Control device for a braking mechanism using an energy-storing s

Details Control device for a braking mechanism using an energy-storing s Control device for a braking mechanism using an energy-storing s

1976-05-18

1979-01-23

Scott, James R.

Electricity: motive power systems

Braking

Friction braking

185 40R, 185 44, 188162, 188171, H02K 710

Patent

active

041363043

ABSTRACT:
A control system for use with a braking mechanism which employs an energy-storing spring and an electric rotating servomotor is disclosed. The system operates employing a direct or indirect measurement of the stored braking force. When an indirect approach is used, a pair of selsyns supply a measured rotational parameter which is related to braking force. After suitable processing, which includes the use of a discriminator and counter, a parameter relating to the stored braking force is compared with a desired value at a summing point to provide a correction parameter for braking control. When direct braking force measurement is used, the measured braking force is supplied directly to a summing point for comparison with a desired value. In both direct and indirect measurement, a differentiator is included which supplies the derivative of the measured value to the summing point. The output of the summing point is a correction parameter which operates triggering devices for brake actuation and release. These devices in turn control the motor and a brake control winding in the braking mechanism.

REFERENCES:
patent: 2693254 (1954-11-01), Barish
patent: 3092742 (1963-06-01), Smith et al.
patent: 3659683 (1972-05-01), Betzing
patent: 3761790 (1973-09-01), Daab

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