Vehicle HVAC Vent Control for Solar Heat Gain Targeting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle climate control systems require manual adjustment of HVAC vents, which can be hazardous and lead to reduced driver alertness and compromised visibility due to distractions and sudden air direction changes, particularly when directing air away from the windshield.
Innovation Solution
A system utilizing sensors and processors to automatically control HVAC outlet direction and airflow based on sun position, vehicle orientation, and occupant position to target solar heat gain locations, adjusting airflow rate and temperature to maintain thermal comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment of HVAC vents is implemented, then occupant control over airflow direction is improved, but driver safety and alertness deteriorate due to distractions and visual attention loss
Solution Approach 1:
The HVAC system automatically adjusts vent directions and airflow without requiring manual intervention from the driver or occupant. Sensors detect solar heat gain locations and the system self-regulates airflow distribution, eliminating the need for manual vent adjustments while maintaining thermal comfort
Solution Approach 2:
Manual mechanical adjustment of vent louvers is replaced with an automated electronic control system that uses sensors, processors, and electric actuators to dynamically position vents and control airflow based on real-time environmental conditions and occupant positions
2Ease of operation
If manual adjustment of HVAC vents is implemented, then airflow direction control is improved, but driver alertness deteriorates due to searching for controls and adjustment time
Solution Approach 1:
The system automatically detects when solar heat gain occurs and self-adjusts airflow distribution without requiring the driver to search for or operate vent controls, eliminating time loss and maintaining driver alertness
Solution Approach 2:
Sensors continuously monitor solar position, vehicle orientation, and occupant locations, providing real-time feedback to the control system which automatically adjusts airflow distribution in response to detected thermal conditions
3Temperature
If HVAC airflow is directed away from windshield, then occupant thermal comfort is improved, but visibility deteriorates due to windshield fogging
Solution Approach 1:
The system provides localized thermal management by directing airflow specifically to solar heat gain locations on occupants rather than using general cabin circulation, allowing cooling of overheated areas without redirecting airflow away from the windshield and maintaining visibility
4Temperature
If high-volume air blasts are used, then cooling effectiveness is improved, but driver safety deteriorates due to startle reflexes and vision obstruction
Solution Approach 1:
High-volume airflow is concentrated and directed specifically at solar heat gain locations on occupants rather than creating general cabin air blasts, providing effective cooling at the target area while avoiding sudden air movements that could startle the driver or obstruct vision
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 the need for manual vent adjustments, enhancing occupant thermal comfort and safety by minimizing distractions and maintaining consistent cabin temperature without compromising visibility.
Implementation Method 1
a location sensor for detecting a vehicle location and a vehicle orientation
Implementation Method 2
a light sensor for detecting a light intensity
Implementation Method 3
a processor for determining a sun position with respect to the vehicle location and the vehicle orientation, for determining a solar heat gain location in response to the sun position
Implementation Method 4
a vent controller for positioning an air conditioning vent in response to the control signal such that an air conditioning airflow is directed towards the solar heat gain location
Data Source
AI summary
A method for automatic directional control of an air conditioning vent including detecting a vehicle location and a vehicle orientation, determining a sun position with respect to the vehicle location and the vehicle orientation, determining a solar heat gain location within a vehicle cabin in response to the sun position, generating a control signal indicative of the solar heat gain location, and positioning the air condition vent to direct an airflow towards the solar heat gain location and to adjust the flow rate of the airflow in response to the control signal.