Adaptive Transmission Control for Human-Powered Vehicles

The patent changes the control parameters from fixed predetermined conditions to dynamic detection of multiple parameters including acceleration, vibration, steering angle, and posture. The electronic controller adjusts shifting decisions based on real-time variations in these parameters, enabling adaptive control that matches diverse riding conditions while maintaining manageable system complexity through structured parameter evaluation.

The patent implements feedback by using detectors to continuously monitor riding conditions (acceleration, vibration, steering angle, posture) and feeding this information back to the electronic controller. The controller uses this feedback to dynamically adjust shifting decisions, ensuring appropriate gear changes under varying conditions while maintaining a relatively simple control architecture through closed-loop control.

The patent applies dynamics by making the motor control adaptive rather than fixed. The electronic controller dynamically adjusts motor operation during shifting based on real-time detection of acceleration, vibration, and steering conditions. The motor drives the transfer body when needed for rapid shifting but is inhibited when vehicle propulsion would conflict with rider intentions, achieving both speed and stability through dynamic control.

The patent implements preliminary anti-action by detecting conditions before they become problematic. The detector monitors acceleration and vibration levels in advance, and the electronic controller preemptively inhibits motor-driven propulsion when it detects conditions that would cause unwanted vehicle movement. This prevents the harmful effect before it occurs, maintaining vehicle control stability while allowing beneficial motor assistance during appropriate shifting conditions.

The patent applies dynamics by making the shifting control adaptive to changing conditions. The electronic controller dynamically evaluates acceleration and vibration levels in real-time, adjusting shifting decisions based on the current riding state. During high acceleration or vibration, the controller modifies shifting behavior to maintain stability while still responding to rider demand, achieving both responsiveness and reliability through dynamic condition-based control.

The patent implements feedback by continuously monitoring acceleration and vibration conditions and using this information to adjust shifting decisions. The detector provides real-time feedback to the electronic controller, which modifies shifting operations based on the detected conditions. This closed-loop control ensures that shifting occurs only when stable, maintaining reliability while preserving responsiveness through intelligent feedback-based decision making.