CN111553050B - Structure checking method and device for automobile steering system and storage medium - Google Patents
Structure checking method and device for automobile steering system and storage medium Download PDFInfo
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- CN111553050B CN111553050B CN202010234900.8A CN202010234900A CN111553050B CN 111553050 B CN111553050 B CN 111553050B CN 202010234900 A CN202010234900 A CN 202010234900A CN 111553050 B CN111553050 B CN 111553050B
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Abstract
The application discloses a structure checking method and device of an automobile steering system and a storage medium, and belongs to the technical field of vehicle engineering. The method comprises the following steps: according to the acquired model parameters of the reference automobile, processing a steering system of the reference automobile to obtain a steering structure model and structural parameters of the steering structure model, wherein the steering structure model is used for simulating the steering system of a target automobile, and the target automobile is an automobile in a design stage; determining steering torque fluctuation of the steering structure model according to the structure parameters of the steering structure model; and checking the steering system of the target automobile and the positions of parts adjacent to the steering system of the target automobile according to the steering torque fluctuation and the structural parameters of the steering structural model and the design parameters of the steering system of the target automobile so as to finish the structural check of the steering system of the automobile. The problem that this application has improved the design extravagant and spare part position can't be adjusted has guaranteed the performance of car.
Description
Technical Field
The present disclosure relates to the field of vehicle engineering technologies, and in particular, to a method and an apparatus for checking a structure of an automobile steering system, and a storage medium.
Background
With the development of technology, automobiles are becoming necessary vehicles for people to travel. Among them, driving comfort and stability of an automobile are one of important indexes of people purchasing the automobile, and torque fluctuation of a steering system directly affects driving feeling, so in order to ensure driving comfort and stability, it is generally necessary to determine steering torque fluctuation and ensure that the steering torque fluctuation and gaps between various components of the steering system are in a proper range.
At present, steering torque fluctuation can be determined after the automobile leaves the factory, and then when the torque fluctuation is out of a proper range, parts of the automobile are adjusted.
However, when the automobile is designed in the earlier stage, gaps between reserved parts may be too large or too small, so that design waste or a problem that adjustment cannot be performed exists, and thus cost waste or automobile performance defects are caused.
Disclosure of Invention
The application provides a structure checking method, device and storage medium of an automobile steering system, which can solve the problems of waste of an automobile book and automobile performance deficiency caused by checking in the related technology. The technical scheme is as follows:
In one aspect, a method for checking a structure of an automotive steering system is provided, the method comprising:
according to the acquired model parameters of the reference automobile, processing a steering system of the reference automobile to obtain a steering structure model and structural parameters of the steering structure model, wherein the reference automobile is any automobile which is put into use, the steering structure model is used for simulating the steering system of a target automobile, and the target automobile is an automobile in a design stage;
determining steering torque fluctuation of the steering structure model according to the structure parameters of the steering structure model;
and checking the steering system of the target automobile and the positions of parts adjacent to the steering system of the target automobile according to the steering torque fluctuation and the structural parameters of the steering structural model and the design parameters of the steering system of the target automobile so as to finish the structural check of the steering system of the automobile.
In some embodiments, the processing the steering system of the reference automobile according to the acquired model parameters of the reference automobile to obtain a steering structure model and the structural parameters of the steering structure model includes:
acquiring model parameters of the reference automobile;
Simulating the steering system of the reference automobile according to the automobile model parameters and the simulation proportion to obtain a reference steering model;
and adjusting the structural parameters of the reference steering model to obtain the steering structural model and the structural parameters of the steering structural model.
In some embodiments, the determining the steering torque ripple of the steering structure model according to the structural parameters of the steering structure model includes:
determining a first included angle between a steering shaft axis and a steering transmission shaft axis, a second included angle between the steering transmission shaft axis and a steering gear input shaft axis and a third included angle between a plane where the steering shaft axis and the steering transmission shaft axis are located and a plane where the steering transmission shaft axis and the steering gear input shaft axis are located in the steering structure model according to structural parameters of the steering structure model;
setting the phase angles of the forks at the two ends of the steering transmission shaft in the steering structure model;
and determining the steering torque fluctuation of the steering structure model through a torque fluctuation calculation formula according to the first included angle, the second included angle, the third included angle and the knuckle phase angle.
In some embodiments, the checking the position of the steering system of the target automobile and the parts adjacent to the steering system of the target automobile according to the steering torque fluctuation of the steering structure model, the structural parameter and the design parameter of the steering system of the target automobile includes:
when the steering torque fluctuation is out of a preset fluctuation range, returning to the operation of processing the steering system of the reference automobile according to the acquired model parameters of the reference automobile until the steering torque fluctuation is in the preset fluctuation range;
when the steering torque fluctuation is within a preset fluctuation range, determining boundary positions among all parts in a steering system of the target automobile and position gaps among parts adjacent to the steering system of the target automobile according to the structural parameters of the steering structural model and the design parameters of the steering system of the target automobile;
and returning to processing the steering system of the reference automobile according to the acquired model parameters of the reference automobile when the boundary positions among all the components in the steering system of the target automobile or the position gaps among the adjacent components of the steering system of the target automobile are not in accordance with the design requirements, until the boundary positions among all the components in the steering system of the target automobile and the position gaps among the adjacent components of the steering system of the target automobile are in accordance with the design requirements, and determining the positions of the steering system of the target automobile and the adjacent components of the steering system of the target automobile.
In some embodiments, after checking the position of the steering system of the target automobile and the parts adjacent to the steering system of the target automobile according to the steering torque fluctuation, the structural parameter of the steering structural model and the design parameter of the steering system of the target automobile, the method further comprises:
and displaying a check report of the steering system of the target automobile and the positions of parts adjacent to the steering system of the target automobile.
In another aspect, there is provided a structure checking apparatus of an automobile steering system, the apparatus comprising:
the processing module is used for processing a steering system of the reference automobile according to the acquired model parameters of the reference automobile to obtain a steering structure model and structural parameters of the steering structure model, wherein the reference automobile is any automobile which is put into use, the steering structure model is used for simulating the steering system of a target automobile, and the target automobile is an automobile in a design stage;
the determining module is used for determining steering torque fluctuation of the steering structure model according to the structure parameters of the steering structure model;
and the checking module is used for checking the steering system of the target automobile and the positions of parts adjacent to the steering system of the target automobile according to the steering moment fluctuation and the structural parameters of the steering structural model and the design parameters of the steering system of the target automobile so as to finish the structural check of the steering system of the automobile.
In some embodiments, the processing module comprises:
the acquisition sub-module is used for acquiring the model parameters of the reference automobile;
the simulation sub-module is used for simulating the steering system of the reference automobile according to the vehicle type parameters and the simulation proportion to obtain a reference steering model;
and the adjustment sub-module is used for adjusting the structural parameters of the reference steering model to obtain the steering structural model and the structural parameters of the steering structural model.
In some embodiments, the determining module comprises:
the first determining submodule is used for determining a first included angle between a steering shaft axis and a steering transmission shaft axis, a second included angle between the steering transmission shaft axis and a steering device input shaft axis and a third included angle between a plane where the steering shaft axis and the steering transmission shaft axis are located and a plane where the steering transmission shaft axis and the steering device input shaft axis are located in the steering structure model according to the structural parameters of the steering structure model;
the setting submodule is used for setting the phase angles of the forks at the two ends of the steering transmission shaft in the steering structure model;
and the second determining submodule is used for determining the steering torque fluctuation of the steering structural model according to the first included angle, the second included angle, the third included angle and the knuckle phase angle through a torque fluctuation calculation formula.
In some embodiments, the verification module includes:
the first triggering sub-module is used for triggering the processing module to process the steering system of the reference automobile according to the acquired model parameters of the reference automobile when the steering torque fluctuation is out of a preset fluctuation range until the steering torque fluctuation is within the preset fluctuation range;
a third determining sub-module, configured to determine, when the steering torque fluctuation is within a preset fluctuation range, a boundary position between each component in the steering system of the target automobile and a position gap between components adjacent to the steering system of the target automobile according to a structural parameter of the steering structural model and a design parameter of the steering system of the target automobile;
and the second triggering sub-module is used for triggering the processing module to process the steering system of the reference automobile according to the acquired model parameters of the reference automobile when the boundary positions among all the components in the steering system of the target automobile or the position gaps among the adjacent components of the steering system of the target automobile are not in accordance with the design requirements, until the boundary positions among all the components in the steering system of the target automobile and the position gaps among the adjacent components of the steering system of the target automobile are in accordance with the design requirements, and determining the positions of the steering system of the target automobile and the adjacent components of the steering system of the target automobile.
In some embodiments, the apparatus further comprises:
and the display module is used for displaying the steering system of the target automobile and a check report of the positions of parts adjacent to the steering system of the target automobile.
In another aspect, a terminal is provided, where the terminal includes a memory and a processor, where the memory is configured to store a computer program, and the processor is configured to execute the computer program stored on the memory, so as to implement the steps of the method for checking the structure of the steering system of the automobile.
In another aspect, a computer readable storage medium is provided, in which a computer program is stored, which when executed by a processor, implements the steps of the method for checking the structure of an automotive steering system described above.
In another aspect, a computer program product is provided comprising instructions that, when executed on a computer, cause the computer to perform the steps of the method for checking the structure of a steering system of a motor vehicle described above.
The technical scheme that this application provided can bring following beneficial effect at least:
in the embodiment of the application, the steering structure model of the steering system of the target automobile can be determined through the model parameters of the outgoing reference automobile, and the structure check of the steering system can be carried out according to the structure parameters of the steering structure model, so that the problems of design waste and incapability of adjusting the positions of parts are solved, the adjustment cost is reduced, and the performance of the automobile is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a method for checking a structure of an automobile steering system according to an embodiment of the present application;
FIG. 2 is a flow chart of another method for checking the structure of an automotive steering system according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a reference steering model provided in an embodiment of the present application;
FIG. 4 is a schematic diagram of a parameter adjustment interface according to an embodiment of the present disclosure;
FIG. 5 is a schematic view of a steering structure according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a structural checking device of an automobile steering system according to an embodiment of the present application;
FIG. 7 is a schematic diagram of a processing module according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of a determining module according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of a checking module according to an embodiment of the present application;
Fig. 10 is a schematic structural diagram of a structural checking device of an automobile steering system according to an embodiment of the present application;
fig. 11 is a schematic structural diagram of a terminal according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Before explaining the structure checking method of the automobile steering system provided by the embodiment of the application in detail, an application scenario provided by the embodiment of the application is described.
The automobile steering system comprises a steering wheel, a steering column, a middle transmission shaft, a cross universal joint, a steering machine input shaft, a steering machine, a steering pull rod and other parts. In consideration of the factors of the whole automobile assembly, the collision safety and the like, the steering column, the middle transmission shaft and the steering machine input shaft are respectively driven by adopting a non-constant-speed cross universal joint. Torque ripple problems can occur due to the presence of the non-constant velocity joints. Torque fluctuations in the steering system have a direct influence on the driving comfort feel, so that the driving comfort for the end user is reduced.
At present, because the gap between reserved parts may be too large or too small when the automobile is designed in the earlier stage, the design waste or the problem that the automobile cannot be adjusted exists, and thus the problem of cost waste or automobile performance defect is caused.
Based on such application scenes, the embodiment of the application provides a structure checking method of an automobile steering system, which can adjust steering torque fluctuation and part positions before an automobile leaves a factory.
Next, a method for checking the structure of the steering system of the automobile according to the embodiment of the present application will be explained in detail with reference to the accompanying drawings.
Fig. 1 is a flowchart of a method for checking a structure of an automobile steering system according to an embodiment of the present application, where the method is applied to a terminal. Referring to fig. 1, the method includes the following steps.
Step 101: according to the acquired model parameters of the reference automobile, the steering system of the reference automobile is processed to obtain a steering structure model and structural parameters of the steering structure model, wherein the steering structure model is used for simulating the steering system of a target automobile, and the target automobile is an automobile in a design stage.
Step 102: and determining the steering torque fluctuation of the steering structure model according to the structural parameters of the steering structure model.
Step 103: and checking the steering system of the target automobile and the positions of parts adjacent to the steering system of the target automobile according to the steering torque fluctuation and the structural parameters of the steering structural model and the design parameters of the steering system of the target automobile so as to finish the structural check of the steering system of the automobile.
In the embodiment of the application, the steering structure model of the steering system of the target automobile can be determined through the model parameters of the outgoing reference automobile, and the structure check of the steering system can be carried out according to the structure parameters of the steering structure model, so that the problems of design waste and incapability of adjusting the positions of parts are solved, the adjustment cost is reduced, and the performance of the automobile is ensured.
In some embodiments, according to the obtained model parameters of the reference automobile, processing the steering system of the reference automobile to obtain a steering structure model and the structural parameters of the steering structure model, including:
acquiring model parameters of the reference automobile;
simulating a steering system of the reference automobile according to the automobile model parameters and the simulation proportion to obtain a reference steering model;
and adjusting the structural parameters of the reference steering model to obtain the steering structural model and the structural parameters of the steering structural model.
In some embodiments, determining steering torque fluctuations of the steering structural model from structural parameters of the steering structural model includes:
according to the structural parameters of the steering structural model, determining a first included angle between a steering shaft axis and a steering transmission shaft axis, a second included angle between the steering transmission shaft axis and a steering gear input shaft axis and a third included angle between a plane where the steering shaft axis and the steering transmission shaft axis are located and a plane where the steering transmission shaft axis and the steering gear input shaft axis are located in the steering structural model;
Setting the phase angles of the two ends of the steering transmission shaft in the steering structure model;
and determining the steering torque fluctuation of the steering structure model through a torque fluctuation calculation formula according to the first included angle, the second included angle, the third included angle and the knuckle phase angle.
In some embodiments, verifying the position of the steering system of the target vehicle and components adjacent to the steering system of the target vehicle based on the steering torque fluctuations of the steering structural model, the structural parameters, and the design parameters of the steering system of the target vehicle includes:
when the steering torque fluctuation is out of the preset fluctuation range, returning to the operation of processing the steering system of the reference automobile according to the acquired model parameters of the reference automobile until the steering torque fluctuation is in the preset fluctuation range;
when the steering torque fluctuation is within a preset fluctuation range, determining boundary positions among all parts in the steering system of the target automobile and position gaps among parts adjacent to the steering system of the target automobile according to the structural parameters of the steering structural model and the design parameters of the steering system of the target automobile;
And returning to processing the steering system of the reference automobile according to the acquired model parameters of the reference automobile when the boundary positions among all the components in the steering system of the target automobile or the position gaps among the adjacent components of the steering system of the target automobile are not in accordance with the design requirements, until the boundary positions among all the components in the steering system of the target automobile and the position gaps among the adjacent components of the steering system of the target automobile are in accordance with the design requirements, and determining the positions of the steering system of the target automobile and the adjacent components of the steering system of the target automobile.
In some embodiments, after checking the position of the steering system of the target automobile and the parts adjacent to the steering system of the target automobile according to the steering torque fluctuation of the steering structure model, the structural parameters and the design parameters of the steering system of the target automobile, the method further comprises:
and displaying a check report of the steering system of the target automobile and the positions of parts adjacent to the steering system of the target automobile.
All the above optional technical solutions may be combined according to any choice to form an optional embodiment of the present application, which is not described in detail herein.
Fig. 2 is a flowchart of a method for checking the structure of an automotive steering system according to an embodiment of the present application, and referring to fig. 2, the method includes the following steps.
Step 201: and the terminal processes the steering system of the reference automobile according to the acquired model parameters of the reference automobile to obtain a steering structure model and the structural parameters of the steering structure model.
It should be noted that, referring to any one of the automobiles that is put into use, the steering structure model is used to simulate the steering system of the target automobile, which is an automobile in the design stage.
Since the automobile is shipped, if the torque fluctuation of the automobile is problematic, it is likely that it is difficult to adjust the positions of the automobile parts, resulting in cost waste and automobile performance loss. Therefore, in order to solve the problems of waste of automobile cost and missing automobile performance, the terminal can process the steering system of the reference automobile according to the acquired model parameters of the reference automobile to obtain a steering structure model and the structural parameters of the steering structure model.
As an example, the terminal processes the steering system of the reference automobile according to the acquired model parameters of the reference automobile, and the operation of obtaining the steering structure model and the structural parameters of the steering structure model may be: acquiring model parameters of a reference automobile; simulating a steering system of a reference automobile according to the vehicle type parameters and the simulation proportion to obtain a reference steering model; and adjusting the structural parameters of the reference steering model to obtain the steering structural model and the structural parameters of the steering structural model.
The steering system generally includes a steering wheel, a steering shaft, a steering transmission shaft, a steering input shaft, a cross joint, a steering rod, and the like. The steering torque fluctuation can be determined through the steering shaft, the steering transmission shaft, the steering device input shaft and the cross universal joint, so that the steering shaft, the steering transmission shaft, the steering device input shaft and the cross universal joint in the steering system of the reference automobile can be simulated according to the vehicle type parameters and the simulation proportion to obtain the reference steering model.
For example, the terminal may simulate the steering system of the reference automobile according to the vehicle model parameters and the simulation proportion to obtain the reference steering model shown in fig. 3, where the AB section is a steering shaft, the BC section is a steering transmission shaft, the CD section is a steering input shaft, and two ends of the BC section are two cross universal joints.
It should be noted that the simulation ratio is wallpaper between the steering system of the reference automobile and the reference steering model, and the simulation ratio may be set in advance according to the requirement, for example, the simulation ratio may be 1:10.1:15, etc.
In some embodiments, after obtaining the reference steering model, the terminal needs to adjust structural parameters of the reference steering model, such as adjusting the column length, the input shaft length, the rotation degree, the translation degree, the column angle, and the like, in order to design a steering system of the target automobile that meets the requirements. And during adjustment, the size of the structural parameter can be directly determined, and the structural parameter can be increased or decreased on the basis of the original size of the structural parameter.
As an example, the terminal may actively and randomly adjust parameters of the reference steering model to obtain the steering structure model and the steering structure model parameters, or may adjust parameters of the reference steering model according to the adjustment parameters carried in the adjustment instruction when receiving the adjustment instruction to obtain the steering structure model and the steering structure model parameters.
It should be noted that, the adjustment instruction may be triggered by a user through a specific operation, and the specific operation may be a click operation, a sliding operation, a voice operation, or the like.
As an example, for each structural parameter of the reference steering model, the terminal may set a parameter adjustment range within which the adjusted parameter needs to lie when adjusting the parameter of the reference steering model.
In some embodiments, when the terminal actively adjusts the parameters of the reference steering model, in order to make the user know which parameters are specifically adjusted, how many parameters are adjusted, the terminal may display a parameter adjustment interface as shown in fig. 4. When the user manually adjusts the parameters of the reference steering model, the adjustment instruction may be triggered by a specified operation also in the parameter adjustment interface as shown in fig. 4.
Step 202: and the terminal determines the steering moment fluctuation of the steering structure model according to the structural parameters of the steering structure model.
Because the steering torque fluctuation of the obtained steering structure model will change after the parameter adjustment is performed on the reference steering model, the terminal needs to determine the steering torque fluctuation of the steering structure model according to the structural parameter of the steering structure model.
As an example, the operation of the terminal to determine the steering torque fluctuation of the steering structure model according to the structural parameter of the steering structure model may be: determining a first included angle between a steering shaft axis and a steering transmission shaft axis, a second included angle between the steering transmission shaft axis and a steering gear input shaft axis and a third included angle between a plane where the steering shaft axis and the steering transmission shaft axis are located and a plane where the steering transmission shaft axis and the steering gear input shaft axis are located in the steering structure model according to structural parameters of the steering structure model; setting phase angles of the forks at two ends of a steering transmission shaft in a steering structure model; and determining the steering torque fluctuation of the steering structure model through a torque fluctuation calculation formula according to the first included angle, the second included angle, the third included angle and the knuckle phase angle.
In order to facilitate determination of a first angle between the steering shaft axis and the steering drive shaft axis, a second angle between the steering drive shaft axis and the steering input shaft axis, and a third angle between a plane in which the steering shaft axis and the steering drive shaft axis are located and a plane in which the steering drive shaft axis and the steering input shaft axis are located in the steering structure model, the terminal may perform plane processing on the steering structure model to obtain a steering structure schematic diagram as shown in fig. 5. Wherein beta is 1 Is used for forming a first included angle, and the first included angle is the first included angle,β 2 and phi is a third included angle (not shown in the figure).
It should be noted that, according to the structural parameters of the steering structural model, the terminal may obtain the first included angle, the second included angle and the third included angle by measuring with an angle measuring tool in the application program.
As an example, the terminal may set the yoke phase angle at will, or the terminal may be provided with an angle setting range, and the terminal may set the yoke phase angle within the angle setting range. And/or, when receiving the angle setting instruction, the terminal can determine the angle carried in the angle setting instruction as the phase angle of the yoke. The angle setting instruction may also be triggered by a user through a specified operation.
It should be noted that the angle setting range may include a set of phase angles of the forks at corresponding positions in the steering system of the shipped automobile, and the like.
Step 203: and the terminal checks the steering system of the target automobile and the positions of parts adjacent to the steering system of the target automobile according to the steering torque fluctuation of the steering structure model, the structural parameters and the design parameters of the steering system of the target automobile so as to finish the structural check of the steering system of the automobile.
After the steering torque fluctuation of the steering structure model is determined, in order to ensure driving comfort, improve the waste of automobile cost and the problem of automobile performance deficiency, the terminal can check the positions of the steering system of the target automobile and parts adjacent to the steering system of the target automobile according to the steering torque fluctuation of the steering structure model, the structural parameters and the design parameters of the steering system of the target automobile.
As an example, the operation of the terminal to check the position of the steering system of the target automobile and the parts adjacent to the steering system of the target automobile according to the steering torque fluctuation of the steering structure model, the structural parameter, and the design parameter of the steering system of the target automobile may be: when the steering torque fluctuation is outside the preset fluctuation range, returning to the operation of step 201 until the steering torque fluctuation is within the preset fluctuation range; when the steering torque fluctuation is within a preset fluctuation range, determining boundary positions among all parts in the steering system of the target automobile and position gaps among parts adjacent to the steering system of the target automobile according to the structural parameters of the steering structural model and the design parameters of the steering system of the target automobile; and when the boundary positions among all the components in the steering system of the target automobile or the position gaps among the adjacent components in the steering system of the target automobile are not in accordance with the design requirements, returning to the operation of the step 201 until the boundary positions among all the components in the steering system of the target automobile and the position gaps among the adjacent components in the steering system of the target automobile are in accordance with the design requirements, and determining the positions of the steering system of the target automobile and the adjacent components of the steering system of the target automobile.
Since it is explained that if the steering system corresponding to the steering structure model is used when the steering torque fluctuation is outside the preset fluctuation range, the problem of poor driving comfort will occur to the target automobile, and therefore, it is necessary to redesign the steering structure model. When the steering torque fluctuation is within the preset fluctuation range, it is indicated that the steering torque fluctuation has little or no influence on the driving comfort. However, although the steering torque fluctuation satisfies the driving comfort requirement, the layout of other components in the steering system and/or other surrounding components may be affected by the components corresponding to the steering structure model, and therefore, the terminal needs to determine the boundary positions between the components in the steering system of the target automobile and the position gaps between the components adjacent to the steering system of the target automobile according to the structural parameters of the steering structure model and the design parameters of the steering system of the target automobile.
As an example, the design requirements may include boundary position requirements between individual components in the steering system and clearance requirements between individual components, which are set in advance by the terminal. For example, the boundary position between the respective parts is set not to exceed the preset position, the positional gap between the respective parts is required to be within the gap range, and so on. The gap may range from 0.5cm to 1cm, and so on.
It should be noted that the preset fluctuation range may be set in advance according to the requirement, for example, the preset fluctuation range may be 0% -5%, 0% -10%, or the like.
Step 204: the terminal displays a check report of the steering system of the target automobile and the positions of parts adjacent to the steering system of the target automobile.
Since the terminal may be applied to the target car after determining the positions of the steering system of the target car and the parts adjacent to the steering system of the target car, the terminal may display a check report of the positions of the steering system of the target car and the parts adjacent to the steering system of the target car in order for the user to understand the current design.
In some embodiments, the terminal may determine the steering structure model by means of model parameters of any one of the reference vehicles, and thus, the terminal may determine a plurality of steering structure models from model parameters of a plurality of reference vehicles, and determine a verification report of the steering system of a plurality of types of target vehicles and the positions of parts adjacent to the steering system of the target vehicles from the plurality of steering structure models. And then, the terminal can also compare the steering systems of the target automobiles of the plurality of types with the check reports of the positions of the parts adjacent to the steering systems of the target automobiles to obtain an optimal check report.
In the embodiment of the application, the terminal can determine the steering structure model of the steering system of the target automobile through the model parameters of the reference automobile which is delivered from the factory, and can determine the steering moment fluctuation of the steering structure model according to the structural parameters of the steering structure model, and can carry out structural check related to the steering system according to the steering moment fluctuation of the steering structure model, the structural parameters and the design parameters of the steering system of the target automobile, thereby improving the problems of design waste and incapability of adjusting the positions of parts, reducing the development cost, shortening the development period and simultaneously ensuring the performance of the automobile.
After explaining the structure checking method of the automobile steering system provided in the embodiment of the application, the structure checking device of the automobile steering system provided in the embodiment of the application is described next.
Fig. 6 is a schematic structural diagram of a structural checking device of an automobile steering system according to an embodiment of the present application, where the structural checking device of the automobile steering system may be implemented as part or all of a terminal by software, hardware, or a combination of both. Referring to fig. 6, the apparatus includes: a processing module 601, a determining module 602 and a checking module 603.
The processing module 601 is configured to process a steering system of a reference automobile according to an acquired model parameter of the reference automobile, to obtain a steering structure model and a structural parameter of the steering structure model, where the reference automobile is any automobile that is put into use, and the steering structure model is used to simulate a steering system of a target automobile, and the target automobile is an automobile in a design stage;
a determining module 602, configured to determine a steering torque fluctuation of the steering structure model according to a structural parameter of the steering structure model;
and the checking module 603 is configured to check the steering system of the target automobile and the positions of parts adjacent to the steering system of the target automobile according to the steering torque fluctuation and the structural parameter of the steering structural model and the design parameter of the steering system of the target automobile, so as to complete the structural check of the steering system of the automobile.
In some embodiments, referring to fig. 7, the processing module 601 includes:
an acquisition submodule 6011 for acquiring model parameters of the reference automobile;
the simulation submodule 6012 is used for simulating the steering system of the reference automobile according to the vehicle type parameters and the simulation proportion to obtain a reference steering model;
And the adjusting submodule 6013 is used for adjusting the structural parameters of the reference steering model to obtain the steering structural model and the structural parameters of the steering structural model.
In some embodiments, referring to fig. 8, the determining module 602 includes:
a first determining submodule 6021, configured to determine, according to a structural parameter of the steering structural model, a first included angle between a steering shaft axis and a steering transmission shaft axis, a second included angle between the steering transmission shaft axis and a steering input shaft axis, and a third included angle between a plane where the steering shaft axis and the steering transmission shaft axis are located and a plane where the steering transmission shaft axis and the steering input shaft axis are located in the steering structural model;
a setting submodule 6022 for setting the phase angles of the forks at the two ends of the steering transmission shaft in the steering structure model;
and a second determining submodule 6023, configured to determine steering torque fluctuation of the steering structure model according to the first included angle, the second included angle, the third included angle and the yoke phase angle by using a torque fluctuation calculation formula.
In some embodiments, referring to fig. 9, the checking module 603 includes:
The first triggering submodule 6031 is used for triggering the processing module 601 to process a steering system of the reference automobile according to the acquired model parameters of the reference automobile when the steering torque fluctuation is out of a preset fluctuation range until the steering torque fluctuation is in the preset fluctuation range;
a third determining submodule 6032, configured to determine, when the steering torque fluctuation is within a preset fluctuation range, a boundary position between each component in the steering system of the target automobile and a position gap between components adjacent to the steering system of the target automobile according to a structural parameter of the steering structural model and a design parameter of the steering system of the target automobile;
and the second triggering submodule 6033 is configured to trigger the processing module 601 to process the steering system of the reference automobile according to the obtained model parameter of the reference automobile when the boundary position between each component in the steering system of the target automobile or the position gap between adjacent components in the steering system of the target automobile does not meet the design requirement, until the boundary position between each component in the steering system of the target automobile and the position gap between adjacent components in the steering system of the target automobile meet the design requirement, and determine the positions of the steering system of the target automobile and the components adjacent to the steering system of the target automobile.
In some embodiments, referring to fig. 10, the apparatus further comprises:
and the display module 604 is used for displaying a check report of the steering system of the target automobile and the positions of parts adjacent to the steering system of the target automobile.
In the embodiment of the application, the terminal can determine the steering structure model of the steering system of the target automobile through the model parameters of the reference automobile which is delivered from the factory, and can determine the steering moment fluctuation of the steering structure model according to the structural parameters of the steering structure model, and can carry out structural check related to the steering system according to the steering moment fluctuation of the steering structure model, the structural parameters and the design parameters of the steering system of the target automobile, thereby improving the problems of design waste and incapability of adjusting the positions of parts, reducing the development cost, shortening the development period and simultaneously ensuring the performance of the automobile.
It should be noted that: the structure checking device of the automobile steering system provided in the above embodiment only illustrates the division of the above functional modules when checking the structure of the automobile steering system, and in practical application, the above functional allocation may be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the structure checking device of the automobile steering system provided in the above embodiment and the structure checking method embodiment of the automobile steering system belong to the same concept, and the specific implementation process thereof is detailed in the method embodiment and will not be described herein again.
Fig. 11 is a block diagram of a terminal 1100 according to an embodiment of the present application. The terminal 1100 may be a portable mobile terminal such as: smart phones, tablet computers, notebook computers or desktop computers. Terminal 1100 may also be referred to by other names of user devices, portable terminals, laptop terminals, desktop terminals, and the like.
Generally, the terminal 1100 includes: a processor 1101 and a memory 1102.
The processor 1101 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 1101 may be implemented in at least one hardware form of DSP (Digital Signal Processing ), FPGA (Field-Programmable Gate Array, field programmable gate array), PLA (Programmable Logic Array ). The processor 1101 may also include a main processor, which is a processor for processing data in an awake state, also called a CPU (Central Processing Unit ), and a coprocessor; a coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 1101 may integrate a GPU (Graphics Processing Unit, image processor) for rendering and drawing of content required to be displayed by the display screen. In some embodiments, the processor 1101 may also include an AI (Artificial Intelligence ) processor for processing computing operations related to machine learning.
Memory 1102 may include one or more computer-readable storage media, which may be non-transitory. Memory 1102 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 1102 is used to store at least one instruction for execution by processor 1101 to implement the method of checking the structure of an automotive steering system provided by the method embodiments herein.
In some embodiments, the terminal 1100 may further optionally include: a peripheral interface 1103 and at least one peripheral. The processor 1101, memory 1102, and peripheral interface 1103 may be connected by a bus or signal lines. The individual peripheral devices may be connected to the peripheral device interface 1103 by buses, signal lines or circuit boards. Specifically, the peripheral device includes: at least one of radio frequency circuitry 1104, a display screen 1105, a camera assembly 1106, audio circuitry 1107, a positioning assembly 1108, and a power supply 1109.
A peripheral interface 1103 may be used to connect I/O (Input/Output) related at least one peripheral device to the processor 1101 and memory 1102. In some embodiments, the processor 1101, memory 1102, and peripheral interface 1103 are integrated on the same chip or circuit board; in some other embodiments, any one or both of the processor 1101, memory 1102, and peripheral interface 1103 may be implemented on a separate chip or circuit board, which is not limited in this embodiment.
The Radio Frequency circuit 1104 is used to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The radio frequency circuit 1104 communicates with a communication network and other communication devices via electromagnetic signals. The radio frequency circuit 1104 converts an electrical signal into an electromagnetic signal for transmission, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 1104 includes: antenna systems, RF transceivers, one or more amplifiers, tuners, oscillators, digital signal processors, codec chipsets, subscriber identity module cards, and so forth. The radio frequency circuitry 1104 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocol includes, but is not limited to: the world wide web, metropolitan area networks, intranets, generation mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks, and/or WiFi (Wireless Fidelity ) networks. In some embodiments, the radio frequency circuitry 1104 may also include NFC (Near Field Communication, short range wireless communication) related circuitry, which is not limited in this application.
The display screen 1105 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display 1105 is a touch display, the display 1105 also has the ability to collect touch signals at or above the surface of the display 1105. The touch signal may be input to the processor 1101 as a control signal for processing. At this time, the display screen 1105 may also be used to provide virtual buttons and/or virtual keyboards, also referred to as soft buttons and/or soft keyboards. In some embodiments, the display 1105 may be one, providing a front panel of the terminal 1100; in other embodiments, the display 1105 may be at least two, respectively disposed on different surfaces of the terminal 1100 or in a folded design; in still other embodiments, the display 1105 may be a flexible display disposed on a curved surface or a folded surface of the terminal 1100. Even more, the display 1105 may be arranged in a non-rectangular irregular pattern, i.e., a shaped screen. The display 1105 may be made of LCD (Liquid Crystal Display ), OLED (Organic Light-Emitting Diode) or other materials.
The camera assembly 1106 is used to capture images or video. Optionally, the camera assembly 1106 includes a front camera and a rear camera. Typically, the front camera is disposed on the front panel of the terminal and the rear camera is disposed on the rear surface of the terminal. In some embodiments, the at least two rear cameras are any one of a main camera, a depth camera, a wide-angle camera and a tele camera, so as to realize that the main camera and the depth camera are fused to realize a background blurring function, and the main camera and the wide-angle camera are fused to realize a panoramic shooting and Virtual Reality (VR) shooting function or other fusion shooting functions. In some embodiments, the camera assembly 1106 may also include a flash. The flash lamp can be a single-color temperature flash lamp or a double-color temperature flash lamp. The dual-color temperature flash lamp refers to a combination of a warm light flash lamp and a cold light flash lamp, and can be used for light compensation under different color temperatures.
The audio circuit 1107 may include a microphone and a speaker. The microphone is used for collecting sound waves of users and environments, converting the sound waves into electric signals, and inputting the electric signals to the processor 1101 for processing, or inputting the electric signals to the radio frequency circuit 1104 for voice communication. For purposes of stereo acquisition or noise reduction, a plurality of microphones may be provided at different portions of the terminal 1100, respectively. The microphone may also be an array microphone or an omni-directional pickup microphone. The speaker is used to convert electrical signals from the processor 1101 or the radio frequency circuit 1104 into sound waves. The speaker may be a conventional thin film speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, not only the electric signal can be converted into a sound wave audible to humans, but also the electric signal can be converted into a sound wave inaudible to humans for ranging and other purposes. In some embodiments, the audio circuit 1107 may also include a headphone jack.
The location component 1108 is used to locate the current geographic location of the terminal 1100 to enable navigation or LBS (Location Based Service, location based services). The positioning component 1108 may be a positioning component based on the United states GPS (Global Positioning System ), the Beidou system of China, or the Galileo system of Russia.
A power supply 1109 is used to supply power to various components in the terminal 1100. The power source 1109 may be an alternating current, a direct current, a disposable battery, or a rechargeable battery. When the power source 1109 includes a rechargeable battery, the rechargeable battery may be a wired rechargeable battery or a wireless rechargeable battery. The wired rechargeable battery is a battery charged through a wired line, and the wireless rechargeable battery is a battery charged through a wireless coil. The rechargeable battery may also be used to support fast charge technology.
In some embodiments, terminal 1100 also includes one or more sensors 1110. The one or more sensors 1110 include, but are not limited to: acceleration sensor 1111, gyroscope sensor 1112, pressure sensor 1113, fingerprint sensor 1114, optical sensor 1115, and proximity sensor 1116.
The acceleration sensor 1111 may detect the magnitudes of accelerations on three coordinate axes of a coordinate system established with the terminal 1100. For example, the acceleration sensor 1111 may be configured to detect components of gravitational acceleration in three coordinate axes. The processor 1101 may control the touch display screen 1105 to display a user interface in a landscape view or a portrait view according to a gravitational acceleration signal acquired by the acceleration sensor 1111. Acceleration sensor 1111 may also be used for the acquisition of motion data of a game or a user.
The gyro sensor 1112 may detect a body direction and a rotation angle of the terminal 1100, and the gyro sensor 1112 may collect a 3D motion of the user on the terminal 1100 in cooperation with the acceleration sensor 1111. The processor 1101 may implement the following functions based on the data collected by the gyro sensor 1112: motion sensing (e.g., changing UI according to a tilting operation by a user), image stabilization at shooting, game control, and inertial navigation.
The pressure sensor 1113 may be disposed at a side frame of the terminal 1100 and/or at a lower layer of the touch display screen 1105. When the pressure sensor 1113 is disposed at a side frame of the terminal 1100, a grip signal of the terminal 1100 by a user may be detected, and the processor 1101 performs a right-left hand recognition or a shortcut operation according to the grip signal collected by the pressure sensor 1113. When the pressure sensor 1113 is disposed at the lower layer of the touch display screen 1105, the processor 1101 controls the operability control on the UI interface according to the pressure operation of the user on the touch display screen 1105. The operability controls include at least one of a button control, a scroll bar control, an icon control, and a menu control.
The fingerprint sensor 1114 is used to collect a fingerprint of the user, and the processor 1101 identifies the identity of the user based on the collected fingerprint of the fingerprint sensor 1114, or the fingerprint sensor 1114 identifies the identity of the user based on the collected fingerprint. Upon recognizing that the user's identity is a trusted identity, the user is authorized by the processor 1101 to perform relevant sensitive operations including unlocking the screen, viewing encrypted information, downloading software, paying for and changing settings, etc. Fingerprint sensor 1114 may be disposed on the front, back, or side of terminal 1100. When a physical key or vendor Logo is provided on the terminal 1100, the fingerprint sensor 1114 may be integrated with the physical key or vendor Logo.
The optical sensor 1115 is used to collect the ambient light intensity. In one embodiment, the processor 1101 may control the display brightness of the touch display screen 1105 based on the intensity of ambient light collected by the optical sensor 1115. Specifically, when the intensity of the ambient light is high, the display luminance of the touch display screen 1105 is turned up; when the ambient light intensity is low, the display luminance of the touch display screen 1105 is turned down. In another embodiment, the processor 1101 may also dynamically adjust the shooting parameters of the camera assembly 1106 based on the intensity of ambient light collected by the optical sensor 1115.
A proximity sensor 1116, also referred to as a distance sensor, is typically provided on the front panel of the terminal 1100. The proximity sensor 1116 is used to collect a distance between the user and the front surface of the terminal 1100. In one embodiment, when the proximity sensor 1116 detects that the distance between the user and the front face of the terminal 1100 gradually decreases, the processor 1101 controls the touch display 1105 to switch from the bright screen state to the off screen state; when the proximity sensor 1116 detects that the distance between the user and the front surface of the terminal 1100 gradually increases, the touch display screen 1105 is controlled by the processor 1101 to switch from the off-screen state to the on-screen state.
Those skilled in the art will appreciate that the structure shown in fig. 11 is not limiting and that terminal 1100 may include more or fewer components than shown, or may combine certain components, or may employ a different arrangement of components.
In some embodiments, there is also provided a computer readable storage medium having stored therein a computer program which, when executed by a processor, implements the steps of the structure checking method of the steering system of a vehicle in the above embodiments. For example, the computer readable storage medium may be a ROM (Read-Only Memory), a RAM (Random Access Memory ), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
It is noted that the computer readable storage medium mentioned in the present application may be a non-volatile storage medium, in other words, may be a non-transitory storage medium.
It should be understood that all or part of the steps to implement the above-described embodiments may be implemented by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The computer instructions may be stored in the computer-readable storage medium described above.
That is, in some embodiments, there is also provided a computer program product containing instructions that, when run on a computer, cause the computer to perform the steps of the above-described method of checking the structure of a steering system of a vehicle.
The above embodiments are provided for the purpose of not limiting the present application, but rather, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application are intended to be included within the scope of the present application.
Claims (10)
1. A method for checking the structure of an automotive steering system, the method comprising:
according to the acquired model parameters of the reference automobile, simulating a steering system of the reference automobile according to the model parameters and the simulation proportion to obtain a reference steering model, and adjusting structural parameters of the reference steering model to obtain a steering structural model and structural parameters of the steering structural model, wherein the reference automobile is any automobile which is put into use, the steering structural model is used for simulating the steering system of a target automobile, and the target automobile is an automobile in a design stage;
determining a first included angle between a steering shaft axis and a steering transmission shaft axis, a second included angle between the steering transmission shaft axis and a steering gear input shaft axis and a third included angle between a plane where the steering shaft axis and the steering transmission shaft axis are located and a plane where the steering transmission shaft axis and the steering gear input shaft axis are located in the steering structure model according to structural parameters of the steering structure model;
Setting the phase angles of the forks at the two ends of the steering transmission shaft in the steering structure model;
determining steering torque fluctuation of the steering structure model according to the first included angle, the second included angle, the third included angle and the knuckle phase angle through a torque fluctuation calculation formula;
and checking the steering system of the target automobile and the positions of parts adjacent to the steering system of the target automobile according to the steering torque fluctuation and the structural parameters of the steering structural model and the design parameters of the steering system of the target automobile so as to finish the structural check of the steering system of the automobile.
2. The method according to claim 1, wherein the processing the steering system of the reference car according to the acquired model parameters of the reference car to obtain a steering structure model and the structural parameters of the steering structure model includes:
acquiring model parameters of the reference automobile;
simulating the steering system of the reference automobile according to the automobile model parameters and the simulation proportion to obtain a reference steering model;
and adjusting the structural parameters of the reference steering model to obtain the steering structural model and the structural parameters of the steering structural model.
3. The method of claim 1, wherein said determining steering torque fluctuations of said steering structural model from structural parameters of said steering structural model comprises:
determining a first included angle between a steering shaft axis and a steering transmission shaft axis, a second included angle between the steering transmission shaft axis and a steering gear input shaft axis and a third included angle between a plane where the steering shaft axis and the steering transmission shaft axis are located and a plane where the steering transmission shaft axis and the steering gear input shaft axis are located in the steering structure model according to structural parameters of the steering structure model;
setting the phase angles of the forks at the two ends of the steering transmission shaft in the steering structure model;
and determining the steering torque fluctuation of the steering structure model through a torque fluctuation calculation formula according to the first included angle, the second included angle, the third included angle and the knuckle phase angle.
4. The method of claim 1, wherein the checking the position of the steering system of the target vehicle and the components adjacent to the steering system of the target vehicle based on the steering torque fluctuations of the steering structure model, the structural parameters, and the design parameters of the steering system of the target vehicle comprises:
When the steering torque fluctuation is out of a preset fluctuation range, returning to the operation of processing the steering system of the reference automobile according to the acquired model parameters of the reference automobile until the steering torque fluctuation is in the preset fluctuation range;
when the steering torque fluctuation is within a preset fluctuation range, determining boundary positions among all parts in a steering system of the target automobile and position gaps among parts adjacent to the steering system of the target automobile according to the structural parameters of the steering structural model and the design parameters of the steering system of the target automobile;
and returning to processing the steering system of the reference automobile according to the acquired model parameters of the reference automobile when the boundary positions among all the components in the steering system of the target automobile or the position gaps among the adjacent components of the steering system of the target automobile are not in accordance with the design requirements, until the boundary positions among all the components in the steering system of the target automobile and the position gaps among the adjacent components of the steering system of the target automobile are in accordance with the design requirements, and determining the positions of the steering system of the target automobile and the adjacent components of the steering system of the target automobile.
5. The method of claim 1, wherein after checking the position of the steering system of the target vehicle and the parts adjacent to the steering system of the target vehicle based on the steering torque fluctuation of the steering structure model, the structural parameters, and the design parameters of the steering system of the target vehicle, further comprising:
and displaying a check report of the steering system of the target automobile and the positions of parts adjacent to the steering system of the target automobile.
6. A structure checking device of an automobile steering system, characterized by comprising:
the processing module is used for simulating a steering system of the reference automobile according to the acquired model parameters of the reference automobile and the model proportion to obtain a reference steering model, adjusting the structural parameters of the reference steering model to obtain a steering structural model and the structural parameters of the steering structural model, wherein the reference automobile is any automobile which is put into use, the steering structural model is used for simulating the steering system of a target automobile, and the target automobile is an automobile in a design stage;
the determining module is used for determining a first included angle between a steering shaft axis and a steering transmission shaft axis, a second included angle between the steering transmission shaft axis and a steering device input shaft axis and a third included angle between a plane where the steering shaft axis and the steering transmission shaft axis are located and a plane where the steering transmission shaft axis and the steering device input shaft axis are located in the steering structure model according to the structural parameters of the steering structure model; setting the phase angles of the forks at the two ends of the steering transmission shaft in the steering structure model; determining steering torque fluctuation of the steering structure model according to the first included angle, the second included angle, the third included angle and the knuckle phase angle through a torque fluctuation calculation formula;
And the checking module is used for checking the steering system of the target automobile and the positions of parts adjacent to the steering system of the target automobile according to the steering moment fluctuation and the structural parameters of the steering structural model and the design parameters of the steering system of the target automobile so as to finish the structural check of the steering system of the automobile.
7. The apparatus of claim 6, wherein the processing module comprises:
the acquisition sub-module is used for acquiring the model parameters of the reference automobile;
the simulation sub-module is used for simulating the steering system of the reference automobile according to the vehicle type parameters and the simulation proportion to obtain a reference steering model;
and the adjustment sub-module is used for adjusting the structural parameters of the reference steering model to obtain the steering structural model and the structural parameters of the steering structural model.
8. The apparatus of claim 6, wherein the determining module comprises:
the first determining submodule is used for determining a first included angle between a steering shaft axis and a steering transmission shaft axis, a second included angle between the steering transmission shaft axis and a steering device input shaft axis and a third included angle between a plane where the steering shaft axis and the steering transmission shaft axis are located and a plane where the steering transmission shaft axis and the steering device input shaft axis are located in the steering structure model according to the structural parameters of the steering structure model;
The setting submodule is used for setting the phase angles of the forks at the two ends of the steering transmission shaft in the steering structure model;
and the second determining submodule is used for determining the steering torque fluctuation of the steering structural model according to the first included angle, the second included angle, the third included angle and the knuckle phase angle through a torque fluctuation calculation formula.
9. The apparatus of claim 6, wherein the verification module comprises:
the first triggering sub-module is used for triggering the processing module to process the steering system of the reference automobile according to the acquired model parameters of the reference automobile when the steering torque fluctuation is out of a preset fluctuation range until the steering torque fluctuation is within the preset fluctuation range;
a third determining sub-module, configured to determine, when the steering torque fluctuation is within a preset fluctuation range, a boundary position between each component in the steering system of the target automobile and a position gap between components adjacent to the steering system of the target automobile according to a structural parameter of the steering structural model and a design parameter of the steering system of the target automobile;
And the second triggering sub-module is used for triggering the processing module to process the steering system of the reference automobile according to the acquired model parameters of the reference automobile when the boundary positions among all the components in the steering system of the target automobile or the position gaps among the adjacent components of the steering system of the target automobile are not in accordance with the design requirements, until the boundary positions among all the components in the steering system of the target automobile and the position gaps among the adjacent components of the steering system of the target automobile are in accordance with the design requirements, and determining the positions of the steering system of the target automobile and the adjacent components of the steering system of the target automobile.
10. A computer-readable storage medium, characterized in that the storage medium has stored therein a computer program which, when executed by a processor, implements the steps of the method of any of claims 1-5.
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| CN111985054B (en) * | 2020-08-25 | 2024-03-12 | 北京新能源汽车股份有限公司 | Method and system for checking slip deflection angle of driving shaft |
| CN112417609B (en) * | 2020-12-15 | 2022-03-25 | 中国第一汽车股份有限公司 | Steering transmission shaft optimization design method, computer equipment and storage medium |
| CN113255153A (en) * | 2021-06-09 | 2021-08-13 | 奇瑞汽车股份有限公司 | Analog simulation method and device for electric power steering system and storage medium |
| CN113859393B (en) * | 2021-10-29 | 2022-06-24 | 岚图汽车科技有限公司 | Design method of steering column and steering gear yoke |
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