Method and arrangement for the electromagnetic control of a valv

Details Method and arrangement for the electromagnetic control of a valv Method and arrangement for the electromagnetic control of a valv

1999-05-14

2000-12-12

Shaver, Kevin

Valves and valve actuation

Electrically actuated valve

Having element dimensionally responsive to field

361160, 361187, F16K 3102

Patent

active

06158715&

ABSTRACT:
In a method and apparatus for controlling a valve with an electromagnetically operable valve element, when an assigned solenoid is energized by means of a capturing current pulse, the valve element is moved against an elastic restoring force into a stop-defined end position, and reaches the end position at an impact velocity which is controlled by variable adjustment of the capturing current pulse. The impact velocity is controlled by means of a minimal-value control, in which, as the switch-on point in time of the capturing current pulse for a next valve operation, that of a preceding operation plus a control increment is selected, which is defined as a minimum target function of the gradient of the impact velocity determined from preceding operating cycles, as a function of the switch-on point in time.

REFERENCES:
patent: 5804962 (1999-05-01), Kather et al.
patent: 5905625 (1999-05-01), Schebitz

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