Active Suspension Damping Control via Infotainment Interface
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Solution Overview
Problem
Current vehicle suspension systems face challenges in providing optimal ride comfort and performance across varying terrains, as they often require compromises that lead to new problems, such as inadequate handling on smooth surfaces or excessive vibration on rough terrain.
Innovation Solution
Integration of an active vehicle suspension system within an in-vehicle infotainment (IVI) system, allowing for automatic and driver-accessible modifications through a mobile device, which uses a remote digital suspension adjuster to adjust shock assemblies based on terrain, weather, and user preferences, utilizing sensors and communication protocols for real-time adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a harder suspension is used, then handling on smooth surfaces is improved, but ride comfort on rough terrain deteriorates
Solution Approach 1:
The patent implements an active suspension system that dynamically adjusts damping characteristics in real-time based on terrain conditions and vehicle state. The control system continuously monitors sensor data and modifies suspension stiffness to optimize both handling and comfort, resolving the contradiction between fixed hard suspension settings and variable terrain requirements.
Solution Approach 2:
The system changes physical parameters of the suspension system by adjusting damping coefficients and spring rates through active control. This allows the suspension to transition between hard and soft characteristics as needed, improving handling when required while reducing vibration when appropriate, thus resolving the contradiction between these opposing performance requirements.
2Object-affected harmful factors
If a softer suspension is used, then ride comfort on rough terrain is improved, but handling on smooth surfaces deteriorates
Solution Approach 1:
The active suspension system dynamically switches between soft and hard damping modes based on real-time terrain detection and vehicle state monitoring. This dynamic adaptation allows the system to provide soft suspension characteristics for comfort on rough terrain while maintaining hard characteristics for handling on smooth surfaces, resolving the contradiction through time-varying control.
Solution Approach 2:
The system modifies suspension parameters including damping coefficients and spring rates according to operating conditions. By actively changing these parameters, the suspension can be softened to reduce vibration on rough terrain or hardened to improve handling on smooth surfaces, thus resolving the performance contradiction.
3Object-affected harmful factors
If suspension travel is increased, then bump absorption capability is improved, but vehicle stability deteriorates
Solution Approach 1:
The active suspension system adjusts damping parameters and spring rates based on real-time vehicle state and terrain conditions. By increasing damping forces when suspension travel is extended, the system maintains vehicle stability even with increased bump absorption capability, thus resolving the contradiction between these two performance aspects.
4Stability of the object's composition
If suspension travel is decreased, then vehicle stability is improved, but bump absorption capability deteriorates
Solution Approach 1:
The system actively modifies suspension parameters including damping coefficients and spring rates to maintain optimal performance. When suspension travel is limited, the system increases damping forces to maintain vehicle stability while preserving adequate bump absorption capability, thus resolving the contradiction between stability and bump absorption.
Data Source
AI summary
A vehicle suspension management via an IVI system is disclosed. The system includes an in-vehicle infotainment (IVI) system and a vehicle suspension system communicatively coupled with the IVI system. The vehicle suspension system includes at least one active shock assembly. A suspension control application on the IVI system, the suspension control application to cause the IVI system to send a signal to the at least one active shock assembly, the signal used to modify a damping characteristic of the at least one active shock assembly.