Vehicle Vibration Mitigation via Wheel Phase Angle Synchronization
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Solution Overview
Problem
Vibrations caused by imbalances in tire and wheel assemblies of vehicles lead to operator dissatisfaction and increased warranty replacements, necessitating effective vibration mitigation systems.
Innovation Solution
A vibration mitigation system that includes sensors to measure phase angles of vehicle wheels and a control module to adjust these angles, using brake systems to synchronize wheel phase angles and reduce vibrations by applying braking forces to maintain optimal angular positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional vibration mitigation methods are used, then some vibration reduction is achieved, but the system complexity and cost increase significantly
Solution Approach 1:
The system uses the existing wheel phase angle information from normal wheel speed sensors to detect vibration conditions and automatically adjusts brake application timing to mitigate vibration, allowing the system to self-regulate without external intervention or complex additional sensors
Solution Approach 2:
The brake system is made multi-functional by using it not only for speed control and stopping but also for vibration mitigation through phase angle adjustment, eliminating the need for dedicated vibration control hardware
2Object-affected harmful factors
If wheel phase angles are adjusted to synchronize wheels, then vibration is reduced by up to 45%, but additional control mechanisms are required
Solution Approach 1:
The control module continuously monitors wheel phase angles from sensors and automatically adjusts brake application timing based on the detected phase difference, creating a closed-loop feedback system that maintains synchronized wheel rotation and reduces vibration
Solution Approach 2:
The system dynamically adjusts the brake application timing based on real-time wheel phase angle measurements, allowing the brake system to adapt its control strategy to varying vehicle speeds and wheel synchronization conditions
Data Source
AI summary
Methods and apparatus are provided for mitigating vibration in a vehicle. The apparatus can include a first sensor that generates a first signal that indicates a first phase angle of a first wheel of the vehicle and a second sensor that generates a second signal that indicates a second phase angle of a second wheel of the vehicle. The apparatus can further include a control module that based on the first signal and the second signal outputs a third signal to adjust at least one of the first phase angle and the second phase angle when the vehicle is experiencing a vibration.