Electronic Gear Shifting With Virtual Speed and Sound Feedback
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Solution Overview
Problem
Electric motorcycles lack a gear-shifting function and the associated auditory and visual changes, which limits the riding experience and fails to provide different motor torque outputs during specific riding conditions.
Innovation Solution
An electronic gear-shifting system with sound effects and display is integrated into an electric motorcycle, comprising an electronic shift unit, an electronic clutch unit, a throttle position sensor, a control unit, a sound effect controller, and a dashboard. This system allows for gear shifting operations without adding mechanical gear-shift mechanisms, creating visual and auditory effects similar to traditional gear-shifting-type motorcycles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional mechanical gear-shift mechanisms (clutch, gearbox) are added to electric motorcycles, then gear-shifting function and different torque outputs are achieved, but device complexity and structural complexity increase significantly
Solution Approach 1:
The patent replaces the traditional mechanical gear-shift system (clutch, gearbox, shift cables) with an electronic control system. The control unit receives shift signals from electronic shift units (buttons or pedals) and controls the power motor to simulate gear-shifting torque characteristics through electronic control of motor current and magnetic field, thereby achieving gear-shifting function without mechanical transmission components.
Solution Approach 2:
The patent creates a virtual gear-shifting system that copies the functional characteristics of mechanical gear-shifting. The control unit simulates different gear ratios and torque curves by controlling the power motor's electromagnetic characteristics, reproducing the acceleration patterns and torque delivery of traditional motorcycles without actual mechanical gears.
2Adaptability or versatility
If mechanical gear-shift mechanisms are added to electric motorcycles, then gear-shifting operation is enabled, but weight of the motorcycle increases
Solution Approach 1:
The patent eliminates heavy mechanical components (clutch assembly, gearbox housing, shift cables, linkages) by replacing them with lightweight electronic components (control unit, sensors, buttons/pedals). The power motor itself, already present in the electric motorcycle, is used to provide gear-shifting torque characteristics through electronic control, avoiding the need for additional mechanical transmission parts that would add weight.
3Ease of operation
If electronic gear-shifting system with sound effects and display is implemented, then auditory and visual changes are provided to enhance riding experience, but device complexity increases
Solution Approach 1:
The control unit serves multiple functions: it controls the power motor for gear-shifting torque simulation, manages the dashboard display for visual feedback, and controls the sound effect system for auditory feedback. By integrating these control functions into a single control unit, the patent avoids the need for separate control circuits for each function, thereby reducing overall system complexity while providing comprehensive rider feedback.
Solution Approach 2:
The patent combines the display system and sound effect system into the existing electronic architecture of the electric motorcycle. The dashboard display merges with the motorcycle's existing instrument cluster, and the sound effects are integrated with the motorcycle's existing audio system, avoiding the need for completely separate systems and reducing overall complexity.
4Ease of operation
If virtual speed calculation and display is implemented, then visual representation of gear-shifting is provided, but measurement precision requirements increase
Solution Approach 1:
The patent creates a virtual speed display that copies the visual representation of speed shown in traditional motorcycles with mechanical speedometers. The control unit calculates virtual speed based on the relationship between motor rotational speed and wheel speed for different simulated gear ratios, displaying this virtual speed on the dashboard to provide familiar visual feedback that mimics traditional speedometer behavior during gear-shifting operations.
Data Source
AI summary
The present invention is an electronic gear-shifting system with sound effects and display, adapted to be mounted on an electric motorcycle, and including an electronic shift unit, an electronic clutch unit, a throttle position sensor, correspondingly outputting a shift signal, a clutch signal and a throttle position signal according to the operation of the rider, a control unit receiving the aforementioned signals to determine a target gear position of the electric motorcycle and control a power motor of the electric motorcycle. The electric motorcycle converts the real speed of the power motor into a virtual speed through an algorithm and lets a dashboard and a sound effect controller of the electric motorcycle output according to the virtual speed. In addition to simulate the power performance of a general gear-shifting-type motorcycle, the electric vehicle also has visual and auditory variations.