Driving Assistance Apparatus Roadway Detection Control
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Solution Overview
Problem
Existing driving assistance systems can cause discomfort to drivers by performing deceleration control in non-roadway environments, such as parking lots, even when it is safe to travel.
Innovation Solution
A driving assistance apparatus with a controller, determinator, and restraining device that determines whether the vehicle is on a roadway or in a parking lot and restricts deceleration assistance control execution accordingly, ensuring the control is only activated when the vehicle is on a roadway.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If deceleration assistance control is executed when a predetermined condition is satisfied, then deceleration assistance is provided to the host vehicle, but driver discomfort occurs when the vehicle is in non-roadway environments such as parking lots
Solution Approach 1:
The system applies different control characteristics to different locations. When the determinator identifies that the host vehicle is on a roadway, the deceleration assistance control is executed with normal sensitivity. When the vehicle is identified to be in a non-roadway environment such as a parking lot, the restraining device suppresses the control execution. This location-dependent control strategy resolves the contradiction by adapting the system's responsiveness to the specific environment, providing reliable assistance on roadways while avoiding driver discomfort in parking lots.
2Reliability
If deceleration control is performed based on parked vehicles detection, then safety is improved, but false deceleration occurs in parking lots where the driver has already assessed the situation
Solution Approach 1:
The determinator acts as an intermediary between the obstacle detection system and the deceleration control execution. It receives information about the vehicle's location from map data and position information, and based on this intermediate assessment, it either permits or restricts the deceleration control execution. This intermediary layer prevents false deceleration in parking lots by filtering out situations where the driver has already assessed the environment as safe, while maintaining safety on roadways where automated assistance is appropriate.
Data Source
AI summary
A driving assistance apparatus is provided with: a recognizer configured to recognize a surrounding situation of a host vehicle; a controller programmed to execute a deceleration assistance control of assisting in decelerating a host vehicle when a predetermined condition is satisfied; a determinator configured to determine whether or not the host vehicle is traveling on a roadway on the basis of the recognized surrounding situation; and a restraining device configured to restrain execution of the deceleration assistance control by a controller if it is determined that the host vehicle is not traveling on a roadway, in comparison with a situation in which it is determined that the host vehicle is traveling on a roadway.