Steering-Column Vent Layout for Uniform Vehicle Airflow

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Solution Overview

Problem

Existing vehicle ventilation systems often fail to provide uniform climate control, leading to excessive cooling or heating in one area and insufficient cooling or heating in another, resulting in discomfort for occupants.

Innovation Solution

A movable air duct system with adjustable lower and upper vents that direct airflow streams based on steering column and seat positions, allowing for customizable airflow ratios and vanes to optimize airflow direction and distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If fixed air vents are positioned to the left and right of the steering column, then the structure is simple and easy to manufacture, but the airflow distribution becomes non-uniform causing excessive cooling/heating in one area and insufficient cooling/heating in another

Engineering Contradiction:
Improvevent structure simplicityVSAvoidairflow distribution uniformity
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The single fixed air vent is segmented into multiple adjustable vents positioned at different locations around the steering column. Each vent can independently direct airflow to different areas, enabling uniform airflow distribution while maintaining structural simplicity through modular design

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The fixed vents are transformed into adjustable vents that can dynamically change their orientation and position. This allows the airflow direction to be adapted in real-time to achieve uniform distribution across different seating positions and environmental conditions

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the steering column position is adjusted, then the driver's comfort is improved, but the airflow direction becomes misaligned causing non-uniform temperature distribution

Engineering Contradiction:
Improvesteering column adjustabilityVSAvoidairflow temperature distribution
Core Design Contradiction:
Ease of operationVSTemperature

Solution Approach 1:

The system incorporates sensors to detect steering column position and airflow characteristics, then uses this feedback to automatically adjust the vent orientations. This closed-loop control ensures that airflow direction remains properly aligned with the driver's position, maintaining uniform temperature distribution even when the steering column is adjusted

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The vents are designed to dynamically adjust their orientation in response to steering column position changes. This dynamic coupling between steering column adjustment and vent positioning ensures that airflow continues to reach the driver effectively regardless of the steering column's position

Inventive Principle:
Principle #15Dynamics

3Device complexity

If a single airflow stream is used, then the system structure is simple, but the airflow cannot be optimized for different seating positions and configurations

Engineering Contradiction:
Improveairflow control system complexityVSAvoidairflow optimization for different configurations
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The single airflow stream is segmented into multiple independent airflow streams, each controlled by a separate adjustable vent. This allows each stream to be optimized for different seating positions and configurations independently, enhancing system versatility while maintaining relatively simple control through individual vent adjustments

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS12515497B2Integrated converging ventilization system
Publication Date: 2026.01.06 RIVIAN HOLDINGS LLC
  • US12515497B2 patent drawing
  • US12515497B2 patent drawing
  • US12515497B2 patent drawing

AI summary

Particular embodiments may provide an airflow control system including a movable air duct, a lower vent, and an upper vent. The movable air duct may be configured to move with adjustments to a steering column. The lower vent may be adjustable in connection with the steering column. The lower vent may include a curvature that directs a lower airflow stream from the movable air duct. The upper vent may be above the lower vent. The upper vent may direct an upper airflow stream. The upper airflow stream may intersect the lower airflow stream to form a merged airflow stream.