Vehicle CO2 Recovery System with Multi-Source Gas Control
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Solution Overview
Problem
Existing CO2 recovery systems for vehicles only recover CO2 from exhaust gas and do not account for CO2 present in the air inside and outside the vehicle, limiting their capability to capture CO2 from multiple sources.
Innovation Solution
A CO2 recovery system that includes a CO2 recovery device and a flow rate control device, which manages the flow of gases from various regions within and outside the vehicle, including air and exhaust gas, using a switching device and pump to direct gases to the recovery device based on CO2 concentration, and optionally returns treated gas back inside the vehicle when the driver's alertness is low.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If only exhaust gas is supplied to the CO2 recovery device, then the device structure is simple, but CO2 recovery from multiple regions (outside air, inside air, exhaust gas) is not possible
Solution Approach 1:
The system divides the CO2 recovery function into separate channels for different gas sources (exhaust gas path with cooling device, outside air path, inside air path). Each path is independently controlled with its own flow rate control device, allowing selective recovery from multiple regions while maintaining manageable structural complexity through modular segmentation.
2Productivity
If gases from multiple regions are supplied to the CO2 recovery device, then CO2 recovery capability is improved, but the system becomes more complex with multiple flow paths and control devices
Solution Approach 1:
The system merges multiple gas sources (exhaust gas, outside air, inside air) into a single CO2 recovery device through separate but integrated flow paths. Each path has its own flow rate control device, and all paths converge at the recovery device, enabling combined CO2 recovery from multiple regions while sharing common recovery infrastructure to minimize overall complexity.
3Reliability
If exhaust gas is cooled before recovery, then CO2 recovery efficiency is improved, but additional cooling devices are required
Solution Approach 1:
The cooling device is applied locally only to the exhaust gas path where high-temperature exhaust gas requires cooling for efficient CO2 recovery. The outside air and inside air paths do not require cooling, so they lack cooling devices. This localized application of cooling improves exhaust gas recovery efficiency while minimizing the number of cooling devices needed in the overall system.
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
Enables efficient recovery of CO2 from multiple sources within and outside the vehicle, optimizing CO2 capture based on concentration and operational conditions, such as vehicle speed and engine status, while maintaining indoor air quality by returning processed gas when needed.
Implementation Method 1
a CO2 recovery device recovering CO2 contained in inflowing gas
Implementation Method 2
a CO2 recovery device recovering CO2 contained in inflowing gas
Implementation Method 3
a pump forcibly sending gases from a plurality of different regions through the switching device to the CO2 recovery device
Implementation Method 4
a first connection passage communicating the exhaust passage with the switching device is provided with a cooling device cooling the gas
Data Source
AI summary
A CO2 recovery system used in a vehicle includes a CO2 recovery device recovering CO2 contained in inflowing gas; and a flow rate control device controlling flow rates of gases present in a plurality of different regions of the vehicle flowing into the CO2 recovery device. The gases present at the plurality of different regions include at least any two among air at an outside of the vehicle, air at an inside of the vehicle, and exhaust gas discharged from a body of an internal combustion engine of the vehicle.