Vehicle Control Responsibility Assignment for Automation Feedback
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Solution Overview
Problem
In vehicles with semi-autonomous and autonomous driver assistance systems, the ambiguity in control responsibility between the driver and the system leads to unstable feedback and implausible driving conditions, as the vehicle systems struggle to allocate control instructions, resulting in limited functionality.
Innovation Solution
A method is introduced to determine and assign control responsibility for each vehicle system during a drive, allowing for clear superposition of control instructions from the driver and the driver assistance system, ensuring unambiguous control by identifying instantaneous driving situations and assigning responsibility via an assignment specification, which can be decentralized or centralized, enabling the vehicle system to function independently of control inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a driver assistance system assumes control responsibility for vehicle systems, then automation level and driving task assumption are improved, but control instruction allocation becomes ambiguous and feedback stability deteriorates
Solution Approach 1:
The patent segments control responsibility by creating distinct operational modes (manual mode and autonomous mode) that clearly define whether the driver or driver assistance system has control authority. This segmentation eliminates the ambiguity of shared control by ensuring that at any given time, one entity has primary responsibility for control instructions, thereby maintaining feedback stability while enabling high automation levels.
2Adaptability or versatility
If control responsibility is shared between driver and driver assistance system, then system versatility and adaptability are improved, but control instruction clarity and system reliability deteriorate
Solution Approach 1:
The patent implements dynamic switching between operational modes based on driving situations. The system can transition between manual mode (driver has control) and autonomous mode (driver assistance system has control) depending on the instantaneous driving situation. This dynamic adaptation allows the system to be versatile across different scenarios while maintaining clear control instruction allocation within each mode, thus preserving reliability.
3Adaptability or versatility
If dynamic steering superposes steering angles from both driver and driver assistance system, then steering functionality is improved, but feedback stability and control precision deteriorate due to conflicting instructions
Solution Approach 1:
The patent introduces an intermediary control mechanism that mediates between driver input and driver assistance system commands. The system includes a driver assistance system control unit that receives control instructions from both the driver (via steering wheel angle) and the autonomous driving function, then applies control responsibility logic to determine which instruction takes precedence in each operational mode. This intermediary layer ensures that only one source of control instruction is active at a time, maintaining precision while preserving full steering functionality.
Data Source
AI summary
The disclosure relates to a method, a device and a motor vehicle for controlling at least one vehicle system of the motor vehicle during a drive, wherein each vehicle system is respectively adapted to perform a driving maneuver of the motor vehicle and for each vehicle system a control responsibility determines, in which proportion a driver and a driver assistance system of the motor vehicle each controls the vehicle system, the method comprising the steps of: providing an assignment specification with which a control responsibility is assigned for different driving situations in each case for each vehicle system; identifying an instantaneous driving situation while driving and determining the respectively assigned control responsibility in each vehicle system according to the assignment specification; receiving control instructions from the driver and from the driver assistance system for each vehicle system; and for each vehicle system, superposing control instructions from the driver and from the driver assistance system intended for said vehicle system in accordance with the control responsibility.