Intersection Turn Deceleration Control for Adjacent Vehicle Gaps
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Solution Overview
Problem
Existing driving assistance systems do not adequately consider adjacent vehicles, large-sized vehicles, visibility conditions, crosswalks, obstacles, and driver operations when providing deceleration assistance at intersections, leading to discomfort for drivers.
Innovation Solution
A driving assistance device that includes sensors and communication systems to recognize adjacent vehicles, large-sized vehicles, and environmental conditions, adjusting deceleration assistance based on these factors to maintain a safe vehicle-to-vehicle distance and reduce driver discomfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If deceleration assistance is uniformly applied without considering adjacent vehicles, then the system is simple to implement, but driver discomfort increases due to inappropriate deceleration timing and magnitude
Solution Approach 1:
The system performs preliminary recognition of adjacent vehicles and determination of their travel intentions before executing deceleration assistance. By using external sensors and vehicle-to-vehicle communication to identify adjacent vehicles and predict their turning behavior in advance, the system can adjust deceleration timing and magnitude appropriately, reducing driver discomfort while maintaining reasonable system complexity
Solution Approach 2:
The deceleration assistance system dynamically adjusts its behavior based on real-time detection of adjacent vehicles and their inferred travel intentions. The control amount varies depending on whether adjacent vehicles are turning in the same direction or proceeding straight, allowing the system to optimize driver comfort while adapting to changing traffic conditions
2Ease of operation
If deceleration assistance considers adjacent vehicles turning in the same direction, then driver discomfort is reduced, but the system complexity increases due to additional recognition and determination functions
Solution Approach 1:
The system continuously monitors adjacent vehicles using external sensors and vehicle-to-vehicle communication, feeding this information back to the deceleration control unit. This feedback mechanism allows the system to adjust deceleration assistance based on the travel intentions of adjacent vehicles, improving driver comfort while using established sensor and communication technologies to manage system complexity
Solution Approach 2:
The system uses vehicle-to-vehicle communication as an intermediary to exchange travel intention information with adjacent vehicles. This intermediary approach allows the system to obtain crucial information about adjacent vehicle intentions without requiring complex direct observation mechanisms, thereby reducing driver discomfort while keeping system complexity manageable
3Measurement precision
If the system uses vehicle-to-vehicle communication and external sensors to recognize adjacent vehicles, then deceleration accuracy improves, but the device complexity and cost increase
Solution Approach 1:
The system employs external sensors and vehicle-to-vehicle communication units that serve multiple functions: detecting adjacent vehicles, determining their travel intentions, and providing information for deceleration control. By making these components multi-functional, the system achieves high recognition accuracy without adding dedicated specialized devices for each function, thereby managing overall system complexity
Data Source
AI summary
A driving assistance device configured to execute deceleration assistance for a driver's vehicle when the driver's vehicle turns right or left at an intersection is configured to recognize, based on a detection result from an external sensor of the driver's vehicle, an adjacent vehicle traveling in an adjacent lane adjacent to a traveling lane of the driver's vehicle, determine whether the adjacent vehicle turns in the same direction of the driver's vehicle at the intersection based on the detection result from the external sensor when the adjacent vehicle is recognized and the driver's vehicle turns right or left at the intersection, and execute the deceleration assistance to cause a vehicle-to-vehicle distance between the driver's vehicle and the adjacent vehicle to reach a distance equal to or larger than a target driver's vehicle-to-adjacent vehicle distance when the driving assistance device determines that the adjacent vehicle turns in the same direction.