Electric Transfer Controller Isolates User Interface During Battery Contact Failure
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Solution Overview
Problem
Contact failures in battery packs of electric transfer devices, such as electric bicycles and vehicles, cause disruptions in power supply to both the motor and user interfaces, leading to incomplete functionality when the device encounters uneven road surfaces, resulting in power loss to the user interface until manually reset.
Innovation Solution
A controller is implemented to manage an auxiliary storage system, which provides continuous power to the user interface during contact failures by disconnecting power to the motor, ensuring the user interface remains operational and reconnects once the failure is resolved, using a switch controlled by the controller to manage power flow between the auxiliary storage and the driver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery pack is directly connected to both the driver and user interface, then power supply is simple and direct, but contact failure causes complete power loss to both systems
Solution Approach 1:
The power supply system is segmented into two independent paths: one path connects the battery pack to the driver through a first switch, and another path connects the battery pack to the user interface through a second switch. This segmentation allows independent control of power supply to each component, so that contact failure in one path does not affect the other path, thereby maintaining user interface operation continuity while managing system complexity through modular switch control.
Solution Approach 2:
Two switches are introduced as intermediary components between the battery pack and the loads (driver and user interface). These switches act as mediators that can selectively connect or disconnect power supply paths. When contact failure is detected, the switches can isolate the affected path while maintaining power supply to the other path, thus improving reliability without requiring complete system redesign.
2Reliability
If the battery pack connection is disrupted on uneven roads, then vibration and impact occur, but power supply to both driver and user interface is interrupted
Solution Approach 1:
The controller continuously monitors the connection status of the battery pack and provides feedback control of the switches. When contact failure is detected (e.g., due to vibration or impact on uneven roads), the controller receives feedback signals and automatically adjusts the switch states to maintain power supply to the user interface. This feedback mechanism ensures power supply stability and automatic power restoration without requiring manual intervention, thereby improving both reliability and ease of operation.
Solution Approach 2:
The system performs preliminary detection of contact failure conditions and preemptively switches power paths before complete power loss occurs. The controller monitors connection status in advance and prepares alternative power paths, so when vibration or impact causes contact disruption, the user interface already has an active backup power path, ensuring continuous operation and automatic restoration without manual reset.
3Reliability
If manual reset is required after contact failure, then power can be restored, but user experience is degraded due to interruption
Solution Approach 1:
The system implements self-service automatic recovery functionality where the controller autonomously detects contact failure, manages switch states, and restores power supply to the user interface without requiring manual user intervention. The controller continuously monitors connection status and automatically re-establishes power paths when failures occur, making the system self-healing and eliminating the need for manual reset operations, thereby improving ease of operation while maintaining reliable power restoration capability.
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 maintains user interface functionality during contact failures, preventing power loss and ensuring seamless operation by isolating the user interface from the driver during disruptions and reconnecting power once the battery pack is reestablished, thus enhancing the reliability and user experience of electric transfer devices.
Implementation Method 1
The auxiliary storage may include a capacitor
Data Source
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AI summary
An electric transfer apparatus includes a driver connected to a battery pack, a user interface connected to the battery pack, an auxiliary storage connected to the user interface, a switch connected between the auxiliary storage and the driver, and a controller to control the battery pack and the switch. The controller controls the switch to be turned off when a contact failure of the battery pack occurs.