Cooperative control method for new energy automobile core power supply and 5G communication module

Abstract

The invention discloses a cooperative control method for a core power supply and a 5G communication module of a new energy automobile, relates to the technical field of new energy automobiles, and aims to solve the technical problem that effective data collaboration between the core power supply and the 5G communication module is difficult to ensure due to the fact that a data link adopted by a current control method is single. Comprising the following steps: establishing a data link while a core power supply is started; according to the cooperative control method, firstly, when the core power supply is started, a wired or wireless data link is synchronously established, and the design has the advantage that data communication between the core power supply and the 5G electronic module can be ensured no matter in a complex urban environment or a remote area. According to the cooperative control method for the new energy vehicle core power supply and the 5G communication module, cooperative work between the vehicle core power supply system and the 5G communication module is guaranteed through wired or wireless data link connection, and basic guarantee is provided for intelligent operation of the vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and more specifically, to a cooperative control method for the core power supply and 5G communication module of a new energy vehicle. Background Art

[0002] With the rapid development of the new energy vehicle industry and the increasing popularity of 5G communication technology, the intelligent level of vehicles has been continuously improved, posing higher requirements for the cooperative operation of the core power supply and 5G communication module. In traditional technologies, the power supply system and communication module of new energy vehicles often operate and manage relatively independently. The power supply part mainly focuses on its own power output, charge and discharge control, and basic fault detection, while the communication module focuses on functions such as signal transmission and data exchange. There is a lack of in-depth cooperation and integration mechanism between the two. This leads to many problems in practical applications. For example, in urban congested road conditions, due to the presence of a large number of electromagnetic interference sources around the vehicle, such as the electronic devices of other vehicles and communication base stations on the roadside, the traditional independent communication module may experience signal interruption or data transmission errors, affecting the real-time communication between the vehicle and the outside world, and further reducing the reliability and safety of intelligent driving assistance systems, vehicle networking functions, etc. At the same time, when the power supply system faces some emergencies, such as instant high-power power consumption requirements or its own faults, due to the lack of effective linkage with the communication module, it cannot timely and accurately transmit its own status information to the vehicle control system and the driver, challenging the overall performance and stability of the vehicle. Therefore, a method capable of realizing efficient cooperative control of the core power supply and 5G communication module of a new energy vehicle is needed to improve the stability, reliability, and intelligent level of the vehicle under various working conditions.

[0003] However, in the existing technology, the connection method of the data link is single, often relying only on wired connection or wireless connection. When only wired connection is used, the internal wiring of the vehicle is complicated, and the lines are easily damaged, resulting in data interruption; when only wireless connection is used, in areas with strong electromagnetic interference, such as urban complex electromagnetic environments, the data transmission stability is poor. At the same time, the adaptability to different environments is poor, and data communication may not be guaranteed due to weak signals in remote areas. It is difficult to ensure effective data cooperation between the core power supply and 5G communication module, resulting in the situation that when a power supply failure occurs, it is easy to fail to quickly and accurately judge the type and severity of the failure, affecting the fault handling and the restoration and reconstruction of the data link, and affecting the intelligent operation and normal operation of the vehicle. In view of this, we propose a cooperative control method for the core power supply and 5G communication module of a new energy vehicle. Summary of the Invention

[0004] The object of the present invention is to overcome the deficiencies of the prior art, meet the actual needs, and provide a cooperative control method for the core power supply of new energy vehicles and 5G communication modules, so as to solve the technical problem that the data link adopted by the current control method is single and it is difficult to ensure effective data cooperation between the core power supply and the 5G communication module.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: A cooperative control method for the core power supply of new energy vehicles and 5G communication modules, including the following steps:

[0006] S1: Startup link establishment: While the core power supply starts up, establish a data link, and the core power supply module is connected to the 5G electronic module through a wired data link or a wireless data link;

[0007] S2: Self-check and priority judgment: While the core power supply conducts self-check, establish a priority judgment, detect the health status of the core power supply, and establish a priority judgment table for the health status;

[0008] S3: Fault analysis by level: When analyzing the faults of the core power supply, combine the priority situation established in step 2 above, diagnose and analyze the specific fault situation, and establish the specific cause of the fault;

[0009] S4: Link break reexamination: Re-establish the data link, and judge whether the data link can be re-established according to the cause of the fault;

[0010] S5: If possible, re-link: If the cause of the fault allows the data link to be re-established, then re-establish the data link, otherwise, go to step S6;

[0011] S6: Power-off and troubleshooting: Perform the power-off operation of the 5G electronic module and the shutdown process of the core power supply, and then enter step S7 for troubleshooting and then re-establish the data link between the core power supply and the 5G electronic module;

[0012] S7: After troubleshooting, re-link: After troubleshooting, re-establish the data link between the core power supply and the 5G electronic module.

[0013] Preferably, the data link establishment in step S1 is established through a physical link or a wireless data link.

[0014] Preferably, while the core power supply conducts self-check in step S2 and establishes a priority judgment, it includes the following steps:

[0015] S201: Detect whether various parameters of the core power supply are normal;

[0016] S202: Assign values to whether the above detections are normal, 0 represents normal, and 1 represents abnormal;

[0017] S203: Sort the detection results in step S202 from high to low, and establish a core power supply health status priority table.

[0018] Preferably, the various parameters in step S201 include: whether the charger is connected, whether the internal communication of the charger is normal, whether the DC / DC module is normal, whether the battery pack temperature is normal, whether the voltage of each single battery is normal, whether the voltage difference between single batteries is normal, the high-voltage box, whether the working state of the battery pack is normal, whether the total voltage and total current monitoring is normal, whether the core power supply temperature is normal, the CAN bus status, and the fault status.

[0019] Preferably, the priorities in step S203 are as follows: charger status, internal communication status of the charger, DC / DC module status, battery pack temperature status, voltage status of each single battery, voltage difference status between single batteries, high-voltage box, working state of the battery pack, total voltage and total current monitoring status, core power supply temperature, CAN bus status, and other fault conditions.

[0020] Preferably, in step S201, the core power supply temperature is set as T, the bus voltage is V bus , the charge and discharge current of the battery pack is I battery , the ambient temperature is T env , and the heat dissipation coefficient of the core power supply is h, and the thermal resistance is R th ;

[0021] First, according to the heat conduction principle, the heat Q generated by the core power supply is related to the temperature difference, that is, the core power supply temperature minus the ambient temperature and the thermal resistance, and can be expressed by the following formula:

[0022]

[0023] At the same time, this heat will affect the internal resistance R battery (T) of the battery pack. Based on the common model of battery characteristics, it is assumed that the relationship between the internal resistance and the temperature follows an exponential function form;

[0024]

[0025] Among them, R battery 0 is the internal resistance of the battery pack at the reference temperature T 0 , and k 3 is a coefficient related to the battery material and characteristics.

[0026] Preferably, for the core power supply fault analysis in step S3, first, perform detections in sequence according to the priority judgment table established in step S2 from high to low; when a certain item fails, perform the next detection according to the order of this priority table until the specific fault cause is confirmed, including the following steps:

[0027] S301: First, detect the connection status of the charger of the core power supply and the internal communication status of the core power supply; when there is a problem with the charger connection status, turn off the charger; detect whether the fault source is caused by the charger; otherwise, execute step S302;

[0028] S302: Detect the working status of the DC / DC of the core power supply. When the DC / DC module fails, check whether it is an independent fault or caused by too high or too low bus voltage; when the DC / DC module failure is an independent fault, further analyze the cause and execute step S303; when the DC / DC module failure is caused by too high or too low bus voltage, execute step S305;

[0029] S303: Detect the status of the battery pack of the core power supply. When the group temperature is abnormal, analyze whether it is caused by abnormal single-cell voltage, too high single-cell temperature of the battery, or independent abnormality; when the single-cell voltage is abnormal, give priority to diagnosing the abnormal single-cell voltage and execute step S304; when the fault is caused by the abnormal temperature of the battery pack, perform a temperature fault diagnosis and execute step S309; when the fault is caused by an independent abnormality, start analyzing the specific cause of the fault;

[0030] S304: Detect the status of the single-cell voltage of the core power supply. When the voltage is abnormal, find out whether it is an independent abnormality or caused by too high temperature of the battery pack; when the temperature is too high, perform an abnormal diagnosis of the battery pack group temperature and execute step S306; when it is an independent abnormality, perform a specific fault cause analysis;

[0031] S305: Detect the working status of the high-voltage box. When the status of the high-voltage box is abnormal, analyze whether the status of the high-voltage box is caused by abnormal temperature of the battery pack or abnormal working status of the battery pack. When it is determined, perform an abnormal diagnosis of the battery pack group temperature and an abnormal diagnosis of the battery pack working status, and execute step S306 and step S307 respectively; when it is not, perform an abnormal detection of overvoltage and overcurrent of the battery pack, analyze the overvoltage status of the battery pack, and execute step S308;

[0032] S306: Detect the temperature of the battery pack. When the group temperature is abnormal, detect whether it is caused by abnormal working status of the battery pack. When it is determined, perform an abnormal detection of the working status of the battery pack and execute step S307; when the abnormal temperature of the battery pack is an independent abnormality, perform a specific fault cause analysis;

[0033] S307: Detect the working status of the battery pack. When the working status is abnormal, detect whether it is caused by abnormal temperature of the battery pack. When it is determined, perform an abnormal detection of the temperature of the battery pack and re-execute step S306; when the abnormal working status of the battery pack is an independent abnormality, perform a specific fault cause analysis;

[0034] S308: Detect overvoltage or overcurrent of the battery pack. When the voltage or overcurrent is abnormal, check whether it is an independent abnormality or caused by excessive bus voltage or overcurrent. When it is determined that it is caused by excessive bus voltage or overcurrent, detect the battery pack temperature and the working state of the battery pack, and re-execute steps S306 and S307; when it is determined that it is an independent abnormality, detect the core power supply temperature and execute step S309;

[0035] S309: When the core power supply temperature is detected to be abnormal, check whether it is an independent abnormality or caused by excessive bus voltage. When it is determined that the voltage is too high, turn off the DC / DC and the charger input; otherwise, detect the bus voltage and the bus current.

[0036] Preferably, the re - establishment of the data link in step S4 includes the following steps:

[0037] S401: When the core power supply temperature is too high and causes bus overvoltage, establish the data link according to step S1;

[0038] S402: When the bus overvoltage or overcurrent causes DC / DC abnormality, detect the core power supply temperature, the core voltage, and the core current. When there are abnormalities in temperature, voltage, and current, and it is judged as an independent abnormality, establish the data link according to step S1; when the core power supply temperature, the core voltage, and the core current are normal, first turn off the DC / DC, and then establish the data link according to step S1;

[0039] S403: When the DC / DC abnormality and the battery pack temperature abnormality cause bus overvoltage, detect the battery pack temperature and the working state of the battery pack. When the battery pack temperature or the working state is abnormal, establish the data link according to step S1; when the battery pack temperature and the working state are normal, detect the bus voltage, the core power supply temperature, the core voltage, the core current, and the overvoltage or overcurrent state of the battery pack; when there are abnormalities, establish the data link according to step S1; when the temperature, voltage, and current are all normal, first turn off the DC / DC and then establish the data link according to step S1;

[0040] S404: When the working state of the battery pack is abnormal and causes the battery pack temperature to be abnormal, detect the battery cell voltage, the battery pack temperature, and the battery cell temperature. When the battery pack temperature or the battery cell temperature is abnormal, establish the data link according to step S1; when the battery pack temperature and the battery cell voltage are normal, detect the core voltage and current. When there are abnormalities in the core voltage or current, establish the data link according to step S1; when the core voltage and current are normal, detect the battery cell voltage and the battery pack temperature. When one of them is abnormal, establish the data link according to step S1; when both are normal, first turn off the DC / DC and then establish the data link according to step S1;

[0041] S405: When the DC / DC anomaly and the battery pack temperature anomaly are causally related to each other, detect the core voltage, core current, and individual battery voltage. If all three are normal, first turn off the DC / DC and then establish the data link according to the steps in S1; if any one of the detections is abnormal, establish the data link according to the steps in S1.

[0042] S406: When the battery pack temperature anomaly and the battery pack working anomaly are causally related to each other, detect the individual battery voltage, battery pack temperature, and individual battery temperature. If the individual battery temperature or voltage is abnormal, establish the data link according to step 1; if the individual battery temperature and individual battery voltage are both normal, then perform detections on the core voltage, bus voltage, and bus current. If there is an abnormality, establish the data link according to the steps in S1; if the core voltage, bus voltage, and bus current are all normal, first turn off the DC / DC and then establish the data link according to the steps in S1.

[0043] S407: When the core power supply temperature, core voltage, and core current are all normal, detect the battery pack temperature, bus voltage, and bus current. If there is an abnormality, establish the data link according to the steps in S1; if the battery voltage and bus current are both normal, establish the data link according to the steps in S1.

[0044] S408: When the battery pack temperature anomaly, battery pack working anomaly, battery overvoltage or overcurrent are all normal while the core power supply temperature is abnormal, detect the individual battery voltage and individual battery temperature. If there is an abnormality, establish the data link according to the steps in S1; if the individual battery temperature and individual battery voltage are both normal, then detect the core voltage, bus voltage, and bus current. If there is an abnormality, establish the data link according to the steps in S1. If the individual battery temperature, individual battery voltage, core voltage, bus voltage, and bus current are all normal, first turn off the DC / DC and then establish the data link according to the steps in S1.

[0045] S409: When the core power supply temperature, core voltage, and core current are all normal, detect the bus voltage, bus current, battery pack temperature, and battery pack working status. If there is an abnormality, establish the data link according to the steps in S1; if the bus voltage, bus current, battery pack temperature, and battery pack working status are all normal, establish the data link according to the steps in S1.

[0046] Preferably, the power-off operation of the 5G electronic module and the core power supply shutdown process in step S6 specifically include the following: When performing the processing operation after completing the core power supply fault analysis, according to the cause of the fault, if the core power supply is abnormal and needs to be shut down, then turn off the DC / DC, turn off the charger, and turn off the 5G electronic module in order of priority, and then perform the core power supply shutdown process.

[0047] Compared with the prior art, the beneficial effects of the present invention are:

[0048] 1. The collaborative control method of the present invention first establishes a data link synchronously when the core power supply is started. This link can be wired, ensuring the stability of data transmission through physical connection; it can also be wireless, using wireless technology to achieve flexible data interaction. The advantage of this design is that it can ensure data communication between the core power supply and the 5G electronic module, whether in a complex urban environment or a relatively remote area. The present invention proposes a collaborative control method for the core power supply of a new energy vehicle and a 5G communication module, which is connected through a wired or wireless data link to ensure the collaborative work between the vehicle's core power supply system and the 5G communication module, providing a basic guarantee for the intelligent operation of the vehicle.

[0049] 2. The present invention introduces a core power self-check and priority judgment mechanism. In the core power self-check link, many key parameters will be detected, such as whether the charger is connected, whether the internal communication is normal, and other parameters. For these parameters, their status is simply and intuitively represented by assignment, 0 represents normal, and 1 represents abnormal. Then, according to these test results, they are sorted from high to low to establish a core power health status priority table. In this way, when faced with a variety of possible faults, they can be quickly checked in order of priority. The present invention introduces a core power self-check and priority judgment mechanism to detect the core power health status and fault type in real time. Once a problem occurs, it can be detected and processed in the first time, thereby ensuring the normal operation of the core power supply and even the entire vehicle, and avoiding more serious problems caused by untimely fault troubleshooting.

[0050] 3. The collaborative control method of the present invention has an intelligent processing mechanism. After completing the core power supply fault analysis, the subsequent operation will be determined based on the cause of the fault. If the cause of the fault allows, the data link can be re-established. When the fault is more serious, such as when the core power supply is abnormal and needs to be shut down, the operation will be performed according to priority, and the DC / DC will be shut down, the charger will be shut down, the 5G electronic module will be shut down, and finally the core power supply will be shut down. The present invention performs intelligent processing of re-establishing the data link or shutting down the 5G electronic module and restarting the core power supply according to the cause of the fault. After the fault is eliminated, the data link between the core power supply and the 5G electronic module will be restored to ensure that the vehicle can continue to operate safely and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a schematic diagram of the steps of the present invention. DETAILED DESCRIPTION

[0052] Embodiment 1, as Figure 1 As shown, the present invention relates to a method for collaboratively controlling a core power supply and a 5G communication module of a new energy vehicle, comprising the following steps:

[0053] S1: Startup Chain Building: While the core power supply starts up, a data link is established. The core power supply module is connected to the 5G electronic module through a wired data link or a wireless data link; The data link establishment in step S1 is through physical link establishment or wireless data link establishment.

[0054] In the electrical architecture of new energy vehicles, the establishment of a data link between the core power supply module and the 5G electronic module is crucial.

[0055] Physical link establishment may involve using specific cable connection methods, such as using shielded twisted pair cables to reduce the impact of electromagnetic interference on data transmission. Its transmission rate and stability depend on the cable specifications and quality.

[0056] For wireless data link establishment, it is necessary to consider using appropriate wireless communication protocols, such as Wi-Fi, Bluetooth, or dedicated vehicle networking wireless communication standards, taking into account factors such as transmission distance, bandwidth, and anti-interference ability.

[0057] In actual application scenarios, if the vehicle is in a complex urban electromagnetic environment, the wireless data link may be interfered by other surrounding wireless devices. At this time, the stability advantage of the physical link is reflected; while when the vehicle has some flexible wiring or temporary data transmission requirements, the convenience of the wireless data link is more prominent.

[0058] S2: Self-Inspection and Priority Judgment: While the core power supply conducts self-inspection, a priority judgment is established to detect the health status of the core power supply and establish a priority judgment table for the health status.

[0059] While the core power supply conducts self-inspection and establishes a priority judgment in step S2, it includes the following steps:

[0060] S201: Detect whether various parameters of the core power supply are normal; The various parameters in step S201 include: whether the charger is connected, whether the internal communication of the charger is normal, whether the DC / DC module is normal, whether the battery pack temperature is normal, whether the voltage of each single battery is normal, whether the voltage difference between single batteries is normal, the working status of the high-voltage box and the battery pack, whether the total voltage and total current monitoring are normal, the temperature of the core power supply, the CAN bus status, and the fault status.

[0061] Whether the charger is connected not only affects whether the power supply can be charged normally but also impacts the energy replenishment process of the entire power supply system. When the charger is not connected, it may be due to loose plugs, charging line faults, or electrical problems with the charger itself. By detecting parameters such as the relay status and input / output voltage inside the charger, its connection status can be preliminarily judged.

[0062] Normal internal communication of the charger is crucial for coordinating voltage and current control during the charging process. Communication failures may lead to inaccurate transmission of charging parameters, affecting battery life and charging efficiency. Its communication methods may include CAN bus communication or other dedicated communication protocols. When detecting, it is necessary to check the integrity, accuracy of communication data packets and whether the communication rate meets the standards.

[0063] The DC / DC module is responsible for converting the high voltage of the battery pack into a stable low voltage required by other electronic systems of the vehicle. Its normal operation is the key to ensuring the stable operation of each electronic device in the vehicle. To detect whether it is normal, parameters such as the stability of the output voltage, conversion efficiency, and the temperature inside the module can be monitored. For example, when the output voltage of the DC / DC module fluctuates beyond a certain range, it may indicate that components such as switching transistors, inductors, or capacitors inside the module are faulty.

[0064] The temperature of the battery pack directly affects the performance and safety of the battery. Excessive temperature may accelerate the aging of the battery and even cause dangerous situations such as thermal runaway; too low temperature will reduce the charge and discharge performance of the battery. Through the temperature sensors installed in the battery pack, the temperature of the battery pack can be monitored in real time and compared with the preset temperature threshold. At the same time, the change of the temperature of the battery pack may also be related to the charge and discharge current of the battery, the ambient temperature, and the working state of the heat dissipation system.

[0065] The balance of the voltages of each single battery has an important impact on the overall performance and life of the battery pack. Too high or too low voltage of a single battery may indicate overcharging, over-discharging or other potential problems of that single battery. Accurately measure the voltages of each single battery and calculate the voltage difference between single batteries. When the voltage difference exceeds a certain value, balancing measures need to be taken, such as passive balancing (discharging through a resistor to reduce the voltage of the single battery with a high voltage) or active balancing (using an energy transfer circuit to transfer the energy of the single battery with a high voltage to the single battery with a low voltage).

[0066] The high-voltage box mainly controls the on-off of the high-voltage circuit of the battery pack and plays a protective role. Detecting its working state includes checking the closing condition of the high-voltage relay, the state of the fuse, and the integrity of the high-voltage interlock loop, etc. If the high-voltage box fails, it may cause the high-voltage circuit to fail to be connected normally or pose safety hazards such as electric leakage.

[0067] The working state of the battery pack covers information such as the charge and discharge mode, remaining power, and power output of the battery. Accurately grasping the working state of the battery pack is of guiding significance for the power output and energy management of the vehicle. Through the algorithms in the battery management system (BMS), the state of charge (SOC), state of health (SOH), and power state (SOP) of the battery pack can be calculated in real time and compared with the preset working range to judge whether it is working normally.

[0068] Monitoring of the total voltage and total current can reflect the overall electrical performance of the battery pack. Abnormal total voltage may be caused by faults in some individual cells in the battery pack, loose connection lines, or charging system faults, etc.; abnormal total current may be related to sudden changes in the electrical load of the vehicle, unstable charging current, or internal short circuit of the battery, etc. The total voltage and total current are monitored in real time through high-precision voltage and current sensors, and reasonable alarm thresholds are set to detect potential problems in a timely manner.

[0069] In addition to being related to its own heat dissipation design and working load, the temperature of the core power supply is also affected by factors such as the temperature of the battery pack, the ambient temperature, and the heat radiation of the vehicle electronic system. Excessive core power supply temperature may lead to a decline in the performance of electronic components, shortened lifespan, or even damage. Temperature sensors are used to monitor the temperature of key parts of the core power supply, and heat dissipation measures such as cooling fans and liquid cooling systems are combined to ensure that the core power supply temperature is maintained within the normal range.

[0070] As an important link for communication between internal electronic systems of the vehicle, the status of the CAN bus directly affects data interaction between modules. Detecting the status of the CAN bus includes checking parameters such as the bus level signal, baud rate, and number of error frames. When a fault occurs in the CAN bus, it may cause communication interruption between the core power supply module and other control modules (such as the motor controller, body electronic module, etc.), thereby affecting the normal operation of the vehicle.

[0071] The fault status is a comprehensive indicator that covers abnormal situations occurring in the above parameter detections and other potential fault information not listed separately. By recording and analyzing the fault status, the fault source can be quickly located and corresponding repair measures can be taken.

[0072] Set the core power supply temperature as T, the bus voltage as V in step S201 bus , the charge and discharge current of the battery pack is I battery , the ambient temperature is T env , and the heat dissipation coefficient of the core power supply is h, and the thermal resistance is R th ;

[0073] First of all, according to the heat conduction principle, the heat Q generated by the core power supply is related to the temperature difference, that is, the core power supply temperature minus the ambient temperature and the thermal resistance, and can be expressed by the following formula:

[0074]

[0075] At the same time, this heat will affect the internal resistance R battery (T) of the battery pack. Based on a common model of battery characteristics, it is assumed that the relationship between the internal resistance and the temperature follows an exponential function form;

[0076]

[0077] wherein, R battery 0 is the internal resistance of the battery pack at the reference temperature T 0 , and k 3 is a coefficient related to the battery material and characteristics.

[0078] S202: Assign values to whether each of the above detections is normal, where 0 represents normal and 1 represents abnormal.

[0079] Assigning values to each detection parameter provides a quantitative basis for establishing a priority judgment table later. Assigning the normal state as 0 and the abnormal state as 1, this simple and intuitive assignment method facilitates rapid data processing and logical judgment by the computer system. For example, in actual BMS software programming, one byte of data bits can be used to represent the states of each parameter, where each bit corresponds to a parameter, and 0 or 1 indicates whether the parameter is normal or not, so that a large amount of detection data can be stored and processed efficiently.

[0080] S203: Sort the detection results in step S202 from high to low to establish a priority table for the health status of the core power supply; the priorities in step S203 are as follows: charger status, internal communication status of the charger, DC / DC module status, battery pack temperature status, voltage status of each single battery, voltage difference status of single batteries, high-voltage box, battery pack working status, total voltage and total current monitoring status, core power supply temperature, CAN bus status, and other fault conditions.

[0081] The basis for determining the priorities mainly comes from the degree of impact on vehicle safety and performance. The charger status and the internal communication status of the charger are ranked at the top because the charging process is a key link to ensure the vehicle's endurance. If there are problems during charging, it will not only affect the use of the vehicle but also may cause irreversible damage to the battery. The DC / DC module provides stable power for many electronic devices, and its failure may cause some functions of the vehicle to fail, affecting the driving experience and safety. The battery pack temperature, the voltage and voltage difference of single batteries, etc. are closely related to the safety and performance of the battery. Abnormal conditions may lead to serious consequences such as battery thermal runaway and shortened battery life. Abnormalities in parameters such as the high-voltage box, battery pack working status, total voltage and total current monitoring will also directly affect the safety of the vehicle's high-voltage system and power distribution. Excessive core power supply temperature may damage the internal components of the power supply, while CAN bus faults will affect the coordinated operation of the entire vehicle electronic system. Other fault conditions are relatively less important, but they also need to be checked and processed in time to ensure the reliability and stability of the vehicle.

[0082] S3: Analyze faults by level: When analyzing the core power supply faults, combine the priority situation established in step 2 above, diagnose and analyze the specific fault situation, and establish the specific cause of the fault.

[0083] For the core power failure analysis in step S3, first, detections are performed in sequence according to the priority judgment table established in step S2 from the highest to the lowest priority; when a certain item fails, the next detection will be carried out according to the order of this priority table until the specific cause of the failure is confirmed, including the following steps:

[0084] S301: First, detect the charger connection status of the core power supply and the internal communication status of the core power supply; when there is a problem with the charger connection status, turn off the charger; detect whether the fault source is caused by the charger; otherwise, execute step S302.

[0085] When it is detected that there is a problem with the charger connection status, turning off the charger first is a safe and effective preliminary measure. This can avoid more serious problems that may be caused by continued power-on when the fault is unknown, such as short circuits, fires, etc. By checking whether the power cord connection of the charger is firm, whether the power plug is damaged, whether the internal fuse is blown, and whether the control circuit is working properly, the fault source can be gradually investigated. For example, use a multimeter to measure the input and output voltages of the charger, check the working status of the control chip, and the operation of related components such as relays and contactors to determine whether the fault is caused by the charger itself.

[0086] S302: Detect the DC / DC working status of the core power supply. When the DC / DC module fails, check whether it is an independent fault or caused by too high or too low bus voltage; when the DC / DC module failure is an independent fault, further analyze the cause and execute step S303; when the DC / DC module failure is caused by too high or too low bus voltage, execute step S305.

[0087] When the DC / DC module fails, it is crucial to determine whether it is an independent fault or caused by abnormal bus voltage. Too high or too low bus voltage may be caused by battery pack failure, charging system failure, or abnormal operation of other high-voltage loads in the vehicle. For the investigation of independent faults, it is necessary to deeply check the internal circuit of the DC / DC module, including whether key components such as switching tubes, diodes, inductors, and capacitors are damaged, whether the control circuit is working properly, and whether the heat dissipation system is effective. For example, use an oscilloscope to observe whether the driving waveform of the switching tube is normal, check whether the inductor has a short circuit or open circuit, and measure whether the capacitance value of the capacitor has changed to determine the specific cause of the fault.

[0088] S303: Detect the status of the core power battery pack. When the pack temperature is abnormal, analyze whether it is caused by abnormal single-cell voltage, excessive single-cell temperature, or independent abnormality. When the single-cell voltage is abnormal, prioritize the diagnosis of abnormal single-cell voltage and execute step S304. When the fault is caused by abnormal battery pack temperature, perform the temperature fault diagnosis and execute step S309. When the fault is caused by independent abnormality, initiate the analysis of the specific cause of the fault.

[0089] S304: Detect the status of the core power single-cell voltage. When the voltage is abnormal, find out whether it is an independent abnormality or caused by excessive battery pack temperature. When the temperature is too high, perform the battery pack temperature abnormality diagnosis and execute step S306. When it is an independent abnormality, perform the analysis of the specific cause of the fault.

[0090] S305: Detect the working status of the high-voltage box. When the status of the high-voltage box is abnormal, analyze whether the status of the high-voltage box is caused by abnormal battery pack temperature or abnormal battery pack working status. When it is determined, perform the battery pack temperature abnormality diagnosis and the battery pack working abnormality diagnosis, and execute step S306 and step S307 respectively. When it is not, perform the overvoltage and overcurrent abnormality detection of the battery pack, analyze the overvoltage status of the battery pack, and execute step S308.

[0091] S306: Detect the battery pack temperature. When the pack temperature is abnormal, detect whether it is caused by abnormal battery pack working status. When it is determined to be the case, perform the battery pack working status abnormality detection and execute step S307. When the battery pack temperature abnormality is an independent abnormality, perform the analysis of the specific cause of the fault.

[0092] S307: Detect the battery pack working status. When the working status is abnormal, detect whether it is caused by abnormal battery pack temperature. When it is determined, perform the battery pack temperature abnormality detection and re-execute step S306. When the battery pack working status abnormality is an independent abnormality, perform the analysis of the specific cause of the fault.

[0093] S308: Detect the overvoltage or overcurrent of the battery pack. When the voltage or overcurrent is abnormal, find out whether it is an independent abnormality or caused by excessive bus voltage or overcurrent. When it is determined to be caused by excessive bus voltage or overcurrent, detect the battery pack temperature and the battery pack working status, and re-execute step S306 and step S307. When it is determined to be an independent abnormality, detect the core power temperature and execute step S309.

[0094] S309: When detecting the core power temperature is abnormal, find out whether it is an independent abnormality or caused by excessive bus voltage. When it is determined to be excessive voltage, turn off the DC / DC and the charger input. Otherwise, detect the bus voltage and the bus current.

[0095] When detecting the status of the battery pack, in the case of abnormal module temperature, further analyze its relationship with the voltage, temperature of individual cells, and other factors. If the abnormal voltage of an individual cell causes the module temperature to rise, it may be due to problems such as internal short circuit, overcharge, or over-discharge of the individual cell. It is necessary to conduct a detailed inspection and diagnosis of the individual cell, such as checking parameters such as its internal resistance and electrolyte concentration. When the abnormal temperature of the battery pack is caused by independent factors, such as a malfunction of the cooling system, too high ambient temperature, or failure of the thermal management system inside the battery pack, etc., it is necessary to check the working status of components such as the cooling fan, coolant circulation system, and temperature sensor to determine the specific cause of the failure.

[0096] For the fault diagnosis of aspects such as the high-voltage box, the working status of the battery pack, the monitoring of the total voltage and total current, and the temperature of the core power supply, etc., all follow the principle of starting from possible relevant factors and gradually troubleshooting. Through in-depth analysis of the electrical connections, signal transmissions, and interaction relationships between various components, combined with the actually measured electrical parameters and physical states, accurately determine the cause of the fault and take corresponding repair measures. For example, when detecting an abnormal status of the high-voltage box, if it is determined that it is caused by abnormal module temperature or working status of the battery pack, it is necessary to further check the charge and discharge management strategy of the battery pack, the thermal management system, as well as the connection lines and control signals between the high-voltage box and the battery pack to restore the normal working status of the high-voltage box.

[0097] S4: Reexamination after link break: Re-establish the data link and determine whether the data link can be re-established according to the cause of the fault.

[0098] The re-establishment of the data link in step S4 includes the following steps:

[0099] S401: When the temperature of the core power supply is too high and causes overvoltage of the bus, establish the data link according to step S1;

[0100] S402: When overvoltage or overcurrent of the bus causes DC / DC abnormality, detect the temperature of the core power supply, the core voltage, and the core current. When there are abnormalities in temperature, voltage, and current and it is judged as an independent abnormality, establish the data link according to step S1; when the temperature of the core power supply, the core voltage, and the core current are normal, first turn off the DC / DC, and then establish the data link according to step S1;

[0101] S403: When DC / DC abnormality and abnormal module temperature of the battery pack cause overvoltage of the bus, detect the module temperature of the battery pack and the working status of the battery pack. When the module temperature or the working status of the battery pack is abnormal, establish the data link according to step S1; when the module temperature or the working status of the battery pack is normal, detect the bus voltage, the temperature of the core power supply, the core voltage, the core current, and the overvoltage or overcurrent status of the battery pack; when there are abnormalities, establish the data link according to step S1; when the temperature, voltage, and current are all normal, first turn off the DC / DC and then establish the data link according to step S1;

[0102] S404: When the abnormal working state of the battery pack causes the abnormal temperature of the battery pack, detect the voltage of each battery cell, the temperature of the battery pack, and the temperature of each battery cell. When the temperature of the battery pack or the temperature of each battery cell is abnormal, establish a data link according to step S1; when the temperature of the battery pack and the voltage of each battery cell are normal, detect the core voltage and current. When the core voltage or current is abnormal, establish a data link according to step S1; when the core voltage and current are normal, detect the voltage of each battery cell and the temperature of the battery pack. If either of them is abnormal, establish a data link according to step S1. If both are normal, first turn off the DC / DC and then establish a data link according to step S1;

[0103] S405: When the DC / DC abnormality and the abnormal temperature of the battery pack are mutually causal, detect the core voltage, core current, and the voltage of each battery cell. If all three are normal, first turn off the DC / DC and then establish a data link according to step S1; if any one of the detections is abnormal, establish a data link according to step S1;

[0104] S406: When the abnormal temperature of the battery pack and the abnormal working state of the battery pack are mutually causal, detect the voltage of each battery cell, the temperature of the battery pack, and the temperature of each battery cell. When the temperature or voltage of each battery cell is abnormal, establish a data link according to step 1; when the temperature and voltage of each battery cell are normal, perform detections on the core voltage, bus voltage, and bus current. If there is an abnormality, establish a data link according to step S1; if the core voltage, bus voltage, and bus current are all normal, first turn off the DC / DC and then establish a data link according to step S1;

[0105] S407: When the core power supply temperature, core voltage, and core current are all normal, detect the temperature of the battery pack, bus voltage, and bus current. If there is an abnormality, establish a data link according to step S1; when the battery voltage and bus current are both normal, establish a data link according to step S1;

[0106] S408: When the abnormal temperature of the battery pack, the abnormal working state of the battery pack, overvoltage or overcurrent of the battery are all normal while the core power supply temperature is abnormal, detect the voltage of each battery cell and the temperature of each battery cell. If there is an abnormality, establish a data link according to step S1; when the temperature and voltage of each battery cell are normal, detect the core voltage, bus voltage, and bus current. If there is an abnormality, establish a data link according to step S1. When the temperature and voltage of each battery cell, core voltage, bus voltage, and bus current are all normal, first turn off the DC / DC and then establish a data link according to step S1;

[0107] S409: When the core power supply temperature, core voltage, and core current are all normal, detect the bus voltage, bus current, battery pack temperature, and battery pack working status. If there are any abnormalities, establish a data link according to step S1; if the bus voltage, bus current, battery pack temperature, and battery pack working status are all normal, establish a data link according to step S1.

[0108] In various fault situations, determining whether a data link can be re-established and in what way requires comprehensive consideration of the severity of the fault, its impact on the power supply system and communication system, and the system's self-recovery ability. For example, when the core power supply temperature is too high, causing overvoltage on the bus, first wait for the core power supply temperature to drop to the safe range, and at the same time check whether the bus voltage has returned to normal. If both the temperature and voltage have returned to the allowable conditions for data link establishment, re-establish the data link according to step S1. During this process, it may be necessary to calibrate the temperature sensor and voltage monitoring circuit to ensure the accuracy of the measurement data.

[0109] For the situation where overvoltage or overcurrent on the bus causes DC / DC anomalies, detecting parameters such as the temperature, voltage, and current of the core power supply can not only determine the severity of the fault but also provide a basis for subsequent fault repair and data link recovery. If there are independent anomalies, it indicates that other components inside the core power supply may be faulty and further troubleshooting and repair are required; if the core power supply temperature, voltage, and current are normal, first turn off the DC / DC module to avoid its impact on the bus voltage and current, then re-establish the data link according to step S1, and closely monitor the restart process of the DC / DC module to ensure its normal operation.

[0110] When dealing with interrelated fault situations such as DC / DC anomalies and battery pack temperature anomalies, it is necessary to comprehensively detect and analyze multiple parameters of the battery pack and core power supply. According to different parameter states, take corresponding measures, such as first adjusting the working state of the battery pack, repairing the cooling system, or replacing the faulty DC / DC module, and then try to re-establish the data link. Throughout the process, ensure that the establishment of the data link will not cause secondary damage to the already repaired faulty components, and at the same time ensure the stability and reliability of data transmission.

[0111] S5: Re-linkable: If the fault reason allows the data link to be re-established, then re-establish the data link; otherwise, go to step S6.

[0112] S6: Power-off Troubleshooting: Perform the power-off operation of the 5G electronic module and the core power supply shutdown process, and then enter step S7 for troubleshooting and then re-establish the data link between the core power supply and the 5G electronic module.

[0113] Perform the power-off operation of the 5G electronic module and the core power-off process in step S6, which specifically includes the following: When the processing operation after the core power failure analysis is completed, according to the cause of the failure, if there is an abnormality in the core power supply and it needs to be shut down, then perform the DC / DC shutdown, charger shutdown, and 5G electronic module shutdown in order of priority, and then perform the core power-off process.

[0114] When it is determined that the core power supply needs to be shut down, operate in the priority order of DC / DC shutdown, charger shutdown, and 5G electronic module shutdown, in order to ensure that during the power system shutdown process, each component can stop working safely and orderly, and avoid electrical shocks, data loss or other potential problems caused by sudden power outages. After the DC / DC module is shut down, it can prevent its output voltage from interfering with other electronic devices; shutting down the charger can avoid continuous charging during the power-off process, causing safety hazards such as overcharging; shutting down the 5G electronic module can reduce its energy consumption and electromagnetic interference during the power-off process, and at the same time protect the data and communication modules inside. When performing the core power-off process, it is also necessary to consider the power requirements of other systems of the vehicle, such as the braking system and the steering system, to ensure that the vehicle can still maintain a certain safety performance after the power is turned off, for example, providing short-term power support for critical safety systems through a backup power supply until the vehicle completely stops running.

[0115] S7: Fault chain restoration: After troubleshooting, re-establish the data link between the core power supply and the 5G electronic module.

[0116] After troubleshooting, when re-establishing the data link between the core power supply and the 5G electronic module, it is necessary to comprehensively check and test the parts of the data link that may have been affected by the previous failure. This includes checking whether the physical link connection is firm, whether the configuration of the wireless communication module is correct, whether the communication protocol is working properly, and the accuracy and stability of data transmission, etc. The recovery of the data link can be verified by sending test data packets and monitoring parameters such as the bit error rate and delay of the data link. At the same time, it is necessary to conduct collaborative testing with other electronic systems of the vehicle to ensure that the re-establishment of the data link will not have a negative impact on the entire vehicle's electronic architecture, and to ensure that various functions of the vehicle can operate normally, such as functions such as vehicle remote monitoring and intelligent driving assistance systems can perform normal data interaction with the cloud server or other vehicles through the restored data link.

[0117] The embodiments disclosed in the present invention are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes, but as long as they do not depart from the spirit of the present invention, they are within the protection scope of the present invention.

Claims

1. A method for collaborative control of a core power supply and a 5G communication module of a new energy vehicle, characterized in that: The steps include: S1: Start-up link establishment: The core power supply starts and establishes a data link at the same time. The core power supply module is connected to the 5G electronic module through a wired data link or a wireless data link; S2: Self-check priority judgment: The core power supply self-checks and establishes priority judgment at the same time, detects the health status of the core power supply and establishes a priority judgment table for the health status; S3: Fault analysis by level: When analyzing the core power supply fault, combine the priority situation established in step 2 above to diagnose and analyze the specific fault situation and establish the specific fault cause; S4: Link break review: The data link is re-established, and it is determined whether the data link can be re-established based on the cause of the failure; S5: If the fault cause allows the data link to be re-established, the data link is re-established; otherwise, the process goes to step S6; S6: Power off and troubleshoot: Power off the 5G electronic module and shut down the core power supply, then proceed to step S7 to troubleshoot and then restore the core power supply and establish the data link with the 5G electronic module; S7: Fault clearing and link recovery: After the fault is eliminated, the data link between the core power supply and the 5G electronic module is re-established.

2. According to claim 1, a method for collaboratively controlling a core power supply and a 5G communication module of a new energy vehicle is characterized in that: The data link establishment in step S1 is established by physical link establishment or wireless data link establishment.

3. A method for collaboratively controlling a core power supply and a 5G communication module of a new energy vehicle according to claim 2, characterized in that: The core power supply self-check in step S2 simultaneously establishes a priority judgment, including the following steps: S201: Check whether various parameters of the core power supply are normal; S202: Assigning a value to each of the above detection items whether it is normal, 0 represents normal, and 1 represents abnormal; S203: Sort the detection results of step S202 from high to low, and establish a core power health status priority table.

4. A method for collaboratively controlling a core power supply and a 5G communication module of a new energy vehicle according to claim 3, characterized in that: The various parameters in step S201 include: whether the charger is connected, whether the internal communication of the charger is normal, whether the DC / DC module is normal, whether the battery pack temperature is normal, whether the voltage of each single cell is normal, whether the single cell pressure difference is normal, whether the high-voltage box and the battery pack working status are normal, whether the total voltage and total current monitoring are normal, whether the core power supply temperature is normal, the CAN bus status, and the fault status.

5. A method for collaboratively controlling a core power supply and a 5G communication module of a new energy vehicle according to claim 3, characterized in that: The priorities in step S203 are: charger status, charger internal communication status, DC / DC module status, battery pack temperature status, each single cell voltage status, single cell pressure difference status, high voltage box, battery pack working status, total voltage and total current monitoring status, core power supply temperature, CAN bus status, and other fault conditions.

6. A method for collaboratively controlling a core power supply and a 5G communication module of a new energy vehicle according to claim 3, characterized in that: In step S201, the core power supply temperature is set to T, the bus voltage is set to V bus , the charge and discharge current of the battery pack is I battery , the ambient temperature is T env , and the heat dissipation coefficient of the core power supply is h, and the thermal resistance is R th ; First, according to the principle of heat conduction, the heat Q generated by the core power supply is related to the temperature difference, that is, the core power supply temperature minus the ambient temperature and the thermal resistance, which can be expressed as the following formula: At the same time, this heat will affect the internal resistance R of the battery pack. battery (T), based on the common model of battery characteristics, assuming that the relationship between internal resistance and temperature follows an exponential function form; Among them, R battery 0 is the internal resistance of the battery pack at the reference temperature T0, and k3 is a coefficient related to the battery material and characteristics.

7. A method for collaboratively controlling a core power supply and a 5G communication module of a new energy vehicle according to claim 6, characterized in that: The core power supply fault analysis in step S3 first performs detection in descending order of priority according to the priority judgment table established in step S2; when a certain item fails, the next step of detection is performed according to the priority table order until the specific cause of the fault is confirmed, including the following steps: S301: First, detect the charger connection state of the core power supply and the internal communication state of the core power supply; if there is a problem with the charger connection state, turn off the charger; detect whether the fault source is caused by the charger; Otherwise, execute step S302; S302: Detect the DC / DC working state of the core power supply. When the DC / DC module fails, check whether it is an independent fault or caused by the bus voltage being too high or too low. When the DC / DC module failure is an independent fault, further analyze the cause and execute step S303. When the DC / DC module failure is caused by the bus voltage being too high or too low, execute step S305. S303: Detect the core power battery pack status. When the pack temperature is abnormal, analyze whether it is caused by abnormal single cell voltage, excessive temperature of the battery cell, or independent abnormality. When the single cell voltage is abnormal, give priority to single cell voltage abnormality diagnosis and execute step S304. When the fault is caused by abnormal battery pack temperature, perform temperature fault diagnosis and execute step S309. When the fault is caused by independent abnormality, start specific fault cause analysis. S304: Detect the voltage status of the core power source monomer. If the voltage is abnormal, find out whether it is an independent abnormality or caused by the battery pack temperature being too high. If the temperature is too high, perform abnormal battery pack temperature diagnosis and execute step S306. If it is an independent abnormality, perform specific fault cause analysis. S305: Detect the working state of the high-voltage box. When the state of the high-voltage box is abnormal, analyze whether the state of the high-voltage box is caused by abnormal battery pack temperature or abnormal battery pack working state. If confirmed, perform battery pack temperature abnormality diagnosis and battery pack working abnormality diagnosis, and execute step S306 and step S307 respectively; if not, perform battery pack overvoltage and overcurrent abnormality detection, analyze the battery pack overvoltage state, and execute step S308; S306: Detect the battery pack temperature. If the battery pack temperature is abnormal, detect whether it is caused by the abnormal working state of the battery pack. If it is determined to be, perform abnormal working state detection of the battery pack and execute step S307. If the battery pack temperature is abnormal, perform specific fault cause analysis. S307: Detect the working state of the battery pack. If the working state is abnormal, detect whether it is caused by abnormal battery pack temperature. If it is determined, perform abnormal battery pack temperature detection and re-execute step S306. If the abnormal working state of the battery pack is an independent abnormality, perform specific fault cause analysis. S308: Detect overvoltage or overcurrent of the battery pack. When the voltage or overcurrent is abnormal, find out whether it is an independent abnormality or caused by excessive bus voltage or overcurrent. When it is determined that the bus voltage is too high or the overcurrent is caused, detect the battery pack temperature and the battery pack working state, and re-execute steps S306 and S307; when it is determined that it is an independent abnormality, detect the core power supply temperature, and execute step S309; S309: When detecting abnormal core power supply temperature, check whether it is an independent abnormality or caused by excessive bus voltage. When it is determined that the voltage is too high, shut down the DC / DC and charger input, otherwise detect the bus voltage and bus current.

8. A method for collaboratively controlling a core power supply and a 5G communication module of a new energy vehicle according to claim 7, characterized in that: The data link re-establishment in step S4 comprises the following steps: S401: When the core power supply temperature is too high and causes bus overvoltage, a data link is established according to step S1; S402: When the DC / DC is abnormal due to bus overvoltage or overcurrent, the core power temperature, core voltage, and core current are detected. If the temperature, voltage, and current are abnormal, it is determined to be an independent abnormality, and a data link is established according to step S1; if the core power temperature, core voltage, and core current are normal, the DC / DC is turned off first, and then the data link is established according to step S1; S403: When the DC / DC is abnormal and the battery pack temperature is abnormal, causing the bus overvoltage, the battery pack temperature and the battery pack working state are detected. When the battery pack temperature or working state is abnormal, a data link is established according to step S1; when the battery pack temperature or working state is normal, the bus voltage, core power supply temperature, core voltage, core current, battery pack overvoltage or overcurrent state are detected; when there is an abnormality, a data link is established according to step S1; when the temperature, voltage and current are normal, the DC / DC is turned off first and then the data link is established according to step S1; S404: When the battery pack working state is abnormal and causes the battery pack temperature to be abnormal, the battery cell voltage, battery pack temperature and battery cell temperature are detected. When the battery pack temperature or battery cell temperature is abnormal, a data link is established according to step S1; when the battery pack temperature and battery cell voltage are normal, the core voltage and current are detected. When the core voltage or current is abnormal, a data link is established according to step S1; when the core voltage and current are normal, the battery cell voltage and battery pack temperature are detected. When one of the two is abnormal, a data link is established according to step S1. When both are normal, the DC / DC is turned off first, and then the data link is established according to step S1; S405: When the DC / DC abnormality and the battery pack temperature abnormality are mutually related, detect the core voltage, core current, and battery cell voltage. If all three are normal, turn off the DC / DC first, and then follow the data link in step S1; if any of the detection items is abnormal, establish the data link in step S1; S406: When the battery pack temperature abnormality and the battery pack operation abnormality are mutually related, the battery cell voltage, battery pack temperature and battery cell temperature are detected. When the battery cell temperature or voltage is abnormal, a data link is established according to step 1; when the battery cell temperature and battery cell voltage are normal, the core voltage, bus voltage and bus current are detected. When an abnormality exists, a data link is established according to step S1; if the core voltage, bus voltage and bus current are normal, the DC / DC is turned off first, and then the data link is established according to step S1; S407: When the core power supply temperature, core voltage, and core current are all normal, the battery pack temperature, bus voltage, and bus current are detected. If there is an abnormality, a data link is established according to step S1; when the battery voltage and bus current are both normal, a data link is established according to step S1; S408: When the battery pack temperature is abnormal, the battery pack operation is abnormal, the battery overvoltage or overcurrent is normal, but the core power supply temperature is abnormal, the battery cell voltage and battery cell temperature are detected, and if there is an abnormality, the data link is established according to step S1; when the battery cell temperature and battery cell voltage are normal, the core voltage, bus voltage, and bus current are detected, and if there is an abnormality, the data link is established according to step S1; when the battery cell temperature, battery cell voltage, core voltage, bus voltage, and bus current are normal, the DC / DC is first turned off and then the data link is established according to step S1; S409: When the core power supply temperature, core voltage, and core current are all normal, detect the bus voltage, bus current, battery pack temperature, and battery pack working status. If there is an abnormality, establish a data link according to step S1; when the bus voltage, bus current, battery pack temperature, and battery pack working status are all normal, establish a data link according to step S1.

9. A method for collaboratively controlling a core power supply and a 5G communication module of a new energy vehicle according to claim 8, characterized in that: The 5G electronic module power-off operation and core power shutdown processing in step S6 specifically include the following: when the processing operation after the core power fault analysis is completed, according to the cause of the fault, if the core power is abnormal and needs to be shut down, the DC / DC is shut down, the charger is shut down, and the 5G electronic module is turned off according to priority, and then the core power shutdown processing is performed.

Images