Automotive ergonomics validation device, system and method suitable for virtual-physical integration

Abstract

An automotive ergonomics validation device suitable for virtual-physical integration, belonging to the technical field of vehicles. The device comprises a bench chassis mechanism (1), a segmented roof mechanism (3) and an intelligent control unit, the bench chassis mechanism (1) being provided with a roof frame mechanism (2), and a mounting space being provided between the bench chassis mechanism (1) and the roof frame mechanism (2); a steering wheel adjustment mechanism (4), a floor mechanism, an armrest mechanism (7), a seat mechanism and a rear sill mechanism (5) are arranged in the length direction in the mounting space; the segmented roof mechanism (3) is arranged on the roof frame mechanism (2) and is used for providing a light source; the intelligent control unit is used for adjusting and controlling each mechanism according to instructions of testers. The present device can improve the efficiency and quantitative accuracy of automotive ergonomics validation, and solve the problems of low efficiency and insufficient realism of existing validation methods. Also provided are an automotive ergonomics validation system and method for virtual-physical integration.

Description

Applicable to virtual and physical automotive ergonomics verification devices, systems and methods

[0001] This disclosure claims priority to Chinese Patent Application No. 202410983201.1, filed on July 22, 2024, entitled "Automotive Ergonomics Verification Device, System and Method Applicable to Virtual and Real Integration", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of vehicle technology, and in particular to a device, system, and method for verifying automotive human-machine engineering in a virtual-physical combination. Background Technology

[0003] The statements in this section are merely background information relating to this disclosure and do not necessarily constitute prior art.

[0004] Automotive ergonomics verification refers to the process of evaluating and verifying whether the vehicle's internal structure, control systems, and other elements that interact with the driver and passengers conform to ergonomic principles during the vehicle design and development process. This involves effectively verifying the vehicle's ergonomic parameters early in the development process. Through this process, it is ensured that the vehicle not only meets functional requirements but also adapts to a wide range of users in terms of safety, comfort, ease of use, and efficiency.

[0005] Currently, various automakers have developed different physical test benches for the preliminary verification of overall layout and human-machine interface solutions. However, the existing physical test benches generally suffer from low levels of intelligence, resulting in long verification times, which affects the efficiency of human-machine interface verification and is not suitable for the development of current vehicle models.

[0006] With the development of technology, virtual reality (VR) technology has been introduced into human-computer interaction (HCI) verification, enabling rapid HCI verification in a virtual environment. However, existing automotive HCI intelligent virtual reality verification systems mostly collect data through hardware devices such as motion capture systems and then verify the data in a virtual scene based on VR glasses. This results in a lack of realism and clear physical boundaries, poor positional accuracy, and an inability to reflect the user's real experience while riding in the car.

[0007] Furthermore, due to their low levels of intelligence and automation, existing physical platforms are difficult to integrate effectively with virtual reality technology. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this disclosure provides an automotive ergonomics verification device, system, and method suitable for virtual-real integration. It combines virtual reality technology with an improved physical platform to perform ergonomics design and verification from the perspective of immersive experience, providing the necessary physical boundaries for virtual scenes and ensuring the quantitative accuracy of review results.

[0009] Firstly, this disclosure provides an automotive ergonomics verification device suitable for a combination of virtual and real technologies;

[0010] A vehicle ergonomics verification device suitable for combining virtual and real technologies, comprising:

[0011] A platform chassis mechanism is provided, on which a roof frame mechanism is provided, and there is an installation space between the platform chassis mechanism and the roof frame mechanism; within the installation space, a steering wheel adjustment mechanism, a floor mechanism, an elbow rest mechanism, a seat mechanism and a rear sill mechanism are provided along the length direction.

[0012] A roof segmentation mechanism is provided on the roof frame mechanism. The roof segmentation mechanism is used to provide a light source for the motion capture device so that the automotive ergonomics verification device can be combined with the virtual reality system for ergonomics verification.

[0013] The intelligent control unit is used to acquire tester instructions and adjust and control the test bench chassis mechanism, the roof frame mechanism, the steering wheel adjustment mechanism, the floor mechanism, the elbow rest mechanism, the seat mechanism, the rear sill mechanism, and the roof block mechanism according to the tester instructions.

[0014] Secondly, this disclosure provides an automotive human-machine engineering verification system suitable for a combination of virtual and real technologies;

[0015] A human-machine engineering verification system for vehicles that combines virtual and real elements includes an optical motion capture device, a head-mounted display device, and the aforementioned human-machine engineering verification device for vehicles that combines virtual and real elements.

[0016] The automotive ergonomics verification device suitable for virtual-real integration is used to provide the physical state of the vehicle model to be verified. The optical motion capture device is used to capture the movements of the personnel to be verified in the automotive ergonomics verification device suitable for virtual-real integration. The head-mounted display device is used to display the virtual reality scene of the vehicle compartment to be verified, so that the verification personnel can wear the motion capture device and VR helmet to conduct subjective evaluation of automotive ergonomics on the automotive ergonomics verification device.

[0017] Thirdly, this disclosure provides a method for verifying automotive ergonomics that combines virtual and real technologies;

[0018] A method for verifying automotive ergonomics using a hybrid virtual-physical approach includes the following steps:

[0019] The intelligent control unit adjusts the automotive ergonomics verification device to the physical state of the vehicle model to be verified.

[0020] Load the engineering data of the vehicle model to be verified, construct a virtual reality scene and display it in the VR headset, and align the physical position in the vehicle ergonomics verification device with the virtual position in the virtual scene through optical positioning;

[0021] Verification personnel wear motion capture devices and VR headsets to conduct subjective evaluations of automotive ergonomics on an automotive ergonomics verification device.

[0022] The technical solution provided in this disclosure includes at least the following beneficial effects:

[0023] 1. The technical solution provided in this disclosure designs an intelligent and automated human-machine engineering vehicle verification device, which can be combined with virtual reality technology to perform human-machine engineering verification, providing the necessary physical boundaries for virtual scenes, improving the authenticity of the verification process, and further ensuring the quantitative accuracy of the review results.

[0024] 2. The technical solution provided in this disclosure adopts an automotive human-machine engineering virtual verification system that combines an intelligent and automated human-machine engineering vehicle verification device, a motion capture device, a virtual reality device, and an HMD (Head-Mounted Display) device. It conducts human-machine engineering design and verification from the perspective of immersive experience, improves human-machine design and verification capabilities, and can efficiently and accurately evaluate human-machine engineering aspects such as field of vision, interior space, accessibility, ease of getting in and out of the vehicle, ease of operation, appearance quality, and gap differences in the early stages of vehicle development through VR mode. It enables rapid response, accurate verification, efficient decision-making, trade-off balancing, and reduced design changes.

[0025] 3. The technical solution provided in this disclosure takes into account both pure physical verification and motion capture verification. After actual testing, it is suitable for optical motion capture technology design. The signal is stable when personnel move in and around the test bench, without any signal loss due to obstruction. The test bench can be debugged to different vehicle models (from A-class to D-class, from sports cars to SUVs) and can obtain optical motion capture signals well. The operation is stable and efficient, and the review is accurate. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 is a structural schematic diagram of an automotive ergonomics verification device suitable for combining virtual and real technologies provided in an embodiment of this disclosure;

[0028] Figure 2 is an exploded structural diagram of an automotive ergonomics verification device suitable for combining virtual and real technologies, provided in an embodiment of this disclosure.

[0029] Figure 3 is a schematic diagram of the architecture of an automotive human-machine engineering verification system suitable for virtual-real integration provided in an embodiment of this disclosure;

[0030] Figure 4 is a schematic diagram of the one-click switching interface for different vehicle models provided in the embodiments of this disclosure;

[0031] Figure 5 is a logical schematic diagram of the one-click switching interface for different vehicle models provided in the embodiments of this disclosure;

[0032] Figure 6 is a schematic diagram of the detailed control interface of the electric mechanism provided in the embodiment of this disclosure;

[0033] Figure 7 is a logical schematic diagram of the detailed control interface of the electric mechanism provided in the embodiment of this disclosure;

[0034] Figure 8 is a structural schematic diagram of the bench chassis mechanism provided in an embodiment of this disclosure;

[0035] Figure 9 is a schematic diagram of the Z-axis chassis body provided in an embodiment of this disclosure;

[0036] Figure 10 is a schematic diagram of the control logic of the bench chassis mechanism provided in an embodiment of this disclosure;

[0037] Figure 11 is a structural schematic diagram of the roof frame mechanism provided in the embodiment of this disclosure;

[0038] Figure 12 is a schematic diagram of the structure of the roof frame provided in an embodiment of this disclosure;

[0039] Figure 13 is a flowchart illustrating the automotive ergonomics verification method applicable to both virtual and real environments provided in this embodiment of the present disclosure.

[0040] Figure 14 is a schematic diagram of the three-point positioning method provided in the embodiments of this disclosure.

[0041] Legend: 1. Chassis frame mechanism; 101. Z-axis chassis body; 102. X-axis chassis body; 103. Z-axis adjustment motor; 2. Roof frame mechanism; 201. Roof frame; 202. Lead screw; 203. Bracket; 3. Roof segmentation mechanism; 301. First roof segmentation motor; 4. Steering wheel adjustment mechanism; 5. Tailgate mechanism; 6. Front seat mechanism; 7. Elbow rest mechanism; 8. Front floor mechanism; 9. Second-row floor mechanism; 10. Second-row seat mechanism; 11. Third-row floor mechanism; 12. Third-row seat mechanism; 13. Pedal mechanism. Detailed Implementation

[0042] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” “third,” and similar terms used in this patent disclosure and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising” or “including” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The terms “connected” or “linked” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” “right,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0043] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0044] Embodiments of this disclosure are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0045] Example 1

[0046] Existing physical test benches used for automotive ergonomics verification are not highly intelligent and cannot be fully integrated with virtual reality; therefore, this disclosure provides an automotive ergonomics verification device suitable for virtual-physical integration.

[0047] Referring to Figures 1-12, this automotive ergonomics verification device suitable for combining virtual and real systems includes a chassis frame 1, a roof segmentation mechanism 3, and an intelligent control unit. A roof frame mechanism 2 is mounted on the chassis frame 1, and there is an installation space between the chassis frame 1 and the roof frame mechanism 2. Within the installation space, along the length of the chassis frame 1, a steering wheel adjustment mechanism 4, a front floor mechanism 8, an elbow rest mechanism 7, a front seat mechanism 6, a second-row floor mechanism 9, a second-row seat mechanism 10, a third-row floor mechanism 11, a third-row seat mechanism 12, and a rear sill mechanism 5 are sequentially installed. The steering wheel adjustment mechanism 4, the front floor mechanism 8, the elbow rest mechanism 7, the front seat mechanism 6, the second-row floor mechanism 9, the second-row seat mechanism 10, the third-row floor mechanism 11, the third-row seat mechanism 12, and the rear sill mechanism 5 are located on the chassis frame 1. A pedal mechanism 13 is mounted on the steering wheel adjustment mechanism 4. Among them, the front floor mechanism 8, the second-row floor mechanism 9 and the third-row floor mechanism 11 can be collectively referred to as floor mechanisms, and the front seat mechanism 6, the second-row seat mechanism 10 and the third-row seat mechanism 12 can be collectively referred to as seat mechanisms.

[0048] Specifically, referring to Figures 8 and 9, the chassis mechanism 1 includes a Z-axis chassis body 101 and an X-axis chassis body 102. Four Z-axis adjusting motors 103 are installed at the bottom of the Z-axis chassis body 101, and the Z-axis adjusting motors 103 are located at the four corners of the Z-axis chassis body 101. The output end of the Z-axis adjusting motor 103 is connected to a lead screw, and the lead screw is threaded to a cylindrical connector. The end of the lead screw passes through the Z-axis chassis body 101, and the cylindrical connector is connected to a connecting plate on the Z-axis chassis body 101. The rotation of the Z-axis adjusting motor 103 drives the cylindrical connector to rise or fall, thereby driving the Z-axis chassis body 101 to rise or fall. Multiple slide rails are evenly installed on the Z-axis chassis body 101 along its width direction and distributed along its length direction. Multiple limiting sliders are installed on the bottom surface of the X-axis chassis body 102 corresponding to the slide rails. The limiting sliders are slidably connected to the corresponding slide rails to realize the sliding connection between the X-axis chassis body 102 and the Z-axis chassis body 101, thereby adjusting the overall length of the platform chassis mechanism 1.

[0049] An X-axis adjustment motor is mounted on the Z-axis chassis body 101, and the X-axis adjustment motor is connected to the X-axis chassis body 102 via a transmission connection. The X-axis adjustment motor has a lead screw, and the chassis body 102 has a nut, with the lead screw and nut engaging. When the lead screw of the X-axis adjustment motor rotates, the nut engaging with the lead screw drives the slider on the X-axis chassis body 102 to move on the slide rail, thereby realizing the movement of the X-axis chassis body 102 along its length direction.

[0050] Furthermore, in order to better simulate the vehicle body posture, the chassis mechanism 1 can control the simultaneous lifting and lowering of four motors (Z-direction adjustment motor 103) through the electronic control interface, or control the lifting and lowering of a single motor (Z-direction adjustment motor 103) individually, or control the synchronous lifting and lowering of the two front motors (Z-direction adjustment motor 103) and the synchronous lifting and lowering of the two rear motors (Z-direction adjustment motor 103). The specific control logic is shown in Figure 10.

[0051] As shown in Figures 11 and 12, multiple lifting adjustment units are vertically installed on the bottom surface of the ceiling frame 201. These units are used to adjust the height of the ceiling frame 201. Each lifting adjustment unit includes four lifting motors, brackets 203, and lead screws 202. Specifically, the ceiling frame mechanism 2 includes the ceiling frame 201 and four lifting motors. Brackets 203 are installed at the four corners of the Z-axis chassis body 101. Four lead screws 202 are vertically installed on the bottom surface of the ceiling frame 201. Worm gears are installed on the top of the brackets 203. A worm gear is coaxially connected to the output end of each lifting motor, meshing with the corresponding worm gear. The end of the lead screw 202 passes through the corresponding worm gear and is threadedly connected to it. When the lifting motors are powered on, the worm gear rotates, causing the worm gear to rotate. The worm gear is connected to the bracket 203 and cannot move up or down. The lead screw 202 moves up and down inside the worm gear, causing the entire ceiling frame 201 to move up and down.

[0052] Furthermore, the ceiling frame mechanism 2 adopts a four-corner synchronous lifting method. That is, four lifting motors start simultaneously, enabling the ceiling frame 201 to move horizontally along the height direction.

[0053] In order to achieve integration with the virtual reality system and realize the effect of virtual-real linkage and consistency, this embodiment improves the structure of the physical platform. As one implementation method, as shown in Figures 1 and 2, a ceiling block mechanism 3 is added. The ceiling block mechanism 3 provides a light source for the optical motion capture device, enabling it to better capture the light path, thereby enabling the optical motion capture device to better capture the movements of the person to be verified.

[0054] Specifically, as shown in Figure 12, two slide rails are installed at the bottom of the roof frame 201. Each slide rail is distributed along the length of the roof frame 201, and the two slide rails are located on both sides of the bottom of the roof frame 201. The first roof segmentation motor 301 and the lead screw are installed between the two slide rails. The roof segmentation mechanism 3 includes three sets of roof segmentation X-direction mechanisms. The roof segmentation X-direction mechanism includes a roof segmentation X-direction body, a roof segmentation Y-direction body, and a roof. The roofs of the three sets of roof segmentation X-direction mechanisms can form a complete vehicle roof. The roof segmentation X-direction body is connected to the nut on the lead screw.

[0055] As shown in Figure 2, the X-direction bodies of multiple ceiling segmentation mechanisms 3 are arranged sequentially along the length of the ceiling frame 201. The length of each X-direction body is along the width of the ceiling frame 201, and the X-direction body is installed on the ceiling frame 201. Two sliders are installed on the top of each X-direction body, which are slidably connected to the corresponding slide rails. The first ceiling segmentation motor 301 is connected to the X-direction body of the ceiling segmentation. After the first ceiling segmentation motor 301 is powered on, the lead screw rotates, and the nut cooperating with the lead screw drives the X-direction body of the ceiling segmentation to move along the slide rail. A slide rail and a second ceiling segment motor are installed at the bottom of the X-axis body of the ceiling segment. The length of the slide rail is along the length of the X-axis body of the ceiling segment. A slider is installed on the Y-axis body of the ceiling segment. The Y-axis body of the ceiling segment and the X-axis body of the ceiling segment are slidably connected along the length of the X-axis body of the ceiling segment through the slider and the slide rail. The Y-axis body of the ceiling segment is driven by the second ceiling segment motor. Under the drive of the second ceiling segment motor, the Y-axis body of the ceiling segment moves along the length of the X-axis body of the ceiling segment.

[0056] Similar to the Z-axis chassis body 101 and X-axis chassis body 102, the steering wheel adjustment mechanism 4 includes a steering wheel, as shown in Figures 1 and 2. The X-axis chassis body 102 serves as the mounting base for the steering wheel adjustment mechanism 4. A linear guide rail and an X-axis adjustment motor are mounted on the X-axis chassis body 102. A slider is mounted on the bottom of the steering wheel, and the X-axis adjustment motor is connected to the slider via a transmission connection. When the X-axis adjustment motor is energized, the lead screw rotates, and the nut cooperating with the lead screw drives the slider on the steering wheel to move on the linear guide rail. Similarly, the X-axis chassis body 102 also serves as the mounting base for the front floor mechanism 8, elbow rest mechanism 7, front seat mechanism 6, second-row floor mechanism 9, second-row seat mechanism 10, third-row floor mechanism 11, third-row seat mechanism 12, rear sill mechanism 5, and pedal mechanism 13. It has X-axis motor mounting points for the aforementioned mechanisms and is slidably connected to them.

[0057] In this embodiment, the specific structures of the front floor mechanism 8, elbow rest mechanism 7, front seat mechanism 6, second-row floor mechanism 9, second-row seat mechanism 10, third-row floor mechanism 11, third-row seat mechanism 12, rear sill mechanism 5, and pedal mechanism 13 are all existing technologies in existing automotive ergonomic physical test benches, and this embodiment does not make any improvements to them. They are all equipped with corresponding X-axis adjustment mechanisms, Y-axis adjustment mechanisms, and Z-axis adjustment mechanisms, and their specific implementation methods are the same as those of the steering wheel adjustment mechanism 4, chassis mechanism 1, etc., and will not be described again here.

[0058] The intelligent control unit is used to acquire tester commands and adjust and control the servo motors in the test bench chassis mechanism 1, roof frame mechanism 2, steering wheel adjustment mechanism 4, front floor mechanism 8, elbow rest mechanism 7, front seat mechanism 6, second-row floor mechanism 9, second-row seat mechanism 10, third-row floor mechanism 11, third-row seat mechanism 12, rear sill mechanism 5, and roof block mechanism 3 according to the tester commands. Through the drive of the servo motors in each mechanism, the device can quickly adjust the overall layout of human-machine related dimensions, as shown in Figure 3. For example, adjusting the front seat mechanism 6 can adjust the position of the SgRp hard point; adjusting the chassis X-direction mechanism can adjust the L113 dimension (the X-direction distance from the front wheel center to the footing point); adjusting the chassis Z-direction mechanism can adjust dimensions such as H5-1, H5-2, and H5-3 (H5 is the height of the SgRp point from the ground); adjusting the roof frame 201 and roof block mechanism 3 can adjust human-machine dimensions such as H61-1 and H61-2 (H61 is the headroom distance).

[0059] To achieve intelligent automation and one-button control of the automotive human-machine engineering verification device based on virtual integration, as one implementation method, the intelligent control unit includes a human-machine interface, a data interface machine, and a PLC (Programmable Logic Controller). The PLC is equipped with programmable electrical software, which is used to perform electrical programming and adjust the motor speed signal and set logic functions, such as forward and reverse rotation of a single motor, simultaneous or sequential movement of different motors in the same mechanism, and simultaneous movement of motors in different mechanisms.

[0060] The verification personnel can click on a function on the human-machine interface with one click, and the human-machine interface will send the corresponding control command to the data interface machine. The data interface machine will then transmit the corresponding control command to the PLC. The PLC will then issue control signals to adjust each mechanism according to the control command.

[0061] In this embodiment, the human-computer interaction interface is a tablet human-computer interaction interface, which includes two parts, as shown in Figure 4. The first part is a one-click switching interface for different vehicle models. By clicking the vehicle model selection on the left, the vehicle model can be switched. After switching to the corresponding vehicle model interface, clicking "one-click switching" at the bottom sends a command to the background motor. After receiving the command, the background motor moves. The specific control logic is shown in Figure 5.

[0062] The second part is the detailed control interface of the electric mechanism, as exemplified in Figure 6. Figure 6 shows the control interface of the front seat mechanism 6. The control interface logic of other mechanisms is similar to that of the front seat mechanism 6, and will not be repeated here. The control interface is divided into three areas. The first to third columns display the designed positive and negative strokes and the current real-time stroke position of each motor. The fourth to sixth columns are the stroke input control area, where the target stroke value can be entered for control, or control can be performed by direction. The seventh and eighth columns are the one-key control area, which can reset the current mechanism to the zero position, or simultaneously perform stroke control in the XYZ directions. The logic diagram is shown in Figure 7.

[0063] Example 2

[0064] Referring to Figures 13 and 14, based on the virtual-based automotive ergonomics verification device described in Embodiment 1, this embodiment discloses a virtual-based automotive ergonomics verification system, including a virtual-based automotive ergonomics verification device, an optical motion capture device, and a head-mounted display device. The virtual-real combined automotive ergonomics verification device provides the physical state of the vehicle model to be verified, the optical motion capture device captures the actions of the personnel to be verified within the virtual-real combined automotive ergonomics verification device, and the head-mounted display device displays a virtual reality scene of the vehicle compartment to be verified, enabling the verification personnel to wear the motion capture device and VR helmet to perform subjective evaluations of automotive ergonomics on the automotive ergonomics verification device.

[0065] In this embodiment, the optical motion capture device and the head-mounted display device can be common virtual reality devices in the prior art.

[0066] Example 3

[0067] Referring to Figures 4-6, based on the automotive ergonomics verification system suitable for virtual-real integration described in Embodiment 2, this embodiment provides an automotive ergonomics verification method suitable for virtual-real integration, including the following steps:

[0068] S1. Adjust the vehicle ergonomics verification device to the physical state of the vehicle model to be verified through the intelligent control unit.

[0069] In this step, the verification personnel pre-enter the positions of each mechanism of the vehicle to be verified into the memory of the human-machine interface data interface machine. By clicking the human-machine interface, the vehicle to be verified is selected with one click. The human-machine interface transmits the vehicle information to the data interface machine via the local area network. The data interface machine transmits the vehicle information to the PLC. The PLC retrieves the corresponding control parameters of each mechanism from the preset database according to the vehicle information. Based on the control parameters, it outputs control signals to adjust each mechanism, so as to adjust the automotive human-machine engineering verification device to the physical state of the vehicle to be verified.

[0070] S2. Load the engineering data of the vehicle model to be verified, construct a virtual reality scene and display it in the VR headset, and align the physical position in the vehicle ergonomics verification device with the virtual position in the virtual scene through optical positioning.

[0071] Specifically, the Catia engineering data of the vehicle model to be verified is loaded and imported into the Techviz software. A VR scene is then built using the Techviz software and displayed in a VR headset.

[0072] To achieve an effective integration of virtual and real-world scenarios and provide the necessary physical boundaries for the virtual scenario, one implementation method is to align the physical position in the automotive ergonomics verification device with the virtual position in the virtual scenario using optical positioning.

[0073] Specifically, the alignment between virtual and reality is achieved through a three-point positioning method, and the specific process is as follows:

[0074] (1) In reality, the coordinate information of the three holes of the automotive human-machine engineering verification device is obtained through an optical motion capture system, which are represented as: hole 1 (x1, y1, z1), hole 2 (x2, y2, z2), and hole 3 (x3, y3, z3).

[0075] Among them, the relative positions of the three holes are fixed and selected on the chassis frame.

[0076] (2) Obtain the coordinate positions of the virtual holes corresponding to the three hole coordinate information in the virtual system Techviz, which are represented as virtual hole 1 (X1, Y1, Z1), virtual hole 2 (X2, Y2, Z2), and virtual hole 3 (X3, Y3, Z3).

[0077] (3) By fitting the coordinates of the three holes in the virtual system to the real system, the three holes in the virtual system are repositioned according to their real positions. Specifically, the coordinates of virtual hole 1 (X1,Y1,Z1) are aligned with those of physical hole 1 (x1,y1,z1), virtual hole 2 (X2,Y2,Z2) is aligned with those of physical hole 1 (x2,y2,z2), and virtual hole 3 (X3,Y3,Z3) is aligned with those of physical hole 1 (x3,y3,z3). This allows the virtual human-machine engineering verification device to be fitted and aligned with the real motion capture system.

[0078] For example, the transformation matrix between virtual hole 1 (X1,Y1,Z1) and physical hole 1 (x1,y1,z1) is as follows, and the rest are similar:

[0079] That is: X1=a*x1+b*y1+c*z1+x0, Y1=d*x1+e*y1+f*z1+y0, Z1=g*x1+h*y1+i*z1+z0.

[0080] Here, (x0, y0, z0) is the translation vector between virtual hole 1 (X1, Y1, Z1) and physical hole 1 (x1, y1, z1). This is a rotation matrix that maps virtual scenes to reality.

[0081] S3. Verification personnel wear full-body motion capture devices and VR helmets to conduct subjective evaluations of ergonomic field of vision, interior space, accessibility, ease of getting in and out of the vehicle, ease of operation, appearance quality, and gap surface differences on the automotive ergonomic verification device.

[0082] By using the three-point positioning method, the virtual human-computer interaction verification device seen and touched by the verification personnel in the virtual environment is in the same position as the human-computer interaction verification device in the real environment, thus aligning the virtual and real aspects. This ensures the accuracy of subjective evaluation and the precision of quantitative evaluation through virtual review, and clarifies the direction for quantitative improvement.

[0083] The above description is merely an optional embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A virtual-real combined automotive man-machine engineering verification device, characterized in that, The virtual-real combined automobile ergonomics verification device comprises: A bench chassis mechanism (1) is provided with a roof skeleton mechanism (2), and the bench chassis mechanism (1) and the roof skeleton mechanism (2) have a mounting space; a steering wheel adjusting mechanism (4), a floor mechanism, an elbow rest mechanism (7), a seat mechanism and a tail gate sill mechanism (5) are arranged along the length direction in the mounting space; A roof sub-block mechanism (3) is arranged on the roof skeleton mechanism (2), and the roof sub-block mechanism (3) is used to provide a light source for a motion capture device, so that the automobile ergonomics verification device can be combined with a virtual reality system to perform ergonomics verification; An intelligent control unit is used to obtain a test personnel instruction, and adjust and control the bench chassis mechanism (1), the roof skeleton mechanism (2), the steering wheel adjusting mechanism (4), the floor mechanism, the elbow rest mechanism (7), the seat mechanism, the tail gate sill mechanism (5) and the roof sub-block mechanism (3) according to the test personnel instruction.

2. The virtual-real combined automotive ergonomics verification device according to claim 1, wherein, The intelligent control unit comprises a controller and a human-computer interaction interface, and the human-computer interaction interface is in communication connection with the controller; The human-computer interaction interface is used to respond to a one-key operation of a verification personnel and transmit a control instruction to the controller, and the control instruction is used to adjust and control the bench chassis mechanism (1), the roof skeleton mechanism (2), the steering wheel adjusting mechanism (4), the floor mechanism, the elbow rest mechanism (7), the seat mechanism, the tail gate sill mechanism (5) and / or the roof sub-block mechanism (3) according to the control instruction, so as to adjust them to a physical state of a vehicle model to be verified.

3. The virtual-real combined automotive ergonomics verification device of claim 2, wherein, The human-computer interaction interface comprises a one-key switching interface of different vehicle models and a detailed control interface of an electric mechanism.

4. The virtual-real combined automotive ergonomics verification device of claim 1, wherein, The roof sub-block mechanism (3) comprises a plurality of roof sub-block X-direction mechanisms, the roof sub-block X-direction mechanisms are in sliding connection with the roof skeleton mechanism (2) and slide along the length direction of the roof skeleton mechanism (2); Each group of roof sub-block X-direction mechanisms comprises a roof sub-block X-direction body, a roof sub-block Y-direction body in sliding connection with the roof sub-block X-direction body and a roof arranged on the roof sub-block Y-direction body, and the roofs of the plurality of groups of roof sub-block X-direction mechanisms are used to splice to form an automobile roof.

5. The virtual-real combined automotive ergonomics verification device of claim 1, wherein, The roof skeleton mechanism (2) comprises a roof skeleton (201), a plurality of lifting adjusting units are vertically arranged on the bottom surface of the roof skeleton (201), and the lifting adjusting units are used to adjust the height of the roof skeleton (201).

6. The virtual-real combined automotive ergonomics verification device of claim 1, wherein, The bench chassis mechanism (1) comprises a Z-direction chassis body (101) and an X-direction chassis body (102), the X-direction chassis body (102) is in sliding connection with the Z-direction chassis body (101), and the X-direction chassis body (102) slides along the length direction of the Z-direction chassis body (101); A plurality of Z-direction adjusting motors (103) are arranged on the bottom of the Z-direction chassis body (101), and the Z-direction adjusting motors (103) are used to adjust the height of the Z-direction chassis body (101).

7. The virtual-real combined automotive ergonomics verification device of claim 1, wherein, The steering wheel adjusting mechanism (4) comprises a steering wheel, the bottom of the steering wheel is provided with a sliding block, and the steering wheel is slidably connected with the chassis mechanism (1) through the sliding block.

8. A virtual-real combined automotive human engineering verification system, characterized by, The system comprises an optical motion capture device, a head-mounted display device and the virtual-real combined automotive ergonomics verification device according to any one of claims 1-7. The virtual-real combined automotive ergonomics verification device is used to provide a physical state of a vehicle to be verified, the optical motion capture device is used to capture the motion of a person to be verified in the virtual-real combined automotive ergonomics verification device, and the head-mounted display device is used to display a virtual reality scene of a vehicle cabin to be verified, so that the person to be verified wears the motion capture device and the VR helmet and performs subjective evaluation of automotive ergonomics on the automotive ergonomics verification device.

9. A method for virtual-real combined automotive ergonomics verification, characterized in that, The method is applied to the virtual-real combined automotive ergonomics verification system according to claim 8, and the method comprises the following steps: adjusting the automotive ergonomics verification device to a physical state of a vehicle to be verified by the intelligent control unit; loading engineering data of the vehicle to be verified, constructing a virtual reality scene and displaying the virtual reality scene in the VR helmet, and aligning a physical position in the automotive ergonomics verification device with a virtual position in the virtual scene through optical positioning; the person to be verified wears the motion capture device and the VR helmet and performs subjective evaluation of automotive ergonomics on the automotive ergonomics verification device.

10. The virtual-real combined automotive ergonomics verification method of claim 9, wherein, The method of aligning the physical position in the automotive ergonomics verification device with the virtual position in the virtual scene through optical positioning specifically comprises: obtaining a plurality of hole position coordinate information on the automotive ergonomics verification device and obtaining virtual hole coordinate information corresponding to each hole position coordinate information in the virtual scene; repositioning the virtual hole coordinate information according to the hole position coordinate information.

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