CN115465153A - Power battery temperature monitoring system, method, device, terminal and medium - Google Patents

Power battery temperature monitoring system, method, device, terminal and medium Download PDF

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Publication number
CN115465153A
CN115465153A CN202211061848.6A CN202211061848A CN115465153A CN 115465153 A CN115465153 A CN 115465153A CN 202211061848 A CN202211061848 A CN 202211061848A CN 115465153 A CN115465153 A CN 115465153A
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China
Prior art keywords
temperature
temperature data
data
fault level
circuit
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Pending
Application number
CN202211061848.6A
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Chinese (zh)
Inventor
赵大亮
雷奥
荣常如
刘鹏飞
刘轶鑫
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FAW Group Corp
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FAW Group Corp
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Priority to CN202211061848.6A priority Critical patent/CN115465153A/en
Publication of CN115465153A publication Critical patent/CN115465153A/en
Priority to PCT/CN2023/108402 priority patent/WO2024045940A1/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION 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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/04—Cutting off the power supply under fault conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/12—Recording operating variables ; Monitoring of operating variables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K2219/00—Thermometers with dedicated analog to digital converters

Abstract

The invention discloses a power battery temperature monitoring system, a method, a device, a terminal and a medium, belonging to the technical field of power batteries, wherein a battery temperature acquisition module comprises: the battery temperature acquisition circuit comprises a first battery temperature acquisition circuit and a second battery temperature acquisition circuit; the monitoring module is used for respectively acquiring battery circuit data, the first temperature data and the second temperature data, respectively judging and identifying the battery circuit data, the first temperature data and the second temperature data to obtain corresponding fault level commands and sending the corresponding fault level commands to the execution module; and the execution module is used for acquiring the fault level command and executing a corresponding safety mode. This patent is through only needing to gather battery temperature sensor information of the same kind, and temperature acquisition module has avoided temperature acquisition's common cause inefficacy through two collection passageways, different sampling principle.

Description

Power battery temperature monitoring system, method, device, terminal and medium
Technical Field
The invention discloses a power battery temperature monitoring system, a power battery temperature monitoring method, a power battery temperature monitoring device, a power battery temperature monitoring terminal and a power battery temperature monitoring medium, and belongs to the technical field of power batteries.
Background
With the wide popularization of electric automobiles, the safety problem of a battery pack is more and more concerned by designers, a battery management system is responsible for monitoring and managing the voltage, the current and the temperature of the battery pack in real time, the temperature is one of important parameters reflecting the characteristics of the battery pack, and the working temperature of a power battery pack not only influences the performance of the battery pack, but also is directly related to the safety of vehicles. The new energy automobile battery pack is sometimes in a fire accident, so that the acquisition and monitoring of the temperature of the battery pack are also particularly important.
At present, two paths of sensors are adopted for collecting information of one path of battery temperature sensor in the traditional method, and due to common cause failure of temperature collection, the accuracy and reliability of collection and monitoring are low, and safety accidents caused by inaccurate battery temperature collection or abnormal battery temperature state are caused.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a power battery temperature monitoring system, a method, a device, a terminal and a medium, and functional safety related methods are added for battery temperature acquisition and monitoring, so that the reliability of battery temperature acquisition and monitoring is improved, and the probability of functional safety accidents is reduced.
The technical scheme of the invention is as follows:
according to a first aspect of embodiments of the present invention, there is provided a power battery temperature monitoring system, the system comprising: the system comprises a battery temperature acquisition module, a monitoring module and an execution module;
the battery temperature acquisition module includes: the battery temperature acquisition circuit comprises a first battery temperature acquisition circuit and a second battery temperature acquisition circuit;
the first battery temperature acquisition circuit is used for acquiring initial temperature data, processing the initial temperature data to obtain first temperature data and sending the first temperature data to the monitoring module;
the second battery temperature acquisition circuit is used for acquiring initial temperature data, processing the initial temperature data to obtain second temperature data and sending the second temperature data to the monitoring module;
the monitoring module is used for respectively acquiring sampling circuit data, the first temperature data and the second temperature data, respectively judging and identifying the battery circuit data, the first temperature data and the second temperature data to obtain corresponding fault level commands and sending the corresponding fault level commands to the execution module;
and the execution module is used for acquiring the fault level command and executing a corresponding safety mode.
Preferably, the first battery temperature acquisition circuit comprises a first filter circuit electrically connected with the battery module temperature sensor, the first filter circuit is electrically connected with the sampling circuit, the sampling circuit is electrically connected with the isolation communication circuit, the isolation communication circuit is electrically connected with the first temperature acquisition unit, and the first temperature acquisition unit is electrically connected with the monitoring module;
the second battery temperature acquisition circuit comprises a second filter circuit electrically connected with the battery module temperature sensor, the second filter circuit is electrically connected with the second temperature acquisition unit, and the second temperature acquisition unit is electrically connected with the monitoring module.
Preferably, the first filter circuit is configured to perform filtering protection processing on input initial temperature data and send the processed initial temperature data to the sampling circuit;
the sampling circuit is used for collecting input filtered temperature data and providing reference voltage for temperature value sampling according to the outside to obtain first high-voltage temperature data and sending the first high-voltage temperature data to the isolation communication circuit;
the isolation communication circuit is used for processing the first high-voltage temperature data to obtain first temperature data and sending the first temperature data to the first temperature acquisition unit;
the first temperature acquisition unit is used for acquiring first temperature data and sending the first temperature data to the monitoring module;
the second filter circuit is used for carrying out filter protection processing on the input initial temperature data and acquiring the circuit and temperature data to obtain second high-voltage temperature data and sending the second high-voltage temperature data to the second temperature acquisition unit;
the second temperature acquisition unit is used for carrying out voltage reduction and digital-analog processing on the second high-voltage temperature data to obtain second temperature data and sending the second temperature data to the monitoring module.
Preferably, when the fault level command is a first fault level command, the execution module is further configured to execute a safety mode in a normal operating mode;
when the fault level command is a second fault level command, the execution module is further used for executing a safety mode that the main positive contactor is disconnected and the main negative contactor is disconnected after the TBD time is delayed;
and when the fault level command is a third fault level command, the execution module is further used for executing a safety mode that all the high-voltage contactors are switched off.
According to a second aspect of an embodiment of the present invention, there is provided a power battery temperature monitoring method applied to the power battery temperature monitoring system of the first aspect, including:
respectively acquiring sampling circuit data, the first temperature data and the second temperature data;
and judging and identifying the sampling circuit data, the first temperature data and the second temperature data respectively to obtain corresponding fault level commands.
Preferably, the determining and identifying the battery circuit data, the first temperature data and the second temperature data to obtain the corresponding fault level command respectively includes:
judging whether a circuit fault working condition exists in the sampling circuit data:
if yes, the fault level command is a second fault level command;
if not, the fault level command is a first fault level command;
respectively judging whether the first temperature data and the second temperature data are smaller than a first threshold value:
if yes, the fault level command is a second fault level command;
if not, executing the next step;
respectively judging whether the first temperature data and the second temperature data are greater than a second threshold value:
if yes, executing the next step;
if not, the fault level command is a first fault level command;
respectively judging whether the first temperature data and the second temperature data are greater than a third threshold value:
if yes, the fault level command is a third fault level command;
if not, the fault level command is a second fault level command;
obtaining a temperature data difference value according to the first temperature data and the second temperature data;
judging whether the temperature data difference value is larger than a fourth threshold value:
if yes, the fault level command is a second fault level command;
and if not, the fault level command is a first fault level command.
Preferably, the circuit fault condition includes at least: open, short, and reference voltage error faults.
According to a third aspect of the embodiments of the present invention, there is provided a power battery temperature monitoring apparatus including:
the data acquisition module is used for respectively acquiring sampling circuit data, the first temperature data and the second temperature data;
and the judging and identifying module is used for respectively judging and identifying the sampling circuit data, the first temperature data and the second temperature data to obtain corresponding fault level commands.
According to a fourth aspect of the embodiments of the present invention, there is provided a terminal, including:
one or more processors;
a memory for storing the one or more processor-executable instructions;
wherein the one or more processors are configured to:
the method of the first aspect of the embodiments of the present invention is performed.
According to a fifth aspect of embodiments of the present invention, there is provided a non-transitory computer-readable storage medium, wherein instructions, when executed by a processor of a terminal, enable the terminal to perform the method according to the first aspect of embodiments of the present invention.
According to a sixth aspect of embodiments of the present invention, there is provided an application program product, which, when running on a terminal, causes the terminal to perform the method of the first aspect of embodiments of the present invention.
The invention has the beneficial effects that:
the utility model provides a power battery temperature monitoring system, a method, a device, a terminal and a medium, through only needing to gather battery temperature sensor information of the same kind, be different from the collection of two traditional road sensors, the quantity of temperature acquisition sensor has been saved, temperature acquisition module passes through two collection channels, different sampling principle, the common cause of having avoided temperature acquisition is invalid, be used for the temperature acquisition and the control to the battery through adopting the relevant method of functional safety, improve the accuracy and the reliability of battery temperature acquisition and control, simultaneously through the detection to the electrical fault and the temperature range of acquisition circuit, get into different safety condition through the execution module, can effectively reduce the probability that the incident that triggers because battery temperature acquisition is inaccurate or battery temperature condition is unusual.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
FIG. 1 is a block diagram of a power cell temperature monitoring system according to an exemplary embodiment;
FIG. 2 is a block diagram illustrating a battery temperature acquisition module in a power battery temperature monitoring system according to an exemplary embodiment;
FIG. 3 is a flow chart illustrating a method of monitoring power cell temperature according to an exemplary embodiment;
FIG. 4 is a block diagram illustrating a schematic configuration of a power cell temperature monitoring apparatus according to an exemplary embodiment;
fig. 5 is a schematic block diagram of a terminal structure according to an example embodiment.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Fig. 1 is a power cell temperature monitoring system according to an exemplary embodiment, as shown in fig. 1, the system comprising: the battery temperature acquisition module, the monitoring module and the execution module, and the working modes among the modules will be described in detail below.
Wherein, battery temperature acquisition module includes: first battery temperature acquisition circuit and second battery temperature acquisition circuit, the temperature acquisition of two branches uses different collection principles, avoids because the inefficacy that leads to because of sharing reason improves battery module temperature acquisition's reliability and security, and as shown in fig. 2, first battery temperature acquisition circuit is used for acquireing initial temperature data and handles and obtain first temperature data and send for monitoring module. The first battery temperature acquisition circuit comprises a first filter circuit electrically connected with the battery module temperature sensor, the first filter circuit is electrically connected with the sampling circuit, the sampling circuit is electrically connected with the isolation communication circuit, the isolation communication circuit is electrically connected with the first temperature acquisition unit, and the first temperature acquisition unit is electrically connected with the monitoring module. The first filter circuit is used for carrying out filter protection processing on the input initial temperature data and sending the initial temperature data to the sampling circuit; the sampling circuit comprises a current limiting resistor, a filter capacitor and a sampling chip for collecting analog quantity, the sampling chip needs to provide reference voltage externally for sampling a temperature value, the specific mode of the sampling circuit is not limited, and the sampling circuit is used for collecting input filtered temperature data, obtaining first high-voltage temperature data according to the reference voltage externally provided for sampling the temperature value and sending the first high-voltage temperature data to the isolation communication circuit; the isolation communication circuit is used for processing the first high-voltage temperature data to obtain first temperature data and sending the first temperature data to the first temperature acquisition unit; the first temperature acquisition unit at least comprises a communication module used for acquiring first temperature data and sending the first temperature data to the monitoring module.
The second battery temperature acquisition circuit is used for acquiring initial temperature data, processing the initial temperature data to obtain second temperature data and sending the second temperature data to the monitoring module. The second battery temperature acquisition circuit comprises a second filter circuit electrically connected with the battery module temperature sensor, the second filter circuit is electrically connected with the second temperature acquisition unit, and the second temperature acquisition unit is electrically connected with the monitoring module. The second filter circuit is used for carrying out filter protection processing on the input initial temperature data, acquiring the circuit and temperature data to obtain second high-voltage temperature data, and sending the second high-voltage temperature data to the second temperature acquisition unit. The second temperature acquisition unit at least comprises an AD acquisition module which is used for carrying out voltage reduction and digital-analog processing on the second high-voltage temperature data to obtain second temperature data and sending the second temperature data to the monitoring module.
The monitoring module is used for respectively acquiring sampling circuit data, first temperature data and second temperature data, respectively judging and identifying the sampling circuit data, the first temperature data and the second temperature data to obtain corresponding fault level commands and sending the corresponding fault level commands to the execution module.
The execution module is used for acquiring the fault level command and executing the corresponding safety mode. When the fault level command is a first fault level command, the execution module is further used for executing that the safety mode is a normal working mode, which indicates that the battery management system is in a normal working state; when the fault level command is a second fault level command, the execution module executes a safety mode that the main positive contactor is disconnected and the main negative contactor is disconnected after the TBD time is delayed, so that the high voltage of the battery module cannot be output outwards, and the high voltage safety is ensured;
when the fault level command is a third fault level command, the execution module is also used for executing a safety mode that all high-voltage contactors are switched off, so that personal injury caused by thermal runaway is avoided.
Example two
Fig. 3 is a flow chart illustrating a power cell temperature monitoring method for use in a terminal according to an exemplary embodiment, the method including the steps of:
step 101, respectively acquiring sampling circuit data, the first temperature data and the second temperature data;
step 102, judging and identifying the sampling circuit data, the first temperature data and the second temperature data respectively to obtain corresponding fault level commands, wherein the specific contents are as follows:
respectively judging whether the sampling circuit data have circuit fault working conditions:
if yes, the fault level command is a second fault level command;
if not, the fault level command is a first fault level command;
respectively judging whether the first battery circuit data and the second battery circuit data are smaller than a first threshold value:
if yes, the fault level command is a second fault level command;
if not, executing the next step;
respectively judging whether the first battery circuit data and the second battery circuit data are larger than a second threshold value:
if yes, executing the next step;
if not, the fault level command is a first fault level command;
respectively judging whether the first battery circuit data and the second battery circuit data are larger than a third threshold value:
if yes, the fault level command is a third fault level command;
and if not, the fault level command is a second fault level command.
Obtaining a temperature data difference value according to the first temperature data and the second temperature data;
judging whether the temperature data difference value is larger than a fourth threshold value:
if yes, the fault level command is a second fault level command;
and if not, the fault level command is the first fault level command.
Wherein, above-mentioned circuit fault operating mode includes at least: open circuit, short circuit and reference voltage error faults, wherein the open circuit is that an electronic device is in a disconnected state, so that acquired information is lost; the short circuit is that the electronic device is in a direct connection state, so that the information acquisition is wrong; the reference voltage error is that the voltage value used for acquiring calculation is incorrect, so that the acquired information is wrong.
The invention only needs to collect one path of battery temperature sensor information, is different from the traditional two paths of sensor collection, saves the number of temperature collection sensors, the temperature collection module avoids the common cause failure of temperature collection through two collection channels and different sampling principles, the accuracy and the reliability of battery temperature collection and monitoring are improved by adopting a functional safety related method for the temperature collection and monitoring of the battery, and meanwhile, the probability of safety accidents caused by inaccurate battery temperature collection or abnormal battery temperature state can be effectively reduced by detecting the electrical fault and the temperature range of a collection circuit and entering different safety states through the execution module.
EXAMPLE III
In an exemplary embodiment, there is also provided a power battery temperature monitoring apparatus, as shown in fig. 4, the apparatus including:
an obtaining data module 210, configured to obtain sampling circuit data, the first temperature data, and the second temperature data, respectively;
and the judgment and identification module 220 is configured to respectively judge and identify the sampling circuit data, the first temperature data, and the second temperature data to obtain a corresponding fault level command.
The invention only needs to collect one path of battery temperature sensor information, is different from the traditional two paths of sensor collection, saves the number of temperature collection sensors, the temperature collection module avoids the common cause failure of temperature collection through two collection channels and different sampling principles, the accuracy and the reliability of battery temperature collection and monitoring are improved by adopting a functional safety related method for the temperature collection and monitoring of the battery, and meanwhile, the probability of safety accidents caused by inaccurate battery temperature collection or abnormal battery temperature state can be effectively reduced by detecting the electrical fault and the temperature range of a collection circuit and entering different safety states through the execution module.
Example four
Fig. 5 is a block diagram of a terminal according to an embodiment of the present application, where the terminal may be the terminal in the foregoing embodiment.
In general, the terminal 300 includes: a processor 301 and a memory 302.
The processor 301 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so on. The processor 301 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 301 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in a wake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 301 may be integrated with a GPU (Graphics Processing Unit) that is responsible for rendering and drawing content that the display screen needs to display. In some embodiments, the processor 301 may further include an AI (Artificial Intelligence) processor for processing computing operations related to machine learning.
Memory 302 may include one or more computer-readable storage media, which may be tangible and non-transitory. Memory 302 may also include high speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in the memory 302 is used to store at least one instruction for execution by the processor 301 to implement a power cell temperature monitoring method provided herein.
In some embodiments, the terminal 300 may further optionally include: a peripheral interface 303 and at least one peripheral. Specifically, the peripheral device includes: at least one of radio frequency circuitry 304, touch display screen 305, camera 306, audio circuitry 307, positioning component 308, and power supply 309.
The peripheral interface 303 may be used to connect at least one peripheral related to I/O (Input/Output) to the processor 301 and the memory 302. In some embodiments, the processor 301, memory 302, and peripheral interface 303 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 301, the memory 302 and the peripheral interface 303 may be implemented on a single chip or circuit board, which is not limited by the embodiment.
The Radio Frequency circuit 304 is used for receiving and transmitting RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuitry 304 communicates with a communication network and other communication devices via electromagnetic signals. The rf circuit 304 converts an electrical signal into an electromagnetic signal to transmit, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 304 comprises: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and so forth. The radio frequency circuitry 304 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: the world wide web, metropolitan area networks, intranets, various generations of mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the radio frequency circuit 304 may further include NFC (Near Field Communication) related circuits, which are not limited in this application.
The touch display screen 305 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. The touch screen display 305 also has the ability to capture touch signals on or above the surface of the touch screen display 305. The touch signal may be input to the processor 301 as a control signal for processing. The touch screen display 305 is used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, the touch display screen 305 may be one, providing the front panel of the terminal 300; in other embodiments, the touch display screens 305 may be at least two, respectively disposed on different surfaces of the terminal 300 or in a folded design; in still other embodiments, the touch display 305 may be a flexible display disposed on a curved surface or on a folded surface of the terminal 300. Even more, the touch screen display 305 may be arranged in a non-rectangular irregular pattern, i.e., a shaped screen. The touch Display screen 305 may be made of LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), and the like.
The camera assembly 306 is used to capture images or video. Optionally, camera assembly 306 includes a front camera and a rear camera. Generally, a front camera is used for realizing video call or self-shooting, and a rear camera is used for realizing shooting of pictures or videos. In some embodiments, the number of the rear cameras is at least two, and each of the rear cameras is any one of a main camera, a depth-of-field camera and a wide-angle camera, so that the main camera and the depth-of-field camera are fused to realize a background blurring function, and the main camera and the wide-angle camera are fused to realize a panoramic shooting function and a VR (Virtual Reality) shooting function. In some embodiments, camera assembly 306 may also include a flash. The flash lamp can be a monochrome temperature flash lamp or a bicolor temperature flash lamp. The double-color-temperature flash lamp is a combination of a warm-light flash lamp and a cold-light flash lamp and can be used for light compensation under different color temperatures.
Audio circuitry 307 is used to provide an audio interface between a user and terminal 300. Audio circuitry 307 may include a microphone and a speaker. The microphone is used for collecting sound waves of a user and the environment, converting the sound waves into electric signals, and inputting the electric signals to the processor 301 for processing or inputting the electric signals to the radio frequency circuit 304 to realize voice communication. The microphones may be provided in plural numbers, respectively, at different portions of the terminal 300 for the purpose of stereo sound collection or noise reduction. The microphone may also be an array microphone or an omni-directional acquisition microphone. The speaker is used to convert electrical signals from the processor 301 or the radio frequency circuitry 304 into sound waves. The loudspeaker can be a traditional film loudspeaker or a piezoelectric ceramic loudspeaker. When the speaker is a piezoelectric ceramic speaker, the speaker can be used for purposes such as converting an electric signal into a sound wave audible to a human being, or converting an electric signal into a sound wave inaudible to a human being to measure a distance. In some embodiments, audio circuitry 307 may also include a headphone jack.
The positioning component 308 is used to locate the current geographic Location of the terminal 300 to implement navigation or LBS (Location Based Service). The Positioning component 308 may be a Positioning component based on the Global Positioning System (GPS) in the united states, the beidou System in china, or the galileo System in russia.
The power supply 309 is used to supply power to the various components in the terminal 300. The power source 309 may be alternating current, direct current, disposable batteries, or rechargeable batteries. When the power source 309 includes a rechargeable battery, the rechargeable battery may be a wired rechargeable battery or a wireless rechargeable battery. The wired rechargeable battery is a battery charged through a wired line, and the wireless rechargeable battery is a battery charged through a wireless coil. The rechargeable battery can also be used to support fast charge technology.
EXAMPLE five
In an exemplary embodiment, a computer-readable storage medium is further provided, on which a computer program is stored, which when executed by a processor, implements a power battery temperature monitoring method as provided by all inventive embodiments of the present application.
Any combination of one or more computer-readable media may be employed. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
Example six
In an exemplary embodiment, an application program product is also provided, which includes one or more instructions executable by the processor 301 of the apparatus to perform the method for monitoring the temperature of the power battery.
While embodiments of the invention have been disclosed above, it is not intended that they be limited to the applications set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. Therefore, the invention is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept as defined by the claims and their equivalents.

Claims (10)

1. A power cell temperature monitoring system, the system comprising: the device comprises a battery temperature acquisition module, a monitoring module and an execution module;
the battery temperature acquisition module includes: the battery temperature acquisition circuit comprises a first battery temperature acquisition circuit and a second battery temperature acquisition circuit;
the first battery temperature acquisition circuit is used for acquiring initial temperature data, processing the initial temperature data to obtain first temperature data and sending the first temperature data to the monitoring module;
the second battery temperature acquisition circuit is used for acquiring initial temperature data, processing the initial temperature data to obtain second temperature data and sending the second temperature data to the monitoring module;
the monitoring module is used for respectively acquiring sampling circuit data, the first temperature data and the second temperature data, respectively judging and identifying the battery circuit data, the first temperature data and the second temperature data to obtain corresponding fault level commands and sending the corresponding fault level commands to the execution module;
and the execution module is used for acquiring the fault level command and executing a corresponding safety mode.
2. The power battery temperature monitoring system according to claim 1,
the first battery temperature acquisition circuit comprises a first filter circuit electrically connected with the battery module temperature sensor, the first filter circuit is electrically connected with the sampling circuit, the sampling circuit is electrically connected with the isolation communication circuit, the isolation communication circuit is electrically connected with the first temperature acquisition unit, and the first temperature acquisition unit is electrically connected with the monitoring module;
the second battery temperature acquisition circuit comprises a second filter circuit electrically connected with the battery module temperature sensor, the second filter circuit is electrically connected with the second temperature acquisition unit, and the second temperature acquisition unit is electrically connected with the monitoring module.
3. The power battery temperature monitoring system according to claim 2,
the first filter circuit is used for carrying out filter protection processing on the input initial temperature data and sending the initial temperature data to the sampling circuit;
the sampling circuit is used for collecting input filtered temperature data and obtaining first high-voltage temperature data by sampling temperature values according to externally provided reference voltage and sending the first high-voltage temperature data to the isolation communication circuit;
the isolation communication circuit is used for processing the first high-voltage temperature data to obtain first temperature data and sending the first temperature data to the first temperature acquisition unit;
the first temperature acquisition unit is used for acquiring first temperature data and sending the first temperature data to the monitoring module;
the second filter circuit is used for carrying out filter protection processing on the input initial temperature data and acquiring the circuit and temperature data to obtain second high-voltage temperature data and sending the second high-voltage temperature data to the second temperature acquisition unit;
the second temperature acquisition unit is used for carrying out voltage reduction and digital-analog processing on the second high-voltage temperature data to obtain second temperature data and sending the second temperature data to the monitoring module.
4. The power battery temperature monitoring system according to claim 3,
when the fault level command is a first fault level command, the execution module is further used for executing a safety mode which is a normal working mode;
when the fault level command is a second fault level command, the execution module is further used for executing a safety mode that the main positive contactor is disconnected and the main negative contactor is disconnected after the TBD time is delayed;
and when the fault level command is a third fault level command, the execution module is also used for executing a safety mode that all the high-voltage contactors are switched off.
5. A power battery temperature monitoring method is applied to a power battery temperature monitoring system of any one of claims 1-4, and comprises the following steps:
respectively acquiring sampling circuit data, the first temperature data and the second temperature data;
and judging and identifying the sampling circuit data, the first temperature data and the second temperature data respectively to obtain corresponding fault grade commands.
6. The method for monitoring the temperature of the power battery according to claim 5, wherein the step of respectively judging and identifying the battery circuit data, the first temperature data and the second temperature data to obtain corresponding fault level commands comprises the following steps:
judging whether a circuit fault working condition exists in the sampling circuit data:
if yes, the fault level command is a second fault level command;
if not, the fault level command is a first fault level command;
respectively judging whether the first temperature data and the second temperature data are smaller than a first threshold value:
if yes, the fault level command is a second fault level command;
if not, executing the next step;
respectively judging whether the first temperature data and the second temperature data are greater than a second threshold value:
if yes, executing the next step;
if not, the fault level command is a first fault level command;
respectively judging whether the first temperature data and the second temperature data are greater than a third threshold value:
if yes, the fault level command is a third fault level command;
if not, the fault level command is a second fault level command;
obtaining a temperature data difference value according to the first temperature data and the second temperature data;
judging whether the temperature data difference value is larger than a fourth threshold value:
if yes, the fault level command is a second fault level command;
and if not, the fault level command is a first fault level command.
7. The power battery temperature monitoring method according to claim 5, wherein the circuit fault condition at least comprises: open, short, and reference voltage error failures.
8. A power battery temperature monitoring device, comprising:
the data acquisition module is used for respectively acquiring sampling circuit data, the first temperature data and the second temperature data;
and the judging and identifying module is used for respectively judging and identifying the sampling circuit data, the first temperature data and the second temperature data to obtain corresponding fault level commands.
9. A terminal, comprising:
one or more processors;
a memory for storing the one or more processor-executable instructions;
wherein the one or more processors are configured to:
a power battery temperature monitoring method according to any one of claims 5 to 7 is carried out.
10. A non-transitory computer readable storage medium, wherein instructions in the storage medium, when executed by a processor of a terminal, enable the terminal to perform a power battery temperature monitoring method according to any one of claims 5 to 7.
CN202211061848.6A 2022-09-01 2022-09-01 Power battery temperature monitoring system, method, device, terminal and medium Pending CN115465153A (en)

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WO2024045940A1 (en) * 2022-09-01 2024-03-07 中国第一汽车股份有限公司 Power battery temperature monitoring system, method and apparatus, terminal, and medium

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JP6478661B2 (en) * 2015-01-29 2019-03-06 ルネサスエレクトロニクス株式会社 Battery cell voltage correction method, battery monitoring device, semiconductor chip, and vehicle
CN108844644B (en) * 2018-06-28 2021-09-14 北京新能源汽车股份有限公司 Battery temperature sampling system and car
CN108983103B (en) * 2018-06-29 2020-10-23 上海科列新能源技术有限公司 Data processing method and device for power battery
CN109001640B (en) * 2018-06-29 2021-08-20 深圳市科列技术股份有限公司 Data processing method and device for power battery
CN115465153A (en) * 2022-09-01 2022-12-13 中国第一汽车股份有限公司 Power battery temperature monitoring system, method, device, terminal and medium

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024045940A1 (en) * 2022-09-01 2024-03-07 中国第一汽车股份有限公司 Power battery temperature monitoring system, method and apparatus, terminal, and medium

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