Dual Battery Switch Circuit for Motor Energy Recycling
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Solution Overview
Problem
Conventional motor-driven bicycles waste electrical power due to continuous motor operation during braking and require inconvenient manual charging, as they only support charging from electrical mains.
Innovation Solution
A switch circuit with a power unit comprising a first battery for supplying energy and a second battery for storing energy, controlled by a switch module that switches functions based on a signal, integrated into a motor energy recycling system to efficiently recycle and manage electrical energy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the motor continues to work during braking to maintain motor function, then the motor can provide continuous propulsion, but electrical power is wasted due to inability to recover energy
Solution Approach 1:
The patent converts the harmful effect of motor inertia during braking (which causes energy waste) into a beneficial effect by enabling the motor to function as a generator. The motor's continued operation during braking is transformed from a waste-causing condition into an energy recovery opportunity, where kinetic energy is converted back to electrical energy and stored in the second battery.
Solution Approach 2:
The motor is designed to perform multiple functions: it acts as a motor during normal operation and as a generator during braking. This multi-functionality allows the same component to both consume and produce electrical energy, eliminating the need for separate motor and generator components while reducing overall energy loss.
2Device complexity
If only one battery is used for both power supply and energy storage, then the system structure is simplified, but the system cannot efficiently manage energy recycling and has limited charging flexibility
Solution Approach 1:
The battery system is segmented into two distinct batteries: a first battery dedicated to power supply and a second battery dedicated to energy storage and recycling. This segmentation allows independent optimization of each battery's function, enabling efficient energy management where the first battery provides stable power and the second battery captures regenerative energy during braking.
Solution Approach 2:
The switch module acts as an intermediary between the two batteries, intelligently controlling energy flow based on system conditions. It determines when to charge the second battery from the motor during braking, when to supply power from the first battery, and when to transfer energy between batteries, thereby optimizing overall system efficiency.
3Ease of operation
If charging is only available from electrical mains, then the power source is reliable, but the system lacks flexibility and cannot be charged anytime
Solution Approach 1:
The system performs self-charging during braking operations through regenerative energy recovery. The second battery automatically captures and stores energy generated by the motor during braking without requiring external charging infrastructure, enabling the system to recharge itself during normal operation and providing charging flexibility independent of electrical mains availability.
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
The system effectively recycles energy generated during motor operation and stores it for later use, reducing waste and enabling flexible charging, enhancing the convenience and efficiency of electrical energy use in motor-driven bicycles.
Implementation Method 1
The power unit includes a first battery and a second battery, in which the first battery is configured to supply electrical energy, and the second battery is configured to store electrical energy
Implementation Method 2
The motor is configured to generate energy according to a driving signal. The energy recycling circuit is electrically coupled to the motor and configured to recycle the energy from the motor
Data Source
AI summary
A switch circuit and a motor energy recycling system are disclosed herein. The switch circuit includes a power unit and a switch module. The power unit includes a first battery and a second battery, in which the first battery is configured to supply the electrical energy and the second battery is configured to store the electrical energy. The switch module is configured to switch the first battery to store the electrical energy and to switch the second battery to supply the electrical energy, according to a switch signal.