Dishwasher Liquid-Level Control for Transport Overflow Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Dishwashers used in mobile means of transport face challenges in preventing overflowing of the washing tank due to accelerations, tilting, and fluctuations, which existing structural measures cannot effectively address without increasing the installation height or altering the basic construction, making them uneconomical for production.
Innovation Solution
A dishwasher with a variably adjustable washing tank level controlled by a feedback controller and spatial information, using sensors and a self-learning algorithm to determine the target level, ensuring the washing tank remains filled without overflowing during transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If raised overflow edges are provided on the washing tank to prevent overflowing during transport, then protection from overflowing is improved, but the useful height of the interior space is reduced and the installation height increases
Solution Approach 1:
The patent applies dynamics by making the target filling level variable rather than fixed. The control device adjusts the target filling level dynamically based on spatial orientation data from sensors (accelerometers, gyroscopes) and information about upcoming maneuvers (braking, cornering, hill climbing). This allows the system to adapt to changing transport conditions without requiring permanent structural modifications like raised overflow edges, thereby maintaining the original installation height while preventing overflow.
Solution Approach 2:
The patent implements feedback control by continuously monitoring spatial orientation through sensors and using this information to adjust the target filling level. The control device receives real-time data about the dishwasher's orientation and upcoming maneuvers, compares the current filling level with the dynamically adjusted target level, and controls the filling device accordingly. This closed-loop feedback system prevents overflow during transport without requiring increased tank height or structural modifications.
2Reliability
If structural measures are taken to prevent overflowing, then protection from overflowing is improved, but the basic construction must be changed which increases manufacturing complexity and cost
Solution Approach 1:
The patent implements feedback control by continuously monitoring spatial orientation through sensors and using this information to adjust the target filling level. The control device receives real-time data about the dishwasher's orientation and upcoming maneuvers, compares the current filling level with the dynamically adjusted target level, and controls the filling device accordingly. This closed-loop feedback system prevents overflow during transport without requiring increased tank height or structural modifications.
Solution Approach 2:
The patent replaces mechanical/structural solutions (raised overflow edges, modified tank construction) with an electronic control system. Instead of physically modifying the washing tank structure, the system uses sensors to detect spatial orientation and maneuver conditions, then uses electronic control to dynamically adjust the target filling level. This substitution of mechanical design with electronic control simplifies manufacturing while maintaining overflow protection.
3Quantity of substance
If the target filling level is kept high to maximize water availability, then cleaning performance is improved, but the risk of overflowing during transport increases
Solution Approach 1:
The patent applies dynamics by making the target filling level variable rather than fixed. The control device adjusts the target filling level dynamically based on spatial orientation data from sensors (accelerometers, gyroscopes) and information about upcoming maneuvers (braking, cornering, hill climbing). This allows the system to adapt to changing transport conditions without requiring permanent structural modifications like raised overflow edges, thereby maintaining the original installation height while preventing overflow.
Solution Approach 2:
The patent applies preliminary action by proactively lowering the target filling level before maneuvers that could cause overflow (braking, cornering, hill climbing) occur. The control device receives advance information about upcoming maneuvers and adjusts the filling target accordingly, preventing the harmful effect of overflow before it can occur. This anticipatory adjustment ensures water availability is optimized for each specific transport condition.
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
This solution prevents unwanted overflowing of the washing tank during transport by adaptively adjusting the liquid level based on spatial information, eliminating the need for structural modifications and maintaining the dishwasher's original height and space usage.
Implementation Method 1
at least one receiving device for receiving at least one item of spatial information concerning the dishwasher
Data Source
AI summary
The invention relates to a dishwasher (110) for use in a means of transport (114) The dishwasher comprises a) at least one cleaning chamber (122) for receiving an item (112) to be cleaned, b) at least one application device (130) for applying the item (112) to be cleaned in the cleaning chamber (122) with at least one cleaning fluid (126): c) at least one washing tank (128) for receiving the at least one cleaning fluid (126), wherein the dishwasher (110) is designed to control a fill level of the washing tank (128) with the cleaning fluid (126) to a variably adjustable target level; d) at least one receiving device (186) for receiving at least one item of spatial information relating to the dishwasher (110); and e) at least one controller (166), wherein the controller (166) is programmed to determine the target level according to the spatial information.