US Patent 11959644 Validation of addition of cleaning chemistry to self-cleaning oven

A system for controlling the initiation of a cleaning process for an interior of an appliance may include a detection sensor and a processor in communication with the detection sensor. The detection sensor may be configured to generate detection sensor data based on a sensed condition in a field of detection of the detection sensor which may comprise one or more pre-determined locations. The processor may control the initiation of an appliance cleaning process. The appliance cleaning process may comprise receiving detection sensor data representative of a first time and a second time, generating an initial condition based on the received detection sensor data representative of the first time, and generating a new condition based on the received detection sensor data representative of the second time. The processor may be additionally configured to compare the initial condition and the new condition and determine if cleaning product is present.