In-Motion Wireless Charging Speed Control for Vehicles
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Solution Overview
Problem
Existing wireless charging technologies for autonomous driving vehicles face inefficiencies due to varying driving speeds and locations, requiring optimization of charging processes to ensure effective power transmission while the vehicle is in motion.
Innovation Solution
A vehicle system comprising a wireless power receiver, transceiver, and controller that detects battery charging states, determines optimal driving speeds for efficient wireless charging, and adjusts routes or speeds to maximize power reception efficiency, communicating with wireless power transmitters to manage power transmission parameters and ensure efficient charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless charging is performed while the vehicle is driving at varying speeds, then charging can be conducted during normal operation, but charging efficiency varies and becomes unreliable
Solution Approach 1:
The system dynamically adjusts the driving speed to match optimal charging speeds determined through communication with the wireless power transmitter. The controller modifies vehicle speed based on real-time charging conditions, transforming the static charging process into a dynamic adaptation to varying speeds, thereby maintaining reliable power reception while preserving the ability to charge during normal driving operations.
Solution Approach 2:
The system implements a feedback mechanism where the controller communicates with the wireless power transmitter to receive information about optimal charging speeds. Based on this feedback, the controller adjusts the vehicle's driving speed to maintain optimal charging efficiency. This closed-loop control ensures that charging reliability is maintained by continuously adapting to the charging conditions and transmitter capabilities.
2Productivity
If the vehicle searches for optimal driving speed through exhaustive search across all speed ranges, then maximum charging efficiency can be achieved, but time and energy are wasted
Solution Approach 1:
The system performs preliminary communication with the wireless power transmitter before actual charging begins. Through this preliminary action, the controller obtains information about optimal charging speeds and transmitter capabilities in advance. This allows the vehicle to directly adjust to the optimal speed without performing an exhaustive search during the charging process, significantly reducing the time and energy wasted on speed optimization while still achieving maximum charging efficiency.
3Adaptability or versatility
If wireless charging infrastructure is introduced, then autonomous vehicles can charge while driving, but charging efficiency depends on vehicle specifications and driving conditions
Solution Approach 1:
The system changes operating parameters, specifically driving speed, to optimize charging efficiency. The controller adjusts the vehicle speed based on communication with the wireless power transmitter, adapting the driving conditions to match the charging requirements. This parameter adjustment resolves the contradiction by making charging efficiency dependent on controlled speed parameters rather than solely on vehicle specifications and uncontrolled driving conditions.
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 enhances wireless charging efficiency by determining optimal driving speeds and routes, allowing vehicles to charge effectively while driving without exhaustive searches across all possible speed ranges, thereby ensuring reliable and efficient power reception.
Implementation Method 1
a wireless power receiver configured to wirelessly receive power from a wireless power transmitter
Data Source
AI summary
A vehicle for wireless charging and a method therefor, and an apparatus for wireless charging and a method therefor, are provided. The vehicle for wireless charging includes: a wireless power receiver to wirelessly receive power from a wireless power transmitter; a transceiver to communicate with the wireless power transmitter; and a controller to: control the wireless power receiver; detect a battery charging state and determine whether wireless charging is needed while driving the vehicle; search for or determine an optimal driving speed for wireless charging while driving the vehicle; and perform wireless charging while driving the vehicle at the searched speed or the determined optimal driving speed.