Ozone Deodorization System Access Control for Vehicle Safety
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Solution Overview
Problem
Ridesharing services lead to increased passenger throughput, making it challenging to maintain vehicle cabins free of unpleasant smells, and existing solutions do not adequately address occupant safety concerns during ozone-based deodorization.
Innovation Solution
A vehicle deodorization system that includes an ozone generator coupled with a HVAC subsystem, an access controller, and sensors to control ozone injection only when the vehicle is locked, windows are closed, and vacant, ceasing injection upon override requests and maintaining the locked state until ozone levels are safe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ozone injection is performed continuously to maintain cabin freshness, then deodorization effectiveness is improved, but occupant safety deteriorates due to potential ozone exposure
Solution Approach 1:
The system performs preliminary actions by locking the vehicle and closing windows before initiating ozone injection. This ensures the cabin is sealed and secured prior to ozone generation, preventing harmful exposure to occupants while maintaining effective deodorization. The access controller is programmed to execute these preliminary safety checks and control measures before the ozone generator activates.
2Ease of operation
If the vehicle is accessible during ozone injection, then ease of operation is improved, but occupant safety deteriorates due to ozone exposure
Solution Approach 1:
The system applies preliminary anti-action by proactively preventing vehicle access during ozone injection through automatic locking control. The access controller is programmed to lock the vehicle doors and prevent entry/exit operations during the ozone generation cycle, counteracting any potential access attempts before they can occur. This ensures occupant safety is maintained while the deodorization process is active.
3Reliability
If ozone injection cycle time is extended to improve deodorization, then deodorization effectiveness is improved, but loss of time increases due to extended vehicle locking period
Solution Approach 1:
The system utilizes parameter changes by dynamically adjusting the ozone injection cycle duration based on cabin conditions and requirements. The controller can modify injection time, intensity, and frequency to achieve effective deodorization while minimizing the total time the vehicle remains locked. This optimization balances deodorization effectiveness with vehicle availability, reducing unnecessary loss of time while maintaining treatment quality.
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
Effectively removes odors while ensuring occupant safety by controlling ozone exposure and maintaining the vehicle locked until safe levels are reached, enhancing deodorization performance and safety.
Implementation Method 1
an ozone generator coupled to the HVAC subsystem, the access controller interface, the cabin monitor interface, and the drive state interface, wherein the ozone generator includes a processor and memory having a set of instructions, which when executed by the processor, cause the ozone generator to initiate an injection of ozone for a predetermined cycle time into the cabin via the HVAC subsystem
Data Source
AI summary
Methods and systems may provide for technology to initiate an injection of ozone for a predetermined cycle time into a cabin of a vehicle via a heating ventilation and air conditioning (HVAC) subsystem of the vehicle only when the vehicle is in a locked state and a window-closed state, the vehicle cabin is vacant, and the vehicle is in park. The technology may also cease the injection of the ozone into the cabin in response to an override request detected before expiration of the predetermined cycle time and maintains the vehicle in the locked state for a predetermined wait time after the injection of the ozone into the cabin is ceased.


