Adaptive Steering Wheel Rim With Inflatable Bladders

Solution Overview

Problem

Conventional steering wheel rims fail to adapt to individual user preferences, hand sizes, and varying driving environments, leading to suboptimal comfort and performance.

Innovation Solution

An adaptive steering wheel system with inflatable bladders that adjust size, shape, hardness, and texture based on driver identification, preferences, and environmental conditions, using a control module and vehicle sensors to dynamically modify the grip characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional steering wheel rim with constant size and shape is used, then the device complexity is low, but the adaptability to different users and driving environments is poor

Engineering Contradiction:
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The steering wheel rim incorporates inflatable bladders that can dynamically change the rim's size, shape, hardness, and texture in real-time based on detected driver needs and driving conditions, transforming a static component into an adaptive one

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system modifies physical parameters of the steering wheel rim (size, shape, hardness, texture) by inflating or deflating internal bladders, allowing the same physical structure to provide multiple grip configurations for different users and conditions

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If after-market rim covers are purchased to customize grip characteristics, then the grip comfort for a specific user is improved, but the device complexity and cost increase

Engineering Contradiction:
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The steering wheel rim integrates multiple functions into a single device by incorporating adjustable bladders that can provide different grip characteristics (size, shape, hardness, texture) to accommodate various users and conditions, replacing the need for multiple separate rim covers

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system uses sensors to automatically detect driver state and driving conditions, then autonomously adjusts the bladder inflation levels to optimize grip characteristics without requiring manual intervention or multiple physical configurations

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If the steering wheel rim is made with fixed hardness and texture, then the manufacturing precision is high, but the adaptability to different driving conditions is limited

Engineering Contradiction:
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The rim incorporates inflatable bladders that can dynamically adjust hardness and texture characteristics during operation, allowing the manufacturing process to produce a base structure that can be dynamically modified rather than requiring multiple precision-manufactured variants

Inventive Principle:
Principle #15Dynamics

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

Enhances driver comfort and performance by customizing the steering wheel grip to meet specific driver needs and environmental conditions, improving hand comfort and driving efficiency.

Implementation Method 1

a fluid pump configured to inflate and to deflate the at least one bladder

Methodology Applied
Scientific EffectPneumatics and hydraulics: Pascal's Law

Data Source

PatentUS11433938B2Adaptive steering wheel rim
Publication Date: 2022.09.06
  • US11433938B2 patent drawing
  • US11433938B2 patent drawing
  • US11433938B2 patent drawing

AI summary

A steering wheel for a vehicle comprising: i) a hub adapted to be mounted on a steering column of a vehicle; ii) a rim coupled to the hub; iii) a rim material covering at least a part of the rim; iv) at least one bladder disposed between the rim and the rim material; v) a fluid pump configured to inflate and to deflate the at least one bladder; and vi) a control module coupled to at least one vehicle sensor and configured to control the operation of the fluid pump.