WO2017113944A1

WO2017113944A1 - Battery pack temperature acquiring method and device

Info

Publication number: WO2017113944A1
Application number: PCT/CN2016/102745
Authority: WO
Inventors: 赵亮; 丑丽丽; 杨重科
Original assignee: 北京新能源汽车股份有限公司
Priority date: 2015-12-30
Filing date: 2016-10-20
Publication date: 2017-07-06
Also published as: CN105428737A; CN105428737B

Abstract

A battery pack temperature acquiring method and device. The method comprises: monitoring real-time temperatures of N batteries in the battery pack, wherein N is greater than 1 (101); assigning, according to the real-time temperatures of the N batteries and a suitable preset operating temperature range, weights to the N batteries, wherein a sum of the weights of the N batteries is 1 (102); and acquiring, according to the real-time temperatures and the corresponding weights of the N batteries, a temperature of the battery pack (103). Therefore, the present invention considers both the overall temperature of the battery pack and an extreme high temperature and extreme low temperature of an individual battery cell, thereby enabling the temperature of the battery pack to change smoothly and continuously.

Description

Battery pack temperature acquisition method and device

Cross-reference to related applications

The present application claims the priority of the Chinese Patent Application No. 201511020077.6, filed on December 30, 2015 by the Beijing New Energy Automobile Co., Ltd., entitled "Battery Temperature Acquisition Method and Apparatus".

Technical field

The present application relates to the field of power battery technologies, and in particular, to a battery pack temperature acquisition method and device.

Background technique

Many performance parameters of the power battery are closely related to the battery temperature, such as battery capacity, maximum discharge capacity, and maximum charging capacity. In an electric vehicle, the power battery pack is formed by connecting a plurality of batteries in series and in parallel. Due to the dispersion of the temperature field distribution, the temperature of each battery cell is different, and the battery management system performs charge and discharge control on the battery pack. When only one temperature value - battery pack temperature is used for control.

Existing solutions for calculating battery pack temperature: 1) The battery pack temperature is the average value of all monomer temperature collection points, and can not effectively protect the cell with the highest and lowest cell temperature; 2) select a specific temperature point, this temperature Above the point, the highest temperature of the monomer is the battery temperature. Below this temperature point, the lowest temperature of the monomer is the battery temperature. The algorithm battery temperature will have a large jump at this temperature point, thus causing the battery pack. The charge and discharge capacity has a large jump at this point.

Summary of the invention

The present application aims to solve at least one of the technical problems in the related art to some extent.

To this end, the first object of the present application is to propose a battery pack temperature acquisition method that takes into consideration the overall temperature of the battery pack and the extremely high or low temperature of the individual battery cells, thereby smoothly and continuously changing the temperature of the battery pack.

A second object of the present application is to provide a battery pack temperature acquiring device.

A third object of the present application is to propose an apparatus.

A fourth object of the present application is to propose a non-volatile computer storage medium.

To achieve the above objective, the first aspect of the present application provides a battery pack temperature acquisition method, including: monitoring real-time temperature of N batteries in a battery pack, wherein N is greater than 1; according to real-time temperature of the N batteries And assigning a weight to the N batteries according to a preset suitable working temperature interval, wherein the weight sum of the N batteries is 1; acquiring the battery pack according to the real-time temperature of the N batteries and the corresponding weight temperature.

The battery pack temperature obtaining method of the embodiment of the present application monitors the real-time temperature of the N batteries in the battery pack, wherein N is greater than 1; and allocates the according to the real-time temperature of the N batteries and a preset suitable working temperature interval. The weight of the N batteries, wherein the weight sum of the N batteries is 1; the temperature of the battery pack is obtained according to the real-time temperature of the N batteries and the corresponding weight. Thus, the battery pack temperature is smoothly and continuously changed in consideration of the overall temperature of the battery pack and the extremely high or low temperature of the individual battery cells.

To achieve the above objective, the second aspect of the present application provides a battery pack temperature acquiring device, including: a monitoring module for monitoring real-time temperature of N batteries in the battery pack, wherein N is greater than 1; And assigning weights of the N batteries according to a real-time temperature of the N batteries and a preset suitable working temperature interval, wherein a weight sum of the N batteries is 1; an acquiring module, configured to use, according to the N The real-time temperature of the batteries and the corresponding weights acquire the temperature of the battery pack.

The battery pack temperature obtaining device of the embodiment of the present application monitors the real-time temperature of the N batteries in the battery pack, wherein N is greater than 1; and allocates the according to the real-time temperature of the N batteries and a preset suitable working temperature interval. The weight of the N batteries, wherein the weight sum of the N batteries is 1; the temperature of the battery pack is obtained according to the real-time temperature of the N batteries and the corresponding weight. Thus, the battery pack temperature is smoothly and continuously changed in consideration of the overall temperature of the battery pack and the extremely high or low temperature of the individual battery cells.

A third aspect of the present invention provides an apparatus comprising: one or more processors; a memory; one or more programs, the one or more programs being stored in the memory when When the plurality of processors are executed, performing the following steps: monitoring the real-time temperature of the N batteries in the battery pack, wherein N is greater than 1; assigning the N according to the real-time temperature of the N batteries and a preset suitable operating temperature interval The weight of the battery, wherein the weight sum of the N batteries is 1; the temperature of the battery pack is obtained according to the real-time temperature of the N batteries and the corresponding weight.

A fourth aspect of the present invention provides a non-volatile computer storage medium storing one or more programs, when the one or more programs are executed by one device, causing the device Performing the following steps: monitoring the real-time temperature of the N batteries in the battery pack, where N is greater than 1; assigning weights of the N batteries according to the real-time temperature of the N batteries and a preset suitable operating temperature interval, wherein The weight sum of the N batteries is 1; the temperature of the battery pack is obtained according to real-time temperatures of the N batteries and corresponding weights.

DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from

1 is a flow chart of a battery pack temperature acquisition method according to an embodiment of the present application;

Figure 2 temperature weight of each battery at a higher temperature;

Figure 3 temperature weight of each battery at a lower temperature;

4 is a schematic structural view of a battery pack temperature acquiring device according to an embodiment of the present application.

detailed description

The embodiments of the present application are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are intended to be illustrative, and are not to be construed as limiting.

A battery pack temperature acquisition method and apparatus according to an embodiment of the present application will be described below with reference to the accompanying drawings.

1 is a flow chart of a battery pack temperature acquisition method according to an embodiment of the present application.

As shown in FIG. 1, the battery temperature obtaining method includes:

In step 101, the real-time temperature of the N batteries in the battery pack is monitored, wherein N is greater than one.

Specifically, in the battery management system control strategy, the battery pack temperature, battery charging, and discharge power control are all required to use the battery pack temperature. Therefore, a suitable operating temperature range corresponding to the type of the battery pack is set to monitor the real-time temperature of the N batteries in the battery pack, where N is greater than one.

Wherein, the suitable working temperature interval refers to the normal working range of each battery cell (abbreviated as battery) in the battery pack, and when the temperature of the battery exceeds the suitable working temperature range or is lower than the suitable working temperature range, it is not a normal temperature state. .

It should be noted that due to the different types of battery packs, the corresponding suitable operating temperature range is also different, for example:

The highest point of the suitable working temperature range of the ternary material battery is lower than the highest point of the suitable working temperature range of the lithium iron phosphate battery, and the lowest point of the suitable working temperature range of the ternary material battery is lower than the suitable working temperature range of the lithium iron phosphate battery. The lowest point.

Step 102: Allocate weights of the N batteries according to a real-time temperature of the N batteries and a preset suitable operating temperature interval, wherein the weight sum of the N batteries is 1.

Specifically, the weights of the N batteries are allocated according to the real-time temperature of the N batteries in the monitored battery pack and the preset suitable operating temperature interval, wherein the weight sum of the N batteries is 1.

Since the temperatures of the N batteries in the battery pack change in real time, the weights assigned to the N batteries also change in real time, but regardless of the weight of the N batteries, the weights of the N batteries in the battery pack are always 1. The specific weight distribution is described as follows:

The first example:

When the real-time temperatures of the N batteries all belong to the preset suitable operating temperature interval, the weight assigned to each battery is 1/N. E.g:

When the suitable operating temperature range is 20 degrees to 40 degrees, there are 10 batteries in the battery pack. The real-time temperatures of these 10 batteries are between 20 and 40 degrees, and the weight of each battery is 0.1.

The second example:

When the real-time temperature of the at least one battery is greater than the preset suitable operating temperature interval, the weights of the N batteries are allocated from large to small according to the real-time temperature of the N batteries in the battery pack from high to low. E.g:

Continuing with the above example, the suitable operating temperature range is 20 degrees to 40 degrees. When the real-time temperature of at least one battery is greater than 40 degrees, the real-time temperature of the 10 batteries in the battery pack is allocated from high to low, from large to small. The weight of 10 batteries, such as the weight of the highest temperature is 0.5, the weight of the second highest temperature is 0.1, and the remaining 0.05. The battery weight up to the highest temperature is 1, and the weight of the other battery temperatures is zero.

The third example:

When the real-time temperature of the at least one battery is less than the preset suitable operating temperature interval, the weights of the N batteries are allocated from large to small according to the real-time temperature of the N batteries from low to high.

Continuing with the above example, the suitable operating temperature range is 20 degrees to 40 degrees. When the real-time temperature of at least one battery is less than 20 degrees, the real-time temperature of the 10 batteries in the battery pack is distributed from low to high, from large to small. The weight of the 10 batteries, such as the weight of the lowest temperature is 0.5, the weight of the second low temperature is 0.1, and the remaining 0.05. The battery weight until the lowest temperature is 1, and the other battery temperatures have a weight of zero.

Further, in order to more effectively assign weights to N batteries according to the real-time temperature of the N batteries in the battery pack and the preset suitable operating temperature interval, the real-time temperature of the N batteries and the preset suitable operating temperature interval may be adopted. A corresponding linear curve, or polynomial curve, or an exponential curve determines the weight distribution of the N cells. For example, Figure 2 shows the temperature weight of each battery at a higher temperature, where Tmax is the temperature change that exceeds the appropriate operating temperature range. Figure 3 shows the temperature weight of each battery at a lower temperature, where Tmin is a temperature change below the appropriate operating temperature range.

Further, since a suitable working temperature interval corresponding to the type of the battery pack is set in advance, the battery type should be considered when determining the weight of each battery temperature point. For example, the ternary material battery should be increased higher than the lithium iron phosphate battery. The weight of the body temperature point, the lithium iron phosphate battery should increase the weight of the lower monomer temperature point in advance than the ternary material battery.

Step 103: Acquire a temperature of the battery pack according to real-time temperatures of the N batteries and corresponding weights.

Specifically, the temperature of the battery pack is obtained according to the real-time temperature of the N batteries and the corresponding weight. It is assumed that the temperatures of the N batteries are T1 to TN, the weights are respectively f1 to fN, and the temperature of the battery pack is:

(T ₁ *f ₁ +T ₂ *f ₂ +...+T _N *f _N )

List several situations:

The first example:

When the weight of each battery is 1/N, the average value of the real-time temperatures of the N batteries is used as the temperature of the battery pack, or

The second example:

When the battery weight of the highest temperature is 1, and the weight of the other battery temperature is 0, the highest temperature is applied as the temperature of the battery pack, or

The third example:

When the battery weight of the lowest temperature is 1, and the weight of the other battery temperature is 0, the lowest temperature is applied as the temperature of the battery pack.

In order to explain the above process more clearly, examples are as follows:

Example 1:

For a battery pack with 10 temperature detection points, T1 = -5 ° C, T2 = -2 ° C, and T3 - T10 = 3 ° C. According to the existing scheme 1, the battery pack temperature is calculated to be 1.7 ° C, and the battery management system controls according to this temperature, and the single-cell high-current charging and discharging of the lower temperature is easy to cause over-discharge when the anode is decomposed or discharged during charging. According to the battery pack temperature algorithm, the calculated battery pack temperature is -5 ° C, and the battery management system will reduce the charge and discharge current according to the low temperature characteristics of the battery.

It can be seen that the battery temperature algorithm can protect the monomer with the highest temperature or the monomer with the lowest temperature when the temperature of the monomer is large.

Example two:

For a battery pack with 10 temperature detection points, T10=49°C, T9=45°C, T8～T1=40°C at a certain time, the battery temperature rises to T10=50°C and T9=45°C at the next moment. T8 to T1 = 40 °C. According to the existing scheme 2, the battery pack temperature is raised from 41.4 ° C to 50 ° C, and the battery pack temperature jumps; if the battery pack temperature algorithm is used, the battery pack temperature is raised from 48.6 ° C to 50 ° C.

It can be seen that with the battery pack temperature algorithm, when the temperature of each monomer in the battery pack changes, the temperature of the battery pack can be ensured to be smooth and continuous.

The battery pack temperature obtaining method of the embodiment is configured to monitor a real-time temperature of the N batteries in the battery pack, wherein N is greater than 1; and assigning the N according to the real-time temperature of the N batteries and a preset suitable working temperature interval The weight of the battery, wherein the weight sum of the N batteries is 1; the temperature of the battery pack is obtained according to the real-time temperature of the N batteries and the corresponding weight. Thereby, the delay difference between the speaker and the microphone is tracked in real time, the reliable and stable operation of the adaptive filter is ensured, and the robustness of the recognition of the voice system is improved. Thus, the battery pack temperature is smoothly and continuously changed in consideration of the overall temperature of the battery pack and the extremely high or extremely low temperature of the individual battery cells.

In order to implement the above embodiments, the present application also proposes a battery pack temperature acquiring device.

As shown in FIG. 4, the battery pack temperature acquiring device includes:

The monitoring module 11 is configured to monitor real-time temperature of the N batteries in the battery pack, where N is greater than 1;

The processing module 12 is configured to allocate weights of the N batteries according to a real-time temperature of the N batteries and a preset suitable working temperature interval, wherein a weight sum of the N batteries is 1;

The obtaining module 13 is configured to acquire the temperature of the battery pack according to real-time temperatures of the N batteries and corresponding weights.

In one embodiment, the processing module 12 is configured to:

When the real-time temperatures of the N batteries all belong to the preset suitable operating temperature interval, the weight assigned to each battery is 1/N.

In another embodiment, the processing module 12 is configured to:

When the real-time temperature of the at least one battery is greater than the preset suitable operating temperature interval, the weights of the N batteries are allocated from the highest to the lowest according to the real-time temperature of the N batteries from high to low, until the highest temperature The battery weight is 1, and the other battery temperatures have a weight of zero.

In another embodiment, the processing module 12 is configured to:

When the real-time temperature of the at least one battery is less than the preset suitable operating temperature interval, the weights of the N batteries are allocated from the lowest to the lowest real-time temperature of the N batteries until the lowest temperature The battery weight is 1, and the other battery temperatures have a weight of zero.

In an embodiment, the obtaining module 13 is configured to:

In another embodiment, the obtaining module 13 is configured to:

Further, the processing module 12 is configured to:

The weight distribution of the N batteries is determined using a linear curve, or a polynomial curve, or an exponential curve corresponding to the real-time temperature of the N batteries and a preset suitable operating temperature interval.

Further, the processing module 12 is further configured to:

A suitable operating temperature interval corresponding to the type of the battery pack is set in advance.

It should be noted that the foregoing explanation of the embodiment of the battery pack temperature acquisition method is also applicable to the battery pack temperature acquisition device of the embodiment, and details are not described herein again.

The battery pack temperature obtaining device of the embodiment of the present application monitors the real-time temperature of the N batteries in the battery pack, wherein N is greater than 1; and allocates the according to the real-time temperature of the N batteries and a preset suitable working temperature interval. The weight of the N batteries, wherein the weight sum of the N batteries is 1; the temperature of the battery pack is obtained according to the real-time temperature of the N batteries and the corresponding weight. Thereby, the delay difference between the speaker and the microphone is tracked in real time, the reliable and stable operation of the adaptive filter is ensured, and the robustness of the recognition of the voice system is improved. Thus, the battery pack temperature is smoothly and continuously changed in consideration of the overall temperature of the battery pack and the extremely high or low temperature of the individual battery cells.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the application. In the present specification, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, various embodiments or examples described in the specification, as well as features of various embodiments or examples, may be combined and combined.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

Any process or method description in the flowcharts or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a particular logical function or process. And the scope of the preferred embodiments of the present application includes additional implementations, in which the functions may be performed in a substantially simultaneous manner or in the reverse order depending on the functions involved, in accordance with the illustrated or discussed order. It will be understood by those skilled in the art to which the embodiments of the present application pertain.

The logic and/or steps represented in the flowchart or otherwise described herein, for example, may be considered as an ordered list of executable instructions for implementing logical functions, and may be embodied in any computer readable medium, Used in conjunction with, or in conjunction with, an instruction execution system, apparatus, or device (eg, a computer-based system, a system including a processor, or other system that can fetch instructions and execute instructions from an instruction execution system, apparatus, or device) Or use with equipment. For the purposes of this specification, a "computer readable medium" can be any that can contain, store, communicate, and propagate. Or a program that transmits a program for use in an instruction execution system, apparatus, or device, or a system, device, or device in conjunction with such instructions. More specific examples (non-exhaustive list) of computer readable media include the following: electrical connections (electronic devices) having one or more wires, portable computer disk cartridges (magnetic devices), random access memory (RAM), Read only memory (ROM), erasable editable read only memory (EPROM or flash memory), fiber optic devices, and portable compact disk read only memory (CDROM). In addition, the computer readable medium may even be a paper or other suitable medium on which the program can be printed, as it may be optically scanned, for example by paper or other medium, followed by editing, interpretation or, if appropriate, other suitable The method is processed to obtain the program electronically and then stored in computer memory.

It should be understood that portions of the application can be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques well known in the art: having logic gates for implementing logic functions on data signals. Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

One of ordinary skill in the art can understand that all or part of the steps carried by the method of implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, one or a combination of the steps of the method embodiments is included.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. The integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.

The above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like. While the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the present application. The embodiments are subject to variations, modifications, substitutions and variations.

Claims

A battery pack temperature acquisition method, comprising the steps of:

Monitoring the real-time temperature of the N batteries in the battery pack, wherein N is greater than 1;

Assigning a weight of the N batteries according to a real-time temperature of the N batteries and a preset suitable operating temperature interval, wherein a weight sum of the N batteries is 1;

The temperature of the battery pack is obtained according to real-time temperatures of the N batteries and corresponding weights.
The method according to claim 1, wherein said assigning weights of said N batteries according to said real-time temperature of said N batteries and a preset suitable operating temperature interval, wherein said N batteries The sum of weights is 1, including:

When the real-time temperatures of the N batteries all belong to the preset suitable operating temperature interval, the weight assigned to each battery is 1/N.
The method according to claim 1 or 2, wherein the weights of the N batteries are allocated according to a real-time temperature of the N batteries and a preset suitable operating temperature interval, wherein the N The battery has a weight sum of 1, including:

When the real-time temperature of the at least one battery is greater than the preset suitable operating temperature interval, the weights of the N batteries are allocated according to the real-time temperature of the N batteries from high to low, wherein the highest temperature The battery weight is 1, and the other battery temperatures have a weight of zero.
The method according to any one of claims 1 to 3, wherein the weights of the N batteries are allocated according to a real-time temperature of the N batteries and a preset suitable operating temperature interval, wherein the N cells have a weight sum of 1, including:

When the real-time temperature of the at least one battery is less than the preset suitable operating temperature interval, the weights of the N batteries are allocated according to the real-time temperature of the N batteries from low to high, wherein the lowest temperature The battery weight is 1, and the other battery temperatures have a weight of zero.
The method according to any one of claims 1-4, wherein the obtaining the temperature of the battery pack according to the real-time temperature of the N batteries and the corresponding weight comprises:

When the weight of each battery is 1/N, the average value of the real-time temperatures of the N batteries is used as the temperature of the battery pack, or

When the battery weight of the highest temperature is 1, and the weight of the other battery temperature is 0, the highest temperature is applied as the temperature of the battery pack, or

When the lowest temperature battery weight is 1, and the other battery temperature weight is 0, the lowest temperature is applied as the The temperature of the battery pack.
The method according to any one of claims 1 to 5, wherein the weights of the N batteries are allocated according to a real-time temperature of the N batteries and a preset suitable operating temperature interval, wherein the N cells have a weight sum of 1, including:

The weight distribution of the N batteries is determined using a linear curve, or a polynomial curve, or an exponential curve corresponding to the real-time temperature of the N batteries and a preset suitable operating temperature interval.
The method of any of claims 1-6, further comprising:

A suitable operating temperature interval corresponding to the type of the battery pack is set in advance.
A battery pack temperature obtaining device, comprising:

a monitoring module for monitoring real-time temperature of N batteries in the battery pack, wherein N is greater than 1;

a processing module, configured to allocate weights of the N batteries according to a real-time temperature of the N batteries and a preset suitable operating temperature interval, wherein a weight sum of the N batteries is 1;

And an obtaining module, configured to acquire a temperature of the battery pack according to real-time temperatures of the N batteries and corresponding weights.
The apparatus of claim 8 wherein said processing module is operative to:

When the real-time temperatures of the N batteries all belong to the preset suitable operating temperature interval, the weight assigned to each battery is 1/N.
The device according to claim 8 or 9, wherein the processing module is configured to:

When the real-time temperature of the at least one battery is greater than the preset suitable operating temperature interval, the weights of the N batteries are allocated according to the real-time temperature of the N batteries from high to low, wherein the highest temperature The battery weight is 1, and the other battery temperatures have a weight of zero.
The apparatus according to any one of claims 8 to 10, wherein the processing module is configured to:

When the real-time temperature of the at least one battery is less than the preset suitable operating temperature interval, the weights of the N batteries are allocated according to the real-time temperature of the N batteries from low to high, wherein the lowest temperature The battery weight is 1, and the other battery temperatures have a weight of zero.
The device according to any one of claims 8-11, wherein the obtaining module is configured to:

When the weight of each battery is 1/N, the average value of the real-time temperatures of the N batteries is used as the temperature of the battery pack, or

When the battery weight of the highest temperature is 1, and the weight of the other battery temperature is 0, the highest temperature is applied as the temperature of the battery pack, or

When the battery weight of the lowest temperature is 1, and the weight of the other battery temperature is 0, the lowest temperature is applied as the temperature of the battery pack.
The apparatus according to any one of claims 8 to 12, wherein the processing module is configured to:

The weight distribution of the N batteries is determined using a linear curve, or a polynomial curve, or an exponential curve corresponding to the real-time temperature of the N batteries and a preset suitable operating temperature interval.
The device according to any one of claims 8-13, wherein the processing module is further configured to:

A suitable operating temperature interval corresponding to the type of the battery pack is set in advance.
An apparatus, comprising:

One or more processors;

Memory

One or more programs, the one or more programs being stored in the memory, and when executed by the one or more processors, performing the following steps:

Receiving information input by the user on the input method interface;

Obtaining website information corresponding to the input information; and

The website information is displayed for selection by the user.
A non-volatile computer storage medium, characterized in that the computer storage medium stores one or more programs, when the one or more programs are executed by a device, causing the device to perform the following steps:

Receiving information input by the user on the input method interface;

Obtaining website information corresponding to the input information; and

The website information is displayed for selection by the user.