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

Abstract

The invention discloses a power battery driving equipment charging method, device and system, equipment and a medium. Monitoring an insertion signal that a charging gun of the charging pile is inserted into a charging interface of the power battery driving equipment, when the insertion signal is monitored, taking the currently accessed charging pile as a target charging pile, closing an insulation detection function of the power battery driving equipment, and sending a starting instruction for starting the insulation detection function to the target charging pile at the same time; the target charging pile responds to the starting instruction, the insulation detection function of the target charging pile is started, and it is avoided that the insulation detection function of the power battery driving equipment is in a starting state when the target charging pile is already connected to the prior access charging pile; the condition that insulation detection of the charging piles and insulation detection of the power battery driving equipment interfere with each other is avoided, the multiple charging piles can charge the power battery driving equipment at the same time, and the charging efficiency is improved.

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 motive force and is driven by an electric motor, such as electric vehicles, electric aircraft, etc.

[0003] During the use of power battery-driven devices, the long charging time is one of the current constraints affecting the popularization of pure power battery-driven devices. In order to shorten the charging time, there are currently two solutions on the market: the first solution is to set up multiple charging guns on one charging pile, and multiple charging guns charge power battery-driven devices at the same time; the second solution is to charge the power battery-driven devices at the same time with the charging guns of multiple charging piles.

[0004] For a solution where multiple charging guns of a charging pile charge power battery-driven devices at the same time, the maximum charging power is limited by the charging power of a single charging pile. When the battery system requires high-power supercharging, the existing solution cannot meet the high-power charging demand and has low charging efficiency. For charging guns of multiple charging piles to charge power battery-driven devices at the same time, multiple charging piles need to be started at the same time to charge the power battery-driven devices. However, in the actual charging process, it is difficult for multiple charging piles to start at the same time. If there is a time difference in starting multiple charging piles, they will interfere with each other during the interaction stage between multiple charging piles and power battery-driven devices, resulting in interaction failure and failure to charge. Summary of the invention

[0005] The present invention provides a method, device, system, equipment and medium for charging a power battery driven device, so as to avoid a situation where multiple charging piles interfere with each other when charging the power battery driven device, resulting in a situation where charging cannot be performed, and to enable 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 driving 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 at the same time, 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, 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 includes:

[0012] When the insertion signal is detected, determining whether the power battery driving 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 the line on the power battery driven device side in the charging circuit of 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 a start instruction of the insulation detection function is issued to the target charging pile at the same time, wherein the insulation detection function of the power battery driving device is closed when receiving the insertion signal of the other charging pile, 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 turned on 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 turned on when receiving the insertion signal of the other charging pile, 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 turned off 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, 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 also includes:

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

[0018] Optionally, determining whether 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 when the insertion signal is detected includes:

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

[0020] If yes, it is determined 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 line on the power battery driving device side in the charging circuit of the power battery driving 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] 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;

[0024] 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 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 driving 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, used to monitor the insertion signal of the charging gun of the charging pile inserted into the charging interface of the power battery driving 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 driving device, and at the same time send an opening instruction to the target charging pile to turn on the insulation detection function. The target charging pile responds to the opening 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 driving device charging system, comprising:

[0032] 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 interface 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, the battery management system being connected to the message exchange terminal, and the battery management system being used to execute the power battery driven device charging method provided by 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 AC 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 AC terminal is connected to the first message AC 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 driving 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 driving device. When the insertion signal is monitored, the currently connected charging pile is used as the target charging pile, the insulation detection function of the power battery driving device is turned off, and a start instruction of 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, thereby avoiding the situation that the insulation detection of the charging pile and the insulation detection of the power battery driving 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 charging pile interfering with the insulation detection of the power battery driving device, so that multiple charging piles can charge the power battery driving device at the same time, thereby improving the charging efficiency.

[0040] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily 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 It is a flowchart of the message interaction between the battery management system of the power battery drive device and the charging pile;

[0043] Figure 2 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 a plurality of charging piles provided by the present invention charging a power battery driven device;

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

[0046] Figure 5 A schematic diagram of the structure of a power battery driving device charging system provided by the present invention;

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

[0048] Figure 7 The present invention provides a schematic structural diagram of an electronic device.

[0049] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0050] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme 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 described embodiments 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 creative work should fall within the scope of protection of the present invention.

[0051] It should be noted that the terms "first", "second", etc. in the specification 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 data 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 that are 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 and charging pile of the power battery drive device 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-driven device, and exemplifies the message interaction process between the battery management system of the power battery-driven device and the charging pile. In other embodiments of the present invention, the power battery-driven device may also be other electric vehicles, electric aircraft or other devices that use the electric energy of a power battery as power and are driven by a motor. The embodiment of the present invention does not limit this. Other power battery-driven devices and charging piles can also be connected in accordance with Figure 1 The message interaction process shown is used for interaction, and the present invention will not be repeated here.

[0053] Handshake phase: After the charging gun of the charging pile is inserted into the charging port of the power battery driving device, the handshake phase is immediately entered. The charging pile sends a Charger Handshake Message (CHM) to the battery management system. The purpose is to initiate a request to the battery management system and tell the battery management system that it is about to prepare for charging. After receiving the charging pile handshake message CHM, the battery management system sends a battery management system handshake message (BMS HandshakeMessage, BHM) to the charging pile. The purpose is to respond to the charging pile handshake message CHM request of the charging pile and tell the charging pile that the charging process can start. After receiving the battery management system handshake message BHM, the charging pile turns on the insulation detection function. Insulation detection is to detect the insulation resistance between the device and the earth by certain means to determine whether the device has safety hazards such as leakage, so as to ensure the electrical safety of users and the surrounding environment. After confirming that the insulation resistance is normal, the charging pile sends a charging pile identification message CRM (Charger Recognize Message) 0X00 to the battery management system. The charging pile identification message CRM 0X00 includes basic information of the charging pile, such as the charging pile number, charging pile location, etc. After receiving the charging pile identification message CRM0X00, the battery management system sends a battery management system identification message (BMS Recognize Message, BRM) to the charging pile. The battery management system identification message BRM includes the unique identification code of the power battery drive device, voltage platform, battery capacity, hardware production information and software development information, etc. The charging pile identifies the information in the battery management system identification message BRM. If the identification is successful, the identification result is set to 0XAA (the initial value is 0X00), and the charging pile identification message CRM0XAA is sent to the battery management system. At this point, the power battery drive device and the charging pile have successfully shaken hands, and the handshake phase ends.

[0054] Configuration phase: After the handshake phase of the interaction between the charging pile and the power battery driving device is completed (i.e., the battery management system receives the battery management system identification message CRM 0XAA), the configuration phase is entered. In the configuration phase, the battery management system sends the power battery charging parameter message (Battery Charging Parameter, BCP) to the charging pile. The power battery charging parameter message BCP includes the maximum allowable charging voltage of the single battery, the maximum allowable total charging voltage, the maximum allowable charging current, the nominal total energy, the maximum allowable temperature, SOC, the current battery voltage of the power battery and other information. After receiving the power battery charging parameter message BCP, the charging pile sends the time synchronization information message (Charger Time Synchronization, CTS) and the charging pile maximum output capacity message (Charger Maximum Limit, CML) to the battery management system. The time synchronization information message CTS is 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 occurs with the battery management system. The charging pile maximum output capacity message CML includes the maximum and minimum charging voltages, maximum and minimum charging currents and other information of the charging pile. After the charging pile and the battery management system confirm that there are no problems with the parameters contained in the above message, the battery management system will send the battery management system charging ready message BRO (BMS Ready OK) 0X00 to the charging pile, close the relay switch on the power battery driving device side, and turn on the insulation detection function. At this time, the charging pile and the power battery driving device are connected in the charging circuit of the power battery driving device. After confirming that the relay switch on the power battery driving device side is closed, the battery management system sends the battery management system charging ready message BRO 0XAA to the charging pile. After receiving the battery management system charging ready message BRO 0XAA, the charging pile sends the charging pile output ready message CRO (Charger Ready OK) 0X00 to the battery management system, and controls the relay switch on the charging pile side to close. After confirming that the relay switch on the charging pile side is closed, it sends the charging pile output ready message CRO 0XAA to the battery management system. At this point, the configuration stage ends, and the charging circuit of the charging pile and the power battery driving device is connected.

[0055] Charging stage: After receiving CRO 0XAA, the battery management system enters the charging stage. The battery management system sends a battery charge demand message (Battery Charge Lead, BCL) and a battery charge status message (Battery Charge Status, BCS) to the charging pile. The battery charge demand message BCL contains the battery charging demand information (charging voltage, charging current, constant voltage charging or constant current charging, etc.), and the battery charge status message BCS contains the real-time charging status of the battery (voltage, current, SOC, etc.). This information comes from the sensor collection and calculation of the battery management system. After receiving the battery charge demand message BCL and the battery charge status message BCS, the charging pile sends the charging pile charging status message (Charger Charge Status, CCS) to report its current real-time output status (voltage, current, accumulated time, etc.) to the battery management system. This information comes from the sensor collection and calculation of the charging pile. While sending the charging pile charging status message CCS, the charging pile should adjust the output voltage and output current according to the requirements in the battery charge demand message BCL. In constant voltage charging mode, the output voltage of the charging pile should meet the voltage requirement value, and the output current should not exceed the current requirement value. In constant current charging mode, the output current of the charging pile should meet the current requirement value, and the output voltage should not exceed the voltage requirement value. After receiving the charging status message CCS from the charging pile, the battery management system sends a battery status message (Battery Status Message, BSM) to the charging pile at predetermined intervals, in order to report its own battery status information (bit number of the maximum single cell voltage, maximum and minimum single cell temperature and bit number, overvoltage, over SOC, overcurrent, overtemperature, insulation status, connector status, etc.) to the charging pile, ensuring that charging can be stopped in time when an abnormality occurs in the battery pack. When the battery is fully charged, the battery management system sends a BMS stop charging message (BMS Stop, BST) to the charger, in order to report to the charging pile that it is about to stop charging and the reason for stopping charging. After receiving the BMS stop charging message BST, the charging pile sends a charger stop charging message (Charger Stop, CST) to the battery management system, in order to report to the battery management system that it is about to stop charging and the reason for stopping. Alternatively, the charging pile actively stops charging and sends a charging pile suspension message CST to the battery management system. After receiving the charging pile suspension message CST, the battery management system sends a BMS suspension message BST to the charging pile. At this point, charging is completed and the charging phase ends.

[0056] Ending stage: After the charging pile sends the charging termination message CST and the BMS sends the charging termination message BST to each other during the charging stage, the end stage is entered. The battery management system sends the BMS statistics message (BMS Statistics Data, BSD) to the charging pile, with the purpose of reporting the statistical results of this charging process (SOC, maximum and minimum cell voltage, maximum and minimum cell temperature) to the charging pile. After receiving the BMS statistics message BSD, the charging pile stops outputting current and sends the charging pile statistics message (Charger Statistics Data, CSD) to the battery management system, with the purpose of reporting the statistical results of this charging process (accumulated charging time, charging degree, etc.) to the battery management system. After sending the charging pile statistics message CSD, the charging pile disconnects the relay switch on the charging pile side. After receiving the charging pile statistics message CSD, the battery management system disconnects the relay switch on the battery management system side. At this point, the charging process is completely over.

[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 stage of charging interaction, at this time, the battery management system has already turned on the insulation detection function. When the charging pile connected later is connected, it enters the handshake stage of interaction with the battery management system, and the charging pile needs to turn on the insulation detection function. At this time, the insulation detection function of the charging pile and the insulation detection function of the battery management system interfere with each other, and the collected insulation resistance value is incorrect, resulting in the charging pile connected first 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 the insertion signal of the charging gun of the charging pile into the charging interface of the 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 is not limited here. 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. In the embodiment of the present invention, an electric car is used 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 devices that are powered by the electric energy of a power battery and driven by a motor, and the embodiment of the present invention is not limited here. 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 be repeated 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 driving device. When the charging gun is inserted into the charging interface of the power battery driving device, the insertion monitoring circuit of the power battery driving 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 the embodiment of the present invention, when the battery management system detects the 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 driving device, and at the same time send a start instruction to the target charging pile to turn on the insulation detection function.

[0066] In an embodiment of the present invention, when it is detected that the charging gun of the target charging pile is inserted into the charging interface of the power battery driving device, the target charging pile and the power battery driving device enter the handshake stage and exchange data through message interaction. In order to avoid the possibility that the insulation detection function of the power battery driving device is turned on due to the prior access to the charging pile, resulting in the insulation detection of the charging pile and the insulation detection of the power battery driving device interfering with each other, when it is detected that the charging gun of the target charging pile is inserted into the charging interface of the power battery driving device, the insulation detection function of the power battery driving device is turned off, and at the same time, an opening instruction for opening the insulation detection function is issued to the target charging pile, and the target charging pile responds to the opening instruction and turns on 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 driving device; the second situation is: the target charging pile is the second or later charging pile connected to the power battery driving device. Based on this, the present invention first determines whether the target charging pile is the first charging pile connected or the first or later charging pile connected, and describes the specific process of step S103 for the two situations. 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 drive 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 other charging piles. Figure 1 During the handshake phase between the charging pile and the power battery driving device, the charging pile will send a charging pile identification message CRM to the power battery driving device. The battery management system records the charging pile identification message CRM each time the charging pile is connected, so that it can determine whether the power battery driving device has been connected to other charging piles based on the record. If the power battery driving device has been connected to other charging piles, step S1032 is executed. If the power battery driving device is not connected to other charging piles, step S1035 is executed.

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

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

[0072] In other embodiments of the present invention, it is also possible to determine 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 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 is ready message BRO 0X00 is sent to other charging piles. If a battery management system is 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 a battery management system is ready message BRO 0X00 is not 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 of 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 a closed state, and a start instruction for starting the insulation detection function is sent to the target charging pile.

[0074] See also Figure 1If it is determined in the above step S1032 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, it means that the other charging pile 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, a start instruction for starting the insulation detection function is sent to the target charging pile, and the target charging pile responds to the start 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 and remains in a closed state before the lines on the power battery drive device side in the charging circuit of other charging piles and the power battery drive device are connected (that is, before the battery management system sends a battery management system ready message BRO0X00 to other charging piles). It is turned on when the lines on the power battery drive device side in the charging circuit of other charging piles and the power battery drive device are 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 lines on the power battery drive device side in the charging circuit of other charging piles and the power battery drive device are connected. It is turned off when the lines on the power battery drive device side in the charging circuit of other charging piles and the power battery drive device are 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 of 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, a start command for turning on the insulation detection function is sent to the target charging pile.

[0076] Figure 3 A flowchart of a plurality of charging piles provided by the present invention for charging a power battery driven device is shown as an example. Figure 3As shown, the battery management system of the other charging piles and the power battery driving device connected first enters the handshake stage, the configuration stage (in the configuration stage, before 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 (that is, before the battery management system sends the battery management system ready message BRO 0X00), the insulation detection function of the power battery driving device is turned off, and after 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, it is turned on), the charging stage and the end stage. When the target charging pile in the back is connected before 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 insulation detection function of the power battery driving device is maintained in a closed state. In addition, the battery management system of the target charging pile and the power battery driving device enters the handshake stage, and the battery management system sends the battery management system handshake message BHM to the charging pile after receiving the charging pile handshake message CHM, and the target charging pile turns on the insulation detection function after receiving the battery management system handshake message BHM. After that, other charging piles and battery management systems continue to execute the subsequent processes of the configuration phase, the charging phase and the end phase. The target charging pile and battery management system enter the configuration phase, the charging phase and the end phase in turn. For the specific interaction process, please refer 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 lines 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 a start instruction for starting the insulation detection function is sent 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 of 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 opening 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 in advance, if all other charging piles are 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 will be turned off, and at the same time, a start instruction for turning on the insulation detection function will be sent to the target charging pile.

[0080] Figure 4 Another flowchart 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 system of the other charging piles and the power battery driving device connected first enters the handshake stage, the configuration stage (in the configuration stage, before the line of the power battery driving device side in the charging circuit of the other charging piles and the power battery driving device is connected (that is, before the battery management system sends the battery management system ready message BRO0X00), the insulation detection function of the power battery driving device is turned off, and it is turned on after the line of the power battery driving device side in the charging circuit of the other charging piles and the power battery driving device is connected), the charging stage and the end stage. When the target charging pile is connected after the line of the power battery driving device side in the charging circuit of the other charging piles and the power battery driving device is connected, the battery management system turns off the insulation detection function of the power battery driving device. In addition, the battery management system of the target charging pile and the power battery driving device enters the handshake stage, and the battery management system sends the battery management system handshake message BHM to the charging pile after receiving the charging pile handshake message CHM, and the target charging pile turns on the insulation detection function after receiving the battery management system handshake message BHM. After that, other charging piles and battery management systems continue to execute the subsequent processes and the end stage of the charging phase, and the target charging pile and battery management system enter the configuration phase, the charging phase and the end phase in turn.

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

[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 stage, turn off the insulation detection function of the power battery drive device, and send an opening instruction to the target charging pile to turn on the insulation detection function. The target charging pile responds to the opening instruction and turns on the insulation detection function of the target charging pile. After that, the target charging pile and the battery management system enter the configuration stage, charging stage and end stage in sequence.

[0083] The power battery driving 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 driving device. When the insertion signal is monitored, the currently connected charging pile is used as the target charging pile, the insulation detection function of the power battery driving device is turned off, and a start instruction of 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, thereby avoiding the situation that the insulation detection of the charging pile and the insulation detection of the power battery driving 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 charging pile interfering with the insulation detection of the power battery driving device, so that multiple charging piles can charge the power battery driving 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 in the charging circuit between the target charging pile and the power battery driving device is connected. 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 is connected to the line on the power battery driving device side in the charging circuit of the power battery driving device. If the battery management system ready message BRO 0X00 has not been sent to the target charging pile, it is determined that the target charging pile is not connected to the line on the power battery driving device side in the charging circuit of the power battery driving device.

[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 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 is connected to the line on the power battery driving device side in the charging circuit of the power battery driving device (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), then refer to Figure 1, turn on the insulation detection function of the power battery driving 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 performs subsequent message interaction actions.

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

[0090] Exemplary, reference Figure 1 When the battery management system sends a BMS charging termination message BST to the target charging pile and receives a charging pile charging termination 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 driving device, and turn off the insulation detection function of the power battery driving device.

[0092] refer to Figure 1 If the charging of the power battery driving device is finished, then the end stage is entered, the charging circuit between the target charging pile and the power battery driving device is disconnected, that is, the relay switch in 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. If the charging of the power battery driving device is not finished, the battery charging status message BCS is continued to be sent to the charging pile to continue charging.

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

[0094] A power battery driven device 100, the power battery driven device 100 includes a power battery 110 and a battery management system BMS, the power battery 110 includes a plurality of 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 insertion 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, the battery management system BMS is connected to the first insertion monitoring terminal B1 through a common wire L2, and 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] Among them, taking the charging circuit formed by connecting with the charging gun 1 of the charging pile A as an example, the high-voltage wire harness L1 of the positive electrode of the power battery 110 is connected in series with a positive charging relay switch K1+, and the high-voltage wire harness L1 connected to the negative electrode of the power battery 110 is connected in series with a negative charging relay switch K1-. The positive charging relays in the charging circuit formed by connecting with other charging guns are K2+, K3+, and K4+, and the negative charging relays are K2-, K3-, and K4-, which will not be described in detail in the embodiments of the present invention.

[0097] Exemplarily, an insertion monitoring circuit is provided inside the battery management system BMS. When the charging gun is inserted into the charging interface 111 of the power battery driving device 100, the second insertion monitoring terminal B2 is connected to the first insertion monitoring terminal B1, and the insertion monitoring circuit of the power battery driving device 100 is connected, generating a high level signal or a low level signal as an insertion signal. The battery management system is used to execute the power battery driving device charging method provided by any of the foregoing embodiments of the present invention.

[0098] Figure 6 A schematic diagram of a charging device for a power battery driving device provided by the present invention is shown in FIG. Figure 6 As shown, the power battery driving device 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 driving device;

[0100] The target charging pile confirmation module 202 is used 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 driving device, and at the same time send an opening instruction to the target charging pile to turn on the insulation detection function. The target charging pile responds to the opening 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 driving device, it is connected to the insertion monitoring circuit of the power battery driving device to generate 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 driving device has been connected to other charging piles when the insertion signal is detected;

[0105] A second judgment submodule is used to judge whether 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 when the insertion signal is detected if the power battery driving device is already connected to the other charging pile;

[0106] A maintenance submodule, for maintaining the insulation detection function of the power battery driving device in a closed state if the other charging pile is not 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 sending an opening instruction for opening the insulation detection function to the target charging pile, wherein the insulation detection function of the power battery driving device is closed upon receiving the insertion signal of the other charging pile, 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 is connected to the other charging pile, and opened when the line on the power battery driving device side in the charging circuit of the power battery driving 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, 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 is connected to the other charging pile, and closed when the line on the power battery driving device side in the charging circuit of the power battery driving 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 piles are 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 shutdown submodule is used to shut down the insulation detection function of the power battery driving device if the power battery driving device is not connected to other charging piles, and at the same time send a start instruction to the target charging pile to start the insulation detection function.

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

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

[0112] A connectivity determination unit, configured to determine that 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 when it is determined that a battery management system is ready message is sent to the other charging pile;

[0113] The disconnection determination unit is used to determine that the line on the power battery driving device side in 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 driving device charging device further includes:

[0115] A connectivity judgment module, used to judge whether 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 after turning off the insulation detection function of the power battery driving device and sending an opening instruction of the insulation detection function to the target charging pile;

[0116] An insulation detection start module, used for starting the insulation detection function of the power battery drive device when the target charging pile is connected to the line on the power battery drive device side in the charging circuit of the power battery drive device, and at the same time sending a shutdown instruction to the target charging pile to shut down the insulation detection function, and the target charging pile responds to the shutdown instruction to shut down the insulation detection function of the target charging pile;

[0117] A charging end judgment module, used to judge whether the charging of the power battery driving device is finished;

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

[0119] The above-mentioned power battery driven equipment charging device can execute the power battery driven equipment charging method provided by the above-mentioned embodiment of the present invention, and has the 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 required herein.

[0121] like Figure 7 As shown, the electronic device includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by 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 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

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

[0123] The processor 11 may be a variety of general and / or special processing components 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 running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 performs the various methods and processes described above, such as a 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 implementations of the systems and techniques described above 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), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including 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, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

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

[0128] To provide interaction with a user, the systems and techniques described herein may 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 a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0129] The systems and techniques described herein may be implemented in a computing system that includes backend 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 frontend components (e.g., a user computer with a graphical user interface or a 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 backend components, middleware components, or frontend components. The components of the system may 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 a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts 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 a method for charging a power battery driven device as provided in any embodiment of the present application.

[0132] In the process of implementation, the computer program product can be written in one or more programming languages ​​or a combination thereof to perform the computer program code of the present invention, including object-oriented programming languages, such as Java, Smalltalk, C++, and conventional procedural programming languages, such as "C" language or similar programming languages. The program code can 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 can 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 can be connected to an external computer (for example, using an Internet service provider to connect through the Internet).

[0133] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0134] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope 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 driving 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 driving 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. The target charging pile responds to the opening instruction and opens the insulation detection function of 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 to generate 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 or 2, characterized in that: 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 includes: When the insertion signal is detected, determining whether the power battery driving device has been connected to another charging pile; If the power battery driven device is already connected to the other charging pile, determining whether the line on the power battery driven device side in the charging circuit of 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 a start instruction of the insulation detection function is issued to the target charging pile at the same time, wherein the insulation detection function of the power battery driving device is closed when receiving the insertion signal of the other charging pile, 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 turned on 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 turned on when receiving the insertion signal of the other charging pile, 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 turned off 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.

4. The method for charging a power battery driven device according to claim 3, characterized in that: The method further includes: 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. If the power battery driving device is not connected to other charging piles, the insulation detection function of the power battery driving device is turned off, and at the same time, a start instruction for starting the insulation detection function is sent to the target charging pile.

5. The method for charging a power battery driven device according to claim 3, characterized in that: Determining whether the 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 when the insertion signal is monitored includes: Determine whether to send a battery management system readiness message to the other charging piles; If yes, it is determined 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 line on the power battery driving device side in the charging circuit of the power battery driving device.

6. The method for charging a power battery driven device according to claim 1, characterized in that: 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 method further includes: 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; 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 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 driving 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.

7. A charging device for a power battery driven device, characterized in that: include: An insertion signal monitoring module, used to monitor the insertion signal of the charging gun of the charging pile inserted into the charging interface of the power battery driving 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 driving device, and at the same time send an opening instruction to the target charging pile to turn on the insulation detection function. The target charging pile responds to the opening instruction and turns on the insulation detection function of the target charging pile.

8. 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 interface 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, the battery management system being connected to the message exchange terminal, and the battery management system being used to execute the power battery driven device charging method according to any one of claims 1 to 6; 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 AC 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 AC terminal is connected to the first message AC terminal.

9. 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 drive device charging method as described in any one of claims 1-6.

10. 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 6 is implemented.

Images