Vehicle Locking System Wiring Switch for Interference Suppression
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle locking/unlocking systems using non-contact power transmission require complex specification changes to enable communication between charging and locking/unlocking controllers, causing user discomfort due to interference.
Innovation Solution
A locking/unlocking system with a power reception device, operation switch, locking/unlocking controller, signal determining part, and wiring switch that allows operation signals to be input directly into the controller during non-power-reception operations, suppressing power reception and storing signals for later output during power reception, thereby reducing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the operation switch is directly connected to the locking/unlocking controller, then the locking/unlocking operation is simple and fast, but interference occurs during non-contact power reception
Solution Approach 1:
The patent introduces a wiring switch as an intermediary component between the operation switch and the locking/unlocking controller. This wiring switch is controlled by the power reception controller to disconnect the operation signal path during power reception operations, thereby preventing interference while maintaining direct connection during normal operations.
Solution Approach 2:
The patent makes the wiring configuration dynamic by using a wiring switch that can change its connection state based on the power reception status. The wiring switch is switched by the power reception controller based on whether the power reception device is during the power reception operation, allowing the system to adapt its signal path configuration in real-time.
2Object-affected harmful factors
If the wiring switch is added to control signal path during power reception, then interference is reduced, but the device complexity increases
Solution Approach 1:
The power reception controller is given multiple functions: it not only controls the power reception operation but also controls the wiring switch to manage the signal path. This multi-functionality reduces the need for separate dedicated control components, thereby limiting the increase in device complexity.
3Object-affected harmful factors
If the operation signal is blocked during power reception, then interference is prevented, but the operation response time is delayed
Solution Approach 1:
The system proactively blocks the operation signal path using the wiring switch before interference can occur during power reception operations. This preliminary action prevents the need for complex signal filtering or correction mechanisms that would otherwise be required to handle interfered signals.
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 reduces user discomfort by minimizing interference during non-contact power transmission and allows for easy integration into existing configurations without significant changes to the locking/unlocking controller, ensuring reliable communication and efficient power management.
Implementation Method 1
a vehicle coil which is configured to receive power at a first frequency from a ground coil provided on a ground in a non-contact manner during a power reception operation
Implementation Method 2
a locking/unlocking controller that is configured to conduct wireless communication at a second frequency close to the first frequency with a key device located within a predetermined distance
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A locking/unlocking system includes: a power reception device having a vehicle coil provided in a vehicle and receiving power at a first frequency in a non-contact manner from a ground coil provided on the ground; an operation switch outputting an operation signal in response to a user operation; a locking/unlocking controller that, in response to an input of an operation signal, conducts wireless communication with a key device located within a predetermined distance at a second frequency close to the first frequency and that, in response to successful wireless communication with the key device, locks/unlocks a lock provided in the vehicle; a signal determining part that outputs an input operation signal to the locking/unlocking controller; and a wiring switch that connects wiring so that the operation signal output from the operation switch is input into the signal determining part during a power reception operation of the power reception device.