Crosswind Load Processing for Motor Vehicle Stability
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Solution Overview
Problem
Motor vehicles face challenges in safely navigating through crosswinds, particularly larger vehicles which are more sensitive to crosswind loads due to their size, leading to potential swerving and increased risk of collisions.
Innovation Solution
A system that uses a virtual local map to anticipate crosswind conditions and adjust the vehicle's path in real-time by integrating data from sensors and communication networks to guide the vehicle along a safe travel path, utilizing steering-assisting devices and engine management to mitigate crosswind effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the vehicle uses a larger lateral surface area and higher center of gravity design, then the vehicle achieves better cargo capacity and stability, but the crosswind loads increase significantly making the vehicle more sensitive to wind effects
Solution Approach 1:
The system performs preliminary assessment of crosswind conditions by analyzing travel path information and environmental data before the vehicle encounters the crosswind. The data processing unit calculates expected crosswind loads and determines preventive counter-steering actions in advance, allowing the vehicle to maintain stability without reactive delays
Solution Approach 2:
The system continuously receives feedback from environmental sensors, travel path data, and vehicle state sensors to dynamically adjust steering control. The data processing unit compares actual vehicle response with expected behavior and modifies counter-steering commands in real-time to compensate for crosswind effects on large-vehicle designs
2Reliability
If the driver manually controls the vehicle to compensate for crosswinds, then the vehicle can respond to wind conditions, but the driver may be startled or uncertain due to sudden wind loads reducing safety
Solution Approach 1:
The system enables the vehicle to compensate for crosswind effects autonomously through automated counter-steering control. The data processing unit generates and executes steering commands without requiring driver intervention, eliminating the startling effect of sudden wind loads while maintaining reliable vehicle control
Solution Approach 2:
The system applies preliminary counter-steering actions based on predicted crosswind loads before the actual wind impact occurs. By calculating expected wind forces from travel path and environmental data, the system proactively adjusts steering to prevent vehicle swerving, making the driving experience smoother and more predictable for the driver
3Reliability
If the vehicle reacts to crosswinds after they occur, then the vehicle can compensate for wind effects, but the reaction time is insufficient to prevent swerving and potential collisions
Solution Approach 1:
The system performs preliminary assessment of crosswind conditions by analyzing travel path information and environmental data before the vehicle encounters the crosswind. The data processing unit calculates expected crosswind loads and determines preventive counter-steering actions in advance, allowing the vehicle to maintain stability without reactive delays
Solution Approach 2:
The system dynamically adjusts steering control based on real-time vehicle state and environmental conditions. The data processing unit continuously updates counter-steering commands according to actual crosswind effects observed through sensors, optimizing the timing and magnitude of compensation actions to prevent swerving while adapting to changing wind conditions
Data Source
AI summary
For operating a motor vehicle, a travel path of the motor vehicle across a roadway section of a roadway situated ahead of the motor vehicle and in the direction of travel of the motor vehicle is ascertained. The travel path is defined by an instantaneous running condition of the motor vehicle, a virtual local map that contains instantaneous local wind conditions, an instantaneous location of the motor vehicle on the virtual local map, and information relating to the instantaneous environment of the motor vehicle. The ascertained travel path is used for actuating at least one device of the motor vehicle that influences the instantaneous running condition of the motor vehicle.