Autonomous Vehicle Control Switching Before Camera Blind Areas
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing driving assist devices for vehicles experience unstable behavior when switching from camera-based autonomous control to map-based control due to delayed switching, leading to increased vehicle movement in unrecognizable areas.
Innovation Solution
Implementing a system that switches from camera-based autonomous control to map-based control before the vehicle enters an unrecognizable area, using pre-stored map information to set target points and control the vehicle's trajectory, thereby reducing vehicle behavior instability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system waits until the camera fails to recognize compartment lines before switching to map-based control, then the switching decision is made based on actual recognition failure, but the switching is delayed causing large vehicle behavior
Solution Approach 1:
The system performs preliminary actions by determining unrecognizable areas using map information in advance, before the vehicle actually enters them. The control device switches from camera-based to map-based autonomous control while the vehicle is still approaching the unrecognizable area, not after recognition failure occurs. This proactive switching eliminates the delay and prevents large vehicle behavior by transitioning control modes preemptively.
2Measurement precision
If the system uses camera-based autonomous control, then the vehicle can accurately follow recognized travel routes, but the control becomes unstable when entering unrecognizable areas
Solution Approach 1:
The system uses map information as an intermediary to bridge the gap between camera-based and map-based control modes. By determining unrecognizable areas using map information beforehand, the system can smoothly transition to map-based control before camera recognition fails, maintaining control stability. The map information serves as a mediator that enables seamless handover between different control sources.
3Adaptability or versatility
If the system switches to map-based control after camera recognition fails, then the vehicle can continue navigating, but the behavioral changes cause passenger discomfort
Solution Approach 1:
The system applies preliminary anti-action by counteracting the potential harm of large vehicle behavior before it occurs. By switching to map-based control while approaching unrecognizable areas (before camera recognition fails), the system prevents the abrupt behavioral changes that would cause passenger discomfort. The harmful effect is anticipated and countered in advance through proactive mode switching.
Data Source
AI summary
An autonomous speed control function for autonomously controlling a traveling speed of the vehicle and an autonomous steering control function for autonomously controlling steering of the vehicle include executing first autonomous control where, when an external situation of the vehicle is recognizable from a captured image by a camera on the vehicle, the vehicle is autonomously controlled using information recognized from the captured image; executing second autonomous control in which information indicating the external situation of the vehicle is acquired from stored map information provided in the vehicle and the vehicle is autonomously controlled using the acquired information; specifying an unrecognizable area in which the external situation of the vehicle is unrecognizable from the captured image; and when the unrecognizable area is present on a travel route of the vehicle, switching from the first autonomous control to the second autonomous control before the vehicle enters the unrecognizable area.