Domestic dishwasher

Abstract

A household dishwasher includes a dishwasher cavity, and a receptacle for items to be washed. The receptacle can be shifted into and at least partially out of the dishwasher cavity. An electric motor having a motor parameter is designed to shift in a driving state the receptacle into or at least partially out of the dishwasher cavity and is decoupled in a free-running state from the receptacle and/or disconnected from a power supply. A detection unit detects a blockage of the receptacle and/or a stop request of a user as a function of the motor parameter, and a switching unit switches the electric motor into the free-running state as a function of the detected blockage or the detected stop request.

1 .- 15  (canceled) 
     
     
         16 . A household dishwasher, comprising;
 a dishwasher cavity;   a receptacle for items to be washed, said receptacle designed to be shifted into and at least partially out of the dishwasher cavity;   an electric motor having a motor parameter and designed to shift in a driving state the receptacle into or at least partially out of the dishwasher cavity and to be decoupled in a free-running state from the receptacle and/or to be disconnected from a power supply;   a detection unit designed to detect a blockage of the receptacle and/or a stop request of a user as a function of the motor parameter; and   a switching unit designed to switch the electric motor into the free-running state as a function of the detected blockage or the detected stop request.   
     
     
         17 . The household dishwasher of  claim 16 , further comprising a regulating unit designed to regulate at least in the driving state the electric motor as a function of a regulating parameter. 
     
     
         18 . The household dishwasher of  claim 17 , wherein the detection unit is designed to detect the blockage of the receptacle and/or the stop request of the user as a function of the regulating parameter. 
     
     
         19 . The household dishwasher of  claim 16 , wherein the detection unit detects the blockage and/or the stop request as a function of a comparison of the motor parameter with a threshold value. 
     
     
         20 . The household dishwasher of  claim 19 , wherein the threshold value has a value which is fixed or variable over time. 
     
     
         21 . The household dishwasher of  claim 17 , wherein the detection unit detects the blockage and/or the stop request as a function of a comparison of the motor parameter with a threshold value which has a value which is variable over time, with the variable value being dependent on the motor parameter, the regulating parameter, a further parameter or a derivative of one or several of the motor parameter, the regulating parameter, and the further parameter. 
     
     
         22 . The household dishwasher of  claim 17 , wherein the electric motor is regulated by a comparison of a target value with an actual value, with the regulating parameter being equal to the target value or the actual value, said detection unit detecting the blockage and/or the stop request as a function of the comparison. 
     
     
         23 . The household dishwasher of  claim 22 , wherein the target value is a target position and the actual value is an actual position of the receptacle. 
     
     
         24 . The household dishwasher of  claim 21 , wherein the further parameter is determined as a function of an actual position of the receptacle relative to a reference position of the receptacle. 
     
     
         25 . The household dishwasher of  claim 24 , wherein the reference position has a value which is fixed or variable over time. 
     
     
         26 . The household dishwasher of  claim 25 , wherein the variable value corresponds to the reference position of a respective start-up position of the receptacle. 
     
     
         27 . The household dishwasher of  claim 26 , wherein the respective start-up position is a half extraction length. 
     
     
         28 . The household dishwasher of  claim 19 , further comprising a machine learning unit designed to determine the threshold value as a function of learning data sets. 
     
     
         29 . The household dishwasher of  claim 16 , further comprising a mechanical coupling element designed to decouple the receptacle in the free-running state from the electric motor or to disconnect the electric motor from the power supply. 
     
     
         30 . The household dishwasher of  claim 16 , further comprising a telescopic extension designed to assist a shift of the receptacle into or at least partially out of the dishwasher cavity and including an element which is driven by the electric motor for shifting the receptacle. 
     
     
         31 . The household dishwasher of  claim 16 , wherein the electric motor is a permanent-magnet synchronous motor. 
     
     
         32 . A method for operating a household dishwasher, comprising:
 a) shifting a receptacle for items to be washed with the aid of an electric motor, which has a motor parameter and/or is regulated as a function of a regulating parameter;   b) detecting a blockage of the receptacle or a stop request of a user as a function of the motor parameter or the regulating parameter; and   c) decoupling the electric motor from the receptacle or disconnecting the electric motor from a power supply as a function of the detected blockage or the detected stop request.