Vehicle-Trailer Stability Monitoring for Pendulum Risk Assessment
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Solution Overview
Problem
The increasing automation of driving tasks can lead to vehicle instability, particularly in vehicle-trailer combinations, due to factors like rapid steering movements, trailer angle, and environmental conditions, which can result in uncontrollable destabilization and potential accidents.
Innovation Solution
An apparatus and method for monitoring the stability of an ego vehicle, specifically a vehicle-trailer combination, using driver assistance devices, an evaluation unit to determine the degree of pendulum motion risk, and an assessment unit to assess whether automated guidance will lead to pendulum initiation or intensification, with the ability to deactivate or suppress driver assistance devices if the risk exceeds a threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If driver assistance devices perform automated guidance of the ego vehicle, then the ease of operation is improved, but the stability of the vehicle deteriorates due to potential pendulum motion
Solution Approach 1:
The system performs preliminary assessment of pendulum motion risk before activating driver assistance devices. The evaluation unit determines the degree of pendulum motion in advance, and the assessment unit evaluates whether activation will lead to pendulum initiation or intensification, preventing instability before it occurs
Solution Approach 2:
The system continuously monitors vehicle state and trailer conditions, using sensor data to determine pendulum motion degree and assess risks in real-time. This feedback loop allows the system to adjust driver assistance device activation status based on current stability conditions
2Stability of the object's composition
If the system deactivates driver assistance devices to prevent pendulum motion, then the vehicle stability is improved, but the ease of operation deteriorates due to loss of automated guidance
Solution Approach 1:
The system dynamically adjusts the activation status of driver assistance devices based on real-time assessment of pendulum motion risk. When risk is low, automated guidance is available; when risk exceeds threshold, activation is suppressed. This dynamic adaptation resolves the contradiction by making the system flexible rather than static
3Productivity
If multiple driver assistance devices are activated simultaneously, then the productivity of driving tasks is improved, but the stability deteriorates due to conflicting guidance tasks
Solution Approach 1:
Before activating multiple driver assistance devices, the system performs preliminary assessment to ensure that their combined operation will not lead to pendulum initiation or intensification. This prevents stability issues before they arise from multiple simultaneous interventions
Solution Approach 2:
The system takes preliminary anti-action by suppressing activation of driver assistance devices when assessment indicates they would contribute to pendulum motion. This prevents the harmful effect of conflicting guidance tasks before they can destabilize the vehicle
Data Source
AI summary
The present disclosure relates to an apparatus for monitoring the stability of an ego vehicle, including at least a first and a second driver assistance device, the at least first and second driver assistance device being designed to guide the ego vehicle; an evaluation unit which is designed to determine a degree of risk of a detected and/or anticipated pendulum motion of the ego vehicle. An assessment unit is further included, the assessment unit being designed to assess, on the basis of the determined degree of risk, whether the at least first and/or second driver assistance device in an active state will lead to pendulum initiation or pendulum intensification of the ego vehicle.