Intelligent electric vehicle riding simulation durability test equipment

Abstract

The invention discloses an intelligent electric vehicle riding simulation durability test device comprising a rack which is provided with a test platform; the front wheel fixing frame and the rear wheel fixing frame are arranged on the test platform; the front wheel adjustable lifting pad table and the rear wheel adjustable lifting pad table are arranged on the test platform, the front wheel adjustable lifting pad table and the rear wheel adjustable lifting pad table are respectively provided with a front group of rollers and a rear group of rollers, the rollers are used for supporting the front end and the rear end of a front wheel or a rear wheel, and magnetic powder dampers are arranged in the rollers; the handlebar stabilizing device is arranged on the upper side of the rack; the oscillating cylinder is arranged on the upper side of the rack and used for driving an electric vehicle pedal to operate. According to the invention, the swing cylinder simulates a rider to carry out power-assisted driving on the pedals, and the force sensor measures and monitors forces loaded to different positions of the pedals in real time; the center shaft driving system is connected to the simulation damper at the other end through a chain wheel and a chain, different damping torque values can be loaded to the driving system according to test requirements, various working conditions of real vehicle power-assisted riding are simulated, and test detection is comprehensive and accurate.

Description

Technical Field

[0001] The invention belongs to the technical field of intelligent electric bicycle riding simulation, and in particular relates to an intelligent electric bicycle riding simulation endurance testing device. Background Art

[0002] Smart electric bicycles are vehicles that use lithium batteries as auxiliary energy sources, and are based on ordinary bicycles and equipped with motors, controllers, lithium batteries, throttles, brakes and other operating components and display instrument systems. Compared with traditional electric vehicles, they are lighter and more labor-saving to ride, and are increasingly favored by urban users.

[0003] At present, the simulation test of electric bicycles is only a separate test of the pedals or batteries based on traditional bicycles. There is no test on the force of the left and right pedals of the electric bicycles and the uphill and downhill tests during simulated riding. Therefore, it is impossible to conduct fatigue endurance tests on the entire drive system of the electric bicycle and provide customers with the most practical riding data reference.

[0004] Therefore, a comprehensive and accurate intelligent electric vehicle riding simulation durability testing equipment is in urgent need of research. Summary of the invention

[0005] In view of this, the technical problem to be solved by the present invention is to provide a smart electric vehicle riding simulation endurance testing device, which is used to avoid the trouble of lack of simulated riding assistance tests for previous smart electric vehicles.

[0006] In order to solve the above technical problems, the present invention discloses a smart electric vehicle riding simulation durability test device, comprising: A rack, the rack having a test platform; A front wheel fixing frame and a rear wheel fixing frame are arranged on the test platform, and both the front wheel fixing frame and the rear wheel fixing frame have limiting rings sleeved to the front and rear wheel hubs of the electric vehicle; A front wheel adjustable lifting pad and a rear wheel adjustable lifting pad are arranged on the test platform, and the front wheel adjustable lifting pad and the rear wheel adjustable lifting pad are respectively equipped with two sets of front and rear rollers, the rollers are used to support the front and rear ends of the front wheel or the rear wheel, and the rollers have built-in magnetic powder dampers; A handlebar stabilizing device disposed on the upper side of the frame; The swing cylinder is arranged on the upper side of the frame and is used to drive the pedal of the electric vehicle to operate. The swing cylinder is arranged on the left and right sides, and a first force sensor is arranged at the rear end, and the front end is connected to the pedal of the electric vehicle through a force plate.

[0007] According to one embodiment of the present invention, the front-to-rear distance between the rollers is adjustable.

[0008] According to one embodiment of the present invention, a plurality of second force sensors at different positions are installed between the force-bearing plate and the pedal.

[0009] According to one embodiment of the present invention, the frame is further provided with a weight corresponding to the electric vehicle seat.

[0010] According to one embodiment of the present invention, a horizontal hanger is also installed on the upper end of the frame.

[0011] According to one embodiment of the present invention, the driving system of the electric vehicle itself is a mid-axis motor connecting the chainring and the chain, and the mid-axis motor is equipped with a simulated damper. Different damping torque values ​​can be loaded on the driving system according to test requirements to achieve various working conditions that simulate real vehicle riding.

[0012] According to an embodiment of the present invention, one side of the rack is also provided with an electrically connected control system, and the control system is selected from NI LABVIEW of the United States.

[0013] Compared with the prior art, the present invention can achieve the following technical effects: The cyclist's power-assisted pedaling is simulated by a swinging cylinder, and the force sensor measures and monitors in real time the forces applied to the pedals at different positions. The middle shaft drive system is connected to the simulated damper at the other end through the chainring and chain. Different damping torque values ​​can be loaded on the drive system according to the test requirements to simulate various working conditions of real-life power-assisted riding. The test detection is comprehensive and accurate.

[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the above-mentioned technical effects at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is a schematic diagram of a smart electric vehicle riding simulation endurance testing device according to an embodiment of the present invention. Figure ID

[0016] Frame 10, test platform 20, front wheel fixing frame 31, rear wheel fixing frame 32, front wheel adjustable lifting pad 41, rear wheel adjustable lifting pad 42, roller 50, handlebar stabilizing device 60, swing cylinder 70, horizontal hanger 80, middle shaft motor 90. DETAILED DESCRIPTION

[0017] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0018] Please refer to Figure 1 , Figure 1 It is a schematic diagram of a smart electric vehicle riding simulation endurance testing device according to an embodiment of the present invention.

[0019] As shown in the figure, a smart electric vehicle riding simulation durability test equipment includes: a frame 10, the frame 10 has a test platform 20; a front wheel fixing frame 31 and a rear wheel fixing frame 32 arranged on the test platform 20, the front wheel fixing frame 31 and the rear wheel fixing frame 32 both have limit rings sleeved on the front and rear wheel hubs of the electric vehicle; a front wheel adjustable lifting pad 41 and a rear wheel adjustable lifting pad 42 arranged on the test platform 20, and the front wheel adjustable lifting pad 41 and the rear wheel adjustable lifting pad 42 are respectively installed with front and rear groups of rollers 50, the rollers 50 are used to support the front and rear ends of the front wheel or the rear wheel, and the rollers 50 have built-in magnetic powder dampers; a handlebar stabilizing device 60 arranged on the upper side of the frame 10; a swing cylinder 70 arranged on the upper side of the frame 10 and used to drive the electric vehicle pedal to operate, the swing cylinder 70 is arranged on the left and right sides, and a first force sensor is arranged at the rear end, and the front end is connected to the electric vehicle pedal through a force plate.

[0020] In one embodiment of the present invention, a horizontal hanger 80 is also installed on the upper end of the frame 10 for hoisting the electric bicycle to the test platform 20. The test platform 20 is provided with a front wheel fixing frame 31, a rear wheel fixing frame 32, a front wheel adjustable lifting pad 41, a rear wheel adjustable lifting pad 42, and a handlebar stabilizing device 60 corresponding to the electric bicycle, which cooperate with each other to complete the stable balance of the whole vehicle, which is convenient for subsequent testing. The front wheel adjustable lifting pad 41 and the rear wheel adjustable lifting pad 42 respectively support and limit the wheels through double rollers 50, and provide a damping effect at the same time. The pedals of the electric bicycle are swung by the swing cylinders 70 on both sides to simulate the user's riding. The swing cylinder 70 is selected from the second set of Japanese SMC, which can realize forward and reverse bidirectional rotation, and the rear end has a first force sensor to simulate the riding force required when the whole vehicle is subjected to different loads. In addition, a force plate is provided between the front end of the swing cylinder 70 and the pedal, and a plurality of second force sensors at different positions are installed between the force plate and the pedal for real-time measurement and monitoring of the force applied to the pedal at different positions, so as to make the simulation more comprehensive and accurate.

[0021] The front wheel adjustable lifting platform 41 and the rear wheel adjustable lifting platform 42 adopt a lifting mechanism, which can provide slope simulation, achieve three road conditions of uphill, downhill and flat road, and simulate driving alternately within a set time to conduct a durability test. The front and rear spacing of the roller 50 is adjustable to facilitate adaptation to wheels of different sizes.

[0022] The frame 10 is also provided with weights corresponding to the electric vehicle seat. When conducting a simulated road condition test, the load is loaded using a counterweight to simulate the load during riding; the vehicle is constrained in the front and rear directions during the test; when a cylinder is used to load the simulated load, automatic loading can be set by a computer according to the test requirements.

[0023] The electric vehicle's own driving system is a central axis motor 90 connecting the sprocket and the chain. The central axis motor 90 is equipped with a simulated damper. Different damping torque values ​​can be loaded on the driving system according to the test requirements to achieve various working conditions that simulate real vehicle riding.

[0024] An electrically connected control system is also provided on one side of the rack. The control system is selected from NI LABVIEW of the United States. In addition to the function of setting the parameters required for the operation of the system, the software should be able to display the real-time parameters of the central axis motor, including voltage, current, speed, torque (torque of the torque sensor in the central axis motor), and calculate the efficiency of the entire system and display it in a waveform diagram. The communication protocol of the central axis motor is provided by the buyer. The efficiency calculation formula of the entire system is: Efficiency = (power of load damping - power of cylinder) ÷ power of load damping.

[0025] The present invention adopts a test method for the force on the left and right pedals of the power-assisted electric bicycle, simulating the uphill and downhill tests during riding. The speed, test time, slope (damping), etc. can be set by the control software to perform fatigue endurance tests on the overall drive system of the electric power-assisted bicycle, providing customers with the most practical riding data reference.

[0026] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A smart electric vehicle riding simulation durability test device, characterized in that: include: A rack having a test platform; A front wheel fixing frame and a rear wheel fixing frame are arranged on the test platform, and the front wheel fixing frame and the rear wheel fixing frame both have limiting rings sleeved to the front and rear wheel hubs of the electric vehicle; A front wheel adjustable lifting pad and a rear wheel adjustable lifting pad are arranged on the test platform, and the front wheel adjustable lifting pad and the rear wheel adjustable lifting pad are respectively installed with two groups of front and rear rollers, the rollers are used to support the front and rear ends of the front wheel or the rear wheel, and the rollers have built-in magnetic powder dampers; A handlebar stabilizing device disposed on the upper side of the frame; A swing cylinder is arranged on the upper side of the frame and is used to drive the pedal of the electric vehicle. The swing cylinder is arranged on the left and right sides, and a first force sensor is arranged at the rear end, and the front end is connected to the pedal of the electric vehicle through a force plate.

2. The intelligent electric vehicle riding simulation durability test equipment according to claim 1 is characterized in that: The front and rear spacing of the rollers is adjustable.

3. The intelligent electric vehicle riding simulation durability test equipment according to claim 1 is characterized in that: A plurality of second force sensors at different positions are installed between the force-bearing plate and the pedal.

4. The intelligent electric vehicle riding simulation durability test equipment according to claim 1 is characterized in that: The frame is also provided with a weight corresponding to the electric vehicle seat.

5. The intelligent electric vehicle riding simulation durability test equipment according to claim 1 is characterized in that: A horizontal hanger is also installed on the upper end of the frame.

6. The intelligent electric vehicle riding simulation durability test equipment according to claim 1 is characterized in that: The driving system of the electric vehicle itself is a mid-axis motor connecting the sprocket and the chain. The mid-axis motor is equipped with a simulated damper. Different damping torque values ​​can be loaded on the driving system according to test requirements to achieve various working conditions that simulate real vehicle riding.

7. The intelligent electric vehicle riding simulation durability test equipment according to claim 1 is characterized in that: One side of the rack is also provided with an electrically connected control system, and the control system is selected from NI LABVIEW of the United States.

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