CN113608138A - Storage battery power shortage risk monitoring method, electronic equipment and storage medium - Google Patents
Storage battery power shortage risk monitoring method, electronic equipment and storage medium Download PDFInfo
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- CN113608138A CN113608138A CN202110872267.XA CN202110872267A CN113608138A CN 113608138 A CN113608138 A CN 113608138A CN 202110872267 A CN202110872267 A CN 202110872267A CN 113608138 A CN113608138 A CN 113608138A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
Abstract
The invention discloses a storage battery power shortage risk monitoring method, electronic equipment and a storage medium, wherein the method comprises the following steps: when the whole vehicle is dormant, periodically waking up the vehicle for a wake-up time to acquire the voltage of a vehicle storage battery in the wake-up time and the ambient temperature of the battery; determining a corresponding effective state of charge based on the voltage of the storage battery within the wake-up time and the ambient temperature of the storage battery; and if the effective state of charge is smaller than the state of charge threshold, executing the storage battery alarming operation. According to the invention, the storage battery is intelligently monitored, the service life performance risk of the storage battery is early warned, the problems that the whole vehicle cannot be started and the like are avoided, the vehicle using experience of a user is improved, and the service life of the battery is prolonged. And finally, the quality of the whole life cycle of the battery is improved due to the fact that the full value chain of the battery is monitored.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a storage battery power shortage risk monitoring method, electronic equipment and a storage medium.
Background
The storage battery provides electric energy for starting the automobile and operating some key electric equipment. Due to the importance of batteries, the prior art provides battery monitoring techniques.
However, in the battery monitoring Of the prior art, only after the entire vehicle is powered on, the Engine Control Module (ECM) or the cabin power distribution Management Module (USM) monitors the State Of Charge (SOC) Of the battery and the State Of Function (SOF) Of the battery, and determines the functions such as the back-up Control/start-stop Function, and does not directly inform the battery State Of the client.
However, the storage battery consumes power in all links after the whole vehicle is off-line, and the storage battery power is not reasonably managed in the pre-sale stock period, so that the battery power is insufficient or the durability of the battery is damaged when the vehicle is handed to a customer, the service life of the battery of the customer is influenced, and further the guarantee and the complaint are caused.
Meanwhile, in the process of using the vehicle by a customer, the condition that the engine cannot be started by the battery due to various reasons cannot be predicted in advance and the starting capability of the battery can be recovered, so that the vehicle using experience of the customer is influenced.
In addition, the SOC precision is low, the existing method only uses voltage to judge, and the interpretation precision is low.
Disclosure of Invention
In view of the above, it is necessary to provide a battery power shortage risk monitoring method, an electronic device, and a storage medium for solving the technical problems in battery monitoring in the prior art.
The invention provides a method for monitoring the power shortage risk of a storage battery, which comprises the following steps:
when the whole vehicle is dormant, periodically waking up the vehicle for a wake-up time to acquire the voltage of a vehicle storage battery in the wake-up time and the ambient temperature of the battery;
determining a corresponding effective state of charge based on the voltage of the storage battery within the wake-up time and the ambient temperature of the storage battery;
and if the effective state of charge is smaller than the state of charge threshold, executing the storage battery alarming operation.
Further, the determining a corresponding effective state of charge based on the voltage of the battery during the wake-up time and the ambient temperature of the battery specifically includes:
determining a voltage value to be compensated based on the battery environment temperature;
obtaining a compensated open-circuit voltage based on the voltage of the storage battery in the wake-up time and the voltage value to be compensated;
determining a corresponding effective state of charge based on the compensated open circuit voltage and the battery ambient temperature.
Furthermore, the obtaining of the compensated open-circuit voltage based on the voltage of the battery in the wake-up time and the voltage value to be compensated specifically includes:
taking the lowest voltage of the storage battery in the awakening time as the lowest voltage of the awakening stage;
and obtaining a compensated open-circuit voltage based on the lowest voltage of the wake-up stage and the voltage value to be compensated.
Further, the determining a voltage value to be compensated based on the battery ambient temperature specifically includes:
obtaining a temperature compensation value curve corresponding to a pre-sale and post-sale stage of a vehicle, wherein the pre-sale and post-sale stage comprises: an after-sale stage, a private store storage stage and a factory storage stage;
and taking the voltage compensation value corresponding to the battery environment temperature in the temperature compensation value curve as a voltage value to be compensated.
Further:
under the same temperature, the temperature compensation value corresponding to the temperature compensation value curve in the after-sale stage is more than or equal to the temperature compensation value corresponding to the temperature compensation value curve in the special store storage stage;
and under the same temperature, the temperature compensation value corresponding to the temperature compensation value curve in the special store storage stage is greater than or equal to the temperature compensation value corresponding to the temperature compensation value curve in the factory storage stage.
Further, if the effective state of charge is less than the state of charge threshold, performing a battery warning operation, specifically including:
acquiring a charge state threshold corresponding to a pre-sale and post-sale stage of a vehicle;
and if the effective state of charge is smaller than the state of charge threshold, executing a storage battery warning operation.
And further:
the charge state threshold corresponding to the after-sale stage is less than or equal to the charge state threshold corresponding to the special store storage stage;
the charge state threshold corresponding to the private store storage stage is less than or equal to the charge state threshold corresponding to the factory storage stage.
Further, still include:
in response to the cold start of the vehicle, determining the lowest voltage of the storage battery in the cold start process as the lowest voltage in the cold start stage;
and if the lowest voltage in the cold starting stage is lower than a preset voltage threshold, judging that the storage battery is degraded.
Further, the determining the corresponding effective state of charge based on the compensated open circuit voltage and the ambient temperature of the battery specifically includes:
acquiring an open-circuit voltage charge state relation curve corresponding to the ambient temperature of the battery;
if the storage battery is not judged to be degraded, taking the state of charge corresponding to the compensated open-circuit voltage in the open-circuit voltage state of charge relation curve as an effective state of charge;
and if the storage battery is judged to be degraded, taking the state of charge corresponding to the compensated open-circuit voltage in the open-circuit voltage state of charge relation curve as the state of charge to be calculated, and calculating the effective state of charge by subtracting a degraded state of charge compensation value from the state of charge to be calculated, wherein the degraded state of charge compensation value is larger than 0.
Further, if the effective state of charge is less than the state of charge threshold, performing a battery warning operation, specifically including:
acquiring a state of charge threshold;
if the storage battery is judged to be degraded, increasing the state of charge threshold value by a degraded state of charge compensation value;
and if the effective state of charge is smaller than the state of charge threshold, executing a storage battery warning operation.
Still further, still include: and if the storage battery is judged to be degraded, determining a degradation state according to the lowest voltage in the cold starting stage, and determining a degradation state of charge compensation value corresponding to the degradation state.
Further, the determining, in response to the cold start of the vehicle, the lowest voltage of the storage battery in the cold start process as the lowest voltage in the cold start stage specifically includes:
starting to capture a voltage drop waveform of the storage battery in response to the starting of a starter relay closing signal;
stopping capturing the voltage drop waveform of the storage battery in response to the starter relay closing signal being turned off;
and taking the lowest voltage in the captured voltage drop waveform of the storage battery as the lowest voltage in the cold starting stage.
Further, when whole car dormancy, the periodic vehicle of awakening up a period of awakening up time obtains the vehicle battery and is in voltage and battery ambient temperature in the awakening up time specifically include:
when the whole vehicle is in dormancy, periodically judging whether a wake-up condition is met, wherein the wake-up condition is as follows: the vehicle locking time of the vehicle exceeds the first time, and the vehicle is not wakened up in the second time before the current time;
if the wake-up condition is met, the vehicle is waken up for a wake-up time period, and the voltage of the vehicle storage battery in the wake-up time and the ambient temperature of the battery are obtained.
The present invention provides an electronic device, including:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to at least one of the processors; wherein the content of the first and second substances,
the memory stores instructions executable by at least one of the processors to enable the at least one of the processors to perform the battery run-short risk monitoring method as described above.
The present invention provides a storage medium storing computer instructions for performing all the steps of the battery power shortage risk monitoring method as described above when the computer executes the computer instructions.
The invention provides a storage battery power shortage risk monitoring system which comprises the electronic equipment and the server, wherein the electronic equipment is connected with the server through a network.
According to the invention, the storage battery is intelligently monitored, the service life performance risk of the storage battery is early warned, the problems that the whole vehicle cannot be started and the like are avoided, the vehicle using experience of a user is improved, and the service life of the battery is prolonged. And finally, the quality of the whole life cycle of the battery is improved due to the fact that the full value chain of the battery is monitored.
Drawings
FIG. 1 is a flow chart of the operation of a method for monitoring the power shortage risk of a storage battery according to the present invention;
fig. 2 is a flowchart illustrating a method for monitoring a power shortage risk of a storage battery according to an embodiment of the present invention;
FIG. 3 is a system schematic of the preferred embodiment of the present invention;
FIG. 4 is a flowchart illustrating a method for monitoring a power shortage risk of a storage battery according to a preferred embodiment of the present invention;
FIG. 5 is a data background battery power-down algorithm in accordance with a preferred embodiment of the present invention;
fig. 6 is a schematic diagram of a hardware structure of an electronic device according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
Example one
Fig. 1 shows a working flowchart of a method for monitoring a power shortage risk of a storage battery according to the present invention, which includes:
s101, when the whole vehicle is in a dormant state, periodically waking up the vehicle for a wake-up time to acquire the voltage of a vehicle storage battery in the wake-up time and the ambient temperature of the battery;
step S102, determining a corresponding effective state of charge based on the voltage of the storage battery in the awakening time and the ambient temperature of the storage battery;
and step S103, if the effective state of charge is smaller than a state of charge threshold, executing a storage battery warning operation.
In particular, the invention can be applied to a server which is in communication connection with a vehicle.
Under the condition of vehicle dormancy, after the background judges that the storage battery is in a stable state, a step S101 is triggered, a remote information Control Unit (TCU) of a vehicle is awakened remotely periodically, the TCU collects the voltage of the storage battery, meanwhile, the environmental temperature of the storage battery is obtained through a Controller Area Network (Controller Area Network), and the data are uploaded to the background through the TCU. And the background server executes the step S102, and determines the corresponding effective state of charge based on the voltage of the storage battery in the awakening time and the ambient temperature of the storage battery.
In one embodiment, the corresponding voltage value to be compensated is obtained according to the temperature compensation value curve. In the temperature compensation value curve, there are corresponding compensation voltage values for different temperature values. The specific corresponding relation between the temperature and the compensation voltage value can be determined by calibration. And then compensating the voltage of the storage battery in the wake-up time by adopting a compensation voltage value. Specifically, the average value, the weighted value, or the voltage value under a certain specific condition of the voltage of the storage battery during the wake-up time may be used as the open-circuit voltage to be added to the voltage value to be compensated, so as to obtain the compensated open-circuit voltage. Then, an effective state of charge (OCV) corresponding to the compensated Open Circuit Voltage is calculated. For example, an OCV-SOC curve is obtained, and then an SOC value corresponding to the OCV is determined as an effective state of charge. The OCV-SOC curve may also correspond to the ambient temperature of the battery. Namely, different battery environment temperature ranges correspond to different OCV-SOC curves.
In another embodiment, the open-circuit voltage of the battery is determined based on the voltage of the battery during the wake-up time, for example, an average value, a weighted value, or a voltage value under a certain condition of the voltage of the battery during the wake-up time is used as the open-circuit voltage of the battery. And then acquiring an OCV-SOC curve corresponding to the ambient temperature of the battery, and determining an SOC value corresponding to the OCV as an effective state of charge based on the OCV-SOC curve.
And finally, if the effective state of charge is smaller than the state of charge threshold, triggering the step S103 and executing the storage battery alarm operation. The storage battery alarming operation can be that information is pushed to a terminal user client through a background.
According to the invention, the storage battery is intelligently monitored, the service life performance risk of the storage battery is early warned, the problems that the whole vehicle cannot be started and the like are avoided, the vehicle using experience of a user is improved, and the service life of the battery is prolonged.
Example two
Fig. 2 is a flowchart illustrating a method for monitoring a power shortage risk of a storage battery according to an embodiment of the present invention, including:
step S201, responding to the cold start of the vehicle, and determining the lowest voltage of the storage battery in the cold start process as the lowest voltage in the cold start stage.
In one embodiment, the determining, in response to a cold start of the vehicle, a lowest voltage of the storage battery in a cold start process as a lowest voltage in a cold start stage specifically includes:
starting to capture a voltage drop waveform of the storage battery in response to the starting of a starter relay closing signal;
stopping capturing the voltage drop waveform of the storage battery in response to the starter relay closing signal being turned off;
and taking the lowest voltage in the captured voltage drop waveform of the storage battery as the lowest voltage in the cold starting stage.
Step S202, if the lowest voltage in the cold starting stage is lower than a preset voltage threshold, the storage battery is judged to be degraded;
step S203, when the whole vehicle is in sleep, periodically judging whether a wake-up condition is met, wherein the wake-up condition is as follows: the vehicle locking time of the vehicle exceeds the first time, and the vehicle is not wakened up in the second time before the current time;
step S204, if the awakening condition is met, awakening the vehicle for an awakening time period, and acquiring the voltage of the vehicle storage battery in the awakening time and the ambient temperature of the battery;
step S205, determining a voltage value to be compensated based on the battery environment temperature;
in one embodiment, the determining the voltage value to be compensated based on the battery ambient temperature specifically includes:
obtaining a temperature compensation value curve corresponding to a pre-sale and post-sale stage of a vehicle, wherein the pre-sale and post-sale stage comprises: the method comprises an after-sale stage, a private store storage stage and a factory storage stage, wherein at the same temperature, a temperature compensation value corresponding to a temperature compensation value curve of the after-sale stage is greater than or equal to a temperature compensation value corresponding to a temperature compensation value curve of the private store storage stage, and at the same temperature, a temperature compensation value corresponding to a temperature compensation value curve of the private store storage stage is greater than or equal to a temperature compensation value corresponding to a temperature compensation value curve of the factory storage stage;
and taking the voltage compensation value corresponding to the battery environment temperature in the temperature compensation value curve as a voltage value to be compensated.
Step S206, obtaining compensated open-circuit voltage based on the voltage of the storage battery in the wake-up time and the voltage value to be compensated;
in one embodiment, the obtaining a compensated open-circuit voltage based on the voltage of the battery in the wake-up time and the voltage value to be compensated specifically includes:
taking the lowest voltage of the storage battery in the awakening time as the lowest voltage of the awakening stage;
and obtaining a compensated open-circuit voltage based on the lowest voltage of the wake-up stage and the voltage value to be compensated.
Step S207, determining a corresponding effective state of charge based on the compensated open circuit voltage and the battery ambient temperature.
In one embodiment, determining the corresponding effective state of charge based on the compensated open-circuit voltage and the ambient temperature of the battery specifically includes:
determining an open-circuit voltage state of charge relation curve corresponding to the ambient temperature of the battery;
and determining the state of charge corresponding to the compensated open-circuit voltage from the open-circuit voltage state of charge relation curve as an effective state of charge.
Step S208, acquiring a charge state threshold corresponding to a pre-sale and post-sale stage of the vehicle;
step S209, if the effective SOC is less than the SOC threshold, executing a storage battery alarm operation, wherein the SOC threshold corresponding to the after-sale stage is less than or equal to the SOC threshold corresponding to the private store storage stage, and the SOC threshold corresponding to the private store storage stage is less than or equal to the SOC threshold corresponding to the factory storage stage.
Specifically, in each cold start process, step S201 is executed, an Electronic Control Unit (ECU) captures a voltage drop waveform of the storage battery, obtains a minimum voltage VBmin, and uploads the minimum voltage VBmin to the background server. Then, step S202 is executed, and the server determines the battery degradation status flag according to VBmin. The degradation flag may be compensated by changing the calculation of the effective state of charge, or the state of charge threshold may be changed according to the degradation flag to compensate.
Under the condition that the whole vehicle is dormant, after the background judges that the storage battery is in a stable state, step S203 is triggered, and whether the vehicle locking time exceeds the first time and the vehicle is not wakened up within the second time before the current time is periodically judged. If yes, step S204 is executed, the TCU acquires the voltage of the storage battery through a Telematics Control Unit (TCU) of the remote wakening vehicle, and simultaneously acquires the ambient temperature of the storage battery through a Controller Area Network (Controller Area Network), and the data is uploaded to the background through the TCU. Then, step S205 is executed to determine the voltage value to be compensated based on the battery ambient temperature. Specifically, a temperature compensation value curve corresponding to the after-sale stage of the vehicle is obtained, and a voltage compensation value corresponding to the battery ambient temperature in the temperature compensation value curve is used as a voltage value to be compensated. The embodiment considers the monitoring of the full value chain, and the monitoring can be carried out in a library. The scene of before-sale, after-sale, manufacture and the like can be applied. And in the acquired temperature compensation value curve, the voltage compensation value corresponding to the battery environment temperature is used as the voltage value to be compensated. Then, step S206 is executed to obtain a compensated open-circuit voltage OCV based on the voltage of the battery during the wake-up time and the voltage value offset to be compensated. In one embodiment, the lowest voltage of the storage battery in the wake-up time is used as the wake-up stage lowest voltage VBATmin, and the compensated open-circuit voltage OCV is obtained based on the wake-up stage lowest voltage VBATmin and the voltage value offset to be compensated. And executing step S207, and determining a corresponding effective state of charge based on the compensated open-circuit voltage and the battery ambient temperature. In one embodiment, the effective SOC value corresponding to the OCV is determined by acquiring an OCV-SOC curve corresponding to the ambient temperature of the battery according to the ambient temperature of the battery. Specifically, a temperature interval of the ambient temperature of the battery is determined, and an OCV-SOC curve corresponding to the temperature range is obtained. For example [ -25 ℃, 0 ℃) as one temperature interval, [0 ℃,25 ℃) as one temperature interval, [25 ℃, 40 ℃) as one temperature interval. An OCV-SOC curve corresponding to a temperature section in which the ambient temperature of the battery is located is obtained.
Finally, step S208 and step S209 are performed for comparison. Wherein, the state of charge threshold for comparison in step S208 is determined according to the pre-sale and post-sale stages of the vehicle.
This embodiment is through intelligent control battery, and the unable start scheduling problem of whole car is avoided to early warning battery life property risk, promotes the user and uses car to experience, promotes battery life. And finally, the quality of the whole life cycle of the battery is improved due to the fact that the full value chain of the battery is monitored.
Specifically, the degradation flag may be compensated for by changing the calculation of the effective state of charge.
In one embodiment, the determining the corresponding effective state of charge based on the compensated open-circuit voltage and the ambient temperature of the battery specifically includes:
acquiring an open-circuit voltage charge state relation curve corresponding to the ambient temperature of the battery;
if the storage battery is not judged to be degraded, taking the state of charge corresponding to the compensated open-circuit voltage in the open-circuit voltage state of charge relation curve as an effective state of charge;
and if the storage battery is judged to be degraded, taking the state of charge corresponding to the compensated open-circuit voltage in the open-circuit voltage state of charge relation curve as the state of charge to be calculated, and calculating the effective state of charge by subtracting a degraded state of charge compensation value from the state of charge to be calculated, wherein the degraded state of charge compensation value is larger than 0.
Compensation may also be achieved by varying the state of charge threshold based on the degradation flag.
In one embodiment, if the effective state of charge is smaller than the state of charge threshold, the performing a battery alarm operation specifically includes:
acquiring a state of charge threshold;
if the storage battery is judged to be degraded, increasing the state of charge threshold value by a degraded state of charge compensation value;
and if the effective state of charge is smaller than the state of charge threshold, executing a storage battery warning operation.
In one embodiment, the method further comprises the following steps: and if the storage battery is judged to be degraded, determining a degradation state according to the lowest voltage in the cold starting stage, and determining a degradation state of charge compensation value corresponding to the degradation state.
Fig. 3 shows a schematic diagram of a system according to a preferred embodiment of the present invention, which includes:
during cold start, the Intelligent Key controller (I-Key) 30 starts, acquires the voltage U _ Bat of the battery 31 during the time from the rising edge to the falling edge of the starter relay closing signal StartRelyOn, captures the voltage drop waveform of the battery by the ECU 32, calculates the minimum voltage VBmin between the starter relay closing signals, and uploads the minimum voltage VBmin to the internet of vehicles background server 34 through the TCU 33.
And under the whole car dormancy condition, after backend server 34 judges that the battery is in steady state, through long-range awakening TCU 33, TCU 33 gathers the voltage VBat of battery 31, awaken automobile Body Control Module (Body Control Module, BCM)35 simultaneously, BCM 35 passes through temperature sensor (T-sensor)36, returns battery ambient temperature to TCU 33 through the CAN, above-mentioned data upload backstage 34 through TCU, contrast the vehicle state, judge the threshold value of insufficient voltage, judge whether there is the risk of insufficient voltage.
Fig. 4 is a flowchart illustrating a method for monitoring a battery power shortage risk according to a preferred embodiment of the present invention, including:
during cold start:
step S401, the ECM calculates VBmin and forwards the VBmin to a TCU uploading background through a Gateway (GW);
step S402, performing background judgment, judging degradation if VBmin is less than the calibrated VBmin, and setting BAT _ DMG _ FLAG to be 1, otherwise, setting BAT _ DMG _ FLAG to be 0;
when the whole vehicle is dormant:
step S403, periodically requesting data packets for all vehicles;
step S404, if the locking time is more than T1 hours, executing step S405, otherwise, receiving;
step S405, if the vehicle is remotely waken up for the first T2 hours, ending, otherwise, executing step S406, preferably, the T1 is larger than the T2, for example, the T1 is 8 hours, and the T2 is half an hour;
step S406, requesting data, wherein the TCU responds to the background request to wake up the BCM, and after the BCM acquires the temperature, the TCU sends a data packet comprising the voltage VBat and the temperature in the storage battery wake-up time to the background;
and step S407, the background evaluates whether the storage battery is in power shortage, and if the storage battery is in power shortage, the mobile phone APP informs the track storage battery of the power shortage risk and suggests to start the engine for 10 minutes for charging.
Fig. 5 shows a power-shortage algorithm for a data background storage battery according to a preferred embodiment of the present invention, which includes:
step S501, calculating the minimum value of the voltage VBat in the acquired storage battery awakening time to obtain the lowest voltage VBATmin of an awakening stage;
step S502, based on the vehicle stage, determining a temperature compensation value curve, and based on the obtained temperature, determining a voltage value offset to be compensated;
step S503, obtaining a compensated open-circuit voltage based on the lowest voltage VBATmin of the wake-up stage and the voltage value offset to be compensated;
step S504, an OCV-SOC curve corresponding to temperature is obtained, and the state of charge corresponding to the compensated open-circuit voltage is calculated;
step S505, comparing the lowest voltage VBmin of the cold start stage during cold start with a voltage threshold value, and judging whether the storage battery is degraded;
step S506, if the storage battery is degraded, calculating effective state of charge as the state of charge to be calculated minus a degraded state of charge compensation value, and if the storage battery is not degraded, calculating effective state of charge as the state of charge to be calculated;
step S507, selecting a corresponding SOC threshold value based on the vehicle phase;
and step S508, if the effective state of charge is smaller than the SOC threshold value, alarming.
Fig. 6 is a schematic diagram of a hardware structure of an electronic device according to the present invention, which includes:
at least one processor 601; and the number of the first and second groups,
a memory 602 communicatively coupled to at least one of the processors 601; wherein the content of the first and second substances,
the memory 602 stores instructions executable by at least one of the processors to enable the at least one of the processors to perform a battery run-short risk monitoring method as described above.
In fig. 6, one processor 601 is taken as an example.
The electronic device may further include: an input device 603 and a display device 604.
The processor 601, the memory 602, the input device 603, and the display device 604 may be connected by a bus or other means, and are illustrated as being connected by a bus.
The memory 602, serving as a non-volatile computer-readable storage medium, may be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as program instructions/modules corresponding to the battery power shortage risk monitoring method in the embodiment of the present application, for example, the method flow shown in fig. 1. The processor 601 executes various functional applications and data processing by running nonvolatile software programs, instructions and modules stored in the memory 602, that is, implements the battery power shortage risk monitoring method in the above-described embodiment.
The memory 602 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the battery power shortage risk monitoring method, and the like. Further, the memory 602 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, memory 602 optionally includes memory remotely located from processor 601, and these remote memories may be connected over a network to a device that performs the battery power shortage risk monitoring method. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
Input device 603 may receive input from a user click and generate signal inputs related to user settings and function control of the battery power shortage risk monitoring method. The display device 604 may include a display screen or the like.
When the one or more modules are stored in the memory 602 and executed by the one or more processors 601, the method for monitoring the risk of insufficient battery power in any of the above-described method embodiments is performed.
According to the invention, the storage battery is intelligently monitored, the service life performance risk of the storage battery is early warned, the problems that the whole vehicle cannot be started and the like are avoided, the vehicle using experience of a user is improved, and the service life of the battery is prolonged. And finally, the quality of the whole life cycle of the battery is improved due to the fact that the full value chain of the battery is monitored.
An embodiment of the present invention provides a storage medium storing computer instructions for executing all the steps of the battery power shortage risk monitoring method as described above when a computer executes the computer instructions.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (15)
1. A method for monitoring the power shortage risk of a storage battery is characterized by comprising the following steps:
when the whole vehicle is dormant, periodically waking up the vehicle for a wake-up time to acquire the voltage of a vehicle storage battery in the wake-up time and the ambient temperature of the battery;
determining a corresponding effective state of charge based on the voltage of the storage battery within the wake-up time and the ambient temperature of the storage battery;
and if the effective state of charge is smaller than the state of charge threshold, executing the storage battery alarming operation.
2. The method for monitoring the power shortage risk of the storage battery according to claim 1, wherein the determining the corresponding effective state of charge based on the voltage of the storage battery in the wake-up time and the ambient temperature of the storage battery specifically comprises:
determining a voltage value to be compensated based on the battery environment temperature;
obtaining a compensated open-circuit voltage based on the voltage of the storage battery in the wake-up time and the voltage value to be compensated;
determining a corresponding effective state of charge based on the compensated open circuit voltage and the battery ambient temperature.
3. The method for monitoring the battery power shortage risk according to claim 2, wherein the step of obtaining the compensated open-circuit voltage based on the voltage of the battery in the wake-up time and the voltage value to be compensated specifically comprises:
taking the lowest voltage of the storage battery in the awakening time as the lowest voltage of the awakening stage;
and obtaining a compensated open-circuit voltage based on the lowest voltage of the wake-up stage and the voltage value to be compensated.
4. The method for monitoring the power shortage risk of the storage battery according to claim 2, wherein the determining the voltage value to be compensated based on the battery environment temperature specifically comprises:
obtaining a temperature compensation value curve corresponding to a pre-sale and post-sale stage of a vehicle, wherein the pre-sale and post-sale stage comprises: an after-sale stage, a private store storage stage and a factory storage stage;
and taking the voltage compensation value corresponding to the battery environment temperature in the temperature compensation value curve as a voltage value to be compensated.
5. The battery power shortage risk monitoring method according to claim 4, wherein:
under the same temperature, the temperature compensation value corresponding to the temperature compensation value curve in the after-sale stage is more than or equal to the temperature compensation value corresponding to the temperature compensation value curve in the special store storage stage;
and under the same temperature, the temperature compensation value corresponding to the temperature compensation value curve in the special store storage stage is greater than or equal to the temperature compensation value corresponding to the temperature compensation value curve in the factory storage stage.
6. The battery power shortage risk monitoring method according to claim 4, wherein if the effective state of charge is smaller than the state of charge threshold, performing a battery warning operation, specifically comprising:
acquiring a charge state threshold corresponding to a pre-sale and post-sale stage of a vehicle;
and if the effective state of charge is smaller than the state of charge threshold, executing a storage battery warning operation.
7. The battery power shortage risk monitoring method according to claim 6, wherein:
the charge state threshold corresponding to the after-sale stage is less than or equal to the charge state threshold corresponding to the special store storage stage;
the charge state threshold corresponding to the private store storage stage is less than or equal to the charge state threshold corresponding to the factory storage stage.
8. The battery power shortage risk monitoring method according to claim 2, further comprising:
in response to the cold start of the vehicle, determining the lowest voltage of the storage battery in the cold start process as the lowest voltage in the cold start stage;
and if the lowest voltage in the cold starting stage is lower than a preset voltage threshold, judging that the storage battery is degraded.
9. The method for monitoring the power shortage risk of the storage battery according to claim 8, wherein the determining the corresponding effective state of charge based on the compensated open-circuit voltage and the ambient temperature of the storage battery specifically comprises:
acquiring an open-circuit voltage charge state relation curve corresponding to the ambient temperature of the battery;
if the storage battery is not judged to be degraded, taking the state of charge corresponding to the compensated open-circuit voltage in the open-circuit voltage state of charge relation curve as an effective state of charge;
and if the storage battery is judged to be degraded, taking the state of charge corresponding to the compensated open-circuit voltage in the open-circuit voltage state of charge relation curve as the state of charge to be calculated, and calculating the effective state of charge by subtracting a degraded state of charge compensation value from the state of charge to be calculated, wherein the degraded state of charge compensation value is larger than 0.
10. The battery power shortage risk monitoring method according to claim 8, wherein if the effective state of charge is smaller than the state of charge threshold, performing a battery warning operation, specifically comprising:
acquiring a state of charge threshold;
if the storage battery is judged to be degraded, increasing the state of charge threshold value by a degraded state of charge compensation value;
and if the effective state of charge is smaller than the state of charge threshold, executing a storage battery warning operation.
11. The battery power shortage risk monitoring method according to claim 9 or 10, further comprising: and if the storage battery is judged to be degraded, determining a degradation state according to the lowest voltage in the cold starting stage, and determining a degradation state of charge compensation value corresponding to the degradation state.
12. The battery power shortage risk monitoring method according to claim 8, wherein the step of determining the lowest voltage of the battery in the cold start process as the lowest voltage in the cold start stage in response to the cold start of the vehicle specifically comprises:
starting to capture a voltage drop waveform of the storage battery in response to the starting of a starter relay closing signal;
stopping capturing the voltage drop waveform of the storage battery in response to the starter relay closing signal being turned off;
and taking the lowest voltage in the captured voltage drop waveform of the storage battery as the lowest voltage in the cold starting stage.
13. The battery power shortage risk monitoring method according to claim 1, wherein when the whole vehicle is in a sleep state, the vehicle is awakened periodically for an awakening time period, and the voltage of the vehicle battery and the ambient temperature of the battery in the awakening time period are acquired, specifically comprising:
when the whole vehicle is in dormancy, periodically judging whether a wake-up condition is met, wherein the wake-up condition is as follows: the vehicle locking time of the vehicle exceeds the first time, and the vehicle is not wakened up in the second time before the current time;
if the wake-up condition is met, the vehicle is waken up for a wake-up time period, and the voltage of the vehicle storage battery in the wake-up time and the ambient temperature of the battery are obtained.
14. An electronic device, comprising:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to at least one of the processors; wherein the content of the first and second substances,
the memory stores instructions executable by at least one of the processors to enable the at least one of the processors to perform the battery power shortage risk monitoring method of any one of claims 1 to 13.
15. A storage medium storing computer instructions for performing all the steps of the battery power shortage risk monitoring method according to any one of claims 1 to 13 when the computer executes the computer instructions.
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