Motor Vehicle Fragrance Diffuser Adaptive Control
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Solution Overview
Problem
Existing fragrance diffusers in motor vehicles suffer from suboptimal control mechanisms, leading to habituation reactions and decreased olfactory perception and relaxing effects over time, as users become accustomed to the fragrance due to manual controls and lack of adaptive diffusion strategies.
Innovation Solution
A method for diffusing fragrance in motor vehicles that adjusts diffusion parameters based on interior temperature and air conditioning system parameters, employing an intermittent cycle with decreasing diffusion phase duration and increasing pause phase duration as temperature rises, to maintain balanced olfactory perception and compensate for fragrance concentration loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual control mechanisms are used for fragrance diffusion, then device complexity is reduced, but olfactory perception quality deteriorates due to habituation reactions
Solution Approach 1:
The patent implements dynamic control of diffusion parameters (duration, intensity, intervals) that automatically adapt based on cumulative diffusion time and environmental conditions. The control mechanism transitions from static manual settings to dynamic automated adjustment, resolving the contradiction by making the system intelligent rather than complex.
Solution Approach 2:
The system incorporates feedback loops that monitor cumulative diffusion time and environmental parameters (temperature, sunlight, air conditioning) to automatically adjust diffusion parameters. This feedback mechanism prevents habituation by adapting the fragrance delivery based on actual usage patterns and environmental conditions.
2Duration of action of stationary object
If continuous fragrance diffusion is maintained, then fragrance presence is ensured, but olfactory perception diminishes due to user habituation over time
Solution Approach 1:
The patent implements periodic diffusion cycles with varying durations and intervals rather than continuous diffusion. The system alternates between diffusion phases and pause phases, creating a rhythmic pattern that prevents habituation while maintaining fragrance presence. The periodic action adapts based on cumulative diffusion time and environmental conditions.
Solution Approach 2:
The diffusion pattern transitions from static continuous delivery to dynamic periodic delivery with varying intensities and intervals. The system automatically adjusts the diffusion schedule to optimize olfactory perception by preventing constant exposure that leads to habituation.
3Reliability
If diffusion parameters are adjusted based on cumulative diffusion time, then olfactory perception is optimized, but device complexity increases
Solution Approach 1:
The system implements self-service control where the diffuser automatically tracks cumulative diffusion time and adjusts parameters without user intervention. The control mechanism serves itself by autonomously making decisions based on programmed logic, reducing the need for complex user interfaces while maintaining optimized diffusion patterns.
Solution Approach 2:
The system uses internal feedback from cumulative diffusion time tracking to automatically adjust diffusion parameters. This self-regulating mechanism optimizes olfactory perception through straightforward feedback loops rather than complex control algorithms.
4Reliability
If diffusion phase duration is decreased with increasing temperature, then olfactory perception is maintained, but energy consumption increases
Solution Approach 1:
The system dynamically changes diffusion parameters (duration, intensity, intervals) based on environmental temperature and other conditions. Rather than maintaining fixed diffusion patterns, the system adapts parameters to environmental conditions, optimizing energy use while maintaining consistent olfactory perception through compensatory adjustments.
Solution Approach 2:
The diffusion system transitions from static fixed-duration operation to dynamic condition-based operation. The control mechanism automatically adjusts diffusion characteristics in response to environmental changes, balancing energy consumption with consistent fragrance delivery through intelligent adaptation.
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 approach ensures a consistent and balanced olfactory experience for passengers by dynamically adjusting fragrance diffusion phases in response to temperature and air conditioning conditions, thereby enhancing the relaxing effects of the fragrance.
Implementation Method 1
diffusion of the fragrance according to a cycle reproduced a predetermined number of times and comprising a diffusion phase followed by a pause phase
Implementation Method 2
passes the air, hot or cold, supplied in this passenger compartment by a fan or by simple natural convection
Data Source
Figure 1~2
Figure 3
AI summary
The present invention relates to a method of diffusing fragrance in the passenger compartment of a motor vehicle for a diffuser of the type comprising a removable cartridge having at least one reservoir containing said fragrance, one or more of the diffusion parameters (TD, TP) of said fragrance varying according to the interior temperature prevailing in the passenger compartment and certain parameters of the air conditioning system of said vehicle; characterized in that at least one (TD, TP) of said diffusion parameters of said fragrance varies according to the cumulative diffusion time of said fragrance since the installation of said cartridge.