Dynanometer engine performance analyzer system

Details Dynanometer engine performance analyzer system Dynanometer engine performance analyzer system

1989-12-26

1990-11-20

LaRoche, Eugene R.

Boots, shoes, and leggings

73117, 73116, 7386217, 731173, 7386208, G01M 1500, G01L 324

Patent

active

RE0334502

ABSTRACT:
A dynamic engine performance analyzer system measures engine torque and power continuously from an absorption brake and produces a statistically corrected and deskewed value of torque and power for each of a number of RPM bands. Torque and power values are integrated during each N shaft revolutions as the engine is slowly accelerated through a range of interest. The data are accumulated such that for each 100 RPM wide band in the range, there is a statistical mean value produced of torque and of power. Each 100 RPM band element represents the mean or average of several separate data measurements. A deskewing operation compensates for the fact that the samples may not all be taken evenly throughout each 100 RPM average band during acceleration. The inertial effects of acceleration and deceleration are compensated by adjusting the torque and power values upwards during acceleration and downwards during deceleration. The engine analysis is quite rapid, and provides extremely reliable and accurate performance data which closely approaches the theoretical best possible according to statistical theory.

REFERENCES:
patent: 3729989 (1973-05-01), Little
patent: 3890832 (1974-06-01), Nick et al.
patent: 3942365 (1976-03-01), Hanson et al.
patent: 4327578 (1982-05-01), D'Angelo
patent: 4638673 (1987-01-01), Blaschke
patent: 4691288 (1987-09-01), Kay et al.

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