Motorcycle Rider-Assist Control for Automatic Stop and Crawl
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Solution Overview
Problem
Conventional rider-assistance systems require riders to manually cancel drive operations and engage the brake when stopping or reducing speed, which can be inconvenient and reduce assistance performance.
Innovation Solution
A controller for a rider-assistance system that acquires positional relationship information between a motorcycle and a leading vehicle, executing first speed control to adjust speed based on this information. If necessary, it automatically generates deceleration to stop or crawl the motorcycle while the rider operates the drive section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the speed control operation is executed to adjust positional relationship between the motorcycle and another vehicle, then the speed control performance is improved, but the rider has to manually cancel drive operation and operate brake section which reduces assistance performance
Solution Approach 1:
The system performs self-service by automatically executing stop or crawl operations when the determination section detects necessity, without requiring rider intervention. The execution section autonomously controls the brake system to generate deceleration, allowing the system to serve itself in completing the stopping task rather than requiring manual rider operation.
Solution Approach 2:
The determination section continuously monitors travel conditions and preliminarily determines the necessity to stop or crawl before the rider would need to manually operate the brake. By detecting stop necessity in advance and automatically executing the stopping action, the system performs the brake operation before the rider would need to intervene, thereby eliminating the manual operation burden.
2Device complexity
If the system requires rider to cancel drive operation and engage brake manually, then the drive system control is simplified, but the assistance performance for rider is reduced
Solution Approach 1:
The system merges the drive operation section and brake operation section controls by integrating their functions in the execution section. When stop necessity is determined, the execution section simultaneously manages both the drive system cancellation and brake system activation, combining what were previously separate manual operations into a single automated control action that improves assistance performance.
Solution Approach 2:
The execution section is designed with multi-functionality to handle both speed control during driving and automatic stop/crawl operations. This universal control capability allows the same section to manage normal speed adjustment and emergency stopping without requiring separate control mechanisms, thereby improving assistance performance while maintaining reasonable system complexity.
3Ease of operation
If automatic deceleration is generated while rider operates drive section, then the stopping assistance is improved, but the control complexity increases
Solution Approach 1:
The controller is segmented into distinct functional sections: the determination section that detects stop necessity, and the execution section that generates automatic deceleration. This segmentation allows the stopping assistance function to be added as a modular component without fundamentally complicating the overall control structure, as each section has a dedicated, well-defined responsibility.
Solution Approach 2:
The determination section acts as an intermediary between the rider's drive operation and the execution of automatic deceleration. It monitors travel conditions and mediates by determining when stop action is necessary, then triggers the execution section to generate appropriate deceleration. This intermediary layer manages the control complexity by providing a clear decision-making interface between rider input and system response.
Data Source
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AI summary
The invention obtains a controller and a control method capable of improving assistance performance for a rider. In a controller for a rider-assistance system, while the rider operates a drive operation section, an execution section executes first speed control operation to control a speed of a motorcycle (100) on the basis of positional relationship information between the motorcycle (100) and another vehicle (200) that travels in front of the motorcycle (100). In the case where the presence of the necessity to stop the motorcycle (100) or make the motorcycle (100) become a crawl is determined during execution of the first speed control operation, the execution section executes second speed control operation to automatically generate deceleration to the motorcycle (100) and to stop the motorcycle (100) or make the motorcycle (100) become the crawl while the rider operates the drive operation section.