Vehicle Size Sensor Adjusts Passing Parameters for Oversized Vehicles
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Solution Overview
Problem
Assisted and automatic driving technologies do not adequately account for the safety and comfort of passengers when passing oversized vehicles, as they may not sufficiently adjust passing parameters to mitigate risks associated with the size of leading vehicles.
Innovation Solution
A vehicle system equipped with a vehicle size sensor and a processor that modifies passing parameters during assisted passing based on the detection of oversized leading vehicles, adjusting parameters such as lane change, speed, and following distance to ensure safety and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If assisted passing is performed with standard passing parameters, then passing efficiency is maintained, but safety and comfort when passing oversized vehicles are insufficient
Solution Approach 1:
The passing parameters are made dynamic rather than fixed. The system continuously monitors the size of the leading vehicle and adjusts passing parameters in real-time based on detected vehicle dimensions, allowing the system to adapt between efficient standard passing and safe oversized vehicle passing
Solution Approach 2:
The system changes passing parameters such as lateral distance, passing speed, and acceleration rates based on the detected size of the leading vehicle. When an oversized vehicle is detected, parameters are modified to increase safety margins while maintaining passing capability
2Reliability
If passing parameters are modified to account for oversized vehicles, then safety and comfort are improved, but system complexity increases
Solution Approach 1:
The vehicle size sensor and control system serve multiple functions: detecting vehicle size, determining if the vehicle is oversized, selecting appropriate passing parameters, and executing the modified passing maneuver. This multi-functionality reduces the need for separate dedicated systems for each function
Solution Approach 2:
The system uses feedback from the vehicle size sensor to continuously monitor leading vehicle dimensions and adjusts passing parameters based on this feedback. The closed-loop control ensures that parameter modifications are made only when necessary, simplifying the overall control logic
Data Source
AI summary
A vehicle system includes a vehicle size sensor mounted in a subject vehicle, the vehicle size sensor configured to detect whether a leading vehicle in front of the subject vehicle is oversized, and a processor coupled to the subject vehicle and the vehicle size sensor. The subject vehicle is configured to perform an assisted passing of the leading vehicle based on a passing parameter that defines a characteristic of the assisted passing, and the processor is programmed to, during the assisted passing: communicate with the vehicle size sensor to determined whether the leading vehicle is oversized, and modify the passing parameter when the leading vehicle is determined to be oversized.