Power battery driving device charging method, device, system, equipment and medium

Abstract

The present invention discloses a method, apparatus, system, equipment and medium for charging a power battery-driven device. The method monitors the insertion signal of a charging gun of a charging pile inserted into the charging interface of a power battery-driven device. When the insertion signal is detected, the currently connected charging pile is used as the target charging pile, the insulation detection function of the power battery-driven device is turned off, and a start instruction for turning on the insulation detection function is sent to the target charging pile. The target charging pile responds to the start instruction and turns on the insulation detection function of the target charging pile. This avoids the situation where the insulation detection of the charging pile and the insulation detection of the power battery-driven device are in the turned-on state due to the previously connected charging pile being connected before the target charging pile, resulting in interference between the insulation detection of the charging pile and the insulation detection of the power battery-driven device. This enables multiple charging piles to charge the power battery-driven device simultaneously, thereby improving charging efficiency.

Description

Technical Field

[0001] The present invention relates to battery charging technology, and in particular to a method, device, system, equipment and medium for charging a power battery driven device. Background Art

[0002] Power battery-driven equipment refers to equipment that uses the electrical energy of a power battery as its power and is driven by an electric motor, such as electric vehicles and electric aircraft.

[0003] Long charging times are currently one of the factors hindering the widespread adoption of battery-powered devices. To shorten charging times, two solutions are currently available on the market: One solution involves equipping a single charging station with multiple charging guns, allowing multiple guns to simultaneously charge battery-powered devices; the other solution involves using multiple charging guns at multiple charging stations to simultaneously charge battery-powered devices.

[0004] For solutions where multiple charging guns on a single charging pile are used to charge a power battery-powered device simultaneously, the maximum charging power is limited by the charging power of a single charging pile. When the battery system requires high-power supercharging, existing solutions cannot meet the high-power charging requirements, resulting in low charging efficiency. For charging guns on multiple charging piles to charge a power battery-powered device simultaneously, multiple charging piles must be started simultaneously to charge the power battery-powered device. However, in actual charging, it is difficult for multiple charging piles to start at the same time. If there is a time difference between the startup of multiple charging piles, they will interfere with each other during the interaction phase between the multiple charging piles and the power battery-powered device, resulting in interaction failure and charging failure. Summary of the Invention

[0005] The present invention provides a method, device, system, equipment and medium for charging a power battery-driven device, which avoids mutual interference and charging failure caused by multiple charging piles charging the power battery-driven device, and enables multiple charging piles to charge the power battery-driven device at the same time, thereby improving charging efficiency.

[0006] In a first aspect, the present invention provides a method for charging a power battery-driven device, comprising:

[0007] Monitoring the insertion signal of the charging gun of the charging pile into the charging interface of the power battery driven device;

[0008] When the insertion signal is detected, the currently connected charging pile is used as the target charging pile;

[0009] The insulation detection function of the power battery driving device is turned off, and an opening instruction for opening the insulation detection function is sent to the target charging pile. The target charging pile responds to the opening instruction and opens the insulation detection function of the target charging pile.

[0010] Optionally, when the charging gun is inserted into the charging port of the power battery-driven device, it is connected to the insertion monitoring circuit of the power battery-driven device to generate a high-level signal or a low-level signal as an insertion signal.

[0011] Optionally, disabling the insulation detection function of the power battery drive device and simultaneously sending an instruction to enable the insulation detection function to the target charging pile includes:

[0012] When the insertion signal is detected, determining whether the power battery driven device has been connected to another charging pile;

[0013] If the power battery driven device is already connected to the other charging pile, determining whether a line on the power battery driven device side in a charging circuit between the other charging pile and the power battery driven device is connected when the insertion signal is detected;

[0014] If the line on the power battery driving device side in the charging circuit of the power battery driving device and the other charging pile are not connected, the insulation detection function of the power battery driving device is maintained in a closed state, and at the same time, an opening instruction for opening the insulation detection function is issued to the target charging pile, wherein the insulation detection function of the power battery driving device is closed when receiving the insertion signal of the other charging pile, and is maintained in a closed state before the line on the power battery driving device side in the charging circuit of the power battery driving device and the other charging pile is connected, and is opened when the line on the power battery driving device side in the charging circuit of the power battery driving device and the other charging pile is connected; the insulation detection function of the other charging pile is opened when receiving the insertion signal of the other charging pile, and is maintained in an open state before the line on the power battery driving device side in the charging circuit of the power battery driving device and the other charging pile is connected, and is closed when the line on the power battery driving device side in the charging circuit of the power battery driving device and the other charging pile is connected;

[0015] If the other charging pile is connected to the line on the power battery driving device side in the charging circuit of the power battery driving device, the insulation detection function of the power battery driving device is turned off, and an opening instruction for opening the insulation detection function is sent to the target charging pile.

[0016] Optionally, disabling the insulation detection function of the power battery drive device and simultaneously sending an instruction to enable the insulation detection function to the target charging pile further includes:

[0017] If the power battery driven device is not connected to other charging piles, the insulation detection function of the power battery driven device is turned off, and at the same time, an opening instruction for opening the insulation detection function is sent to the target charging pile.

[0018] Optionally, determining whether a line on the power battery driven device side of the other charging pile and the charging circuit of the power battery driven device is connected when the insertion signal is detected includes:

[0019] Determining whether to send a battery management system readiness message to the other charging piles;

[0020] If so, determining that the other charging pile is connected to the line on the power battery driving device side in the charging circuit of the power battery driving device;

[0021] If not, it is determined that the other charging piles are not connected to the circuit on the power battery driven device side in the charging circuit of the power battery driven device.

[0022] Optionally, after turning off the insulation detection function of the power battery driving device and sending an instruction to turn on the insulation detection function to the target charging pile, the method further includes:

[0023] Determining whether the target charging pile is connected to a circuit on the power battery driving device side in a charging circuit of the power battery driving device;

[0024] When the target charging pile is connected to a line on the power battery driving device side in a charging circuit of the power battery driving device, an insulation detection function of the power battery driving device is turned on, and at the same time, a shutdown instruction for shutting down the insulation detection function is sent to the target charging pile, and the target charging pile responds to the shutdown instruction and shuts down the insulation detection function of the target charging pile;

[0025] Determining whether charging of the power battery-driven device is completed;

[0026] If charging is completed, the charging circuit between the target charging pile and the power battery driving device is disconnected, and the insulation detection function of the power battery driving device is turned off.

[0027] In a second aspect, the present invention further provides a charging device for a power battery driven device, comprising:

[0028] An insertion signal monitoring module is used to monitor the insertion signal of the charging gun of the charging pile inserted into the charging interface of the power battery drive device;

[0029] A target charging pile confirmation module is used to use the currently connected charging pile as the target charging pile when the insertion signal is detected;

[0030] The insulation detection shutdown module is used to shut down the insulation detection function of the power battery drive device and at the same time send an insulation detection function start instruction to the target charging pile. The target charging pile responds to the start instruction and turns on the insulation detection function of the target charging pile.

[0031] In a third aspect, the present invention further provides a power battery driven device charging system, comprising:

[0032] A power battery-driven device, comprising a power battery and a battery management system, wherein the power battery comprises a plurality of charging interfaces, wherein the charging interfaces comprise a first charging terminal, a first insertion monitoring terminal, and a first message exchange terminal, wherein the power battery is connected to the first charging terminal via a high-voltage wiring harness, the battery management system is connected to the first insertion monitoring terminal, and the battery management system is connected to the message exchange terminal, wherein the battery management system is configured to execute the power battery-driven device charging method provided in the first aspect of the present invention;

[0033] Multiple charging piles, each of which has at least one charging gun, and the charging gun includes a second charging terminal, a second insertion monitoring terminal and a second message exchange terminal. When the charging gun is inserted into the charging interface of the power battery drive device, the second charging terminal is connected to the first charging terminal, the second insertion monitoring terminal is connected to the first insertion monitoring terminal, and the second message exchange terminal is connected to the first message exchange terminal.

[0034] In a fourth aspect, the present invention further provides an electronic device, comprising:

[0035] one or more processors;

[0036] a storage device for storing one or more programs;

[0037] When the one or more programs are executed by the one or more processors, the one or more processors implement the power battery driven device charging method provided in the first aspect of the present invention.

[0038] In a fifth aspect, the present invention further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method for charging a power battery-driven device as provided in the first aspect of the present invention.

[0039] The power battery driven device charging method provided by the present invention monitors the insertion signal of the charging gun of the charging pile inserted into the charging interface of the power battery driven device. When the insertion signal is detected, the currently connected charging pile is used as the target charging pile, the insulation detection function of the power battery driven device is turned off, and at the same time, an opening instruction for turning on the insulation detection function is sent to the target charging pile. The target charging pile responds to the opening instruction and turns on the insulation detection function of the target charging pile, thereby avoiding the situation where the insulation detection of the charging pile and the insulation detection of the power battery driven device are in the turned-on state due to the previously connected charging pile being connected before the target charging pile, resulting in the insulation detection of the power battery driven device interfering with each other. This enables multiple charging piles to charge the power battery driven device at the same time, thereby improving the charging efficiency.

[0040] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0042] Figure 1 A flowchart of the message interaction between the battery management system of the power battery drive device and the charging pile;

[0043] Figure 2 This is a flow chart of a method for charging a power battery driven device provided by the present invention;

[0044] Figure 3 A flow chart of charging a power battery driven device using multiple charging piles provided by the present invention;

[0045] Figure 4 Another flow chart of multiple charging piles provided by the present invention for charging a power battery driven device;

[0046] Figure 5 This is a schematic structural diagram of a power battery driven device charging system provided by the present invention;

[0047] Figure 6 This is a schematic structural diagram of a charging device for a power battery driven device provided by the present invention;

[0048] Figure 7 This is a structural diagram of an electronic device provided by the present invention.

[0049] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0050] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0051] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0052] Figure 1 The message interaction flow chart of the battery management system of the power battery drive device and the charging pile is as follows: Figure 1 As shown, the message interaction between the Battery Management System (BMS) and the charging pile is divided into four stages, namely the handshake stage, the configuration stage, the charging stage and the end stage. It should be noted that the embodiment of the present invention takes an electric vehicle as an example of a power battery drive device, and exemplifies the message interaction process between the battery management system of the power battery drive device and the charging pile. In other embodiments of the present invention, the power battery drive device may also be other electric vehicles, electric aircraft or other devices that are powered by the electric energy of a power battery and driven by a motor. The embodiment of the present invention does not limit this. Other power battery drive devices and charging piles can also be operated according to Figure 1 The message interaction process shown in the figure is used for interaction, and the present invention will not be repeated here.

[0053] Handshake Phase: After the charging station's charging plug is plugged into the charging port of the power battery-driven device, the handshake phase begins. The charging station sends a Charger Handshake Message (CHM) to the Battery Management System (BMS), initiating a request to the BMS and informing it that charging is imminent. After receiving the CHM, the BMS sends a BMS Handshake Message (BHM) to the charging station in response to the CHM request, informing the charging station that charging can begin. After receiving the BHM, the charging station activates its insulation test function. Insulation testing uses specific methods to measure the insulation resistance between the device and the ground to determine whether there are safety hazards such as leakage, thereby ensuring electrical safety for users and the surrounding environment. After confirming that the insulation resistance is normal, the charging station sends a Charger Recognize Message (CRM) 0X00 to the BMS. This CRM 0X00 contains basic information about the charging station, such as the charging station number and location. After receiving the charging pile identification message CRM0X00, the battery management system sends a battery management system recognition message (BRM) to the charging pile. The battery management system recognition message BRM includes the unique identification code of the power battery drive device, voltage platform, battery capacity, hardware production information, and software development information. The charging pile identifies the information in the battery management system recognition message BRM. If the recognition is successful, it sets the recognition result to 0XAA (the initial value is 0X00) and sends the charging pile identification message CRM0XAA to the battery management system. At this point, the power battery drive device and the charging pile have successfully handshaked, and the handshake phase ends.

[0054] Configuration Phase: After the handshake phase between the charging pile and the power battery drive device completes (i.e., the battery management system receives the battery management system identification message CRM 0XAA), the configuration phase begins. During this phase, the battery management system sends the battery charging parameter message (BCP) to the charging pile. The BCP message includes information such as the maximum allowable charging voltage, maximum allowable total charging voltage, maximum allowable charging current, nominal total energy, maximum allowable temperature, SOC, and the current battery voltage of the power battery. After receiving the BCP message, the charging pile sends the Charger Time Synchronization (CTS) and Charger Maximum Limit (CML) messages to the battery management system. The CTS message contains the year / month / day / hour / minute / second information sent by the charging pile, which is used to determine the time when the current charging process occurred with the battery management system. The CML message includes the maximum and minimum charging voltages, and the maximum and minimum charging currents, among other information. After the charging pile and the battery management system confirm that the parameters contained in the above message are correct, the battery management system will send a battery management system charging readiness message (BRO (BMS Ready OK) 0X00) to the charging pile, close the relay switch on the power battery drive device side, and enable the insulation test function. At this point, the charging pile and the power battery drive device's charging circuit are connected on the power battery drive device side. After confirming that the relay switch on the power battery drive device is closed, the battery management system will send a battery management system charging readiness message (BRO 0XAA) to the charging pile. After receiving the battery management system charging readiness message (BRO 0XAA), the charging pile will send a charging pile output ready message (CRO (Charger Ready OK) 0X00) to the battery management system and control the charging pile's relay switch to close. After confirming that the relay switch on the charging pile side is closed, it will send a charging pile output ready message (CRO 0XAA) to the battery management system. At this point, the configuration phase ends, and the charging circuit between the charging pile and the power battery drive device is connected.

[0055] Charging Phase: After receiving CRO 0XAA, the BMS enters the charging phase. It sends a Battery Charge Lead (BCL) and a Battery Charge Status (BCS) message to the charging pile. The BCL message contains the battery's charging requirements (charging voltage, charging current, constant voltage or constant current charging, etc.), while the BCS message contains the battery's real-time charging status (voltage, current, SOC, etc.). This information is collected and calculated by the BMS's sensors. After receiving the BCL and BCS messages, the charging pile sends a Charger Charge Status (CCS) message to report its current real-time output status (voltage, current, accumulated time, etc.). This information is collected and calculated by the charging pile's sensors. While sending the CCS message, the charging pile adjusts its output voltage and current based on the requirements in the BCL message. In constant voltage charging mode, the output voltage of the charging pile must meet the voltage requirement, and the output current must not exceed the current requirement. In constant current charging mode, the output current of the charging pile must meet the current requirement, and the output voltage must not exceed the voltage requirement. After receiving the charging pile's charging status message (CCS), the battery management system sends a Battery Status Message (BSM) to the charging pile at predetermined intervals. This message reports battery status information (such as the bit number of the maximum cell voltage, the maximum and minimum cell temperatures and bit numbers, overvoltage, over-SOC, overcurrent, overtemperature, insulation status, and connector status) to the charging pile, ensuring that charging can be stopped promptly if a battery pack anomaly occurs. When the battery is fully charged, the battery management system sends a BMS Stop (BST) message to the charger to notify the charging pile that it is about to stop charging and the reason for the stop. After receiving the BMS Stop (BST) message, the charging pile sends a Charger Stop (CST) message to the battery management system to notify the battery management system that it is about to stop charging and the reason for the stop. Alternatively, the charging pile may proactively stop charging and send a CST message to the battery management system. After receiving the CST message, the battery management system sends a BST message to the charging pile. At this point, charging is complete and the charging phase ends.

[0056] Ending Phase: After the charging pile sends the CST and BMS BST messages to each other during the charging phase, the battery management system enters the ending phase. The battery management system sends the BMS Statistics Data (BSD) message to the charging pile to report the statistical results of the current charging process (SOC, maximum and minimum cell voltages, maximum and minimum cell temperatures). After receiving the BMS Statistics Data message BSD, the charging pile stops outputting current and sends the Charger Statistics Data (CSD) message to the battery management system to report the statistical results of the current charging process (accumulated charging time, charging degree, etc.). After sending the CSD message, the charging pile disconnects the relay switch on the charging pile side. After receiving the CSD message, the battery management system disconnects the relay switch on the battery management system side, and the charging process is now complete.

[0057] In the prior art, when multiple charging piles are simultaneously charging a power battery-driven device, if there is a time difference between the startup of the multiple charging piles, if the charging pile connected first and the battery management system are already in the charging phase of interaction, the battery management system has already activated the insulation detection function. When the charging pile connected later enters the handshake phase of interaction with the battery management system, the charging pile needs to activate the insulation detection function. At this time, the insulation detection functions of the charging pile and the battery management system interfere with each other, and the collected insulation resistance value is incorrect, resulting in both the charging pile connected earlier and the charging pile connected later being unable to charge the power battery-driven device.

[0058] In view of the above problems, an embodiment of the present invention provides a method for charging a power battery driven device. Figure 2 This is a flow chart of a method for charging a power battery-driven device provided by the present invention. This embodiment is applicable to the case where two or more charging piles charge the power battery-driven device at the same time. The method can be executed by a power battery-driven device charging device provided by an embodiment of the present invention. The device can be implemented by software and / or hardware and is usually configured in an electronic device. For example, in an embodiment of the present invention, the electronic device can be a battery management system of the power battery-driven device, such as Figure 2 As shown, the method for charging a power battery driven device specifically includes the following steps:

[0059] S101 , monitoring an insertion signal of a charging gun of a charging pile inserted into a charging interface of a power battery driving device.

[0060] In an embodiment of the present invention, the power battery driven device may be an electric car, an electric aircraft or other device that is powered by the electric energy of a power battery and driven by a motor, and the embodiment of the present invention does not limit this. The power battery driven device has a built-in power battery and a battery management system, the power battery is used to provide driving power for the power battery driven device, and the battery management system is used to monitor the charge and discharge status of the power battery. The embodiment of the present invention uses an electric car as an example of a power battery driven device to exemplify the scheme of the present invention. In other embodiments of the present invention, the power battery driven device may also be other electric cars, electric aircraft or other device that is powered by the electric energy of a power battery and driven by a motor, and the embodiment of the present invention does not limit this. Other power battery driven devices and charging piles or charging equipment can also be charged according to the charging method provided by the present invention, and the present invention will not go into details here.

[0061] A charging pile is a device that provides charging power to a power battery-driven device, so that the power battery-driven device can store enough power to support its operation. The charging pile has at least one charging gun, which is used to dock with the charging interface of the power battery-driven device and transmit power from the charging pile to the power battery of the power battery-driven device. Exemplarily, when the charging gun is inserted into the charging interface of the power battery-driven device, an insertion signal is generated. The battery management system monitors the insertion signal of the charging gun of the charging pile inserted into the charging interface of the power battery-driven device. Exemplarily, in some embodiments of the present invention, the battery management system continuously monitors the insertion signal. In other embodiments of the present invention, when the user opens the protective cover of the charging interface of the power battery-driven device, a start monitoring instruction is generated. The battery management system responds to the start monitoring instruction and starts monitoring the insertion signal. The embodiments of the present invention are not limited here.

[0062] In some embodiments of the present invention, an insertion monitoring circuit is provided inside the power battery-driven device. When the charging gun is inserted into the charging port of the power battery-driven device, the insertion monitoring circuit of the power battery-driven device is connected to generate a high-level signal or a low-level signal as an insertion signal.

[0063] S102: When an insertion signal is detected, the currently connected charging pile is used as a target charging pile.

[0064] In an embodiment of the present invention, when the battery management system detects an insertion signal, the charging pile corresponding to the currently inserted charging gun is used as the target charging pile, and the handshake phase of interaction between the target charging pile and the battery management system is entered.

[0065] S103: Turn off the insulation detection function of the power battery drive device, and at the same time send an instruction to turn on the insulation detection function to the target charging pile.

[0066] In an embodiment of the present invention, upon detecting that the charging gun of a target charging pile is plugged into the charging port of a power battery-driven device, the target charging pile and the power battery-driven device enter a handshake phase, exchanging data through message interaction. To avoid the possibility that the insulation detection function of the power battery-driven device is enabled due to prior access to the charging pile, which could cause interference between the insulation detection of the charging pile and the insulation detection of the power battery-driven device, upon detecting that the charging gun of the target charging pile is plugged into the charging port of the power battery-driven device, the insulation detection function of the power battery-driven device is disabled, and a command to enable the insulation detection function is simultaneously issued to the target charging pile. The target charging pile responds to the command and enables the insulation detection function of the target charging pile.

[0067] In an embodiment of the present invention, there may be two situations for the target charging pile. The first situation is: the target charging pile is the first charging pile connected to the power battery-driven device; the second situation is: the target charging pile is the second or subsequent charging pile connected to the power battery-driven device. Based on this, the present invention first determines whether the target charging pile is the first charging pile connected or the first or subsequent charging pile connected, and describes the specific process of step S103 for the two situations respectively. Exemplarily, in some embodiments of the present invention, the above step S103 includes the following sub-steps:

[0068] S1031. When an insertion signal is detected, determine whether the power battery-driven device is connected to another charging pile.

[0069] In an embodiment of the present invention, when the battery management system detects the insertion signal, it determines whether the power battery driving device has been connected to another charging pile. Figure 1 During the handshake phase between the charging pile and the power battery-powered device, the charging pile sends a charging pile identification message (CRM) to the power battery-powered device. The battery management system records this CRM message each time the charging pile is connected. Based on this record, the battery management system can determine whether the power battery-powered device is already connected to another charging pile. If the power battery-powered device is already connected to another charging pile, step S1032 is executed. If the power battery-powered device is not already connected to another charging pile, step S1035 is executed.

[0070] S1032: Determine whether, when the insertion signal is detected, the lines on the power battery driving device side of the charging circuit between the other charging piles and the power battery driving device are connected.

[0071] If the power battery-driven device is already connected to other charging piles, that is, the target charging pile is not the first charging pile to be connected to the power battery-driven device, then it is further determined whether the circuit on the power battery-driven device side of the charging circuit of the other charging piles and the power battery-driven device is connected when the insertion signal is detected. Exemplarily, in some embodiments of the present invention, whether the circuit on the power battery-driven device side of the charging circuit of the other charging piles and the power battery-driven device can be determined by determining the on / off state of the relay switch on the power battery-driven device side of the charging circuit of the other charging piles and the power battery-driven device. For example, if the relay switches on the power battery-driven device side of the charging circuit of the other charging piles and the power battery-driven device are both in a closed state, then it is determined that the circuit on the power battery-driven device side of the charging circuit of the other charging piles and the power battery-driven device is connected; if any one of the relay switches on the power battery-driven device side of the charging circuit of the other charging piles and the power battery-driven device is in an off state, then it is determined that the circuit on the power battery-driven device side of the charging circuit of the other charging piles and the power battery-driven device is not connected.

[0072] In other embodiments of the present invention, whether the line on the power battery driving device side of the charging circuit between other charging piles and the power battery driving device is connected can also be determined based on whether the battery management system sends a battery management system ready message to other charging piles. Figure 1 , it can be determined whether a battery management system ready message BRO 0X00 has been sent to other charging piles. If the battery management system ready message BRO0X00 has been sent to other charging piles, it is determined that the line on the power battery driving device side in the charging circuit of the other charging piles and the power battery driving device is connected (the relay switch on the power battery driving device side in the charging circuit of the other charging piles and the power battery driving device is closed); if the battery management system ready message BRO 0X00 has not been sent to other charging piles, it is determined that the line on the power battery driving device side in the charging circuit of the other charging piles and the power battery driving device is not connected (the relay switch on the power battery driving device side in the charging circuit of the other charging piles and the power battery driving device is not closed).

[0073] S1033: If the lines on the power battery driving device side in the charging circuit between the other charging piles and the power battery driving device are not connected, the insulation detection function of the power battery driving device is kept in an off state, and an instruction to turn on the insulation detection function is sent to the target charging pile.

[0074] See also Figure 1If it is determined in step S1032 that the power battery driving device side of the charging circuit between the other charging piles and the power battery driving device is not connected, it means that the other charging piles and the power battery driving device are still in the handshake stage or the early stage of the configuration stage, and the insulation detection function of the power battery driving device is turned off, then the insulation detection function of the power battery driving device is kept in the off state, and at the same time, an opening instruction for the insulation detection function is sent to the target charging pile. The target charging pile responds to the opening instruction and turns on the insulation detection function of the target charging pile. Figure 1 After receiving the insertion signal from other charging piles, the battery management system of the power battery drive device enters the handshake stage, and the insulation detection function of the power battery drive device is turned off. Before the line on the power battery drive device side in the charging circuit of other charging piles and the power battery drive device is connected (that is, before the battery management system sends the battery management system ready message BRO0X00 to other charging piles), it remains in a closed state, and is turned on when the line on the power battery drive device side in the charging circuit of other charging piles and the power battery drive device is connected; the insulation detection function of other charging piles is turned on when receiving the insertion signal from other charging piles, and remains in an open state before the line on the power battery drive device side in the charging circuit of other charging piles and the power battery drive device is connected, and is turned off when the line on the power battery drive device side in the charging circuit of other charging piles and the power battery drive device is connected. The subsequent interaction process between other charging piles and target charging piles and charging piles can be referred to. Figure 1 The message interaction process shown is not described in detail in the present invention.

[0075] It should be noted that when multiple other charging piles have been connected in advance, as long as one of the other charging piles is not connected to the line on the power battery driving device side in the charging circuit of the power battery driving device, the insulation detection function of the power battery driving device is maintained in the off state, and at the same time, an instruction to turn on the insulation detection function is sent to the target charging pile.

[0076] Figure 3 The present invention provides a flowchart of a plurality of charging piles for charging a power battery driven device, for example, Figure 3As shown, the battery management systems of the other charging piles and the power battery-driven device that are connected first enter the handshake stage, the configuration stage in sequence (in the configuration stage, before the lines on the power battery-driven device side in the charging circuit of the other charging piles and the power battery-driven device are connected (that is, before the battery management system sends the battery management system ready message BRO 0X00), the insulation detection function of the power battery-driven device is turned off, and after the lines on the power battery-driven device side in the charging circuit of the other charging piles and the power battery-driven device are connected, it is turned on), the charging stage and the end stage. When the target charging pile that follows is connected before the lines on the power battery-driven device side in the charging circuit of the other charging piles and the power battery-driven device are connected, the insulation detection function of the power battery-driven device is maintained in the closed state. In addition, the battery management system of the target charging pile and the power battery-driven device enter the handshake stage. After receiving the charging pile handshake message CHM, the battery management system sends a battery management system handshake message BHM to the charging pile. After receiving the battery management system handshake message BHM, the target charging pile turns on the insulation detection function. After that, other charging piles and battery management systems continue to execute the subsequent processes of the configuration phase, charging phase and end phase. The target charging pile and battery management system enter the configuration phase, charging phase and end phase in turn. The specific interaction process can be referred to Figure 1 The message interaction process shown in Figure 1 is as follows:

[0077] S1034: If the other charging piles are connected to the power battery driving device side line in the charging circuit of the power battery driving device, turn off the insulation detection function of the power battery driving device, and at the same time send an opening instruction of the insulation detection function to the target charging pile.

[0078] If it is determined in the above step S1032 that the lines on the power battery driving device side in the charging circuit of other charging piles and the power battery driving device are connected (that is, the battery management system has sent a battery management system ready message BRO 0X00 to other charging piles), and the insulation detection function of the power battery driving device is turned on, then the insulation detection function of the power battery driving device is turned off, and at the same time, an opening instruction for the insulation detection function is sent to the target charging pile. The target charging pile responds to the opening instruction and turns on the insulation detection function of the target charging pile. The subsequent interaction process between other charging piles and the target charging pile and the charging pile can be referred to Figure 1 The message interaction process shown is not described in detail in the present invention.

[0079] It should be noted that when multiple other charging piles have been connected first, if all other charging piles are connected to the lines on the power battery drive device side of the charging circuit of the power battery drive device, the insulation detection function of the power battery drive device will be turned off, and at the same time, an instruction to turn on the insulation detection function will be sent to the target charging pile.

[0080] Figure 4 Another flow chart of multiple charging piles provided by the present invention for charging a power battery driven device is shown as an example. Figure 4 As shown, the battery management systems of the other charging piles and the power battery-driven device that are connected first enter the handshake stage, the configuration stage (in the configuration stage, before the lines on the power battery-driven device side in the charging circuit of the other charging piles and the power battery-driven device are connected (that is, before the battery management system sends the battery management system ready message BRO0X00), the insulation detection function of the power battery-driven device is turned off, and after the lines on the power battery-driven device side in the charging circuit of the other charging piles and the power battery-driven device are connected, it is turned on), the charging stage and the end stage. When the target charging pile that follows is connected after the lines on the power battery-driven device side in the charging circuit of the other charging piles and the power battery-driven device are connected, the battery management system turns off the insulation detection function of the power battery-driven device. In addition, the battery management system of the target charging pile and the power battery-driven device enter the handshake stage. After receiving the charging pile handshake message CHM, the battery management system sends a battery management system handshake message BHM to the charging pile. After receiving the battery management system handshake message BHM, the target charging pile turns on the insulation detection function. After that, the other charging piles and the battery management system continue to execute the subsequent processes and the end phase of the charging phase, and the target charging pile and the battery management system enter the configuration phase, the charging phase and the end phase in sequence.

[0081] S1035: Turn off the insulation detection function of the power battery drive device, and at the same time send an instruction to turn on the insulation detection function to the target charging pile.

[0082] If it is determined in step S1031 that the power battery driven device is not connected to other charging piles, that is, the target charging pile is the first charging pile connected to the power battery driven device, refer to Figure 1 , the target charging pile and the battery management system enter the handshake phase, disabling the insulation detection function of the power battery drive device and simultaneously sending a command to the target charging pile to enable the insulation detection function. The target charging pile responds to the command and activates the insulation detection function. Thereafter, the target charging pile and the battery management system sequentially enter the configuration phase, the charging phase, and the termination phase.

[0083] The power battery driven device charging method provided by the present invention monitors the insertion signal of the charging gun of the charging pile inserted into the charging interface of the power battery driven device. When the insertion signal is detected, the currently connected charging pile is used as the target charging pile, the insulation detection function of the power battery driven device is turned off, and at the same time, an opening instruction for turning on the insulation detection function is sent to the target charging pile. The target charging pile responds to the opening instruction and turns on the insulation detection function of the target charging pile, thereby avoiding the situation where the insulation detection of the charging pile and the insulation detection of the power battery driven device are in the turned-on state due to the previously connected charging pile being connected before the target charging pile, resulting in the insulation detection of the power battery driven device interfering with each other. This enables multiple charging piles to charge the power battery driven device at the same time, thereby improving the charging efficiency.

[0084] In an embodiment of the present invention, after the insulation detection function of the power battery driving device is turned off and an instruction to turn on the insulation detection function is sent to the target charging pile, the following steps are also included:

[0085] S104: Determine whether the target charging pile is connected to a line on the power battery driving device side in a charging circuit of the power battery driving device.

[0086] In an embodiment of the present invention, the battery management system of the target charging pile and the power battery driving device sequentially enters the handshake phase, the configuration phase, the charging phase and the end phase. In the configuration phase, it is determined whether the line on the power battery driving device side of the charging circuit between the target charging pile and the power battery driving device is connected. For example, refer to Figure 1 , it can be determined whether the battery management system has sent a battery management system ready message BRO 0X00 to the target charging pile. If the battery management system ready message BRO 0X00 has been sent to the target charging pile, it is determined that the target charging pile and the line on the power battery driving device side of the charging circuit of the power battery driving device are connected. If the battery management system ready message BRO 0X00 has not been sent to the target charging pile, it is determined that the line on the power battery driving device side of the charging circuit of the power battery driving device is not connected.

[0087] S105: When the target charging pile is connected to the line on the power battery driving device side in the charging circuit of the power battery driving device, the insulation detection function of the power battery driving device is turned on, and at the same time, a shutdown instruction for turning off the insulation detection function is sent to the target charging pile.

[0088] In the above step S104, when the target charging pile and the power battery driving device side of the charging circuit are connected (the battery management system sends a battery management system ready message BRO0X00 to the target charging pile, and the relay switch on the power battery driving device side is closed), the reference Figure 1, turn on the insulation detection function of the power battery drive device, and at the same time send a shutdown instruction to the target charging pile to turn off the insulation detection function. The target charging pile responds to the shutdown instruction and turns off the insulation detection function of the target charging pile. Figure 1 ,Then, after confirming that the insulation detection function of the power battery drive ,device is turned on, the battery management system sends a ,battery management system ready message BRO 0XAA to the target charging pile, and ,executes subsequent message interaction actions.

[0089] S106: Determine whether the charging of the power battery-driven device is completed.

[0090] Exemplary, reference Figure 1 When the battery management system sends a BMS charging stop message BST to the target charging pile and receives a charging pile charging stop message CST sent by the charging pile, it determines that the charging of the power battery drive device is completed.

[0091] S107: Disconnect the charging circuit between the target charging pile and the power battery drive device, and turn off the insulation detection function of the power battery drive device.

[0092] refer to Figure 1 If the battery-powered device is fully charged, the device enters the termination phase, disconnecting the charging circuit between the target charging pile and the battery-powered device. This means disconnecting the relay switch in the charging circuit between the target charging pile and the battery-powered device, and disabling the insulation detection function of the battery-powered device. If the battery-powered device is still fully charged, the device continues to send a battery charging status message (BCS) to the charging pile to continue charging.

[0093] Figure 5 This is a schematic structural diagram of a power battery driving device charging system provided by the present invention, for example, Figure 5 As shown, the power battery driven equipment charging system includes:

[0094] The power battery driven device 100 includes a power battery 110 and a battery management system BMS. The power battery 110 includes multiple charging interfaces 111 (two are illustrated as examples in the figure). The charging interface 111 includes a first charging terminal A1 (including A1+ and A1-, A1+ is connected to the positive pole of the power battery, and A1- is connected to the negative pole of the power battery), a first plug-in monitoring terminal B1 and a first message AC terminal C1. The power battery 110 is connected to the first charging terminal A1 through a high-voltage wiring harness L1, and the battery management system BMS is connected to the first plug-in monitoring terminal B1 through a common wire L2. The battery management system BMS and the message AC terminal C1 can be connected through a communication bus, such as a CAN bus.

[0095] Multiple charging piles (two charging piles are taken as examples in the figure, namely charging pile A and charging pile B), each charging pile has at least one charging gun (each charging pile has two charging guns as an example in the figure), the charging gun includes a second charging terminal A2 (including A2+ and A2-, A2+ is connected to the positive pole of the charging gun, and A2- is connected to the negative pole of the charging gun), a second insertion monitoring terminal B2 and a second message AC terminal C2. When the charging gun is inserted into the charging interface 111 of the power battery drive device 100, the second charging terminal A2 is connected to the first charging terminal A1, the second insertion monitoring terminal B2 is connected to the first insertion monitoring terminal B1, and the second message AC terminal C2 is connected to the first message AC terminal C1.

[0096] Taking the charging circuit formed by connecting to charging gun 1 of charging pile A as an example, a positive charging relay switch K1+ is connected in series to the high-voltage wiring harness L1 connecting to the positive terminal of power battery 110, and a negative charging relay switch K1- is connected in series to the high-voltage wiring harness L1 connecting to the negative terminal of power battery 110. The positive charging relays in the charging circuit formed by connecting to other charging guns are K2+, K3+, and K4+, respectively, and the negative charging relays are K2-, K3-, and K4-, respectively. The present invention will not be further described here.

[0097] Exemplarily, the battery management system (BMS) includes an internal insertion monitoring circuit. When the charging gun is inserted into the charging port 111 of the power battery-driven device 100, the second insertion monitoring terminal B2 connects to the first insertion monitoring terminal B1, thereby communicating with the insertion monitoring circuit of the power battery-driven device 100 and generating a high-level signal or a low-level signal as an insertion signal. The battery management system is configured to execute the power battery-driven device charging method provided in any of the aforementioned embodiments of the present invention.

[0098] Figure 6 This is a schematic diagram of the structure of a power battery driving device charging device provided by the present invention, such as Figure 6 As shown, the power battery driven equipment charging device includes:

[0099] An insertion signal monitoring module 201 is used to monitor the insertion signal of the charging gun of the charging pile inserted into the charging interface of the power battery driven device;

[0100] The target charging pile confirmation module 202 is configured to use the currently connected charging pile as the target charging pile when the insertion signal is detected;

[0101] The insulation detection shutoff module 203 is used to shut down the insulation detection function of the power battery drive device and send an insulation detection function start instruction to the target charging pile. The target charging pile responds to the start instruction and turns on the insulation detection function of the target charging pile.

[0102] In some embodiments of the present invention, when the charging gun is inserted into the charging port of the power battery-driven device, it is connected to the insertion monitoring circuit of the power battery-driven device and generates a high-level signal or a low-level signal as an insertion signal.

[0103] In some embodiments of the present invention, the insulation detection shutdown module 203 includes:

[0104] A first judgment submodule is used to judge whether the power battery driven device has been connected to another charging pile when the insertion signal is detected;

[0105] a second judgment submodule, configured to determine, if the power battery driven device is already connected to the other charging pile, whether a line on the power battery driven device side in the charging circuit between the other charging pile and the power battery driven device is connected when the insertion signal is detected;

[0106] a maintaining submodule, for maintaining the insulation detection function of the power battery-driven device in a closed state if the line on the power battery-driven device side in the charging circuit of the power battery-driven device is not connected to the other charging pile, and at the same time sending an opening instruction for opening the insulation detection function to the target charging pile, wherein the insulation detection function of the power battery-driven device is closed upon receiving the insertion signal of the other charging pile, and is maintained in a closed state before the line on the power battery-driven device side in the charging circuit of the power battery-driven device is connected to the other charging pile, and is opened when the line on the power battery-driven device side in the charging circuit of the power battery-driven device is connected to the other charging pile; the insulation detection function of the other charging pile is opened upon receiving the insertion signal of the other charging pile, and is maintained in an open state before the line on the power battery-driven device side in the charging circuit of the power battery-driven device is connected to the other charging pile, and is closed when the line on the power battery-driven device side in the charging circuit of the power battery-driven device is connected to the other charging pile;

[0107] The first shutdown submodule is used to shut down the insulation detection function of the power battery driving device if the other charging pile is connected to the line on the power battery driving device side in the charging circuit of the power battery driving device, and at the same time send an opening instruction to the target charging pile to open the insulation detection function.

[0108] In some embodiments of the present invention, the insulation detection shutdown module 203 further includes:

[0109] The second shut-down submodule is configured to shut down the insulation detection function of the power battery-driven device if the power battery-driven device is not connected to another charging pile, and at the same time send an instruction to start the insulation detection function to the target charging pile.

[0110] In some embodiments of the present invention, the second judgment submodule includes:

[0111] A judgment unit, configured to judge whether to send a battery management system ready message to the other charging piles;

[0112] a connectivity determination unit, configured to determine, when determining that a battery management system readiness message is sent to the other charging pile, whether a line on the power battery driving device side of the charging circuit between the other charging pile and the power battery driving device is connected;

[0113] The disconnection determination unit is used to determine that the line on the power battery driving device side of the charging circuit between the other charging pile and the power battery driving device is not connected when it is determined that the battery management system is ready message has not been sent to the other charging pile.

[0114] In some embodiments of the present invention, the power battery driven device charging apparatus further comprises:

[0115] a connectivity determination module, configured to, after disabling the insulation detection function of the power battery-driven device and simultaneously issuing an instruction to enable the insulation detection function to the target charging pile, determine whether a line on the power battery-driven device side of the charging circuit between the target charging pile and the power battery-driven device is connected;

[0116] an insulation detection activation module, configured to activate an insulation detection function of the power battery drive device when a line on the power battery drive device side in a charging circuit between the target charging pile and the power battery drive device is connected, and simultaneously issue a shutdown instruction to the target charging pile to disable the insulation detection function, so that the target charging pile responds to the shutdown instruction and disables the insulation detection function of the target charging pile;

[0117] A charging completion judgment module, used to judge whether the charging of the power battery driven device is completed;

[0118] The circuit disconnection module is used to disconnect the charging circuit between the target charging pile and the power battery driving device when charging is completed, and to turn off the insulation detection function of the power battery driving device.

[0119] The above-mentioned power battery driven equipment charging device can execute the power battery driven equipment charging method provided by the aforementioned embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the power battery driven equipment charging method.

[0120] Figure 7A schematic diagram of the structure of an electronic device provided by the present invention. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0121] like Figure 7 As shown, the electronic device includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., which is communicatively connected to the at least one processor 11. The memory stores a computer program that can be executed by the at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 into the random access memory (RAM) 13. Various programs and data required for the operation of the electronic device can also be stored in the RAM 13. The processor 11, ROM 12, and RAM 13 are connected to each other via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0122] Multiple components in the electronic device are connected to the I / O interface 15, including an input unit 16, such as a keyboard, mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, optical disk, etc.; and a communication unit 19, such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.

[0123] The processor 11 can be any general-purpose and / or specialized processing component with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors that run machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the method for charging a power battery-driven device.

[0124] In some embodiments, the power battery-driven device charging method may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the power battery-driven device charging method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to execute the power battery-driven device charging method in any other appropriate manner (e.g., by means of firmware).

[0125] Various embodiments of the systems and techniques described herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system-on-chip systems (SOCs), programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include being implemented in one or more computer programs that are executable and / or interpreted on a programmable system that includes at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0126] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer program is executed by the processor, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The computer program may be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0127] In the context of the present invention, computer-readable storage media can be tangible media that can contain or store a computer program for use with an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. Computer-readable storage media can include but are not limited to electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, computer-readable storage media can be machine-readable signal media. More specific examples of machine-readable storage media can include electrical connections based on one or more lines, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0128] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0129] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0130] A computing system may include clients and servers. The clients and servers are typically remote from each other and typically interact via a communication network. This client-server relationship arises through computer programs running on the respective computers, creating a client-server relationship. The server may be a cloud server, also known as a cloud computing server or cloud host. This server is a hosting product within the cloud computing service ecosystem that addresses the management difficulties and limited scalability of traditional physical hosting and VPS services.

[0131] An embodiment of the present invention further provides a computer program product, including a computer program, which, when executed by a processor, implements the method for charging a power battery-driven device as provided in any embodiment of the present application.

[0132] The computer program product may be implemented by writing computer program code for performing the operations of the present invention in one or more programming languages, or a combination 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 stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer via 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).

[0133] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0134] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A method for charging a power battery driven device, characterized in that: include: Monitoring the insertion signal of the charging gun of the charging pile into the charging interface of the power battery driven device; When the insertion signal is detected, the currently connected charging pile is used as the target charging pile; turning off the insulation detection function of the power battery drive device and simultaneously sending an instruction to turn on the insulation detection function to the target charging pile, wherein the target charging pile responds to the instruction and turns on the insulation detection function of the target charging pile; Disabling the insulation detection function of the power battery drive device and simultaneously sending an instruction to enable the insulation detection function to the target charging pile includes: When the insertion signal is detected, determining whether the power battery driven device has been connected to another charging pile; If the power battery driven device is already connected to the other charging pile, determining whether a line on the power battery driven device side in a charging circuit between the other charging pile and the power battery driven device is connected when the insertion signal is detected; If the line on the power battery driving device side in the charging circuit of the power battery driving device and the other charging pile are not connected, the insulation detection function of the power battery driving device is maintained in a closed state, and at the same time, an opening instruction for opening the insulation detection function is issued to the target charging pile, wherein the insulation detection function of the power battery driving device is closed when receiving the insertion signal of the other charging pile, and is maintained in a closed state before the line on the power battery driving device side in the charging circuit of the power battery driving device and the other charging pile is connected, and is opened when the line on the power battery driving device side in the charging circuit of the power battery driving device and the other charging pile is connected; the insulation detection function of the other charging pile is opened when receiving the insertion signal of the other charging pile, and is maintained in an open state before the line on the power battery driving device side in the charging circuit of the power battery driving device and the other charging pile is connected, and is closed when the line on the power battery driving device side in the charging circuit of the power battery driving device and the other charging pile is connected; If the other charging pile is connected to the line on the power battery driving device side in the charging circuit of the power battery driving device, the insulation detection function of the power battery driving device is turned off, and an opening instruction for opening the insulation detection function is sent to the target charging pile.

2. The method for charging a power battery driven device according to claim 1, characterized in that: When the charging gun is inserted into the charging port of the power battery driving device, it is connected to the insertion monitoring circuit of the power battery driving device and generates a high level signal or a low level signal as an insertion signal.

3. The method for charging a power battery driven device according to claim 1, wherein: The method further includes: disabling the insulation detection function of the power battery driving device and simultaneously sending an instruction to enable the insulation detection function to the target charging pile; If the power battery driven device is not connected to other charging piles, the insulation detection function of the power battery driven device is turned off, and at the same time, an opening instruction for opening the insulation detection function is sent to the target charging pile.

4. The method for charging a power battery driven device according to claim 1, wherein: Determining whether, when the insertion signal is detected, a line on the power battery driving device side of the other charging pile and the charging circuit of the power battery driving device is connected includes: Determining whether to send a battery management system readiness message to the other charging piles; If so, determining that the other charging pile is connected to the line on the power battery driving device side in the charging circuit of the power battery driving device; If not, it is determined that the other charging piles are not connected to the circuit on the power battery driven device side in the charging circuit of the power battery driven device.

5. The method for charging a power battery driven device according to claim 1, characterized in that: After turning off the insulation detection function of the power battery driving device and sending an instruction to turn on the insulation detection function to the target charging pile, the method further includes: Determining whether the target charging pile is connected to a circuit on the power battery driving device side in a charging circuit of the power battery driving device; When the target charging pile is connected to a line on the power battery driving device side in a charging circuit of the power battery driving device, an insulation detection function of the power battery driving device is turned on, and at the same time, a shutdown instruction for shutting down the insulation detection function is sent to the target charging pile, and the target charging pile responds to the shutdown instruction and shuts down the insulation detection function of the target charging pile; Determining whether charging of the power battery-driven device is completed; If charging is completed, the charging circuit between the target charging pile and the power battery driving device is disconnected, and the insulation detection function of the power battery driving device is turned off.

6. A charging device for a power battery driven device, characterized in that: A method for charging a power battery-driven device according to any one of claims 1 to 5, comprising: An insertion signal monitoring module is used to monitor the insertion signal of the charging gun of the charging pile inserted into the charging interface of the power battery drive device; A target charging pile confirmation module is used to use the currently connected charging pile as the target charging pile when the insertion signal is detected; The insulation detection shutdown module is used to shut down the insulation detection function of the power battery drive device and at the same time send an insulation detection function start instruction to the target charging pile. The target charging pile responds to the start instruction and turns on the insulation detection function of the target charging pile.

7. A power battery driven device charging system, characterized in that: include: A power battery-driven device, the power battery-driven device comprising a power battery and a battery management system, the power battery comprising a plurality of charging interfaces, the charging interfaces comprising a first charging terminal, a first insertion monitoring terminal, and a first message exchange terminal, the power battery being connected to the first charging terminal via a high-voltage wiring harness, the battery management system being connected to the first insertion monitoring terminal, and the battery management system being connected to the first message exchange terminal, the battery management system being configured to execute the power battery-driven device charging method according to any one of claims 1 to 5; Multiple charging piles, each of which has at least one charging gun, and the charging gun includes a second charging terminal, a second insertion monitoring terminal and a second message exchange terminal. When the charging gun is inserted into the charging interface of the power battery drive device, the second charging terminal is connected to the first charging terminal, the second insertion monitoring terminal is connected to the first insertion monitoring terminal, and the second message exchange terminal is connected to the first message exchange terminal.

8. An electronic device, characterized in that: include: one or more processors; a storage device 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 power battery driven device charging method as described in any one of claims 1-5.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method for charging a power battery-driven device as described in any one of claims 1 to 5 is implemented.

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