Vehicle Control System for Sensor Working Conditions
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Solution Overview
Problem
Automated motor vehicles face challenges in maintaining optimal working conditions for their sensor units, particularly under unfavorable visibility conditions, where existing methods fail to effectively coordinate sensor data and vehicle control to improve field of view and safety.
Innovation Solution
A method and control system that utilize evaluation units to assess and communicate requests for improving sensor unit working conditions, involving a conflict checking unit to evaluate and prioritize control commands for the vehicle control unit, considering verification and decision criteria to optimize driving maneuvers such as speed and lane changes, ensuring the most reasonable working conditions for sensor units while prioritizing safety and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the motor vehicle performs driving maneuvers to improve sensor view, then the field of view and working conditions of sensor units are improved, but the complexity of control coordination and conflict resolution increases
Solution Approach 1:
The control system is segmented into distinct functional units: evaluation units assess individual sensor working conditions, a conflict checking unit manages contradictions between multiple sensor requests, and a vehicle control unit executes maneuvers. This segmentation allows complex control coordination to be handled modularly, improving sensor detection reliability without overwhelming system complexity.
Solution Approach 2:
The conflict checking unit acts as an intermediary between evaluation units and the vehicle control unit. It receives working condition assessments from multiple evaluation units, resolves contradictions between competing sensor requirements, and generates coordinated control commands. This intermediary layer simplifies the overall control architecture by centralizing the complex conflict resolution function.
2Loss of information
If multiple evaluation units access multiple sensor units simultaneously, then comprehensive sensor data is collected, but conflicts and contradictions in control commands increase
Solution Approach 1:
Evaluation units continuously monitor sensor working conditions and provide feedback to the conflict checking unit. This feedback loop enables the system to detect when multiple sensors have conflicting requirements and triggers the conflict resolution process. The feedback mechanism ensures comprehensive sensor information is collected while managing command coordination complexity through structured communication protocols.
Solution Approach 2:
The conflict checking unit treats all sensor evaluation requests equally, applying consistent verification criteria and decision rules to each. This equipotential approach ensures that no single sensor dominates the control decisions, allowing comprehensive information collection from multiple sensors while resolving conflicts through standardized procedures rather than ad-hoc negotiations.
3Reliability
If driving maneuvers are executed to optimize sensor working conditions, then sensor detection capability is improved, but vehicle safety and comfort may be compromised
Solution Approach 1:
Before executing driving maneuvers to improve sensor working conditions, the conflict checking unit performs preliminary safety verification. It checks whether the proposed maneuver would create harmful effects such as compromising vehicle safety or passenger comfort. If safety risks are detected, the maneuver is modified or rejected before execution, preventing harmful outcomes while still allowing sensor optimization when safe.
Solution Approach 2:
The system performs preliminary assessment of sensor working conditions and pre-evaluates potential maneuvers before they are executed. The conflict checking unit verifies safety criteria in advance, and only approved maneuvers are transmitted to the vehicle control unit for execution. This preliminary action approach ensures sensor detection capability is improved while safety risks are eliminated through pre-verification.
Data Source
AI summary
A method for operating a motor vehicle incorporates polling regarding the control of the motor vehicle, leading to an improvement in the working conditions of a plurality of evaluation units accessing sensor units of the motor vehicle. Control commands for controlling the motor vehicle are determined from this polling by a conflict checking unit. The conflict checking unit determines the feasibility of the control commands, taking into consideration predetermined verification criteria with regard to conflicts between the individual control commands and the practicability of the individual control commands. The conflict checking unit also determines a control specification for a vehicle control unit based on the feasibilities and certain decision criteria. Finally, the motor vehicle is controlled by use of the vehicle control unit in accordance with the control specification.