Automated Driving Discrepancy Scoring and Algorithm Adaptation
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Solution Overview
Problem
Existing methods for determining a driver's driving behavior in relation to an automated driving system and adapting control algorithms for vehicle fleets lack precision and effectiveness in quantifying discrepancies and optimizing system performance.
Innovation Solution
A method that records driver control commands and vehicle trajectories during manual driving, simulates automated driving system trajectories, and calculates a score value to measure discrepancies between driver and automated driving behaviors. This method also adapts control algorithms based on statistically evaluated score values from multiple vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If driver behavior is compared to automated driving system behavior using existing methods, then a qualitative assessment can be obtained, but precise quantification of discrepancies is lacking
Solution Approach 1:
The patent transforms qualitative driving behavior comparisons into quantitative measurements by introducing score values that represent the probability of trajectory correspondence. This parameter transformation enables precise measurement of discrepancies between driver and automated system behaviors through statistical evaluation of multiple trajectory probabilities.
Solution Approach 2:
The patent introduces simulated trajectories as an intermediary element that bridges the comparison between actual driver behavior and automated driving system behavior. By generating multiple simulated trajectories with associated probabilities, the system creates a measurable intermediate representation that enables precise discrepancy quantification without direct complex comparison.
2Productivity
If control algorithms are adapted for vehicle fleets without systematic evaluation, then deployment is faster, but effectiveness in optimizing system performance is reduced
Solution Approach 1:
The patent implements a feedback mechanism where score values from multiple vehicles are collected, statistically evaluated, and used to identify positions with relevant discrepancies. This feedback loop enables systematic adaptation of control algorithms based on actual performance data, ensuring both speed and effectiveness in fleet-wide optimization.
Solution Approach 2:
The patent performs preliminary statistical evaluation of score values across the vehicle fleet before deploying adapted control algorithms. By pre-identifying positions with relevant discrepancies and preparing optimized algorithms in advance, the system enables rapid deployment without sacrificing optimization effectiveness.
3Reliability
If statistical evaluation of score values is performed for all positions, then comprehensive optimization is achieved, but computational resources and time are excessive
Solution Approach 1:
The patent extracts and focuses computational resources on only those positions where relevant discrepancies are identified through statistical evaluation of score values. By filtering out positions without significant discrepancies, the system achieves comprehensive optimization where needed while minimizing unnecessary computational expenditure on positions that do not require optimization.
Data Source
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AI summary
The invention relates to a method for determining a driving behaviour of a driver in relation to a driving behaviour of an automated driving system of a vehicle (2). According to the invention, actuating commands (SB) from the driver and a manually navigated trajectory (r) of the vehicle (2) are detected during manual driving operation of the vehicle (2). In a first calculation path (R1), determination is performed as to which automated actuating commands the automated driving system would generate in a respectively current actual position of the vehicle (2) on the manually navigated trajectory (r) if the automated driving system were active. In a second calculation path (R2), a trajectory (ß, ß', ß0 to ß2) of the vehicle (2) which the vehicle (2) would cover with the automated driving system active is simulated. Depending on the detected actuating commands (SB) from the driver and the automated actuating commands and/or the manually navigated trajectory (r) and the simulated trajectory (ß, ß', ß0 to ß2), at least one score value (SW1 to SW4) is determined as a measure of a discrepancy between the driving behaviour of the driver and the driving behaviour of the automated driving system. The invention further relates to a method and a device (12) for adapting control algorithms of automated driving systems of vehicles (2) of a vehicle fleet.