WO2020156076A1

WO2020156076A1 - Parking air conditioner, and early warning method and system for life of vehicle battery

Info

Publication number: WO2020156076A1
Application number: PCT/CN2020/070913
Authority: WO
Inventors: 温晓杰; 国德防; 张飞; 程永甫; 吕静静; 陈建龙; 姚永祥
Original assignee: 青岛海尔空调器有限总公司; 海尔智家股份有限公司
Priority date: 2019-01-30
Filing date: 2020-01-08
Publication date: 2020-08-06
Also published as: KR102287642B1; CN109895717A; KR20200101390A; CN109895717B

Abstract

An early warning method for the life of a vehicle battery, comprising: acquiring a first duration during which the output voltage of a vehicle battery drops from a first voltage value to a second voltage value (S100); comparing the first duration to a reference duration (S200); and selectively issuing an early warning information according to a comparison result (S300). By means of the present method, detection takes a short amount of time and is convenient.

Description

Life warning method and system for parking air conditioner and vehicle battery

Technical field

The present invention relates to the technical field of vehicle batteries, and specifically provides a method and system for pre-warning the service life of parking air conditioners and vehicle batteries.

Background technique

Existing vehicles are equipped with batteries for supplying power to electrical equipment such as ignition devices, lighting devices, and air conditioners. With the daily use of the vehicle, the battery life of the vehicle will continue to shorten. When the service life of the vehicle battery is shortened to a certain extent, the capacity of the vehicle battery is much smaller than the rated capacity, and the power of the fully charged vehicle battery will rapidly decrease during use, which affects the ignition device, lighting device, and air conditioner of the vehicle After the normal operation of the electrical equipment, the user experience is poor.

In view of this, a method for detecting the service life of a vehicle battery has emerged. For example, a patent (CN104833918A) discloses a method for detecting the service life of a power battery for a vehicle, which includes the following steps: obtaining vehicle test data, the vehicle test The data includes the charging/discharging current curve of the power battery within a preset time; the charging/discharging cycle test of the power battery is performed with the charging/discharging current corresponding to the charging/discharging current curve of the power battery. When the number of cycle tests reaches the preset number of cycles, the remaining capacity of the power battery is recorded; the life attenuation rate of the power battery during the charging/discharging process of the preset number of cycles is obtained according to the remaining capacity of the power battery And calculating the remaining use time of the power battery when the degradation degree SOH of the power battery drops to a preset SOH according to the life decay rate. Using this method can accurately detect the battery life. However, in the detection phase, it is necessary to perform most charge/discharge cycle tests on the power battery. The detection time is long, and the detection cannot be performed during the use of the vehicle battery, the detection is inconvenient, and the user experience is poor.

Correspondingly, a new vehicle battery detection method is needed in the art to solve the above problems.

Summary of the invention

In order to solve the above-mentioned problems in the prior art, that is, to solve the problem that the current vehicle battery life detection method takes a long time, the battery life detection cannot be performed during the use of the vehicle battery, and the user experience is poor, on the one hand, the present invention provides A life warning method for a vehicle battery. The life warning method includes the following steps: obtaining a first time period for the output voltage of the vehicle battery to decrease from a first voltage value to a second voltage value; comparing the first time period with The size of the reference duration; the warning information is selectively issued according to the comparison result; wherein the determination process of the reference duration is: in the case that the vehicle battery is in a predetermined state, obtaining the output voltage of the vehicle battery from the first A second time period for a voltage value to drop to the second voltage value; the reference time period is determined according to the second time period.

In the preferred technical solution of the above-mentioned life warning method, the step of "selectively issuing early warning information based on the comparison result" specifically includes: if the first duration is less than the reference duration, sending the early warning information.

In the preferred technical solution of the above-mentioned life warning method, the reference duration includes a first reference duration, the early warning information includes first early warning information, and the first early warning information is information that enables the user to learn and maintain the vehicle battery The step of "if the first time length is less than the reference time length, send the early warning information" specifically includes: if the first time length is less than the first reference time length, send the first early warning information.

In the preferred technical solution of the above-mentioned life warning method, the reference duration includes a second reference duration, the warning information includes second warning information, and the second warning information is information that enables the user to learn and replace the vehicle battery The step of "if the first time length is less than the reference time length, send the early warning information" specifically includes: if the first time length is less than the second reference time length, send the second early warning information.

In the preferred technical solution of the above-mentioned life warning method, the reference duration includes a first reference duration and a second reference duration, the first reference duration is greater than the second reference duration, and the warning information includes first warning information and The second warning information, the first warning information is information that enables the user to learn and maintain the vehicle battery, and the second warning information is the information that enables the user to learn and replace the vehicle battery, "if the first If the first time period is less than the reference time period, the step of issuing the warning information" specifically includes: if the first time period is less than the first reference time period and greater than or equal to the second reference time period, then the first early warning message is issued Information; if the first duration is less than the second reference duration, the second warning message is issued.

In the preferred technical solution of the above-mentioned life warning method, the first voltage value is the voltage of the vehicle battery in a fully charged state; and/or the second voltage value is the ignition protection voltage of the vehicle battery.

In the preferred technical solution of the above-mentioned life warning method, the vehicle is equipped with a parking air conditioner, and the vehicle battery can distribute power to the parking air conditioner, wherein "the output voltage of the vehicle battery is obtained from the first The first time period for the voltage value to drop to the second voltage value" is specifically: during the use of the parking air conditioner, obtaining the output voltage of the vehicle battery from the first voltage value to the second voltage value The first time length used; wherein the process of determining the reference time length is: in the case that the vehicle battery is in a predetermined state and during the use of the parking air conditioner, obtaining the output voltage of the vehicle battery from the first A second time period for a voltage value to drop to the second voltage value; the reference time period is determined according to the second time period.

On the other hand, the present invention also provides a life warning system for a vehicle battery. The life warning system includes: a timing module configured to obtain the reduction of the output voltage of the vehicle battery from a first voltage to a second voltage The first time length used by the value; a comparison module, which is configured to be able to compare the size of the first time length with a reference time length; an early warning module, which is configured to be able to selectively send out warning information according to the comparison result; wherein the reference time length is The determination process is: when the vehicle battery is in a predetermined state, obtain the second time period for the output voltage of the vehicle battery to decrease from the first voltage value to the second voltage value; according to the second The duration determines the reference duration.

In the preferred technical solution of the above-mentioned life early warning system, the early warning module selectively sends out early warning information according to the comparison result in the following manner: if the first duration is less than the reference duration, the early warning information is sent out.

In addition, the present invention also provides a parking air conditioner, the parking air conditioner includes the vehicle battery life warning system of any one of the above technical solutions of the vehicle battery life warning system; or the parking The air conditioner includes a controller for executing the vehicle battery life early warning method according to any one of the technical solutions of the vehicle battery life early warning method.

Those skilled in the art can understand that, in the technical solution of the present invention, the life warning method of the vehicle battery of the present invention is mainly: obtaining the first voltage used for reducing the output voltage of the vehicle battery from the first voltage value to the second voltage value. Duration, compare the size of the first duration and the reference duration, and selectively send out early warning information based on the comparison result. The process of determining the reference duration is: when the vehicle battery is in a predetermined state, the second duration for the output voltage of the vehicle battery to decrease from the first voltage value to the second voltage value is obtained, and the reference duration is determined according to the second duration. Specifically, when the first time length is less than the reference time length, an early warning message is issued to remind the user that the life of the vehicle battery is shortened to a certain extent, so that the user can handle the vehicle battery in time.

Using such a vehicle battery life warning method, the first time period for the vehicle battery to fall from the first voltage value to the second step-down value can be obtained during the normal use of the vehicle battery, and the first time period is compared with the reference time period. Compare the results to determine the status of the vehicle battery's service life and selectively issue warning messages to prevent users from continuing to use the vehicle battery without knowing that the vehicle battery's service life has been shortened to a certain extent. This will increase the aging of the vehicle battery and affect the electrical equipment on the vehicle. Works normally. The vehicle battery life warning method of the present invention can detect and pre-warn the vehicle battery life when the vehicle battery is in use, avoiding the inability of the vehicle battery to be used normally during the vehicle battery life detection process to affect the user's car demand, and The battery life detection of the present invention takes short time, is convenient to detect, and optimizes the user experience.

In the preferred technical solution of the present invention, the reference duration includes a first reference duration and a second reference duration, and the early warning information includes first early warning information and second early warning information, and the first early warning information is information that enables the user to know and maintain the vehicle battery , The second warning information is information that enables the user to learn and replace the vehicle battery. When the first duration is less than the first reference duration and greater than or equal to the second reference duration, a first warning message is issued to remind the user to maintain the vehicle battery in time to extend its service life; when the first duration is less than the second reference duration, The second warning message is issued so that the user can replace the vehicle battery in time.

Description of the drawings

The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of the main steps of the method for pre-warning the life of a vehicle battery of the present invention;

Fig. 2 is a schematic diagram of specific steps of the method for pre-warning the life of a vehicle battery of the present invention.

detailed description

The preferred embodiments of the present invention will be described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention. It should be noted that in the description of the present invention, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

In order to solve the problems that the existing vehicle battery life detection method takes a long time, the battery life detection cannot be performed during the use of the vehicle battery, and the user experience is poor, on the one hand, the present invention provides a vehicle battery life early warning method.

Referring to FIG. 1, FIG. 1 is a schematic diagram of the main steps of the vehicle battery life warning method of the present invention. The warning method of the vehicle battery of the present invention mainly includes the following steps:

S100. Obtain a first time period for the output voltage of the vehicle battery to decrease from the first voltage value to the second voltage value.

S200: Compare the size of the first duration with the reference duration.

S300. Selectively issue an early warning message according to the comparison result.

The process of determining the reference duration is: when the vehicle battery is in a predetermined state, the second duration for the output voltage of the vehicle battery to decrease from the first voltage value to the second voltage value is obtained, and the reference duration is determined according to the second duration.

The vehicle battery life warning method of the present invention can detect the first time period for the output voltage of the vehicle battery to drop from the first voltage value to the second voltage value during the use of the vehicle battery, and compare the first time period with the reference time period Based on the comparison results, it selectively sends out early warning information. The battery life detection and early warning of the vehicle is convenient, does not affect the normal use of the vehicle, and avoids the problem that the traditional battery life detection process and the normal battery use process cannot be carried out at the same time and affect the daily use of the vehicle. Optimize the user experience.

In the existing trucks, the truck is equipped with two air conditioning systems. Among them, one air-conditioning system includes a vehicle-mounted integral air conditioner, which is driven by an engine to adjust the ambient temperature in the cab during driving; the other air-conditioning system includes a parking air conditioner, which is powered by the vehicle battery on the truck , When the truck is in the parking state and the engine is in the idling state or off state, the ambient temperature in the cab is adjusted by the parking air conditioner. In the following, the vehicle battery life warning method of the present invention will be introduced in conjunction with a parking air conditioner.

The vehicle battery on the truck is used to power the parking air conditioner, ignition device, lighting device and other electrical equipment. During the use of the parking air conditioner, the output voltage of the vehicle battery is detected in real time, and the timing starts when the output voltage of the vehicle battery is at the first voltage value. As the vehicle battery continues to supply power, when the output voltage of the vehicle battery drops to the second When the voltage value is reached, the timing ends, and the first time period for the output voltage of the vehicle battery to decrease from the first voltage value to the second voltage value is obtained, and then the first time period is compared with the reference time period. If the first time period is less than the reference time period, an early warning message is issued to remind the user that the life of the vehicle battery is shortened to a certain extent, so that the user can handle the vehicle battery in time. If the first duration is greater than or equal to the reference duration, no warning message is sent or a message that the vehicle battery life is normal is sent.

When the vehicle battery is in a predetermined state, such as during the first use of the parking air conditioner, the output voltage of the vehicle battery is detected in real time, and the timing starts when the output voltage of the vehicle battery is at the first voltage value. Continuous power supply. When the output voltage of the vehicle battery drops to the second voltage value, the timing ends, and the second time period for the output voltage of the vehicle battery to decrease from the first voltage value to the second voltage value is obtained. The second time length is multiplied by the preset value The coefficient gives the base duration. Preferably, during the first n (n=2, 3, 4...) uses of the parking air conditioner, n second durations are obtained, and the average value of the n second durations is calculated and multiplied by a preset coefficient. Baseline duration. Although in the process of obtaining the first duration, the vehicle battery may supply power to other electrical equipment, but the power of the parking air conditioner is relatively large, and the power consumption of other electrical equipment has little effect on the obtained first duration , Can be ignored.

During the first n (n=2, 3, 4...) use of the vehicle battery, obtain n second durations, calculate the average value of n second durations and multiply it by the preset scale factor to obtain the reference duration, The error can be reduced and the accuracy of the reference time can be improved, thereby improving the accuracy of the life warning of the tram.

Those skilled in the art can understand that the situation that the vehicle battery is in a predetermined state is "the process of using the parking air conditioner for the first time" is only an exemplary description, and those skilled in the art can adjust it as needed to adapt to For specific applications, such as during the second use of the parking air conditioner, or during the third use of the parking air conditioner, as long as the service life of the vehicle battery is basically the same as the service life at the factory.

Referring to FIG. 2, FIG. 2 is a schematic diagram of specific steps of the method for pre-warning the life of a vehicle battery of the present invention. Preferably, the reference duration includes a first reference duration, the early warning information includes first early warning information, and the first early warning information is information that enables the user to learn and maintain the vehicle battery. If the first time period is less than the first reference time period, a first warning message is issued to remind the user that the life of the vehicle battery has reached the node that needs maintenance, so that the user can maintain the vehicle battery in time, and avoid the vehicle battery from not being maintained in time and aggravating the vehicle battery The aging of electrical equipment cannot normally meet the power supply requirements of electrical equipment and affect the user experience.

In a possible implementation manner, the reference duration includes the second reference duration, the early warning information includes second early warning information, and the second early warning information is information that enables the user to learn and replace the vehicle battery. If the first time period is less than the second reference time period, a second warning message is issued to remind the user that the life of the vehicle battery has reached the node that needs to be replaced, so that the user can replace the vehicle battery in time to avoid the vehicle battery life being shortened to a certain extent. Failure to replace the vehicle battery in time has caused the user to have a problem that the battery life of the vehicle battery is shortened to a certain extent during the recent use of the vehicle, and the battery power is sharply reduced from normal, causing the vehicle to fail to ignite.

As shown in Figure 2, in a preferred embodiment, the reference duration includes both the first reference duration and the second reference duration, and the early warning information includes both the first early warning information and the second early warning information. The first early warning information is capable of enabling The user learns and maintains information about the vehicle battery, and the second warning information is information that enables the user to learn and replace the vehicle battery. Wherein, the second reference duration is less than the first reference duration. Step S200 specifically includes comparing the first duration with the first reference duration and the second reference duration. Step S300 specifically includes: when the first duration is greater than or equal to the first reference duration, no warning information is issued; when the first duration is less than the first reference duration and greater than or equal to the second reference duration, the first warning information is issued to remind the user of the vehicle battery The life of the vehicle reaches the node that needs to be maintained, so that the user can maintain the vehicle battery in time; when the first time is less than the second reference time, a second warning message is issued to remind the user that the life of the vehicle battery has reached the node that needs to be replaced, So that the user can replace the vehicle battery in time.

Those skilled in the art can understand that the reference duration includes the first reference duration and the second reference duration, and the early warning information includes the first early warning information and the second early warning information. This is only a specific implementation, and those skilled in the art can follow It needs to be adjusted to suit specific applications. For example, the reference duration can include three or more different reference durations, and the early warning information includes a corresponding number of different early warning information. Specifically, if the reference duration includes the reference duration one , Benchmark duration two, benchmark duration three, the warning information includes the first warning information, the second warning information, and the third warning information. The first warning information is the information that enables the user to know and simply maintain the vehicle battery, and the second warning information is the ability The information that enables the user to learn and professionally maintain the vehicle battery, and the third warning information is information that enables the user to learn and replace the vehicle battery. When the first duration is greater than or equal to the reference duration 1, no warning message is issued; when the first duration is less than the reference duration 1 and greater than or equal to the reference duration 2, the first warning message is issued so that the user can perform simple maintenance on the vehicle battery in time, such as cleaning the vehicle Dirt on the battery electrode column, adding distilled water, etc.; when the first time period is less than the reference time period two and greater than or equal to the reference time period three, a second warning message is issued so that the user can send the vehicle battery to a professional maintenance site for professional maintenance in time; When one hour is less than the reference time of three hours, a third warning message is issued so that the user can replace the vehicle battery in time.

Preferably, the first voltage value is the voltage of the vehicle battery in a fully charged state, and the second voltage value is the ignition protection voltage of the vehicle battery. Since the voltage value of the vehicle battery has a small change range during use, through the above setting, the difference between the measured first voltage and the second voltage is relatively large, and the first voltage value and the second voltage can be measured more accurately. Two voltage values, to obtain the first duration closer to the actual value, thereby further improving the accuracy of the life warning.

Those skilled in the art can understand that the above setting is only a preferred embodiment, and those skilled in the art can adjust it as needed to adapt to specific applications. For example, the first voltage value is when the vehicle battery is fully charged. The second voltage value is any voltage between the ignition protection voltage and the voltage in the full state; it can also be any one between the ignition protection voltage and the voltage in the full state The second voltage value is the ignition protection voltage; it may also be two different voltages between the first voltage value and the second voltage value between the ignition protection voltage and the voltage in the fully charged state.

On the other hand, the present invention also provides a vehicle battery life warning system. The life warning system includes: a timing module configured to obtain the first voltage value used by the vehicle battery to decrease the output voltage from the first voltage value to the second voltage value. One time; the comparison module is configured to be able to compare the size of the first time and the reference time; the early warning module is configured to be able to selectively send out early warning information according to the comparison result; wherein the process of determining the reference time is: when the vehicle battery is in In the case of a predetermined state, the second time period for the output voltage of the vehicle battery to decrease from the first voltage value to the second voltage value is obtained, and the reference time period is determined according to the second time period.

Preferably, the early warning module selectively sends out early warning information according to the comparison result in the following manner: if the first duration is less than the reference duration, the early warning information is sent out.

Further preferably, the reference duration includes a first reference duration, the early warning information includes first early warning information, the first early warning information is information that enables the user to know and maintain the vehicle battery, and the comparison module is configured to be able to compare the first duration with the first reference duration the size of. The early warning module selectively sends out early warning information based on the comparison result in the following way: if the first time period is less than the first reference time period, the first early warning message is issued to remind the user that the life of the vehicle battery has reached the node that needs maintenance, so that the user can be timely Carry out maintenance on the vehicle battery to avoid the failure of timely maintenance of the vehicle battery to aggravate the aging of the vehicle battery and the inability to normally meet the power supply requirements of the electrical equipment and affect the user experience.

In a possible implementation manner, the reference duration includes a second reference duration, the early warning information includes second early warning information, the second early warning information is information that enables the user to learn and replace the vehicle battery, and the comparison module is configured to be able to compare the first duration And the size of the second reference duration. The early warning module selectively sends out early warning information based on the comparison result in the following way: if the first time period is less than the second reference time period, a second early warning message is issued to remind the user that the life of the vehicle battery has reached the node that needs to be replaced, so that The user replaces the vehicle battery in time to prevent the vehicle battery life from being shortened to a certain extent and the vehicle battery is not replaced in time, causing the user to change the battery power from normal to a certain extent due to the short life of the vehicle battery during a certain period of vehicle use. Reduce the problem that the vehicle cannot be started.

In another preferred embodiment, the reference duration includes a first reference duration and a second reference duration, the first reference duration is greater than the second reference duration, the early warning information includes the first early warning information and the second early warning information, and the first early warning information In order to enable the user to learn and maintain the information of the vehicle battery, the second warning information is information that enables the user to learn and replace the vehicle battery. The comparison module is configured to be able to compare the size of the first time period with the first reference time period and the second reference time period. The early warning module selectively sends out early warning information according to the comparison result in the following manner: if the first time period is less than the first reference time period and greater than or equal to If the first time period is less than the second reference time period, then the second alarm information will be issued.

Further preferably, the first voltage value is the voltage of the vehicle battery in a fully charged state, and the second voltage value is the ignition protection voltage of the vehicle battery. Through this setting, the difference between the measured first voltage and the second voltage is relatively large, the first voltage value and the second voltage value can be measured more accurately, and the first duration closer to the actual value can be obtained, thereby Further improve the accuracy of life warning.

Preferably, the vehicle is equipped with a parking air conditioner, the vehicle battery can distribute power to the parking air conditioner, and the timing module obtains the first time period for the output voltage of the vehicle battery to decrease from the first voltage value to the second voltage value in the following manner : During the use of the parking air conditioner, the first time it takes to obtain the output voltage of the vehicle battery from the first voltage value to the second voltage value. The process of determining the reference duration is: when the vehicle battery is in a predetermined state and the parking air conditioner is in use, obtaining the second duration for the output voltage of the vehicle battery from the first voltage value to the second voltage value; The duration determines the base duration. Through this setting, during the use of the parking air conditioner, the relevant parameters of the vehicle battery can be conveniently judged according to the relevant parameters of the life state of the vehicle battery, and the warning information can be selectively issued to remind the user to take corresponding treatment.

In addition, the present invention provides a parking air conditioner, which includes the above-mentioned vehicle battery life warning system and is powered by the vehicle battery; or the parking air conditioner includes a controller, and the controller is configured to execute the above Any one of the vehicle battery life early warning methods. During the working process of the parking air conditioner, the relevant parameters in the process of supplying power from the vehicle battery to the parking air conditioner can be detected through the above-mentioned vehicle battery life warning system or the controller according to the above-mentioned vehicle battery life warning method and according to the relevant parameters Selectively send out early warning information so that users can deal with the vehicle battery in time. Those skilled in the art can understand that the parking air conditioner may be a single cooling type parking air conditioner, a heating and cooling type parking air conditioner, or the like.

Those skilled in the art can understand that, in the parking air conditioner including the above-mentioned vehicle battery life warning system, the warning device may be the display screen of the parking air conditioner, and the warning information is displayed on the display screen of the parking air conditioner; The device may also be a voice broadcast device or a buzzer installed on the air conditioner, and an early warning message can be issued through the voice broadcast device or the buzzer.

As can be seen from the above description, in the preferred technical solution of the present invention, the life warning method of the vehicle battery includes: obtaining the first time period when the output voltage of the vehicle battery drops from the voltage value in the fully charged state to the ignition protection voltage, and comparing The size of the one-time duration and the reference duration. When the first duration is less than the reference duration, an early warning message is issued. The process of determining the reference duration is: when the vehicle battery is in a predetermined state, obtain the second duration for the output voltage of the vehicle battery to decrease from the first voltage value to the second voltage value; determine the reference duration according to the second duration.

Using such a vehicle battery life warning method can detect and pre-warn the vehicle battery life when the vehicle battery is in use, avoiding the user from continuing to use the vehicle battery without knowing that the vehicle battery life has been shortened to a certain extent. The worsening degree of aging affects the normal operation of the electrical devices on the vehicle, and at the same time avoids the impact of the vehicle battery's inability to use the vehicle during the vehicle battery life detection process on the user's vehicle demand. In addition, the battery life detection of the present invention takes a short time, is convenient to detect, and optimizes the user experience. The first voltage value is the voltage value of the vehicle battery in a fully charged state, and the second voltage value is the ignition protection voltage of the vehicle battery. The first time period closer to the actual value can be obtained, which improves the accuracy of the life warning.

So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

A life warning method for a vehicle battery, characterized in that the life warning method includes the following steps:

Acquiring the first time period for the output voltage of the vehicle battery to decrease from the first voltage value to the second voltage value;

Comparing the size of the first duration with the reference duration;

Selectively send out warning messages based on the comparison results;

Wherein, the process of determining the reference duration is:

In the case that the vehicle battery is in a predetermined state, acquiring the second time period for the output voltage of the vehicle battery to decrease from the first voltage value to the second voltage value;

The reference duration is determined according to the second duration.
The lifespan early warning method according to claim 1, wherein the step of "selectively issuing early warning information based on the comparison result" specifically includes:

If the first time period is less than the reference time period, the warning message is issued.
The lifespan early warning method according to claim 2, wherein the reference duration includes a first reference duration, the early warning information includes first early warning information, and the first early warning information enables a user to know and maintain the Vehicle battery information,

The step of "if the first time length is less than the reference time length, send the warning message" specifically includes:

If the first duration is less than the first reference duration, the first warning message is issued.
The lifespan early warning method according to claim 2, wherein the reference duration includes a second reference duration, the early warning information includes second early warning information, and the second early warning information is capable of enabling the user to learn and replace the Vehicle battery information,

The step of "if the first time length is less than the reference time length, send the warning message" specifically includes:

If the first time period is less than the second reference time period, the second warning message is issued.
The life warning method according to claim 2, wherein the reference duration includes a first reference duration and a second reference duration, and the first reference duration is greater than the second reference duration,

The warning information includes first warning information and second warning information. The first warning information is information that enables the user to learn and maintain the vehicle battery, and the second warning information is to enable the user to learn and replace the vehicle battery. Vehicle battery information,

The step of "if the first time length is less than the reference time length, send the warning message" specifically includes:

If the first time period is less than the first reference time period and greater than or equal to the second reference time period, the first warning message is issued;

If the first time period is less than the second reference time period, the second warning message is issued.
The life warning method according to any one of claims 1 to 5, wherein the first voltage value is the voltage of the vehicle battery in a fully charged state; and/or the second voltage value is The ignition protection voltage of the vehicle battery.
The life warning method according to any one of claims 1 to 5, wherein the vehicle is equipped with a parking air conditioner, and the vehicle battery can distribute power to the parking air conditioner,

Wherein, "acquiring the first time period for the output voltage of the vehicle battery to decrease from the first voltage value to the second voltage value" is specifically:

During the use of the parking air conditioner, acquiring the first time period for the output voltage of the vehicle battery to decrease from the first voltage value to the second voltage value;

Wherein, the process of determining the reference duration is:

When the vehicle battery is in a predetermined state and the parking air conditioner is in use, acquiring the second time period for the output voltage of the vehicle battery to decrease from the first voltage value to the second voltage value;

The reference duration is determined according to the second duration.
A life warning system for a vehicle battery is characterized in that the life warning system includes:

A timing module, which is configured to be able to obtain the first time period for the output voltage of the vehicle battery to decrease from the first voltage value to the second voltage value;

A comparison module, which is configured to be able to compare the size of the first duration with a reference duration;

Early warning module, which is configured to selectively send out early warning information based on the comparison result;

Wherein, the process of determining the reference duration is:

In the case that the vehicle battery is in a predetermined state, acquiring the second time period for the output voltage of the vehicle battery to decrease from the first voltage value to the second voltage value;

The reference duration is determined according to the second duration.
The life early warning system of claim 8, wherein the early warning module selectively sends out early warning information according to the comparison result in the following manner:

If the first time period is less than the reference time period, the warning message is issued.
A parking air conditioner, wherein the parking air conditioner comprises the life warning system of the vehicle battery according to claim 8 or 9; or

The parking air conditioner includes a controller configured to execute the life warning method of a vehicle battery according to any one of claims 1 to 7.