Lean Vehicle Assistance Control Using Posture-Based Clearance
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Solution Overview
Problem
Conventional rider assistance systems fail to account for the varying space occupied by lean vehicles due to their posture changes during turns, leading to inappropriate assistance operations.
Innovation Solution
A controller and method that acquires environment information using detectors and wireless communication, incorporating posture information to determine reference clearance, enabling appropriate driving assistance operations for lean vehicles.
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 assistance operations deteriorates due to posture-induced space changes
Solution Approach 1:
The patent applies dynamics by transitioning from fixed space assumptions to dynamic space calculation based on vehicle posture. The control device calculates reference clearance information that varies with lean vehicle posture during turns, allowing the assistance system to adapt to changing spatial requirements as the vehicle leans into curves
Solution Approach 2:
The patent changes the parameter of space representation from a fixed value to a variable dependent on posture information. By calculating reference clearance based on detected posture data, the system adjusts the spatial parameters dynamically to reflect actual vehicle occupancy during different operating conditions
2Measurement precision
If rider assistance systems consider posture-induced space changes, then the accuracy of assistance operations is improved, but the device complexity increases due to additional sensors and calculations
Solution Approach 1:
The control device performs multiple functions using integrated processing: it detects posture information, calculates reference clearance information, and executes assistance operations all within a single control unit. This multi-functional approach reduces overall system complexity despite the increased computational requirements for accurate posture-based space calculation
3Ease of operation
If conventional systems assume constant vehicle space, then the ease of operation is maintained, but the reliability of safety determinations deteriorates in turning scenarios
Solution Approach 1:
The system implements feedback by continuously detecting posture information and using it to update reference clearance calculations. This closed-loop approach ensures that safety determinations are based on current vehicle state, significantly improving reliability in turning scenarios where space occupancy changes dynamically
Data Source
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AI summary
The present disclosure provides a controller and a control method that appropriately assist a rider of a lean vehicle. A controller has an acquisition section and an execution section. The acquisition section acquires an environment information about an environment around the lean vehicle (100). The acquisition section acquires the environment information in response to an output from an environment detector mounted to the lean vehicle (100) 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 that is information about a posture of the lean vehicle (100). The reference clearance information is information about a reference clearance (S) that is a reference used in a determination whether there is a space through which the lean vehicle (100) slips or a determination whether it is safe for the lean vehicle (100) to slip through. The execution section executes the driving assistance operation based on the reference clearance information.