Ground Power Resonance Circuit Standby Control for Fast Restart
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Solution Overview
Problem
Existing noncontact power transfer systems face delays in restarting power transfer after interruptions, requiring a restart from the beginning.
Innovation Solution
A ground power supplying apparatus with a resonance circuit and control device that shifts between a standby state and a power transmission active state based on predetermined suspension conditions, allowing quick restarts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power transfer is restarted from the beginning after interruption, then processing reliability is ensured, but time loss increases
Solution Approach 1:
The system performs preliminary actions by maintaining the resonance circuit in a warm standby state with weak power supply, keeping processing routines pre-configured and ready. When interruption occurs, the system can quickly resume from the interrupted point rather than restarting from the beginning, as the preliminary setup is already in place.
Solution Approach 2:
The system dynamically adjusts the power supply state of the resonance circuit between main power transmission state and standby state based on whether a vehicle is detected. The control device shifts states based on suspension conditions, allowing the system to be flexible in power consumption while maintaining quick restart capability through the standby state.
2Speed
If weak power is continuously supplied to maintain quick restart capability, then power transfer restart speed improves, but energy consumption increases
Solution Approach 1:
The system uses periodic action by supplying weak power only during standby periods when no vehicle is detected, and switching to main power transmission only when needed. The control device periodically checks suspension conditions and adjusts power supply accordingly, avoiding continuous weak power supply and reducing energy consumption while maintaining restart 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
Enables rapid resumption of power transfer by transitioning between states when suspension conditions are met or not met, minimizing downtime.
Implementation Method 1
noncontact power supplying systems using transmission methods such as magnetic field coupling (electromagnetic induction), electric field coupling, magnetic field resonant coupling (magnetic field resonance)
Implementation Method 2
noncontact power supplying systems using transmission methods such as magnetic field coupling (electromagnetic induction)
Data Source
AI summary
A ground power supplying apparatus provided with a power transmission apparatus having a resonance circuit and transmitting power to the vehicle and a control device shifting a state of the ground power supplying apparatus to a standby state when a predetermined suspension condition stands if the state of the ground power supplying apparatus is a main power transmission state or a power transmission active state and shifting a state of the ground power supplying apparatus to the power transmission active state when the suspension condition no longer stands if the state of the ground power supplying apparatus is the standby state.