Chassis Control Parameter Updates Using Tire Wear Feedback
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Solution Overview
Problem
Existing vehicle control systems do not effectively utilize tire wear information to optimize suspension, brakes, and powertrain control, leading to uneven tire wear and potential instability.
Innovation Solution
A method that updates vehicle model parameters and tire parameters in chassis control units based on tire sensor information, specifically using tire wear data to adjust power distribution, load distribution, and slip ratios to even out tire wear and maintain vehicle stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If tire wear information is not used to update chassis control parameters, then the control system remains simple and stable, but tire wear becomes uneven and vehicle performance deteriorates
Solution Approach 1:
The system continuously monitors tire wear status through sensors and feeds this information back to the chassis control unit, which then adjusts control parameters (suspension, brakes, powertrain) in real-time to compensate for uneven wear and maintain optimal vehicle performance
Solution Approach 2:
The control system dynamically modifies chassis control parameters (such as suspension stiffness, brake force distribution, and powertrain torque allocation) based on detected tire wear levels, allowing the system to adapt to changing tire conditions without hardware modifications
2Reliability
If tire wear information is used to update power distribution, then traction and vehicle stability improve, but the control algorithm becomes more complex
Solution Approach 1:
The transmission control unit adjusts power distribution to different axles and wheels based on tire wear information, modifying torque allocation parameters to compensate for wear-induced performance degradation and maintain vehicle stability
Solution Approach 2:
The system dynamically adapts powertrain control strategies in real-time based on current tire wear conditions, transitioning between different control modes (such as torque vectoring, differential brake control, or power redistribution) to optimize traction and stability
3Productivity
If real-time tire sensor information is collected and processed, then vehicle performance optimization is achieved, but computational load and processing time increase
Solution Approach 1:
The system pre-establishes lookup tables and control maps that correlate tire wear levels with optimal control parameter adjustments, allowing the control unit to quickly retrieve and apply appropriate settings without performing complex real-time calculations
Solution Approach 2:
The control system automatically processes tire wear information and adjusts chassis parameters without requiring external intervention or complex decision-making algorithms, using rule-based control logic that executes efficiently with minimal computational overhead
Data Source
AI summary
Method for updating at least one vehicle model parameter and at least one tire parameter in at least one chassis control unit of a vehicle, based on tire sensor information collected by a tire sensor placed on a tire. The method includes the steps of: collecting tire sensor information; updating the at least one vehicle model parameter based on updating at least one tire parameter, updating one tire parameter being based on the tire sensor information.