CN114678920A - Storage battery charging control method and device and electric automobile - Google Patents
Storage battery charging control method and device and electric automobile Download PDFInfo
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- CN114678920A CN114678920A CN202111059079.1A CN202111059079A CN114678920A CN 114678920 A CN114678920 A CN 114678920A CN 202111059079 A CN202111059079 A CN 202111059079A CN 114678920 A CN114678920 A CN 114678920A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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Abstract
The invention provides a storage battery charging control method, a storage battery charging control device and an electric automobile, and relates to the technical field of electric automobiles, wherein the storage battery charging control method comprises the following steps: and under the condition that the storage battery enters a charging state, judging whether the storage battery is in a full charging state or not according to at least one of the current charging current acquisition state, the temperature acquisition state, the charging current, the residual capacity, the temperature and the charging time of the storage battery. The scheme of the invention finely controls the charging of the storage battery, and reduces the power shortage risk of the storage battery and the power consumption of the vehicle.
Description
Technical Field
The invention belongs to the technical field of electric automobiles, and particularly relates to a storage battery charging control method and device and an electric automobile.
Background
The existing intelligent control of the storage battery is based on the residual capacity and the health state of the storage battery provided by an intelligent storage battery sensor, but the influence of distinguishing the ambient temperature on the charging characteristics of the storage battery is not considered, for example, the problem that the storage battery cannot be fully charged at low temperature due to small charging current of the storage battery in winter is solved, so that the storage battery is insufficient; or the charging time of the storage battery at the normal temperature is too long, so that the power consumption of the vehicle is increased.
Disclosure of Invention
The embodiment of the invention aims to provide a storage battery charging control method and device and an electric automobile, so as to solve the problem that the charging characteristic of a storage battery is greatly influenced by the environmental temperature in the prior art.
In order to achieve the above object, an embodiment of the present invention provides a battery charging control method applied to a vehicle control unit, including:
and under the condition that the storage battery enters a charging state, judging whether the storage battery is in a full charging state or not according to at least one of the current charging current acquisition state, the temperature acquisition state, the charging current, the residual electric quantity, the temperature and the charging time of the storage battery.
Optionally, determining whether the storage battery is in a fully charged state according to at least one of a current charging current collection state, a temperature collection state, a charging current, a remaining power amount, a temperature, and a charging time of the storage battery, including:
under the condition that the charging current collection state is normal, judging whether the storage battery is in a full charge state or not according to the temperature collection state, the charging current and the charging time;
and under the condition that the charging current acquisition state is abnormal, judging whether the storage battery is in a full charge state or not according to the residual electric quantity and the charging time.
Optionally, when the charging current collection state is a normal current collection state, determining whether the storage battery is in a fully charged state according to the temperature collection state, the charging current, and the charging time, including:
under the condition that the charging current collection state is normal current collection and the temperature collection state is normal temperature collection, when the temperature is greater than a first temperature threshold value and the charging current is continuously smaller than the first current threshold value within a first time, judging that the storage battery is in a fully charged state;
under the condition that the charging current collection state is normal current collection and the temperature collection state is normal temperature collection, when the temperature is less than or equal to the first temperature threshold and the charging current is continuously less than the first current threshold within the first time after the second time, judging that the storage battery is in a fully charged state;
and after the second time, when the charging current is continuously smaller than the first current threshold value in the first time, judging that the storage battery is in a fully charged state.
Optionally, when the charging current collection state is a current collection abnormality, determining whether the storage battery is in a full charge state according to the remaining power and the charging time includes:
and when the residual electric quantity is kept unchanged in the third time, judging that the storage battery is in a fully charged state.
Optionally, the method further comprises:
when the vehicle is in an awakening state, acquiring the residual electric quantity;
and when the residual electric quantity is smaller than the charge starting threshold value, guiding the vehicle to be electrified at high voltage, and controlling the storage battery to enter a charge state.
Optionally, when the remaining capacity is less than the charge starting threshold, guiding the vehicle to power on at high voltage, and controlling the storage battery to enter a charge state, including:
when the residual electric quantity is smaller than a charging starting threshold value, detecting the door lock state of the vehicle body and the state of the power battery;
and guiding the vehicle to be electrified at high voltage according to the door lock state of the vehicle body and the state of the power battery, and controlling the storage battery to enter a charging state through a direct current conversion unit.
Optionally, the method further comprises:
and when the storage battery is in a fully charged state, controlling the storage battery to exit the charged state and guiding the vehicle to discharge under high voltage.
An embodiment of the present invention further provides a storage battery charging control apparatus, including:
and the judging module is used for judging whether the storage battery is in a full charge state or not according to at least one of the current charging current acquisition state, the temperature acquisition state, the charging current, the residual electric quantity, the temperature and the charging time of the storage battery under the condition that the storage battery enters the charging state.
Optionally, the determining module includes:
the first judgment unit is used for judging whether the storage battery is in a full charge state or not according to the temperature acquisition state, the charging current and the charging time under the condition that the charging current acquisition state is normal;
and the second judging unit is used for judging whether the storage battery is in a fully charged state or not according to the residual electric quantity and the charging time under the condition that the charging current acquisition state is abnormal.
Optionally, the first determining unit is specifically configured to:
under the condition that the charging current collection state is normal current collection and the temperature collection state is normal temperature collection, when the temperature is greater than a first temperature threshold value and the charging current is continuously smaller than the first current threshold value within a first time, the storage battery is judged to be in a fully charged state;
Under the condition that the charging current collection state is normal current collection and the temperature collection state is normal temperature collection, when the temperature is less than or equal to the first temperature threshold and after a second time, the charging current is continuously less than the first current threshold within the first time, and the storage battery is judged to be in a full-charge state;
and after the second time, when the charging current is continuously smaller than the first current threshold value in the first time, judging that the storage battery is in a fully charged state.
Optionally, the second determining unit is specifically configured to:
and when the charging residual capacity is kept unchanged in the third time, judging that the storage battery is in a full charge state.
Optionally, the apparatus further comprises:
the acquisition module is used for acquiring the residual electric quantity when the vehicle is in an awakening state;
and the first control module is used for guiding the vehicle to be electrified at high voltage and controlling the storage battery to enter a charging state when the residual electric quantity is smaller than a charging starting threshold value.
Optionally, the first control module is specifically configured to:
When the residual electric quantity is smaller than a charging starting threshold value, detecting the door lock state of the vehicle body and the power battery state;
and guiding the vehicle to be electrified at high voltage according to the door lock state of the vehicle body and the state of the power battery, and controlling the storage battery to enter a charging state through a direct current conversion unit.
Optionally, the apparatus further comprises:
and the second control module is used for controlling the storage battery to exit from a charging state and guiding the vehicle to conduct high-voltage reduction when the storage battery is in a full-charging state.
The embodiment of the invention also provides an electric automobile which comprises the storage battery charging control device.
An embodiment of the present invention further provides a readable storage medium, where a program is stored, and when the program is executed by a processor, the storage battery charging control method is implemented.
The technical scheme of the invention at least has the following beneficial effects:
in the above scheme, the storage battery charging control method judges whether the storage battery is in a full charge state or not according to at least one of the current charging current collection state, the temperature collection state, the charging current, the residual electric quantity, the temperature and the charging time of the storage battery under the condition that the storage battery enters the charging state, so that the storage battery can be fully charged to the maximum extent, the power shortage risk is avoided, the service life of the storage battery is effectively prolonged, and the user experience is improved.
Drawings
FIG. 1 is a flow chart of a method for controlling battery charging according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a battery charge control system according to an embodiment of the present invention;
FIG. 3 is a second flowchart of a battery charging control method according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a battery charge control apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention provides a storage battery charging control method and device and an electric automobile, aiming at the problem that the influence of environmental temperature on the charging characteristic of a storage battery is large in the prior art.
As shown in fig. 1, an embodiment of the present invention provides a battery charging Control method applied to a VCU (Vehicle Control Unit), including:
It should be noted that the storage Battery charging Control method provided in the embodiment of the present invention CAN be applied to a storage Battery charging Control System as shown in fig. 2, where a VCU is connected to a BMS (Battery Management System), a BCM (Body Control Management System), and a DCDC (direct current conversion unit) through a CAN (Controller Area Network) line, the BCM is connected to an IBS (Intelligent storage Battery Sensor) through a LIN (Local Interconnect Network) line, the DCDC is connected to the power Battery and the storage Battery through a wire harness, and the IBS is connected to the storage Battery Sensor through a wire harness.
The IBS can accurately measure monitoring parameters such as voltage, current and pole temperature of the storage battery, and the residual capacity and the battery health state are calculated based on the monitoring parameters, so that the storage battery charging control method provided by the embodiment of the invention can correct the battery health state of the storage battery, identify the attenuation condition of the storage battery in advance, avoid the intelligent charging failure of the storage battery, effectively prolong the service life of the storage battery and further improve the user experience.
In addition, the IBS awakens the BCM through an LIN line, feeds back the current charging current acquisition state, the current temperature acquisition state, the current charging current, the residual electric quantity and the current temperature of the storage battery to the BCM through the LIN line and uploads the current charging current acquisition state, the current temperature acquisition state, the current charging current, the residual electric quantity and the current temperature to the CAN line through the BCM, so that the VCU CAN acquire the current charging current acquisition state, the current temperature acquisition state, the current charging, the residual current and the current temperature of the storage battery through the CAN line; when the storage battery enters a charging state, the charging time is recorded. In addition, the BCM detects a front hatch state of the vehicle and feeds back the front hatch state to the VCU through the CAN line.
It should be further noted that the storage battery in the embodiment of the present invention is a low-voltage storage battery; the charging current is the charging and discharging current of the storage battery.
According to the embodiment of the invention, under the condition that the storage battery enters the charging state, whether the storage battery is in the full charging state or not is judged according to at least one of the current charging current acquisition state, the temperature acquisition state, the charging current, the residual electric quantity, the temperature and the charging time of the storage battery, so that the storage battery can be fully charged to the greatest extent, the power shortage risk is avoided, the service life of the storage battery is effectively prolonged, and the user experience is improved.
Optionally, in step 101, determining whether the storage battery is in a fully charged state according to at least one of a current charging current collection state, a current temperature collection state, a charging current, a remaining power amount, a temperature, and a charging time of the storage battery, including:
under the condition that the charging current collection state is normal, judging whether the storage battery is in a full charge state or not according to the temperature collection state, the charging current and the charging time;
and under the condition that the charging current acquisition state is abnormal, judging whether the storage battery is in a full charge state or not according to the residual electric quantity and the charging time.
It should be noted that, when the current charging current collection state of the storage battery is that current collection is normal, that is, the charging current provided by the storage battery is effective, whether full charge is available can be judged according to the charging current; when the current charging current collection state of the storage battery is abnormal current collection, namely the charging current improved by the storage battery is invalid, whether the storage battery is fully charged or not can not be judged according to the charging current of the storage battery, and whether the storage battery is fully charged or not can be judged based on the residual capacity and the charging time of the storage battery in order to improve the robustness of a storage battery charging control system, so that the storage battery can be fully charged, and the power shortage risk of the storage battery is reduced.
Specifically, under the condition that the charging current collection state is that the current collection is normal, according to the temperature collection state, the charging current and the charging time, whether the storage battery is in a full charge state is judged, including:
under the condition that the charging current collection state is normal in current collection and the temperature collection state is normal in temperature collection, when the temperature is greater than a first temperature threshold value and the charging current is continuously smaller than the first current threshold value within a first time, the storage battery is judged to be in a full-charge state;
under the condition that the charging current collection state is normal current collection and the temperature collection state is normal temperature collection, when the temperature is less than or equal to a first temperature threshold value and after a second time, the charging current is continuously less than the first current threshold value within a first time, and the storage battery is judged to be in a full-charge state;
And after the second time, when the charging current is continuously smaller than the first current threshold value within the first time, judging that the storage battery is in a full charging state.
The first temperature threshold is a preset low-temperature threshold of the storage battery, and when the current temperature of the storage battery is greater than the first temperature threshold, the storage battery is in a normal-temperature working condition; when the current temperature of the storage battery is smaller than or equal to the first temperature threshold value, the storage battery is in a low-temperature working condition.
It should be noted that, under the condition that the charging current collection state of the storage battery is normal for current collection and the temperature collection state is normal for temperature collection, the judgment method that the storage battery is under different temperature working conditions should be distinguished first:
when the storage battery is in a normal-temperature working condition, judging whether the storage battery is fully charged directly based on the charging current, namely when the charging current of the storage battery is continuously smaller than a first current threshold value within a first time, judging that the storage battery is in a fully charged state, wherein the first time is also the charging time;
when the storage battery is in a low-temperature working condition, whether the storage battery is fully charged is judged directly based on the charging current and the charging time, namely the storage battery firstly ensures that the minimum charging time, namely the second time, is reached, and then after the second time of charging, the charging current of the storage battery is continuously smaller than the first current threshold value in the first time, and the storage battery is judged to be in a fully charged state.
It should be further noted that, under the condition that the charging current collection state of the storage battery is normal current collection and the temperature collection state is abnormal temperature collection, the storage battery may be in a low-temperature working condition due to the fact that the temperature of the storage battery cannot be detected, so that the storage battery is fully charged at the moment, which is consistent with the above determination method for the low-temperature working condition, that is, the storage battery firstly needs to ensure that the minimum charging time, here, the second time, is reached, and then after the second time of charging, when the charging current of the storage battery is continuously smaller than the first current threshold value in the first time, the storage battery is determined to be in a fully charged state, so that full charge is ensured to the maximum extent, and power shortage is avoided.
Further, under the condition that the charging current collection state is abnormal, whether the storage battery is in a full charge state or not is judged according to the residual capacity and the charging time, and the method comprises the following steps:
and when the residual electric quantity is kept unchanged in the third time, judging that the storage battery is in a fully charged state.
It should be noted that, when the charging current of the storage battery is acquired as abnormal current acquisition, the charging current provided by the storage battery is invalid, and whether the storage battery is fully charged is determined based on the remaining power, and when the remaining power remains unchanged for the third time, it is determined that the storage battery is fully charged, and the remaining power at this time is the remaining power after the storage battery is fully charged.
Here, the battery full duration, i.e., the third time, is calculated based on the battery capacity and the battery full current threshold, and the calculation formula is as follows:
optionally, the method further comprises:
when the vehicle is in an awakening state, acquiring the residual electric quantity;
and when the residual electric quantity is less than the charge starting threshold value, guiding the vehicle to be electrified at high voltage, and controlling the storage battery to enter a charge state.
When the vehicle is in a dormant state, the IBS monitors the storage battery in real time, calculates the current residual capacity and the battery health state of the storage battery, wakes up the vehicle when the residual capacity is smaller than a low wake-up threshold of the storage battery, the vehicle is in a wake-up state, the IBS sends the residual capacity to the BCM through the LIN line, and the BCM sends the residual capacity to the VCU through the CAN line; after the vehicle enters the awakening state, the VCU acquires the residual electric quantity, when the residual electric quantity is smaller than a charging starting threshold value, the VCU guides the vehicle to be powered on at high voltage, the DCDC is controlled to charge the storage battery, and the storage battery enters the charging state.
Specifically, when the remaining capacity is less than the charge start threshold, the method for guiding the vehicle to be powered on at high voltage and controlling the storage battery to enter a charge state includes:
when the residual electric quantity is smaller than a charging starting threshold value, detecting the door lock state of the vehicle body and the state of the power battery;
According to the state of a vehicle body door lock and the state of a power battery, the vehicle is guided to be electrified at high voltage, and the storage battery is controlled to enter a charging state through the direct current conversion unit.
It should be noted that the BMS detects a state of the power battery and sends state information of the power battery to the VCU through the CAN line, the VCU detects a state of a door lock of the vehicle body and performs judgment according to the state information of the power battery, and when it is judged that a vehicle high-voltage power-on condition is satisfied, the intelligent charging enable flag bit is output, so that the vehicle high-voltage power-on is guided, and the DCDC is controlled to work to charge the storage battery.
Optionally, the method further comprises:
and when the storage battery is in a fully charged state, controlling the storage battery to exit the charged state, and guiding the vehicle to discharge under high voltage.
It should be noted that, after the storage battery is judged to be fully charged, the storage battery is controlled to exit from the charging state in time, so that extra energy consumption is avoided, the power consumption of the vehicle is reduced, the service life of the storage battery is effectively prolonged, and the user experience is improved.
As shown in fig. 3, the steps of the method for controlling the charge of the storage battery according to the embodiment of the present invention are described as follows:
step 301: the vehicle is in a high-voltage power-on state, and the storage battery enters a charging state at the moment;
Step 302: judging whether the charging current collection state of the storage battery is normal current collection;
step 303: when the judgment result in the step 302 is yes, judging whether the temperature acquisition state of the storage battery is normal temperature acquisition;
step 304: if the judgment result in the step 302 is negative, judging whether the residual electric quantity of the storage battery is kept unchanged in the third time;
step 305: if the judgment result in the step 303 is yes, judging whether the temperature of the storage battery is greater than a first temperature threshold value;
step 306: if yes, determining whether the charging current of the storage battery is continuously smaller than a first current threshold value within a first time;
step 307: if the judgment result in step 303 or step 305 is negative, judging whether the charging current is continuously smaller than the first current threshold value within the first time after the storage battery is charged for the second time;
step 308: when the following items are met, judging that the storage battery is fully charged;
the judgment result of the step 304 is yes;
the judgment result of the step 306 is yes;
the judgment result of step 307 is yes;
step 309: when the following items are met, judging that the storage battery is not fully charged;
the judgment result of the step 304 is negative;
the judgment result of the step 306 is no;
The result of the determination in step 307 is no.
An embodiment of the present invention further provides a storage battery charging control apparatus, including:
and the judging module is used for judging whether the storage battery is in a full charge state or not according to at least one of the current charging current acquisition state, the temperature acquisition state, the charging current, the residual electric quantity, the temperature and the charging time of the storage battery under the condition that the storage battery enters the charging state.
According to the embodiment of the invention, under the condition that the storage battery enters the charging state, whether the storage battery is in the full charging state or not is judged according to at least one of the current charging current acquisition state, the temperature acquisition state, the charging current, the residual electric quantity, the temperature and the charging time of the storage battery, so that the storage battery can be fully charged to the greatest extent, the power shortage risk is avoided, the service life of the storage battery is effectively prolonged, and the user experience is improved.
Optionally, the determining module includes:
the first judgment unit is used for judging whether the storage battery is in a full charge state or not according to the temperature acquisition state, the charging current and the charging time under the condition that the charging current acquisition state is normal;
and the second judgment unit is used for judging whether the storage battery is in a full charge state or not according to the residual electric quantity and the charging time under the condition that the charging current acquisition state is abnormal.
Optionally, the first determining unit is specifically configured to:
under the conditions that the charging current collection state is normal current collection and the temperature collection state is normal temperature collection, when the temperature is greater than a first temperature threshold and the charging current is continuously less than the first current threshold within a first time, the storage battery is judged to be in a full charging state;
under the condition that the charging current collection state is normal current collection and the temperature collection state is normal temperature collection, when the temperature is less than or equal to a first temperature threshold value and after a second time, the charging current is continuously less than the first current threshold value within a first time, and the storage battery is judged to be in a full-charge state;
and after the second time, when the charging current is continuously smaller than a first current threshold value in the first time, judging that the storage battery is in a full charging state.
Optionally, the second determining unit is specifically configured to:
and when the residual electric quantity is kept unchanged in the third time, judging that the storage battery is in a fully charged state.
Optionally, the apparatus further comprises:
the acquisition module is used for acquiring the residual electric quantity when the vehicle is in the awakening state;
And the first control module is used for guiding the vehicle to be electrified at high voltage and controlling the storage battery to enter a charging state when the residual electric quantity is smaller than the charging starting threshold value.
Optionally, the first control module is specifically configured to:
when the residual electric quantity is smaller than a charging starting threshold value, detecting the door lock state of the vehicle body and the power battery state;
and guiding the vehicle to be electrified at high voltage according to the door lock state of the vehicle body and the state of the power battery, and controlling the storage battery to enter a charging state through the direct current conversion unit.
Optionally, the apparatus further comprises:
and the second control module is used for controlling the storage battery to exit from a charging state and guiding the vehicle to conduct high-voltage low-voltage electricity when the storage battery is in a fully charged state.
It should be noted that the battery charge control apparatus according to the embodiments of the present invention is an apparatus capable of executing the above-mentioned battery charge control method, and all the embodiments of the above-mentioned battery charge control method are applicable to the apparatus and can achieve the same or similar technical effects.
The embodiment of the invention also provides an electric automobile which comprises the storage battery charging control device.
It should be noted that the electric vehicle provided in the embodiment of the present invention includes the above-mentioned battery charging control device, and has the same technical effects, and details are not described herein again.
An embodiment of the present invention further provides a readable storage medium, where a program is stored, and when the program is executed by a processor, the method for controlling charging of a storage battery as described above is implemented.
The processor is the processor in the electric vehicle in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A battery charge control method applied to a vehicle control unit, characterized by comprising:
and under the condition that the storage battery enters a charging state, judging whether the storage battery is in a full charging state or not according to at least one of the current charging current acquisition state, the temperature acquisition state, the charging current, the residual electric quantity, the temperature and the charging time of the storage battery.
2. The storage battery charging control method according to claim 1, wherein determining whether the storage battery is in a fully charged state according to at least one of a current charging current collection state, a temperature collection state, a charging current, a remaining capacity, a temperature, and a charging time of the storage battery comprises:
under the condition that the charging current collection state is normal current collection, judging whether the storage battery is in a full charge state or not according to the temperature collection state, the charging current and the charging time;
and under the condition that the charging current acquisition state is abnormal, judging whether the storage battery is in a full charge state or not according to the residual electric quantity and the charging time.
3. The storage battery charging control method according to claim 2, wherein, when the charging current collection state is a normal current collection state, determining whether the storage battery is in a fully charged state according to the temperature collection state, the charging current, and the charging time includes:
under the condition that the charging current collection state is normal current collection and the temperature collection state is normal temperature collection, when the temperature is greater than a first temperature threshold value and the charging current is continuously smaller than the first current threshold value within a first time, judging that the storage battery is in a fully charged state;
Under the condition that the charging current collection state is normal current collection and the temperature collection state is normal temperature collection, when the temperature is less than or equal to the first temperature threshold and the charging current is continuously less than the first current threshold within the first time after the second time, judging that the storage battery is in a fully charged state;
and after the second time, when the charging current is continuously smaller than the first current threshold value in the first time, judging that the storage battery is in a fully charged state.
4. The storage battery charge control method according to claim 2, wherein, when the charge current collection state is a current collection abnormality, determining whether the storage battery is in a fully charged state based on the remaining capacity and the charge time includes:
and when the residual electric quantity is kept unchanged in the third time, judging that the storage battery is in a fully charged state.
5. The battery charge control method according to claim 1, characterized by further comprising:
When the vehicle is in an awakening state, acquiring the residual electric quantity;
and when the residual electric quantity is smaller than the charge starting threshold value, guiding the vehicle to be electrified at high voltage, and controlling the storage battery to enter a charge state.
6. The battery charge control method according to claim 5, wherein, when the remaining capacity is less than a charge start threshold, directing vehicle high-voltage power-up and controlling the battery to enter a state of charge, comprises:
when the residual electric quantity is smaller than a charging starting threshold value, detecting the door lock state of the vehicle body and the state of the power battery;
and guiding the vehicle to be electrified at high voltage according to the door lock state of the vehicle body and the state of the power battery, and controlling the storage battery to enter a charging state through a direct current conversion unit.
7. The battery charge control method according to claim 1, characterized by further comprising:
and when the storage battery is in a fully charged state, controlling the storage battery to exit the charged state and guiding the vehicle to discharge under high voltage.
8. A battery charge control device, comprising:
and the judging module is used for judging whether the storage battery is in a full charge state or not according to at least one of the current charging current acquisition state, the temperature acquisition state, the charging current, the residual electric quantity, the temperature and the charging time of the storage battery under the condition that the storage battery enters the charging state.
9. An electric vehicle characterized by comprising the battery charge control apparatus according to claim 8.
10. A readable storage medium, characterized in that the readable storage medium has stored thereon a program which, when executed by a processor, realizes the storage battery charge control method according to any one of claims 1 to 7.
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| CN115208032A (en) * | 2022-09-13 | 2022-10-18 | 深圳市今朝时代股份有限公司 | Charging safety detection method for super capacitor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115208032A (en) * | 2022-09-13 | 2022-10-18 | 深圳市今朝时代股份有限公司 | Charging safety detection method for super capacitor |
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