Dishwasher Rinsing Agent Detection for Adaptive Drying Control
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Solution Overview
Problem
Conventional dishwashers may incompletely dry washing objects if a rinsing agent is not present, as they operate under a fixed cycle regardless of the agent's availability.
Innovation Solution
A control method for dishwashers that detects the amount of rinsing agent and adjusts the water temperature and drying time to ensure complete drying, either by increasing the temperature during the rinsing or drying processes, or by extending the operating time of the drying fan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the dishwasher operates under a fixed cycle regardless of rinsing agent availability, then the operation is simple and consistent, but the washing object cannot be completely dried when rinsing agent is absent
Solution Approach 1:
The system detects the rinsing agent amount in advance before the wash cycle begins, allowing the control unit to pre-determine and set the appropriate operating conditions (water temperature, drying time) to ensure complete drying regardless of rinsing agent availability
Solution Approach 2:
The dishwasher transitions from a fixed static cycle to a dynamic adaptive cycle that automatically adjusts water temperature and drying time based on the detected rinsing agent amount, enabling the system to optimize drying performance for each specific condition
2Reliability
If the dishwasher increases water temperature and drying time when rinsing agent is insufficient, then complete drying is achieved, but energy consumption increases
Solution Approach 1:
The control unit dynamically adjusts operational parameters (water temperature, drying time) based on the detected rinsing agent amount, increasing these parameters only when necessary to achieve complete drying while avoiding unnecessary energy consumption when rinsing agent is sufficient
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures complete drying of washing objects even when a rinsing agent is not used by automatically resetting operating conditions based on the agent's availability, thereby enhancing drying efficiency.
Implementation Method 1
The rinsing agent may be sprayed, along with water, during the rinsing operation, and may reduce the time taken for the washing object to dry by weakening the surface tension of water.
Implementation Method 2
the drying may include operating a drying fan so as to discharge air inside the tub to an outside
Implementation Method 3
the rinsing may include heating-rinsing the washing object by spraying water, heated to a predetermined temperature, onto the washing object
Data Source
AI summary
A method of controlling a dishwasher includes washing an object accommodated inside a tub by spraying water and detergent onto the object, rinsing the object by spraying water onto the object, drying the object by removing moisture adhered to the object, detecting an amount of a rinsing agent, comparing the detected amount of the rinsing agent to a predetermined amount, based on the comparison, determining whether the detected amount of the rinsing agent is less than the predetermined amount, and increasing at least one of a temperature of water to be supplied in the rinsing or a drying time in the drying based on determining that the detected amount of the rinsing agent is less than the predetermined amount.