Control system for electronic lock of direct-current double-head charging gun line of new energy electric vehicle

Abstract

The invention relates to the technical field of charging guns, and discloses a control system of a direct-current double-head charging gun line electronic lock of a new energy electric vehicle, which comprises an electronic lock control module, a signal sharing module, a temperature protection module, a circuit protection module and a control logic unit. According to the invention, the electromagnetic lock coil of the electronic lock control module is utilized to realize a locking function during charging; a CC1 line and a CC2 are shared to feed back the states of the electronic lock and the gun lock, and line resources are fully utilized; the control and the feedback of the electronic lock are realized under the condition of no electronic lock and no special circuit for feedback; the temperature protection module monitors the temperature of the gun head in real time; a normally closed gun lock microswitch of the circuit protection module is connected with an electronic lock coil in parallel and is linked with a CC1 wire and a CC2 wire; and the control logic unit performs charging control and electronic lock unlocking operation according to different state signals, so that the problems of no gun locking function, lack of temperature protection, slow circuit protection response and complex wiring of a charging gun in the prior art are solved, and the charging safety and the system reliability are improved.

Description

Technical Field

[0001] The present application relates to the technical field of charging guns, and specifically to a control system for an electronic lock of a DC double-ended charging gun line for new energy electric vehicles. Background Art

[0002] With the popularity of new energy vehicles, the safety and reliability of DC charging guns have become key issues. The existing DC double-ended charging gun cables for new energy electric vehicles are mainly used to connect testers and vehicles to detect charging performance, but the standard interface lacks electronic lock control and feedback signals, resulting in the inability to lock the gun during charging, and there is a safety hazard of high current when the gun is pulled out.

[0003] In addition, traditional solutions do not integrate a temperature protection mechanism, and long-term load on the gun head or circuit abnormalities can easily lead to overheating risks; at the same time, circuit protection relies on independent signal triggers, with slow response speed and complex wiring.

[0004] In the prior art, there are technologies that attempt to control electronic locks by reusing the positive terminal of a low-voltage auxiliary power supply. Specifically, Chinese Patent No. CN218958190U discloses a DC charging gun, a DC double-head gun, and a charging system for new energy vehicles. However, it only relies on the on-off state of the power supply to control the lock, lacks real-time state feedback, cannot cope with abnormal unlocking requirements in complex scenarios, and does not involve temperature protection. There is also a control system and control method for an electronic lock of an electric vehicle charging gun, such as Chinese Patent No. CN110745021B, which uses an independent module to realize electronic lock control, but does not optimize the charging gun structure, relies on additional lines to transmit signals, increases manufacturing costs and wiring complexity, and is not adapted to the special application scenarios of DC double-head guns.

[0005] Furthermore, the existing technologies generally fail to effectively utilize the original line resources of the charging gun, resulting in high system redundancy and insufficient reliability.

[0006] In summary, the existing technology urgently needs a new technical solution for controlling the electronic lock of the DC double-head charging gun line of new energy electric vehicles to make up for the significant defects in electronic lock control, state feedback, multi-dimensional protection and structural optimization, and improve the level of integration and reliability. Summary of the invention

[0007] The purpose of this application is to provide a control system for an electronic lock of a DC double-ended charging gun line of a new energy electric vehicle to solve the technical problems raised in the above-mentioned background technology.

[0008] To achieve the above purpose, the present application discloses the following technical solution: a control system for an electronic lock of a DC double-ended charging gun line of a new energy electric vehicle, the system comprising: The electronic lock control module includes an electromagnetic lock coil A and an electromagnetic lock coil B. The electromagnetic lock coil A is connected between the PE line and the CC1 line, and the electromagnetic lock coil B is connected to the CC1 line; The signal sharing module includes two electronic lock lines that are shared with the CC1 line and CC2 line respectively. They are merged into one CC2 line at the vehicle end gun head, and the CC1 pin at the vehicle end is left floating; The temperature protection module includes a temperature switch A and a temperature switch B which are connected in series to the S+S- twisted shielded pair wire and are respectively arranged in the equipment end gun head and the vehicle end gun head; The circuit protection module includes a CC2-linked normally closed gun lock micro switch, which is arranged in parallel with the electronic lock coil; The control logic unit is configured as: When not charging, the electronic lock is in the normally open state; After charging starts, the electromagnetic lock coil A and electromagnetic lock coil B are driven to close, and the locking state is fed back through the CC2 line short circuit to the ground; When receiving the gun lock disconnect signal or the temperature over-temperature signal, the charging is cut off and the electronic lock is unlocked.

[0009] Preferably, the signal sharing module feeds back locking and unlocking and micro switch disconnection signals through the short-circuit state of the CC2 line to ground.

[0010] Preferably, the temperature threshold of the temperature protection module is 100°C±5°C.

[0011] Preferably, the control logic unit determines the state of the electronic lock based on detecting the resistance value of the CC2 line to ground, and the determination is: When the resistance value is less than the preset lower resistance limit, it is determined to be in a locked state, and when the resistance value is greater than the preset upper resistance limit, it is determined to be in an unlocked state.

[0012] Preferably, the cross-sectional area of ​​the PE line is greater than or equal to 16 square millimeters, and the cross-sectional area of ​​the CC1 line and the CC2 line is greater than or equal to 0.75 square millimeters.

[0013] Preferably, the control logic unit is further configured to: trigger an emergency power off and issue an audible and visual alarm when it is detected that the CC2 line is disconnected from the PE.

[0014] Preferably, the system further comprises a message processing module, wherein the message processing module is configured as follows: Adjusting the timing of message sending based on a preset dynamic adjustment message sending timing model, wherein the input of the dynamic adjustment message sending timing model includes: a historical data sequence of the electronic lock state, a real-time charging progress percentage, and ambient temperature and humidity parameters; When the charging pile is in maintenance status and the electronic lock is locked, the sending of non-critical messages is suspended; Automatically delay message transmission during high load based on bus load rate. The delay time is The delay time calculation formula is used to calculate the delay time: in, is the maximum value operator, is the current bus load rate, is the preset bus load rate threshold, The preset maximum delay time.

[0015] As a preferred embodiment, the model for dynamically adjusting the timing of message sending calculates the timing of message sending based on the calculation formula of the timing of message sending. , the message sending timing calculation formula is: in, , and is the preset weight parameter, is the historical average sending time obtained based on monitoring the electronic lock status, It is the real-time charging progress percentage. is the real-time ambient temperature, is the preset ambient temperature threshold.

[0016] Preferably, the system further comprises a message optimization module, wherein the message optimization module is configured as follows: Calculate the compressed message length based on the message length calculation formula , the message length calculation formula is: in, is the original message length, It is the real-time statistical characteristic of the electronic lock status. is the compression rate function obtained by fitting based on the real-time statistical characteristics of the electronic lock state.

[0017] Preferably, the system further comprises a priority management module, wherein the priority management module is configured as follows: Calculate message priority based on anomaly severity and urgency ; Wherein, the severity of the abnormality The emergency level is calculated based on the degree to which the key parameters deviate from the normal range when the abnormality occurs, and the key parameters include at least current and voltage. Based on the ratio of the remaining time from the occurrence of an abnormality to the occurrence of serious consequences to the preset maximum allowable time; based on the priority calculation formula Calculate, where and are the weight coefficients of severity and urgency respectively; Based on the calculated message priority Divide into three priority levels: high, medium, and low, and allocate and dynamically adjust resources according to the priority levels; The resource allocation is: When there are multiple messages waiting to be transmitted on the bus, the transmission rights are allocated according to the calculated priority level. The high priority message is transmitted first, the medium priority message is second, and the low priority message is last. The dynamic adjustment is: Continuously monitor the status of the electronic lock. When the abnormal status frequency of the electronic lock is less than the preset abnormal status frequency threshold, reduce the message priority; if the abnormal status frequency of the electronic lock is greater than or equal to the abnormal status frequency threshold, increase the priority.

[0018] Beneficial effects: The control system of the electronic lock of the DC double-head charging gun line of the new energy electric vehicle of the present application utilizes the electromagnetic lock coil of the electronic lock control module to realize the locking function during charging; the common CC1 line and CC2 line are used to feedback the electronic lock and gun lock status, making full use of line resources; the temperature protection module monitors the gun head temperature in real time; the normally closed gun lock microswitch of the circuit protection module is connected in parallel with the electronic lock coil, and is linked with the CC1 and CC2 lines; the control logic unit performs charging control and electronic lock unlocking operations according to different status signals; thereby realizing the electronic lock control, real-time status feedback, temperature and circuit protection functions of the charging gun, solving the problems of the charging gun without gun locking function, lack of temperature protection, slow circuit protection response and complex wiring in the prior art, and improving charging safety and system reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of a control system for a new energy electric vehicle DC double-ended charging gun line electronic lock provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0022] In this article, the term "comprising" is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0023] This embodiment discloses Figure 1 A control system for a DC double-ended charging gun line electronic lock for a new energy electric vehicle is shown, the system comprising: The electronic lock control module includes an electromagnetic lock coil A and an electromagnetic lock coil B. The electromagnetic lock coil A is connected between the PE line and the CC1 line, and the electromagnetic lock coil B is connected to the CC1 line; The signal sharing module includes two electronic lock lines that are shared with the CC1 line and CC2 line respectively. They are merged into one CC2 line at the vehicle end gun head, and the CC1 pin at the vehicle end is left floating; The temperature protection module includes a temperature switch A and a temperature switch B which are connected in series to the S+S- twisted shielded pair wire and are respectively arranged in the equipment end gun head and the vehicle end gun head; The circuit protection module includes a normally closed gun lock micro switch linked to CC2 and arranged in parallel with the electronic lock coil; The control logic unit is configured as: When not charging, the electronic lock is in the normally open state; After charging starts, the electromagnetic lock coil A and electromagnetic lock coil B are driven to close, and the locking state is fed back through the CC2 line short circuit to the ground; When receiving the gun lock disconnect signal or the temperature over-temperature signal, the charging is cut off and the electronic lock is unlocked.

[0024] Based on the above, this embodiment uses the electromagnetic lock coil of the electronic lock control module to realize the locking function during charging; the common CC1 line and CC2 line feedback the electronic lock and gun lock status, making full use of line resources; the temperature protection module monitors the gun head temperature in real time; the normally closed gun lock microswitch of the circuit protection module is connected in parallel with the electronic lock coil, and is linked with the CC1 and CC2 lines; the control logic unit performs charging control and electronic lock unlocking operations according to different status signals; thereby realizing the electronic lock control, real-time status feedback, temperature and circuit protection functions of the charging gun, solving the problems of the charging gun without gun locking function, lack of temperature protection, slow circuit protection response and complex wiring in the prior art, and improving charging safety and system reliability.

[0025] Specifically, the signal sharing module feeds back locking and unlocking and micro switch disconnection signals through the short-circuit state of the CC2 line to the ground, and outputs positive and negative voltages to PE through the CC1 line to drive the electronic lock to lock or unlock.

[0026] Based on the above, this embodiment uses the design of feedback of the locking signal from the short-circuit state of the CC2 line to the ground in the signal sharing module, and feedback of the gun lock disconnection signal from the on-off state of the CC1 line, to achieve accurate feedback of the electronic lock and gun lock status. Compared with the lack of real-time status feedback or reliance on additional lines to transmit signals in the prior art, this design not only simplifies the line structure and reduces costs, but also enables the control logic unit to obtain the charging gun status information in a timely manner, thereby making charging control and electronic lock operation decisions more quickly and accurately, further improving the safety and stability of the charging process.

[0027] Specifically, the temperature threshold of the temperature protection module is 100°C±5°C.

[0028] Through the above, this embodiment realizes accurate protection of the gun tip temperature. When the gun tip temperature reaches the threshold, the temperature protection module is activated, the control logic unit cuts off the charging and unlocks the electronic lock, effectively avoiding the gun tip from overheating due to long-term load or circuit abnormality, and preventing safety accidents such as fire caused by overheating. It solves the problem of lack of temperature protection mechanism in the prior art, ensures the safety of the charging process, and extends the service life of the charging gun.

[0029] Specifically, the control logic unit determines the state of the electronic lock based on the resistance value of the CC2 line to ground, and the determination is: When the resistance value is less than the preset lower resistance limit, it is determined to be in a locked state, and when the resistance value is greater than the preset upper resistance limit, it is determined to be in an unlocked state.

[0030] Through the above, this embodiment realizes reliable judgment of the state of the electronic lock. When the resistance value is less than the preset lower limit of the resistance value (for example, 5Ω), it is judged as locked, and when it is greater than the preset upper limit of the resistance value (for example, 1kΩ), it is judged as unlocked. This judgment method is simple and effective. Compared with the situation in the prior art where the judgment method is unclear or relies on complex equipment, this design enables the system to quickly and accurately obtain the state of the electronic lock, provides a reliable basis for the decision of the control logic unit, ensures the correct identification of the state of the electronic lock during the charging process and the timely execution of the corresponding operation, and improves the reliability of the system.

[0031] Specifically, the cross-sectional area of ​​the PE line is greater than or equal to 16 square millimeters, and the cross-sectional area of ​​the CC1 line and the CC2 line is greater than or equal to 0.75 square millimeters.

[0032] Through the above, this embodiment achieves the optimization of line performance. The appropriate cross-sectional area ensures the current carrying capacity of the line and the stability of signal transmission, reduces the line resistance, reduces the power loss and signal interference, thereby solving the problems of line overload and unstable signal transmission that may exist in the prior art, improving the charging efficiency, ensuring the accuracy of electronic lock state feedback and control signal transmission, and enhancing the reliability and stability of the entire charging gun system.

[0033] Specifically, the control logic unit is further configured to: trigger an emergency power off and issue an audible and visual alarm when it is detected that the CC2 line is disconnected from the PE.

[0034] Through the above, this embodiment realizes a timely response to abnormal conditions of the charging system. It can quickly cut off the power supply when the charging gun has a serious fault or is accidentally disconnected, avoiding safety accidents caused by abnormal current. At the same time, it reminds the operator through sound and light alarms to timely discover and deal with problems. Compared with the lack of such emergency protection mechanism in the prior art, it greatly improves the safety and reliability of the charging process and ensures the safety of personnel and equipment.

[0035] Specifically, the system further includes a message processing module, and the message processing module is configured as follows: Adjusting the timing of message sending based on a preset dynamic adjustment message sending timing model, wherein the input of the dynamic adjustment message sending timing model includes: a historical data sequence of the electronic lock state, a real-time charging progress percentage, and ambient temperature and humidity parameters; When the charging pile is in maintenance status and the electronic lock is locked, the sending of non-critical messages is suspended; Automatically delay message transmission during high load based on bus load rate. The delay time is The delay time calculation formula is used to calculate the delay time: in, is the maximum value operator, is the current bus load rate, is the preset bus load rate threshold, The preset maximum delay time.

[0036] Through the above, this embodiment realizes intelligent management of message sending, avoids bus congestion, improves communication efficiency, reduces unnecessary message transmission, enables the system to operate efficiently and stably in different working states and environments, and enhances the overall performance and reliability of the system.

[0037] Specifically, the dynamic adjustment message sending timing model calculates the message sending timing based on the message sending timing calculation formula , the message sending timing calculation formula is: in, , and is the preset weight parameter, is the historical average sending time obtained based on monitoring the electronic lock status, It is the real-time charging progress percentage. is the real-time ambient temperature, is the preset ambient temperature threshold.

[0038] Based on the above, this embodiment realizes accurate calculation and dynamic adjustment of the timing of message sending. Compared with the traditional fixed sending timing method, it can more flexibly adapt to various changes in the charging process, such as the impact of ambient temperature on the performance of the electronic lock, real-time changes in charging progress, etc. It ensures that the message is sent at the most appropriate time, improves the timeliness and effectiveness of message transmission, and further optimizes the system communication efficiency and performance.

[0039] Specifically, the system further includes a message optimization module, and the message optimization module is configured as follows: Calculate the compressed message length based on the message length calculation formula , the message length calculation formula is: in, is the original message length, It is the real-time statistical characteristic of the electronic lock status. is the compression rate function obtained by fitting based on the real-time statistical characteristics of the electronic lock state.

[0040] Through the above, this embodiment achieves the optimization of message length. By effectively compressing the message, the data transmission volume is reduced, the data transmission speed is increased, the bus load is reduced, and the communication efficiency is improved. While ensuring the accurate transmission of key information such as the electronic lock status, the transmission delay and error caused by the excessive length of the message is avoided, and the reliability and stability of the system are enhanced.

[0041] Specifically, the system further includes a priority management module, and the priority management module is configured as follows: Calculate message priority based on anomaly severity and urgency ; Wherein, the severity of the abnormality The emergency level is calculated based on the degree to which the key parameters deviate from the normal range when the abnormality occurs, and the key parameters include at least current and voltage. Based on the ratio of the remaining time from the occurrence of an abnormality to the occurrence of serious consequences to the preset maximum allowable time; based on the priority calculation formula Calculate, where and are the weight coefficients of severity and urgency respectively; Based on the calculated message priority Divide into three priority levels: high, medium, and low, and allocate and dynamically adjust resources according to the priority levels; The resource allocation is: When there are multiple messages waiting to be transmitted on the bus, the transmission rights are allocated according to the calculated priority level. The high priority message is transmitted first, the medium priority message is second, and the low priority message is last. The dynamic adjustment is: Continuously monitor the status of the electronic lock. When the abnormal status frequency of the electronic lock is less than the preset abnormal status frequency threshold, reduce the message priority; if the abnormal status frequency of the electronic lock is greater than or equal to the abnormal status frequency threshold, increase the priority.

[0042] Based on the above, this embodiment realizes the reasonable allocation of bus resources according to the urgency and severity of abnormal situations in multi-message transmission scenarios, ensuring that important and urgent messages are transmitted first. At the same time, the priority is dynamically adjusted according to the abnormal frequency of the electronic lock state, so that the system can respond to the change of the electronic lock state in time, improve the emergency handling capability and overall operation efficiency of the system, and ensure the safety and stability of the charging process.

[0043] In summary, the control system of the electronic lock of the DC dual-head charging gun line of the new energy electric vehicle in this embodiment uses the electromagnetic lock coil of the electronic lock control module to realize the locking function during charging; the common CC1 line and CC2 line are used to feedback the electronic lock and gun lock status, making full use of line resources; the temperature protection module monitors the gun head temperature in real time; the normally closed gun lock microswitch of the circuit protection module is connected in parallel with the electronic lock coil, and is linked with the CC1 and CC2 lines; the control logic unit performs charging control and electronic lock unlocking operations according to different status signals; thereby realizing the electronic lock control, real-time status feedback, temperature and circuit protection functions of the charging gun, solving the problems of the charging gun without gun locking function, lack of temperature protection, slow circuit protection response and complex wiring in the prior art, and improving charging safety and system reliability.

[0044] In the embodiments provided in the present application, it should be understood that the embodiments described herein can be implemented in hardware, software, firmware, middleware, code, or any appropriate combination thereof. For hardware implementation, the processor can be implemented in one or more of the following units: an application-specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field programmable gate array (FPGA), a processor, a controller, a microcontroller, a microprocessor, other electronic units designed to implement the functions described herein, or a combination thereof. For software implementation, part or all of the processes of the embodiment can be completed by instructing the relevant hardware through a computer program. When implemented, the above program can be stored in a computer-readable storage medium or transmitted as one or more instructions or codes on a computer-readable storage medium. Computer-readable storage media include computer storage media and communication media, wherein the communication medium includes any medium that facilitates the transmission of a computer program from one place to another. The storage medium can be any available medium that can be accessed by a computer. Computer-readable storage media can include, but are not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store the desired program code in the form of an instruction or data structure and can be accessed by a computer.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A control system for a DC double-ended charging gun line electronic lock for a new energy electric vehicle, characterized in that: The system includes: The electronic lock control module includes an electromagnetic lock coil A and an electromagnetic lock coil B. The electromagnetic lock coil A is connected between the PE line and the CC1 line, and the electromagnetic lock coil B is connected to the CC1 line; The signal sharing module includes two electronic lock lines that are shared with the CC1 line and CC2 line respectively. They are merged into one CC2 line at the vehicle end gun head, and the CC1 pin at the vehicle end is left floating; The temperature protection module includes a temperature switch A and a temperature switch B which are connected in series to the S+S- twisted shielded pair wire and are respectively arranged in the equipment end gun head and the vehicle end gun head; The circuit protection module includes a normally closed gun lock micro switch linked to CC2 and arranged in parallel with the electronic lock coil; The control logic unit is configured as: When not charging, the electronic lock is in the normally open state; After charging starts, the electromagnetic lock coil A and electromagnetic lock coil B are driven to close, and the locking state is fed back through the CC2 line short circuit to the ground; When receiving the gun lock disconnect signal or the temperature over-temperature signal, the charging is cut off and the electronic lock is unlocked.

2. The control system of the new energy electric vehicle DC double-ended charging gun line electronic lock according to claim 1 is characterized in that: The signal sharing module feeds back locking and unlocking and micro switch disconnection signals through the short-circuit state of the CC2 line to the ground, and outputs positive and negative voltages to PE through the CC1 line to drive the electronic lock to lock or unlock.

3. The control system of the new energy electric vehicle DC double-ended charging gun line electronic lock according to claim 1 is characterized in that: The temperature threshold of the temperature protection module is 100°C±5°C.

4. The control system of the new energy electric vehicle DC double-ended charging gun line electronic lock according to claim 1 is characterized in that: The control logic unit determines the state of the electronic lock based on the resistance value of the CC2 line to ground, and the determination is: When the resistance value is less than the preset lower resistance limit, it is determined to be in a locked state, and when the resistance value is greater than the preset upper resistance limit, it is determined to be in an unlocked state.

5. The control system of the new energy electric vehicle DC double-ended charging gun line electronic lock according to claim 1 is characterized in that: The cross-sectional area of ​​PE wires is greater than or equal to 16 square millimeters, and the cross-sectional area of ​​CC1 wires and CC2 wires is greater than or equal to 0.75 square millimeters.

6. The control system of the new energy electric vehicle DC double-ended charging gun line electronic lock according to claim 1 is characterized in that: The control logic unit is also configured to: trigger an emergency power off and issue an audible and visual alarm when it is detected that the CC2 line is disconnected from the PE.

7. The control system of the new energy electric vehicle DC double-ended charging gun line electronic lock according to claim 1 is characterized in that: The system also includes a message processing module, which is configured as follows: Adjusting the timing of message sending based on a preset dynamic adjustment message sending timing model, wherein the input of the dynamic adjustment message sending timing model includes: a historical data sequence of the electronic lock state, a real-time charging progress percentage, and ambient temperature and humidity parameters; When the charging pile is in maintenance status and the electronic lock is locked, the sending of non-critical messages is suspended; Automatically delay message transmission during high load based on bus load rate. The delay time is The delay time calculation formula is used to calculate the delay time: in, is the maximum value operator, is the current bus load rate, is the preset bus load rate threshold, The preset maximum delay time.

8. The control system of the new energy electric vehicle DC double-ended charging gun line electronic lock according to claim 7 is characterized in that: The dynamic adjustment message sending timing model calculates the message sending timing based on the message sending timing calculation formula , the message sending timing calculation formula is: in, , and is the preset weight parameter, is the historical average sending time obtained based on monitoring the electronic lock status, It is the real-time charging progress percentage. is the real-time ambient temperature, is the preset ambient temperature threshold.

9. The control system of the new energy electric vehicle DC double-ended charging gun line electronic lock according to claim 1 is characterized in that: The system also includes a message optimization module, which is configured as follows: Calculate the compressed message length based on the message length calculation formula , the message length calculation formula is: in, is the original message length, It is the real-time statistical characteristic of the electronic lock status. is the compression rate function obtained by fitting based on the real-time statistical characteristics of the electronic lock state.

10. The control system of the new energy electric vehicle DC double-ended charging gun line electronic lock according to claim 1 is characterized in that: The system also includes a priority management module, wherein the priority management module is configured to: Calculate message priority based on anomaly severity and urgency ; Wherein, the severity of the abnormality The emergency level is calculated based on the degree to which the key parameters deviate from the normal range when the abnormality occurs, and the key parameters include at least current and voltage. Based on the ratio of the remaining time from the occurrence of an abnormality to the occurrence of serious consequences to the preset maximum allowable time; based on the priority calculation formula Calculate, where and are the weight coefficients of severity and urgency respectively; Based on the calculated message priority Divide into three priority levels: high, medium, and low, and allocate and dynamically adjust resources according to the priority levels; The resource allocation is: When there are multiple messages waiting to be transmitted on the bus, the transmission rights are allocated according to the calculated priority level. The high priority message is transmitted first, the medium priority message is second, and the low priority message is last. The dynamic adjustment is: Continuously monitor the status of the electronic lock. When the abnormal status frequency of the electronic lock is less than the preset abnormal status frequency threshold, reduce the message priority; if the abnormal status frequency of the electronic lock is greater than or equal to the abnormal status frequency threshold, increase the priority.

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