Bend Speed Recommendation From Occlusion and Fleet Driving Behavior
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Solution Overview
Problem
Existing vehicle systems fail to effectively determine and adjust driving speed in situations where a bend is obscured by an object, leading to potential critical situations due to unseen obstacles like pedestrians or stopped vehicles.
Innovation Solution
A method that detects an obscuring object using a surroundings sensor system, analyzes the speed behavior of preceding vehicles, and transmits this information to a central computer unit to determine an average safe driving speed, which is then communicated to vehicles via digital maps or assistance systems for manual or automated driving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a vehicle drives at high speed through a bend obscured by an object, then productivity is improved, but safety deteriorates due to inability to detect obstacles like pedestrians or stopped vehicles
Solution Approach 1:
The system performs preliminary detection of obscuring objects using surroundings sensors before the vehicle reaches the obscured bend. It proactively determines a reduced speed recommendation based on the detected occlusion, allowing the vehicle to maintain safer speeds in advance rather than reacting to obstacles after they are detected
Solution Approach 2:
The system continuously monitors the surroundings using sensors and feeds this information back to the control unit, which adjusts the speed recommendation accordingly. The system also receives feedback from other vehicles' speed behavior data to refine its speed recommendations for obscured bends
2Reliability
If a vehicle reduces speed to safely negotiate an obscured bend, then safety is improved, but productivity deteriorates due to reduced driving efficiency
Solution Approach 1:
The system applies speed reduction locally only to obscured bends where objects block the view, rather than reducing speed universally. The control unit determines specific speed recommendations based on the degree and location of occlusion, allowing vehicles to maintain optimal speeds on clear road sections while slowing down only where necessary
Solution Approach 2:
The system dynamically changes the speed parameter based on real-time detection of obscuring objects and analysis of other vehicles' behavior. The control unit adjusts the speed recommendation continuously according to the specific conditions of each obscured bend, optimizing the balance between safety and efficiency
3Measurement precision
If the system collects and analyzes speed behavior data from multiple vehicles, then measurement precision is improved for determining safe speeds, but device complexity increases due to additional sensors and data processing requirements
Solution Approach 1:
The system merges data from multiple sources including surroundings sensors detecting obscuring objects, speed behavior data from other vehicles, and digital map information. The control unit integrates these diverse data streams to determine comprehensive speed recommendations, leveraging collective intelligence from multiple vehicles
Solution Approach 2:
The control unit acts as an intermediary that processes sensor data, receives speed behavior information from other vehicles, and generates speed recommendations. This intermediary component coordinates the complex interactions between multiple data sources and the vehicle's driving system
Data Source
AI summary
A driving speed of vehicles adapted to a driving situation is determined when an object located next to a roadway of a vehicle obscures at least portions of a bend lying ahead of the vehicle. Detected speed behavior of other vehicles in the region of the bend, in which a driving speed of the other vehicles in each case falls below a predetermined locally permissible maximum speed for negotiating the bend, is transmitted to an external computer unit. A position of the obscuring object is transmitted to the computer unit, which checks for a causal relationship between the detected speed behavior of the other vehicles and the obscuring object. If there is a causal relationship, an average driving speed for negotiating the bend is stored as a speed recommendation and made available at least to vehicles coupled to the computer unit for data exchange.