Brake Control Device Using Environmental Speed Data
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Solution Overview
Problem
Existing brake control systems for human-powered vehicles do not optimally execute ABS control, as they do not adequately consider the vehicle's traveling environment and speed relative to the road surface, leading to suboptimal braking performance.
Innovation Solution
A brake control device with an electronic controller that executes ABS control based on the relationship between the vehicle's speed in the traveling environment and its rotational speed, using detectors like imaging devices, LIDAR, and GPS sensors to determine the vehicle's position and speed relative to the road surface, and adjusts braking force accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ABS control is executed based only on rotational speed of the rotating body, then the control system is simple, but the braking performance is suboptimal because traveling environment is not considered
Solution Approach 1:
The patent introduces a mediator (traveling environment information obtained through imaging devices, LIDAR, GPS) that bridges the gap between the rotating body's rotational speed and the actual braking performance. This mediator provides contextual information about the road surface and environment, allowing the ABS control to be optimized without directly complicating the core braking mechanism.
Solution Approach 2:
The system implements feedback by continuously monitoring both the rotational speed of the rotating body and the traveling environment, then using this combined information to adjust the ABS control in real-time. The electronic controller receives feedback from multiple sensors and adjusts braking force based on the relationship between first speed (environment-based) and second speed (rotation-based).
2Measurement precision
If multiple detectors are added to obtain traveling environment information, then the ABS control accuracy is improved, but the device complexity increases
Solution Approach 1:
The electronic controller is designed to handle multiple functions: it processes rotational speed data from the rotation detector, analyzes imaging data from the imaging device, processes LIDAR data, and integrates GPS position information. This multi-functional controller reduces the need for separate dedicated processing units for each sensor type, thereby improving measurement precision without proportionally increasing system complexity.
Solution Approach 2:
The patent merges multiple detection functions into a unified control system. The electronic controller combines data from the rotation detector, imaging device, LIDAR, and GPS into a single integrated ABS control algorithm that calculates the relationship between first speed and second speed, thereby achieving high measurement precision through data fusion rather than through multiple independent systems.
Data Source
AI summary
A brake control device includes an electronic controller that executes an ABS control on a rotating body of a human-powered vehicle. The electronic controller executes the ABS control based on a relationship between a first speed and a second speed related to the human-powered vehicle. The first speed includes a speed of the human-powered vehicle based on information of a traveling environment. The second speed includes a speed of the human-powered vehicle based on a rotational speed of the rotating body.