Motorcycle Haptic Warning Control for Faster Direction Recognition
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional controllers for straddle-type vehicles perform uniform haptic motions, making it difficult for riders to identify specific objects or events, particularly due to the lack of additional warning mechanisms like instrument panels or speakers, leading to delayed focus identification.
Innovation Solution
A controller for a rider-assistance system that determines the necessity of warnings and performs haptic motions by changing the braking force priority between the front and rear wheels to indicate the focus direction, reducing or increasing acceleration/deceleration momentarily.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If uniform haptic motion is performed on both wheels, then the warning system is simple to implement, but the rider cannot quickly identify the direction or nature of the warning
Solution Approach 1:
The warning system segments the haptic feedback by independently controlling the front and rear wheels. Instead of applying uniform haptic motion to the entire vehicle, the controller divides the feedback into separate segments (front wheel and rear wheel) that can be activated independently based on the warning type, enabling directional information transmission.
Solution Approach 2:
The system applies local quality by providing different haptic feedback characteristics to different parts of the vehicle (front vs. rear wheels). Each wheel receives haptic motion with specific properties (timing, intensity, duration) tailored to the type of warning, allowing the rider to distinguish between various warning conditions based on the localized feedback pattern.
2Loss of time
If haptic motion is applied to both wheels simultaneously, then the warning is noticeable, but the rider delays in identifying the specific object or event to focus on
Solution Approach 1:
The system employs periodic action by applying haptic motion in specific time sequences to different wheels. The controller activates haptic feedback on the front or rear wheel at different times or with different durations based on the warning type, creating a temporal pattern that enables the rider to quickly identify the nature and direction of the warning without delay.
3Device complexity
If the same haptic motion is used for all warning types, then the control system is simple, but additional warning mechanisms (instrument panels, speakers) are needed for effective identification
Solution Approach 1:
The haptic feedback system achieves multi-functionality by using a single warning mechanism (haptic motion on wheels) to convey multiple types of information. By varying the parameters of haptic motion (which wheel, timing, intensity, duration) based on the warning type, the system replaces the need for multiple separate warning devices while maintaining comprehensive information transmission.
Data Source
Figure 1~2
Figure 3
AI summary
The present invention obtains a controller and a control method capable of hastening identification of an object or an event to be focused by a rider of a straddle-type vehicle, the rider having perceived haptic motion. A controller (51) for a rider-assistance system (50) mounted to a straddle-type vehicle (100) includes: a determination section that determines necessity of a warning given to the rider; and a haptic motion performing section that performs haptic motion at least once to reduce or increase acceleration/deceleration of the straddle-type vehicle (100) only for a moment. The haptic motion performing section changes a priority of each wheel (3, 4) at the time of changing a braking force to reduce or increase the acceleration/deceleration only for the moment in the haptic motion according to a focusing direction that is a direction in which the rider should focus by the warning.