Inductor noise filtering detection and interference early warning method and system for new energy automobile

Abstract

The invention provides an inductance noise filtering detection and interference early warning method and system for a new energy automobile, and the method comprises the steps: detecting the noise distribution feature information of all inductance elements in the new energy automobile in a charging process, so as to determine a noise influence region in the automobile; positioning an area with relatively high noise interference intensity, which is formed by overlapping all the inductance elements in the automobile under the excitation of the charging current; and determining interference noise state information of all the electronic devices based on working signal data of all the electronic devices located in the noise influence area so as to perform noise filtering processing on the electronic devices in an abnormal state and reduce noise interference of inductance elements on the electronic devices. According to the method, on the basis of noise filtering live information of the electronic device, whether the electronic device returns to normal or not is judged, function failure early warning notification is conducted on the automobile, and the electronic device which fails due to interference noise from an inductance element in the automobile is accurately recognized and early warned in time.

Description

Technical Field

[0001] The present invention relates to the field of new energy vehicles, and particularly to an inductance noise filtering detection and interference warning method and system for new energy vehicles. Background Art

[0002] A large number of sensing devices are included inside new energy vehicles. These sensing devices are used to detect the internal and external environments of the vehicles themselves, providing important and sufficient data support for the normal operation of the vehicles and the realization of specific vehicle functions. Inductive elements are usually included inside the sensing devices. As inductive electronic components, inductive elements will generate high-frequency interference noise under the action of external excitation. These high-frequency interference noises will affect the normal operation of other electronic devices inside the vehicle and may even cause other electronic devices to malfunction. During the charging process of new energy vehicles, the charging current will excite the inductive elements inside the vehicle, causing the inductive elements to emit high-frequency interference noises that will interfere with other electronic devices. If a large number of inductive elements inside the vehicle simultaneously generate high-frequency interference noises under the excitation of the charging current, these high-frequency interference noises may be superimposed on each other and may break down other electronic devices, seriously affecting the normal operation and safe driving of new energy vehicles. Therefore, it is of great significance to detect and filter the noise of the inductive elements of new energy vehicles to ensure the driving safety and reliability of new energy vehicles. Summary of the Invention

[0003] The purpose of the present invention is to provide an inductance noise filtering detection and interference warning method and system for new energy vehicles, to detect the noise distribution characteristic information of all inductive elements inside the vehicle during the charging process, thereby determining the noise influence area inside the vehicle, and locating the area with a relatively large noise interference intensity formed by the superposition of all inductive elements inside the vehicle under the excitation of the charging current; also, based on the respective working signal data of all electronic devices located in the noise influence area, determine the respective interference noise state information of all electronic devices, thereby performing noise filtering processing on the electronic devices in an abnormal state, reducing the noise interference of the inductive elements on the electronic devices, and avoiding the occurrence of faults in the electronic devices; based on the actual noise filtering information of the electronic devices, judge whether the electronic devices return to normal, and send a warning notice for functional failure of the vehicle, accurately identify and timely warn the electronic devices that fail due to the interference noise from the inductive elements inside the vehicle, and ensure the driving safety and reliability of the vehicle.

[0004] The present invention is realized through the following technical solutions: An inductance noise filtering detection and interference warning method for new energy vehicles, comprising: Detect all inductive elements inside a new energy vehicle during the charging process to determine the respective noise distribution characteristic information of all inductive elements; based on the noise distribution characteristic information of all inductive elements, determine the noise influence area inside the new energy vehicle; Obtain the operating signal data of each electronic device located within the noise - affected area, analyze the operating signal data to determine the interference noise status information of each electronic device; based on the interference noise status information, determine the electronic devices in an abnormal state, and perform noise filtering processing on the electronic devices in an abnormal state; Based on the noise filtering actual situation information of the electronic devices in an abnormal state, determine whether the electronic devices in an abnormal state have returned to the normal state; based on the positions of the electronic devices that have not returned to the normal state within the new energy vehicle, issue a warning notice for functional failure of the new energy vehicle.

[0005] Optionally, detect all inductive elements inside the new energy vehicle during the charging process to determine the noise distribution characteristic information of each inductive element; based on the noise distribution characteristic information of all inductive elements, determine the noise - affected area inside the new energy vehicle, including: Based on the charging mode of the new energy vehicle, determine the detection operation parameters for all inductive elements inside the new energy vehicle during the charging process; wherein, the detection operation parameters include the detection operation frequency and the detection operation sensitivity; Based on the detection operations on all inductive elements, obtain the high - frequency noise intensity change information generated by each inductive element under the charging excitation; based on the high - frequency noise intensity change information, determine the spatial intensity distribution characteristic information of the high - frequency noise generated by each inductive element, and use this as the noise distribution characteristic information; wherein, the spatial intensity distribution characteristic information of the high - frequency noise is the intensity change characteristic information of the high - frequency noise intensity generated by the inductive element along the direction away from the inductive element; Based on the spatial intensity distribution characteristic information of the high - frequency noise generated by each inductive element, determine the superimposed noise intensity distribution information of the high - frequency noise generated by all inductive elements inside the new energy vehicle; based on the superimposed noise intensity distribution information, determine the noise - affected area inside the new energy vehicle; wherein, the average intensity of the high - frequency noise within the noise - affected area is higher than a preset intensity threshold.

[0006] Optionally, obtain the operating signal data of each electronic device located within the noise - affected area, analyze the operating signal data to determine the interference noise status information of each electronic device; based on the interference noise status information, determine the electronic devices in an abnormal state, and perform noise filtering processing on the electronic devices in an abnormal state, including: Periodically detect the current of all electronic devices located within the noise-affected area to obtain the operating current signal data of each of the electronic devices; based on the respective reference operating current floating ranges of all the electronic devices, identify and analyze the operating current signal data to determine the interference current noise status information of each of the electronic devices; wherein, the interference current noise status information includes the interference current noise intensity and duration information of the electronic device during operation. Based on the interference current noise status information, determine whether the interference current noise of the electronic device will submerge the useful current signal of the electronic device during a preset operating cycle; if so, determine that the electronic device is in an abnormal state; if not, determine that the electronic device is not in an abnormal state; based on the interference current noise intensity and frequency of the electronic device in the abnormal state, perform noise filtering processing on the electronic device in the abnormal state.

[0007] Optionally, based on the noise filtering actual situation information of the electronic device in the abnormal state, determine whether the electronic device in the abnormal state has returned to the normal state; based on the locations of the electronic devices in the new energy vehicle that have not returned to the normal state, issue a function failure warning notice for the new energy vehicle, including: Obtain the change information of the interference current noise intensity of the electronic device in the abnormal state during the noise filtering process, and based on the change information of the interference current noise intensity, determine whether the average interference current noise intensity of the electronic device in the abnormal state during the preset operating cycle device is less than or equal to a preset intensity threshold; if so, determine that the electronic device in the abnormal state has returned to the normal state; if not, determine that the electronic device in the abnormal state has not returned to the normal state. Based on the circuit locations of all the electronic devices in the new energy vehicle that have not returned to the normal state, estimate the probability of a fault occurring in the corresponding circuit in the new energy vehicle; compare the fault occurrence probability with a threshold value to issue a function failure warning notice for the new energy vehicle.

[0008] Optionally, it further includes evaluating the health status and calculating the power loss of all the inductive elements inside the new energy vehicle during charging, and controlling the input power of the new energy vehicle during charging according to the results of the health status evaluation and the power loss calculation. Step S1, use the following formula (1) to evaluate the health status of the inductive elements of the new energy vehicle. In the above formula (1), represents the health status value of the th inductive element; represents the DC resistance of the th inductive element; represents the The inductance value of an inductive component; Denote the extra aging factor of the th inductive component, which characterizes the deterioration rate of the th inductive component over time. The larger the value, the greater the deterioration rate of the th inductive component over time; Denote the attenuation coefficient of the th inductive component; Denote the th inductive component's temperature coefficient; Denote the current intensity of the th inductive component at Denote the imaginary unit, which characterizes the phase difference in an AC circuit; Denote the time; Denote the current value magnitude of the th inductive component at In step S2, use the following formula (2) to calculate the power loss of the inductive components of the new energy vehicle. In the above formula (2), Denote the total power loss of all inductive components in the system; Denote the total number of all inductive components; Denote the loss factor of the th inductive component; In step S3, use the following formula (3) to generate the dynamic control strategy for the new energy vehicle during charging based on the results of the health state assessment and the power loss calculation. Denote the charging control strategy value at time, i.e., the charging efficiency adjustment control value; Denote the input power at time; Denote the charging adjustment coefficient; Denote the natural constant; Denote the adjustment factor of the impact of the health state on the charging efficiency; Denote the average value of the health state values of all inductive components, which is obtained by calculating the mean of the health state assessment results of all inductive components calculated by the above formula (1); If is greater than 0.5, increase the input power during the charging of the new energy vehicle; If is less than or equal to 0.5, decrease the input power during the charging of the new energy vehicle.

[0009] The inductance noise filtering detection and interference warning system for a new energy vehicle includes: An inductance element-generated noise detection module for detecting all inductance elements inside the new energy vehicle during the charging process to determine the noise distribution characteristic information of each of all inductance elements; A noise influence area determination module for determining the noise influence area inside the new energy vehicle based on the noise distribution characteristic information of all inductance elements; An interference noise state determination module for obtaining the working signal data of each of all electronic devices located in the noise influence area, analyzing the working signal data, and determining the interference noise state information of each of all electronic devices; A noise filtering processing module for determining the electronic devices in an abnormal state based on the interference noise state information and performing noise filtering processing on the electronic devices in an abnormal state; An electronic device state judgment module for judging whether the electronic devices in an abnormal state return to the normal state based on the noise filtering actual situation information of the electronic devices in an abnormal state; A warning notification module for performing a function failure warning notification on the new energy vehicle based on the locations of the electronic devices in the new energy vehicle that have not returned to the normal state.

[0010] Optionally, the inductance element-generated noise detection module is used to detect all inductance elements inside the new energy vehicle during the charging process to determine the noise distribution characteristic information of each of all inductance elements, including: Based on the charging mode of the new energy vehicle, determine the detection operation parameters for all inductance elements inside the new energy vehicle during the charging process; wherein, the detection operation parameters include the detection operation frequency and the detection operation sensitivity; Based on the detection operations on all inductance elements, obtain the high-frequency noise intensity change information generated by each of all inductance elements under the charging excitation; based on the high-frequency noise intensity change information, determine the spatial intensity distribution characteristic information of the high-frequency noise generated by each of all inductance elements, and use this as the noise distribution characteristic information; wherein, the spatial intensity distribution characteristic information of the high-frequency noise is the intensity change characteristic information of the high-frequency noise intensity generated by the inductance element along the direction away from the inductance element; The noise impact area determination module is configured to determine the noise impact area inside the new energy vehicle based on the noise distribution characteristic information of all inductive components, including: Based on the spatial intensity distribution characteristic information of the high-frequency noise generated by each of all inductive components, determining the superimposed noise intensity distribution information formed by the high-frequency noise generated by all inductive components inside the new energy vehicle; based on the superimposed noise intensity distribution information, determining the noise impact area inside the new energy vehicle; wherein, the average intensity of the high-frequency noise within the noise impact area is higher than a preset intensity threshold.

[0011] Optionally, the interference noise state determination module is configured to obtain the operating signal data of each of all electronic devices located within the noise impact area, and analyze the operating signal data to determine the interference noise state information of each of all electronic devices, including: Performing periodic current detection on all electronic devices located within the noise impact area to obtain the operating current signal data of each of the electronic devices; based on the reference operating current floating range of each of all electronic devices, performing identification and analysis on the operating current signal data to determine the interference current noise state information of each of all electronic devices; wherein, the interference current noise state information includes the interference current noise intensity and duration information of the electronic device during operation. The noise filtering and processing module is configured to determine the electronic devices in an abnormal state based on the interference noise state information, and perform noise filtering and processing on the electronic devices in an abnormal state, including: Based on the interference current noise state information, determining whether the interference current noise of the electronic device will submerge the useful current signal of the electronic device during a preset operating cycle; if so, determining that the electronic device is in an abnormal state; if not, determining that the electronic device is not in an abnormal state; based on the interference current noise intensity and frequency of the electronic device in an abnormal state, performing noise filtering and processing on the electronic device in an abnormal state. Optionally, the electronic device state judgment module is configured to judge whether the electronic device in an abnormal state has returned to a normal state based on the noise filtering actual situation information of the electronic device in an abnormal state, including: Obtaining the change information of the interference current noise intensity of the electronic device in an abnormal state during the noise filtering process, and based on the change information of the interference current noise intensity, judging whether the average intensity of the interference current noise of the electronic device in an abnormal state during a preset operating cycle device is less than or equal to a preset intensity threshold; if so, determining that the electronic device in an abnormal state has returned to a normal state; if not, determining that the electronic device in an abnormal state has not returned to a normal state. The warning notification module is used to perform a malfunction warning notification on the new energy vehicle based on the location of the electronic devices in the new energy vehicle that have not returned to the normal state, including: Based on the circuit locations of all the electronic devices in the new energy vehicle that have not returned to the normal state, estimate the probability of a fault occurring in the corresponding circuit in the new energy vehicle; compare the probability of the fault occurrence with a threshold value to perform a malfunction warning notification on the new energy vehicle.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The method and system for inductance noise filtering detection and interference warning of a new energy vehicle provided in this application detect the noise distribution characteristic information of all the inductance elements inside the new energy vehicle during the charging process, so as to determine the noise influence area inside the vehicle, and locate the area with a relatively large noise interference intensity formed by the superposition of all the inductance elements inside the vehicle under the excitation of the charging current; also determine the interference noise state information of all the electronic devices based on the respective working signal data of all the electronic devices located in the noise influence area, so as to perform noise filtering processing on the electronic devices in the abnormal state, reduce the noise interference of the inductance elements on the electronic devices, and avoid the occurrence of faults in the electronic devices; based on the actual situation information of the noise filtering of the electronic devices, judge whether the electronic devices have returned to the normal state, and perform a malfunction warning notification on the vehicle, accurately identify and timely warn the electronic devices that fail due to the interference noise from the inductance elements inside the vehicle, and ensure the driving safety and reliability of the vehicle. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them: Figure 1 It is a schematic flow chart of the method for inductance noise filtering detection and interference warning of a new energy vehicle provided by the present invention.

[0014] Figure 2 It is a schematic structural diagram of the system for inductance noise filtering detection and interference warning of a new energy vehicle provided by the present invention. Detailed Embodiments

[0015] To make the above objects, features, and advantages of the present application more apparent and understandable, the following will describe in detail the specific embodiments of the present application with reference to the accompanying drawings. It can be understood that the specific embodiments described herein are only for explaining the present application and not for limiting the present application. Additionally, it should be noted that for the convenience of description, only the parts related to the present application rather than all the structures are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0016] The terms "comprising" and "having" and any variations thereof in the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or devices.

[0017] Referring to the embodiments herein means that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0018] Please refer to Figure 1 As shown, a method for detecting inductance noise filtering and interference warning of a new energy vehicle provided by an embodiment of the present application. The method for detecting inductance noise filtering and interference warning of the new energy vehicle includes: Detect all inductance components inside the new energy vehicle during the charging process to determine the noise distribution characteristic information of each inductance component; based on the noise distribution characteristic information of all inductance components, determine the noise impact area inside the new energy vehicle; Obtain the working signal data of all electronic devices located in the noise impact area, analyze the working signal data to determine the interference noise state information of each electronic device; based on the interference noise state information, determine the electronic devices in an abnormal state and perform noise filtering processing on the electronic devices in an abnormal state; Based on the noise filtering actual situation information of the electronic devices in an abnormal state, determine whether the electronic devices in an abnormal state have returned to the normal state; based on the positions of the electronic devices in the new energy vehicle that have not returned to the normal state, issue a warning notification for functional failure of the new energy vehicle.

[0019] Beneficial effects of the above embodiments. The inductance noise filtering detection and interference warning method for new energy vehicles detects the noise distribution characteristic information of all inductance components inside the new energy vehicle during the charging process, determines the noise influence area inside the vehicle, and locates the area with a relatively large noise interference intensity formed by the superposition of all inductance components inside the vehicle under the charging current excitation; based on the working signal data of all electronic devices located in the noise influence area, it determines the interference noise state information of all electronic devices, filters the noise of the electronic devices in an abnormal state to reduce the noise interference of the inductance components on the electronic devices and avoid malfunctions of the electronic devices; based on the actual noise filtering information of the electronic devices, it determines whether the electronic devices return to normal, issues a warning notice for vehicle functional failure, accurately identifies and timely warns the electronic devices that fail due to the interference noise from the inductance components inside the vehicle, and ensures the driving safety and reliability of the vehicle.

[0020] In another embodiment, all inductance components inside the new energy vehicle are detected during the charging process to determine the noise distribution characteristic information of each inductance component; based on the noise distribution characteristic information of all inductance components, the noise influence area inside the new energy vehicle is determined, including: Based on the charging mode of the new energy vehicle, the detection operation parameters for all inductance components inside the new energy vehicle during the charging process are determined; among them, the detection operation parameters include the detection operation frequency and the detection operation sensitivity; based on the detection operation of all inductance components, the high-frequency noise intensity change information generated by each inductance component under the charging excitation is obtained; based on the high-frequency noise intensity change information, the spatial intensity distribution characteristic information of the high-frequency noise generated by each inductance component is determined as the noise distribution characteristic information; among them, the spatial intensity distribution characteristic information of the high-frequency noise is the intensity change characteristic information of the high-frequency noise intensity generated by the inductance component along the direction away from the inductance component. Based on the spatial intensity distribution characteristic information of the high-frequency noise generated by each inductance component, the superimposed noise intensity distribution information formed by the high-frequency noise generated by all inductance components inside the new energy vehicle is determined; based on the superimposed noise intensity distribution information, the noise influence area inside the new energy vehicle is determined; among them, the average high-frequency noise intensity in the noise influence area is higher than the preset intensity threshold.

[0021] Beneficial effects of the above embodiments. The charging modes of new energy vehicles mainly include fast charging mode and slow charging mode. Among them, the fast charging mode has a higher charging current value compared to the slow charging mode, so that the excitation current acting on the new energy vehicle in the fast charging mode is greater than that in the slow charging mode. When the new energy vehicle is under the action of an excitation current during charging (i.e., the greater the charging excitation), the high-frequency noise intensity of the inductance element inside the vehicle changes faster due to the excitation current product. In order to accurately and comprehensively detect the high-frequency noise intensity of the inductance element, it is necessary to select appropriate detection operation parameters according to the magnitude of the excitation current received by the new energy vehicle during charging. Therefore, first determine whether the new energy vehicle is currently in the fast charging mode or the slow charging mode, and determine the detection operation parameters for all inductance elements inside the new energy vehicle during charging; generally speaking, when the vehicle is in the fast charging mode, a higher inspection operation frequency and a higher detection operation sensitivity are used to detect the inductance element; when the vehicle is in the slow charging state, a lower inspection operation frequency and a lower detection operation sensitivity are used to detect the inductance element, so as to ensure that all high-frequency noise intensity data generated by the inductance element can be accurately and comprehensively detected in any charging mode of the vehicle.

[0022] An inductive component will generate high-frequency electromagnetic interference noise by itself under the action of an excitation current. These high-frequency electromagnetic interference noises will propagate outward and affect other adjacent electronic devices. As the high-frequency electromagnetic interference noise propagates outward, the intensity of the high-frequency electromagnetic interference noise decreases as the propagation distance increases, so that the farther an electronic device is from the inductive component, the less affected it is by the high-frequency electromagnetic interference noise. That is, the high-frequency electromagnetic interference noise generated by each inductive component corresponds to a specific range of influence. Generally speaking, when the intensity of the high-frequency electromagnetic interference noise decays to half of its original value during propagation, it can be considered that it has no adverse effect on the electronic device. In order to accurately determine the area where the high-frequency electromagnetic interference noises generated by all inductive components in a new energy vehicle have a real impact on electronic devices under the combined superposition, based on the detection operations of all inductive components, the change information of the high-frequency noise intensity generated by each inductive component under charging excitation is obtained, and the spatial intensity distribution characteristic information of the high-frequency noises generated by all inductive components is determined, so as to accurately determine the intensity change characteristic information of the high-frequency noise intensity generated by each inductive component along the direction away from the inductive component under charging excitation. Then, the spatial intensity distribution characteristic information of the high-frequency noises generated by all inductive components is subjected to spatial superposition processing to determine the superimposed noise intensity distribution information formed by the high-frequency noises generated by all inductive components inside the new energy vehicle, that is, the noise intensity distribution information formed by the combined superposition of the high-frequency electromagnetic interference noises generated by all inductive components after propagation inside the new energy vehicle, so as to identify and determine the noise influence area inside the new energy vehicle. The average intensity of the high-frequency electromagnetic interference noise in this noise influence area is higher than the preset intensity threshold, and the high-frequency electromagnetic interference noise in this noise influence area has sufficient intensity to have an adverse effect on the electronic devices inside it, so as to accurately determine the target object for subsequent noise filtering processing of the corresponding electronic devices.

[0023] In another embodiment, the working signal data of all electronic devices located in the noise influence area are obtained, and the working signal data are analyzed to determine the interference noise state information of all electronic devices; based on the interference noise state information, the electronic devices in an abnormal state are determined, and noise filtering processing is performed on the electronic devices in an abnormal state, including: Periodic current detection is performed on all electronic devices located in the noise influence area to obtain the working current signal data of each electronic device; based on the reference working current floating range of all electronic devices, the working current signal data are identified and analyzed to determine the interference current noise state information of all electronic devices; wherein, the interference current noise state information includes the interference current noise intensity and duration information of the electronic device during operation. Based on the interference current noise state information, determine whether the interference current noise of the electronic device will submerge the useful current signal of the electronic device during a preset working cycle; if so, determine that the electronic device is in an abnormal state; if not, determine that the electronic device is not in an abnormal state; based on the interference current noise intensity and frequency of the electronic device in the abnormal state, perform noise filtering processing on the electronic device in the abnormal state.

[0024] The beneficial effects of the above embodiments are as follows. The high-frequency electromagnetic interference noise in the noise influence area has sufficient intensity to have an adverse effect on the internal electronic devices, that is, the electronic devices located in the noise influence area will generate interference current noise under the influence of high-frequency electromagnetic interference noise (that is, other interference current noise is added on the basis of the original useful current signal during the operation of the electronic device). If the interference current noise is too large, it will not only submerge and cover the original useful current signal, but also break down the electronic device, resulting in the failure of the electronic device to work. In addition, the sizes of the interference current noises generated by different types of electronic devices under the action of the same intensity of high-frequency electromagnetic interference noise are not the same. In order to accurately determine the interference current noise of each electronic device, periodic current detection is performed on all the electronic devices located in the noise influence area to obtain the respective working current signal data of the electronic devices, and based on the respective reference working current floating ranges of all the electronic devices (that is, the floating range of the useful current signal intensity corresponding to the normal operation of the electronic device), the working current signal data is identified and analyzed to determine the interference current noise intensity and duration information of all the electronic devices. Moreover, based on the interference current noise state information, determine whether the interference current noise of the electronic device will submerge the useful current signal of the electronic device during a preset working cycle, so as to determine whether the electronic device is in an abnormal state, and based on the interference current noise intensity and frequency of the electronic device in the abnormal state, perform noise filtering processing on the electronic device in the abnormal state to ensure effective suppression of the interference current noise inside the electronic device in the abnormal state and reduce the probability of the electronic device failing to work and malfunctioning.

[0025] In another embodiment, based on the noise filtering actual situation information of the electronic device in the abnormal state, determine whether the electronic device in the abnormal state has returned to the normal state; based on the location of the electronic device in the new energy vehicle that has not returned to the normal state, issue a warning notice of functional failure for the new energy vehicle, including: Obtain the change information of the interference current noise intensity during the noise filtering process of the electronic device in the abnormal state. Based on this change information of the interference current noise intensity, determine whether the average interference current noise intensity of the electronic device in the abnormal state within the preset working cycle is less than or equal to the preset intensity threshold; if so, determine that the electronic device in the abnormal state has returned to the normal state; if not, determine that the electronic device in the abnormal state has not returned to the normal state; Based on the circuit positions of all the electronic devices in the new energy vehicle that have not returned to the normal state, estimate the probability of a fault occurring in the corresponding circuit in the new energy vehicle; compare the fault occurrence probability with a threshold to issue a warning notice for the functional failure of the new energy vehicle.

[0026] The beneficial effects of the above embodiments are as follows. In actual noise filtering processing, the noise filtering processing of some electronic devices in the abnormal state can effectively reduce and suppress the interference current noise inside the electronic devices, enabling the electronic devices to return to the normal state; while the noise filtering processing of another part of the electronic devices in the abnormal state cannot effectively reduce and suppress the interference current noise inside the electronic devices. At this time, the performance of the electronic devices in the abnormal state will continue to deteriorate under the action of the interference current noise. These electronic devices that cannot return to the normal state will affect the normal operation of the circuit they are in, thus causing some functions inside the new energy vehicle to malfunction. In order to accurately detect the functional failure situation inside the new energy vehicle, based on the change information of the interference current noise intensity during the noise filtering process of the electronic devices in the abnormal state, determine whether the average interference current noise intensity of the electronic devices in the abnormal state within the preset working cycle is less than or equal to the preset intensity threshold, so as to accurately determine whether the electronic devices in the abnormal state have returned to the normal state. Also, based on the circuit positions of all the electronic devices in the new energy vehicle that have not returned to the normal state, determine the number of electronic devices in each functional circuit in the new energy vehicle that have not returned to the normal state, and estimate the probability of a fault occurring in this functional circuit based on this. If the fault occurrence probability is greater than or equal to the preset probability threshold, issue a warning notice for the functional failure of the new energy vehicle, that is, send a warning notice message containing the location information of the malfunctioning functional circuit outward, which is convenient for timely and accurate circuit maintenance of the new energy vehicle.

[0027] In another embodiment, it further includes evaluating the health status and calculating the power loss of all the inductive components inside the new energy vehicle during the charging process, and controlling the input power of the new energy vehicle during charging according to the results of the health status evaluation and the power loss calculation. Step S1, use the following formula (1) to evaluate the health status of the inductive components of the new energy vehicle. In the above formula (1), represents the health status value of the th inductive component; represents the DC resistance of the th inductor element; represents the inductance value of the th inductor element; represents the additional aging factor of the th inductor element, which characterizes the deterioration rate of the th inductor element over time. The larger it is, the greater the deterioration rate of the th inductor element over time; represents the attenuation coefficient of the th inductor element; represents the temperature coefficient of the th inductor element; represents the current intensity of the th inductor element at the moment; represents the imaginary unit, which characterizes the phase difference in an AC circuit; represents the frequency of the AC signal, usually expressed in radians per second; represents the moment; represents the current value magnitude of the th inductor element at the moment; In step S2, use the following formula (2) to calculate the power loss of the inductor elements of the new energy vehicle. In the above formula (2), represents the total power loss of all inductor elements in the system; represents the total number of all inductor elements; represents the loss factor of the th inductor element; In step S3, use the following formula (3) to generate the dynamic control strategy of the new energy vehicle during charging according to the results of the health state assessment and the power loss calculation. In the above formula (3), represents the moment charging control strategy value, that is, the charging efficiency adjustment control value; represents the moment input power; represents the charging adjustment coefficient; represents the natural constant; represents the adjustment factor of the impact of the health state on the charging efficiency; represents the time decay factor, which characterizes the influence coefficient of time on the charging efficiency; Represents the average value of the health state values of all inductive components, which is obtained by calculating the mean of the health state evaluation results of all inductive components calculated by the above formula (1); If is greater than 0.5, then increase the input power during charging of the new energy vehicle; If is less than or equal to 0.5, then decrease the input power during charging of the new energy vehicle.

[0028] The beneficial effects of the above embodiments are as follows: By using the above formula (1), the health state of the inductive components of the new energy vehicle is evaluated, so that by introducing an additional aging factor and a temperature coefficient, the health state of the inductive components can be more accurately evaluated; then by using the above formula (2), the power loss of the inductive components of the new energy vehicle is calculated, taking into account the influence of current on the additional loss, quantifying the energy loss of the system, making the calculation results more accurate; then by using the above formula (3), according to the results of the health state evaluation and the power loss calculation, a dynamic control strategy for the new energy vehicle during charging is generated, combining the input power and the power loss, dynamically adjusting the charging strategy, and considering the influence of time on the efficiency to ensure the safety and efficiency of the charging process.

[0029] Please refer to Figure 2 as shown, the inductive noise filtering detection and interference warning system of a new energy vehicle provided by an embodiment of the present application. The inductive noise filtering detection and interference warning system of the new energy vehicle includes: An inductive component-generated noise detection module, configured to detect all inductive components inside the new energy vehicle during the charging process, and determine the noise distribution characteristic information of each inductive component; A noise influence area determination module, configured to determine the noise influence area inside the new energy vehicle based on the noise distribution characteristic information of all inductive components; An interference noise state determination module, configured to obtain the working signal data of each electronic device located in the noise influence area, analyze the working signal data, and determine the interference noise state information of each electronic device; A noise filtering processing module, configured to determine the electronic devices in an abnormal state based on the interference noise state information, and perform noise filtering processing on the electronic devices in an abnormal state; An electronic device state judgment module, configured to judge whether the electronic devices in an abnormal state return to the normal state based on the noise filtering actual situation information of the electronic devices in an abnormal state; A warning notification module, configured to perform a function failure warning notification on the new energy vehicle based on the location of the electronic devices in the new energy vehicle that have not returned to the normal state.

[0030] Beneficial effects of the above embodiments: The inductance noise filtering detection and interference warning system of the new energy vehicle detects the noise distribution characteristic information of all inductance components inside the new energy vehicle during the charging process, so as to determine the noise influence area inside the vehicle, and locates the area with a relatively large noise interference intensity formed by all inductance components inside the vehicle under the excitation of the charging current; it also determines the interference noise state information of all electronic devices based on the respective working signal data of all electronic devices located in the noise influence area, so as to perform noise filtering processing on the electronic devices in an abnormal state, reduce the noise interference of the inductance components on the electronic devices, and avoid failures of the electronic devices; based on the actual noise filtering information of the electronic devices, it judges whether the electronic devices return to normal, issues a warning notice for functional failure of the vehicle, accurately identifies and timely warns the electronic devices that fail due to the interference noise from the inductance components inside the vehicle, and ensures the driving safety and reliability of the vehicle.

[0031] In another embodiment, the inductance component noise generation detection module is used to detect all inductance components inside the new energy vehicle during the charging process, and determine the noise distribution characteristic information of all inductance components respectively, including: Based on the charging mode of the new energy vehicle, determine the detection operation parameters for all inductance components inside the new energy vehicle during the charging process; among them, the detection operation parameters include the detection operation frequency and the detection operation sensitivity; Based on the detection operations on all inductance components, obtain the high-frequency noise intensity change information generated by all inductance components respectively under the charging excitation; based on the high-frequency noise intensity change information, determine the spatial intensity distribution characteristic information of the high-frequency noise generated by all inductance components respectively, and use this as the noise distribution characteristic information; among them, the spatial intensity distribution characteristic information of the high-frequency noise is the intensity change characteristic information of the high-frequency noise intensity generated by the inductance component along the direction away from the inductance component. The noise influence area determination module is used to determine the noise influence area inside the new energy vehicle based on the noise distribution characteristic information of all inductance components, including: Based on the spatial intensity distribution characteristic information of the high-frequency noise generated by all inductance components respectively, determine the superimposed noise intensity distribution information formed by the high-frequency noise generated by all inductance components inside the new energy vehicle; based on the superimposed noise intensity distribution information, determine the noise influence area inside the new energy vehicle; among them, the average high-frequency noise intensity in the noise influence area is higher than the preset intensity threshold.

[0032] Beneficial effects of the above embodiments. The charging modes of new energy vehicles mainly include fast charging mode and slow charging mode. Among them, the fast charging mode has a higher charging current value compared with the slow charging mode, so that the excitation current acting on the new energy vehicle in the fast charging mode is greater than that in the slow charging mode. When the excitation current received by the new energy vehicle during charging (that is, the greater the charging excitation), the high-frequency noise intensity of the inductance element inside the vehicle changes faster due to the excitation current product. In order to accurately and comprehensively detect the high-frequency noise intensity of the inductance element, it is necessary to select appropriate detection operation parameters according to the magnitude of the excitation current received by the new energy vehicle during charging. For this reason, first determine whether the new energy vehicle is currently in the fast charging mode or the slow charging mode, and determine the detection operation parameters for all inductance elements inside the new energy vehicle during charging; generally speaking, when the vehicle is in the fast charging mode, a higher inspection operation frequency and a higher detection operation sensitivity are used to detect the inductance element; when the vehicle is in the slow charging state, a lower inspection operation frequency and a lower detection operation sensitivity are used to detect the inductance element, so as to ensure that all high-frequency noise intensity data generated by the inductance element can be accurately and comprehensively detected in any charging mode of the vehicle.

[0033] An inductive component will generate high-frequency electromagnetic interference (EMI) noise by itself under the action of an excitation current. These high-frequency EMI noises will propagate outward and affect other adjacent electronic devices. As the high-frequency EMI noise propagates outward, the intensity of the high-frequency EMI noise decreases as the propagation distance increases, so that the farther away from the inductive component an electronic device is, the less affected it is by the high-frequency EMI noise. That is, the high-frequency EMI noise generated by each inductive component corresponds to a specific range of influence. Generally speaking, when the intensity of the high-frequency EMI noise decays to half of its original value during propagation, it can be considered that it has no adverse effect on the electronic device. In order to accurately determine the area within a new energy vehicle where the combined high-frequency EMI noises generated by all inductive components have a real impact on electronic devices, based on the detection operations of all inductive components, the change information of the high-frequency noise intensity generated by each inductive component under charging excitation is obtained, and based on this, the spatial intensity distribution characteristic information of the high-frequency noises generated by all inductive components is determined, so as to accurately determine the intensity change characteristic information of the high-frequency noise intensity generated by each inductive component along the direction away from the inductive component under charging excitation. Then, the spatial intensity distribution characteristic information of the high-frequency noises generated by all inductive components is subjected to spatial superposition processing to determine the superimposed noise intensity distribution information formed by the high-frequency noises generated by all inductive components inside the new energy vehicle, that is, the noise intensity distribution information formed by the combined superposition of the high-frequency EMI noises generated by all inductive components after propagation inside the new energy vehicle, so as to identify and determine the noise influence area inside the new energy vehicle. The average intensity of the high-frequency EMI noise in this noise influence area is higher than a preset intensity threshold, and the high-frequency EMI noise in this noise influence area has sufficient intensity to have an adverse effect on the electronic devices inside it, so as to accurately determine the target object for subsequent noise filtering processing of the corresponding electronic devices.

[0034] In another embodiment, the interference noise state determination module is used to obtain the respective working signal data of all electronic devices located in the noise influence area, and analyze the working signal data to determine the interference noise state information of all electronic devices, including: Performing periodic current detection on all electronic devices located in the noise influence area to obtain the respective working current signal data of the electronic devices; based on the respective reference working current floating ranges of all electronic devices, identifying and analyzing the working current signal data to determine the interference current noise state information of all electronic devices; wherein, the interference current noise state information includes the interference current noise intensity and duration information of the electronic device during operation; The noise filtering processing module is used to determine the electronic devices in an abnormal state based on the interference noise state information, and perform noise filtering processing on the electronic devices in an abnormal state, including: Based on the interference current noise state information, determine whether the interference current noise of the electronic device will submerge the useful current signal of the electronic device during a preset working cycle; if so, determine that the electronic device is in an abnormal state; if not, determine that the electronic device is not in an abnormal state; based on the interference current noise intensity and frequency of the electronic device in the abnormal state, perform noise filtering processing on the electronic device in the abnormal state.

[0035] The beneficial effects of the above embodiments are as follows. The high-frequency electromagnetic interference noise in the noise-affected area has sufficient intensity to have an adverse effect on the internal electronic devices, that is, the electronic devices located in the noise-affected area will generate interference current noise under the influence of high-frequency electromagnetic interference noise (that is, other interference current noises are added to the original useful current signal during the operation of the electronic device). If the interference current noise is too large, it will not only submerge and cover the original useful current signal, but also break down the electronic device, resulting in the failure of the electronic device to work. In addition, the sizes of the interference current noises generated by different types of electronic devices under the action of the same intensity of high-frequency electromagnetic interference noise are not the same. In order to accurately determine the interference current noise of each electronic device, periodic current detection is performed on all the electronic devices located in the noise-affected area to obtain the respective working current signal data of the electronic devices, and based on the respective reference working current floating ranges of all the electronic devices (that is, the floating range of the useful current signal intensity corresponding to the normal operation of the electronic device), the working current signal data is identified and analyzed to determine the interference current noise intensity and duration information of all the electronic devices. Moreover, based on the interference current noise state information, determine whether the interference current noise of the electronic device will submerge the useful current signal of the electronic device during a preset working cycle, so as to determine whether the electronic device is in an abnormal state, and based on the interference current noise intensity and frequency of the electronic device in the abnormal state, perform noise filtering processing on the electronic device in the abnormal state to ensure effective suppression of the interference current noise inside the electronic device in the abnormal state and reduce the probability of the electronic device failing to work and malfunctioning.

[0036] In another embodiment, the electronic device state judgment module is used to judge whether the electronic device in the abnormal state has returned to the normal state based on the noise filtering actual situation information of the electronic device in the abnormal state, including: Obtain the change information of the interference current noise intensity of the electronic device in the abnormal state during the noise filtering process, and based on the change information of the interference current noise intensity, judge whether the average intensity of the interference current noise of the electronic device in the abnormal state during the preset working cycle device is less than or equal to a preset intensity threshold; if so, determine that the electronic device in the abnormal state has returned to the normal state; if not, determine that the electronic device in the abnormal state has not returned to the normal state; The warning notification module is used to issue a malfunction warning notification for the new energy vehicle based on the locations of the electronic devices in the new energy vehicle that have not returned to the normal state, including: Estimate the probability of a fault occurring in the corresponding circuit in the new energy vehicle based on the circuit locations of all the electronic devices in the new energy vehicle that have not returned to the normal state; compare the fault occurrence probability with a threshold value to issue a malfunction warning notification for the new energy vehicle accordingly.

[0037] The beneficial effects of the above embodiments are as follows. In actual noise filtering processing, the noise filtering processing of some electronic devices in the abnormal state can effectively reduce and suppress the interference current noise inside the electronic devices, enabling the electronic devices to return to the normal state; while the noise filtering processing of some other electronic devices in the abnormal state cannot effectively reduce and suppress the interference current noise inside the electronic devices. At this time, the electronic devices in the abnormal state will continue to deteriorate in performance under the action of the interference current noise. These electronic devices that cannot return to the normal state will affect the normal operation of the circuit where they are located, thus causing some functions inside the new energy vehicle to malfunction. In order to accurately detect the malfunction situation inside the new energy vehicle, based on the change information of the interference current noise intensity of the electronic devices in the abnormal state during the noise filtering processing, determine whether the average interference current noise intensity of the electronic devices in the abnormal state within the preset working cycle is less than or equal to the preset intensity threshold, so as to accurately determine whether the electronic devices in the abnormal state have returned to the normal state. Also, based on the circuit locations of all the electronic devices in the new energy vehicle that have not returned to the normal state, determine the number of electronic devices in each functional circuit in the new energy vehicle that have not returned to the normal state, and estimate the probability of a fault occurring in this functional circuit accordingly. If the fault occurrence probability is greater than or equal to the preset probability threshold, issue a malfunction warning notification for the new energy vehicle, that is, send out a warning notification message containing the location information of the malfunctioning functional circuit, so as to facilitate timely and accurate circuit repair of the new energy vehicle.

[0038] Generally speaking, the inductance noise filtering detection and interference warning method and system for new energy vehicles detect the noise distribution characteristic information of all internal inductance components during the charging process of new energy vehicles, so as to determine the noise influence area inside the vehicle and locate the areas with relatively large noise interference intensity formed by all inductance components inside the vehicle under the excitation of charging current; also determine the interference noise state information of all electronic devices based on the respective working signal data of all electronic devices located in the noise influence area, so as to perform noise filtering processing on the electronic devices in abnormal states, reduce the noise interference of inductance components on electronic devices, and avoid failures of electronic devices; based on the actual noise filtering information of electronic devices, judge whether the electronic devices return to normal, and issue a warning notice for functional failure of the vehicle, accurately identify and timely warn the electronic devices that fail due to interference noise from inductance components inside the vehicle, and ensure the driving safety and reliability of the vehicle.

[0039] The above is only a specific embodiment of the present invention, and any improvements made on the premise of the present invention concept are regarded as the protection scope of the present invention.

Claims

1. A method for inductance noise filtering detection and interference warning of new energy vehicles, characterized in that, Including: Detect all inductive components inside a new energy vehicle during the charging process to determine the noise distribution characteristic information of each inductive component; Based on the noise distribution characteristic information of all inductive components, determine the noise influence area inside the new energy vehicle; Obtain the working signal data of all electronic devices located in the noise influence area, and analyze the working signal data to determine the interference noise state information of each electronic device; Based on the interference noise state information, determine the electronic devices in an abnormal state, and perform noise filtering processing on the electronic devices in an abnormal state; Based on the noise filtering actual situation information of the electronic devices in an abnormal state, determine whether the electronic devices in an abnormal state have returned to the normal state; Based on the positions of the electronic devices in the new energy vehicle that have not returned to the normal state, issue a function failure warning notice for the new energy vehicle.

2. The inductive noise filtering detection and interference warning method for a new energy vehicle according to claim 1, wherein: Detect all inductive components inside a new energy vehicle during the charging process to determine the noise distribution characteristic information of each inductive component; Based on the noise distribution characteristic information of all inductive components, determine the noise influence area inside the new energy vehicle, including: Based on the charging mode of the new energy vehicle, determine the detection operation parameters for all inductive components inside the new energy vehicle during the charging process; wherein, the detection operation parameters include the detection operation frequency and the detection operation sensitivity; Based on the detection operations on all inductive components, obtain the high-frequency noise intensity change information generated by each inductive component under the charging excitation; based on the high-frequency noise intensity change information, determine the spatial intensity distribution characteristic information of the high-frequency noise generated by each inductive component, and use this as the noise distribution characteristic information; wherein, the spatial intensity distribution characteristic information of the high-frequency noise is the intensity change characteristic information of the high-frequency noise intensity generated by the inductive component along the direction away from the inductive component; Based on the spatial intensity distribution characteristic information of the high-frequency noise generated by each inductive component, determine the superimposed noise intensity distribution information formed by the high-frequency noise generated by all inductive components inside the new energy vehicle; based on the superimposed noise intensity distribution information, determine the noise influence area inside the new energy vehicle; wherein, the average intensity of the high-frequency noise in the noise influence area is higher than the preset intensity threshold.

3. The inductive noise filtering detection and interference warning method for a new energy vehicle according to claim 1, wherein: Obtain the working signal data of all electronic devices located in the noise influence area, and analyze the working signal data to determine the interference noise state information of each electronic device; Based on the interference noise state information, determine the electronic devices in an abnormal state, and perform noise filtering processing on the electronic devices in an abnormal state, including: Periodically detect the current of all electronic devices located within the noise - affected area to obtain the operating current signal data of each of the electronic devices; based on the reference operating current floating range of each of the electronic devices, identify and analyze the operating current signal data to determine the interference current noise status information of each of the electronic devices; wherein, the interference current noise status information includes the interference current noise intensity and duration information of the electronic device during operation. Based on the interference current noise status information, determine whether the interference current noise of the electronic device will submerge the useful current signal of the electronic device during a preset operating cycle; if so, determine that the electronic device is in an abnormal state; if not, determine that the electronic device is not in an abnormal state; based on the interference current noise intensity and frequency of the electronic device in the abnormal state, perform noise filtering processing on the electronic device in the abnormal state.

4. The inductance noise filtering detection and interference warning method for a new - energy vehicle according to claim 1, wherein: Based on the noise filtering actual - situation information of the electronic device in the abnormal state, determine whether the electronic device in the abnormal state has returned to the normal state. Based on the locations of the electronic devices in the new - energy vehicle that have not returned to the normal state, issue a warning notice for functional failure of the new - energy vehicle, including: Obtain the change information of the interference current noise intensity of the electronic device in the abnormal state during the noise filtering process, and based on the change information of the interference current noise intensity, determine whether the average interference current noise intensity of the electronic device in the abnormal state during the preset operating cycle device is less than or equal to a preset intensity threshold; if so, determine that the electronic device in the abnormal state has returned to the normal state; if not, determine that the electronic device in the abnormal state has not returned to the normal state. Based on the circuit locations of all the electronic devices in the new - energy vehicle that have not returned to the normal state, estimate the probability of a fault occurring in the corresponding circuit in the new - energy vehicle; compare the probability of the fault occurrence with a threshold value to issue a warning notice for functional failure of the new - energy vehicle.

5. The inductance noise filtering detection and interference warning method for a new - energy vehicle according to claim 1, wherein: It further includes evaluating the health status and calculating the power loss of all the inductance elements inside the new - energy vehicle during charging, and controlling the input power of the new - energy vehicle during charging according to the results of the health status evaluation and the power loss calculation. Step S1, use the following formula (1) to evaluate the health status of the inductance elements of the new - energy vehicle. In the above formula (1), represents the health state value of the th inductor element; represents the DC resistance of the th inductor element; represents the inductance value of the th inductor element; represents the additional aging factor of the th inductor element, which characterizes the deterioration speed of the th inductor element over time. The larger it is, the greater the deterioration speed of the th inductor element over time; represents the attenuation coefficient of the th inductor element; represents the temperature coefficient of the th inductor element; represents the current intensity of the th inductor element at moment; represents the imaginary unit, which characterizes the phase difference in an AC circuit; represents the frequency of the AC signal, usually expressed in radians per second; represents moment; represents the magnitude of the current value of the th inductor element at moment; Step S2, use the following formula (2) to calculate the power loss of the inductance elements of the new - energy vehicle. In the above formula (2), represents the total power loss of all inductive elements in the system; represents the total number of all inductive elements; represents the loss factor of the Step S3, use the following formula (3) to generate a dynamic control strategy for the new - energy vehicle during charging according to the results of the health status evaluation and the power loss calculation. In the above formula (3), represents the charging control strategy value at a moment, that is, the charging efficiency adjustment control value; represents the input power at a moment; represents the charging adjustment coefficient; represents the natural constant; represents the adjustment factor of the influence of the state of health on the charging efficiency; represents the time decay factor, which characterizes the influence coefficient of time on the charging efficiency; represents the average value of the state of health values of all inductance components, which is obtained by calculating the average value of the state of health evaluation results of all inductance components calculated by the above formula (1); If is greater than 0.5, increase the input power during charging of the new energy vehicle; If is less than or equal to 0.5, reduce the input power when the new energy vehicle is charging.

6. The inductance noise filtering detection and interference warning system for new energy vehicles is characterized in that, Including: An inductance element noise detection module for detecting all the inductance elements inside the new - energy vehicle during charging to determine the noise distribution characteristic information of each of the inductance elements. A noise impact area determination module, configured to determine a noise impact area inside the new energy vehicle based on the noise distribution characteristic information of all inductive components; An interference noise state determination module, configured to obtain the respective operating signal data of all electronic devices located within the noise impact area, and analyze the operating signal data to determine the respective interference noise state information of all electronic devices; A noise filtering processing module, configured to determine electronic devices in an abnormal state based on the interference noise state information, and perform noise filtering processing on the electronic devices in the abnormal state; An electronic device state judgment module, configured to judge whether the electronic devices in the abnormal state have returned to the normal state based on the noise filtering actual situation information of the electronic devices in the abnormal state; A warning notification module, configured to perform a function failure warning notification on the new energy vehicle based on the locations of the electronic devices that have not returned to the normal state inside the new energy vehicle.

7. The inductive noise filtering detection and interference warning system for a new energy vehicle according to claim 6, wherein: The inductive component-generated noise detection module is configured to detect all inductive components inside the new energy vehicle during the charging process, and determine the respective noise distribution characteristic information of all inductive components, including: Based on the charging mode of the new energy vehicle, determine the detection operation parameters for all inductive components inside the new energy vehicle during the charging process; wherein, the detection operation parameters include the detection operation frequency and the detection operation sensitivity; Based on the detection operations on all inductive components, obtain the respective high-frequency noise intensity change information generated by all inductive components under the charging excitation; based on the high-frequency noise intensity change information, determine the spatial intensity distribution characteristic information of the high-frequency noise generated by all inductive components, and use this as the noise distribution characteristic information; wherein, the spatial intensity distribution characteristic information of the high-frequency noise is the intensity change characteristic information of the high-frequency noise intensity generated by the inductive component along the direction away from the inductive component under the charging excitation; The noise impact area determination module is configured to determine the noise impact area inside the new energy vehicle based on the noise distribution characteristic information of all inductive components, including: Based on the spatial intensity distribution characteristic information of the high-frequency noise generated by all inductive components respectively, determine the superimposed noise intensity distribution information formed by the high-frequency noise generated by all inductive components inside the new energy vehicle; based on the superimposed noise intensity distribution information, determine the noise impact area inside the new energy vehicle; wherein, the average intensity of the high-frequency noise within the noise impact area is higher than a preset intensity threshold.

8. The inductive noise filtering detection and interference warning system for a new energy vehicle according to claim 6, wherein: The interference noise state determination module is configured to obtain the respective operating signal data of all electronic devices located within the noise impact area, and analyze the operating signal data to determine the respective interference noise state information of all electronic devices, including: Periodically detect the current of all electronic devices located within the noise - affected area to obtain the working current signal data of each of the electronic devices; based on the reference working current floating range of each of the electronic devices, identify and analyze the working current signal data to determine the interference current noise status information of each of the electronic devices; wherein, the interference current noise status information includes the interference current noise intensity and duration information of the electronic device during operation. The noise filtering processing module is used to determine the electronic devices in an abnormal state based on the interference noise status information and perform noise filtering processing on the electronic devices in an abnormal state, including: Based on the interference current noise status information, determine whether the interference current noise of the electronic device will submerge the useful current signal of the electronic device during a preset working cycle; if so, determine that the electronic device is in an abnormal state; if not, determine that the electronic device is not in an abnormal state; based on the interference current noise intensity and frequency of the electronic device in an abnormal state, perform noise filtering processing on the electronic device in an abnormal state.

9. The inductance noise filtering detection and interference warning system for a new - energy vehicle according to claim 6, wherein: The electronic device state judgment module is used to judge whether the electronic device in an abnormal state has returned to a normal state based on the noise filtering actual - situation information of the electronic device in an abnormal state, including: Obtain the change information of the interference current noise intensity of the electronic device in an abnormal state during the noise filtering process, and based on the change information of the interference current noise intensity, judge whether the average interference current noise intensity of the electronic device in an abnormal state during the preset working cycle is less than or equal to a preset intensity threshold; if so, determine that the electronic device in an abnormal state has returned to a normal state; if not, determine that the electronic device in an abnormal state has not returned to a normal state. The warning notification module is used to give a warning notification of functional failure to the new - energy vehicle based on the location of the electronic devices in the new - energy vehicle that have not returned to a normal state, including: Based on the circuit positions of all the electronic devices in the new - energy vehicle that have not returned to a normal state, estimate the probability of a fault occurring in the corresponding circuit in the new - energy vehicle; compare the probability of the fault occurrence with a threshold value to give a warning notification of functional failure to the new - energy vehicle.

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