Discretionary Lane Change Control with Driver-Selectable Activation
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Solution Overview
Problem
Existing vehicle systems lack the ability to selectively activate discretionary lane change functions based on predefined conditions and driver input, limiting the flexibility and convenience of autonomous driving operations.
Innovation Solution
A vehicle system is equipped with sensors, a communication interface, and a processor that determines the activation of discretionary lane change functions based on vehicle state, driver requests, and environmental conditions, ensuring the vehicle is within an operational design domain, devices are functioning normally, and has a satisfactory field of view, and allows for manual override of automatic execution conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the discretionary lane change function is automatically activated based on preset conditions, then the convenience of autonomous driving is improved, but the driver's control and safety oversight may be reduced
Solution Approach 1:
The system dynamically adjusts the activation mode of the discretionary lane change function based on real-time driver input. The processor can switch between automatic execution mode (when driver selects convenience) and manual confirmation mode (when driver prioritizes control), making the system's behavior adaptable to the driver's immediate preferences while maintaining both convenience and safety options available
Solution Approach 2:
The system incorporates continuous feedback from the driver through the communication interface, allowing the driver to select execution modes, provide lane change requests, or override automatic decisions. This feedback loop ensures the driver maintains oversight and control while still benefiting from automated lane change capabilities when desired
2Reliability
If the system checks multiple conditions (operational design domain, device status, field of view) before activation, then the safety is improved, but the system complexity increases
Solution Approach 1:
The processor performs preliminary checks of multiple conditions (operational design domain verification, device status monitoring, field of view validation) before activating the discretionary lane change function. By verifying all necessary conditions in advance, the system ensures safety requirements are met while maintaining a clear, systematic activation process that manages complexity through structured pre-validation
Solution Approach 2:
The activation determination process is segmented into distinct condition checks: operational design domain verification, device status monitoring, and field of view validation. Each condition is evaluated independently by the processor, allowing systematic verification of multiple safety criteria while keeping the overall system architecture modular and manageable
3Stability of the object's composition
If the lane keeping function is activated first as a prerequisite, then the stability of autonomous driving is improved, but the time to perform discretionary lane change increases
Solution Approach 1:
The lane keeping function is activated in advance as a prerequisite before the discretionary lane change function is executed. By establishing stable lane keeping control beforehand, the system ensures a solid foundation for subsequent lane change operations, preventing instability during the transition while the sequential activation process manages the time requirement through efficient processing
Data Source
AI summary
Disclosed is a vehicle configured to provide a discretionary lane change. The vehicle may include a processor configured to: receive, from a driver of the vehicle via the communication interface, a request to activate a lane keeping function of the autonomous driving operation; determine, based on the request, whether the vehicle is in a state capable of performing the lane keeping function of the autonomous driving operation; activate, based on the vehicle being in the state capable of performing the lane keeping function of the autonomous driving operation, the lane keeping function of the autonomous driving operation; determine whether to activate a discretionary lane change function of the autonomous driving operation; and control, based on whether the discretionary lane change function of the autonomous driving operation is activated, the autonomous driving operation of the vehicle.