CN220438438U - Surge detection device and vehicle - Google Patents

Abstract

The application discloses surge detection device and vehicle, the device includes: and the analog front end acquisition chip and the processing module. The analog front end acquisition chip is used for being connected with the high-voltage system and acquiring single voltage data of the high-voltage system; the processing module is connected with the analog front end acquisition chip and is used for acquiring the single voltage data and carrying out surge detection on the high-voltage system according to the single voltage data. By adopting the device, the health state of the loop of the high-voltage system is obtained by carrying out surge detection on the high-voltage system in real time, so that the working safety and reliability of the high-voltage system are improved.

Description

Surge detection device and vehicle

Technical Field

The present application relates to the field of electronics technology, and more particularly, to a surge detection device and a vehicle.

Background

With the development of science and technology, electronic devices are increasingly used, functions of the electronic devices are more and more, and requirements of users on use safety and reliability of the electronic devices are higher and higher. As the construction of electronic devices becomes more and more complex, particularly integrated circuits, high frequency communications, and industrial automation, device protection becomes more and more important, there is a challenge in the related art to detect surges of electronic devices.

Disclosure of Invention

In view of the above problems, an embodiment of the present application provides a surge detection device and a vehicle.

In a first aspect, an embodiment of the present application provides a surge detection device, including: and the analog front end acquisition chip and the processing module. The analog front end acquisition chip is used for being connected with the high-voltage system and acquiring single voltage data of the high-voltage system; the processing module is connected with the analog front end acquisition chip and is used for acquiring the single voltage data and carrying out surge detection on the high-voltage system according to the single voltage data.

In one embodiment, the analog acquisition front end chip comprises a MC33771 chip.

In one embodiment, the analog acquisition front-end chip includes a plurality of acquisition channels, the plurality of acquisition channels are respectively connected with the processing module, and the processing module is configured to respectively receive the monomer voltage data of the high-voltage system acquired by the plurality of acquisition channels, and perform surge detection on the high-voltage system according to the monomer voltage data of the high-voltage system acquired by the plurality of acquisition channels.

In one embodiment, the plurality of collecting channels include a first collecting channel, a second collecting channel and a third collecting channel, and the electronic switch corresponding to the first collecting channel and the electronic switch corresponding to the second collecting channel are closed under the condition that the high-voltage system has a surge; the processing module is respectively connected with the first acquisition channel, the second acquisition channel and the third acquisition channel, and is used for acquiring first single voltage data of the high-voltage system acquired by the first acquisition channel, acquiring second single voltage data of the high-voltage system acquired by the second acquisition channel and acquiring third single voltage data of the high-voltage system acquired by the third acquisition channel, determining that the high-voltage system has a surge according to the first single voltage data, the second single voltage data and the third single voltage data, and determining that the high-voltage system has the surge when the abnormal restorability of the high-voltage system is determined to be unrecoverable according to the first single voltage data and the second single voltage data, wherein the abnormal restorability comprises unrecoverable or restorable.

In one embodiment, the analog acquisition front end chip further includes a communication module, where the communication module is connected to the processing module and is configured to transmit the monomer voltage data to the processing module.

In one embodiment, the surge detection device further includes a surge protection module, where the surge protection module is connected to the processing module, and is configured to suppress a spike voltage of a surge when the processing module determines that the high voltage system has the surge.

In one embodiment, the surge detection device further includes a surge alarm module, the surge alarm module is connected with the processing module, and the processing module is configured to generate a surge fault prompt and send the surge fault prompt to the surge alarm module for output when it is determined that the high-voltage system has a surge.

In one embodiment, the processing module is configured to connect to a vehicle-mounted communication device, and send surge fault data to the vehicle-mounted communication device when it is determined that a surge exists in the high-voltage system.

In one embodiment, the processing module is configured to be connected to a cloud end, and is configured to send an occurrence time corresponding to a surge to the cloud end when it is determined that the high voltage system has the surge, so as to instruct the cloud end to generate a surge period corresponding to the high voltage system based on the occurrence time.

In a second aspect, an embodiment of the present application provides a vehicle, which includes a high-voltage system and the surge detection device described in the first aspect above.

According to the scheme, the surge detection device is connected with a high-voltage system through an analog front-end acquisition chip and acquires single voltage data of the high-voltage system; the processing module is connected with the analog front end acquisition chip and is used for acquiring the single voltage data, carrying out surge detection on the high-voltage system according to the single voltage data, further carrying out surge detection on the high-voltage system in real time to acquire the health state of a loop of the high-voltage system, and improving the working safety and reliability of the high-voltage system.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 shows a block diagram of a surge detection device according to an embodiment of the present application;

FIG. 2 is a schematic circuit diagram of an analog front end acquisition chip according to an embodiment of the present application;

FIG. 3 shows a block diagram of a surge detection device according to an embodiment of the present application;

FIG. 4 shows a block diagram of a surge detection device according to an embodiment of the present application;

FIG. 5 shows a block diagram of a surge detection device according to an embodiment of the present application;

FIG. 6 shows a block diagram of a surge detection device according to an embodiment of the present application;

FIG. 7 shows a block diagram of a surge detection device according to an embodiment of the present application;

FIG. 8 illustrates a workflow diagram of a processing module provided in an embodiment of the present application;

fig. 9 shows a block diagram of a vehicle according to another embodiment of the present application.

Detailed Description

In order to enable those skilled in the art to better understand the present application, the following description will make clear and complete descriptions of the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application.

With the development of science and technology, attention is paid to environmental protection of vehicles. Because electric automobile compares more environmental protection than traditional fuel car, consequently, electric automobile has received the favor of more and more people, and correspondingly, people are to the higher requirement of electric automobile's security and reliability.

In the related art, compared with a fuel vehicle, the electric vehicle uses a power battery as an energy storage device and is driven by a driving motor, and correspondingly, a high-voltage and high-current signal exists in a power system of the electric vehicle and the working condition is relatively loaded. In addition, because the electric equipment such as a motor, a compressor and the like included in the electric vehicle is an inductive load, more bypass capacitors exist on each circuit included in the electric vehicle, and more parasitic parameters exist at the same time. Based on the above, when the high-voltage system included in the electric vehicle works or when the electric vehicle has abnormal working conditions, abnormal voltage pulse or current pulse signals can be generated, so that the problem that a circuit board of a battery management system (Battery Management System, BMS) ablates or the BMS signal is jumped is caused. The inventors have long studied that the above-mentioned related problems are all caused by surge in a high-voltage system.

Surge refers to extremely short overvoltage occurring in a power supply circuit, the sudden voltage can be increased to thousands of volts instantaneously, the influence on electronic equipment is destructive, the surge belongs to the conduction interference type problem in electric electromagnetic compatibility (Electro Magnetic Compatibility, EMC), and the influence is different according to different currents, voltages and energy; if the damage is small, abnormal fluctuation of signals or abnormal operation of the circuit can be caused, and if the damage is large, the circuit can be damaged. Therefore, the surge affects the normal operation of the circuit and even causes the circuit to be damaged, which causes quality problems, affects the experience of users and even jeopardizes the safety of the users.

In the related art, most of the surge of the whole vehicle is occasional and later failure, when problems occur, the circuit is often deteriorated, and most of the surge cannot be found in the design stage, so that the surge is difficult to stably reproduce and difficult to measure and analyze; in addition, other faults are caused by the surge interference, the root causes are deeper, the phenomenon misleading performance is stronger, and the analysis efficiency is low; and the whole vehicle does not have a special vehicle-mounted real-time surge detection scheme, and when a plurality of surges are generated, the real-time working condition information of the vehicle is not easy to monitor and trace.

Among them, surge testing is to simulate such overvoltage, and test equipment can withstand and cope with such voltage surge, so surge testing is very important for protecting products from power supply disturbance and damage. Accordingly, in the related art, there is a challenge of detecting a surge of an electronic device.

In view of the above problems, the inventors have long studied and found that a surge detection device and a vehicle provided in an embodiment of the present application, the device includes: and the analog front end acquisition chip and the processing module. The analog front end acquisition chip is used for being connected with the high-voltage system and acquiring single voltage data of the high-voltage system; the processing module is connected with the analog front end acquisition chip and is used for acquiring the single voltage data and carrying out surge detection on the high-voltage system according to the single voltage data. The device can acquire the single voltage data of the high-voltage system in real time, analyzes the single voltage data to acquire the surge condition of the high-voltage system, further acquires the health state of a loop of the high-voltage system, and improves the working safety and reliability of the high-voltage system. Therefore, by adopting the device, whether the surge exists in the high-voltage system is detected in real time, so that the safety and the reliability of the operation of the high-voltage system are improved.

Referring to fig. 1, fig. 1 shows a block diagram of a surge detection device according to an embodiment of the present application. The surge detection device 100 may be applied to an electronic apparatus including a high-voltage system, which may be an electronic apparatus including a high-voltage circuit such as an automobile, an aircraft, a ship, or the like. For example, the surge detection device 100 provided in the embodiment of the present application may be applied to an electric automobile including a high-voltage system.

The surge detection device 100 may include an analog front end acquisition chip 110 and a processing module 120. The analog front end acquisition chip 110 may be used to connect with a high voltage system and acquire the single voltage data of the high voltage system; the processing module 120 may be connected to the analog front end acquisition chip 110, and configured to acquire the single voltage data, and perform surge detection on the high voltage system according to the single voltage data.

In some embodiments, the analog front end acquisition chip 110 may include a plurality of acquisition channels, wherein the plurality of acquisition channels may be connected in series and respectively connected with the processing module 120; the processing module 120 may be configured to receive the single voltage data of the high voltage system collected by the multiple collecting channels, and perform surge detection on the high voltage system according to the single voltage data of the high voltage system collected by the multiple collecting channels.

Optionally, the plurality of collection channels may include a first collection channel, a second collection channel, and a third collection channel, wherein an electronic switch corresponding to the first collection channel and a corresponding electronic switch of the second collection channel are turned off in the presence of a surge in the high voltage system.

The processing module 120 may be respectively connected to the first collecting channel, the second collecting channel, and the third collecting channel, and configured to obtain first single voltage data of the high voltage system collected by the first collecting channel, obtain second single voltage data of the high voltage system collected by the second collecting channel, and obtain third single voltage data of the high voltage system collected by the third collecting channel, and determine that the high voltage system has a surge when the probability of the high voltage system having a surge is greater than a first threshold according to the first single voltage data, the second single voltage data, and the third single voltage data, and determine that the high voltage system has a surge when the abnormal restorability of the high voltage system is unrecoverable according to the first single voltage data and the second single voltage data. The exception restorability may include, among other things, unrecoverable or recoverable.

The analog front end acquisition chip 110 may further include a communication module, which may be connected to the processing module 120 and may be used to transmit the monomer voltage data to the processing module 120. The communication module may include a bus or the like.

In some embodiments, the analog front end acquisition chip 110 may further include a data conversion module, which may be respectively connected to the acquisition channel and the communication module included in the analog front end acquisition chip 110. The data conversion module may convert the electrical signal of the single voltage collected by the collection channel into single voltage data, and transmit the single voltage data to the processing module 120 through the communication module.

As one implementation, the Analog Front End acquisition chip 110 may include a MC33771 chip, where the MC33771 chip may be used as a lithium battery management chip Analog Front End (AFE). The MC33771 chip can be used as an analog sampling chip in the BMS system, and the MC33771 chip designs a 3-layer system structure, so that analog sampling of battery voltage, temperature, current and the like can be realized, and other functions of the system can be completed, which is not limited herein.

The MC33771 chip has a plurality of voltage sampling channels and high measurement accuracy in a wide temperature range, and an expensive digital isolator is omitted by adopting a daisy-chain communication mode. Wherein, 15 MC33771 chips can be hung on the BMS system for 1 time at most by adopting a daisy chain communication mode; wherein, each MC33771 chip can manage 14 strings of batteries, so that 1 controller can realize the management of 210 batteries through 1 daisy chain at most. And the overall operation and coordination of the system can be completed through 1 main controller among controllers included in the BMS system, the function of managing more batteries is realized, and the problem that the real-time processing capacity of the system is affected due to overlarge task quantity of a single controller can be avoided by adopting a master-slave controller combined mode.

The MC33771 chip can be composed of one or more circuit elements such as resistors, capacitors, electronic switches, diodes, converters, registers and the like. The MC33771 chip can be used as an analog acquisition front end of the BMS and comprises 14 paths of acquisition channels, and the 14 paths of acquisition channels can be used for acquiring single voltage to manage 14 strings of batteries. Among the 14 acquisition channels included in the MC33771 chip, the circuit design of one acquisition channel is different from the other 13 acquisition channels included in the 14 acquisition channels.

For example, please refer to fig. 2, which shows an internal circuit structure diagram of an analog front end acquisition chip according to an embodiment of the present application. Wherein, fig. 2 shows that a part of the acquisition channels in the 14-channel acquisition channels of the MC33771 chip comprise: acquisition channel CTref, acquisition channel CT1, acquisition channel CT2, acquisition channel CT3, acquisition channel CT4. The MC33771 chip may include circuit elements such as resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, resistor R6, resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, resistor R13, resistor R14, resistor R15, resistor R16, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor C10, bidirectional diode D1, bidirectional diode D2, bidirectional diode D3, bidirectional diode D4, bidirectional diode D5, electronic switch SW1, electronic switch SW2, electronic switch SW3, electronic switch SW4, field effect MOS transistor Q1, field effect MOS transistor Q2, level shifter, digital register, and data register.

The MC33771 chip shown in fig. 2 may sample the cell voltages of the battery cell1, the battery cell2, the battery cell3, and the battery cell 4. The MC33771 chip can convert the detected cell voltages of the battery cell1, the battery cell2, the battery cell3 and the battery cell4 into cell voltage data based on the converter. The individual voltage data may include a voltage value, a time corresponding to the voltage value, and the like, and is not limited herein.

It should be noted that, the circuit design of the acquisition channel CT1 is different from that of the other 13 acquisition channels, and when the external interference is too large, a voltage difference is generated between the G pole and the S pole of the MOS, so that the diagnostic MOS of the channel is turned off, and abnormal jitter occurs in the voltages of CT1 and CT 2. On the basis, as the MC33771 chip is an analog acquisition front-end chip which is mainstream in the BMS, when the circuit design is carried out, MOS control circuits in the CT1 and CT2 adopt different designs, and when external interference is large, abnormal deviation exists in the voltages of the CT1 and CT2 channels; correspondingly, the MC33771 chip can transmit the single voltage data collected by the collection channel to the processing module 120, so as to report the fault related to the single voltage abnormality.

The processing module 120 may analyze the single voltage data, where a significant feature gap exists between a CT1& CT2 fault caused by a surge and a CT1 and CT2 voltage jitter fault caused by other faults; correspondingly, the processing module 120 can analyze the single voltage data collected by each collecting channel of the MC33771 chip to judge whether the surge exists in the high-voltage system.

The differences between the CT1 and CT2 faults caused by the surge and the CT1 and CT2 voltage jumping faults caused by other faults include: due to the circuit characteristics, when a surge occurs, due to the fact that SW1 is closed, corresponding to the single voltage data collected by each collecting channel of the MC33771 chip, only the voltages of the collecting channels CT1 and CT2 fluctuate, and the voltages of the other 12 collecting channels cannot be abnormal. In addition, because the surge abnormality can be recovered, when the surge disappears, the corresponding CT1 and CT2 voltage jumping faults also disappear, and the faults such as short circuit, open circuit and the like have durability, so the surge and other faults are obviously different in time. Based on this, the processing module 120 may analyze the monomer voltage data of the analog front end acquisition chip 110 to determine whether a surge exists in the high voltage system based on the difference and the related software policy.

It can be understood that the acquisition channels CT1& CT2 included in the MC33771 chip are utilized to detect the single voltage jump fault, and the data analysis logic can be newly added in the processing module 120 connected with the MC33771 chip to analyze and check the single voltage jump data, so as to determine whether a surge exists in the high voltage system, and based on the derivative design of the existing hardware scheme, only a software strategy is added, so that the cost of surge detection is reduced.

In some embodiments, please refer to fig. 3, which shows a block diagram of a surge detection device according to an embodiment of the present application. The surge detection device 100 may further include a surge protection module 130, where the surge protection module 130 may be connected to the processing module 120 and may be used to suppress a spike voltage of the surge when the processing module 120 determines that the high voltage system has the surge. The surge protection module 130 may be composed of one or more circuit elements such as a capacitor and an inductor, which are not limited herein.

In some embodiments, please refer to fig. 4, which shows a block diagram of a surge detection device according to an embodiment of the present application. The surge detection device 100 may further include a surge alarm module 140, where the surge alarm module 140 may be connected to the processing module 120, and the processing module 120 may be configured to generate a surge fault prompt and send the surge fault prompt to the surge alarm module 140 for output when it is determined that a surge exists in the high voltage system.

The processing module 120 may analyze the single voltage data to determine whether a surge exists in the high voltage system, and if it is determined that the surge exists in the high voltage system, a surge fault prompt may be generated and sent to the surge alarm module 140 for output, so as to perform the surge fault prompt. The surge fault prompting mode can be modes such as indication lamp indication, buzzing prompting, text prompting and the like, and is not limited herein; correspondingly, a user can conduct targeted surge analysis according to the surge fault prompt, and the safety and reliability of the high-voltage system are improved.

In some embodiments, please refer to fig. 5, which shows a block diagram of a surge detection device according to an embodiment of the present application. The processing module 120 may be further configured to connect to a cloud, and send an occurrence time corresponding to the surge to the cloud when it is determined that the high voltage system has the surge, so as to instruct the cloud to generate a surge period corresponding to the high voltage system based on the occurrence time.

In some embodiments, the processing module 120 may record the single voltage data in real time, and accordingly, when the processing module 120 analyzes the single voltage data to determine that there is a surge in the high voltage system, the surge may also be analyzed in a retrospective manner. Wherein, voltage fluctuation in the single voltage data is generated and recovered along with faults; correspondingly, the processing module 120 can determine the voltage fluctuation moment as the surge generation moment according to the single voltage data, and can also output the real-time working condition of the high-voltage system according to the single voltage data, so that a user can analyze and check the surge conveniently, the working safety and reliability of the high-voltage system are improved, and the experience of the user is improved.

The processing module 120 is connected to the cloud end, and can send the surge data captured in real time to the cloud end; the surge data may include a time of occurrence, a time of end of the surge, an operating state of the high-voltage system when the surge occurs, and the like. The cloud can carry out traceability analysis on the surge according to the surge data, and can generate a surge period corresponding to the high-voltage system based on the surge data, so that a user can conveniently carry out subsequent surge investigation on the high-voltage system, and the accuracy of determining the surge generation reason of the user is improved.

It can be appreciated that, when the processing module 120 included in the surge detection device 100 determines that there is a surge in the high voltage system, a surge fault prompt is generated and sent to the surge alarm module 140 for outputting, so that a user performs fault detection on the high voltage system based on the surge fault prompt to find a hidden fault. In addition, the processing module 120 can capture the surge data of the high-voltage system in real time, and send the surge data to the cloud, so that the cloud can generate a surge case corresponding to the high-voltage system according to the surge data, the accuracy of the user in surge suppression of the high-voltage system is improved, and the information sharing property is also improved. Meanwhile, the surge state of the high-voltage system is detected in real time through the processing module 120 so as to check the health state of a high-voltage loop included in the high-voltage system, and the working safety and reliability of the high-voltage system are improved.

In some embodiments, please refer to fig. 6, which shows a block diagram of a surge detection device according to an embodiment of the present application. The processing module 120 may be configured to connect with an in-vehicle communication device and send surge fault data to the in-vehicle communication device when it is determined that a surge exists in the high voltage system. The vehicle-mounted communication device (Vehicular Communication Unit, VCU) can realize a core electronic control unit for whole vehicle control decision.

For example, please refer to fig. 7, which illustrates a flowchart of the operation of the surge detection device according to an embodiment of the present application. The surge detection device 100 (not shown in fig. 7) may be applied to a BMS having a surge detection of an electric vehicle high voltage system. The hardware portion corresponding to the BMS may include an analog front end acquisition chip 110MC33771 chip of the surge detection device 100, and the software portion corresponding to the BMS may include a processing module 120, such as a processor MCU, connected to the analog front end acquisition chip 110, for acquiring the monomer voltage data and performing surge detection on the high voltage system according to the monomer voltage data.

The MC33771 chip can be used for collecting single voltage data of the high-voltage system and transmitting the single voltage data to the processor MCU in the BMS through the bus. If a high-voltage abnormal surge enters the BMS and interferes with the MC33771 chip, the MC33771 chip may transmit abnormal data (e.g., single voltage data, etc.) to the processing module 120.

The processing module 120 may analyze and process the single voltage data after receiving the single voltage data detected by the MC33771 chip, and determine whether the single voltage data is caused by a surge, if so, may report a surge prompt and output surge fault information at the moment of a surge working condition to the vehicle-mounted communication device VCU connected with the BMS.

Referring to fig. 8 and 2, fig. 8 is a schematic workflow diagram of a processing module according to an embodiment of the present application. The processing module 120 may obtain the monomer voltage data of the abnormal monomer voltage of the high voltage system reported by the MC 33771; correspondingly, the processing module 120 can perform anomaly analysis on the single voltage data, can determine whether only the voltage data of CT1& CT2 is jumped, and can determine that the reason for the anomaly of the single voltage of the high voltage system is a non-surge if not only the voltage data of CT1& CT2 is jumped; if only the voltage data of CT1& CT2 is jumped, it can be determined that the probability of the surge existing in the high voltage system is greater than the first threshold. The processing module 120 may further determine whether the jitter generated by the voltage data of CT1& CT2 may be recovered, and if not, determine that the reason for the abnormality of the single voltage of the high voltage system is non-surge; if it can be recovered, it can be determined that there is a surge in the high voltage system. Wherein, the processing module 120 may generate and output a surge fault prompt; the processing module 120 may output surge time data of the high voltage system, such as a surge occurrence time, a surge recovery time, and the like.

It can be understood that the surge detection device 100 can detect whether a surge exists in the high-voltage system in real time, and share the surge information of the high-voltage system, so that the charging safety of the electric vehicle is improved; meanwhile, the health state of the whole high-voltage loop is checked in real time, and the safety and reliability of the electric automobile are improved.

Referring to fig. 9, fig. 9 shows a block diagram of a vehicle according to an embodiment of the present application, in which a vehicle 200 includes a surge detection device 100 and a high voltage system 210. The high voltage system 210 may include a high voltage loop formed by a high voltage load such as a power battery, a high voltage controller, a charging port, a driving motor, a motor controller, and an air conditioner compressor, which is not limited herein.

In the embodiments provided herein, the coupling of the modules of the vehicle 200 to each other may be electrical, mechanical, or other.

In addition, in the embodiment of the present application, each functional module of the vehicle 200 may be integrated into one processing module, or each module may exist alone physically, or two or more modules may be integrated into one module. The integrated modules may be implemented in hardware or in software functional modules.

It will be clearly understood by those skilled in the art that, for convenience and brevity of description, the operation of the surge detection device 100 for detecting a surge of the high voltage system 210 included in the vehicle 200 is described above, and reference may be made to the corresponding process of the surge detection device 100 in the foregoing embodiment, which is not repeated herein.

In summary, according to the surge detection device and the vehicle provided by the application, the surge detection device 100 is provided with the analog front end acquisition chip 110 and the processing module 120, and the analog front end acquisition chip 110 is used for being connected with a high-voltage system and acquiring single voltage data of the high-voltage system; the processing module 120 is connected to the analog front end acquisition chip 110, and is configured to obtain the single voltage data, perform surge detection on the high voltage system according to the single voltage data, and further perform surge detection on the high voltage system in real time to obtain the health status of the loop of the high voltage system, thereby improving the safety and reliability of the operation of the high voltage system.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, one of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not drive the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A surge detection device, characterized in that the surge detection device comprises:

the analog front end acquisition chip is used for being connected with a high-voltage system and acquiring single voltage data of the high-voltage system;

the processing module is connected with the analog front end acquisition chip and is used for acquiring the single voltage data and carrying out surge detection on the high-voltage system according to the single voltage data.

2. The surge detection device of claim 1, wherein the analog front end acquisition chip comprises a MC33771 chip.

3. The surge detection device of claim 1, wherein the analog front-end acquisition chip comprises a plurality of acquisition channels, the plurality of acquisition channels are respectively connected with the processing module, and the processing module is configured to respectively receive the single voltage data of the high-voltage system acquired by the plurality of acquisition channels, and perform surge detection on the high-voltage system according to the single voltage data of the high-voltage system acquired by the plurality of acquisition channels.

4. The surge detection device of claim 3, wherein the plurality of collection channels comprises a first collection channel, a second collection channel, and a third collection channel, wherein the electronic switch corresponding to the first collection channel and the electronic switch corresponding to the second collection channel are closed in the presence of a surge in the high voltage system;

the processing module is respectively connected with the first acquisition channel, the second acquisition channel and the third acquisition channel, and is used for acquiring first single voltage data of the high-voltage system acquired by the first acquisition channel, acquiring second single voltage data of the high-voltage system acquired by the second acquisition channel and acquiring third single voltage data of the high-voltage system acquired by the third acquisition channel, determining that the high-voltage system has a surge according to the first single voltage data, the second single voltage data and the third single voltage data, and determining that the high-voltage system has the surge when the abnormal restorability of the high-voltage system is determined to be unrecoverable according to the first single voltage data and the second single voltage data, wherein the abnormal restorability comprises unrecoverable or restorable.

5. The surge detection device of claim 1, wherein the analog front end acquisition chip further comprises a communication module, the communication module being coupled to the processing module for transmitting the monomer voltage data to the processing module.

6. The apparatus of claim 1, wherein the surge detection device further comprises a surge protection module coupled to the processing module for suppressing a spike voltage of a surge if the processing module determines that the high voltage system is in the presence of the surge.

7. The surge detection device of claim 1, further comprising a surge alarm module connected to the processing module, wherein the processing module is configured to generate a surge fault prompt and send the surge fault prompt to the surge alarm module for output if it is determined that a surge exists in the high voltage system.

8. The surge detection device of claim 1, wherein the processing module is configured to connect to an on-board communication device and send surge fault data to the on-board communication device if a surge is determined to exist in the high voltage system.

9. The apparatus of claim 1, wherein the processing module is configured to connect to a cloud end, and send an occurrence time corresponding to a surge to the cloud end when it is determined that the high voltage system has the surge, so as to instruct the cloud end to generate a surge period corresponding to the high voltage system based on the occurrence time.

10. A vehicle comprising a high voltage system and a surge detection device according to any one of claims 1-9.