Domestic dishwasher, and method for operating a domestic dishwasher

Abstract

A household dishwasher includes a washing container holding a dishwasher load, and a container holding an operating material and arranged outside the washing container and accessible via an opening in an interior of the washing container when a door of the household dishwasher is open. A spray arm applies washing liquor to the dishwasher load and is actively driven by a drive entity. A detection entity is operably connected to a drive element of the drive entity for detecting an angular position of the drive element. A control device determines an angular position of the spray arm as a function of the detected angular position of the drive element and, as a function of the determined angular position of the spray arm, activates the drive entity to stop the spray arm within a predefined angular range that is outside an angular range defined by an access region of the opening.

1 - 12 . (canceled) 
     
     
         13 . A household dishwasher, comprising:
 a washing container for holding a dishwasher load;   a container for holding an operating material, said container arranged outside the washing container and accessible via an opening in an interior of the washing container when a door of the household dishwasher is open;   a spray arm for applying washing liquor to the dishwasher load;   a drive entity for actively driving the spray arm;   a detection entity operably connected to a drive element of the drive entity for detecting an angular position of the drive element; and   a control device for activating the drive entity, said control device being configured to determine an angular position of the spray arm as a function of the detected angular position of the drive element and, as a function of the determined angular position of the spray arm, to activate the drive entity to stop the spray arm within a predefined angular range that is outside an angular range defined by an access region of the opening.   
     
     
         14 . The household dishwasher of  claim 13 , further comprising a lid configured to close the opening. 
     
     
         15 . The household dishwasher of  claim 13 , further comprising a water softening device for adjusting a water hardness of supplied water, said container comprising a salt container arranged below a bottom of the washing container for holding a stock of regeneration salt. 
     
     
         16 . The household dishwasher of  claim 13 , further comprising a dishwasher loading rack, wherein the predefined angular range is specified in such a way that a longitudinal direction of the spray arm in the predefined angular range is parallel to a push-in direction of the dishwasher loading rack. 
     
     
         17 . The household dishwasher of  claim 13 , further comprising a gear set arranged between the drive entity and the spray arm for power transmission, said control device being configured to determine the angular position of the spray arm as a function of a transmission ratio of the gear set. 
     
     
         18 . The household dishwasher of  claim 13 , wherein the spray arm comprises a spray arm satellite which is rotatably mounted on the spray arm, said spray arm satellite, in the predefined angular range of the spray arm, being outside the access region of the opening in any possible rotational position of the spray arm satellite. 
     
     
         19 . The household dishwasher of  claim 18 , wherein the spray arm is mounted for rotation about an axis of rotation, said spray arm satellite being mounted for rotation about an axis of rotation which is arranged parallel to and at a distance from the axis of rotation of the spray arm. 
     
     
         20 . The household dishwasher of  claim 13 , wherein the detection entity for detecting the angular position of the drive element comprises an optical, magnetic, electrical and/or mechanical sensor entity. 
     
     
         21 . The household dishwasher of  claim 13 , wherein the detection entity for detecting the angular position of the drive element is configured with an accuracy of 10°. 
     
     
         22 . The household dishwasher of  claim 13 , wherein the detection entity for detecting the angular position of the drive element is configured with an accuracy of 8°. 
     
     
         23 . The household dishwasher of  claim 13 , wherein the detection entity for detecting the angular position of the drive element is configured with an accuracy of 5°. 
     
     
         24 . The household dishwasher of  claim 13 , wherein the drive entity comprises an electric motor which is arranged outside the washing container. 
     
     
         25 . The household dishwasher of  claim 24 , wherein the detection entity for detecting the angular position of the drive element is configured as a function of a transducer signal from a motor control of the electric motor. 
     
     
         26 . A method for operating a household dishwasher which includes a drive entity for actively driving a spray arm for applying washing liquor to a dishwasher load in a washing container, and a container arranged outside the washing container and accessible via an opening in an interior of the washing container when the door of the household dishwasher is open, said method comprising:
 detecting an angular position of a drive element of the drive entity by a detection entity;   determining an angular position of the spray arm as a function of the detected angular position of the drive element; and   stopping the spray arm in a predefined angular range, which is outside an angular range defined by an access region of the opening, as a function of the determined angular position of the spray arm.   
     
     
         27 . A controlled spray arm for a household dishwasher having a washing container with an access opening inside an interior of the washing container, comprising:
 a spray arm for applying washing liquor to a dishwasher load;   a drive entity for actively driving the spray arm;   a detection entity operably connected to a drive element of the drive entity for detecting an angular position of the drive element; and   a control device for activating the drive entity, said control device being configured to determine an angular position of the spray arm as a function of the detected angular position of the drive element and, as a function of the determined angular position of the spray arm, to activate the drive entity to stop the spray arm within a predefined angular range that is outside an angular range defined by an access region of the access opening.   
     
     
         28 . The controlled spray arm of  claim 27 , further comprising a gear set arranged between the drive entity and the spray arm for power transmission, said control device being configured to determine the angular position of the spray arm as a function of a transmission ratio of the gear set. 
     
     
         29 . The controlled spray arm of  claim 27 , wherein the spray arm comprises a spray arm satellite which is rotatably mounted on the spray arm, said spray arm satellite, in the predefined angular range of the spray arm, being outside the access region of the opening in any possible rotational position of the spray arm satellite. 
     
     
         30 . The controlled spray arm of  claim 29 , wherein the spray arm is mounted for rotation about an axis of rotation, said spray arm satellite being mounted for rotation about an axis of rotation which is arranged parallel to and at a distance from the axis of rotation of the spray arm. 
     
     
         31 . The controlled spray arm of  claim 27 , wherein the detection entity for detecting the angular position of the drive element comprises an optical, magnetic, electrical and/or mechanical sensor entity. 
     
     
         33 . The controlled spray arm of  claim 27 , wherein the detection entity for detecting the angular position of the drive element is configured with an accuracy of 10°. 
     
     
         34 . The controlled spray arm of  claim 27 , wherein the detection entity for detecting the angular position of the drive element is configured with an accuracy of 8°. 
     
     
         35 . The controlled spray arm of  claim 27 , wherein the detection entity for detecting the angular position of the drive element is configured with an accuracy of 5°. 
     
     
         36 . The controlled spray arm of  claim 27 , wherein the drive entity comprises an electric motor which is arranged outside the washing container. 
     
     
         37 . The controlled spray arm of  claim 36 , wherein the detection entity for detecting the angular position of the drive element is configured as a function of a transducer signal from a motor control of the electric motor.