An automated cleaning machine includes a trained cleaning outcome classifier that automatically classifies or scores cleaning outcomes for a cleaning machine using machine learning techniques. The cleaning outcome classifier may be trained on training data comprising a plurality of training inputs and a known output for each of the plurality of training inputs. Each of the plurality of training inputs may include one or more cleaning process parameters corresponding to a cleaning process executed by a cleaning machine executed during a training phase. The known output for each training input may include a cleaning outcome classification or score. The cleaning outcome of a novel cleaning process may then be classified or scored with the trained cleaning outcome classifier based on one or more cleaning process parameters corresponding to the novel cleaning process.

A dishwasher appliance includes a sump, a water supply valve for providing a flow of water into the sump, and a circulation pump that circulates water that is collected in the sump to one or more spray arm assemblies. A pressure sensor is operably coupled to the sump for monitoring sump pressure and wash fluid level. A controller regulates the water supply valve to provide the flow of water into the sump and monitors the sump pressure during the fill process. The controller further determines that the circulation pump is primed when the rate of increase of the sump pressure exceeds the predetermined threshold rate and stops further filling of the sump.

Dishwashing appliances and methods, as provided herein, may include features or steps such as activating the drain pump for an activation period and receiving a pump-status signal during the activation period. Dishwashing appliances and methods may further include features or steps for detecting a pressure (P1) upstream from the drain pump during the activation period, determining a condition at the filter based on the pump-status signal and P1, and directing the drain pump based on the determined condition.

A dishwasher includes a tub defining a wash chamber, a wash rack provided within the wash chamber, an air inlet in fluid communication with the wash chamber at a first position, an air exhaust outlet in fluid communication with the wash chamber at a second position different from the first position, a first gas sensor provided in the dishwasher, and a controller configured to initiate an operation sequence. The operation sequence includes initiating a drying cycle, receiving an air-quality signal from the first gas sensor, measuring, during the drying cycle, an air-quality characteristic within the wash chamber of the dishwasher, determining the measured air-quality characteristic is below a predetermined air-quality threshold, calculating a drying time in response to determining the measured air-quality characteristic is below the predetermined air-quality threshold, and halting the drying cycle in response to an expiration of the drying time.

A system for ascertaining fresh water consumption by an, in particular, commercial dishwasher (1) or a component thereof. The system includes a container (12, 22) for temporarily storing liquids, wherein the container (12, 22) has a liquid inlet (25), which can be flow-connected to a fresh water source if required, and a liquid outlet (23), which can be flow-connected to a freshwater consuming means, in particular a freshwater consuming means of the dishwasher (1), if required. The system further includes at least one pressure sensor (B3, B4) for detecting an, in particular, hydrostatic pressure in the container (12, 22), and an evaluation device which is designed to ascertain a fresh water volume flow into the container (12, 22) depending on at least one output value of the at least one pressure sensor (B3, B4).

A method for cleaning items to be cleaned is disclosed. A cleaning device is used that has at least one cleaning chamber and at least one applicator for applying at least one cleaning fluid to the items to be cleaned in the cleaning chamber. A desired hygiene value is prespecified. The method further includes time-resolved recording of at least two influencing variables which influence hygienization of the items to be cleaned. Hygiene share values are determined from the influencing variables using a prespecified relationship between each influencing variable and the respective hygiene value share of said influencing variable. An expected actual hygiene value at the end of the cleaning from the hygiene value shares is ascertained and compared with the desired hygiene value. At least one of the influencing variables is changed based on the comparison. An inventive cleaning device is also disclosed.

A method for obtaining information about a load of articles to be cleaned in a dishwasher is provided. The method may include stopping a pump from pumping liquid through a spraying system of the dishwasher at a point of time; recording a pressure signal in a sump of the dishwasher from the point of time the pump was stopped; measuring a time period, said time period being measured from the point of time the pump stopped until the pressure signal is essentially stable; and comparing the time period with reference values for obtaining information about the load in the dishwasher. A corresponding dishwasher, computer program, and computer program product may be provided.

A dishwasher, in particular a household dishwasher, includes a mechanism for modifying odor. The mechanism for modifying odor includes an ozone generator for odor neutralization in a dishwasher cavity and a system for fragrance introduction into the dishwasher cavity. A control device has stored therein a process, which firstly provides for the odor neutralization by the ozone generator and then introduction of a new fragrance by the system for fragrance introduction.

A dishwasher appliance includes a sump that defines a transition fill level where the cross sectional area of the sump increases. A pressure sensor is operably coupled to the sump for monitoring sump pressure and wash fluid level. A controller opens a water supply valve to provide a flow of water into the sump and monitors the sump pressure using the pressure sensor. The controller determines when the water has reached the transition fill level corresponding to a known transition fill volume. The controller determines a fill flow rate based on the amount of time needed to reach the transition fill volume and uses the fill flow rate to determine a remaining fill time needed to reach a target volume.

A dishwasher appliance includes a sump, a water supply valve for providing a flow of water into the sump, and a circulation pump that circulates water that is collected in the sump to one or more spray arm assemblies. A pressure sensor is operably coupled to the sump for monitoring sump pressure and wash fluid level. A controller regulates the water supply valve to provide the flow of water into the sump and monitors the sump pressure during the fill process. The controller further determines that the circulation pump is primed when the rate of increase of the sump pressure exceeds the predetermined threshold rate and stops further filling of the sump.