Method for controlling an electromechanical actuator drive
AssigneeSiemens Aktiengesellschaft
InventorAchim Koch
Life of this patent
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Abstract
So that an actuator drive which holds an actuator element for actuating, for example, a charge cycle valve of an internal combustion engine, in a limit position by a coil, can be switched at the correct time into the other limit position, the energization of the coil is switched off a certain time period before the time at which the actuator element is to be released from the limit position. Here, the time period is selected as a function of the supply voltage of the actuator drive and/or of the coil current during the holding in the limit position. It is also possible to adapt the time period.
Claims4
A method for controlling an electromechanical actuator drive for driving an actuator element, the electromechanical actuator drive having at least one coil for holding the actuator element in a given position, which comprises the steps of:
- switching-off an energization of the coil a given time period before a point in time at which the actuator element is to be released from the given position;
- and
- determining the given time period in dependence on a supply voltage of at least one of the electromechanical actuator drive and a coil current while the actuator element is held in the given position.
Dependencies are inferred from the claim text.