Comprehensive performance test equipment for electric vehicle

Abstract

The utility model discloses comprehensive performance test equipment for an electric vehicle, which belongs to the technical field of whole vehicle detection and comprises a test platform, and the test platform comprises a platform frame and a bearing plate arranged on the platform frame. A front roller is arranged on the platform frame, and a first concave-convex structure is detachably arranged on the circumferential surface of the front roller; a rear roller is arranged on the platform frame, and a second concave-convex structure is detachably arranged on the circumferential surface of the rear roller; a pedal control mechanism is arranged on the bearing plate, the pedal control mechanism comprises a mounting bracket arranged on the bearing plate, a first execution element is arranged on the mounting bracket, and a brake pressing plate is arranged at the action end of the first execution element; a brake handle control mechanism used for controlling a brake handle of the electric vehicle is arranged on a handlebar of the electric vehicle. According to the utility model, the driving stability of the electric vehicle under bumpy or smooth road conditions, the response and reliability of a braking system and other performances can be comprehensively tested, and comprehensive data support is provided for the design improvement and quality detection of the electric vehicle.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle testing technology, and in particular relates to a comprehensive performance testing device for electric vehicles. Background Technology

[0002] Electric vehicles use batteries as their core energy source, efficiently converting electrical energy into mechanical energy through key components such as controllers and motors, thus achieving smooth vehicle movement. Furthermore, by precisely controlling the current, the vehicle's speed can be flexibly adjusted. Based on different structures and uses, electric vehicles can be mainly divided into two categories: electric tricycles and electric bicycles. During the research and development and production of electric vehicles, manufacturers must conduct a series of rigorous and comprehensive vehicle performance tests. These tests cover multiple aspects, including the vehicle's power performance, range, braking performance, safety performance, and driving stability under different road conditions. Through detailed testing and evaluation of various performance indicators, manufacturers ensure that the electric vehicle meets the expected performance standards in actual use, providing users with a safe and convenient travel experience.

[0003] Publication number CN106706336A discloses a comprehensive vibration test platform for electric vehicles. However, this platform's performance testing is relatively limited. For example, in real-world driving scenarios, drivers frequently use the brake lever and pedal to control vehicle speed and ensure safe braking on bumpy roads, but existing test platforms cannot simulate this crucial operational situation. Furthermore, they cannot realistically reproduce the complex and bumpy road conditions faced by electric vehicles when carrying passengers. Therefore, it is difficult to comprehensively and accurately assess the stability and safety performance of electric vehicles in real-world usage environments. Summary of the Invention

[0004] To address the problems existing in the prior art, this utility model provides a comprehensive performance testing device for electric vehicles, which can comprehensively test the performance of electric vehicles in various aspects such as driving stability, braking system response and reliability under bumpy or smooth road conditions, providing more comprehensive data support for the design improvement and quality inspection of electric vehicles.

[0005] This utility model is implemented as follows: a comprehensive performance testing device for electric vehicles includes a testing platform, wherein the testing platform includes a platform frame and a load-bearing plate disposed on the platform frame;

[0006] The platform frame is provided with a front roller that is linked to the front wheel of the electric vehicle. The circumferential surface of the front roller is detachably provided with a first concave-convex structure for simulating bumpy road conditions. The platform frame is provided with a rear roller that is linked to the rear wheel of the electric vehicle. The circumferential surface of the rear roller is detachably provided with a second concave-convex structure for simulating bumpy road conditions.

[0007] A pedal control mechanism for controlling the brake pedal of an electric vehicle is provided on the support plate. The pedal control mechanism includes a mounting bracket provided on the support plate. A first actuator that can reciprocate in a straight line is provided on the mounting bracket. The actuating end of the first actuator is provided with a brake pressure plate for pressing the pedal.

[0008] The electric vehicle is equipped with a brake lever control mechanism on its handlebars for controlling the electric vehicle brake lever. The brake lever control mechanism includes a mounting frame fitted on the handlebars. The mounting frame is equipped with a second actuator that can reciprocate in a straight line. The actuating end of the second actuator is equipped with a brake lever pressure plate for pressing the brake lever.

[0009] Furthermore, a lifting assembly for assembling counterweights is located on the support plate. The lifting assembly includes a lifting frame, within which the vehicle under test is placed. Lifting components are mounted on the lifting frame. This lifting assembly can be used for assembling counterweights. By assembling counterweights of different weights onto the lifting components, the test process of the electric vehicle under different weight states when carrying passengers or cargo can be simulated, thus recreating the complex road conditions faced by the electric vehicle in actual passenger-carrying situations.

[0010] Furthermore, the front roller is mounted on the moving plate via a support frame. A first ball screw pair is provided within the platform frame, and the moving plate is mounted on the nut of the first ball screw pair. The screw in the first ball screw pair is arranged along the length direction of the vehicle under test, and a driving component is provided at the driving end of the screw. This allows the front roller to move along the length direction of the vehicle, and the position of the front roller can be flexibly adjusted to adapt to the testing needs of electric vehicles with different wheelbases, improving the versatility and flexibility of the equipment.

[0011] Furthermore, a mounting plate is provided on the support plate located in front of the front roller. The mounting plate is equipped with a front wheel clamping fixture for holding the front wheel of the electric vehicle. A front wheel tightening assembly is provided on the mounting plate near the front roller. The front wheel tightening assembly includes a first mounting bracket, within which a front wheel tightening wheel is rotatably mounted. The front wheel clamping fixture effectively clamps the front wheel of the electric vehicle, ensuring vehicle stability during testing and improving test accuracy and safety. The front wheel tightening wheel effectively tightens and supports the front wheel, preventing the vehicle from swaying left and right due to vibration or external forces during testing, ensuring the stability of the front wheel and the reliability of the testing process.

[0012] Furthermore, a rear wheel clamping assembly is provided on the bearing plate located behind the rear roller. The rear wheel clamping assembly includes a second mounting bracket, within which a rear wheel clamping wheel is rotatably mounted. The rear wheel clamping wheel can effectively clamp and support the rear wheel of the electric vehicle, preventing the vehicle from swaying left and right due to vibration or external forces during the test, thus ensuring the stability of the rear wheel and the reliability of the testing process.

[0013] Furthermore, a cooling fan is installed on the support plate, with the air outlet of the cooling fan facing the vehicle under test. This allows for direct airflow cooling of key vehicle components, such as the motor, battery, and controller, effectively reducing the vehicle's temperature during testing and preventing performance degradation or damage due to overheating. In actual driving, the vehicle is cooled by natural wind; the cooling fan simulates this natural cooling effect, making the test scenario closer to real-world road conditions and helping to evaluate the vehicle's thermal management performance in actual use.

[0014] Furthermore, the first concave-convex structure includes multiple front protrusions, which are mounted on the circumferential surface of the front roller by mounting bolts; the second concave-convex structure includes multiple rear protrusions, which are mounted on the circumferential surface of the rear roller by mounting bolts. The protrusions on the front and rear rollers are fixed by mounting bolts, allowing for easy adjustment of their position and spacing to simulate different types of bumpy road conditions, making it suitable for various testing scenarios and enhancing the equipment's flexibility and adaptability. When the protrusions are worn or damaged, they can be quickly disassembled and replaced, reducing equipment maintenance costs and downtime. Protrusions of different shapes, sizes, and heights can be selected according to different testing needs to simulate various real-world road conditions, such as cobblestone roads, speed bumps, and potholes, improving the equipment's versatility and practicality. By precisely arranging the position and combination of the protrusions, bumpy conditions under complex road surfaces can be simulated more realistically, resulting in more accurate test data and helping to better evaluate the performance of electric vehicles under different road conditions.

[0015] Furthermore, the platform frame is provided with a first drive assembly for driving the front roller to rotate; the platform frame is provided with a second drive assembly for driving the rear roller to rotate.

[0016] Furthermore, a first through hole is provided on the support plate corresponding to the installation position of the front roller, and the upper end of the front roller protrudes from the support plane of the support plate through the first through hole; a second through hole is provided on the support plate corresponding to the installation position of the rear roller, and the upper end of the rear roller protrudes from the support plane of the support plate through the second through hole.

[0017] Furthermore, a ramp is provided on one side of the platform frame, and the ramp and platform frame are designed as separate units. This separate design of the platform frame and ramp separates the main vibration components, ensuring that the vibration of the test bench does not propagate outward, reducing resonance, and preventing the ramp structure from disintegrating.

[0018] The advantages and technical effects of this utility model are as follows: By adopting the above technical solution, it is possible to comprehensively test the performance of electric vehicles in terms of driving stability, braking system response and reliability under bumpy or smooth road conditions, providing more comprehensive data support for the design improvement and quality inspection of electric vehicles.

[0019] The first and second concave-convex structures of the front and rear rollers can accurately and effectively simulate the complex and varied bumpy road conditions in real roads, providing a realistic scenario for vehicle testing. When the test requirements change and smooth road conditions need to be simulated, a simple disassembly operation can be performed to quickly switch road conditions, greatly satisfying the diverse test needs under different road conditions.

[0020] The brake pressure plate in the pedal control mechanism, through the precise linear reciprocating motion of the first actuator, can accurately simulate the force and rhythm applied by the user to the electric vehicle's brake pedal, reproducing the actual pedaling action during driving and providing a reliable data source for braking performance testing. Simultaneously, the brake lever pressure plate in the brake lever control mechanism, with the aid of the linear reciprocating motion of the second actuator, can accurately simulate the user's operation of the electric vehicle's brake lever under different road conditions, including changes in force and frequency adjustments. This allows for a comprehensive evaluation of the electric vehicle's handling performance under complex road conditions, providing strong support for electric vehicle performance optimization and safety testing. Attached Figure Description

[0021] Figure 1 This is a top view of the overall structure provided in this embodiment of the utility model;

[0022] Figure 2 This is a perspective view of the overall structure provided in an embodiment of the present utility model;

[0023] Figure 3 This is a left view of the overall structure provided in this embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the pedal control mechanism provided in an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the brake lever control mechanism provided in this embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of the front wheel clamping fixture and front wheel tightening assembly provided in this embodiment of the utility model;

[0027] Figure 7 This is an installation diagram of the front roller and the first drive assembly provided in an embodiment of the present invention.

[0028] In the diagram: 1. Test platform; 1-1. Platform frame; 1-2. Bearing plate; 1-3. Guardrail; 1-4. Ramp; 2. Front roller; 3. First concave-convex structure; 4. Rear roller; 5. Second concave-convex structure; 6. Pedal control mechanism; 6-1. Mounting bracket; 6-2. First actuator; 6-3. Brake pressure plate; 7. Brake lever control mechanism; 7-1. Mounting frame; 7-2. Second actuator; 7-3. Brake lever pressure plate; 7-4. Support plate; 7-5. Brake plate; 7-6. Second ball screw pair; 7 -7. First linkage plate; 7-8. Second linkage plate; 8. Lifting assembly; 8-1. Lifting frame; 8-2. Lifting component; 9. Mounting plate; 10. Front wheel clamping fixture; 11. Front wheel clamping assembly; 11-1. First mounting frame; 11-2. Front wheel clamping wheel; 12. Rear wheel clamping assembly; 12-1. Second mounting frame; 12-2. Rear wheel clamping wheel; 13. Cooling fan; 14. First drive assembly; 15. Second drive assembly; 16. Moving plate; 17. First ball screw pair; 18. Drive component. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0030] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] like Figures 1 to 3As shown, this application provides a comprehensive performance testing device for electric vehicles, including a test platform 1. The test platform 1 includes a platform frame 1-1 and a support plate 1-2 disposed on the platform frame 1-1. Preferably, the support plate 1-2 is composed of multiple base plates spliced ​​together, and a protective railing 1-3 is provided around the outer perimeter of the support plate 1-2, the protective railing 1-3 enclosing the test area. Preferably, a ramp 1-4 is provided on one side of the platform frame 1-1, and the ramp 1-4 and the platform frame 1-1 adopt a split structure. The split structural design of the platform frame 1-1 and the ramp 1-4 separates the vibration body, ensuring that the vibration of the test platform does not propagate outward, reducing resonance, and preventing the structure of the ramp 1-4 from disintegrating.

[0032] The platform frame 1-1 is equipped with a front roller 2 that is linked to the front wheel of the electric vehicle. The circumferential surface of the front roller 2 is detachably equipped with a first concave-convex structure 3 for simulating bumpy road conditions. The platform frame 1-1 is also equipped with a rear roller 4 that is linked to the rear wheel of the electric vehicle. The circumferential surface of the rear roller 4 is detachably equipped with a second concave-convex structure 5 for simulating bumpy road conditions. Specifically, the first concave-convex structure 3 includes multiple front protrusions, which are mounted on the circumferential surface of the front roller 2 by mounting bolts. The second concave-convex structure 5 includes multiple rear protrusions, which are mounted on the circumferential surface of the rear roller 4 by mounting bolts. Preferably, the rear protrusions are compatible with a wheelbase of 580-1100mm, and a rear protrusion is installed in the middle position of the rear roller 4, which can be used in conjunction with a front wheel fixing fixture for testing two-wheeled electric vehicles. The protrusions on the front roller 2 and rear roller 4 can be arranged in a regular or irregular pattern. The protrusions on the front roller 2 and rear roller 4 are fixed by mounting bolts, and their position and spacing can be easily adjusted as needed to simulate different types of bumpy road conditions. This makes them suitable for various testing scenarios, enhancing the flexibility and adaptability of the equipment. When the protrusions are worn or damaged, they can be quickly disassembled and replaced, reducing maintenance costs and downtime. Different shapes, sizes, and heights of protrusions can be selected according to different testing needs to simulate various real-world road conditions, such as cobblestone roads, speed bumps, and potholes, improving the equipment's versatility and practicality. By precisely arranging the position and combination of the protrusions, the bumpy conditions under complex road surfaces can be simulated more realistically, resulting in more accurate test data and helping to better evaluate the performance of electric vehicles under different road conditions.

[0033] The platform frame 1-1 is provided with a first drive assembly 14 for driving the front roller 2 to rotate. Specifically, the first drive assembly 14 includes a first motor, and the output end of the first motor is connected to the mounting shaft of the front roller 2 via a belt. The platform frame 1-1 is also provided with a second drive assembly 15 for driving the rear roller 4 to rotate. Specifically, the second drive assembly 15 includes a second motor, and the output end of the second motor is connected to the mounting shaft of the rear roller 4 via a belt.

[0034] A first through hole is provided on the support plate 1-2 corresponding to the installation position of the front roller 2, and the upper end of the front roller 2 protrudes from the support plane of the support plate 1-2 through the first through hole; a second through hole is provided on the support plate 1-2 corresponding to the installation position of the rear roller 4, and the upper end of the rear roller 4 protrudes from the support plane of the support plate 1-2 through the second through hole.

[0035] A pedal control mechanism 6 for controlling the electric vehicle's brake pedal is located on the support plate 1-2, such as... Figure 4 As shown, the pedal control mechanism 6 includes a mounting bracket 6-1 mounted on the support plate 1-2. The mounting bracket 6-1 has a first actuator 6-2 capable of reciprocating linear motion. Specifically, the first actuator 6-2 is a cylinder, and its actuating end has a brake pressure plate 6-3 for pressing the brake pedal. When the brake pedal needs to be controlled, the first actuator 6-2 is activated, and its reciprocating linear motion causes the brake pressure plate 6-3 to press the brake pedal. Preferably, the base of the mounting bracket 6-1 has a position adjustment hole along the vehicle length direction, allowing the mounting bracket 6-1 to be adjusted along the vehicle length direction by engaging with the position adjustment hole. The mounting bracket also has a height adjustment hole along the height direction, allowing the first actuator 6-2 to be adjusted along the height direction by engaging with the height adjustment hole.

[0036] The electric vehicle is equipped with a brake lever control mechanism 7 on its handlebars for controlling the brake lever, such as... Figure 5As shown, the brake lever control mechanism 7 includes a mounting frame 7-1 mounted on the handlebar. The mounting frame 7-1 is provided with a second actuator 7-2 that can reciprocate in a straight line. Specifically, the second actuator 7-2 is a cylinder, and the actuating end of the second actuator 7-2 is provided with a brake lever pressure plate 7-3 for pressing the brake lever. Preferably, the mounting frame 7-1 includes two parallel and spaced support plates 7-4, each with mounting holes for the electric vehicle handlebar to pass through. An installation space is formed between the two support plates 7-4. The second actuator 7-2 is mounted within this installation space via a bracket plate 7-5. The piston rod of the second actuator 7-2 passes through the bracket plate 7-5 and extends away from the brake lever. A second ball screw assembly 7-6 is mounted on the bracket plate 7-5. The nut of the second ball screw assembly 7-6 is located within the bracket plate 7-5. The screw of the second ball screw assembly 7-6 is parallel to the direction of movement of the piston rod of the second actuator 7-2. The end of the piston rod of the second actuator 7-2 is mounted on a first linkage plate 7-7, which is connected to the screw of the second ball screw assembly 7-6. A second linkage plate 7-8 is mounted on the end of the screw located on the brake lever side. The brake lever pressure plate 7-3 is mounted on the second linkage plate 7-8. When the brake lever needs to be controlled, the second actuator 7-2 is activated. The second actuator 7-2 pushes the first linkage plate 7-7 to move away from the brake lever. Under the drive of the screw in the second ball screw pair 7-6, the second linkage plate 7-8 moves closer to the brake lever, and the brake lever pressure plate 7-3 presses the brake lever.

[0037] A lifting assembly 8 for assembling counterweights is installed on the support plate 1-2. The lifting assembly 8 includes a lifting frame 8-1, within which the vehicle under test is placed. A lifting member 8-2, specifically an electric hoist, is installed on the lifting frame 8-1. The lifting assembly 8 can be used for assembling counterweights. Equipped with three 75kg test dummies plus a 30% redundancy, different weights of counterweights can be installed on the lifting member 8-2 to simulate the test process of an electric vehicle under different weight conditions when carrying passengers or cargo, thus recreating the complex road conditions faced by an electric vehicle in actual passenger-carrying situations.

[0038] like Figure 7As shown, the front roller is mounted on the moving plate 16 via a support frame. A first ball screw assembly 17 is installed within the platform frame 1-1. The moving plate 16 is mounted on the nut of the first ball screw assembly 17. The screw in the first ball screw assembly 17 is arranged along the length of the vehicle under test. A driving component 18 is provided at the driving end of the screw in the first ball screw assembly 17. Specifically, the driving component 18 is a stepper motor. A linear guide rail is provided on the platform frame 1-1, and the moving plate 16 is mounted on the slider of the linear guide rail. The front roller 2 can be adjusted in wheelbase between 960-1900mm. It uses a stepper motor reducer and a trapezoidal screw for button control of forward and backward movement, allowing the front roller 2 to move along the length of the vehicle. The position of the front roller 2 can be flexibly adjusted to achieve the purpose of adjusting the wheelbase, thereby adapting to the testing needs of electric vehicles with different wheelbases and improving the versatility and flexibility of the equipment.

[0039] A mounting plate 9 is provided on the bearing plate 1-2 located on the front side of the front roller 2. The mounting plate 9 is equipped with a front wheel clamping fixture 10 for clamping the front wheel of an electric vehicle. Specifically, the front wheel clamping fixture 10 includes a clamping bracket, on which a first rotating shaft is provided. A mounting base plate is provided on the first rotating shaft via a connecting rod. The mounting base plate is hinged to the connecting rod. Two opposing clamping frames are provided on the mounting base plate, and a front wheel mounting shaft is provided between the two clamping frames. When it is necessary to clamp the front wheel of the electric vehicle, the front wheel axle is removed, and the front wheel is mounted on the mounting shaft via a bushing. A front wheel clamping assembly 11 is provided on the mounting plate 9 near the front roller 2. Figure 6 As shown, the front wheel clamping assembly 11 includes a first mounting bracket 11-1, within which a front wheel clamping wheel 11-2 is rotatably mounted. The front wheel clamping fixture 10 effectively clamps the front wheel of the electric vehicle, ensuring vehicle stability during testing and improving test accuracy and safety. The front wheel clamping wheel 11-2 effectively clamps and supports the front wheel, preventing the vehicle from swaying left and right due to vibration or external forces during testing, ensuring front wheel stability and test reliability.

[0040] A rear wheel clamping assembly 12 is provided on the bearing plate 1-2 located behind the rear roller 4. The rear wheel clamping assembly 12 includes a second mounting bracket 12-1, within which a rear wheel clamping wheel 12-2 is rotatably mounted. The rear wheel clamping wheel 12-2 can effectively clamp and support the rear wheel of the electric vehicle, preventing the vehicle from swaying left and right due to vibration or external forces during the test, thus ensuring the stability of the rear wheel and the reliability of the testing process.

[0041] A cooling fan 13 is installed on the support plate 1-2, with the air outlet of the cooling fan 13 facing the vehicle under test. Preferably, three cooling fans 13 are provided, each located at a corner of the support plate 1-2. This allows for direct airflow cooling of key vehicle components, such as the motor, battery, and controller, effectively reducing the vehicle's temperature during testing and preventing performance degradation or damage due to overheating. In actual driving, the vehicle is cooled by natural wind; the cooling fans 13 simulate this natural wind cooling effect, making the test scenario closer to real road conditions and helping to evaluate the vehicle's thermal management performance in actual use.

[0042] Working process: The electric vehicle under test is moved onto the support plate 1-2 via ramp 1-4, so that the front and rear wheels of the electric vehicle stop on the front roller 2 and rear roller 4. At the same time, the front wheel clamping fixture 10 is used to fix the front wheel of the electric vehicle under test, and the front and rear wheel clamping assembly 12 is used to hold the front and rear wheels of the electric vehicle under test in place. The counterweight is hoisted onto the electric vehicle under test using the counterweight system hoisting assembly 8. The brake lever control mechanism 7 is installed on the left and right brake levers of the electric vehicle under test, and the pedal control mechanism 6 is installed on the foot brake of the electric vehicle under test.

[0043] During the bumpy road test, front and rear protrusions are installed on the front and rear rollers 4 respectively. The front and rear rollers 4 are rotated by the drive motor and pulley of the front and rear rollers 4 to simulate the test of the electric vehicle under real bumpy road conditions.

[0044] During the range test, the front and rear rollers 4 are not equipped with protrusions. The electric vehicle under test is powered to simulate the test of the electric vehicle on a smooth road. At the same time, the brake lever control mechanism 7 and the pedal control mechanism 6 are used to simulate the braking performance of the handbrake and foot brake of the electric vehicle under test under real road conditions. The power cut-off status and frequency of the electric vehicle under test during the loading of the brake lever control mechanism 7 and the pedal control mechanism 6 can be adjusted. During the test, the voltage, current, power, torque, speed and running time can be recorded in real time.

[0045] By adopting the above technical solutions, it is possible to comprehensively test the performance of electric vehicles in various aspects, such as driving stability, braking system response, and reliability under bumpy or smooth road conditions, providing more comprehensive data support for the design improvement and quality inspection of electric vehicles. The detachable first and second concave-convex structures 5 of the front and rear rollers 4 can accurately and effectively simulate the complex and varied bumpy road conditions in actual roads, providing a realistic scenario for vehicle testing. When the testing requirements change and smooth road conditions need to be simulated, a simple disassembly operation can quickly switch road conditions, greatly satisfying the diverse testing needs under different road conditions. The brake pressure plate 6-3 in the pedal control mechanism 6, through the precise linear reciprocating motion of the first actuator 6-2, can accurately simulate the force and rhythm applied by the user to the electric vehicle's brake pedal, reproducing the actual pedaling action and providing a reliable data source for braking performance testing. Meanwhile, the brake lever pressure plate 7-3 of the brake lever control mechanism 7, with the help of the linear reciprocating motion of the second actuator 7-2, can accurately simulate the user's operation of the electric vehicle brake lever under different road conditions, including changes in force and frequency adjustment, thereby comprehensively evaluating the handling performance of the electric vehicle under complex road conditions and providing strong support for the performance optimization and safety testing of the electric vehicle.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A comprehensive performance testing device for electric vehicles, characterized in that, The test platform includes a platform frame and a support plate mounted on the platform frame. The platform frame is provided with a front roller that is linked to the front wheel of the electric vehicle. The circumferential surface of the front roller is detachably provided with a first concave-convex structure for simulating bumpy road conditions. The platform frame is provided with a rear roller that is linked to the rear wheel of the electric vehicle. The circumferential surface of the rear roller is detachably provided with a second concave-convex structure for simulating bumpy road conditions. A pedal control mechanism for controlling the brake pedal of an electric vehicle is provided on the support plate. The pedal control mechanism includes a mounting bracket provided on the support plate. A first actuator that can reciprocate in a straight line is provided on the mounting bracket. The actuating end of the first actuator is provided with a brake pressure plate for pressing the pedal. The electric vehicle is equipped with a brake lever control mechanism on its handlebars for controlling the electric vehicle brake lever. The brake lever control mechanism includes a mounting frame fitted on the handlebars. The mounting frame is equipped with a second actuator that can reciprocate in a straight line. The actuating end of the second actuator is equipped with a brake lever pressure plate for pressing the brake lever.

2. The electric vehicle comprehensive performance testing equipment according to claim 1, characterized in that, A lifting assembly for lifting and assembling weights is provided on the bearing plate. The lifting assembly includes a lifting frame, the vehicle under test is placed inside the lifting frame, and lifting components are provided on the lifting frame.

3. The electric vehicle comprehensive performance test device according to claim 1, characterized by The front roller is mounted on the moving plate via a support frame. A first ball screw pair is provided within the platform frame. The moving plate is mounted on the nut of the first ball screw pair. The screw in the first ball screw pair is arranged along the length of the vehicle being tested. A driving component is provided at the driving end of the screw in the first ball screw pair.

4. The electric vehicle comprehensive performance test device according to claim 1, characterized by A mounting plate is provided on the bearing plate located on the front side of the front roller. A front wheel clamping fixture for clamping the front wheel of the electric vehicle is provided on the mounting plate near the front roller. A front wheel clamping assembly is provided on the mounting plate near the front roller. The front wheel clamping assembly includes a first mounting frame, in which a front wheel clamping wheel is rotatably disposed.

5. The electric vehicle comprehensive performance test device according to claim 1, characterized by A rear wheel clamping assembly is provided on the bearing plate located behind the rear roller. The rear wheel clamping assembly includes a second mounting bracket, in which a rear wheel clamping wheel is rotatably disposed.

6. The electric vehicle comprehensive performance test device according to claim 1, characterized by A cooling fan is installed on the support plate, and the air outlet of the cooling fan faces the vehicle being tested.

7. The electric vehicle comprehensive performance test device according to claim 1, characterized by The first concave-convex structure includes multiple front protrusions, which are mounted on the circumferential surface of the front roller by mounting bolts; the second concave-convex structure includes multiple rear protrusions, which are mounted on the circumferential surface of the rear roller by mounting bolts.

8. The electric vehicle comprehensive performance test device according to claim 1, characterized by The platform frame is provided with a first drive component for driving the front roller to rotate; the platform frame is provided with a second drive component for driving the rear roller to rotate.

9. The electric vehicle comprehensive performance test device according to claim 1, wherein A first through hole is provided on the support plate corresponding to the installation position of the front roller, and the upper end of the front roller protrudes from the support plane of the support plate through the first through hole; a second through hole is provided on the support plate corresponding to the installation position of the rear roller, and the upper end of the rear roller protrudes from the support plane of the support plate through the second through hole.

10. The electric vehicle comprehensive performance test device according to claim 1, characterized by, A ramp is provided on one side of the platform frame, and the ramp and the platform frame adopt a split structure.

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