Automated Driving Pull Force Mitigation When Passing Large Vehicles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Vehicles experience significant pull force impacts when passing larger vehicles, leading to oscillations and stability issues, particularly in scenarios involving towing or hitched systems.
Innovation Solution
A method and system utilizing sensors to obtain perception and vehicle dynamics data, which is processed to identify passing vehicles, determine pull force and its impact, and automatically implement corrective actions such as adjusting braking, steering, or propulsion to mitigate these impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a vehicle passes a large vehicle on the roadway, then the passing maneuver is completed, but pull force impacts cause oscillation and stability issues
Solution Approach 1:
The system applies preliminary anti-action by detecting the approach of a large vehicle and pre-applying counteracting forces through the braking system before the pull force impact occurs. The processor calculates expected pull forces based on relative position and velocity data, then applies braking torque to the drive wheels in advance to counteract the impending oscillation, thereby maintaining vehicle stability during the passing maneuver.
Solution Approach 2:
The system implements feedback by continuously monitoring vehicle dynamics sensor data including lateral acceleration, yaw rate, and wheel speed, then using this information to dynamically adjust braking torque applied to individual wheels. The processor compares actual vehicle response against expected behavior and modifies braking forces in real-time to compensate for pull force impacts, creating a closed-loop control system that maintains stability during passing maneuvers.
2Stability of the object's composition
If automated corrective actions are implemented to mitigate pull force impacts, then vehicle stability is improved, but system complexity increases
Solution Approach 1:
The system achieves universality by using a single processor to perform multiple functions: detecting large vehicles using perception sensor data, calculating pull forces, determining corrective braking actions, and controlling the braking system. The same sensor suite serves both for general vehicle operation and specifically for pull force mitigation. This multi-functional approach reduces overall system complexity compared to having separate dedicated systems for each function.
Solution Approach 2:
The system implements self-service by automatically detecting pull force conditions and applying corrective braking actions without driver intervention. The processor autonomously monitors vehicle dynamics, identifies when pull forces are affecting stability, and independently controls the braking system to counteract these forces. This self-managing capability eliminates the need for complex driver training or manual intervention systems while maintaining vehicle stability.
Data Source
AI summary
Methods and systems are provided for determining and mitigating vehicle pull force from passing other vehicles. In an exemplary embodiment, methods and systems are provided that include: obtaining sensor data via one or more sensors of a vehicle, the sensor data including both perception sensor data and vehicle dynamics sensor data; identifying, via a processor, one or more additional vehicles to be passed by the vehicle, using the perception sensor data; and predicting and determining, via the processor, a pull force for the vehicle that is caused by the passing of the vehicle by the one or more additional vehicles along with an impact of the pull force on the vehicle, based on both the perception sensor data and the vehicle dynamics sensor data, and control the vehicle to proactively mitigate the pull force on the vehicle; and vehicle with trailer when towing.