Electric vehicle driving motor locked-rotor torque testing device and testing method
A drive motor and stall torque technology, applied in the field of electric vehicle drive motor stall torque testing devices, can solve the problems of complicated testing work and high equipment cost, and achieve the effects of simple structure, high-precision measurement and convenient operation
Active Publication Date: 2018-06-12
LIAONING UNIVERSITY OF TECHNOLOGY
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Problems solved by technology
Designing a special stall torque device requires special motor brackets, couplings, torque meters, torque meter calibration devices, weights, indexers, motor control and torque angle acquisition systems, and the equipment costs are high. complex
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[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.
[0039] The invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete. In the drawings, the size and relative sizes of structures and regions may be exaggerated for clarity.
[0040] Such as Figure 1-4 As shown, the present invention provides an electric vehicle drive motor stall torque test device, comprising: a first indexing shaft 110, one end of which is coaxially connected with the first flange 120, and the other end is connected with the output spline of the drive motor 130. Axial connection; the first flange 120 has first screw holes A1-A30 evenly opened in the circumferential direction and the angle between a...
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The invention discloses an electric vehicle driving motor locked-rotor torque testing device, which comprises a first indexing shaft, a first flange, a second indexing shaft and a second flange. One end of the first indexing shaft is coaxially connected with the first flange while the other end is coaxially connected with a driving motor; the first flange is peripherally and uniformly provided with first screw holes, and an angle between every two adjacent first screw holes is 12 degrees; one end of the second indexing shaft is coaxially connected with the second flange while the other end iscoaxially connected with a torque gauge; the arc periphery of a sector area of the second flange is uniformly provided with second screw holes, an angle between every two adjacent second screw holes is 14 degrees, and each second screw hole is provided with a third screw hole in center symmetry relative to the axis. When the first flange and the second flange rotate coaxially and fittingly, the first screw holes can be coincided with the second screw holes and the third screw holes respectively, 2-degree-interval-angle motor locked-rotor torque testing can be realized, and structural simplicity and convenience in operation are realized. The invention further provides an electric vehicle driving motor locked-rotor torque testing method to realize high-precision measurement of motor locked-rotor torques.
Description
technical field [0001] The present invention relates to the technical field of electric vehicle drive motor testing, and more specifically, the present invention relates to an electric vehicle drive motor stall torque testing device and testing method. Background technique [0002] Due to the characteristics of the electric vehicle drive motor itself, the motor rotor is at a fixed angle when it is static, and the driving torque generated when the power is turned on is very different. This torque is called the stall torque. Because electric vehicles usually do not have a clutch, the stall torque directly affects the static starting performance and static climbing ability of electric vehicles. The national standard GBT18488 stipulates that at least 5 rotors are randomly tested for stall torque in different phases, and the more the more, the more accurate. Designing a set of special stall torque devices requires special motor brackets, couplings, torque meters, torque meter ca...
Claims
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IPC IPC(8): G01R31/34
CPCG01R31/34Y02T10/64
Inventor 朱志强孙晓帮张大明
Owner LIAONING UNIVERSITY OF TECHNOLOGY