Control device for a braking mechanism using an...

H - Electricity – 02 – K

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H02K 7/10 (2006.01) B60T 13/04 (2006.01) F16D 59/02 (2006.01) F16D 65/14 (2006.01) F16D 66/00 (2006.01) F16D 65/34 (2006.01)

Patent

CA 1090719

ABSTRACT OF THE DISCLOSURE 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.

252948

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