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KR-20260066872-A - AN MULTI TEST MODULE SYSTEM FOR PAV DRIVING DEVICE

KR20260066872AKR 20260066872 AKR20260066872 AKR 20260066872AKR-20260066872-A

Abstract

A PAV dynamometer multi-test module system is disclosed, characterized by comprising: a power transmission member connecting the output portions of drive motors to be tested, a torque sensor sensing the sum of torques according to the sum of the outputs of a plurality of drive motors, a load motor connected to the torque sensor, and a control unit controlling the operation of a plurality of drive motors and a load motor.

Inventors

  • 여운송
  • 이승수
  • 민경원

Assignees

  • (재)한국건설생활환경시험연구원

Dates

Publication Date
20260512
Application Date
20241105

Claims (4)

  1. A power transmission member connecting the outputs of the drive motors to be tested; A torque sensor that senses the sum of torques according to the sum of the outputs of the plurality of drive motors; A load motor connected to the torque sensor above; and A PAV dynamometer multi-test module system characterized by including a control unit that controls the driving of the plurality of drive motors and load motors.
  2. In paragraph 1, A PAV dynamometer multi-test module system characterized in that the power transmission member includes a chain or a belt.
  3. In paragraph 1 or 2, A PAV dynamometer multi-test module system characterized by further including a tensioner for adjusting the tension of the power transmission member.
  4. In paragraph 1 or 2, A PAV dynamometer multi-test module system characterized in that the output value of the load motor is greater than the sum of the output values of the plurality of drive motors.

Description

PAV Dynamometer Multi-Test Module System {AN MULTI TEST MODULE SYSTEM FOR PAV DRIVING DEVICE} The present invention relates to a PAV dynamometer multi-test module system, and more specifically, to a PAV dynamometer multi-test module system capable of testing multiple motors simultaneously. Due to technological advancements, the development of so-called PAVs (personalized drones) is actively underway as a next-generation means of transportation for urban areas. The airframe of such PAVs moves using the thrust of multiple propellers, and to achieve this, motors connected to at least four to a maximum of eight propellers fly using a multi-module gearbox. Since these PAVs must operate in urban areas, the performance of the motors in the dynamometers required for thrust, as well as noise and vibration, are major technical challenges. Therefore, the dynamometers required for flight are installed after undergoing test evaluations. In addition, multiple motors and dynamometers that transmit power from these motors to propellers undergo various performance tests for the safe flight of the PAV. To this end, the function/performance of the PAV's drive motors is evaluated using a generally known dynamometer. In other words, before shipping the multiple drive motors applied to the PAV airframe, the output of each drive motor is tested using a dynamometer, and then the airframe is shipped after testing whether the sum of the multiple drive motor output values meets the output value required for the PAV's flight. However, according to the conventional method described above, in the case of a PAV airframe with 4 to 8 drive motors, multiple drive motors must be tested individually, and then the sum of their respective outputs must be recalculated to verify whether the output is suitable for the flight of the PAV airframe. Consequently, there were problems such as the testing process being cumbersome and time-consuming. FIG. 1 is a schematic diagram showing a PAV dynamometer multi-test module system according to an embodiment of the present invention. FIG. 2 is a drawing for explaining the main parts of the PAV dynamometer multi-test module system illustrated in FIG. 1. FIG. 3 is a perspective view showing a specific part of FIG. 1, FIG. 4 is a block diagram illustrating a PAV dynamometer multi-test module system according to an embodiment of the present invention. A PAV dynamometer multi-test module system according to an embodiment of the present invention will be described in detail below with reference to the attached drawings. Referring to FIGS. 1 to 4, a PAV dynamometer multi-test module system (100) according to an embodiment of the present invention comprises a power transmission member (20) that respectively connects output sections (13-1)(13-2)(13-3)(13-4)... of drive motors (M1~Mn) to be tested, a tensioner (30) that adjusts the tension of the power transmission member (20), a dynamometer (120) that is power-transmitted to the power transmission member (20), a torque sensor (130) that senses the sum of torques according to the sum of the outputs of the plurality of drive motors (M1~Mn), a load motor (150) that is connected to the torque sensor (130) and connected to the dynamometer (120) via a common shaft, and a motor (M1~Mn), a dynamometer (120), a torque sensor (130), and a load motor (150) that controls the dynamometer (120), the torque sensor (130), and the load motor (150). It is equipped with a control unit (110). The number of drive motors (M1 to Mn) to be tested corresponds to the number of motors to be mounted on the PAV, and can be 4 to 8. Gears are installed on the output shafts of these multiple drive motors (M1 to Mn) to form an output section (13). A power transmission member (20) is installed to connect the output section (13), i.e., the gears, of each drive motor (M1 to Mn). The above power transmission member (20) may include a chain or a belt and may be connected to the output section (13) of a plurality of drive motors (M1~Mn) to run in an endless track as a closed-loop structure. Tensioners (20) are installed to adjust the tension of the power transmission member (20), and preferably, a plurality of them are installed at a plurality of positions to adjust the tension of the driving power transmission member (20) so that the rotational force of the plurality of driving motors (M1~Mn) is normally transmitted to the power transmission member (20). A load motor (150) is installed to provide a load to the plurality of drive motors (M1 to Mn), and preferably, the load motor (150) is a load motor having an output greater than the sum of the outputs of the plurality of drive motors (M1 to Mn) to be tested. The load motor (150) can be supplied to a plurality of drive motors (M1~Mn) through a dynamometer (120) connected to a common shaft by a power transmission member (20). Referring to FIG. 2, the power transmission member (20) is power-connected by a gearbox module (170) that is power-connected to the