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公开(公告)号：US20240094067A1
公开(公告)日：2024-03-21
申请号：US17947863
申请日：2022-09-19
IPC分类号： G01K13/024 , F02C9/28 , G01K1/02 , G01K1/14 , G01L3/24
CPC分类号： G01K13/024 , F02C9/28 , G01K1/026 , G01K1/14 , G01L3/24 , F05D2220/323 , F05D2260/80 , G01K2205/04
摘要： A system for determining an indicated turbine temperature (ITT) for a gas turbine engine includes an engine control system. The engine control system includes a processor in communication with a non-transitory memory storing instructions, which instructions when executed by the processor, cause the processor to: determine a first estimated outlet temperature value for a high-pressure turbine of the gas turbine engine, determine an estimated work ({dot over (W)}HPT) of the high-pressure turbine, determine an estimated inlet temperature value for the high-pressure turbine using the estimated work ({dot over (W)}HPT), and determine the ITT by calculating a second estimated outlet temperature value using the estimated inlet temperature value, the second estimated outlet temperature value different than the first estimated outlet temperature value.
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公开(公告)号：US11536622B2
公开(公告)日：2022-12-27
申请号：US16909106
申请日：2020-06-23
发明人： Meng-Hua Chiang , Wei-Chih Wei
IPC分类号： G01L5/22 , G01L5/1627 , G01L3/24 , B62J45/411 , B62J45/20 , B62J50/21 , A63B24/00 , B62J45/422
摘要： A bicycle power meter includes a strain gauge, a signal processing unit, a processor, and a signal transmitter. The strain gauge is disposed on at least one of an outer peripheral wall and an inner peripheral wall of a stem of a bicycle. The signal processing unit connected to the strain gauge by signal correspondingly outputs an electrical signal based on a deformation of the stem detected by the strain gauge. The processor connected to the signal processing unit by signal receives the electrical signal sent by the signal processing unit and calculates a measuring value based on the electrical signal and sends the measuring value in an output signal. The signal transmitter connected to the processor by signal receives the output signal sent by the processor and converts the output signal to a wired or wireless signal and sends the wired or wireless signal to a terminal device.
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公开(公告)号：US20220011181A1
公开(公告)日：2022-01-13
申请号：US17296426
申请日：2020-09-14
发明人： Ruirui ZHANG , Liping CHEN , Longlong LI , Gang XU , Yao WEN , Tongchuan YI
摘要： A system and a method for evaluating atomization efficiency of a wind-driven atomizer. The system for evaluating atomization efficiency of a wind-driven atomizer comprises a detection platform, a wind tunnel mechanism and a traction measurement mechanism are arranged above the detection platform, the traction measurement mechanism is disposed beside the wind outlet end of the wind tunnel mechanism, an atomizer mechanism and an atomization measurement mechanism are sequentially disposed on the detection platform along the direction of a wind field provided by the wind tunnel mechanism, and the atomizer mechanism is connected with the traction measurement mechanism. The system and the method may effectively evaluate the atomization efficiency and provide quantitative evaluation indicators for the detection of working performance of the wind-driven atomizer, and has the advantages of convenient operation, accurate detection, precise measurement results, and high reliability of evaluation indicators.
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公开(公告)号：US20210310886A1
公开(公告)日：2021-10-07
申请号：US17186024
申请日：2021-02-26
申请人： DIONYSIOS MYLONAS
发明人： DIONYSIOS MYLONAS
摘要： The present invention provides a more accurate device and method for measuring automobile horsepower, specifically the internal combustion engine, ICE horsepower at the crankshaft, or the electric motor(s') horsepower, or the combined ICE and electric motor(s') horsepower. It applies to automobiles that do not incorporate, or can disengage, regenerative braking, RGB. The proposed device and method measures horsepower in real road test conditions, through the utilization of an accelerometer that performs measurements of the automobile velocity, acceleration and deceleration, whereas the method provided may be also applied to chassis dynamometers, resulting into a more accurate horsepower measurement by such dynamometers.
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公开(公告)号：US20210156361A1
公开(公告)日：2021-05-27
申请号：US15733585
申请日：2019-03-01
发明人： Hongkun Zhang , Norbert Eich , Martin Pilas , Jan Wenske
摘要： The present application relates to a method for determining an efficiency and/or for calibrating a torque of a drivetrain (1), in particular a drivetrain (1) of a wind turbine. The method for determining an efficiency and/or for calibrating a torque of a drivetrain (1), in particular of a drivetrain of a wind turbine, is particularly suited for carrying out on a test rig and comprises two tests. The drivetrain has a motor-side end at a main shaft connectable to a motor and a generator-side end, between which ends a generator is arranged. In a first test, the motor-side end of the drivetrain (1) is driven. A variable dependent on the main shaft torque is thereby determined at the motor-side end of the drivetrain (1) and an electrical power Pelec is determined at the generator-side end of the drivetrain (1). In a second test, the generator-side end of the drivetrain (1) is driven and the variable dependent on the main shaft torque is likewise determined at the motor-side end and the electrical power Pelec is determined at the generator-side end. An efficiency and/or calibration parameters is/are determined from the electrical power values and the variables dependent on the main shaft torque determined in the first test and in the second test.
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公开(公告)号：US20200166421A1
公开(公告)日：2020-05-28
申请号：US16777671
申请日：2020-01-30
摘要： Power transmitted from a cyclist to a bicycle through crank arms is indirectly measured by performing calculations on direct physical measurements. The direct physical measurements are taken from sensors that can be non-rotationally coupled to the frame of the bicycle. The sensors can be integrated into the frame or installed as a module within a standard, unmodified bicycle bottom bracket. Measured power can be viewed by the cyclist using a wirelessly connected user interface device.
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公开(公告)号：US10571349B2
公开(公告)日：2020-02-25
申请号：US15925520
申请日：2018-03-19
发明人： Andrew P. Lull , Patrick A. Warner
摘要： A power measurement assembly mounted within an axle. In a specific example, the axle is a spindle that is interconnects the cranks of a bicycle, exercise, bicycle, or other fitness equipment. The power measurement assembly may include strain gauges connected with an appropriate circuit (e.g., Wheatstone bridge) that provides an output of the force on the axle by a rider pedaling the crank. In the case of an axle, the strain gauges measure the torsion due to the applied torque on the crank. The value is converted to a power value by a processor and that value is then wirelessly transmitted for display. The processor and/or the transmitter may be mounted within the axle. A separate power measurement assembly may be mounted on one of the cranks, which may include its own processor and transmitter or may take advantage of the processor and transmitter within the axle.
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公开(公告)号：US20190382076A1
公开(公告)日：2019-12-19
申请号：US16557679
申请日：2019-08-30
申请人： PIONEER CORPORATION
发明人： Nobuo MIOKA , Yasuteru Kodama
摘要： An information output device that can output the position of a load applied to the pedal is provided. A strain gauge is provided on the inner face of a crank of a bicycle and detects strain occurring in the crank. A cycle computer display unit displays an image showing the center position of the load applied to the pedal connected to the crank based on the tangential force and the torsional torque calculated based on the output values of the first strain gauge to the sixth strain gauge.
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公开(公告)号：US10190944B2
公开(公告)日：2019-01-29
申请号：US15774835
申请日：2016-11-02
发明人： Takao Akiyama
摘要： Provided is a dynamometer-system dynamo control device that can appropriately suppress the occurrence of resonance phenomena and can realize a no-load state, even in a case where an engine the inertia of which is unknown is connected. The dynamometer system comprises a dynamometer and a shaft torque meter. A dynamo control device 6 in the dynamometer system generates a torque current command signal on the basis of a torque detection signal and a torque command signal. The dynamo control device 6 comprises: a gain calculation unit 62 that multiplies the difference between the torque command signal and the torque detection signal by gain wATR and then by Ki; an integration operation unit 63 that integrates the output signal of the gain calculation unit 62; a high-pass filter 64 characterized by a response frequency wHPF; and a torque current command signal generation unit 65 that generates a torque current command signal by superimposing, onto the output signal of the integration operation unit 63, an output signal obtained by inputting the torque detection signal to the high-pass filter 64.
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公开(公告)号：US20180328815A1
公开(公告)日：2018-11-15
申请号：US15774835
申请日：2016-11-02
发明人： Takao AKIYAMA
CPC分类号： G01M15/02 , G01L3/14 , G01L3/242 , G01M15/044 , G01M15/05
摘要： Provided is a dynamometer-system dynamo control device that can appropriately suppress the occurrence of resonance phenomena and can realize a no-load state, even in a case where an engine the inertia of which is unknown is connected. The dynamometer system comprises a dynamometer and a shaft torque meter. A dynamo control device 6 in the dynamometer system generates a torque current command signal on the basis of a torque detection signal and a torque command signal. The dynamo control device 6 comprises: a gain calculation unit 62 that multiplies the difference between the torque command signal and the torque detection signal by gain wATR and then by Ki; an integration operation unit 63 that integrates the output signal of the gain calculation unit 62; a high-pass filter 64 characterized by a response frequency wHPF; and a torque current command signal generation unit 65 that generates a torque current command signal by superimposing, onto the output signal of the integration operation unit 63, an output signal obtained by inputting the torque detection signal to the high-pass filter 64.
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