CN112109592A - Control method of vehicle-mounted battery, vehicle and readable storage medium - Google Patents

Abstract

The invention discloses a control method of a vehicle-mounted battery, a vehicle and a readable storage medium, wherein the control method of the vehicle-mounted battery comprises the following steps: receiving a user operation instruction, and detecting whether an external power supply is accessed; if the external power supply is connected, acquiring preset vehicle using time and detecting a first temperature of a battery, and charging the battery and controlling a heating assembly to heat the battery according to a charging and heating mode corresponding to the user operation instruction, the preset vehicle using time and the first temperature; if the external power supply is not accessed, acquiring preset vehicle using time, detecting a second temperature of the battery, and controlling the heating assembly to heat the battery according to the preset vehicle using time and the second temperature. The control method of the vehicle-mounted battery provided by the invention can meet the travel requirement of a user when an external power supply is available, and can heat the battery when the external power supply is unavailable.

Description

Control method of vehicle battery, vehicle and readable storage medium

technical field

The invention relates to the field of electric vehicles, in particular to a control method of a vehicle battery, a vehicle and a readable storage medium.

Background technique

At present, the suitable working temperature of electric vehicles is 20 to 40 degrees Celsius. In the case of low temperature in winter, the temperature of the battery of the electric vehicle is often lower than the suitable working temperature range, which will shorten the mileage of the electric vehicle and weaken the power, thus affecting the user experience. The existing technical solution is usually to heat and keep the battery after the battery is charged by an external power supply, so as to ensure that the battery is in a suitable working temperature range. Working under suitable working temperature will affect the battery performance.

Therefore, it is necessary to provide a control method for a vehicle-mounted battery to solve the above-mentioned technical problems.

The above content is only used to assist the understanding of the technical solutions of the present invention, and does not mean that the above content is the prior art.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide a vehicle battery control method, a vehicle and a readable storage medium, aiming at solving the technical problem that the battery cannot be heated without an external power supply, which affects the performance of the battery.

In order to achieve the above purpose, the control method of the vehicle battery proposed by the present invention includes the following steps:

Receive user operation instructions and detect whether an external power supply is connected;

If the external power supply is connected, the preset vehicle usage time is acquired and the first temperature of the battery is detected, and the charging and heating method corresponding to the user operation instruction, the preset vehicle usage time and the first temperature are determined for all vehicle usage. charging the battery and controlling the heating assembly to heat the battery;

If the external power supply is not connected, the preset vehicle usage time is acquired and the second temperature of the battery is detected, and the heating component is controlled to heat the battery according to the preset vehicle usage time and the second temperature.

Preferably, if an external power source is connected, the preset vehicle use time is obtained and the first temperature of the battery is detected, and the charging and heating method corresponding to the user operation instruction, the preset vehicle use time and the first temperature are obtained. a temperature, the steps of charging the battery and controlling the heating assembly to heat the battery include:

If an external power source is connected, determine whether to charge the battery preferentially according to the charging and heating mode corresponding to the user operation instruction;

If the battery is preferentially charged, the battery is charged through the external power supply, and the power of the battery is detected in real time to determine whether the power is equal to a preset power threshold;

If the electric power is equal to the preset electric power threshold, obtain the preset vehicle use time, detect the first temperature of the battery, and control the heating assembly according to the preset vehicle use time and the first battery temperature Heat the battery.

Preferably, if the electric power is equal to the preset electric power threshold, the preset vehicle use time is acquired, and the first temperature of the battery is detected, according to the preset vehicle use time and the first The step of heating the battery by the battery temperature control heating assembly includes:

If the electric power is equal to the preset electric power threshold, obtain the preset vehicle use time, and detect the first temperature of the battery;

determining whether the first temperature is less than a preset temperature;

If the first temperature is less than the preset temperature, turn on the heating component, and calculate and obtain a first temperature difference value according to the first temperature and the preset temperature;

Obtaining the current time, and calculating the first time difference between the current time and the preset vehicle use time;

The first heating power is obtained according to the first temperature difference and the first time difference, and the heating assembly is controlled to heat the battery with the first heating power.

Preferably, after the step of calculating the first heating power according to the first temperature difference and the first time difference, and controlling the heating component to heat the battery with the first heating power, the method includes:

Detecting the current temperature of the battery in real time, calculating a second temperature difference between the current temperature and the preset temperature, and calculating a second time difference between the detection time corresponding to the current temperature and the preset vehicle use time ;

The heating power of the heating assembly is adjusted in real time according to the second temperature difference and the second time difference.

Preferably, after the step of judging whether to give priority to charging the battery according to the user operation instruction, the method includes:

If the battery is preferentially heated, execute: the step of acquiring the preset vehicle use time and detecting the first temperature of the battery;

After the step of adjusting the battery heating power of the heating component in real time according to the second temperature difference and the second time difference, the step includes:

Detecting the current temperature of the battery in real time, and judging whether the current temperature is greater than or equal to the preset temperature;

If the current temperature is greater than or equal to the preset temperature, the battery is charged through the external power supply.

Preferably, if the external power supply is not connected, the preset vehicle use time is obtained and the second temperature of the battery is detected, and the heating component is controlled according to the preset vehicle use time and the second temperature. The steps of heating the battery include:

If the external power supply is not connected, obtain the preset vehicle use time and detect the second temperature of the battery;

determining whether the second temperature is less than a preset temperature;

If the second temperature is less than the preset temperature, calculating a third temperature difference according to the second temperature and the preset temperature;

Obtaining the current time, and calculating a third time difference between the current time and the preset vehicle use time;

Obtain battery heating time and second heating power according to the third temperature difference and the third time difference;

When the battery heating time is reached, the battery is controlled to supply power to the heating assembly, so that the heating assembly heats the battery with a second heating power.

Preferably, after the step of controlling the battery to supply power to the heating component when the battery heating time is reached, so that the heating component heats the battery with the second heating power, the method includes:

Detecting the current temperature of the battery in real time, calculating a fourth temperature difference between the current temperature and the preset temperature, and calculating a fourth time difference between the detection time corresponding to the current temperature and the preset vehicle use time ;

The heating power of the heating assembly is adjusted in real time according to the fourth temperature difference and the fourth time difference.

Preferably, the step of adjusting the heating power of the heating component in real time according to the fourth temperature difference and the fourth time difference includes:

According to the fourth temperature difference value and the fourth time difference value, the power supply voltage of the battery to the heating assembly is adjusted in real time, so as to adjust the heating power of the heating assembly.

The present invention also provides a vehicle, comprising a heating assembly, a memory, a processor, and a computer program stored on the memory and executable on the processor, when the processor executes the computer program to achieve the above-mentioned The steps of the control method of the vehicle battery.

The present invention also provides a readable storage medium on which a control program is stored, and when the control program is executed by a processor, the steps of the above-mentioned control method for a vehicle-mounted battery are implemented.

In the technical solution of the present invention, by receiving a user operation instruction, and detecting whether to connect to an external power supply; if the external power supply is connected, the preset vehicle use time is obtained and the first temperature of the battery is detected, and the charging corresponding to the user operation instruction is performed. and the heating mode, the preset vehicle use time and the first temperature, charge the battery and control the heating component to heat the battery; if the external power supply is not connected, obtain the preset vehicle use time and detect all The second temperature of the battery is controlled, and the heating component is controlled to heat the battery according to the preset vehicle use time and the second temperature. When there is an external power supply, the user's needs are met, and when there is no external power supply, the heating of the battery is realized.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained according to the structures shown in these drawings without creative efforts.

1 is a schematic diagram of a vehicle structure of a hardware operating environment involved in an embodiment of the present invention;

2 is a schematic flowchart of a first embodiment of a method for controlling a vehicle-mounted battery of the present invention;

FIG. 3 is a schematic flow chart of the refinement of step S110 in the second embodiment of the method for controlling a vehicle-mounted battery of the present invention;

FIG. 4 is a schematic flow chart of the refinement of step S220 in the third embodiment of the method for controlling the vehicle-mounted battery of the present invention;

FIG. 5 is a schematic flowchart of a fourth embodiment of a method for controlling a vehicle-mounted battery according to the present invention.

The realization, functional characteristics and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between various components under a certain posture (as shown in the accompanying drawings). The relative positional relationship, the movement situation, etc., if the specific posture changes, the directional indication also changes accordingly.

In addition, descriptions such as "first", "second", etc. in the present invention are only for descriptive purposes, and should not be construed as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, the terms "connected", "fixed" and the like should be understood in a broad sense, for example, "fixed" may be a fixed connection, a detachable connection, or an integrated; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal communication between two elements or an interaction relationship between the two elements, unless otherwise explicitly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention. It should be noted that the strong-current hooks and the weak-current hooks mentioned in the following embodiments are not settings for the types of wires that can be installed on the hooks, but are only for convenience of description.

Embodiments of the present invention provide a vehicle battery control method, a vehicle, and a readable storage medium.

As shown in FIG. 1 , the method of the present invention is applicable to a vehicle, and the vehicle includes a battery control system, a heating assembly, and a transformer device, wherein the battery control system is used to control the charging and heating of the battery, and the heating assembly uses For heating the battery of the vehicle, the transformer device is used to adjust the power supply voltage of the heating assembly, so as to adjust the heating power of the battery of the heating assembly. The vehicle may also include: a processor 1001 , eg, a CPU, a communication bus 1002 , a user interface 1003 , a network interface 1004 , and a memory 1005 . Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a touch panel, a touch screen, and a keyboard, and the optional user interface 1003 may also include a standard wired interface and a wireless interface. Optionally, the network interface 1004 may include a standard wired interface and a wireless interface (eg, a WI-FI interface). The memory 1005 can be a high-speed RAM memory, or a stable memory (non-volatitle memory), such as a disk memory. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001 .

Those skilled in the art can understand that the vehicle structure shown in FIG. 1 does not constitute a limitation to the vehicle, and may include more or less components than those shown, or combine some components, or arrange different components.

As shown in FIG. 1 , the memory 1005 as a readable storage medium may include an operating system, a network communication module, a user interface module and a vehicle battery control program.

The processor 1001 can be used to call the on-board battery control program stored in the memory 1005, and perform the following operations:

Receive user operation instructions and detect whether an external power supply is connected;

If the external power supply is connected, the preset vehicle usage time is acquired and the first temperature of the battery is detected, and the charging and heating method corresponding to the user operation instruction, the preset vehicle usage time and the first temperature are determined for all vehicle usage. charging the battery and controlling the heating assembly to heat the battery;

If the external power supply is not connected, the preset vehicle usage time is acquired and the second temperature of the battery is detected, and the heating component is controlled to heat the battery according to the preset vehicle usage time and the second temperature.

Further, the processor 1001 can be used to call the on-board battery control program stored in the memory 1005, and also perform the following operations:

If an external power source is connected, determine whether to charge the battery preferentially according to the charging and heating mode corresponding to the user operation instruction;

If the battery is preferentially charged, the battery is charged through the external power supply, and the power of the battery is detected in real time to determine whether the power is equal to a preset power threshold;

If the electric power is equal to the preset electric power threshold, obtain the preset vehicle use time, detect the first temperature of the battery, and control the heating assembly according to the preset vehicle use time and the first battery temperature Heat the battery.

Further, the processor 1001 can be used to call the on-board battery control program stored in the memory 1005, and also perform the following operations:

If the electric power is equal to the preset electric power threshold, obtain the preset vehicle use time, and detect the first temperature of the battery;

determining whether the first temperature is less than a preset temperature;

If the first temperature is less than the preset temperature, turn on the heating component, and calculate and obtain a first temperature difference value according to the first temperature and the preset temperature;

Obtaining the current time, and calculating the first time difference between the current time and the preset vehicle use time;

The first heating power is obtained according to the first temperature difference and the first time difference, and the heating assembly is controlled to heat the battery with the first heating power.

Further, the processor 1001 can be used to call the on-board battery control program stored in the memory 1005, and also perform the following operations:

Detecting the current temperature of the battery in real time, calculating a second temperature difference between the current temperature and the preset temperature, and calculating a second time difference between the detection time corresponding to the current temperature and the preset vehicle use time ;

The heating power of the heating assembly is adjusted in real time according to the second temperature difference and the second time difference.

Further, the processor 1001 can be used to call the on-board battery control program stored in the memory 1005, and also perform the following operations:

If the battery is preferentially heated, execute: the step of acquiring the preset vehicle use time and detecting the first temperature of the battery;

After the step of adjusting the battery heating power of the heating component in real time according to the second temperature difference and the second time difference, the step includes:

Detecting the current temperature of the battery in real time, and judging whether the current temperature is greater than or equal to the preset temperature;

If the current temperature is greater than or equal to the preset temperature, the battery is charged through the external power supply.

Further, the processor 1001 can be used to call the on-board battery control program stored in the memory 1005, and also perform the following operations:

If the external power supply is not connected, obtain the preset vehicle use time and detect the second temperature of the battery;

determining whether the second temperature is less than a preset temperature;

If the second temperature is less than the preset temperature, calculating a third temperature difference according to the second temperature and the preset temperature;

Obtaining the current time, and calculating a third time difference between the current time and the preset vehicle use time;

Obtain battery heating time and second heating power according to the third temperature difference and the third time difference;

When the battery heating time is reached, the battery is controlled to supply power to the heating assembly, so that the heating assembly heats the battery with a second heating power.

Further, the processor 1001 can be used to call the on-board battery control program stored in the memory 1005, and also perform the following operations:

Detecting the current temperature of the battery in real time, calculating a fourth temperature difference between the current temperature and the preset temperature, and calculating a fourth time difference between the detection time corresponding to the current temperature and the preset vehicle use time ;

The heating power of the heating assembly is adjusted in real time according to the fourth temperature difference and the fourth time difference.

Further, the processor 1001 can be used to call the on-board battery control program stored in the memory 1005, and also perform the following operations:

According to the fourth temperature difference value and the fourth time difference value, the power supply voltage of the battery to the heating assembly is adjusted in real time, so as to adjust the heating power of the heating assembly.

Based on the above hardware structure, various embodiments of the vehicle battery control method of the present invention are proposed.

Please refer to FIG. 2 , which is a schematic flowchart of a first embodiment of a method for controlling a vehicle-mounted battery in the present invention. The control method of the vehicle battery includes the following steps:

Step S100, receiving a user operation instruction, and detecting whether an external power supply is connected;

Specifically, the user operation instruction may be issued by the user through an APP of the mobile terminal, and the vehicle may receive the user operation instruction through a communication module. The vehicle can detect whether an external power supply is connected through the battery control system.

Step S110, if an external power source is connected, obtain the preset vehicle use time and detect the first temperature of the battery, according to the charging and heating mode corresponding to the user operation instruction, the preset vehicle use time and the first temperature , charging the battery and controlling the heating assembly to heat the battery;

Specifically, the user can connect the external power supply to the vehicle, and then send a user operation instruction to the vehicle through the APP of the mobile terminal. When the vehicle detects that the external power supply is connected, the preset vehicle usage time is obtained. and detects the first temperature of the battery, the preset car use time may be set by the user through the APP of the mobile terminal and sent to the vehicle, and the battery control system of the vehicle can obtain the preset car use time, The first temperature of the battery can be obtained by detecting the temperature of the battery, and whether the battery is in a low temperature condition can be determined according to the first temperature. The charging and heating methods corresponding to the user operation instructions include: charging the battery first, then heating the battery, or heating the battery first, and then charging the battery, and the battery control system can charge and heat the battery according to the user operation instructions. mode, the preset driving time and the first temperature, the battery is charged first, and then the heating component is controlled to heat the battery, or the heating component is controlled to heat the battery first, and then the battery is charged, This enables the vehicle to be fully charged before the preset vehicle use time, and the battery temperature can reach a suitable temperature range. In the present invention, the first temperature, the second temperature, etc. of the battery can be detected by a temperature sensor provided in the vehicle.

Step S120, if the external power supply is not connected, obtain the preset vehicle use time and detect the second temperature of the battery, and control the heating component to the battery according to the preset vehicle use time and the second temperature. heating.

Specifically, when the external power supply is not connected, the battery cannot be heated by the external power supply. At this time, the preset vehicle use time is obtained and the second temperature of the battery is detected, and whether the battery is in a low temperature condition is determined according to the second temperature, When the battery is in a low temperature condition, the heating assembly is controlled to heat the battery according to the preset vehicle use time and the second temperature, and the heating assembly can be powered by the battery, so that the vehicle is in a preset operating time. Before the car time, the battery temperature can reach the appropriate temperature range.

In this embodiment, under low temperature conditions, when the vehicle is connected to an external power supply, the user can flexibly select the sequence of battery charging and heating to meet the needs of the user in different travel scenarios; when the vehicle is not connected to an external power supply, the user can also The battery is heated to ensure the power of the battery.

Further, a second embodiment is proposed based on the first embodiment. Referring to FIG. 3 , in this embodiment, the step S110 includes:

Step S200, if an external power source is connected, determine whether to charge the battery preferentially according to the charging and heating mode corresponding to the user operation instruction;

Specifically, the charging and heating methods corresponding to the user operation instruction include: firstly charging the battery and then heating the battery, or first heating the battery and then charging the battery. When the user chooses to charge first through the APP, it means that the user wants to ensure that the battery power is sufficient during the preset time of car use.

Step S210, if the battery is preferentially charged, the battery is charged by the external power supply, and the power of the battery is detected in real time to determine whether the power is equal to a preset power threshold;

Specifically, when the power level is equal to the preset power level threshold, it means that the battery is fully charged at this time.

Step S220, if the electric power is equal to the preset electric power threshold, obtain the preset vehicle use time, and detect the first temperature of the battery, according to the preset vehicle use time and the first battery temperature controlling the heating assembly to heat the battery;

If the power level is less than the preset power level threshold, the steps of: detecting the power level of the battery in real time and judging whether the power level is equal to the preset power level threshold value are performed.

Specifically, when the electric power is equal to the preset electric power threshold, the battery is fully charged, and at this time, the preset vehicle use time is obtained, and the first temperature of the battery is detected, and according to the preset vehicle use time and The first temperature controls the heating assembly to heat the battery, wherein the heating assembly is powered by the external power source.

In this embodiment, when the vehicle is connected to an external power source, the user can charge the battery first and then heat the battery as required, and can automatically switch to heat the battery when the battery is fully charged.

Further, a third embodiment is proposed based on the second embodiment. Referring to FIG. 4 , in this embodiment, the step S220 includes:

Step S300, if the electric power is equal to the preset electric power threshold, obtain the preset vehicle use time, and detect the first temperature of the battery;

Step S310, judging whether the first temperature is less than a preset temperature;

Step S320, if the first temperature is lower than the preset temperature, turn on the heating component, and calculate and obtain a first temperature difference value according to the first temperature and the preset temperature;

If the first temperature is greater than or equal to the preset temperature, no processing is performed;

Step S330, obtaining the current time, and calculating the first time difference between the current time and the preset vehicle use time;

Step S340, obtaining a first heating power according to the first temperature difference and the first time difference, and controlling the heating component to heat the battery with the first heating power.

Specifically, when the first temperature is less than a preset temperature, the battery control system may turn on the heating component, calculate the first temperature difference between the first temperature and the preset temperature, and obtain the current time, Calculate the first time difference between the preset vehicle use time and the current time, obtain the first heating power according to the first temperature difference and the first time difference, and control the heating assembly to use the first temperature difference. A heating power heats the battery, and the first heating power can be adjusted by the transformer device, and the transformer device can adjust the heating power of the battery by adjusting the power supply voltage of the heating assembly. For example: when the first temperature difference is large and the first time difference is small, in order to make the battery temperature rise to the preset temperature when the preset vehicle use time is reached, the first heating power should be larger, the battery heats up quickly.

Preferably, a corresponding relationship table of temperature difference, time difference and heating power can be preset in the battery control system, and the corresponding relationship table can be obtained from the first temperature difference and the first time difference according to the first temperature difference and the first time difference. to obtain the corresponding first heating power.

In this embodiment, after the battery is fully charged first, when the battery is in a low temperature condition, the battery is heated by turning on the heating assembly, and the first temperature difference value and the first time difference value can be used to heat the battery. The corresponding first heating power is obtained to ensure that the battery can be heated to the preset temperature when the preset vehicle use time is reached.

Further, a fourth embodiment is proposed based on the third embodiment. Referring to FIG. 5 , in this embodiment, after step S340, the steps include:

Step S400: Detect the current temperature of the battery in real time, calculate a second temperature difference between the current temperature and the preset temperature, and calculate the second difference between the detection time corresponding to the current temperature and the preset vehicle use time. time difference;

Step S410, adjusting the heating power of the heating component in real time according to the second temperature difference and the second time difference.

Specifically, in the process of heating the battery by the heating component, the battery control system can detect the current temperature of the battery in real time, then calculate the second temperature difference between the current temperature and the preset temperature, and calculate the current time The second time difference with the preset vehicle use time, the battery control system may obtain the second temperature difference and the The heating power corresponding to the second time difference can be adjusted in real time through the transformer device.

In this embodiment, during the heating process of the battery, by adjusting the heating power of the heating component in real time, the heating energy consumption can be reduced while ensuring the heating efficiency.

Further, a fifth embodiment is proposed based on the fourth embodiment. In this embodiment, after the step S220, it includes:

If the battery is preferentially heated, step S300 is performed;

After the step S420, it includes:

Detecting the current temperature of the battery in real time, and judging whether the current temperature is greater than or equal to the preset temperature;

If the current temperature is greater than or equal to the preset temperature, charging the battery through the external power supply;

If the current temperature is lower than the preset temperature, no processing is performed.

Specifically, when the user chooses to heat first through the APP, it means that the user wants to ensure that the battery reaches the preset temperature during the preset driving time to ensure the power of the battery, and the battery power may be relatively sufficient at this time. At this time, the battery is heated first, and when the current temperature is greater than or equal to the preset temperature, the battery is charged through the external power supply.

In this embodiment, the user's requirement for heating the battery first is met, so as to ensure the power of the battery.

Further, a sixth embodiment is proposed based on the first embodiment. In this embodiment, the step S120 includes:

If the external power supply is not connected, obtain the preset vehicle use time and detect the second temperature of the battery;

determining whether the second temperature is less than a preset temperature;

If the second temperature is less than the preset temperature, calculating a third temperature difference according to the second temperature and the preset temperature;

If the second temperature is greater than or equal to the preset temperature, no processing is performed;

Obtaining the current time, and calculating a third time difference between the current time and the preset vehicle use time;

Obtain battery heating time and second heating power according to the third temperature difference and the third time difference;

When the battery heating time is reached, the battery is controlled to supply power to the heating assembly, so that the heating assembly heats the battery with a second heating power.

Specifically, when the external power supply is not connected, the battery can only be heated, and the battery cannot be charged. At this time, the preset vehicle use time is acquired and the second temperature of the battery is detected. When the temperature is lower than the preset temperature, the battery control system controls the battery to supply power to the heating component, calculates the third temperature difference between the second temperature and the preset temperature, obtains the current time, and calculates the preset temperature. Set the third time difference between the vehicle time and the current time, obtain the battery heating time and the second heating power according to the third temperature difference and the third time difference, and when the battery heating time is reached, control the The battery supplies power to the heating assembly, so that the heating assembly heats the battery with a second heating power, the battery heating time is the time when the heating assembly is turned on, and the second heating power can be passed through any The transformer is adjusted, and the transformer can adjust the heating power of the battery by adjusting the power supply voltage of the heating assembly. For example: when the third temperature difference is small and the third time difference is large, in order to make the battery temperature rise to the preset temperature when the preset vehicle use time is reached, it is not necessary to perform For heating, first obtain the battery heating time corresponding to the third temperature difference and the third time difference, and when the battery heating time is reached, control the battery to supply power to the heating component, and the second heating power can be Smaller, reduce energy consumption and make the battery heat up slowly.

Preferably, in the battery control system, a table of correspondences between temperature difference, time difference, and battery heating time and heating power can be preset, and the third temperature difference and the third time difference can Obtain the corresponding battery heating time and second heating power from the corresponding relationship table.

In this embodiment, when the external power supply is not connected, the battery can be controlled to supply power to the heating component to achieve battery heating, so as to ensure that the battery can be heated to the preset temperature even when the external power supply is not connected, ensuring that the battery dynamism.

Further, a seventh embodiment is proposed based on the sixth embodiment. In this embodiment, when the battery heating time is reached, the second temperature difference value and the third time difference value are used to obtain the second heating power, and after the step of controlling the heating component to heat the battery with the second heating power, including:

Detecting the current temperature of the battery in real time, calculating a fourth temperature difference between the current temperature and the preset temperature, and calculating a fourth time difference between the detection time corresponding to the current temperature and the preset vehicle use time ;

The heating power of the heating assembly is adjusted in real time according to the fourth temperature difference and the fourth time difference.

Specifically, in the process of heating the battery by the heating component without connecting to the external power supply, the battery control system can detect the current temperature of the battery in real time, obtain the current time in real time, and then calculate the difference between the current temperature and the preset temperature. Set the fourth temperature difference value of the temperature, and calculate the fourth time difference value between the current time and the preset vehicle use time, and the battery control system can be based on the preset temperature difference value, time difference value and the corresponding heating power The heating power corresponding to the fourth temperature difference value and the fourth time difference value is obtained from the relationship table, and the heating power is adjusted in real time through the transformer device.

In this embodiment, when the external power supply is not connected, the heating power of the heating component can also be adjusted in real time during the heating process of the battery, which can reduce heating energy consumption while ensuring heating efficiency.

Further, an eighth embodiment is proposed based on the seventh embodiment. In this embodiment, the step of adjusting the heating power of the heating component in real time according to the fourth temperature difference and the fourth time difference includes the following steps: :

According to the fourth temperature difference value and the fourth time difference value, the power supply voltage of the battery to the heating assembly is adjusted in real time, so as to adjust the heating power of the heating assembly.

In this embodiment, the transformer device may adjust the power supply voltage of the battery to the heating assembly in real time according to the fourth temperature difference and the fourth time difference, so as to adjust the heating of the heating assembly power. Of course, multiple parallel heating components can also be set, and different numbers of heating components can be controlled to be powered on to obtain different heating powers.

The present invention also provides a readable storage medium, where a computer program is stored on the readable storage medium, and when the computer program is executed by the processing unit, the steps of the aforementioned method for controlling an on-board battery are implemented or when the computer program is executed by the processing unit Implement the steps of the control method for the vehicle battery as described above.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each process and/or block in the flowchart illustrations and/or block diagrams, and combinations of processes and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions The apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

These computer program instructions can also be loaded on a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process such that The instructions provide steps for implementing the functions specified in the flow or blocks of the flowcharts and/or the block or blocks of the block diagrams.

It should be noted that, in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not preclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. do not denote any order. These words can be interpreted as names.

Although preferred embodiments of the present invention have been described, additional changes and modifications to these embodiments may occur to those skilled in the art once the basic inventive concepts are known. Therefore, the appended claims are intended to be construed to include the preferred embodiment and all changes and modifications that fall within the scope of the present invention.

The above descriptions are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Under the inventive concept of the present invention, the equivalent structural transformations made by the contents of the description and drawings of the present invention, or the direct/indirect application Other related technical fields are included in the scope of patent protection of the present invention.

Claims (10)

1. A control method of a vehicle-mounted battery, characterized by comprising:

receiving a user operation instruction, and detecting whether an external power supply is accessed;

if the external power supply is connected, acquiring preset vehicle using time and detecting a first temperature of a battery, and charging the battery and controlling a heating assembly to heat the battery according to a charging and heating mode corresponding to the user operation instruction, the preset vehicle using time and the first temperature;

if the external power supply is not accessed, acquiring preset vehicle using time, detecting a second temperature of the battery, and controlling the heating assembly to heat the battery according to the preset vehicle using time and the second temperature.

2. The method for controlling the vehicle-mounted battery according to claim 1, wherein the step of acquiring a preset vehicle-using time and detecting a first temperature of the battery if an external power supply is connected, and the step of charging the battery and controlling the heating assembly to heat the battery according to the charging and heating method corresponding to the user operation command, the preset vehicle-using time and the first temperature comprises the steps of:

if the external power supply is connected, judging whether the battery is charged preferentially according to the charging and heating mode corresponding to the user operation instruction;

if the battery is charged preferentially, the battery is charged through the external power supply, the electric quantity of the battery is detected in real time, and whether the electric quantity is equal to a preset electric quantity threshold value or not is judged;

if the electric quantity is equal to the preset electric quantity threshold value, the preset vehicle using time is obtained, the first temperature of the battery is detected, and the heating assembly is controlled to heat the battery according to the preset vehicle using time and the first battery temperature.

3. The method according to claim 2, wherein if the electric quantity is equal to the preset electric quantity threshold value, the preset vehicle-use time is obtained, the first temperature of the battery is detected, and the step of controlling the heating assembly to heat the battery according to the preset vehicle-use time and the first battery temperature comprises:

if the electric quantity is equal to the preset electric quantity threshold value, acquiring the preset vehicle using time, and detecting a first temperature of the battery;

judging whether the first temperature is lower than a preset temperature or not;

if the first temperature is lower than the preset temperature, the heating assembly is started, and a first temperature difference value is obtained through calculation according to the first temperature and the preset temperature;

acquiring current time, and calculating a first time difference value between the current time and the preset vehicle using time;

and acquiring first heating power according to the first temperature difference and the first time difference, and controlling the heating assembly to heat the battery at the first heating power.

4. The method for controlling the on-vehicle battery according to claim 3, wherein the step of calculating a first heating power based on the first temperature difference value and the first time difference value, and controlling the heating member to heat the battery at the first heating power, is followed by:

detecting the current temperature of the battery in real time, calculating a second temperature difference value between the current temperature and the preset temperature, and calculating and detecting a second time difference value between the detection time corresponding to the current temperature and the preset vehicle using time;

and adjusting the heating power of the heating assembly in real time according to the second temperature difference and the second time difference.

5. The method for controlling the in-vehicle battery according to claim 4, wherein the step of determining whether to prioritize charging of the battery according to the user operation instruction is followed by:

if the battery is preferentially heated, executing the following steps: the step of acquiring the preset vehicle using time and detecting a first temperature of the battery;

after the step of adjusting the battery heating power of the heating assembly in real time according to the second temperature difference and the second time difference, the method includes:

detecting the current temperature of the battery in real time, and judging whether the current temperature is greater than or equal to the preset temperature or not;

and if the current temperature is greater than or equal to the preset temperature, charging the battery through the external power supply.

6. The method for controlling the vehicle-mounted battery according to claim 1, wherein the step of acquiring a preset vehicle-use time and detecting a second temperature of the battery if an external power supply is not accessed, and controlling the heating module to heat the battery according to the preset vehicle-use time and the second temperature comprises:

if the external power supply is not accessed, acquiring preset vehicle using time and detecting a second temperature of the battery;

judging whether the second temperature is lower than a preset temperature or not;

if the second temperature is lower than the preset temperature, calculating to obtain a third temperature difference value according to the second temperature and the preset temperature;

acquiring current time, and calculating a third time difference value between the current time and the preset vehicle using time;

acquiring battery heating time and second heating power according to the third temperature difference and the third time difference;

when the battery heating time is up, the battery is controlled to supply power to the heating assembly, so that the heating assembly heats the battery at a second heating power.

7. The method for controlling the vehicle-mounted battery according to claim 6, wherein the step of controlling the battery to supply power to the heating assembly when the battery heating time is reached so that the heating assembly heats the battery at the second heating power is followed by:

detecting the current temperature of the battery in real time, calculating a fourth temperature difference value between the current temperature and the preset temperature, and calculating and detecting a fourth time difference value between the detection time corresponding to the current temperature and the preset vehicle using time;

and adjusting the heating power of the heating assembly in real time according to the fourth temperature difference and the fourth time difference.

8. The control method of the on-vehicle battery according to claim 7, wherein the step of adjusting the heating power of the heating component in real time according to the fourth temperature difference and the fourth time difference comprises:

and adjusting the power supply voltage of the battery to the heating assembly in real time according to the fourth temperature difference and the fourth time difference so as to adjust the heating power of the heating assembly.

9. A vehicle, characterized by comprising a heating assembly, a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the control method of the on-board battery according to any one of claims 1 to 8 when executing the computer program.

10. A readable storage medium, characterized in that the readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the control method of the in-vehicle battery according to any one of claims 1 to 8.

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