Patent ID: 6324045
Filing Date: 2001-11-27
Classification: F16H,G05B,Y10T

Abstract:
A digital two-step controller, comprising:an actuator;an output driver electrically connected to said actuator, said output driver being configured for transmitting a series of analog measured signals to said actuator, with the analog measured signals being separated by a substantially constant sampling period; anda control device including an analog/digital converter and a memory device having a first area, said control device having an output electrically connected with said output driver, said analog/digital converter being configured for receiving each said analog measured signal from said actuator, converting each said analog measured signal into a digital actual value, and storing each said digital actual value in said first area of said memory device, said control device being configured for comparing each said digital actual value stored in said first area of said memory device to a digital set point value for said actuator stored in a second area of said memory device, said output of said control device being configured for being set to logical ZERO if a current said digital actual value is one of greater than and equal to the digital set point value, said output of said control device being configured for being set to logical ONE if a current said digital actual value is less than the digital set point value.