Measuring and testing – Simulating operating condition – Marine
Patent
1990-11-28
1992-03-24
Myracle, Jerry W.
Measuring and testing
Simulating operating condition
Marine
G01M 1900
Patent
active
050976990
ABSTRACT:
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.
REFERENCES:
patent: 4356724 (1982-11-01), Ayoub et al.
patent: 4823596 (1989-04-01), Meyers et al.
Goto Takashi
Maruki Toshimitsu
Mizushina Fumio
Naganuma Yukio
Sano Kaoru
Kabushiki Kaisha Meidensha
Kananen Ronald P.
Myracle Jerry W.
LandOfFree
Method and system for testing automotive power transmission and does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for testing automotive power transmission and , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for testing automotive power transmission and will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2001571