Electric Bicycle Dongle Module USB to CAN Signal Conversion
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Solution Overview
Problem
The existing controlling systems for electric bicycles are cumbersome and costly due to high hardware complexity in the console, requiring removal and replacement of wires for testing, which is time-consuming and inconvenient, especially when the console is damaged.
Innovation Solution
A controlling system that includes a dongle module capable of converting USB signals to CAN signals, allowing for control of electric elements connected to a CAN bus without the need to remove wires, thereby reducing console hardware complexity and enhancing flexibility, using a dongle module with a first connecting port for the controlling end and a second connecting port detachably connected to the console for signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the console includes a signal conversion circuit to decode signal transmission with different interface, then the console can control electric elements with different interfaces, but the hardware complexity and volume of the console is increased
Solution Approach 1:
The signal conversion function is segmented from the console and placed in a separate dongle module. The dongle contains the USB to CAN signal conversion circuit, while the console only needs a simple connecting port. This segmentation allows interface compatibility without increasing console hardware complexity.
Solution Approach 2:
The dongle module acts as an intermediary between the USB controlling end and the CAN bus system. It mediates the signal conversion process, translating USB signals to CAN signals without requiring the console to handle multiple interface types directly.
2Ease of repair
If the console is damaged, a repairer needs to remove and replace the console and move or remove wires for testing, then the repair process can be completed, but the processing steps are increased and inconvenient
Solution Approach 1:
The system is segmented into replaceable modules: the dongle module and the console. When the console is damaged, only the console needs to be replaced while the dongle module remains intact. This reduces repair steps and time compared to replacing the entire integrated system.
Solution Approach 2:
The dongle module is pre-configured with the signal conversion circuit and connected to the CAN bus before the console is installed. This preliminary setup allows the console to be easily swapped without requiring wire reconfiguration or complex reassembly, significantly reducing repair time.
3Ease of operation
If each electric bicycle is equipped with such the console, then the control function is provided, but the cost is relatively high
Solution Approach 1:
The dongle module combines the USB to CAN signal conversion circuit with the CAN bus connection in a single integrated unit. This merging eliminates the need for separate conversion circuits in each console, reducing overall system cost while maintaining full control functionality.
Solution Approach 2:
The dongle module serves multiple functions: it acts as a USB to CAN converter, a communication interface, and a persistent configuration storage unit. This multi-functionality reduces the need for additional components in the console, lowering the overall system cost while providing comprehensive control capabilities.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces hardware complexity in the console, allows for flexible testing without wire removal, and enables continued functionality even if the console is damaged, making repairs more practical and cost-effective.
Implementation Method 1
the dongle is configured to convert the USB signal into a CAN signal
Data Source
AI summary
A controlling system for an electric bicycle is connected to a CAN bus of the electric bicycle and a controlling end, and configured to control a plurality of electric elements which are signally connected to the CAN bus. A dongle module includes a first connecting port, a dongle and a second connecting port. The controlling end is configured to transmit a USB signal to the first connecting port. One end of the dongle is coupled to the first connecting port, and the dongle is configured to convert the USB signal into a CAN signal. The second connecting port is coupled to another end of the dongle. A console includes a console port. The console port is detachably connected to the second connecting port and coupled to the CAN bus. The CAN signal is transmitted to the CAN bus via the second connecting port and the console port.