Test Method for Energy Endurance Mileage of Electric Scooters

Abstract

The present invention discloses a method for testing the energy endurance mileage of an electric unicycle, which comprises the following steps: First, the electric unicycle is installed in place; Second, the pull-press dynamometer is zeroed; Third, pressure is applied to the electric unicycle; Fourth, a reverse resistance is given to the electric unicycle and the electric unicycle and the load motor are started; Fifth, the acceleration or deceleration state of the electric unicycle is adjusted; Sixth, after the electric unicycle stops, the energy endurance mileage is calculated. By using a loading rod to apply pressure to the vehicle body, the present invention can load the test mass according to the test requirements, accurately obtain the loading data through the pull-press dynamometer, use the load motor to drive the driving roller to provide resistance to the electric unicycle and the resistance is adjustable, rotate the gantry to drive the loading rod to rotate to simulate the forward or backward leaning of a person, simulate the acceleration or deceleration state of the electric unicycle, and the computer converts the motor speed collected by the encoder into the vehicle speed of the electric unicycle, and combines the outer diameter of the driving roller and the test time obtained by the timer to obtain the energy endurance mileage of the electric unicycle.

Description

Technical Field

[0001] The invention belongs to the technical field of the energy endurance mileage test of electric unicycles, and particularly relates to a method for testing the energy endurance mileage of an electric unicycle. Background Art

[0002] An electric unicycle is also called a body-sensing vehicle. It is a new type of transportation tool that is born in response to market demand and integrates super portability, unique controllability and driving pleasure. The driving mode of an electric unicycle is to use the gyroscope and acceleration sensor inside the vehicle body to detect the changes in the forward and backward tilting postures of the vehicle body, and use the servo control system to accurately drive the motor to perform corresponding acceleration and deceleration adjustments to achieve the purpose of balanced driving. With the continuous enrichment of products on the market, the inspection and testing of such products are also synchronously followed up. According to relevant test specifications and standard requirements, in order to evaluate the product quality of electric unicycles, it is necessary to conduct endurance mileage tests and durability and reliability tests on electric unicycles. Usually, this test is completed by manual driving, which is labor-intensive and prone to safety accidents due to fatigue driving. Therefore, according to the test needs and the characteristics of the vehicle, there is currently a lack of a test device for an autonomous driving unicycle and a method for the durability and reliability test of an unicycle that can replace manual labor. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a method for testing the energy endurance mileage of an electric unicycle in view of the deficiencies in the above-mentioned prior art. By pressing on the vehicle body with a loading rod, the test mass can be loaded according to the test requirements, and the loading data can be accurately obtained through a tension and compression force measuring instrument. The load motor is used to drive the driving roller to provide resistance to the electric unicycle, and the resistance is adjustable. The rotating gantry drives the loading rod to rotate to simulate the forward or backward tilt of a person, simulating the acceleration or deceleration state of the electric unicycle. The computer converts the motor speed collected by the encoder into the vehicle speed of the electric unicycle, and combines the outer diameter of the driving roller and the test time obtained by the timer to obtain the energy endurance mileage of the electric unicycle, replacing the manual test by the tester, which is safe, effective and convenient for popularization and use.

[0004] To solve the above technical problems, the technical solution adopted by the present invention is: a method for testing the energy cruising range of an electric unicycle, which uses an electric unicycle energy cruising range testing system to test the energy cruising range of the electric unicycle. The electric unicycle energy cruising range testing system includes two oppositely arranged support frames. The support frame is a double-peak support frame. The double-peak support frame includes a first support peak plate and a second support peak plate. A trough groove is formed between the first support peak plate and the second support peak plate. A driving roller is installed between the two first support peak plates, and a follower roller is installed between the two second support peak plates. A load motor for driving the driving roller to rotate is arranged outside one of the first support peak plates. A gantry rotating rod for connecting the bottom of the gantry is arranged between the two trough grooves. A double-output shaft motor is arranged on the outer side wall of one of the double-peak support frames at the position of the trough groove. The first output shaft of the motor of the double-output shaft motor is connected to one vertical rod of the gantry, and the second output shaft of the motor of the double-output shaft motor is connected to one end of the gantry rotating rod. The other end of the gantry rotating rod is connected to the other vertical rod of the gantry. Two hollow-structured guiding threaded tubes are arranged at the bottom of the top cross bar of the gantry. One end of a loading rod sequentially passes through the top cross bar of the gantry and the guiding threaded tube and is connected to a pedal. Two pull rods are arranged on the top cross bar of the gantry at positions outside the two guiding threaded tubes. One end of a pull and compression force measuring instrument is connected to the bottom of the pull rod, and the other end of the pull and compression force measuring instrument is connected to the pedal;

[0005] An encoder for measuring the rotation speed of the load motor is installed on the output shaft of the load motor. The signal output end of the encoder is connected to the signal input end of a computer. A timer is connected to the computer. Both the double-output shaft motor and the load motor are controlled by the computer;

[0006] It is characterized in that the method includes the following steps:

[0007] Step 1: Installation of the electric unicycle in place: Place the electric unicycle directly above the follower roller and the driving roller, and adjust the elongation of the loading rod and the pull rod until the pedal contacts the upper surface of the standing area of the electric unicycle;

[0008] Step 2: Zero adjustment of the pull and compression force measuring instrument: When the pedal contacts the upper surface of the standing area of the electric unicycle and the loading rod does not apply pressure to the electric unicycle, adjust the pull and compression force measuring instrument to the zero position at this time;

[0009] Step 3: Apply pressure to the electric unicycle: Adjust the elongation of the loading rod and keep the pull rod stationary. When the loading rod elongates, it drives the pull and compression force measuring instrument to elongate and be stressed. The tire of the electric unicycle is squeezed and buffered until the pull and compression force measuring instrument shows that the applied pressure reaches the design value, and then stop rotating the loading rod to elongate;

[0010] Step 4. Apply reverse resistance to the electric unicycle and start the electric unicycle and the load motor: According to the self-weight of the electric unicycle and the applied pressure, set the design value of the reverse resistance for the electric unicycle. The computer starts the load motor in the reverse direction according to the running direction of the electric unicycle and simultaneously starts the electric unicycle, so that the electric unicycle runs smoothly according to the set driving resistance.

[0011] After the electric unicycle starts, the timer starts timing, and the encoder measures the real-time speed of the load motor.

[0012] Step 5. Adjust the acceleration or deceleration state of the electric unicycle: The computer controls the rotation of the double-output shaft motor. The rotation of the double-output shaft motor drives the gantry to rotate and tilt. The tilting of the gantry drives the loading rod to tilt, and the tilting of the loading rod controls the tilting of the electric unicycle, simulating the forward or backward tilt of the electric unicycle controlled by the test personnel.

[0013] When the gyroscope inside the electric unicycle detects that the electric unicycle tilts forward, the electric unicycle accelerates.

[0014] When the gyroscope inside the electric unicycle detects that the electric unicycle tilts backward, the electric unicycle decelerates.

[0015] During the running stage of the electric unicycle, the timer continues to time, and the encoder continues to measure the real-time speed of the load motor.

[0016] Step 6. Calculate the energy cruising range after the electric unicycle stops: When the electric unicycle stops running after the energy is exhausted, the timer stops timing, the computer controls the load motor to stop, and the computer determines the energy cruising range of the electric unicycle according to the speed of the load motor measured by the encoder, the outer diameter of the driving roller, and the timing time.

[0017] The above method for testing the energy cruising range of an electric unicycle is characterized in that: it further includes a hollow table body. A test opening and a long hole are provided at the top of the hollow table body. One vertical rod of the gantry extends out of the long hole, and the tops of the driving roller and the follower roller and the other vertical rod of the gantry extend out of the test opening.

[0018] The above method for testing the energy cruising range of an electric unicycle is characterized in that: a load motor rotating shaft for installing the driving roller is provided between the two first support peak plates. The load motor applies resistance to the driving roller through the load motor rotating shaft. A support shaft for installing the follower roller is provided between the two second support peak plates.

[0019] The above method for testing the energy cruising range of an electric unicycle is characterized in that: there is a gap between the follower roller and the driving roller, and the width of the gap is less than the diameter of the tire of the electric unicycle.

[0020] The above-mentioned method for testing the energy endurance mileage of an electric unicycle is characterized in that the bottom surface of the pedal is matched with the upper surface of the standing area of the electric unicycle.

[0021] The above-mentioned method for testing the energy endurance mileage of an electric unicycle is characterized in that an external thread is provided outside the loading rod, and the loading rod is threadedly connected with the guiding threaded tube.

[0022] The above-mentioned method for testing the energy endurance mileage of an electric unicycle is characterized in that a handle is installed at the other end of the loading rod.

[0023] The above-mentioned method for testing the energy endurance mileage of an electric unicycle is characterized in that wear-resistant layers are provided outside the follower rollers and the driving rollers.

[0024] The above-mentioned method for testing the energy endurance mileage of an electric unicycle is characterized in that a display is connected to the signal output end of the computer.

[0025] The present invention has the following advantages compared with the prior art:

[0026] 1. In the present invention, the guiding threaded tube and the pull rod are installed through the gantry. One end of the loading rod sequentially passes through the top cross bar of the gantry and the guiding threaded tube and is connected to the pedal. The bottom surface of the pedal is matched with the upper surface of the standing area of the electric unicycle. By applying pressure to the vehicle body with the loading rod, the test mass can be loaded according to the test requirements. One end of the tension and compression force measuring instrument is connected to the bottom of the pull rod, and the other end of the tension and compression force measuring instrument is connected to the pedal. The elongation of the loading rod drives the elongation of the tension and compression force measuring instrument, and the loading data can be accurately obtained through the tension and compression force measuring instrument, which is convenient for popularization and use.

[0027] 2. In the present invention, the driving roller is driven by the load motor to provide resistance to the electric unicycle. When the electric unicycle is started, the tires of the electric unicycle rotate and slide friction with the driving roller to consume electric energy. The resistance provided by the reverse rotation of the load motor is adjustable, and the energy endurance ability of the electric unicycle under different resistances can be simulated.

[0028] 3. The design of the present invention is novel and reasonable. Since the driving mode of the electric unicycle is to use the gyroscope and acceleration sensor inside the vehicle body to detect the changes in the forward and backward postures of the vehicle body, and use the vehicle-mounted servo control system to accurately perform corresponding acceleration and deceleration adjustments. In the present invention, by setting a double-output shaft motor, the first output shaft of the motor of the double-output shaft motor is connected to a vertical rod of the gantry, and the second output shaft of the motor of the double-output shaft motor is connected to one end of the rotating rod of the gantry. The other end of the rotating rod of the gantry is connected to another vertical rod of the gantry. The rotation of the two output shafts of the double-output shaft motor can drive the gantry to rotate. After the gantry rotates and tilts, the loading rod drives the electric unicycle to lean forward or backward, simulating the forward or backward of a person, and testing the energy endurance mileage of the electric unicycle in the acceleration or deceleration state, replacing the manual test by the tester, which is safe and effective and convenient for popularization and use.

[0029] 4. An encoder for measuring the rotational speed of the load motor is installed on the output shaft of the load motor of the present invention. The signal output end of the encoder is connected to the signal input end of the computer, and a timer is connected to the computer. The computer converts the rotational speed of the motor collected by the encoder into the vehicle speed of the electric unicycle, and combines the outer diameter of the driving roller and the test time obtained by the timer to obtain the energy cruising range of the electric unicycle, replacing the manual test by the tester, which is safe and effective.

[0030] In summary, the present invention has a novel and reasonable design. By using the loading rod to apply pressure to the vehicle body, the test mass can be loaded according to the test requirements, and the loading data can be accurately obtained through the tension and compression force measuring instrument. The driving roller is driven by the load motor to provide resistance to the electric unicycle, and the resistance is adjustable. The rotating gantry drives the loading rod to rotate to simulate the forward or backward leaning of a person, simulating the acceleration or deceleration state of the electric unicycle. The computer converts the rotational speed of the motor collected by the encoder into the vehicle speed of the electric unicycle, and combines the outer diameter of the driving roller and the test time obtained by the timer to obtain the energy cruising range of the electric unicycle, replacing the manual test by the tester, which is safe and effective and convenient for popularization and use.

[0031] The technical solution of the present invention will be further described in detail below with reference to the drawings and embodiments. Description of the Drawings

[0032] Figure 1 It is a schematic structural connection diagram of the test system adopted by the present invention.

[0033] Figure 2 It is a schematic structural connection diagram of the gantry, support frame and rollers of the present invention.

[0034] Figure 3 It is a circuit principle block diagram of the test system adopted by the present invention.

[0035] Figure 4 It is a flow block diagram of the method of the present invention.

[0036] Description of the Reference Numerals:

[0037] 1 - hollow table body; 2 - test port; 3 - long strip hole;

[0038] 4 - support frame; 5 - double output shaft motor; 6 - gantry;

[0039] 7 - load motor; 8 - driving roller; 9 - follower roller;

[0040] 10 - electric unicycle; 11 - tire; 12 - guiding threaded tube;

[0041] 13 - loading rod; 14 - pedal; 15 - pull rod;

[0042] 16 - Tensile and compressive force measuring instrument; 17 - Handle; 18 - First support peak plate;

[0043] 19 - Second support peak plate; 20 - Load motor rotating shaft; 21 - Support shaft;

[0044] 22 - First output shaft of the motor; 23 - Computer; 24 - Encoder;

[0045] 25 - Timer; 26 - Display. Detailed implementation mode

[0046] As Figures 1 to 4 shown, for the method for testing the energy cruising range of an electric scooter of the present invention, the energy cruising range of the electric scooter is tested by using an energy cruising range test system for the electric scooter. The energy cruising range test system for the electric scooter includes two oppositely arranged support frames 4. The support frames 4 are double-peak-shaped support frames. The double-peak-shaped support frame includes a first support peak plate 18 and a second support peak plate 19. A trough groove is formed between the first support peak plate 18 and the second support peak plate 19. Active rollers 8 are installed between the two first support peak plates 18. Follow-up rollers 9 are installed between the two second support peak plates 19. A load motor 7 for driving the active rollers 8 to rotate is arranged outside one of the first support peak plates 18. A gantry rotating rod for connecting the bottom of the gantry 6 is arranged between the two trough grooves. A double-output shaft motor 5 is arranged on the outer wall of one of the double-peak-shaped support frames at the trough groove position. The first output shaft 22 of the motor of the double-output shaft motor 5 is connected to one vertical rod of the gantry 6. The second output shaft of the motor of the double-output shaft motor 5 is connected to one end of the gantry rotating rod. The other end of the gantry rotating rod is connected to the other vertical rod of the gantry 6. Two hollow-structured guiding threaded tubes 12 are arranged at the bottom of the top cross bar of the gantry 6. One end of a loading rod 13 sequentially passes through the top cross bar of the gantry 6 and the guiding threaded tube 12 and is connected to a pedal 14. Two pull rods 15 are arranged on the top cross bar of the gantry 6 at positions outside the two guiding threaded tubes 12. One end of a tensile and compressive force measuring instrument 16 is connected to the bottom of the pull rod 15. The other end of the tensile and compressive force measuring instrument 16 is connected to the pedal 14;

[0047] An encoder 24 for measuring the rotation speed of the load motor 7 is installed on the output shaft of the load motor 7. The signal output end of the encoder 24 is connected to the signal input end of the computer 23. A timer 25 is connected to the computer 23. Both the double-output shaft motor 5 and the load motor 7 are controlled by the computer 23;

[0048] The test method includes the following steps:

[0049] Step 1. Installation and positioning of the electric unicycle: Place the electric unicycle 10 directly above the following rollers 9 and the driving rollers 8, and adjust the loading rod 13 and the pull rod 15 to extend until the pedal 14 contacts the upper surface of the standing area of the electric unicycle 10;

[0050] Step 2. Zero adjustment of the tension and compression force gauge: When the pedal 14 contacts the upper surface of the standing area of the electric unicycle 10 and the loading rod 13 does not apply pressure to the electric unicycle 10, adjust the tension and compression force gauge 16 to the zero position at this time;

[0051] Step 3. Applying pressure to the electric unicycle: Adjust the loading rod 13 to extend, keep the pull rod 15 stationary. While the loading rod 13 extends, it drives the tension and compression force gauge 16 to extend and be stressed, and the tire 11 of the electric unicycle 10 is squeezed and buffered to be stressed until the tension and compression force gauge 16 shows that the applied pressure reaches the design value, then stop rotating the loading rod 13 to extend;

[0052] Step 4. Applying reverse resistance to the electric unicycle and starting the electric unicycle and the load motor: According to the self-weight of the electric unicycle 10 and the applied pressure, set the design value of the reverse resistance for the electric unicycle 10. The computer 23 reversely starts the load motor 7 according to the running direction of the electric unicycle 10, and at the same time starts the electric unicycle 10 to make the electric unicycle 10 run smoothly according to the set running resistance;

[0053] After the electric unicycle 10 starts, the timer 25 starts timing, and the encoder 24 measures the real-time speed of the load motor 7;

[0054] Step 5. Adjusting the acceleration or deceleration state of the electric unicycle: The computer 23 controls the double-output shaft motor 5 to rotate. The rotation of the double-output shaft motor 5 drives the gantry 6 to rotate and tilt. The tilting of the gantry 6 further drives the loading rod 13 to tilt, and the tilting of the loading rod 13 further controls the tilting of the electric unicycle 10 to simulate the tester controlling the forward or backward tilt of the electric unicycle 10;

[0055] When the gyroscope inside the electric unicycle 10 detects that the electric unicycle 10 is tilting forward, the electric unicycle 10 accelerates;

[0056] When the gyroscope inside the electric unicycle 10 detects that the electric unicycle 10 is tilting backward, the electric unicycle 10 decelerates;

[0057] During the running stage of the electric unicycle 10, the timer 25 continues to time, and the encoder 24 continues to measure the real-time speed of the load motor 7;

[0058] Step 6. Calculate the energy cruising range after the electric scooter stops: When the energy of the electric scooter 10 is exhausted and it stops running, the timer 25 stops timing, the computer controls the load motor 7 to stop, and the computer determines the energy cruising range of the electric scooter 10 based on the rotational speed of the load motor 7 measured by the encoder 24, the outer diameter of the driving roller 8, and the timing time.

[0059] It should be noted that the guiding threaded pipe 12 and the pull rod 15 are installed through the gantry 6. One end of the loading rod 13 sequentially passes through the top cross bar of the gantry 6 and the guiding threaded pipe 12 to be connected to the pedal 14. The bottom surface of the pedal 14 is matched with the upper surface of the standing area of the electric scooter 10. By pressing the vehicle body with the loading rod 3, the test mass can be loaded according to the test requirements. One end of the tension and compression force measuring instrument 16 is connected to the bottom of the pull rod 15, and the other end of the tension and compression force measuring instrument 16 is connected to the pedal 14. When the loading rod 3 extends, it drives the tension and compression force measuring instrument 16 to extend, and accurate loading data can be obtained through the tension and compression force measuring instrument 16; the driving roller 8 is driven by the load motor 7 to provide resistance to the electric scooter 10. When the electric scooter 10 is started, the tire 11 of the electric scooter 10 rotates and slides against the driving roller 8 to consume electrical energy. The resistance provided by the reverse rotation of the load motor 7 is adjustable, and the energy cruising ability of the electric scooter 10 under different resistances can be simulated.

[0060] In actual use, since the driving mode of the electric scooter is to use the gyroscope and acceleration sensor inside the vehicle body to detect the changes in the forward and backward tilting postures of the vehicle body, and use the vehicle-mounted servo control system to accurately perform corresponding acceleration and deceleration adjustments. In the present invention, a double-output shaft motor 5 is provided. The first output shaft 22 of the motor of the double-output shaft motor 5 is connected to a vertical rod of the gantry 6, and the second output shaft of the motor of the double-output shaft motor 5 is connected to one end of the rotating rod of the gantry. The other end of the rotating rod of the gantry is connected to another vertical rod of the gantry 6. The rotation of the two output shafts of the double-output shaft motor 5 can drive the gantry to rotate. After the gantry 6 rotates and tilts, the loading rod 13 drives the electric scooter 10 to tilt forward or backward, simulating the forward or backward tilting of a person, and simulating the acceleration or deceleration state of the electric scooter. An encoder 24 for measuring the rotational speed of the load motor 7 is installed on the output shaft of the load motor 7. The signal output end of the encoder 24 is connected to the signal input end of the computer 23. A timer 25 is connected to the computer 23. The computer converts the motor rotational speed collected by the encoder into the vehicle speed of the electric scooter, and combines the outer diameter of the driving roller 8 and the test time obtained by the timer to obtain the energy cruising range of the electric scooter, replacing the manual test by the tester, which is safe and effective.

[0061] In this embodiment, it further includes a hollow table body 1. A test port 2 and a long strip hole 3 are opened at the top of the hollow table body 1. One vertical rod of the gantry 6 extends out of the long strip hole 3, and the tops of the driving roller 8 and the follower roller 9 and another vertical rod of the gantry 6 extend out of the test port 2.

[0062] It should be noted that the purpose of setting the hollow truncated cone 1 is to place both the driving roller 8 and the follower roller 9 inside the experimental table, avoiding the influence of artificial external factors on the test and ensuring the test safety.

[0063] In this embodiment, a load motor rotating shaft 20 for installing the driving roller 8 is arranged between the two first support peak plates 18, and the load motor 7 applies resistance to the driving roller 8 through the load motor rotating shaft 20. A support shaft 21 for installing the follower roller 9 is arranged between the two second support peak plates 19.

[0064] In this embodiment, there is a gap between the follower roller 9 and the driving roller 8, and the width of the gap is smaller than the diameter of the tire 11 of the electric unicycle 10.

[0065] It should be noted that the width of the gap is smaller than the diameter of the tire 11 of the electric unicycle 10, ensuring that the electric unicycle 10 can be placed between the follower roller 9 and the driving roller 8 and is in rotational contact fit with the follower roller 9 and the driving roller 8.

[0066] In this embodiment, the bottom surface of the pedal 14 is matched with the upper surface of the standing area of the electric unicycle 10.

[0067] In this embodiment, the loading rod 13 is externally provided with external threads, and the loading rod 13 is threadedly connected to the guiding threaded tube 12. The guiding threaded tube 12 can lock the pressure applied by the loading rod 13 and the pedal 14 to the upper surface of the standing area of the electric unicycle 10, avoiding the unloading of the loading rod 13.

[0068] In this embodiment, a handle 17 is installed at the other end of the loading rod 13.

[0069] In this embodiment, wear-resistant layers are provided outside the follower roller 9 and the driving roller 8, which cooperate with the load motor 7 to provide resistance to the electric unicycle 10.

[0070] In this embodiment, the signal output end of the computer 23 is connected to a display 26.

[0071] When the present invention is in use, place the electric scooter 10 between the follower rollers 9 and the driving rollers 8. According to the test requirements, determine the loading mass, driving resistance, and acceleration / deceleration state. Press on the vehicle body using the loading rod, which can load the test mass according to the test requirements, and accurately obtain the loading data through the tension and compression dynamometer. Drive the driving rollers with the load motor to provide adjustable resistance to the electric scooter. Rotate the gantry to drive the loading rod to rotate to simulate the forward or backward lean of a person, simulating the acceleration or deceleration state of the electric scooter. Turn on the electric scooter 10, and the electric scooter 10 operates in the test state until the electric energy is consumed. The computer converts the motor speed collected by the encoder into the vehicle speed of the electric scooter, combines the outer diameter of the driving roller 8 and the test time obtained by the timer to obtain the energy cruising range of the electric scooter, replacing the manual test by the tester, which is safe and effective.

[0072] The above are only the preferred embodiments of the present invention and do not impose any limitations on the present invention. Any simple modifications, changes, and equivalent structural changes made to the above embodiments according to the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. Electric unicycle energy endurance mileage test method, using an electric unicycle energy endurance mileage test system to test the energy endurance mileage of an electric unicycle. The electric unicycle energy endurance mileage test system includes two oppositely arranged support frames (4). The support frame (4) is a double-peak support frame. The double-peak support frame includes a first support peak plate (18) and a second support peak plate (19). A trough groove is formed between the first support peak plate (18) and the second support peak plate (19). A driving roller (8) is installed between the two first support peak plates (18), and a follower roller (9) is installed between the two second support peak plates (19). A load motor (7) for driving the driving roller (8) to rotate is arranged outside one of the first support peak plates (18). A gantry rotating rod for connecting the bottom of the gantry (6) is arranged between the two trough grooves. A double-output shaft motor (5) is arranged on the outer side wall of one of the double-peak support frames at the position of the trough groove. The first motor output shaft (22) of the double-output shaft motor (5) is connected to one vertical rod of the gantry (6), and the second motor output shaft of the double-output shaft motor (5) is connected to one end of the gantry rotating rod. The other end of the gantry rotating rod is connected to the other vertical rod of the gantry (6). Two hollow-structured guiding threaded tubes (12) are arranged at the bottom of the top cross bar of the gantry (6). One end of the loading rod (13) sequentially passes through the top cross bar of the gantry (6) and the guiding threaded tube (12) to be connected to the pedal (14). Two pull rods (15) are arranged on the top cross bar of the gantry (6) at positions outside the two guiding threaded tubes (12). One end of the tension and compression force measuring instrument (16) is connected to the bottom of the pull rod (15), and the other end of the tension and compression force measuring instrument (16) is connected to the pedal (14); An encoder (24) for measuring the rotation speed of the load motor (7) is installed on the output shaft of the load motor (7). The signal output end of the encoder (24) is connected to the signal input end of the computer (23). A timer (25) is connected to the computer (23). Both the double-output shaft motor (5) and the load motor (7) are controlled by the computer (23); It is characterized in that This method includes the following steps: Step 1. Install the electric unicycle in place: Place the electric unicycle (10) directly above the follower roller (9) and the driving roller (8), and adjust the loading rod (13) and the pull rod (15) to extend until the pedal (14) contacts the upper surface of the standing area of the electric unicycle (10); Step 2. Zero the tension and compression force measuring instrument: When the pedal (14) contacts the upper surface of the standing area of the electric unicycle (10) and the loading rod (13) does not apply pressure to the electric unicycle (10), adjust the tension and compression force measuring instrument (16) to the zero position; Step 3. Apply pressure to the electric unicycle: Adjust the extension of the loading rod (13), keep the pull rod (15) stationary. While the loading rod (13) extends, it drives the tension and compression force measuring instrument (16) to extend and be stressed. The tire (11) of the electric unicycle (10) is squeezed and buffered until the tension and compression force measuring instrument (16) shows that the loading pressure reaches the design value, and then stop rotating the loading rod (13) to extend; Step 4. Apply reverse resistance to the electric unicycle and start the electric unicycle and the load motor: According to the self-weight and loading pressure of the electric unicycle (10), give the design value of the reverse resistance of the electric unicycle (10). The computer (23) reversely starts the load motor (7) according to the running direction of the electric unicycle (10), and at the same time starts the electric unicycle (10) to make the electric unicycle (10) run smoothly according to the set driving resistance; After the electric unicycle (10) starts, the timer (25) starts timing, and the encoder (24) measures the real-time speed of the load motor (7); Step 5. Adjust the acceleration or deceleration state of the electric unicycle: The computer (23) controls the rotation of the double-output shaft motor (5). The rotation of the double-output shaft motor (5) drives the gantry (6) to rotate and tilt. The tilting of the gantry (6) further drives the loading rod (13) to tilt, and the tilting of the loading rod (13) further controls the tilting of the electric unicycle (10), simulating the tester to control the forward or backward tilt of the electric unicycle (10); When the gyroscope inside the electric unicycle (10) detects that the electric unicycle (10) tilts forward, the electric unicycle (10) accelerates; When the gyroscope inside the electric unicycle (10) detects that the electric unicycle (10) tilts backward, the electric unicycle (10) decelerates; During the running stage of the electric unicycle (10), the timer (25) continues to time, and the encoder (24) continues to measure the real-time speed of the load motor (7); Step 6. Calculate the energy endurance mileage after the electric unicycle stops: When the electric unicycle (10) stops running after the energy is exhausted, the timer (25) stops timing, the computer controls the load motor (7) to stop, and the computer determines the energy endurance mileage of the electric unicycle (10) according to the speed of the load motor (7) measured by the encoder (24), the outer diameter of the driving roller (8), and the timing time; Between the two first support peak plates (18), there is a load motor rotating shaft (20) for installing the driving roller (8), and the load motor (7) applies resistance to the driving roller (8) through the load motor rotating shaft (20). Between the two second support peak plates (19), there is a support shaft (21) for installing the follower roller (9); The outer thread is arranged on the loading rod (13), and the loading rod (13) is threadedly connected with the guiding threaded tube (12).

2. The method for testing the energy driving range of an electric balance vehicle according to claim 1, wherein: It also includes a hollow table body (1). A test port (2) and a long strip hole (3) are opened at the top of the hollow table body (1). One vertical rod of the gantry (6) extends out of the long strip hole (3), and the tops of the driving roller (8) and the follower roller (9) and the other vertical rod of the gantry (6) extend out of the test port (2).

3. The method for testing the energy endurance mileage of an electric balance vehicle according to claim 1, wherein: There is a gap between the follower roller (9) and the driving roller (8), and the width of the gap is smaller than the diameter of the tire (11) of the electric scooter (10).

4. The method for testing the energy endurance mileage of an electric balance vehicle according to claim 1, wherein: The bottom surface of the pedal (14) is fitted with the upper surface of the standing area of the electric scooter (10).

5. The method for testing the energy endurance mileage of an electric balance vehicle according to claim 1, wherein: A handle (17) is installed at the other end of the loading rod (13).

6. The method for testing the energy endurance mileage of an electric balance vehicle according to claim 1, characterized in that: A wear-resistant layer is provided outside the follower roller (9) and the driving roller (8).

7. The method for testing the energy endurance mileage of an electric balancing scooter according to claim 1, characterized in that: The signal output end of the computer (23) is connected to a display (26).

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