公开(公告)号：US10416628B2

公开(公告)日：2019-09-17

申请号：US15387430

申请日：2016-12-21

申请人： Baidu Online Network Technology (Beijing) Co., Ltd.

发明人： Tianlei Zhang ,  Wenli Yang ,  Yuchang Pan ,  Haowen Sun

IPC分类号： G05B17/02 ,  G01M13/026 ,  G01M17/007 ,  G07C5/00 ,  B60R16/023 ,  G08G1/01

摘要： Embodiments of real vehicle in-the-loop test systems and methods are disclosed. The system can include a sensor configured to acquire state information and location information of a real vehicle and environment information of an emulation test environment where the vehicle is located; an interaction module configured to acquire a test task in response to the instruction entered by a user, an emulation test environment of the test task comprises a test situation, a map, and an intelligent agent; a vehicle sensing module configured to acquire the state information, the location information, and the environment information from the sensor; and a test task control module configured to receive the test task from the interaction module, the state information and the location information from the vehicle sensing module and load them to the emulation test environment, control the real vehicle to execute the test task, and generate and send the test result.

公开(公告)号：US11619565B2

公开(公告)日：2023-04-04

申请号：US16603373

申请日：2018-04-06

申请人： AVL LIST GMBH

发明人： Felix Pfister ,  Andreas Fleck

IPC分类号： G01M13/026 ,  G01M13/022

摘要： The invention relates to a method for controlling, more particularly in a closed-loop manner, a test bench for a powertrain with a real transmission, the method including calculating a desired value of a control parameter, more particularly a desired rotational speed, at the transmission output of the real transmission by means of a model that represents the transmission and at least one further component, more particularly a shaft, of the output side of the powertrain as virtual components, on the basis of at least one measurement parameter, more particularly a rotational speed and/or a torque, measured on the powertrain; and controlling the test bench, more particularly a load machine, on the basis of the desired value.

公开(公告)号：US11513031B2

公开(公告)日：2022-11-29

申请号：US16665030

申请日：2019-10-28

申请人： Aktiebolaget SKF

发明人： Douglas Johnson ,  Michael Ingram ,  Greg Ziegler ,  Soenke Petersen

IPC分类号： G01R31/34 ,  G01M13/045 ,  H02P23/14 ,  G01M13/026 ,  G01M15/02 ,  G01M13/028

摘要： Conformance testing of a rebuilt motor includes disposing a motor under test in a motor test stand, coupling a plurality of sensors to the motor under test including a first vibrational sensor to the motor under test; a first temperature sensor to the motor under test; a first rotational speed sensor to the motor under test. A set of test parameters are received comprising parameters for a conformance test, the test parameters including a vibrational sensor parameter, a temperature sensor parameter, and a rotational speed parameter. A motor under test is placed in an on-state and a processing device receives sensor data simultaneously from the sensors, determines that the rotational speed satisfies the rotational speed parameter, and stores time sampled sensor data received from the plurality of sensors relative to a time zero corresponding to a time when the rotational speed satisfies the rotational speed.

公开(公告)号：US20230358639A1

公开(公告)日：2023-11-09

申请号：US18049744

申请日：2022-10-26

申请人： AKTIEBOLAGET SKF

发明人： Douglas Johnson ,  Michael Ingram ,  Greg Ziegler ,  Soenke Petersen

IPC分类号： G01M13/045 ,  H02P23/14 ,  G01M13/026 ,  G01M15/02 ,  G01M13/028

CPC分类号： G01M13/045 ,  H02P23/14 ,  G01M13/026 ,  G01M15/02 ,  G01M13/028

摘要： Conformance testing of a rebuilt motor includes disposing a motor under test in a motor test stand, coupling a plurality of sensors to the motor under test including a first vibrational sensor to the motor under test; a first temperature sensor to the motor under test; a first rotational speed sensor to the motor under test. A set of test parameters are received comprising parameters for a conformance test, the test parameters including a vibrational sensor parameter, a temperature sensor parameter, and a rotational speed parameter. A motor under test is placed in an on-state and a processing device receives sensor data simultaneously from the sensors, determines that the rotational speed satisfies the rotational speed parameter, and stores time sampled sensor data received from the plurality of sensors relative to a time zero corresponding to a time when the rotational speed satisfies the rotational speed.

公开(公告)号：US20220291085A1

公开(公告)日：2022-09-15

申请号：US17633040

申请日：2020-08-03

申请人： AVL LIST GMBH

发明人： Maximilian Bier ,  Andreas Quick

IPC分类号： G01M13/026 ,  G01M15/04 ,  G01L3/22

摘要： Various aspects of the present disclosure are directed to a test bench and methods for carrying out a test run on a test bench. In one example embodiment, a test run method includes: connecting a test object to a load machine, specifying a target torque for a torque controller by a test bench automation unit according to the test run, adjusting an actual torque of the load machine by the torque controller, specifying a test object control variable for the test object by a test object controller, determining an actual rotational speed of the load machine, determining at least one deviation of at least one attribute of the actual rotational speed from at least one threshold value, and based on the at least one deviation, and determining at least one additive torque correction value and superimposing the at least one additive torque correction value on the target torque.

公开(公告)号：US10775249B2

公开(公告)日：2020-09-15

申请号：US15853583

申请日：2017-12-22

申请人： Goodrich Corporation

发明人： Raghu Iyer ,  Timothy H. Barber

IPC分类号： G01L3/06 ,  F16H59/16 ,  G01M13/026 ,  G01M13/027 ,  G01M13/025 ,  F16H1/32

摘要： A flexible drive shaft test arrangement includes a drive end piece arranged along a rotation axis, a driven end piece axially offset from the drive end piece along the rotation axis, and a shell. The shell connects the drive end piece to the driven end piece. The drive end piece end is offset in rotation about the driven end piece to internally load a flexible drive shaft disposed within the shell with torsion. Test stands and methods for testing flexible drive shafts are also disclosed.

公开(公告)号：US20240125672A1

公开(公告)日：2024-04-18

申请号：US18277413

申请日：2022-02-04

申请人： FLENDER GMBH

发明人： Ralf HAMBRECHT

IPC分类号： G01M13/026 ,  G01M13/022

CPC分类号： G01M13/026 ,  G01M13/022

摘要： A test bench for testing a planetary transmission is provided. In order to utilize the test bench for a planetary transmission without a planetary carrier bearing, the test bench has a central bearing unit. The central bearing unit is configured to rotatably mount a planetary carrier of a first stage of the planetary transmission, and the central bearing unit is configured, furthermore, to center an internal gear of the planetary transmission with respect to the planetary carrier.

公开(公告)号：US11726004B2

公开(公告)日：2023-08-15

申请号：US17633040

申请日：2020-08-03

申请人： AVL LIST GMBH

发明人： Maximilian Bier ,  Andreas Quick

IPC分类号： G01M15/04 ,  G01M13/026 ,  G01L3/22 ,  G01M15/02

CPC分类号： G01M13/026 ,  G01L3/22 ,  G01M15/042 ,  G01M15/02

摘要： Various aspects of the present disclosure are directed to a test bench and methods for carrying out a test run on a test bench. In one example embodiment, a test run method includes: connecting a test object to a load machine, specifying a target torque for a torque controller by a test bench automation unit according to the test run, adjusting an actual torque of the load machine by the torque controller, specifying a test object control variable for the test object by a test object controller, determining an actual rotational speed of the load machine, determining at least one deviation of at least one attribute of the actual rotational speed from at least one threshold value, and based on the at least one deviation, and determining at least one additive torque correction value and superimposing the at least one additive torque correction value on the target torque.

公开(公告)号：US20210231527A1

公开(公告)日：2021-07-29

申请号：US16603373

申请日：2018-04-06

申请人： AVL LIST GMBH

发明人： Felix PFISTER ,  Andreas FLECK

IPC分类号： G01M13/026 ,  G01M13/022

摘要： The invention relates to a method for controlling, more particularly in a closed-loop manner, a test bench for a powertrain with a real transmission, the method including calculating a desired value of a control parameter, more particularly a desired rotational speed, at the transmission output of the real transmission by means of a model that represents the transmission and at least one further component, more particularly a shaft, of the output side of the powertrain as virtual components, on the basis of at least one measurement parameter, more particularly a rotational speed and/or a torque, measured on the powertrain; and controlling the test bench, more particularly a load machine, on the basis of the desired value.

公开(公告)号：US20190383703A1

公开(公告)日：2019-12-19

申请号：US16464107

申请日：2017-11-24

申请人： AVL LIST GMBH

发明人： Helmut KOKAL

IPC分类号： G01M13/026 ,  G01L3/22 ,  G06F5/06 ,  H03H21/00

摘要： The invention relates to a device and to a method for controlling a test stand arrangement having a specimen and having a loading machine, which is connected to the specimen by a connecting shaft. An estimated value (TE,est) for for the internal torque (TE) of the specimen is determined and, from the estimated value (TE,est), while taking into account a natural frequency (f0) and a delay, a damping signal (TDamp) is determined and fed back into the control loop.