Dishwasher and method for operating a dishwasher
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Solution Overview
Problem
Users of conventional dishwashers face challenges when needing to accelerate a washing program without compromising cleaning results, as they can only wait for the program to finish or cancel it, leading to incomplete cleaning.
Innovation Solution
A dishwasher with a control device that allows users to input commands to shorten the remaining washing time of a selected program, adjusting parameters such as water temperature, pump speed, and rinse duration to maintain a specified cleaning result, ensuring the program completes more quickly without repeating unnecessary steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If a user cancels the current wash program to get dishes quickly, then the waiting time is reduced, but the cleaning result becomes incomplete
Solution Approach 1:
The system dynamically adjusts the wash program parameters (temperature, water volume, cycle duration) based on user input timing. As the original program progresses, the control device recalculates and modifies remaining steps to achieve acceptable cleaning in shorter time, making the program adaptable rather than static
Solution Approach 2:
The control device changes physical parameters of the wash program (increasing temperature, reducing water volume, shortening cycle duration) when shortening is requested. These parameter modifications allow the system to compress the remaining wash steps while maintaining sufficient cleaning effectiveness
2Productivity
If a rapid wash program is used to reduce washing time, then the productivity increases, but the energy consumption and water usage increase
Solution Approach 1:
Instead of running a complete rapid program from scratch, the system applies partial action by shortening only the remaining portion of the current program. This avoids the excessive energy and water consumption of full rapid programs while still achieving time savings
Solution Approach 2:
The system performs preliminary heating and initial washing steps at normal energy consumption rates, then accelerates only the remaining steps when shortening is requested. This preliminary action at standard rates reduces the need for intensive energy use later
3Reliability
If the user waits for the current wash program to finish, then the cleaning result is complete, but the loss of time increases
Solution Approach 1:
The control device continuously monitors program progress and user inputs, providing feedback-based adjustment. When shortening is requested, the system calculates the optimal modified program based on current state, ensuring cleaning results remain acceptable while reducing time
Data Source
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AI summary
The invention relates to a dishwasher (1), in particular a domestic dishwasher, having a control device (15) for executing a number of washing programs (P1, P2, P3) for washing items to be washed, and an input means (16) for sensing a user input (W) for shortening a running selected washing program (PA), wherein the control device (15) is designed to adapt the running selected washing program (PA) depending on the sensed user input (W) such that a remaining washing duration (RTa) of the adapted selected washing program (PA') is shortened in comparison with a normal remaining washing duration (RTn) of the running selected washing program (PA).