Vehicle Longitudinal Control With Proactive Target Speed Suggestions
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Solution Overview
Problem
Driver assistance systems for vehicle longitudinal control can confuse drivers and hinder their ability to operate functions effectively due to complexity and unclear activation mechanisms, leading to incorrect activation of speed limits and target speed adjustments.
Innovation Solution
A method and system that capture the permissible maximum speed and analyze subsequent driver operating actions to recognize intent for target speed adjustments, providing notifications and suggestions to assist the driver in adapting the target speed through pattern recognition and comparison with reference operating actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple driver assistance functions are made available for longitudinal control, then the system provides comprehensive assistance capabilities, but the driver becomes confused and unable to operate the functions as desired
Solution Approach 1:
The patent extracts and separates the core function of accepting speed limit from other longitudinal control functions. When the driver activates longitudinal control, the system automatically accepts the speed limit as target speed without requiring separate configuration, thereby simplifying operation while maintaining comprehensive assistance capabilities through other available functions
Solution Approach 2:
The system performs preliminary action by automatically setting the target speed to the speed limit before the driver needs to use the function. This preliminary configuration eliminates the need for drivers to manually configure multiple parameters, reducing operational complexity while preserving full system functionality
2Extent of automation
If the driver assistance system automatically adapts speed to signage, then speed control function is enhanced, but the driver may not understand or control the target speed as intended
Solution Approach 1:
The system provides feedback by notifying the driver when the target speed corresponds to the speed limit. This feedback mechanism ensures the driver understands the system's interpretation of their intent, preventing loss of information about driver preferences while maintaining automatic speed adaptation functionality
Solution Approach 2:
The system performs preliminary action by automatically interpreting the driver's activation of longitudinal control as intent to accept the speed limit. This preliminary interpretation, combined with notification, prevents information loss about driver intent while maintaining high automation levels
3Loss of information
If the system provides detailed information about speed limit acceptance, then driver understanding improves, but the system complexity increases
Solution Approach 1:
The system applies partial action by providing only the essential notification that target speed corresponds to speed limit, rather than providing exhaustive information about all system functions and parameters. This partial information provision improves driver understanding without unnecessarily increasing system complexity
Data Source
AI summary
Systems, methods, and apparatuses for operating a driver assistance system of a vehicle are provided. A permissible maximum speed for a road on which the vehicle is currently moving is captured. A first operating action that is carried out by a driver of the vehicle to activate longitudinal control of the vehicle is captured. The longitudinal control is carried out. A target speed of the vehicle during the longitudinal control corresponds to the permissible maximum speed. A second operating action by the driver that is carried out after the first operating action is analyzed. A notification is output to the driver if it is recognized, based on analysis of the second operating action, that the driver would adapt the target speed using the second operating action.