Lean Vehicle Rider Assistance Using Dynamic Clearance Reference
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Solution Overview
Problem
Conventional rider assistance systems fail to account for the changing space occupied by lean vehicles due to their posture, leading to inappropriate assistance operations during turns.
Innovation Solution
A controller and method that acquires environment information and posture information to determine reference clearance, allowing for appropriate driving assistance operations by considering the lean vehicle's posture changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional rider assistance systems use fixed space assumptions for lean vehicles, then the system complexity is reduced, but the accuracy of driving assistance operations deteriorates when the vehicle posture changes
Solution Approach 1:
The patent applies the dynamics principle by making the reference clearance information dynamic rather than fixed. The system acquires posture information from sensors (accelerometers, gyroscopes, or camera-based posture detection) and updates the reference clearance based on the detected lean vehicle posture. This allows the driving assistance system to adapt to changing vehicle orientations during turns, maintaining accuracy without requiring overly complex manual reconfiguration
Solution Approach 2:
The system implements feedback by continuously acquiring posture information from sensors and using this information to adjust the reference clearance. The posture detection feedback loop enables the system to automatically compensate for posture changes during leaning, ensuring accurate clearance calculations without increasing overall system complexity
2Ease of operation
If rider assistance systems do not consider posture changes, then the ease of operation is improved, but the reliability of assistance operations deteriorates during turns
Solution Approach 1:
The system applies self-service by automatically detecting posture changes through onboard sensors and adjusting the reference clearance without requiring rider intervention. The lean vehicle itself provides the posture information through its motion, and the system autonomously processes this data to maintain reliable assistance operations during dynamic turning maneuvers
3Measurement precision
If the system acquires and processes posture information to determine reference clearance, then the accuracy of clearance determination is improved, but the device complexity increases
Solution Approach 1:
The patent applies universality by using existing onboard sensors (accelerometers, gyroscopes, or camera systems) for multiple purposes - both for basic vehicle operation and for posture detection. This multi-functionality approach allows accurate clearance determination without adding dedicated posture sensing equipment, thereby limiting the increase in device complexity
Data Source
AI summary
A controller and a control method assists a rider of a lean vehicle. An acquisition section of a controller acquires environment information about an environment around the lean vehicle in response to an output from an environment detector mounted to the lean vehicle or via a wireless communication with another vehicle or an infrastructure equipment. The execution section executes a driving assistance operation for the rider according to the environment information. The acquisition section acquires a reference clearance information by using a posture information of the lean vehicle. The reference clearance information is information about a reference clearance that is a reference used in a determination whether there is a space through which the lean vehicle slips or a determination whether it is safe for the lean vehicle to slip through. The execution section executes the driving assistance operation based on the reference clearance information.