Route Incident Prioritization for Smooth Vehicle Deceleration
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Solution Overview
Problem
Existing vehicle systems face challenges in providing a smooth and comfortable driving experience when navigating multiple route incidents, such as speed limits and bends, due to abrupt transitions between different deceleration strategies.
Innovation Solution
A device and method that analyzes upcoming route incidents using digital maps and environmental sensors to determine target speed profiles, adapting the vehicle's deceleration strategies based on incident types, and prioritizing relevant incidents to minimize abrupt changes in driving behavior.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle determines separate deceleration strategies for each route incident, then the vehicle can respond appropriately to each incident's specific speed requirements, but abrupt transitions between different deceleration strategies occur causing uncomfortable driving behavior
Solution Approach 1:
The patent merges multiple deceleration strategies into a single unified strategy by determining a common intervention position that serves all upcoming route incidents. Instead of switching between separate deceleration profiles for each incident, the system combines them into one continuous deceleration curve that satisfies all incident speed requirements, eliminating abrupt transitions and improving driving comfort while maintaining reliable response to each incident.
Solution Approach 2:
The system performs preliminary analysis of all upcoming route incidents before determining the deceleration strategy. By evaluating all future incidents in advance and calculating a unified intervention position that accommodates all of them, the system avoids last-minute strategy changes and abrupt transitions, ensuring smooth and comfortable deceleration throughout the approach to each incident.
2Reliability
If the vehicle applies aggressive deceleration to reach incident positions on time, then the vehicle meets speed limits and safety requirements, but the driving behavior becomes unnatural and uncomfortable
Solution Approach 1:
The patent changes the parameter of deceleration timing by determining intervention positions dynamically based on incident type and distance. Instead of applying fixed aggressive deceleration, the system adjusts the intervention position parameter to occur earlier for distant incidents and later for close incidents, creating a more natural driving behavior that still ensures compliance with all speed limits and safety requirements.
Data Source
AI summary
Methods, systems, and apparatuses for analyzing upcoming route incidents on a driving route of a vehicle in the automated longitudinal guidance of the vehicle are provided. A first upcoming route incident at a first incident position is detected on the driving route of the vehicle. A first speed profile of the vehicle is predicted up to the first incident position considering the first route incident in the automated longitudinal guidance of the vehicle. Based on the first speed profile, it is determined whether or not a second route incident becomes relevant to the automated longitudinal guidance of the vehicle before the first incident position is reached. The automated longitudinal guidance of the vehicle is affected on the driving route up to the first incident position at least in certain areas based on the second route incident if it is determined that the second route incident or no further route incident at all becomes relevant to the automated longitudinal guidance of the vehicle before the first incident position is reached.