CN110646740A - Monitoring method and monitoring device for battery pack - Google Patents
Monitoring method and monitoring device for battery pack Download PDFInfo
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- CN110646740A CN110646740A CN201810676024.7A CN201810676024A CN110646740A CN 110646740 A CN110646740 A CN 110646740A CN 201810676024 A CN201810676024 A CN 201810676024A CN 110646740 A CN110646740 A CN 110646740A
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Abstract
The invention provides a battery pack monitoring method, which comprises the following steps: detecting the motion state of the battery pack to acquire the motion state information of the battery pack; collecting state parameters of the battery pack; judging that the battery pack is in an abnormal state according to the motion state information and the state parameters; according to the abnormal state, abnormal state information is generated. The monitoring method can provide abnormal state information of the battery pack in the abnormal state, and further can use the information as a basis for authority judgment, so that manufacturers of the battery pack can conveniently maintain the authority. In addition, the invention also provides a monitoring device for monitoring the battery pack and a battery pack monitoring method for the monitoring device.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery pack monitoring method and a monitoring device thereof.
Background
At present, because the lithium battery has the advantages of light weight, high energy density, high power density, multiple recycling times, long storage time and the like, the lithium battery is widely applied to the fields of electric tools, unmanned aerial vehicles and the like, has a wide application prospect in the aspects of electric vehicles such as electric automobiles, electric bicycles and the like, large and medium-sized electric equipment such as energy storage facilities and the like, and gradually becomes a key for solving global problems such as energy crisis, environmental pollution and the like.
With the increasingly wide application of lithium battery technology, the application of lithium batteries in daily life of people is also increasingly expanded. However, the lithium battery may fall in the using process, for example, the unmanned aerial vehicle falls from a high place in a flying state, the electric tool falls from a high place in the using process, and the like, so that the lithium battery is damaged, and at the moment, if the damage of the lithium battery cannot be accurately identified as being caused by the user reason or the product quality problem of a lithium battery manufacturer, the right maintaining difficulty of the user or the lithium battery manufacturer can be increased.
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, a first objective of the present invention is to provide a battery pack monitoring method for acquiring information of an abnormal drop of a battery pack as a basis for determining authority.
A second object of the present invention is to provide a monitoring device
A third object of the present invention is to propose another battery pack monitoring method.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides a battery pack monitoring method, including the following steps: detecting the motion state of a battery pack to acquire the motion state information of the battery pack; collecting state parameters of the battery pack; judging that the battery pack is in an abnormal state according to the motion state information and the state parameters; according to the abnormal state, abnormal state information is generated.
According to the battery pack monitoring method provided by the embodiment of the invention, the motion state information of the battery pack is obtained by detecting the motion state of the battery pack, the state parameters of the battery pack are collected, the battery pack is judged to be in an abnormal state according to the motion state information and the state parameters, and the abnormal state information is generated according to the abnormal state, so that the abnormal state information of the battery pack can be used as a right and responsibility judgment basis when the battery pack is damaged, and a manufacturer can conveniently maintain the right.
In addition, the battery pack monitoring method according to the embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, the motion state information of the battery pack includes a direction of acceleration of the battery pack and an acceleration value, the state parameter of the battery pack includes a discharge current of the battery pack, and the determining step includes determining that the battery pack is in an abnormal state when the discharge current of the battery pack is smaller than a current threshold, and the direction of acceleration is downward and the acceleration value is greater than or equal to an acceleration threshold.
According to an embodiment of the present invention, the state parameter of the battery pack includes a voltage, and the determining step includes determining that the battery pack is in an abnormal state when the voltage of the battery pack is less than a voltage threshold, the discharge current of the battery pack is less than a current threshold, and the direction of acceleration is downward and the acceleration value is greater than or equal to an acceleration threshold.
According to an embodiment of the present invention, the monitoring method further comprises: and storing the abnormal state information. .
According to an embodiment of the present invention, the monitoring method further comprises: and sending the abnormal state information to an equipment host or a cloud server for storage.
In order to achieve the above object, a second aspect of the present invention provides a monitoring device for monitoring a battery pack, the monitoring device including: the sensor is used for detecting the motion state of the battery pack so as to generate the motion state information of the battery pack; the acquisition circuit is used for acquiring the state parameters of the battery pack; and the processor is coupled with the sensor and the acquisition circuit and is used for generating abnormal state information when the battery pack is judged to be in an abnormal state according to the motion state information and the state parameters.
According to the monitoring device provided by the embodiment of the invention, the processor is used for judging whether the battery pack is in an abnormal state or not according to the motion state information and the state parameters of the battery pack and generating the abnormal state information when the battery pack is in the abnormal state, so that the abnormal state information can be used as a basis for authority judgment when the battery pack is damaged, and a manufacturer can maintain the authority conveniently.
In addition, the monitoring device according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, the motion state information includes a direction of acceleration of the battery pack and an acceleration value, the state parameter includes a discharge current of the battery pack, and the processor is further configured to: judging that the acceleration value is greater than an acceleration threshold value and the discharge current is less than a current threshold value to generate a judgment result; and judging that the battery pack is in an abnormal state according to the judgment result and generating the abnormal state information.
According to an embodiment of the present invention, the motion state information includes a direction of acceleration of the battery pack and an acceleration value, the state parameters include a voltage and a discharge current of the battery pack, and the processor is further configured to: judging that the voltage is smaller than a voltage threshold, the acceleration value is larger than an acceleration threshold and the discharge current is smaller than a current threshold so as to generate a judgment result; and judging that the battery pack is in an abnormal state according to the judgment result and generating the abnormal state information.
According to an embodiment of the present invention, the monitoring apparatus further includes: a memory coupled to the processor, the memory to store abnormal state information of the battery pack.
According to an embodiment of the present invention, the monitoring apparatus further includes: the communicator is coupled with the processor, wherein the processor sends the abnormal state information of the battery pack to a device host or a cloud server for storage through the communicator.
In order to achieve the above object, a battery pack monitoring method according to a third embodiment of the present invention is provided, which is used for a monitoring device, where the monitoring device includes a sensor, an acquisition circuit, and a processor, and the processor is coupled to the sensor and the acquisition circuit, and the battery pack monitoring method includes: detecting the motion state of the battery pack through the sensor to acquire the motion state information of the battery pack; acquiring the state parameters of the battery pack through the acquisition circuit; judging that the battery pack is in an abnormal state according to the motion state information and the state parameters through the processor; generating, by the processor, abnormal state information according to the abnormal state.
According to the battery pack monitoring method, whether the battery pack is in the abnormal state or not is judged according to the motion state information and the state parameters of the battery pack through the processor, and the abnormal state information is generated when the battery pack is in the abnormal state, so that the abnormal state information can be used as a basis for authority and responsibility judgment when the battery pack is damaged, and a manufacturer can maintain the authority conveniently.
In addition, the monitoring device according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, the motion state information includes a direction of acceleration and an acceleration value of a battery pack, the state parameter of the battery pack includes a discharge current of the battery pack, and the determining step includes: and when the discharge current of the battery pack is smaller than the current threshold, the acceleration direction is downward, and the acceleration value is larger than or equal to the acceleration threshold, judging that the battery pack is in an abnormal state through the processor.
According to an embodiment of the present invention, wherein the state parameter includes a voltage, the determining step includes: and when the voltage of the battery pack is smaller than a voltage threshold, the discharge current of the battery pack is smaller than a current threshold, the acceleration direction is downward, and the acceleration value is larger than or equal to an acceleration threshold, judging that the battery pack is in an abnormal state through a processor.
According to an embodiment of the present invention, wherein the monitoring device further comprises a memory coupled to the processor, the battery pack monitoring method further comprises: storing, by the memory, the exception state information.
According to an embodiment of the present invention, wherein the monitoring device further comprises a communicator coupled to the processor, the battery pack monitoring method further comprises:
and sending the abnormal state information to an equipment host or a cloud server for storage through the communicator.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing 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 flow chart of a battery pack monitoring method according to one embodiment of the present invention;
FIG. 2 is a flow chart of a battery pack monitoring method according to an embodiment of the present invention;
FIG. 3 is a flow chart of a battery pack monitoring method according to another embodiment of the present invention;
FIG. 4 is a schematic view of a monitoring device according to one embodiment of the present invention;
FIG. 5 is a schematic view of a monitoring device according to another embodiment of the invention;
FIG. 6 is a schematic view of a monitoring device according to yet another embodiment of the invention;
FIG. 7 is a schematic diagram of a monitoring device according to an embodiment of the present invention; and
fig. 8 is a flowchart of a battery pack monitoring method according to 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 apparatus and the battery pack monitoring method of the embodiments of the present invention are described below with reference to the drawings.
In an embodiment of the present invention, the battery pack may be, but is not limited to, a lithium battery pack, a nickel cadmium battery pack, a nickel hydrogen battery pack, and the like.
Fig. 1 is a flowchart of a battery pack monitoring method according to an embodiment of the present invention.
As shown in fig. 1, the battery pack monitoring method includes the steps of:
s101, detecting the motion state of the battery pack to acquire the motion state information of the battery pack.
The motion state information of the battery pack may include a direction of acceleration of the battery pack and an acceleration value corresponding to the direction.
For example, the acceleration information of the battery pack in three axes can be detected by an acceleration sensor (e.g., a three-axis acceleration sensor). The three-axis acceleration sensor can accurately and comprehensively reflect the motion information of the battery pack, has the characteristics of light weight and small volume, and is convenient to integrate and set. The acceleration sensor may also be, but is not limited to, a gyroscope, a G-sensor, or the like.
And S102, acquiring the state parameters of the battery pack.
The state parameter of the battery pack can be used for representing the current of the battery pack, including the discharge current, and can also be used for representing the discharge current and the voltage of the battery pack.
The order of steps S101 and S102 may be reversed or performed simultaneously.
And S103, judging that the battery pack is in an abnormal state according to the motion state information and the state parameters of the battery pack.
In one embodiment of the invention, the state parameter of the battery pack comprises a discharge current of the battery pack. When the discharging current of the battery pack is smaller than the current threshold, the acceleration direction is downward, and the acceleration value is larger than or equal to the acceleration threshold, the battery pack is judged to be in an abnormal state.
Specifically, when the discharge current of the battery pack is smaller than the current threshold and the acceleration value in the vertical downward direction or the horizontal direction reaches the acceleration threshold, it may be determined that the battery pack is in an abnormal state, that is, an abnormal drop or an accidental impact occurs, and it is determined that the reason why the abnormality occurs in the electronic device is the abnormal discharge of the battery.
It should be noted that when the discharge current of the battery pack is greater than the current threshold and the acceleration value in the vertical downward direction or the horizontal direction reaches the acceleration threshold, it may be determined that the battery pack is in a normal operating state, and it is further determined that the reason for the abnormality of the electronic device is that the electronic device falls abnormally or is accidentally bumped when the battery pack operates normally.
Based on the above embodiments, in another embodiment of the present invention, the state parameter of the battery pack may further include a voltage. When the voltage of the battery pack is smaller than the voltage threshold, the discharge current of the battery pack is smaller than the current threshold, the acceleration direction is downward, and the acceleration value is larger than or equal to the acceleration threshold, the battery pack is judged to be in an abnormal state.
Specifically, when the voltage of the battery pack is smaller than a voltage threshold, it is determined that the battery pack is in an insufficient electric quantity, and at this time, if the discharge current of the battery pack is smaller than a current threshold and the vertical downward acceleration value reaches an acceleration threshold, it may be determined that the battery pack falls abnormally due to the insufficient electric quantity, that is, the battery pack is in an abnormal state.
Alternatively, when the battery pack is composed of a plurality of battery cells, the voltage of the battery pack may be replaced with the voltage of each battery cell. When the voltage of at least one battery cell in the battery pack is smaller than the cell voltage threshold, such as 85% -90% of the full voltage of the battery cell, the electric quantity of the battery pack can be judged to be insufficient.
It should be noted that the current threshold and the voltage/cell voltage threshold may be calibrated according to needs (such as the type of a battery pack used by the electronic device, the number of cells, and the like), for example, for a 3.6V lithium battery of a common smart phone, the current threshold may be set to be 100mA, and the cell voltage threshold may be set to be 3.2V. The acceleration threshold can be obtained through experiments or experience, the values of the acceleration thresholds corresponding to the acceleration values in different directions can be different, for example, the acceleration threshold corresponding to the acceleration value in the vertical downward direction can be the gravity acceleration value g, namely 9.8m/s2，The acceleration threshold corresponding to the acceleration value in the horizontal direction may be 5m/s2。
S104, generating abnormal state information according to the abnormal state.
Specifically, if the battery pack is in an abnormal state, such as abnormal drop, accidental impact and the like, abnormal state information is generated according to the motion state information and the state parameters of the battery pack, namely the abnormal state information comprises the motion state information and the state parameters of the battery pack when the battery pack is in the abnormal state, such as discharge current and acceleration vectors, so that the right maintenance, big data processing and the like can be performed according to the abnormal state information at a later stage.
For example, a lithium battery pack is used as a battery of a smart phone. When the smart phone is placed on a desktop and is in a standby state (namely, the power consumption is very low), the smart phone suddenly falls off from the desktop due to external impact, if the controller integrated in the lithium battery pack judges that the discharge current of the collected battery pack is smaller than a current threshold value, and the acceleration value of the lithium battery pack in the vertical direction reaches an acceleration threshold value, the smart phone is judged to fall abnormally, and abnormal falling information is generated according to motion state information and state parameters.
Therefore, according to the battery pack monitoring method, the abnormal state information can be generated when the battery pack is in the abnormal state, and further, when the battery pack is damaged, the abnormal state information can be used as a basis for authority judgment, so that a manufacturer can conveniently maintain the authority.
In one embodiment of the invention, after the exception state information is generated, the exception state information may be stored to a corresponding memory for reading when needed.
Further, after the abnormal state information is generated, the abnormal state information can be sent to the device host or the cloud server for storage.
Specifically, a wired communication module or a wireless communication module may be integrated on the battery pack. Of course, the battery pack can also be integrated with a wired communication module and a wireless communication module.
In one example, the wired communication module may be a data transmission port, such as a USB port, which can access a data transmission line, and when the USB port is connected to a host, the battery pack may transmit the generated abnormal state information to the host for storage as a basis for authority determination.
Optionally, the battery pack may send prompt information to the host computer while sending the abnormal state information to the host computer, so that the user can know the current state of the battery pack in time. In addition, after the host computer obtains the abnormal state information, the abnormal state information can be further analyzed and processed, for example, the abnormal state information is stored in a database corresponding to the corresponding battery pack model.
In another example, the wireless communication module may be a wifi module, a bluetooth module, a 3G/4G module, and the like, and the battery pack may perform wireless communication with the cloud service through the wireless communication module to transmit the generated abnormal state information to the cloud server for storage, so that the cloud server performs big data analysis on the abnormal state information, thereby obtaining the usage habit of the user on the battery pack product, and facilitating subsequent optimization and user experience improvement of the battery pack product.
The battery pack monitoring method of the present invention will be described below by two specific embodiments with reference to fig. 2 and 3.
In one embodiment of the present invention, as shown in fig. 2, the battery pack monitoring method includes the steps of:
s201, detecting the motion state of the battery pack to acquire the direction and the acceleration value of the acceleration of the battery pack.
And S202, collecting the discharge current of the battery pack.
S203, judging whether the acceleration value vertically downward is larger than the acceleration threshold value or not and whether the discharge current is smaller than the current threshold value or not.
And S204, if the acceleration value in the vertical downward direction is greater than the acceleration threshold value and the discharge current is less than the current threshold value, judging that the battery pack is in an abnormal state and generating abnormal state information.
And S205, storing the abnormal state information to a corresponding memory, or sending the abnormal state information to the equipment host or the cloud server for storage.
In another embodiment of the present invention, as shown in fig. 3, the battery pack monitoring method includes the steps of:
s301, detecting the motion state of the battery pack to acquire the direction and the acceleration value of the acceleration of the battery pack.
And S302, collecting the discharge current and voltage of the battery pack.
S303, judging whether the voltage is smaller than a voltage threshold value, whether the vertical downward acceleration value is larger than an acceleration threshold value, and whether the discharging current is smaller than a current threshold value.
S304, if the voltage is smaller than the voltage threshold, the vertical downward acceleration value is larger than the acceleration threshold, and the discharge current is smaller than the current threshold, it is judged that the battery pack is in an abnormal state and abnormal state information is generated.
S305, storing the abnormal state information into a corresponding memory, or sending the abnormal state information to the device host or the cloud server for storage.
To sum up, the battery pack monitoring method according to the embodiment of the present invention determines whether the battery pack is in an abnormal state according to the state parameters and the motion state information of the battery pack, generates abnormal state information when the battery pack is in the abnormal state, and stores the abnormal state information, or transmits the abnormal state information to the host or the cloud server, so that when the battery pack is damaged, the abnormal state information can be used as a basis for determining authority, which is convenient for manufacturers to maintain authority, and large data analysis can be performed on the abnormal drop information, which is convenient for subsequent optimization and user experience improvement of the battery pack and products thereof.
Fig. 4 is a schematic diagram of a monitoring device for monitoring a battery pack according to an embodiment of the present invention. As shown in fig. 4, the monitoring apparatus 200 includes: a sensor 210, an acquisition circuit 220, and a processor 230.
Referring to fig. 4, the sensor 210 is used for detecting a motion state of the battery pack to generate motion state information of the battery pack. The acquisition circuit 220 is used for acquiring the state parameters of the battery pack. The processor 230 is coupled to the sensor 210 and the acquisition circuit 220, and is configured to generate abnormal state information when determining that the battery pack is in an abnormal state according to the motion state information and the state parameters.
In one example of the present invention, the motion state information includes a direction of an acceleration of the battery pack and an acceleration value, the state parameter includes a discharge current of the battery pack, and the processor 230 is configured to determine that the acceleration value is greater than the acceleration threshold and the discharge current is less than the current threshold to generate a determination result, and determine that the battery pack is in an abnormal state and generate abnormal state information according to the determination result.
In another example of the present invention, the motion state information includes a direction of acceleration and an acceleration value of the battery pack, the state parameters include a voltage and a discharge current of the battery pack, and the processor 230 is configured to determine that the voltage is less than a voltage threshold, the acceleration value is greater than an acceleration threshold, and the discharge current is less than a current threshold to generate a determination result, and according to the determination result, determine that the battery pack is in an abnormal state and generate abnormal state information.
It should be noted that both the current threshold and the voltage threshold may be calibrated according to needs (such as the type of a battery pack used by the electronic device, the number of battery cells, and the like), for example, for a 3.6V lithium battery of a common smart phone, the current threshold may be set to be 100mA, and the voltage threshold may be set to be 3.2V. The acceleration threshold can be obtained through experiments or experience, the values of the acceleration thresholds corresponding to the acceleration values in different directions can be different, for example, the acceleration threshold corresponding to the acceleration value in the vertical downward direction can be the gravity acceleration value g, namely 9.8m/s2，The acceleration threshold corresponding to the acceleration value in the horizontal direction may be 5m/s2。
Further, as shown in fig. 5, the monitoring device 200 further includes a memory 240 coupled to the processor 230, wherein the memory 240 is used for storing the abnormal state information of the battery pack.
Further, as shown in fig. 6, the monitoring apparatus 200 further includes a communicator 250 coupled to the processor 230, wherein the processor 230 sends the abnormal state information of the battery pack to the device host or the cloud server for storage through the communicator 250.
Specifically, the communicator 250 may have a wired communication function or a wireless communication function. Of course, the communicator 250 may have both a wired communication function and a wireless communication function.
In one example, when the communicator 250 is provided with a wired communication function, the communicator 250 may be a data transmission port, such as a USB port, to which a data transmission line is accessible. When the USB port is connected to the host, the processor 230 may transmit the generated abnormal state information to the host through the USB port for storage, so as to be used as a basis for determining authority.
Optionally, the processor 230 may send a prompt message to the host at the same time of sending the abnormal state information to the host, so that the user can know the current state of the battery pack in time. In addition, after the host computer obtains the abnormal state information, the abnormal state information can be further analyzed and processed, for example, the abnormal state information is stored in a database corresponding to the corresponding battery pack model.
In another example, when the communicator 250 has a wireless communication function, the communicator 250 may be a wifi module, a bluetooth module, a 3G/4G module, and the like, and the processor 230 may perform wireless communication with the cloud service through the communicator 250 to transmit the generated abnormal state information to the cloud server for storage, so that the cloud server performs big data analysis on the abnormal state information, obtains a usage habit of the user on the battery pack product, and facilitates subsequent optimization and user experience improvement of the battery pack product.
For ease of understanding, the operating principle of the monitoring device according to the embodiment of the present invention is described below with reference to fig. 7.
As shown in fig. 7, one end of the acquisition circuit 220 is connected to the battery pack, the other end of the acquisition circuit 220 is connected to the first end of the processor 230, and the acquisition circuit 220 is configured to acquire the voltage of the battery pack and the discharge current of the battery pack, and send the acquired voltage of the battery pack and the discharge current of the battery pack to the processor 230. The sensor 210 is connected to the second end of the processor 230, and the sensor 210 can detect the acceleration direction and the acceleration value of the battery pack in real time and transmit the acceleration direction and the acceleration value to the processor 230. The third end of the processor 230 is connected to the memory 240, and the fourth end of the processor 230 is connected to the communicator 250, wherein a storage space for each threshold and the abnormal drop information can be reserved in the memory 240, and the communicator 250 can serve as a communication port between the monitoring device 200 and the host to synchronize the abnormal state information to the host, and also serve as a communication port with the cloud server to synchronize the abnormal state information to the cloud server. It is understood that POWER provides an operating voltage for the monitoring device 200.
In this example, the processor 230 comprehensively analyzes the discharge current collected by the collection circuit 220, the voltage of the battery pack, and the acceleration direction and the acceleration value detected by the sensor 210, and determines whether the battery pack is in an abnormal state. If the processor 230 determines that the battery pack is in an abnormal state, the processor 230 generates abnormal state information, and stores the abnormal state information including the discharge current, the voltage and acceleration direction of the battery pack, and the acceleration value in the space of the memory 240, as a basis for subsequent authority determination and/or for big data analysis, or uploads the abnormal state information to the host or the cloud server through the communicator 250.
It should be noted that, for other specific embodiments of the monitoring device according to the embodiment of the present invention, reference may be made to the specific embodiment of the battery pack monitoring method according to the above-mentioned embodiment of the present invention, and details are not described herein for reducing redundancy.
According to the monitoring device provided by the embodiment of the invention, whether the battery pack is in an abnormal state or not is judged by the processor according to the state parameters and the motion state information of the battery pack, the abnormal state information is generated when the battery pack is in the abnormal state, the abnormal state information is stored by the memory, and the abnormal state information is transmitted to the host or the cloud server by the communicator, so that when the battery pack is damaged, the abnormal state information can be used as a basis for determining authority and authority of a manufacturer, the abnormal falling information can be subjected to big data analysis, and the subsequent optimization and user experience improvement of the battery pack and products thereof are facilitated.
Based on the monitoring device of the embodiment, the invention further provides a battery pack monitoring method.
In an embodiment of the present invention, the battery pack monitoring method is applied to a monitoring device, where the monitoring device includes a sensor, an acquisition circuit, and a processor, and the processor is coupled to the sensor and the acquisition circuit.
In one embodiment of the present invention, as shown in fig. 8, the battery pack monitoring method includes:
s401, detecting the motion state of the battery pack through a sensor to acquire the motion state information of the battery pack.
S402, collecting the state parameters of the battery pack through a collecting circuit.
And S403, judging that the battery pack is in an abnormal state through the processor according to the motion state information and the state parameters.
S404, generating abnormal state information according to the abnormal state through the processor.
In one example of the present invention, the motion state information includes a direction of acceleration and an acceleration value of the battery pack, and the state parameter of the battery pack includes a discharge current of the battery pack. In this example, the battery pack is determined to be in an abnormal state by the processor when the discharge current of the battery pack is less than the current threshold, the direction of acceleration is downward, and the acceleration value is greater than or equal to the acceleration threshold.
In another example of the present invention, the motion state information includes a direction of acceleration and an acceleration value of the battery pack, and the state parameters of the battery pack include a discharge current and a voltage of the battery pack. In this example, the battery pack is determined to be in an abnormal state by the processor when the voltage of the battery pack is less than the voltage threshold, the discharge current of the battery pack is less than the current threshold, the direction of acceleration is downward, and the acceleration value is greater than or equal to the acceleration threshold.
In one embodiment of the invention, the monitoring device further comprises a memory coupled to the processor. In this embodiment, the exception status information may also be stored by the memory.
In one embodiment of the invention, the monitoring device further comprises a communicator coupled to the processor. In this embodiment, the abnormal state information may also be sent to the device host or the cloud server for storage through the communicator.
It should be noted that, for other specific embodiments of the battery pack monitoring method according to the embodiment of the present invention, reference may be made to the specific embodiment of the monitoring device according to the above embodiment of the present invention, and details are not described herein for reducing redundancy.
According to the battery pack monitoring method, whether the battery pack is in the abnormal state or not is judged through the processor according to the state parameters and the motion state information of the battery pack, the abnormal state information is generated when the battery pack is in the abnormal state, the abnormal state information is stored through the memory, and the abnormal state information is transmitted to the host or the cloud server through the communicator, so that when the battery pack is damaged, the abnormal state information can be used as a basis for authority judgment, the maintenance of manufacturers is facilitated, the large data analysis can be carried out on the abnormal falling information, and the subsequent optimization and the user experience improvement of the battery pack and products are facilitated.
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.
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.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. 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 (15)
1. A battery pack monitoring method, comprising the steps of:
detecting the motion state of a battery pack to acquire the motion state information of the battery pack;
collecting state parameters of the battery pack;
judging that the battery pack is in an abnormal state according to the motion state information and the state parameters;
according to the abnormal state, abnormal state information is generated.
2. The battery pack monitoring method according to claim 1, wherein the movement state information of the battery pack includes a direction of acceleration of the battery pack and an acceleration value, the state parameters of the battery pack include a discharge current of the battery pack, and the determining step includes determining that the battery pack is in an abnormal state when the discharge current of the battery pack is less than a current threshold, and the direction of acceleration is downward and the acceleration value is greater than or equal to an acceleration threshold.
3. The battery pack monitoring method according to claim 2, wherein the state parameter of the battery pack includes a voltage, and the determining step includes determining that the battery pack is in an abnormal state when the voltage of the battery pack is less than a voltage threshold, a discharge current of the battery pack is less than a current threshold, a direction of acceleration is downward, and an acceleration value is greater than or equal to an acceleration threshold.
4. The battery pack monitoring method according to claim 1, further comprising:
and storing the abnormal state information.
5. The battery pack monitoring method according to claim 1, further comprising:
and sending the abnormal state information to an equipment host or a cloud server for storage.
6. A monitoring device for monitoring a battery pack, the monitoring device comprising:
the sensor is used for detecting the motion state of the battery pack so as to generate the motion state information of the battery pack;
the acquisition circuit is used for acquiring the state parameters of the battery pack; and
and the processor is coupled with the sensor and the acquisition circuit and is used for generating abnormal state information when the battery pack is judged to be in an abnormal state according to the motion state information and the state parameters.
7. The monitoring device of claim 6, wherein the motion state information includes a direction of acceleration of the battery pack and an acceleration value, the state parameters include a discharge current of the battery pack, and the processor is further configured to:
judging that the acceleration value is greater than an acceleration threshold value and the discharge current is less than a current threshold value to generate a judgment result; and
and judging that the battery pack is in an abnormal state according to the judgment result and generating the abnormal state information.
8. The monitoring device of claim 7, wherein the motion state information includes a direction of acceleration of the battery pack and an acceleration value, the state parameters include a voltage and a discharge current of the battery pack, and the processor is further configured to:
judging that the voltage is smaller than a voltage threshold, the acceleration value is larger than an acceleration threshold and the discharge current is smaller than a current threshold so as to generate a judgment result; and
and judging that the battery pack is in an abnormal state according to the judgment result and generating the abnormal state information.
9. The monitoring device of claim 6, further comprising:
a memory coupled to the processor, the memory to store abnormal state information of the battery pack.
10. The monitoring device of claim 6, further comprising:
the communicator is coupled with the processor, wherein the processor sends the abnormal state information of the battery pack to a device host or a cloud server for storage through the communicator.
11. A battery pack monitoring method for use with a monitoring device, the monitoring device including a sensor, an acquisition circuit, and a processor, the processor coupled to the sensor and the acquisition circuit, the battery pack monitoring method comprising:
detecting the motion state of the battery pack through the sensor to acquire the motion state information of the battery pack;
acquiring the state parameters of the battery pack through the acquisition circuit;
judging that the battery pack is in an abnormal state according to the motion state information and the state parameters through the processor;
generating, by the processor, abnormal state information according to the abnormal state.
12. The battery pack monitoring method according to claim 11, wherein the motion state information includes a direction of acceleration and an acceleration value of the battery pack, the state parameter of the battery pack includes a discharge current of the battery pack, and the judging step includes:
and when the discharge current of the battery pack is smaller than the current threshold, the acceleration direction is downward, and the acceleration value is larger than or equal to the acceleration threshold, judging that the battery pack is in an abnormal state through the processor.
13. The battery pack monitoring method of claim 12, wherein the status parameter comprises a voltage, the determining step comprising:
and when the voltage of the battery pack is smaller than a voltage threshold, the discharge current of the battery pack is smaller than a current threshold, the acceleration direction is downward, and the acceleration value is larger than or equal to an acceleration threshold, judging that the battery pack is in an abnormal state through a processor.
14. The battery pack monitoring method of claim 11, wherein the monitoring device further comprises a memory coupled to the processor, the battery pack monitoring method further comprising:
storing, by the memory, the exception state information.
15. The battery pack monitoring method of claim 11, wherein the monitoring device further comprises a communicator coupled to the processor, the battery pack monitoring method further comprising:
and sending the abnormal state information to an equipment host or a cloud server for storage through the communicator.
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| CN201810676024.7A CN110646740A (en) | 2018-06-27 | 2018-06-27 | Monitoring method and monitoring device for battery pack |
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