CN109986966B - Electric automobile and monitoring system and monitoring method of high-voltage distribution box of electric automobile - Google Patents

Electric automobile and monitoring system and monitoring method of high-voltage distribution box of electric automobile Download PDF

Info

Publication number
CN109986966B
CN109986966B CN201711463263.6A CN201711463263A CN109986966B CN 109986966 B CN109986966 B CN 109986966B CN 201711463263 A CN201711463263 A CN 201711463263A CN 109986966 B CN109986966 B CN 109986966B
Authority
CN
China
Prior art keywords
distribution box
voltage distribution
voltage
monitoring
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201711463263.6A
Other languages
Chinese (zh)
Other versions
CN109986966A (en
Inventor
何秀龙
王颖
孟郭强
高堂芬
韩璐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changsha BYD Automobile Co Ltd
Original Assignee
Changsha BYD Automobile Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changsha BYD Automobile Co Ltd filed Critical Changsha BYD Automobile Co Ltd
Priority to CN201711463263.6A priority Critical patent/CN109986966B/en
Publication of CN109986966A publication Critical patent/CN109986966A/en
Application granted granted Critical
Publication of CN109986966B publication Critical patent/CN109986966B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/16Information or communication technologies improving the operation of electric vehicles

Abstract

The invention discloses a monitoring system and a monitoring method for an electric automobile and a high-voltage distribution box thereof, wherein the monitoring system comprises: the detection module is used for detecting working environment signals of the high-voltage distribution box, wherein the working environment signals comprise temperature signals in the high-voltage distribution box, working voltage signals and working current signals of each high-voltage device in the high-voltage distribution box and smoke concentration signals in the high-voltage distribution box; a communication module; and the main chip module is used for monitoring the high-voltage distribution box according to the working environment signal to generate monitoring information, and sending the monitoring information to the battery management system through the communication module so that the battery management system can adjust the control strategy of the electric automobile according to the monitoring information. The system can monitor and control the high-voltage distribution box in real time and send monitoring information to the battery management system, so that strategic control can be rapidly performed on faults when the high-voltage distribution box breaks down, the faults are controllable, and the safety of the whole vehicle is greatly improved.

Description

Electric automobile and monitoring system and monitoring method of high-voltage distribution box of electric automobile
Technical Field
The invention relates to the technical field of automobiles, in particular to a monitoring system of a high-voltage distribution box of an electric automobile, the electric automobile, a monitoring method of the high-voltage distribution box of the electric automobile and a non-transitory computer readable storage medium.
Background
The vehicle is an accelerator for economic development and is a main transportation tool for people. With the further shortage of energy sources and the increasing of pollution, new energy vehicles, such as electric vehicles, gradually replace traditional fuel vehicles to become the leading roles of vehicles under the driving of a large trend.
The most important power System of an electric vehicle is a power Battery, and as shown in fig. 1, the electric vehicle generally manages the power Battery through a Battery Management System (BMS), and controls the on/off of a high voltage switch device in a high voltage distribution box of the electric vehicle through the BMS, so as to control the operation of a high voltage load.
However, in the above manner, the BMS can only control the on/off of the high voltage switchgear in the high voltage distribution box according to a set control strategy and a given input amount, and cannot control the high voltage switchgear in the high voltage distribution box according to the specific conditions of the high voltage distribution box in real time, and cannot timely handle the high voltage distribution box when the high voltage distribution box has faults such as abnormal load operation, abnormal power supply of the entire vehicle system, and aging of electrical appliances, so that high voltage safety accidents such as equipment burnout and even fire may occur, and the safety of the entire vehicle is seriously affected.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the first objective of the present invention is to provide a monitoring system for a high voltage distribution box of an electric vehicle, which can monitor and control the high voltage distribution box in real time and send monitoring information to a battery management system, so that when the high voltage distribution box fails, the fault can be rapidly and strategically controlled, the fault can be controlled, and the safety of the entire vehicle is greatly improved.
The second purpose of the invention is to provide an electric automobile.
The third purpose of the invention is to provide a monitoring method of the high-voltage distribution box of the electric automobile.
A fourth object of the invention is to propose a non-transitory computer-readable storage medium.
In order to achieve the above object, a first embodiment of the present invention provides a monitoring system for a high voltage distribution box of an electric vehicle, including: the detection module is used for detecting working environment signals of the high-voltage distribution box, wherein the working environment signals comprise temperature signals in the high-voltage distribution box, working voltage signals and working current signals of each high-voltage device in the high-voltage distribution box and smoke concentration signals in the high-voltage distribution box; a communication module in communication with a battery management system of the electric vehicle; the main chip module is respectively connected with the detection module and the communication module, and is used for monitoring the high-voltage distribution box according to the working environment signal so as to generate monitoring information, and sending the monitoring information to the battery management system through the communication module, so that the battery management system can adjust the control strategy of the electric automobile according to the monitoring information.
According to the monitoring system of the high-voltage distribution box of the electric automobile, the detection module is used for detecting the working environment signal of the high-voltage distribution box, the communication module is communicated with the battery management system of the electric automobile, the main chip module monitors the high-voltage distribution box according to the working environment signal to generate monitoring information, and the communication module is used for sending the monitoring information to the battery management system, so that the battery management system can adjust the control strategy of the electric automobile according to the monitoring information. From this, this system can carry out real time monitoring and control to high tension switchgear to with monitoring information transmission to battery management system, thereby can make strategic control to the trouble rapidly when high tension switchgear breaks down, make the trouble controllable, greatly improved the security of whole car.
In addition, the monitoring system for the high-voltage distribution box of the electric vehicle provided by the embodiment of the invention can also have the following additional technical characteristics:
according to an embodiment of the present invention, the main chip module is further configured to determine whether the temperature in the high voltage distribution box is greater than or equal to a preset temperature threshold according to the temperature signal in the high voltage distribution box, generate a trigger signal when the temperature in the high voltage distribution box is greater than or equal to the preset temperature threshold, and send the trigger signal to the battery management system, so that the battery management system performs power reduction control on the electric vehicle.
According to an embodiment of the invention, the high-voltage distribution box comprises a fire extinguishing apparatus, wherein the main chip module is further configured to determine whether the smoke concentration in the high-voltage distribution box is greater than or equal to a preset smoke concentration threshold according to the smoke concentration signal, determine whether the temperature rise speed in the high-voltage distribution box is greater than or equal to a preset speed threshold according to the temperature signal in the high-voltage distribution box, and control the fire extinguishing apparatus to start when the temperature rise speed in the high-voltage distribution box is greater than or equal to the preset speed threshold and the smoke concentration in the high-voltage distribution box is greater than or equal to the preset smoke concentration threshold.
According to an embodiment of the present invention, the main chip module is further configured to monitor status information of each high-voltage device according to a temperature signal in the high-voltage distribution box, a working voltage signal and a working current signal of each high-voltage device in the high-voltage distribution box, and a smoke concentration signal in the high-voltage distribution box, and communicate with vehicle-mounted multimedia of the electric vehicle through the communication module, so as to prompt the status information of each high-voltage device through the vehicle-mounted multimedia.
According to an embodiment of the present invention, the monitoring system of the high voltage distribution box of the electric vehicle further includes a storage module, the storage module is connected to the main control chip module, and the storage module is configured to store the state information of each high voltage device, wherein the main chip module is further configured to monitor the storage capacity of the storage module, and control the storage module to erase the historical data when the storage capacity of the storage module is lower than a preset storage capacity.
According to an embodiment of the invention, the monitoring system of the high-voltage distribution box of the electric vehicle further includes a wireless data transmission module, the wireless data transmission module is connected to the main chip module, and the wireless data transmission module is configured to upload the state information of each high-voltage device in the high-voltage distribution box to a cloud database.
In order to achieve the above object, a second aspect of the present invention provides an electric vehicle, which includes the monitoring system for a high voltage distribution box of the electric vehicle according to the first aspect of the present invention.
According to the electric vehicle provided by the embodiment of the invention, the monitoring system of the high-voltage distribution box of the electric vehicle can be used for monitoring and controlling the high-voltage distribution box in real time and sending the monitoring information to the battery management system, so that the fault can be rapidly controlled in a strategic manner when the high-voltage distribution box breaks down, the fault can be controlled, and the safety of the whole vehicle is greatly improved.
In order to achieve the above object, a third aspect of the present invention provides a monitoring method for a high voltage distribution box of an electric vehicle, including the steps of: detecting a working environment signal of the high-voltage distribution box, wherein the working environment signal comprises a temperature signal in the high-voltage distribution box, a working voltage signal and a working current signal of each high-voltage device in the high-voltage distribution box, and a smoke concentration signal in the high-voltage distribution box; and monitoring the high-voltage distribution box according to the working environment signal to generate monitoring information, and sending the monitoring information to the battery management system so that the battery management system can adjust the control strategy of the electric vehicle according to the monitoring information.
According to the monitoring method of the high-voltage distribution box of the electric automobile, provided by the embodiment of the invention, the working environment signal of the high-voltage distribution box is detected, the high-voltage distribution box is monitored according to the working environment signal to generate monitoring information, and the monitoring information is sent to the battery management system, so that the battery management system adjusts the control strategy of the electric automobile according to the monitoring information. Therefore, the method can monitor and control the high-voltage distribution box in real time and send monitoring information to the battery management system, so that strategic control can be rapidly performed on faults when the high-voltage distribution box breaks down, the faults are controllable, and the safety of the whole vehicle is greatly improved.
In addition, the monitoring method for the high-voltage distribution box of the electric vehicle provided by the embodiment of the invention also has the following additional technical characteristics:
according to an embodiment of the present invention, the monitoring method for a high voltage distribution box of an electric vehicle further includes: judging whether the temperature in the high-voltage distribution box is greater than or equal to a preset temperature threshold value or not according to the temperature signal in the high-voltage distribution box; and if the temperature in the high-voltage distribution box is greater than or equal to a preset temperature threshold value, generating a trigger signal, and sending the trigger signal to the battery management system so that the battery management system can perform power reduction control on the electric automobile.
According to an embodiment of the present invention, the high voltage distribution box includes a fire extinguishing apparatus, and the monitoring method of the high voltage distribution box of the electric vehicle further includes: judging whether the smoke concentration in the high-voltage distribution box is greater than or equal to a preset smoke concentration threshold value or not according to the smoke concentration signal, and judging whether the temperature rising speed in the high-voltage distribution box is greater than or equal to a preset speed threshold value or not according to the temperature signal in the high-voltage distribution box; and if the temperature rising speed in the high-voltage distribution box is greater than or equal to a preset speed threshold value and the smoke concentration in the high-voltage distribution box is greater than or equal to a preset smoke concentration threshold value, controlling the fire extinguishing device to start.
According to an embodiment of the present invention, the monitoring method for a high voltage distribution box of an electric vehicle further includes: monitoring the state information of each high-voltage device according to the temperature signal in the high-voltage distribution box, the working voltage signal and the working current signal of each high-voltage device in the high-voltage distribution box and the smoke concentration signal in the high-voltage distribution box, so as to prompt the state information of each high-voltage device through the vehicle-mounted multimedia.
According to an embodiment of the present invention, the monitoring method for a high voltage distribution box of an electric vehicle further includes: storing the state information of each high-voltage device through a storage module; monitoring the storage capacity of the storage module, and controlling the storage module to erase historical data when the storage capacity of the storage module is lower than a preset storage capacity.
According to an embodiment of the present invention, the monitoring method for a high voltage distribution box of an electric vehicle further includes: and uploading the state information of each high-voltage device in the high-voltage distribution box to a cloud database.
In order to achieve the above object, a fourth aspect of the present invention provides a non-transitory computer-readable storage medium, on which a computer program is stored, the computer program, when being executed by a processor, implementing the monitoring method for the high-voltage distribution box of the electric vehicle according to the third aspect of the present invention.
The non-transitory computer-readable storage medium of the embodiment of the invention detects the working environment signal of the high-voltage distribution box, monitors the high-voltage distribution box according to the working environment signal to generate monitoring information, and sends the monitoring information to the battery management system, so that the battery management system adjusts the control strategy of the electric vehicle according to the monitoring information, thereby rapidly performing strategic control on the fault when the high-voltage distribution box has the fault, controlling the fault and greatly improving the safety of the whole vehicle.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which,
fig. 1 is a block diagram schematically illustrating a control principle of a high-voltage distribution box of an electric vehicle in the related art;
FIG. 2 is a block schematic diagram of a monitoring system for a high voltage distribution box of an electric vehicle according to one embodiment of the present invention;
FIG. 3 is a block schematic diagram of a monitoring system for a high voltage distribution box of an electric vehicle according to another embodiment of the present invention;
fig. 4 is a flowchart of a monitoring method of a high voltage distribution box of an electric vehicle according to an embodiment of the present invention;
fig. 5 is a flowchart of a monitoring method of a high voltage distribution box of an electric vehicle according to still another embodiment of the present invention; and
fig. 6 is a flowchart of a monitoring method of a high voltage distribution box of an electric vehicle according to still another embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The monitoring system of a high-voltage distribution box of an electric vehicle, the monitoring method of a high-voltage distribution box of an electric vehicle, and the non-transitory computer-readable storage medium according to the embodiments of the present invention are described below with reference to the drawings.
Fig. 2 is a block schematic diagram of a monitoring system for a high voltage distribution box of an electric vehicle according to one embodiment of the present invention. As shown in fig. 2, the monitoring system includes: a detection module 10, a communication module 20 and a main chip module 30.
The detection module 10 is configured to detect a working environment signal of the high voltage distribution box 100, where the working environment signal includes a temperature signal in the high voltage distribution box, a working voltage signal and a working current signal of each high voltage device in the high voltage distribution box, and a smoke concentration signal in the high voltage distribution box. The communication module 20 communicates with a battery management system of the electric vehicle. The main chip module 30 is connected to the detection module 10 and the communication module 20, respectively, and the main chip module 30 is configured to monitor the high voltage distribution box 100 according to the working environment signal to generate monitoring information, and send the monitoring information to the battery management system through the communication module 20, so that the battery management system adjusts the control strategy of the electric vehicle according to the monitoring information.
Specifically, as shown in fig. 2, the detection module 10 may include a current sampling unit 101, a voltage sampling unit 102, a temperature sampling unit 103, and a smoke detection unit 104. The current sampling unit 101 generates a stable working current signal after performing AD (Analog-to-Digital) conversion, filtering, and the like on a working current signal of each high-voltage device in the high-voltage distribution box acquired by the current sensor a, and transmits the stable working current signal to the main chip module 30. The voltage sampling unit 102 obtains the working voltage signal of each high-voltage device in the high-voltage distribution box collected by the voltage sensor V, performs AD conversion, filtering and other processing on the working voltage signal to generate a stable working voltage signal, and transmits the stable working voltage signal to the main chip module 30. The temperature sampling unit 103 obtains the temperature signal in the high voltage distribution box collected by the temperature sensor T, performs AD conversion and the like on the temperature signal, generates a stable temperature signal, and transmits the stable temperature signal to the main chip module 30. The smoke detection unit 104 obtains the smoke concentration signal in the high voltage distribution box detected by the smoke sensor SD, performs AD conversion on the smoke concentration signal, generates a stable smoke concentration signal, and transmits the stable smoke concentration signal to the main chip module 30. The current sensor a, the voltage sensor V and the temperature sensor T may be connected to a collection point, which needs to be collected, in the high voltage distribution box 100 by using a circular hole terminal. The smoke sensor SD is installed inside the high voltage distribution box 100.
The communication module 20 is connected to the battery management system through a twisted pair or a shielded wire at one end, and is connected to the main chip module 30 in a port configuration at the other end, mainly playing a role in information interaction between the main chip module 30 and the battery management system. The main chip module 30 receives the working current signal of each high-voltage device in the high-voltage distribution box collected by the current sampling unit 101, the working voltage signal of each high-voltage device in the high-voltage distribution box collected by the voltage sampling unit 102, the temperature signal in the high-voltage distribution box collected by the temperature sampling unit 103, and the smoke concentration signal in the high-voltage distribution box collected by the smoke detection unit 104, and monitors the working current signal, the working voltage signal, the temperature signal and the smoke concentration signal, and feeds back to the battery management system in real time through a Controller Area Network (CAN) bus, so that the battery management system adjusts the control strategy of the electric automobile according to the working current signal, the working voltage signal, the temperature signal and the smoke concentration signal, meanwhile, the main chip module 30 may also control the high-voltage device in the high-voltage distribution box according to the working current signal, the working voltage signal, the temperature signal, and the smoke concentration signal. For example, when the electric vehicle is started, the detection module 10 detects a working environment signal of the high voltage distribution box 100 in real time, and the main chip module 30 performs calculation, comparison, and other processing according to the working environment signal and generates monitoring information to determine whether the working environment of the high voltage distribution box 100 is normal. If the main chip module 30 determines that the working environment of the high voltage distribution box 100 is normal, the main chip module 30 may control the high voltage devices in the high voltage distribution box 100 according to the user instruction and the vehicle control strategy. The main chip module 30 CAN also send the monitoring information to the whole vehicle CAN bus through the communication module 20, and the battery management system CAN timely adjust the control strategy of the electric vehicle by acquiring the monitoring information on the CAN bus, for example, if the battery management system judges that the temperature in the high-voltage distribution box 100 is too high according to the monitoring information, the battery management system performs power reduction control on the electric vehicle so as to prevent the temperature of the high-voltage distribution box from continuously rising and improve the safety of the whole vehicle. From this, this system can carry out real time monitoring and control to high tension switchgear to with monitoring information transmission to battery management system, thereby can make strategic control to the trouble rapidly when high tension switchgear breaks down, make the trouble controllable, greatly improved the security of whole car.
Certainly, the monitoring system of the high-voltage distribution box of the electric automobile according to the embodiment of the invention can be integrated in the high-voltage distribution box, so that wiring is convenient, wiring harnesses are saved, the requirement of light weight is met, and meanwhile, the integration of the power distribution function and the safety monitoring function of the high-voltage distribution box is realized.
It is understood that, as shown in fig. 2, the high voltage devices in the high voltage distribution box 100 may include a relay K1, a Fuse, a high voltage Load, a maintenance switch K2, and the like.
According to an embodiment of the present invention, the main chip module 30 is further configured to determine whether the temperature inside the high voltage distribution box 100 is greater than or equal to a preset temperature threshold according to the temperature signal inside the high voltage distribution box, generate a trigger signal when the temperature inside the high voltage distribution box 100 is greater than or equal to the preset temperature threshold, and send the trigger signal to the battery management system, so that the battery management system performs power reduction control on the electric vehicle. The preset temperature threshold value can be preset according to actual conditions.
Specifically, after the electric vehicle is started, the main chip module 30 further determines whether the temperature in the high voltage distribution box 100 is greater than or equal to a preset temperature threshold according to the temperature signal in the high voltage distribution box, and if so, the main chip module 30 generates a trigger signal and sends the trigger signal to the battery management system through the communication module 20. After receiving the trigger signal, the battery management system limits the output voltage of the power battery of the electric automobile so as to reduce the power of the automobile and enable the automobile to run under a low working condition. And after the temperature in the high-voltage distribution box is reduced to the normal temperature, namely when the temperature in the high-voltage distribution box is smaller than a preset temperature threshold value, the battery management system controls the output voltage of the power battery according to a normal control strategy.
According to an embodiment of the present invention, as shown in fig. 3, the hv power distribution box 100 may further include a fire extinguishing device FE. The main chip module 30 may also be configured to determine whether the smoke concentration in the high voltage distribution box is greater than or equal to a preset smoke concentration threshold according to the smoke concentration signal, determine whether the temperature rising speed in the high voltage distribution box is greater than or equal to a preset speed threshold according to the temperature signal in the high voltage distribution box, and control the fire extinguishing apparatus to start when the temperature rising speed in the high voltage distribution box is greater than or equal to the preset speed threshold and the smoke concentration in the high voltage distribution box is greater than or equal to the preset smoke concentration threshold. The preset smoke concentration threshold value and the preset speed threshold value can be preset according to actual conditions.
Specifically, if main chip module 30 judges smoke concentration signal more than or equal to according to smoke concentration signal and predetermines the smoke concentration threshold value, and judges the temperature rising speed more than or equal to of high voltage distribution box according to temperature signal and predetermine the speed threshold value, explains that high voltage distribution box has the risk of catching fire, and main chip module 30 controls extinguishing device FE and starts to put out a fire to the block terminal, improves the security of whole car.
It should be noted that, in the embodiment of the present invention, the monitoring system is powered by a 24V battery of the entire vehicle, and the monitoring system is in a working state as soon as the entire vehicle is powered on. Before the whole vehicle is not input (without a high-voltage instruction) or does not run, the main chip module 30 firstly needs to inspect whether a smoke concentration signal collected by a smoke sensor exists or not and then a temperature signal collected by a temperature sensor so as to judge whether the high-voltage distribution box 100 is abnormal or not before being electrified but without starting high voltage, and if the temperature rising speed in the high-voltage distribution box is greater than or equal to a preset speed threshold value and the smoke concentration in the high-voltage distribution box is greater than or equal to a preset smoke concentration threshold value, the main chip module 30 sends an instruction for forbidding starting to a battery management system. When the whole vehicle is charged, whether the high-voltage distribution box 100 is abnormal or not is judged according to the smoke concentration signal and the temperature signal, and if the temperature rising speed in the high-voltage distribution box is greater than or equal to the preset speed threshold and the smoke concentration in the high-voltage distribution box is greater than or equal to the preset smoke concentration threshold, the main chip module 30 controls the fire extinguishing device FE to be started. If the high-voltage distribution box 100 has no fire risk, that is, the temperature rising speed in the high-voltage distribution box is less than the preset speed threshold and/or the smoke concentration in the high-voltage distribution box is less than the preset smoke concentration threshold, the main chip module 30 controls the high-voltage device in the high-voltage distribution box 100 according to the user instruction and the vehicle control strategy.
According to an embodiment of the present invention, the main chip module 30 is further configured to monitor the status information of each high-voltage device according to the temperature signal in the high-voltage distribution box, the working voltage signal and the working current signal of each high-voltage device in the high-voltage distribution box, and the smoke concentration signal in the high-voltage distribution box, and communicate with the vehicle-mounted multimedia of the electric vehicle through the communication module to prompt the status information of each high-voltage device through the vehicle-mounted multimedia.
Specifically, the main chip module 30 may monitor the state information of each high-voltage device according to a temperature signal in the high-voltage distribution box, a working voltage signal and a working current signal of each high-voltage device in the high-voltage distribution box, and a smoke concentration signal in the high-voltage distribution box, and determine whether the high-voltage distribution box 100 has a fault. For example, the main chip module 30 may analyze whether a contact of the relay is aged or not according to the working voltage signal and the working current signal of each relay in the high voltage distribution box 100, may also analyze whether the relay is sintered or fused, and generates related fault information, and then communicates with the vehicle-mounted multimedia through the communication module 20, and displays the fault information on a vehicle-mounted display screen or an instrument panel through the vehicle-mounted multimedia, so as to prompt a customer to perform regular maintenance, thereby improving the safety and reliability of the vehicle. For another example, the main chip module 30 may determine whether the high voltage distribution box 100 has a fire risk according to the temperature signal and the smoke concentration signal, if the temperature rising speed in the high voltage distribution box is greater than or equal to the preset speed threshold and the smoke concentration in the high voltage distribution box is greater than or equal to the preset smoke concentration threshold, the main chip module 30 determines that the high voltage distribution box 100 has the fire risk, the main chip module 30 generates related fault information and sends the prompt information to the vehicle-mounted multimedia through the communication module 20, the vehicle-mounted multimedia controls the vehicle-mounted display, the instrument panel, the buzzer or the like to send the prompt information according to the fault information so as to prompt the user, and the user may make related prevention or remedial measures according to the prompt information so as to avoid further expansion of the fault and improve the safety of the entire vehicle.
After the high voltage distribution box 100 breaks down, in the process of finding the cause of the fault, a field simulation test is often required, and the cause of the fault can be found out only by consuming huge manpower and material resources. To this end, in an embodiment of the present invention, as shown in fig. 3, the monitoring system of the high voltage distribution box of the electric vehicle may further include: a storage module 40. The storage module 40 is connected to the main control chip module 30, and the storage module 40 is configured to store state information of each high-voltage device, where the main chip module 30 is further configured to monitor a storage capacity of the storage module 40, and control the storage module 40 to erase historical data when the storage capacity of the storage module 40 is lower than a preset storage capacity. The preset storage capacity may be preset according to the actual storage capacity of the storage module 40.
Specifically, the storage module 40 is an erasable memory module, and can record the temperature signal in the high voltage distribution box, the working voltage signal and the working current signal of each high voltage device in the high voltage distribution box, the smoke concentration signal in the high voltage distribution box, and other related signals in real time, when a high voltage device in the high voltage distribution box 100 fails, a related technician only needs to obtain data in the storage module 40 and then analyze the data, so that the cause of the failure can be identified at the first time, and the operations such as testing and testing are not needed, so that the missing of the best chance for removing the failure is prevented.
In the running process of a vehicle, when a fault occurs, the fault is unpredictable, the storage module 40 can record data of a temperature signal in the high-voltage distribution box, a working voltage signal and a working current signal of each high-voltage device in the high-voltage distribution box, and a smoke concentration signal in the high-voltage distribution box in real time, when the main control chip module 30 judges that the high-voltage distribution box 100 has the fault according to the signals, the main control chip module 30 extracts a fault waveform into an EPROM (Erasable Programmable Read Only Memory) of the storage module 40, and for unnecessary data (mainly data which are not recorded at the fault moment), the main chip module 30 can control the storage module 40 to erase historical data sequentially when the storage capacity of the storage module 40 is lower than a preset storage capacity.
For example: the storage module 40 records a section of 20s waveform from 0s, the fault occurs at 10s, the main chip module 30 intercepts 5s to 15s waveform, stores the waveform as fault data, extracts the fault data into an EPROM, provides analysis data for after sale, and erases the fault data. Unnecessary data is data between 0s and 5s and between 15s and 20s, and when the main chip module 30 determines that the remaining storage capacity of the storage module 40 is lower than the preset storage capacity, unnecessary history data in the storage module 40 is sequentially erased. The length of the main chip module 30 to intercept useful fault data should be determined based on the specific control strategy for each circuit in the hv power distribution box 100. The storage module 40 may communicate with a vehicle-mounted display screen and a USB (Universal Serial Bus) interface via a CAN Bus, directly display the fault information, and inform a driver of correct operation. Relevant staff can directly carry out data extraction from on-vehicle USB interface after sale, avoids all needing to carry out the complicated operation of dismouting high voltage distribution box to seek the fault reason at every turn, has improved user experience greatly.
According to an embodiment of the present invention, as shown in fig. 3, the monitoring system of the high voltage distribution box of the electric vehicle may further include a wireless data transmission module 50, where the wireless data transmission module 50 is connected to the main chip module 30, and the wireless data transmission module 50 is configured to upload the status information of each high voltage device in the high voltage distribution box to a cloud database.
Specifically, although the storage module 40 can record the fault data, the user needs to go to the vehicle and extract the fault data through the USB interface, so that the steps of re-testing, testing and the like can be avoided, and a worker can easily solve a general fault problem. However, if a rare or difficult fault occurs, an expert group is required to make a conference discussion decision, and the state information of each high-voltage device in the high-voltage distribution box 100 can be uploaded to the cloud database through the wireless data transmission module 50, so that a user can directly conduct an expert group conference, and a solution is discussed according to the state information of each high-voltage device in the high-voltage distribution box 100, so that a worker is notified to solve the fault at the first time. Moreover, uploading the state information of each high-voltage device in the high-voltage distribution box 100 to the cloud database is also beneficial to building a fault problem database of a company, and faults which may occur in the future are predicted by utilizing big data analysis, so that the method plays an extremely important role in improving the product quality.
In summary, according to the monitoring system of the high voltage distribution box of the electric vehicle in the embodiment of the invention, the detection module detects the working environment signal of the high voltage distribution box, the communication module communicates with the battery management system of the electric vehicle, the main chip module monitors the high voltage distribution box according to the working environment signal to generate monitoring information, and the communication module sends the monitoring information to the battery management system, so that the battery management system adjusts the control strategy of the electric vehicle according to the monitoring information. From this, this system can carry out real time monitoring and control to high tension switchgear to with monitoring information transmission to battery management system, thereby can make strategic control to the trouble rapidly when high tension switchgear breaks down, make the trouble controllable, greatly improved the security of whole car. Moreover, the state information of each high-voltage device can be stored through the storage module, and the wireless data transmission module uploads the state information of each high-voltage device in the high-voltage distribution box to the cloud database, so that a user can conveniently perform fault analysis, and the user experience is greatly improved. When high tension switchgear's monitored control system integration was inside high tension switchgear, both made things convenient for the wiring and practiced thrift the pencil, when satisfying the demand of lightweight, realized high tension switchgear's distribution function and safety monitoring function's integration.
The embodiment of the invention also provides an electric automobile which comprises the monitoring system of the high-voltage distribution box of the electric automobile.
According to the electric vehicle provided by the embodiment of the invention, the monitoring system of the high-voltage distribution box of the electric vehicle can be used for monitoring and controlling the high-voltage distribution box in real time and sending the monitoring information to the battery management system, so that the fault can be rapidly controlled in a strategic manner when the high-voltage distribution box breaks down, the fault can be controlled, and the safety of the whole vehicle is greatly improved.
Fig. 4 is a flowchart of a monitoring method of a high voltage distribution box of an electric vehicle according to an embodiment of the present invention. As shown in fig. 4, the method comprises the following steps:
and S1, detecting the working environment signal of the high-voltage distribution box. The working environment signals comprise temperature signals in the high-voltage distribution box, working voltage signals and working current signals of each high-voltage device in the high-voltage distribution box, and smoke concentration signals in the high-voltage distribution box.
And S2, monitoring the high-voltage distribution box according to the working environment signal to generate monitoring information, and sending the monitoring information to the battery management system so that the battery management system can adjust the control strategy of the electric vehicle according to the monitoring information.
Specifically, CAN detect the operating current signal of every high-voltage device in the high voltage distribution box through current sensor, detect the operating voltage signal of every high-voltage device in the high voltage distribution box through voltage sensor, detect the temperature signal in the high voltage distribution box through temperature sensor, detect the smog concentration signal in the high voltage distribution box through smog sensor, and feed back to battery management system through the CAN bus in real time, so that battery management system is according to the operating current signal, the operating voltage signal, the control strategy of temperature signal and smog concentration signal adjustment electric automobile, and simultaneously, CAN also be according to the operating current signal, the operating voltage signal, temperature signal and smog concentration signal control the high-voltage device in the high voltage distribution box. For example, when an electric vehicle is started, a working environment signal of the high-voltage distribution box is detected in real time, and processing such as calculation and comparison is performed according to the working environment signal to generate monitoring information so as to judge whether the working environment of the high-voltage distribution box is normal or not. If the working environment of the high-voltage distribution box is normal, the high-voltage devices in the high-voltage distribution box can be controlled according to user instructions and a whole vehicle control strategy. And monitoring information CAN be sent to a CAN bus of the whole vehicle, the battery management system CAN timely adjust the control strategy of the electric vehicle by acquiring the monitoring information on the CAN bus, for example, if the battery management system judges that the temperature in the high-voltage distribution box is too high according to the monitoring information, the battery management system performs power reduction control on the electric vehicle so as to prevent the temperature of the high-voltage distribution box from continuously rising and improve the safety of the whole vehicle. Therefore, the method can monitor and control the high-voltage distribution box in real time and send monitoring information to the battery management system, so that strategic control can be rapidly performed on faults when the high-voltage distribution box breaks down, the faults are controllable, and the safety of the whole vehicle is greatly improved.
According to an embodiment of the present invention, as shown in fig. 5, the monitoring method for a high voltage distribution box of an electric vehicle may further include:
and S21, judging whether the temperature in the high-voltage distribution box is greater than or equal to a preset temperature threshold value or not according to the temperature signal in the high-voltage distribution box. The preset temperature threshold value can be preset according to actual conditions.
And S22, if the temperature in the high-voltage distribution box is greater than or equal to a preset temperature threshold value, generating a trigger signal, and sending the trigger signal to the battery management system so that the battery management system can perform power reduction control on the electric automobile.
Specifically, after the electric automobile is started, whether the temperature in the high-voltage distribution box is larger than or equal to a preset temperature threshold value or not is judged according to the temperature signal in the high-voltage distribution box, if yes, a trigger signal is generated, and the trigger signal is sent to a battery management system. After receiving the trigger signal, the battery management system limits the output voltage of the power battery of the electric automobile so as to reduce the power of the automobile and enable the automobile to run under a low working condition. And after the temperature in the high-voltage distribution box is reduced to the normal temperature, namely when the temperature in the high-voltage distribution box is smaller than a preset temperature threshold value, the battery management system controls the output voltage of the power battery according to a normal control strategy.
According to an embodiment of the present invention, as shown in fig. 3, the high voltage distribution box may further include a fire extinguishing apparatus, as shown in fig. 6, and the monitoring method of the high voltage distribution box of the electric vehicle described above may further include:
and S23, judging whether the smoke concentration in the high-voltage distribution box is greater than or equal to a preset smoke concentration threshold value or not according to the smoke concentration signal, and judging whether the temperature rising speed in the high-voltage distribution box is greater than or equal to a preset speed threshold value or not according to the temperature signal in the high-voltage distribution box. The preset speed threshold value can be preset according to actual conditions.
S24, if the temperature rising speed in the high-voltage distribution box is larger than or equal to a preset speed threshold and the smoke concentration in the high-voltage distribution box is larger than or equal to a preset smoke concentration threshold, controlling the fire extinguishing device to start. The preset smoke concentration can be preset according to actual conditions.
Specifically, if judge smog concentration signal more than or equal to according to fog concentration signal and predetermine smog concentration threshold value, and judge the temperature rising speed more than or equal to of high voltage distribution box according to temperature signal and predetermine speed threshold value, explain that high voltage distribution box has the risk of catching fire, control extinguishing device starts to put out a fire to the block terminal, improve the security of whole car.
It should be noted that, in the embodiment of the present invention, before the whole vehicle is not input (a high voltage instruction) or does not run, the inspection is performed by using the smoke concentration signal acquired by the smoke sensor, and then using the temperature signal acquired by the temperature sensor, to determine whether the high voltage distribution box is abnormal before being powered on and without starting high voltage, and if the temperature rising speed in the high voltage distribution box is greater than or equal to the preset speed threshold and the smoke concentration in the high voltage distribution box is greater than or equal to the preset smoke concentration threshold, the instruction for prohibiting starting is sent to the battery management system. When the whole vehicle is charged, whether the high-voltage distribution box is abnormal or not is judged according to the smoke concentration signal and the temperature signal, and if the temperature rising speed in the high-voltage distribution box is larger than or equal to a preset speed threshold value and the smoke concentration in the high-voltage distribution box is larger than or equal to a preset smoke concentration threshold value, the fire extinguishing device is controlled to start. And if the high-voltage distribution box has no fire risk, namely the temperature rise speed in the high-voltage distribution box is smaller than a preset speed threshold value and/or the smoke concentration in the high-voltage distribution box is smaller than a preset smoke concentration threshold value, controlling a high-voltage device in the high-voltage distribution box according to a user instruction and a whole vehicle control strategy.
According to an embodiment of the present invention, the monitoring method for a high voltage distribution box of an electric vehicle may further include: monitoring the state information of each high-voltage device according to a temperature signal in the high-voltage distribution box, a working voltage signal and a working current signal of each high-voltage device in the high-voltage distribution box and a smoke concentration signal in the high-voltage distribution box so as to prompt the state information of each high-voltage device through vehicle-mounted multimedia.
Specifically, the state information of each high-voltage device can be monitored according to a temperature signal in the high-voltage distribution box, a working voltage signal and a working current signal of each high-voltage device in the high-voltage distribution box, and a smoke concentration signal in the high-voltage distribution box, and whether the high-voltage distribution box has a fault or not is judged. For example, whether the contact of the relay is aged or not can be analyzed according to the working voltage signal and the working current signal of each relay in the high-voltage distribution box, whether the relay is sintered or fused or not can also be analyzed, relevant fault information is generated, then the communication is carried out with vehicle-mounted multimedia, the fault information is displayed on a vehicle-mounted display screen or an instrument panel through the vehicle-mounted multimedia, a customer is prompted to carry out regular maintenance, and the safety and the reliability of a vehicle are improved. For another example, whether the high-voltage distribution box has a fire risk or not can be judged according to the temperature signal and the smoke concentration signal, if the temperature rising speed in the high-voltage distribution box is greater than or equal to a preset speed threshold and the smoke concentration in the high-voltage distribution box is greater than or equal to a preset smoke concentration threshold, the high-voltage distribution box is judged to have the fire risk, relevant fault information is generated mainly, the prompt information is sent to the vehicle-mounted multimedia, the vehicle-mounted multimedia controls a vehicle-mounted display screen, an instrument panel or a buzzer and the like to send out prompt information according to the fault information so as to prompt a user, and the user can make relevant prevention or remedial measures according to the prompt information so as to avoid further expansion of faults and improve the safety.
After the high-voltage distribution box breaks down, in the process of searching for the fault reason, on-site simulation test is often needed, and the reason of the fault can be found out only by consuming huge manpower and material resources. For this reason, in an embodiment of the present invention, the monitoring method for a high voltage distribution box of an electric vehicle may further include: storing the state information of each high-voltage device through a storage module; monitoring the storage capacity of the storage module, and controlling the storage module to erase historical data when the storage capacity of the storage module is lower than the preset storage capacity.
Specifically, the storage module is an erasable memory module, so that real-time wave recording of temperature signals in the high-voltage distribution box, working voltage signals and working current signals of each high-voltage device in the high-voltage distribution box, smoke concentration signals in the high-voltage distribution box and other related signals can be realized, when the high-voltage devices in the high-voltage distribution box break down, related technicians only need to acquire data in the storage module and analyze the data, the failure reasons can be identified at the first time, testing and other work are not needed, and the best chance of fault elimination is prevented from missing.
When the vehicle runs, the fault is unpredictable when the fault occurs, the storage module can record the temperature signal in the high-voltage distribution box, the working voltage signal and the working current signal of each high-voltage device in the high-voltage distribution box and the data of the smoke concentration signal in the high-voltage distribution box in real time, when the fault of the high-voltage distribution box is judged according to the signals, the fault waveform is extracted into an EPROM (Erasable Programmable Read Only Memory) of the storage module, and for unnecessary data (mainly the data which are not recorded at the fault moment), the storage module is controlled to erase historical data when the storage capacity of the storage module is lower than the preset storage capacity.
For example: the storage module records a 20s waveform from the time of 0s, and the fault occurs at the time of 10s, so that the waveform between 5s and 15s can be intercepted, stored as fault data and extracted to an EPROM, and erased after analysis data is provided for after sale. Unnecessary data refers to data between 0s and 5s and between 15s and 20s, and when the residual storage capacity of the storage module is judged to be lower than the preset storage capacity, unnecessary historical data in the storage module are sequentially erased. The length of the useful fault data to be intercepted should be determined according to the specific control strategy of each loop in the high-voltage distribution box. The storage module CAN be communicated with a vehicle-mounted display screen and a USB (Universal Serial Bus) interface through a CAN Bus, directly displays fault information and tells a driver to perform related correct operation. Relevant staff can directly carry out data extraction from on-vehicle USB interface after sale, avoids all needing to carry out the complicated operation of dismouting high voltage distribution box to seek the fault reason at every turn, has improved user experience greatly.
According to an embodiment of the present invention, the monitoring method for a high voltage distribution box of an electric vehicle may further include: and uploading the state information of each high-voltage device in the high-voltage distribution box to a cloud database.
Specifically, although the storage module can record the fault data, the user needs to go to the vehicle and extract the fault data through the USB interface, so that the steps of re-testing, testing and the like can be avoided, and a worker can easily solve the general fault problem. However, if a rare or difficult fault occurs, an expert group is required to make a conference discussion decision, and the state information of each high-voltage device in the high-voltage distribution box can be uploaded to the cloud database, so that a user can directly conduct an expert group conference, and a solution is discussed according to the state information of each high-voltage device in the high-voltage distribution box, so that a worker is informed of solving the fault at the first time. Moreover, the state information of each high-voltage device in the high-voltage distribution box is uploaded to a cloud database, so that a fault problem database of a company can be constructed, and faults which may appear in the future can be predicted by utilizing big data analysis, so that the method plays an extremely important role in improving the product quality.
According to the monitoring method of the high-voltage distribution box of the electric automobile, provided by the embodiment of the invention, the working environment signal of the high-voltage distribution box is detected, the high-voltage distribution box is monitored according to the working environment signal to generate monitoring information, and the monitoring information is sent to the battery management system, so that the battery management system adjusts the control strategy of the electric automobile according to the monitoring information. Therefore, the method can monitor and control the high-voltage distribution box in real time and send monitoring information to the battery management system, so that strategic control can be rapidly performed on faults when the high-voltage distribution box breaks down, the faults are controllable, and the safety of the whole vehicle is greatly improved. In addition, the state information of each high-voltage device can be stored through the storage module, and the state information of each high-voltage device in the high-voltage distribution box is uploaded to the cloud database, so that a user can conveniently perform fault analysis, and the user experience is greatly improved.
Furthermore, an embodiment of the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, which when executed by a processor, implements the monitoring method of the high-voltage distribution box of the electric vehicle described above.
The non-transitory computer-readable storage medium of the embodiment of the invention detects the working environment signal of the high-voltage distribution box, monitors the high-voltage distribution box according to the working environment signal to generate monitoring information, and sends the monitoring information to the battery management system, so that the battery management system adjusts the control strategy of the electric vehicle according to the monitoring information, thereby rapidly performing strategic control on the fault when the high-voltage distribution box has the fault, controlling the fault and greatly improving the safety of the whole vehicle.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (12)

1. The utility model provides a monitored control system of electric automobile's high tension switchgear, its characterized in that includes:
the detection module is used for detecting working environment signals of the high-voltage distribution box, wherein the working environment signals comprise temperature signals in the high-voltage distribution box, working voltage signals and working current signals of each high-voltage device in the high-voltage distribution box and smoke concentration signals in the high-voltage distribution box;
a communication module in communication with a battery management system of the electric vehicle;
the main chip module is respectively connected with the detection module and the communication module, and is used for monitoring the high-voltage distribution box according to the working environment signal to generate monitoring information and sending the monitoring information to the battery management system through the communication module so that the battery management system can adjust the control strategy of the electric vehicle according to the monitoring information;
high voltage distribution box includes extinguishing device, wherein, main chip module still is used for the basis smog concentration signal is judged whether smog concentration in the high voltage distribution box is more than or equal to predetermines smog concentration threshold value, and basis temperature signal judgement in the high voltage distribution box whether the speed of rise of temperature in the high voltage distribution box is more than or equal to predetermines the speed threshold value, and be in speed of rise of temperature in the high voltage distribution box is more than or equal to predetermines speed threshold value just control when smog concentration in the high voltage distribution box is more than or equal to predetermines smog concentration threshold value extinguishing device starts.
2. The monitoring system of claim 1, wherein the main chip module is further configured to determine whether a temperature inside the high voltage distribution box is greater than or equal to a preset temperature threshold according to the temperature signal inside the high voltage distribution box, generate a trigger signal when the temperature inside the high voltage distribution box is greater than or equal to the preset temperature threshold, and send the trigger signal to the battery management system, so that the battery management system performs power reduction control on the electric vehicle.
3. The monitoring system for the hv power distribution box of the electric vehicle according to claim 1, wherein the main chip module is further configured to monitor the status information of each hv device according to the temperature signal in the hv power distribution box, the operating voltage signal and the operating current signal of each hv device in the hv power distribution box, and the smoke concentration signal in the hv power distribution box, and communicate with the vehicle-mounted multimedia of the electric vehicle through the communication module to prompt the status information of each hv device through the vehicle-mounted multimedia.
4. The monitoring system for a high voltage distribution box of an electric vehicle according to claim 3, further comprising a storage module connected to the main control chip module, wherein the storage module is configured to store the status information of each high voltage device, and wherein the main control chip module is further configured to monitor the storage capacity of the storage module and control the storage module to erase the historical data when the storage capacity of the storage module is lower than a preset storage capacity.
5. The monitoring system for the high-voltage distribution box of the electric vehicle as claimed in any one of claims 1 to 4, further comprising a wireless data transmission module, wherein the wireless data transmission module is connected to the main chip module, and the wireless data transmission module is configured to upload the status information of each high-voltage device in the high-voltage distribution box to a cloud database.
6. An electric vehicle characterized by comprising the monitoring system of the high voltage distribution box of the electric vehicle according to any one of claims 1 to 5.
7. The monitoring method of the high-voltage distribution box of the electric automobile is characterized in that the high-voltage distribution box comprises a fire extinguishing device, and comprises the following steps:
detecting a working environment signal of the high-voltage distribution box, wherein the working environment signal comprises a temperature signal in the high-voltage distribution box, a working voltage signal and a working current signal of each high-voltage device in the high-voltage distribution box, and a smoke concentration signal in the high-voltage distribution box;
monitoring the high-voltage distribution box according to the working environment signal to generate monitoring information, and sending the monitoring information to a battery management system so that the battery management system can adjust a control strategy of the electric vehicle according to the monitoring information;
judging whether the smoke concentration in the high-voltage distribution box is greater than or equal to a preset smoke concentration threshold value or not according to the smoke concentration signal, and judging whether the temperature rising speed in the high-voltage distribution box is greater than or equal to a preset speed threshold value or not according to the temperature signal in the high-voltage distribution box;
and if the temperature rising speed in the high-voltage distribution box is greater than or equal to a preset speed threshold value and the smoke concentration in the high-voltage distribution box is greater than or equal to a preset smoke concentration threshold value, controlling the fire extinguishing device to start.
8. The method of monitoring a high voltage distribution box of an electric vehicle of claim 7, further comprising:
judging whether the temperature in the high-voltage distribution box is greater than or equal to a preset temperature threshold value or not according to the temperature signal in the high-voltage distribution box;
and if the temperature in the high-voltage distribution box is greater than or equal to a preset temperature threshold value, generating a trigger signal, and sending the trigger signal to the battery management system so that the battery management system can perform power reduction control on the electric automobile.
9. The method of monitoring a high voltage distribution box of an electric vehicle of claim 7, further comprising:
monitoring the state information of each high-voltage device according to the temperature signal in the high-voltage distribution box, the working voltage signal and the working current signal of each high-voltage device in the high-voltage distribution box and the smoke concentration signal in the high-voltage distribution box, so as to prompt the state information of each high-voltage device through vehicle-mounted multimedia.
10. The method of monitoring a high voltage distribution box of an electric vehicle of claim 9, further comprising:
storing the state information of each high-voltage device through a storage module;
monitoring the storage capacity of the storage module, and controlling the storage module to erase historical data when the storage capacity of the storage module is lower than a preset storage capacity.
11. The monitoring method of the high voltage distribution box of the electric vehicle as set forth in any one of claims 7 to 10, further comprising: and uploading the state information of each high-voltage device in the high-voltage distribution box to a cloud database.
12. A non-transitory computer-readable storage medium having stored thereon a computer program, characterized in that the program, when executed by a processor, implements the monitoring method of the high voltage distribution box of the electric vehicle according to any one of claims 7 to 11.
CN201711463263.6A 2017-12-28 2017-12-28 Electric automobile and monitoring system and monitoring method of high-voltage distribution box of electric automobile Active CN109986966B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711463263.6A CN109986966B (en) 2017-12-28 2017-12-28 Electric automobile and monitoring system and monitoring method of high-voltage distribution box of electric automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711463263.6A CN109986966B (en) 2017-12-28 2017-12-28 Electric automobile and monitoring system and monitoring method of high-voltage distribution box of electric automobile

Publications (2)

Publication Number Publication Date
CN109986966A CN109986966A (en) 2019-07-09
CN109986966B true CN109986966B (en) 2021-02-23

Family

ID=67108313

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711463263.6A Active CN109986966B (en) 2017-12-28 2017-12-28 Electric automobile and monitoring system and monitoring method of high-voltage distribution box of electric automobile

Country Status (1)

Country Link
CN (1) CN109986966B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111890933A (en) * 2020-06-11 2020-11-06 恒大恒驰新能源汽车研究院(上海)有限公司 Battery management method and system for vehicle, vehicle and server

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060069136A (en) * 2004-12-17 2006-06-21 현대자동차주식회사 Power division control system of hybrid vehicle and method thereof
JP2013184519A (en) * 2012-03-07 2013-09-19 Nissan Motor Co Ltd Control device of hybrid vehicle
CN204331355U (en) * 2014-11-28 2015-05-13 奇点新源国际技术开发(北京)有限公司 The car-mounted terminal of electric automobile
DE102014203606A1 (en) * 2014-02-27 2015-08-27 Robert Bosch Gmbh Method for monitoring the thermal load of balancing resistors
CN104924910A (en) * 2015-06-15 2015-09-23 上海瑞伯德智能系统科技有限公司 High-voltage distribution board circuit
CN205159864U (en) * 2015-11-09 2016-04-13 安徽腾徽电气有限公司 Heat dissipation formula safety high voltage distributor box
CN105857083A (en) * 2016-06-15 2016-08-17 中国重汽集团济南动力有限公司 Opening monitoring system of box cover of high-voltage distribution box of pure electric vehicle
CN106183868A (en) * 2016-08-12 2016-12-07 四川永贵科技有限公司 Electric automobile high-voltage power distribution panel
CN106340962A (en) * 2016-09-20 2017-01-18 国家电网公司 Monitoring and alarming system for DC power supply in transformer substation
CN106737756A (en) * 2017-02-13 2017-05-31 云南电网有限责任公司电力科学研究院 A kind of robot system based on high-tension distributing line electrical verification and ground wire operation
CN106786084A (en) * 2016-12-10 2017-05-31 广东思东利电力科技有限公司 A kind of intelligent high-pressure and low-pressure pre-casing type transforming station
CN106740125A (en) * 2016-11-29 2017-05-31 北京长城华冠汽车科技股份有限公司 A kind of high tension apparatus fault detection system of electric automobile, method and electric automobile
CN107234969A (en) * 2016-03-29 2017-10-10 比亚迪股份有限公司 Electric automobile and its high pressure protector

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04193675A (en) * 1990-11-28 1992-07-13 Hitachi Ltd Fire detection system of train
CN202586423U (en) * 2012-04-27 2012-12-05 中航锂电(洛阳)有限公司 Electric vehicle power supply system and high-voltage distribution box
CN103419650B (en) * 2012-05-22 2016-03-30 比亚迪股份有限公司 The power system of electronlmobil, electronlmobil and heating of battery method
JP6443743B2 (en) * 2014-12-25 2018-12-26 三菱自動車工業株式会社 Electric vehicle
CN205159841U (en) * 2015-11-09 2016-04-13 安徽腾徽电气有限公司 Safety warning high voltage distributor box
CN205377032U (en) * 2015-11-18 2016-07-06 浙江中科正方电子技术有限公司 A controlling means for automobile -used high voltage distributor box
CN105680334B (en) * 2016-04-05 2019-01-18 深圳市清友能源技术有限公司 A kind of integral box for electric automobile high-voltage distribution and DC/DC
CN106323502A (en) * 2016-08-31 2017-01-11 镇江大全赛雪龙牵引电气有限公司 High-voltage power distribution cabinet monitoring system
CN206141335U (en) * 2016-09-30 2017-05-03 深圳市国科动力新能源技术有限公司 High voltage power distribution box who contains smog monitoring
CN206633827U (en) * 2017-03-22 2017-11-14 深圳众联能创新能源科技有限公司 A kind of electric automobile high-voltage block terminal with monitoring temperature

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060069136A (en) * 2004-12-17 2006-06-21 현대자동차주식회사 Power division control system of hybrid vehicle and method thereof
JP2013184519A (en) * 2012-03-07 2013-09-19 Nissan Motor Co Ltd Control device of hybrid vehicle
DE102014203606A1 (en) * 2014-02-27 2015-08-27 Robert Bosch Gmbh Method for monitoring the thermal load of balancing resistors
CN204331355U (en) * 2014-11-28 2015-05-13 奇点新源国际技术开发(北京)有限公司 The car-mounted terminal of electric automobile
CN104924910A (en) * 2015-06-15 2015-09-23 上海瑞伯德智能系统科技有限公司 High-voltage distribution board circuit
CN205159864U (en) * 2015-11-09 2016-04-13 安徽腾徽电气有限公司 Heat dissipation formula safety high voltage distributor box
CN107234969A (en) * 2016-03-29 2017-10-10 比亚迪股份有限公司 Electric automobile and its high pressure protector
CN105857083A (en) * 2016-06-15 2016-08-17 中国重汽集团济南动力有限公司 Opening monitoring system of box cover of high-voltage distribution box of pure electric vehicle
CN106183868A (en) * 2016-08-12 2016-12-07 四川永贵科技有限公司 Electric automobile high-voltage power distribution panel
CN106340962A (en) * 2016-09-20 2017-01-18 国家电网公司 Monitoring and alarming system for DC power supply in transformer substation
CN106740125A (en) * 2016-11-29 2017-05-31 北京长城华冠汽车科技股份有限公司 A kind of high tension apparatus fault detection system of electric automobile, method and electric automobile
CN106786084A (en) * 2016-12-10 2017-05-31 广东思东利电力科技有限公司 A kind of intelligent high-pressure and low-pressure pre-casing type transforming station
CN106737756A (en) * 2017-02-13 2017-05-31 云南电网有限责任公司电力科学研究院 A kind of robot system based on high-tension distributing line electrical verification and ground wire operation

Also Published As

Publication number Publication date
CN109986966A (en) 2019-07-09

Similar Documents

Publication Publication Date Title
CN105774557A (en) Intelligent high-voltage management system of electric car
US20170326986A1 (en) Bus leakage resistance estimation for electrical isolation testing and diagnostics
EP2785558B1 (en) Apparatus for detecting the state of a storage battery
CN103064032A (en) Breakdown diagnostic system of power battery
CN103337882B (en) Automobile power cell monitoring system and monitoring method
CN203920449U (en) Electric automobile high-voltage safety detection device
CN105235544B (en) Change the electric control system up and down and method of electric-type electric automobile
CN105629133B (en) System and method for diagnosing the insulation breakdown of vehicle part
CN109986966B (en) Electric automobile and monitoring system and monitoring method of high-voltage distribution box of electric automobile
CN104798283A (en) Device for testing and maintaining a high voltage battery and uses thereof
US10381692B2 (en) Method for monitoring the state of a battery in a motor vehicle
CN103612567A (en) Electric vehicle high voltage safety protecting system and method
CN106610481A (en) Apparatus and method of diagnosing current sensor of eco-friendly vehicle
CN106058333A (en) Method for operating a battery
CN107472029A (en) The high voltage fault detection method and vehicle of vehicle
CN110036305A (en) For running the method and battery management device thus of the traction battery group of motor vehicle
US8577544B2 (en) Method for examining a state of an electric circuit of a motor vehicle
US20140225567A1 (en) Method and device for charging an energy store of a vehicle
CN107589377B (en) battery pack running state acquisition device
DE102017219028A1 (en) System for detecting critical operating states of electrical energy storage
DE102017108051A1 (en) AUTOMATIC BATTERY FLUID LEVEL MONITORING SYSTEM FOR VEHICLES WITH FLUTE BATTERIES AND METHOD THEREFOR
CN109724647A (en) EMU car rises pressure case condition monitoring system and monitoring method
DE102012222787A1 (en) Energy storage system has control unit which is provided for initiating safety-enhancing reaction in response to temperature of energy storage unit, determined in safety-critical rest state of energy storage unit
EP2378299A2 (en) Power distribution circuit diagnostic system and method
KR20180029807A (en) Auto vehicle battery management system use wireless communication

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant