公开(公告)号：US5249458A

公开(公告)日：1993-10-05

申请号：US854699

申请日：1992-03-20

申请人： Kaoru Sano ,  Fumio Mizushina

发明人： Kaoru Sano ,  Fumio Mizushina

IPC分类号： G01M13/02 ,  G01M15/00

CPC分类号： G01M13/025

摘要： A simulation system for an automotive internal combustion engine is suitable for simulating an engine operation for performing a bench test for an engine associated vehicular component, such as an automatic power transmission, an automatic transaxle, a differential gear box, and so forth. The system comprises a power plant which incorporates a relatively high inertia, and means for compensating the high inertia for achieving a low inertia equivalent to the automotive internal combustion engine; an engine characteristics generator receiving predetermined engine operation parameter simulated data for deriving a control signal commanding an output torque of said power plant according to a predetermined engine output torque variation characteristic which is set in terms of said engine operation parameter simulated data, and means, responsive to a simulated engine environmental condition indicative data, for deriving a correction value based on said environmental condition for correcting said control signal.

摘要翻译： 用于汽车内燃机的模拟系统适用于模拟用于对发动机相关车辆部件（例如自动变速器，自动变速驱动桥，差速齿轮箱等）进行台架试验的发动机操作。 该系统包括具有相对高的惯性的发电厂和用于补偿用于实现与汽车内燃机相当的低惯量的高惯量的装置; 发动机特性发生器，接收预定的发动机运转参数模拟数据，用于根据根据所述发动机运转参数模拟数据设定的预定发动机输出转矩变化特性导出指示所述发电厂的输出转矩的控制信号;以及响应 模拟引擎环境条件指示数据，用于基于用于校正所述控制信号的所述环境条件导出校正值。

公开(公告)号：US5189908A

公开(公告)日：1993-03-02

申请号：US618950

申请日：1990-11-28

申请人： Kaoru Sano ,  Fumio Mizushina ,  Toshimitsu Maruki ,  Yukio Naganuma ,  Takashi Goto

发明人： Kaoru Sano ,  Fumio Mizushina ,  Toshimitsu Maruki ,  Yukio Naganuma ,  Takashi Goto

IPC分类号： G01M13/02

CPC分类号： G01M13/025 ,  F16H2061/0068

摘要： A simulation system for an automotive internal combustion engine is designed for simulating a transition state for varying output torque according to variation of the engine driving condition. The system comprises a power plant which incorporates relatively high inertia, and means for compensating high inertia for achieving low inertia equivalent to the automotive internal combustion engine, an engine characteristics generator receiving predetermined engine operation parameter simulated data for deriving control signal commanding output torque of said power plant according to a predetermined engine output torque variation characteristics which is set in terms of said engine operation parameter simulated data, and means, cooperative with said engine characteristics generator and responsive to a torque variation command demanding said output torque from a first value to a second value, for setting a predetermined torque variation characteristics for varying said control signal value according to an elapsed time so that output torque varies from said first value to said second value within a predetermined torque variation transition period.

公开(公告)号：US5209110A

公开(公告)日：1993-05-11

申请号：US624962

申请日：1990-12-10

申请人： Kaoru Sano ,  Fumio Mizushina ,  Takashi Goto ,  Toshimitsu Maruki ,  Yukio Naganuma

发明人： Kaoru Sano ,  Fumio Mizushina ,  Takashi Goto ,  Toshimitsu Maruki ,  Yukio Naganuma

IPC分类号： G01R31/34 ,  G01M13/02 ,  H02H7/085

CPC分类号： H02H7/085 ,  G01M13/025

摘要： An over-loading detection system periodically samples a motor operating parameter, e.g. a revolution speed and an output torque at a predetermined relatively short sampling period. Based on the sampled motor operating parameter, a ratio of the output torque and a predetermined over-load rating torque is derived and stored. Over-load detection is performed with respect to a plurality of sampled ratios of the output torque and the over-load rating torque by deriving a running average and comparing the derived running average value with a predetermined threshold.

公开(公告)号：US5144834A

公开(公告)日：1992-09-08

申请号：US618952

申请日：1990-11-28

申请人： Kaoru Sano ,  Fumio Mizushina ,  Takashi Goto ,  Toshimitsu Maruki ,  Yukio Naganuma

发明人： Kaoru Sano ,  Fumio Mizushina ,  Takashi Goto ,  Toshimitsu Maruki ,  Yukio Naganuma

IPC分类号： G01M13/02

CPC分类号： G01M13/025

摘要： A simulation system for an automotive internal combustion engine is suitable for simulating an engine operation for performing a bench test for an engine associated vehicular component, such as an automatic power transmission, an automatic transaxle, a differential gear box, and so forth. The system comprises a power plant which incorporates a relatively high inertia, and means for compensating the high inertia for achieving a low inertia equivalent to the automotive internal combustion engine; an engine characteristics generator receiving predetermined engine operation parameter simulated data for deriving a control signal commanding an output torque of said power plant according to a predetermined engine output torque variation characteristic which is set in terms of said engine operation parameter simulated data, and means, responsive to a simulated engine environmental condition indicative data, for deriving a correction value based on said environmental condition for correcting said control signal.

公开(公告)号：US5097699A

公开(公告)日：1992-03-24

申请号：US618951

申请日：1990-11-28

申请人： Kaoru Sano ,  Fumio Mizushina ,  Takashi Goto ,  Toshimitsu Maruki ,  Yukio Naganuma

发明人： Kaoru Sano ,  Fumio Mizushina ,  Takashi Goto ,  Toshimitsu Maruki ,  Yukio Naganuma

IPC分类号： F16H59/16 ,  G01M13/02

CPC分类号： G01M13/025 ,  F16H2059/743 ,  F16H59/16

摘要： A system and method for testing a specimen such as a vehicular power transmission (e.g., an automatic transmission) and analyzing an engine output characteristic of an engine connected to the power transmission in which at least a first revolutional speed on an input or output shaft of the power transmission and a first output torque of the power transmission are measured when the engine operating parameters indicate a predetermined value with the power transmission connected to the engine. A second revolutional speed on the input or output shaft of the power transmission and a second output torque of the power transmission are measured when a low inertia driving unit having the same characteristics as the engine is connected any driven with a power transmission under the same operating parameters described above. A first drive torque of the low inertia driving unit is then measured, a third revolutional speed on the input or output shaft of the power transmission and a third output torque of the power transmission are measured when a predetermined time has passed and when the same low inertia driving unit is connected and driven in the same way, and a second drive torque of the lower inertia driving unit is measured when difference values between the second and third revolutional speeds and second and third output torque fall within a predetermined range. The second drive torque is estimated as the output characteristic of the engine connected to the power transmission.

公开(公告)号：US5086648A

公开(公告)日：1992-02-11

申请号：US619407

申请日：1990-11-29

申请人： Kaoru Sano ,  Fumio Mizushina ,  Takashi Goto ,  Toshimitsu Maruki

发明人： Kaoru Sano ,  Fumio Mizushina ,  Takashi Goto ,  Toshimitsu Maruki

IPC分类号： G01M13/02

CPC分类号： G01M13/025

摘要： A simulation system for an automotive internal combustion engine includes a low inertia power generator which includes a direct current motor and a speed increasing device. An engine characteristic generator derives a first signal indicative of a first output torque to be derived as an output of the low inertia power generator. The first output torque is equivalent to that of the engine. A first compensation torque is derived for compensation in view of a set engine inertia. A second compensation torque is further derived for compensation in view of a set inertia of the low inertia power generator. A third compensation torque is further derived based on the first and second compensation torques for compensating a differential in inertia between the engine and the low inertia power generator. A control signal is derived based on the first signal and the third compensation torque. The control signal is fed to the low inertia power generator for controlling operation of the direct current motor so as to provide a second output torque as the output of the low inertia power generator. The second output torque is equivalent to the first output torque. Accordingly, an output characteristic equivalent to that of the engine is provided as the output of the low inertia power generator.