CN113561918A - Intelligent power supplementing method and system for storage battery of electric vehicle - Google Patents
Intelligent power supplementing method and system for storage battery of electric vehicle Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 114
- 230000001502 supplementing effect Effects 0.000 title claims abstract description 86
- 230000008569 process Effects 0.000 claims abstract description 78
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- 230000005611 electricity Effects 0.000 claims description 38
- 238000004590 computer program Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 7
- 230000008901 benefit Effects 0.000 claims description 6
- 230000002618 waking effect Effects 0.000 claims description 6
- 239000002253 acid Substances 0.000 description 11
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The invention discloses an intelligent power supplementing method and system for an electric automobile storage battery, wherein the method comprises the following steps: detecting the state of charge of the storage battery through a storage battery sensor; and if the state of charge is lower than a first preset state threshold value, awakening the vehicle body controller through the storage battery sensor, and entering a power supply process based on awakening of the storage battery sensor. According to the invention, the residual electric quantity of the storage battery is detected by detecting the charge state of the storage battery through the storage battery sensor, the residual electric quantity of the storage battery can be accurately judged, and the storage battery is supplemented when the charge state of the storage battery is lower than the first preset state threshold value, so that the storage battery can be prevented from being lack of power, and the phenomenon of mistaken power supplement or untimely power supplement is avoided.
Description
Technical Field
The invention relates to the technical field of electric automobiles, in particular to an intelligent power supplementing method and system for an electric automobile storage battery.
Background
New energy automobile obtains rapid development under the national policy encouragement, no matter be pure electric vehicles, increase form hybrid vehicle, insert electric formula hybrid vehicle or fuel cell car, all need to assemble a low voltage battery, such as lithium cell or lead acid battery, come to start and high-voltage power supply for whole car, simultaneously when the vehicle parks the network sleep, this low voltage battery provides quiescent current consumption for vehicle low-voltage electrical apparatus, thereby guarantee the normal operating of the remote control function (for example remote mobile phone control opens the air conditioner), the detection of vehicle state (for example the inside aerosol sensor of battery package is periodically from awakening up and detecting battery safety condition), vehicle intelligent function (for example the rainfall light sensor is periodically from awakening up and detecting whether it is rainy thus close skylight, door and window etc.).
Generally, the capacity of a low-voltage storage battery of a new energy automobile is relatively small, so that the phenomenon of power shortage is easily caused, and the automobile cannot be normally unlocked and cannot be started.
Disclosure of Invention
The embodiment of the invention provides an intelligent power supplementing method and system for an electric vehicle storage battery, solves the technical problem of power shortage of a low-voltage storage battery in the prior art, can accurately judge the residual power of the low-voltage storage battery and supplement power to the low-voltage storage battery when the residual power is low, and avoids power shortage.
In one aspect, the present invention provides the following technical solutions through an embodiment of the present invention:
an intelligent power supplementing method for an electric vehicle storage battery comprises the following steps:
detecting a state of charge of the battery by a battery sensor;
and if the state of charge is lower than a first preset state threshold value, awakening the vehicle body controller through the storage battery sensor, and entering a power supply process based on awakening of the storage battery sensor.
After the detecting the state of charge of the battery by the battery sensor, the method further comprises:
and taking the finishing time or the quitting time of the previous power supply process as a timing starting point for timing, if the timing duration reaches a first preset duration, autonomously waking up the vehicle body controller, and entering a power supply process based on autonomous waking up.
Preferably, the current compensation process comprises:
if a first condition is met, awakening the whole vehicle through the vehicle body controller, wherein the first condition comprises that the vehicle body controller is successfully awakened;
if the whole vehicle meets a second condition, switching on the power supply voltage of the storage battery, wherein the second condition comprises that the whole vehicle is successfully awakened;
if the power supplementing voltage is successfully connected, supplementing power to the storage battery;
and if a third condition is met, completing the power supplement of the storage battery, wherein the third condition comprises that the state of charge is not less than a second preset state threshold value.
Preferably, if the vehicle body controller wakes up the storage battery sensor at the current moment, the first condition includes:
and the time interval between the finishing moment of the last electricity supplementing process based on the awakening of the storage battery sensor and the current moment is greater than a second preset time length.
Preferably, the second condition includes: the power supply mode of the electric automobile is in a closed state, the front hatch cover of the electric automobile is closed, and the electric automobile is not in a software remote upgrading mode.
Preferably, the third condition further includes: and the duration that the charging current of the storage battery sensor is smaller than the preset current threshold reaches a third preset duration or the duration that the storage battery is supplied with power reaches a fourth preset duration.
Preferably, after the supply voltage of the battery is turned on if the entire vehicle satisfies the second condition, the supply current process further includes: if the power supply voltage fails to be connected, adding one to the power supply failure times;
if the power supplementing voltage is successfully connected, the power supplementing process further comprises the following steps of supplementing power to the storage battery: clearing the power supply failure times;
the first condition includes: and the electricity supplementing failure times are less than the preset failure times.
Preferably, if the power supply voltage is successfully connected, after the power supply of the storage battery, the current supply process further includes:
and if the user is detected to start the electric automobile in the power supplementing process, the power supplementing to the storage battery is quitted.
On the other hand, the invention also provides the following technical scheme:
an electric automobile battery intelligent power supply system comprises:
the charge state detection module is used for detecting the charge state of the storage battery through a storage battery sensor;
and the current compensation control module is used for awakening the vehicle body controller through the storage battery sensor and entering a current compensation process based on awakening of the storage battery sensor if the state of charge is lower than a first preset state threshold value.
Preferably, after the state of charge detection module detects the state of charge of the storage battery through the storage battery sensor, the current compensation control module is further configured to count time by using the completion time or the exit time of the previous power compensation process as a timing starting point, and if the counted time reaches a first preset time, the vehicle body controller is autonomously waken up to enter a power compensation process based on the autonomous wakening up.
Preferably, in the current compensation control module, the current compensation process includes:
if a first condition is met, awakening the whole vehicle through the vehicle body controller, wherein the first condition comprises that the vehicle body controller is successfully awakened;
if the whole vehicle meets a second condition, switching on the power supply voltage of the storage battery, wherein the second condition comprises that the whole vehicle is successfully awakened;
if the power supplementing voltage is successfully connected, supplementing power to the storage battery;
and if a third condition is met, completing the power supplement of the storage battery, wherein the third condition comprises that the state of charge is not less than a second preset state threshold value.
Preferably, if the vehicle body controller wakes up the storage battery sensor at the current moment, the first condition includes:
and the time interval between the finishing moment of the last electricity supplementing process based on the awakening of the storage battery sensor and the current moment is greater than a second preset time length.
Preferably, the second condition includes: the power supply mode of the electric automobile is in a closed state, the front hatch cover of the electric automobile is closed, and the electric automobile is not in a software remote upgrading mode.
Preferably, the third condition further includes: and the duration that the charging current of the storage battery sensor is smaller than the preset current threshold reaches a third preset duration or the duration that the storage battery is supplied with power reaches a fourth preset duration.
Preferably, in the current compensation control module, after the vehicle meets a second condition and the current compensation voltage of the battery is turned on, the current compensation process further includes: if the power supply voltage fails to be connected, adding one to the power supply failure times;
if the power supplementing voltage is successfully connected, the power supplementing process further comprises the following steps of supplementing power to the storage battery: clearing the power supply failure times;
the first condition includes: and the electricity supplementing failure times are less than the preset failure times.
On the other hand, the invention also provides the following technical scheme:
an electronic device comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein when the processor executes the program, the intelligent power supplementing method for the storage battery of any electric vehicle is realized.
On the other hand, the invention also provides the following technical scheme:
a computer readable storage medium, which when executed, implements any one of the above-mentioned intelligent electric vehicle storage battery power supplementing methods.
One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:
the residual capacity of the storage battery is detected by detecting the state of charge of the storage battery through the storage battery sensor, the residual capacity of the storage battery can be accurately judged, the storage battery is charged when the state of charge of the storage battery is lower than a first preset state threshold value, the storage battery can be prevented from being lack of power, and the situation that the power is charged by mistake or is not timely is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a flow chart of an intelligent power supplementing method for an electric vehicle storage battery according to the invention;
FIG. 2 is a flow chart of the power supplement process of the present invention;
fig. 3 is a structural block diagram of the intelligent power supply system for the storage battery of the electric vehicle.
Detailed Description
The embodiment of the invention provides an intelligent power supplementing method for an electric automobile storage battery, and solves the technical problem of low-voltage storage battery power shortage in the prior art.
In order to solve the technical problems, the embodiment of the invention has the following general idea:
an intelligent power supplementing method for an electric vehicle storage battery comprises the following steps:
detecting the state of charge of the storage battery through a storage battery sensor;
and if the state of charge is lower than a first preset state threshold value, awakening the vehicle body controller through the storage battery sensor, and entering a power supply process based on awakening of the storage battery sensor.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
First, it is stated that the term "and/or" appearing herein is merely one type of associative relationship that describes an associated object, meaning that three types of relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
As shown in fig. 1, the intelligent power supplement method for the electric vehicle storage battery of the embodiment includes:
step S1, detecting the state of charge of the storage battery through a storage battery sensor;
and step S2, if the state of charge is lower than a first preset state threshold value, awakening the vehicle body controller through the storage battery sensor, and entering a power supply process based on awakening of the storage battery sensor.
The storage batteries described in this embodiment are all low-voltage storage batteries, and can be lithium batteries or lead-acid storage batteries.
In step S1, a battery sensor (EBS) is mounted on the negative electrode of the battery, the state of charge (SOC) of the battery is accurately obtained by detecting the terminal voltage, the charging and discharging current, and the temperature of the battery and calculating using an algorithm, the accuracy of the SOC is ensured by the battery sensor by performing static learning or dynamic learning, and the algorithm for calculating the SOC using the terminal voltage, the charging and discharging current, and the temperature is a mature scheme and is not described here. The storage battery sensor has a self-awakening function, the charge state of the storage battery can be detected in real time or periodically, the storage battery sensor can be awakened all the time due to real-time detection, the working current of the storage battery sensor during self-awakening is large, the average current consumption in the vehicle sleeping process can be large, the charge state of the storage battery can be detected periodically by the storage battery sensor preferably in the embodiment for reducing the average current consumption in the vehicle sleeping process, and the period can be 1 min.
In step S2, if the state of charge of the battery is lower than the first preset state threshold, it indicates that the electric quantity of the battery is low, and if the electric quantity is not compensated in time, the electric quantity may be insufficient, and at this time, the vehicle Body Controller (BCM) is waken up by the battery sensor, and the power compensation process based on the battery sensor wakening up is entered. Still install high-voltage battery in the general electric automobile, can charge low pressure battery, the benefit electricity flow is the process of supplementing electricity to the battery through high-voltage battery, can mend the electricity when the battery electric quantity is lower. Like this, this embodiment detects the residual capacity of battery through the state of charge that battery sensor detected the battery, can accurately judge the residual capacity of battery to when the state of charge of battery is less than first preset state threshold value, to mend the electricity to the battery, can avoid the battery to appear lacking in power, avoid the mistake to mend the electricity or mend the electricity untimely.
The first preset state threshold value can be adjusted according to the capacity of the storage battery and the static power consumption condition of the whole vehicle, and can take different values, such as 75%.
In addition, for detecting the residual electric quantity of the storage battery, the embodiment can also consider the detection of the power supply voltage of the vehicle body controller, and when the power supply voltage is detected to be lower than a set alarm threshold value, the whole vehicle network is awakened and the high-voltage power is connected for power supplement. However, because the line from the storage battery to the vehicle body controller is relatively long, and the voltage drop caused by the line resistance of the lead is considered, the power supply voltage detected by the vehicle body controller is lower than the actual voltage of the storage battery, and the situation that the storage battery is not lack of power and the power is wrongly supplemented occurs; in addition, if the storage battery is a lead-acid storage battery, the lead-acid storage battery has the electrolyte layering phenomenon, and the electrolyte layering changes the relation between voltage and the state of charge, so that the electric quantity error of the lead-acid storage battery detected by the voltage is large, the condition that the lead-acid storage battery is insufficient in power but is not supplemented with power can occur, and the power supplement is not timely. In the embodiment, the residual electric quantity is judged by detecting the charge state of the storage battery, so that the residual electric quantity of the storage battery can be accurately judged, the error electricity supplement is avoided, and the untimely electricity supplement is avoided when the storage battery is a lead-acid storage battery.
In this embodiment, the storage battery sensor may not successfully complete static learning or dynamic learning, which may result in that it is difficult to accurately detect the state of charge, and further the power shortage state of the storage battery cannot be accurately determined, and the vehicle body controller may not be awakened by the storage battery sensor for a long time, so that the power supplement process based on awakening of the storage battery sensor cannot be entered, and the intelligent power supplement method fails.
In order to solve the above problem, in this embodiment, after step S1, the method for intelligently supplementing power to the storage battery further includes: and taking the finishing time or the quitting time of the previous electricity supplementing process as a timing starting point for timing, if the timing duration reaches a first preset duration, automatically waking up the vehicle body controller, and entering an electricity supplementing process based on the automatic waking up.
The current compensation process of the embodiment can be divided into a power compensation process based on storage battery sensor wake-up and a power compensation process based on autonomous wake-up, and the only difference between the two processes is that the wake-up means of the vehicle body controller is different, wherein the former is storage battery sensor wake-up, and the latter is autonomous wake-up. The completion time or the exit time of the previous power supply process is used as a timing starting point to time, and the timing time reaches a first preset time, which can be understood as the time when the first preset time passes after the previous power supply is completed or exits. The last electricity supplementing process can be an electricity supplementing process based on awakening of the storage battery sensor or an electricity supplementing process based on autonomous awakening. It can be understood that if the storage battery sensor fails all the time, entering an electricity supplementing process based on autonomous awakening is equivalent to a first preset time period; if the last power supplementing flow is the power supplementing flow based on the autonomous awakening, the last power supplementing flow is the power supplementing flow based on the awakening of the storage battery sensor, and the current power supplementing flow is the power supplementing flow based on the autonomous awakening, the time interval between the last power supplementing flow and the current power supplementing flow is a first preset time length, and the time interval between the two power supplementing flows based on the autonomous awakening is certainly longer than the first preset time length. The completion time is the time when the power supply is successfully completed, the exit time is the time when the power supply is started after the high voltage is applied, but the power supply is not successfully completed due to some reasons and exits halfway, and some reasons can be that the user starts the vehicle during the power supply process. In this embodiment, if the battery sensor fails to learn and results in the fact that the vehicle body controller cannot be waken up, the vehicle body controller can be waken up autonomously and the battery can be replenished after the last power replenishment is completed or quit and the first preset time is passed, so that the battery can be replenished actively in time when the battery is not replenished for a long time, and the battery is prevented from being insufficient due to the failure of the battery sensor.
The first preset time length can be 12h, and can also be determined according to actual needs.
Specifically, as shown in fig. 2, the power supply process based on the battery sensor wake-up or the power supply process based on the autonomous wake-up includes:
step S21, if a first condition is met, the whole vehicle is awakened through the vehicle body controller, and the first condition comprises that the vehicle body controller is successfully awakened;
step S22, if the whole vehicle meets a second condition, the power supply voltage of the storage battery is switched on, and the second condition comprises that the whole vehicle is successfully awakened;
step S23, if the power supply voltage is successfully connected, the storage battery is supplied with power;
and step S24, completing the electricity supplement of the storage battery if a third condition is met, wherein the third condition comprises that the state of charge of the storage battery is not less than a second preset state threshold.
The state of charge is not less than a second preset state threshold, which represents that the residual capacity of the storage battery is high, so that the purpose of power supplement is achieved, the power supplement of the storage battery can be completed, namely the power supplement is finished, and the second preset state threshold can be 100%. The power supplementing process based on the awakening of the storage battery sensor comprises the following steps: when the EBS detects that the SOC of the storage battery is lower than 75%, the BCM is awakened through the LIN bus, the SOC sent by the EBS is judged to be lower than 75% after the BCM is awakened, the BCM sends a network management message to awaken the whole vehicle, the BCM continuously sends a signal to request the high voltage on a Vehicle Control Unit (VCU), namely, the power supply voltage is connected, the storage battery is supplied with power through the high voltage, and the power supply process is finished after the power supply is successfully completed; the electricity supplementing process based on autonomous awakening comprises the following steps: when the storage battery is not supplied with power continuously for 12 hours, the BCM wakes up autonomously, sends a network management message to wake up the whole vehicle, continuously sends a signal to request the high voltage on a Vehicle Control Unit (VCU), namely, the power supply voltage is connected, the storage battery is supplied with power through the high voltage, and the power supply process is finished after the power supply is completed successfully.
In step S24, it is also conceivable that the power supply is terminated depending on the detected voltage reaching the threshold requirement, but when the battery is a lead-acid battery, the voltage of the lead-acid battery rises rapidly during charging, and the voltage of the battery after charging drops after standing, and if the power supply is completed depending on the detected voltage reaching the threshold requirement during the power supply due to the existence of the battery floating voltage, the battery cannot be fully charged. In this embodiment, when the state of charge of the storage battery is not less than the second preset state threshold, the power supply is finished, so that the full power supply of the storage battery can be ensured when the storage battery is a lead-acid storage battery.
Wherein the third condition may further include: and the duration that the charging current of the storage battery sensor is smaller than the preset current threshold reaches a third preset duration or the duration that the storage battery is supplemented with electricity reaches a fourth preset duration. The duration that the charging current of the storage battery sensor is smaller than the preset current threshold reaches a third preset duration, which represents that the charging current is insufficient, and the power supply of the storage battery cannot be continuously maintained, so that the power supply can be normally finished when the charging current is insufficient. And the duration of the power supplement of the storage battery reaches a fourth preset time, namely the power supplement can be normally finished when the preset power supplement time is reached. Wherein the preset current threshold value can be 0.5A, and the third preset time period can be 15 min; when the power supplementing process is based on the awakening of the storage battery sensor, the fourth preset time period can be 2 hours; when the power supplementing process is based on the autonomous wake-up, the fourth preset time period may be 0.5 h.
Generally, under a low-temperature environment or after the storage battery is aged, the charge receiving capacity of the storage battery is reduced, the electric quantity of the storage battery does not rise much relative to that before power supplement after the power supplement duration reaches a set threshold and the power supplement is terminated, in a power supplement process based on awakening of a storage battery sensor, the last power supplement is completed, and the charge state is detected again to be lower than the first preset state threshold after a short time interval, so that the power supplement process based on awakening of the storage battery sensor is started again, and the electric energy consumption of the whole vehicle and the service life of a high-voltage system are influenced.
In order to solve the above problem, in this embodiment, preferably, if the vehicle body controller wakes up for the storage battery sensor at the current time, the first condition includes: and the time interval between the completion moment of the last electricity supplementing process based on the awakening of the storage battery sensor and the current moment is greater than a second preset time length. When the state of charge is detected to be lower than a first preset state threshold value, if the time of the current moment and the last electricity supplementing flow process based on storage battery sensor awakening does not reach a second preset time, the whole vehicle cannot be awakened, the reduction of the charging receiving capacity of the storage battery caused by factors such as storage battery aging and low-temperature environment can be avoided, the electricity supplementing condition is frequently started, and the influence on the electric energy consumption of the whole vehicle and the service life of a high-voltage system is avoided.
The second preset time length may be 12h, or may be determined according to actual needs.
For safety reasons, when the front hatch of the electric automobile is opened, high voltage is not allowed to be applied, and the storage battery can be recharged only in a state that the automobile is powered off and dormant and software is not remotely upgraded, so that the second condition comprises the following steps: the power supply mode of the electric automobile is in a closed state, the front hatch cover of the electric automobile is closed, and the electric automobile is not in a software remote upgrading mode.
In this embodiment, awaken whole car when detecting that the residual capacity of battery is too low, request to go up high pressure and mend the electricity, if fail to go up high pressure normally because of high-voltage system trouble, BCM can awaken whole car and repeat and mend the electricity always, aggravate the insufficient voltage of battery. In order to solve the above problem, in this embodiment, preferably, after the supply voltage of the battery is turned on when the vehicle satisfies the second condition, the supply current process further includes: if the power supply voltage fails to be connected, adding one to the power supply failure times; if the power supplementing voltage is successfully connected, the power supplementing process further comprises the following steps of supplementing power to the storage battery: clearing the power supply failure times; the first condition includes: the power supply failure times are less than the preset failure times. Therefore, when the number of times of continuous high-voltage failure reaches the preset failure number, the BCM does not awaken the whole vehicle network, the electric energy consumption of the storage battery is reduced, and the aggravated power shortage is avoided. If the power supply voltage is failed to be connected, the current supply process based on the storage battery sensor awakening is not completed for the current time, if the last power supply process based on the storage battery sensor awakening corresponding to the current time is the nth power supply process, and because the current time is not completed based on the storage battery sensor awakening, the vehicle body controller is awakened for the next time, the current supply process based on the storage battery sensor awakening for the last time is still the nth power supply process, the completion time of the last power supply process based on the storage battery sensor awakening corresponding to the current time is the nth completion time, and the time interval is certainly longer than the second preset time length, so that the whole vehicle can be directly awakened.
The preset failure times can be 3 times and can also be determined according to actual needs.
As mentioned above, the power supply needs to be performed in a power-off sleep state of the vehicle, so that the user needs to quit the power supply if the user starts the vehicle. In this embodiment, if the power supply voltage is successfully turned on, after the power supply of the storage battery is performed, the current supply process further includes: and if the user is detected to start the electric automobile in the power supplementing process, the power supplementing to the storage battery is quitted. Thus, the power supply process can be quitted when the user starts the vehicle. And if the storage battery sensor fails to supply power within the first preset time, taking the timing starting point based on the power supply flow based on the autonomous awakening as the exit moment for exiting to supply power to the storage battery next time.
This embodiment still provides an electric automobile battery intelligence benefit system, as shown in fig. 3, includes: the charge state detection module is used for detecting the charge state of the storage battery through a storage battery sensor;
and the current compensation control module is used for awakening the vehicle body controller through the storage battery sensor and entering a current compensation process based on awakening of the storage battery sensor if the state of charge is lower than a first preset state threshold value.
The electric automobile battery intelligence benefit system of this embodiment detects the residual capacity of battery through the state of charge that battery sensor detected the battery, can accurately judge the residual capacity of battery to when the state of charge of battery is less than first preset state threshold value, to the battery mend the electricity, can avoid the battery to appear insufficient voltage, avoid mistake benefit electricity or mend the electricity untimely.
Furthermore, after the state of charge detection module detects the state of charge of the storage battery through the storage battery sensor, the current compensation control module is also used for timing by taking the finishing time or the quitting time of the previous power compensation process as a timing starting point, and if the timing duration reaches a first preset duration, the vehicle body controller is awakened autonomously to enter the power compensation process based on autonomous awakening. If the storage battery sensor is unsuccessfully learned and cannot wake up the automobile body controller, the automobile body controller can be autonomously waken up and the storage battery can be replenished after the last electricity replenishing is completed or quit and the first preset time is passed, so that the storage battery can be timely and actively replenished when the storage battery is not replenished for a long time, and the storage battery is prevented from being insufficient due to failure of the storage battery sensor.
Further, in the current compensation control module, the current compensation process includes:
if the first condition is met, awakening the whole vehicle through the vehicle body controller, wherein the first condition comprises that the vehicle body controller is successfully awakened; if the whole vehicle meets a second condition, the power supply voltage of the storage battery is switched on, and the second condition comprises that the whole vehicle is successfully awakened; if the power supplementing voltage is successfully connected, the storage battery is supplemented; and if the third condition is met, completing the power supplement of the storage battery, wherein the third condition comprises that the state of charge is not less than a second preset state threshold value. Therefore, the electricity supplementing of the storage battery can be realized through the process, the electricity supplementing is finished when the charge state of the storage battery is not less than the second preset state threshold value, and the full charge supplementing of the storage battery can be ensured when the storage battery is a lead-acid storage battery.
If the vehicle body controller is awakened by the storage battery sensor at the current moment, the first condition comprises that: and the time interval between the completion moment of the last electricity supplementing process based on the awakening of the storage battery sensor and the current moment is greater than a second preset time length. If the time of the last electricity supplementing process based on storage battery sensor awakening does not reach the second preset time at the current moment, the whole vehicle cannot be awakened, the reduction of the charging receiving capacity of the storage battery caused by factors such as storage battery aging and low-temperature environment can be avoided, the electricity supplementing condition is frequently started, and the influence on the electric energy consumption of the whole vehicle and the service life of a high-voltage system is avoided.
The second condition includes: the power supply mode of the electric automobile is in a closed state, the front hatch cover of the electric automobile is closed, and the electric automobile is not in a software remote upgrading mode.
The third condition further includes: and the duration that the charging current of the storage battery sensor is smaller than the preset current threshold reaches a third preset duration or the duration that the storage battery is supplemented with electricity reaches a fourth preset duration.
In the current compensation control module, if the whole vehicle meets the second condition, after the current compensation voltage of the storage battery is switched on, the current compensation process further comprises the following steps: if the power supply voltage fails to be connected, adding one to the power supply failure times; if the power supplementing voltage is successfully connected, the power supplementing process further comprises the following steps of supplementing power to the storage battery: clearing the power supply failure times; the first condition includes: the power supply failure times are less than the preset failure times. Therefore, when the number of times of continuous high-voltage failure reaches the preset failure number, the BCM does not awaken the whole vehicle network, the electric energy consumption of the storage battery is reduced, and the aggravated power shortage is avoided.
Based on the same inventive concept as the foregoing intelligent power supplement method for an electric vehicle battery, this embodiment further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of any one of the foregoing intelligent power supplement methods for an electric vehicle battery when executing the program.
Where a bus architecture (represented by a bus) is used, the bus may comprise any number of interconnected buses and bridges that link together various circuits including one or more processors, represented by a processor, and memory, represented by a memory. The bus may also link various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface provides an interface between the bus and the receiver and transmitter. The receiver and transmitter may be the same element, i.e., a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor is responsible for managing the bus and general processing, while the memory may be used for storing data used by the processor in performing operations.
Since the electronic device described in this embodiment is an electronic device used for implementing the intelligent power supplement method for the electric vehicle storage battery in the embodiment of the present invention, based on the intelligent power supplement method for the electric vehicle storage battery described in the embodiment of the present invention, a person skilled in the art can understand a specific implementation manner of the electronic device in this embodiment and various variations thereof, and therefore, how to implement the method in the embodiment of the present invention by the electronic device is not described in detail here. As long as the person skilled in the art implements the electronic equipment adopted by the intelligent power supplementing method for the storage battery of the electric vehicle in the embodiment of the invention, the electronic equipment belongs to the protection scope of the invention.
Based on the same inventive concept as the intelligent power supplementing method for the electric automobile storage battery, the invention also provides a computer readable storage medium, and when being executed, the computer readable storage medium realizes any one of the intelligent power supplementing methods for the electric automobile storage battery.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An intelligent power supplementing method for an electric vehicle storage battery is characterized by comprising the following steps:
detecting the state of charge of the storage battery through a storage battery sensor;
and if the state of charge is lower than a first preset state threshold value, awakening the vehicle body controller through the storage battery sensor, and entering a power supply process based on awakening of the storage battery sensor.
2. The intelligent power supplementing method for the storage battery of the electric vehicle according to claim 1, wherein after the state of charge of the storage battery is detected through the storage battery sensor, the method further comprises the following steps:
and taking the finishing time or the quitting time of the previous power supply process as a timing starting point for timing, if the timing duration reaches a first preset duration, autonomously waking up the vehicle body controller, and entering a power supply process based on autonomous waking up.
3. The intelligent power supplementing method for the storage battery of the electric automobile according to claim 2, wherein the power supplementing process comprises the following steps:
if a first condition is met, awakening the whole vehicle through the vehicle body controller, wherein the first condition comprises that the vehicle body controller is successfully awakened;
if the whole vehicle meets a second condition, switching on the power supply voltage of the storage battery, wherein the second condition comprises that the whole vehicle is successfully awakened;
if the power supplementing voltage is successfully connected, supplementing power to the storage battery;
and if a third condition is met, completing the power supplement of the storage battery, wherein the third condition comprises that the state of charge is not less than a second preset state threshold value.
4. The intelligent power supplementing method for the storage battery of the electric vehicle as claimed in claim 3, wherein if the vehicle body controller wakes up for the storage battery sensor at the current moment, the first condition comprises:
and the time interval between the finishing moment of the last electricity supplementing process based on the awakening of the storage battery sensor and the current moment is greater than a second preset time length.
5. The intelligent power supplementing method for the storage battery of the electric automobile according to claim 3, wherein the second condition comprises: the power supply mode of the electric automobile is in a closed state, the front hatch cover of the electric automobile is closed, and the electric automobile is not in a software remote upgrading mode.
6. The intelligent power supplementing method for the storage battery of the electric vehicle as set forth in claim 3, wherein the third condition further comprises: and the duration that the charging current of the storage battery sensor is smaller than the preset current threshold reaches a third preset duration or the duration that the storage battery is supplied with power reaches a fourth preset duration.
7. The intelligent power supplementing method for the storage battery of the electric vehicle as claimed in claim 3, wherein the current supplementing process further comprises the following steps after the power supplementing voltage of the storage battery is turned on if the whole vehicle meets the second condition: if the power supply voltage fails to be connected, adding one to the power supply failure times;
if the power supplementing voltage is successfully connected, the power supplementing process further comprises the following steps of supplementing power to the storage battery: clearing the power supply failure times;
the first condition includes: and the electricity supplementing failure times are less than the preset failure times.
8. The utility model provides an electric automobile battery intelligence benefit electric system which characterized in that includes:
the charge state detection module is used for detecting the charge state of the storage battery through a storage battery sensor;
and the current compensation control module is used for awakening the vehicle body controller through the storage battery sensor and entering a current compensation process based on awakening of the storage battery sensor if the state of charge is lower than a first preset state threshold value.
9. An electronic device, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement the intelligent electric vehicle battery recharging method according to any one of claims 1-7.
10. A computer-readable storage medium, wherein the computer-readable storage medium, when executed, implements the intelligent electric vehicle battery recharging method of any one of claims 1-7.
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