CN113665509B - Method and device for controlling electric quantity of vehicle storage battery and readable storage medium - Google Patents
Method and device for controlling electric quantity of vehicle storage battery and readable storage medium Download PDFInfo
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- CN113665509B CN113665509B CN202010413583.6A CN202010413583A CN113665509B CN 113665509 B CN113665509 B CN 113665509B CN 202010413583 A CN202010413583 A CN 202010413583A CN 113665509 B CN113665509 B CN 113665509B
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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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- 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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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application discloses an electric quantity control method and device of a vehicle storage battery and a computer readable storage medium, which are used for solving the problem that the probability of feeding risk of a vehicle is high. The method comprises the following steps: when the vehicle is in an initial state, judging whether the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value in real time, and judging whether the vehicle is in a power-on state; if the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value and the vehicle is not in a power-on state, judging whether the vehicle is in a fortification state or not; and if the vehicle is in the fortification state, entering an energy-saving state to disconnect the power supply loop of the vehicle storage battery and the vehicle load.
Description
Technical Field
The present application relates to a vehicle battery management technology, and in particular, to a method, an apparatus, and a computer-readable storage medium for controlling the electric quantity of a vehicle battery.
Background
With the continuous application of new technologies such as intelligent networking and automatic driving, the number of controllers on the whole vehicle is increased, and the static electricity consumption problem is also highlighted. In order to ensure that a user can start normally when using the vehicle, the electric quantity of the vehicle storage battery needs to be monitored and managed. The existing monitoring management technology is mainly two, one is to remotely charge the vehicle storage battery when the vehicle storage battery is fed, the electric vehicle can charge the vehicle storage battery by remotely controlling high-voltage electricity to time, and the fuel vehicle can charge the storage battery by remotely starting the engine. And secondly, when the feeding risk of the electric quantity of the vehicle storage battery is detected, the storage battery power supply loop is disconnected, and the high-voltage battery and the DC-DC converter are utilized to directly supply power to the load.
Therefore, in the current scheme, the mode of directly supplying power to the load by utilizing the high-voltage battery and the DC-DC converter is limited to the electric vehicle, the application scene is too limited and the power supply problem can be caused to occur to the high-voltage battery, the vehicle storage battery is charged in a remote power supply mode, the problems of untimely power supply and the like exist, the power supply problem can still be caused, and the probability of the power supply risk of the vehicle storage battery is higher.
Disclosure of Invention
The application provides a method and a device for controlling electric quantity of a vehicle storage battery and a computer readable storage medium, which are used for solving the problem that the probability of feeding risk of a vehicle is high.
In a first aspect, there is provided a power control method of a vehicle battery, the method including:
when the vehicle is in an initial state, judging whether the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value in real time, and judging whether the vehicle is in a power-on state;
if the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value and the vehicle is not in a power-on state, judging whether the vehicle is in a fortification state or not;
and if the vehicle is in the fortification state, entering an energy-saving state to disconnect the power supply loop of the vehicle storage battery and the vehicle load.
Further, the method further comprises:
if the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value and the vehicle is in an ON gear state, judging whether an engine is in a starting state or not;
if the engine is in a starting state, determining whether the vehicle storage battery is in a charging state currently according to the charging and discharging state information of the vehicle storage battery;
and if the current vehicle storage battery is not in a charging state, entering an alarm prompting state to generate an alarm signal with low electric quantity.
Further, after the determining whether the engine is in the start state, the method further includes:
and if the engine is not in a starting state, entering the alarm prompting state to generate an alarm signal with low electric quantity.
Further, the vehicle includes a DC-DC converter for charging the vehicle battery, the method further comprising:
if the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value and the vehicle is in an ON gear state, judging whether the DC-DC converter is in a starting state or not;
if the DC-DC converter is in a starting state, determining whether the vehicle storage battery is in a charging state currently according to charge-discharge state information of the vehicle storage battery;
and if the current vehicle storage battery is not in a charging state, entering an alarm prompting state to generate an alarm signal with low electric quantity.
Further, the method further comprises:
and if the DC-DC converter is not in the starting state, entering the alarm prompting state to generate an alarm signal with low electric quantity.
Further, after the determining whether the vehicle is in the arming state, the method further includes:
if the vehicle is not in the fortification state, entering an alarm prompt state to generate an alarm signal with low electric quantity.
Further, after the alarm prompting state is entered to generate the alarm signal with low electric quantity, the method further comprises:
judging whether the residual electric quantity of the vehicle storage battery is lower than a second preset electric quantity threshold value or not, wherein the second preset electric quantity threshold value is smaller than the first preset electric quantity threshold value;
and if the residual electric quantity of the vehicle storage battery is lower than the second preset electric quantity threshold value, entering the energy-saving state to disconnect the power supply loop of the vehicle storage battery and the vehicle load.
In a second aspect, there is provided an electric quantity control device of a vehicle storage battery, the electric quantity control device including:
the detection module is used for judging whether the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value in real time when the electric quantity control device is in an initial state, and judging whether the vehicle is in a power-on state;
the detection module is further used for: if the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value and the vehicle is not in a power-on state, judging whether the vehicle is in a fortification state or not;
and the control module is used for entering an energy-saving state to disconnect the power supply loop of the vehicle storage battery and the vehicle load if the vehicle is in the fortification state.
In a third aspect, there is provided a charge control device for a vehicle battery, the charge control device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the charge control method for a vehicle battery according to any one of the first aspects when the computer program is executed.
In a fourth aspect, there is provided a vehicle including the charge control device of the vehicle battery mentioned in the foregoing third aspect.
In a fifth aspect, there is provided a computer-readable storage medium storing a computer program which, when executed by a processor, implements the steps of the method for controlling the charge of a vehicle battery according to any one of the first aspects
In one of the schemes provided above, different states are set for the electric quantity control of the vehicle storage battery, and when the electric quantity control is set in an initial state, the residual electric quantity of the vehicle storage battery is detected in real time, and whether the vehicle is in a power-on state or not is detected; if the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value and the vehicle is not in a power-on state, judging whether the vehicle is in a fortification state or not; and if the vehicle is in the fortification state, entering an energy-saving state from the initial state to disconnect the power supply loop of the vehicle storage battery and the vehicle load. That is, the high-voltage battery and the DC-DC converter are not needed to participate, and the method is applicable to electric or fuel vehicles and has higher applicability. When the vehicle is not in a power-on state and a fortification state, the vehicle has no control requirement, and can enter an energy-saving state to disconnect a power supply loop of the vehicle storage battery and a vehicle load, the power cut-off function is directly performed on the storage battery in the early stage of power feeding, the purpose of power saving is fundamentally achieved, and the probability of the power feeding risk of the vehicle storage battery is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments of the present application will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a system architecture of a power control system according to an embodiment of the present application;
FIG. 2 is a flow chart of a method for controlling the charge of a vehicle battery according to an embodiment of the present application;
FIG. 3 is a schematic flow chart of another method for controlling the charge of a vehicle battery according to an embodiment of the present application;
FIG. 4 is a schematic flow chart of another method for controlling the charge of a vehicle battery according to an embodiment of the present application;
FIG. 5 is a schematic flow chart of another method for controlling the charge of a vehicle battery according to an embodiment of the present application;
FIG. 6 is a schematic view showing a structure of a power control device for a vehicle battery according to an embodiment of the present application;
fig. 7 is another structural diagram of a power control device for a vehicle battery in an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
As shown in fig. 1, the present application provides an electric power control system including a vehicle battery, an electric power control device, a vehicle load, battery sensors (electronic battery sensor, EBS), a vehicle body control module (body control module, BCM), and an engine management system (engine management system, EMS)/DC-DC converter, wherein the vehicle load and the vehicle battery are connected through a power supply circuit, the vehicle battery is used for supplying power to the vehicle load, a battery sensor EBS is connected with the vehicle battery and the electric power control device, respectively, the battery sensor EBS is used for detecting a state of the vehicle battery to detect the state of the vehicle battery, and the electric power control device is used for acquiring relevant state information of the vehicle battery from the battery sensor EBS; the vehicle body control module BCM is a control module for managing related controllers of the vehicle, for example, the electric quantity control device can acquire a power gear signal of the vehicle from the vehicle body control module BCM so as to determine whether the vehicle is in a power-on state according to the power gear signal; the power control device is also connected with the engine management system EMS/DC-DC converter, so that the state of the engine/DC-DC converter can be obtained. It is understood that vehicles exist both in fuel vehicles and in electric vehicles, on which a DC-DC converter is typically arranged for converting high voltage power on the electric vehicle to low voltage for use by certain low voltage demand vehicle loads or for charging the vehicle battery when the vehicle battery of the electric vehicle is at risk for feeding. The electric quantity control device, the battery sensor EBS, the body control module BCM and the engine management system/DC-DC converter may be connected through a vehicle bus, such as a CAN bus, and the present application is not limited thereto.
In addition, the vehicle load and the vehicle storage battery can be connected through the relay to form a power supply loop, the on-off of the power supply loop between the vehicle load and the vehicle storage battery can be controlled through controlling the on-off of the relay, and of course, other devices can be used for controlling the on-off of the power supply loop between the vehicle load and the vehicle storage battery.
Based on the electric quantity control system, an electric quantity control method of a vehicle storage battery is provided, and when an electric quantity control device is in an initial state, the electric quantity control device detects the residual electric quantity of the vehicle storage battery in real time and detects whether the vehicle is in a power-on state or not; if the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value and the vehicle is not in a power-on state, further judging whether the vehicle is in a fortification state or not; and if the vehicle is in the fortification state, entering an energy-saving state from the initial state to disconnect the power supply loop of the vehicle storage battery and the vehicle load. The following detailed description is made:
as shown in fig. 2, a method for controlling the electric quantity of a vehicle battery is provided, which is applied to the above electric quantity control device, and when the electric quantity control device is in an initial state, the method includes the following steps:
s10: and judging whether the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value in real time, and executing step S20 if the residual electric quantity of the vehicle storage battery is lower than the first preset electric quantity threshold value.
In the embodiment of the application, different working states are preset for the electric quantity control device, wherein the working states comprise an initial state and an energy-saving state, in an application scene, a driver can set the working state of the electric quantity control device through a central control screen and other setting modes, the electric quantity control device detects the state of the electric quantity control device in real time, when the electric quantity control device is in the initial state, the electric quantity of a vehicle is correspondingly managed, specifically, when the electric quantity control device is in the initial state, the residual electric quantity of a vehicle storage battery is detected in real time, and the state of charge (SOC) of the vehicle storage battery can be obtained through a battery sensor EBS, so that the residual electric quantity of the vehicle storage battery is obtained. It is understood that the SOC of the vehicle battery is a signal reflecting the remaining power of the vehicle battery, and therefore, the SOC of the vehicle battery may be detected in real time by the battery sensor EBS, and the power control device may acquire an ebs_soc signal reflecting the SCO of the vehicle battery from the battery sensor EBS, so that the power control device may determine the remaining power of the vehicle battery from the ebs_soc signal and determine whether the remaining power of the vehicle battery is lower than the first preset power threshold.
When the vehicle storage battery is in the initial state, if the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value, executing a step S20; and if the residual electric quantity of the vehicle storage battery is higher than the first preset electric quantity threshold value, returning to the initial state, namely continuously detecting the residual electric quantity of the vehicle storage battery. The first preset power threshold is a preset value, for example, the first preset power threshold may be 50% of the total power of the vehicle battery, that is, if the remaining power of the vehicle battery is greater than 50% of the total power of the vehicle battery in the initial state, step S20 is continuously performed. It should be noted that, the first preset electric quantity threshold is only exemplary, and the first preset electric quantity threshold may be configured according to practical application conditions, for example, may be 50% ± 2% of the total electric quantity of the vehicle battery, and the application is not limited.
S20: and detecting whether the vehicle is in a power-on state in real time, and if the vehicle is not in the power-on state, executing step S30.
And when the vehicle is in the initial state, if the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value, detecting whether the vehicle is in a power-on state or not in real time, and if the vehicle is not in the power-on state, executing step S30.
The power-ON state of the vehicle is a state reflecting the power-ON condition of the vehicle, and it is to be noted that the vehicle generally includes a plurality of gear positions, such as an ON gear position, an ACC gear position, an OFF gear position, and a START gear position, and the different gear positions reflect the power-ON condition of the vehicle, for example, when the power-ON gear position is located, all components of the vehicle including an engine management system are also powered ON, when the power-ON gear position is located, some components of the vehicle such as a radio, a sound, and the like are powered ON, and when the power-OFF gear position is located, the vehicle is in a flameout state, that is, the whole vehicle is in a power-OFF state. Therefore, whether the vehicle is in the power-on state or not can be determined according to the gear signal, and specifically, whether the vehicle is in the power-on state or not can be determined by the power gear signal bcm_key detected by the vehicle body control module BCM. For example, if the vehicle is judged to be in the ON range by the bcm_key signal, it can be determined that the vehicle is in the power-ON state, and if the vehicle is judged to be in the OFF range by the bcm_key signal, it is indicated that the vehicle is not in the power-ON state.
S30: and judging whether the vehicle is in a fortification state, and if the vehicle is in the fortification state, executing step S40. The arming state refers to the vehicle being in an anti-theft state.
S40: and entering an energy-saving state to disconnect the power supply loop of the vehicle storage battery and the vehicle load.
If the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value and the vehicle is not in a power-on state, further judging whether the vehicle is in a fortification state, and if the vehicle is in the fortification state, entering an energy-saving state to disconnect a power supply loop of the vehicle storage battery and a vehicle load. The BCM_Armed signal can be obtained through detection of the vehicle body control module BCM, so that whether the vehicle is in a fortification state or not is determined according to the BCM_Armed signal, if the vehicle is in the fortification state, the electric quantity control device enters an energy-saving state, and when the electric quantity control device enters the energy-saving state, a power supply loop of the vehicle storage battery and a vehicle load can be disconnected.
It can be seen that, in the embodiment of the present application, different states are set for controlling the electric quantity of the vehicle storage battery, and when the electric quantity control setting is in an initial state, the remaining electric quantity of the vehicle storage battery is detected in real time, and whether the vehicle is in a power-on state is detected; if the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value and the vehicle is not in a power-on state, judging whether the vehicle is in a fortification state or not; and if the vehicle is in the fortification state, entering an energy-saving state from the initial state to disconnect the power supply loop of the vehicle storage battery and the vehicle load. That is, the high-voltage battery and the DC-DC converter are not needed to participate, and the method is applicable to electric or fuel vehicles and has higher applicability. When the vehicle is not in a power-on state and a fortification state, the vehicle has no control requirement, and can enter an energy-saving state to disconnect a power supply loop of the vehicle storage battery and a vehicle load, the power cut-off function is directly performed on the storage battery in the early stage of power feeding, the purpose of power saving is fundamentally achieved, and the probability of the power feeding risk of the vehicle storage battery is reduced.
In an embodiment, as shown in fig. 2, after step S30, that is, after the determining whether the vehicle is in the armed state, if the vehicle is not in the armed state, the method further includes:
s50: and entering an alarm prompt state to generate an alarm signal with low electric quantity.
In this embodiment, the electric quantity control device further includes an alarm prompting state for issuing a warning signal to prompt that the electric quantity of the current vehicle storage battery is low. Judging whether the vehicle is in a fortification state or not when the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value and the vehicle is not in a power-on state; at this time, if the vehicle is in the fortification state, the energy-saving state is entered to disconnect the power supply loop of the vehicle storage battery and the vehicle load, and if the vehicle is not in the fortification state, the driver may need to use the vehicle at this time, so that the energy-saving state is not entered at this time, but the alarm prompt state is entered to generate an alarm signal with low electric quantity. Specifically, in practical application, the electric quantity control device may transmit the alarm signal through a vehicle bus to perform alarm prompt through a central control screen or sound of a vehicle, and is not limited in particular.
It can be seen that in this embodiment, a new way of warning and prompting the electric quantity of the vehicle battery is provided to inform the driver that the vehicle battery will have a feeding risk if not charged, so that the user charges the battery, and the probability of feeding problems of the subsequent vehicle battery is reduced.
In one embodiment, after step S50, that is, after the step of entering the alarm prompting state from the initial state to generate the low-power alarm signal, the method further includes:
s60: and judging whether the residual electric quantity of the vehicle storage battery is lower than a second preset electric quantity threshold value, and if the residual electric quantity of the vehicle storage battery is lower than the second preset electric quantity threshold value, executing step S40.
The second preset electric quantity threshold is another preset electric quantity threshold, the second preset electric quantity threshold is smaller than the first preset electric quantity threshold, as in the previous example, the first preset electric quantity threshold can be configured to be 50% of the total electric quantity of the vehicle storage battery, the second preset electric quantity threshold can be configured to be 30% of the total electric quantity of the vehicle storage battery, that is, after the alarm prompt state is entered to generate an alarm signal with low electric quantity, if the residual electric quantity of the vehicle storage battery is continuously reduced, when the residual electric quantity is lower than the second preset electric quantity threshold, the energy-saving state is entered to disconnect a power supply loop of the vehicle storage battery and a vehicle load. Therefore, in the embodiment, the probability of the feeding risk of the vehicle storage battery is further reduced, the feasibility of the scheme is improved, and the normal operation of the vehicle is effectively ensured.
It is understood that vehicles exist both in fuel vehicles and in electric vehicles, and that electric vehicles are typically provided with a DC-DC converter for converting high voltage on the electric vehicle to low voltage for use by certain low voltage demand vehicle loads or for charging the vehicle battery when the vehicle battery of the electric vehicle is at risk for feeding. For the fuel vehicle, the vehicle storage battery is charged through the engine, wherein the application detects the residual electric quantity of the vehicle storage battery in real time according to whether the DC-DC converter is included, and after judging the power-ON state of the vehicle, the application has different control logics when the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value and the vehicle is in an ON gear state, which are respectively described below.
Referring to fig. 4 in conjunction with fig. 3, in an embodiment, the vehicle does not include a DC-DC converter, and in this case, in step S20, that is, after detecting whether the vehicle is in a power-ON state in real time, if the vehicle is in an ON state, the method further includes:
S70A: whether the engine is in a starting state is judged, and if the engine is in the starting state, step S80A is executed.
S80A: determining whether the current vehicle storage battery is in a charging state according to the charging and discharging state information of the vehicle storage battery, and executing step S50 if the current vehicle storage battery is not in the charging state; and if the vehicle storage battery is in a charging state currently, returning to an initial state.
It can be seen that, in this embodiment, after determining the power-up state of the vehicle, if the vehicle is in the power-up state and in the ON state, whether the engine is in the start state is continuously determined, specifically, the vehicle gateway may detect the state of the engine and transmit the state signal of the engine to the vehicle bus, and the electric quantity control device indicates that the engine is in the start state at this time when obtaining the ems=run signal from the vehicle bus. It can be understood that when the engine is in a starting state, the vehicle storage battery can be charged, that is, the engine is likely to charge the vehicle storage battery, in this embodiment, whether the vehicle storage battery is currently in a charging state is determined according to charging and discharging state information of the vehicle storage battery, and if the vehicle storage battery is not currently in the charging state, an alarm prompt state is entered to generate an alarm signal with low electric quantity, so that a user is prompted to charge, and the situation that the vehicle storage battery is fed is avoided; and if the vehicle storage battery is in a charging state, returning to an initial state, and continuously executing the control logic in the application.
Referring to fig. 5 in conjunction with fig. 3, in an embodiment, the vehicle includes a DC-DC converter, and in this case, in step S20, that is, after detecting whether the vehicle is in a power-ON state in real time, if the vehicle is in an ON state, the method further includes:
S70B: judging whether the DC-DC converter is in a starting state, and if the DC-DC converter is in the starting state, executing step S80B.
S80B: determining whether the vehicle storage battery is in a charging state currently according to the charging and discharging state information of the vehicle storage battery, and executing step S50 if the vehicle storage battery is not in the charging state currently; and if the vehicle storage battery is in a charging state currently, returning to an initial state.
It can be seen that, in this embodiment, after determining whether the vehicle is in the power-ON state, if the vehicle is in the power-ON state and is in the ON state, it is continuously determined whether the DC-DC converter is in the start state, specifically, the vehicle gateway may detect the state signal of the DC-DC converter and transmit the state signal of the DC-DC converter to the vehicle bus, and when the electric quantity control device acquires the dcdc=on signal from the vehicle bus, it indicates that the DC-DC converter is in the start state at this time. It can be understood that when the DC-DC converter is in a start state, the vehicle battery may be charged, that is, the DC-DC converter may also be used to charge the vehicle battery, in this embodiment, whether the vehicle battery is currently in a charging state is further determined according to charging and discharging state information of the vehicle battery, and the vehicle battery is not currently in a charging state, and enters an alarm prompt state to generate an alarm signal with low electric quantity, so as to prompt a user to charge, thereby avoiding a situation that the vehicle battery is fed. If the vehicle battery is in a charged state, the vehicle battery returns to an initial state, and the control logic in the application is continuously executed.
It should be noted that, in some application scenarios, it is possible that the engine and the DC-DC converter charge the vehicle battery, so in an embodiment, in step S20, that is, after detecting whether the vehicle is in the power-ON state in real time, if the vehicle is in the ON state, the method further includes: judging whether an engine and a DC-DC converter are in a starting state or not, if the engine and the DC-DC converter are in the starting state, determining whether the current vehicle storage battery is in a charging state according to charge-discharge state information of the vehicle storage battery, and if the current vehicle storage battery is not in the charging state, entering an alarm prompt state to generate an alarm signal with low electric quantity; and if the vehicle storage battery is in a charging state currently, returning to an initial state. The details may correspond to those described with reference to the previous embodiments, and the description is not repeated here.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present application.
In an embodiment, a power control device for a vehicle battery is provided, where each module in the power control device for a vehicle battery may be implemented in whole or in part by software, hardware, and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, there is provided a power control device 10 of a vehicle battery, the power control device 10 including a detection module 101 and a control module 102, the functions of each module being as follows:
a detection module 101, configured to determine, in real time, whether a remaining power of the vehicle battery is lower than a first preset power threshold when the power control device 10 is in an initial state, and determine whether the vehicle is in a power-on state;
the detection module 101 is further configured to: if the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value and the vehicle is not in a power-on state, judging whether the vehicle is in a fortification state or not;
and the control module 102 is used for entering an energy-saving state to disconnect the power supply loop of the vehicle storage battery and the vehicle load if the vehicle is in the fortification state.
In an embodiment, the detection module is further configured to: if the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value and the vehicle is in an ON gear state, judging whether an engine is in a starting state or not; if the engine is in a starting state, determining whether the vehicle storage battery is in a charging state currently according to the charging and discharging state information of the vehicle storage battery;
the control module 102 is configured to control the electric quantity control device 10 to enter an alarm prompting state to generate an alarm signal with low electric quantity if the vehicle storage battery is not in a charging state currently.
In one embodiment, after determining whether the engine is in a start state, the control module 102 is further configured to: if the engine is not in a starting state, the electric quantity control device 10 is controlled to enter the alarm prompting state to generate an alarm signal with low electric quantity.
In an embodiment, the vehicle comprises a DC-DC converter for charging the vehicle battery, the detection module 101 further being adapted to: if the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value and the vehicle is in an ON gear state, judging whether the DC-DC converter is in a starting state or not; if the DC-DC converter is in a starting state, determining whether the vehicle storage battery is in a charging state currently according to charge-discharge state information of the vehicle storage battery;
the control module 102 is further configured to: and if the current vehicle storage battery is not in a charging state, entering an alarm prompting state to generate an alarm signal with low electric quantity.
In an embodiment, the control module 102 is further configured to: and if the DC-DC converter is not in the starting state, controlling the electric quantity control device 10 to enter the alarm prompting state so as to generate an alarm signal with low electric quantity.
In one embodiment, after the determining whether the vehicle is in the armed state, the control module 102 is further configured to: if the vehicle is not in the arming state, the electric quantity control device 10 is controlled to enter an alarm prompt state to generate an alarm signal with low electric quantity.
In an embodiment, after the alarm prompting state is entered to generate the low-power alarm signal, the detection module 101 is further configured to: judging whether the residual electric quantity of the vehicle storage battery is lower than a second preset electric quantity threshold value or not, wherein the second preset electric quantity threshold value is smaller than the first preset electric quantity threshold value;
the control module 102 is further configured to: if the remaining power of the vehicle battery is lower than the second preset power threshold, the power control device 10 enters the energy saving state to disconnect the power supply loop of the vehicle battery and the vehicle load.
Therefore, the electric quantity control device of the vehicle storage battery provided by the embodiment of the application does not need a high-voltage battery and a DC-DC converter to participate in feeding treatment, can be suitable for electric or fuel vehicles, and has higher applicability. After the vehicle is not controlled and the vehicle is in use, the vehicle enters an energy-saving state to disconnect the power supply loop of the vehicle storage battery and the vehicle load, and the power cut-off function is realized on the storage battery, so that the purpose of saving electricity is fundamentally achieved, and the probability of the power supply risk of the vehicle storage battery is reduced.
In one embodiment, a power control device for a vehicle battery is provided and includes a transceiver and a processor memory connected by a system bus. Wherein the transceiver of the charge control device of the vehicle battery is used for receiving/transmitting information/signaling, such as for receiving the ebs_soc signal, and the processor of the charge control device of the vehicle battery is used for providing computing and control capabilities. The memory of the charge control device of the vehicle storage battery comprises a nonvolatile storage medium and an internal memory. The nonvolatile storage medium stores configuration information. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The electric quantity control device for the vehicle storage battery can be connected and communicated with components such as the vehicle storage battery of the vehicle through a vehicle bus. The computer program, when executed by a processor, implements a method for controlling the charge of a vehicle battery.
In one embodiment, there is provided a power control device for a vehicle battery, comprising a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
when the vehicle is in an initial state, judging whether the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value in real time, and judging whether the vehicle is in a power-on state;
if the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value and the vehicle is not in a power-on state, judging whether the vehicle is in a fortification state or not;
and if the vehicle is in the fortification state, entering an energy-saving state to disconnect the power supply loop of the vehicle storage battery and the vehicle load.
It should be noted that, the functions implemented when the processor executes the computer program may correspond to the descriptions of the foregoing method embodiments, and the descriptions are not repeated here.
In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of:
when the vehicle is in an initial state, judging whether the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value in real time, and judging whether the vehicle is in a power-on state;
if the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value and the vehicle is not in a power-on state, judging whether the vehicle is in a fortification state or not;
and if the vehicle is in the fortification state, entering an energy-saving state to disconnect the power supply loop of the vehicle storage battery and the vehicle load.
It should be noted that, the functions implemented when the computer program is executed by the processor may correspond to the descriptions of the foregoing method embodiments, and the descriptions are not repeated here.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
It will be clearly understood by those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of each functional unit and module is illustrated, and in practical application, the above-mentioned functional allocation may be performed by different functional units and modules, that is, the internal structure of the controller is divided into different functional units or modules, so as to perform all or part of the above-mentioned functions.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (9)
1. A method of controlling the charge of a vehicle battery, the method comprising:
when the vehicle is in an initial state, judging whether the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value in real time, and judging whether the vehicle is in a power-on state;
if the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value and the vehicle is not in a power-on state, judging whether the vehicle is in a fortification state or not;
if the vehicle is in the fortification state, entering an energy-saving state to disconnect a power supply loop of the vehicle storage battery and the vehicle load;
wherein the vehicle comprises a DC-DC converter for charging the vehicle battery, the method further comprising:
if the residual electric quantity of the vehicle storage battery is lower than the first preset electric quantity threshold value and the vehicle is in an ON gear state, judging whether the DC-DC converter is in a starting state or not;
if the DC-DC converter is in a starting state, determining whether the vehicle storage battery is in a charging state currently according to charge-discharge state information of the vehicle storage battery;
and if the current vehicle storage battery is not in a charging state, entering an alarm prompting state to generate an alarm signal with low electric quantity.
2. The method of controlling the amount of electricity of a vehicle storage battery according to claim 1, characterized in that the method further comprises:
if the residual electric quantity of the vehicle storage battery is lower than the first preset electric quantity threshold value and the vehicle is in an ON gear state, judging whether an engine is in a starting state or not;
if the engine is in a starting state, determining whether the vehicle storage battery is in a charging state currently according to the charging and discharging state information of the vehicle storage battery;
and if the current vehicle storage battery is not in a charging state, entering an alarm prompting state to generate an alarm signal with low electric quantity.
3. The method for controlling the charge of a vehicle battery according to claim 2, wherein after said determining whether the engine is in a started state, the method further comprises:
if the engine is not in a starting state, an alarm prompt state is entered to generate an alarm signal with low electric quantity.
4. The method for controlling the amount of power of a vehicle battery according to claim 1, wherein after said determining whether said DC-DC converter is in a start-up state, said method further comprises:
and if the DC-DC converter is not in the starting state, entering an alarm prompting state to generate an alarm signal with low electric quantity.
5. The method for controlling the amount of electricity of a vehicle storage battery according to any one of claims 1 to 4, wherein after the determination as to whether the vehicle is in a armed state, the method further comprises:
if the vehicle is not in the fortification state, entering an alarm prompt state to generate an alarm signal with low electric quantity.
6. The method for controlling the charge of a vehicle battery according to claim 5, wherein after said entering an alarm alert state to emit an alarm signal of low charge, said method further comprises:
judging whether the residual electric quantity of the vehicle storage battery is lower than a second preset electric quantity threshold value or not, wherein the second preset electric quantity threshold value is smaller than the first preset electric quantity threshold value;
and if the residual electric quantity of the vehicle storage battery is lower than the second preset electric quantity threshold value, entering an energy-saving state to disconnect the power supply loop of the vehicle storage battery and the vehicle load.
7. An electric quantity control device of a vehicle storage battery, characterized by comprising:
the detection module is used for judging whether the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value in real time when the electric quantity control device is in an initial state, and judging whether the vehicle is in a power-on state;
the detection module is further used for: if the residual electric quantity of the vehicle storage battery is lower than a first preset electric quantity threshold value and the vehicle is not in a power-on state, judging whether the vehicle is in a fortification state or not;
the control module is used for entering an energy-saving state to disconnect the power supply loop of the vehicle storage battery and the vehicle load if the vehicle is in a fortification state;
wherein the vehicle comprises a DC-DC converter for charging the vehicle battery, the apparatus being further for:
if the residual electric quantity of the vehicle storage battery is lower than the first preset electric quantity threshold value and the vehicle is in an ON gear state, judging whether the DC-DC converter is in a starting state or not;
if the DC-DC converter is in a starting state, determining whether the vehicle storage battery is in a charging state currently according to charge-discharge state information of the vehicle storage battery;
and if the current vehicle storage battery is not in a charging state, entering an alarm prompting state to generate an alarm signal with low electric quantity.
8. A charge control device for a vehicle battery, characterized in that the charge control device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor, when executing the computer program, realizes the steps of the charge control method for a vehicle battery according to any one of claims 1 to 6.
9. A computer-readable storage medium, characterized in that the readable storage medium stores a computer program which, when executed by a processor, implements the steps of the electric quantity control method of the vehicle storage battery according to any one of claims 1 to 6.
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