Predictive Active Aerodynamics for Vehicle Stability Under Driver Lag
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current control systems for active aerodynamic appendages in road vehicles lag behind driver demands, leading to delays in adjusting these appendages, which affects vehicle stability and performance.
Innovation Solution
Implementing a predictive control system that estimates future aerodynamic load demands and adjusts active aerodynamic appendages in advance to meet these demands, using an actuation control unit with a predictive control algorithm to anticipate and maintain optimal load configurations during grip-limited conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a current control system detects vehicle dynamic conditions and adjusts aerodynamic appendages in response, then the system reacts to driver demands, but the adjustment is delayed because it physically lags behind the driver's requests
Solution Approach 1:
The control system performs preliminary action by predicting future vehicle dynamic conditions based on current state and driver behavior patterns. The aerodynamic appendages are adjusted in advance before the actual grip-limited condition occurs, eliminating the reactive delay. The system calculates predicted lateral acceleration and determines the optimal adjustment timing proactively rather than waiting for the condition to manifest.
Solution Approach 2:
The system implements feedback by continuously monitoring current vehicle dynamic conditions, comparing them against predicted future conditions, and using this information to optimize the timing of aerodynamic appendage adjustments. The feedback loop enables the system to learn from actual driver behavior and refine its predictions, ensuring adjustments occur at the optimal moment for maximum effectiveness.
2Adaptability or versatility
If the control unit adjusts aerodynamic appendages based on detected dynamic conditions, then the vehicle adapts to current conditions, but it cannot anticipate future grip-limited conditions
Solution Approach 1:
The control system performs preliminary action by predicting future vehicle dynamic conditions based on current state and driver behavior patterns. The aerodynamic appendages are adjusted in advance before the actual grip-limited condition occurs, eliminating the reactive delay. The system calculates predicted lateral acceleration and determines the optimal adjustment timing proactively rather than waiting for the condition to manifest.
Solution Approach 2:
The system implements feedback by continuously monitoring current vehicle dynamic conditions, comparing them against predicted future conditions, and using this information to optimize the timing of aerodynamic appendage adjustments. The feedback loop enables the system to learn from actual driver behavior and refine its predictions, ensuring adjustments occur at the optimal moment for maximum effectiveness.
Data Source
Figure 1~2
Figure 3A~3C
Figure 4A~4C
AI summary
A system for controlling at least one active aerodynamic appendage (12) of a road vehicle (1) is described, comprising an actuation control unit (14) operating to implement a predictive control of the active aerodynamic appendage (12), based on an estimation, performed dynamically while the road vehicle (1) is in motion, of an aerodynamic load demand of the road vehicle (1) in a route section subsequent to one currently travelled.