System and method for determining mass of balance block of outward-opening handle and storage medium
By designing a system that includes parameter setting, parameter processing and simulation verification modules, the risk of failure and high development costs caused by relying on experience in the design of the external handle balance block is solved, and higher design accuracy and shorter development cycle are achieved, ensuring the best quality and safety of the external handle balance block.
Patent Information
- Application Number
- CN202411506584.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-03-04
AI Technical Summary
When designing the balance block of the open handle, the prior art mainly relies on experience settings and lacks accurate calculation methods, resulting in a high risk of design failure and multiple test verifications increase development costs and development cycles.
Design a system, including parameter setting module, parameter processing module and simulation verification module, by accurately setting the parameters of the opening handle, scientifically calculate the quality of the balance block, and conduct simulation collision verification in a virtual environment to determine whether the quality of the balance block meets the requirements.
It improves the accuracy of the design, reduces the risk of design failure and multiple test verifications, significantly reduces development costs, shortens development cycle, and ensures that the quality of the open handle balance block is always in the best state, meeting operating comfort and safety requirements.
Smart Images
Figure CN119557996A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of vehicle design, and in particular to a system, method and storage medium for determining the mass of a balancing block of an outward-opening handle. Background Art
[0002] The balance block of the outside handle is an important component in the door opening system. During the use of the door opening system, the balance block of the outside handle mainly cooperates with the outside handle and the door lock and other components. When the outside handle is operated to open the door, the balance block plays the role of adjusting the handle strength and maintaining the stability of the handle. When external force acts on the outside handle, the balance block will adjust its position and force accordingly according to the movement state and force condition of the handle to ensure smooth and stable operation of the outside handle. The balance block can make the operation of the outside handle more comfortable, making it easier for the driver and passengers to open the door. In addition, the balance block is also one of the main anti-theft devices, which can prevent illegal opening of the door when the vehicle is locked; during driving and collision, the balance block works with components such as the door lock to ensure that the door is locked and the safety of the passengers.
[0003] In conventional designs, the external handle balance weight is usually initially set to a certain value based on experience. Specifically, the designer will make a preliminary estimate of the weight, size, elastic coefficient and other parameters of the external handle balance weight based on previous design experience and the parameters of similar models, and set an initial value. Then, in actual collision tests, the performance of the external handle balance weight in collision situations is observed, and this value is corrected based on the test results.
[0004] The above design method has the following obvious defects: 1. High risk of non-compliance with design standards: Since the initial values are mainly set based on experience and there is a lack of accurate calculation methods, it is very likely that the designed balance block will not meet the safety requirements or operating comfort requirements in actual use, resulting in non-compliance with the design standards. 2. Multiple test verifications increase development costs: In order to correct the values set by experience, multiple actual collision tests are required. Each test requires a lot of time, manpower and material resources, which undoubtedly greatly increases the development cost. Moreover, multiple tests may also extend the product development cycle and affect the vehicle's time to market. Summary of the invention
[0005] The purpose of the present invention is to solve the shortcomings of the above-mentioned background technology and provide a system, method and storage medium for determining the mass of the balance block of an outward-opening handle which has high reliability, can effectively improve the qualified rate of collision test and has low cost.
[0006] To achieve this purpose, the system designed by the present invention to determine the mass of the outward-opening handle balance block includes a parameter setting module, a parameter processing module and a simulation verification module; the parameter setting module is used to set the outward-opening handle parameters; the parameter processing module is used to calculate the mass of the outward-opening handle balance block according to the outward-opening handle parameters; the simulation verification module is used to generate an outward-opening handle simulation collision model according to the outward-opening handle parameters and the mass of the outward-opening handle balance block, and determine whether the mass of the outward-opening handle balance block meets the outward-opening handle simulation collision requirements.
[0007] The parameter setting module can comprehensively collect various key parameters of the external handle and provide accurate basic data for subsequent calculations. The parameter processing module can calculate based on these accurate parameters to obtain a more scientific and reasonable value of the mass of the external handle balance block. Compared with the traditional method of setting values based on experience, it greatly improves the accuracy of the design and reduces the probability of safety risks and uncomfortable operation problems caused by unreasonable design. The traditional design method requires multiple actual collision tests to correct the mass value of the balance block, and each test consumes a lot of resources. The simulation verification module in the system can perform multiple simulated collision tests in a virtual environment to quickly determine whether the mass of the balance block meets the requirements. This can greatly reduce the number of actual collision tests, thereby significantly reducing development costs, including the costs of test materials, equipment use, and manpower investment. Through simulation verification, designers can test and optimize different parameter combinations in a short time, find problems in time and make adjustments. Compared with the long process of waiting for actual test results in the traditional method, this system can greatly shorten the product development cycle, enable cars to be brought to market faster, and improve the market competitiveness of enterprises. The precise calculation and strict verification of the system can ensure that the quality of the balance block of the external handle is always in the best condition, which not only meets the requirements of operating comfort, but also ensures the safety of the door in emergency situations such as collisions. This helps to improve the quality of the entire automotive product, provide consumers with a more reliable and safe driving experience, and enhance consumers' trust and satisfaction with the automotive brand. The application of this system represents the innovation of the automotive manufacturing industry in design methods. It provides a new idea and tool for the design of automotive parts and promotes the continuous advancement of industry technology. At the same time, it also provides a reference for the design and optimization of other similar parts, promoting technological innovation and development in the entire automotive manufacturing field.
[0008] Furthermore, the parameter setting module includes a longitudinal outward opening handle parameter setting module and a transverse outward opening handle parameter setting module; the parameter processing module includes a longitudinal outward opening handle parameter processing module for calculating the mass of the longitudinal outward opening handle balance block according to the longitudinal outward opening handle parameters; and a transverse outward opening handle parameter processing module for calculating the mass of the transverse outward opening handle balance block according to the transverse outward opening handle parameters; the simulation verification module includes a longitudinal outward opening handle simulation verification module for generating a longitudinal outward opening handle simulation collision model according to the longitudinal outward opening handle parameters and the mass of the longitudinal outward opening handle balance block, and judging whether the mass of the longitudinal outward opening handle balance block meets the longitudinal outward opening handle simulation collision requirements; and a transverse outward opening handle simulation verification module for generating a transverse outward opening handle simulation collision model according to the transverse outward opening handle parameters and the mass of the transverse outward opening handle balance block, and judging whether the mass of the transverse outward opening handle balance block meets the transverse outward opening handle simulation collision requirements.
[0009] Dividing the parameter setting module into a longitudinal outward opening handle parameter setting module and a transverse outward opening handle parameter setting module can more accurately collect parameters for different types of outward opening handles. Outward opening handles placed in different ways may differ in size, installation position, force conditions, etc. Setting parameters separately can ensure the accuracy of subsequent calculations and verifications to adapt to different vehicle models and design requirements. The longitudinal outward opening handle parameter processing module and the transverse outward opening handle parameter processing module calculate the mass of the balance block according to the corresponding handle parameters, which can fully consider the characteristics and mechanical requirements of the longitudinal and transverse outward opening handles. The mass of the balance block obtained in this way is more in line with the actual use situation, improving the reliability and safety of the product. Through independent calculation of different types of handles, specific optimization designs can be made for longitudinal and transverse outward opening handles. For example, according to different operating habits and space limitations, the mass and size of the balance block can be adjusted to achieve better operating comfort and space utilization. The longitudinal outward opening handle simulation verification module and the transverse outward opening handle simulation verification module generate corresponding simulation collision models respectively, and judge whether the mass of the balance block meets the requirements. This allows for more detailed verification of different types of outward opening handles, ensuring that the balance block can play its due role in various actual usage scenarios, thereby improving the overall performance of the door opening system. Independent verification of different types of handles can promptly identify and resolve problems that may exist with specific types of handles, reducing the risk of the product in actual use. For example, if a longitudinal outward opening handle has problems under certain collision conditions, the mass of its balance block or other parameters can be adjusted in a targeted manner without affecting the design of the transverse outward opening handle. In summary, the subdivision of the parameter setting, processing, and simulation verification modules for longitudinal and transverse outward opening handles can improve the professionalism, accuracy, and adaptability of the system, and provide a strong guarantee for the design of higher-quality balance blocks for outward opening handles.
[0010] Furthermore, the method for calculating the mass of the longitudinal outward-opening handle balance block based on the longitudinal outward-opening handle parameters includes: performing a torque balance calculation on the longitudinal outward-opening handle on the collision side of the vehicle body to obtain the minimum value of the mass of the longitudinal outward-opening handle balance block; and performing a torque balance calculation on the longitudinal outward-opening handle on the non-collision side of the vehicle body to obtain the maximum value of the mass of the longitudinal outward-opening handle balance block.
[0011] When the longitudinal outward opening handle is on the collision side of the vehicle body, it is necessary to consider the various forces and moments that the handle is subjected to in the event of a collision. The minimum value of the balance block mass is obtained through moment balance calculation, which means that under the most unfavorable collision conditions, the outward opening handle system can remain stable and not accidentally open, while reducing the mass of the balance block as much as possible to achieve lightweight design and reduce costs. The determination of this minimum value provides a safety bottom line for the design to ensure the safety of the door in extreme situations. When the longitudinal outward opening handle is on the non-collision side of the vehicle body, although the direct impact of the collision is small, it is still necessary to consider various forces and moments in daily use, as well as possible unexpected situations. The maximum value of the balance block mass is obtained through moment balance calculation, which provides an upper limit reference for the design. Selecting the appropriate balance block mass within this range can ensure that the outward opening handle can maintain good operating performance and stability in normal use and some more special situations. At the same time, the determination of the maximum value also helps to avoid operational inconvenience or other problems caused by excessive balance block mass. In general, this method of calculating the torque balance of the longitudinal outward-opening handles on the collision side and non-collision side of the vehicle body respectively can more comprehensively and accurately determine the mass range of the longitudinal outward-opening handle balance block, providing a scientific basis for designing a safe, reliable and comfortable-to-operate outward-opening handle system.
[0012] Furthermore, the minimum value of the mass of the vertically mounted outward-opening handle balance block is calculated as follows:
[0013] Among them, m 2 is the minimum value of the balance block mass of the longitudinally mounted outward opening handle, m 1 is the mass of the vertically mounted outward opening handle, a is the magnitude of the inertial force, α is the angle between the inertial force in the first acceleration direction and the horizontal plane, L 1 is the distance from the center of mass of the handle to the rotation axis of the handle, β is the angle between the inertial force in the second acceleration direction and the horizontal plane, L 2 L is the distance from the handle rotation axis to the contact point between the longitudinal handle hook and the longitudinal balance block. 3 is the distance from the contact point between the longitudinal handle hook and the longitudinal balance block to the rotation axis of the longitudinal balance block, θ is L 3 Angle with horizontal plane, T spg is the door lock spring torque, L 2 F is the distance from the handle rotation axis to the contact point between the longitudinal handle hook and the longitudinal balance block.lac is the force on the door lock, K is the torsion constant of the door lock spring, L 4 is the distance from the rotation axis of the longitudinal balance block to the center of mass of the balance block, δ is L 4 The angle with the first acceleration direction.
[0014] Furthermore, the maximum value of the mass of the vertically mounted outward-opening handle balance block is calculated as follows:
[0015] Among them, m 2 is the minimum value of the balance block mass of the longitudinally mounted outward opening handle, m 1 is the mass of the vertically mounted outward opening handle, a is the magnitude of the inertial force, α is the angle between the inertial force in the first acceleration direction and the horizontal plane, L 1 is the distance from the center of mass of the handle to the rotation axis of the handle, β is the angle between the inertial force in the second acceleration direction and the horizontal plane, L 2 L is the distance from the handle rotation axis to the contact point between the longitudinal handle hook and the longitudinal balance block. 3 is the distance from the contact point between the longitudinal handle hook and the longitudinal balance block to the rotation axis of the longitudinal balance block, θ is L 3 Angle with horizontal plane, T spg is the door lock spring torque, L 2 F is the distance from the handle rotation axis to the contact point between the longitudinal handle hook and the longitudinal balance block. lac is the force on the door lock, K is the torsion constant of the door lock spring, L 4 is the distance from the rotation axis of the longitudinal balance block to the center of mass of the balance block, δ is L 4 The angle with the first acceleration direction.
[0016] Furthermore, the method for calculating the mass of the transverse outward-opening handle balance block based on the transverse outward-opening handle parameters includes: performing a torque balance calculation on the transverse outward-opening handle on the collision side of the vehicle body to obtain the minimum value of the mass of the transverse outward-opening handle balance block; and performing a torque balance calculation on the transverse outward-opening handle on the non-collision side of the vehicle body to obtain the maximum value of the mass of the transverse outward-opening handle balance block.
[0017] Similar to the longitudinal outward opening handle, the method of moment balance calculation based on different positions of the vehicle body is also used to determine the range of the mass of the balance block for the transverse outward opening handle. This is because the forces and moments on the collision side and non-collision side of the vehicle body are different for both longitudinal and transverse outward opening handles, and analysis and calculation need to be performed separately to ensure that the mass of the balance block can meet the use requirements in different situations. When the transverse outward opening handle is on the collision side of the vehicle body, the minimum value of the mass of the balance block is obtained by moment balance calculation. This is to ensure that the transverse outward opening handle system can be as lightweight as possible under the premise of ensuring safety in extreme cases such as collision. The determination of the minimum value provides a critical value for the design, ensuring that the outward opening handle will not be accidentally opened under the worst collision conditions, and the mass of the balance block will not be too large to add additional burden. For the transverse outward opening handle on the non-collision side of the vehicle body, the moment balance calculation is performed to obtain the maximum value of the mass of the balance block. This is because in daily use, although the risk of collision is relatively small, the operational stability and comfort of the outward opening handle still need to be guaranteed. The determination of the maximum value provides an upper limit reference for the design, so that when selecting the mass of the balance block, the reliability of the system can be ensured without affecting the operational performance. By performing targeted torque balance calculations on the horizontally placed outward opening handle at different positions on the vehicle body, the mass range of the balance block can be determined more scientifically and accurately. This method not only improves the accuracy and reliability of the design, but also enables optimization based on actual conditions to achieve a balance between safety and performance, providing a more effective solution for the design of the vehicle door opening system.
[0018] Furthermore, the minimum value of the mass of the horizontal outward-opening handle balance block is calculated as follows:
[0019] Among them, m 2 is the minimum value of the mass of the horizontal outward opening handle balance block, m 1 is the mass of the horizontal outward opening handle, a is the magnitude of the inertial force, α is the angle between the inertial force in the first acceleration direction and the horizontal plane, L 1 is the distance from the handle center of mass to the handle rotation axis, L 2 is the distance from the handle rotation axis to the contact point between the horizontal handle hook and the horizontal balance block, β is the angle between the inertial force in the second acceleration direction and the horizontal plane, L 3 is the distance from the center of mass of the balancing block to the axis of rotation of the balancing block, θ is L 3 Angle with horizontal plane, T spg is the door lock spring torque, L 2 F is the distance from the handle rotation axis to the contact point between the horizontal handle hook and the horizontal balance block. lac is the force on the door lock, K is the torsion constant of the door lock spring, L 4is the distance from the rotation axis of the horizontal balance block to the contact point between the horizontal balance block and the horizontal handle hook, δ is L 2 The angle between the force direction of the horizontal handle hook and the X direction of the door lock opening force and L 3 The angle between the door lock opening force in the Y direction and L 4 Angle.
[0020] Furthermore, the maximum value of the mass of the horizontal outward-opening handle balance block is calculated as follows:
[0021] Among them, m 2 is the minimum value of the mass of the horizontal outward opening handle balance block, m 1 is the mass of the horizontal outward opening handle, a is the magnitude of the inertial force, α is the angle between the inertial force in the first acceleration direction and the horizontal plane, L 1 is the distance from the handle center of mass to the handle rotation axis, L 2 is the distance from the handle rotation axis to the contact point between the horizontal handle hook and the horizontal balance block, β is the angle between the inertial force in the second acceleration direction and the horizontal plane, L 3 is the distance from the center of mass of the balancing block to the axis of rotation of the balancing block, θ is L 3 Angle with horizontal plane, T spg is the door lock spring torque, L 2 F is the distance from the handle rotation axis to the contact point between the horizontal handle hook and the horizontal balance block. lac is the force on the door lock, K is the torsion constant of the door lock spring, L 4 is the distance from the rotation axis of the horizontal balance block to the contact point between the horizontal balance block and the horizontal handle hook, δ is L 2 The angle between the force direction of the horizontal handle hook and the X direction of the door lock opening force and L 3 The angle between the door lock opening force in the Y direction and L 4 Angle.
[0022] Furthermore, a method for determining the mass of an outward-opening handle balance block based on the system for determining the mass of an outward-opening handle balance block as described above comprises the following steps: setting outward-opening handle parameters; calculating the mass of an outward-opening handle balance block according to the outward-opening handle parameters; generating a simulated collision model of the outward-opening handle according to the outward-opening handle parameters and the mass of the outward-opening handle balance block, and determining whether the mass of the outward-opening handle balance block meets the simulated collision requirements of the outward-opening handle.
[0023] By accurately setting various parameters of the external handle, such as size, shape, material properties, installation position, etc., accurate data support can be provided for subsequent calculations and verifications. Based on accurate parameters, a specific calculation method is used to comprehensively consider factors such as the mechanical properties, motion laws, and safety requirements of the external handle to obtain a suitable balance block mass value to ensure that the balance block mass can not only meet the requirements of operational comfort, but also ensure the safety of the door in emergency situations such as collisions. The simulation collision model of the external handle is generated according to the parameters of the external handle and the mass of the balance block of the external handle. Judging whether the mass of the balance block meets the requirements of the simulation collision is a verification step for the calculation results. By generating a simulation collision model, the performance of the external handle in various actual use scenarios can be simulated in a virtual environment, so as to judge whether the calculated balance block mass can meet the safety requirements. If it does not meet the requirements, it can be fed back to the previous steps for adjustment and optimization until a satisfactory result is obtained. Through precise parameter setting, scientific calculation and strict simulation verification, the accuracy of determining the mass of the balance block of the external handle can be greatly improved. Compared with the traditional empirical design method, the risk of substandard design and multiple test verification is reduced. Due to the reduction in the number of actual collision tests, the development cost is reduced. At the same time, through rapid simulation verification and optimization, the development cycle can be shortened and the market competitiveness of the product can be improved. After rigorous calculation and verification, the determined balance block mass can better adapt to various actual usage conditions, improving the reliability and safety of the door opening system. It provides consumers with a more reliable driving experience and enhances the brand credibility of the product. This method can be applied to the design requirements of different types of external opening handles and different models, and has strong versatility and adaptability. It can provide a standardized design method for automobile manufacturers to improve design efficiency and quality.
[0024] Still further, a computer-readable storage medium stores a computer program thereon, and when the computer program is executed by a processor, the method described above is implemented.
[0025] The computer-readable storage medium provides an effective storage and execution carrier for the method of determining the mass of the external handle balance block. It can save the computer program containing the above method of determining the mass of the external handle balance block so that it can be read and executed by the processor when needed. In this way, the storage medium enables this advanced design method to be applied in different computer systems, providing a convenient and efficient tool for automobile manufacturers. When the computer program is executed by the processor, the above method of determining the mass of the external handle balance block can be implemented. This means that the powerful computing power and accuracy of the computer can be used to quickly and accurately complete a series of complex tasks such as setting the parameters of the external handle, calculating the mass of the balance block, and generating and verifying the simulation collision model. Compared with traditional manual calculation and test methods, it greatly improves work efficiency and accuracy and reduces the risk of human error. The combination of storage medium and computer program provides an advanced design method for automobile manufacturers. It can more scientifically and accurately determine the mass of the external handle balance block, thereby improving the safety, practicality and comfort of the door opening system and improving the quality level of the entire automobile product. Through rapid calculation and verification, the design cycle of the external handle balance block can be shortened and the development progress of automobile products can be accelerated. It enables enterprises to respond to market demands more quickly and improve market competitiveness. This computer-based design method represents the technological development trend of the automobile manufacturing industry. It provides enterprises with more room for innovation, encourages them to continuously explore new design concepts and methods, and promotes technological progress in the entire industry.
[0026] The beneficial effect of the present invention is that by accurately setting various parameters of the external opening handle, such as size, shape, material properties, installation position, etc., accurate data support can be provided for subsequent calculation and verification. Based on accurate parameters, a specific calculation method is used to comprehensively consider factors such as the mechanical properties, motion laws and safety requirements of the external opening handle to obtain a suitable balance block mass value to ensure that the balance block mass can not only meet the requirements of operational comfort, but also ensure the safety of the door in emergency situations such as collisions. A simulation collision model of the external opening handle is generated according to the parameters of the external opening handle and the mass of the balance block of the external opening handle. Judging whether the mass of the balance block meets the requirements of the simulation collision is a verification step for the calculation result. By generating a simulation collision model, the performance of the external opening handle in various actual use scenarios can be simulated in a virtual environment, so as to judge whether the calculated balance block mass can meet the safety requirements. If the requirements are not met, it can be fed back to the previous steps for adjustment and optimization until a satisfactory result is obtained. Through accurate parameter setting, scientific calculation and strict simulation verification, the accuracy of determining the mass of the balance block of the external opening handle can be greatly improved. Compared with the traditional empirical design method, the risk of substandard design and multiple test verification is reduced. Since the number of actual collision tests is reduced, the development cost is reduced. At the same time, through rapid simulation verification and optimization, the development cycle can be shortened and the market competitiveness of the product can be improved. After rigorous calculation and verification, the determined balance block mass can better adapt to various actual usage conditions, improving the reliability and safety of the door opening system. It provides consumers with a more reliable driving experience and enhances the brand credibility of the product. This method can be applied to the design requirements of different types of external opening handles and different models, and has strong versatility and adaptability. It can provide a standardized design method for automobile manufacturers to improve design efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 A module connection diagram of a system for determining the mass of a balancing block of an outward-opening handle in the present invention;
[0028] Figure 2 It is a flow chart of the method for determining the mass of the balancing weight of the outward opening handle in the present invention;
[0029] Figure 3 It is an XY plane view of the vertically arranged outward opening handle of the present invention;
[0030] Figure 4 It is a YZ plane cross-sectional view of the longitudinally arranged outward opening handle of the present invention;
[0031] Figure 5 It is an XY plane top view of the horizontally placed outward opening handle of the present invention;
[0032] Figure 6This is a measured collision acceleration diagram of a horizontally placed outward opening handle of a certain vehicle model in the present invention;
[0033] Among them, 1—parameter setting module (1.1—parameter setting module for longitudinal outward opening handle, 1.2—parameter setting module for transverse outward opening handle), 2—parameter processing module (2.1—parameter processing module for longitudinal outward opening handle, 2.2—parameter processing module for transverse outward opening handle), 3—simulation verification module (3.1—simulation verification module for longitudinal outward opening handle, 3.2—simulation verification module for transverse outward opening handle), 4—longitudinal outward opening handle, 5—longitudinal handle hook, 6—longitudinal balancing block, 7—longitudinal balancing block rotation axis, 8—longitudinal outward opening handle base, 9—transverse outward opening handle, 10—transverse handle hook, 11—transverse balancing block, 12—transverse balancing block rotation axis, 13—transverse outward opening handle base. DETAILED DESCRIPTION
[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.
[0035] Definition of noun:
[0036] Longitudinal outward opening handle 4: A door opening handle in which the balance block is approximately parallel to the long axis of the handle, such as Figure 3 shown.
[0037] Horizontally placed external opening handle 9: A door opening handle in which the balance block is approximately perpendicular to the long axis of the handle, such as Figure 5 shown.
[0038] like Figure 1 As shown, in certain embodiments, the system designed by the present invention for determining the mass of the balance block of the outward-opening handle includes a parameter setting module 1, a parameter processing module 2 and a simulation verification module 3; the parameter setting module 1 is used to set the outward-opening handle parameters; the parameter processing module 2 is used to calculate the mass of the balance block of the outward-opening handle according to the outward-opening handle parameters; the simulation verification module 3 is used to generate an outward-opening handle simulation collision model according to the outward-opening handle parameters and the mass of the balance block of the outward-opening handle, and to determine whether the mass of the balance block of the outward-opening handle meets the simulation collision requirements of the outward-opening handle.
[0039] Embodiment 1
[0040] Based on the above embodiment, an embodiment of a parameter setting module 1 is provided:
[0041] The parameter setting module 1 comprises a parameter setting module 1.1 for a longitudinally mounted outward opening handle and a parameter setting module 1.2 for a transversely mounted outward opening handle.
[0042] Embodiment 2
[0043] Based on the first embodiment, an embodiment of a parameter processing module 2 is provided:
[0044] The parameter processing module 2 comprises a longitudinal outward opening handle parameter processing module 2.1 for calculating the mass of the longitudinal outward opening handle balance block according to the longitudinal outward opening handle parameters; and a transverse outward opening handle parameter processing module 2.2 for calculating the mass of the transverse outward opening handle balance block according to the transverse outward opening handle parameters.
[0045] Embodiment 3
[0046] Based on the second embodiment, an embodiment of a simulation verification module 3 is provided:
[0047] The simulation verification module 3 includes a longitudinal outward-opening handle simulation verification module 3.1 which generates a longitudinal outward-opening handle simulation collision model according to the longitudinal outward-opening handle parameters and the mass of the longitudinal outward-opening handle balance block, and determines whether the mass of the longitudinal outward-opening handle balance block meets the longitudinal outward-opening handle simulation collision requirements; and a transverse outward-opening handle simulation verification module 3.2 which generates a transverse outward-opening handle simulation collision model according to the transverse outward-opening handle parameters and the mass of the transverse outward-opening handle balance block, and determines whether the mass of the transverse outward-opening handle balance block meets the transverse outward-opening handle simulation collision requirements.
[0048] like Figure 2 As shown, based on the system for determining the mass of the balancing weight of the outward-opening handle in some of the above embodiments or embodiment 1 or embodiment 2 or embodiment 3, a method for determining the mass of the balancing weight of the outward-opening handle is designed, comprising the following steps:
[0049] S1. Set the parameters of the external handle;
[0050] S2. Calculate the mass of the balance block of the outward opening handle according to the outward opening handle parameters;
[0051] S3. Generate a simulation collision model of the outward opening handle according to the outward opening handle parameters and the mass of the outward opening handle balance block, and determine whether the mass of the outward opening handle balance block meets the simulation collision requirement of the outward opening handle.
[0052] Embodiment 4
[0053] Take the vertically placed outward opening handle 4 as an example for explanation:
[0054] The method for calculating the mass of the longitudinal outward opening handle balance block according to the longitudinal outward opening handle parameters includes: performing a torque balance calculation on the longitudinal outward opening handle 4 on the collision side of the vehicle body to obtain the minimum value of the mass of the longitudinal outward opening handle balance block; and performing a torque balance calculation on the longitudinal outward opening handle 4 on the non-collision side of the vehicle body to obtain the maximum value of the mass of the longitudinal outward opening handle balance block.
[0055] like Figure 3 As shown in FIG. 4 , on the collision side of the vehicle body: due to the inertial force, the longitudinal handle hook 5 will press the longitudinal balance block 6, causing it to rotate around the longitudinal balance block rotation axis 7 to open the door lock. At this time, in order to prevent the longitudinal outer opening handle 4 from opening after the collision, the torque balance is set as follows:
[0056] T 手柄 ≤T 平衡块 +T SPG +T 锁
[0057] Among them, T 手柄 is the handle torque, T 平衡块 is the balance block torque, T SPG is the door lock spring torque, T 锁 It is the door lock opening torque.
[0058] Based on the above formula, the calculation formula for the minimum value of the mass of the vertical outward-opening handle balance block is simplified as follows:
[0059] Among them, m 2 is the minimum value of the balance block mass of the longitudinally mounted outward opening handle, m 1 is the mass of the vertically placed outward opening handle 4, a is the magnitude of the inertial force, α is the angle between the inertial force in the first acceleration direction and the horizontal plane, L 1 is the distance from the center of mass of the handle to the rotation axis of the handle, β is the angle between the inertial force in the second acceleration direction and the horizontal plane, L 2 L is the distance from the handle rotation axis to the contact point between the longitudinal handle hook 5 and the longitudinal balance block 6. 3 is the distance from the contact point between the vertical handle hook 5 and the vertical balance block 6 to the vertical balance block rotation axis 7, θ is L 3 Angle with horizontal plane, L 2 F is the distance from the handle rotation axis to the contact point between the longitudinal handle hook 5 and the longitudinal balance block 6. lac is the force on the door lock, K is the torsion constant of the door lock spring, L 4 is the distance from the longitudinal balancing block rotation axis 7 to the balancing block mass center, δ is L 4 The angle with the first acceleration direction.
[0060] like Figure 3As shown in FIG. 4 , on the non-collision side of the vehicle body: due to the inertial force, the longitudinal balance block 6 rotates around the longitudinal balance block rotation axis 7, and the door lock is opened. At this time, in order to prevent the longitudinal external opening handle 4 from being opened after a collision, the torque balance is set as follows:
[0061] T 平衡块 ≤T 手柄 +T SPG +T 锁
[0062] Based on the above formula, the calculation formula for the maximum value of the mass of the vertical outward-opening handle balance block is simplified as follows:
[0063]
[0064] Embodiment 5
[0065] Take the horizontal outward opening handle 9 as an example for explanation:
[0066] The method for calculating the mass of the transverse outward opening handle balance block according to the parameters of the transverse outward opening handle includes: performing a torque balance calculation on the transverse outward opening handle 9 on the collision side of the vehicle body to obtain the minimum value of the mass of the transverse outward opening handle balance block; and performing a torque balance calculation on the transverse outward opening handle 9 on the non-collision side of the vehicle body to obtain the maximum value of the mass of the transverse outward opening handle balance block.
[0067] like Figure 5 As shown, similar to the force of the longitudinal external opening handle 4, on the collision side of the vehicle body: due to the inertial force, the transverse handle hook 10 will press the transverse balance block 11, causing it to rotate around the transverse balance block rotation axis 12 to open the door lock. At this time, in order to prevent the transverse external opening handle 9 from opening after the collision, the torque balance is set as follows:
[0068] T 手柄 ≤T 平衡块 +T SPG +T 锁
[0069] Based on the above formula, the calculation formula for the minimum value of the mass of the horizontal outward-opening handle balance block is simplified as follows:
[0070] Among them, m 2 is the minimum value of the mass of the horizontal outward opening handle balance block, m 1 is the mass of the horizontally placed outward opening handle 9, a is the magnitude of the inertial force, α is the angle between the inertial force in the first acceleration direction and the horizontal plane, L 1 is the distance from the handle center of mass to the handle rotation axis, L 2 is the distance from the handle rotation axis to the contact point between the horizontal handle hook 10 and the horizontal balance block 11, β is the angle between the inertial force in the second acceleration direction and the horizontal plane, L 3is the distance from the center of mass of the balancing block to the axis of rotation of the balancing block, θ is L 3 Angle with horizontal plane, T spg is the door lock spring torque, L 2 F is the distance from the handle rotation axis to the contact point between the horizontal handle hook 10 and the horizontal balance block 11. lac is the force on the door lock, K is the torsion constant of the door lock spring, L 4 is the distance from the horizontal balancing weight rotation axis 12 to the contact point between the horizontal balancing weight 11 and the horizontal handle hook 10, and δ is L 2 The angle between the force direction of the horizontal handle hook 10 and the door lock opening force X direction and L 3 The angle between the door lock opening force in the Y direction and L 4 Angle.
[0071] like Figure 5 As shown, similar to the force of the longitudinal external opening handle 4, on the non-collision side of the vehicle body: due to the inertial force, the longitudinal balance block 6 rotates around the longitudinal balance block rotation axis 7 to open the door lock. At this time, in order to prevent the longitudinal external opening handle 4 from being opened after a collision, the torque balance is set as follows:
[0072] T 平衡块 ≤T 手柄 +T SPG +T 锁
[0073] Based on the above formula, the calculation formula for the maximum value of the mass of the horizontal outward-opening handle balance block is simplified as follows:
[0074]
[0075] Embodiment 6
[0076] In the design of the balance block of a horizontally placed outward opening handle of a certain vehicle model, the mass m of the outward opening handle can be determined based on the shape and material definition. 1 =0.1kg, and according to the 3D digital model, the values of the following parameters can be determined respectively:
[0077] L1 L2 L3 L4 α β δ θ μ ρ 113.4 183.56 9.71 16 12.16 90 82.97 60 46.44 21.28
[0078] The torque of the spring is defined by design as T spg =81N·mm. According to the requirements, the desired inertia resistance level is set to a=80G (can be set according to actual requirements). The initial force at the door lock end can be ignored as 0, that is, F lac =0N.
[0079] Substituting the above parameters into the calculation, the results are as follows: the design mass of the balance block should be 91.47≤m2≤101.81 grams. Finally, based on the calculation results, combined with lightweight and safety considerations, the balance block of the outward-opening handle is set to 95 grams.
[0080] This model has been verified through subsequent real vehicle collision tests, and the acceleration curve of the door lock position is as follows Figure 6 As shown, the maximum acceleration reaches 58g, and the inertia resistance design definition fully meets the design requirements. There is no problem of door opening due to insufficient inertia resistance of the external opening handle.
[0081] In summary, the present invention can provide accurate data support for subsequent calculation and verification by accurately setting various parameters of the external opening handle, such as size, shape, material properties, installation position, etc. On the basis of accurate parameters, a specific calculation method is used to comprehensively consider the mechanical properties, motion laws and safety requirements of the external opening handle, and a suitable balance block mass value is obtained to ensure that the balance block mass can not only meet the requirements of operating comfort, but also ensure the safety of the door in emergency situations such as collisions. A simulation collision model of the external opening handle is generated according to the parameters of the external opening handle and the mass of the balance block of the external opening handle. Judging whether the mass of the balance block meets the requirements of the simulation collision is a verification step for the calculation results. By generating a simulation collision model, the performance of the external opening handle in various actual use scenarios can be simulated in a virtual environment, so as to judge whether the calculated balance block mass can meet the safety requirements. If the requirements are not met, it can be fed back to the previous steps for adjustment and optimization until a satisfactory result is obtained. Through accurate parameter setting, scientific calculation and strict simulation verification, the accuracy of determining the mass of the balance block of the external opening handle can be greatly improved. Compared with the traditional empirical design method, the risk of substandard design and multiple test verification is reduced. Since the number of actual collision tests is reduced, the development cost is reduced. At the same time, through rapid simulation verification and optimization, the development cycle can be shortened and the market competitiveness of the product can be improved. After rigorous calculation and verification, the determined balance block mass can better adapt to various actual usage conditions, improving the reliability and safety of the door opening system. It provides consumers with a more reliable driving experience and enhances the brand credibility of the product. This method can be applied to the design requirements of different types of external opening handles and different models, and has strong versatility and adaptability. It can provide a standardized design method for automobile manufacturers to improve design efficiency and quality.
[0082] It should be noted here that the description of the above technical solutions is exemplary, and this specification can be embodied in different forms and should not be interpreted as being limited to the technical solutions set forth herein. On the contrary, providing these descriptions will make the disclosure of the present invention thorough and complete, and will fully convey the scope disclosed in this specification to those skilled in the art. In addition, the technical solution of the present invention is limited only by the scope of the claims. In the case of using "including", "having" and "comprising" described in this specification, there may also be another part or other parts, and the terms used may generally be singular but may also represent plural forms. In short, the above embodiments are only more representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments, and there may be many variations. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention shall be deemed to belong to the protection scope of the present invention.
Claims
1. A system for determining the mass of a balancing weight of an outward-opening handle, characterized in that: It includes a parameter setting module (1), a parameter processing module (2) and a simulation verification module (3); The parameter setting module (1) is used to set the parameters of the external opening handle; The parameter processing module (2) is used to calculate the mass of the balance block of the outward opening handle according to the outward opening handle parameters; The simulation verification module (3) is used to generate an outward-opening handle simulation collision model according to the outward-opening handle parameters and the mass of the outward-opening handle balance block, and to determine whether the mass of the outward-opening handle balance block meets the outward-opening handle simulation collision requirements.
2. The system for determining the mass of the balancing weight of an outward opening handle according to claim 1, characterized in that: The parameter setting module (1) comprises a longitudinal outward opening handle parameter setting module (1.1) and a transverse outward opening handle parameter setting module (1.2); The parameter processing module (2) comprises a longitudinal outward opening handle parameter processing module (2.1) for calculating the mass of the longitudinal outward opening handle balance block according to the longitudinal outward opening handle parameters; and a transverse outward opening handle parameter processing module (2.2) for calculating the mass of the transverse outward opening handle balance block according to the transverse outward opening handle parameters; The simulation verification module (3) comprises a longitudinal outward opening handle simulation verification module (3.1) for generating a longitudinal outward opening handle simulation collision model according to the longitudinal outward opening handle parameters and the longitudinal outward opening handle balance block mass, and determining whether the longitudinal outward opening handle balance block mass meets the longitudinal outward opening handle simulation collision requirements; And a transverse outward opening handle simulation collision model is generated according to the transverse outward opening handle parameters and the mass of the transverse outward opening handle balance block, and a transverse outward opening handle simulation verification module (3.2) is used to determine whether the mass of the transverse outward opening handle balance block meets the transverse outward opening handle simulation collision requirements.
3. The system for determining the mass of the balancing weight of the outward opening handle according to claim 2, characterized in that: The method for calculating the mass of the longitudinal outward opening handle balance block according to the longitudinal outward opening handle parameters comprises: performing a moment balance calculation on the longitudinal outward opening handle (4) located on the collision side of the vehicle body to obtain a minimum value of the mass of the longitudinal outward opening handle balance block; and performing a moment balance calculation on the longitudinal outward opening handle (4) located on the non-collision side of the vehicle body to obtain a maximum value of the mass of the longitudinal outward opening handle balance block.
4. The system for determining the mass of the balancing weight of the outward opening handle according to claim 3, characterized in that: The calculation formula for the minimum value of the mass of the longitudinal outward-opening handle balance block is: Wherein, m2 is the minimum value of the mass of the balance block of the longitudinal outward-opening handle, m1 is the mass of the longitudinal outward-opening handle (4), a is the magnitude of the inertial force resistance, α is the angle between the inertial force in the first acceleration direction and the horizontal plane, L1 is the distance from the handle mass center to the handle rotation axis, β is the angle between the inertial force in the second acceleration direction and the horizontal plane, L2 is the distance from the handle rotation axis to the contact point between the longitudinal handle retractor (5) and the longitudinal balance block (6), L3 is the distance from the contact point between the longitudinal handle retractor (5) and the longitudinal balance block (6) to the longitudinal balance block rotation axis (7), θ is the angle between L3 and the horizontal plane, and T spg is the door lock spring torque, L2 is the distance from the handle rotation axis to the contact point between the longitudinal handle hook (5) and the longitudinal balance block (6), F lac is the magnitude of the force on the door lock, K is the torsion constant of the door lock spring, L4 is the distance from the longitudinal balancing block rotation axis (7) to the center of mass of the balancing block, and δ is the angle between L4 and the first acceleration direction.
5. The system for determining the mass of the balancing weight of the outward opening handle according to claim 3, characterized in that: The calculation formula for the maximum value of the mass of the longitudinal outward-opening handle balance block is: Wherein, m2 is the minimum value of the mass of the balance block of the longitudinal outward-opening handle, m1 is the mass of the longitudinal outward-opening handle (4), a is the magnitude of the inertial force resistance, α is the angle between the inertial force in the first acceleration direction and the horizontal plane, L1 is the distance from the handle mass center to the handle rotation axis, β is the angle between the inertial force in the second acceleration direction and the horizontal plane, L2 is the distance from the handle rotation axis to the contact point between the longitudinal handle retractor (5) and the longitudinal balance block (6), L3 is the distance from the contact point between the longitudinal handle retractor (5) and the longitudinal balance block (6) to the longitudinal balance block rotation axis (7), θ is the angle between L3 and the horizontal plane, and T spg is the door lock spring torque, L2 is the distance from the handle rotation axis to the contact point between the longitudinal handle hook (5) and the longitudinal balance block (6), F lac is the magnitude of the force on the door lock, K is the torsion constant of the door lock spring, L4 is the distance from the longitudinal balancing block rotation axis (7) to the center of mass of the balancing block, and δ is the angle between L4 and the first acceleration direction.
6. The system for determining the mass of the balancing weight of the outward opening handle according to claim 2, characterized in that: The method for calculating the mass of the horizontal outward opening handle balance block according to the horizontal outward opening handle parameters comprises: performing a moment balance calculation on the horizontal outward opening handle (9) located on the collision side of the vehicle body to obtain a minimum value of the mass of the horizontal outward opening handle balance block; and performing a moment balance calculation on the horizontal outward opening handle (9) located on the non-collision side of the vehicle body to obtain a maximum value of the mass of the horizontal outward opening handle balance block.
7. The system for determining the mass of the balancing weight of an outward opening handle according to claim 6, characterized in that: The calculation formula for the minimum value of the mass of the horizontal outward-opening handle balance block is: Wherein, m2 is the minimum value of the mass of the balancing block of the horizontally placed outward opening handle, m1 is the mass of the horizontally placed outward opening handle (9), a is the magnitude of the inertial force resistance, α is the angle between the inertial force in the first acceleration direction and the horizontal plane, L1 is the distance from the handle mass center to the handle rotation axis, L2 is the distance from the handle rotation axis to the contact point between the horizontally placed handle hook (10) and the horizontally placed balancing block (11), β is the angle between the inertial force in the second acceleration direction and the horizontal plane, L3 is the distance from the balancing block mass center to the balancing block rotation axis, θ is the angle between L3 and the horizontal plane, T spg is the door lock spring torque, L2 is the distance from the handle rotation axis to the contact point between the horizontal handle hook (10) and the horizontal balance block (11), F lac is the magnitude of the force on the door lock, K is the torsion constant of the door lock spring, L4 is the distance from the horizontal balance block rotation axis (12) to the contact point between the horizontal balance block (11) and the horizontal handle hook (10), δ is the angle between L2 and the force direction of the horizontal handle hook (10), ρ is the angle between the door lock opening force in the X direction and L3, and μ is the angle between the door lock opening force in the Y direction and L4.
8. The system for determining the mass of the balancing weight of an outward opening handle according to claim 6, characterized in that: The calculation formula for the maximum value of the mass of the horizontal outward-opening handle balance block is: Wherein, m2 is the minimum value of the mass of the balancing block of the horizontally placed outward opening handle, m1 is the mass of the horizontally placed outward opening handle (9), a is the magnitude of the inertial force resistance, α is the angle between the inertial force in the first acceleration direction and the horizontal plane, L1 is the distance from the handle mass center to the handle rotation axis, L2 is the distance from the handle rotation axis to the contact point between the horizontally placed handle hook (10) and the horizontally placed balancing block (11), β is the angle between the inertial force in the second acceleration direction and the horizontal plane, L3 is the distance from the balancing block mass center to the balancing block rotation axis, θ is the angle between L3 and the horizontal plane, T spg is the door lock spring torque, L2 is the distance from the handle rotation axis to the contact point between the horizontal handle hook (10) and the horizontal balance block (11), F lac is the magnitude of the force on the door lock, K is the torsion constant of the door lock spring, L4 is the distance from the horizontal balance block rotation axis (12) to the contact point between the horizontal balance block (11) and the horizontal handle hook (10), δ is the angle between L2 and the force direction of the horizontal handle hook (10), ρ is the angle between the door lock opening force in the X direction and L3, and μ is the angle between the door lock opening force in the Y direction and L4.
9. A method for determining the mass of an outward-opening handle balancing weight based on the system for determining the mass of an outward-opening handle balancing weight according to any one of claims 1 to 8, characterized in that: It includes the following steps: Set the external handle parameters; Calculating the mass of the balancing block of the outward opening handle according to the outward opening handle parameters; A simulation collision model of the outward opening handle is generated according to the outward opening handle parameters and the mass of the outward opening handle balance block, and it is determined whether the mass of the outward opening handle balance block meets the simulation collision requirement of the outward opening handle.
10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method described in claim 9 is implemented.