Turning Alert Zone Detection for Long-Wheelbase Vehicle Maneuvers
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Solution Overview
Problem
Conventional blind spot monitoring (BSM) and intelligent clearance sonar (ICS) systems do not effectively account for objects in a vehicle's path during turning maneuvers, particularly for vehicles with a long wheelbase, which can lead to inadequate alert coverage for object and pedestrian avoidance.
Innovation Solution
A system incorporating an object detection sensor, a vehicle turning angle sensor, and a processor that determines a turning alert zone based on vehicle speed and turning angle, and controls vehicle operations to prevent collisions by alerting the driver or autonomously adjusting the vehicle's path if an object is detected within this zone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional blind spot monitoring (BSM) and intelligent clearance sonar (ICS) systems are used, then basic object detection is provided, but alert coverage is insufficient during turning maneuvers especially for vehicles with long wheelbase
Solution Approach 1:
The system dynamically adjusts the monitoring zone based on vehicle turning angle and speed. The turning alert zone is not fixed but changes shape and position according to real-time vehicle state, allowing the system to adapt to different turning maneuvers and maintain reliable detection coverage
Solution Approach 2:
The system adds a new spatial dimension to object detection by creating a turning alert zone that extends laterally beyond the traditional blind spot area. This additional detection dimension ensures objects in the vehicle's potential path during turning are identified, improving alert coverage without relying solely on conventional BSM/ICS zones
2Stability of the object's composition
If the vehicle has a long wheelbase, then vehicle stability is improved, but the turning path covers a larger area increasing the risk of missing objects in blind spots
Solution Approach 1:
The system proactively defines a turning alert zone before the vehicle completes its turning maneuver. By detecting the vehicle's turning intent and pre-establishing the monitoring area based on predicted turning path, the system ensures continuous coverage of the expanded area swept by the long wheelbase vehicle during rotation
3Ease of manufacture
If traditional BSM and ICS systems are used, then simple object detection is achieved, but they do not account for the unique circumstances when a vehicle is turning or approaching a turning maneuver
Solution Approach 1:
The system integrates multiple functions into a unified turning alert system. The same sensor array used for general blind spot monitoring is also utilized for detecting turning maneuvers and defining turning alert zones, allowing the system to handle both straight-line and turning scenarios without requiring entirely separate detection systems
Solution Approach 2:
The system changes operational parameters based on vehicle state. When turning is detected, the system adjusts the monitoring zone geometry, detection sensitivity, and alert thresholds to account for the dynamic turning circumstances, transitioning from static blind spot monitoring to adaptive turning-aware detection
Data Source
AI summary
A system for controlling operation of a vehicle during a turning maneuver includes an object detection sensor, a vehicle turning angle sensor, and a processor. A memory is communicably coupled to the processor and stores a turning alert zone module configured to determine if a speed of the vehicle is within a predetermined range of speeds and, if the speed of the vehicle is within the predetermined range of speeds, determine if a vehicle turning angle is above a predetermined threshold value. If the turning angle is above the predetermined threshold value, and using the turning angle, a turning alert zone is determined. The system may then determine if at least a portion of an object resides in the turning alert zone and, if at least a portion of an object resides in the turning alert zone, control an operation of the vehicle (for example, a braking operation).