Control device for chassis dynamometer system

Details Control device for chassis dynamometer system Control device for chassis dynamometer system

1986-09-16

1988-05-24

Myracle, Jerry W.

Measuring and testing

Vehicle chassis

Steering

G01M 1500

Patent

active

047457996

ABSTRACT:
A control device for a chassis dynamometer system which outputs a control signal for controlling a dynamometer on the basis of a control equation having parameters including a sensed torque and a sensed rotational speed of the dynamometer and an inertia of a vehicle to be tested and a mechanical inertia of the dynamometer system and including control coefficients, the control signal controlling said dynamometer so as to control the mechanical force to be absorbed therein when the dynamometer is connected to a rotating roller on which a driving wheel of the vehicle to be tested is placed via a shaft which is provided with a flywheel. The control device includes a circuit for automatically adjusting the control coefficients of the control equation utilized in the control device in accordance with changes in the mechanical inertia of said dynamometer system. The circuit for adjusting the control coefficients includes either a circuit for calculating the control coefficients on the basis of a function obtained from a model matching technique or a circuit for automatically adjusting the control coefficients which calculates the control coefficients on the basis of a regression function obtained experimentally.

REFERENCES:
patent: 3333463 (1967-08-01), Hollinghurst
patent: 4327578 (1982-05-01), D'Angelo
patent: 4382388 (1983-05-01), Ono

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