Detecting operational state of a dishwasher
AssigneeElectrolux Home Products, Inc.
InventorsPer-Erik PERS, Petter SVANBOM
Life of this patent
Estimating the term…
Abstract
The present invention relates to a method of and a device (40) for, detecting an operational state of a dishwasher (10), in particular activation of extra wash zones and overfill situations. The device (40) is arranged to operate a motor (22) driving a dishwasher circulation pump (21) at at least one rotational speed differing from a nominal rotational speed and measure operating current of the motor (22) driving the dishwasher circulation pump (21). Further, the device is arranged to determine whether the dishwasher (10) operates in an operational state differing from a nominal operational state based on the measured circulation pump motor operating current.
Claims29
A method of detecting an operational state of a dishwasher, characterized in comprising the steps of:
- operating a motor driving a dishwasher circulation pump at at least one rotational speed differing from a nominal rotational speed;
- measuring operating current of the motor driving the dishwasher circulation pump;
- determining whether the dishwasher operates in an operational state differing from a nominal operational state based on the measured circulation pump motor operating current.
A device for detecting an operational state of a dishwasher, said device being characterized in being arranged to:
- operate a motor driving a dishwasher circulation pump at at least one rotational speed differing from a nominal rotational speed;
- measure operating current of the motor driving the dishwasher circulation pump;
- determine whether the dishwasher operates in an operational state differing from a nominal operational state based on the measured circulation pump motor operating current.
Dependencies are inferred from the claim text.