Vehicle Ventilation Air Inlet Switching for Energy and Water Control
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Solution Overview
Problem
Existing vehicle ventilation systems face high energy consumption, slow temperature adjustment, and water ingress issues, leading to reduced efficiency, increased environmental impact, and compromised safety and comfort.
Innovation Solution
A vehicle ventilation system with dual air inlets and a controllable valve assembly that directs air intake from locations in front and behind the front body panel, utilizing temperature differentials to optimize heating and cooling, and a control arrangement for automatic adjustment based on weather and compartment temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If air is taken from location in front of the front body panel, then the ventilation apparatus can provide cooling effect, but energy consumption increases and heating efficiency decreases
Solution Approach 1:
The system dynamically switches between first air inlets (in front of front body panel) and second air inlets (behind front body panel) based on real-time temperature and weather conditions. The control arrangement adjusts the valve assembly position to optimize air intake location, enabling the ventilation apparatus to adaptively select the most energy-efficient air source for current operating conditions.
Solution Approach 2:
The control arrangement monitors temperature parameters and weather conditions to determine optimal air intake strategy. By changing the operational parameter of air inlet selection based on temperature differentials and environmental conditions, the system achieves energy optimization without requiring additional heating or cooling capacity.
2Use of energy by moving object
If air is taken from location behind the front body panel, then energy consumption decreases and heating efficiency improves, but water ingress risk increases
Solution Approach 1:
The control arrangement continuously monitors weather conditions and compartment temperature to make real-time decisions about air inlet selection. This feedback mechanism allows the system to switch to second air inlets when conditions favor energy efficiency while maintaining protection against water ingress, and to switch back to first air inlets when weather conditions pose a risk.
Solution Approach 2:
The valve assembly acts as an intermediary component that controls airflow path selection between first and second air inlets. By positioning the valve assembly within the ventilation apparatus and using it to direct airflow, the system can access the energy-efficient second air inlets while maintaining a controlled interface that prevents water ingress.
3Speed
If large-sized components are used for rapid heating or cooling, then temperature adjustment speed increases, but system weight, size, and complexity increase
Solution Approach 1:
The system utilizes naturally occurring temperature differentials between air at different locations around the vehicle as a free resource for heating and cooling. By strategically selecting air intake locations based on thermal conditions, the ventilation apparatus performs heating or cooling functions using environmental heat sources or sinks, eliminating the need for large, complex active heating or cooling components.
Solution Approach 2:
The system converts the typically wasted thermal energy in the air behind the front body panel (which may be heated by engine or ambient conditions) into a useful heating resource. By capturing this otherwise wasted thermal energy through the second air inlets, the system achieves rapid heating without requiring large, complex heating components.
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
Reduces energy consumption, enhances rapid temperature adjustment, minimizes water ingress, and improves safety and comfort by optimizing energy use without increasing system size or complexity, thus extending vehicle range and reducing operational costs.
Implementation Method 1
utilizing temperature differentials to optimize heating and cooling
Implementation Method 2
Heating or cooling the air within the occupant compartment requires energy input
Implementation Method 3
Heating or cooling the air within the occupant compartment requires energy input
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
Vehicle comprising an occupant compartment (3), a ventilation apparatus (1) configured to deliver air into the occupant compartment (3), a front body panel (4) facing in a forward moving direction (fd) of the vehicle, one or more first air inlets (i1) each arranged to conduct air into the ventilation apparatus (1) from a location (L1) in front of the front body panel (4), one or more second air inlets (i2) each arranged to conduct air into the ventilation apparatus (1) from a location (L2) behind the front body panel (4), and a valve assembly (5) controllable between a first state, in which the ventilation apparatus (1) delivers air into the occupant compartment (3) from the one or more first air inlets (i1), and a second state, in which the ventilation apparatus (1) delivers air into the occupant compartment (3) from the one or more second air inlets (i2).