Steering Wheel Vibration Control for Context-Aware Driver Interaction

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Solution Overview

Problem

Conventional steering wheels lack diversification in control modes, failing to interact effectively with users in various vehicle usage scenarios, thus not meeting the increasing demands for operability and intelligence.

Innovation Solution

A vibration control system for a steering wheel, comprising a controller, information obtaining apparatuses, and a transverse linear motor, which determines and adjusts vibration parameters based on user, multimedia, traveling, environmental, and lighting information to optimize interaction in different scenarios.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional steering wheel control modes are used, then the structure is simple and reliable, but the operability and intelligence do not meet user requirements

Engineering Contradiction:
Improveinteraction capabilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The steering wheel is equipped with multiple information obtaining apparatuses (sensors, cameras, microphones) that enable it to perceive various types of information including user identity, emotional state, environmental conditions, and vehicle status. This multi-functional capability allows the steering wheel to adapt to different usage scenarios and provide context-aware interactions, transforming it from a simple control device to an intelligent interaction hub.

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

Solution Approach 2:

The vibration control system dynamically adjusts vibration parameters (frequency, amplitude, duration, pattern) based on real-time information from multiple sensors. The controller processes information about user identity, emotional state, environmental conditions, and vehicle status to continuously adapt the vibration feedback characteristics, making the steering wheel responsive and adaptive to changing conditions rather than static.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If multiple information obtaining apparatuses are added to enhance interaction, then the adaptability improves, but the device complexity increases

Engineering Contradiction:
Improvescenario adaptabilityVSAvoidcomponent quantity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Multiple information obtaining apparatuses including sensors, cameras, microphones, and other detection devices are integrated into a unified vibration control system. The controller consolidates information from all these apparatuses and coordinates their functions, managing multiple components as a unified system rather than separate independent systems, thereby reducing overall system complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system automatically processes and analyzes information from multiple sensors without requiring manual intervention. The controller autonomously determines user identity, emotional state, and environmental conditions, then automatically adjusts vibration parameters accordingly. This self-service capability reduces the complexity of manual configuration and control that would otherwise be needed.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If vibration parameters are dynamically adjusted based on multiple information types, then the interactive experience is enhanced, but the control complexity increases

Engineering Contradiction:
Improveinteractive experienceVSAvoidcontrol logic complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The system implements multi-loop feedback mechanisms where information from sensors continuously feeds back to the controller, which adjusts vibration parameters in real-time. The controller monitors user responses and environmental changes, then dynamically modifies vibration feedback to maintain optimal interaction. This feedback-driven approach simplifies control logic by using real-time data rather than complex pre-programmed sequences.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The controller adjusts vibration parameters (frequency, amplitude, duration, pattern) based on processed information about user identity, emotional state, environmental conditions, and vehicle status. By changing physical vibration parameters dynamically rather than implementing complex control algorithms, the system enhances interactive experience while keeping control logic relatively simple and manageable.

Inventive Principle:
Principle #35Parameter changes

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 the interactive experience and operability of the steering wheel by adjusting vibration forms according to specific vehicle usage scenarios, thereby better satisfying user requirements.

Implementation Method 1

A transverse linear motor is disposed on the steering wheel. The controller is configured to control, according to the vibration parameter, the transverse linear motor to vibrate

Methodology Applied
Scientific EffectElectromagnetic force: Lorentz Force

Data Source

PatentUS20240351439A1Vibration control system for steering wheel, control method, and vehicle
Publication Date: 2024.10.24 BYD CO LTD
  • US20240351439A1 patent drawing
  • US20240351439A1 patent drawing
  • US20240351439A1 patent drawing

AI summary

A system for controlling vibration of a steering wheel of a vehicle, includes a controller connected to an information obtaining apparatus and the steering wheel. A transverse linear motor is disposed on the steering wheel. The information obtaining apparatus is configured to obtain and to send vibration interaction information to the controller. The vibration interaction information includes user information corresponding to a user of the vehicle, multimedia information of the vehicle, traveling information of the vehicle, environmental information of an environment in which the vehicle is located, or lighting information of the vehicle. The controller is configured to determine a vibration parameter of the steering wheel according to the vibration interaction information, and to control, according to the vibration parameter, the transverse linear motor to vibrate with the steering wheel. The vibration parameter includes a vibration frequency, a vibration amplitude, a vibration duration, or a vibration direction.