Automated Lane Change Control Device Driver Intent Protection
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Solution Overview
Problem
Automated lane change control systems in vehicles often fail to respect the driver's intent, leading to unintended consecutive lane changes.
Innovation Solution
The system detects a preceding vehicle and determines if a predetermined condition is met, allowing a lane change after a first predetermined time has elapsed, and assesses if the previous lane change was driver-intended, setting a longer second predetermined time to prohibit subsequent automated lane changes if so, ensuring the system only changes lanes when the driver desires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If automated lane change control is continuously executed based on vehicle correlation, then lane changing automation is improved, but driver intent is violated due to unintended consecutive lane changes
Solution Approach 1:
The system implements periodic action by introducing a prohibition period after a driver-intended lane change. During this period, automated lane change control is suspended, allowing the driver's intent to prevail. This periodic suspension prevents continuous automated lane changes and ensures the driver's choice is respected for a set duration.
Solution Approach 2:
The system uses feedback by monitoring whether a previous lane change was driver-intended or automated. Based on this feedback, the control unit adjusts its behavior by either allowing or prohibiting subsequent automated lane changes. This feedback mechanism ensures the system adapts to driver preferences and avoids unintended consecutive lane changes.
2Speed
If automated lane change control executes immediately when conditions are met, then responsiveness is improved, but consecutive unintended lane changes occur violating driver intent
Solution Approach 1:
The system applies preliminary action by assessing whether a previous lane change was driver-intended before executing a new automated lane change. This preliminary check prevents unintended consecutive lane changes by proactively identifying situations where automated execution would violate driver intent, thereby maintaining both responsiveness and reliability.
3Productivity
If the prohibition period is set to zero, then automated lane change responsiveness is maximized, but driver intent is consistently violated through consecutive automated changes
Solution Approach 1:
The system implements periodic action by introducing a prohibition period after a driver-intended lane change. During this period, automated lane change control is suspended, allowing the driver's intent to prevail. This periodic suspension prevents continuous automated lane changes and ensures the driver's choice is respected for a set duration.
Data Source
AI summary
An automated lane change control detects a preceding vehicle that is traveling in a same travel lane as a host vehicle, determines whether a predetermined condition is satisfied between the host vehicle and the preceding vehicle, and executes an automated lane change in the host vehicle after a first predetermined time has elapsed from determining that the predetermined condition is satisfied. The automated lane change of the host vehicle is executed after a first predetermined time has elapsed after determining that the predetermined condition has been satisfied. A second predetermined time is set that is longer than the first predetermined time as a time for prohibiting the automated lane change upon assessing the presents of a previous driver lane change. The automated lane change is prohibited in an interval that starts when a prohibiting condition is satisfied and ends when the second predetermined time elapses.