Incremental digital control circuit
AssigneeJ. I. Case Company
InventorGary L. Golobay
Life of this patent
Estimating the term…
Abstract
An incremental digital control system to effect incremental adjustments to an operating system. The control system is responsive to selective relationships between digital signals representative of operational characteristics for producing changes in control signals to effect the desired incremental adjustments.
Claims14
In an implement having a plurality of drive motor means, a plurality of driven members coupled to and driven by said drive motor means, and actuator means selectively operating said drive motor means to drive said driven members;
- a digital control system enabled in response to operation of said actuator means to operate said drive motor means in synchronism for producing selected control signals to effect incremental adjustment of the operation of at least a first one of said drive motor means relative to the operation of a second one of said drive motor means to achieve said synchronized operation thereof, said control system comprising:
- control circuit means for selectively producing different ones of a plurality of possible control signals and for applying said control signals to said first drive motor means to effect an incremental adjustment of the operations thereof relative to said second drive motor means;
- transducer means for producing a plurality of pulse trains in response to operation of said drive motor means, the relationship between individual pulses of said pulse trains being indicative of the operational relationship between said drive motor means;
- selection circuit means responsive to said pulse trains for producing a first selection signal in response to a first relationship between individual pulses of said pulse trains;
- enabling circuit means for producing an enabling signal in response to said selection signal to enable said control circuit for production of a selected control signal;
- and
- trigger circuit means responsive to said pulse trains for producing a trigger signal;
- said enabled control circuit producing said selected control signal in response to said trigger signal.
An incremental digital control system for producing control signals to effect incremental adjustments of selected controllable operational characteristics of operating systems, comprising:
- first circuit means for determining a selected operational characteristic of each of a plurality of operating systems and for producing digital signals representative thereof;
- second circuit means for producing control selection signals and selectively responsive to said digital signals for producing one of said control selection signals;
- third circuit means for producing control enabling signals and selectively responsive to said one control selection signal for producing one of said control enabling signals;
- fourth circuit means selectively responsive to said digital signals for producing a trigger signal;
- and
- fifth circuit means for producing control signals and selectively responsive to said one enabling signal and to said trigger signal for producing a selected one of said control signals,
- whereby said operational characteristic of at least one of said operating systems is incrementally adjusted in response to said selected one of said control signals.
Dependencies are inferred from the claim text.