked and a start battery replacement instruction is received; A determination module, used to determine the connection status between the battery pack and the battery replacement connector in the target vehicle according to the detected quick-change interlock signal when the BMS normal power contactor is disconnected; A third sending module is used to send a locking instruction to the battery pack mechanical locking device and a closing instruction to the BMS normal power contactor in sequence when the connection condition is disconnected and reconnected, so as to complete the replacement operation of the battery pack; The control device for replacing the battery pack is also used for: Detecting whether the target vehicle has reached a preset battery replacement position by a visual camera; The control device for replacing the battery pack also includes: An instruction sending module, used for sending a battery pack replacement completion instruction to the BMS after the BMS normal power contactor is closed; A vehicle operation module, used for receiving the vehicle operation mode fed back by the BMS, so that the target vehicle operates according to the vehicle operation mode; The control device for replacing the battery pack also includes: A battery swap instruction preparation module, used to send a vehicle battery swap readiness instruction to a backend server of a battery swap station associated with the target vehicle when the battery pack mechanical locking device is successfully unlocked; A battery swap instruction start module, used to receive a battery swap start instruction corresponding to the vehicle battery swap readiness instruction fed back by the backend server of the battery swap station; The determining module comprises: A signal detection unit, used for continuously detecting a quick-change interlock signal of the target vehicle through an inductive resistor; A connection and disconnection unit, used to disconnect the battery pack in the target vehicle from the battery replacement connector when the quick-change interlock signal is not detected; A connection establishing unit is used to establish a connection between the battery pack in the target vehicle and the battery replacement connector when the quick-change interlock signal is detected.

5. A control device for replacing a battery pack, characterized in that: The device includes: a memory, and one or more processors; A memory for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the control method for battery pack replacement as described in any one of claims 1-3.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the control method for battery pack replacement as described in any one of claims 1 to 3 is implemented.

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