A kind of automobile objective evaluation test equipment based on man-machine bench model

Abstract

The application provides a kind of automobile objective evaluation test equipment based on man-machine bench model, comprising: display screen device for simulating the change of the environment in front of real car driver, the display screen device can be adapted to the demand of test personnel and move up and down;Simulate steering wheel for simulating the steering wheel of real car;Simulate driving seat for simulating the driving seat of real car;Simulate steering wheel is arranged in front of simulate driving seat, display screen device is arranged between simulate steering wheel;Detection component for collecting the body state information and driving posture information of test personnel sitting on simulate driving seat;Processor connected with the detection component, test personnel operate simulate steering wheel and / or observe the information displayed on display screen device, detection component collects the body state information and driving posture information of test personnel, processor evaluates according to the body state information and driving posture information collected, and obtains the human driving comfort result.

Description

Technical Field

[0001] This invention relates to the field of testing technology, specifically to an objective evaluation testing device for automobiles based on a human-machine rig model. Background Technology

[0002] The latest national standard of my country, "Terms and Definitions of Motor Vehicles and Trailers" (GB / T 3730.1-2001), defines a motor vehicle as follows: a non-rail-borne vehicle that is powered and has four or more wheels, mainly used for: carrying passengers and / or goods; towing vehicles carrying passengers and / or goods; and for special purposes.

[0003] Human-computer interaction models are often used for subjective evaluation, but the results are highly susceptible to subjective factors and have many interfering factors, making it impossible to form objective evaluation results, which in turn affects the design scheme. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an objective evaluation testing device for automobiles based on a human-machine bench model. It has the advantages of accurate measurement and high precision, and solves the problem of numerous interference factors that prevent the formation of objective evaluation results.

[0005] The technical solution of this invention is as follows:

[0006] This invention provides an objective evaluation testing device for automobiles based on a human-machine bench model, comprising:

[0007] A display screen device for simulating changes in the environment in front of a real vehicle driver, the display screen device being able to move up and down to adapt to the needs of the test personnel;

[0008] A simulated steering wheel for simulating a real car steering wheel;

[0009] A simulated driver's seat for simulating the driver's seat of a real vehicle; a simulated steering wheel is arranged in front of the simulated driver's seat, and a display screen is arranged between the simulated steering wheels;

[0010] A detection component used to collect information on the human body status and driving posture of test personnel sitting in a simulated driver's seat;

[0011] The processor connected to the detection component allows the tester to operate the simulated steering wheel and / or observe the information displayed on the display device. The detection component collects the tester's human body state information and driving posture information, and the processor evaluates the collected human body state information and driving posture information to obtain the human driving comfort result.

[0012] Preferably, the detection components include: an eye tracker for acquiring the eye focus of the tester, a heart rate detector for collecting the heart rate of the tester, a wireless joint sensor for detecting the motion envelope of the elbow joint, a joint sensor for detecting the motion envelope of the knee joint and ankle, and a camera for collecting the human driving posture of the tester.

[0013] Preferably, the display device includes:

[0014] Base;

[0015] The uprights are mounted on the base;

[0016] Transmission components assembled on the base and column;

[0017] The display screen assembly is fixedly connected to the transmission component, and the display screen assembly can move up and down as the transmission component moves.

[0018] Preferably, the transmission assembly includes:

[0019] The base is equipped with a motor, a drive wheel driven by the motor, a driven wheel driven by the drive wheel via a belt, a first threaded rod connected to the drive wheel, and a second threaded rod connected to the driven wheel; the first threaded rod and the second threaded rod pass through the base and extend into a column at a corresponding position.

[0020] A first threaded block is screwed to a first threaded rod, and a second threaded block is screwed to a second threaded rod; the first threaded block and the second threaded block extend out of their respective columns and are connected to the display screen assembly.

[0021] Preferably, a first fixed seat is fixed inside the base, and a rotating rod is rotatably connected to the first fixed seat; the driven wheel is fixedly installed on the rotating rod;

[0022] Each column has a second fixing seat at its end to limit the corresponding threaded rod.

[0023] Preferably, the display assembly includes: a display screen;

[0024] A first fixing plate fixedly connected to the first threaded block, and a second fixing plate fixedly connected to the second threaded block;

[0025] A slotted plate fixedly connected between the first fixed plate and the second fixed plate;

[0026] A first protective plate is movably connected to a first fixed plate, and a second protective plate is movably connected to a second fixed plate; the first protective plate and the second protective plate are opposite to each other, and the slot plate is opposite to the first protective plate and the second protective plate;

[0027] The display screen is connected between the first fixing plate, the second fixing plate, the first protective plate, the second protective plate and the slot plate. The slot plate has a groove on the side facing the display screen to hold the display screen in place.

[0028] Preferably, a first anti-slip pad is fixedly connected to the side of the first fixing plate and the second fixing plate facing the display screen, a second anti-slip pad is fixedly connected to the side of the slot plate facing the display screen, and a third anti-slip pad is fixedly connected to the side of the first protective plate and the second protective plate facing the display screen.

[0029] Preferably, each column has a sliding groove on the side facing the display screen, and each column has a movable groove opposite to the sliding groove; the width of the movable groove is smaller than the width of the sliding groove.

[0030] One end of the first threaded block and the second threaded block are limited in the corresponding movable groove, and the other end passes through the corresponding sliding groove and is connected to the display screen assembly.

[0031] The beneficial effects of this invention are as follows:

[0032] 1. This vehicle objective evaluation testing equipment based on a human-machine interface model works by inserting a display screen into a slot plate, then covering the fixed plate with a protective plate, and screwing bolts into the protective and fixed plates to secure the display screen. A motor is then started, driving pulleys to rotate. Since a belt is movably connected to the outer surface of the pulleys, both pulleys rotate simultaneously. The rotation of the pulleys drives a threaded rod, which in turn moves a threaded block, which in turn moves the fixed plate. This movement of the fixed plate then moves the slot plate and the display screen, thus achieving the effect of adjusting the display screen vertically. Drivers and passengers can adjust their seats to a comfortable driving position based on the surrounding vehicle environment and the display screen's position.

[0033] 2. After adjusting their preferred seating positions, passengers wear corresponding sensors, eye movement sensors, and heart rate monitors on various joints, and data is collected in real time and transmitted to the system. Eye movement sensors acquire the position of the driver's eye points and highlight the areas they observe. This method allows for the identification of key areas and elements of focus for passengers during driving, which is then used in the overall vehicle design, with high-focus areas receiving higher design priority. Joint sensors acquire the position of the human joints, and the system fits a motion envelope in real time. This motion envelope is used to determine the distance between the human body and surrounding components, enabling more precise design – one of the beneficial effects. The acquired joint motion envelope allows for the real-time fitting of joint angles, which are compared with recommended joint angles set in the system, and the system automatically assesses joint comfort. If the system determines discomfort at this time, it will combine the subjective evaluation methods and scoring standards in the two documents [Wu Lijun. Automobile Design and Product Development. Beijing: Machinery Industry Press. 2021] and [SAE J1441: Subjective Raising Scale for Vehicle Handling] to propose corresponding evaluation questions to more accurately judge the current comfort level of the evaluator, which is the second benefit. The recommended range of comfortable joint angles is set according to the ergonomic design specifications, and the recommended values ​​will be continuously optimized in subsequent evaluation processes. Heart rate judgment is an auxiliary means of comfort judgment. By reading the heart rate, the current driving and riding state of the driver and passengers can be judged, such as excitement, disappointment and other emotions. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of an objective evaluation testing device for automobiles based on a human-machine bench model proposed in this invention.

[0035] Figure 2 This is a left view of the structure of an objective vehicle evaluation testing device based on a human-machine rig model proposed in this invention.

[0036] Figure 3 This is a front sectional view of the structural transmission component of an objective vehicle evaluation testing device based on a human-machine bench model proposed in this invention.

[0037] Figure 4 This is a schematic diagram showing the connection between the display screen, the slot plate, and the second anti-slip pad of an objective vehicle evaluation testing device based on a human-machine rig model proposed in this invention.

[0038] In the diagram: 1. Base, 2. Column, 3. Display screen, 4. Motor, 5. Drive wheel, 6. Belt, 7. Ankle wireless sensor, 8. Second threaded rod, 9. Second fixed seat, 10. Rotating rod, 11. First fixed seat, 12. Second threaded block, 13. Movable groove, 14. Slide groove, 15. Second fixed plate, 16. Slot plate, 17. First anti-slip pad, 18. Bolt, 19. Second protective plate, 20. Third anti-slip pad, 21. Knee joint sensor, 22. Camera, 23. Simulated steering wheel, 24. Eye tracker, 25. Heart rate monitor, 26. Elbow joint wireless sensor, 27. Simulated driver's seat, 28. Second anti-slip pad. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please see Figure 1-4 This embodiment provides an objective evaluation testing device for automobiles based on a human-machine interface model, including a display screen device for simulating changes in the environment in front of a real vehicle driver, the display screen device being able to move up and down to adapt to the needs of the tester; a simulated steering wheel 23 for simulating a real vehicle steering wheel; a simulated driver's seat 27 for simulating a real vehicle driver's seat; the simulated steering wheel 23 being arranged in front of the simulated driver's seat 27, and the display screen device being arranged between the simulated steering wheels 23; a detection component for collecting human body state information and driving posture information of the tester sitting in the simulated driver's seat 27; and a processor connected to the detection component. The tester operates the simulated steering wheel and / or observes the information displayed on the display screen device. The detection component collects the human body state information and driving posture information of the tester, and the processor evaluates the collected human body state information and driving posture information to obtain the human driving comfort result.

[0041] In this embodiment, the detection components include: an eye tracker 24 for acquiring the eye focus of the tester, a heart rate detector 25 for collecting the heart rate of the tester, a wireless joint sensor 26 for detecting the elbow joint, a joint sensor 21 for detecting the knee joint, a wireless sensor 7 for detecting the ankle, and a camera 22 for collecting the human driving posture of the tester.

[0042] Based on the collected human body envelope information and driving posture information, and referring to the vehicle evaluation scoring methods in two documents, [Wu Lijun. Automobile Design and Product Development. Beijing: Machinery Industry Press. 2021] and [SAE J1441: Subjective Raising Scale Forvehicular Handling], the obtained joint motion envelopes and joint comfort angles were compared to obtain the results of human driving comfort.

[0043] The display device includes: a base 1; a column 2 mounted on the base 1; a transmission assembly mounted on the base 1 and the column 2; and a display assembly fixedly connected to the transmission assembly, the display assembly being able to move up and down as the transmission assembly drives it.

[0044] The base 1 is a hollow frame structure. There are two uprights 2, which are symmetrically arranged on the base and fixed to the base 1 by means of screws or other methods. The uprights 2 are hollow inside, and the hollow inside the base 1 is connected to the hollow inside the uprights 2.

[0045] The transmission assembly includes: a motor 4 mounted in the base, a drive wheel 5 driven by the motor 4, a driven wheel driven by the drive wheel 5 via a belt, a first threaded rod connected to the drive wheel, and a second threaded rod 8 connected to the driven wheel; the first threaded rod and the second threaded rod 8 respectively pass through the base 1 and extend into a corresponding column 2; a first threaded block screwed to the first threaded rod, and a second threaded block 12 screwed to the second threaded rod; the first threaded block and the second threaded block 12 respectively extend out of their corresponding columns 2 and are connected to the display screen assembly.

[0046] A first fixed seat 11 is fixed inside the base 1, and a rotating rod 10 is rotatably connected to the first fixed seat 11. A driven wheel is fixedly installed on the rotating rod 10. A second fixed seat 9 is provided at the end of each column 2 to limit the corresponding threaded rod. The first fixed seat 11 and the motor 4 are fixed in the hollow interior of the base 1 by means of screwing or welding. The rotating rod 10 can be rotatably connected to the first fixed seat 11 by integral assembly with the first fixed seat 11. When the output shaft of the motor 4 is running, it drives the driving wheel 5 to rotate, which in turn drives the driven wheel to rotate via the belt 6. When the driving wheel 5 and the driven wheel rotate, they drive the threaded rod fixedly connected to them to rotate. Since the threaded rod and the threaded block are screwed together, when the threaded rod rotates, it drives the threaded block to rotate up and down on the threaded rod, thereby realizing the up and down movement of the display screen assembly fixedly connected to the threaded block.

[0047] Both columns 2 are fixedly connected to a second fixing seat 9 inside, and the ends of both threaded rods are movably connected to the internal groove of the second fixing seat 9, which can make the rotation of the threaded rod 8 more stable.

[0048] Each column 2 has a sliding groove 14 on the side facing the display screen, and each column 2 has a movable groove 13 opposite to the sliding groove 14. The length of the movable groove 13 is equal to the length of the sliding groove 14, and the width of the movable groove 13 is less than the width of the sliding groove 14. One end of the first threaded block and the second threaded block 12 are limited in the corresponding movable groove 13, and the other end passes through the corresponding sliding groove 14 and connects to the display screen assembly. The vertical movement of the two threaded blocks is limited between the movable groove 13 and the sliding groove 14, which enables more stable movement of the threaded blocks.

[0049] The display assembly includes: a display screen 3; a first fixing plate fixedly connected to a first threaded block, and a second fixing plate 15 fixedly connected to a second threaded block; a slotted plate 16 fixedly connected between the first fixing plate and the second fixing plate 15; a first protective plate movably connected to the first fixing plate, and a second protective plate 19 movably connected to the second fixing plate 15; the first protective plate and the second protective plate 19 are opposite to each other, and the slotted plate 16 is opposite to the first protective plate and the second protective plate 19; the display screen 3 is connected between the first fixing plate, the second fixing plate 15, the first protective plate, the second protective plate 19, and the slotted plate 16, and the slotted plate 16 has a groove formed on the side facing the display screen 3 for securing the display screen. A first anti-slip pad 17 is fixedly connected to the side of the first fixing plate and the second fixing plate 15 facing the display screen 3, a second anti-slip pad 28 is fixedly connected to the side of the slotted plate 16 facing the display screen 3, and a third anti-slip pad 20 is fixedly connected to the side of the first protective plate and the second protective plate 19 facing the display screen 3.

[0050] Both first anti-slip pads 17 are movably connected to the display screen 3, the second anti-slip pad 28 is movably connected to the display screen 3, and both third anti-slip pads 20 are movably connected to the display screen 3, which can make the display screen 3 more securely fixed.

[0051] In use, the display screen 3 is clipped into the slot plate 16, then the protective plate is placed on the fixing plate, and the bolts are screwed into the protective plate and the fixing plate to fix the display screen 3. Then, the motor 4 is started to drive the drive wheel 5 and the driven wheel to rotate. The rotation of the drive wheel 5 and the driven wheel drives the threaded rod to rotate. The rotation of the threaded rod drives the threaded block to move. The movement of the two threaded blocks drives the two fixing plates to move. The movement of the two fixing plates drives the slot plate 16 and the display screen 3 to move, thereby achieving the effect of adjusting the display screen 3 up and down.

[0052] In summary, this objective evaluation testing device for automobiles based on a human-machine interface model uses an eye tracker 24 worn on the head, a heart rate monitor 25 worn on the wrist, a wireless elbow sensor 26 worn on the elbow, a knee sensor 21 worn on the knee, and a wireless ankle sensor 7 worn on the ankle. The user then sits in the driver's seat 27 in a simulated driving posture. The heart rate monitor 25 acquires the user's heart rate parameters, and the eye tracker 24 acquires the user's eye focus position. The processor analyzes the user's focus position information acquired by the eye tracker 24 through the software system and highlights it. The user's driving posture acquired by the camera 22 is combined with data from within the system to evaluate the user's driving comfort and generate an objective evaluation result.

[0053] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An objective evaluation testing device for automobiles based on a human-machine rig model, characterized in that, include: A display screen device for simulating changes in the environment in front of a real vehicle driver, the display screen device being able to move up and down to adapt to the needs of the test personnel; A simulated steering wheel for simulating a real car steering wheel; A simulated driver's seat for simulating the driver's seat of a real vehicle; a simulated steering wheel is arranged in front of the simulated driver's seat, and a display screen is arranged between the simulated steering wheels; A detection component for collecting human body state information and driving posture information of test subjects sitting in a simulated driver's seat; the detection component includes an eye tracker and multiple joint sensors; The processor connected to the detection component allows the tester to operate the simulated steering wheel and / or observe the information displayed on the display device. The detection component collects the tester's human body state information and driving posture information, and the processor evaluates the collected human body state information and driving posture information to obtain the human driving comfort result. The location of the human eye point is obtained through eye motion and the observation area of ​​the display device is highlighted. The position of human joints is obtained by sensors at each joint, and the human motion envelope is fitted in real time. The distance between the human body and surrounding components is determined by the motion envelope. By acquiring the motion envelope of human joints, joint angles can be fitted in real time and compared with the set recommended joint angles to automatically assess the joint comfort of the test subject.

2. The vehicle objective evaluation testing equipment based on a human-machine bench model according to claim 1, characterized in that, The detection components include: an eye tracker for acquiring the eye focus of the tester, a heart rate monitor for collecting the heart rate of the tester, a wireless joint sensor for detecting the motion envelope of the elbow joint, a joint sensor for detecting the motion envelope of the knee and ankle joints, and a camera for collecting the human driving posture of the tester.

3. The vehicle objective evaluation testing equipment based on a human-machine bench model according to claim 1, characterized in that, The display device includes: Base; The uprights are mounted on the base; Transmission components assembled on the base and column; The display screen assembly is fixedly connected to the transmission component, and the display screen assembly can move up and down as the transmission component moves.

4. The vehicle objective evaluation testing equipment based on a human-machine bench model according to claim 3, characterized in that, The transmission components include: The base is equipped with a motor, a drive wheel driven by the motor, a driven wheel driven by the drive wheel via a belt, a first threaded rod connected to the drive wheel, and a second threaded rod connected to the driven wheel; the first threaded rod and the second threaded rod pass through the base and extend into a column at a corresponding position. A first threaded block is screwed to a first threaded rod, and a second threaded block is screwed to a second threaded rod; the first threaded block and the second threaded block extend out of their respective columns and are connected to the display screen assembly.

5. The vehicle objective evaluation testing equipment based on a human-machine bench model according to claim 4, characterized in that, A first fixed seat is fixed inside the base, and a rotating rod is rotatably connected to the first fixed seat; a driven wheel is fixedly installed on the rotating rod. Each column has a second fixing seat at its end to limit the corresponding threaded rod.

6. The vehicle objective evaluation testing equipment based on a human-machine bench model according to claim 4, characterized in that, The display assembly includes: a display screen; A first fixing plate fixedly connected to the first threaded block, and a second fixing plate fixedly connected to the second threaded block; A slotted plate fixedly connected between the first fixed plate and the second fixed plate; A first protective plate is movably connected to a first fixed plate, and a second protective plate is movably connected to a second fixed plate; the first protective plate and the second protective plate are opposite to each other, and the slot plate is opposite to the first protective plate and the second protective plate; The display screen is connected between the first fixing plate, the second fixing plate, the first protective plate, the second protective plate and the slot plate. The slot plate has a groove on the side facing the display screen to hold the display screen in place.

7. The vehicle objective evaluation testing equipment based on a human-machine bench model according to claim 6, characterized in that, A first anti-slip pad is fixedly connected to the side of the first and second fixing plates facing the display screen, a second anti-slip pad is fixedly connected to the side of the slot plate facing the display screen, and a third anti-slip pad is fixedly connected to the side of the first and second protective plates facing the display screen.

8. The vehicle objective evaluation testing equipment based on a human-machine bench model according to claim 3, characterized in that, Each column has a sliding groove on the side facing the display screen, and each column has a movable groove that is opposite to the sliding groove; the width of the movable groove is smaller than the width of the sliding groove. One end of the first threaded block and the second threaded block are limited in the corresponding movable groove, and the other end passes through the corresponding sliding groove and is connected to the display screen assembly.

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