Lean Vehicle Rider Assistance Tuned to Turning Posture
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Solution Overview
Problem
Existing assistance systems for lean vehicles may execute unexpected operations that scare riders, particularly when they are focusing on road conditions in front while banking, thereby compromising their ability to focus on driving safely.
Innovation Solution
A controller for an assistance system that acquires positional and turning posture information of a lean vehicle relative to surrounding vehicles, adjusting assistance operations based on this information to prevent unexpected notifications or actions that might distract the rider.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the assistance system executes assistance operations based on surrounding environment information, then the rider is assisted in driving the lean vehicle, but the assistance operation may be executed unexpectedly for the rider when the rider is focusing on road conditions in front, causing the rider to be scared and unable to focus on driving
Solution Approach 1:
The system performs preliminary assessment by acquiring turning posture information before executing assistance operations. The controller determines whether the lean vehicle is in a turning state based on posture data (roll angle, yaw rate) before activating assistance functions, preventing unexpected operations during critical maneuvering phases when rider attention is naturally focused forward
Solution Approach 2:
The assistance system dynamically adjusts its operation based on real-time turning posture information. The controller continuously monitors roll angle and yaw rate to determine turning states, and modulates assistance operations accordingly - suppressing notifications during active turns while enabling them during straight-line travel, making the system adaptive to rider needs
2Ease of operation
If the assistance operation is executed to assist the rider, then the rider receives help in driving, but the operation may scare the rider when executed during banking maneuvers
Solution Approach 1:
The system implements feedback control by continuously acquiring turning posture information (roll angle, yaw rate) and using this data to regulate assistance operations. The controller receives real-time posture data, determines turning states, and adjusts assistance operation execution accordingly, creating a closed-loop system that prevents distraction during critical maneuvers
Solution Approach 2:
The controller performs preliminary determination of turning state using posture information before executing assistance operations. By assessing the vehicle's roll angle and yaw rate in advance, the system proactively decides whether to suppress or enable assistance notifications, preventing rider distraction before it occurs
Data Source
AI summary
The present disclosure provides a controller and a control method for an assistance system that improves a rider's safety.A controller (20) has an acquisition section (21) and an execution section (22). The acquisition section acquires a positional relationship information regarding a lean vehicle (100) and another vehicle located behind or on a lateral side of the lean vehicle (100). The acquisition section acquires the positional relationship information while the lean vehicle (100) is traveling based on a surrounding environment information that is information about an environment around the lean vehicle. The execution section executes an assistance operation based on the positional relationship information while the lean vehicle (100) is traveling. The assistance operation assists a rider of the lean vehicle (100) in driving the lean vehicle (100). The acquisition section acquires, while the lean vehicle (100) is traveling, a turning posture information of the lean vehicle (100). The execution section changes the assistance operation according to the turning posture information acquired by the acquisition section (21).