A method for detecting external load of an automobile emergency starting power supply

Abstract

The application discloses a kind of automobile emergency starting power supply external load detection method, it is related to automobile emergency starting technical field, in S2 step, after closing output circuit, system monitors dynamic current and load state change, extracts relevant transmission data and calculates abnormal coefficient, once abnormal coefficient exceeds preset abnormal threshold, system will promptly issue stop starting instruction, further avoid to cause excessive loss to battery or starting power supply, effectively guarantee the safety of equipment and vehicle.S3 and S4 step utilize change coefficient and abnormal coefficient to build starting result identification model, with the aid of deep learning technology, after linear normalization processing of data, fitting out determination index is determined.By comparing determination index Pdzs and qualified threshold, system can intelligently judge whether starting is successful, automatically control power output, avoid excessive output current, prolong the life of equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile emergency starting, in particular to a method for detecting external load of automobile emergency starting power supply. BACKGROUND

[0002] With the increasing complexity of automobile electrical systems, the importance of emergency starting power supply in the case of vehicle battery depletion, low temperature and other situations is increasingly prominent. In order to realize stable and safe starting, the core of emergency starting power supply is to detect the state and connection of external load (i.e. vehicle battery) and intelligently identify whether the battery is suitable and can be safely started. Therefore, the research on the detection of external load of automobile emergency starting power supply has gradually become a key technical requirement for improving the safety and intelligence of equipment in the industry.

[0003] The above status and deficiency mainly come from the singleness of detection means and the lack of self-adaptive adjustment ability of starting power supply. In actual application, the state of vehicle battery is greatly different. If the detection system cannot accurately identify the load condition or the starting state of the vehicle, it is easy to cause the system to start multiple times in a short time, causing excessive wear of the battery and the starting power supply. When this happens, in addition to the intensification of equipment wear, it may also cause the starting power supply to overheat, and even the risk of excessive discharge of the battery, which seriously affects the service life and safety of the equipment and vehicle. Therefore, improving the accuracy and intelligence level of the external load detection of emergency starting power supply has become a problem to be solved. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a method for detecting external load of automobile emergency starting power supply, which solves the problems in the background art.

[0005] To achieve the above purpose, the present application is realized by the following technical scheme: a method for detecting external load of automobile emergency starting power supply, comprising the following steps,

[0006] S1, when the emergency starting power supply is started, disconnect the output circuit and detect the voltage Ddy of the power-on clamp to identify the connection state and load type of the power-on clamp, and based on the connection state and load type of the power-on clamp, determine whether to allow closing the output circuit;

[0007] S2, based on the constraint of closing the output circuit in S1, if the output circuit is allowed to be closed, the vehicle battery enters the starting stage, and real-time monitoring and load state change detection of dynamic current are carried out to obtain relevant transmission data information, and based on the relevant transmission data information, an abnormal coefficient Ycxs is constructed, and if the abnormal coefficient Ycxs exceeds a preset abnormal threshold K, a stop starting instruction is issued;

[0008] S3, based on the value of the abnormal coefficient Ycxs, continue to analyze the symbolic content of the successful start to analyze and obtain the change coefficient Bhxs;

[0009] S4, using deep learning technology to build a start result recognition model, input the change coefficient Bhxs and the abnormal coefficient Ycxs into the start result recognition model, and after linear normalization processing, fit to build the determination index Pdzs;

[0010] S5, pre-set qualified threshold Q, and compare and analyze it with the determination index Pdzs, to judge whether the current emergency starting power supply successfully starts the vehicle engine.

[0011] Preferably, S1 specific steps include:

[0012] S11, when the emergency starting power supply is turned on, disconnect the output circuit between the battery of the emergency starting power supply and the positive electrode of the clamping clamp, and disable the small current test charging circuit and the large current test charging circuit;

[0013] S12, by continuously detecting the clamping clamp voltage Ddy between the positive and negative electrodes of the clamping clamp, the current clamping clamp connection state and load type are preliminarily identified and judged; wherein, if the value of the clamping clamp voltage Ddy is in , it is judged that the clamping clamp is connected to the 12V battery of the vehicle, at which time the 12V load indicator is lit to prompt the user; if the value of the clamping clamp voltage Ddy is in , it is judged that the clamping clamp is connected to the 24V battery of the vehicle, at which time the 24V load indicator is lit to prompt the user; if the value of the clamping clamp voltage Ddy is above 30V, it is judged that the clamping clamp is connected to the overvoltage load, at which time the buzzer is triggered to prompt the user; if the value of the clamping clamp voltage Ddy is in , it is judged that the external load connected by the clamping clamp has multiple judgment results, wherein the multiple judgment results include no connection, short circuit and capacitive load.

[0014] Preferably, S1 specific steps further include:

[0015] S13, when it is judged that the external load connected by the clamping clamp has multiple judgment results, use the small current test charging circuit to send current to the vehicle battery to detect the voltage state of the clamping clamp, the specific content is as follows:

[0016] S131, if the clamping clamp voltage Ddy is equal to the battery voltage of the emergency starting power supply, it is judged that the clamping clamp is not connected to the vehicle battery;

[0017] S132, if the value of the clamping clamp voltage Ddy is still in , it is judged that the clamping clamp connection is short circuit or capacitive load.

[0018] Preferably, the S1 specific steps further comprise:

[0019] S14, based on the judgment result in S13, when it is detected that the value of the voltage Ddy of the clamping clip is still in the range of , the large current test charging circuit is used to send current to the vehicle battery, and the voltage state of the clamping clip is detected continuously at intervals of 10 milliseconds, and the specific content is as follows:

[0020] S141, if the value of the voltage Ddy of the clamping clip is still in the range of , it is judged that the clamping clip connection is short-circuit, at this time the buzzer is triggered to prompt the user;

[0021] S142, if the voltage Ddy of the clamping clip continues to rise, it is judged that the clamping clip connection is a capacitive load;

[0022] S15, based on the judgment result of S12 that the clamping clip connection is an overvoltage load and the judgment result of S141, different frequencies of the buzzer are triggered to prompt the user of the current clamping clip connection state and load type of the vehicle, and the system will not allow the output circuit to be closed, and the output circuit closing instruction between the battery in the emergency starting power supply and the positive clamping clip will not be executed;

[0023] S16, based on the judgment results of S131 and S142, the system will not allow the output circuit to be closed, and the output circuit closing instruction between the battery in the emergency starting power supply and the positive clamping clip will not be executed.

[0024] Preferably, the S2 specific steps comprise:

[0025] S21, based on the constraint of closing the output circuit in S1, if the clamping clip is correctly connected to the positive and negative poles of the vehicle battery, no short circuit occurs, and the voltage of the vehicle battery matches the voltage of the emergency starting power supply, at this time the output circuit will be allowed to be closed, and the vehicle battery enters the starting stage;

[0026] S22, during the starting process, real-time dynamic current monitoring and load state change detection are performed to obtain related transmission data information, wherein the related transmission data information includes the voltage difference of the vehicle battery before and after starting , the difference of the output current of the emergency starting power supply before and after starting , the clamping clip voltage measured in the corresponding monitoring period

[0027] , and the output current value I of the emergency starting power supply to the vehicle battery in the corresponding monitoring period;

[0027] S23, based on the related transmission data information, the health status of the vehicle battery is analyzed, and after linear normalization processing, an abnormal coefficient Ycxs is constructed, the abnormal coefficient Ycxs is obtained through the following formula:

[0028]

[0029] In the formula, is expressed as an equivalent internal resistance, is expressed as a load fluctuation variance, and are weight values, is expressed as a first correction constant, wherein, and The specific values are set by the user according to the situation.

[0030] Preferably, the S2 specific steps further include:

[0031] S24, the equivalent internal resistance is obtained by the following formula:

[0032]

[0033] In the formula, is expressed as the voltage difference in the vehicle battery before and after starting; is expressed as the difference in output current of the emergency starting power supply before and after starting;

[0034] S25, the load fluctuation variance is obtained by the following formula:

[0035]

[0036] In the formula, N represents the monitoring period, n = 1, 2, 3,..., N, is expressed as the measured voltage of the jump clamp in the nth monitoring period, is expressed as the average jump clamp voltage, is expressed as the output current value of the emergency starting power supply to the vehicle battery in the nth monitoring period, is expressed as the average output current value;

[0037] S26, by comparing the abnormality coefficient Ycxs with the preset abnormality threshold K, to judge the stability of the vehicle battery in the current starting process:

[0038] If the abnormality coefficient Ycxs exceeds the preset abnormality threshold K, it is judged that the vehicle battery is not in a stable state during the current starting process, at which time a stop starting instruction will be issued;

[0039] If the abnormality coefficient Ycxs does not exceed the preset abnormality threshold K, it is judged that the vehicle battery is temporarily in a stable state during the current starting process, at which time no stop starting instruction will be issued.

[0040] Preferably, the S3 specific steps include:

[0041] S31, when no stop starting instruction is received, continue to analyze the symbolic content of the successful start, according to the change of the emergency starting power output current and the vehicle battery voltage, calculate the change coefficient Bhxs, the change coefficient Bhxs is obtained by the following formula:

[0042]

[0043] In the formula, is the battery voltage speed, is the output current speed, and are weight values, wherein, and The specific value is set by the user according to the situation.

[0044] Preferably, S3 further includes:

[0045] S32, the battery voltage speed is obtained by the following formula:

[0046] S33, the output current speed is obtained by the following formula: Wherein, represents the time interval of the starting process.

[0047] Preferably, S4 includes:

[0048] S41, the starting result recognition model constructed based on deep learning technology, input the change coefficient Bhxs and the abnormal coefficient Ycxs into the starting result recognition model, and after linear normalization processing, the fitting and construction of the determination index Pdzs:

[0049]

[0050] In the formula, and are weight values, is the second correction coefficient.

[0051] Preferably, S5 includes:

[0052] S51, by comparing and analyzing the determination index Pdzs with the qualified threshold Q, to judge whether the current emergency starting power makes the vehicle engine start successfully, the specific content is as follows:

[0053] If the determination index Pdzs exceeds the qualified threshold Q, it is judged that the current emergency starting power supply successfully starts the vehicle engine, at which time the emergency starting power supply will immediately stop outputting current and automatically disconnect the circuit connection between the internal battery of the emergency starting power supply and the clamping clamp.

[0054] If the determination index Pdzs does not exceed the qualified threshold Q, it is judged that the current emergency starting power supply does not successfully start the vehicle engine, at which time the output of the starting current will be continuously maintained to attempt to support the starting of the vehicle engine again, and it is judged whether the starting is successful, if the detection is not successful for multiple times, the system will stop outputting current and alarm.

[0055] The present application provides a kind of external load detection of automobile emergency starting power supply method, with following beneficial effects:

[0056] (1) the method in S1 step, by detecting the voltage of clamping clamp to identify connection state and load type, only in the case where confirming that connection is safe and load voltage is adapted, allow closing output circuit, this effectively avoids the risk caused by improper connection (such as short circuit, reverse connection or overvoltage load), improves the security of system.In S2 step, after closing output circuit, the system monitors dynamic current and load state change, extracts relevant transmission data and calculates abnormality coefficient, once abnormality coefficient exceeds preset abnormal threshold, system will promptly issue stop starting instruction, further avoid excessive wear and tear to battery or starting power supply, effectively guarantee the safety of equipment and vehicle.S3 and S4 step utilize change coefficient and abnormality coefficient to build starting result identification model, by means of deep learning technology, data is linearly normalized and fitted to determine index.By comparing determination index Pdzs and qualified threshold, system can intelligently judge whether starting is successful, automatically control power output, avoid excessive output current, prolong the service life of equipment.In short, the method realizes intelligent monitoring and judgment to starting state through multilevel data detection and intelligent analysis, ensures the safety, reliability and service life of equipment, improves the intelligent level of automobile emergency starting power supply.

[0057] (2) By disconnecting the output circuit between the internal battery and the positive electrode of the clamping connector when the emergency starting power supply is turned on, and disabling the small current and large current test charging circuits, the system can avoid high current output before confirming the connection state, improving the safety of the equipment and the user. By continuously detecting the voltage between the positive and negative electrodes of the clamping connector, the system can accurately determine the connection state of the clamping connector and the load type. When the voltage of the preset 12V or 24V battery is within the voltage range, the system will light up the corresponding 12V or 24V indicator, respectively, to intuitively prompt the user about the load type, avoiding misoperation caused by voltage mismatch. In addition, when the clamping connector voltage Ddy falls within the range of 0~1V, the system will determine the possible load state, such as no connection, short circuit or capacitive load, and further determine the detection process, which allows the system to confirm the safety and adaptability of the connection before high current output, effectively protecting the emergency starting power supply and vehicle battery, and avoiding risks caused by misoperation.

[0058] (3) When detecting that the external load connected by the clamping connector is in an ambiguous state, the system first uses the small current test charging circuit for further identification. If the clamping connector voltage is equal to the battery voltage of the starting power supply, it is determined that the vehicle battery is not connected, ensuring the accuracy of misconnection identification. When the clamping connector voltage remains in a low range, the system will determine that it may be a short circuit or capacitive load, at which point the large current test charging circuit is triggered, and the system further determines by continuously monitoring the voltage at intervals of 10 milliseconds: if the voltage remains unchanged, it is identified as a short circuit and the buzzer alarm is triggered; if the voltage continues to rise, it is identified as a capacitive load, ensuring accurate identification of the load type. Based on this, the system will trigger the buzzer alarm for different abnormal conditions, and will not allow the internal battery of the starting power supply to close the high current output circuit with the positive clamping connector, ensuring that high current will not be output to the vehicle battery when there is an incompatible load, thereby preventing damage to the equipment and the vehicle battery. Different frequencies of buzzer prompts make users more clearly understand the current connection state and load type, further improving the intelligence and safety of the equipment. In addition, by reasonably applying small current and large current test charging detection, the system can effectively identify potential misconnections and unsafe states before starting, avoiding equipment damage or safety risks caused by misoperation, and improving the durability of the equipment and the user experience.

[0059] (4) During the starting process, the system performs dynamic current monitoring and load state change detection, and real-time acquires transmission data including the voltage difference of the vehicle battery before and after starting, the current difference before and after starting, and the clamping connector voltage and output current during the starting period. These data are used to further analyze the health status of the vehicle battery, and an abnormality coefficient is constructed through linear normalization processing to evaluate the stability of the battery during the starting process.

[0060] (5) In the specific operation, the battery voltage speed-up reflects whether the generator has normally started to charge the battery, and the output current speed-down indicates whether the emergency starting power supply no longer needs high current support, so as to determine whether the engine has been successfully started. By constructing this change coefficient, the system can automatically stop the current output after confirming the successful starting, so as to protect the battery and the emergency starting power supply and avoid excessive consumption caused by prolonged starting. BRIEF DESCRIPTION OF DRAWINGS

[0061] Figure 1 FIG. 1 is a flowchart of a method for detecting an external load of an automobile emergency starting power supply according to an embodiment of the present application. DETAILED DESCRIPTION

[0062] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0063] Embodiment 1, please refer to Figure 1 The present application provides a method for detecting an external load of an automobile emergency starting power supply, comprising the following steps,

[0064] S1, after the emergency starting power supply is turned on, the output circuit is disconnected and the voltage of the jump starter Ddy is detected to identify the connection state of the jump starter and the load type, and based on the connection state of the jump starter and the load type, it is judged whether the output circuit is allowed to be closed, so that after confirming the connection safety and the load adaptation, the dynamic current monitoring link is entered, so as to prevent the risk caused by improper connection;

[0065] S2, based on the constraint of closing the output circuit in S1, if the output circuit is allowed to be closed, the vehicle battery enters the starting stage, and the dynamic current monitoring and load state change detection are performed in real time to obtain relevant transmission data information, and based on the relevant transmission data information, an abnormality coefficient Ycxs is constructed, and if the abnormality coefficient Ycxs exceeds a preset abnormality threshold K, a stop starting instruction is issued;

[0066] S3, based on the value of the abnormality coefficient Ycxs, the symbolic content of the successful starting is continuously analyzed to obtain a change coefficient Bhxs;

[0067] S4, a starting result recognition model is constructed by using deep learning technology, the change coefficient Bhxs and the abnormality coefficient Ycxs are input into the starting result recognition model, and after linear normalization processing, a judgment index Pdzs is fitted and constructed;

[0068] S5, a qualified threshold Q is set in advance and compared with the determination index Pdzs to determine whether the current emergency starting power supply successfully starts the vehicle engine.

[0069] In this embodiment, by disconnecting the output circuit in step S1 and detecting the voltage of the jump clamp, the system can accurately identify the connection state of the jump clamp and the load type. This preliminary judgment effectively prevents risks caused by short circuits, reverse connections, or load mismatches, ensuring that the output circuit can only be closed in a safe state, further avoiding damage to the equipment and vehicle. Step S2 introduces dynamic current monitoring and load state change detection, allowing the system to obtain real-time current and load change information during the starting process. By calculating the abnormality coefficient, the system ensures that the vehicle can issue a stop-start instruction in abnormal conditions, thereby avoiding starting failure or excessive consumption of the vehicle battery due to unstable conditions. Step S4 builds a starting result recognition model through deep learning, considering the change coefficient and abnormality coefficient, and constructing a determination index after linear normalization. This intelligent analysis method can more accurately identify the starting result and avoid misjudgment. In step S5, the determination index Pdzs is compared with the qualified threshold to determine whether the starting is successful. When the determination index Pdzs exceeds the threshold, the system immediately stops outputting current, protecting the service life of the power supply and battery. Through this method, the accuracy and intelligence level of external load detection for automobile emergency starting power supply are effectively improved, further reducing the risk of misoperation, prolonging the service life of the equipment, and ensuring the safety and stability of the starting process.

[0070] Embodiment 2, please refer to Figure 1 , specifically: S1 specific steps include:

[0071] S11, when the emergency starting power supply is turned on, disconnect the output circuit between the battery of the emergency starting power supply and the positive jump clamp, and disable the small current test charging circuit and the large current test charging circuit;

[0072] The output circuit between the battery of the emergency starting power supply and the positive jump clamp is disconnected, which means that the circuit between the internal battery of the emergency starting power supply and the positive jump clamp (i.e. the clamp for connecting the positive pole of the vehicle battery) is not connected. That is, the emergency starting power supply will not output current to the positive jump clamp, so there will be no current flowing from the clamp to the vehicle battery. This is to prevent accidental output of current without detection and preparation, which may cause short circuits or discharges.

[0073] S12, by continuously detecting the jump clamp voltage Ddy between the positive and negative poles of the jump clamp, the current connection state and load type of the jump clamp are preliminarily identified and determined. If the value of the jump clamp voltage Ddy is If the voltage Ddy is between 12V and 24V, then the system determines that the clamping connector is connected to a 12V battery of the vehicle, and the 12V load indicator is lit to prompt the user; if the voltage Ddy is above 30V, then the system determines that the clamping connector is connected to an overvoltage load, and the buzzer is triggered to prompt the user; if the voltage Ddy is between 24V and 30V, then the system determines that the clamping connector is connected to a 24V battery of the vehicle, and the 24V load indicator is lit to prompt the user. If the voltage Ddy is between 12V and 24V, then the system determines that the clamping connector is connected to a 12V battery of the vehicle, and the 12V load indicator is lit to prompt the user; if the voltage Ddy is above 30V, then the system determines that the clamping connector is connected to an overvoltage load, and the buzzer is triggered to prompt the user; if the voltage Ddy is between 24V and 30V, then the system determines that the clamping connector is connected to a 24V battery of the vehicle, and the 24V load indicator is lit to prompt the user.

[0074] Small current test charging circuit failure: The failure of the small current test charging circuit means that the circuit is not activated at this time. The function of the small current test charging circuit is to detect the state of the battery by sending a small amount of current to it, such as determining whether the battery can accept charging, whether the voltage matches, etc. When the small current test charging circuit is in a failure state, this detection function does not work, thereby preventing any current from being transmitted to the battery without safety checks.

[0075] Large current test charging circuit failure: The failure of the large current test charging circuit means that the emergency starting power supply will not immediately output high current to the battery. The large current test charging circuit is usually used to provide the large current required for starting to the battery when the state of the battery is confirmed to be normal. However, before starting, it is necessary to ensure the state of the battery and the voltage match, so the circuit is temporarily disabled to prevent accidental output of high current.

[0076] By continuously detecting the voltage between the positive and negative poles of the clamping connector, the system can automatically determine whether it has been connected to the vehicle battery, as well as the type of battery or load state connected. This step of detection helps the system not to close the circuit of the starting power supply battery and the clamping connector until it confirms that the connection is correct and safe.

[0077] ​In this embodiment, by continuously detecting the voltage and comparing it with the preset voltage interval, the system can quickly and accurately determine whether the jump clamp is correctly connected to the appropriate load (such as 12V or 24V battery), ensuring that the load type matches the output voltage of the emergency starting power supply, thereby avoiding risks caused by improper connection. Automatically identify and prompt abnormal state: When detecting abnormal voltage (such as overvoltage load, short circuit or capacitive load), the system prompts the user through the buzzer or indicator light, allowing the user to identify and handle potential dangerous connections in a timely manner, avoiding damage to the device or vehicle battery caused by incorrect connection. Ensure the safety of the starting process: Before confirming the connection status of the jump clamp and the load type, the system will always disconnect the output circuit between the emergency starting power supply battery and the jump clamp, and will not allow the starting power supply to output high current. This design can effectively prevent safety accidents caused by misoperation and protect the safety of the emergency starting power supply, vehicle battery and users. User-friendly prompt function: The system is designed with 12V and 24V load indicator lights and buzzer alarms, allowing users to clearly understand the current load status through intuitive indicator lights and buzzer prompts, making operation more convenient and avoiding repeated attempts and device wear caused by mismatched loads. In summary, this method realizes automatic connection state recognition and load type judgment by continuously monitoring the voltage of the jump clamp, not only improving the intelligence of the device, but also further improving the safety and user experience of the device, protecting the normal operation of the emergency starting power supply and vehicle battery.

[0078] Embodiment 3, please refer to Figure 1 , Specifically: S1 specific steps also include:

[0079] S13, when there are multiple judgment results for the external load connected by the jump clamp, use a small current test charging circuit to send current to the vehicle battery to detect the voltage state of the jump clamp, the specific content is as follows:

[0080] S131, if the jump clamp voltage Ddy is equal to the battery voltage of the emergency starting power supply, it is judged that the jump clamp is not connected to the vehicle battery;

[0081] S132, if the value of the jump clamp voltage Ddy is still in , it is judged that the jump clamp connection is short circuit or capacitive load.

[0082] S1 specific steps also include:

[0083] S14, based on the judgment result in S13, when the value of the jump clamp voltage Ddy is still in , use a large current test charging circuit to send current to the vehicle battery and continuously detect the voltage state of the jump clamp at intervals of 10 milliseconds, the specific content is as follows:

[0084] S141, if the value of the jump clamp voltage Ddy is still in If the voltage of the jumper clamp Ddy continues to rise, it is determined that the jumper clamp is connected to a capacitive load.

[0085] S142, if the voltage of the jumper clamp Ddy continues to rise, it is determined that the jumper clamp is connected to a capacitive load.

[0086] S15, based on the judgment result of S12 that the jumper clamp is connected to an overvoltage load and the judgment result of S141, different frequencies of the buzzer are triggered to prompt the user of the current jumper clamp connection state and load type of the vehicle, and the system will not allow the output circuit to be closed, and will not execute the output circuit closing instruction between the internal battery and the positive jumper clamp of the emergency starting power supply, that is, the emergency starting power supply will disable the current output circuit between the internal battery and the positive jumper clamp, that is, it will not turn on the high current output, which means that even if the device is in the power-on state, it will not provide current to the vehicle battery;

[0087] S16, based on the judgment results of S131 and S142, the system will not allow the output circuit to be closed, and will not execute the output circuit closing instruction between the internal battery and the positive jumper clamp of the emergency starting power supply.

[0088] In this embodiment, the method gradually detects the connection state and load type of the jumper clamp to ensure that the emergency starting power supply will not provide high current output to the vehicle battery until the connection is correct and safe, thereby significantly improving the safety of the device and the user. When powered on, the voltage state of the jumper clamp is judged by the small current test charging circuit, and when the voltage of the jumper clamp is equal to the voltage of the battery of the starting power supply, the system confirms that the jumper clamp is not connected to the vehicle battery, effectively avoiding misoperation. When the voltage of the jumper clamp falls within a certain range, the large current test charging circuit is used to further judge its connection state: if the voltage continues to rise, the system determines that it is a capacitive load, ensuring correct connection; if the voltage remains in a low range, the system determines that it is a short circuit and immediately triggers the buzzer to alarm, prompting the user to check the connection and avoiding safety risks caused by short circuits. Based on the detection results, the system will trigger the buzzer to prompt after identifying overvoltage load, short circuit, no connection, and capacitive load, and will distinguish them by different frequencies, so that the user can clearly understand the current jumper clamp connection state and load type. The specific identification and alarm function of overvoltage load, short circuit and capacitive load ensures that the emergency starting power supply will only close the high current output circuit when it is confirmed that the connection is safe and the load is adapted, protecting the vehicle battery and the starting power supply, avoiding safety hazards caused by misoperation, and improving the intelligence and use experience of the device.

[0089] Embodiment 4, please refer to Figure 1 , in particular: S2 specific steps include:

[0090] S21, based on the constraints on the closed output circuit in S1, if the jump starter is correctly connected to the positive and negative terminals of the vehicle battery, no short circuit occurs, and the voltage of the vehicle battery matches that of the emergency starting power supply (for example, 12V power supply with 12V battery), the output circuit will be closed, and the vehicle battery will enter the starting stage;

[0091] S22, during the starting process, real-time dynamic current monitoring and load state change detection are performed to obtain relevant transmission data information, wherein the relevant transmission data information includes the voltage difference in the vehicle battery before and after starting the difference in the output current of the emergency starting power supply before and after starting the measured voltage of the jump starter in the corresponding monitoring period and the output current value I provided by the emergency starting power supply to the vehicle battery in the corresponding monitoring period;

[0092]

[0093]

[0094] wherein, represents the equivalent internal resistance, represents the load fluctuation variance, and are weight values, represents the first correction coefficient, wherein, and The specific values are set by the user according to the situation.

[0095] S2 also includes the following specific steps:

[0096] S24, the equivalent internal resistance is obtained by the following formula:

[0097]

[0098] wherein, represents the voltage difference in the vehicle battery before and after starting; represents the difference in the output current of the emergency starting power supply before and after starting;

[0099] S25, the load fluctuation variance is obtained by the following formula:

[0100]

[0101] wherein, N represents the monitoring period, n=1, 2, 3,..., N, represents the voltage measured on the jump clamp after connecting the vehicle battery, in the nth monitoring period, represents the average jump clamp voltage, represents the output current value provided by the emergency starting power supply to the vehicle battery in the nth monitoring period, represents the average output current value;

[0102] The above-mentioned current can be monitored and obtained by a current sensor, and the voltage can be monitored and obtained by a voltage sensor;

[0103] S26, by comparing the abnormal coefficient Ycxs with the preset abnormal threshold K, to judge the stability of the vehicle battery in the current starting process:

[0104] If the abnormal coefficient Ycxs exceeds the preset abnormal threshold K, it is judged that the vehicle battery is not in a stable state in the current starting process, at which time a stop starting instruction will be issued;

[0105] If the abnormal coefficient Ycxs does not exceed the preset abnormal threshold K, it is judged that the vehicle battery is temporarily in a stable state in the current starting process, at which time the stop starting instruction will not be issued.

[0106] In this embodiment, through step-by-step detection and dynamic monitoring, the system can accurately judge the connection state of the jump clamp and the load matching. When it is confirmed that the jump clamp is correctly connected to the vehicle battery and the voltage is matched, the output circuit is allowed to be closed to enter the starting stage. During the starting process, by monitoring the current and voltage changes in real time, key transmission data are obtained, including the vehicle battery voltage difference, the emergency starting power supply current difference, and the jump clamp voltage and output current value, so as to more comprehensively evaluate the health status of the vehicle battery. By linearly normalizing these data, the system constructs an abnormal coefficient, and uses the equivalent internal resistance and load fluctuation variance calculation formula to obtain the state change characteristics of the battery under high current load. The abnormal coefficient quantifies the stability of the vehicle battery, and compares it with the preset abnormal threshold, which helps the system to quickly judge the load adaptability of the battery. If it exceeds the threshold, the system immediately issues a stop starting instruction to protect the battery from excessive load; if it is within the safe range, the system allows the starting process to continue, which not only improves the intelligent level of the emergency starting power supply, but also effectively prolongs the service life of the vehicle battery and the starting power supply. Through dynamic monitoring, precise control and load management of the starting process are realized, which significantly improves the safety and reliability of the equipment.

[0107] Embodiment 5, please refer to Figure 1 , in particular: S3 specific steps include:

[0108] S31, when not receiving the stop starting instruction, continue to analyze the symbolic content of the successful start, according to the emergency starting power output current and the change of vehicle battery voltage, calculate the change coefficient Bhxs, the change coefficient Bhxs is obtained by the following formula:

[0109]

[0110] In the formula, The battery voltage speed is represented as, The output current speed is represented as, And All are weight values, wherein, And The specific value is set by the user according to the situation.

[0111] Battery voltage speed Refers to the rising speed of the vehicle battery voltage with time in the starting process, when the engine starts successfully, the vehicle generator starts to work and charges the battery, so the battery voltage will quickly rise, the rate calculates the rising speed of the battery voltage when starting successfully, which is used to judge whether it enters the normal charging state;

[0112] Output current speed Refers to the descending speed of the emergency starting power output current with time in the starting process, when the vehicle engine starts successfully, the current output demand of the emergency starting power will quickly decrease, because the engine has taken over the operation, the generator starts to charge the battery, and no longer needs the support of the emergency power supply, this rate is the characteristic of the rapid decline of the starting power current after successful starting;

[0113] S3 specific steps also include:

[0114] S32, the battery voltage speed Is obtained by the following formula:

[0115] S33, the output current speed Is obtained by the following formula: Wherein, The time interval of the starting process is represented.

[0116] In this embodiment, during the starting process, when no stop-start instruction is received, the emergency starting power supply further evaluates the progress of the starting process by analyzing the changes in the battery voltage and output current. The system calculates a change coefficient to identify the key characteristics of a successful start, which is based on a combined weight analysis of the battery voltage speed and the output current speed. By calculating the battery voltage speed, the system can determine the speed at which the generator starts charging the battery in real time. At the same time, by analyzing the output current speed, it can confirm that the auxiliary effect of the starting power supply on the engine is gradually decreasing. Under the joint action of the battery voltage speed and the current speed, the change coefficient provides an accurate judgment of the starting process, helping the system to dynamically identify the moment of successful starting and avoid excessive current output that damages the power supply and the vehicle battery. When the change coefficient meets the set standard, the system can determine that the starting has been successful, and stop the high-current output in time to achieve the purpose of protecting the equipment and the battery. This analysis mechanism not only improves the accuracy and intelligence of the starting judgment, but also improves the efficiency and safety of the emergency starting power supply, significantly optimizing the user experience.

[0117] Embodiment 6, please refer to Figure 1 , specifically: S4 specific steps include:

[0118] S41, based on the starting result recognition model constructed by deep learning technology, input the change coefficient Bhxs and the abnormal coefficient Ycxs into the starting result recognition model, and after linear normalization processing, fit and construct the judgment index Pdzs:

[0119]

[0120] In the formula, is the second correction constant, and are weight values, which can be obtained by referring to the analytic hierarchy process;

[0121] An initial model is constructed using deep learning technology, and the initial model is trained and tested using relevant transmission data information. The trained initial model is used as a state recognition model, and the feature information in the state recognition model is obtained. The state recognition model is trained and tested using the obtained feature information. In combination with the un-received stop-start instruction, the trained state recognition model is used as a starting result recognition model.

[0122] S5 specific steps include:

[0123] S51, by comparing and analyzing the judgment index Pdzs with the qualified threshold Q, it is determined whether the current emergency starting power supply successfully starts the vehicle engine, and the specific content is as follows:

[0124] If the determination index Pdzs exceeds the qualified threshold Q, it is determined that the current emergency starting power supply successfully starts the vehicle engine, at which time the emergency starting power supply will immediately stop outputting current to avoid the vehicle continuing to consume current from the starting power supply after successful starting, and automatically disconnect the circuit connection between the internal battery and the clamping clamp of the emergency starting power supply to avoid excessive power consumption and protect the service life of the power supply and the battery;

[0125] Effect: The emergency starting power supply can timely determine the state after the vehicle is successfully started, stop outputting, and thus protect the safety of the power supply and the vehicle battery;

[0126] If the determination index Pdzs does not exceed the qualified threshold Q, it is determined that the current emergency starting power supply has not successfully started the vehicle engine, at which time the output of the starting current will be continued to attempt to support the starting of the vehicle engine again. The system repeatedly detects the starting state of the vehicle in a short time, i.e., compares the determination index and the threshold again after a period of time, and determines whether the starting is successful. If the detection is not successful for multiple times (or reaches the set maximum number of attempts), the system will stop outputting current and alarm to prevent the battery from being excessively discharged or the starting power supply from being overheated. In addition, the system will prompt the user to check the vehicle battery and connection state to avoid repeated attempts due to poor equipment or battery state, causing unnecessary power consumption or damage.

[0127] In this embodiment, through the starting result recognition model based on deep learning technology, the emergency starting power supply can intelligently and accurately recognize the starting result of the vehicle engine. The system inputs the variation coefficient and the abnormality coefficient into the starting result recognition model, and after linear normalization and weight adjustment, calculates the determination index and compares it with the qualified threshold. If it exceeds the threshold, the system determines that the vehicle engine has been successfully started, and immediately stops the high-current output, automatically disconnects the connection between the internal battery and the clamping clamp, prevents excessive power consumption of the equipment, and prolongs the service life of the battery. If it does not exceed the threshold, the system continues to maintain the current output and detects the starting state of the vehicle multiple times in a short time to support the vehicle to attempt starting again. When multiple detections are unsuccessful or reach the set maximum number of attempts, the system will automatically stop outputting current, trigger an alarm, and prompt the user to check the vehicle battery and connection state to prevent the battery from being excessively discharged or the equipment from being overheated and damaged. This method combines the efficient discrimination function of the deep learning algorithm, realizes intelligent monitoring and control of the starting state, ensures that the emergency starting power supply can be disconnected in time after the vehicle is successfully started, prevents unnecessary energy loss, safely shuts down in the case of unsuccessful starting, and notifies the user, significantly improves the intelligence and safety of the equipment, and effectively prolongs the service life of the equipment and the battery.

[0128] It should be noted that the analytic hierarchy process is a qualitative and quantitative combination analysis method, which can decompose a complex problem into multiple levels. By comparing the importance of factors at each level, it can help decision makers make decisions on complex problems and determine the final decision scheme. In this process, the analytic hierarchy process can be used to determine the weight values of these indicators.

[0129] Although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for detecting external loads of an automotive emergency jump starter, characterized in that: Comprise the following steps, S1, when the emergency starting power supply is turned on, disconnect the output circuit and detect the voltage Ddy of the clamping clamp to identify the connection state of the clamping clamp and the load type, based on the connection state of the clamping clamp and the load type, judge whether to allow closing the output circuit; S2, based on the constraint of closing the output circuit in S1, if the output circuit is allowed to be closed, the vehicle battery enters the starting stage, and the dynamic current is monitored and the load state change is detected in real time to obtain the related transmission data information, and the abnormal coefficient Ycxs is constructed based on the related transmission data information, if the abnormal coefficient Ycxs exceeds the preset abnormal threshold K, the stop starting instruction is sent out; S3, based on the value of the abnormal coefficient Ycxs, continue to analyze the symbolic content of the starting success to analyze and obtain the change coefficient Bhxs; S4, use deep learning technology to build a starting result recognition model, input the change coefficient Bhxs and the abnormal coefficient Ycxs into the starting result recognition model, and after linear normalization processing, the judgment index Pdzs is fitted and constructed; S5, the qualified threshold Q is set in advance, and it is compared and analyzed with the judgment index Pdzs to judge whether the current emergency starting power supply makes the vehicle engine start successfully.

2. The method for detecting external load of an automobile emergency starting power supply according to claim 1, characterized in that: The specific steps of S1 include: S11, when the emergency starting power supply is turned on, disconnect the output circuit between the battery of the emergency starting power supply and the positive clamping clamp, and disable the small current test charging circuit and the large current test charging circuit; S12, by continuously detecting the voltage Ddy between the positive and negative electrodes of the clamping clamp, the current clamping clamp connection state and load type are preliminarily identified and judged; wherein, if the value of the clamping clamp voltage Ddy is in , it is judged that the clamping clamp is connected to the 12V battery of the vehicle, at this time the 12V load indicator is lit to prompt the user; if the value of the clamping clamp voltage Ddy is in , it is judged that the clamping clamp is connected to the 24V battery of the vehicle, at this time the 24V load indicator is lit to prompt the user; if the value of the clamping clamp voltage Ddy is above 30V, it is judged that the clamping clamp is connected to an overvoltage load, at this time the buzzer is triggered to prompt the user; if the value of the clamping clamp voltage Ddy is in , it is judged that the external load connected by the clamping clamp has multiple judgment results, wherein the multiple judgment results include no connection, short circuit and capacitive load.

3. The method for detecting external load of an automobile emergency starting power supply according to claim 2, characterized in that: The specific steps of S1 also include: S13, when there are multiple judgment results for the external load connected by the clamping clamp, use the small current test charging circuit to send current to the vehicle battery to detect the voltage state of the clamping clamp, the specific content is as follows: S131, if the voltage Ddy of the clamping clamp is equal to the battery voltage of the emergency starting power supply, it is judged that the clamping clamp is not connected with the vehicle battery; S132, if the value of the contact voltage Ddy is still within the range of S132, if the value of the contact voltage Ddy is still within the range of 4. The method for detecting external load of an automobile emergency starting power supply according to claim 3, characterized in that: The specific steps of S1 also include: S14, based on the result of the judgment in S13, when it is detected that the value of the voltage Ddy of the clamping clip is still in the range of 0.5 to 1.5 V, the large current test charging circuit is used to send current to the vehicle battery, and the voltage state of the clamping clip is continuously detected at intervals of 10 milliseconds. The specific content is as follows: S141, if the value of the voltage Ddy of the contact clip is still in the range of , then it is determined that the contact clip connection is short-circuit, at which time the buzzer is triggered to prompt the user. S142, if the voltage Ddy of the clamping clamp continues to rise, it is judged that the connection of the clamping clamp is a capacitive load; S15, based on the judgment result of S12 that the clamping clamp connected is an overvoltage load and the judgment result of S141, trigger different frequencies of the buzzer to prompt the user of the current connection state of the clamping clamp of the vehicle and the load type, and the system will not allow closing the output circuit, and will not execute the output circuit closing instruction between the battery in the emergency starting power supply and the positive clamping clamp; Based on the judgment results of S131 and S142, the system will not allow closing the output circuit, and will not execute the output circuit closing instruction between the battery in the emergency starting power supply and the positive clamping clamp.

5. The method for detecting external load of an automobile emergency starting power supply according to claim 1, characterized in that: The specific steps of S2 include: S21, based on the constraint of closing the output circuit in S1, if the clamping clamp is correctly connected to the positive and negative poles of the vehicle battery, no short circuit occurs, and the voltage of the vehicle battery matches the voltage of the emergency starting power supply, the output circuit will be allowed to be closed at this time, and the vehicle battery enters the starting stage; S22, in the starting process, real-time monitoring of dynamic current and detection of load state change are performed to obtain relevant transmission data information, wherein the relevant transmission data information includes a voltage difference in the vehicle storage battery before and after starting , a difference in output current of the emergency starting power supply before and after starting , a measured voltage of the jump starting clamp in the corresponding monitoring period , and an output current value I of the emergency starting power supply to the vehicle storage battery in the corresponding monitoring period S23, based on the related transmission data information, analyze the health status of the vehicle battery, and after linear normalization processing, construct the abnormal coefficient Ycxs, the abnormal coefficient Ycxs is obtained by the following formula: In the formula, is expressed as an equivalent internal resistance, is expressed as a load fluctuation variance, and are weight values, is expressed as a first correction constant, wherein, and The specific values are set by the user according to the situation.

6. The method for detecting external load of an automobile emergency starting power supply according to claim 5, characterized in that: The specific steps of S2 also include: S24, the equivalent internal resistance Obtained by the following formula: wherein is expressed as the difference in voltage in the vehicle battery before and after starting; is expressed as the difference in output current of the emergency starting power supply before and after starting; S25, said load fluctuation variance is obtained by the following equation: where N represents the monitoring period, n = 1, 2, 3,..., N, represents the measured voltage of the booster clamp during the nth monitoring period, represents the average voltage of the booster clamp, represents the output current value provided by the emergency starting power supply to the vehicle battery during the nth monitoring period, represents the average output current value; S26, by comparing the abnormal coefficient Ycxs with the preset abnormal threshold K, to judge the stability of the vehicle battery in the current starting process: If the abnormal coefficient Ycxs exceeds the preset abnormal threshold K, it is judged that the vehicle battery is not in stable condition in the current starting process, at which time the stop starting instruction will be issued; If the abnormal coefficient Ycxs does not exceed the preset abnormal threshold K, it is judged that the vehicle battery is temporarily in stable condition in the current starting process, at which time the stop starting instruction will not be issued temporarily.

7. The method for detecting external load of an automobile emergency starting power supply according to claim 6, characterized in that: S3, the specific steps include: S31, after not receiving the stop starting instruction, continue to analyze the symbolic content of starting success, calculate the change coefficient Bhxs according to the change of emergency starting power output current and vehicle battery voltage, the change coefficient Bhxs is obtained by the following formula: In the formula, is expressed as the speed of increase of the battery voltage, is expressed as the speed of decrease of the output current, and are weight values, wherein, and The specific values are set by the user according to the situation.

8. The method for detecting external load of an automobile emergency starting power supply according to claim 7, characterized in that: S3, the specific steps also include: S32, the battery voltage speed-up is obtained by the following equation: S33, the output current speed-down is obtained by the following equation: wherein, denotes the time interval of the start-up process.

9. The method for external load detection of an automobile emergency starting power supply of claim 1, characterized in that: S4, the specific steps include: S41, based on the starting result recognition model constructed by deep learning technology, input the change coefficient Bhxs and abnormal coefficient Ycxs into the starting result recognition model, and after linear normalization processing, the judgment index Pdzs is fitted and constructed: wherein and are weight values, is a second correction constant.

10. The method for external load detection of an automobile emergency starting power supply according to claim 1, characterized in that: S5, the specific steps include: S51, by comparing and analyzing the judgment index Pdzs with the qualified threshold Q, to judge whether the current emergency starting power makes the vehicle engine start successfully, the specific content is as follows: If the judgment index Pdzs exceeds the qualified threshold Q, it is judged that the current emergency starting power makes the vehicle engine start successfully, at which time the emergency starting power will immediately stop outputting current, and automatically disconnect the circuit connection between the internal battery of the emergency starting power and the power-on clamp; If the judgment index Pdzs does not exceed the qualified threshold Q, it is judged that the current emergency starting power has not made the vehicle engine start successfully, at which time the output of starting current will be continued to try to support the starting of vehicle engine again, and to judge whether the starting is successful, if the detection is not successful for many times, the system will stop outputting current and alarm.

Images