Vehicle door limiting parameter determination method and device, computer equipment and storage medium

Abstract

The embodiment of the invention relates to a vehicle door limiting parameter determination method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring parameters of a limiter of a vehicle door when a vehicle door opening angle is a target angle; according to the parameters of the limiting stopper, determining the tangential acting force of the limiting stopper of the vehicle door along a central curve; according to the equivalent force arm of the limiter and the tangential acting force, the moment of force of the limiter to the vehicle door and door closing assisting energy are obtained; the equivalent force arm is an equivalent force arm corresponding to the meshing position of the limiting arm of the limiter and the sliding block when the opening angle of the vehicle door is the target angle. By adopting the method, the efficiency of determining the limiting parameters of the vehicle door limiter can be improved.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the field of automobile technology, and in particular, to a method, device, computer equipment, and storage medium for determining door limit parameters. Background Art

[0002] With the development of automobile technology, the requirements for the operating force and energy of opening and closing doors are getting higher and higher. Usually, by obtaining the limit parameters of the door limiter and changing the layout scheme, structure and other parameters of the door limiter, the operating force performance of the door limiter can be improved, thereby meeting the requirements of the door operating force and energy.

[0003] In the conventional technology, the layout and structural parameters of the door stopper are simulated by simulation software to obtain the door operating force and energy, and then determine the parameters of the door stopper. However, the conventional technology has the problem of low efficiency in determining the parameters of the door stopper. Summary of the invention

[0004] The embodiments of the present disclosure provide a method, an apparatus, a computer device and a storage medium for determining parameters of a vehicle door stop, which can be used to improve the efficiency of determining parameters of a vehicle door stop.

[0005] In a first aspect, an embodiment of the present disclosure provides a method for determining a door limit parameter, the method comprising:

[0006] Get the door limiter parameters when the door opening angle is the target angle;

[0007] Determining the tangential force of the door stopper along the center curve according to the stopper parameters;

[0008] According to the equivalent force arm of the limiter and the tangential force, the torque of the limiter on the door and the door-closing assist energy are obtained; the equivalent force arm is the equivalent force arm corresponding to the engagement point between the limit arm of the limiter and the slider when the door opening angle is the target angle.

[0009] In a second aspect, an embodiment of the present disclosure provides a device for determining a door limit parameter, the device comprising:

[0010] A first acquisition module is used to acquire the door stopper parameters when the door opening angle is the target angle;

[0011] A determination module, used to determine the tangential force of the door stopper along the center curve according to the stopper parameters;

[0012] The second acquisition module is used to obtain the torque of the limiter on the vehicle door and the door closing assist energy according to the equivalent force arm of the limiter and the tangential force; the equivalent force arm is the equivalent force arm corresponding to the engagement point between the limit arm of the limiter and the slider when the opening angle of the vehicle door is the target angle.

[0013] In a third aspect, an embodiment of the present disclosure provides a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method described in the first aspect when executing the computer program.

[0014] In a fourth aspect, an embodiment of the present disclosure provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method described in the first aspect above.

[0015] In a fifth aspect, an embodiment of the present disclosure provides a computer program product, including a computer program, which implements the method described in the first aspect when executed by a processor.

[0016] The method, device, computer equipment and storage medium for determining the door limit parameters provided by the embodiments of the present disclosure can quickly determine the tangential force of the door limiter along the center curve according to the door limiter parameters by acquiring the door limiter parameters when the door opening angle is the target angle, so that the torque of the door limiter on the door and the door closing assisting energy can be obtained according to the determined tangential force of the door limiter along the center curve and the equivalent force arm corresponding to the meshing point between the limit arm of the limiter and the slider when the door opening angle is the target angle. Since the calculation process is relatively simple and does not introduce too many simulation operations, the torque of the door limiter on the door and the door closing assisting energy can be quickly determined. Compared with the solution of simulating the arrangement and structural parameters of the door limiter through simulation software to obtain the limit parameters of the door limiter in the traditional technology, a large number of simulation fitting operations are reduced in the process, and the torque of the door limiter on the door and the door closing assisting energy can be obtained relatively quickly when the door opening angle is the target angle, thereby improving the efficiency of determining the parameters of the door limiter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an application environment diagram of a method for determining door limit parameters in one embodiment;

[0018] Figure 2 is a flow chart of a method for determining door limit parameters in one embodiment;

[0019] Figure 3 is a flow chart of a method for determining door limit parameters in another embodiment;

[0020] Figure 4 A schematic diagram of obtaining the slope of the tangent point in one embodiment;

[0021] Figure 5 is a flow chart of a method for determining door limit parameters in another embodiment;

[0022] Figure 6 is a structural block diagram of a device for determining door limit parameters in one embodiment;

[0023] Figure 7 is a structural block diagram of a device for determining door limit parameters in one embodiment;

[0024] Figure 8 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure more clear, the embodiments of the present disclosure are further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present disclosure and are not used to limit the embodiments of the present disclosure.

[0026] First, before specifically introducing the technical solution of the embodiment of the present disclosure, the technical background or technical evolution context on which the embodiment of the present disclosure is based is introduced. Generally, in the field of door limiter design, the current technical background is: the layout and structure of the door limiter are modeled using simulation software, and then finite element analysis is performed. However, finite element analysis uses iterative operations, which greatly increases the amount of calculations, and thus leads to the design of the layout parameters and structural parameters of the limiter according to the results of finite element analysis, resulting in the problem of low efficiency in limiter design. Based on this background, the applicant has found through long-term model simulation research and development and the collection, demonstration and verification of experimental data that when the layout and structure of the door limiter are more complex, the amount of calculation of the finite element analysis will increase greatly, which greatly reduces the efficiency of designing the layout parameters and structural parameters of the limiter according to the results of finite element analysis. How to improve the design efficiency of the layout and structural parameters of the door limiter has become a difficult problem that needs to be solved urgently. In addition, it should be noted that the use of finite element analysis in the simulation process of conventional simulation software requires iterative calculations, which increases the amount of calculations and reduces the analysis efficiency, resulting in the inability to efficiently obtain the door limit parameters and the technical solutions introduced in the following embodiments. The applicants have put in a lot of creative work.

[0027] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0028] It should be noted that the beneficial effects brought about by the embodiments of the present application or the technical problems solved are not limited to this one, but may also include other implicit or related problems. For details, please refer to the description of the following embodiments.

[0029] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The technical solution involved in the embodiments of the present disclosure is introduced below in combination with the scenarios to which the embodiments of the present disclosure are applied.

[0030] The method for determining the door limit parameters provided in the embodiment of the present disclosure can be applied to Figure 1 In the application environment shown, the computer device 102 communicates with the vehicle 104 through a network. The computer device 102 may be, but is not limited to, various personal computers, laptop computers, and tablet computers, and the vehicle 104 may be a motor vehicle such as a car or a truck. The vehicle 104 is provided with a communication component, and the parameters of the door stopper can be transmitted to the computer device 102 through the network.

[0031] In one embodiment, Figure 2 As shown, a method for determining door limit parameters is provided, and the method is applied to Figure 1 The computer device in the example is used to illustrate, including the following steps:

[0032] S201, obtaining the door limiter parameters when the door opening angle is the target angle.

[0033] Among them, the door limiter is a device used to limit the degree of door opening. According to the type of friction force, it can be divided into rolling friction limiter and sliding friction limiter. Usually, the door limiter bracket can be fixedly installed on the car body, and the limit box can be fixedly installed on the car door. When the door is opened, the limit box will move with the limit arm. Due to the different height structures on the limit arm, the limiter spring will produce different deformations. Different limit forces can be generated by different deformations of the spring, thereby realizing the limitation of the door opening degree; the door opening angle is the angle between the door and the car body when the door is opened. Optionally, the door opening angle can be 40 degrees or 60 degrees, which is not limited in this embodiment. The door limiter parameters refer to the parameters generated by the door limiter during the door opening process, such as the limiter spring compression, the friction coefficient between the limit box and the limit arm, etc.

[0034] It should be noted that the limiter parameters are related to the material and process of the limiter arm itself. In this embodiment, the material and process of the limiter arm of the vehicle door can be determined first, and then the limiter parameters of the vehicle door corresponding to the target angle in this embodiment can be found from the limiter layout plan data corresponding to the determined material and process.

[0035] S202: Determine the tangential force of the door stopper along the center curve according to the stopper parameters.

[0036] Among them, the tangential force of the door limiter along the center curve refers to the force applied to the door in the tangential direction of the door rotation direction during the door opening or closing process, that is, the force applied to the tangent point between the limiter and the center curve of the limit arm.

[0037] In this embodiment, by performing a force analysis on the limiter, different mapping relationships between the limiter parameters and the tangential force of the limiter along the center curve can be determined based on the results of the force analysis, thereby determining the tangential force of the limiter of the door along the center curve based on different mapping relationships and the limiter parameters.

[0038] S203, according to the equivalent force arm and tangential force of the limiter, obtain the torque of the limiter on the door and the door closing assist energy; the equivalent force arm is the equivalent force arm corresponding to the meshing point between the limiter arm and the slider when the door opening angle is the target angle.

[0039] It should be noted that the position of the slider corresponding to different angles of the door opening is also different. Therefore, the tangential force between the slider and the limit arm is also different. The equivalent force arm of the limiter can be determined according to the position of the slider, wherein the equivalent force arm of the limiter refers to the equivalent force arm corresponding to the engagement point of the limit arm and the slider; the torque of the door refers to the resistance torque generated when the door is opened, and the torque generated will be different when the limiter is arranged at different positions; the door closing assist energy refers to the energy generated by the limiter to overcome the door closing resistance when closing the door.

[0040] In this embodiment, the torque of the vehicle door can be obtained according to the mapping relationship between the equivalent effective arm, the tangential force and the torque of the vehicle door; further, since the door closing assist energy is related to the torque of the limiter on the vehicle door, after determining the torque of the limiter on the vehicle door, the torque of the limiter on the vehicle door can be converted and analyzed to determine the door closing assist energy.

[0041] In the above-mentioned method for determining the door limit parameters, by obtaining the door limiter parameters when the door opening angle is the target angle, the tangential force of the door limiter along the center curve can be quickly determined according to the door limiter parameters. At the same time, according to the determined tangential force of the limiter along the center curve and the equivalent force arm corresponding to the meshing point between the limiter arm and the slider of the limiter when the door opening angle is the target angle, the torque of the limiter on the door and the door closing assist energy can be obtained. Since the calculation process is relatively simple and does not introduce too many simulation operations, the torque of the limiter on the door and the door closing assist energy can be quickly determined. Compared with the solution of simulating the arrangement and structural parameters of the door limiter through simulation software to obtain the limit parameters of the door limiter in the traditional technology, a large number of simulation fitting operations are reduced in this process, and the torque of the limiter on the door and the door closing assist energy when the door opening angle is the target angle can be obtained relatively quickly, thereby improving the efficiency of determining the limit parameters of the door limiter.

[0042] In the above scenario where the tangential force of the door stopper along the center curve is determined based on the stopper parameters, the mapping relationship of the tangential force corresponding to different stopper parameters is also different. Therefore, the mapping relationship of the tangential force can be determined based on the stopper parameters first, and then the tangential force can be determined based on the stopper parameters and the mapping relationship. In one embodiment, the above-mentioned stopper parameters include the tangent point slope of the contact point between the slider and the stopper arm, such as Figure 3 As shown, the above S202 includes:

[0043] S301, determining a mapping relationship of the tangential force according to a corresponding relationship between the tangent point slope and other limit parameters in the limiter parameters.

[0044] The tangent point slope is the slope of the tangent point between the trajectory curve of the slider of the limiter and the limit arm curve, and the mapping relationship of the tangential force refers to the mapping relationship between the parameters of the limiter and the tangential force. It should be noted that the corresponding relationship between the tangent point slope and other limit parameters is different, and the mapping relationship of the determined tangential force is also different. For example, the schematic diagram of obtaining the tangent point slope can be as follows Figure 4 As shown in the figure, the horizontal axis is the length of the limit arm, the vertical axis is the thickness of the limit arm, the solid line is the curve graph of the limit arm, the dotted line is the trajectory curve of the slider, and the point indicated by the arrow in the figure is the intersection between the trajectory curve of the slider and the limit arm curve, and the slope at the intersection is the above-mentioned tangent slope.

[0045] Optionally, in this embodiment, other limit parameters in the limiter parameters may include the limiter spring compression, the first friction coefficient between the slider and the limiter arm, the second friction coefficient between the slider and the limiter box, the pressure of the limiter spring, the spring elastic coefficient, etc. Among them, the limiter spring compression refers to the maximum height that the limiter spring can be compressed before being fully compacted during the opening and closing process of the door, that is, the value of the spring's free height minus the spring's compressed height; the first friction coefficient between the slider and the limiter arm refers to the ratio of the friction between the slider and the limiter arm and the vertical force acting on one surface of the slider and the limiter arm during the opening and closing process of the door; the first friction coefficient can be determined by the surface roughness of the slider and the limiter arm; the second friction coefficient between the slider and the limiter box refers to the ratio of the friction between the slider and the limiter box and the vertical force acting on one surface of the slider and the limiter box during the opening and closing process of the door, and the second friction coefficient can be determined by the surface roughness of the slider and the limiter box; the pressure of the limiter spring refers to the elastic force of the compression spring, and the spring elastic coefficient can be determined according to the performance of the limiter spring itself.

[0046] In this embodiment, the force on the limiter slider under different limiter arrangements can be analyzed, and the different corresponding relationships between the tangent point slope of the slider and the limiter arm contact point and other limiter parameters in the limiter parameters, as well as the mapping relationship between the limiter parameters and the tangential force can be determined based on the analysis results.

[0047] S302: Determine the tangential force of the door stopper along the center curve according to the stopper parameters and the mapping relationship.

[0048] The stopper parameters may include the tangent point slope and other stopper parameters in the above-mentioned stopper parameters. It should be noted that the mapping relationship of the tangential force is different, and the determined tangential force is also different. In this embodiment, after determining the mapping relationship of the tangential force, the tangential force of the door stopper along the center curve can be determined according to the mapping relationship of the tangential force and the stopper parameters related to the mapping relationship.

[0049] In this embodiment, after determining the mapping relationship of the tangential force of the door limiter along the center curve, the limiter parameters included in the mapping relationship can be determined first, and then the limiter parameters can be substituted into the mapping relationship to determine the tangential force of the door limiter along the center curve.

[0050] In this embodiment, the process of determining the mapping relationship of the tangential force of the door limiter along the center curve according to the corresponding relationship between the slope of the tangent point and other limit parameters in the limiter parameters is relatively simple, and the mapping relationship of the tangential force of the door limiter along the center curve can be quickly determined, so that the tangential force of the door limiter along the center curve can be quickly determined according to the limiter parameters and the mapping relationship, thereby improving the efficiency of determining the tangential force; in addition, according to the corresponding relationship between the slope of the tangent point between the slider of the limiter and the limit arm curve and other limit parameters in the limiter parameters, the mapping relationship of the tangential force can be accurately determined, so that the tangential force of the door limiter along the center curve can be accurately determined according to the limiter parameters of the door and the determined mapping relationship, thereby improving the accuracy of the determined tangential force of the door limiter along the center curve.

[0051] It should be noted that when the door is rotated to different rotation angles, the slope of the tangent point between the slider of the stopper and the limit arm curve is also different, and the corresponding relationship between different tangent point slopes and other limit parameters in the limiter parameters is also different. If the corresponding relationship is different, the mapping relationship of the determined tangent force is also different. The mapping relationship determined by the different corresponding relationships between the tangent point slope and other limit parameters in the limiter parameters is described in detail below through different embodiments.

[0052] The first one, in one embodiment, the above S301 includes: if the above corresponding relationship is that the absolute value of the tangent slope is greater than the absolute value of the first friction coefficient, or the tangent slope is greater than zero and less than a preset ratio, then the mapping relationship is determined to be a first relationship, and the first relationship includes a mapping relationship between a first calculation formula and a second calculation formula; the first calculation formula includes the pressure, spring elastic coefficient and compression of the limiter spring; the second calculation formula includes the difference between the third calculation formula and the second friction coefficient; the third calculation formula includes the tangent slope and the first friction coefficient; the third calculation formula is the ratio of the first value to the second value, the first value is the difference between 1 and the preset product value, the preset product value is the product value of the tangent slope and the first friction coefficient, and the second value is the sum of the first friction coefficient and the second friction coefficient.

[0053] In this embodiment, the corresponding relationship between the tangent point slope and other limit parameters in the limiter parameters can be expressed as: k(θ)<-1*u 1 , or, 0<k(θ)<(1-u 1 *u2 ) / (u 1 +u 2 ), where k(θ) is the slope of the tangent point of k(θ), and u 1 is the first friction coefficient, u 2 is the second friction coefficient, (1-u 1 *u 2 ) / (u 1 +u 2 ) is the preset ratio.

[0054] Further, under this corresponding relationship, the mapping relationship of the tangential force of the limiter along the center curve can be determined as a first relationship, the first relationship includes a mapping relationship between a first calculation formula and a second calculation formula; the first calculation formula includes the pressure of the limiter spring, the spring elastic coefficient and the compression of the limiter spring; the second calculation formula includes the difference between the third calculation formula and the second friction coefficient; the third calculation formula includes the tangent point slope and the first friction coefficient; the third calculation formula is a ratio of the first value to the second value, the first value is the difference between 1 and a preset product value, the preset product value is the product value of the tangent point slope and the first friction coefficient, and the second value is the sum of the first friction coefficient and the second friction coefficient. Specifically, the first relationship can be:

[0055]

[0056] In the formula, F x is the tangential force, F 0 is the pressure of the limiter spring, k s is the spring elastic coefficient, Δh is the limiter spring compression, F 0 +k s Δh is the first calculation formula, (1-k(θ)*u 1 ) / (k(θ)+u 1 )- u 2 is the second calculation formula, (1-k(θ)*u 1 ) / (k(θ)+u 1 ) is the third calculation formula, 1-k(θ)*u 1 is the first value, k(θ)+u 1 is the second value.

[0057] In this embodiment, the mapping relationship of the tangential force can be determined as a first relationship based on the corresponding relationship that the absolute value of the tangent point slope is greater than the absolute value of the first friction coefficient, or the tangent point slope is greater than zero and less than a preset ratio. Since the determined first relationship is relatively simple, the tangential force can be quickly calculated based on the first relationship, and then the door torque and door closing assist energy can be quickly determined based on the tangential force, thereby improving the efficiency of determining the door limit parameters.

[0058] The second type, in one embodiment, the above S301 also includes: if the above corresponding relationship is that the absolute value of the tangent slope is greater than zero and less than the absolute value of the first friction coefficient, then the mapping relationship is determined to be a second relationship, and the second relationship includes the mapping relationship between the fourth calculation formula and the fifth calculation formula; the fourth calculation formula includes the pressure, spring elastic coefficient and compression of the limiter spring; the fifth calculation formula includes the sum of the sixth calculation formula and the second friction coefficient; the sixth calculation formula includes the tangent slope and the first friction coefficient; the sixth calculation formula includes the ratio of the third value to the fourth value, the third value is the difference between 1 and the preset product value, the preset product value is the product value of the tangent slope and the first friction coefficient, and the fourth value is the sum of the first friction coefficient and the second friction coefficient.

[0059] In this embodiment, the corresponding relationship between the tangent point slope and other limit parameters in the limiter parameters can be expressed as: -1*u 1 <k(θ)<0, where k(θ) is the slope of the tangent point, u 1 is the first friction coefficient.

[0060] Further, under this corresponding relationship, it can be determined that the mapping relationship of the tangential force of the limiter along the center curve is a second relationship, and the second relationship includes the mapping relationship between the fourth calculation formula and the fifth calculation formula; the fourth calculation formula includes the pressure of the limiter spring, the spring elastic coefficient and the compression of the limiter spring; the fifth calculation formula includes the sum between the sixth calculation formula and the second friction coefficient; the sixth calculation formula includes the tangent point slope and the first friction coefficient; the sixth calculation formula is the ratio of the third value to the fourth value, the third value is the difference between 1 and the preset product value, the preset product value is the product value of the tangent point slope and the first friction coefficient, and the fourth value is the sum of the first friction coefficient and the second friction coefficient. Specifically, the second relationship can be:

[0061]

[0062] In the formula, F x is the tangential force, F 0 is the pressure of the limiter spring, k s is the spring elastic coefficient, Δh is the limiter spring compression, F 0 +k s Δh is the fourth calculation formula, (1-k(θ)*u 1 ) / (k(θ)+u 1 )-u 2 is the fifth calculation formula, (1-k(θ)*u 1 ) / (k(θ)+u 1 ) is the sixth calculation formula, 1-k(θ)*u 1 is the third value, k(θ)+u 1 The fourth value.

[0063] In this embodiment, the mapping relationship of the tangential force can be determined as a second relationship based on the corresponding relationship that the absolute value of the tangent point slope is greater than zero and less than the absolute value of the first friction coefficient. Since the determined second relationship is relatively simple, the tangential force can be quickly calculated according to the second relationship, and then the door torque and door closing assist energy can be quickly determined according to the tangential force, thereby improving the efficiency of determining the door limit parameters.

[0064] Third, in one embodiment, the above S301 further includes: if the above corresponding relationship is that the absolute value of the tangent point slope is equal to the absolute value of the first friction coefficient, then the mapping relationship is determined to be a third relationship, and the third relationship is that the tangential force is equal to zero.

[0065] In this embodiment, the corresponding relationship between the tangent point slope and other limit parameters in the limiter parameters can be expressed as: k(θ)<-1*u 1 , where k(θ) is the slope of the tangent point, u 1 is the first friction coefficient.

[0066] Further, under this corresponding relationship, the mapping relationship of the tangential force of the stopper along the center curve can be determined as a third relationship. Specifically, the third relationship can be: F x =0, where F x is the tangential force.

[0067] In this embodiment, according to the corresponding relationship that the absolute value of the slope of the tangent point is equal to the absolute value of the first friction coefficient, it is possible to quickly determine that the tangential force is equal to zero, so that the door torque and the door closing assist energy can be quickly determined based on the tangential force, thereby improving the efficiency of determining the door limit parameters.

[0068] The fourth type, in one embodiment, the above S301 also includes: if the above corresponding relationship is that the slope of the tangent point is equal to zero, then the mapping relationship is determined to be a fourth relationship, and the fourth relationship includes the mapping relationship between the first friction coefficient and the seventh calculation formula; the seventh calculation formula includes the pressure of the limiter spring, the spring elastic coefficient and the compression of the limiter spring.

[0069] In this embodiment, the corresponding relationship between the tangent point slope and other limit parameters in the limiter parameters can be expressed as: k(θ)=0, where k(θ) is the tangent point slope.

[0070] Further, under this corresponding relationship, the mapping relationship of the tangential force of the limiter along the center curve can be determined as a fourth relationship, and the fourth relationship includes the mapping relationship between the first friction coefficient and the seventh calculation formula; the seventh calculation formula includes the pressure of the limiter spring, the spring elastic coefficient and the compression of the limiter spring. Specifically, the fourth relationship can be:

[0071] F x =u 1 *(F 0 +k s Δh)

[0072] In the formula, F x is the tangential force, F 0 is the pressure of the limiter spring, k s is the spring elastic coefficient, Δh is the limiter spring compression, (F 0 +k s Δh) is the seventh calculation formula.

[0073] It should be noted that there is another possible situation, that is, the corresponding relationship between the above-mentioned tangent point slope and other limit parameters in the limiter parameters can also be that the tangent point slope is greater than the above-mentioned preset ratio, that is, k(θ)>(1-u 1 *u 2 ) / (u 1 +u 2 ), further, under this corresponding relationship, it can be determined that the mapping relationship of the tangential force of the limiter along the center curve is unsolvable, that is, the tangential force of the limiter along the center curve is infinite.

[0074] In this embodiment, according to the corresponding relationship that the slope of the tangent point is equal to zero, the mapping relationship of the tangential force can be determined as the fourth relationship. Since the determined fourth relationship is relatively simple, the tangential force can be quickly calculated according to the fourth relationship, and then the door torque and door closing assist energy can be quickly determined according to the tangential force, thereby improving the efficiency of determining the door limit parameters.

[0075] The detailed process of obtaining the door torque and the door closing assist energy according to the equivalent force arm and the tangential force is described below. Figure 5 As shown, the above S203 includes:

[0076] S401, determining the torque of the limiter on the door according to the equivalent force arm and the tangential force.

[0077] It is understandable that the function of the door stopper is to limit some special positions of the door, so the door stopper needs to limit a certain door torque. Since the position of the slider is different when the door is opened to different angles, the force degree of the slider at different positions is also different, so the equivalent arm and tangential force of the stopper are also different, and the difference in the equivalent arm and tangential force will cause the door torque to change.

[0078] In this embodiment, the product of the relationship between the tangential force and the equivalent force arm can be calculated, and the product value is determined as the moment of the stopper on the door. For example, if the tangential force is f x (θ), the equivalent force arm is d(θ), then according to the formula T(θ) = f x (θ)·d(θ), and we can get the torque T(θ) of the limiter on the door.

[0079] S402, integrating the torque with the target angle as the upper limit of integration to obtain the door closing assisting energy.

[0080] It is understandable that during the door opening process, the tangential force in the tangential direction of the door rotation direction changes with the door opening angle. Therefore, the torque can be integrated according to the door opening angle to obtain the door closing assist energy.

[0081] In this embodiment, the torque can be integrated with the angle of zero as the lower limit of integration and the target angle of the door opening as the upper limit of integration. That is, [0, θ] is divided into n continuous intervals [θ i ,θ i+1 ],0=θ0<θ 1 <θ n-1 <θ n , the door closing assist energy is obtained by integrating the torque of the limiter on the door. Specifically, the door closing assist energy can be obtained by the following formula:

[0082]

[0083] Where Q(θ) is the closing energy.

[0084] In this embodiment, the torque of the limiter on the door is determined based on the equivalent force arm and the tangential force, and the torque is integrated with the target angle as the upper limit of integration to obtain the door-assisting energy. Since the door torque can be obtained according to a simple calculation formula, the door-assisting energy can be quickly obtained by integrating the door torque, thereby improving the efficiency of obtaining the door-assisting energy.

[0085] To facilitate the understanding of those skilled in the art, the method for determining the door limit parameters provided by the present application is described in detail below. The method may include:

[0086] S1, obtain the limiter parameters of the door when the door opening angle is the target angle, the limiter parameters include the tangent slope of the contact point between the slider and the limiter arm, the compression amount of the limiter spring, the first friction coefficient between the slider and the limiter arm, the second friction coefficient between the slider and the limiter box, the pressure of the limiter spring, and the spring elastic coefficient.

[0087] S2, determining the mapping relationship of the tangential force according to the corresponding relationship between the tangent point slope and other limit parameters in the limiter parameters.

[0088] S3, if the corresponding relationship is that the absolute value of the tangent slope is greater than the absolute value of the first friction coefficient, or the tangent slope is greater than zero and less than the preset ratio, then the mapping relationship is determined to be a first relationship, and the first relationship includes a mapping relationship between a first calculation formula and a second calculation formula; the first calculation formula includes the pressure, spring elastic coefficient and compression of the limiter spring; the second calculation formula includes the difference between the third calculation formula and the second friction coefficient; the third calculation formula includes the tangent slope and the first friction coefficient; the third calculation formula is the ratio of the first value to the second value, the first value is the difference between 1 and the preset product value, the preset product value is the product value of the tangent slope and the first friction coefficient, and the second value is the sum of the first friction coefficient and the second friction coefficient.

[0089] S4, if the corresponding relationship is that the absolute value of the tangent slope is greater than zero and less than the absolute value of the first friction coefficient, then the mapping relationship is determined to be the second relationship, and the second relationship includes the mapping relationship between the fourth calculation formula and the fifth calculation formula; the fourth calculation formula includes the pressure, spring elastic coefficient and compression of the limiter spring; the fifth calculation formula includes the sum of the sixth calculation formula and the second friction coefficient; the sixth calculation formula includes the tangent slope and the first friction coefficient; the sixth calculation formula includes the ratio of the third value to the fourth value, the third value is the difference between 1 and the preset product value, the preset product value is the product value of the tangent slope and the first friction coefficient, and the fourth value is the sum of the first friction coefficient and the second friction coefficient.

[0090] S5, if the corresponding relationship is that the absolute value of the slope of the tangent point is equal to the absolute value of the first friction coefficient, then the mapping relationship is determined to be a third relationship, and the third relationship is that the tangential force is equal to zero.

[0091] S6, if the corresponding relationship is that the slope of the tangent point is equal to zero, then the mapping relationship is determined to be the fourth relationship, which includes the mapping relationship between the first friction coefficient and the seventh calculation formula; the seventh calculation formula includes the pressure of the limiter spring, the spring elastic coefficient and the compression of the limiter spring.

[0092] S7, determining the tangential force of the door stopper along the center curve according to the stopper parameters and the mapping relationship.

[0093] S8, determine the torque of the limiter on the door based on the equivalent force arm and the tangential force.

[0094] S9, integrating the torque with the target angle as the upper limit of integration to obtain the door closing assisting energy.

[0095] S10, obtaining door limit parameters according to the torque of the limiter on the door and the door closing assist energy.

[0096] It should be noted that for the description in the above S1-S10, reference may be made to the relevant description in the above embodiment, and the effects are similar, which will not be repeated in this embodiment.

[0097] It should be understood that, although the various steps in the above flowchart are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear description in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the above flowchart may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0098] In one embodiment, Figure 6 As shown, a device for determining door limit parameters is provided, comprising: a first acquisition module 10, a determination module 11 and a second acquisition module 12, wherein:

[0099] The first acquisition module 10 is used to acquire the door stopper parameters when the door opening angle is the target angle.

[0100] The determination module 11 is used to determine the tangential force of the door stopper along the center curve according to the stopper parameters.

[0101] The second acquisition module 12 is used to obtain the torque of the limiter on the door and the door closing assist energy according to the equivalent force arm and tangential force of the limiter; the equivalent force arm is the equivalent force arm corresponding to the engagement point between the limit arm of the limiter and the slider when the door opening angle is the target angle.

[0102] The device for determining the door limit parameters provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0103] In one embodiment, the limiter parameters include the tangent point slope of the contact point between the slider and the limiter arm, such as Figure 6 As shown, the above-mentioned determination module 11 includes: a first determination unit 111 and a second determination unit 112, wherein:

[0104] The first determining unit 111 is used to determine the mapping relationship of the tangential force according to the corresponding relationship between the tangent point slope and other limit parameters in the limiter parameters.

[0105] The second determining unit 112 is used to determine the tangential force of the door stopper along the center curve according to the stopper parameters and the mapping relationship.

[0106] Optionally, the limiter parameters also include the limiter spring compression, the first friction coefficient between the slider and the limiter arm, the second friction coefficient between the slider and the limiter box, the pressure of the limiter spring, and the spring elastic coefficient.

[0107] The device for determining the door limit parameters provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0108] In one embodiment, please continue to refer to Figure 7 The above-mentioned first determination unit 111 is specifically used for: if the corresponding relationship is that the absolute value of the tangent slope is greater than the absolute value of the first friction coefficient, or the tangent slope is greater than zero and less than a preset ratio, then the mapping relationship is determined to be a first relationship, and the first relationship includes a mapping relationship between a first calculation formula and a second calculation formula; the first calculation formula includes the pressure, spring elastic coefficient and compression of the limiter spring; the second calculation formula includes the difference between the third calculation formula and the second friction coefficient; the third calculation formula includes the tangent slope and the first friction coefficient; the third calculation formula includes the ratio of the first value to the second value, the first value is the difference between 1 and the preset product value, the preset product value is the product value of the tangent slope and the first friction coefficient, and the second value is the sum of the first friction coefficient and the second friction coefficient.

[0109] The device for determining the door limit parameters provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0110] In one embodiment, please continue to refer to Figure 7 The above-mentioned first determination unit 111 is specifically used for: if the absolute value of the tangent point slope is greater than zero and less than the absolute value of the first friction coefficient, then the mapping relationship is determined to be a second relationship, and the second relationship includes the mapping relationship between the fourth calculation formula and the fifth calculation formula; the fourth calculation formula includes the pressure, spring elastic coefficient and compression of the limiter spring; the fifth calculation formula includes the sum of the sixth calculation formula and the second friction coefficient; the sixth calculation formula includes the tangent point slope and the first friction coefficient; the sixth calculation formula includes the ratio of the third value to the fourth value, the third value is the difference between 1 and the preset product value, the preset product value is the product value of the tangent point slope and the first friction coefficient, and the fourth value is the sum of the first friction coefficient and the second friction coefficient.

[0111] The device for determining the door limit parameters provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0112] In one embodiment, please continue to refer to Figure 7 The first determination unit 111 is specifically used for: if the absolute value of the slope of the tangent point is equal to the absolute value of the first friction coefficient, then determining the mapping relationship as a third relationship, and the third relationship is that the tangential force is equal to zero.

[0113] The device for determining the door limit parameters provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0114] In one embodiment, please continue to refer to Figure 7 The above-mentioned first determination unit 111 is specifically used for: if the slope of the tangent point is equal to zero, then determining the mapping relationship as a fourth relationship, the fourth relationship includes the mapping relationship between the first friction coefficient and the seventh calculation formula; the seventh calculation formula includes the pressure of the limiter spring, the spring elastic coefficient and the compression of the limiter spring.

[0115] The device for determining the door limit parameters provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0116] In one embodiment, please continue to refer to Figure 7 The second acquisition module 12 includes a third determination module 121 and an acquisition unit 122, wherein:

[0117] The third determination module 121 is used to determine the torque of the limiter on the door according to the equivalent force arm and the tangential force.

[0118] The acquisition unit 122 is used to integrate the torque with the target angle as the upper limit of integration to obtain the door closing assisting energy.

[0119] The device for determining the door limit parameters provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0120] The specific definition of the door limit parameter determination device can refer to the definition of the door limit parameter determination method in the above text, which will not be repeated here. Each module in the above-mentioned door limit parameter determination device can be implemented in whole or in part by software, hardware and their combination. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0121] Figure 81 is a block diagram of a computer device 1300 according to an exemplary embodiment. The computer device 1300 may include one or more of the following components: a processing component 1302, a memory 1304, a power component 1306, a multimedia component 1308, an audio component 1310, an input / output (I / O) interface 1312, a sensor component 1314, and a communication component 1316. The memory stores a computer program or instruction running on the processor.

[0122] The processing component 1302 generally controls the overall operation of the computer device 1300, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 1302 may include one or more processors 1320 to execute instructions to complete all or part of the steps of the above method. In addition, the processing component 1302 may include one or more modules to facilitate the interaction between the processing component 1302 and other components. For example, the processing component 1302 may include a multimedia module to facilitate the interaction between the multimedia component 1308 and the processing component 1302.

[0123] The memory 1304 is configured to store various types of data to support the operation of the computer device 1300. Examples of such data include instructions for any application or method operating on the computer device 1300, contact data, phone book data, messages, pictures, videos, etc. The memory 1304 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0124] The power supply component 1306 provides power to the various components of the computer device 1300. The power supply component 1306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the computer device 1300.

[0125] The multimedia component 1308 includes a touch screen that provides an output interface between the computer device 1300 and the user. In some embodiments, the touch screen may include a liquid crystal display (LCD) and a touch panel (TP). The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor can not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 1308 includes a front camera and / or a rear camera. When the computer device 1300 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have a focal length and optical zoom capability.

[0126] The audio component 1310 is configured to output and / or input audio signals. For example, the audio component 1310 includes a microphone (MIC), and when the computer device 1300 is in an operation mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 1304 or sent via the communication component 1316. In some embodiments, the audio component 1310 also includes a speaker for outputting audio signals.

[0127] I / O interface 1312 provides an interface between processing component 1302 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0128] The sensor assembly 1314 includes one or more sensors for providing various aspects of status assessment for the computer device 1300. For example, the sensor assembly 1314 can detect the open / closed state of the computer device 1300, the relative positioning of components, such as the display and keypad of the computer device 1300, and the sensor assembly 1314 can also detect the position change of the computer device 1300 or a component of the computer device 1300, the presence or absence of user contact with the computer device 1300, the orientation or acceleration / deceleration of the computer device 1300, and the temperature change of the computer device 1300. The sensor assembly 1314 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 1314 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1314 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0129] The communication component 1316 is configured to facilitate wired or wireless communication between the computer device 1300 and other devices. The computer device 1300 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 1316 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1316 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0130] In an exemplary embodiment, the computer device 1300 can be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to execute the above-mentioned method for determining the door limit parameters.

[0131] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 1304 including instructions, and the instructions can be executed by a processor 1320 of a computer device 1300 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0132] In an exemplary embodiment, a computer program product is also provided, and when the computer program is executed by a processor, the above method can be implemented. The computer program product includes one or more computer instructions. When these computer instructions are loaded and executed on a computer, part or all of the above method can be implemented in whole or in part according to the process or function described in the embodiment of the present disclosure.

[0133] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in the embodiments of the present disclosure can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0134] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0135] The above-described embodiments only express several implementation methods of the embodiments of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the embodiments of the present disclosure, and these all belong to the protection scope of the embodiments of the present disclosure. Therefore, the protection scope of the patent of the embodiments of the present disclosure shall be subject to the attached claims.

Claims

1. A method for determining door limit parameters, characterized in that: The method comprises: Get the door limiter parameters when the door opening angle is the target angle; Determining the tangential force of the door stopper along the center curve according to the stopper parameters; According to the equivalent force arm of the limiter and the tangential force, the torque of the limiter on the door and the door-closing assist energy are obtained; the equivalent force arm is the equivalent force arm corresponding to the engagement point between the limit arm of the limiter and the slider when the door opening angle is the target angle.

2. The method according to claim 1, characterized in that The limiter parameters include the tangent point slope of the contact point between the slider and the limiter arm and other limiter parameters. According to the limiter parameters, the tangential force of the limiter of the door along the center curve is determined, including: Determine the mapping relationship of the tangential force according to the corresponding relationship between the tangent point slope and other limit parameters in the limiter parameters; The tangential force of the door stopper along the center curve is determined according to the stopper parameter and the mapping relationship.

3. The method according to claim 2, characterized in that The other limit parameters include the compression amount of the limiter spring, the first friction coefficient between the slider and the limiter arm, the second friction coefficient between the slider and the limiter box, the pressure of the limiter spring, and the spring elastic coefficient.

4. The method according to claim 3, characterized in that: The determining the mapping relationship of the tangential force according to the corresponding relationship between the tangent point slope and other limit parameters in the limiter parameters includes: If the corresponding relationship is that the absolute value of the tangent slope is greater than the absolute value of the first friction coefficient, or the tangent slope is greater than zero and less than a preset ratio, then the mapping relationship is determined to be a first relationship, and the first relationship includes a mapping relationship between a first calculation formula and a second calculation formula; the first calculation formula includes the pressure of the limiter spring, the spring elastic coefficient and the compression of the limiter spring; the second calculation formula includes the difference between the third calculation formula and the second friction coefficient; the third calculation formula includes the tangent slope and the first friction coefficient; the third calculation formula is the ratio of the first value to the second value, the first value is the difference between 1 and a preset product value, the preset product value is the product value of the tangent slope and the first friction coefficient, and the second value is the sum of the first friction coefficient and the second friction coefficient.

5. The method according to claim 3, characterized in that: The determining the mapping relationship of the tangential force according to the corresponding relationship between the tangent point slope and other limit parameters in the limiter parameters includes: If the corresponding relationship is that the absolute value of the tangent slope is greater than zero and less than the absolute value of the first friction coefficient, the mapping relationship is determined to be the second relationship, and the second relationship includes the mapping relationship between the fourth calculation formula and the fifth calculation formula; the fourth calculation formula includes the pressure of the limiter spring, the spring elastic coefficient and the compression of the limiter spring; the fifth calculation formula includes the sum of the sixth calculation formula and the second friction coefficient; the sixth calculation formula includes the tangent slope and the first friction coefficient; the sixth calculation formula is the ratio of the third value to the fourth value, the third value is the difference between 1 and the preset product value, the preset product value is the product value of the tangent slope and the first friction coefficient, and the fourth value is the sum of the first friction coefficient and the second friction coefficient.

6. The method according to claim 3, characterized in that The determining the mapping relationship of the tangential force according to the corresponding relationship between the tangent point slope and other limit parameters in the limiter parameters includes: If the corresponding relationship is that the absolute value of the tangent point slope is equal to the absolute value of the first friction coefficient, then the mapping relationship is determined to be a third relationship, and the third relationship is that the tangential force is equal to zero.

7. The method according to claim 3, characterized in that The determining the mapping relationship of the tangential force according to the corresponding relationship between the tangent point slope and other limit parameters in the limiter parameters includes: If the corresponding relationship is that the slope of the tangent point is equal to zero, then the mapping relationship is determined to be a fourth relationship, and the fourth relationship includes the mapping relationship between the first friction coefficient and the seventh calculation formula; the seventh calculation formula includes the pressure of the limiter spring, the spring elastic coefficient and the compression of the limiter spring.

8. The method according to any one of claims 1 to 7, characterized in that: The step of obtaining the torque of the limiter on the door and the door-closing assisting energy according to the equivalent effective arm and the tangential force corresponding to the meshing position of the limiter arm and the slider when the door opening angle is the target angle comprises: Determining the torque of the limiter on the door according to the equivalent force arm and the tangential force; The torque is integrated with the target angle as the upper limit of integration to obtain the door closing assisting energy.

9. A device for determining door limit parameters, characterized in that: The device comprises: A first acquisition module is used to acquire the door stopper parameters when the door opening angle is the target angle; A determination module, used to determine the tangential force of the door stopper along the center curve according to the stopper parameters; The second acquisition module is used to obtain the torque of the limiter on the vehicle door and the door closing assist energy according to the equivalent force arm of the limiter and the tangential force; the equivalent force arm is the equivalent force arm corresponding to the engagement point between the limit arm of the limiter and the slider when the opening angle of the vehicle door is the target angle.

10. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 8 are implemented.

11. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 8 are implemented.

12. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 8 are implemented.

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