Method, device, equipment and medium for matching castor parameters of four-wheel aligner

Abstract

The present invention relates to the field of automobile detection technology, and discloses a kingpin caster parameter matching method, device, equipment and medium of a four-wheel aligner. The kingpin caster parameter matching method of the four-wheel aligner is applied to the four-wheel aligner. The present invention starts the four-wheel aligner. First, the user can input the vehicle type identification, the front wheel value to be matched and the rear wheel value to be matched on the operation panel interface of the four-wheel aligner host; then, according to the vehicle type identification, the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter and the rear wheel difference parameter corresponding to the vehicle type identification are extracted from the target database; through the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter, the rear wheel difference parameter and the front wheel value to be matched and the rear wheel value to be matched, the kingpin caster parameter corresponding to the front wheel value to be matched and the rear wheel value to be matched is determined, and the matching efficiency of the kingpin caster range is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile detection, and in particular to a method, device, equipment and medium for matching castor parameters of a four-wheel aligner. Background Art

[0002] Kingpin caster means that the kingpin is installed on the front axle, and its upper end is slightly tilted backward, so the kingpin axis and the ground vertical line passing through the center line of the front wheel form an angle in the longitudinal plane of the car, which is called the kingpin caster angle. Its main function is to maintain the stability of the car when it is driving in a straight line, and to make the front wheels automatically return to the center after the car turns.

[0003] At present, the four-wheel alignment software converts the front and rear wheel parameters and kingpin caster parameters in the original data format into the front and rear wheel parameters and kingpin caster parameters in an easy-to-read and easy-to-maintain format. The kingpin caster parameters after the format conversion are arranged in ascending or descending order and stored in the data table of the database. When the user enters the front wheel value and the rear wheel value, it is necessary to search and match the kingpin caster parameters corresponding to the input front wheel value and the rear wheel value one by one from the data table. After the kingpin caster parameters are matched, the position of the kingpin caster parameters is marked.

[0004] However, when the number of castor parameters is relatively large, searching and matching takes a lot of time, which makes the efficiency of the four-wheel aligner in searching and matching castor parameters low. Summary of the invention

[0005] The main purpose of the invention is to provide a method, device, equipment and medium for matching kingpin caster parameters of a four-wheel aligner, aiming to improve the matching efficiency of the kingpin caster parameters of the four-wheel aligner.

[0006] To achieve the above object, the present invention provides a method for matching castor parameters of a four-wheel aligner, the method comprising the following steps:

[0007] Get the input vehicle model identification, the front wheel value to be matched, and the rear wheel value to be matched;

[0008] Based on the vehicle type identification, extracting the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter and the rear wheel difference parameter corresponding to the vehicle type identification from the target database;

[0009] Based on the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter, the rear wheel difference parameter, the front wheel value to be matched, and the rear wheel value to be matched, a corresponding kingpin caster parameter is determined.

[0010] Preferably, before the step of obtaining the vehicle type identification, the front wheel value to be matched and the rear wheel value to be matched input by the user, the castor parameter matching method of the four-wheel aligner further includes:

[0011] For each vehicle type identification, obtaining a corresponding front wheel range parameter and a rear wheel range parameter; each of the front wheel range parameter and the rear wheel range parameter is at least one;

[0012] Arrange and combine the front wheel range parameter and the rear wheel range parameter corresponding to each vehicle type identification according to a preset rule and store them in a preset table in the target database, wherein each combination of the front wheel range parameter and the rear wheel range parameter occupies one row; and store the corresponding vehicle type identification in the row where each combination of the front wheel range parameter and the rear wheel range parameter is located;

[0013] For each vehicle type identification, a range difference of each front wheel range parameter is calculated to form a corresponding front wheel difference parameter, and a range difference of each rear wheel range parameter is calculated to form a corresponding rear wheel difference parameter; and the front wheel difference parameters and the rear wheel difference parameters are stored in the target database in a preset order.

[0014] Preferably, the step of determining the corresponding kingpin caster parameter based on the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter, the rear wheel difference parameter and the front wheel value to be matched and the rear wheel value to be matched comprises:

[0015] According to the vehicle type identification input by the user, the number X of corresponding front wheel range parameters and the number Y of corresponding rear wheel range parameters are determined in the target database;

[0016] Determine the index value Z of the first row of the vehicle model identification in the preset table;

[0017] The front wheel coefficient M is obtained by sequentially adding the front wheel difference parameter to the minimum value of the front wheel range parameter until the sum is greater than the front wheel value to be matched;

[0018] The rear wheel coefficient N is obtained by sequentially adding the rear wheel difference parameter to the minimum value of the rear wheel range parameter until the sum is greater than the rear wheel value to be matched;

[0019] Determine a target row S according to the number X of front wheel range parameters, the number Y of rear wheel range parameters, the first row index value Z, the front wheel coefficient M and the rear wheel coefficient N;

[0020] The corresponding kingpin caster parameter is determined based on the front wheel range parameter and the rear wheel range parameter corresponding to the target row S.

[0021] Preferably, the preset rule is an ascending order of the rear wheel range parameters, and the step of determining the target row S according to the number X of the front wheel range parameters, the number Y of the rear wheel range parameters, the first row index value Z, the front wheel coefficient M and the rear wheel coefficient N comprises:

[0022] The target row S is determined according to the number X of the front wheel range parameters, the rear wheel coefficient N, the first row index value Z and the front wheel coefficient M.

[0023] Preferably, the preset rule is an ascending order of the front wheel range parameters, and the step of determining the target row S according to the number X of the front wheel range parameters, the number Y of the rear wheel range parameters, the first row index value Z, the front wheel coefficient M and the rear wheel coefficient N comprises:

[0024] The target row S is determined according to the number Y of the rear wheel range parameters, the front wheel coefficient M, the first row index value Z and the rear wheel coefficient N.

[0025] Preferably, before the step of obtaining the vehicle type identification, the front wheel value to be matched, and the rear wheel value to be matched input by the user, the method further includes:

[0026] The number X of front wheel range parameters corresponding to each vehicle type identification and the number Y of rear wheel range parameters corresponding to each vehicle type identification are determined and stored in the target database.

[0027] Preferably, before the step of obtaining the vehicle type identification, the front wheel value to be matched, and the rear wheel value to be matched input by the user, the method further includes:

[0028] For each vehicle model identification, each combination of the front wheel range parameter and the rear wheel range parameter is bound and stored with its corresponding kingpin caster parameter.

[0029] In addition, to achieve the above-mentioned purpose, the present invention also provides a kingpin castor parameter matching device for a four-wheel aligner, the kingpin castor parameter matching device for the four-wheel aligner comprising:

[0030] An acquisition module is used to acquire an input vehicle model identification, a front wheel value to be matched, and a rear wheel value to be matched;

[0031] an extraction module, for extracting, based on the vehicle type identification, a front wheel range parameter, a rear wheel range parameter, a front wheel difference parameter, and a rear wheel difference parameter corresponding to the vehicle type identification from a target database;

[0032] A determination module is used to determine a corresponding kingpin caster parameter based on the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter, the rear wheel difference parameter, the front wheel value to be matched, and the rear wheel value to be matched.

[0033] In addition, to achieve the above-mentioned purpose, the present invention also provides a device, which is a four-wheel aligner, and the four-wheel aligner includes: a memory, a processor, and a kingpin caster parameter matching program of the four-wheel aligner stored in the memory and executable on the processor, and when the kingpin caster parameter matching program of the four-wheel aligner is executed by the processor, the steps of the kingpin caster parameter matching method of the four-wheel aligner as described above are implemented.

[0034] In addition, to achieve the above-mentioned purpose, the present invention also provides a medium, which is a computer-readable storage medium, on which a kingpin castor parameter matching program of a four-wheel aligner is stored, and when the kingpin castor parameter matching program of the four-wheel aligner is executed by a processor, the steps of the kingpin castor parameter matching method of the four-wheel aligner as described above are implemented.

[0035] The present invention proposes a kingpin caster parameter matching method, device, equipment and medium for a four-wheel aligner; the kingpin caster parameter matching method for a four-wheel aligner is applied to the four-wheel aligner; the kingpin caster parameter matching method for the four-wheel aligner comprises: obtaining a vehicle type identification, a front wheel value to be matched and a rear wheel value to be matched input by a vehicle type; based on the vehicle type identification, extracting a front wheel range parameter, a rear wheel range parameter, a front wheel difference parameter and a rear wheel difference parameter corresponding to the vehicle type identification from a target database; based on the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter, the rear wheel difference parameter and the front wheel value to be matched and the rear wheel value to be matched, determining a corresponding kingpin caster parameter. Therefore, the present invention starts the four-wheel aligner. First, the user can input the vehicle type identification, the front wheel value to be matched and the rear wheel value to be matched on the operation panel interface of the four-wheel aligner host; then, according to the vehicle type identification, the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter and the rear wheel difference parameter corresponding to the vehicle type identification are extracted from the target database; through the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter, the rear wheel difference parameter and the parameters such as the front wheel value to be matched and the rear wheel value to be matched, the kingpin caster parameter corresponding to the front wheel value to be matched and the rear wheel value to be matched is determined, thereby further improving the matching efficiency of the kingpin caster parameter of the four-wheel aligner. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the device structure of the hardware operating environment involved in the embodiment of the present invention;

[0037] Figure 2 It is a flow chart of a first embodiment of a method for matching kingpin caster parameters of a four-wheel aligner according to the present invention;

[0038] Figure 3 It is a flow chart of a second embodiment of a method for matching castor parameters of a four-wheel aligner according to the present invention;

[0039] Figure 4 It is a flow chart of a third embodiment of a method for matching kingpin caster parameters of a four-wheel aligner according to the present invention;

[0040] Figure 5 It is a schematic diagram of a sub-flow chart of a fourth embodiment of a method for matching kingpin caster parameters of a four-wheel aligner according to the present invention;

[0041] Figure 6 It is a flow chart of a fifth embodiment of a method for matching kingpin caster parameters of a four-wheel aligner according to the present invention;

[0042] Figure 7 It is a flow chart of a sixth embodiment of a method for matching kingpin caster parameters of a four-wheel aligner according to the present invention;

[0043] Figure 8 It is a flow chart of a seventh embodiment of a method for matching kingpin caster parameters of a four-wheel aligner according to the present invention;

[0044] Fig. 9 It is a functional module diagram of the first embodiment of the kingpin caster parameter matching method of the four-wheel aligner of the present invention.

[0045] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0046] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0047] like Figure 1 As shown, Figure 1 It is a schematic diagram of the device structure of the hardware operating environment involved in the embodiment of the present invention.

[0048] The device in the embodiment of the present invention may be a four-wheel aligner.

[0049] like Figure 1As shown, the device may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, and a communication bus 1002. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1005 may be a high-speed RAM memory, or it may be a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0050] Those skilled in the art will understand that Figure 1 The device structure shown in the figure does not constitute a limitation of the device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0051] like Figure 1 As shown, the memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a castor parameter matching program of a four-wheel aligner.

[0052] Among them, the operating system is a program for managing and controlling the four-wheel aligner equipment and software resources, supporting the operation of the network communication module, the user interface module, the four-wheel aligner's kingpin caster parameter matching program and other programs or software; the network communication module is used to manage and control the network interface 1002; the user interface module is used to manage and control the user interface 1003.

[0053] exist Figure 1 In the four-wheel aligner device shown, the four-wheel aligner device calls the caster parameter matching program of the four-wheel aligner stored in the memory 1005 through the processor 1001, and executes the operations in each embodiment of the caster parameter matching method of the four-wheel aligner described below.

[0054] Based on the above hardware structure, an embodiment of a method for matching castor parameters of a four-wheel aligner of the present invention is proposed.

[0055] Reference Figure 2 , Figure 2 This is a flow chart of a first embodiment of a method for matching kingpin caster parameters of a four-wheel aligner according to the present invention. The method for matching kingpin caster parameters of a four-wheel aligner comprises:

[0056] Step S10, obtaining the vehicle type identification, the front wheel value to be matched, and the rear wheel value to be matched of the vehicle type input;

[0057] Step S20, based on the vehicle type identification, extracting the front wheel range parameter, rear wheel range parameter, front wheel difference parameter and rear wheel difference parameter corresponding to the vehicle type from the target database;

[0058] Step S30, determining a corresponding kingpin caster parameter based on the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter, the rear wheel difference parameter, the front wheel value to be matched, and the rear wheel value to be matched.

[0059] The kingpin caster parameter matching method of the four-wheel aligner of the present embodiment is applied to the four-wheel aligner. When the four-wheel aligner is started, first, the user can input the vehicle type identification, the front wheel value to be matched and the rear wheel value to be matched on the operation panel interface of the four-wheel aligner host; then, according to the vehicle type identification, the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter and the rear wheel difference parameter corresponding to the vehicle type identification are extracted from the target database; through the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter, the rear wheel difference parameter and the parameters such as the front wheel value to be matched and the rear wheel value to be matched, the kingpin caster parameter corresponding to the front wheel value to be matched and the rear wheel value to be matched is determined, thereby further improving the matching efficiency of the kingpin caster parameter of the four-wheel aligner.

[0060] The following is a detailed description of each step:

[0061] Step S10, obtaining the vehicle type identification, the front wheel value to be matched, and the rear wheel value to be matched input by the user.

[0062] In this embodiment, the caster parameter matching method of the four-wheel aligner is applied to the four-wheel aligner. The main function of the four-wheel aligner is to detect whether the alignment parameters of the worn-out automobile wheels meet the standard parameters at the factory, so as to prevent the wear degree of the newly replaced tires from increasing due to parameter changes, thereby reducing the expected service life of the tires and the car body. At the same time, it prevents the tire angle parameters from floating too much, causing insensitivity during driving, thereby enhancing driving safety. In order to ensure the safety of the car during long-term driving and extend the service life of the vehicle, the owner can choose a suitable model of four-wheel aligner for regular detection and adjustment, so as to enjoy the dual benefits of safety and convenience.

[0063] Four-wheel alignment refers to the installation of the four wheels, steering mechanism, front and rear axles of the vehicle in a certain relative position. The relative position is the standard value set by the manufacturer, and the installation of the position is adjusted and restored. Four-wheel alignment can ensure the straightness, driving stability and automatic steering return of the vehicle, reduce tire wear, and avoid vehicle failure problems. It is recommended to do a four-wheel alignment for the vehicle when the vehicle runs off the track, the tires are severely worn, after a vehicle accident, and every 20,000 kilometers of driving.

[0064] The four-wheel alignment instrument consists of a four-wheel alignment instrument host, a detection rod, a communication line, a wheel clamp, a steering wheel, a steering wheel bracket, a brake plate bracket, etc. The four-wheel alignment instrument host is an operation control platform for the user. It consists of a cabinet, a computer, a power supply, etc.

[0065] When starting the four-wheel aligner, the user can enter the vehicle model ID in the navigation bar of the four-wheel aligner host's operation panel interface; or enter the vehicle model ID in the commonly used data list of the four-wheel aligner host's operation panel interface; when the commonly used data list does not have the vehicle model ID the user needs, the user can also directly search for the vehicle model ID in the four-wheel aligner's standard database; or enter the vehicle model ID in the quick search input box on the four-wheel aligner host's operation panel interface. After the user enters the selected vehicle model ID, go directly to the next step. According to the prompts of the four-wheel aligner host's operation panel interface, enter the front wheel value to be matched and the rear wheel value to be matched.

[0066] Step S20, based on the vehicle type identification, extracting the front wheel range parameter, rear wheel range parameter, front wheel difference parameter and rear wheel difference parameter corresponding to the vehicle type from the target database.

[0067] In this embodiment, according to the vehicle type identification input by the user in the operation panel interface of the four-wheel alignment host, the front wheel range parameter, rear wheel range parameter, front wheel difference parameter and rear wheel difference parameter corresponding to the vehicle type identification can be extracted from the target database.

[0068] In this embodiment, the target database is a database in the form of an easy-to-read and easy-to-maintain database, which can be called by the four-wheel alignment program and modified and maintained by maintenance personnel. In this embodiment, the target database selects a database of Access format data. Among them, the actual target database can be set according to actual conditions.

[0069] The target database includes but is not limited to: vehicle model identification, front wheel range parameters, rear wheel range parameters, front wheel difference parameters and rear wheel difference parameters, caster parameters corresponding to the front wheel range parameters and rear wheel range parameters, minimum value of the front wheel range parameters, maximum value of the front wheel range parameters, minimum value of the rear wheel range parameters, maximum value of the rear wheel range parameters, number of front and rear wheel range parameters, etc.

[0070] According to the vehicle type identification input by the user, the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter and the rear wheel difference parameter corresponding to the vehicle type identification are extracted from the target database.

[0071] Step S30, determining a corresponding castor parameter based on the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter, the rear wheel difference parameter, the front wheel value to be matched, and the rear wheel value to be matched.

[0072] In one embodiment, according to the vehicle type identification input on the operation panel interface of the four-wheel aligner host, the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter and the rear wheel difference parameter are extracted from the target database; then, according to the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter and the rear wheel difference parameter, and the front wheel value to be matched and the rear wheel value to be matched, the target row of the kingpin castor parameter corresponding to the front wheel value to be matched and the rear wheel value to be matched is determined, so as to further determine the corresponding kingpin castor parameter through the target row, the front wheel range parameter and / or the rear wheel range parameter.

[0073] The kingpin caster parameter matching method of the four-wheel aligner of the present embodiment is applied to the four-wheel aligner. When the four-wheel aligner is started, first, the user can input the vehicle type identification, the front wheel value to be matched and the rear wheel value to be matched on the operation panel interface of the four-wheel aligner host; then, according to the vehicle type identification, the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter and the rear wheel difference parameter corresponding to the vehicle type identification are extracted from the target database; through the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter, the rear wheel difference parameter and the parameters such as the front wheel value to be matched and the rear wheel value to be matched, the kingpin caster parameter corresponding to the front wheel value to be matched and the rear wheel value to be matched is determined, thereby further improving the matching efficiency of the kingpin caster parameter of the four-wheel aligner.

[0074] Furthermore, based on the first embodiment of the method for matching kingpin caster parameters of a four-wheel aligner of the present invention, a second embodiment of the method for matching kingpin caster parameters of a four-wheel aligner of the present invention is proposed.

[0075] The difference between the second embodiment of the method for matching castor parameters of a four-wheel aligner and the first embodiment of the method for matching castor parameters of a four-wheel aligner is that before the step of obtaining the vehicle type identification, the front wheel value to be matched and the rear wheel value to be matched input by the user in step S10, referring to Figure 3 The kingpin caster parameter matching method of the four-wheel aligner also includes:

[0076] Step A10, for each vehicle type identification, obtaining a corresponding front wheel range parameter and a rear wheel range parameter; each of the front wheel range parameter and the rear wheel range parameter is at least one;

[0077] Step A20, arranging and combining the front wheel range parameter and the rear wheel range parameter corresponding to each vehicle type identification according to a preset rule and storing them in a preset table in the target database, wherein each combination of the front wheel range parameter and the rear wheel range parameter occupies one row; and storing the corresponding vehicle type identification in the row where each combination of the front wheel range parameter and the rear wheel range parameter is located;

[0078] Step A30, for each vehicle type identification, calculate the range difference of each front wheel range parameter to form the corresponding front wheel difference parameter, and calculate the range difference of each rear wheel range parameter to form the corresponding rear wheel difference parameter; store the front wheel difference parameters and the rear wheel difference parameters in the target database according to a preset order.

[0079] In this embodiment, for each vehicle type identification, the corresponding front wheel range parameter and rear wheel range parameter are obtained from the original database; the front wheel range parameter and the rear wheel range parameter are arranged and combined according to a preset rule and stored in a preset table in the target database; the difference of each front wheel range parameter is calculated to form a corresponding front wheel difference parameter, and the difference of each rear wheel range parameter is calculated to form a corresponding rear wheel difference parameter; the front wheel difference parameter and the rear wheel difference parameter are stored in the target database according to a preset order; thereby improving the response speed of the four-wheel alignment instrument.

[0080] The following is a detailed description of each step:

[0081] Step A10, for each vehicle type identification, obtaining the corresponding front wheel range parameter and rear wheel range parameter; the number of each of the front wheel range parameter and the rear wheel range parameter is at least one.

[0082] In this embodiment, the front wheel range parameter and the rear wheel range parameter corresponding to each vehicle type identification are obtained from the original database, wherein the front wheel range parameter and the rear wheel range parameter are greater than or equal to one. The data format in the original database is XML format data.

[0083] For example, for vehicle type identification A, the front wheel range parameters and rear wheel range parameters corresponding to the vehicle type identification A are obtained from the original database, wherein the front wheel range parameters include: [1, 5), [5, 7), [9, 15), and the rear wheel range parameters include: [7, 9), [9, 12).

[0084] Step A20, the front wheel range parameters and the rear wheel range parameters corresponding to each vehicle model identification are arranged and combined according to preset rules and stored in a preset table in the target database, wherein each combination of the front wheel range parameter and the rear wheel range parameter occupies a row; the corresponding vehicle model identification is stored in the row where each combination of the front wheel range parameter and the rear wheel range parameter is located.

[0085] In this embodiment, in order to improve the response speed of the four-wheel alignment instrument, the data in the original database is parsed to obtain the front wheel range parameters and the rear wheel range parameters in the target format. The target format is a data form that is easy to read and maintain. The data in this target format can be conveniently called by the four-wheel alignment instrument program and modified and maintained by maintenance personnel. In this embodiment, the target format selects the Access format. After the xml data is converted into an Access database table, the front wheel range parameters and the rear wheel range parameters corresponding to each vehicle type identification are arranged and combined according to preset rules and stored in a preset table. Among them, the preset rules can be set according to actual conditions. The corresponding vehicle type identification is stored in the row where each combination of the front wheel range parameter and the rear wheel range parameter is located.

[0086] For example, for vehicle type identification A, the front wheel range parameters corresponding to the vehicle type identification A include: [1, 5), [5, 7), [9, 15), and the rear wheel range parameters corresponding to the vehicle type identification A include: [7, 9), [9, 12). Taking the rear wheel range parameters in ascending order as an example, each front wheel range parameter and rear wheel range parameter are arranged and combined in ascending order of the rear wheel range parameter to form Table 1. Among them, FA_MIN is the minimum value of the front wheel range parameter, FA_MAX is the maximum value of the front wheel range parameter, RA_MIN is the minimum value of the rear wheel range parameter, and RA_MAX is the maximum value of the rear wheel range parameter.

[0087] Model logo FA_MIN FA_MAX RA_MIN RA_MAX A 1 5 7 9 A 5 7 7 9 A 9 15 7 9 A 1 5 9 12 A 5 7 9 12 A 9 15 9 12

[0088] Table 1 Preset table according to ascending order rule

[0089] Step A30, for each vehicle type identification, calculate the range difference of each front wheel range parameter to form the corresponding front wheel difference parameter, and calculate the range difference of each rear wheel range parameter to form the corresponding rear wheel difference parameter; store the front wheel difference parameters and the rear wheel difference parameters in the target database according to a preset order.

[0090] For example, the front wheel range parameters include: [1, 5), [5, 7), [9, 15), then the front wheel difference parameters are 4, 2, 6 respectively; the rear wheel range parameters include: [7, 9), [9, 12), then the rear wheel difference parameters are 2, 3 respectively.

[0091] Each front wheel difference parameter and rear wheel difference parameter is stored according to the rule of the arrangement order of the front wheel difference parameters. The specific forms of the front wheel difference parameters and the rear wheel difference parameters refer to Table 2.

[0092] Model logo Front wheel difference Rear wheel differential A 4 2 A 2 3 A 6

[0093] Table 2

[0094] In this embodiment, for each vehicle type identification, the corresponding front wheel range parameter and rear wheel range parameter are obtained from the original database; the front wheel range parameter and the rear wheel range parameter are arranged and combined according to a preset rule and stored in a preset table in the target database; the difference of each front wheel range parameter is calculated to form a corresponding front wheel difference parameter, and the difference of each rear wheel range parameter is calculated to form a corresponding rear wheel difference parameter; the front wheel difference parameter and the rear wheel difference parameter are stored in the target database according to a preset order; thereby improving the response speed of the four-wheel alignment instrument.

[0095] Furthermore, based on the first and second embodiments of the kingpin caster parameter matching method for a four-wheel aligner of the present invention, a third embodiment of the kingpin caster parameter matching method for a four-wheel aligner of the present invention is proposed.

[0096] The third embodiment of the method for matching kingpin caster parameters of a four-wheel aligner is different from the first and second embodiments of the method for matching kingpin caster parameters of a four-wheel aligner in that the present embodiment is a refinement of step S30, wherein the corresponding kingpin caster parameter is determined based on the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter, the rear wheel difference parameter, the front wheel value to be matched, and the rear wheel value to be matched, with reference to Figure 4 , the step specifically includes:

[0097] Step S31, according to the vehicle type identification input by the user, determining the number X of corresponding front wheel range parameters and the number Y of corresponding rear wheel range parameters in the target database;

[0098] Step S32, determining the index value Z of the first row of the vehicle model identification in the preset table;

[0099] Step S33, using the minimum value of the front wheel range parameter to add the front wheel difference parameter in sequence until the sum is greater than the front wheel value to be matched, to obtain a front wheel coefficient M;

[0100] Step S34, using the minimum value of the rear wheel range parameter to add the rear wheel difference parameter in sequence until the sum is greater than the rear wheel value to be matched, to obtain a rear wheel coefficient N;

[0101] Step S35, determining a target row S according to the number X of the front wheel range parameters, the number Y of the rear wheel range parameters, the first row index value Z, the front wheel coefficient M and the rear wheel coefficient N;

[0102] Step S36, determining the corresponding kingpin caster parameter based on the front wheel range parameter and the rear wheel range parameter corresponding to the target row S.

[0103] This embodiment determines the number X of corresponding front wheel range parameters and the number Y of corresponding rear wheel range parameters in the target database according to the vehicle type identification input by the user; determines the first row index value Z of the vehicle type identification in the preset table; uses the minimum value of the front wheel range parameter to add the front wheel difference parameter in sequence until the sum is greater than the front wheel value to be matched, thereby obtaining the front wheel coefficient M; uses the minimum value of the rear wheel range parameter to add the rear wheel difference parameter in sequence until the sum is greater than the rear wheel value to be matched, thereby obtaining the rear wheel coefficient N; determines the corresponding target row S of the kingpin castor parameter according to the number X of the front wheel range parameters, the number Y of the rear wheel range parameters, the first row index value Z, the front wheel coefficient M and the rear wheel coefficient N; determines the corresponding kingpin castor parameter according to the front wheel range parameter and the rear wheel range parameter corresponding to the target row S; thereby further improving the accuracy of the kingpin castor parameter matching.

[0104] The following is a detailed description of each step:

[0105] Step S31 : determining the number X of corresponding front wheel range parameters and the number Y of corresponding rear wheel range parameters in a target database according to the vehicle type identification input by the user.

[0106] In this embodiment, the target database includes but is not limited to: vehicle model identification, front wheel range parameters, rear wheel range parameters, front wheel difference parameters and rear wheel difference parameters, kingpin inclination parameters corresponding to the front wheel range parameters and the rear wheel range parameters, the minimum value of the front wheel range parameters, the maximum value of the front wheel range parameters, the minimum value of the rear wheel range parameters, the maximum value of the rear wheel range parameters, the number of front and rear wheel range parameters, etc.

[0107] For example, for vehicle type identification A, the front wheel range parameters corresponding to the vehicle type identification A include: [1, 5), [5, 7), [9, 15), and the rear wheel range parameters corresponding to the vehicle type identification A include: [7, 9), [9, 12). Then the number X of the corresponding front wheel range parameters determined by the vehicle type identification is 3, and the number Y of the corresponding rear wheel range parameters is 2.

[0108] Step S32, determining the index value Z of the first row of the vehicle model identification in the preset table.

[0109] In this embodiment, only the first row of the vehicle model identification stored first is the first row index value Z, wherein the first row index value Z of the first vehicle model identification is determined, and the first row index values ​​Z of other vehicle model identifications are uncertain. The first row index value Z needs to be determined according to the length of the list of other vehicle models.

[0110] As shown in Table 3 below, the first vehicle model identification is vehicle model A, the first row index value Z of vehicle model identification A is 2, and the first row index value Z of vehicle model identification B needs to be determined according to the parameter length of vehicle model identification A, that is, after calculating the list length of vehicle model identification A, the first row index value Z of vehicle model identification B is 4. The first row index value Z of vehicle model identification C is 6, and the first row index value Z of vehicle model identification D is 7. In Table 3, FA_MIN is the minimum value of the front wheel range parameter, FA_MAX is the maximum value of the front wheel range parameter, RA_MIN is the minimum value of the rear wheel range parameter, and RA_MAX is the maximum value of the rear wheel range parameter.

[0111] 1 Model logo FA_MIN FA_MAX RA_MIN RA_MAX 2 A 3 A 4 B 5 B 6 C 7 D

[0112] Table 3

[0113] Step S33, using the minimum value of the front wheel range parameter to add the front wheel difference parameter in sequence until the sum is greater than the front wheel value to be matched, to obtain the front wheel coefficient M.

[0114] In this embodiment, by extracting the front wheel range parameter and the front wheel difference parameter from the target database, the minimum value of the front wheel range parameter is added to the front wheel difference in the front wheel difference parameter in sequence, and when the sum is greater than the front wheel value to be matched, the front wheel coefficient M is obtained.

[0115] For example, the front wheel value to be matched is 6, the rear wheel value to be matched is 11, the front wheel range parameters include: [1, 5), [5, 7), [9, 15), and the front wheel difference parameter is [4, 2, 6]. Calculate the front wheel coefficient M: the minimum value in the front wheel range parameter is 1, 1+4=5<6; 1+4+2=7>6; the front wheel coefficient M is the cumulative number of times minus 1, so the front wheel coefficient M=2-1=1.

[0116] Step S34, using the minimum value of the rear wheel range parameter to add the rear wheel difference parameter in sequence until the sum is greater than the rear wheel value to be matched, to obtain a rear wheel coefficient N;

[0117] In this embodiment, the rear wheel range parameter and the rear wheel difference parameter are extracted from the target database, and the minimum value of the rear wheel range parameter is added to the rear wheel difference in the rear wheel difference parameter in sequence. When the sum is greater than the rear wheel value to be matched, the rear wheel coefficient N is obtained.

[0118] For example, the front wheel value to be matched is 6, the rear wheel value to be matched is 11, the rear wheel range parameters include: [7, 9), [9, 12), and the rear wheel difference parameter is [2, 3]. Calculate the rear wheel coefficient N: the minimum value of the rear wheel sample parameters is 7, 7+2=9<11; 7+2+3=12>11; the rear wheel coefficient N is the cumulative number of times minus 1, so the rear wheel parameter N=2-1=1.

[0119] Step S35, determining a target row S according to the number X of the front wheel range parameters, the number Y of the rear wheel range parameters, the first row index value Z, the front wheel coefficient M and the rear wheel coefficient N;

[0120] In this embodiment, taking Table 1 as an example, through the number X of front wheel range parameters, the number Y of rear wheel range parameters, the first row index value Z, the front wheel coefficient M and the rear wheel coefficient N, the target row S of the kingpin inclination parameter corresponding to the front wheel value and the rear wheel value to be matched can be accurately matched, and the calculation formula is X*N+Z+M.

[0121] For example, the front wheel value to be matched is 6, and the rear wheel value to be matched is 11; the front wheel range parameters include: [1, 5), [5, 7), [9, 15), and the front wheel difference parameter is [4, 2, 6]; the rear wheel range parameters include: [7, 9), [9, 12), and the rear wheel difference parameter is [2, 3]; among them, the number of front wheel range parameters X = 3, the number of rear wheel range parameters Y = 2, the first row index value Z = 2, the front wheel coefficient M = 1, and the rear wheel coefficient N = 1, and the target row S = 6. That is, the kingpin castor corresponding to the front wheel value to be matched and the rear wheel value to be matched is in the 6th row of Table 1.

[0122] Step S36, determining the corresponding kingpin caster parameter based on the front wheel range parameter and the rear wheel range parameter corresponding to the target row S.

[0123] In this embodiment, the caster parameters corresponding to the front wheel value to be matched and the rear wheel value to be matched are determined according to the target row S and the corresponding front wheel range parameters and rear wheel range parameters.

[0124] The calculation method according to this embodiment shows that the matching speed of the kingpin caster parameters is improved.

[0125] Furthermore, based on the first, second and third embodiments of the kingpin caster parameter matching method for a four-wheel aligner of the present invention, a fourth embodiment of the kingpin caster parameter matching method for a four-wheel aligner of the present invention is proposed.

[0126] The fourth embodiment of the method for matching castor parameters of a four-wheel aligner is different from the first, second and third embodiments of the method for matching castor parameters of a four-wheel aligner in that the fourth embodiment is a refinement of step S35, in which the target row S is determined according to the number X of the front wheel range parameters, the number Y of the rear wheel range parameters, the first row index value Z, the front wheel coefficient M and the rear wheel coefficient N, with reference to Figure 5 , the step specifically includes:

[0127] Step B10, determining the target row S according to the number X of the front wheel range parameters, the rear wheel coefficient N, the first row index value Z and the front wheel coefficient M.

[0128] In this embodiment, when the front wheel range parameters and the rear wheel range parameters are arranged and combined in ascending order of the rear wheel range parameters, the target row S is determined by the number X of the front wheel range parameters, the rear wheel coefficient N, the first row index value Z and the front wheel coefficient M; thereby improving the matching efficiency of the kingpin castor parameters.

[0129] The following is a detailed description of each step:

[0130] Step B10, determining the target row S according to the number X of the front wheel range parameters, the rear wheel coefficient N, the first row index value Z and the front wheel coefficient M.

[0131] In this embodiment, when the rear wheel range parameters are arranged and combined in ascending order, the calculation formula of the target row S is: S=X*N+Z+M, that is, the target row S is determined by the number X of the front wheel range parameters, the rear wheel coefficient N, the first row index value Z and the front wheel coefficient M.

[0132] In this embodiment, when the rear wheel range parameters are arranged and combined in ascending order, the target row S is determined by the number X of front wheel range parameters, the rear wheel coefficient N, the first row index value Z and the front wheel coefficient M; thereby improving the matching efficiency of the kingpin castor parameters.

[0133] Furthermore, based on the first, second, third and fourth embodiments of the kingpin caster parameter matching method for a four-wheel aligner of the present invention, a fifth embodiment of the kingpin caster parameter matching method for a four-wheel aligner of the present invention is proposed.

[0134] The fifth embodiment of the method for matching castor parameters of a four-wheel aligner is different from the first, second, third and fourth embodiments of the method for matching castor parameters of a four-wheel aligner in that the present embodiment is a refinement of step S35, in which the target row S is determined according to the number X of the front wheel range parameters, the number Y of the rear wheel range parameters, the first row index value Z, the front wheel coefficient M and the rear wheel coefficient N, with reference to Figure 6 , the step specifically includes:

[0135] Step C10, determining the target row S according to the number Y of the rear wheel range parameters, the front wheel coefficient M, the first row index value Z and the rear wheel coefficient N.

[0136] In this embodiment, when the front wheel range parameters and the rear wheel range parameters are arranged and combined in ascending order of the front wheel range parameters, the target row S is determined by the number Y of rear wheel range parameters, the front wheel coefficient M, the first row index value Z and the rear wheel coefficient N; thereby improving the matching efficiency of the kingpin caster parameters.

[0137] The following is a detailed description of each step:

[0138] Step C10, determining the target row S according to the number Y of the rear wheel range parameters, the front wheel coefficient M, the first row index value Z and the rear wheel coefficient N.

[0139] In this embodiment, when the front wheel range parameters are arranged and combined in ascending order, the calculation formula of the target row S is: S=Y*M+Z+N, that is, the target row S is determined by the number Y of rear wheel range parameters, the front wheel coefficient M, the first row index value Z and the rear wheel coefficient N.

[0140] In this embodiment, when the front wheel range parameters are arranged and combined in ascending order, the target row S is determined by the number Y of rear wheel range parameters, the front wheel coefficient M, the first row index value Z and the rear wheel coefficient N; thereby improving the matching efficiency of the kingpin caster parameters.

[0141] Furthermore, based on the first, second, third, fourth and fifth embodiments of the kingpin caster parameter matching method for a four-wheel aligner of the present invention, a sixth embodiment of the kingpin caster parameter matching method for a four-wheel aligner of the present invention is proposed.

[0142] The sixth embodiment of the method for matching castor parameters of a four-wheel aligner is different from the first, second, third, fourth and fifth embodiments of the method for matching castor parameters of a four-wheel aligner in that the sixth embodiment is a step of obtaining the vehicle type identification, the front wheel value to be matched and the rear wheel value to be matched input by the user in step S10, and referring to Figure 7 The castor parameter matching method of the four-wheel aligner also includes:

[0143] Step D10, determining the number X of front wheel range parameters corresponding to each vehicle type identification, and the number Y of rear wheel range parameters corresponding to each vehicle type identification, and storing them in the target database.

[0144] In this embodiment, before performing castor parameter matching of the four-wheel aligner, the number of front wheel range parameters corresponding to each vehicle type identification and the number of corresponding rear wheel range parameters are determined and stored in the target database; thereby improving the response speed of the four-wheel aligner operation.

[0145] The following is a detailed description of each step:

[0146] Step D10, determining the number X of front wheel range parameters corresponding to each vehicle type identification, and the number Y of rear wheel range parameters corresponding to each vehicle type identification, and storing them in the target database.

[0147] In this embodiment, before performing castor parameter matching of the four-wheel aligner, the number X of front wheel range parameters and the number Y of rear wheel range parameters corresponding to each vehicle type identification input by the user are determined, and the number X of front wheel range parameters and the number Y of rear wheel range parameters corresponding to each vehicle type identification are stored in the target database.

[0148] In this embodiment, before performing castor parameter matching of the four-wheel aligner, the number of front wheel range parameters corresponding to each vehicle type identification and the number of corresponding rear wheel range parameters are determined and stored in the target database; thereby improving the response speed of the four-wheel aligner operation.

[0149] Furthermore, based on the first, second, third, fourth, fifth and sixth embodiments of the kingpin caster parameter matching method for a four-wheel aligner of the present invention, a seventh embodiment of the kingpin caster parameter matching method for a four-wheel aligner of the present invention is proposed.

[0150] The seventh embodiment of the method for matching castor parameters of a four-wheel aligner is different from the first, second, third, fourth, fifth and sixth embodiments of the method for matching castor parameters of a four-wheel aligner in that the seventh embodiment is before the step S10 of obtaining the vehicle type identification, the front wheel value to be matched and the rear wheel value to be matched input by the user, Figure 8 The castor parameter matching method of the four-wheel aligner also includes:

[0151] Step E10: for each vehicle type identification, each combination of the front wheel range parameter and the rear wheel range parameter is bound and stored with its corresponding castor parameter.

[0152] In this embodiment, before the kingpin castor parameter matching of the four-wheel aligner is performed, for each vehicle type identification, each combination of the front wheel range parameter and the rear wheel range parameter is bound and stored with its corresponding kingpin castor parameter; thereby improving the matching efficiency of the kingpin castor parameter.

[0153] The following is a detailed description of each step:

[0154] Step E10: for each vehicle type identification, each combination of the front wheel range parameter and the rear wheel range parameter is bound and stored with its corresponding castor parameter.

[0155] In this embodiment, before the castor parameter matching of the four-wheel aligner is performed, for each vehicle type identification, each combination of the front wheel range parameter and the rear wheel range parameter is bound and stored with its corresponding castor parameter.

[0156] The kingpin caster parameter is a combination of the front wheel range parameter and the rear wheel range parameter; if there are x front wheel range parameters and y rear wheel range parameters, then the combination is x*y rows of data, that is, there are x*y kingpin caster parameters. Among them, the number of corresponding kingpin caster parameters can be determined according to the number of front wheel range parameters and the number of rear wheel range parameters, but the front wheel range parameters and the rear wheel range parameters cannot determine the value of the kingpin caster.

[0157] For example, when the front wheel range parameters include: [1, 5), [5, 7), [9, 15); and the rear wheel range parameters include: [7, 9), [9, 12); the kingpin castor parameters corresponding to the front wheel range parameters and the rear wheel range parameters are shown in Table 4.

[0158] Among them, FA_MIN is the minimum value of the front wheel range parameter, FA_MAX is the maximum value of the front wheel range parameter, RA_MIN is the minimum value of the rear wheel range parameter, RA_MAX is the maximum value of the rear wheel range parameter, kingpin castor_MIN is the minimum value of the kingpin castor parameter, and kingpin castor_MAX is the maximum value of the kingpin castor parameter.

[0159]

[0160] Table 4

[0161] In this embodiment, before the kingpin castor parameter matching of the four-wheel aligner is performed, for each vehicle type identification, each combination of the front wheel range parameter and the rear wheel range parameter is bound and stored with its corresponding kingpin castor parameter; thereby improving the matching efficiency of the kingpin castor parameter.

[0162] In some embodiments, the front wheel range parameter and the rear wheel range parameter may also be arranged and combined in descending order of the front wheel range parameter / rear wheel range parameter, and the corresponding calculation formulas are adjusted, but the corresponding kingpin inclination parameters are determined based on the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter, the rear wheel difference parameter and the front wheel value to be matched and the rear wheel value to be matched.

[0163] The present invention also provides a kingpin caster parameter matching device for a four-wheel aligner. Fig. 9 The kingpin caster parameter matching device of the four-wheel aligner of the present invention comprises:

[0164] The acquisition module 10 is used to acquire the vehicle type identification, the front wheel value to be matched, and the rear wheel value to be matched input by the user;

[0165] An extraction module 20, for extracting, based on the vehicle type identification, a front wheel range parameter, a rear wheel range parameter, a front wheel difference parameter, and a rear wheel difference parameter corresponding to the vehicle type identification from a target database;

[0166] The determination module 30 is used to determine the corresponding kingpin caster parameter based on the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter, the rear wheel difference parameter and the front wheel value to be matched and the rear wheel value to be matched.

[0167] Optionally, the castor parameter matching device of the four-wheel aligner further comprises:

[0168] An identification module 40 is used to obtain a corresponding front wheel range parameter and a rear wheel range parameter for each vehicle type identification; each of the front wheel range parameter and the rear wheel range parameter is at least one;

[0169] The storage module 50 is used to store the front wheel range parameter and the rear wheel range parameter corresponding to each vehicle type identification in a preset table in the target database after arranging and combining them according to a preset rule, wherein each combination of the front wheel range parameter and the rear wheel range parameter occupies one row; and the corresponding vehicle type identification is stored in the row where each combination of the front wheel range parameter and the rear wheel range parameter is located;

[0170] The preset module 60 is used to calculate the range difference of each front wheel range parameter for each vehicle type identification to form the corresponding front wheel difference parameter, and to calculate the range difference of each rear wheel range parameter to form the corresponding rear wheel difference parameter; and store the front wheel difference parameter and the rear wheel difference parameter in the target database according to a preset order.

[0171] Optionally, the determining module 30 further includes:

[0172] The identification unit 10 is used to determine the number X of corresponding front wheel range parameters and the number Y of corresponding rear wheel range parameters in the target database according to the vehicle type identification input by the user;

[0173] An index unit 20 determines the index value Z of the first row of the vehicle model identification in a preset table;

[0174] A front wheel difference unit 30 is used to sequentially add the front wheel difference parameter using the minimum value of the front wheel range parameter until the sum is greater than the front wheel value to be matched, thereby obtaining a front wheel coefficient M;

[0175] A rear wheel difference unit 40 is used to sequentially add the rear wheel difference parameter to the minimum value of the rear wheel range parameter until the sum is greater than the rear wheel value to be matched, so as to obtain a rear wheel coefficient N;

[0176] A target unit 50, configured to determine a target row S according to the number X of the front wheel range parameters, the number Y of the rear wheel range parameters, the first row index value Z, the front wheel coefficient M and the rear wheel coefficient N;

[0177] The parameter unit 60 is used to determine the corresponding kingpin caster parameter based on the front wheel range parameter and the rear wheel range parameter corresponding to the target row S.

[0178] Optionally, the determining module 30 further includes:

[0179] The rear wheel coefficient unit 70 is used to determine the target row S according to the number X of the front wheel range parameters, the rear wheel coefficient N, the first row index value Z and the front wheel coefficient M.

[0180] Optionally, the determining module 30 further includes:

[0181] The front wheel coefficient unit 80 is used to determine the target row S according to the number Y of the rear wheel range parameters, the front wheel coefficient M, the first row index value Z and the rear wheel coefficient N.

[0182] Optionally, the castor parameter matching device of the four-wheel aligner further comprises:

[0183] The target module 70 is used to determine the number X of front wheel range parameters corresponding to each vehicle type identification, and the number Y of rear wheel range parameters corresponding to each vehicle type identification, and store them in the target database.

[0184] Optionally, the castor parameter matching device of the four-wheel aligner further comprises:

[0185] The binding module 80 is used for binding and storing each combination of the front wheel range parameter and the rear wheel range parameter with the corresponding kingpin caster parameter for each vehicle type identification.

[0186] In addition, the present invention also provides a medium, which is a computer-readable storage medium, on which a kingpin castor parameter matching program of a four-wheel aligner is stored. When the kingpin castor parameter matching program of the four-wheel aligner is executed by a processor, the steps of the kingpin castor parameter matching method of the four-wheel aligner as described above are implemented.

[0187] The method implemented when the castor parameter matching program of the four-wheel aligner running on the processor is executed can refer to the various embodiments of the castor parameter matching method of the four-wheel aligner of the present invention, which will not be described in detail here.

[0188] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0189] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0190] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present invention.

[0191] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for matching castor parameters of a four-wheel aligner, characterized in that: The method comprises: Obtain the vehicle type identification, the front wheel value to be matched, and the rear wheel value to be matched input by the user; Based on the vehicle type identification, extracting the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter and the rear wheel difference parameter corresponding to the vehicle type identification from the target database; Determine a corresponding castor parameter based on the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter, the rear wheel difference parameter, the front wheel value to be matched, and the rear wheel value to be matched; Wherein, the step of determining the corresponding kingpin caster parameter based on the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter, the rear wheel difference parameter and the front wheel value to be matched and the rear wheel value to be matched comprises: According to the vehicle type identification input by the user, the number X of corresponding front wheel range parameters and the number Y of corresponding rear wheel range parameters are determined in the target database; Determine the index value Z of the first row of the vehicle model identification in the preset table; The front wheel coefficient M is obtained by sequentially adding the front wheel difference parameter to the minimum value of the front wheel range parameter until the sum is greater than the front wheel value to be matched; The rear wheel coefficient N is obtained by sequentially adding the rear wheel difference parameter to the minimum value of the rear wheel range parameter until the sum is greater than the rear wheel value to be matched; Determine a target row S according to the number X of front wheel range parameters, the number Y of rear wheel range parameters, the first row index value Z, the front wheel coefficient M and the rear wheel coefficient N; Determine the corresponding castor parameter based on the front wheel range parameter and the rear wheel range parameter corresponding to the target row S; The preset rule is an ascending order of the rear wheel range parameters; the step of determining the target row S according to the number X of the front wheel range parameters, the number Y of the rear wheel range parameters, the first row index value Z, the front wheel coefficient M and the rear wheel coefficient N comprises: Determine a target row S according to the number X of the front wheel range parameters, the rear wheel coefficient N, the first row index value Z and the front wheel coefficient M, and the calculation formula of the target row S is: S=X*N+Z+M; The preset rule is an ascending order of the front wheel range parameters, and the step of determining the target row S according to the number X of the front wheel range parameters, the number Y of the rear wheel range parameters, the first row index value Z, the front wheel coefficient M and the rear wheel coefficient N comprises: The target row S is determined according to the number Y of the rear wheel range parameters, the front wheel coefficient M, the first row index value Z and the rear wheel coefficient N. The calculation formula of the target row S is: S= Y*M + Z + N.

2. The castor parameter matching method of the four-wheel aligner according to claim 1, characterized in that: Before the step of obtaining the vehicle type identification, the front wheel value to be matched, and the rear wheel value to be matched input by the user, the method further includes: For each vehicle type identification, obtaining a corresponding front wheel range parameter and a rear wheel range parameter; each of the front wheel range parameter and the rear wheel range parameter is at least one; Arrange and combine the front wheel range parameter and the rear wheel range parameter corresponding to each vehicle type identification according to a preset rule and store them in a preset table in the target database, wherein each combination of the front wheel range parameter and the rear wheel range parameter occupies one row; and store the corresponding vehicle type identification in the row where each combination of the front wheel range parameter and the rear wheel range parameter is located; For each vehicle type identification, a range difference of each front wheel range parameter is calculated to form a corresponding front wheel difference parameter, and a range difference of each rear wheel range parameter is calculated to form a corresponding rear wheel difference parameter; and the front wheel difference parameters and the rear wheel difference parameters are stored in the target database in a preset order.

3. The castor parameter matching method of the four-wheel aligner according to claim 1, characterized in that: Before the step of obtaining the vehicle type identification, the front wheel value to be matched, and the rear wheel value to be matched input by the user, the method further includes: The number X of front wheel range parameters corresponding to each vehicle type identification and the number Y of rear wheel range parameters corresponding to each vehicle type identification are determined and stored in the target database.

4. The castor parameter matching method of the four-wheel aligner according to claim 1, characterized in that: Before the step of obtaining the vehicle type identification, the front wheel value to be matched, and the rear wheel value to be matched input by the user, the method further includes: For each vehicle model identification, each combination of the front wheel range parameter and the rear wheel range parameter is bound and stored with its corresponding kingpin caster parameter.

5. A kingpin caster parameter matching device for a four-wheel aligner, characterized in that: The kingpin caster parameter matching device of the four-wheel aligner comprises: An acquisition module, used to acquire an input vehicle model identification, a front wheel value to be matched, and a rear wheel value to be matched; an extraction module, for extracting, based on the vehicle type identification, a front wheel range parameter, a rear wheel range parameter, a front wheel difference parameter and a rear wheel difference parameter corresponding to the vehicle type identification from a target database; A determination module, configured to determine a corresponding castor parameter based on the front wheel range parameter, the rear wheel range parameter, the front wheel difference parameter, the rear wheel difference parameter, the front wheel value to be matched, and the rear wheel value to be matched; Wherein, the determining module is also used for: According to the vehicle type identification input by the user, the number X of corresponding front wheel range parameters and the number Y of corresponding rear wheel range parameters are determined in the target database; Determine the index value Z of the first row of the vehicle model identification in the preset table; The front wheel coefficient M is obtained by sequentially adding the front wheel difference parameter to the minimum value of the front wheel range parameter until the sum is greater than the front wheel value to be matched; The rear wheel coefficient N is obtained by sequentially adding the rear wheel difference parameter to the minimum value of the rear wheel range parameter until the sum is greater than the rear wheel value to be matched; Determine a target row S according to the number X of front wheel range parameters, the number Y of rear wheel range parameters, the first row index value Z, the front wheel coefficient M and the rear wheel coefficient N; Determine the corresponding castor parameter based on the front wheel range parameter and the rear wheel range parameter corresponding to the target row S; The preset rule is that the rear wheel range parameters are arranged in ascending order, and the determination module is further used for: Determine a target row S according to the number X of the front wheel range parameters, the rear wheel coefficient N, the first row index value Z and the front wheel coefficient M, and the calculation formula of the target row S is: S=X*N+Z+M; Wherein, the preset rule is the method of ascending order of the front wheel range parameter, and the determination module is further used for: The target row S is determined according to the number Y of the rear wheel range parameters, the front wheel coefficient M, the first row index value Z and the rear wheel coefficient N. The calculation formula of the target row S is: S= Y*M + Z + N.

6. A device, the device being a four-wheel aligner, characterized in that: The four-wheel aligner comprises: a memory, a processor, and a caster parameter matching program for the four-wheel aligner stored in the memory and executable on the processor. When the caster parameter matching program for the four-wheel aligner is executed by the processor, the steps of the caster parameter matching method for the four-wheel aligner as claimed in any one of claims 1 to 4 are implemented.

7. A medium, the medium being a computer-readable storage medium, characterized in that: The computer-readable storage medium stores a castor parameter matching program for a four-wheel aligner, and when the castor parameter matching program for a four-wheel aligner is executed by a processor, the steps of the castor parameter matching method for a four-wheel aligner according to any one of claims 1 to 4 are implemented.

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