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US 2019/0158005 A1Published application
Method and device for the cyclic digital transmission of a position value of a moving object with inertial mass
AssigneeSew-Eurodrive GmbH & Co. KG
InventorOlaf SIMON
Life of this patent
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Abstract
In a method and device for the cyclic digital transmission of a position value of a moving object with inertial mass, the value range of the transmitted position value is restricted such that no complete rotation or, in the case of a linear motion, other complete period caused by mechanical conditions may be mapped, and the actual position is formed by detecting value-range exceedances in an evaluation unit.
Claims10
A method for closed-loop control of a drive, comprising:
- recurrently detecting a position value over time;
- transmitting to a control device information associated with the detection of the position value, the position value being characterized by at least two values, a first value being denotable with a whole number, and a position-value range being assigned to each number, each position range being characterized by a first value being assigned mutually separate sub-ranges of the position range, each of the sub-ranges being characterized by a second value denotable as a whole number;
- transmitting the second value prior in time to the first value;
- and
- repeatedly:
- after transmitting a newly detected second value, determining a first value that corresponds to a newly detected first value from the newly detected and the previously transmitted second value;
- and
- using the determined position value by the control device to determine an updated value of a manipulated variable of the control device.
5 more elements
A method for closed-loop control of a drive, comprising:
- recurrently detecting a position value over time;
- transmitting to a control device information associated with the detection of the position value, the position value being characterized by at least two values, a first value being denotable with a whole number, and a position-value range being assigned to each number, each position range being characterized by a first value being assigned mutually separate sub-ranges of the position range, each of the sub-ranges being characterized by a second value denotable as a whole number;
- transmitting the second value prior in time to the first value;
- and
- repeatedly:
- (i) after transmitting a newly detected second value, determining a first value that corresponds to a newly detected first value from the newly detected and the previously transmitted second value, additionally taking into account a last determined velocity, and using the determined position value by the control device to determine an updated value of a manipulated variable of the control device;
- and
- (ii) after transmitting the newly detected second value, updating the velocity value based on the newly detected first value and the newly detected second value, taking into account the previously detected first value and the previously detected second value.
5 more elements
Dependencies are inferred from the claim text.