CN115436816B - Method and device for supplementing electricity to storage battery, computer equipment and storage medium - Google Patents
Method and device for supplementing electricity to storage battery, computer equipment and storage medium Download PDFInfo
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- 230000005611 electricity Effects 0.000 title claims abstract description 17
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- 230000002618 waking effect Effects 0.000 claims description 7
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- 239000013589 supplement Substances 0.000 description 5
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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]
- G01R31/371—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
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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]
- G01R31/3644—Constructional arrangements
- G01R31/3646—Constructional arrangements for indicating electrical conditions or variables, e.g. visual or audible indicators
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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]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/387—Determining ampere-hour charge capacity or SoC
- G01R31/388—Determining ampere-hour charge capacity or SoC involving voltage measurements
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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]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
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Abstract
The application relates to a method and a device for supplementing electricity for a storage battery, computer equipment and a storage medium. The method comprises the following steps: acquiring working condition information of a storage battery; according to the working condition information, determining that the current storage battery meets the preset power supply requirement; according to the working condition information, dynamically adjusting a target power supply voltage value required to be output by the direct current power supply; and controlling the direct current power supply to execute the power supply supplementing process of the storage battery according to the target power supply supplementing voltage value through the BMS controller. The application adopts the dynamic adjustment of the power supply output voltage of the direct current power supply, adjusts the target voltage required to be output by the direct current power supply according to the real-time working condition information of the storage battery, automatically adjusts the charge quantity of the storage battery, prevents the direct current power supply from overcharging or rapidly charging the storage battery, and effectively prolongs the service life of the storage battery.
Description
Technical Field
The present application relates to the field of electric vehicles, and in particular, to a method and apparatus for supplementing electricity to a storage battery, a computer device, and a storage medium.
Background
With the development of electric automobiles, management and application of storage batteries are widely focused. The existing pure electric vehicles are generally provided with a 12V storage battery, and when the vehicle is basically in a starting state in the power supplementing strategy of the storage battery, the direct current power supply can be driven to output constant voltage to charge the storage battery.
However, as the requirements of the vast users on the endurance mileage of the electric automobile are higher and more electric equipment on the electric automobile is provided, the electric quantity of the storage battery is continuously consumed, and when the electric quantity of the storage battery is too low, the vehicle cannot be started again, and the vehicle can be restarted after the storage battery is charged. Therefore, for a vehicle enterprise, how to solve the problem of timely power supply of the storage battery and the problem that the vehicle can be started normally after long-term shutdown is one of the research and development concerns.
Disclosure of Invention
Based on the above, it is necessary to provide a method, an apparatus, a computer device and a storage medium for supplementing electricity to a storage battery, which can solve the technical problem that in the prior art, the electric quantity of the storage battery is too low to successfully restart the vehicle due to long-time non-dormancy or long-time non-use of the storage battery, dynamically adjust the target power supplementing voltage value required to be output by the direct-current power supply by using working condition information, effectively prevent the direct-current power supply from overcharging or rapidly charging the storage battery, and effectively improve the service life of the storage battery.
A battery electricity supplementing method is applied to a power domain controller, and comprises the following steps:
acquiring working condition information of a storage battery;
According to the working condition information, determining that the current storage battery meets the preset power supply requirement;
according to the working condition information, dynamically adjusting a target power supply voltage value required to be output by the direct current power supply; and
And controlling the direct current power supply to execute the power supply supplementing process of the storage battery according to the target power supply supplementing voltage value through the BMS controller.
In one embodiment, the operating condition information of the battery includes power information;
According to the working condition information, the step of determining that the current storage battery meets the preset power supply requirement comprises the following steps:
and comparing the electric quantity information with a preset threshold electric quantity, and if the electric quantity information is lower than the threshold electric quantity, judging that the current storage battery meets the preset power supply requirement.
In one embodiment, the working condition information of the storage battery comprises real-time electric quantity information and real-time temperature information;
the step of dynamically adjusting the target power supply voltage value required to be output by the direct current power supply according to the working condition information comprises the following steps:
and dynamically adjusting a target power supply voltage value required to be output by the direct-current power supply in a power supply flow according to the real-time electric quantity information, the real-time temperature information and a preset power supply voltage adjustment strategy.
In one embodiment, the step of dynamically adjusting the target power supply voltage value required to be output by the dc power supply in the power supply process includes:
Acquiring a first voltage value, a second voltage value, a third voltage value, a fourth voltage value and a threshold temperature range required by a power supply voltage adjustment strategy through a vehicle-mounted T-BOX, wherein the first voltage value is smaller than the second voltage value, the third voltage value is smaller than the fourth voltage value;
Judging whether the direct current power supply can fully charge the storage battery within a preset power supplementing time according to the third voltage value according to the electric quantity information;
If the first voltage value is full, the first voltage value is selected as a target power supply voltage value;
If the temperature information is not full, comparing the temperature information with a threshold temperature range, and acquiring a comparison result to select one of a second voltage value, a third voltage value and a fourth voltage value as a target electric voltage value according to the comparison result.
In one embodiment, if the temperature information is not full, comparing the temperature information with a threshold temperature range to obtain a comparison result, so as to select one of the second voltage value, the third voltage value and the fourth voltage value as the target complement point voltage value according to the comparison result, wherein the step of selecting the second voltage value, the third voltage value and the fourth voltage value includes:
When the temperature information is in the threshold temperature range, selecting a third voltage value as a target power supply voltage value;
when the temperature information is higher than the maximum value of the threshold temperature range, selecting the second voltage value as a target power-up voltage value;
And when the temperature information is lower than the lowest value of the threshold temperature range, selecting the fourth voltage value as a target power supply voltage value.
In one embodiment, the step of dynamically adjusting the target power supply voltage value required to be output by the dc power supply according to the working condition information includes:
and when the vehicle is in a dormant state or the vehicle is not used for a long time and the current storage battery is judged to meet the preset power supplementing requirement, waking up the power domain controller and the vehicle-mounted T-BOX so as to execute the power supplementing flow of the storage battery through the power domain controller and sending a power supplementing prompt to the user terminal through the vehicle-mounted T-BOX.
In one embodiment, the step of controlling the direct current power supply to perform the power supply process of the storage battery according to the target power supply voltage value by the BMS controller includes:
Sending a wake-up instruction to the BMS controller so that the BMS controller can transmit power-up feedback after determining that the power-up condition is met, and generating a power-up instruction according to the power-up feedback received in a preset time;
Sending a power-on instruction to the BMS controller so that the BMS controller controls the switch of the relay to be attracted according to the power-on instruction, so that the direct-current power supply is conducted with the storage battery, the storage battery is charged according to a target power-on voltage value which is dynamically adjusted, and a power-off instruction is generated when the storage battery does not meet a preset power-on requirement;
And sending a power-down instruction to the BMS controller so that the BMS controller controls the switch of the relay to be turned off to end the current compensation process.
An apparatus for supplementing electricity to a storage battery, the apparatus comprising:
the information acquisition module is used for acquiring the working condition information of the storage battery;
the power supply judging module is used for determining that the current storage battery meets the preset power supply requirement according to the working condition information;
The voltage adjusting module is used for dynamically adjusting a target power supply voltage value required to be output by the direct current power supply according to the working condition information;
And the power supply execution module is used for controlling the direct current power supply to execute the power supply flow of the storage battery according to the target power supply voltage value through the BMS controller.
A computer device comprising a memory storing a computer program and a processor which when executing the computer program performs the steps of:
acquiring working condition information of a storage battery;
According to the working condition information, determining that the current storage battery meets the preset power supply requirement;
according to the working condition information, dynamically adjusting a target power supply voltage value required to be output by the direct current power supply; and
And controlling the direct current power supply to execute the power supply supplementing process of the storage battery according to the target power supply supplementing voltage value through the BMS controller.
A computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
acquiring working condition information of a storage battery;
According to the working condition information, determining that the current storage battery meets the preset power supply requirement;
according to the working condition information, dynamically adjusting a target power supply voltage value required to be output by the direct current power supply; and
And controlling the direct current power supply to execute the power supply supplementing process of the storage battery according to the target power supply supplementing voltage value through the BMS controller.
The battery supplementing method, the device, the computer equipment and the storage medium have at least the following technical effects.
The power domain controller is determined to meet the preset power supply requirement by comparing the working condition information with the preset power supply requirement, so that the power domain controller is enabled to execute the power supply, otherwise, the power domain controller is in a dormant state after the whole vehicle is dormant, or is in a continuous working state, or is not used in the dormant state for a long time, and the power domain controller is enabled to be in an energy-saving dormant state by waking up the power domain controller, so that the low-voltage energy consumption in the driving process is effectively reduced, and the endurance mileage is improved.
Because the target power supply voltage value required to be output by the direct-current power supply is dynamically adjusted according to the working condition information, the power domain controller can acquire the target power supply voltage value required to be output by the direct-current power supply in the power supply process according to the real-time electric quantity information, the real-time temperature information and the preset power supply voltage adjustment strategy, so that the power domain controller needs to know the working condition information of the storage battery in real time in the power supply process, adjusts the target voltage required to be output by the direct-current power supply according to the real-time working condition information of the storage battery, automatically adjusts the charge quantity of the storage battery, prevents the direct-current power supply from overcharging or rapidly charging the storage battery, and effectively prolongs the service life of the storage battery.
Because this technical scheme is applicable to the long-time circumstances of parking of vehicle, consequently when the electric quantity of battery is too low, supply power for the battery through power domain controller is automatic to guarantee that the vehicle can normally start, and can promote the life of battery.
Because the vehicle-mounted T-BOX is adopted, the working condition information of the storage battery can be automatically pushed to the user terminal when the intelligent power supply is triggered, so that a user can be reminded of timely charging.
Because the power supply flow of the storage battery is controlled by the BMS controller according to the preset power supply strategy and is carried out according to the target power supply voltage value, after the vehicle is not used for a long time, when the electric quantity information meets the set threshold electric quantity requirement, the power domain controller is awakened, the output voltage of the DC power supply is dynamically selected in time through the power domain controller, and the BMS controller is further controlled to drive the DC power supply to supply power to the storage battery.
Drawings
Fig. 1 is a schematic structural diagram of a battery recharging system of the present embodiment;
fig. 2 is a flow chart of a method for supplementing electricity to a storage battery in the embodiment;
FIG. 3 is a logic flow diagram of a low voltage wake-up strategy in the present embodiment;
FIG. 4 is a schematic diagram of a logic flow for dynamically adjusting a target power supply voltage value in the present embodiment;
FIG. 5 is a schematic diagram of a logic diagram for performing a current compensation process according to the present embodiment;
Fig. 6 is a block diagram of a battery recharging device according to the present embodiment.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
The method for supplementing electricity of the storage battery can be applied to an application environment shown in figure 1. As shown in fig. 1, fig. 1 is a schematic structural frame diagram of a battery recharging system according to the present embodiment. The electric system of mending of this battery can be applied to on the pure electric automobile, and the electric system of mending of this battery can include:
The power domain controller 10 (PDCS for short), the data acquisition device 30, the BMS controller 20 (which belongs to a main control unit on the battery management system BMS of the electric automobile), the relay 50, the storage battery 40 and the direct current power supply 60 (DCDC for short), wherein the power domain controller 10 is respectively connected with the data acquisition device 30 and the BMS controller 20, the BMS controller 20 is connected with the relay 50, the relay 50 is arranged between the direct current power supply 60 and the storage battery 40, and the main positive and the main negative of a switch of the relay 50 are respectively connected with the direct current power supply 60 and the storage battery 40.
The power domain controller 10 is an intelligent powertrain management unit, which implements transmission management, engine management, battery monitoring, and alternator regulation through CAN/FLEXRAY, and CAN calculate and distribute torque for various power system units (such as an internal combustion engine, a motor/generator, a battery, and a gearbox), implement CO2 emission reduction through a pre-determined driving strategy, and implement a communication gateway, etc., and is generally used for optimizing and controlling a powertrain, and simultaneously has functions of electrical intelligent fault diagnosis, intelligent power saving, bus communication, etc. In the embodiment, the power domain controller is used for controlling the battery management system of the electric automobile to realize the method for supplementing electricity to the storage battery. The power domain controller is triggered to wake up the power domain controller based on preset wake-up conditions when the data acquisition equipment acquires the working condition information, and further wakes up the BMS controller to enable the BMS controller to drive the switch of the relay to be in attraction, so that the direct-current power supply is driven to supplement electricity for the storage battery.
Based on the above-mentioned battery power supplementing system, an embodiment of the battery power supplementing method of the present invention is provided. Referring to fig. 2, fig. 2 is a flow chart of a method for supplementing electricity to a storage battery according to the present embodiment.
In one embodiment, a method for supplementing power to a storage battery is provided, and the method is applied to the power domain controller in fig. 1 for illustration, and includes the following steps:
step S100, working condition information of a storage battery is obtained;
step S200, determining that the current storage battery meets the preset power supply requirement according to the working condition information;
step S300, dynamically adjusting a target power supply voltage value required to be output by the direct current power supply according to the working condition information;
step S400, the direct current power supply is controlled by the BMS controller to execute the power supply process of the storage battery according to the target power supply voltage value.
In step S100, the operating condition information of the battery is acquired. Further, the power domain controller in the embodiment is connected with the data acquisition equipment, the data acquisition equipment can adopt the intelligent parameter sensor of the storage battery, and the intelligent parameter sensor is arranged in the storage battery to acquire the working condition information including current, temperature, voltage and electric quantity in the storage battery, so that the condition that the sensor with a single function is adopted for measuring one by one is avoided, and the condition of changing the parameters of the storage battery can be obtained without manual measurement on site.
It should be noted that, the power supply method of the storage battery in this embodiment is applied to the power domain controller of the new energy electric automobile, the vehicle state is not limited to the vehicle start or the vehicle sleep state, and even if the vehicle is in the sleep or long-term unused state, the power domain controller is woken up when the power supply requirement in this embodiment is satisfied, and of course, if the vehicle is not in sleep and the power domain controller is not in sleep, the power domain controller is directly utilized to execute the power supply procedure.
The operating condition information of the battery includes power information. In step S200, according to the working condition information, the step of determining that the current storage battery meets the preset power supply requirement includes:
and comparing the electric quantity information with a preset threshold electric quantity, and if the electric quantity information is lower than the threshold electric quantity, judging that the current storage battery meets the preset power supply requirement.
Specifically, acquiring real-time electric quantity information; comparing the real-time electric quantity information with a preset threshold electric quantity; if the electric quantity information is lower than the threshold electric quantity, judging that the current storage battery meets the preset power supply requirement, otherwise, returning to continuously receiving the electric quantity information.
In step S300, the step of dynamically adjusting the target power supply voltage value required to be output by the dc power supply according to the working condition information includes:
and when the vehicle is in a dormant state or the vehicle is not used for a long time and the current storage battery is judged to meet the preset power supplementing requirement, waking up the power domain controller and the vehicle-mounted T-BOX so as to execute the power supplementing flow of the storage battery through the power domain controller and sending a power supplementing prompt to the user terminal through the vehicle-mounted T-BOX.
Specifically, before the power domain controller executes the power compensation process according to the power compensation strategy, the power domain controller needs to be ensured to be in an un-dormant state, and if the power domain controller is in the dormant state, the power domain controller needs to be awakened in advance. In this step, two cases are given for triggering the wake-up power domain controller. As shown in fig. 5, a preset timing wake-up strategy is shown for a TSP of an automotive remote service provider, for example, after a vehicle performs flameout (IGN OFF), whether the whole vehicle is dormant is judged according to the preset timing wake-up strategy, if the whole vehicle is in a dormant State, the power domain controller is woken up by a whole vehicle electric system sensor (also called a battery direct current sensor IBS), and then whether the power domain controller is woken up successfully is judged again, if the wake-up is successful, the State of Charge (SOC) is detected by the power domain controller, and the soc= (residual power/rated power) is 100%; otherwise, after feedback, continuously judging whether the whole vehicle is in a dormant state or not; if the whole vehicle is not in a dormant state and a node on the vehicle network is working or the power domain controller is not dormant, the power domain controller is not required to be awakened, and the available state of residual charge in the current vehicle battery at the side is directly detected through the power domain controller.
Another is a trigger wakeup mechanism preset for a power domain controller. The wake-up mechanism shown in fig. 3 includes a preset threshold condition, and when the working condition information received in real time meets the threshold condition, the power domain controller is woken up, and a current compensation procedure is executed by the power domain controller according to a power compensation strategy. The step of triggering the wake-up mechanism in this embodiment includes: and receiving electric quantity information, comparing the electric quantity information with a preset threshold electric quantity, and if the electric quantity information is lower than the threshold electric quantity, waking up the power domain controller, judging that the current storage battery meets a preset power supply requirement through the power domain controller, and further executing a power supply process according to a preset power supply strategy.
Further, the embodiment further includes waking up the vehicle-mounted T-BOX after waking up the power domain controller, except executing the current compensation process according to the power compensation strategy, transmitting current working condition information to the user terminal through the vehicle-mounted T-BOX, and reminding the user to charge the electric automobile in time after receiving and pushing the working condition information of the storage battery through the user terminal.
The working condition information of the storage battery comprises real-time electric quantity information and real-time temperature information.
In step S300, the step of dynamically adjusting the target power supply voltage value required to be output by the dc power supply according to the working condition information includes:
and dynamically adjusting a target power supply voltage value required to be output by the direct-current power supply in a power supply flow according to the real-time electric quantity information, the real-time temperature information and a preset power supply voltage adjustment strategy.
Further, the step S300, before the step of dynamically adjusting the target power supply voltage value required to be output by the dc power supply in the power supply flow, includes:
Acquiring a first voltage value, a second voltage value, a third voltage value, a fourth voltage value and a threshold temperature range required by a power supply voltage adjustment strategy through a vehicle-mounted T-BOX, wherein the first voltage value is smaller than the second voltage value, the third voltage value is smaller than the fourth voltage value; for example, the first voltage value is 13.5V, the second voltage value is 14.0V, the third voltage value is 14.4V, and the fourth voltage value is 14.8V. For example, the threshold temperature range is 10℃to 40 ℃.
Judging whether the direct current power supply can fully charge the storage battery within a preset power supplementing time according to the third voltage value according to the electric quantity information;
If the first voltage value is full, the first voltage value is selected as a target power supply voltage value;
If the temperature information is not full, comparing the temperature information with a threshold temperature range, and acquiring a comparison result to select one of a second voltage value, a third voltage value and a fourth voltage value as a target electric voltage value according to the comparison result.
It can be seen that, in this embodiment, in order to improve the service life of the storage battery, and avoid the safety risk caused by the excessive charging of the storage battery, the power supply voltage adjustment policy in this embodiment sets a plurality of determination conditions, and sets different target power supply voltage values according to different determination conditions, so that the direct current power supply selects different target power supply voltage values according to different determination conditions, and further, the power domain controller dynamically adjusts the target power supply voltage values required to be output by the direct current power supply in the power supply process according to the electric quantity information and the temperature information received in real time in the power supply process.
If the temperature information cannot be fully filled, comparing the temperature information with a threshold temperature range to obtain a comparison result, and selecting one of the second voltage value, the third voltage value and the fourth voltage value as a target complement point voltage value according to the comparison result comprises the following steps:
When the temperature information is in the threshold temperature range, selecting a third voltage value as a target power supply voltage value;
when the temperature information is higher than the maximum value of the threshold temperature range, selecting the second voltage value as a target power-up voltage value;
And when the temperature information is lower than the lowest value of the threshold temperature range, selecting the fourth voltage value as a target power supply voltage value.
Specifically, as shown in fig. 4, according to the real-time electric quantity information, the temperature information and the preset power supply voltage adjustment strategy, the step of dynamically adjusting the target power supply voltage value required to be output by the dc power supply in the power supply flow includes:
Judging whether the direct current power supply can fully charge the storage battery within a preset power supplementing time according to the third voltage value according to the electric quantity information;
if the temperature is full, selecting the first voltage value as a target power supply voltage value, otherwise, comparing the temperature information with a threshold temperature range, and outputting a comparison result so as to select according to the comparison result; wherein,
When the temperature information is in the threshold temperature range, selecting a third voltage value as a target power supply voltage value;
when the temperature information is higher than the maximum value of the threshold temperature range, selecting the second voltage value as a target power-up voltage value;
And when the temperature information is lower than the lowest value of the threshold temperature range, selecting the fourth voltage value as a target power supply voltage value.
Referring to fig. 5, in step S400, the steps of controlling the direct current power source to perform the power recharging process of the storage battery according to the target power recharging voltage value by the BMS controller include:
Sending a wake-up instruction to the BMS controller so that the BMS controller can transmit power-up feedback after determining that the power-up condition is met, and generating a power-up instruction according to the power-up feedback received in a preset time;
Sending a power-on instruction to the BMS controller so that the BMS controller controls the switch of the relay to be attracted according to the power-on instruction, so that the direct-current power supply is conducted with the storage battery, the storage battery is charged according to a target charging voltage value which is dynamically adjusted, and a power-off instruction is generated when the storage battery does not meet a preset charging requirement;
And sending a power-down instruction to the BMS controller so that the BMS controller controls the switch of the relay to be turned off to end the current compensation process.
Based on the power domain controller power supply flow, the steps of the BMS controller in executing the battery power supply flow can be known to include:
and after the wake-up instruction sent by the power domain controller is received and the storage battery is determined to meet the power-up condition, power-up feedback is transmitted to the power domain controller, so that the power domain controller generates a power-up instruction according to the power-up feedback received in a preset time.
Further, according to the wake-up instruction, program initialization is executed, it is determined that the storage battery meets the power-up condition, and power-up feedback is transmitted to the power domain controller within a preset time period, so that the power domain controller generates a power-up instruction according to the power-up feedback received within the preset time period;
Receiving a power-on instruction sent by the power domain controller in a preset time, controlling the switch attraction of a relay between the direct-current power supply and the storage battery according to the power-on instruction, so that after the direct-current power supply is conducted with the storage battery, supplementing electricity to the storage battery according to a target power-on voltage value, dynamically adjusting the target power-on voltage value according to electric quantity information and temperature information acquired in the preset power-on time by the power domain controller, and generating a power-off instruction when the electric quantity information exceeds a threshold electric quantity;
and receiving a power-down instruction sent by the power domain controller, or controlling the switch of the relay to be turned off when the switch suction time of the relay exceeds the preset power-up time so as to end the power-up process.
In step S400, the step of controlling, by the power domain controller, the direct current power supply to supplement power to the storage battery according to the target power supplement voltage value through the BMS controller according to the power supplement strategy, further includes:
and judging whether the current electric quantity information of the storage battery is smaller than or equal to the threshold electric quantity, if so, entering a power supplementing flow, otherwise, exiting intelligent power supplementing. Wherein the threshold power may be set to 61%.
After sending the wake-up instruction to the BMS controller, judging whether the BMS controller receives the wake-up instruction. Wherein, the wake-up instruction is: PDCS_WakeUp\u BatCharge = 0x1: batCharge Wakeup.
After the BMS controller executes program initialization according to the wake-up instruction, judging whether the BMS controller is successfully initialized, if not, exiting intelligent power supply, otherwise judging whether the BMS controller meets the power supply condition, and if the BMS controller meets the power supply condition, controlling the BMS controller to generate power supply feedback so that the BMS controller waits for acquiring a power-on instruction. Wherein, the power-up feedback is: BMS_WakeUp\u BatCharge =0x1. In one embodiment, the power up condition of the BMS controller is that hardware devices associated with the BMS controller include a relay, a battery, a dc power source, and each hardware device and a line between the hardware devices are operating normally.
Judging whether power-up feedback is received within a preset time, if so, transmitting the generated power-up instruction to the BMS controller, otherwise, exiting intelligent power-up; after the BMS controller receives the power-on instruction, judging whether the power-on instruction is received within a preset time, if yes, driving a switch of the relay to be attracted, and if not, exiting intelligent power-on. Wherein, the power-on instruction is: pdcs_ ControlHVDischarge =0x1: connect). In this embodiment, the feedback time of the power-up feedback and the power-up instruction is set to ensure normal communication of the circuit, and if the power-up feedback or the power-up instruction is received within a predetermined time, the circuit between the power domain controller and the BMS controller may fail, resulting in delay.
The main positive and the main negative of the relay switch in the embodiment are respectively connected with a direct current power supply and a storage battery, and when the main positive and the main negative are in suction, the direct current power supply intelligently supplements electricity for the storage battery according to a target electricity supplementing voltage value set by the power domain controller for the direct current power supply.
The electric quantity information and the temperature information of the storage battery are dynamically changed along with the progress of the power supply stage, so that the power domain controller dynamically adjusts the target power supply voltage value according to the electric quantity information and the temperature information acquired in the preset power supply time, namely the output target voltage is continuously adjusted according to actual conditions in the power supply process of the direct current power supply, and the power supply process of the storage battery is completed in the shortest possible time.
And the power domain controller judges whether the current storage battery meets the preset power supply requirement in real time according to the acquired working condition information, and continues to supply power when the current storage battery meets the power supply requirement, or else, the intelligent power supply is stopped, namely, the current storage battery meets the intelligent power supply stopping condition, and then a power-off instruction is generated. Wherein, the power-down instruction is: pdcs_ ControlHVDischarge =0x0:disconnect; and pulls the wake-up level low.
And judging whether the BMS controller receives a power-down instruction sent by the power domain controller or whether the switching-on and switching-off time of the relay exceeds a preset power-on supplementing time, for example, 60 minutes, if so, controlling the switch of the relay to be turned off, and if not, keeping the power-on supplementing state. And the BMS controller enters a sleep state after a time for controlling the switch of the relay to be turned off exceeds a predetermined time. After the switch of the relay is controlled by the BMS controller to be turned off, the power domain controller enters a dormant state when the time for sending a power-down instruction to the BMS controller exceeds a preset time or when the time for receiving the switch of the relay controlled by the BMS controller to be turned off exceeds a preset time.
In the method for supplementing the storage battery, the comparison between the working condition information and the preset threshold electric quantity is adopted, so that the current storage battery is determined to meet the preset power supplementing requirement, and then the power domain controller is enabled to execute power supplementing, otherwise, the power domain controller can be continuously in a dormant state of energy saving and electricity saving, and further low-voltage energy consumption in the driving process is effectively reduced, and the endurance mileage is improved.
Because the target power supply voltage value required to be output by the direct-current power supply is dynamically adjusted according to the working condition information, the power domain controller can acquire the target power supply voltage value required to be output by the direct-current power supply in the power supply process according to the real-time electric quantity information, the temperature information and the preset power supply voltage adjustment strategy, so that the power domain controller needs to know the working condition information of the storage battery in real time in the power supply process, adjusts the target voltage required to be output by the direct-current power supply according to the real-time working condition information of the storage battery, automatically adjusts the charging electric quantity of the storage battery, prevents the direct-current power supply from overcharging or rapidly charging the storage battery, effectively prolongs the service life of the storage battery, and can timely output the floating charge voltage to reduce the energy consumption after the storage battery is full.
Because this technical scheme is applicable to the long-time circumstances of parking of vehicle, consequently when the electric quantity of battery is too low, supply power for the battery through power domain controller is automatic to guarantee that the vehicle can normally start, and can promote the use of battery.
Because the vehicle-mounted T-BOX is adopted, the working condition information of the storage battery can be automatically pushed to the user terminal when the intelligent power supply is triggered, so that a user can be reminded of timely charging.
Because the power supply flow of the storage battery is controlled by the BMS controller according to the preset power supply strategy and is carried out according to the target power supply voltage value, after the vehicle is not used for a long time, when the electric quantity information meets the set threshold electric quantity requirement, the power domain controller is awakened, the output voltage of the DC power supply is dynamically selected in time through the power domain controller, and the BMS controller is further controlled to drive the DC power supply to supply power to the storage battery.
In one embodiment, as shown in fig. 6, there is provided a power supplementing device for a storage battery, including: the system comprises an information acquisition module, a power compensation judging module, a voltage adjusting module and a power compensation executing module, wherein:
the information acquisition module is used for acquiring the working condition information of the storage battery;
the power supply judging module is used for determining that the current storage battery meets the preset power supply requirement according to the working condition information;
The voltage adjusting module is used for dynamically adjusting a target power supply voltage value required to be output by the direct current power supply according to the working condition information;
And the power supply execution module is used for controlling the direct current power supply to execute the power supply flow of the storage battery according to the target power supply voltage value through the BMS controller.
The specific limitation of the power supplementing device of the storage battery can be referred to the limitation of the power supplementing method of the storage battery, and the description is omitted here. The modules in the battery recharging device can be realized in whole or in part by software, hardware and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, a computer device is provided, which may be a server. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the computer device is used for storing the power supplementing method data of the storage battery. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by the processor to implement a method of recharging a battery.
In one embodiment, a computer device is provided, which may be a terminal. The computer device includes a processor, a memory, a network interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by the processor to implement a method of recharging a battery. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, can also be keys, a track ball or a touch pad arranged on the shell of the computer equipment, and can also be an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the block diagram structures presented herein are merely block diagrams of partial structures associated with the inventive arrangements and do not constitute a limitation of the computer device to which the inventive arrangements may be applied, and that a particular computer device may include more or less components than those shown in the drawings, or may combine some of the components, or have a different arrangement of components.
In one embodiment, a computer device is provided comprising a memory and a processor, the memory having stored therein a computer program, the processor when executing the computer program performing the steps of:
acquiring working condition information of a storage battery;
According to the working condition information, determining that the current storage battery meets the preset power supply requirement;
According to the working condition information, dynamically adjusting a target power supply voltage value required to be output by the direct current power supply;
And controlling the direct current power supply to execute the power supply supplementing process of the storage battery according to the target power supply supplementing voltage value through the BMS controller.
In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of:
acquiring working condition information of a storage battery;
According to the working condition information, determining that the current storage battery meets the preset power supply requirement;
According to the working condition information, dynamically adjusting a target power supply voltage value required to be output by the direct current power supply;
And controlling the direct current power supply to execute the power supply supplementing process of the storage battery according to the target power supply supplementing voltage value through the BMS controller.
Those skilled in the art will appreciate that implementing all or part of the above-described methods in accordance with the embodiments may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (SYNCHLINK) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (8)
1. A method for supplementing electricity to a storage battery, applied to a power domain controller, characterized in that the method comprises the following steps:
acquiring working condition information of a storage battery;
determining that the current storage battery meets a preset power supply requirement according to the working condition information;
according to the working condition information, dynamically adjusting a target power supply voltage value required to be output by the direct current power supply; and
Controlling the direct current power supply to execute a power supply process of the storage battery according to the target power supply voltage value through a BMS controller;
the working condition information of the storage battery comprises real-time electric quantity information and real-time temperature information;
According to the working condition information, the step of dynamically adjusting the target power supply voltage value required to be output by the direct current power supply comprises the following steps:
dynamically adjusting a target power supply voltage value required to be output by the direct current power supply in the power supply flow according to the real-time electric quantity information, the real-time temperature information and a preset power supply voltage adjustment strategy;
The step of dynamically adjusting the target power supply voltage value required to be output by the direct current power supply in the power supply flow comprises the following steps:
acquiring a first voltage value, a second voltage value, a third voltage value, a fourth voltage value and a threshold temperature range required by a power supply voltage adjustment strategy through a vehicle-mounted T-BOX, wherein the first voltage value is smaller than the second voltage value, the third voltage value is smaller than the fourth voltage value;
Judging whether the direct current power supply can fully charge the storage battery within a preset power supplementing time according to the third voltage value according to the electric quantity information;
If the first voltage value can be fully charged, the first voltage value is selected as the target power supply voltage value;
If the temperature information cannot be fully charged, comparing the temperature information with the threshold temperature range, and acquiring a comparison result to select one of the second voltage value, the third voltage value and the fourth voltage value as the target power supply voltage value according to the comparison result.
2. The method for recharging a battery according to claim 1, wherein the operating condition information of the battery includes electric quantity information;
According to the working condition information, the step of determining that the current storage battery meets the preset power supply requirement comprises the following steps:
And comparing the electric quantity information with a preset threshold electric quantity, and if the electric quantity information is lower than the threshold electric quantity, judging that the current storage battery meets a preset power supply requirement.
3. The method according to claim 1, wherein if the battery cannot be charged, the step of comparing the temperature information with the threshold temperature range to obtain a comparison result, so as to select one of the second voltage value, the third voltage value, and the fourth voltage value as the target charging voltage value according to the comparison result, comprises:
When the temperature information is in the threshold temperature range, selecting the third voltage value as the target power supply voltage value;
When the temperature information is higher than the maximum value of the threshold temperature range, selecting the second voltage value as the target power supply voltage value;
and when the temperature information is lower than the lowest value of the threshold temperature range, selecting the fourth voltage value as the target power supply voltage value.
4. The method according to claim 1, wherein the step of dynamically adjusting the target power supply voltage value of the output required by the dc power supply according to the operating condition information comprises:
And when the vehicle is flameout and the whole vehicle is judged to be in a dormant state, or when the vehicle is not used for a long time and the current storage battery is judged to meet the preset power supply requirement, waking up the power domain controller and the vehicle-mounted T-BOX so as to execute the power supply flow of the storage battery through the power domain controller, and sending a power supply prompt to the user terminal through the vehicle-mounted T-BOX.
5. The method of claim 1, wherein the step of controlling the dc power source to perform the power recharging process of the battery according to the target power recharging voltage value by the BMS controller comprises:
Sending a wake-up instruction to the BMS controller so that the BMS controller can transmit power-up feedback after determining that the power-up condition is met, and generating a power-up instruction according to the power-up feedback received in a preset time;
The power-on instruction is sent to the BMS controller, so that the BMS controller controls the switch of a relay to be attracted according to the power-on instruction, the direct-current power supply is conducted with the storage battery, the storage battery is charged according to the target charging voltage value which is dynamically adjusted, and a power-off instruction is generated when the storage battery does not meet the preset charging requirement;
And sending a power-down instruction to the BMS controller so that the BMS controller controls the switch of the relay to be disconnected, and ending the power-up flow.
6. A battery recharging device, the device comprising:
the information acquisition module is used for acquiring the working condition information of the storage battery;
The power supply judging module is used for determining that the current storage battery meets the preset power supply requirement according to the working condition information;
the voltage adjusting module is used for dynamically adjusting a target power supply voltage value required to be output by the direct current power supply according to the working condition information;
The power supply executing module is used for controlling the direct-current power supply to execute the power supply process of the storage battery according to the target power supply voltage value through the BMS controller;
the working condition information of the storage battery comprises real-time electric quantity information and real-time temperature information;
The voltage adjustment module is used for dynamically adjusting a target power supply voltage value required to be output by the direct current power supply in the power supply flow according to the real-time electric quantity information, the real-time temperature information and a preset power supply voltage adjustment strategy;
Before the voltage adjustment module dynamically adjusts a target power supply voltage value required to be output by the direct-current power supply in the power supply flow, the power supply device of the storage battery acquires a first voltage value, a second voltage value, a third voltage value, a fourth voltage value and a threshold temperature range required by a power supply voltage adjustment strategy through a vehicle-mounted T-BOX, wherein the first voltage value is smaller than the second voltage value, the third voltage value is smaller than the fourth voltage value; judging whether the direct current power supply can fully charge the storage battery within a preset power supplementing time according to the third voltage value according to the electric quantity information; if the first voltage value can be fully charged, the first voltage value is selected as the target power supply voltage value; if the temperature information cannot be fully charged, comparing the temperature information with the threshold temperature range, and acquiring a comparison result to select one of the second voltage value, the third voltage value and the fourth voltage value as the target power supply voltage value according to the comparison result.
7. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any one of claims 1 to 5 when the computer program is executed.
8. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 5.
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