Lane Change Assist Control Using High-Accuracy Map Availability
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Solution Overview
Problem
Passengers may feel uncomfortable due to varying vehicle behavior during lane change assist control, depending on the use of highly accurate map information.
Innovation Solution
A control device that executes lane change assist control only when highly accurate map information is available, ensuring reliable and smooth lane changes by utilizing this information to manage drive assist modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If highly accurate map information is used for lane change assist control, then lane change reliability and smoothness are improved, but passenger comfort deteriorates due to varying vehicle behavior
Solution Approach 1:
The system performs preliminary action by acquiring highly accurate map information in advance before executing lane change assist control. The control unit checks whether the vehicle position can be accurately identified using the pre-acquired map information, and only enables lane change assist control when the information is available, thereby ensuring consistent and reliable vehicle behavior before the actual lane change operation.
2Object-affected harmful factors
If lane change assist control is executed without highly accurate map information, then passenger comfort is maintained, but lane change reliability deteriorates
Solution Approach 1:
The system applies dynamics by making the availability of lane change assist control dynamic rather than static. The control unit continuously checks whether highly accurate map information is available for the current vehicle position, enabling or disabling the lane change assist control function dynamically based on the presence of reliable map data, thus adapting the system behavior to the available information quality.
3Ease of operation
If lane change assist control is always available, then ease of operation is improved, but control precision deteriorates due to varying vehicle behavior
Solution Approach 1:
The system applies local quality by making the control precision and vehicle behavior consistency dependent on the local availability of highly accurate map information. Rather than using a uniform control approach everywhere, the system enables precise lane change assist control only in locations where high-definition map data is available, ensuring high vehicle behavior consistency in those specific areas while maintaining ease of operation where data exists.
Data Source
AI summary
A control device controlling a vehicle, includes a control unit configured to execute lane change assist control of the vehicle, and an acquisition unit configured to acquire highly accurate map information that contains location information within a lane. When the acquisition unit acquires the highly accurate map information that contains information regarding a road on which the vehicle is running, the control unit is configured to be capable of executing the lane change assist control, and when the acquisition unit does not acquire the highly accurate map information that contains the information regarding a road on which the vehicle is running, the control unit does not execute the lane change assist control.