Apparatus for controlling output shaft torque of an engine in an

Details Apparatus for controlling output shaft torque of an engine in an Apparatus for controlling output shaft torque of an engine in an

1990-08-21

1992-01-07

Raevis, Robert

Measuring and testing

Vehicle chassis

Steering

G01M 1500

Patent

active

050780085

ABSTRACT:
An apparatus for controlling output shaft torque of an engine in an engine tester by correction inertia of the dynamometer, comprising an operation pattern generator, a dynamometer processing unit, a dynamometer controller, and a dynamometer. The torque signal fed back to the dynamometer controller is not from the shaft torque meter but is of the dynamometer torque, and is not affected by the torsional vibration, and is controlled with good stability. Further, no time lag caused by the inertia of the dynaomometer develops in controlling the torque of the output shaft. Therefore, the torque of the output shaft can be controlled with high response and accuracy.

REFERENCES:
patent: 4758967 (1988-07-01), Shmuter et al.
patent: 4825690 (1989-05-01), Mears
"AC Electric Dynamometer System for End-of-Line Engine Hot Test", by J. Bradley, et al., SAE Paper 840563, pp. 77-88.

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