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公开(公告)号：US20240060854A1
公开(公告)日：2024-02-22
申请号：US18265784
申请日：2021-01-07
发明人： Jong Geol Kim , Maolin Jin , Ju Seong Shin , Ju Hyun Pyo , Kap Ho Seo
IPC分类号： G01M13/025
CPC分类号： G01M13/025
摘要： An apparatus for evaluating performance of a speed reducer, of the present disclosure, includes: a support frame; a base plate mounted on the support frame; a speed reducer to be evaluated, mounted on the base plate; an input unit, which is mounted on an input-side rotary shaft connected to the speed reducer and includes a driving motor, a torque sensor and an encoder; an output unit, which is mounted on an output-side rotary shaft connected to the speed reducer and includes an encoder and a torque sensor; an output terminal motor selectively connected to the output-side rotary shaft; and a rated torque brake selectively connected to the output-side rotary shaft.
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公开(公告)号：US11905998B2
公开(公告)日：2024-02-20
申请号：US17368212
申请日：2021-07-06
发明人： Qiang Liu , Chenguang Wei , Zhihua Zhu , . Alateng , Zhigao Yin , Zuo Xu
IPC分类号： F16D1/112 , F16D1/10 , F16D7/04 , G01M13/025
CPC分类号： F16D1/112 , G01M13/025 , F16D7/048 , F16D2001/103
摘要： A transmission shaft automatic connection and disengagement device and test equipment. An input shaft drives a transmission shaft to rotate through a second connection shaft, a ratchet assembly, a first connection shaft and an output shaft so as to apply an acceleration torque, gears of the input shaft and the first connection shaft can be completely engaged and completely separated through extension and retraction of piston rods of a first group of air cylinders and a second group of air cylinders so as to achieve an effect that when a driving shaft needs to perform driving, a power system gets involved, and after driving is completed, the power system is cut off, and through the ratchet assembly, the transmission shaft can be prevented from driving a motor to work in reverse.
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3.发明公开公开(公告)号：US20230324257A1
公开(公告)日：2023-10-12
申请号：US18042489
申请日：2021-08-31
发明人： Christian Hell
IPC分类号： G01M13/025 , G01M15/02 , F16D1/076
CPC分类号： G01M13/025 , G01M15/02 , F16D1/076
摘要： The invention relates to a coupling module for a drive train test stand for connecting an articulated shaft to a driveshaft. The coupling module includes a wheel rim and a wheel cap. The wheel rim can be rotationally fixed to the driveshaft. The wheel cap has a base surface and a lateral wall. The wheel cap can be rotationally fixed to the articulated shaft. A vehicle wheel is arranged on the wheel rim, the trad of the wheel being in frictional contact with the inner face of the lateral wall of the wheel cap. Also disclosed is a corresponding output module for a drive train test stand and to a drive train test stand for testing a vehicle drive train.
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公开(公告)号：US20230003616A1
公开(公告)日：2023-01-05
申请号：US17852539
申请日：2022-06-29
IPC分类号： G01M13/025 , B63H23/06 , G01M13/021
摘要： Techniques are directed to utilizing a break-in assembly to break-in a gear box. The break-in assembly includes a gear box support to support the gear box. The break-in assembly further includes a drive apparatus coupled with the gear box support, the drive apparatus being constructed and arranged to drive the gear box while the gear box is supported by the gear box support. The break-in assembly further includes a loading apparatus disposed in a fixed position relative to the gear box support, the loading apparatus being constructed and arranged to apply loading to the gear box while the drive apparatus drives the gear box. Accordingly, the gear box may be installed on the break-in assembly, broken in during a gear box break-in period while the gear box is installed on the break-in assembly, removed from the break-in assembly, and installed on a water vessel.
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公开(公告)号：US11313761B2
公开(公告)日：2022-04-26
申请号：US16096548
申请日：2017-04-25
发明人： Takao Akiyama
IPC分类号： G01M15/02 , G01M15/00 , G01M15/04 , G01M13/025 , G01M15/12 , G01L3/16 , G01M13/02 , G01L3/22 , G01L3/24 , G01M17/007
摘要： The purpose of the present invention is to provide a device for controlling a dynamometer of a test system, wherein the device is capable of controlling shaft torque to a prescribed target torque while minimizing low-frequency-range resonance caused by viscous drag of a test piece. This test system is provided with a dynamometer joined to an engine via a coupling shaft, an inverter for supplying electric power to the dynamometer, a shaft torque meter for detecting the shaft torque produced in the coupling shaft, and a dynamometer-controlling device 6 for generating a torque-current command signal T2 that is sent to the inverter and is generated on the basis of a shaft torque detection signal T12 from the shaft torque meter. The dynamometer-controlling device 6 is provided with an integrator 62 for integrating the difference between the shaft torque detection signal 12 and a shaft torque command signal T12ref, and a phase lead compensator 63 for accepting an output signal from the integrator 62 as an input and performing a phase lead compensation process that uses constants (a1, b1) that are dependent on the viscous drag of the test piece. An output signal from the phase lead compensator 63 is used to generate the torque-current command signal T2.
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公开(公告)号：US11125649B2
公开(公告)日：2021-09-21
申请号：US16465265
申请日：2017-11-08
发明人： Christian Hell , Stefanie Nodes
IPC分类号： G01M13/025
摘要： A modular drive train test stand (1) for electric motor vehicle drives (9). The drive train test stand (1) has at least a motor module (2). The drive train test stand (1) is characterized in that the electric motor (3) of the motor module (2) has a housing with a yoke (4) for supporting the electric motor (3).
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公开(公告)号：US11105701B2
公开(公告)日：2021-08-31
申请号：US16646335
申请日：2018-06-14
发明人： Takao Akiyama
IPC分类号： G01M1/10 , G01L1/10 , G01L3/02 , G01M13/025
摘要： An input-side control device includes: a feedback controller that generates a first control input signal for eliminating the difference between a model speed signal ωm and a speed detection signal ω by using the signal difference between a higher order torque command signal Tref and an axial torque detection signal Tsh to generate the model speed signal ωm which corresponds to the rotational speed of an inertial body having a set moment of inertia Jset moving under a torque corresponding to the signal difference; a feed-forward controller that generates a second control input signal by multiplying the signal difference by k·Jdy/Jset; and a low-pass filter that generates a torque command signal Tr from a signal obtained by combining the outputs of the controllers and attenuating components at a higher frequency than a cut-off frequency fc set in the vicinity of the resonant frequency.
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公开(公告)号：US20200271539A1
公开(公告)日：2020-08-27
申请号：US16646335
申请日：2018-06-14
发明人： Takao AKIYAMA
IPC分类号： G01M1/10 , G01M13/025 , G01M17/013 , G01L3/02 , G01L1/10
摘要： An input-side control device includes: a feedback controller that generates a first control input signal for eliminating the difference between a model speed signal ωm and a speed detection signal ω by using the signal difference between a higher order torque command signal Tref and an axial torque detection signal Tsh to generate the model speed signal ωm which corresponds to the rotational speed of an inertial body having a set moment of inertia Jset moving under a torque corresponding to the signal difference; a feed-forward controller that generates a second control input signal by multiplying the signal difference by k·Jdy/Jset; and a low-pass filter that generates a torque command signal Tr from a signal obtained by combining the outputs of the controllers and attenuating components at a higher frequency than a cut-off frequency fc set in the vicinity of the resonant frequency.
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公开(公告)号：US10386269B2
公开(公告)日：2019-08-20
申请号：US15456198
申请日：2017-03-10
发明人： Ena Ishii , Hideki Ito , Tadatoshi Ishii , Ken Ishii
IPC分类号： G01M17/007 , G01L5/22 , G01P3/00 , B60L3/12 , B60L7/18 , B60L7/26 , G01M13/025 , G01R31/34
摘要： According to one embodiment, an electric-vehicle testing apparatus includes processing circuitry. The circuitry generates a first signal corresponding to accelerator operation amount and a second signal corresponding to brake operation amount in accordance with test conditions. The circuitry controls torque of a test motor included in a test object. The circuitry computes running resistance to be assumed using a rotation speed of the test motor. The circuitry computes braking force using the second signal and an actual vehicle speed obtained from the rotation speed of the test motor. The circuitry controls torque of a load motor coupled to the test motor, based on a second command value corresponding to the running resistance and the braking force.
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公开(公告)号：US12055457B2
公开(公告)日：2024-08-06
申请号：US18522218
申请日：2023-11-28
发明人： Xin Wang , Songtao Zhao , Yuting Jiang , Long Yang , Lidong Jiang , Guanghao Dai , Yue Wu , Bozhao Ma , Shengjian Ye , Jian Zhang
IPC分类号： G01M13/025
CPC分类号： G01M13/025
摘要： A tooth vibration simulation test system to solve the problem of failure to simulate a tooth vibration of the dual-machine parallel drive gear transmission device and being used in tooth vibration simulation testing, includes a first and a second driving units, a transmission shaft assembly, a servo motor controller, a gear transmission device, a loading shaft, a load dynamometer and a load dynamometer control device. The power output of the first driving unit and the second driving unit are both connected to inputs of the gear transmission device, a power output of the gear transmission device is connected to one end of the loading shaft, another end of the loading shaft is connected to a power input shaft of the load dynamometer through the transmission shaft assembly, a signal input terminal of the load dynamometer is connected to a signal output terminal of the load dynamometer controller.
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