Technologies

Smart Wireless Charger for Mobile Devices, Robots, and Vehicles


Abstract/Technology Overview

Electric Vehicles (EV) and Autonomous Electric Vehicle (AEVs) with ten times cheaper running costs and minimal maintenance costs compared to vehicles powered by internal combustion engines is poised to disrupt the automotive industry. These factors and the environmental impact of the petrol based transport infrastructure has led to renewed interest in an electric transport infrastructure. To power EVs and AEVs, charging currently relies mainly on two contact based methods, battery swapping and contact based charging. The first method is not practical for big batteries and requires human intervention. The second method requires accurate docking, larger maneuvering space, slow docking, exposure of live connector and mechanical wear out is common.

The technology described herein is related to the development of a wireless charger technology to transfer both power (kW level) and data. The charger consists of transmitter power unit and coil module, and receiver power unit and coil module. The proposed wireless charging solutions are based on state-of-the-art power devices that allow high efficiency and high density design. This makes the solution compact, lightweight, and has high tolerance to EVs and AEVs positioning. In addition, the innovative design approach based on modularity allows mass production of converters while still maintaining cost efficient customization of coil design.


Technology Features, Specifications and Advantages

Technical specifcations of the technology are as follows:

  • Wireless Power Transfer (Output): 3kW
  • Power Supply (Input): 220V AC, 50/60 Hz, Single Phase
  • Operating Frequency Range: 85 kHz - 350 kHz
  • Z Gap (Optimal): 30 cm
  • Communication and bi-directional data transfer features

Key advantages of this technology include:

  • Operational efficiency and cost saving
  • Convenience & Intuitive (no more forget to charge)
  • Maintenance free, no contact or moving parts
  • Avoids the issues of tripping over the cables, exposed connector
  • Weather proofing is easier


Potential Applications

  • Automatic Guided Vehicle (AGV), Robots
  • Electric Vehicle (EV) & Autonomous Electric Vehicle (AEV)
  • Battery Powered Mobility (golf car, indoor car, fork lift, personal mobility devices, etc.)


Customer Benefit

  • Operational efficiency and cost saving
  • Convenience & Intuitive 
  • Maintenance free, no contact or moving parts
  • Communication and bi-directional data transfer features
  • Avoids the issues of tripping over the cables, exposed connector
  • Weather proofing is easier

OVERVIEW
Contact Person

Chin Foong Tong

Organisation

Xnergy Autonomous Power Technologies

Technology Category
  • Electronics
  • Energy
  • Power Conversion & Condition System
  • Smart Cities
  • Assembly / Automation / Robotics
Technology Readiness Level
  • TRL 6