Branch-Lane Deceleration Control Using Driver Intention Detection
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Solution Overview
Problem
Existing vehicle control systems fail to account for the driver's intention when a road structure requiring deceleration is present in a branching traffic lane, leading to inadequate deceleration control during lane changes.
Innovation Solution
A vehicle control method that integrates road information and driver intention detection to perform deceleration control based on planned traveling routes, using sensors and navigation systems to determine the need for deceleration and adjust vehicle speed accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If deceleration control is performed based on road information of the planned traveling lane, then the vehicle can safely navigate road structures requiring deceleration, but the control may not correspond to the driver's intention when a branch lane is present
Solution Approach 1:
The system obtains driver operation information (steering angle, accelerator depression amount, brake depression amount) as feedback to determine whether the driver intends to follow the planned traveling route. This feedback mechanism allows the deceleration control to adapt to the driver's actual intentions while maintaining safety through proper timing and conditions.
Solution Approach 2:
The deceleration control system dynamically adjusts its behavior based on real-time driver operation information. When the driver's operations indicate intention to follow the planned route, the system performs deceleration control; when operations suggest otherwise, the system suppresses deceleration control. This dynamic adaptation resolves the contradiction between safety and driver intention alignment.
2Adaptability or versatility
If deceleration control is suppressed when driver intention is unclear, then false deceleration is avoided, but safe deceleration may be missed when the driver intends to follow the planned route
Solution Approach 1:
The system performs preliminary assessment of driver intention by continuously monitoring steering angle, accelerator depression amount, and brake depression amount before executing deceleration control. This preliminary action allows the system to determine whether deceleration should be performed in advance, ensuring both safety and accuracy by confirming driver intention before activation.
Solution Approach 2:
The system uses multiple driver operation parameters (steering angle, accelerator depression, brake depression) rather than a single parameter to determine driver intention. This partial or excessive assessment of driver operations increases the accuracy of intention recognition, reducing false negatives while maintaining safety through comprehensive evaluation.
3Measurement precision
If the system monitors multiple driver operation parameters, then driver intention can be accurately determined, but the system complexity increases
Solution Approach 1:
The operation information acquisition unit serves multiple functions by simultaneously monitoring steering angle, accelerator depression amount, and brake depression amount. This multi-functional approach allows the system to accurately detect driver intention using existing sensors already present in the vehicle, avoiding the need for additional specialized sensors or complex hardware while maintaining high measurement precision.
Data Source
AI summary
A vehicle control device operates to: obtain road information of a subject vehicle traffic lane in which the subject vehicle travels and road information of a branching traffic lane branching from the subject vehicle traffic lane when the branching traffic lane is present in a traveling direction of the subject vehicle; determine whether driver operation information indicating an intention of traveling in a planned traveling lane on the planned traveling route has been obtained or not, with the branching traffic lane as the planned traveling lane; determine whether a road structure requiring deceleration of the subject vehicle is present in the planned traveling lane; and perform a deceleration control of the subject vehicle based on the road information when determining that the driver operation information has been obtained and determining that the road structure requiring deceleration of the subject vehicle in the planned traveling lane is present.